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Sample records for uno spazio europeo

  1. UNO's Afghanistan Collection.

    ERIC Educational Resources Information Center

    McKernan, M. D.

    This paper explores the background history and sources of the Afghanistan collection at the University Library, University of Nebraska at Omaha (UNO). Credit for the impetus behind the development of the collection is given to Chris Jung, a former UNO geography/geology faculty member; Ronald Roskens, then UNO chancellor; and the Afghanistan…

  2. Alenia Spazio: Space Programs for Solar System Exploration .

    NASA Astrophysics Data System (ADS)

    Ferri, A.

    Alenia Spazio is the major Italian space industry and one of the largest in Europe, with 2,400 highly skilled employees and 16,000 square meters of clean rooms and laboratories for advanced technological research that are among the most modern and well-equipped in Europe. The company has wide experience in the design, development, assembly, integration, verification and testing of complete space systems: satellites for telecommunications and navigation, remote sensing, meteorology and scientific applications; manned systems and space infrastructures; launch, transport and re-entry systems, and control centres. Alenia Spazio has contributed to the construction of over 200 satellites and taken part in the most important national and international space programmes, from the International Space Station to the new European global navigation system Galileo. Focusing on Solar System exploration, in the last 10 years the Company took part, with different roles, to the major European and also NASA missions in the field: Rosetta, Mars Express, Cassini; will soon take part in Venus Express, and is planning the future with Bepi Colombo, Solar Orbiter, GAIA and Exomars. In this paper, as in the presentation, a very important Earth Observation mission is also presented: GOCE. All in all, the Earth is by all means part of the Solar system as well and we like to see it as a planet to be explored.

  3. CASA Uno GPS orbit and baseline experiments

    NASA Technical Reports Server (NTRS)

    Schutz, B. E.; Ho, C. S.; Abusali, P. A. M.; Tapley, B. D.

    1990-01-01

    CASA Uno data from sites distributed in longitude from Australia to Europe have been used to determine orbits of the GPS satellites. The characteristics of the orbits determined from double difference phase have been evaluated through comparisons of two-week solutions with one-week solutions and by comparisons of predicted and estimated orbits. Evidence of unmodeled effects is demonstrated, particularly associated with the orbit planes that experience solar eclipse. The orbit accuracy has been assessed through the repeatability of unconstrained estimated baseline vectors ranging from 245 km to 5400 km. Both the baseline repeatability and the comparison with independent space geodetic methods give results at the level of 1-2 parts in 100,000,000. In addition, the Mojave/Owens Valley (245 km) and Kokee Park/Ft. Davis (5409 km) estimates agree with VLBI and SLR to better than 1 part in 100,000,000.

  4. Design Authority in the Test Programme Definition: The Alenia Spazio Experience

    NASA Astrophysics Data System (ADS)

    Messidoro, P.; Sacchi, E.; Beruto, E.; Fleming, P.; Marucchi Chierro, P.-P.

    2004-08-01

    In addition, being the Verification and Test Programme a significant part of the spacecraft development life cycle in terms of cost and time, very often the subject of the mentioned discussion has the objective to optimize the verification campaign by possible deletion or limitation of some testing activities. The increased market pressure to reduce the project's schedule and cost is originating a dialecting process inside the project teams, involving program management and design authorities, in order to optimize the verification and testing programme. The paper introduces the Alenia Spazio experience in this context, coming from the real project life on different products and missions (science, TLC, EO, manned, transportation, military, commercial, recurrent and one-of-a-kind). Usually the applicable verification and testing standards (e.g. ECSS-E-10 part 2 "Verification" and ECSS-E-10 part 3 "Testing" [1]) are tailored to the specific project on the basis of its peculiar mission constraints. The Model Philosophy and the associated verification and test programme are defined following an iterative process which suitably combines several aspects (including for examples test requirements and facilities) as shown in Fig. 1 (from ECSS-E-10). The considered cases are mainly oriented to the thermal and mechanical verification, where the benefits of possible test programme optimizations are more significant. Considering the thermal qualification and acceptance testing (i.e. Thermal Balance and Thermal Vacuum) the lessons learned originated by the development of several satellites are presented together with the corresponding recommended approaches. In particular the cases are indicated in which a proper Thermal Balance Test is mandatory and others, in presence of more recurrent design, where a qualification by analysis could be envisaged. The importance of a proper Thermal Vacuum exposure for workmanship verification is also highlighted. Similar considerations are

  5. Comparative study of numerical schemes of TVD3, UNO3-ACM and optimized compact scheme

    NASA Technical Reports Server (NTRS)

    Lee, Duck-Joo; Hwang, Chang-Jeon; Ko, Duck-Kon; Kim, Jae-Wook

    1995-01-01

    Three different schemes are employed to solve the benchmark problem. The first one is a conventional TVD-MUSCL (Monotone Upwind Schemes for Conservation Laws) scheme. The second scheme is a UNO3-ACM (Uniformly Non-Oscillatory Artificial Compression Method) scheme. The third scheme is an optimized compact finite difference scheme modified by us: the 4th order Runge Kutta time stepping, the 4th order pentadiagonal compact spatial discretization with the maximum resolution characteristics. The problems of category 1 are solved by using the second (UNO3-ACM) and third (Optimized Compact) schemes. The problems of category 2 are solved by using the first (TVD3) and second (UNO3-ACM) schemes. The problem of category 5 is solved by using the first (TVD3) scheme. It can be concluded from the present calculations that the Optimized Compact scheme and the UN03-ACM show good resolutions for category 1 and category 2 respectively.

  6. Behaviors, Attitudes and Knowledge of UNO Students Regarding Drugs, Alcohol and Tobacco: 1989.

    ERIC Educational Resources Information Center

    Hunnicutt, David; Davis, Joe

    1989-01-01

    This report describes alcohol, tobacco, and other drug use among 715 University of Nebraska at Omaha (UNO) students. The report focuses on drug use at the higher frequency levels, rather than reporting proportions who have ever used various drugs. The separate classes of drugs distinguished are alcohol, tobacco, cocaine, marijuana, and…

  7. Stacking up against Alternative Conceptions: Using Uno Cards to Introduce Discourse and Argumentation

    ERIC Educational Resources Information Center

    Dunac, Patricia S.; Demi, Kadir

    2013-01-01

    We engaged secondary science students in a teacher and student constructed Uno card game (UCG) to change their conceptual understanding of the various energy transformations. The paper outlines how we incorporated Toulmin's argumentation pattern (Toulmin 1958 "The Uses of Argument"(Cambridge: Cambridge University Press)) in the UCG,…

  8. Making Americans: UNO Charter Schools and Civic Education. Policy Brief 6

    ERIC Educational Resources Information Center

    Feith, David

    2013-01-01

    This policy brief is the third in a series of in-depth case studies exploring how top-performing charter schools have incorporated civic learning in their school curriculum and school culture. The UNO Charter School Network includes 13 schools serving some 6,500 students across Chicago. Located in predominantly Hispanic neighborhoods, the…

  9. Through Education into the World of Work. Uno Cygnaeus, the Father of Technology Education.

    ERIC Educational Resources Information Center

    Kantola, Jouko; Nikkanen, Pentti; Kari, Jouko; Kananoja, Tapani

    More than 100 years have passed since the death of Uno Cygnaeus (1810-1888), the father of Finnish folk schools and pioneer of educational arts and crafts. His accomplishments include design and organization of the folk school system, initiation of high class teacher training, and emphasis on the importance of women's education. Although his…

  10. The effect of tracking network configuration on GPS baseline estimates for the CASA Uno experiment

    NASA Technical Reports Server (NTRS)

    Wolf, S. Kornreich; Dixon, T. H.; Freymueller, J. T.

    1990-01-01

    The effect of the tracking network on long (greater than 100 km) GPS baseline estimates was estimated using various subsets of the global tracking network initiated by the first Central and South America (CASA Uno) experiment. It was found that best results could be obtained with a global tacking network consisting of three U.S. stations, two sites in the southwestern Pacific, and two sites in Europe. In comparison with smaller subsets, this global network improved the baseline repeatability, the resolution of carrier phase cycle ambiguities, and formal errors of the orbit estimates.

  11. Polycyclic aromatic hydrocarbons profiles of spent drilling fluids deposited at Emu-Uno, Delta State, Nigeria.

    PubMed

    Iwegbue, Chukwujindu M A

    2011-10-01

    The concentrations and profiles of polycyclic aromatic hydrocarbons were determined in spent drilling fluid deposited at Emu-Uno, Delta State of Nigeria. The total concentrations of polycyclic aromatic hydrocarbons in the spent drilling fluid deposits ranged between 40 and 770 μg kg(-1). The PAHs profile were predominantly 2- and 3-rings with acenaphthalene, phenanthrene, fluorene being the predominant PAHs. The prevalence of 2- and 3-rings PAHs in the spent drilling fluid deposits indicate contamination of the drilling fluids with crude oil during drilling. Incorporation of spent drilling fluids into the soil has serious implication for soil, surface water and groundwater quality.

  12. [Morphological characterization of experimental parodontitis during its treatment with a phyto-preparation uno de gato].

    PubMed

    Miminoshvili, Sh M; Gvamichava, T A; Mdinaradze, N L

    2007-06-01

    Examination of new methods of treatment of parodontitis is stipulated by the significant increase in the number of patients with parodontitis. Experiments were conducted on white outbred male rats weighing 150-200 gr, which were divided into three groups. The first group was a reference one (n=20). The second group includes induced parodontitis (n=15) and the third group includes induced parodontitis with the treatment of uno de gato (n=19). We simulated parodontitis in the following way: on the lower nippers in the field of a neck we attached a ligature causing mechanical damage. We used a intramuscular injection of Nembutal as a means of narcotization (0.1 ml-10 g per mass). The present work is dedicated to morphological studies of the structures of damaged parodontium during its treatment with a phyto-preparation uno de gato. The undertaken treatment has demonstrated partial restoration of the mucous tunic of the gum. Newly formed capillaries were found in the connective tissue. The fibroblasts are mostly mature and collagen-producing. Thus, the study has demonstrated that there is a certain tendency of the tissue restoration and the treatment has produced the best therapeutic results.

  13. Instrumental Develovement of 50 Meters Free Style Swimming Speed Measurement Based on Microcontroller Arduino Uno

    NASA Astrophysics Data System (ADS)

    Badruzaman; Rusdiana, A.; Gilang, M. R.; Martini, T.

    2017-03-01

    This study is purposed to make a software and hardware instrument in controlling the velocity of 50 meters free style swimming speed measurement based on microcontroller Arduino Uno. The writer uses 6 participants of advanced 2015 college students of sport education. The materials he uses are electronical series of microcontroller Arduino Uno base, laser sensors shone on light dependent resistor, laser receiver functions as a detector of laser cutting block, cables as connector transfering the data. This device consist of 4 installable censors in every 10 meters with the result of swimming speed showed on the monitors using visual basic 6.0 software. This instrument automatically works when the buzzer is pushed and also runs the timer on the application. For the procedure, the writer asks the participants to swim in free style along 50 meters. When the athlete swims, they will cut the laser of every censors so that it gives a signal to stop the running timer on the monitoring application. The output result the writer gets from this used instrument is to know how fast a swimmer swim in maximum speed, to know the time and distance of acceleration and decelaration that happens. The result of validity instrument shows 0,605 (high), while the reliability is 0,833 (very high).

  14. Some tests of wet tropospheric calibration for the CASA Uno Global Positioning System experiment

    NASA Technical Reports Server (NTRS)

    Dixon, T. H.; Wolf, S. Kornreich

    1990-01-01

    Wet tropospheric path delay can be a major error source for Global Positioning System (GPS) geodetic experiments. Strategies for minimizing this error are investigted using data from CASA Uno, the first major GPS experiment in Central and South America, where wet path delays may be both high and variable. Wet path delay calibration using water vapor radiometers (WVRs) and residual delay estimation is compared with strategies where the entire wet path delay is estimated stochastically without prior calibration, using data from a 270-km test baseline in Costa Rica. Both approaches yield centimeter-level baseline repeatability and similar tropospheric estimates, suggesting that WVR calibration is not critical for obtaining high precision results with GPS in the CASA region.

  15. Under Utilization of Pancreas Transplants in Cystic Fibrosis Recipients in the United Network Organ Sharing (UNOS) Data 1987-2014.

    PubMed

    Usatin, D J; Perito, E R; Posselt, A M; Rosenthal, P

    2016-05-01

    Despite a high prevalence of pancreatic endocrine and exocrine insufficiency in cystic fibrosis (CF), pancreas transplantation is rarely reported. United Network for Organ Sharing (UNOS) data were used to examine utilization of pancreas transplant and posttransplant outcomes in CF patients. Between 1987-2014, CF patients (N = 4600) underwent 17 liver-pancreas, three lung-pancreas, one liver-lung pancreas, four kidney-pancreas, and three pancreas-only transplants. Of the 303 CF patients who received liver transplantation, 20% had CF-related diabetes (CFRD) before transplantation, and nine of those received a liver-pancreas transplant. Of 4241 CF patients who underwent lung transplantation, 33% had CFRD before transplantation, and three of those received a pancreas transplant. Of 49 CF patients who received a liver-lung transplant, 57% had CFRD before transplantation and one received a pancreas transplant. Posttransplantation diabetes developed in 7% of CF pancreas transplant recipients versus 24% of CF liver and 29% of CF lung recipients. UNOS has no data on pancreas exocrine insufficiency. Two-year posttransplantation survival was 88% after liver-pancreas transplant, 33% after lung-pancreas transplant, and 100% after pancreas-kidney and pancreas-only transplants. Diabetes is common pretransplantation and posttransplantation in CF solid organ transplant recipients, but pancreas transplantation remains rare. Further consideration of pancreas transplant in CF patients undergoing other solid organ transplant may be warranted.

  16. Designing using Lego and Uno-Stacko: A Playful Architecture for an Integrated Kindergarten and Elementary School

    NASA Astrophysics Data System (ADS)

    Muthmainnah, K.; Aryanti, T.; Ardiansyah, A.

    2017-03-01

    The integrated kindergarten and elementary school is a public educational facility used for early age and elementary education. Designated for children at 4-12 years of age, the design should meet the standards and requirements, while considering children’s needs in their development phase. This paper discusses the design of an integrated kindergarten and elementary school using the playful theme. Design was explored using LEGO and UNO-STACKO to create spaces that accommodate material exploration for children. The design takes the play concept as a medium of child’s learning in order to improve their ability and awareness of the surrounding environment. The design translates the playful theme into imaginary dimension, constructive-deconstructive shapes, and glide circulations concept. The spatial pattern is applied by considering children’s behavior in the designated ages to trigger their creativity improvement. The design is expected to serve as a model of an integrated kindergarten and elementary school architecture.

  17. Enhanced low current, voltage, and power dissipation measurements via Arduino Uno microcontroller with modified commercially available sensors

    NASA Astrophysics Data System (ADS)

    Tanner, Meghan; Eckel, Ryan; Senevirathne, Indrajith

    The versatility, simplicity, and robustness of Arduino microcontroller architecture have won a huge following with increasingly serious engineering and physical science applications. Arduino microcontroller environment coupled with commercially available sensors have been used to systematically measure, record, and analyze low currents, low voltages and corresponding dissipated power for assessing secondary physical properties in a diverse array of engineering systems. Setup was assembled via breadboard, wire, and simple soldering with an Arduino Uno with ATmega328P microcontroller connected to a PC. The microcontroller was programmed with Arduino Software while the bootloader was used to upload the code. Commercial Hall effect current sensor modules ACS712 and INA169 current shunt monitor was used to measure corresponding low to ultra-low currents and voltages. Stable measurement data was obtained via sensors and compared with corresponding oscilloscope measurements to assess reliability and uncertainty. Sensor breakout boards were modified to enhance the sensitivity of the measurements and to expand the applicability. Discussion of these measurements will focus on capabilities, capacities and limitations of the systems with examples of possible applications. Lock Haven Nanotechnology Program.

  18. Earth Systems Science and Elementary Teacher Preparation: The UNO Model for Improving Science and Mathematics Content and Pedagogy Skills

    NASA Astrophysics Data System (ADS)

    Hall, F. R.; Buxton, C.

    2002-05-01

    The University of New Orleans is located on the south-shore of Lake Pontchartrain. At UNO, we have established a unique collaboration between the Colleges of Science and Education in the preparation of preservice elementary school teachers. Earth Systems Science themes, based on the local environment, provide the framework for understanding science and mathematics content. In both the content and teaching methods courses, student learning revolves around hands-on, minds-on activies. In both classes, the age-appropriate technology is used as the students perform research projects on Lake Pontchartrain and the Mississippi River. The students are also required to practice their craft in both courses. In the science content courses, the students are required to research a topic that parallels the content learned during the semester, create lesson plans, and teach the subject to the class using inquiry-based methodology. In the teaching methods course, students are required to develop curricula and field test them in a local elementary school. Surveying students at the end of the semester suggests that using Earth Systems Science themes on the local environment as the framework for teaching science content and pedagogy not only improves the students content skills but also their perceptions of science as a subject, and their desire to teach science.

  19. Elevated pretransplant pulmonary vascular resistance index does not predict mortality after isolated orthotopic heart transplantation in children: A retrospective analysis of the UNOS database.

    PubMed

    Chiu, Peter; Schaffer, Justin M; Sheikh, Ahmad Y; Ha, Richard; Reinhartz, Olaf; Mainwaring, Richard; Reitz, Bruce A

    2015-09-01

    OHT is the definitive therapy in end-stage heart failure. Elevated PVRI is considered a relative contraindication to isolated OHT; this assumption is re-evaluated using data from the UNOS database. A retrospective review of de-identified data from the UNOS dataset was performed. There were 1943 pediatric OHT recipients between 10/87 and 12/11 with sufficient data for analysis. Cox regression was performed to examine the effect of baseline characteristics on post-transplant survival. Patients were propensity matched, and Kaplan-Meier survival analysis was performed comparing cohorts of patients using thresholds of 6 and 9 WU × m(2) . PVRI was not a significant predictor of post-transplant outcomes in either univariate or multivariate Cox regression. Kaplan-Meier analysis revealed no difference in survival between both unmatched and propensity-matched OHT recipients. In conclusion, elevated PVRI was not associated with post-transplant mortality in pediatric OHT recipients. A prospective study assessing the current use of PVRI ≥6 as a threshold to contraindicate isolated OHT should be undertaken. Removing this potentially unnecessary restriction on transplant candidacy may make this life-saving therapy available to a greater number of patients.

  20. Differential Diagnosis of Malaria on Truelab Uno®, a Portable, Real-Time, MicroPCR Device for Point-Of-Care Applications

    PubMed Central

    Nair, Chandrasekhar Bhaskaran; Manjula, Jagannath; Subramani, Pradeep Annamalai; Nagendrappa, Prakash B.; Manoj, Mulakkapurath Narayanan; Malpani, Sukriti; Pullela, Phani Kumar; Subbarao, Pillarisetti Venkata; Ramamoorthy, Siva; Ghosh, Susanta K.

    2016-01-01

    Background Sensitive and specific detection of malarial parasites is crucial in controlling the significant malaria burden in the developing world. Also important is being able to identify life threatening Plasmodium falciparum malaria quickly and accurately to reduce malaria related mortality. Existing methods such as microscopy and rapid diagnostic tests (RDTs) have major shortcomings. Here, we describe a new real-time PCR-based diagnostic test device at point-of-care service for resource-limited settings. Methods Truenat® Malaria, a chip-based microPCR test, was developed by bigtec Labs, Bangalore, India, for differential identification of Plasmodium falciparum and Plasmodium vivax parasites. The Truenat Malaria tests runs on bigtec’s Truelab Uno® microPCR device, a handheld, battery operated, and easy-to-use real-time microPCR device. The performance of Truenat® Malaria was evaluated versus the WHO nested PCR protocol. The Truenat® Malaria was further evaluated in a triple-blinded study design using a sample panel of 281 specimens created from the clinical samples characterized by expert microscopy and a rapid diagnostic test kit by the National Institute of Malaria Research (NIMR). A comparative evaluation was done on the Truelab Uno® and a commercial real-time PCR system. Results The limit of detection of the Truenat Malaria assay was found to be <5 parasites/μl for both P. falciparum and P. vivax. The Truenat® Malaria test was found to have sensitivity and specificity of 100% each, compared to the WHO nested PCR protocol based on the evaluation of 100 samples. The sensitivity using expert microscopy as the reference standard was determined to be around 99.3% (95% CI: 95.5–99.9) at the species level. Mixed infections were identified more accurately by Truenat Malaria (32 samples identified as mixed) versus expert microscopy and RDTs which detected 4 and 5 mixed samples, respectively. Conclusion The Truenat® Malaria microPCR test is a valuable

  1. Basic atmospheric measurements via Arduino Uno microcontroller with commercially available sensors towards simple real-time weather forecasting for increased classroom engagement

    NASA Astrophysics Data System (ADS)

    Eckel, Ryan; Tanner, Meghan; Senevirathne, Indrajith

    Makers, engineers and the applied physics community have adapted Arduino microcontrollers due to their versatility, robustness and cost effectiveness. Arduino microcontroller environment coupled with commercially available sensors have been used to systematically measure, record and analyze temperature, humidity and barometric pressure for building a simplified weather station for subsequent educational purposes. This data will become available in classroom settings for real-time analysis towards simple weather forecasting. Setup was assembled via breadboard, wire and simple soldering with an Arduino Uno ATmega328P microcontroller connected to a PC. The microcontroller was programmed with Arduino Software while the bootloader was used to upload the code. Commercial DHT22 humidity and temperature sensor, and BMP180 barometric pressure sensor were used to obtain relative humidity, temperature and the barometric pressure. A weather resistant enclosure protected the system while stable real-time data measurements were obtained, and uploaded onto the PC. The data was used to predict atmospheric conditions and lifting condensation level (LCL). Discussion will focus on capabilities and limitations of these systems and corresponding teaching aspects. Lock Haven University Nanotechnology Program.

  2. Infrastructure, logistics and regulation of transplantation: UNOS.

    PubMed

    Heimbach, Julie K

    2013-12-01

    Organ transplantation has evolved into the standard of care for patients with end-stage organ failure. Despite considering increasingly complex transplant recipients for organs recovered from donors with increasing comorbid conditions, 1-year patient survival following kidney transplantation is 97% in the United States, whereas liver transplant recipient 1-year survival is 90%. There were 16,485 kidney recipients in the United States in 2012, and 6256 patients who underwent liver transplantation. The intent of this review is to highlight the logistics required for transplantation as well as reviewing the current oversight of transplantation.

  3. E uno plurus: psychoanalytic psychotherapy in the age of pluralism.

    PubMed

    Frosch, James Peter

    2007-01-01

    Until 1970 the dominant theoretical framework in American psychoanalysis was Freudian ego psychology. Since then a number of additional theories, such as object relations theory (including, but not restricted to, the Kleinian approach), self psychology, relational psychoanalysis, and attachment theory have evolved and compete with contemporary ego psychology in the current marketplace of psychoanalytic ideas. There is considerable controversy about whether it is advantageous to work from one theoretical model and apply it to all clinical situations, or whether to utilize all the available paradigms, making judgments about which model or combination of them is most useful in a particular clinical situation or at a particular clinical moment. The latter approach might be termed pluralistic. Though a pluralistic approach is not without its philosophic and practical difficulties, such a perspective is helpful in understanding the complexity of human behavior and in facilitating therapeutic growth. A pluralistic approach is familiar to contemporary psychotherapists, who must utilize multiple frameworks in constructing biopsychosocial formulations of their patients. A pluralistic perspective is advantageous in promoting a therapeutic alliance, since it lends itself to a collaborative therapeutic process with patients. A brief clinical vignette is presented to illustrate these ideas.

  4. The UNO Aviation Monograph Series: The Airline Quality Rating 1997

    NASA Technical Reports Server (NTRS)

    Bowen, Brent D.; Headley, Dean E.

    1997-01-01

    The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline performance on combined multiple factors important to consumers. Development history and calculation details for the AQR rating system are detailed in The Airline Quality Rating 1991 issued in April, 1991, by the National Institute for Aviation Research at Wichita State University. This current report, Airline Rating 1997, contains monthly Airline Quality Rating scores for 1996. Additional copies are available by contacting Wichita State University or the University of Nebraska at Omaha. The Airline Quality Rating (AQR) 1997 is a summary of a month-by-month quality ratings for the nine major domestic U.S. airlines operating during 1996. Using the Airline Quality Rating system and monthly performance data for each airline for the calendar year of 1996, individual and comparative ratings are reported. This research monograph contains a brief summary of the AQR methodology, detailed data and charts that track comparative quality for major domestic airlines across the 12 month period of 1996, and industry average results. Also comparative Airline Quality Rating data for 1991 through 1995 are included to provide a longer term view of quality in the industry.

  5. The UNO Aviation Monograph Series: The Airline Quality Rating 1998

    NASA Technical Reports Server (NTRS)

    Bowen, Brent D.; Headley, Dean E.

    1998-01-01

    The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline performance on combined multiple factors important to consumers. Development history and calculation details for the AQR rating system are detailed in The Airline Quality Rating 1991 issued in April, 1991, by the National Institute for Aviation Research at Wichita State University. This current report, Airline Quality Rating 1998, contains monthly Airline Quality Rating scores for 1997. Additional copies are available by contacting Wichita State University or University of Nebraska at Omaha. The Airline Quality Rating 1998 is a summary of month-by-month quality ratings for the ten major U.S. airlines operating during 1997. Using the Airline Quality Rating system and monthly performance data for each airline for the calendar year of 1997, individual and comparative ratings are reported. This research monograph contains a brief summary of the AQR methodology, detailed data and charts that track comparative quality for major airlines domestic operations for the 12 month period of 1997, and industry average results. Also, comparative Airline Quality Rating data for 1991 through 1996 are included to provide a longer term view of quality in the industry.

  6. The UNOS Renal Transplant Registry: Review of the Last Decade.

    PubMed

    Andre, Mark; Huang, Edmund; Everly, Matthew; Bunnapradist, Suphamai

    2014-01-01

    Kidney transplantation has become a preferred treatment for end-stage renal disease (ESRD) as transplant recipients enjoy freedom from dialysis and improvement in both quality and quantity of life. More patients are being placed on the transplant waiting list, although the waiting list patients still only represent a very small fraction of ESRD patients. The characteristics of both waitlisted and transplanted patients have changed considerably in the last decade, as the ESRD population has aged and waiting list times have increased. Over the last 10 years, we have witnessed an increasingly severe shortage of kidney donors. Even with increasing efforts of the transplant community to expand the donor pool by including larger numbers of high risk deceased donor transplants, the overall number of kidney transplants has remained relatively stable. Those who do receive transplants, however, benefit from excellent transplant outcomes. The use of paired exchange/chain transplant donors has increased the living donor pool significantly and with outstanding results. Belatacept, a costimulation blockage drug, represents a new class of transplant immunosuppression. It has been used sparingly in the first few years of its approval. Most kidney transplant patients are still maintained on immunosuppressive agents that were approved almost two decades ago. In the next decade, we will certainly continue to deal with an organ shortage as the number of eligible and waitlisted patients is likely to increase. Effective and efficient organ allocation policies will be increasingly necessary to address this scarcity. Optimizing the transplant candidate work-up, improving maintenance of waitlisted patients, and providing optimal post-transplant medical care will be vital to the continued success of kidney transplantation.

  7. The Aeronautics Education, Research, and Industry Alliance (AERIAL) 2002 Report. UNO Aviation Monograph Series. UNOAI Report.

    ERIC Educational Resources Information Center

    Bowen, Brent D.; Box, Richard C.; Fink, Mary M.; Gogos, George; Lehrer, Henry R.; Narayanan, Ram M.; Nickerson, Jocelyn S.; O'Neil, Patrick D.; Tarry, Scott E.; Vlasek, Karisa D.

    This document contains four papers on aeronautics education, research, and partnerships that partly supported through the Aeronautics Education, Research, and Industry Alliance (AERIAL). The paper "2002 AERIAL Monograph" (Brent D. Bowen, Jocelyn S. Nickerson, Mary M. Fink, et al.) presents an overview of research and development in the…

  8. Metrologia: uno sguardo alle grandezze fisiche fondamentali; il Pendolo, il Piano Inclinato e g

    NASA Astrophysics Data System (ADS)

    Sigismondi, Costantino

    2016-07-01

    Metrology studies the standards utilized in physics, we focus on MKS introduced by Giovanni Giorgi at the turn of XIX-XX century. Galileo, the pendulum and the inclined plane are reviewed to obtain the universal g.

  9. Strategie di rifuto in Italiano: uno studio etnografico (Refusal Strategies in Italian: An Ethnographic Study).

    ERIC Educational Resources Information Center

    Frescura, Marina

    1997-01-01

    After reviewing previous research on speech acts, this article describes a study that analyzed the behavior of speakers of standard Italian in refusing an offer of food. The importance of "face" is explained, and the refusal strategies are classified into four categories: explicit, tactical, decisive, and conclusive. (CFM)

  10. Considerations for screening live kidney donors for endemic infections: a viewpoint on the UNOS policy.

    PubMed

    Levi, M E; Kumar, D; Green, M; Ison, M G; Kaul, D; Michaels, M G; Morris, M I; Schwartz, B S; Echenique, I A; Blumberg, E A

    2014-05-01

    In February 2013, the Organ Procurement and Transplantation Network mandated that transplant centers perform screening of living kidney donors prior to transplantation for Strongyloides, Trypanosoma cruzi and West Nile virus (WNV) infection if the donor is from an endemic area. However, specific guidelines for screening were not provided, such as the optimal testing modalities, timing of screening prior to donation and the appropriate selection of donors. In this regard, the American Society of Transplantation Infectious Diseases Community of Practice, together with disease-specific experts, has developed this viewpoint document to provide guidance for the testing of live donors for Strongyloides, T. cruzi and WNV infection, specifically identifying at-risk populations and testing algorithms, including advantages, limitations and interpretation of results.

  11. Combined Lung-Kidney Transplantation: An Analysis of the UNOS/OPTN Database.

    PubMed

    Reich, Heidi J; Chan, Joshua L; Czer, Lawrence S C; Mirocha, James; Annamalai, Alagappan A; Cheng, Wen; Jordan, Stanley C; Chaux, George; Ramzy, Danny

    2015-10-01

    Poor outcomes after thoracic transplantation with concurrent renal dysfunction are well described: without transplantation or with thoracic-only transplantation, patients face unacceptably high mortality. Outcomes after combined lung-kidney transplantation (LKT) remain largely uninvestigated. The United Network for Organ Sharing/Organ Procurement and Transplantation Network database was queried to identify all LKTs, lung transplantations (LTs), and kidney transplantations (KTs) performed in the United States from 1995 to 2013. Survival was calculated using the Kaplan-Meier method and compared using log-rank tests or Cox regression models. Thirty-one LKTs were performed. Mean recipient age was 45.4 ± 13.5 years; 48.3 per cent were male. Retransplantation for graft failure was the leading indication for LT (n = 13) and the most common renal indication was calcineurin inhibitor nephrotoxicity (n = 11). Mean lung allocation score was 46.6 ± 14.4, mean creatinine was 3.7 ± 2.8 g/dL, and glomerular filtration rate was 23.1 (interquartile range 11.9, 38.3) mL/min/1.7 m(2), and 11 (35.5%) were dialysis dependent. Patient survival after LKT was 92.9 per cent, 71.0 per cent, and 71.0 per cent at one month, six months, and one year, with a median survival of 95.2 months. One- and five-year survival after LKT, 71.0 per cent and 59.9 per cent, were similar to LT (n = 23,913), 81.7 per cent and 51.4 per cent (P = 0.061 and 0.55), and inferior to KT (n = 175,269), 94.9 per cent and 82.8 per cent (P < 0.0001), respectively. Patient survival after LKT was similar to isolated LT, and these results suggest that LKT is a feasible therapeutic option for LT candidates with significant renal dysfunction.

  12. Collegiate Aviation Research and Education Solutions to Critical Safety Issues. UNO Aviation Monograph Series. UNOAI Report.

    ERIC Educational Resources Information Center

    Bowen, Brent, Ed.

    This document contains four papers concerning collegiate aviation research and education solutions to critical safety issues. "Panel Proposal Titled Collegiate Aviation Research and Education Solutions to Critical Safety Issues for the Tim Forte Collegiate Aviation Safety Symposium" (Brent Bowen) presents proposals for panels on the…

  13. The UNO Aviation Monograph Series: Aviation Security: An Annotated Bibliography of Responses to the Gore Commission

    NASA Technical Reports Server (NTRS)

    Carrico, John S.; Schaaf, Michaela M.

    1998-01-01

    This monograph is a companion to UNOAI Monograph 96-2, "The Image of Airport Security: An Annotated Bibliography," compiled in June 1996. The White House Commission on Aviation Safety and Security, headed by Vice President Al Gore, was formed as a result of the TWA Flight 800 crash in August 1996. The Commission's final report included 31 recommendations addressed toward aviation security. The recommendations were cause for security issues to be revisited in the media and by the aviation industry. These developments necessitated the need for an updated bibliography to review the resulting literature. Many of the articles were written in response to the recommendations made by the Gore Commission. "Aviation Security: An Annotated Bibliography of Responses to the Gore Commission" is the result of this need.

  14. Induction Therapy for Lung Transplantation in COPD: Analysis of the UNOS Registry.

    PubMed

    Duffy, Joseph S; Tumin, Dmitry; Pope-Harman, Amy; Whitson, Bryan A; Higgins, Robert S D; Hayes, Don

    2016-10-01

    Although studies demonstrate that induction therapy improves outcomes after lung transplantation, its influence on survival in patients with chronic obstructive pulmonary disease (COPD) is not clear. The United Network for Organ Sharing database was queried to obtain data regarding adult patients with COPD receiving lung transplant between May 2005 and June 2014. Therapies evaluated include anti-thymocyte globulin, anti-lymphocyte globulin, thymoglobulin, basiliximab, and alemtuzumab. Data were categorized based on receiving induction (INDUCED) and no induction (NONE). Kaplan-Meier plots, Cox proportional hazards models of patient survival, and competing-risks regression models for secondary endpoints were utilized. A total of 3,405 patients who underwent lung transplantation for COPD were enrolled with 1,761 (52%) receiving induction therapy. Of INDUCED, 1,146 (65%) received basiliximab, 380 (22%) received alemtuzumab, and 235 (13%) received a polyclonal preparation. The hazard ratio for INDUCED vs. NONE was 0.793 (95% CI = 0.693, 0.909; p = 0.001) in the fully adjusted Cox model. A multivariable competing-risks model also found a protective influence of induction therapy with respect to delayed onset of bronchiolitis obliterans syndrome after transplantation (SHR = 0.801; 95% CI = 0.694, 0.925; p = 0.003). In a cohort of recently transplanted patients with COPD, there appears to be a benefit from contemporary induction agents with no concurrent increase in the risk of death due to infection.

  15. Linea abierta -- Comunicacion en espanol. Nivel Uno (Open Line -- Communication in Spanish. Level One).

    ERIC Educational Resources Information Center

    Dissemination and Assessment Center for Bilingual Education, Austin, TX.

    This text is the first of a series of four units concerning language skills for Spanish speakers of limited English-speaking ability in grades 6-9. The text includes a variety of learning experiences designed to develop competence in the student's cognitive and affective skills derived from the following basic areas: listening, speaking, reading,…

  16. Ex Uno Plures: Clonal Reinforcement Drives Evolution of a Simple Microbial Community

    PubMed Central

    Kinnersley, Margie; Wenger, Jared; Kroll, Evgueny; Adams, Julian; Sherlock, Gavin; Rosenzweig, Frank

    2014-01-01

    A major goal of genetics is to define the relationship between phenotype and genotype, while a major goal of ecology is to identify the rules that govern community assembly. Achieving these goals by analyzing natural systems can be difficult, as selective pressures create dynamic fitness landscapes that vary in both space and time. Laboratory experimental evolution offers the benefit of controlling variables that shape fitness landscapes, helping to achieve both goals. We previously showed that a clonal population of E. coli experimentally evolved under continuous glucose limitation gives rise to a genetically diverse community consisting of one clone, CV103, that best scavenges but incompletely utilizes the limiting resource, and others, CV101 and CV116, that consume its overflow metabolites. Because this community can be disassembled and reassembled, and involves cooperative interactions that are stable over time, its genetic diversity is sustained by clonal reinforcement rather than by clonal interference. To understand the genetic factors that produce this outcome, and to illuminate the community's underlying physiology, we sequenced the genomes of ancestral and evolved clones. We identified ancestral mutations in intermediary metabolism that may have predisposed the evolution of metabolic interdependence. Phylogenetic reconstruction indicates that the lineages that gave rise to this community diverged early, as CV103 shares only one Single Nucleotide Polymorphism with the other evolved clones. Underlying CV103's phenotype we identified a set of mutations that likely enhance glucose scavenging and maintain redox balance, but may do so at the expense of carbon excreted in overflow metabolites. Because these overflow metabolites serve as growth substrates that are differentially accessible to the other community members, and because the scavenging lineage shares only one SNP with these other clones, we conclude that this lineage likely served as an “engine” generating diversity by creating new metabolic niches, but not the occupants themselves. PMID:24968217

  17. Operational aspects of CASA UNO '88-The first large scale international GPS geodetic network

    NASA Technical Reports Server (NTRS)

    Neilan, Ruth E.; Dixon, T. H.; Meehan, Thomas K.; Melbourne, William G.; Scheid, John A.; Kellogg, J. N.; Stowell, J. L.

    1989-01-01

    For three weeks, from January 18 to February 5, 1988, scientists and engineers from 13 countries and 30 international agencies and institutions cooperated in the most extensive GPS (Global Positioning System) field campaign, and the largest geodynamics experiment, in the world to date. This collaborative eperiment concentrated GPS receivers in Central and South America. The predicted rates of motions are on the order of 5-10 cm/yr. Global coverage of GPS observations spanned 220 deg of longitude and 125 deg of latitude using a total of 43 GPS receivers. The experiment was the first civilian effort at implementing an extended international GPS satellite tracking network. Covariance analyses incorporating the extended tracking network predicted significant improvement in precise orbit determination, allowing accurate long-baseline geodesy in the science areas.

  18. 2° simposio europeo dei planetari, Parigi 6 - 8 maggio 1988.

    NASA Astrophysics Data System (ADS)

    Gambato, G.; Talamoni, L.

    The second European symposium on planetariums has been held in Paris, between May 6th and 8th, 1988. The paper reports the different experiences presented at the meeting about the planetariums management.

  19. La salud en personas con discapacidad intelectual en España: estudio europeo POMONA-II

    PubMed Central

    Martínez-Leal, Rafael; Salvador-Carulla, Luis; Gutiérrez-Colosía, Mencía Ruiz; Nadal, Margarida; Novell-Alsina, Ramón; Martorell, Almudena; González-Gordón, Rodrigo G.; Mérida-Gutiérrez, M. Reyes; Ángel, Silvia; Milagrosa-Tejonero, Luisa; Rodríguez, Alicia; García-Gutiérrez, Juan C.; Pérez-Vicente, Amado; García-Ibáñez, José; Aguilera-Inés, Francisco

    2011-01-01

    Introducción Estudios internacionales demuestran que existe un patrón diferenciado de salud y una disparidad en la atención sanitaria entre personas con discapacidad intelectual (DI) y población general. Objetivo Obtener datos sobre el estado de salud de las personas con DI y compararlos con datos de población general. Pacientes y métodos Se utilizó el conjunto de indicadores de salud P15 en una muestra de 111 sujetos con DI. Los datos de salud encontrados se compararon según el tipo de residencia de los sujetos y se utilizó la Encuesta Nacional de Salud 2006 para comparar estos datos con los de la población general. Resultados La muestra con DI presentó 25 veces más casos de epilepsia y el doble de obesidad. Un 20% presentó dolor bucal, y existió una alta presencia de problemas sensoriales, de movilidad y psicosis. Sin embargo, encontramos una baja presencia de patologías como la diabetes, la hipertensión, la osteoartritis y la osteoporosis. También presentaron una menor participación en programas de prevención y promoción de la salud, un mayor número de ingresos hospitalarios y un uso menor de los servicios de urgencia. Conclusiones El patrón de salud de las personas con DI difiere del de la población general, y éstas realizan un uso distinto de los servicios sanitarios. Es importante el desarrollo de programas de promoción de salud y de formación profesional específicamente diseñados para la atención de personas con DI, así como la implementación de encuestas de salud que incluyan datos sobre esta población. PMID:21948011

  20. Factors affecting graft survival within 1-year post-transplantation in heart and lung transplant: an analysis of the OPTN/UNOS registry.

    PubMed

    Ohe, Hidenori

    2012-01-01

    Today, a main focus of the transplant community is the long-term outcomes of lung and heart allograft recipients. However, even early post-transplant survival (within the first post-transplant year) needs improvement, as early graft failure still accounts for many allograft losses. In this chapter, we review the experience of heart and lung transplantation as reported to the Organ Procurement Transplant Network/United Network of Organ Sharing registry and investigate the factors responsible for causing failure in the first post-transplant year. Trends indicate that sicker patients are increasingly being transplanted, thereby limiting improvements in early post-transplant survival. More lung and heart transplant patients are coming to transplant on dialysis. In heart transplant, there is an increase in the number of heart retransplant patients and an increase in patients on extracorporeal membrane oxygenation. For lung transplant, more patients are on a ventilator prior to transplant than in the past 25 years. Given that sicker/riskier patients are now receiving more heart and lung transplants, future studies need to take place to better understand these patients so that they can have the same survival as patients entering transplant with less severe illnesses.

  1. Aerospace Workforce Development: The Nebraska Proposal; and Native View Connections: A Multi-Consortium Workforce Development Proposal. UNO Aviation Monograph Series

    NASA Technical Reports Server (NTRS)

    Bowen, Brent D.; Russell, Valerie; Vlasek, Karisa; Avery, Shelly; Calamaio, Larry; Carstenson, Larry; Farritor, Shane; deSilva, Shan; Dugan, James; Farr, Lynne

    2003-01-01

    The NASA Nebraska Space Grant Consortium (NSGC) continues to recognize the necessity of increasing the quantity and quality of highly skilled graduates and faculty involved with NASA. Through NASA Workforce Development funds awarded in 2002, NSGC spearheaded customer- focused workforce training and higher education, industry and community partnerships that are significantly impacting the state s workforce in the science, technology, engineering, and mathematics (STEM) competencies. NSGC proposes to build upon these accomplishments to meet the steadily increasing demand for STEM skills and to safeguard minority representation in these disciplines. A wide range of workforce development activities target NASA s need to establish stronger connections among higher education, industry, and community organizations. Participation in the National Student Satellite Program (NSSP), Community Internship Program, and Nebraska Science and Technology Recruitment Fair will extend the pipeline of employees benefiting NASA as well as Nebraska. The diversity component of this proposal catapults from the exceptional reputation NSGC has built by delivering geospatial science experiences to Nebraska s Native Americans. For 6 years, NSGC has fostered and sustained partnerships with the 2 tribal colleges and 4 reservation school districts in Nebraska to foster aeronautics education and outreach. This program, the Nebraska Native American Outreach Program (NNAOP), has grown to incorporate more than educational institutions and is now a partnership among tribal community leaders, academia, tribal schools, and industry. The content focus has broadened from aeronautics in the school systems to aerospace technology and earth science applications in tribal community decision-making and workforce training on the reservations. To date, participants include faculty and staff at 4 Nebraska tribal schools, 2 tribal colleges, approximately 1,000 Native American youth, and over 1,200 community members. This Native American Initiative of the NSGC addresses Nebraska workforce development and serves as a model to others. Following a structured evaluation process, NSGC proposes to sustain delivery of the training funded by NASA in 2002 to tribal entities through partnerships linking academic programs and industry leaders.

  2. Yo Ciudadano: Un Curriculo de Experiencias para Educacion Civica. Nivel: Uno (Citizen Me: An Experiential Curriculum for Citizenship Education. Level: One).

    ERIC Educational Resources Information Center

    Loftin, Richard

    Integrating concepts of basic citizenship education with community involvement, this experiential curriculum, written in Spanish, provides a means for developing decision making and critical thinking skills within the existing social studies curriculum in grade 1. Using short stories, field trips, and class discussions, the 11 lessons on…

  3. [Lo stile di attaccamento insicuro è un fattore di rischio di ridotta densità minerale ossea in donne in menopausa. Uno studio pilota].

    PubMed

    Niolu, Cinzia; Bianciardi, Emanuela; Di Lorenzo, Giorgio; Nicolai, Sara; Celi, Monica; Ribolsi, Michele; Pietropolli, Adalgisa; Ticconi, Carlo; Tarantino, Umberto; Siracusano, Alberto

    2016-01-01

    RIASSUNTO. Introduzione. La depressione maggiore (MD) e l'osteoporosi sono malattie ad alta prevalenza nel genere femminile, associate a morbosità e mortalità. Sebbene alcuni studi abbiano dimostrato un'associazione tra MD, ridotta densità minerale ossea (BMD) e osteoporosi, non sono stati chiariti i meccanismi causali. Lo stile di attaccamento insicuro è stato messo in relazione con la patogenesi e il decorso di malattie croniche come la MD e le malattie cardiovascolari. Obiettivo di questo studio pilota è esplorare la relazione tra MD e BMD. Si ipotizza che lo stile di attaccamento possa agire da mediatore. Metodi. Il campione è formato da 101 donne in menopausa, 49 con MD e 52 controlli sani. La diagnosi di MD è stata formulata con l'intervista clinica e la Beck Depression Inventory. Lo stile di attaccamento è stato esplorato usando il Relationship Questionnaire, la BMD con la Mineralometria Ossea Computerizzata con tecnica DXA (Dual energy X-ray Absorptiometry). Risultati. L'analisi univariata ha mostrato che le donne con MD avevano valori di BMD inferiori rispetto ai controlli sani. Nelle analisi di regressione multipla la MD non è emersa come predittore significativo di ridotta BMD. Lo stile di attaccamento insicuro "preoccupato" è risultato un predittore significativo di ridotta BMD in tutti i siti scheletrici misurati con la DXA: colonna vertebrale lombare (p=0,008) e segmenti femorali: "femoral neck" (p=0,011), "total hip" (p=0,002). Conclusioni. Questo è il primo studio che esplora il possibile ruolo di MD e stile di attaccamento sulla BMD. Lo stile di attaccamento è risultato un predittore di ridotta BMD, indipendentemente dalla MD. L'attaccamento insicuro potrebbe avere un ruolo nella patogenesi dell'osteoporosi anche indipendente dalla MD. Se questi risultati saranno confermati, gli interventi terapeutici focalizzati sullo stile di attaccamento potrebbero contribuire al miglioramento della comorbilità psichiatrica e medica legata all'osteoporosi.

  4. Estudio de los Esquemas Conceptuales y de los Perfiles de Unos Alumnos de Segundo de Bup en Relacion con el Concepto de Pendiente de Una Recta.

    ERIC Educational Resources Information Center

    Gimenez, Carmen Azcarate

    1992-01-01

    Presents a study to determine students' concept of slope carried out in three classes of the second form before introducing the notion of derivative. Discusses the meaning of conceptual framework and reviews literature on slope. Analyzes student responses to a questionnaire for mathematical content and expression and interprets the results. (MDH)

  5. Let's Help Each Other. Economic Organization Booklet 3. Teacher's Edition=Ayudemonos uno al otro. Organizacion economica libro 3. Manual para El Maestro.

    ERIC Educational Resources Information Center

    California State Univ., Los Angeles. National Dissemination and Assessment Center.

    The booklet is part of a grade 10-12 social studies series produced for bilingual education. The series consists of six major thematic modules, with four to five booklets in each. The interdisciplinary modules are based on major ideas and designed to help students understand some major human problems and make sound, responsive decisions to improve…

  6. [Bere problematico e problemi di salute in Toscana e in Friuli Venezia Giulia: uno studio epidemiologico attraverso i medici di medicina generale].

    PubMed

    Allamani, Allaman; Bravi, Stefano; Pepe, Pasquale; Voller, Fabio; Marcatto, Francesco; Ferrante, Donatella; Manthey, Jakob; Rehm, Jürgen; Struzzo, Pierluigi

    2017-01-01

    "OBJECTIVES: to identify the differences among patients of general practictioners (GPs) in both Tuscany Region (Central Italy) and Friuli Venezia Giulia (FVG) Region (Northern Italy), which are different for drinking cultures, as to motivation of consultation, hazardous drinking and alcohol dependence, health problems, and use of health services.

  7. Recent Changes in UC Admissions Policies. Parent/Student Guide = Unos cambios recientes en los reglamentos de ingreso de la universidad de California. Guia de padres/estudiantes.

    ERIC Educational Resources Information Center

    EdSource, Inc., Palo Alto, CA.

    This parent/student guide describes recent changes in admissions policies at the University of California (UC). Traditionally, UC admitted the top 12.5% of high school graduating seniors, but beginning in 2001, the top 4% of students in the graduating class of every high school are eligible if they have completed 11 specific "a-f"…

  8. Pancreas Transplantation of US and Non-US Cases from 2005 to 2014 as Reported to the United Network for Organ Sharing (UNOS) and the International Pancreas Transplant Registry (IPTR).

    PubMed

    Gruessner, Angelika C; Gruessner, Rainer W G

    2016-01-01

    This report is an update of pancreas and kidney transplant activities in the US and non-US region in two periods, 2005-2009 and 2010-2014. The aim of the report was to analyze transplant progress and success in the US compared to non-US countries, and to compare trends between the two periods. Between 2005-2009 and 2010-2014, the number of US pancreas transplants declined by over 20%, while the overall number of pancreas transplants performed outside the US has increased. The decline in US numbers is predominantly due to the decline in primary and secondary pancreas after kidney transplants (PAK). During the time period studied, the number of PAK transplants dropped by 50%. In contrast, the number of simultaneous pancreas/kidney transplants (SPK) declined by only 10%, and the number of pancreas transplants alone (PTA) by 20%. Over 90% of pancreas transplants worldwide were performed, with a simultaneous kidney transplant and excellent results. Transplant outcomes in SPK improved significantly because of a decrease in the rates of technical and immunologic graft loss. In 2010-2014 vs. 2005-2009, US SPK transplant patient survival at 1 year post-transplant increased from 95.7% to 97.4%, pancreas graft function from 88.3% to 91.3%, and kidney function from 93.6% to 95.5%. A significant improvement was also noted in PAK transplants. One-year patient survival increased from 96.4% to 97.9% and pancreas graft function from 81.0% to 86.0%. PTA 1-year patient survival remained constant at 97%, and pancreas 1-year graft survival improved from 81.0% to 85.7%. With the decline in the number of transplants, a change towards better pancreas donor selection was observed. In solitary transplants, the donors were primarily young trauma victims, and the pancreas preservation time was relatively short. A general tendency towards transplanting older recipients was noted. In 2010-2014 vs. 2005-2009, PTA recipients 50 years of age or older accounted for 32% vs. 22%, PAK for 28% vs. 22%, and SPK for 22% vs. 20%. This may be due to a relatively lower immunologic graft loss rate, especially in solitary transplants, which historically has been high in young recipients. The number of pancreas transplants in patients with type 2 diabetes and end-stage renal disease has increased, and accounted for 9% of all SPK recipients in 2010-2014.

  9. Coping with Social Change: Programs That Work. Proceedings of a Conference (Acapulco, Mexico, June 1989) = Como enfrentarse al cambio social: programas eficaces. Actas de uno Conferencia (Acapulco, Mexico, Junio de 1989).

    ERIC Educational Resources Information Center

    Hoskins, Irene, Ed.

    Written in English and Spanish, this document contains the proceedings of the 14th International Congress of Gerontology on concerns about the impact of rapid social change on the well-being of older women and families in Latin American and the Caribbean and about effective programs that address the needs of the older populations. The first…

  10. Analysis of United States (US) and non-US pancreas transplants reported to the United network for organ sharing (UNOS) and the international pancreas transplant registry (IPTR) as of October 2001.

    PubMed

    Gruessner, A C; Sutherland, D E

    2001-01-01

    As of October 10, 2001, > 17,000 pancreas transplant had been reported to the IPTR, > 11,500 in the US and > 4,700 outside the US. An era analysis of US cases from 1987 to 2001 showed a progressive improvement in outcome (p < 0.04), with pancreas transplant graft survival rates (GSRs) going from 75% to 83% at one year for SPK cases, from 50% to 78% for PAK cases, and from 49% to 78% for PTA cases. The improvements were due both to decreases in technical failure (TF) rates (from 14% to 7% in SPK, 23% to 8% in PAK, and 23% to 10% in PTA) and immunological failure rates (going from 7% to 2% for SPK, from 25% to 2% for PAK, and from 28% to 4% for PTA cases). The proportion of recipients > 45 years old increased from 5% to 25%, and the improved outcomes encompassed the older patients as well. In patients > 45 years old, SPK pancreas GSRs at one year increased from 74% to 80% (p < 0.007). Pancreas GSRs were also similar for recipients reported to have Type 1 or Type 2 diabetes (at one year, 84% and 83%, respectively for 1997-2001 SPK transplants), the latter designated in 5% of the recipients. Contemporary pancreas transplant outcomes were calculated separately for 1997-2001 US and non-US cases. US patient survival rates at one year were > or = 95% in each recipient category, with one year pancreas GSRs of 83% for SPK (n = 3885), 79% for PAK (n = 630), and 78% for PTA (n = 240) (p = 0.0002). The immunological graft failure rates for 1997-2001 US SPK, PAK and PTA cases were 4%, 6%, and 8% at one year (p = 0.0001). There was a progressive increase in the use of ED (as opposed to BD) for duct management, to 67% for 1997-2001 US SPK transplants, 51% for PAK and 42% for PTA. Of US SPK ED transplants, 22% had venous drainage via the portal system. US pancreas GSRs were not significantly different for 1997-2001 ED (n = 2,519) and BD (n = 1,260) US SPK transplants (82% and 85%, respectively, at one year), nor was there a difference in pancreas GSRs for systemic (n = 1,958) versus portal (n = 557) venous-drained ED SPK transplants (82% vs. 84% at one year). Kidney GSRs were slightly higher for ED versus BD US SPK cases, 93% versus 91% at one year (p = 0.03). Duct management did matter for solitary (PAK and PTA) pancreas transplants. Pancreas GSRs for PAK recipients were 85% at one year for BD (n = 316) versus 74% for ED (n = 303) US transplants (p < 0.02); for PTA 81% (n = 168) versus 74% (p > or = 0.37). However, BD transplants were associated with a 12% conversion rate to ED by two years posttransplant. Recipient age made little difference for outcome in any category. Indeed, in the PTA category GSRs were significantly higher for US recipients > 45 years old (n = 66) than 21-45 years old (n = 216), 85% versus 77% at 1 year (p < or = 0.10). TAC + MMF was the dominant maintenance immunosuppressant for 1999-2001 US cases (> 70%). In an analysis of outcome according to type of anti-T-cell antibody agents (depleting vs. non-depleting vs. none) for induction therapy in TAC + MMF treated recipients, there were no differences in GSRs in any of the categories. In regard to non-US cases, the overwhelming majority were in the SPK category (n = 1,649 for 1997-2001), with a one year pancreas GSR of 82%, not significantly different than for US cases. In summary, pancreas transplant graft survival rates were nearly 80% at one year in recipients of solitary (PAK and PTA) pancreas transplants, and > 80% in SPK recipients for 1997-2001 cases. The outcome continues to improve as increasing numbers of solitary pancreas transplants are done.

  11. Studiar L'inglese dalle elementari--Problema europeo: Una proposta nuova della pedagogia cibernetica (Beginning the Study of English in the Elementary School Grades--A European Problem: A New Proposal from Cibernetic Education).

    ERIC Educational Resources Information Center

    Chiti-Batelli, Andrea

    1986-01-01

    Warns the European community of the dangers of accepting English as the international language and urges the adoption of Esperanto, a neutral language without its own cultural tradition, as the international lingua franca. (CFM)

  12. Bilinguismo e immigrazione: una nota sociolinguistica al piano europeo di mantenimento delle lingue nazionali nelle comunita di emigrati (Bilingualism and Immigration: A Sociolinguistic View of the European Plan for the Maintainance of National Languages in Immigrant Communities).

    ERIC Educational Resources Information Center

    Tosi, Arturo

    1979-01-01

    Outlines the European Economic Community's (EEC) plan for the maintainance of national languages among immigrants. Describes the variety of objectives behind the EEC's linguistic policy as incompatible with the creation of a unified instructional approach. Emphasizes that dialects spoken within immigrant families create additional problems in…

  13. Space Launch Vehicles: Government Activities, Commercial Competition, and Satellite Exports

    DTIC Science & Technology

    2006-03-20

    Relations Authorization Act (P.L. 101-246). At the time, attention was focused on two European companies ( Astrium and Alenia Spazio) that had built...contain U.S. components. In August 2001, INTELSAT canceled its contract with Astrium for the APR-3 satellite, citing several factors, including the delay

  14. La Segmentazione Grafica della Scrittura di una Storia Conosciuta. Uno Studio Descrittivo su 450 Testi di Bambini dai 6 agli 8 Anni (Graphic Segmentation of the Writing of a Familiar Story. A Descriptive Study of 450 Texts of Children from 6 to 8 Years Old).

    ERIC Educational Resources Information Center

    Pontecorvo, Clotilde; Di Eduardo, Roberta

    1995-01-01

    The purpose of this study was to analyze how children in the early grades of elementary school divide words while writing. The subjects were 450 Italian children belonging either to upper-middle-class or lower-middle-class families who were asked to write the familiar story of "Little Red Riding Hood." (CFM)

  15. Field-Aligned Structure of the Storm Time Pc 5 Wave of November 14-15, 1979,

    DTIC Science & Technology

    1988-02-01

    Corporation El Segundo, CA 90245 and E. AMATA Instituto di Fisica dello Spazio Interplanetario Rome, Italy I February 1988 Prepared for SPACE DIVISION AIR...UNCLASSIFIED SECURITY CLASSIFICATION OF THIS PAGE 12. PERSONAL AUTHOR(S) (Continued) The Aerospace Corporation; and Amata, E., Instituto di Fisica dello...between a drift-mirror wave and a shear Alfven wave, as discussed by Walker and coworkers. ’ .,1 :.x UNCLASSIFIED I 18CURIITY CLAS SIFICATION OF TIS

  16. Consumption of functional foods in Europe; a systematic review.

    PubMed

    Özen, Asli E; Bibiloni, María del Mar; Pons, Antoni; Tur, Josep A

    2014-03-01

    Objetivo: Evaluar las diferencias en el consumo de alimentos funcionales entre los países europeos. Diseño: Revisión sistemática. La búsqueda bibliográfica se realizó en Medlars Online International Literature (MEDLINE), vía PubMed©, y Scopus. Se identificaron veintidós estudios que examinaron las diferencias en el consumo de alimentos funcionales entre los europeos. Resultados: Existen diferencias en la proporción de consumidores de alimentos funcionales entre los países europeos. Así, mientras los alimentos funcionales son muy populares en la mayoría de los países europeos como Finlandia, Suecia, Países Bajos, Polonia, España y Chipre, en algunos países como Dinamarca, Italia y Bélgica no lo son tanto. Un elevado porcentaje de adolescentes europeos mediterráneos (España y Chipre, pero no Italia) consume alimentos funcionales. La evaluación del consumo de alimentos funcionales en función del género es difícil, pues los resultados varían de estudio a estudio. Conclusiones: En los últimos años se ha extendido el consumo de alimentos funcionales en Europa, pero dicho consumo muestra grandes diferencias entre los europeos. Más investigaciones serán necesarias para averiguar las razones subyacentes tras estas diferencias y entender las necesidades de los consumidores de alimentos funcionales.

  17. High-Excitation OH and H2O Lines in Markarian 231: The Molecular Signatures of Compact Far-Infrared Continuum Sources

    DTIC Science & Technology

    2008-03-01

    Spinoglio Istituto di Fisica dello Spazio Interplanetario, CNR via Fosso del Cavaliere 100, I-00133 Roma, Italy; luigi.spinoglio@ifsi-roma.inaf.it and...arises from a warm (Tdust ¼ 70 100 K), optically thick (100m ¼ 1 2 ) medium of effective diameter 200–400 pc. In our best-fit model of total...component suggests that its infrared emission is dominated by the AGN. The derived column densities N (OH)k 1017 cm 2 and N (H2O)k 6 ; 1016 cm 2 may

  18. A Qualitative Assessment of Students' Experiences of Studying Music: A Spanish Perspective on the European Credit Transfer System (ECTS)

    ERIC Educational Resources Information Center

    Faubel, Jose Maria Esteve; Valero, Miguel Angel Molina; Stephens, Jonathan

    2009-01-01

    The purpose of this investigation is to evaluate whether or not the allocation of time proposed in the Music Study Guide, adapted from the Espacio Europeo de Educacion Superior (European Higher Education Area) guidelines, is consistent and adequate for students with a minimal musical knowledge. The data for this study arise from a…

  19. Case Study of Risk Mitigation Based on Hardware/Software Integration (HSI) Testing for the International Space Station (ISS) Node 2 Module

    NASA Technical Reports Server (NTRS)

    Holt, James Mike; Clanton, Stephen Edward

    2004-01-01

    Within the pressurized elements of the International Space Station (ISS), requirements exist to ensure a safe, habitable environment for the crew. In order to provide this environment, thermal control components work in conjunction with software controls to provide heat rejection for subsystem avionics equipment, for the environmental control system and for experiment payloads. It is essential to ISS operations, mission success and crew safety that necessary testing incorporates the extreme conditions to ensure proper performance. This paper provides a general description and methodology applied to thermal related Hardware/Software Integration (HSI) tests for the ISS Node 2 module. A detailed test plan was developed and implemented with two objectives: the first was for risk mitigation of the thermal control algorithms and software qualification, and the second was for data collection which will substantiate thermalhydraulic models of the Internal Active Thermal Control System (IATCS). Analytical models are utilized to determine on-orbit performance for conditions and scenarios where the simulation of actual on-orbit system performance is limited by test configuration constraints. Node 2 IATCS HSI activities were performed at the Alenia Spazio facility in Torino, Italy with participation from the National Aeronautics and Space Administration (NASA), Alenia Spazio, Jacobs Engineering Sverdrup (JE Sverdrup) and Boeing.

  20. Pneumatically Modulated Liquid Delivery System for Nebulizers

    DTIC Science & Technology

    2011-12-02

    VII. Acknowledgements 18 APPENDIX A: Complete Parts List 19 APPENDIX B: Source code for the Arduino Uno microcontroller (CD) 23 1 I...implemented. The Arduino Uno is a well-established hobbyist microcontroller, focused on ease-of-use and teaching non-computer programmers about embedded...circuits. The Arduino Uno uses an Atmega328 microcontroller with thirteen digital TTL control lines, six 10-bit resolution 0-5 V analog inputs, TTL

  1. KSC-05PD-0735

    NASA Technical Reports Server (NTRS)

    2005-01-01

    KENNEDY SPACE CENTER, FLA. In the Space Station Processing Facility, workers prepare to move one of the hatches from the Node-2 module to a shipping container. The hatches are being removed in preparation for shipment to the Marshall Space Flight Center, Ala., for re-balance certification. The Node-2 will launch on mission 10A, STS-120, to the International Space Station (ISS) currently scheduled for Fall 2006. The installation of the Node-2 on the ISS will signify the completion of the U.S. stage of assembly and increase the living and working space inside the Station to approximately 18,000 cubic feet. Under contract to the Italian Space Agency (ASI), Alenia Spazio in Turin, Italy, led a consortium of European subcontractors to build Node-2. The module was built for NASA under an agreement with the European Space Agency (ESA) in exchange for launch of the European Columbus Laboratory.

  2. KSC-05PD-0736

    NASA Technical Reports Server (NTRS)

    2005-01-01

    KENNEDY SPACE CENTER, FLA. In the Space Station Processing Facility, workers guide one of the hatches from the Node-2 module onto a shipping container. The hatches are being removed in preparation for shipment to the Marshall Space Flight Center, Ala., for re-balance certification. The Node-2 will launch on mission 10A, STS-120, to the International Space Station (ISS) currently scheduled for Fall 2006. The installation of the Node-2 on the ISS will signify the completion of the U.S. stage of assembly and increase the living and working space inside the Station to approximately 18,000 cubic feet. Under contract to the Italian Space Agency (ASI), Alenia Spazio in Turin, Italy, led a consortium of European subcontractors to build Node-2. The module was built for NASA under an agreement with the European Space Agency (ESA) in exchange for launch of the European Columbus Laboratory.

  3. KSC-05PD-0737

    NASA Technical Reports Server (NTRS)

    2005-01-01

    KENNEDY SPACE CENTER, FLA. In the Space Station Processing Facility, workers finish packing one of the hatches from the Node-2 module inside a shipping container. The hatches are being removed in preparation for shipment to the Marshall Space Flight Center, Ala., for re-balance certification. The Node-2 will launch on mission 10A, STS-120, to the International Space Station (ISS) currently scheduled for Fall 2006. The installation of the Node-2 on the ISS will signify the completion of the U.S. stage of assembly and increase the living and working space inside the Station to approximately 18,000 cubic feet. Under contract to the Italian Space Agency (ASI), Alenia Spazio in Turin, Italy, led a consortium of European subcontractors to build Node-2. The module was built for NASA under an agreement with the European Space Agency (ESA) in exchange for launch of the European Columbus Laboratory.

  4. Lunar astrobiology: a review and suggested laboratory equipment.

    PubMed

    Gronstal, Aaron; Cockell, Charles S; Perino, Maria Antonietta; Bittner, Tobias; Clacey, Erik; Clark, Olathe; Ingold, Olivier; Alves de Oliveira, Catarina; Wathiong, Steven

    2007-10-01

    In October of 2005, the European Space Agency (ESA) and Alcatel Alenia Spazio released a "call to academia for innovative concepts and technologies for lunar exploration." In recent years, interest in lunar exploration has increased in numerous space programs around the globe, and the purpose of our study, in response to the ESA call, was to draw on the expertise of researchers and university students to examine science questions and technologies that could support human astrobiology activity on the Moon. In this mini review, we discuss astrobiology science questions of importance for a human presence on the surface of the Moon and we provide a summary of key instrumentation requirements to support a lunar astrobiology laboratory.

  5. The TOPSAR interferometric radar topographic mapping instrument

    NASA Astrophysics Data System (ADS)

    Zebker, Howard A.

    1991-08-01

    We have augmented the NASA DC-8 Airborne Synthetic Aperture Radar (AIRSAR) instrument with a pair of C-band antennas displaced across the track to form an interferometer sensitive to topographic variations of the Earth's surface. The antennas were developed by Alenia Spazio under the sponsorship of the Italian Space Agency (ASI), and the AIRSAR instrument and modifications to it supporting TOPSAR were sponsored by NASA. A new data processor was developed at JPL for producing the topographic maps. As of May 1991, one engineering flight line over San Francisco, CA was reduced to a cartographically rectified topographic map. Analysis of the results indicates that statistical errors are in the range of 2 to 4 m, while systematic effects due to aircraft motion are in the range of 6 to 12 m. Future aircraft motion compensation algorithms should reduce the systematic variations to near zero, while the statistical errors could likely be reduced to 2 m or less with some processor improvements.

  6. VII Workshop Italiano sulla fisica pp a LHC

    NASA Astrophysics Data System (ADS)

    LHCpp2016 è la settima edizione dell'incontro nazionale sulla fisica p-p a LHC. Questa serie di incontri è nata a Pisa nel 2003 con lo scopo di stimolare lo scambio di idee tra le comunità sperimentali di ATLAS, CMS e LHCB e la comunità teorica. Caratteristica fondamentale di questi incontri è la preparazione di larga parte dei talk in collaborazione tra i vari esperimenti e la comunità teorica. Largo spazio nella preparazione e presentazione dei talk viene dato ai giovani ricercatori. In questa settima edizione, che si tiene di nuovo a Pisa, vogliamo concentrare l'attenzione sulle potenzialità di scoperta offerte dai dati raccolti durante il runII di LHC.

  7. The Campaigns for the Pacification of the Spanish Protectorate in Morocco: a Forgotten Example of Successful Counterinsurgency

    DTIC Science & Technology

    2011-05-19

    Madrid, Spain: Biblioteca Nueva, 2001). 7 pacified.20 Mimoun Aziza also studied the later period of the protectorate but explored the social and... Biblioteca Nueva, 1923), 29. The tribe of Quebdana supported the Spanish presence as soon as 1909 and remained friendly even during the Annual...Frente al Imperialismo Europeo y los Politicos Españoles (1921-1923). Madrid, Spain: Biblioteca Nueva, 2001. ———“Civil-Military Relations in the

  8. Mini pressurized logistics module (MPLM)

    NASA Astrophysics Data System (ADS)

    Vallerani, E.; Brondolo, D.; Basile, L.

    1996-06-01

    The MPLM Program was initiated through a Memorandum of Understanding (MOU) between the United States' National Aeronautics and Space Administration (NASA) and Italy's ASI, the Italian Space Agency, that was signed on 6 December 1991. The MPLM is a pressurized logistics module that will be used to transport supplies and materials (up to 20,000 lb), including user experiments, between Earth and International Space Station Alpha (ISSA) using the Shuttle, to support active and passive storage, and to provide a habitable environment for two people when docked to the Station. The Italian Space Agency has selected Alenia Spazio to develop MPLM modules that have always been considered a key element for the new International Space Station taking benefit from its design flexibility and consequent possible cost saving based on the maximum utilization of the Shuttle launch capability for any mission. In the frame of the very recent agreement between the U.S. and Russia for cooperation in space, that foresees the utilization of MIR 1 hardware, the Italian MPLM will remain an important element of the logistics system, being the only pressurized module designed for re-entry. Within the new scenario of anticipated Shuttle flights to MIR 1 during Space Station phase 1, MPLM remains a candidate for one or more missions to provide MIR 1 resupply capabilities and advanced ISSA hardware/procedures verification. Based on the concept of Flexible Carriers, Alenia Spazio is providing NASA with three MPLM flight units that can be configured according to the requirements of the Human-Tended Capability (HTC) and Permanent Human Capability (PHC) of the Space Station. Configurability will allow transportation of passive cargo only, or a combination of passive and cold cargo accommodated in R/F racks. Having developed and qualified the baseline configuration with respect to the worst enveloping condition, each unit could be easily configured to the passive or active version depending upon the

  9. New Testing Standard For European Programs

    NASA Astrophysics Data System (ADS)

    Giordano, P.

    2004-08-01

    Standardization is a key aspect of the production business committed to the optimization of the product development and cost. In the Space field, American industries and Government organizations have developed since several decades Space standards like the MIL series, deriving them from the aircraft and military fields, or the NASA standards. The same happened later in other countries like Russia, Japan and China. In the last years most of those standards were revised to cope with the emerging needs of the market. In Europe, the Space activities were generally managed by a set of ESA standards, the PSS, which covered some aspects of these activities and reflected the up-to-date approaches and common practices. But, in the last years an initiative was also promoted by ESA, National Agencies and Space Organizations, named ECSS (European Cooperation for Space Standardization), with the aim to develop a coherent, single set of user-friendly standards for use in all European space activities. European industries supported this initiative, including a deep involvement of Alenia Spazio and, sometime through a suitable revision of the old PSS documents, new standards were defined, as for the "Testing" (ECSS-E-10-03A, now published). The ECSS-E-10-03A provides standard environmental and performance test requirements for space products (systems and their constituents) which are generally applicable to all projects. Scope of this paper is to present the status of the worldwide initiatives in the testing standardization, the major contents of the European ECSS Testing standard and the possibilities for tailoring. Differences in requirement definition with other international testing standards and proposals for further ECSS optimization are presented on the basis of Alenia Spazio experience in supporting the above initiatives.

  10. Massing the Third Dimension in AirLand Battle-Future: The Aviation Division

    DTIC Science & Technology

    1990-12-01

    and industry . His ideas, already taking shape in tne 10z~s. gave rise to airmechanization tneory which was later further articuiacec by von Senger uno...A comotnea arms torce consisting mainly or MBAVs as the major kLiilng system, wouja be, in von Senger uno Etteriin s view, a tacticaliy and logistica

  11. Volunteer Program Assessment at the University of Nebraska at Omaha: A Metropolitan University's Collaboration with Rural and Spanish-Speaking Volunteers

    ERIC Educational Resources Information Center

    Scherer, Lisa L.; Graeve-Cunningham, Victoria M.; Trent, Sheridan B.; Weddington, Stephanie A.; Thurley, Adam R.; Prange, Kelly A.; Allen, Joseph A.

    2016-01-01

    The Volunteer Program Assessment at UNO (VPA-UNO), a faculty-led student group, partners with nonprofit and governmental agencies to provide free assessments and consultations to enhance volunteer engagement, organizational commitment and retention. Three recent initiatives are discussed representing an intentional effort of a metropolitan…

  12. [DEMOCOPHES SPAIN AND ITS CONTRIBUTION TO THE HARMONIZATION OF EUROPEAN HUMAN BIOMONITORING].

    PubMed

    Esteban López, Marta; López Martín, Estrella; Rodríguez García, Carolina; Posada De la Paz, Manuel; Castaño Calvo, Argelia

    2015-07-01

    Objetivo: contribuir a la armonización europea de la biovigilancia en humanos (proyecto DEMOCOPHES) demostrando la utilidad de los estudios de biovigilancia para valorar la influencia de la dieta y los estilos de vida como vía de exposición a contaminantes ambientales. Métodos: se adaptó el protocolo europeo a las necesidades nacionales, siguiendo los controles de calidad definidos en él y sin comprometer la obtención de datos comparables entre los países participantes. Resultados: la adaptación nacional del protocolo europeo no presentó grandes dificultades y, salvo mínimas modificaciones, se respetó el diseño original del estudio. Participaron 134 parejas madre-hijo, seleccionados en un colegio de Añover de Tajo (Toledo) y tres colegios de Madrid. Los voluntarios donaron una muestra de pelo y de orina y contestaron a las preguntas del cuestionario epidemiológico. Se observaron diferencias significativas en la participación de los voluntarios en las dos localizaciones de muestreo. Discusión: la estandarización de todas las etapas de un estudio de biovigilancia en humanos es esencial para su desarrollo armonizado a escala internacional. Los resultados obtenidos han contribuido a la obtención de datos sobre exposición ambiental, por primera vez comparables en 17 países europeos, y han permitido observar diferencias relacionadas con la dieta y los hábitos de vida. Las experiencias y el material de trabajo desarrollado para el estudio piloto serán aplicables al diseño e implementación de futuros estudios de HBM.

  13. United Network for Organ Sharing

    MedlinePlus

    ... 24, 2016, the OPTN/UNOS Liver and Intestinal Organ Transplantation Committee reviewed substantial feedback from the donation and ... pm View More… View all events Learn how organ transplantation works See the impact transplantation makes Give now ...

  14. Organ Transplants: What Every Kid Needs to Know

    MedlinePlus

    ... For more information about UNOS, living donation, and organ transplantation, please call 1-888-894-6361 or visit ... their families feel more at ease with the organ transplantation process by providing general information in an understandable ...

  15. U.S. Transplantation Data

    MedlinePlus

    ... lives. Sign up to be an organ donor. Technology for transplantation UNOS developed the online database system, ... more Learn how organ transplantation works See the impact transplantation makes Give now Contact 700 N. 4th ...

  16. Organ Transplantation

    MedlinePlus

    ... UNOS), a national network based in Richmond, Va., bears this responsibility. At present, its driving considerations are ... unqualified veto power? These questions also bring to bear the fact that in nearly all countries with ...

  17. Heartrending Choices.

    ERIC Educational Resources Information Center

    Dunn, Patricia C.; Marple, Jennifer; Knight, Sharon M.

    2000-01-01

    Explains the responsibilities of the United Network for Organ Sharing (UNOS) and its decision making process as to who receives an organ for transplant. Presents an activity exploring ethics, human values, and human anatomy. (YDS)

  18. 77 FR 54947 - Unblocking of Specially Designated Nationals and Blocked Persons Pursuant to the Foreign...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-06

    ... individual previously designated pursuant to the Kingpin Act: 1. FLORES CACHO, Javier, c/o LA NUMERO UNO DE... follows: 1. FLORES CACHO, Javier, Avenida del Taller No. 23, Ret. 17, Colonia Jardin Balbuena,...

  19. 75 FR 64782 - Additional Designations, Foreign Narcotics Kingpin Designation Act

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-20

    ...-2 (Colombia); (ENTITY) . Individuals 1. FLORES CACHO, Alejandro (a.k.a. CACHO FLORES, Alejandro; a.k.... MACE590807HDFSMD05 (Mexico); (INDIVIDUAL) . 13. FLORES CACHO, Javier, c/o LA NUMERO UNO DE CUAUHTEMOC S.A. DE...

  20. Heart Failure Society of America

    MedlinePlus

    ... hfsa.org Events Calendar>> Copyright © 2017 Heart Failure Society of America. All Rights Reserved 2017 Call for ... for Organ Sharing (UNOS) asks the Heart Failure Society of America (HFSA) members to comment on the ...

  1. Ukrainian network of Optical Stations for man-made space objects observation

    NASA Astrophysics Data System (ADS)

    Sybiryakova, Yevgeniya

    2016-07-01

    The Ukrainian Network of Optical Stations (UNOS) for man-made objects research was founded in 2012 as an association of professional astronomers. The main goals of network are: positional and photometric observations of man-made space objects, calculation of orbital elements, research of shape and period of rotation. The network consists of 8 stations: Kiev, Nikolaev, Odesa, Uzhgorod, Lviv, Yevpatoriya, Alchevsk. UNOS has 12 telescopes for observation of man-made space objects. The new original methods of positional observation were developed for optical observation of geosynchronous and low earth orbit satellites. The observational campaigns of LEO satellites held in the network every year. The numerical model of space object motion, developed in UNOS, is using for orbit calculation. The results of orbital elements calculation are represented on the UNOS web-site http://umos.mao.kiev.ua/eng/. The photometric observation of selected objects is also carried out in network.

  2. ARTEMIS orbit raising inflight experience with ion propulsion

    NASA Astrophysics Data System (ADS)

    Killinger, Rainer; Kukies, Ralf; Surauer, Michael; Tomasetto, Angeo; van Holtz, Leo

    2003-08-01

    To demonstrate and promote North/South station keeping (inclination control) using ion propulsion, ESA on July 12, 2001 onboard Ariane 510 launched its most advanced telecommunication satellite: ARTEMIS. Due to a launcher failure the satellite was injected into a useless too low elliptic orbit. The ARTEMIS mission was salvaged by an Alenia Spazio / Astrium / ESA team at Telespazio (Fucino) using in novel modes to operate the on-board chemical and ion propulsion systems provided by Astrium. Using the chemical propulsion_ system provided by Astrium GmbH - Lampoldshausen - the inital orbit, having an apogee of half the targeted altitude. was quickly upgraded to a safe circular parking orbit at 31000 km altitude. The Liquid Apogee Engine was fired in total 8 times to achieve apogee as well as perigee raising. The final orbit raising to geostationary altitude is being performed by means of the ion propulsion system (IPP) applied in a newly designed spacecraft attitude control mode. Alenia Spazio and Astrium, in close cooperation, quickly redesigned all control and data handling software modules affected since the original spacecraft configuration was designed for inclination control only and not to generate thrust with the ion engines in a direction tangential to the orbit. The flexibility of the IPP system consisting of 4 thruster assemblies, provided in its totality by Astrium including the 2 alignment mechanisms for precision thrust direction control, had proven invaluable. To demonstrate the technologies available in Europe and to enhanced reliability, Astrium implemented two different technologies: a Kaufmann type system (EITA) provided by Astrium Ltd. - Portsmouth; and a Radiofrequency Ion Thruster Assembly (RITA) provided by Astrium GmbH - Ottobrunn. Two ion engines of different technology were mounted side by side on one ITAM (Ion Thruster Alignment Mechanism) provided by Austrian Aerospace. Artemis, after EURECA launched on 31 July 1992 and retrieved on 1 July

  3. G. Marconi: A Data Relay Satellite for Mars Communications

    NASA Astrophysics Data System (ADS)

    Dionisio, C.; Marcozzi, M.; Landriani, C.

    2002-01-01

    Ascent Vehicle launch and Orbiting Sample Canister detection for the Mars Sample Return mission. The GMO mission is a close collaboration between the Italian and American national space agencies and two implementing organizations: Alenia Spazio in Italy and JPL in the United States. As the Italian prime contractor, Alenia Spazio is to design and fabricate the spacecraft bus, integrate the Italian and JPL payloads, support integration of the spacecraft with the launch vehicle, support launch, and conduct mission operations. GMO will use Alenia' s PRIMA spacecraft bus in a deep space configuration. The PRIMA bus is a new design concept, developed under ASI funding, that combines flexibility, low cost and high efficiency. Its modular design makes it adaptable for several classes of missions, including interplanetary.

  4. Complete Genome Sequences of Pseudomonas fluorescens Bacteriophages Isolated from Freshwater Samples in Omaha, Nebraska

    PubMed Central

    Lu, Guoqing; Luhr, Jamie; Stoecklein, Andrew; Warner, Paige

    2017-01-01

    ABSTRACT The complete genome sequences of four Pseudomonas fluorescens bacteriophages, UNO-SLW1 to UNO-SLW4, isolated from freshwater samples, are 39,092 to 39,215 bp long. The genomes are highly similar (identity, >0.995) but dissimilar from that of Pseudomonas phage Pf-10 (the closest relative, 0.685 to 0.686 identity), with 48 to 49 protein-coding genes and 66 regulatory sites predicted. PMID:28336602

  5. Impacts of the MERCOSUR Agreement on the Uruguayan Economy

    DTIC Science & Technology

    1994-06-01

    Polit’cas Comercial e CambiaI ,oohre Padrao de Comercio Inlernacional dos Paises da ALADI: o Caso do Brasil , mimeo, LNICAMP 1qt2."., I Mesquita Machado...Carlos, Comercio con Argentina y Brasil : Uno o Dos Patrones de Insercion Regional? Sextas Jornadas Anuales de Economia, Banco Central del Uruguay...34 Quintas Jornadas Anuales de Economia, BCU, 1990. Berreta, Nora and Paolino, Carlos, " Comercio con Argentina y Brasil : uno o dos patrones de inserci6n

  6. Anatomical and molecular consequences of Unilateral Naris Closure on two populations of olfactory sensory neurons expressing defined odorant receptors.

    PubMed

    Molinas, Adrien; Aoudé, Imad; Soubeyre, Vanessa; Tazir, Bassim; Cadiou, Hervé; Grosmaitre, Xavier

    2016-07-28

    Mammalian olfactory sensory neurons (OSNs), the primary elements of the olfactory system, are located in the olfactory epithelium lining the nasal cavity. Exposed to the environment, their lifespan is short. Consequently, OSNs are regularly regenerated and several reports show that activity strongly modulates their development and regeneration: the peripheral olfactory system can adjust to the amount of stimulus through compensatory mechanisms. Unilateral naris occlusion (UNO) was frequently used to investigate this mechanism at the entire epithelium level. However, there is little data regarding the effects of UNO at the cellular level, especially on individual neuronal populations expressing a defined odorant receptor. Here, using UNO during the first three postnatal weeks, we analyzed the anatomical and molecular consequences of sensory deprivation in OSNs populations expressing the MOR23 and M71 receptors. The density of MOR23-expressing neurons is decreased in the closed side while UNO does not affect the density of M71-expressing neurons. Using Real Time qPCR on isolated neurons, we observed that UNO modulates the transcript levels for transduction pathway proteins (odorant receptors, CNGA2, PDE1c). The transcripts modulated by UNO will differ between populations depending on the receptor expressed. These results suggest that sensory deprivation will have different effects on different OSNs' populations. As a consequence, early experience will shape the functional properties of OSNs differently depending on the type of odorant receptor they express.

  7. Development Activities on an Advanced Propellant Flow Control Unit

    NASA Astrophysics Data System (ADS)

    Noci, G.; Siciliano, P.; Fallerini, L.; Kutufa, N.; Rivetti, A.; Galassi, C.; Bruschi, P.; Piotto, M.

    2004-10-01

    A new generation of propellant control equipment for electric propulsion systems is needed in order to improve performance and operating ranges, symplify h/w configuration, reduce mass and dimensions, eliminate mass flow ripple, reduce time response. In this frame, the development of key components, their assembly and experimental investigation/ validation is on-going at Alenia Spazio-Laben/Business Unit Proel Tecnologie ( Proel in the following ) in the frame of an ESA GSTP program. The new components shall support different EP technologies, future EP multi-tasking capability and wide operating ranges. This paper reports about the development effort, its achievements and perspectives. 1. ABBREVIATIONS AND ACRONYMS BOL Beginning of Life CMBR Ceramic multilayer bender ring CTA Constant Temperature Anemometry. DUT Device under test EOL End of Life EP Electric Propulsion GEO Geosyncrhonous Earth Orbit GFCU Gas Flow Control Unit GIT Gridded ion thruster HET Hall Effect Thrusters LEO Low Earth Orbit LPC Low pressure capillary MEOP Maximum Expected Operating Pressure MFS Mass Flow rate Sensor NSSK North-South Station Keeping Pred Reduced pressure Ptank Tank pressure RMT Radiofrequency Magnetic Thruster RMTA Radiofrequency Magnetic Thruster Assembly ROOV Regulation and On-Off Valve SoW Statement of Work SPT Stationary Plasma Thruster.

  8. Italian spring accelerometer (ISA) a high sensitive accelerometer for ``BepiColombo'' ESA CORNERSTONE

    NASA Astrophysics Data System (ADS)

    Iafolla, V.; Nozzoli, S.

    2001-12-01

    The targets of the ESA CORNERSTONE mission to Mercury "BepiColombo" are concerned with both planetary and magnetospheric physics and to test some aspects of the general relativity. A payload devoted to a set of experiments named radio science is located within one of the three proposed modules, the Mercury Planetary Orbiter (MPO). In particular, a high sensitivity accelerometer ( a min<10 -9√g/ Hz in the range 10 -4- 10 -1 Hz) will measure the inertial acceleration acting on the MPO. Such data, together with tracking data are used to evaluate the purely gravitational trajectory of the MPO, transforming it to a virtual drag-free satellite system. The ISA accelerometer, considered for this mission, is a well-studied instrument developed at the Istituto di Fisica dello Spazio Interplanetario (IFSI), with the financial support of the Agenzia Spaziale Italiana (ASI). A prototype of such an instrument was constructed, matching the requirements of the radio science experiment. Results of the study concerning the use of ISA in the BepiColombo mission are reported here, particular care being devoted to the description of the instrument and to its sensitivity and thermal stabilisation.

  9. FSL: a fluid science laboratory for the International Space Station - the software Environment for the experiment execution

    NASA Astrophysics Data System (ADS)

    Pensavalle, Emanuele; Trinchero, Giorgio

    2002-07-01

    The FSL (Fluid Science Laboratory) is a flexible, highly modular facility for the COF (Columbus Orbital Facility) - the European module of the International Space Station (ISS) - to support scientific microgravity research in fluid physics. Housed in an International Standard Payload Rack (ISPR), FSL will allow triggering and observation of phenomena inside transparent fluid matrices and at the surface of opaque media. Some possible FSL experiment fields are: Fluid convection and heat transfer, Marangoni motion of inclusions (drops or bubbles) in fluid matrix, Liquid bridges in fluid or gas matrix, Experiments on boiling, Experiments on critical point, Melting and solidification front and interaction with inclusions, Coalescence, Multilayer systems, Colloids, emulsions and aerosols, Particle agglomeration, Plasma crystal physics. The FSL is developed under contract with the European Space Agency (ESA). Alenia Spazio S.p.A. Turin (I) is Prime Contractor for the project. This paper briefly addresses the FSL architecture, then focuses on the set of instrumentation, services and utilities provided to the user to conceive, develop and conduct experiments, focusing in particular on the on-board software environment.

  10. X-SAR: The X-band synthetic aperture radar on board the Space Shuttle

    NASA Technical Reports Server (NTRS)

    Werner, Marian U.

    1993-01-01

    The X-band synthetic aperture radar (X-SAR) is the German/Italian contribution to the NASA/JPL Shuttle Radar Lab missions as part of the preparation for the Earth Observation System (EOS) program. The Shuttle Radar Lab is a combination of several radars: an L-band (1.2 GHz) and a C-band (5.3 GHz) multipolarization SAR known as SIR-C (Shuttle Imaging Radar); and an X-band (9.6 GHz) vertically polarized SAR which will be operated synchronously over the same target areas to deliver calibrated multifrequency and multipolarization SAR data at multiple incidence angles from space. A joint German/Italian project office at DARA (German Space Agency) is responsible for the management of the X-SAR project. The space hardware has been developed and manufactured under industrial contract by Dornier and Alenia Spazio. Besides supporting all the technical and scientific tasks, DLR, in cooperation with ASI (Agencia Spaziale Italiano) is responsible for mission operation, calibration, and high precision SAR processing. In addition, DLR developed an airborne X-band SAR to support the experimenters with campaigns to prepare for the missions. The main advantage of adding a shorter wavelength (3 cm) radar to the SIR-C radars is the X-band radar's weaker penetration into vegetation and soil and its high sensitivity to surface roughness and associated phenomena. The performance of each of the three radars is comparable with respect to radiometric and geometric resolution.

  11. X-SAR: The X-band synthetic aperture radar on board the Space Shuttle

    NASA Astrophysics Data System (ADS)

    Werner, Marian U.

    1993-05-01

    The X-band synthetic aperture radar (X-SAR) is the German/Italian contribution to the NASA/JPL Shuttle Radar Lab missions as part of the preparation for the Earth Observation System (EOS) program. The Shuttle Radar Lab is a combination of several radars: an L-band (1.2 GHz) and a C-band (5.3 GHz) multipolarization SAR known as SIR-C (Shuttle Imaging Radar); and an X-band (9.6 GHz) vertically polarized SAR which will be operated synchronously over the same target areas to deliver calibrated multifrequency and multipolarization SAR data at multiple incidence angles from space. A joint German/Italian project office at DARA (German Space Agency) is responsible for the management of the X-SAR project. The space hardware has been developed and manufactured under industrial contract by Dornier and Alenia Spazio. Besides supporting all the technical and scientific tasks, DLR, in cooperation with ASI (Agencia Spaziale Italiano) is responsible for mission operation, calibration, and high precision SAR processing. In addition, DLR developed an airborne X-band SAR to support the experimenters with campaigns to prepare for the missions. The main advantage of adding a shorter wavelength (3 cm) radar to the SIR-C radars is the X-band radar's weaker penetration into vegetation and soil and its high sensitivity to surface roughness and associated phenomena. The performance of each of the three radars is comparable with respect to radiometric and geometric resolution.

  12. Evaluation of MPLM Design and Mission 6A Coupled Loads Analyses

    NASA Technical Reports Server (NTRS)

    Bookout, Paul S.; Ricks, Ed

    1999-01-01

    Through the development of a space shuttle payload, there are usually several coupled loads analyses (CLA) performed: preliminary design, critical design, final design and verification loads analysis (VLA). A final design CLA is the last analysis conducted prior to model delivery to the shuttle program for the VLA. The finite element models used in the final design CLA and the VLA are test verified dynamic math models. Mission 6A is the first of many flights of the Multi-Purpose Logistics Module (MPLM). The MPLM was developed by Alenia Spazio S.p.A. (an Italian aerospace company) and houses the International Standard Payload Racks (ISPR) for transportation to the space station in the shuttle. Marshall Space Flight Center (MSFC), the payload integrator of the MPLM for Mission 6A, performed the final design CLA using the M6.OZC shuttle data for liftoff and landing conditions using the proper shuttle cargo manifest. Alenia performed the preliminary and critical design CLAs for the development of the MPLM. However, these CLAs did not use the current Mission 6A cargo manifest. An evaluation of the preliminary and critical design performed by Alenia and the final design performed by MSFC is presented.

  13. An assessment model for quality management

    NASA Astrophysics Data System (ADS)

    Völcker, Chr.; Cass, A.; Dorling, A.; Zilioli, P.; Secchi, P.

    2002-07-01

    SYNSPACE together with InterSPICE and Alenia Spazio is developing an assessment method to determine the capability of an organisation in the area of quality management. The method, sponsored by the European Space Agency (ESA), is called S9kS (SPiCE- 9000 for SPACE). S9kS is based on ISO 9001:2000 with additions from the quality standards issued by the European Committee for Space Standardization (ECSS) and ISO 15504 - Process Assessments. The result is a reference model that supports the expansion of the generic process assessment framework provided by ISO 15504 to nonsoftware areas. In order to be compliant with ISO 15504, requirements from ISO 9001 and ECSS-Q-20 and Q-20-09 have been turned into process definitions in terms of Purpose and Outcomes, supported by a list of detailed indicators such as Practices, Work Products and Work Product Characteristics. In coordination with this project, the capability dimension of ISO 15504 has been revised to be consistent with ISO 9001. As contributions from ISO 9001 and the space quality assurance standards are separable, the stripped down version S9k offers organisations in all industries an assessment model based solely on ISO 9001, and is therefore interesting to all organisations, which intend to improve their quality management system based on ISO 9001.

  14. Design of A Lander For The Bepicolombo Mission

    NASA Astrophysics Data System (ADS)

    Pansart, O.; Anselmi, A.

    The BepiColombo ESA mission will deploy two orbiters (Mercury Planetary Orbiter and Mercury Magnetospheric Orbiter, the latter provided by ISAS, Japan) and the Mercury Surface Element (MSE), the first lander on the surface of Mercury. The main purpose of MSE is to investigate the physical and chemical properties of a spot on the Mercury surface. Alcatel Space Industries has been designing the MSE and its associated propulsion module in the frame of a Definition Study led by Alenia Spazio, under ESA contract. The MSE mission starts at separation from the orbital composite spacecraft. During the descent and landing phase, a high-thrust bipropellant engine decelerates the MSE, and an airbag system is deployed to ensure a safe landing after a short free-fall phase. The MSE then starts its scientific mission on the Mercury surface. The paper addresses the following topics: Mission overview - Descent and Landing phase - MSE surface mission phase - System preliminary design and performances. The presented MSE baseline was studied as part of the industrial Definition Study. The mission itself is currently going through a redefinition phase which affects the whole ESA Scientific Program, and which may lead to a revised version by the May-June 2002 time frame.

  15. ECLSS Design for the International Space Station Nodes 2 and 3

    NASA Technical Reports Server (NTRS)

    Carrasquillo, Robyn L.; Bertotto, Dario

    1999-01-01

    The International Space Station (ISS) modules Nodes 2 and 3 are currently under development by Alenia Spazio and the Marshall Space Flight Center (MSFC). The design of the Environmental Control and Life Support Systems (ECLSS) for these two modules have some similarities but many differences. The Node 2 ECLSS provides inter- and intramodule ventilation, temperature and humidity control, fire detection and suppression, and distribution of atmosphere samples, low pressure and recharge oxygen and nitrogen, fuel cell water and wastewater. Design Review 1 was held in March 1998. Fabrication of the ducting, tubing, and support structure is ongoing with Design Review 2 planned for December 1999. In addition to providing the same functions as Node 2, the ECLSS for Node 3 includes carbon dioxide removal, trace contaminant control, atmosphere monitoring, atmosphere pressure control, oxygen generation, urine and potable water processing, waste management, and potable water distribution to support the habitability functions relocated from the U.S. Hab module. Scarring for future incorporation of carbon dioxide reduction is also included. Design Review 1 is planned for July 1999. An overview of each Node's system design as well as issues and challenges are discussed.

  16. ISO Guest Observer Data Analysis and LWS Instrument Team Activities

    NASA Technical Reports Server (NTRS)

    Smith, Howard

    2001-01-01

    The following is an interim annual report. Dr. Smith is currently on an extended TDY to the Istituto di Fisica dello Spazio Interplanetario (IFSI) at the Consilio Nazionale delle Richerche (CNR) in Rome, Italy, where he has been working on a related NASA grant in support of analysis of Infrared Space Observatory (ISO) data on star formation in Ultra Luminous Infrared Galaxies and our galaxy. Work emphasizes development of metal mesh grids for use in spacecraft, and the design and fabrication of test elements by the Naval Research Laboratory, Washington D.C. Work has progressed well, but slowly, on that program due to the departure of a key engineer. NASA has been advised of the delay, and granted a no-cost extension, whereby SAO has authorized a delay in the final report from NRL. Nevertheless NRL has continued to make progress. Two papers have been submitted to refereed journals related to this program, and a new design for mesh operating in the 20-40 micron region has been developed. Meetings continue through the summer on these items. A new technical scientist has been made a job offer and hopefully will be on board NRL shortly, although most of the present grant work is already completed. A more complete report, with copies of the submitted papers, designs, and other measures of progress, will be submitted to NASA in September when Dr. Smith returns from his current TDY.

  17. ENVISAT-1 Microwave Radiometer (MWR): validation campaign achievements

    NASA Astrophysics Data System (ADS)

    Bombaci, Ornella; L'Abbate, Michele; Svara, Carlo; Caltagirone, Francesco; Guijarro, J.

    1998-12-01

    Alenia Aerospazio Remote Sensing Division started in 1986 the study of microwave radiometers under Italian Space Agency fundings, and since 1989 the definition and development of radiometric systems under European Space Agency (ESA) contracts. In particular the Multifrequency Imaging Microwave Radiometer (MIMR) and the ENVISAT Microwave Radiometer (MWR) were both developed by the European Industry, with Alenia Aerospazio as Prime Contractor. MWR is an instrument designed and developed as part of the Envisat-1 satellite scientific payload, with Alenia Spazio engaged in the phase C-D as instrument Prime Contractor, leading an industrial consortium of European and American companies. The Flight Model of the Instrument has been delivered to ESA at the end of July 1997, after completion of test and calibration activities. Given the MWR in-flight calibration concept, a specific pre-flight calibration and characterization activity was performed to define a radiometer mathematical model and a relevant ground characterization database including all model coefficients. The model and its database will be used by on-ground processing during instrument in-flight operation to retrieve the antenna-measured temperature. Standing its complexity and iterative measurement concept, the pre-flight characterization and calibration of the instrument is the key aspect of its development phase. Within this paper the key instrument design topics are summarized, and after a summary overview of the overall flight model qualification campaign, emphasis will be on the pre-flight calibration and characterization activities and radiometric performance achievements among several test phases.

  18. Italian aerospace company Alenia prepare TSS-1R in O&C

    NASA Technical Reports Server (NTRS)

    1995-01-01

    Employees of the Italian aerospace company Alenia Spazio S.p.A. prepare the Tethered Satellite System-1R (TSS-1R) that is one of two primary payloads scheduled to fly aboard the Orbiter Columbia during the STS-75 mission in early 1996 for a series of tests in the Operations and Checkout (O&C) Building. The TSS program is a joint venture between NASA and the Agenzia Spaziale Italiana, or Italian Space Agency. The 'R' designation indicates a reflight. The TSS-1 flew aboard Atlantis during the STS-46 mission in July 1992 and achieved only a partial success when its tether reel mechanism became jammed after only approximately 840 feet of the 12-mile-long tether had been unwound as the satellite rose from its cradle in the orbiter's payload bay. Once deployed to the 12- mile height on the STS-75 mission, the satellite will be used to validate theories that such a system could possibly be used in the future to generate electrical power to power orbital systems, raise and lower spacecraft, study atmospheric conditions at several different heights and for many other applications.

  19. Node 2 and Japanese Experimental Module (JEM) In Space Station Processing Facility

    NASA Technical Reports Server (NTRS)

    2003-01-01

    Lining the walls of the Space Station Processing Facility at the Kennedy Space Center (KSC) are the launch awaiting U.S. Node 2 (lower left). and the first pressurized module of the Japanese Experimental Module (JEM) (upper right), named 'Kibo' (Hope). Node 2, the 'utility hub' and second of three connectors between International Space Station (ISS) modules, was built in the Torino, Italy facility of Alenia Spazio, an International contractor based in Rome. Japan's major contribution to the station, the JEM, was built by the Space Development Agency of Japan (NASDA) at the Tsukuba Space Center near Tokyo and will expand research capabilities aboard the station. Both were part of an agreement between NASA and the European Space Agency (ESA). The Node 2 will be the next pressurized module installed on the Station. Once the Japanese and European laboratories are attached to it, the resulting roomier Station will expand from the equivalent space of a 3-bedroom house to a 5-bedroom house. The Marshall Space Center in Huntsville, Alabama manages the Node program for NASA.

  20. Adaptive Observations At Ncep: Past, Present, and Future

    NASA Astrophysics Data System (ADS)

    Toth, Z.; Szunyogh, I.; Bishop, C.; Majumdar, S.; Moskaitis, J.; Lord, S.

    The RadioScience experiments proposed for the BepiClombo ESA CORNERSTONE are aiming at performing planetary measurements such as: the rotation state of Mer- cury, the global structure of its gravity field and the local gravitational anomalies, but also to test some aspects of the General Relativity, to an unprecedented level of accu- racy. A high sensitivity accelerometer will measure the inertial acceleration acting on the MPO; these data, together with tracking data are used to evaluate the purely gravi- tational trajectory of the MPO, by transforming it to a virtual drag-free satellite system. At the Istituto di Fisica dello Spazio Interplanetario (IFSI) a high sensitive accelerom- eter named ISA (Italian Spring Accelerometer)* and considered for this mission has been studied. The main problems concerning the use of the accelerometer are related to the high dynamics necessary to follow the variation of the acceleration signals, with accuracy equal to 10^-9 g/sqr(Hz), and very high at the MPO orbital period and due to thermal noise introduced at the sidereal period of Mercury. The description of the accelerometer will be presented, with particular attention to the thermal problems and to the analysis regarding the choice of the mounting position on the MPO. *Project funded by the Italian Space Agency (ASI).

  1. Signals and Noises Acting On The Accelerometer Mounted In The Mpo (mercury Planetary Orbiter).

    NASA Astrophysics Data System (ADS)

    Iafolla, V.; Fiorenza, E.; Lucchesi, D.; Milyukov, V.; Nozzoli, S.

    The RadioScience experiments proposed for the BepiClombo ESA CORNERSTONE are aiming at performing planetary measurements such as: the rotation state of Mer- cury, the global structure of its gravity field and the local gravitational anomalies, but also to test some aspects of the General Relativity, to an unprecedented level of accu- racy. A high sensitivity accelerometer will measure the inertial acceleration acting on the MPO; these data, together with tracking data are used to evaluate the purely gravi- tational trajectory of the MPO, by transforming it to a virtual drag-free satellite system. At the Istituto di Fisica dello Spazio Interplanetario (IFSI) a high sensitive accelerom- eter named ISA (Italian Spring Accelerometer)* and considered for this mission has been studied. The main problems concerning the use of the accelerometer are related to the high dynamics necessary to follow the variation of the acceleration signals, with accuracy equal to 10^-9 g/sqr(Hz), and very high at the MPO orbital period and due to thermal noise introduced at the sidereal period of Mercury. The description of the accelerometer will be presented, with particular attention to the thermal problems and to the analysis regarding the choice of the mounting position on the MPO. *Project funded by the Italian Space Agency (ASI).

  2. Selection of active spaces for multiconfigurational wavefunctions

    SciTech Connect

    Keller, Sebastian; Boguslawski, Katharina; Reiher, Markus; Janowski, Tomasz; Pulay, Peter

    2015-06-28

    The efficient and accurate description of the electronic structure of strongly correlated systems is still a largely unsolved problem. The usual procedures start with a multiconfigurational (usually a Complete Active Space, CAS) wavefunction which accounts for static correlation and add dynamical correlation by perturbation theory, configuration interaction, or coupled cluster expansion. This procedure requires the correct selection of the active space. Intuitive methods are unreliable for complex systems. The inexpensive black-box unrestricted natural orbital (UNO) criterion postulates that the Unrestricted Hartree-Fock (UHF) charge natural orbitals with fractional occupancy (e.g., between 0.02 and 1.98) constitute the active space. UNOs generally approximate the CAS orbitals so well that the orbital optimization in CAS Self-Consistent Field (CASSCF) may be omitted, resulting in the inexpensive UNO-CAS method. A rigorous testing of the UNO criterion requires comparison with approximate full configuration interaction wavefunctions. This became feasible with the advent of Density Matrix Renormalization Group (DMRG) methods which can approximate highly correlated wavefunctions at affordable cost. We have compared active orbital occupancies in UNO-CAS and CASSCF calculations with DMRG in a number of strongly correlated molecules: compounds of electronegative atoms (F{sub 2}, ozone, and NO{sub 2}), polyenes, aromatic molecules (naphthalene, azulene, anthracene, and nitrobenzene), radicals (phenoxy and benzyl), diradicals (o-, m-, and p-benzyne), and transition metal compounds (nickel-acetylene and Cr{sub 2}). The UNO criterion works well in these cases. Other symmetry breaking solutions, with the possible exception of spatial symmetry, do not appear to be essential to generate the correct active space. In the case of multiple UHF solutions, the natural orbitals of the average UHF density should be used. The problems of the UNO criterion and their potential solutions

  3. Selection of active spaces for multiconfigurational wavefunctions

    NASA Astrophysics Data System (ADS)

    Keller, Sebastian; Boguslawski, Katharina; Janowski, Tomasz; Reiher, Markus; Pulay, Peter

    2015-06-01

    The efficient and accurate description of the electronic structure of strongly correlated systems is still a largely unsolved problem. The usual procedures start with a multiconfigurational (usually a Complete Active Space, CAS) wavefunction which accounts for static correlation and add dynamical correlation by perturbation theory, configuration interaction, or coupled cluster expansion. This procedure requires the correct selection of the active space. Intuitive methods are unreliable for complex systems. The inexpensive black-box unrestricted natural orbital (UNO) criterion postulates that the Unrestricted Hartree-Fock (UHF) charge natural orbitals with fractional occupancy (e.g., between 0.02 and 1.98) constitute the active space. UNOs generally approximate the CAS orbitals so well that the orbital optimization in CAS Self-Consistent Field (CASSCF) may be omitted, resulting in the inexpensive UNO-CAS method. A rigorous testing of the UNO criterion requires comparison with approximate full configuration interaction wavefunctions. This became feasible with the advent of Density Matrix Renormalization Group (DMRG) methods which can approximate highly correlated wavefunctions at affordable cost. We have compared active orbital occupancies in UNO-CAS and CASSCF calculations with DMRG in a number of strongly correlated molecules: compounds of electronegative atoms (F2, ozone, and NO2), polyenes, aromatic molecules (naphthalene, azulene, anthracene, and nitrobenzene), radicals (phenoxy and benzyl), diradicals (o-, m-, and p-benzyne), and transition metal compounds (nickel-acetylene and Cr2). The UNO criterion works well in these cases. Other symmetry breaking solutions, with the possible exception of spatial symmetry, do not appear to be essential to generate the correct active space. In the case of multiple UHF solutions, the natural orbitals of the average UHF density should be used. The problems of the UNO criterion and their potential solutions are discussed

  4. [Description of the follow-up protocol for idiopathic intracranial hypertension in the neuro-ophthalmological unit of a tertiary hospital].

    PubMed

    González-Hernández, Ayoze; Tandón-Cárdenes, Luis; Cabrera-Naranjo, Fernando; Guzmán-Fernández, María; Fabre-Pi, Óscar; López-Veloso, Carolina

    2013-05-16

    Objetivo. Revisar los resultados de la implantacion de un protocolo de seguimiento de pacientes con hipertension intracraneal idiopatica (HICI) en una unidad de neurooftalmologia (UNO). Pacientes y metodos. Se realizo una revision bibliografica para determinar las exploraciones necesarias que debian incluirse en el protocolo de seguimiento, asi como la frecuencia optima de las visitas y la duracion adecuada del seguimiento. Posteriormente, se revisaron de forma prospectiva los pacientes incluidos desde la creacion de la UNO y se compararon con los pacientes incluidos en el registro de HICI previo a la creacion de la UNO. Resultados. Desde la implantacion del protocolo, en el 100% de los pacientes se ha valorado la agudeza visual y la campimetria visual a los tres meses, a los seis meses y al ano del diagnostico. Ademas, en un 91%, 72,8% y 100% de los pacientes con HICI se realizo una campimetria visual a los tres meses, a los seis meses y al ano del diagnostico, respectivamente. Antes de la implantacion de nuestro protocolo de seguimiento, se habian realizado 190, lo que corresponde a unas tres por paciente. El numero de punciones lumbares realizadas desde la creacion de la UNO es de 11. Conclusiones. La creacion de una UNO multidisciplinar permite optimizar los recursos y mejorar la asistencia a los pacientes con HICI. Esto deberia redundar en una mejoria del pronostico funcional de estos pacientes.

  5. Variable Geometry and Multicycle Engines

    DTIC Science & Technology

    1977-03-01

    foible qu’un monoflux avec r~chauffe. Los syst~mas compos~s do plusiours motours ind~pendants du point do vue thermodynamique no m~ritent pas...portant sur les performances. I1 s’agit uniquement d𔄀tudes thdoriques et d𔄀tudes thermodynamiques dans les diff~rents cas de vol. E.A.Willis Do the...saisir lo changemont d’&tat thermodynamique ou bien de d~terminer un fitat gazodynamique d’un 6coulement constant, it suff it d’avoir uno notion d’uno

  6. Fotometría de grupos compactos de galaxias: Shakhbazian 37, 45, 166, 331 y 362

    NASA Astrophysics Data System (ADS)

    Campos, J. M.; Calderón, J. H.; Gimeno, N. G.; Díaz, R. J.

    Continuando con la fotometría CCD de Grupos de Galaxias Compactos de Shakhbazyan (SCGG) en este trabajo se presentan nuevos resultados preliminares sobre los grupos Shakbazyan 37, 45, 166, 331 y 362. EL objeto del proyecto es contribuir al estudio de las propiedades físicas de tales grupos y contribuir a las bases de datos para mejora de las estadísticas. Los datos fueron adquiridos con el Telescopio JKT del Observatorio Norte Europeo. El análisis de las imágenes en las bandas I y B como del índice de color B-I permitió reidentificar las galaxias catalogadas, resultando las mismas muy enrojecidas y verificando que predominan las galaxias tempranas, resultados consistentes con los obtenidos para otros grupos y por otros autores.

  7. A Trust-Based Pact in Research Biobanks. From Theory to Practice.

    PubMed

    Sanchini, Virginia; Bonizzi, Giuseppina; Disalvatore, Davide; Monturano, Massimo; Pece, Salvatore; Viale, Giuseppe; Di Fiore, Pier Paolo; Boniolo, Giovanni

    2016-05-01

    Traditional Informed Consent is becoming increasingly inadequate, especially in the context of research biobanks. How much information is needed by patients for their consent to be truly informed? How does the quality of the information they receive match up to the quality of the information they ought to receive? How can information be conveyed fairly about future, non-predictable lines of research? To circumvent these difficulties, some scholars have proposed that current consent guidelines should be reassessed, with trust being used as a guiding principle instead of information. Here, we analyse one of these proposals, based on a Participation Pact, which is already being offered to patients at the Istituto Europeo di Oncologia, a comprehensive cancer hospital in Milan, Italy.

  8. [In Process Citation].

    PubMed

    Álvarez, Cristian; Ramírez-Campillo, Rodrigo; Vallejos-Rojas, Andrea; Jaramillo-Gallardo, Javiera; Salas Bravo, Carlos; Cano-Montoya, Johnattan; Celis-Morales, Carlos

    2016-03-25

     Introducción: obesidad e inactividad física son importantes factores de riesgo para el desarrollo de hipertensión en adultos. No obstante, hay poca evidencia sobre el efecto de estos factores de riesgo en el desarrollo de hipertensión en población infantil. Objetivo: investigar la asociación del estado nutricional, niveles de actividad física y etnicidad con niveles de hipertensión en escolares entre 6 y 13 años de edad. Métodos: un total de 418 escolares de ascendencia étnica europea (n = 311) y mapuche (n = 107) fueron participantes de este estudio transversal. Se midió el peso, talla, índice de masa corporal (IMC) y presión arterial, utilizando protocolos estandarizados. Resultados: no se encontraron diferencias significativas en IMC, estado nutricional y presión arterial entre niños con ascendencia europea y mapuche. No obstante, la prevalencia de prehipertensión (21,3% vs. 11,1%) e hipertensión (28,9% vs. 18,6%) fue significativamente mayor en escolares mapuches en comparación con europeos, respectivamente. Escolares con ascendencia mapuche tienen un mayor riesgo de desarrollar prehipertensión o hipertensión que escolares con ascendencia europea (OR: 1,92 [1,19 a 3,06], p < 0,01). La prevalencia de hipertensión aumenta significativamente en ambos grupos étnicos con el incremento de IMC y bajos niveles de actividad física. Conclusiones: el riesgo de desarrollar prehipertensión o hipertensión es mayor en población infantil ascendiente de mapuches que ascendiente de europeos y este riesgo se ve acentuado con el incremento de obesidad y bajos niveles de actividad física.

  9. Laparoscopic resection of tailgut cysts: the size is not the issue.

    PubMed

    Dalmonte, Giorgio; Tartamella, Francesco; Mita, Maria Teresa; De Sario, Giuseppina; Roncoroni, Luigi; Marchesi, Federico

    2016-11-03

    Gli amartomi cistici retrorettali (Tailgut cysts) sono rare lesioni dello spazio presacrale che avendo rischio intrinseco di trasformazione maligna e recidiva sono normalmente trattate mediante asportazione chirurgica anche nel caso in cui siano asintomatiche. Negli ultimi vent’anni si sta affermando il trattamento mediante accesso addominale laparoscopico per la sua migliore esposizione delle strutture della pelvi e la sua minore invasività. In questo caso clinico presentiamo il trattamento del più grande amartoma cistico retrorettale asportato laparoscopicamente fino ad ora riportato in letteratura. Essendo nella maggior parte dei casi asintomatici, la diagnosi degli amartomi cistici retrorettali è spesso incidentale durante una visita medica di routine. Nel successivo studio è particolarmente indicata la RM per orientare la scelta dell’approccio chirurgico data la sua maggiore risoluzione nei tessuti molli e nella determinazione dell’invasività locale. La trasformazione maligna di queste lesioni si stima possa avvenire nel 14,1% dei casi, per questo l’exeresi chirurgica è la terapia di scelta. Tra i differenti approcci la tecnica transaddominale laparoscopica, se eseguita da chirurghi esperti nella chirurgia pelvica laparoscopica, garantisce la migliore visualizzazione degli organi pelvici e una minore morbidità. A causa del rischio di rottura e insemenzamento l’approccio laparoscopico non dovrebbe essere utilizzato in caso di sospetta malignità della lesione cistica. Il nostro caso corrobora la validità del trattamento laparoscopico degli amartomi cistici retrorettali, anche quando possiedono dimensioni considerevoli. Lo studio preo-peratorio è quindi cruciale per determinare la possibile malignità della lesione ed eseguire in tal caso un approccio laparotomico.

  10. Space Radar Image of Kilauea, Hawaii

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Data acquired on April 13, 1994 and on October 4, 1994 from the X-band Synthetic Aperture Radar on board the space shuttle Endeavour were used to generate interferometric fringes, which were overlaid on the X-SAR image of Kilauea. The volcano is centered in this image at 19.58 degrees north latitude and 155.55 degrees west longitude. The image covers about 9 kilometers by 13 kilometers (5.6 miles by 8 miles). The X-band fringes correspond clearly to the expected topographic image. The yellow line indicates the area below which was used for the three-dimensional image using altitude lines. The yellow rectangular frame fences the area for the final topographic image. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR. The Instituto Ricerca Elettromagnetismo Componenti Elettronici (IRECE) at the University of Naples was a partner in interferometry analysis.

  11. The Digital Electronic Subsystem of Marsis

    NASA Astrophysics Data System (ADS)

    Maltecca, L.; Pecora, M.; Scandelli, L.

    MARSIS (Mars Advanced Radar for Subsurface and Ionospheric Sounding) is one of the Instrument of the ESA Mars Express mission, to be launched in June 2003 with a Soyuz/Fregate. Its primary objective is to map the distribution of water, both liquid and solid, in the upper portions of the crust of Mars. Secondary objectives are subsurface geologic probing, surface characterisation and ionosphere sounding. The MARSIS instrument is a low-frequency nadir-looking pulse limited radar sounder and altimeter with ground penetration capabilities, which uses synthetic aperture techniques and a secondary-receiving antenna to isolate subsurface reflections. Functionally and also from the responsibility point of view of each organisation involved in MARSIS, the instrument can be split into three subsystems: - Antenna: ANT - Radio Frequency Subsystem: RFS (TX+RX) - Digital Electronics Subsystem: DES MARSIS is an international co-operation between Italian Space Agency (ASI) and National Aeronautics and Space Administration (NASA). The experiment has an Italian Principal investigator (from Infocom Dept. of University of Rome "La Sapienza"), an U.S. Co-PI (from Jet Propulsion Laboratory), and Co-I~@~Ys from Italy, the U.S. and other countries. Italy is the lead for the experiment definition with the participation of the U.S.. In particular Alenia Spazio/Rome is the Prime Contractor of the industrial team and also supplier of part of the RF subsystem. Laben (a company of Finmeccanica) is the supplier of the Digital Electronic Subsystem (DES), including its basic and application SW, as subcontractor of ALS. The purpose of this paper is to describe the DES from HW and SW point of view, including the Test Equipment and the special simulator developed used for DES validation.

  12. National Workshop on Astrobiology: the life science involvement of AAS-I Laben.

    PubMed

    Adami, Giorgio

    2006-12-01

    The search for traces of past and present life is a complex and multidisciplinary research activity involving several scientific heritages and a specific industrial ability for planetary exploration. Laben was established in 1958 to design and manufacture electronic instruments for research in nuclear physics. In the mid 2004 the company was merged with Alenia Spazio. It is now part of Alcatel Alenia Space, a French Italian joint venture. Alcatel Alenia Space Italia SpA is a Finmeccanica Company. Currently the plant of Vimodrone provides a wide heritage in life science oriented to space application. The experience in Space Life Science is consolidated in the following research areas: (1) Physiology: Mouse models related to studies on human physiology Human neuroscience research and dosimetry (2) Animal Adaptation and Behaviour: mice behaviour related to stabling stress (3) Developmental Biology: aquatic microorganisms cultivation (4) Cell culture & Biotechnology: Protein crystal growth General purpose Multiwell Next Biotechnology studies and development: Bio reactor, mainly oriented to tissue engineering Microsensor for tissue control (organ replacement) Multiwell for adherent cell culture or for automated biosensor based on cell culture Experiment Container for organic systems Experiment Container for small animals Instrumentation based on fluorescent Biosensors Sensors for Life science experiments for Biopan capsule and Space Vehicle Ray Shielding Materials Random Positioning Machine specialisation (Support ground equipment) The biological features of this heritage is at disposal for the exobiology multi science. The involvement of industries, from the beginning of the exobiology projects, allows a cost effective technologies closed loop development between Research Centres, Principal Investigators and industry.

  13. Space Radar Image of Kilauea Volcano, Hawaii

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This three-dimensional image of the volcano Kilauea was generated based on interferometric fringes derived from two X-band Synthetic Aperture Radar data takes on April 13, 1994 and October 4, 1994. The altitude lines are based on quantitative interpolation of the topographic fringes. The level difference between neighboring altitude lines is 20 meters (66 feet). The ground area covers 12 kilometers by 4 kilometers (7.5 miles by 2.5 miles). The altitude difference in the image is about 500 meters (1,640 feet). The volcano is located around 19.58 degrees north latitude and 155.55 degrees west longitude. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR. The Instituto Ricerca Elettromagnetismo Componenti Elettronici (IRECE) at the University of Naples was a partner in the interferometry analysis.

  14. The SAX Italian scientific satellite. The on-board implemented automation as a support to the ground control capability

    NASA Technical Reports Server (NTRS)

    Martelli, Andrea

    1994-01-01

    This paper presents the capabilities implemented in the SAX system for an efficient operations management during its in-flight mission. SAX is an Italian scientific satellite for x-ray astronomy whose major mission objectives impose quite tight constraints on the implementation of both the space and ground segment. The most relevant mission characteristics require an operative lifetime of two years, performing scientific observations both in contact and in noncontact periods, with a low equatorial orbit supported by one ground station, so that only a few minutes of communications are available each orbit. This operational scenario determines the need to have a satellite capable of performing the scheduled mission automatically and reacting autonomously to contingency situations. The implementation approach of the on-board operations management, through which the necessary automation and autonomy are achieved, follows a hierarchical structure. This has been achieved adopting a distributed avionic architecture. Nine different on-board computers, in fact, constitute the on-board data management system. Each of them performs the local control and monitors its own functions while the system level control is performed at a higher level by the data handling applications software. The SAX on-board architecture provides the ground operators with different options of intervention by three classes of telecommands. The management of the scientific operations will be scheduled by the operation control center via dedicated operating plans. The SAX satellite flight mode is presently being integrated at Alenia Spazio premises in Turin for a launch scheduled for the end of 1995. Once in orbit, the SAX satellite will be subject to intensive check-out activities in order to verify the required mission performances. An overview of the envisaged procedure and of the necessary on-ground activities is therefore depicted as well.

  15. Impact: an Integrated Approach (Space and Ground) for Monitoring the Threat of Earth Orbit Corssing Celestial Bodies

    NASA Astrophysics Data System (ADS)

    Bussolino, L.; Somma, R.

    The threat of possible collision of asteroids and comets with our planet has reached an international stage since 1990 when U.S.A. Congress set up a dedicated committee for the analysis and the assessment of this problem.The U.N. organized a congress later on to summarize the current knowledge on this subject as well as the Europea Council recommended its member states to conduct studies to further deepen the understanding in terms of tackling and solving this kind of problem interesting the entire world. IMPACT is the acronym for " International Monitoring Program for Asteroids and Comets Threats " coming out as proposal from a study funded by the italian region PIEMONTE throughout the Civil Protection Bureau and performed by the Planetology Group of the Astronomical Observatory of Torino ( Italy ) and Alenia Spazio for the engineering part. They have carried out a series of analyses aimed at contributing in subsequent steps to the solution of the two fundamental problems associated to the potential impact threat : the assessment of the numbers of killers/terminators and the impact rates from one side and the development of the idea of considering space segments for supporting activities of discovery as well as the physical and mineralogical characterization using satellites in orbit around the Earth. other additional studies also funded by the European Space Agency where the space technology appears to offer a great contribution if conveniently integrated with the Earth networks for Potentially Hazardous Asteroids ( PHA ) detection. An international approach for monitoring this threat for the Earth is then proposed.

  16. The OMEGA Instrument on board Mars Express: First Results

    NASA Astrophysics Data System (ADS)

    Bellucci, G.; Altieri, F.; Bibring, J. P.; OMEGA Team

    OMEGA (Observatoire pour la Mineralogie, l'Eau, le Glace e l'Activité) is a visible and near infrared mapping spectrometer, operating in the spectral range (0.35 - 5.1 μm). Combining imagery and spectrometry, OMEGA is designed to provide the mineralogical and molecular composition of the surface and atmosphere of Mars through the spectral analysis of the diffused solar light and surface thermal emission. OMEGA will provide a global coverage at medium resolution (2 to 5 km) of the entire surface of Mars from altitudes 1500 to 4000 km, and high resolution (< 400 m) spectral images of selected areas, amounting to a few percents of the surface, when observed close to periapsis (< 300 km altitude). OMEGA will address major questions associated to internal structure, geologic and chemical evolution, past activity and present surface variegation. It will greatly contribute to the understanding of the evolution of Mars from geological time scales to seasonal variations. It will in particular give unique clues for understanding the H2O and CO2 cycles over the Mars history. It will play a major role in identifying areas of interest for the future martian in situ explorations. OMEGA is an international collaboration between France, Italy and Russia, involving the following Institutions: IAS (Institut d'Astrophysique Spatiale, Orsay, France), DESPA (Département de Recherches Spatiales, Observatoire de Paris/Meudon, France), IFSI (Istituto di Fisica dello Spazio Interplanetario, Rome, Italy) and IKI (Institute for Space Research, Moscow, Russia). In this paper we present the first results after few months from starting of its observations.

  17. Utilisation of Wearable Computing for Space Programmes Test Activities Optimasation

    NASA Astrophysics Data System (ADS)

    Basso, V.; Lazzari, D.; Alemanni, M.

    2004-08-01

    New technologies are assuming a relevant importance in the Space business domain also in the Assembly Integration and Test (AIT) activities allowing process optimization and capability that were unthinkable only few years ago. This paper has the aim to describe Alenia Spazio (ALS) gained experience on the remote interaction techniques as a results of collaborations established both on European Communities (EC) initiatives, with Alenia Aeronautica (ALA) and Politecnico of Torino (POLITO). The H/W and S/W components performances increase and costs reduction due to the home computing massive utilization (especially demanded by the games business) together with the network technology possibility (offered by the web as well as the hi-speed links and the wireless communications) allow today to re-think the traditional AIT process activities in the light of the multimedia data exchange: graphical, voice video and by sure more in the future. Aerospace business confirm its innovation vocation which in the year '80 represents the cradle of the CAD systems and today is oriented to the 3D data visualization/ interaction technologies and remote visualisation/ interaction in collaborative way on a much more user friendly bases (i.e. not for specialists). Fig. 1 collects AIT extended scenario studied and adopted by ALS in these years. ALS experimented two possibilities of remote visualization/interaction: Portable [e.g. Fig.2 Personal Digital Assistant (PDA), Wearable] and walls (e.g.VR-Lab) screens as both 2D/3D visualisation and interaction devices which could support many types of traditional (mainly based on EGSE and PDM/CAD utilisation/reports) company internal AIT applications: 1. design review support 2. facility management 3. storage management 4. personnel training 5. integration sequences definition 6. assembly and test operations follow up 7. documentation review and external access to AIT activities for remote operations (e.g. tele-testing) EGSE Portable Clean room

  18. MIOSAT Mission Scenario and Design

    NASA Astrophysics Data System (ADS)

    Agostara, C.; Dionisio, C.; Sgroi, G.; di Salvo, A.

    2008-08-01

    MIOSAT ("Mssione Ottica su microSATellite") is a low-cost technological / scientific microsatellite mission for Earth Observation, funded by Italian Space Agency (ASI) and managed by a Group Agreement between Rheinmetall Italia - B.U. Spazio - Contraves as leader and Carlo Gavazzi Space as satellite manufacturer. Several others Italians Companies, SME and Universities are involved in the development team with crucial roles. MIOSAT is a microsatellite weighting around 120 kg and placed in a 525 km altitude sun-synchronuos circular LEO orbit. The microsatellite embarks three innovative optical payloads: Sagnac multi spectral radiometer (IFAC-CNR), Mach Zehender spectrometer (IMM-CNR), high resolution pancromatic camera (Selex Galileo). In addition three technological experiments will be tested in-flight. The first one is an heat pipe based on Marangoni effect with high efficiency. The second is a high accuracy Sun Sensor using COTS components and the last is a GNSS SW receiver that utilizes a Leon2 processor. Finally a new generation of 28% efficiency solar cells will be adopted for the power generation. The platform is highly agile and can tilt along and cross flight direction. The pointing accuracy is in the order of 0,1° for each axe. The pointing determination during images acquisition is <0,02° for the axis normal to the boresight and 0,04° for the boresight. This paper deals with MIOSAT mission scenario and definition, highlighting trade-offs for mission implementation. MIOSAT mission design has been constrained from challenging requirements in terms of satellite mass, mission lifetime, instrument performance, that have implied the utilization of satellite agility capability to improve instruments performance in terms of S/N and resolution. The instruments provide complementary measurements that can be combined in effective ways to exploit new applications in the fields of atmosphere composition analysis, Earth emissions, antropic phenomena, etc. The Mission

  19. Design and implementation of telephone dialer based on Arduino

    NASA Astrophysics Data System (ADS)

    Ma, Zilong; Lei, Ying

    2017-03-01

    Introduces a system design scheme of the telephone dialer based on Arduino, including the design principle, hardware and software design and the experimental results in this paper. The scheme is based on the dual tone multi frequency (DTMF) dialing mode, using the Arduino UNO as the main controller, the serial port send out the telephone number to be dialed, speaker synthesize the voice.

  20. An Inquiry-Based Exercise for Demonstrating Prey Preference in Snakes

    ERIC Educational Resources Information Center

    Place, Aaron J.; Abramson, Charles I.

    2006-01-01

    The recent promotion of inquiry-based learning techniques (Uno, 1990) is well suited to the use of animals in the classroom. Working with living organisms directly engages students and stimulates them to actively participate in the learning process. Students develop a greater appreciation for living things, the natural world, and their impact on…

  1. Nurturing "School Minds"

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2009-01-01

    Through order and English immersion, a network of charter schools strives to turn Latino students into informed citizens and leaders inside and outside the community. Chicago-based United Neighborhood Organization, or UNO, is a Latino advocacy group with a history of community organizing. The group recently received a $98 million grant from the…

  2. Big Data, Predictive Analytics, and Quality Improvement in Kidney Transplantation: A Proof of Concept.

    PubMed

    Srinivas, T R; Taber, D J; Su, Z; Zhang, J; Mour, G; Northrup, D; Tripathi, A; Marsden, J E; Moran, W P; Mauldin, P D

    2017-03-01

    We sought proof of concept of a Big Data Solution incorporating longitudinal structured and unstructured patient-level data from electronic health records (EHR) to predict graft loss (GL) and mortality. For a quality improvement initiative, GL and mortality prediction models were constructed using baseline and follow-up data (0-90 days posttransplant; structured and unstructured for 1-year models; data up to 1 year for 3-year models) on adult solitary kidney transplant recipients transplanted during 2007-2015 as follows: Model 1: United Network for Organ Sharing (UNOS) data; Model 2: UNOS & Transplant Database (Tx Database) data; Model 3: UNOS, Tx Database & EHR comorbidity data; and Model 4: UNOS, Tx Database, EHR data, Posttransplant trajectory data, and unstructured data. A 10% 3-year GL rate was observed among 891 patients (2007-2015). Layering of data sources improved model performance; Model 1: area under the curve (AUC), 0.66; (95% confidence interval [CI]: 0.60, 0.72); Model 2: AUC, 0.68; (95% CI: 0.61-0.74); Model 3: AUC, 0.72; (95% CI: 0.66-077); Model 4: AUC, 0.84, (95 % CI: 0.79-0.89). One-year GL (AUC, 0.87; Model 4) and 3-year mortality (AUC, 0.84; Model 4) models performed similarly. A Big Data approach significantly adds efficacy to GL and mortality prediction models and is EHR deployable to optimize outcomes.

  3. Changing the Scholarly Sources Landscape with Geomorphology Undergraduate Students

    ERIC Educational Resources Information Center

    Blackburn, Heidi; Dere, Ashlee

    2016-01-01

    Science is a core discipline in academia yet the focus of most undergraduate technical writing is generally on the data and results, not the literature review. The Science, Technology, Engineering, and Math (STEM) librarian and a new geology professor at the University of Nebraska at Omaha (UNO) collaborated to develop an information literacy…

  4. Research on Synthesis of Concurrent Computing Systems.

    DTIC Science & Technology

    1982-09-01

    NAMEBOUND ENUMERS’ A Y=( GENSYM ’PROC) A Z:’PROCESSORS YDOUND ENUMERS HAS NAMEBoUND’ Z E *’.STATEMENTS of this quantification is the entire rule... GENSYM ’PROC) A Z:IPROCESSORS Y HAS NAMEoUNO ENUMERS’ Z E **.STATEMENTS Rules MAKE-PS. and MAKE-IOPS# make PROCESSORS statements that do not have

  5. Situational Awareness in Aerospace Operations (La Perception de la Situation au cours des Operations Aeriennes)

    DTIC Science & Technology

    1990-04-01

    dane Is pries do conscience do In situation 2.1 Facteurs impliquds dana twriestatlon npatiale LA tiche do pilotage neat pas uno situation naturelle ...domouverimntit fixil pikr un bracelet bur Ie pal gna! droit 04npflotos a dtd utilsia. Ce capteur comptabil ice lea d~placernentm A partir d~une

  6. A Simulation of Coevolution Using Playing Cards

    ERIC Educational Resources Information Center

    Tatina, Robert

    2007-01-01

    In this article, the author describes a simulation of a coevolutionary "arms race" and introduce a way of teaching it that lets students use the theory of natural selection to explain the outcomes of the simulation. The simulation uses the numerical cards from an UNO[R] playing card deck to represent the speeds of individuals in populations of…

  7. Investigating Cell-Material Interactions of Magnetospirillum magneticum as an Approach for Probing Submerged Surface Structural Integrity

    DTIC Science & Technology

    2012-07-01

    by which the pair of coils is offset (see Figure 1). We then programmed an Arduino Uno microcontroller to rapidly alternate between the...two coils. A circuit with a transistor (TIP 102) and diode (1N4004) was built to protect the Arduino as the maximum current for the Arduino is about

  8. An Investigation of Anglicized Spanish as a Communication Strategy in the Beginning Spanish Classroom

    ERIC Educational Resources Information Center

    Kobeck, Ashley Brianne

    2013-01-01

    Considering the recent increase in Spanish use in the United States, particularly as reflected in the media, beginning Spanish students are entering their classrooms with knowledge of phrases such as "hasta la vista" and "numero uno," regardless of their amount of previous formal Spanish study. The present research focuses on…

  9. Who gets a heart? Rationing and rationalizing in heart transplantation.

    PubMed Central

    Allen, M D; Fishbein, D P; McBride, M; Ellison, M; Daily, O P

    1997-01-01

    National policy on organ transplantation is made by the United Network for Organ Sharing (UNOS), a representative body composed of health care professionals and patients. Standardized criteria for determining when a patient should be placed on the waiting list for heart transplantation are now in effect nationwide. Current and future directions to maximize the utilization of available donated organs are explored. PMID:9217435

  10. Initial Results of On-Line Earth System Science Course Offerings at the University of Nebraska-Omaha Through the Earth System Science Education Alliance

    NASA Astrophysics Data System (ADS)

    Shuster, R. D.; Grandgenett, N. F.; Schnase, W. L.; Hamersky, S.; Moshman, R.

    2008-12-01

    The University of Nebraska at Omaha has been offering on-line Earth System Science coursework to teachers in Nebraska since 2002. UNO was one of the initial members in the Earth Systems Science Education Alliance (ESSEA) and has offered three different ESSEA courses, with nearly 200 students having taken ESSEA courses at UNO for graduate credit. Our experiences in delivering this coursework have involved both teachers who have received a stipend to take the course and those who have paid their own tuition and fees and received graduate credit for the course. We will report on the online behavior of teachers from both populations and also discuss pros and cons of each approach. UNO has also experimented with different approaches in the support and management of the course, including using undergraduate majors as content experts. This improves access of teachers to content-related feedback and is a positive experience for the undergraduate major. Feedback surveys from earlier ESSEA offerings indicate a strongly positive perception of the courses by the teachers enrolled in the coursework. Project impact has been documented in teacher projects, quotes, and lessons associated with the coursework activities. We will also describe online course modules being developed within the UNO online course efforts, including one focusing on the global amphibian crisis.

  11. National Economic Development Procedures Manual. Recreation. Volume 3. A Case Study Application of the Contingent Valuation Method for Estimating Urban Recreation Use and Benefits

    DTIC Science & Technology

    1990-11-01

    fully consider the recreation potential that may be provided at Corps Civil Works projects. Formulated plans should, therefore, be responsive to... formulario en el sobre adjunto para nuevamente enviarle uno escrito en espaiiol. Nombre Direccion * College of Agriculture Texas Agricultural Experiment

  12. Nuclear Medicine Imaging

    MedlinePlus

    ... necesita saber acerca de... Estudios de Imagen de Medicina Nuclear Un procedimiento de medicina nuclear se describe algunas veces como unos rayos- ... través del cuerpo del paciente. Los procedimientos de medicina nuclear utilizan pequeñas cantidades de mate- riales radiactivos, ...

  13. A Study of the Spanish-Ethnic Soldier: Attitudes, Problems, Needs

    DTIC Science & Technology

    1973-12-31

    I’ ~ I I i .... j ! .;...) INSTRUCCIONES GENERALES Este manual de encuesta consta de cuatro tipos diferentes de cuestionarios, Cada uno...I ’ L.~ ) J _, ) J I ’ l ’__..---..\\ .... J / \\ u I _j p I ! . .J Secci6n I Este es un estudio de algunas de sus actitudes. No hay

  14. Racial disparities in reaching the renal transplant waitlist: is geography as important as race?

    PubMed Central

    Saunders, Milda R.; Lee, Haena; Alexander, G. Caleb; Tak, Hyo Jung; Thistlethwaite, J. Richard; Ross, Lainie Friedman

    2016-01-01

    Background In the United States, African Americans and whites differ in access to the deceased donor renal transplant waitlist. The extent to which racial disparities in waitlisting differ between United Network for Organ Sharing (UNOS) regions is understudied. Methods The US Renal Data System (USRDS) was linked with US census data to examine time from dialysis initiation to waitlisting for whites (n = 188 410) and African Americans (n = 144 335) using Cox proportional hazards across 11 UNOS regions, adjusting for potentially confounding individual, neighborhood, and state characteristics. Results Likelihood of waitlisting varies significantly by UNOS region, overall and by race. Additionally, African Americans face significantly lower likelihood of waitlisting compared to whites in all but two regions (1 and 6). Overall, 39% of African Americans with ESRD reside in Regions 3 and 4 – regions with a large racial disparity and where African Americans comprise a large proportion of the ESRD population. In these regions, the African American–white disparity is an important contributor to their overall regional disparity. Conclusions Race remains an important factor in time to transplant waitlist in the United States. Race contributes to overall regional disparities; however, the importance of race varies by UNOS region. PMID:25818547

  15. Enhancing the STEM Ecosystem through Teacher-Researcher Partnerships

    ERIC Educational Resources Information Center

    Tapprich, William; Grandgenett, Neal; Leas, Heather; Rodie, Steve; Shuster, Robert; Schaben, Chris; Cutucache, Christine

    2016-01-01

    STEM faculty at the University of Nebraska at Omaha (UNO) have partnered with teachers and administrators in the Omaha Public Schools (OPS) to implement a Teacher-Researcher Partnership Program. This program establishes resources and infrastructure that engage K-12 science teachers in scientific research experiences. In the first implementation of…

  16. Nuevas estrategias de gestión, tratamiento y valorización de los efluentes organicos pecuarios: Experiencias en USDA. (Management strategies for organic livestock effluents,innovative treatment and valorization)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    En la actualidad el impacto potencial de los residuos ganaderos en el medio-ambiente representa uno de los desafíos más grandes de la agricultura. Las tecnologías de tratamiento pueden tener un importante papel en el manejo de los residuos ganaderos dando más flexibilidad en los programas de la apli...

  17. Increasing the Number of Homegrown STEM Majors: What Works and What Doesn't

    ERIC Educational Resources Information Center

    Heidel, Jack; Ali, Hesham; Corbett, Bernadette; Liu, Jenny; Morrison, Brad; O'Connor, Michele; Richter-Egger, Dana; Ryan, Carey

    2011-01-01

    University of Nebraska-Omaha (UNO) and Metropolitan Community College (MCC) have recently completed a five-year NSF STEP project to increase the number of homegrown STEM graduates. The overall project has been quite successful, and the numbers of degrees granted has increased. However, some strategies have worked much better than others. Among the…

  18. Leyendo con tu hijo: Consejos practicos para los padres... (Reading with Your Child: Practical Advice for Parents...).

    ERIC Educational Resources Information Center

    Colorado State Dept. of Education, Denver.

    This brochure (in Spanish) offers some practical tips for Spanish-speaking parents who wish to read to their young children. The brochure first provides general tips, such as "Lea a su hijo en voz alto por lo menos unos 15 minutos todos los dias" (Read to your child aloud for at least 15 minutes daily), and "Estabeleza una rotina y…

  19. Dicloruro de paraquat

    EPA Pesticide Factsheets

    El dicloruro de paraquat, comúnmente conocido como “paraquat,” es uno de los herbicidas registrados de mayor uso en los Estados Unidos. El paraquat también se conoce como Gramaxone (un producto popular de uso final

  20. Los desafíos de tratar con las atmósferas: Entrada, Descenso y Aterrizaje

    NASA Video Gallery

    Ya sea aterrizando en Marte o de regreso a la Tierra, uno de los mayores desafíos de cualquier misión es la entrada, descenso y aterrizaje. Solo piense -- una nave espacial que pasa volando a toda ...

  1. Thirty-three years of recruiting and graduating minority students at the University of New Orleans.

    NASA Astrophysics Data System (ADS)

    Serpa, L. F.; Pavlis, T. L.

    2006-12-01

    The University of New Orleans (UNO) began a formal program to recruit minority geoscience students in 1974 when Dr. Louis Fernandez initiated the program through a grant from the National Science Foundation. A major tool in the original program was to take minority high school students on a field trip. That early program was a major success at a time when even one African American student graduating with a B.S. degree in Geology or Geophysics from any university in the U.S. was considered to be significant. The field trip has continued every year since the program began and it continues to be part of a very successful recruiting effort. Over the last approximately 15 years, the minority geoscience undergraduate student population at UNO rose to approximately 40% with African American students making up the largest single ethnic group. The retention and graduation rates of these minority undergraduates at UNO are high and minority students are often graduating at or near the top of their class. Despite the disproportionate displacement of African Americans from the New Orleans area after Hurricane Katrina, those minority geoscience students who can return to UNO are doing so in significant numbers. Thus, the minority program appears to have achieved a high level of sustainability. Recently we took a closer look at the program to determine the possible explanations for its success. Although availability of scholarships, tutoring and mentors clearly contributes to our success, the key to the success of the program remains the field trip. The trip not only serves as an academic opportunity for students to see geological features first hand and develop a curiosity for earth sciences, but it also affords an opportunity to build trust and a relationship between the faculty on the trip and the meet other potential students. That trust may be the most important key to our successful recruitment of minority students at UNO. In addition, the approximately 2 week field trip is

  2. CASA Central and South America GPS geodesy

    NASA Astrophysics Data System (ADS)

    Kellogg, James; Dixon, Timothy; Neilan, Ruth

    In January 1988, scientists from over 25 organizations in 13 countries and territories cooperated in the largest Global Positioning System (GPS) campaign in the world to date (Table 1) [Neilan et al., 1988]. From January 18 to February 5, 1988, 43 GPS receivers collected about 590 station-days of data in American Samoa, Australia, Canada, Colombia, Costa Rica, Ecuador, New Zealand, Norway, Panama, Sweden, United States, West Germany, and Venezuela. The experiment was entitled CASA UNO, an acronym for Central and South America—and “uno” is Spanish for “one,” designating first-epoch measurements. The CASA UNO experiment was the first civilian effort at implementing an extended GPS satellite-tracking network and established the first major GPS network in the northern Andean margin and the western Caribbean.

  3. Using LEDs to reduce energy consumption

    NASA Astrophysics Data System (ADS)

    Eweni, Chukwuebuka E.

    The most popularly used light bulb in homes is the incandescent. It is also the least energy efficient. The filament in the bulb is so thin that it causes resistance in the electricity, which in turn causes the electricity's energy to form heat. This causes the incandescent to waste a lot of energy forming heat rather than forming the light. It uses 15 lumens per watt of input power. A recorded MATLAB demonstration showcased LED versatility and how it can be used by an Arduino UNO board. The objective of this thesis is to showcase how LEDs can reduce energy consumption through the use of an Arduino UNO board and MATLAB and to discuss the applications of LED. LED will be the future of lighting homes and will eventually completely incandescent bulbs when companies begin to make the necessary improvements to the LED.

  4. Space Radar Image of Manaus, Brazil

    NASA Technical Reports Server (NTRS)

    1999-01-01

    changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  5. Space Radar Image of Kennedy Space Center, Florida

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This is an X-band Synthetic Aperture Radar image spanning an area of about 20 kilometers by 40 kilometers (12 miles by 25 miles) of the Kennedy Space Center, Florida. At the top right are cloud-like structures which indicate rain. X-SAR is able to image heavy rainfall. The Atlantic Ocean is at the upper right. The shuttle landing strip is seen at the top left of the image. The Vertical Assembly Building, the Orbiter Processing Facility and other associated buildings are seen as a white area to the right and just above the end of the shuttle strip. The shuttle launch pads are the two white areas near the top center of the image. The Banana River shows up as a large black area running north to south to the right of the image. The Indian River is on the left side of the image. Just above the image center is a cluster of white spots which are the major buildings of the Kennedy Space Center industrial area. This was the location of the reflector array that was constructed to form the letters 'KSC' by the KSC payload team. The data for these KSC images were taken on orbit 81 of the space shuttle Endeavour on the fourth day of the SIR-C/X-SAR mission. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio

  6. SPace Radar Image of Fort Irwin, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  7. Space Radar Image of Manaus, Brazil

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This false-color L-band image of the Manaus region of Brazil was acquired by the Spaceborne Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on orbit 46 of the mission. The area shown is approximately 8 kilometers by 40 kilometers (5 by 25 miles). At the top of the image are the Solimoes and Rio Negro rivers just before they combine at Manaus to form the Amazon River. The image is centered at about 3 degrees south latitude, and 61 degrees west longitude. The false colors are created by displaying three L-band polarization channels; red areas correspond to high backscatter at HH polarization, while green areas exhibit high backscatter at HV polarization. Blue areas show low returns at VV polarization; hence the bright blue colors of the smooth river surfaces. Using this coloring scheme, green areas in the image are heavily forested, while blue areas are either cleared forest or open water. The yellow and red areas are flooded forest. Between Rio Solimoes and Rio Negro a road can be seen running from some cleared areas (visible as blue rectangles north of Rio Solimoes) north towards a tributary of Rio Negro. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio

  8. Space Radar Image of Kilauea, Hawaii - interferometry 1

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This X-band image of the volcano Kilauea was taken on October 4, 1994, by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar. The area shown is about 9 kilometers by 13 kilometers (5.5 miles by 8 miles) and is centered at about 19.58 degrees north latitude and 155.55 degrees west longitude. This image and a similar image taken during the first flight of the radar instrument on April 13, 1994 were combined to produce the topographic information by means of an interferometric process. This is a process by which radar data acquired on different passes of the space shuttle is overlaid to obtain elevation information. Three additional images are provided showing an overlay of radar data with interferometric fringes; a three-dimensional image based on altitude lines; and, finally, a topographic view of the region. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR. The Instituto Ricerca Elettromagnetismo

  9. space Radar Image of Long Valley, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  10. Space Radar Image of Long Valley, California in 3-D

    NASA Technical Reports Server (NTRS)

    1994-01-01

    induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  11. Space Radar Image of Namib Desert in Southern Namib

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This is a C-band, VV polarization radar image of the Namib desert in southern Namibia, near the coast of South West Africa. The image is centered at about 25 degrees South latitude, 15.5 degrees East longitude. This image was one of the first acquired by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) when it was taken on orbit 4 from the shuttle Endeavour on April 9, 1994. The area shown is approximately 78 kilometers by 20 kilometers. The dominant features in the image are complex sand dune patterns formed by the prevailing winds in this part of the Namib desert. The Namib desert is an extremely dry area formed largely because of the influence of the cold Benguela ocean current that flows northward along the coast of Namibia. The bright areas at the bottom of the image are exposed outcrops of Precambrian rocks. This extremely barren area is a region rich in diamonds that through the centuries have washed down from the mountains. The town of Luderitz is located just to the south of the area shown. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Aumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia

  12. Space Radar Image of Raco Vegetation Map

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This is a vegetation map of the Raco, Michigan area produced from data acquired by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) onboard space shuttle Endeavour. The radar image, taken on April 9, 1994, has been used by science team members at the University of Michigan to produce detailed map of land cover. This image is centered at 46.4 degrees north latitude and 84.9 degrees west longitude. The imaged area is approximately 24 by 32 kilometers (15 by 20 miles). The Raco airport, which is a decommissioned military base, is easily identified by its triangular runway structure. An edge of Lake Superior, approximately 44 kilometers (27 miles) west of Sault Sainte Marie, appears in the top right of the image. In this land cover map each 30- by 30-meter (98- by 98-foot) spot is identified as either a water surface, bare ground, short vegetation, deciduous forest, lowland conifers or upland conifers. Different types of ground cover have different effects on Earth's chemical, water and energy cycles. By cataloguing ground cover in an area, scientists expect to better understand the processes of these cycles in a specific area. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio

  13. Space Radar Image of Mammoth, California in 3-D

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This is a three-dimensional perspective of Mammoth Mountain, California. This view was constructed by overlaying a Spaceborne Imaging Radar-C (SIR-C) radar image on a U.S. Geological Survey digital elevation map. Vertical exaggeration is 1.87 times. The image is centered at 37.6 degrees north, 119.0 degrees west. It was acquired from the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) onboard space shuttle Endeavour on its 67th orbit on April 13, 1994. In this color representation, red is C-band HV-polarization, green is C-band VV-polarization and blue is the ratio of C-band VV to C-band HV. Blue areas are smooth, and yellow areas are rock out-crops with varying amounts of snow and vegetation. Crowley Lake is in the foreground, and Highway 395 crosses in the middle of the image. Mammoth Mountain is shown in the upper right. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  14. Space Radar Image of Central African Gorilla Habitat

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  15. X-SAR as high-performance interferometric SAR

    NASA Astrophysics Data System (ADS)

    Werner, Marian U.; Schandl, Josef

    1995-11-01

    In April and October 1994 the X-SAR radar has been flown twice onboard the Space Shuttle, as part of the Space Radar Laboratory (SRL-1 and SRL-2). This radar payload is the first synthetic aperture radar (SAR) system of its kind in space, with three frequencies, multi- polarization, variable incidence angle and variable modes of operation. SIR-C/X-SAR, the new generation of imaging microwave remote sensing sensors from space, demonstrated successfully repeat pass interferometry in all three frequencies with a one day repeat as well as a six month repeat orbit. The major problems with the repeat orbit interferometry are the temporal target decorrelation, unsuitable baseline and different squint angles for the two passes to be processed. Therefore, for the third mission of the Space Radar Lab which shall be called SRTM (shuttle radar topographic mapper), single pass interferometry with a second receive antenna is proposed to generate a topographic map of all land surfaces between +60 degrees and -56 degrees latitude. X-SAR's 12 meter long and 40 cm wide main transmit and receive antenna is mounted directly to a tiltable part of the SIR-C antenna truss structure in the Shuttle cargo bay. The second receive antenna is 6 meters long and is mounted together with the second C-band antenna to a 31 meter long deployable boom structure perpendicular to the velocity direction to build the baseline. X-SAR is not capable of operating in a scan SAR model like SIR-C to allow continuous coverage, but will operate in a high resolution mode with a swath width of 30 - 35 km. The engineering design of the interferometric configuration for X-SAR, the requirement specifications, and the predicted performance as well as the mission operation aspects are described in this paper. SIR-C/X- SAR is a cooperative project. The SIR-C instrument was developed by NASA's Jet Propulsion Laboratory (JPL). The X-band radar (X-SAR) was developed by the Dornier and Alenia Spazio Companies for the German

  16. North Central Thailand

    NASA Technical Reports Server (NTRS)

    1998-01-01

    NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  17. Space Radar Image of Raco Biomass Map

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This biomass map of the Raco, Michigan, area was produced from data acquired by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) onboard space shuttle Endeavour. Biomass is the amount of plant material on an area of Earth's surface. Radar can directly sense the quantity and organizational structure of the woody biomass in the forest. Science team members at the University of Michigan used the radar data to estimate the standing biomass for this Raco site in the Upper Peninsula of Michigan. Detailed surveys of 70 forest stands will be used to assess the accuracy of these techniques. The seasonal growth of terrestrial plants, and forests in particular, leads to the temporary storage of large amounts of carbon, which could directly affect changes in global climate. In order to accurately predict future global change, scientists need detailed information about current distribution of vegetation types and the amount of biomass present around the globe. Optical techniques to determine net biomass are frustrated by chronic cloud-cover. Imaging radar can penetrate through cloud-cover with negligible signal losses. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German

  18. Space Radar Image of Niya ruins, Taklamakan desert

    NASA Technical Reports Server (NTRS)

    1999-01-01

    human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstaltfuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  19. Space Radar Image of Colima Volcano, Jalisco, Mexico

    NASA Technical Reports Server (NTRS)

    1994-01-01

    and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  20. Space Radar Image of Hong Kong, China

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This is an X-SAR image spanning an area of approximately 20 kilometers by 40 kilometers (12 miles by 25 miles) of the island of Hong Kong, the Kowloon Peninsula and the new territories in southern China, taken by the imaging radar on board the space shuttle Endeavour on October 4, 1994. North is toward the top left corner of the image. The Kaitak Airport runway on Kowloon Peninsula (center right of image) was built on reclaimed land and extends almost 3 kilometers (nearly 2 miles) into Victoria Harbor. To the south of the harbor lies the island of Hong Kong. The bright areas around the harbor are the major residential and business districts. Housing more than six million residents, Hong Kong is the most densely populated area in the world. The large number of objects visible in the harbor and surrounding waters are a variety of sea-going vessels, anchored in one of the busiest seaports in the Far East. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in

  1. IDIS Small Bodies and Dust Node

    NASA Astrophysics Data System (ADS)

    de Sanctis, M. C.; Capria, M. T.; Carraro, F.; Fonte, S.; Giacomini, L.; Turrini, D.

    2009-04-01

    The EuroPlaNet information service provides access to lists of researchers, laboratories and data archives relevant to many aspects of planetary and space physics. Information can be accessed through EuroPlaNet website or, for advanced searches, via web-services available at the different thematic nodes. The goal of IDIS is to provide easy-to-use access to resources like people, laboratories, modeling activities and data archives related to planetary sciences. The development of IDIS is an international effort started under the European Commission's 6th Framework Programme and which will expand its capabilities during the 7th Framework Programme, as part of the Capacities Specific Programme/Research Infrastructures. IDIS is complemented by a set of other EuroPlaNet web-services maintained under the responsibility of separate institutions. Each activity maintains its own web-portal with cross-links pointing to the other elements of EuroPlaNet. General access is provided via the EuroPlaNet Homepage. IDIS is not a repository of original data but rather supports the access to various data sources. The final goal of IDIS is to provide Virtual Observatory tools for the access to data from laboratory measurements and ground- and spaced-based observations to modeling results, allowing the combination of as divergent data sources as feasible. IDIS is built around four scientific nodes located in different European countries. Each node deals with a subset of the disciplines related to planetary sciences and, working in cooperation with international experts in these fields, provides a wealth of information to the international planetary science community. The EuroPlaNet IDIS thematic node "Small Bodies and Dust Node" is hosted by the Istituto di Fisica dello Spazio Interplanetario and is established in close cooperation with the Istituto di Astrofisica Spaziale. Both these institutes are part of the Istituto Nazionale di Astrofisica (INAF). The IDIS Small Bodies and Dust

  2. Color Image of Death Valley, California from SIR-C

    NASA Technical Reports Server (NTRS)

    1999-01-01

    studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  3. ARTEMIS Orbit Raising Inflight Experience with Ion Propulsion

    NASA Astrophysics Data System (ADS)

    Killinger, Rainer

    2002-01-01

    To demonstrate and promote North/South station keeping (inclination control) using ion propulsion, ESA on July 12, 2001 onboard Ariane 510 launched its most advanced telecommunication satellite: ARTEMIS. Due to a launcher failure the satellite was injected into a useless too low elliptic orbit. The ARTEMIS mission was salvaged by the ALTEL/Astrium/ESA team at Telespazio (Fucino) using in novel modes of operation the on-board chemical and ion propulsion systems provided by Astrium. Using the chemical propulsion system provided by Astrium GmbH - Lampoldshausen - the inital orbit, having an apogee of half the targeted altitude. was quickly upgraded to a safe circular parking orbit at 31000 km altitude. The Liquid Apogee Engine was fired in total 8 times to achieve perigee as well as apogee raising. The final orbit raising to geostationary altitude is being performed by means of the ion propulsion system (IPP) applied in a newly designed spacecraft attitude control mode. Alenia Spazio and Astrium, in close cooperation, quickly redesigned all control and data handling software modules affected since the original spacecraft configuration was designed for inclination control only and not to generate thrust with the ion engines in a direction tangential to the orbit. The flexibility of the IPP system consisting of 4 thruster assemblies, provided in its totality by Astrium including the 2 alignment mechanisms for precision thrust direction control, had proven invaluable. To demonstrate the technologies available in Europe and to enhanced reliability, Astrium implemented two different technologies: a Kaufmann type system (EITA) provided by Astrium Ltd. - Portsmouth, and a Radiofrequency Ion Thruster Assembly (RITA) provided by Astrium GmbH - Ottobrunn. Two ion engines of different technology were mounted side by side on one ITAM (Ion Thruster Alignment Mechanism) provided by Austrian Aerospace. This paper, after a brief description of the ion propulsion system, will

  4. Space Radar Image of San Francisco, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V. (DLR), the major partner in science, operations and data processing of X-SAR.

  5. Radar Image of Galapagos Island

    NASA Technical Reports Server (NTRS)

    1994-01-01

    which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  6. Space Radar Image Isla Isabela in 3-D

    NASA Technical Reports Server (NTRS)

    1999-01-01

    , complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  7. A project for a solar sail propelled spaceship

    NASA Astrophysics Data System (ADS)

    Bevilacqua, Franco; Cesare, Stefano

    1994-02-01

    (today Alenia Spazio) produced the contest-winning solar sail design among the European countries.

  8. MPLM On-Orbit Interface Dynamic Flexibility Modal Test

    NASA Technical Reports Server (NTRS)

    Bookout, Paul S.; Rodriguez, Pedro I.; Tinson, Ian; Fleming, Paolo

    2001-01-01

    Now that the International Space Station (ISS) is being constructed, payload developers have to not only verify the Shuttle-to-payload interface, but also the interfaces their payload will have with the ISS. The Multi Purpose Logistic Module (MPLM) being designed and built by Alenia Spazio in Torino, Italy is one such payload. The MPLM is the primary carrier for the ISS Payload Racks, Re-supply Stowage Racks, and the Resupply Stowage Platforms to re-supply the ISS with food, water, experiments, maintenance equipment and etc. During the development of the MPLM there was no requirement for verification of the on-orbit interfaces with the ISS. When this oversight was discovered, all the dynamic test stands had already been disassembled. A method was needed that would not require an extensive testing stand and could be completed in a short amount of time. The residual flexibility testing technique was chosen. The residual flexibility modal testing method consists of measuring the free-free natural frequencies and mode shapes along with the interface frequency response functions (FRF's). Analytically, the residual flexibility method has been investigated in detail by, MacNeal, Martinez, Carne, and Miller, and Rubin, but has not been implemented extensively for model correlation due to difficulties in data acquisition. In recent years improvement of data acquisition equipment has made possible the implementation of the residual flexibility method as in Admire, Tinker, and Ivey, and Klosterman and Lemon. The residual flexibility modal testing technique is applicable to a structure with distinct points (DOF) of contact with its environment, such as the MPLM-to-Station interface through the Common Berthing Mechanism (CBM). The CBM is bolted to a flange on the forward cone of the MPLM. During the fixed base test (to verify Shuttle interfaces) some data was gathered on the forward cone panels. Even though there was some data on the forward cones, an additional modal test was

  9. The Mercury Thermal Environment As A Design Driver and A Scientific Objective of The Bepicolombo Mission

    NASA Astrophysics Data System (ADS)

    Perotto, V.; Malosti, T.; Martino, R.; Briccarello, M.; Anselmi, A.

    The thermal environment of Mercury is extremely severe and a strong design driver for any mission to the planet. The main factors are the large amount of energy both di- rectly received from the sun and reflected/re-emitted from the planet, and the variation of such energy with time. The total thermal flux received by an object in orbit or on the surface of Mercury is a combination of the above-mentioned contributions, weighted according to the orbit characteristics, or the morphology of the surface. For a lander mission, the problems are compounded by the uncertainty in the a-priori knowledge of the surface properties and morphology. The thermal design of the orbiting and land- ing elements of the BepiColombo mission has a major role in the Definition Study being carried out under ESA contract by a team led by Alenia Spazio. The project en- compasses a spacecraft in low, near-circular, polar orbit (Mercury Planetary Orbiter, MPO), a spacecraft in high-eccentricity, polar orbit (Mercury Magnetospheric Orbiter, MMO, provided by ISAS, Japan) and a lander (Mercury Surface Element, MSE). The approach to a feasible mission design must rely on several provisions. For the orbiting elements, the orientation of the orbit plane with respect to the line of apsides of the or- bit of Mercury is found to have a major effect on the achievable orbiter temperatures. The spacecraft configuration, and its attitude with respect to the planet and the sun, drive the accommodation of the scientific instruments. Once the optimal orientation, attitude and configuration are determined, specific thermal control solutions must be elaborated, to maintain all components including the instruments in the required tem- perature range. The objective is maximizing the scientific return under constraints such as the available on-board resources and the project budget. A major outcome of the study so far has been the specification of requirements for improved thermal con- trol technologies, which are

  10. Hazard and Operability Study (HAZOP) Rocky Mountain Arsenal, Basin F liquid Incineration, Task IRA 2, Version 3.0.

    DTIC Science & Technology

    1992-07-01

    LOSS OF WA TER FEED TO GUENCIR IU CLO•MP, LOUS Of INSTRURMET All TAMA ; SYSTEM SIRJTOWN CIENTS: ACTION: 3 *I8DIT NOTS: I ••.UNO. lOA 16/13/2 NAZARD AND...Lilly also redesigned the nozzles I in house to cut the replacement cost. Lilly has installed a clinker grinder beneath the quench tank to grind up

  11. Operation PLUMBBOB. Operational Summary

    DTIC Science & Technology

    1979-10-01

    in the pre- 24 cursor region to a fast rising front beyond that region, mine response tended to increase; and (5) that the three influence-type...3 T-Cjl2 V.C.O, LZ EeKo? o OBJECTIVE AREA PLAN ABB ^(L? Holtl Mtlieopter Londing Zonts LZ Brovo-jJ^ Forword Ob» rioop a VIP ObMrv«r Uno Pton’A

  12. The Support of Air Operations Under Extreme Hot and Cold Weather Conditions (Les Operatons Aeriennes en Environnement Extreme Chaud/Froid)

    DTIC Science & Technology

    1993-10-01

    provide pilotage infoaon to the to 16 personnel between the Antarctic two British Antarctic Survey research and the Falkland Wlands, considerably...diminui~o. L’utllisation d’un ontraino un effet do sorre. Enfin lo systbme do climatisation indivduoello ost rayonnement do Idlectroniquo do bord ...sodt uno pormottre tour utilisation A bord dos avions do arni~ioration do la climatisation dos a6ronefs, combat. soft rutilisation cruno

  13. Price of Fairness in Kidney Exchange

    DTIC Science & Technology

    2014-05-01

    patients in need of a new kidney. Fielded exchanges typi- cally match under utilitarian or near- utilitarian rules; this approach marginalizes certain...empirically explore the tradeoff between matching more hard-to- match patients and the overall utility of a utilitarian matching, on real data from the UNOS...under utilitarian or near- utilitarian rules; this approach marginalizes certain classes of patients. In this paper, we focus on improving access to

  14. Conference Proceedings of Machine Intelligence for Aerospace Electronic Systems Held in Lisbon, Portugal on 13-16 May 1991 (L’Intelligence Artificielle dans les Systemes Electroniques Aerospatiaux)

    DTIC Science & Technology

    1991-09-01

    oib lA est & l𔄀tude on distingue: I’alignement des capteurs , le fusionnement des donn&es et des informations, le commandement, le contr6le, les...prisont6 sun Ia avoc une grand. pricision, planche eat nicossaire. Outre les capteurs "classiques", des capteurs de nouvelle - uno cornilation...Impulsion par Impulsion giniration (Interfiromitro large bande ontro capteurs , basie sur lo temps instantanie, IFM, Analyse spectral. tempo- d’arriv6e des

  15. Gaining and Sustaining TEL in a 1:1 Laptop Initiative: Possibilities and Challenges for Teachers and Students

    ERIC Educational Resources Information Center

    Lindqvist, Marcia J. P. Håkansson

    2015-01-01

    The uptake and use of digital technologies is studied in Unos Umeå, a joint one-to-one (1:1) research project between Umeå University and the municipality of Umeå in Sweden. This article presents the results of the third phase of the classroom work with laptops. Using the ecology of resources model (Luckin, 2010), these possibilities and…

  16. Endogenous 6-Hydroxylmelatonin Excretion and Subsequent Risk of Breast Cancer: A Prospective Study

    DTIC Science & Technology

    2006-03-01

    D, Zarini E. Progettazione di uno studio prospettico con banca biologica. Epidemiologia e Prevenzione 46:359-363; 1991. Bojkowski CJ. Arendt J...melatonin levels and urinary 6-hydroxymelatonin excretion. Clinica Chimica Acta. 150(3):221-5, 1985. Mawson AR. Breast cancer in female flight...computer program to calculate expected cases in a dynamic cohort. Epidemiologia e Prevenzione.18(60):164-9; 1994. Muti P, Celentano E, Panico S

  17. Endogenous 6-Hydroxymelatonin Excretion and Subsequent Risk of Breast Cancer: A Prospective Study

    DTIC Science & Technology

    2007-03-01

    Zarini E. Progettazione di uno studio prospettico con banca biologica. Epidemiologia e Prevenzione 46:359-363; 1991. Bojkowski CJ. Arendt J. Shih...levels and urinary 6-hydroxymelatonin excretion. Clinica Chimica Acta. 150(3):221-5, 1985. Mawson AR. Breast cancer in female flight attendants...program to calculate expected cases in a dynamic cohort. Epidemiologia e Prevenzione.18(60):164-9; 1994. Muti P, Celentano E, Panico S, Berrino F

  18. The Conference Proceedings of the 1997 Air Transport Research Group (ATRG) of the WCTR Society. Volume 1

    NASA Technical Reports Server (NTRS)

    Oum, Tae Hoon (Editor); Bowen, Brent D. (Editor)

    1997-01-01

    The UNO Aviation Institute has published the 1997 Proceedings of the Air Transport Research Group of the World Conference on Transportation Research (WCTR) Society. Items published in this three volume, seven monograph series were presented at the triennial ATRG Conference held at the University of British Columbia, June 25-27, 1997. A wide variety of policy issues are discussed including the following: open- skies agreements, liberalization, globalization, airline competition, airport performance, pricing, hubs, and safety, among others.

  19. Review of Rate Data for Reactions of Interest in HF and DF Lasers.

    DTIC Science & Technology

    1982-10-25

    by Bott and Heidner. Since k2 5 has a positive activation energy , it should be an even *smaller contribution to the total removal rate at 200 K if...The computer codes such as RESALE give reasonable agreement with experimental measurements of total power or energy but do not predict spectral output...Chemical lasers Vibrational relaxation Energy transfer Rotational relaxation Xt1ASTRACT (Contums dma d uide Unoe en~wd Iduhp op Week mabe)-’Chemical

  20. Flow Velocity and Angularity Measurements in the FDL Transonic Gasdynamic Facility and Self-Adaptive Wall Wind Tunnels with a Laser Transit Anemometer

    DTIC Science & Technology

    1981-08-01

    270.83 fRT 18F579T FýF AH 1RTEB/S 2 UNO215 2D)6F 13DT ETA 0•,5 Figura 24. Example of an Angle Search in the SAW Tunnel: Data Versus Angle with 5 Second...provided later in other publica - 0.0 1.00 2.00 tions. In this section we will briefly review the supersonic measurements made with the prototype sys

  1. [Experience in kidney transplantation without blood transfusion: kidney transplantation transfusion-free in Jehovah's Witnesses. First communication in Mexico].

    PubMed

    Hernández-Navarrete, Liliana Stefany; Hernández-Jiménez, Jesús Diego; Jiménez-López, Luis Alfredo; Budar-Fernández, Luis Filadelfo; Méndez-López, Marco Tulio; Martínez-Mier, Gustavo

    2013-01-01

    Antecedentes: los Testigos de Jehová rechazan la transfusión sanguínea, pero aceptan el trasplante de órganos, albúmina, inmunoglobulina, vacunas y factores de coagulación. Casos clínicos: comunicamos tres casos de pacientes (dos masculinos y uno femenino) a quienes se realizó trasplante renal en Testigos de Jehová sin transfusión sanguínea, con edad promedio de 31.33 años e índice de masa corporal promedio de 20.99 kg/m(2). Los tres pacientes recibieron diálisis peritoneal pre trasplante por un promedio de 52.3 meses. Se realizaron dos trasplantes de donante vivo y uno de fallecido, con isquemia fría de 23 horas. Los donantes fueron dos femeninos y uno masculino, con edad promedio de 34.33 años. Los tres pacientes recibieron eritropoyetina y hierro dextrán pretrasplante y en el transoperatorio se utilizó una máquina de recuperación celular. Las concentraciones de hemoglobina, hematócrito, glóbulos rojos, creatinina sérica y filtración glomerular a 24 meses postrasplante permanecieron estables. La inducción se realizó con basiliximab y la inmunosupresión inicial con inhibidores de calcineurina. Uno de los pacientes tuvo como complicación un hematoma perirrenal que ameritó reintervención a los 20 días postrasplante. A 5, 26 y 36 meses postrasplante los tres pacientes están vivos y con injerto funcional. Conclusión: es posible realizar trasplantes renales sin transfusión sanguínea en Testigos de Jehová, con supervivencia global aceptable y sin episodios de rechazo agudo.

  2. The Enhancement of Metallic Silver Monomer Evaporation by the Adhesion of Polar Molecules to Silver Nanocluster Ions

    DTIC Science & Technology

    1994-09-21

    POLAR MOLECULES TO SILVER NANOCLUSTER IONS by Clifton Fagerquist, Dilip K. Sensharma, Angel Rubio, Marvin L. Cohen and M. A. EI-Sayed Prepared for...MOLECULES TO SILVER NANOCLUSTER IONS Clifton K. Fagerquist#, Dilip K. Sensharma and Mostafa A. E1-Sayed* Department of Chemistry and Biochemistry...CZVERED 4. TITLE AND SUBTITLE S. .:UNO:NG :.UMBERS Tl1E ENANCDEET OF METALLIC SILVER MONOMER EVAPORATION .- 1 9Y THE ADHESION OF POLAR MOLECULES TO SILVER

  3. Renal protection by a soy diet in obese Zucker rats is associated with restoration of nitric oxide generation.

    PubMed

    Trujillo, Joyce; Ramírez, Victoria; Pérez, Jazmín; Torre-Villalvazo, Ivan; Torres, Nimbe; Tovar, Armando R; Muñoz, Rosa M; Uribe, Norma; Gamba, Gerardo; Bobadilla, Norma A

    2005-01-01

    The obese Zucker rat is a valuable model for studying kidney disease associated with obesity and diabetes. Previous studies have shown that substitution of animal protein with soy ameliorates the progression of renal disease. To explore the participation of nitric oxide (NO) and caveolin-1 in this protective effect, we evaluated proteinuria, creatinine clearance, renal structural lesions, nitrites and nitrates urinary excretion (UNO(2)(-)/NO(3)V), and mRNA and protein levels of neuronal NO synthase (nNOS), endothelial NOS (eNOS), and caveolin-1 in lean and fatty Zucker rats fed with 20% casein or soy protein diet. After 160 days of feeding with casein, fatty Zucker rats developed renal insufficiency, progressive proteinuria, and renal structural lesions; these alterations were associated with an important fall of UNO(2)(-)/NO(3)V, changes in nNOS and eNOS mRNA levels, together with increased amount of eNOS and caveolin-1 present in plasma membrane proteins of the kidney. In fatty Zucker rats fed with soy, we observed that soy diet improved renal function, UNO(2)(-)/NO(3)V, and proteinuria and reduced glomerulosclerosis, tubular dilation, intersticial fibrosis, and extracapilar proliferation. Renal protection was associated with reduction of caveolin-1 and eNOS in renal plasma membrane proteins. In conclusion, our results suggest that renal protective effect of soy protein appears to be mediated by improvement of NO generation and pointed out to caveolin-1 overexpression as a potential pathophysiological mechanism in renal disease.

  4. The University of Nebraska at Omaha Center for Space Data Use in Teaching and Learning

    NASA Technical Reports Server (NTRS)

    Grandgenett, Neal

    2000-01-01

    Within the context of innovative coursework and other educational activities, we are proposing the establishment of a University of Nebraska at Omaha (UNO) Center for the Use of Space Data in Teaching and Learning. This Center will provide an exciting and motivating process for educators at all levels to become involved in professional development and training which engages real life applications of mathematics, science, and technology. The Center will facilitate innovative courses (including online and distance education formats), systematic degree programs, classroom research initiatives, new instructional methods and tools, engaging curriculum materials, and various symposiums. It will involve the active participation of several Departments and Colleges on the UNO campus and be well integrated into the campus environment. It will have a direct impact on pre-service and in-service educators, the K12 (kindergarten through 12th grade) students that they teach, and other college students of various science, mathematics, and technology related disciplines, in which they share coursework. It is our belief that there are many exciting opportunities represented by space data and imagery, as a context for engaging mathematics, science, and technology education. The UNO Center for Space Data Use in Teaching and Learning being proposed in this document will encompass a comprehensive training and dissemination strategy that targets the improvement of K-12 education, through changes in the undergraduate and graduate preparation of teachers in science, mathematics and technology education.

  5. Nitric oxide production in the exhaled air of patients with pulmonary tuberculosis in relation to HIV co-infection

    PubMed Central

    Idh, Jonna; Westman, Anna; Elias, Daniel; Moges, Feleke; Getachew, Assefa; Gelaw, Aschalew; Sundqvist, Tommy; Forslund, Tony; Alemu, Addis; Ayele, Belete; Diro, Ermias; Melese, Endalkachew; Wondmikun, Yared; Britton, Sven; Stendahl, Olle; Schön, Thomas

    2008-01-01

    Background Nitric oxide (NO) is essential for host defense in rodents, but the role of NO during tuberculosis (TB) in man remains controversial. However, earlier observations that arginine supplementation facilitates anti-TB treatment, supports the hypothesis that NO is important in the host defense against TB. Local production of NO measured in fractional exhaled air (FeNO) in TB patients with and without HIV co-infection has not been reported previously. Thus, our aim was to investigate levels of FeNO in relation to clinical symptoms and urinary NO metabolites (uNO). Methods In a cross sectional study, FeNO and uNO were measured and clinical symptoms, chest x-ray, together with serum levels of arginine, tumor necrosis factor alpha (TNF-alpha) and interleukin 12 (IL-12) were evaluated in sputum smear positive TB patients (HIV+/TB, n = 36, HIV-/TB, n = 59), their household contacts (n = 17) and blood donors (n = 46) from Gondar University Hospital, Ethiopia. Results The proportion of HIV-/TB patients with an increased FeNO level (> 25 ppb) was significantly higher as compared to HIV+/TB patients, but HIV+/TB patients had significantly higher uNO than HIV-/TB patients. HIV+ and HIV-/TB patients both had lower levels of FeNO compared to blood donors and household contacts. The highest levels of both uNO and FeNO were found in household contacts. Less advanced findings on chest x-ray, as well as higher sedimentation rate were observed in HIV+/TB patients as compared to HIV-/TB patients. However, no significant correlation was found between FeNO and uNO, chest x-ray grading, clinical symptoms, TNF-alpha, IL-12, arginine levels or sedimentation rate. Conclusion In both HIV negative and HIV co infected TB patients, low levels of exhaled NO compared to blood donors and household were observed. Future studies are needed to confirm whether low levels of exhaled NO could be a risk factor in acquiring TB and the relative importance of NO in human TB. PMID:18950489

  6. Controlled rephasing of single spin-waves in a quantum memory based on cold atoms

    NASA Astrophysics Data System (ADS)

    Farrera, Pau; Albrecht, Boris; Heinze, Georg; Cristiani, Matteo; de Riedmatten, Hugues; Quantum Photonics With Solids; Atoms Team

    2015-05-01

    Quantum memories for light allow a reversible transfer of quantum information between photons and long lived matter quantum bits. In atomic ensembles, this information is commonly stored in the form of single collective spin excitations (spin-waves). In this work we demonstrate that we can actively control the dephasing of the spin-waves created in a quantum memory based on a cold Rb87 atomic ensemble. The control is provided by an external magnetic field gradient, which induces an inhomogeneous broadening of the atomic hyperfine levels. We show that acting on this gradient allows to control the dephasing of individual spin-waves and to induce later a rephasing. The spin-waves are then mapped into single photons, and we demonstrate experimentally that the active rephasing preserves the sub-Poissonian statistics of the retrieved photons. Finally we show that this rephasing control enables the creation and storage of multiple spin-waves in different temporal modes, which can be selectively readout. This is an important step towards the implementation of a functional temporally multiplexed quantum memory for quantum repeaters. We acknowledge support from the ERC starting grant, the Spanish Ministry of Economy and Competitiveness, the Fondo Europeo de Desarrollo Regional, and the International PhD- fellowship program ``la Caixa''-Severo Ochoa @ICFO.

  7. [CONSISTENCY OF MINI NUTRITIONAL ASSESSMENT TO IDENTIFY SARCOPENIA IN OLDER ADULTS IN NURSING HOMES IN BOGOTA, COLOMBIA].

    PubMed

    Díaz Muñoz, Gustavo Alfonso; Cárdenas Zuluaga, Diana María; Mesa Jimenez, Alfonso

    2015-07-01

    Introducción: la desnutrición y la sarcopenia son de alta prevalencia en el adulto mayor, compartiendo mecanismos fisiológicos y desenlaces adversos para la salud. Objetivos: cuantificar la consistencia del MNA con el diagnóstico de sarcopenia en el adulto mayor institucionalizado. Métodos: estudio transversal de consistencia, en 4 residencias geriátricas de Bogotá. El tamizaje y la valoración nutricional se hicieron con la forma larga Mini Nutritional Assessment; el diagnóstico de sarcopenia se hizo con el algoritmo y puntos de corte del Consenso Europeo (EWGSOP). Análisis estadístico: Ji2 de Pearson, U de Mann-Whitney y coeficiente kappa de Cohen. Resultados y discusión: participaron 108 personas, 62% mujeres, con una edad promedio de 80,4 años (DE 7,7). La prevalencia de sarcopenia, riesgo de desnutrición y desnutrición fueron del 38,9%, 33,3% y 2,8%, respectivamente. La concordancia del MNA con el diagnóstico de sarcopenia fue leve (kappa 0,1908 IC95% 0,0025 a 0,3791; p < 0.05) Conclusión: la leve concordancia del MNA para identificar la sarcopenia sugiere que no es una herramienta adecuada para el diagnóstico de sarcopenia en los adultos mayores institucionalizados.

  8. Metabolic potential of the organic-solvent tolerant Pseudomonas putida DOT-T1E deduced from its annotated genome

    PubMed Central

    Udaondo, Zulema; Molina, Lazaro; Daniels, Craig; Gómez, Manuel J; Molina-Henares, María A; Matilla, Miguel A; Roca, Amalia; Fernández, Matilde; Duque, Estrella; Segura, Ana; Ramos, Juan Luis

    2013-01-01

    Summary Pseudomonas putida DOT-T1E is an organic solvent tolerant strain capable of degrading aromatic hydrocarbons. Here we report the DOT-T1E genomic sequence (6 394 153 bp) and its metabolic atlas based on the classification of enzyme activities. The genome encodes for at least 1751 enzymatic reactions that account for the known pattern of C, N, P and S utilization by this strain. Based on the potential of this strain to thrive in the presence of organic solvents and the subclasses of enzymes encoded in the genome, its metabolic map can be drawn and a number of potential biotransformation reactions can be deduced. This information may prove useful for adapting desired reactions to create value-added products. This bioengineering potential may be realized via direct transformation of substrates, or may require genetic engineering to block an existing pathway, or to re-organize operons and genes, as well as possibly requiring the recruitment of enzymes from other sources to achieve the desired transformation. Funding Information Work in our laboratory was supported by Fondo Social Europeo and Fondos FEDER from the European Union, through several projects (BIO2010-17227, Consolider-Ingenio CSD2007-00005, Excelencia 2007 CVI-3010, Excelencia 2011 CVI-7391 and EXPLORA BIO2011-12776-E). PMID:23815283

  9. Artist meets computer

    NASA Astrophysics Data System (ADS)

    Faggin, Marzia

    1997-04-01

    I would like to share my experience ofusing the computer for creating art. I am a graphic designer originally trained without any exposure to the computer. I graduated in July of 1994 from a four-year curriculum of graphic design at the Istituto Europeo di Design in Milan Italy. Italy is famous for its excellent design capability. Art and beauty influence the life ofnearly every Italian. Everywhere you look on the streets there is art from grandiose architecture to the displays in shop windows. A keen esthetic sense and a search and appreciation for quality permeate all aspects of Italian life, manifesting in the way people cut their hair, the style ofthe clothes and how furniture and everyday objects are designed. Italian taste is fine-tuned to the appreciation ofrefined textiles and quality materials are often enhanced by simple design. The Italian culture has a long history ofexcellent artisanship and good craftsmanship is highly appreciated. Gadgets have never been popular in Italian society. Gadgets are considered useless objects which add nothing to a person's life, and since they cost money they are actually viewed as a waste. The same is true for food, exception made in the big cities filled with tourists, fast food chains have never survived. Genuine and simple food is what people truly desire. A typical Italian sandwich, for example, is minimalist, the essential ingredients are left alone without additional sauces because if something is delicious by itselfwhy would anyone want to disgnise its taste?

  10. [OVERWEIGHT AND OBESITY IN CHILDREN AND ADOLESCENTS IN FULL TIME SCHOOLS MORELOS, MÉXICO].

    PubMed

    González Rosendo, Guillermina; Villanueva Sánchez, Javier; Alcantar Rodríguez, Victor Eduardo; Quintero Gutiérrez, Adrián Guillermo

    2015-12-01

    Introducción: es común que los escolares en México presenten bajos consumos de algunos nutrimentos, y elevados consumos de energía total, grasas y sodio; también es frecuente que su actividad física sea insuficiente, lo que propicia la presencia de sobrepeso y obesidad. Objetivo: el propósito de este estudio fue identificar la prevalencia de sobrepeso y obesidad en los alumnos de escuelas de tiempo completo del estado de Morelos (México). Sujetos y métodos: estudio transversal en 30.966 alumnos de 3 a 15 años, asistentes a 186 escuelas. El estado nutricional se obtuvo a través del Índice de Masa Corporal, considerando la edad y el género; el peso se midió con básculas SECA 813 y la talla con estadímetros SECA 213; se utilizaron patrones de referencia internacionales. Resultados: de 36.482 niños y niñas censados, se midió a 30.966 (84,9%) que asistieron el día de visita. La prevalencia global de bajo peso se aproximó al 8% y la prevalencia conjunta de sobrepeso y obesidad superó el 25%. Fueron más altas las prevalencias de bajo peso y obesidad en los hombres. Conclusiones: uno de cada 12 niños tiene bajo peso; uno de cada cuatro, sobrepeso y uno de cada nueve, obesidad. La población masculina es más vulnerable a padecer consecuencias por deficiencias y excesos nutricionales. Son necesarios estudios específicos para diferenciar y atender la obesidad de tipo primario y los riesgos asociados, para definir acciones futuras.

  11. Managerial and Organizational Determinants of Efficiency in Research Teams (Social Sciences)

    DTIC Science & Technology

    1984-05-01

    to get more funding to finance field travel and field equipment. Of course, individual teams joined this laboratory on their own will in order to...sur 1 ’ entreprise multi- nationale (CEREM) Universlt6 de Paris X, 2 rue de Rouen -92001 Nanterre CUdex P’LojeA4ew Raymond COURBIS Groupe d’analyses... financement ; 40,4 ?% uno participation fr~quente; 32,5 9o participation i tour do r~lo do tous los chorcheurs; 10,617c participation do taus los chercheurs aux

  12. Finite-volume effects and the electromagnetic contributions to kaon and pion masses

    SciTech Connect

    Basak, Subhasish; Bazavov, Alexei; Bernard, Claude; Detar, Carleton; Freeland, Elizabeth; Foley, Justin; Gottlieb, Steven; Heller, Urs M.; Komijani, Javad; Laiho, Jack; Levkova, Ludmila; Osborn, James; Sugar, Robert; Torok, Aaron; Toussaint, Doug; Van de Water, Ruth S.; Zhou, Ran

    2014-09-25

    We report on the MILC Collaboration calculation of electromagnetic effects on light pseudoscalar mesons. The simulations employ asqtad staggered dynamical quarks in QCD plus quenched photons, with lattice spacings varying from 0.12 to 0.06 fm. Finite volume corrections for the MILC realization of lattice electrodynamics have been calculated in chiral perturbation theory and applied to the lattice data. These corrections differ from those calculated by Hayakawa and Uno because our treatment of zero modes differs from theirs. Updated results for the corrections to "Dashen's theorem" are presented.

  13. An Arduino Investigation of the RC Circuit

    NASA Astrophysics Data System (ADS)

    Galeriu, Calin; Letson, Cheryl; Esper, Geoffrey

    2015-05-01

    The experimental investigation of the charging or discharging of a capacitor through a resistor is of fundamental importance to the study of electricity. Students taking the Physics SAT or the AP Physics C: Electricity and Magnetism test have to prove their knowledge of time-varying behavior in RC circuits. While the classical experiment is done using a voltmeter and a stopwatch, this procedure is tedious and prone to human errors. We have developed an alternative procedure in which the voltage, the current, and the time are all measured electronically with the help of an Arduino Uno microcontroller board.

  14. [COMPARATIVE CHARACTERISTICS OF uNOS-POSITIVE STRUCTURES IN THE CNS OF SOME SPECIES OF CRUSTACEANS].

    PubMed

    Chertok, V M; Kotsyuba, E P

    2015-01-01

    We conducted a comparative study of NO-ergic system in the CNS of 10 species of crustaceans subclass Malacostraca, belonging to orders Stomatopoda and Decapoda, with a common habitat in Ussuri Bay (Sea of Japan). Both similar characteristics and differences in content and distribution of universal NO-synthase (uNOS) were revealed in homologous parts of the brain and ventral nerve cord of the investigated species of crustaceans. We discuss the involvement of nitric oxide in the regulation of physiological functions of decapod crustaceans and its role in the processes of adaptation to the environmental conditions.

  15. NASA Nebraska Space Grant 5 Year Proposal

    NASA Technical Reports Server (NTRS)

    Bowen, Brent D.; Vlasek, Karisa; Russell, Valerie; Woods, Sara; Webb, Cindy; Schaaf, Michaela; Vlasek, Scott; Wurdeman, Melissa; Lucas, Sarah; Tegeder, Amy

    2004-01-01

    The UNO Aviation Institute Monograph Series began in 1994 as a key component of the education outreach and information transfer missions of the Aviation Institute and the NASA Nebraska Space Grant & EPSCoR Programs. The series is an outlet for aviation materials to be indexed and disseminated through an efficient medium. Publications are welcome in all aspects of aviation. Publication formats may include, but are not limited to, conference proceedings, bibliographies, research reports, manuals, technical reports, and other documents that should be archived and indexed for future reference by the aviation and world wide communities.

  16. Notes on the Operations of 21 Army Group. 6 June 1944 - 5 May 1945

    DTIC Science & Technology

    1945-09-01

    FALA.ISE gap, tho number of divs destroyed since D a:ty ,1. mounted to fifteen 1,vi th another four ano. a half cut off in BRITTAI’n. Very heavy losses...those at FLUSHIN’G. Beaches ani d.unos’ ana. their exits Yvere tho,_ oughly mino:l. On the islan:i there wore 25 active c()ast btys mounting four or...RSPITE and the monitors ROBERTS and .. EREBUS ~ opened fire. Shortly before 0900 hours, the close support squadpon deployed, and at 0900 h0urs battle

  17. Hydrides and Borohydrides of Light Elements

    DTIC Science & Technology

    1947-12-04

    puriod of thrco minutes. vin~ a e1do arn, qddition flasks to a solution of aluminum bromide dicthylothorato in tnctra hyAroffurcen. Unfortunately the...Hydrido wdith Alicy1 Compounds of the Elomotse-- ’h(; work pri.so-nu uno tis heading rcprosots tho i~rut p~ irt R of 50sytom~tie atudy of the...4.03 nolos wrAe distillod into a reaction flask cont?,ining 6.33 uim9loa of’lithkium aliiminum hy~rido) in othcr solution, The z,,xtur.. w:a nllowad to w

  18. The Conference Proceedings of the 2003 Air Transport Research Society (ATRS) World Conference, Volume 2

    NASA Technical Reports Server (NTRS)

    Bowen, Brent (Editor); Gudmundsson, Sveinn (Editor); Oum, Tae (Editor)

    2003-01-01

    The UNO Aviation Institute Monograph Series began in 1994 as a key component of the education outreach and information transfer missions of the Aviation Institute and the NASA Nebraska Space Grant & EPSCoR Programs. The series is an outlet for aviation materials to be indexed and disseminated through an efficient medium. Publications are welcome in all aspects of aviation. Publication formats may include, but are not limited to, conference proceedings, bibliographies, research reports, manuals, technical reports, and other documents that should be archived and indexed for future reference by the aviation and world wide communities.

  19. Aeronautics Education, Research, and Industry Alliance (AERIAL) Year 2 Report and Year 3 Proposal

    NASA Technical Reports Server (NTRS)

    Bowen, Brent D.; Box, Richard C.; Fink, Mary M.; Gogos, George; Lehrer, Henry R.; Narayanan, Ram M.; Nickerson, Jocelyn S.; Tarry, Scott E.; Vlasek, Karisa D.

    2003-01-01

    The UNO Aviation Institute Monograph Series began in 1994 as a key component of the education outreach and information transfer missions of the Aviation Institute and the NASA Nebraska Space Grant & EPSCoR Programs. The series is an outlet for aviation materials to be indexed and disseminated through an efficient medium. Publications are welcome in all aspects of aviation. Publication formats may include, but are not limited to, conference proceedings, bibliographies, research reports, manuals, technical reports, and other documents that should be archived and indexed for future reference by the aviation and world wide communities.

  20. How does parents' visual perception of their child's weight status affect their feeding style?

    PubMed

    Yilmaz, Resul; Erkorkmaz, Ünal; Ozcetin, Mustafa; Karaaslan, Erhan

    2013-01-01

    Introducción: El estilo de alimentación es uno de los factores prominentes que determina la ingesta de energía. Uno de los factores que influyen en el estilo de alimentación paterna es la percepción de los padres del estado de peso del niño. Objetivo: El propósito de este estudio fue evaluar la relación entre la percepción visual de la madre del estado de peso de su hijo y su estilo de alimentación. Método: Se realizó un estudio transversal con madres de 380 niños preescolares de 5 a 7 (6,14 años). Las puntuaciones de la percepción visual se midieron mediante unos dibujos y el estilo de alimentación materna se medió con el cuestionario validado “Parental Feeding Style Questionnaire”. Resultados: Las puntuaciones de las subescalas de las dimensiones de alimentación parental “alimentación emocional” y “animar a comer” eran bajas en niños con sobrepeso de acuerdo con la clasificación de la percepción visual. Las puntuaciones de las subescalas “alimentación emocional” y “control permisivo” eran estadísticamente distintas en los niños clasificados como correctamente percibidos e incorrectamente percibidos bajos por una mala percepción materna. Conclusión: Diversos estilos de alimentación se relacionaban con la percepción visual materna. El mejor abordaje para evitar la obesidad y el peso bajo podría estar en centrarse en conseguir una correcta percepción parental del estado de peso de sus hijos, mejorando así las habilidades paternas y conllevando la implantación de unos estilos de alimentación adecuados.

  1. Improvement of Combat Performance for Existing and Future Aircraft: Conference Proceedings of the Flight Mechanics Panel Symposium Held in Treviso, Italy on 14-17 April 1986.

    DTIC Science & Technology

    1986-12-01

    de prhsenter use Atude entreprise A l’ONERtA dapuis * 1979 C41 concernant un aysthae intfgr6 do coiandes de vol et de conduits de tir (IFFC) pour Is...conventionnelles era discuthe. L’inthr~t d’uno gouverne do force directs lattrale sera essaln6. 27-2 2. SYSTEME INTEiRE DiE COftANDES DE VOL ff DE...Made. dit do "pilotage par objectif" (P0) ais- pI ifl is ’exicutian de certaines manoeuvres exigeast us action coordosad. our les gouvernes , tache

  2. Proceedings of Symposium on Analysis and Detection of Explosives (3rd) Held in Mannheim-Neuostheim (Germany, F.R.) on 10-13 July 1989

    DTIC Science & Technology

    1989-07-13

    do l 𔄀jection dui bourrago, l 𔄀quilibre chimique est. rompu A uno temptraturo plus 6lovoa quo lorsque los grains do nitrate d’ammonium sont petits...been tested. The results from these analyses axe di~crutsed and the advantages cf the different methods are descrlý-,d. 1. INTRODUCTION HM! (Octahydro- l ...R.O. Keto V 12 ANALYSIS OF REACTION PRODUCTS OF PROPELLANTS 12-1 AND HIGH EXPLOSIVES F. Yolk V 13 FUMiES DE TIRS L -EXPERIENCE DU CERCHAR 13-1 AVEC UNE

  3. Note: Circuit design for direct current and alternating current electrochemical etching of scanning probe microscopy tips

    NASA Astrophysics Data System (ADS)

    Jobbins, Matthew M.; Raigoza, Annette F.; Kandel, S. Alex

    2012-03-01

    We present control circuits designed for electrochemically etching, reproducibly sharp STM probes. The design uses an Arduino UNO microcontroller to allow for both ac and dc operation, as well as a comparator driven shut-off that allows for etching to be stopped in 0.5-1 μs. The Arduino allows the instrument to be customized to suit a wide variety of potential applications without significant changes to hardware. Data is presented for coarse chemical etching of 80:20 platinum-iridium, tungsten, and nickel tips.

  4. PubMed

    Bellido, Diego; Bellido, Virginia

    2016-09-20

    El sobrepeso y la obesidad se definen como un depósito anormal o excesivo de grasa corporal. El aumento de su prevalencia en las últimas décadas lo convierte en uno de los principales problemas de salud pública que afecta a 42 millones de niños menores de 5 años en el mundo. Su presencia durante la infancia puede ser causa de enfermedades metabólicas hasta ahora consideradas típicas del adulto y mortalidad prematura, por lo que su correcto diagnóstico y tratamiento son fundamentales.

  5. The coordination of allocation: Logistics of kidney organ allocation to highly sensitized patients.

    PubMed

    Lunz, John; Hinsdale, Lisa; King, Casey; Pastush, Robin; Buenvenida, Magnolia; Harmon, Michael

    2017-01-01

    Since implementation, the new UNOS OPTN kidney allocation system (KAS) has drastically expanded the pool of available kidneys to candidates that may have previously waited extended periods for an organ offer. This is particularly true for highly sensitized patients. The changes to the KAS have had ramifications throughout the transplant process, including for organ procurement organizations (OPO) and local transplant hospital call centers. Here, we will examine the impact of the new KAS on the organ donation process and highlight the necessary interactions between the OPO and transplant centers to best match donor kidneys and highly sensitized recipients.

  6. Nebraska Initiative for Aerospace Research and Industrial Development (NIARID)

    NASA Technical Reports Server (NTRS)

    Bowen, Brent; Reichenbach, Steve; Ianno, Ned; Farr, Lynne; Tarry, Scott; Narayanan, Ram; Lehrer, Henry

    2002-01-01

    The UNO Aviation Institute Monograph Series began in 1994 as a key component of the education outreach and information transfer missions of the Aviation Institute and the NASA Nebraska Space Grant & EPSCoR Programs. The series is an outlet for aviation materials to be indexed and disseminated through an efficient medium. Publications are welcome in all aspects of aviation. Publication formats may include, but are not limited to, conference proceedings, bibliographies, research reports, manuals, technical reports, and other documents that should be archived and indexed for future reference by the aviation and world wide communities.

  7. NASA EPSCoR Nebraska Preparation Grant: Year 1

    NASA Technical Reports Server (NTRS)

    Bowen, Brent D.; Holmes, Bruce J.; Bartle, John R.; Gogos, George; Hinton, David W.; Lehrer, Henry R.; Moussavi, Massoum; Reed, B. J.; Schaaf, Michaela M.; Smith, Russell L.; Vlasek, Scott E.; Woods, Sara J.

    1999-01-01

    The UNO Aviation Institute Monograph Series began in 1994 as a key component of the education outreach and information transfer missions of the Aviation Institute and the NASA Nebraska Space Grant & EPSCOR (Experimental Program to Stimulate Competitive Research) Programs. The series is an outlet for aviation materials to be indexed and disseminated through an efficient medium. Publications are welcome in all aspects of aviation. Publication formats may include, but are not limited to, conference proceedings, bibliographies, research reports, manuals, technical reports, and other documents that should be archived and indexed for future reference by the aviation and world wide communities.

  8. Symposium on International Terrorism Held in Washington, DC on 2-3 December 1985

    DTIC Science & Technology

    1985-12-01

    l’Europe de l’Ouest pour le red~ploiement imp6rialiste, cohas~quenco do 11 ouVerture d’uno br~che dans 1e rapport do force international par les luttes de...diff6rents points de nouveaux foyers de lutte do lib~ration 0 A partir de ce~s expgriences, des d~bats ont 6t4 men6s au sein du mouvoment...inipdrialiste, los tachas~ essentielles de ia gu~rilla communiste eii Euarope do 100uest, pour le d6veloppement de son pro jet historique dans 1a lutte

  9. Aplicación del Teorema de Nekhorochev para tiempos de estabilidad en Mecánica Celeste

    NASA Astrophysics Data System (ADS)

    Miloni, O.; Núñez, J.; Brunini, A.

    En Mecánica Celeste, uno de los problemas centrales consiste en la determinación de los tiempos de estabilidad. El teorema de Nekhorochev proporciona un método para dicho estudio, para un sistema determinado por un hamiltoniano descripto en las variables acción-ángulo. El trabajo consiste en la acotación tanto del potencial perturbador y de la matriz hessiana del hamiltoniano integrable para determinar luego el tiempo de estabilidad de dicho sistema, donde por estabilidad se entiende la separación en norma infinito en el espacio de las acciones.

  10. Chemical and Electrochemical Properties of Potential Battery Systems in Room Temperature Molten Salts

    DTIC Science & Technology

    1988-10-25

    PERFORMING ORGANIZATION 6b OFFICE SYMBOL 7 . NAME Of MONTORM ORGANIZATION The University of Michigan 1 O 4’ AFOSR/NCChaimfeul IrngnnePfna k. ADDRES (ft. StM...INIVIDUAL 22b. TELIPONE ;= AN& Cods) 22c. OFFICE SYMBOL Dr. John S. Wilkes IN-CvO ,C DO FORM 1473. sgm 93B APR edicion may" be uw unO’U SECURITY...CLASSIFICrATION OF TMIS PAGE All otqw edmtons e aobsaket. UNCLWFE8 19. ABSTRACT COrTNUND The AI1 C 7 - anion was found to react with some basic, organic sol

  11. The Conference Proceedings of the 1999 Air Transport Research Group (ATRG) of the WCTR Society. Volume 1

    NASA Technical Reports Server (NTRS)

    Zhang, Anming (Editor); Bowen, Brent D. (Editor)

    1999-01-01

    The UNO (University of Nebraska at Omaha) Aviation Institute Monograph Series began in 1994 as a key component of the education outreach and information transfer missions of the Aviation Institute and the NASA Nebraska Space Grant & EPSCoR (Experimental Program to Stimulate Competitive Research) Programs. The series is an outlet for aviation materials to be indexed and disseminated through an efficient medium. Publications are welcome in all aspects of aviation. Publication formats may include, but are not limited to, conference proceedings, bibliographies, research reports, manuals, technical reports, and other documents that should be archived and indexed for future reference by the aviation and world wide communities.

  12. Great Lakes and St. Lawrence Seaway Navigation Season Extension. Volume 1. Main Report and Final Environmental Impact Statement

    DTIC Science & Technology

    1979-08-01

    the following Congressmen (listed 40o chronologically): 163 Representative John Mi. Murphy Representati~~eDavid H. Bonior- Senator-, Carl Levin...Representative Robert W...Davis Representative Barber B. Conable,,Jr. Representative Guy Vander Jagt Representative Carl D. Pursell penator William Proxmnire...AlOv~-ie uno~dex te AapJ~vl Methodfy ag 0han, n fiotb xpas- ’~g..v±, Phae to~iu eaine bae-11ne, orff s i~as Idoceta :Pihase WhIT Ge neoa -nesfrma

  13. Curvas de rotación - Atlas

    NASA Astrophysics Data System (ADS)

    Martín, C.

    Se está elaborando un atlas con imágenes y datos publicados en las revistas principales por diversos autores, de las curvas de rotación en galaxias observadas en diferentes frecuencias. Las curvas de rotación constituyen uno de los medios más apropiados para el estudio de las diferencias cinemáticas entre los diversos componentes y quizá la mejor prueba observacional de la existencia de materia oscura en el universo. Este atlas tiene el propósito de servir como una guía cualitativa y cuantitativa para estos estudios.

  14. A panchromatic view of the evolution of Supermassive Black Holes

    NASA Astrophysics Data System (ADS)

    Lusso, E.; Brusa, M.; Comastri, A.; Vignali, C.; Gilli, R.

    2008-10-01

    Verranno presentati i risultati preliminari di uno studio sistematico delle distribuzioni di energia spettrale (SED) di un campione statisticamente significativo di alcune centinaia di AGN (sia di tipo 1 che di tipo 2) selezionati dalla survey XMM-COSMOS. La vasta mole di dati disponibili sull'intero spettro elettromagnetico permette di calcolare le SED medie per diversi intervalli di redshift e luminosita'. Una stima affidabile della SED e' di fondamentale importanza per il calcolo della luminosita' bolometrica e quindi per lo studio della fisica dei processi di accrescimento su SMBH, per la loro evoluzione con il tempo cosmico.

  15. Crystal structure of dioxidobis(pentane-2,4-dionato-κ2 O,O′)[1-phenyl-3-(pyridin-4-yl)propane-κN]uranium(VI)

    PubMed Central

    Kawasaki, Takeshi; Kitazawa, Takafumi

    2015-01-01

    In the title compound, [UO2(C5H7O2)2(C14H15N)], the uran­yl(VI) unit ([O=U=O]2+) is coordinated to two acetyl­acetonate (acac) anions and one 1-phenyl-3-(pyridin-4-yl)propane (ppp) mol­ecule. The geometry around the U atom is UNO6 penta­gonal–bipyramidal; two uran­yl(VI) O atoms are located at the axial positions, whereas four O atoms from two chelating bidentate acac ligands and one N atom of a ppp ligand form the equatorial plane. PMID:25705446

  16. Crystal structure of dioxidobis(pentane-2,4-dionato-κ(2) O,O')[1-phenyl-3-(pyridin-4-yl)propane-κN]uranium(VI).

    PubMed

    Kawasaki, Takeshi; Kitazawa, Takafumi

    2015-01-01

    In the title compound, [UO2(C5H7O2)2(C14H15N)], the uran-yl(VI) unit ([O=U=O](2+)) is coordinated to two acetyl-acetonate (acac) anions and one 1-phenyl-3-(pyridin-4-yl)propane (ppp) mol-ecule. The geometry around the U atom is UNO6 penta-gonal-bipyramidal; two uran-yl(VI) O atoms are located at the axial positions, whereas four O atoms from two chelating bidentate acac ligands and one N atom of a ppp ligand form the equatorial plane.

  17. Pointing system for the balloon-borne astronomical payloads

    NASA Astrophysics Data System (ADS)

    Nirmal, Kaipacheri; Sreejith, Aickara Gopinathan; Mathew, Joice; Sarpotdar, Mayuresh; Ambily, Suresh; Prakash, Ajin; Safonova, Margarita; Murthy, Jayant

    2016-10-01

    We describe the development and implementation of a light-weight, fully autonomous 2-axis pointing and stabilization system designed for balloon-borne astronomical payloads. The system is developed using off-the-shelf components such as Arduino Uno controller, HMC 5883L magnetometer, MPU-9150 inertial measurement unit, and iWave GPS receiver unit. It is a compact and rugged system which can also be used to take images/video in a moving vehicle or in real photography. The system performance is evaluated from the ground, as well as in conditions simulated to imitate the actual flight by using a tethered launch.

  18. Technical Status Review on Drag Prediction and Analysis from Computational Fluid Dynamics: State of the Art

    DTIC Science & Technology

    1989-06-01

    transposable on 6coulomont tridimonsionnol. frottement , La figure 8 prdsont. pour 1. prof il UCaGo A HN - 1s torso C.,, ant 6valu6 par intdgration des 0,1 uno...prof ii CAST 7 A prdvision des coefficients adrodynsaiques & H - 0,7 une cospareison des C. 6valuds salon lea incidence fiade. deux techniques...pour ostimor Is trainio do frottement en soufflorie at an vol alors qus pour les avions militaires les moAles do privision concernont lotion couplet

  19. Fishermens Bend - A Centre of Australian Aviation

    DTIC Science & Technology

    1993-09-01

    extreme right. * 0 , -3.. 0 0 *0 0 0 * 0 Figure 4 Carey’s Shonholns eventually acquired the typical pairnwouk of the period . 0 * 0 i.4 -4- S V. Figure...passengers or goods for hite or reward for a period of - twelve ironth3 .77 from th ._-•..F =t day of.-.7..uno.... . 192.1 0 to the Thirty- -irst..---day...piston engines culminated in the design of the Cicada , a 7 cylinder radial engine of 450HP intended for the Winjeel. However, the number required was too

  20. SIMULATED COAL GAS MCFC POWER PLANT SYSTEM VERIFICATION

    SciTech Connect

    1998-10-31

    This is the Technical Progress Report covering October 1998. All tasks have been completed, except for those discussed on the following pages. Unocal estimated the costs of dismantling and packaging the test facility for storage and shipment. The scope of work for the contract has been modified to accommodate the dismantling and packaging of the plant. An amendment to Sub-Contract No. MCP-9-UNO between M-C Power and Unocal has been executed which includes the Scope of Work in Unocal's cost estimate.

  1. High-Speed, Low-Level Flight: Aircrew Factors

    DTIC Science & Technology

    1980-03-01

    a reduction in workload as a primary aim. Any improvement in mission capability which results from :uch developments can then be fully utilised by the...100 & 200 Wstta/m2 en moyanne. Il exists uno certaine hdtdrogdnditd lids b i’ssymdtria de Is position du capteur b llintdrieur de is cabins. On peut... capteur do force et d’un acc~ldrom~tre plac6 au point d’application des forces. Ainsi A I ’aide de mosures tocalemont exterieures au sujet, on ob~ective

  2. Developing RADARSAT’s METOC Capabilities in Support of Project Polar Epsilon

    DTIC Science & Technology

    2005-08-01

    pormettront aux Forces canadiornnos d’am~liorer leurs capacit6s op ~ rationnelles do surveillance et assureront A l’utilisatour uno plus grande confiance ý...fl Defence Research and Recherche et d~veloppement Deve-opfnent Canada pour ,a df1ense Canada DEFENCE !bJDEFENSE Developing RADARSAT’s METOC...accorde un contrat do recherche visant l’obtention do definitions et do roconimandlations do R et D. RWsultats Los vents do surface, los vagues et los

  3. Space Radar Image of North Sea, Germany

    NASA Technical Reports Server (NTRS)

    1994-01-01

    swiftly than is currently possible. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  4. Space Radar Image of Los Angeles, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -C/X-SAR, scientists will be able to discern these areas even more clearly. Space Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: the L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  5. Space Radar Image of the Yucatan Impact Crater Site

    NASA Technical Reports Server (NTRS)

    1999-01-01

    to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR. Research on the biological effects of the Chicxulub impact is supported by the NASA Exobiology Program.

  6. Roter Kamm Impact Crater in Namibia

    NASA Technical Reports Server (NTRS)

    1995-01-01

    the surface of the Earth help geologists understand the role of the impact process in the Earth's evolution, including effects on the atmosphere and on biological evolution.

    Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  7. Analysis of the Thermo-Elastic Response of Space Reflectors to Simulated Space Environment

    NASA Astrophysics Data System (ADS)

    Allegri, G.; Ivagnes, M. M.; Marchetti, M.; Poscente, F.

    2002-01-01

    The evaluation of space environment effects on materials and structures is a key matter to develop a proper design of long duration missions: since a large part of satellites operating in the earth orbital environment are employed for telecommunications, the development of space antennas and reflectors featured by high dimensional stability versus space environment interactions represents a major challenge for designers. The structural layout of state of the art space antennas and reflectors is very complex, since several different sensible elements and materials are employed: particular care must be placed in evaluating the actual geometrical configuration of the reflectors operating in the space environment, since very limited distortions of the designed layout can produce severe effects on the quality of the signal both received and transmitted, especially for antennas operating at high frequencies. The effects of thermal loads due to direct sunlight exposition and to earth and moon albedo can be easily taken into account employing the standard methods of structural analysis: on the other hand the thermal cycling and the exposition to the vacuum environment produce a long term damage accumulation which affects the whole structure. The typical effects of the just mentioned exposition are the outgassing of polymeric materials and the contamination of the exposed surface, which can affect sensibly the thermo-mechanical properties of the materials themselves and, therefore, the structural global response. The main aim of the present paper is to evaluate the synergistic effects of thermal cycling and of the exposition to high vacuum environment on an innovative antenna developed by Alenia Spazio S.p.a.: to this purpose, both an experimental and numerical research activity has been developed. A complete prototype of the antenna has been exposed to the space environment simulated by the SAS facility: this latter is constituted by an high vacuum chamber, equipped by

  8. Space Radar Image of the Silk route in Niya, Taklamak, China

    NASA Technical Reports Server (NTRS)

    1999-01-01

    -C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: the L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  9. Space Radar Image of Mammoth, California

    NASA Technical Reports Server (NTRS)

    1999-01-01

    . The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  10. Space Radar Image of Prince Albert, Canada

    NASA Technical Reports Server (NTRS)

    1999-01-01

    -greenish areas are young jack pine trees, 3 to 5 meters (10 to 16 feet) in height and 11 to 16 years old. The green areas are due to the relative high intensity of the HV channel which is strongly correlated with the amount of biomass. L-band HV channel shows the biomass variations over the entire region. Most of the green areas, when compared to the forest cover maps are identified as black spruce trees. The dark blue and dark purple colors show recently harvested or regrowth areas respectively. SIR-C/X-SAR is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  11. Space Radar Image of Kiluchevskoi, Volcano, Russia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    flanks of the volcano. Paths of these flows can be seen as thin lines in various shades of blue and green on the north flank in the center of the image. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  12. Space Radar Image of Karisoke & Virunga Volcanoes

    NASA Technical Reports Server (NTRS)

    1994-01-01

    vegetation maps of the area to aid in their studies of the last 650 mountain gorillas in the world. The faint lines above the bamboo forest are the result of agricultural terracing by the people who live in the region. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V. (DLR), the major partner in science, operations and data processing of X-SAR.

  13. Status and Perspectives of Electric Propulsion in Italy

    NASA Astrophysics Data System (ADS)

    Svelto, F.; Marcuccio, S.; Matticari, G.

    2002-01-01

    International Space Station to work as a long-duration testbed for EP systems. ASI co-funds the development of a very large testing facility (5.7 m internal diameter) for high power EP testing up to 50 kW. Proel Tecnologie is a Hi-Tech Organization established in 1986, operating in the field of electron (EGA for the TSS- 1and TSS-1R missions), ion and plasma sources for space applications. The Company, become a Division of LABEN S.p.A. (FINMECCANICA Company co-ordinated by Alenia Spazio) since 1995, has identified in the EP the main strategic development line. LABEN/Proel activities include the development of an Ion Thruster in the millinewton range (RMT, ASI technology contract), cathodes/neutralizers for EP in the 0,2-5 kW power range, in- flight diagnostics of EP sub-systems (ARTEMIS, STENTOR, SMART-1), xenon feedlines and flow control units, plasma contactors for the electrostatic charge control on spacecrafts (PLEGPAY experiment on the ISS) and support technologies/facilities for the manufacturing of Hall Thrusters and propellant tanks (the latter by using an advanced process for composite materials polymerization through electron beam irradiation). ASI considers EP development as a National priority and various technology activities are under evaluation. In this context, the Agency is playing a continued role in the process of exploitation of Italian experience and capability and in harmonisation with European efforts in the field.

  14. Space Radar Image of Raco, Michigan, ecological test site

    NASA Technical Reports Server (NTRS)

    1994-01-01

    global changes resulting from climatic warming. Baseline studies of vegetation are essential in monitoring these expected changes. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  15. Space Radar Image of Rabaul Volcano, New Guinea

    NASA Technical Reports Server (NTRS)

    1994-01-01

    the image. Ashfall and subsequent rains caused the collapse of most buildings in the town of Rabaul. Mudflows and flooding continue to pose serious threats to the town and surrounding villages. Volcanologists and local authorities expect to use data such as this radar image to assist them in identifying the mechanisms of the eruption and future hazardous conditions that may be associated with the vigorously active volcano. Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  16. National Workshop on Astrobiology: The Life Science Involvement of AAS I Laben

    NASA Astrophysics Data System (ADS)

    Adami, Giorgio

    2006-12-01

    The search for traces of past and present life is a complex and multidisciplinary research activity involving several scientific heritages and a specific industrial ability for planetary exploration. Laben was established in 1958 to design and manufacture electronic instruments for research in nuclear physics. In the mid 2004 the company was merged with Alenia Spazio. It is now part of Alcatel Alenia Space, a French Italian joint venture. Alcatel Alenia Space Italia SpA is a Finmeccanica Company. Currently the plant of Vimodrone provides a wide heritage in life science oriented to space application. The experience in Space Life Science is consolidated in the following research areas: (1) Physiology: Mouse models related to studies on human physiology Human neuroscience research and dosimetry (2) Animal Adaptation and Behaviour: mice behaviour related to stabling stress (3) Developmental Biology: aquatic microorganisms cultivation (4) Cell culture & Biotechnology: Protein crystal growth General purpose Multiwell Next Biotechnology studies and development: Bio reactor, mainly oriented to tissue engineering Microsensor for tissue control (organ replacement) Multiwell for adherent cell culture or

  17. Space Radar Image of Oetzal, Austria

    NASA Technical Reports Server (NTRS)

    1999-01-01

    microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  18. Safsaf Oasis, Egypt

    NASA Technical Reports Server (NTRS)

    1998-01-01

    is C-band, horizontally transmitted and received; and blue is X-band, vertically transmitted and received. The radar image was acquired by the Spaceborne Imaging Radar-C/ X-band Synthetic Aperture Radar (SIR-C/X-SAR) on April 16, 1994, on board the space shuttle Endeavour. SIR-C/X-SAR, a joint mission of the German, Italian and United States space agencies, is part of NASA's Earth Science Enterprise. The Landsat Program is managed jointly by NASA, the National Oceanic and Atmospheric Administration and the United States Geological Survey.

    Spaceborne Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  19. Space Radar Image of Manaus, Brazil

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Estaciais, during the first and second flights of the SIR-C/X-SAR system have validated the interpretation of the radar images. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  20. Space Radar Image of Manaus region of Brazil

    NASA Technical Reports Server (NTRS)

    1994-01-01

    the first and second flights of the SIR-C/X-SAR system have validated the interpretation of the radar images. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  1. Space Radar Image of Altona, Manitoba, Canada

    NASA Technical Reports Server (NTRS)

    1994-01-01

    the magenta indicate differences in the degree of soil moisture change and differences in surface roughness. This seasonal composite demonstrates the sensitivity of radar to changes in agricultural surface conditions such as soil moisture, tillage, cropping and harvesting. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  2. Space Radar Image of Glascow, Missouri

    NASA Technical Reports Server (NTRS)

    1994-01-01

    community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  3. Space Radar Image of Missouri River, Glasgow, Missouri

    NASA Technical Reports Server (NTRS)

    1994-01-01

    ) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  4. Space Radar Image of Bebedauro, Brazil, seasonal

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V. (DLR), the major partner in science, operations and data processing of X-SAR.

  5. Space Radar Image of Kliuchevskoi Volcano, Russia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrte.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  6. Space Radar Image of Mammoth Mountain, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm), and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes that are caused by nature and those changes that are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science operations and data processing of X-SAR.

  7. Space Radar Image of Mississippi Delta

    NASA Technical Reports Server (NTRS)

    1999-01-01

    illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  8. Space Radar Image of Taal Volcano, Philippines

    NASA Technical Reports Server (NTRS)

    1994-01-01

    with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  9. SPace Radar Image of Mt. Pinatubo, Philippines

    NASA Technical Reports Server (NTRS)

    1999-01-01

    the next 10 to 15 years. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  10. Space Radar Image of Weddell Sea Ice

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -ice growth perhaps 5 to 10 centimeters (2 to 4 inches) thick. The more extensive dark zones are covered by a slightly thicker layer of smooth, level ice up to 70 centimeters (28 inches) thick. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  11. Europlanet Integrated and Distributed Information Service

    NASA Astrophysics Data System (ADS)

    Schmidt, W.; Capria, M. T.; Chanteur, G.

    2009-04-01

    integrated search facilities, compatible structures and a common management. Each of these nodes concentrates on a special field of planetary sciences, has its own team of related international experts and is responsible for the access to information and data centres related to its area of competence. Integrated keyword-based search-possibilities direct inquiries to those node(s), most likely to return the wanted information. These nodes are hosted by the following organizations: - The Finnish Meteorological Institute (FMI) in Helsinki, Finland, hosts the Technical Node for a wide range of support activities and provides the network management. - The Institute of Planetary Research (IPR) of DLR in Berlin, Germany, hosts the Planetary Surfaces and Interiors Node, concentrating on internal structure, formation and evolution of the planets, their moons, asteroids and comets. - The Institut für Weltraumforschung, IWF (Space Research Institute) of the Austrian Academy of Sciences (OeAW) in Graz hosts the Planetary Plasma Node in close cooperation with the French space plasma data center CDPP in Toulouse. - The Institut Pierre-Simon Laplace in Paris hosts the Planetary Atmospheres Node. - The Paris Observatory hosts the Virtual Observatory Paris Data Center providing among others access to a wide range of atomic and molecular spectral databases. - The Istituto di Fisica dello Spazio Interplanetario (IFSI) in Rome hosts the Small Bodies and Dust Node, in cooperation with the ESA/ESTECs Virtual Meteor Observatory in Noordwijk, The Netherlands, concentrating on research and observations related to solar system asteroids, comets, meteors and interplanetary dust. During the next four years a set of tools for describing, accessing and combining information and data from different sources will be developed, offering finally a Virtual Observatory like access to many data essential for planetary research from European and None-European sources. Web access via any of the mentioned nodes, e

  12. Space Radar Image of Kilauea Volcano, Hawaii

    NASA Technical Reports Server (NTRS)

    1994-01-01

    radar missions to help in better understanding the processes responsible for volcanic eruptions and earthquakes. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  13. A Conceptual Design for a Small Deployer Satellite

    NASA Astrophysics Data System (ADS)

    Zumbo, S.

    2002-01-01

    In the last few years, the space scientific and industrial communities have demonstrated a renewed interest for small missions based on new categories of space platforms: micro &nano satellites. The cost reduction w.r.t. larger satellite missions, the shorter time from concept to launch, the risk distribution and the possibility to use this kind of bus both for stand-alone projects and as complementary to larger programs, are key factors that make this new kind of technology suitable for a wide range of space related activities. In particular it is now possible to conceive new mission philosophy implying the realisation of micro satellite constellations, with S/C flying in close formation to form a network of distributed sensors either for near-real time telecommunication or Earth remote sensing and disaster monitoring systems or physics and astronomical researches for Earth-Sun dynamics and high energy radiation studies. At the same time micro satellite are becoming important test- beds for new technologies that will eventually be used on larger missions, with relevant spin-offs potentialities towards other industrial fields. The foreseen social and economical direct benefits, the reduced mission costs and the possibility even for a small skilled team to manage all the project, represent very attractive arguments for universities and research institutes to invest funds and human resources to get first order technical and theoretical skills in the field of micro satellite design, with important influences on the training programs of motivated students that are directly involved in all the project's phases. In consideration of these space market important new trends and of the academic benefits that could be guaranteed by undertaking a micro satellite mission project, basing on its long space activities heritage, University of Rome "La Sapienza" - Aerospace and Astronautics Department, with the support of the Italian Space Agency, Alenia Spazio and of important

  14. Space Radar Image of Chernobyl

    NASA Technical Reports Server (NTRS)

    1994-01-01

    conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  15. DREAMS: a payload on-board the ExoMars EDM Schiaparelli for the characterization of Martian environment during the statistical dust storm season

    NASA Astrophysics Data System (ADS)

    Molfese, Cesare; Esposito, Francesca; Debei, Stefano; Bettanini, Carlo; Arruego Rodríguez, Ignacio; Colombatti, Giacomo; Harri, Ari-Matty.; Montmessin, Franck; Wilson, Colin; Aboudan, Alessio; Mugnuolo, Raffaele; Pirrotta, Simone; Marchetti, Ernesto; Witasse, Olivier

    2015-04-01

    F. Esposito1, S. Debei2, C. Bettanini2, C. Molfese1, I. Arruego Rodríguez3, G. Colombatti2, A-M. Harri4, F. Montmessin5, C. Wilson6, A. Aboudan2, S. Abbaki5, V. Apestigue3, G. Bellucci7, J-J. Berthelier5, J. R. Brucato8, S. B. Calcutt6, F. Cortecchia1, F. Cucciarrè2, G. Di Achille1, F. Ferri2, F. Forget9, E. Friso2, M. Genzer4, P. Gilbert5, H. Haukka4, J. J. Jiménez3, S. Jiménez10, J-L. Josset11, O. Karatekin12, G. Landis13, R. Lorenz14, J. Martinez3, L. Marty1, V. Mennella1, D. Möhlmann15, D. Moirin5, R. Molinaro1, E. Palomba7, M. Patel16, J-P. Pommereau5, C.I. Popa1, S. Rafkin17, P. Rannou18, N.O. Renno19, P. Schipani1, W. Schmidt4, E. Segato2, S. Silvestro1, F. Simoes20, A. Spiga9, F. Valero21, L. Vázquez21, F. Vivat5, O. Witasse22, R. Mugnuolo23, S. Pirrotta23, E.Marchetti23 1INAF - Osservatorio Astronomico di Capodimonte, Napoli, Italy, 2CISAS - Università degli Studi di Padova, Padova, Italy, 3INTA, Spain, 4Finnish Meteorological Institute (FMI),Helsinki, Finland, 5LATMOS - CNRS/UVSQ/IPSL, France, 6Oxford University, Oxford, United Kingdom, 7INAF - Istituto di Fisica dello Spazio Interplanetario (IFSI), 8INAF-Osservatorio Astrofisico di Arcetri, 9CNRS, LMD, France, 10Universidad Politécnica de Madrid, Spain, 11Space Exploration Institute, Switzerland, 12Royal Observatory of Belgium,Belgium, 13NASA, GRC, USA, 14JHU Applied Physics Lab (JHU-APL), USA, 15DLR PF Leitungsbereich, Berlin, Germany, 16Open University, UK, 17SwRL, Switzerland, 18GSMA, France, 19University of Michigan, USA, 20NASA, GSFC, USA, 21Universidad Complutense de Madrid (UCM), Spain, 22ESA-ESTEC, Noordwijk, The Netherlands, 23Italian Space Agency, Italy DREAMS (Dust characterization, Risk assessment and Environment Analyzer on the Martian Surface) package is an integrated multi-sensor scientific payload dedicated to characterizing the landing site environment in dusty conditions. It will measure pressure, wind speed and direction, relative humidity, temperature, the solar irradiance

  16. Space Radar Image of Death Valley, California

    NASA Technical Reports Server (NTRS)

    1999-01-01

    also one of the primary calibration sites for SIR-C/X-SAR. The bright dots near the center of the image are corner reflectors that have been set-up to calibrate the radar as the shuttle passes overhead. Thirty triangular-shaped reflectors (they look like aluminum pyramids) have been deployed by the calibration team from JPL over a 40- by 40-kilometer (25- by 25-mile) area in and around Death Valley. The calibration team will also deploy transponders (electronic reflectors) and receivers to measure the radar signals from SIR-C/X-SAR on the ground. SIR-C/X-SAR is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  17. Space Radar Image of Flevoland, Netherlands

    NASA Technical Reports Server (NTRS)

    1999-01-01

    used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrte.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  18. Space Radar Image of Moscow, Russia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  19. Space Radar Image of the Lost City of Ubar

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  20. Space Radar Image of Kilauea, Hawaii

    NASA Technical Reports Server (NTRS)

    1999-01-01

    community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  1. Space Radar Image of West Texas - SAR scan

    NASA Technical Reports Server (NTRS)

    1999-01-01

    forthcoming Canadian RADARSAT satellite. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  2. Space Radar Image of Mammoth, California

    NASA Technical Reports Server (NTRS)

    1999-01-01

    environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI) with the Deutsche Forschungsanstalt fur Luft und Raumfahrt e.v. (DLR), the major partner in science, operation and data processing of X-SAR.

  3. Space Radar Image of Oberpfaffenhofen, Germany

    NASA Technical Reports Server (NTRS)

    1999-01-01

    -C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  4. Space Radar Image of Houston, Texas

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -C/X-band Synthetic Aperture Radar(SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI) with the Deutsche Forschungsanstalt fuer luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  5. Angkor, Cambodia

    NASA Technical Reports Server (NTRS)

    1995-01-01

    the ancient city. The SIR-C/X-SAR data are being used by archaeologists at the World Monuments Fund and the Royal Angkor Foundation to understand how the city grew, flourished and later fell into disuse over an 800-year period. The data are also being used to help reconstruct the vast system of hydrological works, canals and reservoirs, which have gone out of use over time. Research teams from more than 11 countries will be using this data to study the Angkor complex.

    Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  6. Space Radar Image of Kliuchevskoi, Russia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    mature in Kamchatka's 120-day growing season. The forest industry is managing these forests and practicing selective cutting to allow younger trees time to grow and reseed. X-SAR images will aid in mapping these deforested areas and in encouraging further recultivation efforts. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  7. Space Radar Image of Colombian Volcano

    NASA Technical Reports Server (NTRS)

    1999-01-01

    weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companiesfor the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency,Agenzia SpazialeItaliana (ASI), with the Deutsche Forschungsanstalt fuer Luft undRaumfahrt e.v.(DLR), the major partner in science,operations, and data processing of X-SAR.

  8. [New coronavirus infection: new challenges, new legacies].

    PubMed

    Cabrera-Gaytán, David Alejandro; Vargas-Valerio, Alfredo; Grajales-Muñiz, Concepción

    2014-01-01

    Introducción: emergió una nueva enfermedad por coronavirus. Su historia natural y sus determinantes todavía se están investigando. Se carece de una publicación que estudie todos los casos identificados en el mundo, por lo que el objetivo de este artículo estriba en describir los casos y defunciones por el nuevo coronavirus. Métodos: se revisaron las publicaciones en línea de la Organización Mundial de la Salud, del Centro Europeo para el Control y Prevención de Enfermedades y de la Eurosurveillance. Se realizó un análisis descriptivo de los casos, se calcularon los límites para proporciones con un alfa del 0.05 por prueba de Wilson y una prueba t de Student para diferencia de medias. Resultados: son 17 casos confirmados y 11 defunciones en varios países de Asia y Europa; predominaron los pacientes masculinos. La tasa de letalidad fue de 64.70 %; los que fallecieron se hospitalizaron cinco días después de los primeros síntomas. Se carece de publicaciones que describan la historia natural de la enfermedad; sin embargo, lo descrito en las publicaciones de Europa coincide con los resultados de este estudio. Conclusión: es necesario continuar con la vigilancia epidemiológica y la realización de nuevos estudios para evaluar el impacto de esta enfermedad en la salud pública internacional.

  9. PubMed

    Ávila García, Manuel; Huertas Delgado, Francisco Javier Huertas Delgado; Tercedor Sánchez, Pablo

    2016-11-29

    Introducción: España es el tercer país europeo con mayor prevalencia de obesidad infantil, dando lugar a la aparición de programas de intervención destinados a fomentar hábitos alimentarios saludables y/o de actividad física (AF).Objetivo: el propósito de esta revisión sistemática fue conocer aquellos programas de intervención para la promoción de hábitos alimentarios y de AF desarrollados en escolares españoles de Educación Primaria (EP) y analizar la influencia que han tenido las intervenciones sobre la composición corporal, los hábitos alimentarios y la AF.Método: se revisaron los artículos publicados entre los años 2000 y 2015 en las siguientes bases de datos: Web of Science, Scopus, Dialnet, PubMed, Eric, Sportdiscus y Psycinfo por dos revisores independientes.Resultados: se contabilizaron un total de 813 artículos, de los cuales tras la eliminación de duplicados (192), lectura de títulos y resumen (587) y lectura del texto completo (17), tan solo 7 cumplieron con los criterios de inclusión.Conclusiones: los programas de intervención analizados mostraron cambios positivos en la mejora de la composición corporal en algo menos de la mitad de los estudios analizados; por otro lado, casi todos los programas de intervención analizados tuvieron un efecto positivo sobre conductas respecto a ciertos hábitos alimentarios, como la ingesta de frutas, y sobre el incremento del nivel de AF.

  10. [PREVALENCE OF THINNESS, OVERWEIGHT AND OBESITY AMONG 4-TO-6-YEAR-OLD SPANISH SCHOOLCHILDREN IN 2013; SITUATION IN THE EUROPEAN CONTEXT].

    PubMed

    González García, Alberto; Álvarez Bueno, Celia; Lucas de la Cruz, Lidia; Sánchez López, Mairena; Solera Martínez, Montserrat; Díez Fernández, Ana; Martínez Vizcaíno, Vicente

    2015-10-01

    Introducción y objetivos: tanto el exceso de peso como la delgadez se relacionan con diversos problemas de salud que pueden continuar hasta la edad adulta. Los objetivos de este estudio fueron estimar la prevalencia de delgadez, sobrepeso y obesidad en escolares de 4-6 años de las provincias de Cuenca y Ciudad Real (España), mediante criterios del Grupo Internacional de Trabajo sobre Obesidad y de la Organización Mundial de la Salud, y comparar estas cifras con otros estudios europeos. Métodos: estudio observacional-transversal que incluyó a 1.585 escolares realizado en septiembre de 2013. Las mediciones de peso y talla fueron realizadas por enfermeras entrenadas y mediante procedimientos estandarizados. El estatus ponderal se definió según los criterios del Grupo Internacional de Trabajo sobre Obesidad y la Organización Mundial de la Salud. Resultados: según criterios del Grupo Internacional de Trabajo sobre Obesidad, la prevalencia de delgadez, sobrepeso y obesidad fue del 20,51%, 11,84% y 8,58%, respectivamente; y del 3,97%, 13,92% y 10,79% cuando se utilizaron los criterios de la Organización Mundial de la Salud. No se encontraron diferencias estadísticamente significativas por sexo ni provincia para ninguna categoría de estatus ponderal. Para ambos criterios, la prevalencia de delgadez fue menor a medida que aumentaba la edad, mientras que la prevalencia de sobrepeso/obesidad fue mayor. Conclusiones: la prevalencia de exceso de peso podría haber tocado techo en España, aunque continúa siendo un importante problema de salud pública. El aumento de la prevalencia de bajo peso debería ocupar un lugar relevante en las intervenciones de salud pública.

  11. Using Quantum Confinement to Uniquely Identify Devices

    NASA Astrophysics Data System (ADS)

    Roberts, J.; Bagci, I. E.; Zawawi, M. A. M.; Sexton, J.; Hulbert, N.; Noori, Y. J.; Young, M. P.; Woodhead, C. S.; Missous, M.; Migliorato, M. A.; Roedig, U.; Young, R. J.

    2015-11-01

    Modern technology unintentionally provides resources that enable the trust of everyday interactions to be undermined. Some authentication schemes address this issue using devices that give a unique output in response to a challenge. These signatures are generated by hard-to-predict physical responses derived from structural characteristics, which lend themselves to two different architectures, known as unique objects (UNOs) and physically unclonable functions (PUFs). The classical design of UNOs and PUFs limits their size and, in some cases, their security. Here we show that quantum confinement lends itself to the provision of unique identities at the nanoscale, by using fluctuations in tunnelling measurements through quantum wells in resonant tunnelling diodes (RTDs). This provides an uncomplicated measurement of identity without conventional resource limitations whilst providing robust security. The confined energy levels are highly sensitive to the specific nanostructure within each RTD, resulting in a distinct tunnelling spectrum for every device, as they contain a unique and unpredictable structure that is presently impossible to clone. This new class of authentication device operates with minimal resources in simple electronic structures above room temperature.

  12. Organ transplantation for nonresidents of the United States: a policy for transparency.

    PubMed

    Glazier, A K; Danovitch, G M; Delmonico, F L

    2014-08-01

    A policy proposal relating to transplantation of deceased donor organs into nonresidents of the United States was jointly sponsored by the Organ Procurement and Transplantation Network (OPTN)/United Network for Organ Sharing (UNOS) International Relations and Ethics Committees and approved by the OPTN/UNOS Board in June 2012. The proposal followed prior acceptance by the Board of the definitions of "travel for transplantation" and "transplant tourism" and the introduction in March 2012 of revised data collection categories for transplant candidates who are neither citizens nor residents. The most important aspect of the new policy concerns replacement of the previous so-called "5% rule" with the review of all residency and citizenship data and the preparation of a public annual report. The new policy does not prohibit organ transplantation in nonresidents. However, the policy and public data report will ensure transparency and support transplant center responsibility to account for their practices. Since the adoption of the policy, the first 19 months of data show that less than 1% of new deceased donor waitlist additions and less than 1% of transplantation recipients were non-US citizen/nonresidents candidates who traveled to the United States for purposes of transplantation. By adopting this policy, the US transplant community promotes public trust and serves as an example to the international transplant community.

  13. Living kidney donors and ESRD.

    PubMed

    Ross, Lainie Friedman

    2015-07-01

    There are more than 325 living kidney donors who have developed end-stage renal disease and have been listed on the Organ Procurement and Transplantation Network (OPTN)/United Network for Organ Sharing (UNOS) deceased donor kidney wait list. The OPTN/UNOS database records where these kidney donors are listed and, if they donated after April 1994, where that donation occurred. These 2 locations are often not the same. In this commentary, I examine whether a national living donor registry should be created and whether transplantation centers should be notified when one of their living kidney donors develops end-stage renal disease. I consider and refute 5 potential objections to center notification. I explain that transplantation centers should look back at these cases and input data into a registry to attempt to identify patterns that could improve donor evaluation protocols. Creating a registry and mining the information it contains is, in my view, our moral and professional responsibility to future patients and the transplantation endeavor. As individuals and as a community, we need to acknowledge the many unknown risks of living kidney donation and take responsibility for identifying these risks. We then must share information about these risks, educate prospective donors about them, and attempt to minimize them.

  14. Archive of Sediment Data Collected around the Chandeleur Islands and Breton Island in 2007 and 1987 (Vibracore Surveys: 07SCC04, 07SCC05, and 87039)

    USGS Publications Warehouse

    Dreher, C.A.; Flocks, J.G.; Kulp, M.A.; Ferina, N.F.

    2010-01-01

    In 2006 and 2007, the U.S. Geological Survey (USGS) and collaborators at the University of New Orleans (UNO) collected high-resolution seismic profiles and subsurface cores around the Chandeleur and Breton Islands, Louisiana (Study Area Map). To ground-truth the acoustic seismic surveys conducted in 2006, 124 vibracores were acquired during the 07SCC04 and 07SCC05 cruises in 2007. These cores were collected within the back-barrier, nearshore, and offshore environments. The surveys were conducted as part of a post-hurricane assessment and sediment resource inventory for the Barrier Island Coastal Monitoring (BICM) project. Vibracores were collected offshore using the USGS R/V G.K. Gilbert, while the terrestrial, back-barrier, and nearshore vibracores were collected from the UNO R/V Greenhead. This report serves as an archive of sediment data from two concurrent vibracore surveys (cruises 07SCC04 and 07SCC05) from around the Breton and Chandeleur Islands in 2007 and also documents sediment data from vibracores collected offshore of the Chandeleur Islands in 1987 (cruise 87039). The 1987 vibracores were collected through the collaborated efforts of the USGS, Louisiana Geological Survey (LGS), and Alpine Ocean Seismic. Each vibracore can be identified by cruise and core number.

  15. Does Lung Donation by Heart Donors Have an Impact on Survival in Heart Transplant Recipients?

    PubMed

    Xia, Y; Friedmann, P; Bello, R; Goldstein, D; D'Alessandro, D

    2017-02-01

    Lung procurement is increasing during multiorgan recovery and substantially alters the explant process. This study evaluated whether lung donation by a heart donor affects survival in heart transplant recipients. Retrospective analysis of United Network for Organ Sharing (UNOS) adult heart transplantation data from 1998 to 2012 was performed. Lung donors (LDs) were defined as those having at least one lung procured and transplanted. Non-LDs had neither lung transplanted. Heart transplant recipients who had previous transplants, who had heterotopic transplants, who were waitlisted for other organs or who were temporarily delisted were excluded from the analysis. Kaplan-Meier survival analysis and Cox proportional hazards regression were performed. Of 23 590 heart transplant recipients meeting criteria during the study period, 8638 (36.6%) transplants were from LDs. Donors in the LD group had less history of cigarette use (15.5% vs. 29.5%, p < 0.001). On univariate analysis, LDs were associated with improved patient survival (p < 0.001). On multivariate analysis, LDs were not significantly associated with patient survival (adjusted hazard ratio 0.98, 95% confidence interval 0.94-1.03). Analysis of the UNOS registry suggested that donor pulmonary status and lung procurement had no detrimental effect on survival in heart transplant recipients, supporting the present practice of using donor lungs whenever possible.

  16. [Communication denied: a pilot study on critical relationship in nursing].

    PubMed

    Cotichelli, Giordano

    2014-01-01

    INTRODUCTION. In letteratura sono pressoché assenti studi sula comunicazione infermieristica quando viene negata, ciò fa sorgere il quesito sul perché rifuggire la relazione con il paziente. OBIETTIVI. Valutare le criticità nella comunicazione infermieristica al fine di costruire una base analitica per uno studio più approfondito. MATERIALI E METODI. Osservazione partecipata (cover) durante uno stage di tirocinio, utilizzando un diario dell’osservazione e prendendo in esame il contesto di lavoro e relazionale di un reparto internistico. RISULTATI. Nella maggioranza dei casi si rifugge la comunicazione, riducendo i tempi di contatto con i pazienti, in altri la si ricerca anche quando non espressamente richiesta dal paziente. CONCLUSIONI. Fuggire la relazione può essere un indicatore di insicurezza professionale. L’Altro significativo cui si nega la relazione, diventa lo specchio in cui il professionista ritrova le sue debolezze. Considerare questi elementi favorisce la dimensione terapeutica. Lo studio si rivela elemento di partenza potenziale per un lavoro che possa avere maggior peso con un campione più ampio e in contesti più articolati.

  17. Intermittent pneumatic compression in laparoscopic surgery for prevention of deep vein thrombosis and cellular damage from iatrogenic compartment syndrome.

    PubMed

    Sederino, Maria Grazia; Casamassima, Giulia; Laforgia, Rita; Balducci, Giovanni; Carbotta, Giuseppe; Tromba, Antonella

    In chirurgia laparoscopica l’induzione del pneumoperitoneo (PNP) realizza una sindrome compartimentale iatrogena con ripercussioni sul circolo venoso profondo degli arti inferiori. In questo studio abbiamo voluto valutare l’incidenza di Trombosi Venosa Profonda (TVP) postoperatoria e del danno cellulare da sindrome compartimentale iatrogena analizzando due gruppi di pazienti, ad uno dei quali è stato applicato un dispositivo Sequential Compression Device (SCD). I pazienti selezionati sono stati suddivisi in due gruppi e sono stati sottoposti a chirurgia laparoscopica con durata non inferiore a 90’. È stato rilevato con metodo ECOCOLOR-DOPPLER il flusso venoso degli arti inferiori e soltanto ad uno dei due gruppi è stato applicato un dispositivo SCD. Da novembre 2006 a ottobre 2007 sono stati valutati 35 pz, 21 pz con dispositivo SCD e 14 pz utilizzati come gruppo controllo, con follow-up a 7 gg, 14 gg, 30 gg, a 3 e 5 anni. L’utilizzo di un dispositivo SCD applicato agli arti inferiori consente un aumento del ritorno venoso dagli arti inferiori diminuendone il rischio di TVP.

  18. La opacidad atmosférica del CASLEO a ondas milimétricas

    NASA Astrophysics Data System (ADS)

    Bareilles, F.; Olalde, J.; Picardo, C.; Guarrera, L.; Arnal, E. M.; Morras, R.; Perilli, D.; Salazar, P.

    Mediante el uso de un radiómetro que trabaja en la frecuencia de 210 GHz, se han realizado mediciones de la transparencia de la atmósfera a esa frecuencia. Los sitios en los que se han realizado las medidas, corresponden al Cerro Negro de la Tina (Cerro Burek), ubicado a unos 2650 m de altura, y a un sitio ubicado a unos 3400 m de altura, localizado en la Pampa del Jarillal. Las mediciones forman parte de una campaña que cubrirá un lapso de tres años, durante la cual se caracterizan distintas zonas ubicadas en la cordillera. Los resultados que se comunican fueron obtenidos durante el período diciembre de 2002 a septiembre de 2003. Se realiza una comparación preliminar entre la opacidad atmosférica de los lugares mencionados y aquélla de otros sitios en los que se encuentran instaladas facilidades observacionales que operan en la banda milimétrica y submilimétrica del espectro.

  19. Why not the University of New Orleans? Social disorganization and sexual violence among internally displaced women of Hurricane Katrina.

    PubMed

    Fagen, Jennifer L; Sorensen, William; Anderson, Peter B

    2011-10-01

    Researchers have reported that natural disasters lead to an increase in sexual violence against women and this is echoed by the current situation in Haiti. This is a social pattern throughout the world during periods of war, as well as natural disasters such as tsunamis, famine, and hurricanes. This article examines the prevalence of sexual violence experienced by women students at the University of New Orleans (UNO) before and after Hurricane Katrina using the CORE Alcohol and Drug Survey. Two hundred and thirty seven women participated in the pre-Katrina study and 215 women participated in the post-Katrina study. We hypothesized that, due to the trauma of this disaster, there would be a higher prevalence of sexual aggression against women after Katrina than there was before Katrina. Our analyses yielded no significant differences in any of the measures of sexual violence toward women (nine CORE survey items) pre to post Katrina, so our hypothesis was not supported. We suggest that social organization and cultural attenuation--often indicators of sexual assault in FEMA Greenfield communities--were mitigated by social cohesion found on the UNO campus post-Katrina.

  20. [Pharmacological strategies to improve the adherence to highly active antiretroviral therapy].

    PubMed

    Clapé-Laffita, Oneyda

    2013-01-01

    Introducción: la adherencia a la terapia antirretroviral es un factor importante para suprimir el virus de la inmunodeficiencia humana. El propósito de la investigación que se presenta fue aplicar estrategias farmacológicas basadas en medidas farmacocinéticas para facilitar la adherencia a la terapia antirretroviral. Métodos: se realizó un estudio descriptivo durante ocho meses, con 75 pacientes positivos al virus de inmunodeficiencia humana, con criterios clínicos y sociales para una terapia antirretroviral altamente activa, en Opuwo, Namibia. Se analizaron aspectos farmacológicos como la no existencia de efectos adversos graves ni interacciones medicamentosas riesgosas. El análisis de resultado fue realizado con estadística descriptiva. Resultados: fueron detectados tres efectos adversos leves (dos para efavirenz y uno para nevirapina) y uno grave para estavudina/lamivudina. Se evitaron las interacciones medicamentosas riesgosas aplicando medidas farmacocinéticas con efavirenz, estavudina/ lamivudina y zidovudina; así como entre nevirapina y fluconazol (o ketoconazol). Conclusiones: la adherencia a la terapia antirretroviral altamente activa se facilitó al aplicar las estrategias farmacológicas propuestas y se evitaron efectos adversos e interacciones medicamentosas riesgosas.

  1. Discos de acreción circumplanares: Modelo de Co-acreción

    NASA Astrophysics Data System (ADS)

    Parisi, M. G.; de Elía, G.

    Los discos de acreción circumplanetarios precursores de los satélites regulares de los planetas gigantes, se pueden formar por cuatro mecanismos (Pollack y otros, 1991, In Uranus, Bergtralh, Miner y Mattews, Eds., p. 469, Univ. de Arizona Press, Tucson). En este trabajo estudiamos uno de tales mecanismos: el Modelo de Co-acreción. En dicho modelo, el disco circumplanetario se forma a partir de las colisiones mutuas entre planetesimales dentro de la esfera de Hill del planeta durante el proceso de formación planetaria. Realizamos un modelo semi-analítico para calcular la masa del disco y compararla con la masa requerida para formar los satélites regulares de los planetas gigantes. Hemos obtenido una cota superior para la masa del disco que resulta inferior a la masa de los satélites más grandes de los planetas gigantes. En principio, estos resultados permitirían descartar el modelo de co-acreción como uno de los procesos que podrían dar lugar a la formación de los satélites regulares. Estos resultados permiten obtener restricciones en el escenario de formación planetaria y en los mecanismos de formación de sistemas de satélites.

  2. A primary subcutaneous hydatid cyst in the thigh A case report.

    PubMed

    Salamone, Giuseppe; Licari, Leo; Randisi, Brenda; Di Carlo, Paola; Tutino, Roberta; Falco, Nicolò; Augello, Giuseppe; Raspanti, Cristina; Cocorullo, Gianfranco; Gulotta, Gaspare

    2016-04-08

    L’Echinococcus spp. rappresenta il movente eziopatogenetico della malattia idatidea, patologia a carattere endemico in diverse parti del mondo, con tipica localizzazione della cisti da echinococco, prodotto del ciclo vitale del parassita, in sede polmonare od epatica. Ciononostante le localizzazioni atipiche della malattia esistono e rappresentano circa il 1,6% dei casi, la più comune delle quali certamente quella sottocutanea. I dati a disposizione circa la diagnosi ed il trattamento delle rare forme a localizzazione atipica risultano disomogenei e pochi dirimenti circa uno standard diagnostico-terapeutico da adottare. Si è voluto presentare dunque il caso di una donna di 68 anni che lamentava la comparsa di una tumefazione al terzo prossimale della coscia dx che tendeva ad incrementarsi volumetricamente nel tempo. Dopo diverse indagini cliniche, oltre che una accurata anamnesi, il sospetto di cisti idatidea è stato confermato. La patologia è stata trattata secondo uno schema terapeutico chirurgico e farmacologico ben dettagliato. La raccolta di questi dati si prefigge lo scopo di pianificare, in accordo con la letteratura scientifica e la review dei case-report esistenti, linee guida nel percorso assistenziale di questa rara manifestazione di una comune malattia.

  3. Pancreas After Islet Transplantation: A First Report of the International Pancreas Transplant Registry.

    PubMed

    Gruessner, R W G; Gruessner, A C

    2016-02-01

    Pancreas after islet (PAI) transplantation is a treatment option for patients seeking insulin independence through a whole-organ transplant after a failed cellular transplant. This report from the International Pancreas Transplant Registry (IPTR) and the United Network for Organ Sharing (UNOS) studied PAI transplant outcomes over a 10-year time period. Forty recipients of a failed alloislet transplant subsequently underwent pancreas transplant alone (50%), pancreas after previous kidney transplant (22.5%), or simultaneous pancreas and kidney (SPK) transplant (27.5%). Graft and patient survival rates were not statistically significantly different compared with matched primary pancreas transplants. Regardless of the recipient category, overall 1- and 5-year PAI patient survival rates for all 40 cases were 97% and 83%, respectively; graft survival rates were 84% and 65%, respectively. A failed previous islet transplant had no negative impact on kidney graft survival in the SPK category: It was the same as for primary SPK transplants. According to this IPTR/UNOS analysis, a PAI transplant is a safe procedure with low recipient mortality, high graft-function rates in both the short and long term and excellent kidney graft outcomes. Patients with a failed islet transplant should know about this alternative in their quest for insulin independence through transplantation.

  4. Direction of the Organ Procurement and Transplantation Network and United Network for Organ Sharing regarding the oversight of live donor transplantation and solicitation for organs.

    PubMed

    Delmonico, F L; Graham, W K

    2006-01-01

    The Organ Procurement and Transplantation Network (OPTN) operated by United Network for Organ Sharing (UNOS) has taken recent steps to address public solicitation for organ donors and its oversight of live donor transplantation. This report provides the direction of the OPTN regarding deceased donor solicitation. The OPTN has authority under federal law to equitably allocate deceased donor organs within a single national network based upon medical criteria, not upon one's social or economic ability to utilize resources not available to all on the waiting list. The OPTN makes a distinction between solicitations for a live donor organ versus solicitations for directed donation of deceased organs. As to live donor solicitation, the OPTN cannot regulate or restrict ways relationships are developed in our society, nor does it seek to do so. OPTN members have a responsibility of helping protect potential recipients from hazards that can arise from public appeals for live donor organs. Oversight and support of the OPTN for live donor transplantation is now detailed by improving the reporting of live donor follow-up, by providing a mechanism for facilitating anonymous live kidney donation, and by providing information for potential live kidney donors via the UNOS Transplant Living website.

  5. Using Quantum Confinement to Uniquely Identify Devices

    PubMed Central

    Roberts, J.; Bagci, I. E.; Zawawi, M. A. M.; Sexton, J.; Hulbert, N.; Noori, Y. J.; Young, M. P.; Woodhead, C. S.; Missous, M.; Migliorato, M. A.; Roedig, U.; Young, R. J.

    2015-01-01

    Modern technology unintentionally provides resources that enable the trust of everyday interactions to be undermined. Some authentication schemes address this issue using devices that give a unique output in response to a challenge. These signatures are generated by hard-to-predict physical responses derived from structural characteristics, which lend themselves to two different architectures, known as unique objects (UNOs) and physically unclonable functions (PUFs). The classical design of UNOs and PUFs limits their size and, in some cases, their security. Here we show that quantum confinement lends itself to the provision of unique identities at the nanoscale, by using fluctuations in tunnelling measurements through quantum wells in resonant tunnelling diodes (RTDs). This provides an uncomplicated measurement of identity without conventional resource limitations whilst providing robust security. The confined energy levels are highly sensitive to the specific nanostructure within each RTD, resulting in a distinct tunnelling spectrum for every device, as they contain a unique and unpredictable structure that is presently impossible to clone. This new class of authentication device operates with minimal resources in simple electronic structures above room temperature. PMID:26553435

  6. [High-intensity chemotherapy versus palliative chemotherapy in patients over 60 years with acute myeloid leukemia].

    PubMed

    Medrano-Contreras, Jesús; Talavera-Piña, Juan Osvaldo; Guerrero-Rivera, Susana; Gutiérrez-Espíndola, Guillermo Rodolfo; Gómez-Cortés, Cynthia; Pérez-Rocha, Juan Fernando; Terreros-Muñoz, Eduardo; Meillón-García, Luis Antonio

    2016-01-01

    Introducción: el tratamiento con quimioterapia intensa (QTI) en pacientes con leucemia mieloblástica (LMA) mayores de 60 años es controversial. En el presente estudio se evaluó la remisión completa y la supervivencia global de pacientes con LMA mayores de 60 años, tratados con QTI o quimioterapia paliativa. Métodos: los pacientes con adecuada función orgánica y ECOG ≤ 2 recibieron QTI a base de citarabina por cinco o siete días más un antracíclico por tres días y terapia de soporte. En caso de lograr remisión completa de la leucemia recibieron uno o dos ciclos de consolidación con citarabina. El tratamiento paliativo consistió en medidas de soporte o quimioterapia oral o intravenosa en dosis bajas. Resultados: del grupo de QTI siete pacientes alcanzaron remisión completa, comparados con uno del grupo de quimioterapia paliativa. La supervivencia global fue de 13.25 meses para los pacientes con QTI y de 3.35 meses para los pacientes de quimioterapia paliativa (p < 0.05). Conclusión: es posible que los pacientes con LMA mayores de 60 años de edad se beneficien de recibir QTI, comparada con la quimioterapia paliativa.

  7. Comportamiento Sexual y Autoeficacia para la Negociación de Sexo Más Seguro en Personas Heterosexuales

    PubMed Central

    Pérez-Jiménez, David; Santiago-Rivas, Marimer; Serrano-García, Irma

    2012-01-01

    La autoeficacia se le ha identificado como uno de los factores que puede facilitar o dificultar llevar a cabo sexo más seguro. Estudios revelan que las personas que están el relaciones estables usan métodos de protección menos frecuente que quienes tienen parejas casuales. Realizamos un estudio con 447 personas heterosexuales activas sexualmente. Les administramos un cuestionario dirigido a medir el comportamiento sexual, el uso del condón masculino y la práctica de la masturbación mutua, y la autoeficacia para llevar a cabo estas conductas. Los resultados reflejan que los hombres están más activos sexualmente y que el uso del condón y la práctica de la masturbación mutua como alternativa de sexo más seguro es muy baja. En los casos donde se usa el condón esta práctica es realizada en su mayoría por las personas que se encuentran en una relación de pareja casual. No obstante, los/las participantes tienen altos niveles de autoeficacia hacia ambas prácticas. Aunque la autoeficacia es uno de los factores que incide en decidir llevar a cabo sexo más seguro, ésta no es suficiente para que esta meta se logre. PMID:22837585

  8. Financing the Airport of the Future: The Small Aircraft Transportation System

    NASA Technical Reports Server (NTRS)

    Bartle, John R.

    2000-01-01

    The objective of SATS is to reduce gridlock at hubs, reduce travel times, allow for personal control over travel, and anticipate demand shifts resulting from a migration from suburbs to rural places. The technology is presently available and economical to produce SATS aircraft. The public issue centers on the airports. SATS is a federal program, and many airports in the U.S. are under the control of local governments. The scope of the objective will require thousands of airports in rural and suburban areas to modify their infrastructure and increase their investment. Researchers at the University of Nebraska at Omaha (UNO), and others at other institutions, have prepared reports surveying the relevant issues of implementing SATS. Our UNO team focused on the issues of policy implementation, economic development, management, and finance specific to Nebraska. We are finding that these issues are similar to those in other states in our region and other rural states. This paper discusses how this investment might be financed.

  9. [Reliability and validity of an instrument to evaluate integral clinical competence in medical residents].

    PubMed

    Sepúlveda-Vildósola, Ana Carolina; Gaspar-López, Nadia; Reyes-Lagunes, Lucina Isabel; Gonzalez-Cabello, Héctor Jaime

    2015-01-01

    Introducción: la evaluación de la competencia clínica de un residente es un proceso complejo. Los profesores requieren de instrumentos confiables y válidos para evaluar objetivamente la competencia clínica. El objetivo fue evaluar la confiabilidad y validez de un instrumento (IECC) diseñado para evaluar la competencia clínica integral de los médicos residentes. Métodos: se diseñó un instrumento a partir de los diferentes pasos del método clínico, y se determinaron tres niveles de competencia para cada uno. El instrumento fue revisado respecto a su claridad, pertinencia y la suficiencia de sus indicadores planteados por cinco médicos pediatras expertos. Cada residente fue evaluado independientemente por tres médicos. Resultados: se obtuvieron en total 651 mediciones en 234 residentes. El instrumento discriminó entre grupos extremos. Se obtuvo un valor de alfa de Cronbach de 0.778 y el análisis factorial distinguió dos factores: competencia clínica y competencias complementarias. No se encontraron diferencias entre evaluadores en las calificaciones globales ni en cada uno de los indicadores. Conclusión: el instrumento propuesto es válido y confiable. Se propone como una herramienta más en la evaluación formativa de los médicos residentes de especialidades clínicas.

  10. Impact of geography on organ allocation: Beyond the distance to the transplantation center

    PubMed Central

    Ghaoui, Rony; Garb, Jane; Gordon, Fredric; Pomfret, Elizabeth

    2015-01-01

    AIM: To illustrate the application and utility of Geographic Information System (GIS) in exploring patterns of liver transplantation. Specifically, we aim to describe the geographic distribution of transplant registrations and identify disparities in access to liver transplantation across United Network of Organ Sharing (UNOS) region 1. METHODS: Based on UNOS data, the number of listed transplant candidates by ZIP code from 2003 to 2012 for Region 1 was obtained. Choropleth (color-coded) maps were used to visualize the geographic distribution of transplant registrations across the region. Spatial interaction analysis was used to analyze the geographic pattern of total transplant registrations by ZIP code. Factors tested included ZIP code log population and log distance from each ZIP code to the nearest transplant center; ZIP code population density; distance from the nearest city over 50000; and dummy variables for state residence and location in the southern portion of the region. RESULTS: Visualization of transplant registrations revealed geographic disparities in organ allocation across Region 1. The total number of registrations was highest in the southern portion of the region. Spatial interaction analysis, after adjusting for the size of the underlying population, revealed statistically significant clustering of high and low rates in several geographic areas could not be predicted based solely on distance to the transplant center or density of population. CONCLUSION: GIS represents a new method to evaluate the access to liver transplantation within one region and can be used to identify the presence of disparities and reasons for their existence in order to alleviate them. PMID:26167251

  11. Predictors and risk factors for recurrent scleroderma renal crisis in the kidney allograft: case report and review of the literature.

    PubMed

    Pham, Phuong-Thu T; Pham, Phuong-Chi T; Danovitch, Gabriel M; Gritsch, H Albin; Singer, Jennifer; Wallace, William D; Hayashi, Rick; Wilkinson, Alan H

    2005-10-01

    Scleroderma renal crisis (SRC) can lead to end-stage renal disease (ESRD) and subsequent need for dialysis and/or renal transplantation. We review all reported cases of renal transplantations in scleroderma patients from PubMed search, present UNOS data on transplant outcomes, and identify predictors for allograft SRC. Of the five cases with recurrent SRC, all developed ESRD within a year of onset of native kidney SRC, whereas none of those who developed ESRD more than 1-2 years after the onset of SRC developed recurrence. Anemia preceded allograft SRC in two cases, pericardial effusion in one, and skin tightening in two others. UNOS data (October 1987-July 2004) documented 260 transplants performed for the renal diagnosis of scleroderma, with a 5-year graft survival rate of 56.7%. The risk for allograft SRC recurrence appears to correlate with early native renal function loss following the onset of SRC. Recurrent SRC in the allograft may be heralded by multiple clinical markers known to be predictive of severe scleroderma, including progression of diffuse skin thickening, new-onset anemia and cardiac complications.

  12. Regional variability in symptom-based MELD exceptions: a response to organ shortage?

    PubMed

    Argo, C K; Stukenborg, G J; Schmitt, T M; Kumer, S C; Berg, C L; Northup, P G

    2011-11-01

    MELD (model for end-stage liver disease) exception awards affect the liver allocation process. Award rates of specific nonhepatocellular carcinoma exceptions, termed symptom-based exceptions (SBE), differ across UNOS regions. We aimed to characterize the regional variability in SBE awards and examine predictive factors for receiving a SBE in the MELD era. The OPTN liver transplant and waiting list dataset was analyzed for waiting list registrants during the MELD allocation on February 27, 2002, until November 22, 2006. Competing risks proportional hazards regression analysis was used to examine predictors for receiving a SBE in 39 169 registrants. The hazard ratios for receiving a SBE differed significantly across regions when adjusted for multiple variables including age, gender, ethnicity, physiologic MELD score, blood group, functional status, etiology of liver disease, insurer and education level. Utilization of SBE is highly significantly variable across UNOS regions, and does not correlate with organ availability as estimated by the regional mean physiologic MELD score at transplantation. Patients with Medicaid as their primary payer have a lower likelihood of receiving a SBE award, while patients with cryptogenic/NASH cirrhosis or cholestatic liver disease have a higher likelihood of receiving a SBE. Reasons for these regional and demographic disparities deserve further investigation.

  13. Primary CNS lymphoproliferative disease, mycophenolate and calcineurin inhibitor usage

    PubMed Central

    Crane, Genevieve M.; Powell, Helen; Kostadinov, Rumen; Rocafort, Patrick Tim; Rifkin, Dena E.; Burger, Peter C.; Ambinder, Richard F.; Swinnen, Lode J.; Borowitz, Michael J.; Duffield, Amy S.

    2015-01-01

    Immunosuppression for solid organ transplantation increases lymphoproliferative disease risk. While central nervous system (CNS) involvement is more rare, we noticed an increase in primary CNS (PCNS) disease. To investigate a potential association with the immunosuppressive regimen we identified all post-transplant lymphoproliferative disease (PTLD) cases diagnosed over a 28-year period at our institution (174 total, 29 PCNS) and all similar cases recorded in a United Network for Organ Sharing-Organ Procurement and Transplant Network (UNOS-OPTN) data file. While no PCNS cases were diagnosed at our institution between 1986 and 1997, they comprised 37% of PTLD cases diagnosed from 2011–2014. PCNS disease was more often associated with renal vs. other organ transplant, Epstein-Barr virus, large B-cell morphology and mycophenolate mofetil (MMF) as compared to PTLD that did not involve the CNS. Calcineurin inhibitors were protective against PCNS disease when given alone or in combination with MMF. A multivariate analysis of a larger UNOS-OPTN dataset confirmed these findings, where both MMF and lack of calcineurin inhibitor usage were independently associated with risk for development of PCNS PTLD. These findings have significant implications for the transplant community, particularly given the introduction of new regimens lacking calcineurin inhibitors. Further investigation into these associations is warranted. PMID:26460822

  14. A personal computer network system for equitable allocation of cadaver organs.

    PubMed

    Shimada, M; Akazawa, K; Moriguchi, S; Odaka, T; Nose, Y

    1991-01-01

    We developed a personal computer network system for the equitable allocation of cadaveric organs. This network consists of a host computer (IBM PS55 model 5570 T) and various kinds of personal computers manufactured by many different computer makers in Japan. The merits of our personal computer network include lower cost and an easy access to the host computer from all the centres participating in this network while using their own favourite personal computers. Among the programs made for allocating cadaveric organs, we present in this paper the program for livers. This program was developed with a modified version of the logic developed by Starzl et al. The grade modification for the United Network for Organ Sharing (UNOS) in the United States was used as the basis for classification of medical urgency. Our program weighed the factors of medical urgency, compatibility of blood group and waiting time. Distance factors were omitted because of the smaller area of the network compared to that of UNOS. This computer network would be linked to other computer networks in creating a national organ procurement and transplant network in Japan, in order to help them to catch up with other advanced transplant countries. Such an equal and objective computer system should allow organ transplantation to become more widely accepted.

  15. Creating Interdisciplinary STEM Environments at the University of Nebraska at Omaha

    NASA Astrophysics Data System (ADS)

    Shuster, R. D.; Grandgenett, N. F.

    2010-12-01

    Effective, integrated and interdisciplinary STEM environments depend upon strong faculty collaboration. During the past decade, the University of Nebraska at Omaha (UNO) has put an emphasis on STEM faculty working together across departments, colleges, and the university system, as well as with local school systems. Supported by a University-wide Content and Pedagogy Committee and a new Office of STEM Education, faculty members have aggressively undertaken and evaluated various interdisciplinary STEM activities. This presentation will briefly describe three of these projects, including evaluation-related data and UNO support mechanisms. First, an interdisciplinary student research project has been developed involving our introductory geology and chemistry courses. The project includes collecting drinking water samples from around Omaha by geology students, the chemical analysis of drinking water by chemistry students, followed by water quality analysis of the chemical data by the geology students. Students learn about the scientific method, potential problems with project design, and limitations of interpretation of real data, while also applying knowledge learned in the class to this real world problem. This project reaches ~600 undergraduate students each year and requires close cooperation between faculty of the Chemistry and Geology programs. Evaluation data indicates that this project has had a positive impact on student attitude towards science in general and towards geology and chemistry in particular. The second project highlighted will be the Silicon Prairie Initiative for Robotics in Information Technology (SPIRIT). The SPIRIT project is a NSF funded collaboration between the UNO College of Education, the University of Nebraska at Lincoln College of Engineering, and local school systems. It strives to integrate the use of educational robotics and sensors in the teaching of STEM topics, particularly at the middle school and high school levels. The project

  16. An approach to complicated diverticular disease. A retrospective study in an Acute Care Surgery service recently established.

    PubMed

    Occhionorelli, Savino; Zese, Monica; Tartarini, Daniela; Lacavalla, Domenica; Maccatrozzo, Stefano; Groppo, Giacomo; Sibilla, Maria Grazia; Stano, Rocco; Cappellari, Lorenzo; Vasquez, Giorgio

    2016-01-01

    Obiettivo: La patologia diverticolare acuta è attualmente molto frequente nei paesi occidentalizzati. L’aumento costante del numero dei pazienti ricoverati nelle Unità operative di Chirurgia per il trattamento d’Urgenza sta portando alla necessità di individuare nuove Classificazioni e Scores per il corretto e razionale trattamento medico e chirurgico, anche in relazione all’assenza di linee guida ufficiali. Metodi: Si tratta di uno studio retrospettivo che prende in considerazione tutti i pazienti ricoverati presso il nostro Dipartimento, con diagnosi di diverticolite acuta perforata, nel periodo di tempo compreso tra giugno 2010 e marzo 2015. Risultati: Nel nostro studio 41 pazienti sono stati trattati conservativamente. I restanti 58 pazienti sono stati sottoposti ad intervento chirurgico: 25 con procedura di Hartmann, 29 con intervento di resezione e consensuale confezionamento di anastomosi senza ileostomia di protezione, 3 pazienti sono stati sottoposti a riparazione diretta della lesione diverticolare (rafia) e 2 a lavaggio peritoneale laparoscopico con posizionamento di drenaggio. Di questi ultimi due pazienti, uno è stato dimesso dopo 7 giorni in buone condizioni cliniche generali ed uno è stato poi sottoposto a resezione e confezionamento di anastomosi. Abbiamo correlato i pazienti suddividendoli nei vari gruppi Hinchey modificati e sovragruppi, associandoli ai diversi trattamenti, identificandone i fattori di rischio, l’ASA score e le complicanze. Discussione: L’utilizzo di nuove tecnologie, come la TC, si sta rivelando molto utile per la diagnosi delle diverticoliti perforate. Il loro trattamento è invece ancora piuttosto dibattuto: per i pazienti Hinchey I e II è, tendenzialmente conservativo, a meno di fattori concomitanti che ne pregiudichino l’andamento clinico. I pazienti Hinchey III e IV sono di competenza chirurgica. Il trattamento preferenziale è la procedura di Hartmann ma negli ultimi anni la resezione con consensuale

  17. Liver Transplantation Without the Use of Blood Products

    PubMed Central

    Ramos, Hector C.; Todo, Satoru; Kang, Yoogoo; Felekouras, Evangelos; Doyle, Howard R.; Starzl, Thomas E.

    2010-01-01

    Objectives To examine the techniques and the outcome of liver transplantation with maximal conservation of blood products and to analyze the potential benefits or drawbacks of blood conservation and salvage techniques. Design Case series survey. Setting Tertiary care, major university teaching hospital. Patients and Methods Four patients with religious objections to blood transfusions who were selected on the basis of restrictive criteria that would lower their risk for fatal hemorrhage, including coagulopathy, a thrombosed splanchnic venous system requiring extensive reconstruction, active bleeding, and associated medical complications. All patients were pretreated with erythropoietin to increase production of red blood cells. All operations were performed at the same institution, with a 36-month follow-up. Interventions Orthotopic liver transplantation that used blood salvage, plateletpheresis, and autotransfusion and the withholding of the use of human blood products with the exception of albumin. Main Outcome Measures Survival and postoperative complications, with the effectiveness of erythropoietin and plateletpheresis as secondary measures. Results All patients are alive at 36 months after orthotopic liver transplantation. One patient, a minor (13 years of age), was transfused per a state court ruling. Erythropoietin increased the production of red blood cells as shown by a mean increase in hematocrit levels of 0.08. Plateletpheresis allowed autologous, platelet-rich plasma to be available for use after allograft reperfusion. Three major complications were resolved or corrected without sequelae. Only one patient developed postoperative hemorrhage, which was corrected surgically. The mean charge for bloodless surgery was $174 000 for the three patients with United Network for Organ Sharing (UNOS) status 3 priority for transplantation. This result was statistically significant when these patients were compared with all the patients with UNOS status 3 priority

  18. An Evaluation of the Usefulness of Extracorporeal Liver Support Techniques in Patients Hospitalized in the ICU for Severe Liver Dysfunction Secondary to Alcoholic Liver Disease

    PubMed Central

    Piechota, Mariusz; Piechota, Anna

    2016-01-01

    Background The mortality rate in patients with severe liver dysfunction secondary to alcoholic liver disease (ALD) who do not respond to the standard treatment is exceptionally high. Objectives The main aim of this study was to evaluate the usefulness of applying extracorporeal liver support techniques to treat this group of patients. Patients and Methods The data from 23 hospital admissions of 21 patients with ALD who were admitted to the department of anesthesiology and intensive therapy (A&IT) at the Dr Wł. Biegański Regional Specialist Hospital in Łódź between March 2013 and July 2015 were retrospectively analyzed. Results A total of 111 liver dialysis procedures were performed during the 23 hospitalizations, including 13 dialyses using fractionated plasma separation and adsorption (FPSA) with the Prometheus® system, and 98 procedures using the single pass albumin dialysis (SPAD) system. Upon admission to the intensive care unit (ICU), the median (interquartile range [IQR]) Glasgow coma scale (GCS), sequential organ failure assessment (SOFA), acute physiology and chronic health evaluation (APACHE) II, and simplified acute physiology score (SAPS) II scores were 15 (14 - 15), 9 (7 - 13), 17 (14 - 24), and 32 (22 - 50), respectively. The ICU, 30-day, and three-month mortality rates were 43.48%, 39.13%, and 73.91%, respectively. As determined by the receiver operative characteristic (ROC) analysis for single-factor models, the significant predictors of death in the ICU included the patients’ SOFA, APACHE II, SAPS II, and model of end-stage liver disease modified by the united network for organ sharing (MELD UNOS Modification) scores; the duration of stay (in days) in the A&IT Department; and bile acid, creatinine and albumin levels upon ICU admission. The ROC analysis indicated the significant discriminating power of the SOFA, APACHE II, SAPS II, and MELD UNOS modification scores on the three-month mortality rate. Conclusions The application of

  19. [Update of the stability of drugs cytostatic drugs by applying the methodology of the matrix of risk for the manufacture of sterile drugs].

    PubMed

    Usarralde-Pérez, Ángela; Toro-Chico, Piedad; Pérez-Encinas, Montserrat

    2016-06-01

    Objetivo: Establecer unos plazos de validez de los viales abiertos y/o reconstituidos y de las mezclas citostáticas según su estabilidad fisicoquímica, el nivel de riesgo y los requisitos de preparación asignados por la matriz de riesgo de la Guía de Buenas Prácticas de Preparación de Medicamentos en los Servicios de Farmacia Hospitalaria. Método: Se elaboró una tabla de estabilidades con los medicamentos citostáticos. Los datos de estabilidad fisicoquímica se obtuvieron de fichas técnicas y revisiones bibliográficas. El nivel de riesgo fue asignado por la matriz de riesgo en función de los requisitos de cada preparación. Cuando la estabilidad fisicoquímica era igual o superior a la indicada por la matriz, se asumieron los plazos de validez de la matriz; en caso contrario, los plazos de validez coincidieron con el periodo máximo de estabilidad fisicoquímica. Resultados: Se revisaron 61 fármacos. Se asumió el plazo de validez físico-química en el 45,9% de los viales abiertos/ reconstituidos y en el 50,8% de las mezclas citostáticas, y el indicado por la matriz de riesgo en el resto, respectivamente. Según la matriz, el nivel de riesgo fue medio en todos los medicamentos citostáticos salvo en uno, que resultó de riesgo alto. Ningún medicamento resultó de riesgo bajo. Conclusiones: Para asignar el plazo de validez de los viales abiertos/reconstituidos y de las mezclas citostáticas no solo es necesario tener en cuenta los datos de estabilidad físico-química, sino también el nivel de riesgo y los requisitos de preparación, permitiendo unos plazos de validez más adecuados.

  20. Nonlinear Propagation of Mag Waves Through the Transition Region

    NASA Astrophysics Data System (ADS)

    Jatenco-Pereira, V.; Steinolfson, R. S.; Mahajan, S.; Tajima, T.

    1990-11-01

    RESUMEN. Una onda de gravitaci5n magneto acustica (GMA), se inicia en el regimen de alta beta cerca de la basa de fot5sfera solar y es segui- da, usando simulaciones numericas, mientras viaja radialmente a traves de la cromosfera, la regi5n de transici6n y dentro de la corona. Se ha' seleccionado parametros iniciales de manera que la beta resulte menor que uno cerca de la parte alta de la regi6n de transici6n. Nuestro interes maximo se concentra en la cantidad y forma del flujo de energia que puede ser llevada por la onda hasta la corona dados una atm6sfera inicial y amplitud de onda especificas. Segun los estudios a la fecha, el flujo de energ1a termico domina, aumentando linealmente con la ampli tud deonda y resulta de aproximadamente i05 ergs/cm2-s en una amplitud de 0.5. El flujo de energia cinetica siempre permanece despreciable, mientras que el flujo de energia magnetica depende de la orientaci5n inicial del campo. Un modo GMA rapido y casi paralelo, el cual es esen- cialmente un modo MHD en la corona se convierte a un modo rapido modificado y a uno lento, cuando la beta atmosferica disminuye a uno. ABSTRACT: A magneto-acoustic-gravity (MAG) wave is initiated in the high-beta regime near the base of the solar photosphere and followed, using numerical siriiulations, as it travels radially through the chromosphere, the transition region, and into the corona. Initial parameters are selected such that beta becomes less than one near the top of the transition region. Our primary interest is in the amount and form of energy flux that can be carried by the wave train into the corona for a specified initial atmosphere and wave amplitude. For the studies conducted to date, the thermal energy flux dominates, it about linearly with wave amplitude and becomes approximately 10 ergs/cm2-s at an amplitude of 0.5. The kinetic energy flux always remains negligible, while the magnetic energy flux depends on the inLtial field orientation. A nearly parallel fast MAG mode, which

  1. A high incidence of native portal vein thrombosis in veterans undergoing liver transplantation.

    PubMed

    Gayowski, T J; Marino, I R; Doyle, H R; Echeverri, L; Mieles, L; Todo, S; Wagener, M; Singh, N; Yu, V L; Fung, J J; Starzl, T E

    1996-02-01

    The incidence of native portal vein thrombosis (PVT) in liver transplant recipients has been reported to range from 2.1 to 13.8%. We have identified an inordinately high incidence of PVT in a consecutive series of U.S. veterans receiving liver transplants. Between October 1989 and February 1994, 88 consecutive U.S. veterans received 99 orthotopic liver transplants under primary Tacrolimus (Prograf, formerly FK506) based immunosuppression. A number of clinical features were examined in an effort to identify risk factors for PVT and outcome was compared to patients without PVT. Native PVT was present in 23/88 (26%) patients. All of these patients were male U.S. veterans with a mean age of 47 years. When compared to the 65 patients without PVT, we found no significant difference with respect to underlying liver disease, age, Childs-Pugh score (mean = 12), UNOS status as defined prior to April 1995 (95% UNOS 3 or 4), previous abdominal surgery, or liver volume. Median blood loss for patients with PVT (21 units of packed red blood cells) was greater than for those without PVT (14 units, P = 0.04). Portal thrombectomy was performed in 11 patients, 11 patients required mesoportal jump grafts, and 1 patient had an interposition graft. Standard veno-venous bypass was used in 10 patients with single bypass utilized for the remainder. Actuarial patient survival for all patients at 1, 2, and 4 years was 88, 85, and 79%, respectively. There was no significant difference in patients with or without PVT. Patients with PVT had poorer graft survival than patients without PVT (86% vs 65%, 1 year; 81% vs 65%, 2 years; 81% vs 61%, 4 years; P = 0.03); however, this was not related to technical problems with the portal venous inflow. PVT occurred in 26% of U.S. veterans undergoing liver transplantation. These patients had significantly higher operative blood loss and poorer graft survival. The high incidence of postnecrotic cirrhosis in a predominantly male group of patients with

  2. Assessing Stream Ecosystem Metabolism and Nitrate Utilization at Reduced Nitrate Levels Using a Chamber-Based Approach: Looking Below, Scaling Up, and Thinking Inside the Box

    NASA Astrophysics Data System (ADS)

    Reijo, C. J.; Cohen, M. J.

    2014-12-01

    As nitrate levels in lotic systems have increased, nutrient reduction strategies have become the centerpiece of water quality standards to protect and restore stream ecosystems. While reducing anthropogenic nitrate (NO3) loads has many positive effects, we lack a fundamental understanding of how lotic systems respond to changing concentrations and no methods exist to characterize nutrient uptake behavior below ambient levels. Therefore, it is difficult to predict whether nutrient reductions will meet management goals. To fill this knowledge gap, we developed a chamber-based method which allows characterization of NO3 utilization along the two major uptake pathways at reduced NO3 levels. The chamber blocks flow by insertion into upper sediments but allows light in and sediment-water-air interactions to occur. At Gum Slough Springs, Florida, high-resolution in-situ sensors measured water quality while NO3 reduced from ambient levels (1.40 mg N/L) to below regulatory thresholds (ca. 0.20 mg N/L) within one week. Daytime NO3 uptake, resulting from both plant uptake and denitrification, was consistently greater than nighttime uptake, which is denitrification alone. Using this method, we compared NO3 uptake rates (UNO3) and gross primary production (GPP) across three vegetative regimes (i.e. submerged aquatic vegetation (SAV), SAV with epiphytic algae, and algae alone) and related GPP estimates from the chamber to reach scale. Results showed that UNO3 and GPP were greatest in SAV, GPP was negatively correlated to [NO3] in algae, denitrification rates did not vary by vegetation type, and chamber GPP (e.g. 6-8 g O2/m2/day in SAV) was comparable to reach-scale estimates (6-12 g O2/m2/day). Our results suggest UNO3 and GPP differ by vegetation regimes, GPP scales from chamber to reach level, algal presence potentially reduces GPP, and a lack of nutrient limitation even at low [NO3]. Current work includes replicating measurements across systems as well as refining the

  3. PubMed

    Martín Castellanos, Ángel; Cabañas Armesilla, María Dolores; Barca Durán, Francisco Javier; Martín Castellanos, Pedro; Gómez Barrado, José Javier

    2017-02-01

    Introducción: la obesidad es un factor de riesgo asociado al infarto de miocardio aunque el índice cintura-cadera ha mostrado mayor poder predictivo.Objetivo: análisis antropométrico Receiver Operating Characteristic(ROC) en infartados para identificar la fuerza discriminatoria de mediciones, obesidad, ratios cintura-cadera, ratios cintura-talla e índice de conicidad.Métodos: estudio caso-control de infarto miocárdico en varones europeos. Ciento doce casos/112 controles de 30-74 años fueron reclutados. Se midieron: peso, talla, cintura, cintura umbilical y cadera. Se obtuvieron las áreas bajo la curva (ABC), las odds ratioy correlaciones de medidas e indicadores.Resultados: IMC [ABC: 0,686 (0,616-0,755); OR: 3,3], cintura [ABC: 0,734 (0,668-0,800); OR: 5,7], talla [ABC: 0,623 (0,550-0,696); OR: 2,3], cadera [ABC: 0,555 (0,479-0,631); OR: 1], cintura-cadera [ABC: 0,796 (0,737-0,855); OR: 9,9]; cintura umbilical-cadera [ABC:0,830 (0,775-0,885); OR: 5,5], cintura umbilical-talla [ABC: 0,788 (0,729-0,847); OR: 7,5]; conicidad [ABC: 0,795 (0,738-0,853); OR:9]. Cintura-talla y conicidad presentaron altas correlaciones de riesgo (todas r ≥ 0,85; p < 0,001).Conclusiones: cintura y talla son medidas con riesgo independiente asociado. La circunferencia de cadera no es discriminatoria. Obesidad e índices de cintura están asociados al infarto con diferente fuerza. La obesidad presenta una asociación débil. Los índices cintura-cadera presentan las mejores curvas ROC, pero sesgadas en su poder predictivo de riesgo. Cintura umbilical-talla y conicidad presentan alto poder discriminatorio y mejores correlaciones antropométricas de riesgo, por lo que se recomienda su uso en la identificación de la obesidad como factor asociado al infarto de miocardio y en todas las estrategias de promoción de la salud coronaria.

  4. [Food habits and nutritional assessment in a university population].

    PubMed

    Cervera Burriel, Faustino; Serrano Urrea, Ramón; Vico García, Cruz; Milla Tobarra, Marta; García Meseguer, Mariá José

    2013-01-01

    Introducción: Los estudiantes universitarios se encuentran en un periodo crítico para el desarrollo de estilos de vida que tienen mucha importancia en su futura salud, ya que la influencia en el comportamiento alimentario de los compañeros, el consumo de alcohol, su situación económica y la habilidad para cocinar hacen que cambien sus hábitos de alimentación. Los pocos estudios en España sobre calidad de la dieta en este grupo de población reflejan mayoritariamente un inadecuado seguimiento del patrón mediterráneo. Objetivos: Caracterizar los hábitos alimentarios en una población de estudiantes universitarios y evaluar la calidad de su dieta. Métodos: Estudio transversal de una muestra de 80 estudiantes de la Facultad de Enfermería de Albacete (Universidad de Castilla-La Mancha). Los datos se recogieron mediante 9 recordatorios de 24 horas autoadministrados en tres periodos estacionales. El IAS y el MDS2 han sido usados como indicadores de la calidad de la dieta. En todas las pruebas el nivel de significación utilizado fue de 0,05. Resultados y discusión: La dieta de los estudiantes es ligeramente hipocalórica. La contribución de los macronutrientes a la energía total diaria la definen como hiperproteica (17%), pobre en hidratos de carbono, alrededor del 40%, casi duplica las recomendaciones de azúcares simples y es alta en grasa saturada y colesterol. La principal fuente de grasa son los alimentos cárnicos, mientras que el grupo del pescado sólo representa el 3,1%. La ingesta de cárnicos y lácteos supera ampliamente a la de poblaciones universitarias en otros países mediterráneos europeos. Más del 91% de los estudiantes se encuentra en una situación de «necesidad de cambios en la dieta» hacia patrones más saludables. La adherencia a la dieta mediterránea fue sólo del 53%.

  5. Impact of the consumption of a rich diet in butter and it replacement for a rich diet in extra virgin olive oil on anthropometric, metabolic and lipid profile in postmenopausal women.

    PubMed

    Anderson-Vasquez, Hazel Ester; Pérez-Martínez, Pablo; Ortega Fernández, Pablo; Wanden-Berghe, Carmina

    2015-06-01

    Objetivo: analizar el impacto de la sustitución de una dieta rica en grasas saturadas por una dieta rica en grasas monoinsaturadas sobre el perfil antropométrico, metabólico y lipídico en mujeres postmenopáusicas. Material y método: estudio prospectivo, longitudinal y comparativo en el que 18 mujeres postmenopáusicas participaron en dos períodos de intervención dietética de 28 días cada uno: 1) (dieta SAT) consumieron mantequilla. Fórmula calórica (FC) = 15% de proteínas, 38% grasas. [20% grasas saturadas (AGS), 12% grasas monoinsaturadas (AGM) y 47% carbohidratos y 6% poliinsaturadas (AGPI)]. 2) Periodo MONO: con aceite de oliva virgen extra (AOVE). Fórmula calórica = 15% de proteínas, 38% grasas (.

  6. Manual del espectrógrafo multifunción de Bosque Alegre

    NASA Astrophysics Data System (ADS)

    Díaz, R.; Paolantonio, S.; Carranza, G.; Goldes, G.

    Este manual consta de 120 páginas y resume las características del Espectrógrafo Multifunción instalado en el telescopio de 1.54 m de la Estación Astrofísica de Bosque Alegre. En este trabajo se describen, además, las técnicas a emplear para su puesta a punto y la secuencia de operaciones para la obtención de datos en cada uno de los modos que ya se encuentran en funcionamiento. Parte de este trabajo se realizó con el apoyo de la Asociación Argentina de Astronomía, a través de becas otorgadas a R.D. y S.P..

  7. [Concept of "opinion leader": Recommendations of the Committee on Ethics and Transparency in the Medical-Industry Relationship (CETREMI) of the National Academy of Medicine (ANM)].

    PubMed

    Burgos, Rubén; Aguilar-Salinas, Carlos Alberto; Barile-Fabris, Leonor; Rangel-Fraustro, Manuel Sigfrido; Arrieta, Óscar; Campillo, Carlos; Celis, Miguel Ángel; Llata, Manuel de la; Domínguez, Judith; Halabe, José; Islas, Sergio; Jasso, Luis; Lifshitz, Alberto; Moreno, Mucio; Plancarte, Ricardo; Reyes, Alejandro; Soda, Antonio; Verástegui, Emma; Sotelo, Julio

    2017-01-01

    La relación que involucra al médico y la industria abarca un espectro amplio de formas, para lo cual se requiere una exposición clara y transparente de términos y principios. Uno de los objetivos primordiales de la industria es contar con un respaldo académico que le permita dar a conocer las características y las propiedades de sus productos -eficacia, eficiencia y seguridad- con el propósito de ser prescritos y usados. Los fines de la industria son la venta de sus productos, el reconocimiento como empresas de prestigio y la ganancia económica. Implícitamente, para CETREMI el principio de mayor importancia en esta relación es indudablemente el beneficio del enfermo.

  8. Research and implement of remote vehicle monitoring and early-warning system based on GPS/GPRS

    NASA Astrophysics Data System (ADS)

    Li, Shiwu; Tian, Jingjing; Yang, Zhifa; Qiao, Feiyan

    2013-03-01

    Concerning the problem of road traffic safety, remote monitoring and early-warning of vehicle states was the key to prevent road traffic accidents and improve the transportation effectiveness. Through the embedded development technology, a remote vehicle monitoring and early-warning system was developed based on UNO2170 industrial computer of Advantech with WinCE operating system using Embedded Visual C++ (EVC), which combined with multisensor data acquisition technology, global positioning system (GPS) and general packet radio service (GPRS). It achieved the remote monitoring and early-warning of commercial vehicle. This system was installed in a CA1046L2 light truck. Through many road tests, test results showed that the system reacted rapidly for abnormal vehicle states and had stable performance.

  9. Electronic Principles Inventory, Lowry Technical Training Center

    DTIC Science & Technology

    1990-03-01

    BACKGROUND .. .. ..... ...... ....... .......... 1 EXAM 𔃻PLE EPI QUESTIONS. .. .. ..... ...... ....... .... 2 SURVEY ADMINISTRATION...4 < H o In a io, r N t t %tin In r o t o0 a co r in %tr p1 -40a, %rON.1 o oUNoI = wN t, : . In -r N rN𔃺,t-oInO co In \\0 coco r PN %a N .0 toco cN tN...U.1 0U 2 4 )) 0 0 0)O U0 𔃼 : P1 m) 0)2 N4 02 NO4 ’a N c- L ’ >W 𔃾 0 qV 01 04 L . U)- ML ’.0 44 4 4’ (4 4 N 0 3 ’ -4 "𔃾 c. 4 0 4) 4 0410 10 c 0. (44

  10. The first geocenter estimation results using GPS measurements

    NASA Technical Reports Server (NTRS)

    Malla, R. P.; Wu, S. C.

    1990-01-01

    The center of mass of the Earth is the natural and unambiguous origin of a geocentric satellite dynamical system. A geocentric reference frame assumes that the origin of its coordinate axes is at the geocenter, in which all relevant observations and results can be referred and in which geodynamic theories or models for the dynamic behavior of Earth can be formulated. In practice, however, a kinematically obtained terrestrial reference frame may assume an origin other than the geocenter. A fast and accurate method of determining origin offset from the geocenter is highly desirable. Global Positioning System (GPS) measurements, because of their abundance and broad distribution, provide a powerful tool to obtain this origin offset in a short period of time. Two effective strategies have been devised. Data from the first Central and South America (Casa Uno) global GPS experiment were studied to demonstrate the ability of recovering the geocenter location with present-day GPS satellites and receivers.

  11. Competencias en ética biocéntrica

    PubMed Central

    Stepke, Fernando Lolas

    2013-01-01

    Resumen Este artículo explora el origen y la conceptualización de la bioética en tanto ética biocéntrica, definida por el pionero Fritz Jahr como un imperativo hipotético que llama a respetar la vida en todas sus formas. Tras describirla como proceso social, procedimiento técnico y producto académico, se enumeran y comentan algunas competencias que debieran presidir el empleo del discurso bioético en cualquier punto del complejo social “investigación médica”: miembros de comités de ética de investigación, investigadores, empresarios, administradores. Cada uno de estos grupos, en su “cultura epistémica” propia, define y explicita los principios básicos en tanto expresión de valores y leyes generales. PMID:23459767

  12. Selected Manpower Statistics, FY-71

    DTIC Science & Technology

    1972-04-15

    total population. Ik I t UHU) Mllitafjr mBBm «•mi, ■M.lA.Tfl »TU i J . JB :2 Ml.on *^»/ M.O MOO m.’n —.tu ■tllunr i emu« Vmjm S:2S M M...KIUTAW POUTWIH, 1923 - wa «3.2 1 Total Ik of Defer 1»t. | *nwi/ 1 N.»y (.» lulli « 1 Cotat (hard) ItarlM . -_SSCSL. i...W,8J9 M »».»5T »T 1 x m H 10,000 10,178 10,17» »11.8»! »b 7 tl 1 B 11,000 u,no ia,iM »11,108 * JB .»8» »L 1 H M In

  13. The Conference Proceedings of the 1997 Air Transport Research Group (ATRG) of the WCTR Society. Volume 1

    NASA Technical Reports Server (NTRS)

    Own, Tae Hoon (Editor); Bowen, Brent D. (Editor)

    1997-01-01

    The Aviation Institute University of Nebraska at Omaha (UNO) Monograph series has published the Conference Proceedings of the 1997 Air Transport Research Group (ATRG) of the World Conference on Transportation Research Society (WCTR) volume 1, number 3. The topics included in this document are: 1) Industrial Reform and Air Transport Development in China; 2) The Economic Effects of Airline Deregulation and the Open-Sky Policy of Korea; 3) The Economic Effects of Airline Deregulation and the Open-Sky Policy of Korea; 4) "Open Skies" in India-Is the policy succeeding? 5) The Japanese Domestic Air Fares under the Regulatory Regime: What will be expected after the revision of current charging system? 6) The Competitive Position of Airline Networks; and 7) Air Transport and Regional Economic Development in the European Union.

  14. Rotorcraft Design for Operations Held in Amsterdam, Netherlands on 13-16 October 1986

    DTIC Science & Technology

    1987-06-01

    NATUREL MOIEN 0.3, V 200 kinM V=29okm~l 0.3- V 200 km/h V=20ka1 0.2 0.2 0 d k100 100 TEMPOS t) TEMPS (s) Fi.6: :SIMULA TION DES ALGORITHM ES EN TEAMP...visour ou d’uno arm*. Certain$ ý.ypos do viseurs ont 6galeount I* t~e. d’Stre I - apte I Atre un capteur V~isage & fort grossissemant at stabilimsas dens...du pilots ou du cop ilote. - un oystbme d’dmetteure at do capteurs permettent I* reconstitution de Ia position dt I& ligno ’ta visA.. Loe arvemete soot

  15. An automatic editing algorithm for GPS data

    NASA Technical Reports Server (NTRS)

    Blewitt, Geoffrey

    1990-01-01

    An algorithm has been developed to edit automatically Global Positioning System data such that outlier deletion, cycle slip identification, and correction are independent of clock instability, selective availability, receiver-satellite kinematics, and tropospheric conditions. This algorithm, called TurboEdit, operates on undifferenced, dual frequency carrier phase data, and requires the use of P code pseudorange data and a smoothly varying ionospheric electron content. TurboEdit was tested on the large data set from the CASA Uno experiment, which contained over 2500 cycle slips.Analyst intervention was required on 1 percent of the station-satellite passes, almost all of these problems being due to difficulties in extrapolating variations in the ionospheric delay. The algorithm is presently being adapted for real time data editing in the Rogue receiver for continuous monitoring applications.

  16. PubMed

    Barrantes-Monge, Melba; Rodríguez, Eduardo; Lama, Alexis

    2009-01-01

    Existen prejuicios en relación con la vejez, incluso entre los profesionales que se dedican a la gerontología. Uno común y peligroso es considerar que los viejos son todos enfermos o discapacitados.La relación médico-paciente es la piedra angular de la práctica y ética médicas. Para alcanzar el respeto por los adultos mayores es necesaria una medicina prudente, basada en una práctica en la cual la reflexión ética y clínica pueda contribuir. Esto último es posible si se hacen valer los derechos del adulto mayor, en particular como paciente para la toma de decisiones.

  17. Using satellite images to monitor glacial-lake outburst floods: Lago Cachet Dos drainage, Chile

    USGS Publications Warehouse

    Friesen, Beverly A.; Cole, Christopher J.; Nimick, David A.; Wilson, Earl M.; Fahey, Mark J.; McGrath, Daniel J.; Leidich, Jonathan

    2015-01-01

    During 2008–2013, 14 GLOFs were released from Lago Cachet Dos and created environmental and safety concerns for downstream residents and to infrastructure. If GLOFs and the consequent headward erosion continue, the moraine that creates Lago Cachet Uno could be destabilized and breached, and the two lakes could merge. If the two lakes become connected, the volume of future GLOFs likely would be greater and thus cause longer and (or) more extensive flooding downstream. Additional GLOFs from Lago Cachet Dos are expected in the future, and continued environmental monitoring could provide an early warning system as well as scientific information that could increase our understanding of GLOFs and their consequences. GLOFs occur in glaciated areas around the world and remote sensing technologies can allow researchers to better understand—and potentially predict—future GLOF events.

  18. Development of a working Hovercraft model

    NASA Astrophysics Data System (ADS)

    Noor, S. H. Mohamed; Syam, K.; Jaafar, A. A.; Mohamad Sharif, M. F.; Ghazali, M. R.; Ibrahim, W. I.; Atan, M. F.

    2016-02-01

    This paper presents the development process to fabricate a working hovercraft model. The purpose of this study is to design and investigate of a fully functional hovercraft, based on the studies that had been done. The different designs of hovercraft model had been made and tested but only one of the models is presented in this paper. In this thesis, the weight, the thrust, the lift and the drag force of the model had been measured and the electrical and mechanical parts are also presented. The processing unit of this model is Arduino Uno by using the PSP2 (Playstation 2) as the controller. Since our prototype should be functioning on all kind of earth surface, our model also had been tested in different floor condition. They include water, grass, cement and tile. The Speed of the model is measured in every case as the respond variable, Current (I) as the manipulated variable and Voltage (V) as the constant variable.

  19. Arduino based radiation survey meter

    NASA Astrophysics Data System (ADS)

    Rahman, Nur Aira Abd; Lombigit, Lojius; Abdullah, Nor Arymaswati; Azman, Azraf; Dolah, Taufik; Muzakkir, Amir; Jaafar, Zainudin; Mohamad, Glam Hadzir Patai; Ramli, Abd Aziz Mhd; Zain, Rasif Mohd; Said, Fazila; Khalid, Mohd Ashhar; Taat, Muhamad Zahidee

    2016-01-01

    This paper presents the design of new digital radiation survey meter with LND7121 Geiger Muller tube detector and Atmega328P microcontroller. Development of the survey meter prototype is carried out on Arduino Uno platform. 16-bit Timer1 on the microcontroller is utilized as external pulse counter to produce count per second or CPS measurement. Conversion from CPS to dose rate technique is also performed by Arduino to display results in micro Sievert per hour (μSvhr-1). Conversion factor (CF) value for conversion of CPM to μSvhr-1 determined from manufacturer data sheet is compared with CF obtained from calibration procedure. The survey meter measurement results are found to be linear for dose rates below 3500 µSv/hr.

  20. Measuring the RC time constant with Arduino

    NASA Astrophysics Data System (ADS)

    Pereira, N. S. A.

    2016-11-01

    In this work we use the Arduino UNO R3 open source hardware platform to assemble an experimental apparatus for the measurement of the time constant of an RC circuit. With adequate programming, the Arduino is used as a signal generator, a data acquisition system and a basic signal visualisation tool. Theoretical calculations are compared with direct observations from an analogue oscilloscope. Data processing and curve fitting is performed on a spreadsheet. The results obtained for the six RC test circuits are within the expected interval of values defined by the tolerance of the components. The hardware and software prove to be adequate to the proposed measurements and therefore adaptable to a laboratorial teaching and learning context.

  1. An Inexpensive, Open-Source USB Arduino Data Acquisition Device for Chemical Instrumentation.

    PubMed

    Grinias, James P; Whitfield, Jason T; Guetschow, Erik D; Kennedy, Robert T

    2016-07-12

    Many research and teaching labs rely on USB data acquisition devices to collect voltage signals from instrumentation. However, these devices can be cost-prohibitive (especially when large numbers are needed for teaching labs) and require software to be developed for operation. In this article, we describe the development and use of an open-source USB data acquisition device (with 16-bit acquisition resolution) built using simple electronic components and an Arduino Uno that costs under $50. Additionally, open-source software written in Python is included so that data can be acquired using nearly any PC or Mac computer with a simple USB connection. Use of the device was demonstrated for a sophomore-level analytical experiment using GC and a CE-UV separation on an instrument used for research purposes.

  2. An Open-Source Automated Peptide Synthesizer Based on Arduino and Python.

    PubMed

    Gali, Hariprasad

    2017-01-01

    The development of the first open-source automated peptide synthesizer, PepSy, using Arduino UNO and readily available components is reported. PepSy was primarily designed to synthesize small peptides in a relatively small scale (<100 µmol). Scripts to operate PepSy in a fully automatic or manual mode were written in Python. Fully automatic script includes functions to carry out resin swelling, resin washing, single coupling, double coupling, Fmoc deprotection, ivDde deprotection, on-resin oxidation, end capping, and amino acid/reagent line cleaning. Several small peptides and peptide conjugates were successfully synthesized on PepSy with reasonably good yields and purity depending on the complexity of the peptide.

  3. Arduino-based noise robust online heart-rate detection.

    PubMed

    Das, Sangita; Pal, Saurabh; Mitra, Madhuchhanda

    2017-04-01

    This paper introduces a noise robust real time heart rate detection system from electrocardiogram (ECG) data. An online data acquisition system is developed to collect ECG signals from human subjects. Heart rate is detected using window-based autocorrelation peak localisation technique. A low-cost Arduino UNO board is used to implement the complete automated process. The performance of the system is compared with PC-based heart rate detection technique. Accuracy of the system is validated through simulated noisy ECG data with various levels of signal to noise ratio (SNR). The mean percentage error of detected heart rate is found to be 0.72% for the noisy database with five different noise levels.

  4. Installation Restoration Program. Phase 2. Confirmation/Quantification. Stage 1 for Minot Air Force Base, Minot, North Dakota. Volume 3. Appendices G through M

    DTIC Science & Technology

    1988-10-01

    3 I JA * * - ’ a *- 4 : IV W& s* 0 * a a a a a - V ___c~ ar . * _ _ _ 140 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ z_ _4 G. 4 I * 4 t I * * * :C... 4 ,ann l m ’ ______ _____ _ _____ _u___ _____ uno m ii I G.9 :ad r’. K -d - 4 3 0 dI .0U lid z Z *44% fto* :1 000 H I~I2I r- 4 c 0...HI a ci a id - Id U N. Cc ~ . .*S i! P 3 : I t t ic-r 2 i am ~~bA &.40-w~. ’- ~ ,~ %~% a IL ’, a. h V4 U ~ U. aZ2. cc CIO, SS

  5. Arduino based radiation survey meter

    SciTech Connect

    Rahman, Nur Aira Abd Lombigit, Lojius; Abdullah, Nor Arymaswati; Azman, Azraf; Dolah, Taufik; Jaafar, Zainudin; Mohamad, Glam Hadzir Patai; Ramli, Abd Aziz Mhd; Zain, Rasif Mohd; Said, Fazila; Khalid, Mohd Ashhar; Taat, Muhamad Zahidee; Muzakkir, Amir

    2016-01-22

    This paper presents the design of new digital radiation survey meter with LND7121 Geiger Muller tube detector and Atmega328P microcontroller. Development of the survey meter prototype is carried out on Arduino Uno platform. 16-bit Timer1 on the microcontroller is utilized as external pulse counter to produce count per second or CPS measurement. Conversion from CPS to dose rate technique is also performed by Arduino to display results in micro Sievert per hour (μSvhr{sup −1}). Conversion factor (CF) value for conversion of CPM to μSvhr{sup −1} determined from manufacturer data sheet is compared with CF obtained from calibration procedure. The survey meter measurement results are found to be linear for dose rates below 3500 µSv/hr.

  6. RELACIÓN MÉDICO PACIENTE: DERECHOS DEL ADULTO MAYOR

    PubMed Central

    Barrantes-Monge, Melba; Rodríguez, Eduardo; Lama, Alexis

    2009-01-01

    Existen prejuicios en relación con la vejez, incluso entre los profesionales que se dedican a la gerontología. Uno común y peligroso es considerar que los viejos son todos enfermos o discapacitados. La relación médico-paciente es la piedra angular de la práctica y ética médicas. Para alcanzar el respeto por los adultos mayores es necesaria una medicina prudente, basada en una práctica en la cual la reflexión ética y clínica pueda contribuir. Esto último es posible si se hacen valer los derechos del adulto mayor, en particular como paciente para la toma de decisiones. PMID:20379380

  7. Nuclear mass formula with the shell energies obtained by a new method

    SciTech Connect

    Koura, H.; Tachibana, T.; Yamada, M.; Uno, M.

    1998-12-21

    Nuclear shapes and masses are estimated by a new method. The main feature of this method lies in estimating shell energies of deformed nuclei from spherical shell energies by mixing them with appropriate weights. The spherical shell energies are calculated from single-particle potentials, and, till now, two mass formulas have been constructed from two different sets of potential parameters. The standard deviation of the calculated masses from all the experimental masses of the 1995 Mass Evaluation is about 760 keV. Contrary to the mass formula by Tachibana, Uno, Yamada and Yamada in the 1987-1988 Atomic Mass Predictions, the present formulas can give nuclear shapes and predict on super-heavy elements.

  8. [Reversible porencephalic cyst related to shunt dysfunction].

    PubMed

    Santín-Amo, José M; Rico-Cotelo, María; Serramito-García, Ramón; Gelabert-González, Miguel; Allut, Alfredo G

    2014-03-16

    Introduccion. El tratamiento quirurgico de la hidrocefalia es uno de los procedimientos quirurgicos mas habituales en la neurocirugia pediatrica, y las derivaciones ventriculoperitoneales constituyen una herramienta fundamental en el tratamiento de la hidrocefalia tanto infantil como del adulto. Las complicaciones de las valvulas son relativamente frecuentes, sobre todo en la poblacion pediatrica, y, entre estas, las mas habituales incluyen: las obstrucciones, las desconexiones, el hiperdrenaje y las infecciones. Caso clinico. Niña de 7,5 años, portadora de una valvula ventriculoperitoneal, que presentaba cefalea intermitente. Un estudio con tomografia computarizada demostro una lesion quistica temporal derecha. Tras la revision valvular, la tomografia computarizada evidencio la reduccion del quiste. Conclusiones. La formacion de una cavidad porencefalica es una complicacion poco frecuente. Se relaciona con problemas en el cateter distal en pacientes con ventriculos dilatados y de las que existen escasas referencias en la bibliografia.

  9. H3+: superficies de energía potencial, estados y transiciones rovibracionales

    NASA Astrophysics Data System (ADS)

    Aguado, M. Paniagua Y. A.

    Hemos calculado varias superficies globales de energía potencial para el estado fundamental y excitados del sistema H3+ en más de ocho mil geometrías diferentes usando una base (9s 3p 1d)/[4s 3p 1d] en cada átomo de Hidrógeno y mediante un método de cálculo de interacción de configuraciones completa (FCI). Hemos ajustado las superficies a formas analíticas del tipo Aguado y Paniagua con un error promedio menor de 50 cm-1 y menor en el pozo de potencial del estado fundamental. Finalmente hemos calculado y analizado los niveles vibracionales para los dos estados electrónicos más bajos, siendo la desviación respecto de los mejores valores publicados, tanto experimentales como teóricos, de unos pocos números de onda.

  10. Infratentorial congenital glioblastoma multiforme. A rare tumour with a still unknown biology.

    PubMed

    Salas, S; Agut, T; Rovira, C; Canizo, D; Lavarino, C; Garcia-Alix, A

    2016-11-01

    Introduccion. El glioblastoma multiforme congenito representa solo el 3% de los tumores congenitos del sistema nervioso central, y su ubicacion infrantentorial es excepcional. Caso clinico. Recien nacido con un glioblastoma multiforme congenito sin mutacion en el gen TP53 ni inmunorreactividad nuclear p53, que infiltraba practicamente todo el tronco cerebral e invadia tambien estructuras supratentoriales. Conclusiones. Hasta donde sabemos, solo se han referido previamente cuatro casos de localizacion infratentorial, tres en el cerebelo y uno en el tronco del encefalo. La biologia del glioblastoma multiforme congenito no se conoce bien y, a diferencia del glioblastoma multiforme en la edad adulta, las mutaciones en el gen TP53 son poco frecuentes, sin que eso parezca implicar un mejor pronostico. Estas observaciones sugieren que el glioblastoma multiforme con origen en la vida fetal tiene una biologia diferente del que se presenta en otras etapas de la vida.

  11. A Temporal View of Soft Tissue Quantitative Ultrasound

    NASA Astrophysics Data System (ADS)

    O'Brien, William D.

    The objective of soft tissue quantitative ultrasound (QUS) is to improve diagnostic ultrasound imaging capabilities via quantitative outcomes. Over the past three or so decades, there have been an increasing number of QUS successes. A temporal view moves us back in history almost six decades when techniques and theoretical developments were in their earliest stages that impacted modern QUS successes. The earliest theoretical developments and techniques some six decades ago can be attributed to Lev Chernov, Philip Morse, Herman Feshbach, Uno Ingard, John Wild and Jack Reid. Later, Floyd Dunn developed important views as to how connective tissue affected the interaction between ultrasound and soft tissue. Then, as the theory of wave propagation in soft tissues with random inhomogeneities was extended and applied by Fred Lizzi, Jim Zagzebski and Mike Insana (and their colleagues), contemporary QUS successes started to emerge.

  12. Estructura orbital en el Problema Restringido Rectilíneo Isósceles

    NASA Astrophysics Data System (ADS)

    Orellana, R. B.

    Para definir problemas en Mecánica Celeste se utilizan diferentes parámetros. El conocimiento de la dinámica del problema para valores particulares de estos parámetros nos permite entender el comportamiento en casos más generales. El Problema Restringido Rectilíneo Isósceles puede ser considerado como el caso límite del Problema de Sitnikov cuando la excentricidad tiende a uno o como el Problema Isósceles cuando la masa central tiende a cero. Se ha compactificado el espacio de fases y analizado la dinámica en el límite. Esto ha permitido separar el espacio de fases en diferentes regiones dependiendo de las clases de órbitas.

  13. [Effect of metformin addition to an acute lymphoblastic leukemia chemotherapy treatment].

    PubMed

    Ramos-Peñafiel, Christian Omar; Martínez-Murillo, Carlos; Santoyo-Sánchez, Adrián; Jiménez-Ponce, Fiacro; Rozen-Fuller, Etta; Collazo-Jaloma, Juan; Olarte-Carrillo, Irma; Martínez-Tovar, Adolfo

    2014-01-01

    INTRODUCCIÓN: se ha informado efecto benéfico con metformina en pacientes con cáncer. El objetivo de esta investigación fue evaluar el efecto de adicionar metformina a la quimioterapia sobre las recaídas tempranas en pacientes con leucemia linfoblástica aguda. MÉTODOS: estudio prospectivo, longitudinal y experimental de pacientes portadores de leucemia linfoblástica aguda de novo, realizado en el Hospital General de Mexico. La muestra fue dividida en dos brazos de tratamiento: uno recibió metformina (850 mg cada ocho horas) + quimioterapia; otro recibió únicamente quimioterapia estándar. La distribución de los pacientes fue aleatoria, 3:1 a favor del segundo brazo.

  14. Deep burn of hand and forearm treated by abdominal wall flap. A case report.

    PubMed

    Chiummariello, Stefano; Del Torto, Giuseppe; Maffia, Romano; Pataia, Elisabetta; Alfano, Carmine

    2015-06-24

    Le ustioni della mano sono sempre state uno dei maggiori problemi per i chirurghi ricostruttori a causa della sua particolare anatomia e delle sue complesse funzioni. Una guarigione spontanea di lesioni profonde in queste aree può portare a risultati catastrofici: una copertura cutanea adeguata è fondamentale per tutte le funzioni. La copertura precoce dei tessuti molli residuanti è fondamentale al fine di evitare la formazione di contratture disabilitanti che con il tempo potrebbero determinare anchilosi articolare e retrazione tendinea. Escissione precoce e innesti cutanei rappresentano la terapia standard per le ustioni della mano; in alcuni casi quest’approccio è inapplicabile e, pertanto, il ricorso ai lembi diventa inevitabile. In questo articolo riportiamo un caso di ustione complessa del dorso della mano trattata in prima istanza con innesti cutanei e, quindi, con un lembo addominale, riuscendo ad ottenere un’ottima copertura ed un buon recupero delle funzioni.

  15. [Competence in biocentric ethics.

    PubMed

    Stepke, Fernando Lolas

    2012-07-01

    ResumenEste artículo explora el origen y la conceptualización de la bioética en tanto ética biocéntrica, definida por el pionero Fritz Jahr como un imperativo hipotético que llama a respetar la vida en todas sus formas. Tras describirla como proceso social, procedimiento técnico y producto académico, se enumeran y comentan algunas competencias que debieran presidir el empleo del discurso bioético en cualquier punto del complejo social "investigación médica": miembros de comités de ética de investigación, investigadores, empresarios, administradores. Cada uno de estos grupos, en su "cultura epistémica" propia, define y explicita los principios básicos en tanto expresión de valores y leyes generales.

  16. IL TRAPIANTO ORTOTOPICO DEL FEGATO

    PubMed Central

    STARZL, THOMAS E.

    2010-01-01

    E’ormai noto che esiste la possibilità rivoluzionaria di utilizzare il fegato per il trattamento della stadio terminale delle epatopatie. Nel gennaio 1980 si celebra il decimo anna di sopravvivenza con fegato trapiantato (la più lunga della letteratura) di un paziente da noi trattato. Si tratta di uno dei 12 malati sottoposti a trapianto e seguiti per più di 5 anni. La nota positiva di questa tipo di trattamento è rappresentata dall’eccellente tenore di vita che i pazienti conducono e dalla riabilitazione sociale e professionale. La nota negativa è data, invece, dal fatto che i buoni risultati non vengono raggiunti con regolarità e non possono essere previsti con esattezza. In questa breve rassegna considereremo la esperienza da noi fatta presso l’Università di Denver nel Colorado, mettendo in risalto le cause dell’elevata mortalità precoce e le prospettive future di questa mezzo terapeutico. PMID:21572898

  17. [Cross-sectional study on the determinants of work stress for nurses and intention of leaving the profession].

    PubMed

    Romano, Marina; Festini, Filippo; Bronner, Leonardo

    2015-01-01

    INTRODUZIONE. Lo stress occupazionale è una delle principali cause di malattie professionali e di assenze da lavoro e genera costi sanitari e sociali molto elevati; la comprensione del problema è stata l'obiet- tivo di numerosi studi. Monitorare lo stress negli infermieri può essere uno strumento per chi ha la responsabilità della gestione delle risorse umane nel sistema sanitario. La ricerca infermieristica italiana si è occupata solo marginalmente di stress lavorativo infermieristico. Gli obiettivi di questo studio sono dunque: stimare la prevalenza di stress tra gli infermieri di tre ospedali, in modo da disporre di dati epidemiologici per valutare la necessità di interventi di prevenzione e di trattamento del fenomeno; analizzare eventuali fattori di rischio e fattori protettivi in modo da progettare interventi preventivi mirati.

  18. Bis(1,3-dimethyl-1,3-diazinan-2-one)dinitratodioxidouranium(VI)

    PubMed Central

    Suzuki, Tomoya; Kawasaki, Takeshi; Ikeda, Yasuhisa

    2011-01-01

    The title compound, [U(NO3)2O2(C6H12N2O)2], exhibits a hexa­gonal–bipyramidal geometry around the UVI ion, which is situated on an inversion centre and coordinated by two oxide ligands in the axial positions, and four O atoms from two bidentate NO3 − and two O atoms from two 1,3-dimethyl-1,3-diazinan-2-one (DMPU) ligands in the equatorial plane. These ligands are located in trans positions. The –(CH2)3– moiety in the DMPU ligand is disordered over two positions in a 0.786 (11):0.214 (11) ratio. PMID:21522544

  19. [Nosocomial infections. Trends over a 12 year-period in a pediatric hospital].

    PubMed

    Zamudio-Lugo, Irma; Espinosa-Vital, Guadalupe Judith; Rodríguez-Sing, Roberta; Gómez-González, Claudia Josefina; Miranda-Novales, María Guadalupe

    2014-01-01

    INTRODUCCIÓN: las infecciones nosocomiales constituyen uno de los principales problemas de salud en los hospitales, por ello, los programas de prevención y control deben ser evaluados con el impacto en las tasas de incidencia. El objetivo de esta investigación fue identificar la tendencia de las infecciones nosocomiales durante un periodo de 12 años en un hospital pediátrico de tercer nivel. MÉTODOS: se llevó a cabo un estudio de cohorte retrospectivo en el que se incluyeron todos los pacientes hospitalizados que presentaron infecciones nosocomiales. El análisis estadístico de los datos incluyó frecuencias simples, proporciones y densidad de incidencia por año, sitio de infección y letalidad.

  20. [Difficult for intubation in a simulator with laryngoscope with and without mirror].

    PubMed

    Almaraz-Ibarra, Manuel; López-Garcés, Víctor Manuel; Amador-Licona, Norma; Pérez-Aguilar, Ramón

    2014-01-01

    INTRODUCCIÓN: el laringoscopio con espejo es usado frecuentemente en pacientes con variaciones anatómicas porque mejora la visibilidad de la epiglotis y acorta el tiempo de intubación. El objetivo de esta investigación fue comparar el grado de dificultad de la intubación con laringoscopio dotado de hoja curva sin espejo (Macintosh) adversus laringoscopio con espejo (Siker) en un simulador, en anestesiólogos de diferentes categorías. MÉTODOS: estudio transversal comparativo de 29 residentes y 21 médicos de base, quienes tuvieron tres intentos de 30 segundos cada uno para intubar con cada laringoscopio en dos escenarios distintos. Se registró el tiempo y el número de intento en el que se logró la intubación exitosa. Los datos se procesaron en el programa Statistica versión 6.

  1. Proyecto para la medición sistemática de seeing en CASLEO

    NASA Astrophysics Data System (ADS)

    Fernández Lajus, E.; Forte, J. C.

    La calidad del seeing astronómico es ciertamente uno de los parámetros mas importantes que caracterizan el sitio de un observatorio. Por tanto se desea determinar si el alto valor de seeing observado con el telescopio de 2.15 m se debe a efectos internos y/o del entorno a la cupula o si se debe simplemente al seeing propio del lugar. El actual mecanismo de refrigeración del espejo primario del 2.15, parece haber mejorado notablemente la calidad del seeing. Sin embargo se hace necesario saber hasta que punto el valor del seeing puede ser mejorado. La primera etapa del proyecto consistió en la puesta a punto del telescopio emplazado para este propósito y la adquisición de las primeras medidas tentativas de seeing.

  2. [Not Available].

    PubMed

    Molina Villaverde, Raquel

    2016-06-03

    El cáncer es un problema sanitario de primera magnitud a escala mundial. Su tratamiento es uno de los mayores campos de innovación y desarrollo en medicina. La visión del cáncer como una enfermedad sistémica, heterogénea y de una elevada complejidad hace que los enfermos deban recibir una atención oncológica de calidad, proporcionada por equipos multidisciplinares altamente cualificados. Además de la gran incidencia de malnutrición en estos pacientes, la intervención nutricional precoz puede mejorar su pronóstico, aumentar la calidad de vida y disminuir la tasa de complicaciones de la enfermedad. Por ello, es necesaria una estrecha colaboración entre el oncólogo y el experto en nutrición.

  3. [Temperature Measurement with Bluetooth under Android Platform].

    PubMed

    Wang, Shuai; Shen, Hao; Luo, Changze

    2015-03-01

    To realize the real-time transmission of temperature data and display using the platform of intelligent mobile phone and bluetooth. Application of Arduino Uno R3 in temperature data acquisition of digital temperature sensor DS18B20 acquisition, through the HC-05 bluetooth transmits the data to the intelligent smart phone Android system, realizes transmission of temperature data. Using Java language to write applications program under Android development environment, can achieve real-time temperature data display, storage and drawing temperature fluctuations drawn graphics. Temperature sensor is experimentally tested to meet the body temperature measurement precision and accuracy. This paper can provide a reference for other smart phone mobile medical product development.

  4. Topographic Study on Staging Transition in H2SO4-Graphite Intercalation Compound by in situ Raman Scattering Measurements

    NASA Astrophysics Data System (ADS)

    Nishitani, Ryusuke; Sasaki, Yoshiro; Nishina, Yuichiro

    1987-03-01

    The staging kinetics in H2SO4-GIC’s has been investigated experimentally by time-and space-dependent Raman scattering measurements. The stage transition from stage n to n-1 begins at the interface between the intercalant reservoir and the a-face of the graphite crystal. The lower stage-(n-1) domains emerge at the interface and proceed toward the inner region of the crystal. A narrow phase-boundary between different stage domains exists in the localized region and move toward the inner region as the stage transformation progresses. The present results support the model [R. Nishitani, Y. Uno and H. Suematsu: Synth. Met. 7 (1983) 13] that the stage transformation proceeds via propagation of the boundary between well-staged regions. The origin of the stage disorder is also discussed.

  5. Measuring the Strategic Balance. Working Papers for the International Institute for Strategic Studies.

    DTIC Science & Technology

    1976-06-24

    the risk of escala — - tory response (possible countervalue) but he would also reduce the magni— tud e of his own deterren t threat .* S S S S . 5 5 S...Error Probable (CEP) , a weapon ’s ability to destroy a hare ta rge t is ma t l -,m a t i c a l i y f o rmula ted as a Probabil i ty of Ki l l (Pk...a does not In - la t . . c riisstci s a r v i v - n a r ~i : y problu : , but uno se sane do sur’civn w:li n~~ve improved hare t au q et

  6. [Clinical characteristics of the thyroid follicular carcinoma].

    PubMed

    Gutiérrez-Hermosillo, Hugo; Tamez-Peréz, Héctor Eloy; Díaz de León-Gonzaléz, Enrique; Gutiérrez-Hermosillo, Violeta; Avila-Sanchéz, Jair

    2013-01-01

    Introducción: se ha identificado carcinoma folicular en 39 % de los pacientes con nódulos tiroideos cuya citología prequirúrgica ha indicado resultados indeterminados. El propósito de esta investigación fue conocer la prevalencia de esta entidad en un hospital de concentración. Métodos: se buscaron los reportes quirúrgicos con diagnóstico de carcinoma folicular. Se registró tamaño del tumor, sexo y edad del paciente, diagnósticos pre y posquirúrgico y patologías asociadas. Resultados: se diagnosticó carcinoma folicular en 35 pacientes: 30 mujeres (85 %) y cinco hombres (15 %). La edad en los hombres fue de 57 ± 6.6 y de 44 ± 16.9 en las mujeres. Los diagnósticos preoperatorios fueron carcinoma folicular en 14 (40 %), cáncer tiroideo en seis (17.1 %), adenoma folicular en cuatro (11.4 %), bocio en tres (8.5 %), nódulo tiroideo en tres (8.5 %); carcinoma papilar, tumor de tiroides, carcinoma poco diferenciado de tiroides, adenocarcinoma folicular bien diferenciado, cáncer medular en un paciente (2.8 %) cada uno. Las patologías asociadas fueron tiroiditis de Hashimoto y carcinoma papilar contralateral, con dos pacientes cada uno (5.6 %). Conclusiones: la edad de los pacientes y la presentación clínica del carcinoma folicular difirieron de las informadas en otras investigaciones.

  7. [Parenteral nutrition in pediatric patients: indications and complications in third level].

    PubMed

    Ríos-González, Roxana; Anaya-Florez, María Salomé; Gutiérrez-Hernández, Jorge Isaac; Morán-Villota, Segundo

    2015-01-01

    Introducción: la nutrición parenteral (NP) es una mezcla que cubre las necesidades nutricionales cuando no es posible lograr esta tarea por la vía enteral en el paciente; sin embargo, no está exenta de complicaciones. El objetivo del estudio fue conocer la indicación y la frecuencia de complicaciones de la NP en pacientes pediátricos atendidos en un centro de tercer nivel. Métodos: se incluyeron niños que recibieron NP en el Hospital de Pediatría del Centro Médico Nacional Siglo XXI del Instituto Mexicano del Seguro Social. Se registraron las características demográficas, antropométricas, la causa de la indicación de la NP, su tiempo de administración y las complicaciones asociadas a este tipo de nutrición. Resultados: se incluyeron 69 pacientes pediátricos: 33 recién nacidos (RN) y 18 lactantes entre uno y 11 meses de edad; nueve preescolares entre uno y cinco años, y nueve niños mayores de cinco años. Las enfermedades del tracto digestivo tratadas quirúrgicamente constituyeron el 71 % de las indicaciones para el inicio de NP. Se presentaron complicaciones en el 87 % de los pacientes y 76.7% tuvieron más de una complicación. Las complicaciones metabólicas representaron 98 %, las mecánicas 1 % y las infecciosas 1 %. Conclusión: la NP en este centro de tercer nivel se indicó principalmente a pacientes sometidos a cirugía del tracto digestivo.

  8. Tv food advertising geared to children in Latin-American countries and Hispanics in the USA: a review.

    PubMed

    Bacardí-Gascón, Montserrat; Jiménez-Cruz, Arturo

    2015-05-01

    Introducción: El propósito de esta revisión fue analizar los estudios sobre anuncios de alimentos en la TV en Latinoamérica y en los EEUU dirigidos a Hispanos. Métodos: Se realizó una búsqueda electrónica de trabajos publicados de 1986 a 2015, en las bases de datos de MEDLINE/PubMed, EMBASE, SCIELO, y CINAHL, en internet de acceso abierto, sobre anuncios de alimentos en la televisión dirigidos a niños en países latinoamericanos y a Hispanos que viven en los Estados Unidos. Resultados: La búsqueda dio como resultado veinticuatro estudios, seis realizados en Chile, cinco en México, cuatro en Brasil, tres en Hispanos de EEUU, y uno en cada uno de los siguientes países: Argentina, Perú, Colombia, Honduras y Venezuela. Una gran proporción de anuncios sobre alimentos en la TV están dirigidos a los niños y a sus familias. Esta exposición ha sido asociada a la preferencia y solicitud de compra de estos alimentos por los niños y con un aumento del IMC, sobrepeso y obesidad en niños y adultos. Conclusión: Se observa una alarmante alta exposición de anuncios de alimentos en la TV dirigida a niños, lo que demanda políticas regulatorias, supervisión, y rendimiento de cuentas eficaces.

  9. A follow-up analysis of the pattern and predictors of dropout from the waiting list for liver transplantation in patients with hepatocellular carcinoma: implications for the current organ allocation policy.

    PubMed

    Yao, Francis Y; Bass, Nathan M; Nikolai, Bev; Merriman, Raphael; Davern, Timothy J; Kerlan, Robert; Ascher, Nancy L; Roberts, John P

    2003-07-01

    Since our interim report of the intention-to-treat outcome of orthotopic liver transplantation (OLT) for hepatocellular carcinoma (HCC), we have performed a follow-up analysis of an expanded cohort of 70 patients to further assess whether the observed pattern and predictors of dropout are consistent with the rationale behind current HCC-adjusted Model for End Stage Liver Disease (MELD) organ allocation scheme. All except one patient had pretransplantation staging meeting our proposed expanded criteria-a single lesion < or =6.5 cm, or three or fewer lesions none >4.5 cm and total tumor diameter < or =8 cm. Thirty-eight patients received OLT. The cumulative probabilities of dropout at 6, 12, and 18 months were 7.2%, 37.8%, and 55.1%, respectively. The respective dropout probabilities would have been 11.0%, 57.4%, and 68.7% if the United Network for Organ Sharing (UNOS) criteria for exclusion (single lesion < or =5 cm or three or fewer lesions none >3 cm) were applied. Predictors of dropout with either criteria included three tumor nodules and a single lesion >3 cm at initial presentation, whereas preoperative chemoembolization or ablation therapies were associated with a lower risk for dropout only when applying the UNOS criteria for patient exclusion. In the subgroup with two or three lesions or a solitary tumor >3 cm, the cumulative probabilities of dropout were nine-fold higher than those with a single lesion < or =3 cm (P =.004). In conclusion, the low dropout rate in the first 6 months and the differing dropout risks based on tumor characteristics support further refinements in the HCC-adjusted MELD organ allocation scheme.

  10. Contrast-enhanced ultrasound in planning thermal ablation of liver metastases: Should the hypervascular halo be included in the ablation volume?().

    PubMed

    Andreano, A; Meneghel, E; Bovo, G; Ippolito, D; Salvioni, A; Filice, C; Sironi, S; Meloni, M F

    2010-12-01

    Sommario INTRODUZIONE: All’ecografia con Mezzo di Contrasto (CEUS) dei tumori secondari epatici si evidenzia spesso un alone periferico ipervascolare, che non ha corrispondenza sull’immagine ecografica di base e non è ancora stato caratterizzato istologicamente. Lo scopo dello studio è di caratterizzare tale alone al fine di determinare se sia necessario includerlo nel volume di necrosi pianificato. MATERIALI E METODI: Questo studio prospettico ha incluso 25 pazienti inviati per terapia termo-ablativa di tumori secondari epatici. Prima del trattamento tutti i pazienti sono stati sottoposti a CEUS. Il diametro maggiore della lesione è stato determinato: pre-contrasto, durante la fase arteriosa e durante la fase venosa portale. I diametri delle lesioni pre e post-contrasto sono stati confrontati mediante il test di Turkey–Kramer. Due campioni bioptici sono stati prelevati con ago 21-gauge e analizzati istologicamente: 1) uno dalla zona centrale del tumore e 2) uno dall’alone periferico ipervascolare, identificato alla CEUS solamente nella fase arteriosa. RISULTATI: Il diametro massimo medio delle lesioni è risultato (±deviazione standard): 2,67 ± 1,2 cm pre-contrasto; 3,50 ± 1,4 cm in fase arteriosa; 2,71 ± 1,2 cm in fase venosa. La differenza media tra il diametro massimo pre-contrasto e in fase arteriosa è risultata di 0,84 ± 0,45cm (p<0,0001). All’esame istologico, 24/25 campioni (96%) hanno dimostrato flogosi senza evidenza di tumore microscopico. DISCUSSIONE: L’alone ipervascolare periferico è costituito da infiltrato infiammatorio, non da tessuto tumorale. Esistono evidenze in letteratura che l’infiammazione cronica promuova la neovascolarizzazione e la produzione di fattori di crescita per le cellule neoplastiche. Sembra quindi opportuno includere completamente l’alone ipervascolare periferico evidente alla CEUS nel volume di termo-ablazione.

  11. Micro, meso, macro

    NASA Astrophysics Data System (ADS)

    Liljenström, Hans; Svedin, Uno

    1. System features, dynamics, and resilience - some introductory remarks / Hans Liljenström & Uno Svedin -- pt. I. The "vertical" system structure and meso-level characteristics. 2. Mesoscopic levels in science - some comments / Hermann Haken. 3. The necessity for mesoscopic organization to connect neural function to brain function / Walter J. Freeman. 4. Dynamic state transitions in the nervous system: from ion channels to neurons to networks / Peter Århem ... [et al.]. 5. A revolution in the Middle Kingdom / Robert E. Ulanowicz. 6. The meso-scale level of self-maintained reflective systems / Abir U. Igamberdiev -- pt. II. Inner and outer dynamics. 7. Time rescaling and generalized entropy in relation to the internal measurement concept / Igor Rojdestvenski & Michael G. Cottam. 8. Studying dynamic and stochastic systems using Poisson simulation / Leif Gustafsson. 9. Resource dynamics, social interactions, and the tragedy of the commons / Alia Mashanova & Richard Law. 10. Stability of social interaction / Sjur D. Flåm -- pt. III. Resilience and shocks. 11. Systems, shocks and time bombs / Nick Winder. 12. Biodiversity decreases the risk of collapse in model food webs / Charlotte Borrvall, Maria Christianou & Bo Ebenman. 13. A long-term perspective on resilience in socio-natural systems / Sander E. van der Leeuw & Christina Aschan-Leygonie. 14. Resilience in utility technologies / Roger Seaton. 15. Economic growth under shocks: path dependencies and stabilization / Yuri M. Ermoliev, Tatiana Y. Ermolieva & Vladimir I. Norkin. 16. Risk and crises management in complex systems / Koen Bertels, Jean-Marie Jacques & Magnus Boman. 17. Bridges, connections and interfaces - reflections over the meso theme / Uno Svedin & Hans Liljenström.

  12. [Drooling therapy in children with neurological disorders].

    PubMed

    Táboas-Pereira, M Andrea; Paredes-Mercado, Cecilia; Alonso-Curcó, Xènia; Badosa-Pagès, Joaquim; Muchart, Jordi; Póo, Pilar

    2015-07-16

    Introduccion. La sialorrea es la incapacidad para retener la saliva dentro de la boca y su progresion al tracto digestivo, y es un problema frecuente en pacientes pediatricos con patologia neurologica, por lo que se estan utilizando diferentes medidas para su tratamiento. Objetivo. Evaluar la eficacia y seguridad del trihexifenidilo, la escopolamina y la infiltracion de toxina botulinica en el tratamiento del babeo en niños con patologia neurologica. Pacientes y metodos. Es un estudio de tipo abierto y prospectivo. Incluye pacientes atendidos en el servicio de neurologia que presentaban babeo excesivo, con repercusion en su calidad de vida, entre 2009 y 2013. Resultados. En 46 pacientes se indico tratamiento con trihexifenidilo oral, y se obtuvo buena respuesta en 15 (32,6%), tres con efecto transitorio y el resto mantenido. Presentaron efectos secundarios tres pacientes (6,5%). De los 11 pacientes a los que se indicaron parches de escopolamina, se hallo efecto beneficioso en cuatro (36,36%), uno fue retirado por falta de eficacia y seis por efectos secundarios. Veinticinco pacientes fueron infiltrados con toxina botulinica, con disminucion significativa del babeo en 16 (64%) tras la primera infiltracion. No observamos cambios significativos en nueve casos. Solo uno presento efectos secundarios (disfagia leve). Conclusiones. Por no haber una opcion terapeutica totalmente eficaz para los pacientes con sialorrea, recomendamos iniciar el tratamiento con trihexifenidilo; como segunda opcion, los parches de escopolamina, y como tercera opcion, la toxina botulinica. La infiltracion de toxina botulinica en glandulas salivales se muestra como una alternativa eficaz y segura segun nuestra serie.

  13. Development of a Low-Cost Arduino-Based Sonde for Coastal Applications.

    PubMed

    Lockridge, Grant; Dzwonkowski, Brian; Nelson, Reid; Powers, Sean

    2016-04-13

    This project addresses the need for an expansion in the monitoring of marine environments by providing a detailed description of a low cost, robust, user friendly sonde, built on Arduino Mega 2560 (Mega) and Arduino Uno (Uno) platforms. The sonde can be made without specialized tools or training and can be easily modified to meet individual application requirements. The platform allows for internal logging of multiple parameters of which conductivity, temperature, and GPS position are demonstrated. Two design configurations for different coastal hydrographic applications are highlighted to show the robust and versatile nature of this sensor platform. The initial sonde design was intended for use on a Lagrangian style surface drifter that recorded measurements of temperature; salinity; and position for a deployment duration of less than 24 h. Functional testing of the sensor consisted of a 55 h comparison with a regularly maintained water quality sensor (i.e., YSI 6600 sonde) in Mobile Bay, AL. The temperature and salinity data were highly correlated and had acceptable RMS errors of 0.154 °C and 1.35 psu for the environmental conditions. A second application using the sonde platform was designed for longer duration (~3-4 weeks); subsurface (1.5-4.0 m depths) deployment, moored to permanent structures. Design alterations reflected an emphasis on minimizing power consumption, which included the elimination of the GPS capabilities, increased battery capacity, and power-saving software modifications. The sonde designs presented serve as templates that will expand the hydrographic measurement capabilities of ocean scientists, students, and teachers.

  14. Treating and Downstaging Hepatocellular Carcinoma in the Caudate Lobe with Yttrium-90 Radioembolization

    SciTech Connect

    Ibrahim, Saad M.; Kulik, Laura; Baker, Talia; Ryu, Robert K.; Mulcahy, Mary F.; Abecassis, Michael; Salem, Riad; Lewandowski, Robert J.

    2012-10-15

    Purpose: This study was designed to determine the technical feasibility, safety, efficacy, and potential to downstage patients to within transplantation criteria when treating patients with hepatocellular carcinoma (HCC) of the caudate lobe using Y90 radioembolization. Methods: During a 4-year period, 8 of 291 patients treated with radioembolization for unresectable HCC had disease involving the caudate lobe. All patients were followed for treatment-related clinical/biochemical toxicities, serum tumor marker response, and treatment response. Imaging response was assessed with the World Health Organization (WHO) and European Association for the Study of the Liver (EASL) classification schemes. Pathologic response was reported as percent necrosis at explantation. Results: Caudate lobe radioembolization was successfully performed in all eight patients. All patients presented with both cirrhosis and portal hypertension. Half were United Network for Organ Sharing (UNOS) stage T3 (n = 4, 50%). Fatigue was reported in half of the patients (n = 4, 50%). One (13%) grade 3/4 bilirubin toxicity was reported. One patient (13%) showed complete tumor response by WHO criteria, and three patients (38%) showed complete response using EASL guidelines. Serum AFP decreased by more than 50% in most patients (n = 6, 75%). Four patients (50%) were UNOS downstaged from T3 to T2, three of who underwent transplantation. One specimen showed histopathologic evidence of 100% complete necrosis, and two specimens demonstrated greater than 50% necrosis. Conclusions: Radioembolization with yttrium-90 appears to be a feasible, safe, and effective treatment option for patients with unresectable caudate lobe HCC. It has the potential to downstage patients to transplantation.

  15. Observaciones de fulguraciones en rayos X duros

    NASA Astrophysics Data System (ADS)

    Rovira, M. G.; Mandrini, C. H.

    El objetivo principal de la investigación de las fulguraciones solares es el descubrimiento del proceso responsable de la impredecible, rápida y enorme, liberación de energía que ocurre en ellas. Las evidencias observacionales más claras de esta liberación son la emisión de rayos X y microondas. En particular, la detección de la emisión de rayos X duros (energías entre decenas y centenas de keV) es uno de los elementos de diagnóstico utilizados para comprender los mecanismos de aceleración y transporte de los electrones energéticos que, hoy es aceptado, son los que en su interacción con la atmósfera solar generan los rayos X observados. En 1991 se puso en órbita el Compton Gamma Ray Observatory (CGRO) uno de cuyos instrumentos observa las fulguraciones solares en el rango de energías 15 <= E <= 300 keV con una resolución temporal de 0.064 seg. En este trabajo analizamos, usando la Técnica de la Transformada Discreta en Onditas, algunos de los casos registrados para intentar separar y parametrizar las componentes de distinta escala de tiempo que se superponen durante la fase impulsiva de una fulguración. Discutimos nuestros resultados en términos de las características del mecanismo de liberación de energía.

  16. [Malignant mesothelioma risk factors: experience in the General Hospital of Mexico].

    PubMed

    Hernández-Solís, Alejandro; Garcia-Hernández, Cyntia; Reding-Bernal, Arturo; Cruz-Ortiz, Humberto; Cicero-Sabido, Raúl

    2013-01-01

    Antecedentes: el mesotelioma maligno es un tumor de mal pronóstico relacionado con el contacto con asbesto; sin embargo, existen numerosos casos sin este antecedente. Objetivo: describir la relación entre la exposición al asbesto y otros factores con el mesotelioma maligno. Material y métodos: estudio retrospectivo de casos y controles pareado 1: 1-3 por edad y sexo de pacientes con diagnóstico de mesotelioma maligno. Se registraron: la exposición al asbesto, tabaco, humo de leña y antecedentes familiares de cáncer. Se empleó regresión logística para razones de momios (ORs). Resultados: se estudiaron 61 casos con mesotelioma maligno, 41 hombres y 20 mujeres. La edad promedio fue 56 ± 13 años; 56 casos fueron mesotelioma maligno epitelial (91.8%), tres sarcomatosos (4.9%), uno desmoplásico y uno bifásico. Sólo en 8 (13.1%) se identificó exposición al asbesto. En el modelo de regresión logística el asbesto tuvo una razón de momios de 3.083 p > 0.05. Ninguna otra variable resultó ser un factor de riesgo para mesotelioma maligno. Conclusiones: la exposición al asbesto es un factor de riesgo para mesotelioma maligno, lo que se confirma en este estudio; sin embargo, es importante ampliar la investigación de otros posibles factores causales de esta enfermedad.

  17. [Randomized clinical trials on the sugar sweetened beverages on adiposity in olders than 13 y; systematic review].

    PubMed

    Gómez-Miranda, Luis Mario; Jiménez-Cruz, Arturo; Bacardí-Gascón, Montserrat

    2013-11-01

    Introducción: Se ha observado una asociación entre el aumento del consumo de bebidas azucaradas y las enfermedades metabólicas. Objetivo: Analizar estudios aleatorizados (EA) en ≥ 13 años de edad, de 18 o más semanas de intervención, que valoren la reducción o el aumento en el consumo de bebidas azucaradas, saborizadas, jugos de frutas y bebidas carbonatadas, sobre indicadores de adiposidad. Metodología: Se realizó una búsqueda en PubMed, de EA publicados hasta el 10 de abril de 2013. El término utilizado para la búsqueda fue “Sugar Sweetened Beverages”. Se encontraron tres estudios enfocados a reducir y uno a aumentar12 el consumo de bebidas azucaradas. Resultados: En uno de los estudios dirigidos a reducir el consumo, se observó una ligera reducción del IMC en el grupo de intervención (p=0.045). En otro estudio se observó que la reducción de 355 ml/día se asoció a una pérdida de peso de 0.7 kg (IC 95%: 0.2-1.1, p=0.01). En el estudio para aumentar el consumo, se observó un aumento del cociente de la grasa visceral y la grasa subcutánea abdominal en el grupo que consumió Coca Cola regular y una disminución en el grupo que consumió leche descremada (p=0.01). Conclusión: Los resultados indican la tendencia hacía un efecto de la ingesta de bebidas azucaradas sobre la adiposidad.

  18. Racial and Ethnic Disparities in Graft and Patient Survival Among Elderly Kidney Transplant Recipients

    PubMed Central

    Ilori, Titilayo O.; Adedinsewo, Demilade A.; Odewole, Oluwaseun; Enofe, Nosayaba; Ojo, Akinlolu; McClellan, William; Patzer, Rachel E.

    2015-01-01

    Background/Objectives The rise in the number of elderly kidney transplant recipients over the past decade makes it increasingly important to understand factors affecting post-transplant outcomes in this population. Our objective was to investigate the racial/ethnic differences in graft and patient survival among elderly kidney transplant recipients. Design Retrospective Cohort. Setting & Participants All first-time, kidney-only transplant recipients ≥60 years of age at transplantation in the United Network for Organ Sharing (UNOS) database, transplanted between July 1996 and October 2010, N=44,013. Measurements Time to graft failure and death obtained from the UNOS database and linkage to the Social Security Death Index. Neighborhood poverty from 2000 U.S. Census geographic data. Results Of the 44,013 recipients in the sample, 20% were African American, 63% non-Hispanic white, 11% Hispanic, 5% Asian and the rest “other racial groups”. In adjusted Cox models, we found that compared to whites, African Americans were more likely to experience graft failure (HR: 1.23, 95%CI: 1.15, 1.32), while Hispanics, (HR: 0.77, 95%CI: 0.70, 0.85) and Asians (HR: 0.70, 95%CI: 0.61, 0.81) were less likely to experience graft failure. Secondly, compared to whites, African Americans (HR: 0.84, 95%CI: 0.80, 0.88), Hispanics (HR: 0.68, 95%CI: 0.64, 0.72), and Asians (HR: 0.62, 95%CI: 0.57, 0.68) all were less likely to die after renal transplantation. Conclusion Elderly African Americans are at increased risk of graft failure compared to white transplant recipients, but survive longer after transplantation. Asians have the highest patient and graft survival followed by the Hispanics. Further studies are needed to assess additional factors affecting graft and patient survival including outcomes such as quality of life. PMID:26660200

  19. Teorí­as de primer y segundo orden sobre el potencial de ciertas figuras de equilibrio de cuerpos celestes

    NASA Astrophysics Data System (ADS)

    Gumbau, Manuel Forner

    2010-11-01

    Uno de los problemas que aborda la Mecánica Celeste es la determinación de las figuras de equilibrio de los cuerpos celestes. Para investigar su solución mediante métodos directos, se precisa evaluar el potencial generado por su autogravitación, el generado por su fuerza centrí­fuga y el generado por la fuerza de atracción entre los cuerpos. Los métodos clásicos de Finlay y Kopal que afrontan estos problemas, para determinar el potencial autogravitatorio en las configuraciones de equilibrio, emplean desarrollos en serie de los potenciales interior y exterior del potencial autogravitatorio. Estos métodos incurren en el error de suponer la convergencia en capas donde resulta cuestionable dicha convergencia para estos desarrollos en serie. En este trabajo se han elaborado unos algoritmos que contemplan toda la casuí&stica y que permiten una manipulación efic iente del producto de polinomios de Legendre, del producto de funciones asociada s de Legendre y del producto de armónicos esféricos como combinacióon lineal de ellos mismos, respectivamente. Se han obtenido, para primer y segundo orden en las amplitudes, los desarrollos correctos para los potencial es interior y exterior del potencial autogravitatorio para configuraciones de equilibrio aisladas, y , en primer orden de amplitudes, los mismos potenciales para los sistemas binarios próximos. Se ha elaborado un método analítico, en primer orden respecto de las amplitudes, para la determinación del potencial de marea en sistemas binarios próximos en el cual se manifiesta la forma de la componente secundaria del sistema

  20. Seeds of a possible natural hybrid between herbicide-resistant Brassica napus and Brassica rapa detected on a riverbank in Japan.

    PubMed

    Aono, Mitsuko; Wakiyama, Seiji; Nagatsu, Masato; Kaneko, Yukio; Nishizawa, Toru; Nakajima, Nobuyoshi; Tamaoki, Masanori; Kubo, Akihiro; Saji, Hikaru

    2011-01-01

    Transgenic herbicide-resistant varieties of Brassica napus, or oilseed rape, from which canola oil is obtained, are imported into Japan, where this plant is not commercially cultivated to a large extent. This study aimed to examine the distribution of herbicide-resistant B. napus and transgene flow to escaped populations of its closely related species, B. rapa and B. juncea. Samples were collected from 12 areas near major ports through which oilseed rape imports into Japan passed--Kashima, Chiba, Yokohama, Shimizu, Nagoya, Yokkaichi, Sakai-Senboku, Kobe, Uno, Mizushima, Kita-Kyushu, and Hakata--and the presence of glyphosate- and/or glufosinate-resistant B. napus was confirmed in all areas except Yokohama, Sakai-Senboku, Uno, and Kita-Kyushu. The Yokkaichi area was the focus because several herbicide-resistant B. napus plants were detected not only on the roadside where oilseed rape spilled during transportation but also on the riverbanks, where escaped populations of B. rapa and B. juncea grew. Samples of B. napus that were tolerant to both herbicides were detected in four continuous years (2005-2008) in this area, suggesting the possibility of intraspecific transgene flow within the escaped B. napus populations. Moreover, in 2008, seeds of a possible natural hybrid between herbicide-tolerant B. napus (2n = 38) and B. rapa (2n = 20) were detected; some seedlings derived from the seeds collected at a Yokkaichi site showed glyphosate resistance and had 2n = 29 chromosomes. This observation strongly suggests the occurrence of hybridization between herbicide-resistant B. napus and escaped B. rapa and the probability of introgression of a herbicide-resistance gene into related escaped species.

  1. Effects of dietary supplementation with lemon verbena extracts on serum inflammatory markers of multiple sclerosis patients.

    PubMed

    Mauriz, Elba; Vallejo, Daniela; Tuñón, María Jesús; Rodriguez-López, Jesús María; Rodríguez-Pérez, Roberto; Sanz-Gómez, Javier; García-Fernández, María del Camino

    2014-11-04

    Introducción: La inflamación es uno de los principales factores que contribuyen en la etiopatogénesis de la esclerosis múltiple (EM). Se ha demostrado que las intervenciones en la dieta con extractos de Lipia citriadora (hierbaluisa) son efectivas en la prevención de las enfermedades inflamatorias. Objectivos: El objetivo de este estudio es evaluar el efecto de la suplementación con extractos de hierbaluisa en los biomarcadores de inflamación en suero de pacientes con diferentes subtipos clínicos de esclerosis múltiple. Métodos: El efecto de la suplementación con hierbaluisa (10 % p/p verbascósido) se evaluó mediante un estudio aleatorizado de doble ciego controlado con grupo placebo, constituido por 30 participantes clasificados según la forma de presentación de EM en: remitentes-recaídas (n=10), primaria progresiva (n=5) y secundaria progresiva (n=15). Los niveles de citoquinas y proteína C reactiva en suero se valoraron en los grupos intervención y control de cada uno de los subtipos clínicos de EM después de 28 días de suplementación en la dieta. Resultados: Se estudiaron los niveles en suero de proteína C reactiva y de 8 citoquinas como biomarcadores de inflamación (IFN-, IL-12, IL-23, IL-6, TNF-, TGF-, IL-4 e IL-10). Los pacientes del grupo de intervención con EM secundaria progresiva presentaron concentraciones de proteína C reactiva significativamente más bajos comparados con el grupo placebo (p.

  2. [External evaluation of gait and functional changes after a single-session multiple myofibrotenotomy in school-aged children with spastic diplegia].

    PubMed

    Gómez-Andrés, David; Pulido-Valdeolivas, Irene; Martín-Gonzalo, Juan Andrés; López-López, Javier; Martínez-Caballero, Ignacio; Gómez-Barrena, Enrique; Rausell, Estrella

    2014-03-16

    Introduccion. Unos 23.000 pacientes con espasticidad han optado voluntariamente por la miofibrotomia multiple (MFM), una tecnica alternativa consistente en seccionar tejidos blandos para liberar restricciones articulares. Iniciada por Ulzibat (Rusia), se realiza fuera de controles clinicos ortodoxos. Objetivo. Evaluar externamente los efectos de la MFM sobre la funcionalidad motora y la marcha. Pacientes y metodos. Estudio observacional autocontrolado que evalua cambios en variables funcionales –Gross Motor Function Classification System, dimension E de la Gross Motor Function Measure (GMFM) y Functional Mobility Scale– y 32 parametros de marcha (medidos mediante analisis instrumental) en 22 escolares con diplejia espastica (edad mediana: 9 años y 6 meses; Q1-Q3: 7 años y 11 meses a 11 años y 6 meses) cuyos padres optaron por una MFM (mediana de observacion: 4 meses; rango: 3-7 meses). Resultados. El analisis de conglomerados jerarquicos utilizado para determinar patrones topograficos de cortes en los pacientes detecto que los cirujanos aplicaban a cada paciente uno de tres conjuntos de cortes. Analizados los tres grupos de pacientes, se observo que un grupo empeoro globalmente y una mejora significativa general en la dimension E del GMFM (diferencia de mediana: 4,86%; intervalo de confianza al 95% = 0-6,94%) tras la MFM. Algunos parametros de la marcha se normalizaron significativamente (izquierda: rango flexion-cadera, maxima dorsiflexion en apoyo; derecha: velocidad, rotacion pelvica media en apoyo y maxima dorsiflexion en apoyo). Conclusiones. Estos resultados no apoyan ni justifican el uso de la MFM como opcion para el tratamiento de la espasticidad. Insistimos en que esta tecnica debe evitarse fuera de protocolos de estudio. Sin embargo, los resultados asientan una base objetiva para justificar la realizacion de un ensayo clinico y estudios observacionales a largo plazo.

  3. [Carbetocin and oxytocin: Prevention of postpartum hemorrhage in patients with risk factors for uterine atony].

    PubMed

    Carrillo-Gaucín, Santiago; Torres-Gómez, Luis Guillermo

    2016-01-01

    Introducción: en México, en 2010, la hemorragia obstétrica ocupó el segundo lugar (19.6%) como causa directa de muerte materna. El objetivo de este trabajo es evaluar el efecto de la oxitocina y la carbetocina, en la prevención de hemorragia posparto en pacientes con factores de riesgo para atonía uterina. Métodos: estudio tipo ensayo clínico, se incluyeron a pacientes que presentaron al menos uno de los factores de riesgo para atonía uterina. De manera aleatoria, se dividieron en dos grupos: a uno se le administró oxitocina y el otro recibió carbetocina. Se determinaron las siguientes variables: factores de riesgo para atonía uterina, hemoglobina y hematocrito, signos vitales, sangrado transquirúrgico, si presentó o no atonía uterina, uresis, necesidad de uterotónicos adicionales y necesidad de transfusión de hemoderivados. Resultados: se estudiaron un total de120 pacientes en 6 meses, se excluyeron 3, de las cuales 60 fueron tratadas con carbetocina y 57 con oxitocina. Se determinó que existe un mayor número de eventos de atonía uterina (p = 0.007, con RR de 11.06) y, por ende, mayor necesidad de uterotónico adicional (p = 0.027, con RR de 5.44), en el grupo de la oxitocina. No hubo diferencia estadísticamente significativa en el resto de las variables. Conclusiones: Se recomienda carbetocina como profilaxis de hemorragia obstétrica en pacientes con factores de riesgo para atonía uterina.

  4. [Modified tests basophil degranulation and leukocyte migration inhibition factor in drug allergy. Study 2009-2014].

    PubMed

    Irigoyen-Coria, María Lourdes; Rojo-Gutiérrez, María Isabel; Meyer-Gómez, Rubén Humberto; Leyva-Carmona, Isabel; Zendejas-Buitrón, Víctor Manuel; García-Ruiz, Angélica Dinorah; Mellado-Ábrego, Jaime; García-Ortega, Ilayalid; Castillo-Narváez, Gloria

    2016-01-01

    Antecedentes: Existe incremento de reacciones adversas a medicamentos y pocos estudios para el diagnóstico. Objetivo: Determinar la utilidad de pruebas modificadas de degranulación de basófilos (DB) y del factor inhibidor de la migración de leucocitos (LIF, leukocyte migration inhibition factor) para comprobar la hipersensibilidad a medicamentos. Métodos: Se estudiaron 177 pacientes, de uno y otro sexo, con diagnóstico de hipersensibilidad a medicamentos, en quienes se determinó pruebas modificadas de DB, LIF, o ambas entre 2009 y 2014. Se parearon con controles positivos, negativos y población no alérgica. Las solicitudes se emitieron de acuerdo con el tipo de hipersensibilidad, considerando tipo I a DB y tipo IV a LIF Resultados: 170 pacientes (96.04%) fueron positivos al menos a un medicamento (RR, 4.71). Se realizaron 561 pruebas modificadas de DB (73.62%) y 201 de LIF (26.37%). El sexo femenino fue más frecuente (64.41%); la edad promedio fue de 38.5 años. La prueba modificada de DB resultó positiva en 70.23% y la de LIF en 67.16%. La sensibilidad de las pruebas se incrementó en forma complementaria y a dos diluciones. La correlación de las pruebas fue altamente significativa. Conclusiones: Las mujeres presentan más reacciones a fármacos. La prueba modificada de DB es útil en cualquier edad. Como los medicamentos pueden activar uno u otro mecanismo de hipersensibilidad es importante solicitar las pruebas simultáneamente.

  5. Liver support by extracorporeal blood purification: a clinical observation.

    PubMed

    Stange, J; Mitzner, S R; Klammt, S; Freytag, J; Peszynski, P; Loock, J; Hickstein, H; Korten, G; Schmidt, R; Hentschel, J; Schulz, M; Löhr, M; Liebe, S; Schareck, W; Hopt, U T

    2000-09-01

    Liver failure associated with excretory insufficiency and jaundice results in an endogenous accumulation of toxins involved in the impairment of cardiovascular, kidney, and cerebral function. Moreover, these toxins have been shown to damage the liver itself by inducing hepatocellular apoptosis and necrosis, thus creating a vicious cycle of the disease. We report a retrospective cohort study of 26 patients with acute or chronic liver failure with intrahepatic cholestasis (bilirubin level > 20 mg/dL) who underwent a new extracorporeal blood purification treatment. A synthetic hydrophilic/hydrophobic domain-presenting semipermeable membrane (pore size < albumin size, 100-nm thick) was used for extracorporeal blood detoxification using dialysis equipment. The opposite side was rinsed with ligandin-like proteins as molecular adsorbents that were regenerated online using a chromatography-like recycling system (molecular adsorbent recirculating system [MARS]). Bile acid and bilirubin levels, representing the previously described toxins, were reduced by 16% to 53% and 10% to 90% of the initial concentration by a single treatment of 6 to 8 hours, respectively. Toxicity testing of patient plasma onto primary rat hepatocytes by live/dead fluorescence microscopy showed cell-damaging effects of jaundiced plasma that were not observed after treatment. Patients with a worsening of Child-Turcotte-Pugh (CTP) index before the treatments showed a significant improvement of this index during a period of 2 to 14 single treatments with an average of 14 days. After withdrawal of MARS treatment, this improvement was sustained in all long-term survivors. Ten patients represented a clinical status equivalent to the United Network for Organ Sharing (UNOS) status 2b (group A1), and all survived. Sixteen patients represented a clinical status equivalent to UNOS status 2a, and 7 of these patients survived (group A2), whereas 9 patients (group B) died. We conclude that in acute excretory failure

  6. Grazer Effects on Stream Primary Production and Nitrate Utilization: Estimating Feedbacks Under Reduced Nitrate Levels at High-Temporal Resolutions from the Patch to Reach-Scale

    NASA Astrophysics Data System (ADS)

    Reijo, C. J.; Cohen, M. J.

    2015-12-01

    While nutrient enrichment is often identified as the leading cause for changes in stream gross primary production (GPP) and shifts in vegetative communities, other factors such as grazers influence overall stream structure and function. Evidence shows that grazers are a top-down control on algae in streams; however, the specific feedbacks between overall stream metabolism, grazer effects, and nutrient cycling have been variable and little is known about these interactions at nutrient levels below ambient. To further our understanding of these linkages, a nutrient depletion chamber was created and paired with high-resolution in situ sensors to estimate stream metabolism and characterize nitrate uptake (UNO3) pathways (i.e. plant uptake and denitrification). The Plexiglas chamber blocks flow and nutrient supply, inserts into upper sediments, allows light in and sediment-water-air interactions to occur. At Gum Slough Springs, FL, nitrate was reduced from ambient levels (1.40 mg N/L) to below regulatory thresholds (ca. 0.20 mg N/L) within one week. Paired chambers with and without the presence of snails (Elimia floridensis) were deployed across submerged aquatic vegetation (SAV; Vallisneria americana) and algae (Lyngbya) substrates. Results show that GPP and UNO3 were higher under SAV (70 g O2/m2/d and 300 mg NO3/m2/d, respectively) and a general lack of nutrient limitation even at low [NO3]. Grazer effects differed by vegetation type as it alleviated the reduction of NO3 levels and GPP under SAV but enhanced the decrease of algal GPP and NO3 levels over time. Continued work includes estimating grazer effects on denitrification, quantifying snail nutrient excretion contributions, and scaling up all estimates from the patch to reach level. Overall, this study will further our understanding of grazer-production-nutrient interactions within stream systems, making it possible to predict changes in feedbacks when one part of the biotic or abiotic ecosystem is altered.

  7. [Frequency of invasive fungal infections in a Mexican High-Specialty Hospital. Experience of 21 years].

    PubMed

    Méndez-Tovar, Luis Javier; Mejía-Mercado, Jessica Aline; Manzano-Gayosso, Patricia; Hernández-Hernández, Francisca; López-Martínez, Rubén; Silva-González, Israel

    2016-01-01

    Introducción: Factores como el cáncer, la infección por VIH, así como el uso de esteroides y antibióticos, incrementan el número de micosis invasivas (MI). Métodos: Para conocer la frecuencia y algunos aspectos epidemiológicos de las MI en un hospital del IMSS, se revisaron los casos probados diagnosticados en los últimos 21 años (1993-2013) en el Laboratorio de Micología Médica. Resultados: Se identificaron 472 casos, distribuidos en: 261 candidosis, 82 mucormicosis, 60 criptococosis, 43 aspergilosis y 16 histoplasmosis. La candidosis disminuyó de 74 casos en los primeros 6 años, a 48 en los cinco últimos. La localización principal fue pulmonar y el principal agente fue C. albicans. La criptococosis también disminuyó de 24 a 10 casos, principalmente fue causada por C. neoformans, aunque hubo dos casos de C. laurentii, uno de C. terreus y uno de C. unigutulatus. La mucormicosis se mantuvo constante, pero la aspergilosis se incrementó pasando de 2 casos en el primer periodo a 23 en el último. Conclusiones: Es importante que los hospitales de alta especialidad, cuenten con laboratorios de micología médica para realizar el diagnóstico de MI. Se sugiere crear un Centro Nacional de Referencia de Micosis donde se concentren los datos de estas infecciones y contribuya en la elaboración de planes de educación para la salud, prevención, diagnóstico y tratamiento de las mismas.

  8. [Dapagliflozin, a novel oral antidiabetic with an uncertain future].

    PubMed

    Escudero Vilaplana, Belén; Almodóvar Carretón, María José; Herrero Hernández, Silvia

    2014-11-03

    Objetivo: La diabetes mellitus tipo 2 (DM2) es uno de los principales problemas sociosanitarios a nivel mundial, para la que existen multitud de tratamientos. Recientemente, se ha aprobado el primer farmaco de una nueva familia de antidiabeticos orales (ADO): la dapagliflozina. Nuestro objetivo es revisar la evidencia cientifica disponible sobre la dapagliflozina, con el fin de analizar su eficacia, seguridad y coste y poder estimar su papel en la farmacoterapia actual de la DM2. Métodos: La eficacia y seguridad de la dapagliflozina se analizaron mediante una evaluacion de la evidencia cientifica. El coste de los diferentes ADO se calculo en base a sus dosis diarias definidas (DDD) y al precio de venta del laboratorio. Resultados: Se identificaron 7 ensayos clinicos aleatorizados: 2 en monoterapia (840 pacientes) y 5 en terapia combinada con otros antidiabeticos (3184 pacientes). En los 7 ensayos, la dapagliflozina redujo la concentracion de HbA1c; en todos se comparo con placebo, salvo en un estudio en terapia combinada que se comparo frente a farmaco activo (glipizida). Entre los efectos adversos mas frecuentes se detectaron infecciones genitourinarias e hipotension, aunque se debe prestar especial atencion al incremento del cancer de vejiga. Junto con los inhibidores de la DPP-4, la dapagliflozina es uno de los ADO de mayor coste (coste anual de DDD=729,3 euros). Conclusiones: La dapagliflozina no aporta ventajas respecto a la farmacoterapia de la DM2 ya existente. Su falta de experiencia de uso, la ausencia de importantes beneficios clinicos y su elevado coste hacen necesario restringir su utilizacion.

  9. Development of a Low-Cost Arduino-Based Sonde for Coastal Applications

    PubMed Central

    Lockridge, Grant; Dzwonkowski, Brian; Nelson, Reid; Powers, Sean

    2016-01-01

    This project addresses the need for an expansion in the monitoring of marine environments by providing a detailed description of a low cost, robust, user friendly sonde, built on Arduino Mega 2560 (Mega) and Arduino Uno (Uno) platforms. The sonde can be made without specialized tools or training and can be easily modified to meet individual application requirements. The platform allows for internal logging of multiple parameters of which conductivity, temperature, and GPS position are demonstrated. Two design configurations for different coastal hydrographic applications are highlighted to show the robust and versatile nature of this sensor platform. The initial sonde design was intended for use on a Lagrangian style surface drifter that recorded measurements of temperature; salinity; and position for a deployment duration of less than 24 h. Functional testing of the sensor consisted of a 55 h comparison with a regularly maintained water quality sensor (i.e., YSI 6600 sonde) in Mobile Bay, AL. The temperature and salinity data were highly correlated and had acceptable RMS errors of 0.154 °C and 1.35 psu for the environmental conditions. A second application using the sonde platform was designed for longer duration (~3–4 weeks); subsurface (1.5–4.0 m depths) deployment, moored to permanent structures. Design alterations reflected an emphasis on minimizing power consumption, which included the elimination of the GPS capabilities, increased battery capacity, and power-saving software modifications. The sonde designs presented serve as templates that will expand the hydrographic measurement capabilities of ocean scientists, students, and teachers. PMID:27089337

  10. [Mango: agroindustrial aspects, nutritional/functional value and health effects].

    PubMed

    Wall-Medrano, Abraham; Olivas-Aguirre, Francisco J; Velderrain-Rodriguez, Gustavo R; González-Aguilar, A; de la Rosa, Laura A; López-Díaz, Jose A; Álvarez-Parrilla, Emilio

    2014-11-01

    Objetivo: Revisar y discutir la información más reciente sobre el valor agroindustrial, funcional y nutricional de uno de los frutos de mayor cultivo, exportación y consumo en México: el Mango. Métodos: Se realizó una búsqueda en diversas bases de datos (PubMed, Cochrane, ScienceDirect) y documentos de libre acceso (Google Scholar) sobre Mangifera indica L. Esta información fue posteriormente sub-clasificada en aspectos agroindustriales, nutricionales, funcionales y efectos a la salud. Resultados: Uno de cada veinte mangos consumidos mundialmente, es mexicano. “Ataulfo” es la variedad la de mayor importancia agronómica. El procesamiento mínimo de su pulpa (MP) genera residuos de cáscara (MC) y semilla con alto potencial nutracéutico. MP y MC son buenas fuentes de ascorbato, fructosa, fibra dietarias soluble (MP, almidones y ramnogalacturonanos) e insoluble (MC, ligninas y hemicelulosa) y lípidos funcionales (MP). MP y MC poseen un perfil de compuestos fenólicos (CF) monoméricos (MP) como el acido gálico y el protocatehuico y poliméricos (MC) como la -PGG asociados con efectos anti-obesigénicos, anti-inflamatorios, anti-cancerigenos y anti-diabeticos. Estos beneficios son dependientes de la bioaccesibilidad (liberación de su matriz alimentaria) y destino metabólico (biodisponibilidad) de estos CF. Discusión: El mango resulta una valiosa fuente de compuestos antioxidantes con comprobado beneficio a la salud. Sin embargo, factores como la variedad, temporalidad de cultivos, tratamientos pre y post-cosecha, extracción de bioactivos y algunas barreras fisiológicas pueden modificar su potencial nutracéutico.

  11. [Peripheral vertigo versus central vertigo. Application of the HINTS protocol].

    PubMed

    Batuecas-Caletrío, Ángel; Yáñez-González, Raquel; Sánchez-Blanco, Carmen; González-Sánchez, Enrique; Benito, José; Gómez, José Carlos; Santa Cruz-Ruiz, Santiago

    2014-10-16

    Introduccion. Uno de los dilemas mas importantes concernientes al vertigo en urgencias es su diagnostico diferencial. Existen signos de alarma de gran sensibilidad en la exploracion que pueden ponernos en la pista de encontrarnos ante un vertigo central. Objetivo. Determinar la eficacia de la aplicacion del protocolo HINTS en el diagnostico del accidente cerebrovascular que simula un vertigo periferico. Pacientes y metodos. Estudio observacional descriptivo sobre pacientes ingresados con diagnostico de sindrome vestibular agudo en urgencias. Todos los pacientes fueron objeto de un seguimiento diario hasta la mejoria de sus sintomas con informacion del nistagmo, la maniobra de impulso oculocefalico y el test de skew. Se comparan los resultados del estudio de resonancia magnetica con la alteracion en alguno de esos tres signos a lo largo del ingreso del enfermo. Resultados. Se reunio a 91 pacientes, con una edad media de 55,8 años. Se objetivo un accidente cerebrovascular en ocho de ellos. De estos (edad media: 71 años), en siete existia una alteracion en alguno de los signos HINTS y en uno el estudio fue normal (sensibilidad: 0,88; especificidad: 0,96). Todos ellos tenian algun factor de riesgo vascular. Conclusiones. Una exploracion adecuada y dirigida ante un paciente que acude a urgencias con un sindrome vestibular agudo resulta de vital importancia para establecer el diagnostico diferencial entre la patologia periferica y la central, ya que algunos accidentes cerebrovasculares se pueden presentar bajo la apariencia de un vertigo agudo. Aplicar un protocolo como HINTS permite sospechar la patologia central con una gran sensibilidad y especificidad.

  12. Effects of the Share 35 Rule on Waitlist and Liver Transplantation Outcomes for Patients with Hepatocellular Carcinoma

    PubMed Central

    Croome, Kristopher P.; Lee, David D.; Harnois, Denise; Taner, C. Burcin

    2017-01-01

    Introduction Several studies have investigated the effects following the implementation of the “Share 35” policy; however none have investigated what effect this policy change has had on waitlist and liver transplantation (LT) outcomes for hepatocellular carcinoma(HCC). Methods Data were obtained from the UNOS database and a comparison of the 2 years post-Share 35 with data from the 2 years pre-Share 35 was performed. Results In the pre-Share35 era, 23% of LT were performed for HCC exceptions compared to 22% of LT in the post-Share35 era (p = 0.21). No difference in wait-time for HCC patients was seen in any of the UNOS regions between the 2 eras. Competing risk analysis demonstrated that HCC candidates in post-Share 35 era were more likely to die or be delisted for “too sick” while waiting (7.2% vs. 5.3%; p = 0.005) within 15 months. A higher proportion of ECD (p<0.001) and DCD (p<0.001) livers were used for patients transplanted for HCC, while lower DRI organs were used for those patients transplanted with a MELD≥35 between the 2 eras (p = 0.007). Conclusion No significant change to wait-time for patients listed for HCC was seen following implementation of “Share 35”. Transplant program behavior has changed resulting use of higher proportion of ECD and DCD liver grafts for patients with HCC. A higher rate of wait list mortality was observed in patients with HCC in the post-Share 35 era. PMID:28122003

  13. [Status epilepticus in paediatrics: a retrospective study and review of the literature].

    PubMed

    Moreno-Medinilla, Esther E; Negrillo-Ruano, Rocío; Calvo-Medina, Rocío; Mora-Ramírez, M Dolores; Martínez-Antón, Jacinto L

    2015-05-01

    Introduccion. El estado epileptico (EE) es la emergencia neurologica mas frecuente en pediatria. Dada la posibilidad de secuelas neurologicas y mortalidad asociadas, requiere un tratamiento agresivo precoz. Pacientes y metodos. Estudio descriptivo retrospectivo a traves de la revision de historias clinicas de pacientes ingresados en nuestro hospital entre 2010-2013 con diagnostico de EE. El objetivo fue describir las caracteristicas epidemiologicas y el manejo de estos pacientes, asi como revisar la bibliografia disponible sobre este tema. Resultados. Hemos recogido 39 pacientes (25 varones) y 51 episodios de EE. Edad media: 4,8 años. Tenian enfermedad de base 22 pacientes. Dieciocho eran epilepticos conocidos y cinco tuvieron un EE previo. De los 51 episodios de EE, 33 fueron sintomaticos, 15 febriles y tres criptogenicos. Los tipos de EE fueron: 25 parciales (de ellos, 16 complejos) y 26 generalizados. El tratamiento de primera eleccion fue benzodiacepinas en 47 pacientes (40, diacepam), fenitoina en tres y acido valproico en uno. Veintisiete pacientes precisaron farmacos de segunda linea: 16, acido valproico; ocho, fenitoina; dos, fenobarbital; y uno, levetiracetam. Diez pacientes precisaron farmacos de tercera linea para la induccion del coma: el midazolam fue el mas utilizado en nuestro centro, seguido del tiopental y el propofol. Dos EE superrefractarios requirieron inmunoglobulinas y corticoides sistemicos por presentarse en el curso de encefalitis autoinmunes. Conclusiones. Debe plantearse el esquema terapeutico del EE desde el inicio de cualquier crisis convulsiva. El tratamiento es escalonado, con benzodiacepinas en la primera etapa, antiepilepticos de amplio espectro y disponibilidad intravenosa en la segunda (acido valproico, levetiracetam en el EE generalizado y fenitoina en el EE focal), mientras que el tercer nivel varia en funcion de la experiencia de cada equipo.

  14. [Prevalence of domestic violence in pregnant women from 20 to 35 years in a family medicine unit].

    PubMed

    Cervantes-Sánchez, Paulina; Delgado-Quiñones, Edna Gabriela; Nuño-Donlucas, María Olimpia; Sahagún-Cuevas, Minerva Natalia; Hernández-Calderón, Jéssica; Ramírez-Ramos, Joana Kareli

    2016-01-01

    Introducción: la violencia contra la mujer es uno de los problemas sanitarios de mayor relevancia en los últimos tiempos. Durante el embarazo se reporta un 21.5 % de prevalencia en nuestro país y se cree que esta está subdiagnosticada. El objetivo fue conocer la prevalencia de violencia intrafamiliar en embarazadas de 20 a 35 años de la Unidad de Medicina Familiar 171 (UMF 171) del Instituto Mexicano del Seguro Social. Métodos: estudio transversal-descriptivo con pacientes embarazadas de 20 a 35 años con una muestra de 102 embarazadas a las cuales se les aplicó un cuestionario sociodemográfico y el instrumento índice de severidad de violencia de pareja (ISVP). Se utilizó media, porcentajes y chi cuadrada para los resultados. Resultados: el 18.6 % de las participantes (n = 19) padeció violencia. De estas la violencia física se presentó en el 10.8 % (n = 11), seguida de la violencia psicológica en un 5.9 % (n = 6) y la violencia sexual en 4 % (n = 4). Se empleó chi cuadrada entre la variable violencia y cada uno de los factores sociodemográficos: 52.6 % (n = 10) eran casadas (p 0.005), 26.3 % (n = 5) tenían licenciatura (p 0.074), 57.8 % (n = 11) habían planeado su embarazo, 47.3 % (n = 9) cursaban el tercer trimestre de embarazo y 78.95 % (n = 15) tenían un trabajo entre obreras, comerciantes o profesionistas (p 0.016). Conclusiones: la violencia intrafamiliar es un problema presente en las embarazadas de la UMF 171, con una prevalencia de 18.6 %.

  15. [Hemicrania continua and paroxysmal hemicrania: clinical and therapeutic characteristics in a series of 23 patients].

    PubMed

    Benítez-Rivero, Sonia; González-Oria, Carmen; Gómez-Caravaca, Teresa; Bernal Sánchez-Arjona, María; Jiménez-Hernández, M Dolores

    2014-10-16

    Introduccion. Las hemicraneas son cefaleas raras caracterizadas por dolor estrictamente unilateral, bien como una cefalea continua, aunque fluctuante, en la hemicranea continua (HC), o en forma de ataques recurrentes en la hemicranea paroxistica (HP). En ambos tipos de cefalea se describe una respuesta absoluta a la indometacina. Objetivo. Analizar el cumplimiento de los criterios diagnosticos actuales para HC y HP, y la reciente introduccion de la HC en el grupo de las cefaleas trigeminoautonomicas. Pacientes y metodos. Evaluamos retrospectivamente las caracteristicas clinicas y terapeuticas de pacientes diagnosticados de HC o HP. Incluimos informacion demografica, sintomatologia, escala analogica de dolor y respuesta a la indometacina. Resultados. Evaluamos una muestra de 12 pacientes con HC (cuatro hombres y ocho mujeres) de un total de 520 casos (2,3%). Edad media de inicio: 47,1 ± 16,4 años. Intensidad de dolor basal: 3,3 ± 1,9. Exacerbaciones: 9,2 ± 1,1. Ocho casos (66,7%) presentaban sintomas autonomicos, cuatro (33,3%) tenian patron horario y dos (16,7%) no respondieron a la indometacina. Evaluamos una muestra de 11 pacientes con HP (100% mujeres) de 520 casos (2,1%). Edad media de inicio: 37,0 ± 13,9 años. Intensidad de dolor: 8,7 ± 2,7. Nueve casos (81,8%) presentaban sintomas autonomicos, tres (27,3%) tenian patron horario y uno (9,1%) no respondio a la indometacina. Conclusiones. Las hemicraneas son diagnosticos infrecuentes en consultas de cefalea. Su diagnostico requiere el cumplimiento de unos criterios que a veces no se cumplen en su totalidad. Pensamos que se precisa una revision de los criterios y apoyamos que la HC se haya introducido recientemente en el grupo de las cefaleas trigeminoautonomicas.

  16. Space Radar Image of Mammoth Mountain, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    cover and alpine glaciers are critical to the radiation and water balances. SIR-C/X-SAR is a powerful tool because it is sensitive to most snowpack conditions and is less influenced by weather conditions than other remote sensing instruments, such as Landsat. In parallel with the operational SIR-C data processing, an experimental effort is being conducted to test SAR data processing using the Jet Propulsion Laboratory's massively parallel supercomputing facility, centered around the Cray Research T3D. These experiments will assess the abilities of large supercomputers to produce high throughput SAR processing in preparation for upcoming data-intensive SAR missions. The images released here were produced as part of this experimental effort. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  17. Space Radar Image of San Rafael Glacier, Chile

    NASA Technical Reports Server (NTRS)

    1994-01-01

    means. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) are part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm), and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes that are caused by nature and those changes that are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  18. Space Radar Image of Mount Pinatubo Volcano, Philippines

    NASA Technical Reports Server (NTRS)

    1994-01-01

    radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  19. Space Radar Image of Mt. Rainer, Washington

    NASA Technical Reports Server (NTRS)

    1994-01-01

    White River, and the river leaving the mountain at the bottom right of the image (south) is the Nisqually River, which flows out of the Nisqually glacier on the mountain. The river leaving to the left of the mountain is the Carbon River, leading west and north toward heavily populated regions near Tacoma. The dark patch at the top right of the image is Bumping Lake. Other dark areas seen to the right of ridges throughout the image are radar shadow zones. Radar images can be used to study the volcanic structure and the surrounding regions with linear rock boundaries and faults. In addition, the recovery of forested lands from natural disasters and the success of reforestation programs can also be monitored. Ultimately this data may be used to study the advance and retreat of glaciers and other forces of global change. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: the L-band (24 cm), the C-band (6 cm) and the X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  20. Space Radar Image of Safsaf, North Africa

    NASA Technical Reports Server (NTRS)

    1999-01-01

    ratio --or some combination of all three -- respond to the roughness of the radar backscattering surface. Using this coloring scheme, areas that appear bright at both L-band and C-band are colored yellow, while areas that appear brighter at L-band than C-band appear more blue. Detailed analysis of this scene indicates that the separate C-band and L-band images used to produce this color composite have a very similar overall appearance. This suggests that the C-band and the L-band signals are both easily penetrating the thin 1- to 12-centimeter (0.5- to 5-inch) 'average' surface cover of loose windblown sand, and are commonly 'seeing' similar interfaces just below that cover. This radar interface may be at the scattered rocky outcrops on the ground surface, but is more likely to be the shallow underlying surfaces of river gravel or bedrock, which are generally covered by only a few inches of windblown sand. Virtually everything visible on this radar composite image cannot be seen, either when standing on the ground or when viewing photographs or satellite images such as the United States' Landsat or the French SPOT satellite. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency

  1. Space Radar Image of Yellowstone Park, Wyoming

    NASA Technical Reports Server (NTRS)

    1994-01-01

    indicates areas of canopy burn and mixed burn with a biomass of between 12 to 20 tons per hectare; light green is mixed burn and on-burn forest with a biomass of 20 to 35 tons per hectare; and green is non-burned forest with a biomass of greater than 35 tons per hectare. Forest recovery from the fire seems to depend on fire intensity and soil conditions. In areas of severe canopy burn and poor soil conditions, crown biomass was still low in 1994 (indicated by the brown areas at the center left), whereas in areas of mixed burn with nutrient-rich soils, seen west of Yellowstone Lake, crown biomass has increased significantly in six years (indicated by the yellow and light green areas). Imaging fire-affected regions with spaceborne radar illustrates SIR-C/X-SAR's keen abilities to monitor regrowth after a fire. Knowing the amount of carbon accumulated in the atmosphere by regenerating forest in the 20 to 50 years following a fire disturbance is also a significant factor in understanding the global carbon cycle. Measuring crown biomass is necessary to evaluate the effects of past and future fires in specific regions. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) are part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm), and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes that are caused by nature and those changes that are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche

  2. Space Radar Image of Bahia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    . The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI) with the Deutsche Forschungsanstalt fuer luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  3. Europe opens a window onto a violent Universe

    NASA Astrophysics Data System (ADS)

    2002-10-01

    In the framework of ESA's cooperation with Russia, a Russian Proton launcher was chosen to place the Integral (INTErnational Gamma-Ray Astrophysics Laboratory) observatory in orbit. The launcher lifted off from Baikonur in Kazakhstan today at 10:41 local time (06:41 CEST). After re-ignition of its upper stage, it placed Integral in its 72-hour elliptical orbit, ranging from only 10000 km up to 153000 km from the Earth, i.e. nearly half the distance to the Moon. Controlled by ESA’s ESOC mission operations centre in Darmstadt in Germany, the satellite will now undergo a two-months test period intended first to verify that the instruments onboard are working correctly and then that the data they collect is of good quality. Integral was developed by Italy's Alenia Spazio supported by over 30 firms in Europe. The satellite (mass 4 000 kg, height 5 metres) has two main instruments: the SPI spectrometer and IBIS imager Developed by a Franco-German-led team, the spectrometer will conduct a spectral analysis of isolated sources and of regions of gamma-ray activity with unprecedented energy resolution (40 times better than previous satellites), using germanium detectors cooled to 85 K. Since mirrors and lenses are of no use in detecting gamma rays, the SPI uses the “coded-mask imaging” technique to form its images from very faint radiation. These images are then decoded by computer. The imager, designed by an Italian-led team, is the perfect partner for SPI. It has a weaker energy resolution, but an angular resolution 12 times sharper thanks to a coded mask optimised for the purpose and two new-generation detector layers. To supplement the observations by SPI and IBIS, Integral also carries a Danish X-ray imager (JEM-X), with twin detectors each fitted with coded masks, and a Spanish CCD imager (OMC) operating in the visible spectrum waveband. By combining the data collected by these four instruments, it will be possible, for the first time, to make simultaneous

  4. Space Radar Image of Death Valley in 3-D

    NASA Technical Reports Server (NTRS)

    1999-01-01

    -SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fur Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  5. Space Radar Image of Kilauea, Hawaii in 3-D

    NASA Technical Reports Server (NTRS)

    1999-01-01

    erupted travels the 8 kilometers (5 miles) from the Pu'u O'o crater (the active vent) just outside this image to the coast through a series of lava tubes, but in the past there have been many large lava flows that have traveled this distance, destroying houses and parts of the Hawaii Volcanoes National Park. This SIR-C/X-SAR image shows two types of lava flows that are common to Hawaiian volcanoes. Pahoehoe lava flows are relatively smooth, and appear very dark blue because much of the radar energy is reflected away from the radar. In contrast other lava flows are relatively rough and bounce much of the radar energy back to the radar, making that part of the image bright blue. This radar image is valuable because it allows scientists to study an evolving lava flow field from the Pu'u O'o vent. Much of the area on the northeast side (right) of the volcano is covered with tropical rain forest, and because trees reflect a lot of the radar energy, the forest appears bright in this radar scene. The linear feature running from Kilauea Crater to the right of the image is Highway 11leading to the city of Hilo which is located just beyond the right edge of this image. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio

  6. Space Radar Image of Yellowstone Park, Wyoming

    NASA Technical Reports Server (NTRS)

    1994-01-01

    indicates areas of canopy burn and mixed burn with a biomass of between 12 to 20 tons per hectare; light green is mixed burn and on-burn forest with a biomass of 20 to 35 tons per hectare; and green is non-burned forest with a biomass of greater than 35 tons per hectare. Forest recovery from the fire seems to depend on fire intensity and soil conditions. In areas of severe canopy burn and poor soil conditions, crown biomass was still low in 1994 (indicated by the brown areas at the center left), whereas in areas of mixed burn with nutrient-rich soils, seen west of Yellowstone Lake, crown biomass has increased significantly in six years (indicated by the yellow and light green areas). Imaging fire-affected regions with spaceborne radar illustrates SIR-C/X-SAR's keen abilities to monitor regrowth after a fire. Knowing the amount of carbon accumulated in the atmosphere by regenerating forest in the 20 to 50 years following a fire disturbance is also a significant factor in understanding the global carbon cycle. Measuring crown biomass is necessary to evaluate the effects of past and future fires in specific regions. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) are part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm), and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes that are caused by nature and those changes that are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche

  7. Space Radar Image of Prince Albert, Canada, seasonal

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  8. Space Radar Image of Weddell Sea, Antarctica

    NASA Technical Reports Server (NTRS)

    1994-01-01

    . Oceanographers believe this process forms most of the oceans' deep water. Sea ice covering all of the southern oceans, including the Weddell Sea, typically reaches its most northerly extent in about September. As periods of daylight become gradually longer in the Southern Hemisphere, ice formation stops and the ice edge retreats southward. By February, most of the sea ice surrounding Antarctica disappears. Imaging radar is extremely useful for studying the polar regions because of the long periods of darkness and extensive cloud cover. The multiple frequencies of the SIR-C/X-SAR instruments allow further study into ways of improving the separation of the various thickness ranges of sea ice, which are vital to understanding the heat balance in the ice, ocean and atmospheric system. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  9. [In Process Citation].

    PubMed

    Aguilar Cordero, María José; Rodríguez Blanquet, Raquel; Sánchez García, Juan Carlos; Sánchez López, Antonio Manuel; Baena García, Laura; López Contreras, Gracia

    2016-02-16

    Introducción: el entrenamiento mediante ejercicio físico moderado durante el periodo de gestación aporta beneficios tanto a la mujer embarazada como al feto. Los trabajos de investigación consultados vinculan la actividad física con una reducción del número de cesáreas, de partos instrumentados y con un parto más fisiológico. Previene igualmente la ganancia excesiva de peso de la mujer, disminuye el riesgo de diabetes gestacional y de hipertensión arterial.Objetivo: el objetivo de esta investigación es conocer si un programa de ejercicio físico de carácter moderado con el método Study Water Exercise Pregnant (SWEP), realizado en un medio acuático, contribuye a obtener unos resultados más favorables en la etapa perinatal, tanto para la mujer como para el bebé.Material y métodos: el diseño que se llevará a cabo es un ensayo clínico aleatorizado. La muestra estará constituida por 364 gestantes, obtenida de un universo total de 6.579 partos acontecidos en Granada (España) durante el año 2014. Dicha muestra se ha dividido en dos grupos, uno de intervención y otro de control. La actividad se realizará en las instalaciones deportivas acuáticas de la Facultad de Ciencias del Deporte de la Universidad de Granada, que cuentan con dos vasos adecuados a nuestros objetivos, uno polivalente de 25 metros y otro de enseñanza de 12,5 metros.  Resultados: el programa de ejercicios diseñado específicamente para el proyecto denominado SWEP, abarca desde la 20 hasta la 37 semana de gestación (SG) y consta de tres sesiones semanales, con una duración de 60 minutos cada una. Las sesiones incluirán tres fases: fase de calentamiento, fase principal en la que el ejercicio se divide en una parte aeróbica y otra de ejercicios de fuerza y resistencia y una final con estiramientos y relajación. Las variables que se van a estudiar son las siguientes: a) maternas: peso, IMC, tensión arterial, test de O´Sullivan, aparición de depresión postparto

  10. PREVALENCE OF METABOLIC SYNDROME IN YOUNG MEXICANS: A SENSITIVITY ANALYSIS ON ITS COMPONENTS.

    PubMed

    Murguía-Romero, Miguel; Jiménez-Flores, J Rafael; Sigrist-Flores, Santiago C; Tapia-Pancardo, Diana C; Jiménez-Ramos, Arnulfo; Méndez-Cruz, A René; Villalobos-Molina, Rafael

    2015-07-28

    Introducción: la obesidad es una epidemia mundial y la alta prevalencia de diabetes tipo II (DM2) y de enfermedad cardiovascular (ECV) es, en gran parte, consecuencia de esta epidemia. El síndrome metabólico (SMet) es una herramienta útil para estimar el riesgo de que una población de jóvenes evolucione a DM2 y ECV. Objetivo: estimar la prevalencia del SMet en jóvenes mexicanos, y evaluar cada parámetro como un indicador independiente mediante análisis de sensibilidad. Métodos: se estimó la prevalencia del SMet en 6.063 jóvenes del área metropolitana de Ciudad de México. Se realizó un análisis de sensibilidad para estimar la eficiencia de cada uno de los componentes del SMet como un indicador de la presencia del mismo SMet. Se calcularon cinco estadísticos del análisis de sensibilidad para cada uno de los componentes del SMet y otros parámetros, incluidos: sensibilidad, especificidad, valor predictivo positivo, valor predictivo negativo y precisión. Resultados: la prevalencia del SMet en la población de jóvenes mexicanos se estimó en 13.4%. La circunferencia de la cintura presentó la sensibilidad más alta (96.8% mujeres; 90.0% hombres); en las mujeres, la presión arterial presentó la más alta especificidad (97.7%) y en los hombres la glucosa (91.0%). Cuando se consideran los cinco estadísticos, los triglicéridos son el componente con los valores más altos, con valores del 75% o mayores para cuatro de estos. En los jóvenes sin alteraciones se detecta diferencia entre sexos para los promedios de todos los componentes del SMet. Conclusiones: los jóvenes mexicanos son altamente propensos a adquirir SMet: el 71% tiene cuando menos uno y hasta cinco parámetros del SMet alterados, y el 13.4% de ellos tiene SMet. De los cinco componentes del SMet, la circunferencia de la cintura presentó la más alta sensibilidad como predictor del SMet, y los triglicéridos es el mejor parámetro predictor en jóvenes mexicanos si solo se considera un

  11. [FIXING DEVICE FOR CLOSING AND COUPLING AN INTRAVENOUS CATHETER].

    PubMed

    Soriano, Enrique; García, Jesús M; Blaya, Fernando; Islán, Manuel E; Gallego, Luis Tomás; Franco-López, Ángeles; García de Lorenzo, Abelardo

    2015-09-01

    Introducción: los medios de fijación a la piel de un catéter venoso periférico, de un catéter venoso central o de un catéter arterial central presentan los siguientes graves inconvenientes: ser la sede de infecciones a nivel del lugar de la punción, provocar una saturación de la zona anatómica, la cual resulta muy difícil de soportar e incómodo para el paciente portador, y suponer un riesgo para el personal de enfermería cuando se usan hilos de sutura para fijar el soporte del catéter. Objetivo: por lo anteriormente expuesto, se ha detectado la necesidad de diseñar un dispositivo que reduzca la complejidad y aparatosidad de los sistemas conocidos y empleados en la actualidad, favoreciendo la asepsia y la movilidad del paciente. Método: el desarrollo presentado en este artículo se refiere a un sistema mecánico de fijación, cierre y acoplamiento para catéter de perfusión intravenosa. El sistema dispone de una pieza circular de pequeño espesor con al menos dos orificios para su fijación subcutánea, centralmente de uno o más conductos para acoplar lúmenes, y de una parte cilíndrica hueca que sobresale a uno de los lados, exteriormente roscada e interiormente lisa con un tetón de posición. Para uso domiciliario se dispone de un tapón de estanqueidad con uno o más tubos de pequeño diámetro que se acoplan en los orificios para lúmenes, una ranura de posición, un tirador y un tapón roscado ciego para el cierre hermético con la parte roscada. Para uso hospitalario se dispone de un tapón intermedio con una o más entradas para lúmenes, así como de un tapón roscado hueco que permite su acoplamiento hermético con la parte roscada. Resultados: el desarrollo descrito en este artículo va a ser utilizado en dos ambientes: ambiente domiciliario y ambiente hospitalario. Además, reduce el riesgo de infección y saturación de la zona anatómica de los pacientes en los que se realiza la punción cutánea en la que se fijan catéteres venosos

  12. [TRIGLYCERIDE LEVELS AS A RISK FACTOR DURING PREGNANCY; BIOLOGICAL MODELING; SYSTEMATIC REVIEW].

    PubMed

    Aguilar Cordero, María José; Baena García, Laura; Sánchez López, Antonio Manuel; Guisado Barrilao, Rafael; Hermoso Rodríguez, Enrique; Mur Villar, Norma; Capel Tuñón, Manuel

    2015-08-01

    Introducción: algunas de las patologías que se pueden presentar en el embarazo (diabetes gestacional, hipertensión y preeclampsia) se están relacionando con un aumento del riesgo de padecer enfermedades cardiovasculares a lo largo de la vida. Esto se debe tener en cuenta en las futuras valoraciones de la salud de las mujeres. Uno de los biomarcadores más importantes en las enfermedades cardiovasculares es el nivel de triglicéridos, que experimenta un importante cambio durante la gestación. Objetivo: el objetivo de esta revisión es analizar los estudios que han investigado los niveles de triglicéridos durante el embarazo como factor de riesgo cardiovascular en las últimas semanas de gestación y en el parto. Métodos: se ha efectuado una búsqueda sistemática y se seleccionaron 14 artículos específicos sobre el tema, siguiendo las directrices PRISMA. Resultados: en el embarazo normal tiene lugar un descenso del nivel de lípidos en las primeras semanas, seguido de un aumento progresivo, especialmente notable a partir de la semana 12 de gestación. Este incremento de las concentraciones plasmáticas de lípidos circulantes se produce de forma lineal, hasta alcanzar un pico máximo unos días antes del parto. Esta subida se debe al aumento de los niveles de estrógenos y a la resistencia a la insulina. También se ha relacionado con los niveles de prolactina. Conclusiones: a través de la presente revisión se ha podido constatar la relación del aumento de los triglicéridos en algunas de las patologías o alteraciones más frecuentes en los embarazos de riesgo, en las que se produce una elevación significativamente mayor que en los embarazos normales. Es en este contexto en el que el modelado biológico puede cobrar una relevancia especial, facilitando la creación de modelos y curvas de percentiles aplicables a la población, y que permitan un seguimiento de los cambios en la trigliceridemia, que acaben señalando aquellas situaciones que pasan a ser

  13. Impact of transjugular intrahepatic porto-systemic shunt on post liver transplantation outcomes: Study based on the United Network for Organ Sharing database

    PubMed Central

    Mumtaz, Khalid; Metwally, Sherif; Modi, Rohan M; Patel, Nishi; Tumin, Dmitry; Michaels, Anthony J; Hanje, James; El-Hinnawi, Ashraf; Hayes Jr, Don; Black, Sylvester M

    2017-01-01

    AIM To determine the impact of transjugular intrahepatic porto-systemic shunt (TIPS) on post liver transplantation (LT) outcomes. METHODS Utilizing the United Network for Organ Sharing (UNOS) database, we compared patients who underwent LT from 2002 to 2013 who had underwent TIPS to those without TIPS for the management of ascites while on the LT waitlist. The impact of TIPS on 30-d mortality, length of stay (LOS), and need for re-LT were studied. For evaluation of mean differences between baseline characteristics for patients with and without TIPS, we used unpaired t-tests for continuous measures and χ2 tests for categorical measures. We estimated the impact of TIPS on each of the outcome measures. Multivariate analyses were conducted on the study population to explore the effect of TIPS on 30-d mortality post-LT, need for re-LT and LOS. All covariates were included in logistic regression analysis. RESULTS We included adult patients (age ≥ 18 years) who underwent LT from May 2002 to September 2013. Only those undergoing TIPS after listing and before liver transplant were included in the TIPS group. We excluded patients with variceal bleeding within two weeks of listing for LT and those listed for acute liver failure or hepatocellular carcinoma. Of 114770 LT in the UNOS database, 32783 (28.5%) met inclusion criteria. Of these 1366 (4.2%) had TIPS between the time of listing and LT. We found that TIPS increased the days on waitlist (408 ± 553 d) as compared to those without TIPS (183 ± 330 d), P < 0.001. Multivariate analysis showed that TIPS had no effect on 30-d post LT mortality (OR = 1.26; 95%CI: 0.91-1.76) and re-LT (OR = 0.61; 95%CI: 0.36-1.05). Pre-transplant hepatic encephalopathy added 3.46 d (95%CI: 2.37-4.55, P < 0.001), followed by 2.16 d (95%CI: 0.92-3.38, P = 0.001) by TIPS to LOS. CONCLUSION TIPS did increase time on waitlist for LT. More importantly, TIPS was not associated with 30-d mortality and re-LT, but it did lengthen hospital LOS after

  14. Our experience in the management of obstructing colorectal cancer.

    PubMed

    Formisano, Vincenzo; Di Muria, Antonio; Connola, Giorgio; Cione, Gianpiero; Falco, Luigina; De Angelis, Carlo Paolo; Angrisani, Luigi

    2014-01-01

    Riportiamo la nostra esperienza retrospettiva sulle occlusioni intestinali da cancro colorettale. Negli ultimi 6 anni, abbiamo operato 238 pazienti affetti da cancro colorettale. I tumori complicati sono stati 136 (56%), 115 dei quali stenosanti (86%) e 19 perforati (14%). In 23 pazienti (20%) il tumore stenosante del colon era a destra ed in 92 (80%) a sinistra. Questi ultimi sono stati suddivisi retrospettivamente in 4 gruppi, in relazione all’intervento chirurgico eseguito: 18 (19%) colostomie decompressive; 32 (35%) procedure in due stadi: 25 operazioni di Hartmann e 7 colectomie totali con ileostomia terminale; 7 (8%) procedure in uno stadio, con ileostomia di protezione: 4 colectomie totali e 3 resezioni del colon con wash-out; 35 (38%) procedure in uno stadio con anastomosi primaria + wash-out o milking. I decessi sono stati 8/115, con un tasso di mortalità operatoria globale del 7%. Il tasso di fistola anastomotica è stato del 10%, riguardando 6/58 pazienti con anastomosi, 5 dei quali hanno richiesto un reintervento chirurgico. Complessivamente, circa 2/3 dei decessi perioperatori sono avvenuti per complicanze generali ed un terzo per deiscenza dell’anastomosi. L’occlusione intestinale da cancro colorettale è associata ad un’elevata mortalità operatoria ed una prognosi peggiore, in termini di recidiva e di sopravvivenza. La colostomia decompressiva può essere considerata come un’opzione valida solo nella malattia avanzata o nel paziente in condizioni generali scadute. La resezione anastomosi primaria rappresenta il gold-standard in pazienti selezionati con un basso rischio anestesiologico, sia sotto forma di resezione tipica con washout, sia come colectomia subtotale. Una colostomia o ileostomia temporanea di protezione può essere proposta per i pazienti con un rischio anestesiologico intermedio. Nei casi ad alto rischio o in avanzato stato occlusivo, oppure in presenza di simultanea perforazione del colon o di malattia metastatica o

  15. Invertebrate fauna associated with Torpedograss, Panicum repens (Cyperales: Poaceae), in Lake Okeechobee, Florida, and prospects for biological control

    SciTech Connect

    Cuda, J.P.; Dunford, J.C.; Leavengood, J.M. Jr.

    2007-03-15

    realizado como parte de un estudio de factibilidad para determinar si conota es una candidata apropiada para un programa de control biologico clasico. En general, especimenes de aproximadamente unos 4,000 artropodos y unos 400 nematodos fueron recolectados. Muestras recolectadas pasando una red sobre vegetacion mezclada, cortando la vegetacion y tomando centros del suelo fueron dominados por representantes de artropodos de los ordenes de Hemiptera, Hymenoptera, Diptera, y Acari. Nematodos en el genero Pratylenchus, que causan lesiones sobre tejido, fueron asociados regularmente con las raices de conota. Ninguno de los organismos recolectados eran especialistas sobre conota. Aunque el control biologico clasico de la conota es factible basado sobre la magnitud de la infestacion, las perdidas economicas, la resistencia hacia los metodos de control convencionales y el informe en la India de un posible enemigo natural especifico a esta planta, la posicion botanica de este pasto maleza requiere una evaluacion de riesgo economico formal antes de continuar con un programa de control biologico clasico. (author)

  16. [PSYCHOMETRIC PROPERTIES OF A SPANISH ADAPTATION OF THE WEIGHT BIAS INTERNALIZATION SCALE (WBIS)].

    PubMed

    Sarrías-Gómez, Susana; Baile, José Ignacio

    2015-10-01

    Introducción: la obesidad es uno de los problemas de salud más importantes en la actualidad a nivel internacional, y el estudio de los diferentes aspectos relacionados con ella se ha convertido en un objetivo prioritario. Uno de dichos aspectos es el análisis de la interiorización de prejuicios sobre la obesidad, especialmente su evaluación, para lo cual se han diseñado diferentes instrumentos, no disponibles para la población española. Objetivos: el objetivo de este estudio es la traducción y adaptación de la Escala de Interiorización de Prejuicios sobre Obesidad (WBIS), analizando sus características psicométricas. Métodos: cincuenta y nueve personas fueron evaluadas mediante una adaptación española del WBIS, el Inventario de Depresión de Beck (BDI) en versión breve, y el Cuestionario de Salud General de Goldberg (GHQ-28). Se exploró la consistencia interna, así como la validez concurrente y de constructo del instrumento adaptado. Resultados: el coeficiente alfa de Cronbach fue de .89, mientras que la validez concurrente evidenció correlaciones estadísticamente significativas con la puntuación global del GHQ-28 (r = .39, p < .02) y del BDI (r = .42, p < .001). La escala definitiva estaba compuesta por 11 ítems, que se agruparon en dos factores principales, que permitieron explicar significativamente el 65.03% de la varianza. Conclusiones: la versión adaptada al español del WBIS muestra adecuados valores psicométricos de fiabilidad y validez, por lo que podría ser una buena escala para la evaluación de la interiorización de los prejuicios sobre obesidad, lo que podría confirmarse en estudios más amplios.

  17. La implantacion del enfoque constructivista en el aula de ciencia: Estudio de caso multiple

    NASA Astrophysics Data System (ADS)

    Arroyo Betancourt, Luz I.

    participantes basado en lo que estas manifestaron en su practica didactica. Dos maestras coinciden en una vision constructivista social de la construccion del conocimiento, del aprendizaje y de los metodos didacticos. La otra manifesto una vision constructivista piagetiana en el aprendizaje, los metodos didacticos y en la construccion del conocimiento. Se espera que este trabajo, ademas de promover los estudios de caso sobre el enfoque constructivista de ensenanza en el contexto puertorriqueno, sirva para que los maestros, que estan transformando su enfoque educativo de uno tradicional a uno constructivista, tengan una vision mas clara de la implantacion de este enfoque. Se espera ademas que sirva para que el Departamento de Educacion y sus programas de adiestramiento y readiestramiento en servicio, asi como las universidades y sus programas de preparacion de maestros, tomen en cuenta los resultados y recomendaciones de este estudio al revisar sus programas.

  18. [Food intake, nutritional status and physical activity between elderly with and without chronic constipation. A comparative study].

    PubMed

    Vargas-García, Elisa Joan; Vargas-Salado, Enrique

    2013-01-01

    antecedentes: el estreñimiento es uno de los trastornos gastrointestinales más comunes en la población de edad avanzada porque con el paso de los años los factores implicados en su causa se modifican y repercuten en la ingestión de alimentos, el estado de nutrición y la actividad física. Objetivo: evaluar en el adulto mayor el efecto en el estreñimiento crónico del consumo de alimentos con alto contenido de fibra, el estado nutricio, y la actividad física. Material y métodos: estudio comparativo, prospectivo y transversal efectuado en 140 adultos mayores de la consulta externa de la Unidad de Medicina Familiar51 del Instituto Mexicano del Seguro Social en la ciudad de León, Guanajuato, durante el periodo del 4 mayo al 30 de octubre de 2009. Se valoró si padecían o no estreñimiento de acuerdo con los criterios de Roma III. Se valoró: peso,talla, circunferencia del brazo, pliegue cutáneo tricipital; se aplicó un cuestionario de actividad física validado, y se obtuvo el registro dietético de tres días (dos de entre semana y uno de sábado o domingo). Resultados: la ingestión promedio de fibra y agua no esultó estadísticamente diferente entre los grupos estudiados. Los pacientes con estreñimiento tuvieron dietas menos completas y variadas (p < 0.02; p < 0.03). El estado nutricio predominante en los adultos mayores de ambos grupos fue de sobrepeso (p= 0.49) pero el grupo sin estreñimiento tuvo niveles más altos de actividad física en comparación con los estreñidos (1664 vs 1049 METs, p= 0.004).Conclusiones: el menor nivel de actividad física, la monotonía en la dieta, y no incluir todos los grupos de alimentos son factores que se asocian con el estreñimiento en el adulto mayor. De acuerdo con los resultados de este estudio la menor ingestión de fibra no se relacionó con el estreñimiento.

  19. The corrected donor age for hepatitis C virus-infected liver transplant recipients.

    PubMed

    Dirchwolf, Melisa; Dodge, Jennifer L; Gralla, Jane; Bambha, Kiran M; Nydam, Trevor; Hung, Kenneth W; Rosen, Hugo R; Feng, Sandy; Terrault, Norah A; Biggins, Scott W

    2015-08-01

    Donor age has become the dominant donor factor used to predict graft failure (GF) after liver transplantation (LT) in hepatitis C virus (HCV) recipients. The purpose of this study was to develop and validate a model of corrected donor age (CDA) for HCV LT recipients that transforms the risk of other donor factors into the scale of donor age. We analyzed all first LT recipients with HCV in the United Network for Organ Sharing (UNOS) registry from January 1998 to December 2007 (development cohort, n = 14,538) and January 2008 to December 2011 (validation cohort, n = 7502) using Cox regression, excluding early GF (<90 days from LT). Accuracy in predicting 1 year GF (death or repeat LT) was assessed with the net reclassification index (NRI). In the development cohort, after controlling for pre-LT recipient factors and geotemporal trends (UNOS region, LT year), the following donor factors were independent predictors of GF, all P < 0.05: donor age (hazard ratio [HR], 1.02/year), donation after cardiac death (DCD; HR, 1.31), diabetes (HR, 1.23), height < 160 cm (HR, 1.13), aspartate aminotransferase (AST) ≥ 120 U/L (HR, 1.10), female (HR, 0.94), cold ischemia time (CIT; HR, 1.02/hour), and non-African American (non-AA) donor-African American (AA) recipient (HR, 1.65). Transforming these risk factors into the donor age scale yielded the following: DCD = +16 years; diabetes = +12 years; height < 160 cm = +7 years; AST ≥ 120 U/L = +5 years; female = -4 years; and CIT = +1 year/hour > 8 hours and -1 year/hour < 8 hours. There was a large effect of donor-recipient race combinations: +29 years for non-AA donor and an AA recipient but only +5 years for an AA donor and an AA recipient, and -2 years for an AA donor and a non-AA recipient. In a validation cohort, CDA better classified risk of 1-year GF versus actual age (NRI, 4.9%; P = 0.009) and versus the donor risk index (9.0%, P < 0.001). The CDA, compared

  20. The Corrected Donor Age for Hepatitis C virus Infected Liver Transplant Recipients

    PubMed Central

    Dirchwolf, Melisa; Dodge, Jennifer L.; Gralla, Jane; Bambha, Kiran M.; Nydam, Trevor; Hung, Kenneth W.; Rosen, Hugo R.; Feng, Sandy; Terrault, Norah A.; Biggins, Scott W.

    2016-01-01

    Donor age has become the dominant donor factor used to predict graft failure (GF) after liver transplantation (LT) in HCV recipients. AIM To develop and validate a model of Corrected Donor Age (CDA) for HCV LT recipients that transforms the risk of other donor factors into the scale of donor age. METHODS We analyzed all first LT recipients with HCV in the UNOS registry from 1/1998–12/2007 (development cohort, n=14,538) and 1/2008–12/2011 (validation cohort, n=7,502) using Cox regression, excluding early GF (<90 days from LT). Accuracy in predicting 1yr GF (death or Re-LT) was assessed with the net reclassification index (NRI). RESULTS In the development cohort, controlling for pre-LT recipient factors and geo-temporal trends (UNOS region, LT year), the following donor factors were independent predictors of GF (Hazard Ratio); all p<0.05; donor age (1.02/yr), circulatory death (DCD) (1.31), diabetes (1.23), height<160cm (1.13), AST>120 U/L (1.10), female (0.94), cold ischemia time (CIT) (1.02/hr), donor non-AA : recipient AA (1.65). Transforming these risk factors into the donor age scale yielded the following: DCD=+16yrs, diabetes=+12yrs, height<160cm=+7yrs, AST >120 U/L=+5yrs, female=−4yrs, CIT=+1yr/hr>8hrs and −1yr/hr<8 hrs. There was a large effect of donor-recipient race combinations; +29yrs for donor non-AA : recipient AA but only +5yrs for donor AA : recipient AA, and −2yrs for donor AA : recipient non-AA. In a validation cohort, CDA better classified risk of 1yr GF versus actual age (NRI 4.9%, p=0.009) and versus the donor risk index (9.0%, p<0.001). CONCLUSIONS The CDA, compared to actual donor age, provides an intuitive and superior estimation of graft quality for HCV-positive LT recipients since it incorporates additional factors that impact LT GF rates. PMID:26074140

  1. [Evaluation of two closed-system drug transfer device in the antineoplastic drug elaboration process].

    PubMed

    Gómez-Álvarez, Sandra; Porta-Oltra, Begoña; Hernandez-Griso, Marta; Pérez-Labaña, Francisca; Climente-Martí, Mónica

    2016-01-01

    Objetivo: evaluar el impacto del uso de dos sistemas cerrados sobre el proceso de preparación de quimioterapia parenteral, con respecto al sistema estándar, en términos de contaminación local y ambiental, y tiempos de preparación. Método: estudio observacional prospectivo. Se compararon dos proveedores distintos de sistemas cerrados, Icu Medical® y Care Fusion®, frente al sistema estándar de preparación de quimioterapia parenteral. Quince enfermeros del Servicio de Farmacia elaboraron cada uno de ellos 5 preparaciones, una siguiendo el procedimiento estándar y cuatro usando los sistemas cerrados. Para evaluar la aparición de contaminación se elaboró una solución de fluoresceína al 0,5%. Se evaluaron dos tipos de contaminación: local (en tres puntos: sistema acoplado a vial, jeringa y envase final) y ambiental (guantes y mesa de trabajo), obteniéndose el porcentaje de preparaciones contaminadas en cada uno de ellos. Se registró el tiempo empleado por cada enfermero en cada una de las preparaciones. Resultados: se elaboraron 75 preparaciones. Se produjo una reducción global de la contaminación local para los SC Icu Medical® y Care Fusion® del 24% y 74%, respectivamente. En el sistema cerrado Care Fusion® la contaminación local fue significativamente menor que en el sistema estándar en vial, jeringa y envase final; mientras que en el sistema cerrado Icu Medical® solo fue significativamente menor en la conexión al vial. Se produjo un incremento significativo del tiempo de preparación con la utilización de sistemas cerrados de los entre 23,4 y 30,5 segundos. Conclusiones: ambos sistemas cerrados han mostrado un beneficio con respecto a la utilización del sistema estándar. Sin embargo, se han visto incrementados significativamente los tiempos de preparación con ambos sistemas.

  2. Estudio teórico de la distribución catiónica en la capa octaédrica de silicatos laminares

    NASA Astrophysics Data System (ADS)

    Hernández-Laguna, A.

    Los silicatos laminares son unos minerales de gran extensión en la corteza de nuestro y otros planetas, y se ha detectado su presencia en masas de partículas de polvo interplanatario. Están formados por láminas estructuradas en una capa tetraedros de sílice y una de octaédros de oxihidroxido de aluminio. Según el número de capas y la disposición aparecen distintos minerales. Además, también pueden aparecer distintos minerales como consecuencia de la substitución isomórfica de cationes en la capas, en particular, Al(III) por Si en la capa tetraédrica y Fe(III) y/o Mg(II) por Al(III) en la octaédrica. Cuando el catión substituyente presenta un estado de oxidación más bajo que al que substituye genera carga negativa que tiene que neutralizarse con cationes que se disponen en el espacio interlaminar. En este trabajo vamos a estudiar, mediante distintos métodos computacionales, las distribuciones de dichos cationes de substitución en la capa octaédrica de silicatos laminares 2:1 (dos capas tetraédricas y en medio una octaédrica), en particular, en los minerales esmectitas e ilitas. En primer lugar, estudiaremos la distribución de dichos cationes en la capa octaédrica en un modelo de gas reticular por el método de Monte Carlo, minimizando el número de pares de cationes Al, Fe y Mg de nuestro modelo con respecto a los procedentes de resultados espectroscópicos de muestras de minerales. Posteriormente, y mediante un modelo de potenciales empíricos, estudiamos la energética de las distribuciones binarias en dichos minerales, generando unos potenciales de interacción intercambio a dos y tres cationes (extrapolables a cualquier filosilicato) que son la base para una investigación Monte Carlo-"simulated-annealing" en la que se encuentran las transiciones de fase y las estructuras ordenadas, dependiendo dichas estructuras y la temperatura de cambio de fase de la de la naturaleza y concentración de los cationes de substitución. También se han

  3. Modifiable environmental obesity risk factors among elementary school children in a Mexico-us border city.

    PubMed

    López-Barrón, Rita Gabriela; Jiménez-Cruz, Arturo; Bacardí-Gascón, Montserrat

    2015-05-01

    Antecedentes: El aumento de la prevalencia de sobrepeso (SP) y la obesidad (OB) en niños mexicanos, hace necesario la valoración de los factores de riesgo ambientales. Objetivo: Valorar si existe asociación entre la disponibilidad de alimentos en el entorno de los niños y el consume de alimentos con el puntaje Z de IMC y la circunferencia de cintura (CC). Métodos: Participaron en el estudio 684, 264 padres, 22 maestros, el personal de cafetería de las escuelas, y vendedores ambulantes. Se valoró el peso, la estatura la CC, de niños de quinto año de educación básica. Se aplicaron a los padres, niños y maestros un cuestionario de frecuencia de consumo de alimentos, uno de actividad física y uno de hábitos alimentarios. Un inventario de alimentos se aplicó a los padres, al personal de la cafetería de la escuela, a los vendedores y a las tiendas cercanas a las escuelas. Resultados: La media de edad de los niños fue 10.5 años. 28% de los niños tenían SP, 26% OB, y 25% obesidad abdominal (OA). Se observó una correlación positiva entre el consumo de alimentos densamente energéticos (ADE), frutas, y verduras con la disponibilidad en casa y con el consumo semanal. También se observó una correlación entre el consumo de refrescos y otras ADE. El factor que más contribuía al consumo de alimentos fue la disponibilidad en casa y en la escuela (R2 = 0.11, p = 0.0001). Se observó una asociación positiva entre el tiempo que los niños ven televisión con el de sus padres. Por cada hora de aumento (de 0 a 7) de ver televisión al día, los niños tenían más posibilidades de tener SP o OB (OR=1.22 95% CI 1.02-1.45, p=0.026). Conclusión: La disponibilidad de ADE, de frutas y verduras en o fuera de casa o de la escuela, además de las horas de ver televisión estuvieron positivamente asociadas con la obesidad.

  4. [Influence of body composition and acceptance of physical education classes on self-esteem of children aged 14-16 years from Alicante, Spain].

    PubMed

    Estévez, Manuel; Muros, José Joaquín; Torres, Beatriz; Pradas, Francisco; Zurita, Félix; Cepero, Mar

    2015-04-01

    Introducción: La autoestima parece ser un importante predictor de síntomas depresivos entre los jóvenes, y sobre todo en el género femenino. Algunos autores sugieren que la existencia de sobrepeso y/o obesidad en jóvenes se relaciona con una menor autoestima así como la participación deportiva se ha asociado con unos valores más altos de la misma. Objetivos: Analizar las relaciones existentes entre el índice de masa corporal, sexo, aceptación a las clases de Educación Física y autoestima en una muestra representativa de escolares de 3º y 4º de Educación Secundaria Obligatoria de la ciudad de Alicante. Métodos: El estudio se llevó a cabo sobre una muestra representativa compuesta por 1.150 alumnos escolarizados en la ciudad de Alicante. Se obtuvieron datos sociodemográficos, antropométricos, valores de autoestima y de aceptación por las clases de educación física. Resultados: Existe una correlación positiva entre la aceptación a las clases de educación física y el autoestima (r= ,319) y una correlación negativa entre esta y el sexo de los alumnos (r= -,289), siendo el grupo femenino el que muestra unas menores puntuaciones. Existe una correlación negativa entre el autoestima y los valores de índice de masa corporal (r= -,083), y el sexo (r= -,308), siendo el grupo femenino el que muestra unos valores menores de autoestima. Conclusiones: En vista de los resultados se hace necesario planificar actuaciones encaminadas a reforzar y aumentar la autoestima durante la adolescencia, centrándose en los grupos de riesgo formados por los jóvenes con sobrepeso/obesidad y sobre por el grupo de las chicas.

  5. Revision curricular a partir de un analisis comparativo de las discrepancias en los curriculos de una escuela de optometria en Puerto Rico con las competencias requeridas para las agencias de revalida y acreditacion 2004

    NASA Astrophysics Data System (ADS)

    Rivera Pacheco, Andres

    El proposito de esta investigacion, un estudio cualitativo de caso, fue comparar y contrastar el curriculo vigente de la Escuela de Optometria de la UIAPR con las competencias y estandares requeridos por las agencias de acreditacion y de revalida. Con este proposito, decidimos realizar una revision y un analisis de documentos: el prontuario de cada uno de los cursos de los curriculos implantados en el 1993 y en el 2001; las competencias y estandares establecidos por las agencias de revalida y de acreditacion; y las estadisticas en las que se analiza el porcentaje de estudiantes que aprueban cada una de las partes de los examenes de revalida entre el 1998 al 2003. Se realizaron entrevistas dirigidas para dar apoyo y complementar la revision y el analisis de estos documentos. Los participantes de las entrevistas fueron tres estudiantes de la clase de optometria del 2004 (ultima clase del curriculo del 1993); tres estudiantes de la clase de optometria del 2005 (primera clase graduanda del curriculo vigente) y tres profesores y/o directores de los Departamentos de Ciencias Basicas, Ciencias Clinicas y Cuidado al Paciente. Esta investigacion se enmarco en el modelo de evaluacion curricular de discrepancia de Malcolm Provus y en el modelo de desarrollo basado en competencias. Uno de los hallazgos mas importantes del estudio es que los cambios que se implantaron al curriculo del 2001 no han logrado que los estudiantes mejoren su ejecucion en los examenes de revalida. Por otro lado, se encontro que el curriculo vigente atiende completamente los estandares de la practica de Optometria, pero no las competencias. Esta informacion fue validada mediante el uso de una tabla de cotejo para el analisis de los cursos y de la informacion obtenida de las entrevistas. El estudio determina y concluye que existen discrepancias entre los prontuarios de los cursos del curriculo y las competencias requeridas por la agencia de revalida. Segundo, que el Departamento de Ciencias Basicas es el

  6. [In Process Citation].

    PubMed

    Muros, José Joaquín; Cofre-Bolados, Cristian; Zurita-Ortega, Félix; Castro-Sánchez, Manuel; Linares-Manrique, Marta; Chacón-Cuberos, Ramón

    2016-03-25

    Introducción: la sociedad actual está experimentando reducciones significativas en los niveles de actividad física, y estos niveles de sedentarismo están asociados a un aumento de la obesidad. Objetivo: describir y analizar las relaciones entre composición corporal, realización de actividad física y condición física, además de describir los índices de sobrepeso/obesidad de una muestra de escolares de la provincia de Santiago (Chile). Material y métodos: se diseñó un estudio transversal con una muestra representativa de 515 alumnos (10,6 ± 0,5). Se determinaron diferentes índices antropométricos (IMC y porcentaje graso), así como la actividad física y la condición física (capacidad aeróbica y fuerza muscular máxima en tren superior e inferior). Resultados: alrededor del 55% de la muestra estudiada presentó problemas de sobrepeso/obesidad. Los valores de volumen de oxígeno máximo (VO 2 máx) y fuerza del tren superior fueron estadísticamente superiores en el grupo de los niños que en el de las niñas. Los alumnos clasificados como obesos presentaron unos niveles superiores de porcentaje graso, así como unos niveles inferiores de actividad física y de condición física que el grupo con normopeso. Se encontró una correlación negativa entre las puntuaciones del PAQ-C (Physical Activity Questionnaire for Older Children) y los parámetros antropométricos, así como entre los parámetros antropométricos y los valores obtenidos en todas las pruebas de condición física. Conclusión: ante los alarmantes niveles de sobrepeso y obesidad infantil detectados en Santiago parece de importante relevancia crear planes de intervención centrados en la mejora de la condición física; los grupos con problemas de sobrepeso y obesidad y los grupos de sexo femeninos donde se debería hacer una mayor incidencia.

  7. Evaluation of factors affecting plate waste of inpatients in different healthcare settings.

    PubMed

    Valero Díaz, Antonio; Caracuel García, Angel

    2013-01-01

    Introducción/objetivos: La satisfacción de los pacientes con el servicio de comidas continúa siendo uno de los principales retos dirigidos a la modernización de los sistemas de distribución de alimentos. En el presente estudio se evaluó el impacto del tipo de hospital, horario, categoría de alimento y tipo de menú sobre el desecho de comida producido en diferentes recintos hospitalarios espAÑOles. Métodos: El desecho de alimentos se midió a través de una escala semi-cuantitativa con 5 niveles para evaluar la aceptabilidad del alimento («nada en plato» «¼ en plato» «mitad en plato» «¾ en plato» y «todo en plato»). El estudio se llevó a cabo en dos periodos de tres meses cada uno durante 2010 y 2011. Una persona entrenada se encargó del pesaje de platos, los cuales se clasificaron en 726 servicios pertenecientes a 11 menús diferentes. En total, se sirvieron 31.392 platos a 7.868 pacientes. Como prueba estadística se utilizó un test estadístico no paramétrico de Kruskal-Wallis (p < 0,05). Resultados: Los menús se consumieron de forma satisfactoria ya que más del 50% de los platos se clasificaron dentro de la categoría «nada en plato». Con respecto a las categorías de alimento, un 26,78% de los platos servidos se correspondieron con sopas y purés, mientras que los platos de pasta, arroz y alimentos listos para el consumo fueron distribuidos en un 4-5% de los servicios. Los postres fueron los platos más consumidos, mientras que los vegetales hervidos fueron menos aceptados. Otros factores como el tipo de hospital influyeron sobre el desecho de alimentos (p < 0,05) aunque el horario de servicio de comidas no (p > 0,05). Conclusión: La inspección visual del desecho de alimentos puede ser útil a la hora de optimizar el tipo y calidad de los menús servidos. El tipo de menú y la categoría de alimento podrían tener una gran influencia sobre la aceptabilidad de los platos por los pacientes.

  8. Development of decision support system for oil spill management in the Mediterranean Sea

    NASA Astrophysics Data System (ADS)

    Liubartseva, Svitlana; Coppini, Giovanni; Pinardi, Nadia; De Dominicis, Michela; Marra, Palmalisa; Lecci, Rita; Turrisi, Giuseppe; Creti, Sergio; Martinelli, Sara; Agostini, Paola; Palermo, Francesco

    2016-04-01

    developed as a part of TESSA Project portfolio providing the unified access to others services. Thus, SEACONDITIONS (http://www.sea-conditions.com) performs visualization and on-line delivery of forecast of surface currents, sea surface temperature, significant wave height and direction, wave period and direction; air temperature, surface pressure, precipitation, cloud coverage, wind speed, etc. Apart from the basin scale visualization SEACONDITIONS supports the zooming capability. User feedback reports from fishermen, port authorities including Coast Guard, offshore companies, aquatic and coastal tourism managers, and academia have been collected and used for the system improvements. User-friendliness of GUI, tooltips, an opportunity to vary the advanced parameters, efficiency of the visualization tool, and a help section were appreciated in these reports. In accordance with the users' requirements, a to-do list is composed for the further development of WITOIL. This work was performed in the framework of the TESSA Project (Sviluppo di TEcnologie per la Situational Sea Awareness) supported by PON (Ricerca & Competitività 2007-2013) cofunded by UE (Fondo Europeo di sviluppo regionale), MIUR (Ministero Italiano dell'Università e della Ricerca), and MSE (Ministero dello Sviluppo Economico). References De Dominicis, M., Pinardi, N., Zodiatis, G., and Lardner, R., 2013. MEDSLIK-II, a Lagrangian marine surface oil spill model for short term forecasting - Part 1: Theory. Geosci. Model Dev. 6, 1851-1869.

  9. Lower Aptian Sequence at Madoz (SE Spain) in Relation to Cretaceous Anoxic Event-1a (OAE- 1a)

    NASA Astrophysics Data System (ADS)

    Gaona-Narvaez, T.; Maurrasse, F. J.; Lamolda, M. A.

    2008-05-01

    levels of fossiliferous marls (bioclasts < 10%), calcareous shales and pyritic black shales (bioclasts < 5%) that contain non-rudist bivalves, algae, echinoids and scarce benthic foraminifers. Microfacies of the prominent black shale bed, which occurs about between 14.5 and 16.3 m within subunit 2b, show a matrix composed essentially of clays (> 50%), framboidal pyrite (1-2.5%), and organic matter (5-7 %). Benthic foraminifers and bioturbation are totally absent within this interval, but there are occasional algal fragments, and very rare ostracods. In contrast to the adjacent levels, the absence of benthic foraminifers lack of bioturbation, and increased OM suggest that the black shale level clearly implies development of anoxic to dysoxic conditions within that interval. Based on the presence of D. desahyesi in subunit 1 its relationship to OAE- 1a remains ambiguous, and its occurrence may be related to a possible regional event due to the complexity of the paleogeography of that region during its tectonic development in the Early Cretaceous. Duvernois, Ch., Floquet, M., Humbel, B. 1972. La Sierra d'Aralar (Pyrénées basques Espagnoles): stratigraphie, structure. Thèse de Doctorat de Troisième cycle, Université de Dijon, 240 pp. Cherchi, A., Schroeder, R. 1998. Aptian and Albian large foraminifera at Madoz. 24° Coloquio Europeo de Micropaleontología. Libro Guía. Lamolda, M.A. Ed. 71-73p.

  10. Effect of the use of probiotics in the treatment of children with atopic dermatitis; a literature review.

    PubMed

    da Costa Baptista, Ingrid Pillar; Accioly, Elizabeth; de Carvalho Padilha, Patricia

    2013-01-01

    Introducción: La dermatitis atópica (DA) es una enfermedad que afecta principalmente a la población pediátrica, la participación de crónica y repetitiva inflamatoria de la piel la evolución manifestations.Its se conoce como marcha atópica, que se caracteriza por la aparición de alergias respiratorias y la alimentación. Objetivo: Realizar una revisión sistemática de la literatura del estado de la técnica científica sobre el efecto de los probióticos en el tratamiento de niños con DA. Métodos: Se realizaron búsquedas en Medline y Lilacs a través del PubMed portales (http://www.ncbi.nlm.nih. gov/PubMed/) y SciELO (http://www.scielo.br). Había una selección de las publicaciones disponibles en el perío do comprendido entre 2001 y 2011, con la dermatitis atópica palabras clave y los probióticos (en inglés y en portugués). Resultados: Después de aplicar los criterios de inclusión y exclusión, se seleccionaron 12 estudios caso-control que se realizaron en cuatro países europeos y Australia. La calidad metodológica de los estudios se evaluó de acuerdo a las recomendaciones STROBE. Evaluación de un acuerdo entre los investigadores en la clasificación de la calidad de los artículos mostraron una excelente concordancia (k = 1,00, IC del 95%) con un total de 9 trabajos en el nivel B. La mayoría de los estudios (75%) indica un efecto beneficioso de los probióticos en DA, incluida la protección contra las infecciones, la mejora de la respuesta inmune, la reducción de la inflamación y cambios en la flora intestinal, la mejora de la condición clínica de la EA. Los estudios restantes no mostraron efectos beneficiosos de acuerdo a los resultados de interés. Conclusión: La mayoría de los estudios en la literatura científica, en el período estudiado, mostró evidencia de beneficios en el uso de probióticos para controlar las manifestaciones clínicas de la DA, sin embargo el costo/ beneficio del tratamiento siempre debe ser evaluada.

  11. [Clinical usefulness of Beta2microglobulin in patients with Primary Sjögren Syndrome].

    PubMed

    Rozzatti, M S; Fontaneto, E; Pedano, V; Racca, A; Pelosso, M; Gobbi, C; Alba, P; Demarchi, M

    2015-01-01

    Las manifestaciones extranglandulares y desórdenes linfoproliferativos son complicaciones que pueden comprometer el curso benigno del Síndrome de Sjögren Primario (SSp). Existen escasos marcadores serológicos con comprobada utilidad para predecirlas y/o diagnosticarlas. Objetivos: Evaluar la utilidad de Beta2microglobulina (β2m) en pacientes con SSp y correlacionarlos con parámetros séricos predictivos de manifestaciones extraglandulares y enfermedades linfoproliferativas (Factor Reumatoideo (FR), Inmunoglobulinas séricas (Igs), C3 y C4). Materiales y métodos: Se realizó una revisión retrospectiva de historias clínicas de pacientes que consultaron en la Unidad de Reumatología del Hospital Córdoba desde enero de 2010 a octubre 2013 y que fueron derivados a la Sección de Inmunología del Servicio de Bioquímica para la determinación de pruebas de laboratorio . Los pacientes fueron clasificados de acuerdo a los Criterios Diagnósticos de patologías autoinmunes en pacientes con diagnóstico de SSp según el Grupo Consenso Americano-Europeo, otras enfermedades autoinmunes y los controles sanos. Se estudiaron las IgG, IgA e IgM, factores del complemento C3, C4 séricos y FR por inmunoturbidimetría y β2m por ELISA. Resultados: 19 pacientes con SSp (Grupo SSp), 28 pacientes con patologías autoinmunes distintas a SSp (Grupo PAD), y 24 controles sanos (Grupo C) fueron incluidos en este estudio. Se evidenció un aumento estadísticamente significativo de β2m en el Grupo SSp respecto al Grupo C (6.19mg/dl vs 2.53mg/dl p<0.001) y respecto al Grupo PAD (6.19 vs 4.38mg/dl p<0.01). En el grupo SSp se observó aumento estadísticamente significativo de IgA (p<0.05) y G (p<0.001) y disminución de C4 (p<0.05) respecto al Grupo C. No se observó correlación entre β2m y el resto de parámetros séricos determinados. Conclusión: β2m permitió discriminar pacientes con SSp de aquellos con otras patologías autoinmunes y sujetos sanos. El aumento de β2m en

  12. Chemotherapy near the end of life; assessment of the clinical practise in onco-hematological in adult patients.

    PubMed

    Taberner Bonastre, Pilar; Taberner Bonastre, María Teresa; Soler Company, Enrique; Pérez-Serrano Lainosa, María Dolores

    2016-01-01

    Objetivo: garantizar una buena calidad de vida en la última fase de los pacientes onco-hematológicos debería ser nuestro principal objetivo; a pesar de ello, disponemos de pocos datos a nivel europeo y los estudios publicados son contradictorios. No obstante, la mayoría coinciden en que administrar quimioterapia en la etapa final de la vida impacta de forma negativa en la calidad de vida del paciente. El objetivo principal del estudio es analizar los indicadores de no agresividad del tratamiento en pacientes onco-hematológicos. Como objetivo secundario, realizar un estudio descriptivo de las variables clínicas de los pacientes a los que se les administra quimioterapia en la fase final de la vida y los esquemas más utilizados. Método: se realizó un estudio observacional retrospectivo en un hospital de tercer nivel. Se incluyeron todos los pacientes oncológicos y hematológicos que recibieron quimioterapia (oral o intravenosa) entre enero y diciembre de 2013, a los que se les administró la última quimioterapia en los 90 días previos al fallecimiento. Resultados: se analizaron 823 pacientes que recibieron tratamiento entre enero y diciembre de 2013. De ellos, 106 (13%) cumplían los criterios de inclusión. Un 14,1% (n = 93) de los pacientes oncológicos y un 8,4% (n = 13) de los hematológicos que habían recibido quimioterapia durante el último año de vida lo seguían haciendo en los últimos tres meses. Un 21,7% (n = 23) de los pacientes recibieron quimioterapia en las dos últimas semanas, 41,5% (n = 44) en los últimos 30 días y 78,3% (n = 83) en los últimos dos meses de vida. El 67,9% (n = 72) de los pacientes ingresaron en el hospital durante los últimos tres meses de vida, el 47,2% (n = 50) lo hicieron durante el último mes, el 33% (n = 35) durante las dos últimas semanas y el 10,4% (n = 11) durante los últimos tres días de vida. El 25,5% (n = 27) de los pacientes ingresaron en más de una ocasión durante los 90 días previos al

  13. PRESENT; PREScription of Enteral Nutrition in pediaTric Crohn's disease in Spain.

    PubMed

    Navas-López, Victor Manuel; Martín-de-Carpi, Javier; Segarra, Oscar; García-Burriel, José Ignacio; Díaz-Martín, Juan José; Rodríguez, Alejandro; Medina, Enrique; Juste, Mercedes

    2014-03-01

    : La frecuencia de empleo de la NEE en pacientes con EC es similar a la de otros cuestionarios europeos. Se precisan herramientas y recursos que faciliten la aceptación por parte del paciente y de su familia así como disponer de más tiempo a dedicar para instaurar esta modalidad terapéutica. Dada la disparidad de criterios para la indicación de la EEN, sería útil disponer de guías de práctica clínica ampliamente aceptadas o protocolos que facilitan la decisión de utilizarla.

  14. Mars Express radar collects first surface data

    NASA Astrophysics Data System (ADS)

    2005-08-01

    the middle of August, when the night-time portion of the observations will have almost ended. After that, observation priority will be given to other Mars Express instruments that are best suited to operating in daytime, such as the HRSC camera and Omega mapping spectrometer. However, Marsis will continue its surface and ionospheric investigations in daytime, with ionospheric sounding being reserved for more than 20% of all Mars Express orbits, under all possible Sun illumination conditions. In December, the Mars Express orbit pericentre will enter night-time again. By then, the pericentre will have moved closer to the south pole, allowing Marsis to carry out optimal probing of the subsurface once again, this time in the southern hemisphere. Note to editors The first commissioning phase was given over to testing the Marsis electronics and software and the two 20m-long antennas (dipole). The second commissioning phase, lasting about ten days, will be spent calibrating the 7m ‘monopole’ antenna. This antenna is to be used in conjunction with the Marsis dipole to correct any surface roughness effects caused by the radio waves emitted by the dipole and reflected by an irregular surface. The monopole will find its best use during investigations of areas where surface roughness is greater. The Marsis instrument was developed within the framework of a Memorandum of Understanding between the Italian Space Agency (ASI) and NASA. It was developed by Alenia Spazio under ASI management and the scientific supervision of University of Rome ‘La Sapienza’, in partnership with the Jet Propulsion Laboratory (JPL) and the University of Iowa. JPL provided the antenna manufactured by Astro Aerospace. It is the first instrument designed to actually look below the surface of Mars. Its major goals are to characterise the subsurface layers of sediments and possibly detect underground water or ice, conduct large-scale altimetry mapping and provide data on the planet’s ionosphere. For

  15. Hurry along please, for the Mars Express

    NASA Astrophysics Data System (ADS)

    1998-06-01

    reservoirs of frozen or liquid water beneath the martian surface would greatly improve the practical possibilities for human ventures to the Red Planet. It would shed light on the chemical history of Mars and on whether conditions were ever right for life to appear there. And the chief motive for all of ESA's deep-space missions is to understand the Earth better. The fate of water on Mars is one of the salient questions about why the planet is very different from the Earth, although it is a near neighbour in the Solar System. A team led by the University of Rome will contribute the Subsurface Sounding Radar/Altimeter on Mars Express. This instrument will map the distribution of ice and liquid water with radar pulses penetrating the martian surface. It will chart the topography of the surface too, and the observed effects of the martian ionosphere on the radar waves will show how the solar wind influences the state of the atmosphere. The link between the solar wind and the fate of water on Mars is the concern of the Swedish Institute of Space Physics in Kiruna, and the ASPERA experiment lead. Mars may have lost most of its water by solar effects destroying water vapour in the atmosphere. By sensing neutral and charged atomic particles in the planet's vicinity, ASPERA will shed light on any such mechanism for dehydrating Mars. The escape of gas from Mars will also be seen by SPICAM UV, which is the special responsibility of the Service d'Aéronomie at Verrières near Paris. The instrument will examine the martian atmosphere by ultraviolet light. A major aim of SPICAM UV is to clarify the threat that solar ultraviolet rays and oxidizing chemicals (ozone and hydroxyl) may have posed to any life incipient on Mars. Comprehensive observations of the martian atmosphere, and of its gases, dust and weather, will come from PFS, an infrared instrument provided by a team led by the Istituto di Fisica dello Spazio Interplanetario in Frascati. It measures the intensities of infrared rays

  16. Bordetella avium causes induction of apoptosis and nitric oxide synthase in turkey tracheal explant cultures.

    PubMed

    Miyamoto, David M; Ruff, Kristin; Beach, Nathan M; Stockwell, Stephanie B; Dorsey-Oresto, Angella; Masters, Isaac; Temple, Louise M

    2011-09-01

    Bordetellosis is an upper respiratory disease of turkeys caused by Bordetella avium in which the bacteria attach specifically to ciliated respiratory epithelial cells. Little is known about the mechanisms of pathogenesis of this disease, which has a negative impact in the commercial turkey industry. In this study, we produced a novel explant organ culture system that was able to successfully reproduce pathogenesis of B. avium in vitro, using tracheal tissue derived from 26 day-old turkey embryos. Treatment of the explants with whole cells of B. avium virulent strain 197N and culture supernatant, but not lipopolysaccharide (LPS) or tracheal cytotoxin (TCT), specifically induced apoptosis in ciliated cells, as shown by annexin V and TUNEL staining. LPS and TCT are known virulence factors of Bordetella pertussis, the causative agent of whooping cough. Treatment with whole cells of B. avium and LPS specifically induced NO response in ciliated cells, shown by uNOS staining and diaphorase activity. The explant system is being used as a model to elucidate specific molecules responsible for the symptoms of bordetellosis.

  17. [Auditing as a tool for ongoing improvement in the Stroke Care Plan of the Region of Aragon].

    PubMed

    Gimenez-Munoz, A; Palacin-Larroy, M; Bestue, M; Marta-Moreno, J

    2016-07-16

    Introduccion. El Plan de Atencion al Ictus de Aragon (PAIA) se creo en 2008 en el marco de la Estrategia Nacional en Ictus del Sistema Nacional de Salud. La monitorizacion de la atencion hospitalaria al ictus mediante auditorias periodicas se definio como una de sus lineas de trabajo. Objetivo. Determinar la calidad del proceso asistencial hospitalario prestado al paciente con ictus en Aragon mediante el uso de indicadores de calidad. Materiales y metodos. Se realizaron tres audits (en los años 2008, 2010 y 2012) siguiendo la misma metodologia, basada en la revision retrospectiva de una muestra representativa de ingresos por ictus en cada uno de los hospitales generales del Servicio Aragones de Salud. Se recogio informacion sobre 48 indicadores seleccionados segun su evidencia cientifica o relevancia clinica. Resultados. Se estudiaron 1.011 casos (331 en el primer audit, y 340 en el segundo y en el tercero). Treinta y un indicadores presentaron una mejoria significativa (entre ellos destacan los indicadores de calidad de la historia clinica, de evaluacion neurologica, las medidas preventivas iniciales y, con especial relevancia, la realizacion de test de deglucion), dos sufrieron empeoramiento (relacionados con el tratamiento rehabilitador) y 15 no registraron variaciones significativas. Conclusiones. La implantacion del PAIA ha supuesto una mejoria notable en la mayoria de los indicadores de calidad evaluados, reflejo de una mejora continua en la atencion hospitalaria del ictus. La generalizacion progresiva de la atencion especializada y la creacion de las areas de ictus son algunos de los factores determinantes.

  18. [Empathy and moral judgements in the elderly population].

    PubMed

    Ortega, Helga; Cacho, Raúl; López-Goñi, José J; Tirapu-Ustárroz, Javier

    2014-08-01

    Introduccion. La cognicion social se refiere a los procesos mentales que operan en situaciones de interaccion social y facilitan el ajuste y el funcionamiento en tales escenarios. Objetivo. Estudiar la respuesta empatica en dos grupos de personas mayores y su relacion con la inteligencia emocional y el juicio moral. Sujetos y metodos. Participaron 60 sujetos divididos en dos grupos de 30 cada uno, que cumplimentaron una bateria de pruebas: Trait Meta-Mood Scale-24, cuestionario disejecutivo, indice de reactividad interpersonal (IRI) y dilemas morales. Resultados. En la dimension de toma de perspectiva del IRI, el grupo de edad avanzada puntuo significativamente menos que el grupo de mediana edad (U = 279; p < 0,05). En el resto de variables no se encontraron diferencias estadisticamente significativas. Conclusiones. Los resultados muestran la ausencia de un deficit generalizado en la cognicion social en la muestra de ancianos evaluada. Sin embargo, se aprecian diferencias en funcion de la edad en la empatia y en el rendimiento ejecutivo: con el paso del tiempo tiene lugar un deterioro progresivo en la teoria de la mente y un declive en la capacidad empatica general. Con respecto a la inteligencia emocional, los ancianos evaluados manifiestan una adecuada percepcion y comprension de sus emociones, aunque informan de una peor capacidad para manejar y regular sus afectos.

  19. Preparation of scanning tunneling microscopy tips using pulsed alternating current etching

    SciTech Connect

    Valencia, Victor A.; Thaker, Avesh A.; Derouin, Jonathan; Valencia, Damian N.; Farber, Rachael G.; Gebel, Dana A.; Killelea, Daniel R.

    2015-03-15

    An electrochemical method using pulsed alternating current etching (PACE) to produce atomically sharp scanning tunneling microscopy (STM) tips is presented. An Arduino Uno microcontroller was used to control the number and duration of the alternating current (AC) pulses, allowing for ready optimization of the procedures for both Pt:Ir and W tips using a single apparatus. W tips prepared using constant and pulsed AC power were compared. Tips fashioned using PACE were sharper than those etched with continuous AC power alone. Pt:Ir tips were prepared with an initial coarse etching stage using continuous AC power followed by fine etching using PACE. The number and potential of the finishing AC pulses was varied and scanning electron microscope imaging was used to compare the results. Finally, tip quality using the optimized procedures was verified by UHV-STM imaging. With PACE, at least 70% of the W tips and 80% of the Pt:Ir tips were of sufficiently high quality to obtain atomically resolved images of HOPG or Ni(111)

  20. [Atypical ganglioglioma with BRAF V600E mutation: a case report and review of the literature].

    PubMed

    Martinez-Ricarte, F; Martinez-Saez, E; Cicuendez, M; Cordero, E; Auger, C; Toledo, M; Radoi, A; Sahuquillo, J

    2016-05-16

    Introduccion. Los gangliogliomas son tumores raros que afectan a pacientes jovenes, aparecen predominantemente en el lobulo temporal y suelen comenzar con crisis epilepticas. Histologicamente corresponden a un grado I de malignidad, con una forma anaplasica catalogada como de grado III en la clasificacion de la Organizacion Mundial de la Salud (OMS) de 2007. Sin embargo, existen tumores que no cumplen criterios de uno u otro grado y que presentan claras diferencias pronosticas respecto a los de grado I. Estos tumores corresponderian a gangliogliomas atipicos (grado II), no contemplados en la citada clasificacion. Desde el punto de vista molecular, la alteracion mas conocida en los gangliogliomas es la mutacion de BRAF V600E, que confiere peor pronostico a la lesion. La posibilidad de utilizar tratamientos dirigidos a esta proteina mutada otorga una especial relevancia a esta alteracion. Caso clinico. Varon de 21 años, intervenido de un ganglioglioma en dos ocasiones, en el que el examen neuropatologico objetivo caracteristicas histologicas compatibles con un grado de malignidad intermedio (grado II) con mutacion positiva a BRAF. Conclusiones. El caso presentado, junto con los descritos previamente en la bibliografia, reabre las controversias sobre la definicion de los gangliogliomas en la clasificacion de la OMS de 2007, y apoya el hecho de que la proxima clasificacion de la OMS deberia volver a incluir los gangliogliomas atipicos (grado II) e integrar posibles mutaciones geneticas y alteraciones moleculares.

  1. [Otoneurologic and cardiovascular abnormalities associated to carbon monoxide poisoning in occupational exposed workers].

    PubMed

    Vargas-Martínez, Alma; Reyna-López, Víctor; Rodríguez-Ortega, Francisco

    2014-01-01

    INTRODUCCIÓN: aun cuando la Ley Federal del Trabajo incluye la intoxicación por monóxido de carbono, su registro es escaso en el ámbito laboral. El objetivo de esta investigación fue determinar la relación de trastornos otoneurológicos y cardiovasculares con la intoxicación por monóxido de carbono en el ambiente de trabajo, para la adecuada fundamentación de su diagnóstico como enfermedad de trabajo. MÉTODOS: estudio transversal y analítico de un grupo de asaderos que utilizaban leña y carbón para cocinar pollo, comparados con un grupo control (n = 54). La investigación se realizó de abril a noviembre de 2012, con trabajadores de uno u otro sexo, entre los 18 y 74 años de edad; no se excluyó a quienes fumaban, pero no se incluyó a quienes manifestaron antecedente de cardiopatía isquémica Se obtuvieron niveles de carboxihemoglobina en aire espirado, audiometría tonal y electrocardiograma de 12 derivaciones.

  2. How can we utilize livers from advanced aged donors for liver transplantation for hepatitis C?

    PubMed

    Uemura, Tadahiro; Nikkel, Lucas E; Hollenbeak, Christopher S; Ramprasad, Varun; Schaefer, Eric; Kadry, Zakiyah

    2012-06-01

    Advanced age donors have inferior outcomes of liver transplantation for Hepatitis C (HCV). Aged donors grafts may be transplanted into young or low model for end stage liver disease (MELD) patients in order to offset the effect of donor age. However, it is not well understood how to utilize liver grafts from advanced aged donors for HCV patients. Using the UNOS database, we retrospectively studied 7508 HCV patients who underwent primary liver transplantation. Risk factors for graft failure and graft survival using advanced aged grafts (donor age ≥ 60 years) were analyzed by Cox hazards models, donor risk index (DRI) and organ patient index (OPI). Recipient's age did not affect on graft survival regardless of donor age. Advanced aged grafts had significant inferior survival compared to younger aged grafts regardless of MELD score (P < 0.0001). Risk factors of HCV patients receiving advanced aged grafts included donation after cardiac death (DCD, HR: 1.69) and recent hospitalization (HR: 1.43). Advanced aged grafts showed significant difference in graft survival of HCV patients with stratification of DRI and OPI. In conclusion, there was no offsetting effect by use of advanced aged grafts into younger or low MELD patients. Advanced aged grafts, especially DCD, should be judiciously used for HCV patients with low MELD score.

  3. [Intra and inter-observer reliability of electroencephalogram interpretation in pediatric patients with neurological alterations].

    PubMed

    Ramírez-Campos, Jorge; Núñez-Velázquez, Marco; Cárdenas-Rojo, Noé; Sevilla-Castillo, Ricardo A; Palacios-Saucedo, Gerardo C

    2014-01-01

    Introducción: interpretar un electroencefalograma (EEG) es un proceso subjetivo que involucra diversos obstáculos para llegar a un acuerdo. Si la concordancia interobservador de un proceso diagnóstico es pobre, ese proceso no puede considerarse certero. El objetivo de este estudio fue valorar la concordancia intra e interobservador de la lectura del EEG en pacientes pediátricos. Métodos: se incluyeron 108 EEG de niños menores de 16 años, los cuales fueron interpretados por dos neurólogos pediatras. Para evaluar la concordancia intraobservador, el observador número uno realizó tres lecturas en tres tiempos distintos; la tercera lectura fue ciega para el diagnóstico. La concordancia interobservador fue evaluada por medio de una lectura ciega para el diagnóstico de los dos observadores. Se midió el índice kappa. Resultados: la concordancia intraobservador para diferenciar si el EEG era normal o anormal fue substancial en las tres lecturas (kappa 0.66-0.78). La concordancia más alta correspondió a las lecturas con conocimiento del diagnóstico. La concordancia interobservador para evaluar si el EEG era anormal o normal fue leve (k = 0.12). Conclusiones: el EEG es un estudio subjetivo que depende del interpretador. Es necesario establecer un consenso para uniformar los criterios para su interpretación y así aumentar la concordancia.

  4. Long-term outcomes of children after solid organ transplantation.

    PubMed

    Kim, Jon Jin; Marks, Stephen D

    2014-01-01

    Solid organ transplantation has transformed the lives of many children and adults by providing treatment for patients with organ failure who would have otherwise succumbed to their disease. The first successful transplant in 1954 was a kidney transplant between identical twins, which circumvented the problem of rejection from MHC incompatibility. Further progress in solid organ transplantation was enabled by the discovery of immunosuppressive agents such as corticosteroids and azathioprine in the 1950s and ciclosporin in 1970. Today, solid organ transplantation is a conventional treatment with improved patient and allograft survival rates. However, the challenge that lies ahead is to extend allograft survival time while simultaneously reducing the side effects of immunosuppression. This is particularly important for children who have irreversible organ failure and may require multiple transplants. Pediatric transplant teams also need to improve patient quality of life at a time of physical, emotional and psychosocial development. This review will elaborate on the long-term outcomes of children after kidney, liver, heart, lung and intestinal transplantation. As mortality rates after transplantation have declined, there has emerged an increased focus on reducing longer-term morbidity with improved outcomes in optimizing cardiovascular risk, renal impairment, growth and quality of life. Data were obtained from a review of the literature and particularly from national registries and databases such as the North American Pediatric Renal Trials and Collaborative Studies for the kidney, SPLIT for liver, International Society for Heart and Lung Transplantation and UNOS for intestinal transplantation.

  5. A factor converting viable but nonculturable Vibrio cholerae to a culturable state in eukaryotic cells is a human catalase.

    PubMed

    Senoh, Mitsutoshi; Hamabata, Takashi; Takeda, Yoshifumi

    2015-08-01

    In our previous work, we demonstrated that viable but nonculturable (VBNC) Vibrio cholerae O1 and O139 were converted to culturable by coculture with eukaryotic cells. Furthermore, we isolated a factor converting VBNC V. cholerae to culturable (FCVC) from a eukaryotic cell line, HT-29. In this study, we purified FCVC by successive column chromatographies comprising UNO Q-6 anion exchange, Bio-Scale CHT2-1 hydroxyapatite, and Superdex 200 10/300 GL. Homogeneity of the purified FCVC was demonstrated by SDS-PAGE. Nano-LC MS/MS analysis showed that the purified FCVC was a human catalase. An experiment of RNAi knockdown of catalase mRNA from HT-29 cells and treatment of the purified FCVC with a catalase inhibitor, 3-amino-1,2,4-triazole confirmed that the FCVC was a catalase. A possible role of the catalase in converting a VBNC V. cholerae to a culturable state in the human intestine is discussed.

  6. [CONTENT OF TRANS FATTY ACIDS IN FOOD PRODUCTS IN SPAIN].

    PubMed

    Robledo de Dios, Teresa; Dal Re Saavedra, M Ángeles; Villar Villalba, Carmen; Pérez-Farinós, Napoleón

    2015-09-01

    Introducción: los ácidos grasos trans están asociados con problemas de salud, como enfermedad coronaria o diabetes. Objetivos: conocer la cantidad de ácidos grasos trans en los alimentos en España, y el porcentaje que representan con respecto al total de los ácidos grasos. Métodos: se estudió el contenido en ácidos grasos de 443 alimentos adquiridos en España en el año 2010, y clasificados en grupos. Determinación analítica de grasas en los productos mediante cromatografía de gases. Se calcularon estimadores de tendencia central y dispersión de la cantidad de ácidos grasos trans en cada grupo (g de ácidos grasos trans/100 g de producto). Se calculó el porcentaje de ácidos grasos trans con respecto a la grasa total en cada grupo. Resultados: los productos se agruparon en 42 grupos. En todos, salvo uno, la mediana de ácidos grasos trans fue inferior a 0,55 g/100 g de producto. El 83 % de los grupos tienen menos del 2 % de ácidos grasos trans con respecto a las grasas totales, y el 71 %, menos del 1 %. Discusión: el contenido de AGT en los alimentos en España es bajo y no representa actualmente un problema de salud pública.

  7. [Nutrition and child development II; a comparison of physical development in two school children groups with different income level (Rev Clin Esp 1944; 12:155-164) ].

    PubMed

    Grande Covián, F; Rof Carballo, J; Jiménez García, F

    2014-09-01

    El estudio comparativo de dos grupos de niños en edad escolar y de nivel económico diferente demuestra que los que pertenecen a un suburbio madrileño económicamente pobre sufren un retraso en el crecimiento que se caracteriza por una talla y un peso inferiores en relación con la edad. El retraso del peso corporal es proporcionalmente mayor al de la talla. Cuando se calcula según WETZEL la edad que teóricamente corresponde al desarrollo corporal de estos niños se observa un retraso de 2,94 años para una edad término medio de 10,14 años. El retraso global del desarrollo somático representa por tanto el 29 por 100 de la edad cronológica media. Este retraso en el desarrollo debe atribuirse principalmente a causas dietéticas y no solo a carencias específicas, sino sobre todo a insuficiencia cuantitativa en la dieta consumida. Desde el punto de vista cualitativo es probablemente la falta de leche en la dieta uno de los más importantes factores en la génesis de este trastorno del desarrollo.

  8. [Functional magnetic resonance imaging: a critical analysis of its technical, statistical and theoretical implications in human neuroscience].

    PubMed

    González-García, C; Tudela, P; Ruz, M

    2014-04-01

    Introduccion. La utilizacion de la resonancia magnetica funcional (RMf) ha supuesto una gran revolucion en el avance de las neurociencias. Pese a ello, ha sido objeto de numerosas criticas. Objetivo. Estudiar las criticas mas generalizadas hacia la RMf, de manera que investigadores que se inicien en su uso conozcan los diferentes elementos que hay que tener en cuenta para un acercamiento adecuado a esta tecnica. Desarrollo. Su gran atractivo y utilidad a la hora de observar la actividad cerebral han hecho de la RMf una tecnica cuyo uso ha crecido exponencialmente desde la ultima decada del siglo XX. Paralelamente, la critica hacia ella ha sido especialmente feroz. La mayoria de este escepticismo puede clasificarse en aspectos concernientes a la tecnica y fisiologia, el analisis de los datos y su interpretacion teorica. Mediante este trabajo se revisaran los principales argumentos en cada uno de estos tres apartados, asi como su adecuacion. Adicionalmente, se pretende que este trabajo pueda servir de referencia para investigadores noveles a la hora de identificar elementos que se deban tener en cuenta en su acercamiento a la RMf. Conclusion. Pese a que la RMf constituye actualmente una de las opciones mas interesantes para observar el cerebro, es necesario un alto grado de control y conocimiento para su utilizacion. Aun asi, gran parte de las criticas no se sostiene hoy en dia.

  9. Characterization of a novel protease from Aeribacillus pallidus strain VP3 with potential biotechnological interest.

    PubMed

    Mechri, Sondes; Ben Elhoul Berrouina, Mouna; Omrane Benmrad, Maroua; Zaraî Jaouadi, Nadia; Rekik, Hatem; Moujehed, Emna; Chebbi, Alif; Sayadi, Sami; Chamkha, Mohamed; Bejar, Samir; Jaouadi, Bassem

    2017-01-01

    The present study investigates the purification and physico-chemical characterization of an extracellular protease from the Aeribacillus pallidus strain VP3 previously isolated from a geothermal oil-field (Sfax, Tunisia). The maximum protease activity recorded after 22h of incubation at 45°C was 3000U/ml. Pure enzyme, designated as SPVP, was obtained after ammonium sulfate fractionation (40-60%)-dialysis followed by heat-treatment (70°C for 30min) and UNO Q-6 FPLC anion-exchange chromatography. The purified enzyme is a monomer of molecular mass about 29kDa. The sequence of the 25 NH2-terminal residues of SPVP showed a high homology with those of Bacillus proteases. The almost complete inhibition by PMSF and DIFP confirmed that SPVP is a member of serine protease family. Its optima of pH and temperature were pH 10 and 60°C, respectively. Its half-life times at 70 and 80°C were 8 and 4h, respectively. Its catalytic efficiency was higher than those of SAPCG, Alcalase Ultra 2.5L, and Thermolysin type X. SPVP exhibited excellent stability to detergents and wash performance analysis revealed that it could remove blood-stains effectively and high resistance against organic solvents. These properties make SPVP a potential candidate for applications in detergent formulations and non-aqueous peptide biocatalysis.

  10. [Knowledge and common sense of nurses on the health's inequities: an exploratory study.

    PubMed

    Cotichelli, Giordano; Di Meo, Giorgia; Giampieri, Paolo

    2016-01-01

    Introduzione. I dati statistici per il 2015 parlano di un peggioramento generale delle condizioni di vita e di salute della popolazione in Italia. Le possibili ricadute chiamano l’infermiere ad un coinvolgimento in tema di disuguaglianze nella salute. Lo studio è stato realizzato con lo scopo di valutare quanto gli infermieri conoscono e percepiscono la correlazione fra le condizioni di salute della popolazione e le iniquità di sistema. Metodo. E’ stato condotto uno studio esplorativo attraverso un aggiornamento bibliografico rispetto a precedenti lavori e la somministrazione di questionari a campioni di convenienza di professionisti e studenti di infermieristica e valutazione dei risultati secondo la prospettiva del mixed method. Risultati. La bibliografia infermieristica presente sul piano quantitativo è molto limitata. Il questionario fornisce risposte utili alla valutazione della percezione delle disuguaglianze nella salute in termini di equità orizzontale e verticale. Conclusioni. La conoscenza delle disuguaglianze nella salute non può essere al margine dei lavori scientifici e della stessa letteratura professionale. E’ necessario ridurre il divario fra gli aspetti valoriali propri della professione, che riverberano nella percezione delle iniquità esistenti, e l’assunzione piena del sapere correlato ai determinanti socio-economici della salute e della malattia.

  11. [An update on the pharmacological treatment of attention deficit hyperactivity disorder: lisdexamphetamine and extended-release guanfacine].

    PubMed

    Martin Fernandez-Mayoralas, D; Fernandez-Perrone, A L; Munoz-Jareno, N; Fernandez-Jaen, A

    2017-03-13

    Introduccion. El trastorno por deficit de atencion/hiperactividad (TDAH) es uno de los trastornos del neurodesarrollo mas frecuentes en la poblacion infantil. Su tratamiento es complejo y debe incluir medidas psicoeducativas, ambientales y farmacologicas. En los ultimos años, las principales novedades respecto a su tratamiento farmacologico son la aparicion de la lisdexanfetamina y la guanfacina de liberacion retardada. Objetivo. El aumento del numero de farmacos disponibles para el tratamiento del TDAH permite tratar y cubrir situaciones clinicas muy diversas. El proposito de la presente revision es realizar un analisis de la bibliografia sobre ambos farmacos. Desarrollo. Se establecen los puntos fuertes de ambos tratamientos, atendiendo especialmente a su mecanismo de accion, a su tolerabilidad y a su eficacia. Conclusiones. La guanfacina de liberacion retardada permite tratar situaciones escasamente cubiertas con los estimulantes, tales como los niños con irritabilidad y tics, con un perfil significativo de moderada eficacia y una buena tolerabilidad y seguridad. La aparicion de la lisdexanfetamina ha supuesto un cambio muy importante porque, segun la bibliografia, se trataria de un farmaco completo y efectivo, desde el punto de vista clinico, para mejorar los sintomas del TDAH. Ademas, posee un buen perfil de seguridad.

  12. [Translation and validation of the Egen Klassifikation scale for the Spanish population: functional assessment for non-ambulatory individuals with Duchenne's muscular dystrophy and spinal muscular atrophy].

    PubMed

    Fagoaga, Joaquín; Girabent-Farrés, Montserrat; Bagur-Calafat, Caritat; Febrer, Anna; Steffensen, Birgit F

    2013-06-01

    Introduccion. La escala Egen Klassifikation (EK) es un cuestionario que valora la capacidad funcional de personas con distrofia muscular de Duchenne y atrofia muscular espinal no ambulantes y que estan en silla de ruedas. Objetivo. Traducir y validar la EK para la poblacion espanola, como instrumento de medicion de la capacidad funcional en dichos pacientes. Pacientes y metodos. Se realiza, en primer lugar, una traduccion-retrotraduccion de la EK en la poblacion espanola y, posteriormente, se practica el estudio de fiabilidad de la version traducida al espanol de dicha escala. Se llevan a cabo tres mediciones a 30 pacientes con edades comprendidas entre 4 y 67 anos. Dos de estas mediciones se realizan por el mismo observador, y la tercera, por un segundo observador, para evaluar la concordancia intra e interobservador. Resultados. Los valores obtenidos referidos a la puntuacion total de los items de la escala, suma EK, reflejan un indice de fiabilidad del 0,995. Tambien muestran una fiabilidad superior a 0,86 en cada uno de los items, tanto en las observaciones intra como interobservador. Conclusiones. La version espanola de la EK es un instrumento valido y fiable para la poblacion espanola, como herramienta de medicion de la capacidad funcional en pacientes con distrofia muscular de Duchenne y atrofia muscular espinal no ambulantes y que estan en silla de ruedas.

  13. [Smoking and multiple sclerosis].

    PubMed

    Arruti, Maialen; Castillo-Triviño, Tamara; Egüés, Nerea; Olascoaga, Javier

    2015-02-16

    Introduccion. La esclerosis multiple (EM) es una enfermedad autoinmune de etiologia compleja, hoy por hoy desconocida, en la que factores geneticos y ambientales determinan la susceptibilidad. En los ultimos años, el efecto del tabaco ha sido uno de los factores ambientales que ha emergido en la EM, y se ha asociado tanto a un aumento de la susceptibilidad como a un aumento de la progresion. Objetivo. Revisar la evidencia actual sobre el papel del tabaco en la EM. Desarrollo. Se incluye una actualizacion de los estudios publicados que han analizado distintos aspectos del tabaco en la EM: vias patogenicas implicadas, asociacion del tabaco y riesgo de EM, interaccion con otros factores de riesgo y efecto del tabaco en el curso de la enfermedad. Conclusiones. Los estudios observacionales demuestran que el tabaquismo incrementa de forma significativa el riesgo de EM (odds ratio ~ 1,5) y es un factor de riesgo independiente. Sin embargo, la EM es una enfermedad compleja y el aumento de riesgo por el tabaco puede diferir en funcion de la interaccion con otros factores geneticos y ambientales. El papel del tabaco como factor de progresion es mas controvertido, con resultados contradictorios y estudios de gran variabilidad, lo que dificulta establecer una conclusion firme. Los mecanismos por los que el tabaquismo modifica el riesgo y posiblemente la progresion de la enfermedad no son aun conocidos.

  14. How I manage the adult potential organ donor: donation after cardiac death (part 2).

    PubMed

    Frontera, Jennifer A

    2010-02-01

    To address the gap between organs available for transplant and the number of patients on the transplant waiting list, the Joint Commission on the Accreditation of Healthcare Organizations, Institute of Medicine, United Network for Organ Sharing and the federal government have recommended the increased used of donation after cardiac death (DCD) (JCAHOnline http://www.jointcommission.org/Library/JCAHOnline/jo_06.06.htm ; UNOS, Highlights of the June Board Meeting, 2006). DCD is defined as organ donation once death is declared after irreversible cessation of circulatory and respiratory functions, as opposed to brain death (donation after neurological death). Though DCD is one of the fastest growing categories of organ donors, it comprises only 8% of all deceased donors (Steinbrook in N Engl J Med 357:209-213, 2007). Prior to 1968, when the Ad Hoc Committee of Harvard Medical School proposed a neurological definition of death based on brain-death criteria, organs from deceased donors came from patients who had suffered cardio-pulmonary demise (IOM, Non-heart-beating organ transplantation: practice and protocols, 2000). Early transplantation from DCD donors met with limited success and most transplant surgeons turned to brain-dead donors. Consequently, DCD fell out of vogue and, until recently, has not been the focus of transplant initiatives.

  15. New "all-in-one" device for mesh plug hernioplasty: the Trabucco repair.

    PubMed

    Gossetti, Francesco; Massa, Salvatore; Abbonante, Francesco; Calabria, Michele; Ceci, Francesca; Viarengo, Maria Antonietta; Manzi, Emy; D'Amore, Linda; Negro, Paolo

    2015-01-01

    Sebbene la tecnica Mesh Plug rappresenti una procedura di indubbia efficacia nel trattamento dell’ernia inguinale, tuttora permangono dubbi in relazione alla storia naturale del plug. In particolare, il plug può andare incontro a coartazione (shrinkage) con formazione di un “meshoma” responsabile di una sintomatologia dolorosa cronica. Più raramente, il plug può migrare e provocare erosione delle strutture anatomiche circostanti. Nel passato sono stati proposti alcuni devices per cercare di risolvere il problema della migrazione; nessuno di questi, tuttavia, ha raggiunto la popolarità dei plug conici o a forma di fiore. Il presente lavoro riporta i risultati di uno studio pilota condotto con l’impiego di un nuovo device tridimensionale, il NeT Plug & Patch. I risultati dopo 12 mesi di follow-up, hanno dimostrato una ridotta incidenza di dolore postoperatorio e cronico, senza rischio di migrazione. Inoltre è stata registrata una compliance soddisfacente sia dei pazienti che degli operatori. La protesi NeT Plug & Patch ha dimostrato di poter realizzare un’ernioplastica semplice ed efficace per la riparazione dell’ernia inguinale.

  16. Expanding the donor pool: regional variation in pediatric organ donation rates.

    PubMed

    Godown, Justin; McKane, Meghann; Wujcik, Kari; Mettler, Bret A; Dodd, Debra A

    2016-12-01

    There are limited published data on pediatric organ donation rates. The aim of this study was to describe the trends in pediatric organ donation over time and to assess the regional variation in pediatric deceased organ donation. OPTN data were utilized to assess the trends in pediatric organ donation over time. The number of deceased pediatric organ donors was indexed using regional mortality data obtained from the National Center for Health Statistics and compared across UNOS regions and two different eras. The number of pediatric deceased organ donors has declined in the recent era, largely driven by fewer adolescent donors. For all age groups, there is significant regional variation in organ donation rates, with identifiable high- and low-performing regions. Expansion of the donor pool may be possible by optimizing organ donation in regions demonstrating lower recruitment of pediatric donors. Using the region with the highest donation rate for each age group as the gold standard, we estimate a potential 24% increase in the number of donors if all regions performed comparably, equating to 215 new pediatric donors annually.

  17. El Proyecto Gémini: informe actualizado y técnica de observación

    NASA Astrophysics Data System (ADS)

    Sahade, J.; Lapasset, E.; Levato, H.

    Se describirá la situación actual en lo que se refiere al desarrollo del Proyecto Gémini en cuanto a su estructura, faz constructiva y programación general. Se informará sobre los planes a desarrollar en el tiempo de verificación científica y puesta a punto del instrumental, a partir de la primera imagen que se obtenga con el telescopio Gemini Norte. Se presentará, además, el plan operativo para observar con los telescopios Gemini tal cual está concebido hasta la fecha, describiéndose el proceso desde el mismo momento en que un investigador decide presentar una propuesta para observar con uno de los telescopios, hasta el archivo y derechos de propiedad sobre los datos. Se decribe también el ``soft" denominado Observing Tool (OT) que es clave en la planificación científica de Gemini y que puede ser utilizado ``off-line" en cualquier PC con un entorno windows.

  18. Deformations along the Caribbean - South American Plate Boundary From Nine Years Repeated GPS Observations in the CASA Project

    NASA Astrophysics Data System (ADS)

    Drewes, H.; Kaniuth, K.; Stuber, K.; Tremel, H.; Hernandez, J. N.; Hoyer, M.

    2002-05-01

    The first GPS observations along the Caribbean - South American plate boundary were carried out within the Central and South American Geodynamics Project (CASA UNO) in 1988. The precision of the results was quite poor due to the imperfect operation of the GPS system at that time. Since 1993 regular re-measurements of more than 20 stations in the eastern part of the network along the Bocono - El Pilar fault system in Venezuela have been performed. The paper presents the continuous deformations derived from the 1993, 1996, 1999 and 2002 complete network observations and some additional partial measurements. The long-term deformations in the order of one to two centimeters per year are now significantly confirmed and may be interpreted in the context of regional plate tectonics and geodynamics. The co-seismic displacements during the Cariaco (Sucre) 1997 earthquake are analyzed separately using detailed GPS observations in 1997. They are discussed as well as the local post-seismic deformations from 1997 to 2002.

  19. Comprehensive quality evaluation of Chishao by HPLC.

    PubMed

    Zaiyou, Jian; Wenquan, Wang; Guifang, Xu; Li, Meng; Junling, Hou

    2013-01-01

    Objetivo: El propósito de este artículo es la evaluación cualitativa extensa de Chishao. Métodos: En el experimento de este trabajo, se establecen los espectros de identificación de Chishao en todas las localizaciones mediante RP-HPLC y el método del análisis de componentes principales con las áreas pico de RPHPLC. Resultados: La calidad de Chishao en el norte de China o del procedente de Paeonia lactiflora es mejor que la de otras localizaciones o procedente de P. obovata, P. mairei y P. anomala. Los resultados son congruentes con la impresión tradicional de la calidad de esta planta. Estos resultados indican que el análisis de los componentes principales (ACP) puede utilizarse como método eficaz y económico para evaluar la calidad de Chishao y podría aplicarse a otras plantas medicinales chinas. Conclusiones: Dada la complicada base de la eficacia de la Medicina tradicional china (MTC), un método como el ACP para diversos componentes químicos parece ser más adecuado para la evaluación de la calidad de la MTC en comparación con la determinación de un único o unos pocos agentes químicos.

  20. [Diffuse superficial siderosis of the central nervous system: four case reports and review of the literature].

    PubMed

    Calvo, Marta; de Miguel, Cristina; Pinel, Ana; Ortega, José M; Aladro, Yolanda

    2014-10-16

    Introduccion. La siderosis superficial difusa del sistema nervioso central (SNC) es una rara condicion debida a depositos de hemosiderina en las capas subpiales del cerebro y la medula espinal. La fuente de sangrado cronico o recurrente en el espacio subaracnoideo se detecta solo en un 50% de los casos. Los sintomas mas caracteristicos son ataxia cerebelosa e hipoacusia neurosensorial. Las secuencias eco de gradiente potenciadas en T2 de resonancia magnetica constituyen el metodo diagnostico de eleccion. Casos clinicos. Presentamos cuatro pacientes con siderosis superficial difusa del SNC relacionada con angiopatia amiloide, anticoagulacion oral, schwannoma del VIII par craneal y sin fuente de sangrado conocida en un caso. Dos pacientes desarrollaron ataxia cerebelosa; tres de ellos, episodios recurrentes de alteracion focal neurologica; uno, demencia; y el cuarto es un hallazgo radiologico. No se objetivo progresion clinica durante el seguimiento (2-11 años) en tres de ellos. El paciente con angiopatia amiloide evoluciono a demencia. Conclusiones. Los episodios recurrentes de alteracion focal neurologica son los sintomas mas frecuentes en nuestros casos de siderosis superficial difusa del SNC. La evolucion natural de esta condicion no se conoce bien y puede constituir un hallazgo radiologico.

  1. [Combined treatment with antiepileptic drugs. Andalusian Epilepsy Guide 2015].

    PubMed

    Sánchez-Álvarez, Juan C; Ramos-Lizana, Julio; Machado-Casas, Irene S; Serrano-Castro, Pedro J; Martínez-Antón, Jacinto L; Ruiz-Giménez, Jesús

    2015-04-16

    Objetivo. Elaborar unas recomendaciones basadas en evidencias cientificas y en consenso de los autores y revisores, que aborden las cuestiones basicas acerca de la combinacion de farmacos antiepilepticos. Desarrollo. Un comite de 11 expertos pertenecientes a la Sociedad Andaluza de Epilepsia (SAdE), constituido por siete neurologos, tres neuropediatras y un neurologo-neurofisiologo, todos con especial competencia en epilepsia, promovieron la realizacion de una revision bibliografica exhaustiva entre 55 expertos en epilepsia pertenecientes a la SAdE, en busca de evidencias disponibles relacionadas con temas diagnosticos o terapeuticos en epilepsia. La guia se estructuro en 35 capitulos. Uno de los capitulos abordo la combinacion de farmacos antiepilepticos en el tratamiento de la epilepsia. Basandose en 77 citas bibliograficas y en la opinion consensuada de autores y revisores, se confecciono una serie de recomendaciones de facil aplicacion. Conclusiones. La combinacion de farmacos antiepilepticos en los pacientes con epilepsia cuyas crisis no estan controladas con un solo farmaco puede conseguir en numerosas ocasiones que entren en remision. Existe una serie de factores relacionados con el tipo de epilepsia y caracteristicas del paciente y con los farmacos antiepilepticos que se van a utilizar en combinacion que pueden favorecer el exito terapeutico. Se debe evitar en lo posible el sobretratamiento con la combinacion de farmacos antiepilepticos. Los resultados de esta revision proveen unas recomendaciones sobre el tratamiento combinado con farmacos antiepilepticos, basadas en evidencias cientificas y en el consenso de los autores, utiles, sencillas y aplicables en los diferentes niveles asistenciales.

  2. [Spanish validation of the Iowa Rating Scale for Personality Change (IRSPC) for the appraisal of changes in personality in patients with acquired brain injury].

    PubMed

    Guallart-Balet, María; Jiménez-Cortés, Marta P; Tuquet-Calvo, Helena; Pelegrín-Valero, Carmelo; Olivera-Pueyo, Javier; Benabarre-Ciria, Sergio; Tirapu-Ustárroz, Javier

    2015-01-01

    Introduccion. La Iowa Rating Scale for Personality Change (IRSPC) presenta una serie de caracteristicas (enfasis en las funciones motivacionales y emocionales, evaluacion de las funciones ejecutivas 'cognitivas' en la vida cotidiana, estimacion de la personalidad premorbida, valoracion de la fiabilidad del informador) que hacen muy interesante su utilizacion tanto en la clinica como en la investigacion. Objetivo. Validar en castellano la IRSPC para la evaluacion de los 'cambios de personalidad' secundarios a las lesiones cerebrales de la corteza prefrontal en general y del area ventromedial en particular. Pacientes y metodos. Tras el proceso de traduccion y adaptacion de la guia de la escala al castellano, se realizo un estudio de validacion con 31 pacientes con daño cerebral traumatico y se obtuvieron unos resultados de fiabilidad muy adecuados. Resultados. Los resultados obtenidos al medir la consistencia interna de la IRSPC y los coeficientes de fiabilidad interobservadores y test-retest apoyan dicha afirmacion. La validez del instrumento es confirmada por la validez concurrente (comparandolo con el inventario neuropsiquiatrico) y la validez de constructo (comparando las puntuaciones de los pacientes antes y despues del traumatismo). Conclusiones. La IRSPC es un instrumento fiable y valido para la exploracion clinica, en el contexto de una evaluacion integral de los sintomas derivados de las enfermedades neurologicas en general, y en particular de aquellas en las que se encuentra involucrada la corteza prefrontal ventromedial.

  3. [Disorders of executive functions. Diagnosis and treatment].

    PubMed

    Delgado-Mejía, Iván D; Etchepareborda, Máximo C

    2013-09-06

    Introduccion. Los diferentes aportes de la literatura cientifica ratifican, desde hace un par de decadas, a la corteza prefrontal como base neurobiologica de las funciones ejecutivas. En la actualidad, tanto los protocolos de evaluacion para la realizacion del diagnostico como la estructuracion de los planes de tratamiento y estimulacion neurocognitiva deben hacer la lectura de cada uno de los sindromes prefrontales (dorsolateral, medial o del cingulo anterior, y orbitofrontal) implicados en la etiopatogenia de los diferentes trastornos del neurodesarrollo y del adulto en los que se ven afectadas las funciones ejecutivas. Objetivos. Exponer los ultimos avances sobre diagnostico y tratamiento de las funciones ejecutivas y resaltar la importancia de identificar y comprender en la fase diagnostica y en la rehabilitacion neurocognitiva los tres sindromes de disfuncion prefrontal. Desarrollo. Se realiza una revision bibliografica sobre los ultimos avances neurocientificos alrededor de las bases neurobiologicas, neuropsicologicas, diagnostico y tratamiento de las funciones ejecutivas. Conclusion. Cada dia la comunidad neurocientifica ratifica la importancia de identificar y comprender en la etapa diagnostica los circuitos cerebrales, especificamente los sindromes de disfuncion prefrontal implicados en los deficits neuropsicologicos de los diferentes trastornos del neurodesarrollo y del adulto para poder establecer protocolos eficaces de estimulacion neurocognitiva.

  4. Dinámica de planetas extrasolares resonantes

    NASA Astrophysics Data System (ADS)

    Beauge, C.

    Actualmente se han detectado 117 planetas alrededor de estrellas de Secuencia Principal, incluyendo 12 sistemas planetarios, cada uno con dos o tres miembros. De estos últimos, ocho poseen planetas en órbitas próximas y sus perturbaciones gravitacionales se convierten en un factor fundamental para la estabilidad orbital del sistema. Todos se encuentran en configuraciones resonantes, desde la conmensurabilidad de movimientos 2/1 de Gliese 876, hasta la resonancia secular de Ups And. En esta presentación analizamos varios aspectos de la dinámica resonante de los planetas extrasolares, incluyendo la existencia de soluciones de equilibrio, construcción de modelos analógicos y métodos para la determinación de masas individuales. También discutimos por qué las resonancias son tan frecuentes en estos sistemas, comparado con nuestro propio Sistema Solar. Por último, intentamos relacionar estos modelos con la hipótesis de migración planetaria, buscando límites en su extensión y en los posibles mecanismos que le dieron origen.

  5. Feasibility Studies of Vortex Flow Impact On the Proliferation of Algae in Hydrogen Production for Fuel Cell Applications

    NASA Astrophysics Data System (ADS)

    Miskon, Azizi; A/L Thanakodi, Suresh; Shiema Moh Nazar, Nazatul; Kit Chong, Marcus Wai; Sobri Takriff, Mohd; Fakir Kamarudin, Kamrul; Aziz Norzali, Abdul; Nooraya Mohd Tawil, Siti

    2016-11-01

    The instability of crude oil price in global market as well as the sensitivity towards green energy increases, more research works being carried out to find alternative energy replacing the depleting of fossil fuels. Photobiological hydrogen production system using algae is one of the promising alternative energy source. However, the yield of hydrogen utilizing the current photobioreactor (PBR) is still low for commercial application due to restricted light penetration into the deeper regions of the reactor. Therefore, this paper studies the feasibility of vortex flow impact utilizing magnetic stirring in hydrogen production for fuel cell applications. For comparison of results, a magnetic stirrer is placed under a PBR of algae to stir the algae to obtain an even distribution of sunlight to the algae while the controlled PBR of algae kept in static. The produced hydrogen level was measured using hydrogen sensor circuit and the data collected were communicated to laptop using Arduino Uno. The results showed more cell counts and hydrogen produced in the PBR under the influence of magnetic stirring compared to static PBR by an average of 8 percent in 4 days.

  6. Cerebral networks of sustained attention and working memory: a functional magnetic resonance imaging study based on the Continuous Performance Test.

    PubMed

    Bartés-Serrallonga, M; Adan, A; Solé-Casals, J; Caldú, X; Falcón, C; Pérez-Pàmies, M; Bargalló, N; Serra-Grabulosa, J M

    2014-04-01

    Introduccion. Uno de los paradigmas mas utilizados en el estudio de la atencion es el Continuous Performance Test (CPT). La version de pares identicos (CPT-IP) se ha utilizado ampliamente para evaluar los deficits de atencion en los trastornos del neurodesarrollo, neurologicos y psiquiatricos. Sin embargo, la localizacion de la activacion cerebral de las redes atencionales varia significativamente segun el diseño de resonancia magnetica funcional (RMf) usado. Objetivo. Diseñar una tarea para evaluar la atencion sostenida y la memoria de trabajo mediante RMf para proporcionar datos de investigacion relacionados con la localizacion y el papel de estas funciones. Sujetos y metodos. El estudio conto con la participacion de 40 estudiantes, todos ellos diestros (50%, mujeres; rango: 18-25 años). La tarea de CPT-IP se diseño como una tarea de bloques, en la que se combinaban los periodos CPT-IP con los de reposo. Resultados. La tarea de CPT-IP utilizada activa una red formada por regiones frontales, parietales y occipitales, y estas se relacionan con funciones ejecutivas y atencionales. Conclusiones. La tarea de CPT-IP utilizada en nuestro trabajo proporciona datos normativos en adultos sanos para el estudio del sustrato neural de la atencion sostenida y la memoria de trabajo. Estos datos podrian ser utiles para evaluar trastornos que cursan con deficits en memoria de trabajo y en atencion sostenida.

  7. Isolated intestinal transplants vs. liver-intestinal transplants in adult patients in the United States: 22 yr of OPTN data.

    PubMed

    Desai, Chirag S; Gruessner, Angelika C; Khan, Khalid M; Fishbein, Thomas M; Jie, Tun; Rodriguez Rilo, Horacio L; Gruessner, Rainer W G

    2012-01-01

    We examined the outcomes of adult intestinal transplants (ITx); isolated ITx vs. liver-intestinal transplants (L-ITx) were compared using the UNOS database (1987-2009). Of 759 ITx transplants in 687 patients, 463 (61%) were isolated and 296 (39%) were L-ITx. Patient survival for primary isolated ITx at one, three, and five yr was 84%, 66.7%, and 54.2%; and primary L-ITx was, 67%, 53.3%, and 46% (p = 0.0005). Primary isolated ITx graft survival at one, three, and five yr was 80.7%, 57.6%, 42.8%; primary L-ITx was 64.1%, 51%, 44.1% (p = 0.0003 at one, three yr, Wilcoxon test). For retransplants (n = 72), patient and graft survival for isolated ITx (n = 41) at five yr was 40% in era 1 (1987-2000) and 16% in era 2 (p = 0.47); for retransplanted L-ITx (n = 31), it improved from 14% to 64% in era 2 (p = 0.01). Cox regression: creatinine >1.3 mg/dL and pre-transplant hospitalization were negative predictors for outcome of both; bilirubin >1.3 mg/dL was a negative predictor for isolated ITx and donor age >40 yr for L-ITx. Isolated ITx should be considered prior to liver disease for adults with intestinal failure; L-ITx is preferable for retransplantation.

  8. The Conference Proceedings of the 2003 Air Transport Research Society (ATRS) World Conference, Volume 5

    NASA Technical Reports Server (NTRS)

    Bowen, Brent (Editor); Gudmundsson, Sveinn (Editor); Oum, Tae (Editor)

    2003-01-01

    The UNO Aviation Institute Monograph Series began in 1994 as a key component of the education outreach and information transfer missions of the Aviation Institute and the NASA Nebraska Space Grant & EPSCoR Programs. The series is an outlet for aviation materials to be indexed and disseminated through an efficient medium. Publications are welcome in all aspects of aviation. Publication formats may include, but are not limited to, conference proceedings, bibliographies, research reports, manuals, technical reports, and other documents that should be archived and indexed for future reference by the aviation and world wide communities. The Conference proceedings of the 2003 Air Transport Research Society (ATRS) world conference, volume 5 is presented. The topics include: 1) The Temporal Configuration of Airline Networks in Europe; 2) Determination and Applications of Environmental Costs at Different Sized Airports-Aircraft Noise and Engine Emissions; 3) Cost Effective Measures to Reduce CO2 Emissions in the Air Freight Sector; 4) An Assessment of the Sustainability of Air Transport System: Quantification of Indicators; 5) Regulation, Competition and Network Evolution in Aviation; 6) Regulation in the Air: Price and Frequency Cap; 7) Industry Consolidation and Future Airline Network Structures in Europe; 8) Application of Core Theory to the U.S. Airline Industry; 9) Air Freight Transshipment Route Choice Analysis; 10) A Fuzzy Approach of the Competition on Air Transport Market; and 11) Developing Passenger Demand Models for International Aviation from/to Egypt: A Case Study of Cairo Airport and Egyptair.

  9. An Arduino-Based Resonant Cradle Design with Infant Cries Recognition

    PubMed Central

    Chao, Chun-Tang; Wang, Chia-Wei; Chiou, Juing-Shian; Wang, Chi-Jo

    2015-01-01

    This paper proposes a resonant electric cradle design with infant cries recognition, employing an Arduino UNO as the core processor. For most commercially available electric cradles, the drive motor is closely combined with the bearing on the top, resulting in a lot of energy consumption. In this proposal, a ball bearing design was adopted and the driving force is under the cradle to increase the distance from the object to fulcrum and torque. The sensors are designed to detect the oscillation state, and then the force is driven at the critical time to achieve the maximum output response while saving energy according to the principle of resonance. As for the driving forces, the winding power and motors are carefully placed under the cradle. The sensors, including the three-axis accelerometer and infrared sensor, are tested and applied under swinging amplitude control. In addition, infant cry recognition technology was incorporated in the design to further develop its functionality, which is a rare feature in this kind of hardware. The proposed nonlinear operator of fundamental frequency (f0) analysis is able to identify different types of infant cries. In conclusion, this paper proposes an energy-saving electric cradle with infant cries recognition and the experimental results demonstrate the effectiveness of this approach. PMID:26247947

  10. [Prospective study on the effect of the influence of holiday periods in the weight during a low-calory dietetic treatment].

    PubMed

    García, Cándido Gabriel; Berná, Amparo; Sebastià, Natividad; Soriano, José Miguel

    2013-11-01

    Introducción: El sobrepeso y la obesidad constituyen, tanto en Europa como en España, uno de los mayores problemas de Salud Pública puesto que se asocian a factores de riesgo cardiovascular y a la aparición de otras patologías. Según la SEEDO la prevalencia de obesidad en la sociedad española está cerca del 25 %. Además del estudio de nuestro estilo de vida y hábitos incorporados a las costumbres cotidianas, resultaría interesante evaluar cómo influyen en la ganancia de peso total anual los excesos realizados durante muchas festividades, que en muchos casos se suelen prolongar más allá de los días oficialmente festivos. Material y métodos: Estudio prospectivo, de carácter descriptivo a un total de 258 pacientes (95 varones y 163 mujeres) correspondientes a personas con un tratamiento para la reducción del peso corporal, como mínimo, de un mes. Se estudiaron siete periodos festivos. Resultados: Considerando todos los pacientes, se observó una correlación lineal significativa (p.

  11. Upgrade to the Cryogenic Hydrogen Gas Target Monitoring System

    NASA Astrophysics Data System (ADS)

    Slater, Michael; Tribble, Robert

    2013-10-01

    The cryogenic hydrogen gas target at Texas A&M is a vital component for creating a secondary radioactive beam that is then used in experiments in the Momentum Achromat Recoil Spectrometer (MARS). A stable beam from the K500 superconducting cyclotron enters the gas cell and some incident particles are transmuted by a nuclear reaction into a radioactive beam, which are separated from the primary beam and used in MARS experiments. The pressure in the target chamber is monitored so that a predictable isotope production rate can be assured. A ``black box'' received the analog pressure data and sent RS232 serial data through an outdated serial connection to an outdated Visual Basic 6 (VB6) program, which plotted the chamber pressure continuously. The black box has been upgraded to an Arduino UNO microcontroller [Atmel Inc.], which can receive the pressure data and output via USB to a computer. It has been programmed to also accept temperature data for future upgrade. A new computer program, with updated capabilities, has been written in Python. The software can send email alerts, create audible alarms through the Arduino, and plot pressure and temperature. The program has been designed to better fit the needs of the users. Funded by DOE and NSF-REU Program.

  12. Report from a forum on US heart allocation policy.

    PubMed

    Kobashigawa, J A; Johnson, M; Rogers, J; Vega, J D; Colvin-Adams, M; Edwards, L; Meyer, D; Luu, M; Reinsmoen, N; Dipchand, A I; Feldman, D; Kormos, R; Mancini, D; Webber, S

    2015-01-01

    Since the latest revision in US heart allocation policy (2006), the landscape and volume of transplant waitlists have changed considerably. Advances in mechanical circulatory support (MCS) prolong survival, but Status 1A mortality remains high. Several patient subgroups may be disadvantaged by current listing criteria and geographical disparity remains in waitlist time. This forum on US heart allocation policy was organized to discuss these issues and highlight concepts for consideration in the policy development process. A 25-question survey on heart allocation policy was conducted. Among attendees/respondents were 84 participants with clinical/published experience in heart transplant representing 51 US transplant centers, and OPTN/UNOS and SRTR representatives. The survey results and forum discussions demonstrated very strong interest in change to a further-tiered system, accounting for disadvantaged subgroups and lowering use of exceptions. However, a heart allocation score is not yet viable due to the long-term viability of variables (used in the score) in an ever-developing field. There is strong interest in more refined prioritization of patients with MCS complications, highly sensitized patients and those with severe arrhythmias or restrictive physiology. There is also strong interest in distribution by geographic boundaries modified according to population. Differences of opinion exist between small and large centers.

  13. An Arduino-Based Resonant Cradle Design with Infant Cries Recognition.

    PubMed

    Chao, Chun-Tang; Wang, Chia-Wei; Chiou, Juing-Shian; Wang, Chi-Jo

    2015-08-03

    This paper proposes a resonant electric cradle design with infant cries recognition, employing an Arduino UNO as the core processor. For most commercially available electric cradles, the drive motor is closely combined with the bearing on the top, resulting in a lot of energy consumption. In this proposal, a ball bearing design was adopted and the driving force is under the cradle to increase the distance from the object to fulcrum and torque. The sensors are designed to detect the oscillation state, and then the force is driven at the critical time to achieve the maximum output response while saving energy according to the principle of resonance. As for the driving forces, the winding power and motors are carefully placed under the cradle. The sensors, including the three-axis accelerometer and infrared sensor, are tested and applied under swinging amplitude control. In addition, infant cry recognition technology was incorporated in the design to further develop its functionality, which is a rare feature in this kind of hardware. The proposed nonlinear operator of fundamental frequency (f0) analysis is able to identify different types of infant cries. In conclusion, this paper proposes an energy-saving electric cradle with infant cries recognition and the experimental results demonstrate the effectiveness of this approach.

  14. The 3D scanner prototype utilize object profile imaging using line laser and octave software

    NASA Astrophysics Data System (ADS)

    Nurdini, Mugi; Manunggal, Trikarsa Tirtadwipa; Samsi, Agus

    2016-11-01

    Three-dimensional scanner or 3D Scanner is a device to reconstruct the real object into digital form on a computer. 3D Scanner is a technology that is being developed, especially in developed countries, where the current 3D Scanner devices is the advanced version with a very expensive prices. This study is basically a simple prototype of 3D Scanner with a very low investment costs. 3D Scanner prototype device consists of a webcam, a rotating desk system controlled by a stepper motor and Arduino UNO, and a line laser. Objects that limit the research is the object with same radius from its center point (object pivot). Scanning is performed by using object profile imaging by line laser which is then captured by the camera and processed by a computer (image processing) using Octave software. On each image acquisition, the scanned object on a rotating desk rotated by a certain degree, so for one full turn multiple images of a number of existing side are finally obtained. Then, the profile of the entire images is extracted in order to obtain digital object dimension. Digital dimension is calibrated by length standard, called gage block. Overall dimensions are then digitally reconstructed into a three-dimensional object. Validation of the scanned object reconstruction of the original object dimensions expressed as a percentage error. Based on the results of data validation, horizontal dimension error is about 5% to 23% and vertical dimension error is about +/- 3%.

  15. Difusión de Arnold en un modelo simple

    NASA Astrophysics Data System (ADS)

    Cincotta, P. M.; Nuñez, J. A.; Miloni, O.

    Investigadores como Merritt, Valluri, Pfenniger o Contopoulos (por citar los más relevantes) consideran seriamente la hipótesis que la difusión de Arnold juega un rol importante en la evolución dinámica de los sistemas estelares y planetarios. Sin embargo no existe ninguna evidencia. El mayor problema para investigar fenómenos como éste es que uno debe estudiar numéricamente sistemas multidimensionales (más de dos grados de libertad) y visualizar de alguna manera el espacio de fases (más de cuatro dimensiones). Más complicado aún es el caso de difusión de Arnold, donde deben considerarse tiempos de movimiento extremadamente largos y tratar con parámetros exponencialmente pequeños. El propósito de este trabajo es estudiar, en un modelo simple 3D, la existencia o no de difusión de Arnold mediante experimentos numéricos y estimaciones analíticas. Siguiendo los trabajos de Cincotta (2000) y Cincotta, Nuñez y Simo (2000), aquí se pretende ``visualizar" la difusión y, a la vez, determinar la escala de tiempo en la que ésta se podría manifestar. Este trabajo es el escalón inicial para luego abordar este problema en modelos.

  16. Developing hydrological monitoring networks with Arduino

    NASA Astrophysics Data System (ADS)

    Buytaert, Wouter; Vega, Andres; Villacis, Marcos; Moulds, Simon

    2015-04-01

    The open source hardware platform Arduino is very cost-effective and versatile for the development of sensor networks. Here we report on experiments on the use of Arduino-related technologies to develop and implement hydrological monitoring networks. Arduino Uno boards were coupled to a variety of commercially available hydrological sensors and programmed for automatic data collection. Tested sensors include water level, temperature, humidity, radiation, and precipitation. Our experiments show that most of the tested analogue sensors are quite straightforward to couple to Arduino based data loggers, especially if the electronic characteristics of the sensor are available. However, some sensors have internal digital interfaces, which are more challenging to connect. Lastly, tipping bucket rain gauges prove the most challenging because of the very specific methodology, i.e. registration of bucket tips instead of measurements at regular intervals. The typically low data generation rate of hydrological instruments is very compatible with available technologies for wireless data transmission. Mesh networks such as Xbee prove very convenient and robust for dispersed networks, while wifi is also an option for shorter distances and particular topographies. Lastly, the GSM shield of the Arduino can be used to transfer data to centralized databases. In regions where no mobile internet (i.e. 3G) connection is available, data transmission via text messages may be an option, depending on the bandwidth requirements.

  17. Clinical competence in nursing: A concept analysis.

    PubMed

    Notarnicola, Ippolito; Petrucci, Cristina; De Jesus Barbosa, Maria Rosimar; Giorgi, Fabio; Stievano, Alessandro; Lancia, Loreto

    2016-01-01

    Introduzione. In campo infermieristico la ‘competenza clinica’ è una questione centrale per l’assistenza al paziente e è fondamentale una chiara comprensione del concetto sia per la formazione che per la disciplina infermieristiche. Scopo. Effettuare un analisi del concetto di ‘competenza clinica’ in campo infermieristico. Metodo: E’ stato utilizzato il metodo descritto da Walker e Avant. È stata effettuata una revisione sistematica della letteratura su database internazionali ( PubMed, CINAHL, Scopus, Cochrane, Ovid, Open Grey ) dal 1993 al 2015. Negli articoli reperiti è stata esaminata l’utilizzazione del concetto in esame. Risultati. Sono stati descritti tutti gli 8 step previsti dal modello di Walker e Avant sulla base dei risultati della revisione sistematica della letteratura. Sono stati identificati e discussi gli attributi, gli antecedenti, le conseguenze e i riferimenti empirici della competenza clinica in campo infermieristico e sono stati costruiti i casi modello, limite e contrario. E’ stata discussa anche la rilevanza del concetto sia per la formazione che per lo sviluppo professionale in campo infermieristico. Conclusioni. Questa analisi di concetto ha portato a definire la ‘competenza clinica’ in campo infermieristico come ‘un insieme di capacità, conoscenze, attitudini e abilità che ciascun infermiere deve possedere per effettuare in maniera accettabile tutte quelle attività direttamente correlate all’assistenza al paziente, in uno specifico contesto clinico e in specifiche circostanze allo scopo di promuovere, mantenere e ristabilire la salute dei pazienti’.

  18. Relevamiento de HI en el Hemisferio Austral

    NASA Astrophysics Data System (ADS)

    Arnal, E. M.; Bajaja, E.; Morras, R.; Pöppel, W. G. L.

    Un nuevo relevamiento de HI de todo el Hemisferio Austral, comprendido entre -90o <= δ <= -25o, está siendo observado con la antena I del IAR. El mismo es realizado con alta sensibilidad (r.m.s.<= 0.07 K) y alta resolución espectral (1 Km/s). Un total de ~50000 posiciones en el cielo serán observadas, espaciadas en una grilla (lxb) de (0.5o x 0.5o). El intervalo de velocidades cubierto en este relevamiento abarca el rango -450 km/s a +450 km/s en el sistema LSR. Esta base de datos será corregida por efectos de ``stray radiation''. Al presente se ha observado ~70% del total del relevamiento. El mismo es complementario de uno similar realizado en el Hemisferio Norte por Hartman y Burton (1996), con cubrimiento espacial, sensibilidad, resoluciones espaciales y en velocidad, similares a los del IAR. El objetivo final de ambos relevamientos es disponer de una base de datos uniforme en todo el cielo.

  19. A study to determine whether targeted education significantly improves the perception of human torture in medical students in India.

    PubMed

    Husain, Munawwar; Ghaffar, Usama B; Usmani, Jawed Ahmad; Rivzi, Shameem Jahan

    2010-08-01

    This study was undertaken to find out the knowledge of torture in MBBS students. A fair comparison was done by selecting two groups of medical students; one, to whom torture was not taught ie, pretaught group (PrTG, n = 125), and second, to whom torture was taught in classroom ie, post-taught group (PoTG, n = 110) in more than one sessions. The topic on torture was taught under many headings maximising the effort to cover as much as possible; namely, definition, geographical distribution, types of torture (physical, psychological and sexual), post-torture sequelae, sociopolitical environment prevailing in the country, doctors' involvement in torture, rehabilitation of torture victims and the UNO's role in containment of torture. In all a questionnaire was designed having MCQ types on these aspects. It was found that significant level of difference in perception and knowledge about torture existed amongst the groups, and this was further accentuated in medical and non-medical intratopics. 'P' value of each question was computed separately. It was found that the study was statistically significant and reestablished the need of fortifying the gossameric firmament of education specific to torture.

  20. Biochemical and molecular characterization of new keratinoytic protease from Actinomadura viridilutea DZ50.

    PubMed

    Ben Elhoul, Mouna; Zaraî Jaouadi, Nadia; Rekik, Hatem; Omrane Benmrad, Maroua; Mechri, Sondes; Moujehed, Emna; Kourdali, Sidali; El Hattab, Mohamed; Badis, Abdelmalek; Bejar, Samir; Jaouadi, Bassem

    2016-11-01

    A new extracellular thermostable keratinolytic protease, designated KERDZ, was purified and characterized from a thermophilic actinomycetes Actinomadura viridilutea DZ50 isolated from Algerian fishing port. The isolate exhibited high keratinase production when grown in chicken-feather meal media (18,000U/ml) after 96-h of incubation at 45°C. The enzyme was purified by ammonium sulfate precipitation (35-55%)-dialysis and heat treatment (30min at 75°C) followed by UNO S-1 FPLC cation exchange chromatography and size exclusion HPLC column. The biochemical characterizations carried on include physico-chemical determination and spectroscopic analysis. The MALDI-TOF/MS analysis revealed that the purified enzyme was a monomer with a molecular mass of 19536.10-Da. The sequence of the 25 N-terminal residues of KERDZ showed high homology with those of actinomycetes keratinases. Optimal activity was achieved at pH 11 and 80°C. KERDZ was completely inhibited by PMSF and DFP suggested its belonging to the serine keratinase family. KERDZ displayed higher levels of hydrolysis and catalytic efficiency than bacterial keratinases (KERAK-29, Actinase E, and KERAB) and subtilisins (subtilisin Carlsberg and subtilisin Novo). The kerDZ gene encoding KERDZ was isolated and its DNA sequence was determined. These properties make KERDZ a potential, promising and eco-friendly alternative to the conventional chemicals used for industrial applications.

  1. Appendix stump closure with endoloop in laparoscopic appendectomy.

    PubMed

    Caglià, Pietro; Tracia, Angelo; Spataro, Daniele; Borzì, Laura; Lucifora, Bibiana; Tracia, Luciano; Amodeo, Corrado

    2014-01-01

    L’appendicite acuta rappresenta la più comune patologia infiammatoria della cavità adddominale. Mc Burney ne ha per primo descritto il trattamento chirurgico utilizzando la classica incisione nel quadrante addominale inferiore destro. Tale approccio è stato considerato il trattamento standard della patologia appendicolare per più di un secolo, fino all’inizio dell’era video laparoscopica. I rapidi cambiamenti tecnici e gli innegabili vantaggi della procedura videolaparoscopica ha portato ad una ampia diffusione della metodica in ambito clinico. La chiusura del moncone appendicolare, durante l’appendicectomia video laparoscopica, rappresenta uno degli aspetti tecnici fondamentali della procedura per le gravi potenziali complicanze che possono derivare da un suo non appropriato trattamento. Gravi complicanze sono infatti rappresentate da deiscenza, fistole stercoracee e peritonite. La chiusura con endostapler, hem-o-look e legatura intracorporea rappresentano le metodiche più comunemente utilizzate. Tutte le alternative descritte presentano vantaggi e svantaggi e vanno rapportate ai diversi stadi clinici della patologia appendicolare. Va inoltre notato che le differenti metodiche di trattamento del moncone appendicolare non sono state testate in studi randomizzati. In base alla nostra esperienza si può affermare che il trattamento del moncone appendicolare con endoloop può essere utilizzato con sicurezza e dovrebbe essere considerata la metodica di scelta anche in relazione al rapporto costo-beneficio. Metodi alternativi di chiusura del moncone appendicolare andrebbero utilizzati in caso di appendicite flemmonosa o gangrenosa, ascesso peritiflitico e/o contemporaneo trattamento di diverticolo di Meckel.

  2. [Treatment of trigeminal neuralgia: an update and future prospects of percutaneous techniques].

    PubMed

    Bescós, Agustín; Pascual, Vicenç; Escosa-Bage, Marcos; Malaga, Xavier

    2015-08-01

    Introduccion. La neuralgia del trigemino es uno de los sindromes de dolor facial mas graves. La incidencia anual varia entre el 4-13% y altera de forma significativa la calidad de vida de los afectados. Cuando el dolor no puede controlarse con tratamiento farmacologico, existen diferentes opciones quirurgicas. La seleccion de la tecnica esta basada en estudios observacionales y su aplicacion depende de la experiencia de cada centro. Objetivos. Evaluar la efectividad y el nivel de evidencia del tratamiento farmacologico y quirurgico en la neuralgia del trigemino, y analizar el papel actual de las tecnicas percutaneas en el tratamiento de esta patologia. Desarrollo. El tratamiento inicial de la neuralgia del trigemino es el farmacologico y la carbamacepina es el unico farmaco con suficiente nivel de evidencia. Las tecnicas quirurgicas percutaneas son efectivas y de facil aplicacion, pero la tendencia a la recidiva conduce a la preferencia por la microdescompresion vascular. Sin embargo, no hay estudios comparativos que determinen la superioridad de alguna tecnica con buen nivel de evidencia. Se han revisado las tres tecnicas percutaneas mas utilizadas, la compresion con balon, la rizotomia con glicerol y la termocoagulacion por radiofrecuencia. Esta ultima es la que ha presentado mayor desarrollo en los ultimos años, con la aparicion de tecnicas neurofisiologicas que pueden optimizar los resultados. Conclusiones. La seleccion de una tecnica quirurgica en la neuralgia del trigemino no esta bien apoyada por ensayos clinicos aleatorizados. Los nuevos procedimientos en la aplicacion de la radiofrecuencia pueden mejorar las perspectivas del tratamiento de esta patologia.

  3. [Not Available].

    PubMed

    Curilem Gatica, Cristian; Almagià Flores, Atilio; Rodríguez Rodríguez, Fernando; Yuing Farias, Tuillang; Berral de la Rosa, Francisco; Martínez Salazar, Cristian; Jorquera Aguilera, Carlos; Bahamondes Ávila, Carlos; Soís Urra, Patricio; Cristi Montero, Carlos; Bruneau Chávez, José; Pinto Aguilante, Juan; Niedmann Brunet, Luis

    2016-06-30

    El índice de masa corporal (IMC) otorga uno de los índices más usados para determinar el estado nutricional de la población a nivel mundial, donde a pesar de existir recomendaciones claras y definidas para su interpretación como el sexo, edad, raza, entre otros, normalmente se estandariza su clasificación, independiente de las variables, aumentando el error en el resultado y en la clasificación del estado nutricional.El uso de la composición corporal a través de la antropometría entrega mayor información que el IMC, siendo la masa grasa y la masa muscular los principales resultados útiles.Este artículo presenta una revisión de las ecuaciones existentes y propone aquellas más simples y con menor error de estimación para ser usadas como una herramienta que reemplace o complemente al IMC, favoreciendo una mejor comprensión e interpretación del estado nutricional y nivelde actividad física en niños y adolescentes.

  4. [Restless legs syndrome in patients diagnosed with attention deficit hyperactivity disorder].

    PubMed

    Castano-De la Mota, C; Moreno-Acero, N; Losada-Del Pozo, R; Soto-Insuga, V; Perez-Villena, A; Rodriguez-Fernandez, C; Martin-Del Valle, F; Pons-Rodriguez, M

    2017-04-01

    Introduccion. El sindrome de piernas inquietas (SPI) es una patologia neurologica comun. Se ha relacionado con diferentes trastornos psiquiatricos, especialmente con el trastorno por deficit de atencion/hiperactividad (TDAH). Objetivos. El objetivo principal fue describir la frecuencia del SPI en pacientes pediatricos diagnosticados de TDAH. Los objetivos secundarios del estudio fueron describir otros trastornos del sueño en pacientes con TDAH. Pacientes y metodos. Se realizo un estudio descriptivo prospectivo multicentrico en nueve centros españoles de niños de 6-18 años con diagnostico de TDAH entre enero y junio de 2015. Los datos fueron recogidos por 13 medicos investigadores mediante entrevista con el padre/cuidador y con el menor. Para valorar el grado de funcionamiento de los pacientes con TDAH se utilizo la Children's Global Assessment Scale. Se aplico la Sleep Disturbance Scale for Children de Bruni para el cribado del trastorno de sueño de la infancia. Resultados. Se recogio una muestra de 73 pacientes. Cinco pacientes (6,8%) cumplen criterios diagnosticos de SPI: cuatro de ellos definitivos y uno probable. Conclusiones. El SPI es una entidad frecuente en la edad adulta, pero tambien en la adolescencia y en la infancia. Los pacientes con TDAH tienen un riesgo aumentado de presentar de manera concomitante un SPI.

  5. National Healthcare Delivery Systems Influence Lung Transplant Outcomes for Cystic Fibrosis.

    PubMed

    Merlo, C A; Clark, S C; Arnaoutakis, G J; Yonan, N; Thomas, D; Simon, A; Thompson, R; Thomas, H; Orens, J; Shah, A S

    2015-07-01

    Successful lung transplantation (LTx) depends on multiple components of healthcare delivery and performance. Therefore, we conducted an international registry analysis to compare post-LTx outcomes for cystic fibrosis (CF) patients using the UNOS registry in the United States and the National Health Service (NHS) Transplant Registry in the United Kingdom. Patients with CF who underwent lung or heart-lung transplantation in the United States or United Kingdom between January 1, 2000 and December 31, 2011 were included. The primary outcome was all-cause mortality. Kaplan-Meier analysis and Cox proportional hazards regression evaluated the effect of healthcare system and insurance on mortality after LTx. 2,307 US LTx recipients and 451 individuals in the United Kingdom were included. 894 (38.8%) US LTx recipients had publically funded Medicare/Medicaid insurance. US private insurance and UK patients had improved median predicted survival compared with US Medicare/Medicaid recipients (p < 0.001). In multivariable Cox regression, US Medicare/Medicaid insurance was associated with worse survival after LTx (US private: HR0.78,0.68-0.90,p = 0.001 and UK: HR0.63,0.41-0.97, p = 0.03). This study in CF patients is the largest comparison of LTx in two unique health systems. Both the United States and United Kingdom have similar early survival outcomes, suggesting important dissemination of best practices internationally. However, the performance of US public insurance is significantly worse and may put patients at risk.

  6. Low-cost microcontroller platform for studying lymphatic biomechanics in vitro

    PubMed Central

    Kornuta, Jeffrey A.; Nipper, Matthew E.; Dixon, J. Brandon

    2012-01-01

    The pumping innate to collecting lymphatic vessels routinely exposes the endothelium to oscillatory wall shear stress and other dynamic forces. However, studying the mechanical sensitivity of the lymphatic endothelium remains a difficult task due to limitations of commercial or custom systems to apply a variety of time-varying stresses in vitro. Current biomechanical in vitro testing devices are very expensive, limited in capability, or highly complex; rendering them largely inaccessible to the endothelial cell biology community. To address these short-comings, the authors propose a reliable, low-cost platform for augmenting the capabilities of commercially available pumps to produce a wide variety of flow rate waveforms. In particular, the Arduino Uno, a microcontroller development board, is used to provide open-loop control of a digital peristaltic pump using precisely-timed serial commands. In addition, the flexibility of this platform is further demonstrated through its support of a custom-built cell-straining device capable of producing oscillatory strains with varying amplitudes and frequencies. Hence, this microcontroller development board is shown to be an inexpensive, precise, and easy-to-use tool for supplementing in vitro assays to quantify the effects of biomechanical forces on lymphatic endothelial cells. PMID:23178036

  7. A Comparison of ESA and NASA Space Debris Models

    NASA Astrophysics Data System (ADS)

    Hauptmann, S.

    1996-12-01

    NASA recently developed a new orbital debris environment model for spacecraft design and observations in low earth orbit. This model has been implemented at ESA/ESTEC in an application which is able to assess debris flux distributions according to target and impactor orbital parameters as well as the directional dependencies of the impactor fluxes. In this paper, the following three models are compared: the above mentioned NASA model, the ESA MASTER Analyst Application, developed under ESA/ESOC contract in 1995 and the current NASA space debris reference model, which was developed in 1989. The conceptual designs of the three models are discussed and their quantitative predictions are compared for various target orbit characteristics, including more detailed analysis of the orbits of ERS-1, LDEF and ISSA (International Space Station Alpha). It is shown in particular that considerable discrepancies of more than one order of magnitude exist between the predictions of the different models in the region of sub-mm sized particles as well as for diameters greater than 1cm. Refined predictions of the debris flux given by the different models taking into account the orientation of the surface are investigated in the case of LDEF and ISSA. For further information on ESA and NASA space debris modelling activities have a look at the following sites:

    • Space Debris Activities at ESOC
    • Modelling the Space Environment at ESTEC
    • UNO Office of Outer Space Affairs
    • NASA-JSC Space Science Branch

  8. [Oliver Sacks and literary neurology].

    PubMed

    Guardiola, Elena; Banos, Josep E

    2014-03-16

    Introduccion. La literatura medica de divulgacion intenta poner al alcance del publico general temas medicos en un lenguaje desprovisto, en lo posible, de jerga medica para hacerlo mas inteligible. En el ambito de la neurologia, su complejidad hace dificil que los relatos de esta especialidad sean faciles de comprender para el publico sin formacion medica. Objetivo. El presente articulo revisa la obra de Oliver Sacks en el ambito de la neurologia dirigida al publico general; se presentan las principales caracteristicas y las situaciones clinicas que describe. Desarrollo. Se incluyen unas notas biograficas sobre Oliver Sacks y se analizan los 11 libros publicados a lo largo de los ultimos 40 años. Para cada uno de ellos, se realiza una contextualizacion historica y se comentan los aspectos mas destacados que justifican el interes de su lectura. En la mayoria de los casos, se explica la genesis de la obra, asi como sus caracteristicas mas relevantes. Conclusiones. La obra de Sacks contiene un amplio abanico de situaciones clinicas de gran interes que se explican, generalmente, con un lenguaje accesible para el publico general. A los neurologos les permite, ademas, una vision holistica de diversas situaciones clinicas con una discusion de sus componentes biograficos, historicos y evolutivos.

  9. [RIT1: a novel gene associated with Noonan syndrome].

    PubMed

    Arroyo-Carrera, I; Solo de Zaldivar-Tristancho, M; Martin-Fernandez, R; Vera-Torres, M; Gonzalez de Buitrago-Amigo, J F; Botet-Rodriguez, J

    2016-10-16

    Introduccion. El sindrome de Noonan es el mas frecuente del grupo de los sindromes malformativos congenitos originados por mutaciones germinales en genes de la via RAS/MAPK, denominados genericamente RAS-opatias, uno de los grupos mas comunes de alteraciones geneticas congenitas en la practica clinica. Recientemente se han descrito mutaciones en el gen RIT1 en pacientes con sindrome de Noonan. Caso clinico. Nina de 7 anos con diagnostico clinico de sindrome de Noonan, que entre sus manifestaciones clinicas incluye miocardiopatia hipertrofica, en la que se ha identificado una mutacion de novo en heterocigosis, en RIT1, c.295T>C (p.Phe99Leu), no descrita previamente, probablemente causal. Conclusiones. RIT1 comparte homologia con otras proteinas RAS y la expresion de alelos mutantes origina un efecto de ganancia de funcion que apoya su papel causal en el sindrome de Noonan. Podemos estimar actualmente que es responsable de un 3-5% de los casos del sindrome. Estos casos con sindrome de Noonan, respecto a los que presentan mutaciones en otros genes, se caracterizan por una mayor frecuencia de alteraciones prenatales, alta frecuencia de miocardiopatia hipertrofica y menor frecuencia de talla baja y deformidad toracica. Destaca la importancia de incorporar los nuevos genes identificados en los paneles diagnosticos.

  10. Design and Implementation of an Intelligent Windowsill System Using Smart Handheld Device and Fuzzy Microcontroller.

    PubMed

    Wang, Jing-Min; Yang, Ming-Ta; Chen, Po-Lin

    2017-04-11

    With the advance of science and technology, people have a desire for convenient and comfortable living. Creating comfortable and healthy indoor environments is a major consideration for designing smart homes. As handheld devices become increasingly powerful and ubiquitous, this paper proposes an innovative use of smart handheld devices (SHD), using MIT App Inventor and fuzzy control, to perform the real-time monitoring and smart control of the designed intelligent windowsill system (IWS) in a smart home. A compact weather station that consists of environment sensors was constructed in the IWS for measuring of indoor illuminance, temperature-humidity, carbon dioxide (CO₂) concentration and outdoor rain and wind direction. According to the measured environment information, the proposed system can automatically send a command to a fuzzy microcontroller performed by Arduino UNO to fully or partly open the electric curtain and electric window for adapting to climate changes in the indoor and outdoor environment. Moreover, the IWS can automatically close windows for rain splashing on the window. The presented novel control method for the windowsill not only expands the SHD applications, but greatly enhances convenience to users. To validate the feasibility and effectiveness of the IWS, a laboratory prototype was built and confirmed experimentally.

  11. [Description of a series of hospital patients with a spinal fistula].

    PubMed

    Garcia-Cabo, C; Morales-Deza, E S; Martinez-Rodriguez, L; Murias-Quintana, E; Perez-Alvarez, A; Martinez-Ramos, J; Vega-Valdes, P; Suarez-Santos, P; Garcia-Rua, A; Moris, G

    2016-10-01

    Introduccion. Aunque las fistulas espinales suponen el 70% de las malformaciones arteriovenosas espinales, son una entidad infradiagnosticada. El shunt arteriovenoso produce una congestion vascular que da lugar a una mielopatia progresiva, en ocasiones irreversible si no se trata de forma precoz. Objetivo. Describir las caracteristicas clinicorradiologicas de una serie de pacientes con fistula espinal. Pacientes y metodos. Se realizo una busqueda retrospectiva de pacientes con diagnostico de fistula espinal ingresados en el area de neurociencias de un hospital de tercer nivel asistencial. Resultados. Se identificaron 19 pacientes (7 mujeres y 12 varones) con una edad media de 56 años. La fistula espinal fue de tipo I en un 79% de los pacientes y la localizacion dorsal fue la mas frecuente. La mayoria de los casos presento un curso progresivo (90%). Un 74% de los pacientes se diagnostico mediante resonancia magnetica. En cuatro casos fue necesaria la realizacion de una angiografia para llegar al diagnostico, y en uno de ellos se preciso una biopsia intraoperatoria. Se realizaron tres punciones lumbares, en dos de las cuales se objetivo pleocitosis linfocitaria e hiperproteinorraquia. El retraso diagnostico medio fue de nueve meses. Se trato a un 79% de los pacientes, y de ellos solo mejoro el 10%. Conclusiones. Ante una clinica sugestiva de fistula espinal, debe realizarse una angiografia espinal diagnostica aunque el paciente estudiado pueda presentar caracteristicas licuorales atipicas y normalidad en la resonancia magnetica medular.

  12. Richard H. Bolt introduced me to acoustics, and I am still engaged

    NASA Astrophysics Data System (ADS)

    Dyer, Ira

    2003-04-01

    I arrived at the MIT Acoustics Laboratory in 1948, and quickly learned from Dick Bolt that U.S. submarines needed coatings to reduce vulnerability via active sonar detection. All who remember Dick will be familiar with his next step: He brought me to Robert Blizzard and A. Wilson Nolle, both then at the Lab, from whom I learned in detail how to measure and then how to understand the dynamic moduli of rubber-like materials. My path, of course, widened to include medical acoustics (under the leadership of Theodore Hueter) and scattering (Phillip Morse and Uno Ingard). Fast-forward to the present. Rubber-like materials are not only in use as submarine coatings to avoid detection by active sonars, but also to reduce noise radiated by submarines. Further, such materials cover submarine acoustic arrays to reduce flow-noise interference with signals received by such arrays. The problem that most engages me today is the stochastic nature of sound propagation in the ocean, a problem that has the practical consequence of degraded sonar performance. In the spirit of Dick, I will present snippets of my current work, with the hope of painting the big picture that he always did so well.

  13. Semi-discrete approximations to nonlinear systems of conservation laws; consistency and L(infinity)-stability imply convergence

    NASA Technical Reports Server (NTRS)

    Tadmor, Eitan

    1988-01-01

    A convergence theory for semi-discrete approximations to nonlinear systems of conservation laws is developed. It is shown, by a series of scalar counter-examples, that consistency with the conservation law alone does not guarantee convergence. Instead, a notion of consistency which takes into account both the conservation law and its augmenting entropy condition is introduced. In this context it is concluded that consistency and L(infinity)-stability guarantee for a relevant class of admissible entropy functions, that their entropy production rate belongs to a compact subset of H(loc)sup -1 (x,t). One can now use compensated compactness arguments in order to turn this conclusion into a convergence proof. The current state of the art for these arguments includes the scalar and a wide class of 2 x 2 systems of conservation laws. The general framework of the vanishing viscosity method is studied as an effective way to meet the consistency and L(infinity)-stability requirements. How this method is utilized to enforce consistency and stability for scalar conservation laws is shown. In this context we prove, under the appropriate assumptions, the convergence of finite difference approximations (e.g., the high resolution TVD and UNO methods), finite element approximations (e.g., the Streamline-Diffusion methods) and spectral and pseudospectral approximations (e.g., the Spectral Viscosity methods).

  14. Center-level patterns of indicated willingness to and actual acceptance of marginal kidneys.

    PubMed

    Massie, A B; Stewart, D E; Dagher, N N; Montgomery, R A; Desai, N M; Segev, D L

    2010-11-01

    UNet(SM) , the UNOS data collection and electronic organ allocation system, allows centers to specify organ offer acceptance criteria for patients on their kidney waiting list. We hypothesized that the system might not be fully utilized and that the criteria specified by most transplant centers would be much broader than the characteristics of organs actually transplanted by those centers. We analyzed the distribution of criteria values among waitlist patients (N = 304 385) between January 2000 and February 2009, mean criteria values among listed candidates on February 19, 2009 and differences between a center's specified criteria and the organs it accepted for transplant between July 2005 and April 2009. We found wide variation in use of criteria variables, with some variables mostly or entirely unused. Most centers specified very broad criteria, with little within-center variation by patient. An offer of a kidney with parameters more extreme than the maximum actually transplanted at that center was designated a 'surplus offer' and indicated a potentially avoidable delay in distribution. We found 7373 surplus offers (7.1% of all offers), concentrated among a small number of centers. The organ acceptance criteria system is currently underutilized, leading to possibly avoidable inefficiencies in organ distribution.

  15. [Spanish translation and validation of the Postural Assessment Scale for Stroke Patients (PASS) to assess balance and postural control in adult post-stroke patients].

    PubMed

    Cabanas-Valdés, Rosa; Girabent-Farrés, Monserrat; Cánovas-Vergé, David; Caballero-Gómez, Fernanda M; Germán-Romero, Ana; Bagur-Calafat, Caritat

    2015-02-16

    Introduccion. En los ultimos años, la Postural Assessment Scale for Stroke Patients (PASS) se ha convertido en la escala mas utilizada para valorar el equilibrio y el control postural en pacientes adultos que han sufrido un ictus, especialmente en la fase aguda y subaguda. Objetivo. Traducir y validar la PASS para la poblacion española como instrumento de valoracion del equilibrio y el control postural en pacientes adultos postictus. Pacientes y metodos. Se tradujo al español la version original francesa de la PASS; dicha version fue consensuada por un equipo de expertos. Posteriormente se hizo una retrotraduccion al frances y se envio al autor de la escala, el cual aprobo dicha version. Seguidamente se evaluo la fiabilidad intra e interobservador; para ello se llevaron a cabo cuatro mediciones a 60 pacientes postictus, a partir de una videograbacion. Dos de estas mediciones fueron realizadas por el mismo observador, y la tercera y cuarta, por un segundo y tercer observadores. Resultados. Los valores obtenidos referidos a la puntuacion total de la escala reflejan un indice de fiabilidad del 0,999; tambien muestran una fiabilidad superior a 0,90 en cada uno de los items, tanto en las comparaciones intraobservador como interobservador, y una consistencia interna del 0,94. Conclusion. La version española de la PASS es valida y fiable para valorar el equilibrio y el control postural en pacientes adultos postictus.

  16. [Activities after school time and obesity in children. Influence of family and neighborhood environment].

    PubMed

    Yamamoto-Kimura, Liria T; Alvear-Galindo, Ma Guadalupe; Morán-Álvarez, Cristina; Acuña-Sánchez, Ma Eugenia; Torres-Durán, Patricia V; Juárez-Oropeza, Marco Antonio; Ferreira-Hermosillo, Aldo; Solís-Díaz, Ma Guadalupe

    2013-01-01

    Introducción: los niños de primaria en México permanecen poco tiempo en el ámbito escolar. El objetivo de este trabajo fue conocer las características somatométricas de los escolares y sus padres e investigar las actividades extraescolares que realizan y las que les gustaría realizar y la razón por la que no lo hacen. Métodos: participaron 172 niños de uno y otro sexo, de primer y segundo año de una escuela primaria oficial de una colonia marginada. Resultados: la frecuencia de bajo peso fue de 12.1 %; de sobrepeso, de 19 % y de obesidad, de 18.5 %. Las actividades sedentarias como ver la televisión y los videojuegos fueron las más altas y las deportivas las más bajas, principalmente en las niñas. La falta de tiempo de los padres, los bajos recursos económicos de la familia y la falta de espacios seguros donde los niños puedan jugar y realizar actividades físicas y deportivas fueron los factores más importantes. Conclusiones: la pobreza y la inseguridad del barrio determinan las actividades extraescolares. La alta frecuencia de bajo peso, el sobrepeso y la obesidad en los escolares se relacionaron con la falta de actividad física.

  17. Donor-estimated GFR as an appropriate criterion for allocation of ECD kidneys into single or dual kidney transplantation.

    PubMed

    Snanoudj, R; Rabant, M; Timsit, M O; Karras, A; Savoye, E; Tricot, L; Loupy, A; Hiesse, C; Zuber, J; Kreis, H; Martinez, F; Thervet, E; Méjean, A; Lebret, T; Legendre, C; Delahousse, M

    2009-11-01

    It has been suggested that dual kidney transplantation (DKT) improves outcomes for expanded criteria donor (ECD) kidneys. However, no criteria for allocation to single or dual transplantation have been assessed prospectively. The strategy of DKT remains underused and potentially eligible kidneys are frequently discarded. We prospectively compared 81 DKT and 70 single kidney transplant (SKT) receiving grafts from ECD donors aged >65 years, allocated according to donor estimated glomerular filtration rate (eGFR): DKT if eGFR between 30 and 60 mL/min, SKT if eGFR greater than 60 mL/min. Patient and graft survival were similar in the two groups. In the DKT group, 13/81 patients lost one of their two kidneys due to hemorrhage, arterial or venous thrombosis. Mean eGFR at month 12 was similar in the DKT and SKT groups (47.8 mL/min and 46.4 mL/min, respectively). Simulated allocation of kidneys according to criteria based on day 0 donor parameters such as those described by Remuzzi et al., Andres et al. and UNOS, did not indicate an improvement in 12-month eGFR compared to our allocation based on donor eGFR.

  18. Kidneys at higher risk of discard: expanding the role of dual kidney transplantation.

    PubMed

    Tanriover, B; Mohan, S; Cohen, D J; Radhakrishnan, J; Nickolas, T L; Stone, P W; Tsapepas, D S; Crew, R J; Dube, G K; Sandoval, P R; Samstein, B; Dogan, E; Gaston, R S; Tanriover, J N; Ratner, L E; Hardy, M A

    2014-02-01

    Half of the recovered expanded criteria donor (ECD) kidneys are discarded in the United States. A new kidney allocation system offers kidneys at higher risk of discard, Kidney Donor Profile Index (KDPI)>85%, to a wider geographic area to promote broader sharing and expedite utilization. Dual kidney transplantation (DKT) based on the KDPI is a potential option to streamline allocation of kidneys which otherwise would have been discarded. To assess the clinical utility of the KDPI in kidneys at higher risk of discard, we analyzed the OPTN/UNOS Registry that included the deceased donor kidneys recovered between 2002 and 2012. The primary outcomes were allograft survival, patient survival and discard rate based on different KDPI categories (<80%, 80-90% and >90%). Kidneys with KDPI>90% were associated with increased odds of discard (OR=1.99, 95% CI 1.74-2.29) compared to ones with KDPI<80%. DKTs of KDPI>90% were associated with lower overall allograft failure (HR=0.74, 95% CI 0.62-0.89) and better patient survival (HR=0.79, 95% CI 0.64-0.98) compared to single ECD kidneys with KDPI>90%. Kidneys at higher risk of discard may be offered in the up-front allocation system as a DKT. Further modeling and simulation studies are required to determine a reasonable KDPI cutoff percentile.

  19. Academic environment and dynamics in response to extreme events: Theory and Practice (Katrina Lessons)

    NASA Astrophysics Data System (ADS)

    Sidorovskaia, Natalia

    2008-03-01

    The possibility of a catastrophic event requires the department as a unit and the university as an organization to devise a comprehensive emergency response plan to minimize the impact and shorten the recovery stage. Does the academic organizational structure and environment possess key features for the possibility of successful response to extreme events? The post Hurricane Katrina experience of Louisiana universities offers data to address this theoretical question. It also emphasizes that the mitigation plan should include two aspects: preparing/protecting a university for/during a catastrophic event and assisting other academic institutions experiencing an extreme event. Short-term and longer-term statistics and other data pertain to the interaction of the University of Louisiana at Lafayette (as an assistance unit) with the universities in New Orleans (units in distress), including the dynamics of student population, faculty influx, course adjustments, and response and recovery actions are presented. An attempt is made to categorize the losses and to assess the recovery quality and time. Faculty and institutional administration interviews are summarized to assist in developing future proactive response plans. UL Lafayette and UNO research capabilities and intellectual resources for developing complex models simulating the multi-variable effects of catastrophic events and providing adaptability in the decision-making process are investigated.

  20. Preventable Errors in Organ Transplantation: An Emerging Patient Safety Issue?

    PubMed Central

    Ison, Michael G.; Holl, Jane L.; Ladner, Daniela

    2012-01-01

    Several widely publicized errors in transplantation including a death due ABO incompatibility, two HIV transmissions and two HCV transmissions have raised concerns about medical errors in organ transplantation. The root cause analysis of each of these events revealed preventable failures in the systems and processes of care as the underlying causes. In each event, no standardized system or redundant process was in place to mitigate the failures that led to the error. Additional system and process vulnerabilities such as poor clinician communication, erroneous data transcription and transmission were also identified. Organ transplantation, because it is highly complex, often stresses the systems and processes of care and, therefore, offers a unique opportunity to proactively identify vulnerabilities and potential failures. Initial steps have been taken to understand such issues through the OPTN/UNOS Operations and Safety Committee, the Disease Transmission Advisory Committee (DTAC), and the current A2ALL ancillary Safety Study. However, to effectively improve patient safety in organ transplantation, the development of a process for reporting of preventable errors that affords protection and the support of empiric research are critical. Further, the transplant community needs to embrace the implementation of evidence-based system and process improvements that will mitigate existing safety vulnerabilities. PMID:22703471

  1. Decreased graft survival in liver transplant recipients of donors with positive blood cultures: a review of the United Network for Organ Sharing dataset.

    PubMed

    Huaman, Moises A; Vilchez, Valery; Mei, Xiaonan; Shah, Malay B; Daily, Michael F; Berger, Jonathan; Gedaly, Roberto

    2016-11-29

    Liver transplantation using blood culture positive donors (BCPD) has allowed a significant expansion of the donor pool. We aimed to characterize BCPD and assess the outcomes of BCPD liver transplant recipients. We retrieved data from the United Network for Organ Sharing (UNOS) registry on all adults who underwent primary, single-organ deceased-donor liver transplantation in the USA between 2008 and 2013. Patients were classified into two cohorts: the BCPD cohort and the non-BCPD cohort. One-year graft and patient survival were compared between cohorts using Kaplan-Meier estimates and Cox models. A total of 28 961 patients were included. There were 2316 (8.0%) recipients of BCPD. BCPD were more likely to be older, female, black, diabetic, hypertensive, and obese compared to non-BCPD. Graft survival was significantly lower in BCPD recipients compared to non-BCPD recipients (Kaplan-Meier, 0.85 vs. 0.87; P = 0.009). Results remained significant in propensity-matched analysis (P = 0.038). BCPD was independently associated with decreased graft survival (adjusted HR; 1.10, 95% CI 1.01-1.20; P = 0.04). There were no significant differences in patient survival between study groups. BCPD was associated with decreased graft survival in liver transplant recipients. Studies are needed to identify subgroups of BCPD with the highest risk of graft failure and characterize the underlying pathogenic mechanisms.

  2. SPITZER observations of luminous obscured Quasars

    NASA Astrophysics Data System (ADS)

    Bellocchi, E.; Pozzi, F.; Fritz, J.; Comastri, A.; Vignali, C.; Mignoli, M.

    2008-10-01

    Si presentano i risultati di uno studio della distribuzione di energia spettrale (SED) di un campione di sorgenti a z = 0.7-2 selezionate in banda 2-10 keV dalla survey HELLAS2XMM, caratterizzate da luminosita` L_(2-10) keV ~ 10^44 erg/sec e densita` di colonna N_H > 10^22 cm^-2 che le distingue come quasar di tipo II (oscurati). Si sono analizzati i dati ottenuti da Spitzer (4 bande IRAC e MIPS a 24 micron). Le SED sono state modellate utilizzando sia templates empirici di quasar di tipo I (Elvis et al. 1994; Richards et al. 2006) con diversi livelli di estinzione, sia un modello teorico (Fritz et al. 2006) in grado di vincolare i parametri fisici piu` importanti del toro stesso (ad esempio, lo spessore ottico del toro, l'angolo con cui viene osservata la sorgente e il covering factor). Per ciascuna sorgente del campione si e` stimata la luminosita` bolometrica nucleare (10^45-10^47 erg/s) e la correzione bolometrica k_(bol,2-10 keV), definita come il rapporto tra la luminosita` bolometrica e la luminosita` misurata in banda 2-10 keV. Infine, si evidenzia come l'utilizzo dei dati MIPS a 70 e 160 micron sia importante nel vincolare ulteriormente il modello di toro e, di conseguenza, nel fornire una migliore stima della luminosita` infrarossa e bolometrica.

  3. [Supra-on state freezing of gait: two case reports].

    PubMed

    Gallardo-Alcaniz, M José; Cabello-De la Rosa, Juan P; Bravo-Gomez, José J; Diaz-Gomez, Samuel; Vaamonde-Gamo, Julia

    2016-04-16

    Introduccion. Durante los ultimos años se han descrito diversos tipos de congelacion de la marcha (CDM), definidos fundamentalmente por su respuesta o no al tratamiento con levodopa. El fenomeno de la CDM en la enfermedad de Parkinson es de presentacion muy variable de unos pacientes a otros, con sustrato fisiopatologico diverso. En algunos pacientes, el aumento del estimulo dopaminergico no solo no mejora, sino que puede empeorar este problema. Casos clinicos. Se presentan dos pacientes con enfermedad de Parkinson que fueron evaluados en situacion off, on y supra-on. Para la evaluacion motora se utilizo la Unified Parkinson's Disease Rating Scale III (bilateral) y el tapping test en las extremidades inferiores, y se cuantificaron los episodios de CDM que presentaban los pacientes en las tres situaciones. Ambos pacientes sufrian episodios de CDM en situacion off que no mejoraban significativamente durante el on. Al aumentar el estimulo dopaminergico, en un intento de mejorar la respuesta motora, empeoraron significativamente los episodios de CDM, hasta el punto de imposibilitar la marcha por graves bloqueos. Conclusiones. Los episodios de CDM no siempre son una mera consecuencia de la acinesia o la rigidez. En la fisiopatologia de la CDM podrian intervenir estructuras que desbordan la sustancia negra y el deficit dopaminergico, lo cual podria explicar la falta de respuesta adecuada al tratamiento e incluso el empeoramiento por desequilibrio de los neurotransmisores, en relacion con la sobreestimulacion dopaminergica, en otros nucleos implicados en el control postural y de la marcha.

  4. Assessment of the efficacy and safety of fampridine.

    PubMed

    Mejuto, Beatriz; Castellano, Paloma; Castro, Concepción; López, Luis Manuel

    2017-03-01

    Objetivo: Evaluación de la efectividad y seguridad de la fampridina en la mejoría de la marcha de pacientes adultos con esclerosis múltiple.Método: Estudio descriptivo retrospectivo de todos los pacientes que iniciaron tratamiento con fampridina entre marzo de 2014 y febrero de 2015. Se evaluó la efectividad utilizando el test de marcha de los 25 pies y la escala de movilidad de 12 ítems de la esclerosis múltiple. Se revisó si los pacientes habían sufrido alguno de los efectos adversos más frecuentes descritos en el ensayo pivotal.Resultados: Se incluyeron 6 pacientes, con una tasa de respuesta del 66,7%. A los 3-6 meses, el cambio medio en la velocidad de la marcha (comparado con el basal) fue del 39,32% y hubo una mejora media de 15 puntos en la escala de movilidad. Solo uno de los pacientes presentó efectos adversos. Conclusiones: Los resultados obtenidos son esperanzadores, sobre todo cuando la fampridina es el único fármaco autorizado actualmente para controlar un síntoma tan discapacitante como es la inestabilidad de la marcha.

  5. [Family intervention for the management of overweight and obesity in schoolchildren].

    PubMed

    González-Heredia, Ricardo; Castañeda-Sánchez, Oscar; López-Morales, Cruz Mónica; Brito-Zurita, Olga Rosa; Sabag-Ruize, Enrique

    2014-01-01

    INTRODUCTIÓN: el manejo de la obesidad es complejo y debe ser multidisciplinario; los tratamientos conductuales basados en la familia para el control de la obesidad infantil tienen un alto grado de eficacia. Se ha argumentado que cuando los niños y los padres son blanco de los cambios de comportamiento en conjunto, los resultados de pérdida de peso generalmente mejoran. El objetivo es determinar el efecto de una intervención basada en la familia para la reducción de peso en escolares con sobrepeso u obesidad. MÉTODOS: estudio cuasi experimental en escolares de 6 a 12 años de la Unidad Médica Familiar 1 en Ciudad Obregón, Sonora. El grupo de intervención correspondió a 30 escolares con sobrepeso u obesidad, además de que uno o ambos padres presentaron sobrepeso u obesidad; en el grupo control se incluyeron 30 escolares con sobrepeso u obesidad, y padres con peso normal. Se midió peso, talla e índice de masa corporal (IMC) basal, final y mensual. Se utilizó t de Student para contrastar las variables cuantitativas, por medio del programa SPSS, versión 15.

  6. [Consumption of fruits and its association with nutritional status in chilean university students career of physical education].

    PubMed

    Durán-Agüero, Samuel; Valdes-Badilla, Pablo; Godoy Cumillaf, Andrés; Herrera-Valenzuela, Tomás

    2015-05-01

    Introducción: Chile es uno de los paises que alcanza los mayores niveles de sobrepeso y obesidad a nivel mundial (66.7% de la poblacion chilena), siendo los estudiantes universitarios un grupo tendiente a engrosar estas cifras por considerarse un grupo vulnerable nutricionalmente. Objetivo: Asociar el consumo de frutas con el estado nutricional de estudiantes universitarios chilenos de educacion fisica. Métodos: La poblacion estuvo constituida por todos los estudiantes de la Carrera de Pedagogia en Educacion Fisica de la Universidad Autonoma de Chile, sede Temuco (n=420). La muestra incluyo a 239 estudiantes (56,9%), hombres (76,5%), con un promedio de edad de 21,5 } 2,1 anos. A cada alumno se determino el estado nutricional y se les aplico una encuesta de habitos alimentarios validada. Resultados: Se observa una asociacion entre el consumo de frutas (≥2 porciones/dia) en el modelo crudo OR=0,528 (0,288-0,965), modelo ajustado 1 OR=0,496 (0,268-0,916) y modelo ajustado 2 OR=0,495 (0,265- 0,924) Conclusión: El consumo ≥ 2 porciones al dia de frutas es un factor protector para un buen IMC en estudiantes universitarios chilenos de educacion fisica.

  7. [Musical hallucinations: perpetual music].

    PubMed

    Zabalza-Estévez, Ramón J

    2014-03-01

    Introduccion. Las alucinaciones musicales son un tipo de alucinacion auditiva prevalente en la poblacion no psiquiatrica, pero escasamente comunicada en la bibliografia neurologica. Ocurren con mayor frecuencia en la poblacion anciana, del sexo femenino y con perdida de audicion, pero su fisiopatologia esta por desentrañar. Casos clinicos. Se presentan seis casos (cinco mujeres y un hombre) de alucinaciones musicales diagnosticados en una consulta de neurologia general en un lapso de tiempo de cinco años. En cinco de ellos concurria la hipoacusia en mayor o menor grado y uno estaba desencadenado por la pentoxifilina. En su mayoria, el contenido musical de las alucinaciones provenia de experiencias musicales vividas en la infancia y juventud. En los casos sometidos a tratamiento farmacologico la respuesta fue pobre; sin embargo, una vez explicada a los pacientes la benignidad del cuadro y su desvinculacion con patologia psicotica, el grado de aceptacion del sintoma fue bueno. Conclusiones. Las alucinaciones musicales son una patologia fronteriza entre la neurologia, la otorrinolaringologia y la psiquiatria poco conocida, que, con frecuencia, se vincula erroneamente a la enfermedad mental. Es fundamental explicar a pacientes y familiares el caracter no necesariamente psiquiatrico de este sintoma, asi como conocer la potencialidad que tienen algunos farmacos de uso comun para generarlo.

  8. Evolución de planetas gigantes y posibilidades de su detección directa

    NASA Astrophysics Data System (ADS)

    Brunini, A.; Benvenuto, O. G.

    Desde la reciente detección de planetas gigantes orbitando estrellas cercanas de tipo solar por medio de efecto Doppler, uno de los principales problemas, en cuanto al estudio de los sistemas planetarios extrasolares, se refiere a la posibilidad de obtener evidencia directa de su existencia. Esto parece ser factible gracias a que en un futuro cercano entrarán en operación algunos telescopios especialmente adecuados a estos propósitos. Por tal motivo, hemos comenzado desde hace un tiempo un esfuerzo en cuanto al estudio de la evolución planetaria. A tales efectos hemos adaptado el código de evolución estelar de nuestro Observatorio al caso planetario. Las principales diferencias entre el caso estelar y el planetario se encuentran en la ecuación de estado. A tales fines hemos incluído la reciente ecuación de estado de Saumon, Chabrier y Van Horn, las opacidades radiativas de Guillot et al., procesos de quema de Deuterio, etc. También se ha considerado la posible existencia de fases de hielo y roca en el interior planetario. Por el momento hemos despreciado los efectos de la rotación planetaria. Con este código hemos computado la evolución de planetas con masas desde 10 hasta 0.3 masas de Júpiter. Utilizando nuestros resultados numéricos discutimos la detectabilidad de estos objetos en condiciones realistas.

  9. [Epilepsy and cognition: the role of antiepileptic drugs].

    PubMed

    García-Peñas, Juan José; Fournier-Del Castillo, M Concepción; Domínguez-Carral, Jana

    2014-02-24

    Introduccion. Multiples y muy diversos factores se relacionan con la alteracion cognitiva en la epilepsia, incluyendo el efecto adverso directo de los farmacos antiepilepticos (FAE). El uso de los FAE requiere de un riguroso equilibrio entre riesgo y beneficio para conseguir asi el mejor control de las crisis con el menor numero de efectos adversos neurocognitivos. Objetivo. Analizar los efectos adversos cognitivos generales y especificos de los FAE de primera, segunda y tercera generacion. Desarrollo. Todos los FAE disponibles pueden producir efectos adversos cognitivos, que son mas frecuentes en politerapia, con dosis totales altas y niveles sericos elevados. Las alteraciones mas comunes son el descenso de la capacidad de reaccion y de la velocidad de procesamiento con afectacion concomitante de la memoria, la atencion y el lenguaje. Sin embargo, hay gran controversia sobre la existencia o no de perfiles cognitivos especificos para cada uno de los distintos FAE y se dispone de una informacion contradictoria al respecto por la inadecuada metodologia de los estudios comparativos. Conclusiones. Los efectos adversos cognitivos de los FAE son frecuentes y pueden afectar negativamente la tolerabilidad, el cumplimiento y el mantenimiento a largo plazo del tratamiento antiepileptico. Se debe considerar el potencial efecto adverso cognitivo de los distintos FAE a la hora de elegir un tratamiento y es importante reconocer e identificar precozmente estos efectos adversos y saber como pueden afectar a los pacientes.

  10. [Language disorders in acute cerebellitis: beyond dysarthria].

    PubMed

    Barragan-Martinez, D; Nunez-Enamorado, N; Berenguer-Potenciano, M; Villora-Morcillo, N; Martinez de Aragon, A; Camacho-Salas, A

    2017-01-01

    Introduccion. La cerebelitis aguda es una de las principales causas de sindrome cerebeloso en la infancia. Entre un amplio elenco de manifestaciones, en el que predominan la cefalea y la ataxia, podemos encontrar otras menos habituales, aunque interesantes, como las alteraciones del lenguaje, mas alla de la bien conocida disartria cerebelosa. Las diferentes combinaciones en que pueden aparecer los sintomas, especialmente cuando no se acompañan de ataxia, hacen de este cuadro un verdadero reto para el clinico. Casos clinicos. Se presentan dos pacientes, de 2 y 4 años, con clinica, pruebas de laboratorio y neuroimagen compatibles con cerebelitis aguda parainfecciosa, que asociaron una llamativa alteracion del lenguaje, uno en forma de mutismo cerebeloso y otro en forma de hipofluencia y agramatismo, y este ultimo cursaba ademas en ausencia de ataxia. La evolucion de ambos casos fue buena, y persistieron leves alteraciones del habla en el seguimiento posterior. Conclusiones. Casos como estos amplian el espectro de manifestaciones clinicas de la cerebelitis aguda. Cada vez cobra mayor importancia la participacion del cerebelo en procesos neurocognitivos como el lenguaje y, aunque muchos aspectos son aun especulativos, alcanzar a definir su verdadero papel tendra una repercusion en el diagnostico, el tratamiento y el pronostico a largo plazo de estos pacientes.

  11. [Diphallia: a case report].

    PubMed

    Rossete-Cervantes, Héctor Enrique; Villegas-Muñoz, Alvaro

    2016-01-01

    Introducción: la difalia es una alteración anatómica poco frecuente que se presenta en uno de cada cinco millones de nacimientos. Su etiología se desconoce y su apariencia varía desde un pene accesorio pequeño hasta la duplicación completa y se asocia con otras malformaciones congénitas urogenitales, gastrointestinales, cardiacas y musculoesqueléticas. Se han diseñado varias clasificaciones de acuerdo con las características anatómicas y el estudio de esta alteración se complementa con ecografía e imagen de resonancia magnética. El tratamiento debe ser temprano y se individualiza con el objetivo de lograr un resultado estético y funcional que sea satisfactorio. Caso clínico: reportamos el hallazgo incidental de difalia, sin otras malformaciones anatómicas asociadas, en un adulto de 83 años que fue hospitalizado y falleció por traumatismo craneoencefálico severo. Conclusión: el caso que presentamos es relevante por lo poco frecuente de esta alteración, la ausencia de otras malformaciones anatómicas asociadas y la edad a la que se detectó.

  12. The Lagerlunda collision and the introduction of color vision testing.

    PubMed

    Mollon, J D; Cavonius, L R

    2012-01-01

    In histories of vision testing, the origins of occupational screening for color blindness are often traced to a fatal railroad accident that occurred in Sweden on the night of 14-15 November 1875. The scene of the accident was the estate of Baron Lagerfelt in Östergötland, but the critical events were played out at Linköping (the normal passing place for the northbound and southbound expresses) and at Bankeberg (a small station to which the passing place was reassigned at a few minutes' notice). First to arrive at Bankeberg, the northbound express slowed almost to a halt, but then inexplicably accelerated forwards towards the Lagerlunda estate, despite a sequence of signals from the stationmaster, Uno Björkelund, and a lineman, Oskar Johansson. Soon after the accident, the ophthalmologist Frithiof Holmgren suggested that the engineer of the northbound express, Andersson, or his oiler, Larsson, had been color blind. Neither survived to be tested. Using the records of the subsequent trial and other archival materials, we have re-examined the role of color blindness in the Lagerlunda incident and conclude that the accident cannot be attributed to color blindness alone. Yet the accident undoubtedly had a central role in the introduction of color vision testing by European and North American railroads. To persuade the railroad management to introduce universal screening of employees for color blindness, Holmgren used a dramatic coup de theatre and some unashamed subterfuge.

  13. Cross-sectional study to evaluate the associated factors with differences between city and districts secondary school students of the southeast of Spain (Murcia) for their adherence to the Mediterranean diet.

    PubMed

    Doménech-Asensi, Guillermo; Sánchez-Martínez, Álvaro; Ros-Berruezo, Gaspar

    2014-12-17

    Introducción: La “dieta Mediterránea” está reconocida como uno de los patrones dietéticos más saludables pero, incluso en los países mediterráneos, su seguimiento está disminuyendo. La adolescencia es un período crucial durante el cual se producen cambios en los hábitos alimentarios. Objetivos: El objetivo de este estudio fue evaluar la adherencia a la dieta Mediterránea (ADM) de los estudiantes de educación secundaria y evaluar las posibles diferencias entre los residentes en la ciudad o en las pedanías. Métodos: Se diseñó un estudio transversal con 379 estudiantes. Para evaluar la ADM se facilitó el cuestionario KIDMED. Los estudiantes se clasificaron de acuerdo al sexo y la residencia (ciudad o pedanía). Resultados: El índice de masa corporal (IMC) fue en global de 22.34 en hombres y 20.79 en mujeres (p.

  14. Biochemical characterization of a detergent-stable serine alkaline protease from Caldicoprobacter guelmensis.

    PubMed

    Bouacem, Khelifa; Bouanane-Darenfed, Amel; Laribi-Habchi, Hassiba; Elhoul, Mouna Ben; Hmida-Sayari, Aïda; Hacene, Hocine; Ollivier, Bernard; Fardeau, Marie-Laure; Jaouadi, Bassem; Bejar, Samir

    2015-11-01

    Caldicoprobacter guelmensis isolated from the hydrothermal hot spring of Guelma (Algeria) produced high amounts of extracellular thermostable serine alkaline protease (called SAPCG) (23,000U/mL). The latter was purified by ammonium sulphate precipitation, UNO Q-6 FPLC and Zorbex PSM 300 HPLC, and submitted to biochemical characterization assays. Matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF/MS) analysis revealed that the purified enzyme was a monomer, with a molecular mass of 55,824.19Da. The 19 N-terminal residue sequence of SAPCG showed high homology with those of microbial proteases. The enzyme was completely inhibited by phenylmethanesulfonyl fluoride (PMSF) and diiodopropyl fluorophosphates (DFP), which suggested its belonging to the serine protease family. It showed optimum protease activity at pH 10 and 70°C with casein as a substrate. The thermoactivity and thermostability of SAPCG were enhanced in the presence of 2mM Ca(2+). Its half-life times at 80 and 90°C were 180 and 60min, respectively. Interestingly, the SAPCG protease exhibited significant compatibility with iSiS and Persil, and wash performance analysis revealed that it could remove blood-stains effectively. Overall, SAPCG displayed a number of attractive properties that make it a promising candidate for future applications as an additive in detergent formulations.

  15. Nuevas observaciones de 3C10 con el VLA*: estudio de la expansión

    NASA Astrophysics Data System (ADS)

    Reynoso, E. M.; Moffett, D. A.:; Dubner, G. M.; Giacani, E. B.; Reynolds, S. P.; Goss, W. M.; Dickel, J.

    Se presentan nuevos resultados sobre la expansión del remanente de la supernova de Tycho a lo largo de un intervalo de 10.9 años, comparando nuevas observaciones tomadas con el VLA a 1375 y 1635 MHz durante 1994 y 1995, con observaciones previas realizadas entre 1983 y 1984 (Dickel y col. ~1991 AJ 101, 2151), usando las mismas configuraciones, anchos de banda, calibradores y tiempos de integración. El coeficiente de expansión se calcula para sectores radiales de 4o de ancho cada uno, ajustando la correlación cruzada de las derivadas de los perfiles promedio para cada época. A partir de la expansión medida, se estima el índice (parámetro de expansión) de la ley potencial R∝ tm como m≡ d ln R/d ln t . Este valor se compara con coeficientes teóricos para diferentes fases evolutivas de remanentes de supernova.

  16. [Treatment of attention deficit hyperactivity disorder in adults using virtual reality through a mindfulness programme].

    PubMed

    Serra-Pla, J F; Pozuelo, M; Richarte, V; Corrales, M; Ibanez, P; Bellina, M; Vidal, R; Calvo, E; Casas, M; Ramos-Quiroga, J A

    2017-02-24

    Introduccion. El trastorno por deficit de atencion/hiperactividad (TDAH) es un trastorno del neurodesarrollo altamente prevalente, presenta una elevada comorbilidad con sintomatologia afectiva y ansiosa, afecta a la funcionalidad de la persona que lo padece, tienen una baja adhesion terapeutica y genera unos costes sociales y personales elevados. El mindfulness es un tratamiento psicologico que ha demostrado ser eficaz para el TDAH. La realidad virtual es un tratamiento altamente utilizado en fobias y extendido a otras patologias con resultados positivos. Objetivo. Desarrollar el primer tratamiento con realidad virtual y mindfulness para el TDAH en la edad adulta, que suponga un aumento en la adhesion terapeutica y reduzca costes. Pacientes y metodos. Estudio piloto de 25 pacientes tratados con realidad virtual, mediante cuatro sesiones de 30 minutos, y 25 mediante psicoestimulantes. Se tomaran medidas de evaluacion pretratamiento, postratamiento y postratamiento a los 3 y 12 meses, tanto de TDAH como de depresion, ansiedad, funcionalidad y calidad de vida. Se analizaran posteriormente con el programa SPSS v. 20 y se realizara un ANOVA de grupos independientes para ver las diferencias entre tratamientos y un test-retest para detectar el mantenimiento de los cambios. Resultados y conclusiones. Es necesaria la utilizacion de tratamientos que sean efectivos, supongan una reduccion en los costes y un aumento en la adhesion terapeutica. El tratamiento con realidad virtual se plantea como una alternativa a los tratamientos clasicos, que sea mas breve y atractiva para los pacientes.

  17. [80 years of soial service in medicine].

    PubMed

    Hace 80 años, la Escuela de Medicina de la Universidad Nacional, en voz de su director, Gustavo Baz Prada, hizo una propuesta que pronto se convirtió en realidad y finalmente en norma, la que desde entonces se conoce como SS. Esta iniciativa se vio como una manera para que los estudiantes de medicina del último año retribuyeran a la sociedad una parte de lo que esta invirtió en su educación, consolidaran su formación mediante la exposición a las realidades de todos los días en los medios más necesitados, se pusieran a prueba sobre sus verdaderas capacidades para atender pacientes y participaran en la solución de un problema de atención sanitaria que en ese entonces era mucho más apremiante que ahora. Unos años después, los recién egresados de otras licenciaturas (pasantes) también fueron incorporados a esta estrategia y, al fin, se reconoció formalmente como una responsabilidad de las instituciones educativas. Las aportaciones del SS a la salud de las personas y a la formación de los médicos han sido incuestionables, y la experiencia humana que ha representado para quienes lo han vivido ha dejado marcas indelebles.

  18. [Kleine-Levin syndrome: differential diagnosis in recurrent encephalitic syndromes in adolescence].

    PubMed

    Duat-Rodriguez, A; Martinez-Albadalejo, I; Perez-Sebastian, I; Cantarin-Extremera, V; Hedrera-Fernandez, A; Garcia-Penas, J J

    2017-04-01

    Introduccion. El sindrome de Kleine-Levin es una enfermedad rara de causa desconocida que se caracteriza por episodios recurrentes autolimitados de hipersomnia acompañados de alteracion cognitiva y conductual. Entre los episodios, los pacientes tienen un patron de sueño y cognitivo normal. Casos clinicos. Se presentan tres pacientes de 14 años, dos chicos y una chica. Comenzaron tras un desencadenante (vacuna, una infeccion respiratoria por influenza B; en el caso de la chica, coincidian con la menstruacion). En el episodio agudo mostraban tendencia al sueño y en vigilia destacaba bradipsiquia, inquietud motora y gran labilidad emocional, con tendencia al llanto y necesidad de la presencia de los familiares. Presentaron una duracion aproximada de 10-15 dias y periodicidad mensual, y se mostraron asintomaticos entre los episodios. Los tres pacientes fueron valorados por pediatras, diagnosticados y tratados de encefalitis autoinmune. Solo uno cumplia la triada tipica de hipersomnia, hiperfagia e hipersexualidad, pero ninguno de los tres datos se habia recogido en la historia clinica inicial y la familia solo lo referia tras una anamnesis dirigida. Conclusiones. En el sindrome de Kleine-Levin, los sintomas neurologicos durante el cuadro agudo son aun mas frecuentes que los psiquiatricos. La tendencia al sueño y el hecho de que durante la vigilia no esten asintomaticos y se muestren lentos, apaticos, labiles e irascibles, situa en primer lugar la sospecha de sindrome encefalitico. Debemos tener presente esta entidad en encefalitis recurrentes de etiologia no filiada.

  19. [Chromosomal abnormalities in patients from Obstetrics and Gynaecology hospital].

    PubMed

    Hernández-Herrera, Ricardo Jorge; Rojas-Patlán, Luz; Garza-Pérez, Rosa María; Dávila-Rodríguez, Martha; Cortés-Gutiérrez, Elva Irene; García-Rodríguez, Emerson Odón; Hernández-Hernández, Roberto Raúl

    2014-01-01

    INTRODUCCIÓN: las anormalidades cromosómicas se presentan en 2 a 4 % de los recién nacidos y causan 20 % de las muertes en el primer año de vida. Su prevalencia es de uno por cada 500 a 1000 recién nacidos vivos. Pueden ser numéricas o estructurales y afectar a los cromosomas autosómicos o sexuales. Se presentan en 1 a 3 % de la población general y en 6 a 7 % de los individuos con anomalías congénitas. MÉTODOS: estudio descriptivo en el que se incluyeron todos los resultados citogenéticos de cariotipos tomados de sangre periférica de adultos y neonatos. Se evaluó la prevalencia de polimorfismos y alteraciones cromosómicas en derechohabientes del Hospital de Ginecoobstetricia 23 del Instituto Mexicano del Seguro Social, en Monterrey, Nuevo León.

  20. Prevalence and outcomes of heart transplantation in children with intellectual disability.

    PubMed

    Wightman, Aaron; Bartlett, Heather L; Zhao, Qianqian; Smith, Jodi M

    2017-03-01

    Heart transplantation in children with intellectual disability is a controversial issue. We sought to describe the prevalence and outcomes of heart transplantation in children with intellectual disability and hypothesized that recipients with intellectual disability have comparable short-term outcomes compared to recipients without intellectual disability. We performed a retrospective cohort analysis of children receiving a first heart-alone transplant in the UNOS STAR database from 2008 to 2013. Recipients with intellectual disability were compared to those without using chi-square tests. Kaplan-Meier curves were constructed for patient and graft survival. Cox proportional hazard models were used to estimate the association between intellectual disability and graft failure and patient survival. Over the study period, 107 children with intellectual disability underwent initial heart transplantation, accounting for 8.9% of first pediatric heart transplants (total=1204). There was no difference in the incidence of acute rejection between groups in the first year after transplant. Mean functional status scores at follow-up improved in both groups after transplantation, but tended to be lower among children with intellectual disability than children without. Log-rank tests did not suggest significant differences in graft survival between those with and without intellectual disability during the first 4 years following transplantation. Children with intellectual disability constitute a significant portion of total heart transplants with short-term outcomes comparable to children without intellectual disability.