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1

Due chiacchere sul piano affine A2 Abbiamo visto che `e possibile costruire uno spazio affine a partire da qualsiasi spazio vettoriale. Ad  

E-print Network

Due chiacchere sul piano affine A2 (F3) Abbiamo visto che `e possibile costruire uno spazio affine retta con due soli punti A1 (F2); ed un piano, A2 (F2), che contiene 4 punti e 6 rette (provare tre punti, in corrspondenza con gli elementi {0, 1, 2} del campo. Il piano affine su F3 ha quindi 9

Candilera, Maurizio

2

Due chiacchere sul piano affine A2 Abbiamo visto che `e possibile costruire uno spazio affine a partire da qualsiasi spazio vettoriale. Ad  

E-print Network

Due chiacchere sul piano affine A2 (F3) Abbiamo visto che `e possibile costruire uno spazio affine retta con due soli punti A1 (F2); ed un piano, A2 (F2), che contiene 4 punti e 6 rette (provare} del campo. Il piano affine su F3 ha quindi 9 punti che possiamo disporre come nel disegno qui a fianco

Candilera, Maurizio

3

SPAZIO DEI GENI, SPAZIO DEI GENOMI E DETERMINAZIONE DI UN GENOMA MINIMALE  

E-print Network

SPAZIO DEI GENI, SPAZIO DEI GENOMI E DETERMINAZIONE DI UN GENOMA MINIMALE Alessandra Carbone G ricerca di quale sia l'insieme minimale di geni che siano essenziali alla vita dell'organismo. Esperienze di mutagenesi aleatoria su batteri specifici hanno permesso di proporre un insieme di tali geni

Carbone, Alessandra

4

hurricane plan UNO HURRICANE PLAN  

E-print Network

hurricane plan #12;UNO HURRICANE PLAN TABLE OF CONTENTS INTRODUCTION....................................................................................................................................................... 1 I. HURRICANE EMERGENCY TEAMS Hurricane Emergency Implementation Team (HEIT)......................................... 2 PPoosstt

Li, X. Rong

5

AMRICA LATINA. PORTAL EUROPEO Una herramienta colectiva al servicio del americanismo europeo  

E-print Network

Consejo Europeo de Investigaciones Sociales de América Latina (CEISAL). Este seminario científico titulado continente y todas las asignaturas en Humanidades y Ciencias Sociales estaban representadas. Este seminario, a disposición de la comunidad científica a través una página Web común a las dos redes involucradas en este

Paris-Sud XI, Université de

6

4. Proiezioni del piano e dello spazio La visualizzazione di oggetti tridimensionali richiede di ottenere una vista piana dell'oggetto.  

E-print Network

4. Proiezioni del piano e dello spazio La visualizzazione di oggetti tridimensionali richiede di, viene applicata una proiezione che trasforma l'oggetto in una sua rappresentazione su un piano dello spazio, il piano di vista. Poi, sul piano di vista viene introdotto un sistema di coordinate cartesiane e

Perotti, Alessandro

7

Los sistemas de bienestar europeos tras la crisis económica  

Microsoft Academic Search

El presente trabajo analiza la situación del welfare en el Viejo Continente tras el “crack” financiero de 2007. Se analizan las Edades del Bienestar europeo prestando particular atención a las principales transformaciones de las políticas sociales y las diversas trayectorias seguidas por los regímenes del bienestar (welfare regimes), los cuales son conceptualizados y caracterizados con el fin de mostrar las

Luis Moreno; Eloísa del Pino; Pau Marí-Klose; Francisco Javier Moreno-Fuentes

2014-01-01

8

Aerodynamic characteristics of the Fiat UNO car  

SciTech Connect

The purpose of this article is to describe the work conducted in the aerodynamic field throughout the 4-year development and engineering time span required by the project of the UNO car. A description is given of all the parametric studies carried out. Through these studies two types of cars at present in production were defined and the characteristics of a possible future sports version laid down. A movable device, to be fitted in the back window, was also set up and patented. When actuated it reduces soiling of back window. A description is also provided of the measurements made in the car flow field and some considerations are outlined about the method applied. This method is still in development phase but it already permits some considerations and in-depth investigations to be made on the vehicle wake.

Costelli, A.F.

1984-01-01

9

UNO Disability Services Prospective Learning Disability Release Student Packet  

E-print Network

: ________________________________________________________________________________________ Date of Birth Signature _____________________________ Witness Signature _____________________________ Date #12;UNO-IV): ____________________________________________________________ 2. Level of Severity (Circle one): Mild Moderate Severe 3. Date of Diagnosis

Li, X. Rong

10

Tumori: identificato ruolo proteina nello sviluppo del Glioblastoma Uno studio nato dalla collaborazione tra Universit Statale di Milano e Istituto Europeo di  

E-print Network

Cancer Institute, ha individuato il ruolo della proteina CLIC1 (Chloride Intracellular channel 1) nello parte delle cellule tumorali, non riuscendo ad eliminare le Cancer Stem Cells (CSCs), ovvero la frazione in condizioni di stress ossidativo. In questo nuovo studio è stato dimostrato che la riduzione dell

De Cindio, Fiorella

11

Breve introduzione al progetto Europeo per il calcolo avanzato in ambito fusionistico: la task  

E-print Network

· Raggiungere in laboratorio le condizioni necessarie per accendere una miscela di isotopi dell) -... · Problemi di fisica: -equilibrio -riscaldamento -isolamento termico: oconfinamento inerziale oconfinamentoBreve introduzione al progetto Europeo per il calcolo avanzato in ambito fusionistico: la task

Vlad, Gregorio

12

UNO MECHANICAL ENGINEERING 2013 -2014 MATH 2111 (5)  

E-print Network

UNO MECHANICAL ENGINEERING 2013 - 2014 FRESHMAN FALL SP Calculus MATH 2111 (5) SOPHOMORE FALL SP JUNIOR FALL SP SENIOR FALL SP 15 18 18 14 17 15 15 15 Prerequisite Credit/Registration Math/Sci Mech/Mater Therm/Fluid Calculus MATH 2112 (5) Calculus of Sev Var MATH 2115 (3) Diff Eq MATH 2221 (3) Engr Anal

Kulp, Mark

13

Fontenot, UNO and Vlosky, LSU "Exploratory Study of Internet  

E-print Network

Fontenot, UNO and Vlosky, LSU "Exploratory Study of Internet Buyer-Seller Relationships" Renée J and Vlosky, LSU Purpose of Research x Explore how the Internet modifies the way that companies do business specifically with regards to changes in buyer-seller relationships. x Define basic elements of Internet

14

EL ESPACIO EUROPEO DE EDUCACIÓN SUPERIOR (EEES) Y NUEVO ROL DEL ESTUDIANTE UNIVERSITARIO  

Microsoft Academic Search

El Espacio Europeo de Educación Superior (EEES) está centrado especialmente en el desarrollo de competencias transversales y específicas – online y offline - para la profesión y para el desarrollo del proyecto vital de los estudiantes universitarios que deciden continuar estudiando después de la formación obligatoria. Además de los cambios que deben producirse en los roles a desempeñar por el

José Alberto Martínez González

2010-01-01

15

UNO Web Strategy !"#$ ! Web Strategy, a division of the Office of Communications, Public Relations and Marketing  

E-print Network

UNO Web Strategy !"#$ ! Web Strategy, a division of the Office.4 #12;UNO Web Strategy !"#$ ! Web Strategy, a division of the Office This is a Service Agreement (SA) between the service providers: · Division of Web Strategy

Kulp, Mark

16

UNO is hard, even for a single player Erik D. Demaine1  

E-print Network

, Takeaki UNO3 , and Yushi UNO4 1 MIT Computer Science and Artificial Intelligence Laboratory, 32 Vassar St, Amazons, Chess, Othello, Go, Poker, and so on. Recently, this field is sometimes called `algorithmic

Demaine, Erik

17

Central and South America GPS geodesy - CASA Uno  

NASA Technical Reports Server (NTRS)

In January 1988, scientists from over 25 organizations in 13 countries and territories cooperated in the largest GPS campaign in the world to date. A total of 43 GPS receivers collected approximately 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. Scientific goals of the project include measurements of strain in the northern Andes, subduction rates for the Cocos and Nazca plates beneath Central and South America, and relative motion between the Caribbean plate and South America. A second set of measurements are planned in 1991 and should provide preliminary estimates of crustal deformation and plate motion rates in the region.

Kellogg, James N.; Dixon, Timothy H.

1990-01-01

18

UNO PRE-OCCUPATIONAL THERAPY ADVISING CHECKLIST Advisor: Dr. Stephen Gasior Office: CC 207 Phone: 504-280-6196 Email: sgasior@uno.edu  

E-print Network

UNO PRE-OCCUPATIONAL THERAPY ADVISING CHECKLIST Advisor: Dr. Stephen Gasior Office: CC 207 Phone the student for admission into the Master of Occupational Therapy (MOT) Program offered by the Department of Occupational Therapy, School of Allied Health Professions, LSU Health Sciences Center. To be eligible

Li, X. Rong

19

UNO PRE-OCCUPATIONAL THERAPY ADVISING CHECKLIST Advisor: Dr. Jacqueline Nesbit Office: BIO 230 Phone: 504-280-6478 Email: jbnesbit@uno.edu  

E-print Network

UNO PRE-OCCUPATIONAL THERAPY ADVISING CHECKLIST Advisor: Dr. Jacqueline Nesbit Office: BIO 230 the student for admission into the Master of Occupational Therapy (MOT) Program offered by the Department of Occupational Therapy, School of Allied Health Professions, LSU Health Sciences Center. To be eligible

Li, X. Rong

20

UNO is hard, even for a single player Erik D. Demaine 1 , Martin L. Demaine 1 , Ryuhei Uehara 2 ,  

E-print Network

, Takeaki Uno 3 , and Yushi Uno 4 1 MIT Computer Science and Artificial Intelligence Laboratory, 32 Vassar of interests include Nim, Hex, Peg Solitaire, Tetris, Geography, Amazons, Chess, Othello, Go, Poker, and so on

Demaine, Erik

21

Checklist (or Guidance) For UNO Employees in Responding to a Report of Sexual Assault  

E-print Network

Checklist (or Guidance) For UNO Employees in Responding to a Report of Sexual Assault In the event and STD/pregnancy testing _____ University Hospital isthe only hospital in New Orleans certified has trained counselors to assist at Counseling Services (UC 226) during normal business hours. Assist

Li, X. Rong

22

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

ERIC Educational Resources Information Center

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…

Hunnicutt, David; Davis, Joe

1989-01-01

23

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

ERIC Educational Resources Information Center

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,…

Dunac, Patricia S.; Demi, Kadir

2013-01-01

24

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

ERIC Educational Resources Information Center

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…

Feith, David

2013-01-01

25

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

ERIC Educational Resources Information Center

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…

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

26

Efficacia della fisioterapia per pazienti affetti da ernia discale: uno studio osservazionale  

Microsoft Academic Search

Fino ad alcuni anni fa, la lombosciatalgia dovuta a un’ernia discale radiologicamente comprovata era un’indicazione sicura per la rimozione chirurgica dell’ernia (discectomia), ma oggi non è più così e spesso i pazienti affetti da questo problema vengono indirizzati verso la riabilitazione fisioterapica. Ma la fisioterapia è veramente efficace? Mostriamo qui i risultati di uno studio prospettico osservazionale su un campione

Alessandra Giovagnoli; Johnny Marzialetti

2010-01-01

27

Stacking up against alternative conceptions: using Uno cards to introduce discourse and argumentation  

NASA Astrophysics Data System (ADS)

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, using discourse (Erduran et al 2004 Sci. Educ. 88 915-33) and through a 5E learning cycle (Bybee 1997 Achieving Scientific Literacy: From Purposes to Practices (Portsmouth, NH: Heinemann Educational Books)). The activity helped students develop a deeper understanding of the energy transformation among and between different sources. Students experienced a conceptual gain in their ways of thinking, in contrast to traditional teaching and learning practices. The collaboration and interaction between teacher-student(s) and between students fostered an environment where they became co-constructors of knowledge.

Dunac, Patricia S.; Demir, Kadir

2013-11-01

28

Lab 2: Blinkie Lab This lab introduces the Arduino Uno as students will need to use the Arduino to control  

E-print Network

), and resistance (R) can be defined by Ohm's Law. The voltage drop needed to keep the charges moving throughLab 2: Blinkie Lab Objectives This lab introduces the Arduino Uno as students will need to use, a battery contains electrons waiting to be used. Like the mass, electrons will flow from a high potential

Wedeward, Kevin

29

August 2014 Catalog | University of New Orleans http://www.uno.edu/registrar/catalog/1415catalog/index.aspx[8/21/2014 9:35:18 AM  

E-print Network

Programs Administrators Admissions Bachelor of Interdisciplinary Studies The Campus Campus Map College NOW DIRECTORY EMPLOYMENT LIBRARY UNO CALENDAR Non-Discrimination Statement Emergency PreparednessAugust 2014 Catalog | University of New Orleans http://www.uno.edu/registrar/catalog/1415catalog

Li, X. Rong

30

UNO is hard, even for a single player6,66 Erik D. Demaine1, Martin L. Demaine1, Nicholas J. A. Harveyb,  

E-print Network

. Harveyb, Ryuhei Ueharac, Takeaki Unod, Yushi Unoe, a MIT Computer Science and Artificial Intelligence, Amazons, Chess, Othello, Go, Poker, and so on. Recently, this field is called `algorithmic combinatorial

Demaine, Erik

31

Outcomes of simultaneous heart-kidney transplant in the US: a retrospective analysis using OPTN/UNOS data.  

PubMed

Simultaneous heart-kidney transplantation (SHK) remains uncommon in the US. We examined outcomes of SHK compared to heart transplant alone (HTA) and deceased donor kidney transplant (DDKT). Data from OPTN/UNOS heart and kidney data bases were used to identify 16,710 HTA, 263 SHK transplants and 68,833 DDK transplants between 1998 and 2007. Outcomes included patient survival (PS), acute cardiac and renal rejection and renal graft survival (rGS). The adjusted risk of death was 44% lower with SHK compared to HTA. Over half of SHK were performed in cases where pretransplant dialysis was not initiated. In these cases, there was no significant difference in the risk of death between SHK and HTA (HR 1.01; 95% CI 0.67-1.50). Recipients of SHK had worse 1-year rGS and PS and had a higher relative risk of overall renal graft loss compared to DDKT recipients. One-year rates of cardiac (14.5%) and renal (6.5%) rejection were lower in SHK compared to HTA and DDKT, respectively. Recipients of SHK had a lower adjusted risk of death compared to HTA recipients, particularly in patients who required pretransplant dialysis. These data suggest that SHK should be considered in heart transplant candidates with renal failure requiring dialysis, whereas the utility of SHK in cases of renal failure not requiring dialysis warrants further study. PMID:19344470

Gill, J; Shah, T; Hristea, I; Chavalitdhamrong, D; Anastasi, B; Takemoto, S K; Bunnapradist, S

2009-04-01

32

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

NASA Astrophysics Data System (ADS)

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.

Hall, F. R.; Buxton, C.

2002-05-01

33

Pediatric liver transplant for urea cycle disorders and organic acidemias: United Network for Organ Sharing (UNOS) data 2002–2012  

PubMed Central

Background Decision-making about liver transplant is unique in children with urea cycle disorders (UCD) and organic acidemias (OA) because of immediate high priority on the waiting list, not related to severity of disease. There is limited national outcomes data on which to base recommendations about liver transplant for UCD or OA. Methods Retrospective analysis of UNOS data on liver recipients <18 years, transplanted 2002–12. Repeat transplants excluded. Results 5.4% of pediatric liver transplants were liver-only for UCD/OA. UCD/OA increased from 4.3% of transplants in 2002–05 to 7.4% in 2010–12 (p<0.0001). 96% were deceased donor. Of these, 59% were transplanted at <2 years of age. Graft survival improved as age at transplant increased (p=0.04). By 5 years post-transplant, graft survival was 78% for children <2 years at transplant and 88% for those ?2 years (p=0.06). Vascular thrombosis caused 45% of graft losses; 65% in children <2 years. Patient survival also improved as age at transplant increased; 5-year patient survival was 88% in UCD/OA children <2 years at transplant and 99% in those ?2 years (p=0.006). At last-follow up (54 ± 34.4 months), children transplanted for UCD/OA were more likely to have cognitive and motor delay than those transplanted for other indications. Cognitive and motor delay in UCD/OA children were associated with metabolic disorder but not predicted by age or weight at transplant, gender, ethnicity, split vs. whole liver, or hospitalization at transplant in univariate and multivariate analysis. Conclusion Most liver transplants for UCD/OA occur in early childhood. Further research is needed on the benefits of early transplant for UCD/OA, as younger age may increase post-transplant morbidity. PMID:24136671

Perito, Emily R.; Rhee, Sue; Roberts, John Paul; Rosenthal, Philip

2013-01-01

34

Unione Europea Fondo Sociale Europeo  

E-print Network

Superiore e Universitaria" Experimental simulation of pre-eruptive conditions of "yellow pumice-eruptive conditions of "yellow pumice"-Stromboli (Aeolian arc)-Italy PhD thesis by: Tutor: Ida Di Carlo Dott. S pumice"-Stromboli INDEX INTRODUCTION 1 1. VOLCANOLOGICAL BACKGROUND 4 1.1 The Aeolian Archipelago

Paris-Sud XI, Université de

35

University of New Orleans Financial Conflict of Interest (FCOI) Information Digest The purpose of this Document is to provide to UNO researchers an overview of the 2011 revised U.S. Public Health Service (PHS) FCOI regulation  

E-print Network

sponsored research, Investigators must also be formally trained on the policy through the UNO Office of Research and Sponsored Programs training program. Resources for additional information on the regulation, state, or local government agency, an Institution of higher education, an academic teaching hospital

Li, X. Rong

36

The impact of the UNOS mandatory sharing policy on recipients of the black and white races--experience at a single renal transplant center.  

PubMed

The impact of the United Network for Organ Sharing mandatory sharing policy on a large transplant center procuring kidneys primarily from caucasians while serving a pool of prospective recipients composed mainly of blacks is described. This policy requires that all 6-antigen-matched and phenotypically identical donor kidneys be shipped to the appropriately matched recipients. The study consisted of 49 kidneys from 25 cadaveric donors; one kidney was unusable. In general, the 33 recipients of the mandatorily shared kidneys were caucasian (94%), unsensitized (70%), and first-time transplants (73%). Allograft survival for the 24 first-time recipients was 100% (mean graft survival = 11.3 months). Of the 9 regraft kidneys, 2 have failed (mean graft survival = 11.9 months) due to chronic rejection. In comparison, the 16 paired kidneys transplanted into non-6-antigen-matched recipients exhibited a 1-year graft survival of 80% versus 92% for the 33 recipients of mandatorily shared kidneys (P = 0.01). These 16 recipients were composed of more blacks (38%), fewer regrafts (6%), and most were unsensitized (75%). All 25 cadaveric donors were caucasians with very common HLA types. Thus, kidneys provided by the UNOS mandatory sharing policy had excellent allograft survival, and the recipients were largely unsensitized caucasians receiving their first kidney. The low number of blacks receiving allografts under this policy may be due to two factors. First, the histocompatibility differences between black recipients and the primarily caucasian cadaveric donor pool limit the number of kidneys available to blacks. Secondly, blacks do not have access to the best-matched kidneys, in part due to few black donors, their best source for well-matched kidneys. Thus, the mandatory sharing program is of clear benefit to the recipients of these well-matched kidneys; however, for a local program servicing a waiting list composed of 64% blacks the policy has been of limited value. In contrast, over 50% of local cadaveric transplants are into black recipients in a waiting time of 197 days, one third the national average for blacks. In conclusion, this study supports efforts to improve graft survival through matching but emphasizes the need to broaden our efforts in all areas of research and organ procurement to serve the entire recipient population, regardless of race. PMID:1566342

Barger, B; Shroyer, T W; Hudson, S L; Deierhoi, M H; Barber, W H; Curtis, J J; Phillips, M G; Julian, B A; Gaston, R S; Laskow, D A

1992-04-01

37

ESERCIZI di Fondamenti di Antenne -Appunti dalle lezioni del Prof. F.S. Marzano ESERCIZI di FONDAMENTI DI ANTENNE  

E-print Network

Esercizio C.1: POTENZA TRASMESSA IN UN COLLEGAMENTO SPAZIALE Due satelliti sono separati in spazio vuoto da frequenza portante di 2.5 GHz. Il ricevitore di uno dei satelliti richiede in ingresso una potenza di 20 dBp. Nell'ipotesi di allineamento tra le 2 antenne ed efficienze di antenna unitarie, quale potenza deve

Marzano, Frank Silvio

38

UNO-CERF 9-10-12 UNO Coastal Education and Research Facility  

E-print Network

Louisiana Coastal Land Loss and Restoration Water Quality Coastal Lines of Defense Mapping and GPS/ GIS on geology of Louisiana Powerpoint presentation on coastal land loss and restoration Field Trip Fee Schedule the following types of field trips: 1. Land based: Land-based field trips include sampling from the dock

Kulp, Mark

39

Ex uno plures: molecular designs for embryonic pluripotency.  

PubMed

Pluripotent cells in embryos are situated near the apex of the hierarchy of developmental potential. They are capable of generating all cell types of the mammalian body proper. Therefore, they are the exemplar of stem cells. In vivo, pluripotent cells exist transiently and become expended within a few days of their establishment. Yet, when explanted into artificial culture conditions, they can be indefinitely propagated in vitro as pluripotent stem cell lines. A host of transcription factors and regulatory genes are now known to underpin the pluripotent state. Nonetheless, how pluripotent cells are equipped with their vast multilineage differentiation potential remains elusive. Consensus holds that pluripotency transcription factors prevent differentiation by inhibiting the expression of differentiation genes. However, this does not explain the developmental potential of pluripotent cells. We have presented another emergent perspective, namely, that pluripotency factors function as lineage specifiers that enable pluripotent cells to differentiate into specific lineages, therefore endowing pluripotent cells with their multilineage potential. Here we provide a comprehensive overview of the developmental biology, transcription factors, and extrinsic signaling associated with pluripotent cells, and their accompanying subtypes, in vitro heterogeneity and chromatin states. Although much has been learned since the appreciation of mammalian pluripotency in the 1950s and the derivation of embryonic stem cell lines in 1981, we will specifically emphasize what currently remains unclear. However, the view that pluripotency factors capacitate differentiation, recently corroborated by experimental evidence, might perhaps address the long-standing question of how pluripotent cells are endowed with their multilineage differentiation potential. PMID:25540144

Loh, Kyle M; Lim, Bing; Ang, Lay Teng

2015-01-01

40

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

PubMed

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. PMID:18097837

Frosch, James Peter

2007-01-01

41

The UNO Aviation Monograph Series: The Airline Quality Rating 1997  

NASA Technical Reports Server (NTRS)

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.

Bowen, Brent D.; Headley, Dean E.

1997-01-01

42

The UNO Aviation Monograph Series: The Airline Quality Rating 1998  

NASA Technical Reports Server (NTRS)

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.

Bowen, Brent D.; Headley, Dean E.

1998-01-01

43

UNO Counseling and Career Center Counseling Services HPC 112 504.280.6683 counserv.uno.edu  

E-print Network

Dining Etiquette In recent years, more and more employers have begun conducting second or third round by not knowing proper etiquette. Before you go to a restaurant interview, you should brush up on your dining etiquette. Don't let the subject intimidate you -- etiquette is simply a set of rules that serve as tools

Li, X. Rong

44

GSM: Global System for Mobile communications  

E-print Network

GSM: Global System for Mobile communications Marco Moretti Università di Pisa #12;Sommario Introduzione Architettura di rete Tecnologia radio Canali GSM Procedure #12;Introduzione #12;Introduzione GSM è a livello Europeo GSM nasce come open standard architecure (OSA), seguendo il modello di Internet. Non è uno

Abrardo, Andrea

45

Utopia y realidad en el teatro latinoamericano  

E-print Network

SUMMER 1980 23 Utopía y realidad en. el teatro latinoamericano JOSÉ MONLEÓN Hasta hace muy poco tiempo, el estudio del teatro de los países de América Latina solía abordarse con los mismos criterios empleados para el análisis del teatro europeo..., últimamente, el latinoamericano se enorgullece .... A menudo lo latinoamericano es, en Latinoamérica, una utopía .... Este juicio señala con nitidez uno de los problemas del movimiento teatral que ahora estudiamos. El hecho de que la reciente historia de...

Monleó n, José

1980-07-01

46

UNO PRE-PHYSICAL THERAPY ADVISING CHECKLIST Advisor: Dr. Jacqueline Nesbit Office: BIO 230 Phone: 504-280-6478 Email: jbnesbit@uno.edu  

E-print Network

__________ BIOS 1303 Human Anatomy & Phys 3 __________ BIOS 1301* Human Anatomy & Phys Lab 1 __________ BIOS 1313 Human Anatomy & Phys II 3 __________ BIOS 1311* Human Anatomy & Phys Lab 1 __________ ADVANCED BIOS** 3

Kulp, Mark

47

Programa de Estudios Hispnicos y Europeos Hispanic and European Studies Program-Universitat Pompeu Fabra  

E-print Network

requerido: · Asistencia a clases · Debate de las lecturas señaladas por el profesor · Trabajo en equipo de que estén certificadas por un informe medico o una emergencia familiar. Cualquier otro motivo

Geffner, Hector

48

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

PubMed Central

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

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

49

REGLAMENTO (CE) No 451/2008 DEL PARLAMENTO EUROPEO Y DEL CONSEJO  

E-print Network

, comercio exterior y transporte. (5) Una CPA actualizada es fundamental para apoyar el esfuerzo actual de la clasificaciones nacionales categorías adicionales basadas en la CPA. (10) La comparabilidad internacional de las

Fraguela, Basilio B.

50

Mejora docente y adaptacin al Espacio Europeo de Educacin Superior Tabla II. Principales resultados conseguidos  

E-print Network

) entre las instituciones miembros del CBUC (17/10/2011); Interface renovada y mejorada del repositorio institucional (e-Repositorio) (21/12/2011); Versión de la web Biblioteca y TIC para dispositivos móviles (24

Geffner, Hector

51

Mejora docente y adaptacin al Espacio Europeo de Educacin Superior Tabla IV. Hitos Futuros  

E-print Network

institucional En progreso Repositorio institucional 15. Mejora docente y adaptación al EEES Creación del Centro progreso Repositorios digitales consorciados 12. Mejora docente y adaptación al EEES Completar la. Mejora docente y adaptación al EEES Aumentar el porcentaje de documentos incorporados al repositorio

Geffner, Hector

52

Informática y medicina unidas en el Espacio Europeo de Educación Superior  

Microsoft Academic Search

Palabras Clave: EEES, Planificación curricular, Informática médica Resumen La informática médica es una disciplina que ha evolucionado notoriamente en los últimos años desembocando en varias líneas de interés y acercando áreas, tan aparentemente distantes, como las tecnologías de la información y la medicina. Buena muestra de ello es el nacimiento de diferentes grupos de investigación y formación, así como eventos

J. Martín Moreno; V. J. Berenguer Miralles; D. Ruiz Fernández; A. Soriano Payá

53

Programa de Estudios Hispnicos y Europeos Hispanic and European Studies Program-Universitat Pompeu Fabra  

E-print Network

créditos -5 ECTS Pre-requisitos: El curso está dirigido a estudiantes interesados en la política española, a los sistemas de creencias y el comportamiento político en el país, incluyendo la violencia política y actual sistema político español. Objetivos docentes: Al final del curso, los estudiantes serán capaces de

Geffner, Hector

54

Comunicato stampa Uno sguardo in anteprima sulla tre giorni pi attesa dal mondo ICT  

E-print Network

Trento (Dipartimento di Ingegneria e Scienza dell'Informazione), Trento Rise e Fondazione Bruno Kessler'Informazione dell'Università di Trento, Dario Petri, e dal direttore del Centro IT della Fondazione Bruno Kessler Dipartimento di Ingegneria e Scienza dell'Informazione , Trento Rise e la Fondazione Bruno Kessler. Proprio

55

Lo uno y lo múltiple: Farsa e incesto en Quíntuples de Sánchez  

E-print Network

permite igualmente explorar la capacidad de la farsa de parodiarse a sí misma, de desmantelar sus propios rituales o esquemas. La complejidad dramática y genérica de Quintuples (1984) del puertorriqueño Luis Rafael Sánchez, sugiere precisamente el... farsa (284). La pieza de Sánchez trata precisamente de la familia Morrison, compuesta por el Gran Divo Papá Morrison y sus quintuples Dafne, Baby, Bianca, Mandrake y Carlota, que ha sido invitada a participar en el Congreso de Asuntos de la Familia...

Melé ndez, Priscilla

1992-10-01

56

Comunicato Stampa Raggi X e UV per scoprire tutti i segreti di uno Stradivari  

E-print Network

dal Laboratorio Arvedi dell'Università degli Studi di Pavia, in collaborazione con il Centro Universitario per le Datazioni dell'Università di Milano-Bicocca e il Dipartimento di Fisica dell dei materiali costitutivi della vernice e delle decorazioni. Il Laboratorio Arvedi di Pavia infatti

De Cindio, Fiorella

57

Comunità virtuale in aula: uno strumento innovativo per l'eLearning  

Microsoft Academic Search

Il lavoro introduce un'architettura didattica basata sulla scelta di adottare strumenti ICT per complementare le modalità tradizionali di gestione dei processi formativi mediante un sistema di comunità virtuale moderata e realizzata in aula. Vengono presentate le caratteristic he principali del modello concettuale che ha portato all'implementazione di tale architettura in un sistema web-based e i risultati di un'esperienza dell'impiego di

L. Mari; D. Sciuto; P. Faverio; R. Hodges; C. Mari; D. Restelli

58

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

NASA Technical Reports Server (NTRS)

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.

Carrico, John S.; Schaaf, Michaela M.

1998-01-01

59

Previamente... Vemos a la mutacin de un alelo A a uno a  

E-print Network

letales En los gametos de forma particular los que no se recombinan sobreviven, los demás cuando se Tasa de Mutación letal espontánea en Drosophila Color de pelaje de los ratones Tasa de mutación de alozimas Tasa de mutación de polipéptidos en humanos #12;Mutación letal en Drosophila Timofeef

60

Ex uno plures: clonal reinforcement drives evolution of a simple microbial community.  

PubMed

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

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

2014-06-01

61

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

ERIC Educational Resources Information Center

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 following…

Bowen, Brent, Ed.

62

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

ERIC Educational Resources Information Center

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 following…

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.

63

Bol. Asoc. Herpetol. Esp. (2008) 192 El Mediterrneo Occidental constituye uno  

E-print Network

transportando especies animales y vegetales en un proceso que viene a complicar el panorama de la biogeografía Dep. Biología Animal. Fac. Ciencias. Univ. Granada. 18071 Granada. España. 2 Dép. Biologie. Fac

Carranza, Salvador

2008-01-01

64

UNO Computer Science Department Non-Thesis Comprehensive Examination Policy for Master's Program  

E-print Network

Version 1.0 03-Nov-02 Each student who chooses the non-thesis option has to pass a comprehensive be repeated, but cannot be repeated more than once. Hence, a degree is not awarded to a student who fails requirements to the failing student, including English developmental or writing courses, before the exam can

Li, X. Rong

65

ANUARIO AMERICANISTA EUROPEO, 22213872, N 11, 2013, Seccin Tema Central p. 1129 11 Recibido 20131011 Aceptado 20131227  

E-print Network

invites us to rethink the gender category in the analysis of migration from Latin America to Europe realidades preexistentes. Abstract: The gender category in light of kinship in the analysis gender is constructed in its interconnection with kinship and other social differentiations

Paris-Sud XI, Université de

66

ANUARIO AMERICANISTA EUROPEO,22213872, N 11, 2013, Seccin Tema Central p. 149164 149 Recibido 20131001 Aceptado 20140205  

E-print Network

procesos migratorios como desarrollo tanto para los países de acogida como para los países de origen. The interpretation by the political class of states receiving migrants, however, continues to maintain énfasis en la contribución de las remesas para los países de origen; sin embargo, el propósito del

Boyer, Edmond

67

ANUARIO AMERICANISTA EUROPEO, 22213872, N 11, 2013, Seccin Tema Central p. 7191 71 Recibido 20130805 Aceptado 20130127  

E-print Network

trabajo se sustenta en una metodología cualitativa, basada en entrevistas en profundidad con, paid domestic service, labour trajectories, Argentina * Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) con lugar de trabajo en el Centro de Investigaciones y Estudios sobre

Paris-Sud XI, Université de

68

ATTENTION GRADUATES The following information has been provided by the photographer who will be at all of UNO's graduation  

E-print Network

hours, please provide us with a valid e-mail address on your commencement reader card. Grad and email address on a photo card. In some cases this card is also used to call your name from as you cross within 18 hours of your ceremony if we receive your email address on the card you complete at or prior

Kulp, Mark

69

"Lo ltimo que uno sabe es por donde empezar" from Penses (1660) by Blaise Pascal (1623-1662)  

E-print Network

are summed up. Also the publications generated from this work and the ideas that can be developed in the future are listed below. Finally, some recommendations about how to build a power estimation system Xilinx families (Virtex, Virtex-E and Virtex-II) in order to show that the statistical technique works

Todorovich, Elías

70

Cautivas cristianas y enamorados turcos: el tratamiento pico de unos infortunios nuticos en la guerra de Chipre*1  

E-print Network

, poco después de la batalla de Nicosia en Chipre, cuando la amenaza turca sobre el Mediterráneo-López. #12;2 modo de amenaza para exigir la rendición de esta segunda plaza fuerte veneciana de la isla

Paris-Sud XI, Université de

71

Proceedings of the Annual Nebraska Aviation Education Association Conference (1st, Omaha, Nebraska, January 1994). The UNO Aviation Monograph Series.  

ERIC Educational Resources Information Center

This collection of six papers constitutes the proceedings of the First Annual Conference of the Nebraska Aviation Education Association. These papers present many issues that the discipline of aviation is confronting, including those related to the aviation industry. The papers included are as follows: (1) "Using the DAT for Selection of Pilot…

Crehan, James E., Ed.

72

Double- and single-lung transplantation: an analysis of twenty years of OPTN/UNOS registry data.  

PubMed

1. Within the past 2 decades, the annual number of lung transplants, especially double-lung transplants, has steadily increased every year and exceeded 1,400 in the last 2 years. 2. Overall 1-, 5-, and 10-year graft survival rates for double-lung transplant recipients were 79.5%, 50.6%, and 30.4% respectively; those for left-lung transplant recipients were 76.0%, 41.8%, and 17.1%; and for right-lung transplant recipients were 78.3%, 44.8%, and 19.2%. 3. The improvement in long-term graft survival in the most recent transplant era was mainly due to improved one-year survival, more precisely, due to the increased early outcome within the first 2-3 months after transplantation. 4. A negative association between HLA mismatch and graft survival is statistically significant in both double and left-lung transplants. 5. Female COPD and ATD single-lung recipients had high long-term graft survival when they received right-lung transplants. While for male single-lung recipients, CF patients had better graft survival when they received left lung transplants; but PPH patients had higher graft survival when receiving right-lung transplants. This association between recipient gender and/or different original diseases and graft survival requires further investigation. PMID:18642450

Cai, Junchao

2007-01-01

73

¿Está de acuerdo nuestra conducta ante el nódulo tiroideo y cáncer diferenciado de tiroides con la guía norteamericana y el consenso europeo?  

Microsoft Academic Search

IntroductionThe aim of this study was to assess the approaches of specialists in Spain to patients with thyroid nodules and differentiated thyroid carcinoma and to compare them with the American guideline and European consensus.

José Manuel Gómez Sáez

2010-01-01

74

ANUARIO AMERICANISTA EUROPEO, 2221-3872, N 10, 2012, Seccin Fondos p. 15-26 15 Recibido 2012-10-05 Aceptado 2010-12-24  

E-print Network

miembros de ella de los que quedaban al margen. El 12 de julio de 1733, se dota de un carácter más oficial 15 de julio de 1738, consolida de manera definitiva la institución. La dota de la denominación Real y

Paris-Sud XI, Université de

75

INNOVACIÓN EN EL PROCESO METODOLÓGICO EN LA DOCENCIA DEL DISEÑO INDUSTRIAL COMO RESPUESTA AL NUEVO ESPACIO EUROPEO DE EDUCACIÓN SUPERIOR MEDIANTE LA APLICACIÓN DE TECNOLOGÍA MOODLE  

Microsoft Academic Search

The digital technologies of communication, specially Internet, represent at the present time one of the greater challenges than it has the university education within the new European Space, altering to the forms of communication between professor and student, as well as the processes teaching -learning. The present work appears with the objective to present the carried out experience in the

MARTIN AMUNDARAIN; APERRIBAY MAIZTEGUI; GARMENDIA MUGIKA; PEREZ MANSO; ALBISUA GARMENDIA; SAN MARTIN DIAZ; José Ignacio; José Javier

76

ANUARIO AMERICANISTA EUROPEO, 2221-3872, N 10, 2012, Seccin Tema Central p. 91-116 91 Recibido 2012-07-24 Aceptado 2012-09-12  

E-print Network

, este estatus les permite concretar sus aspiraciones globales. En una segunda parte, analizamos el caso facto la región en su expansión mundial. Concluimos que la utilización de la región para cumplir's International Project (2003-2010): Regional Intentions and Global Projection via South-South Relations. The main

Boyer, Edmond

77

¿Quiénes y qué pueden hacer en salud pública? Las competencias profesionales como base para la elaboración de programas en el Espacio Europeo de Educación Superior  

Microsoft Academic Search

ObjectiveTo conform a frame of reference for the organization of the public health teaching in university degrees in Spain, in agreement with the directives of the European Space for Higher Education.

Mari Carmen Davó; Diana Gil-González; Carmen Vives-Cases; Carlos Álvarez-Dardet; Elena Ronda; Rocío Ortiz-Moncada; María Teresa Ruiz-Cantero

2009-01-01

78

ANUARIO AMERICANISTA EUROPEO, 2221-3872, N 11, 2013, Seccin Tema Central p. 1-9 1 Gnero y Migraciones: Nuevas reconfiguraciones y  

E-print Network

subyacentes en los países de origen y destino, y las redes sociales (Lee 1966). No obstante, la centralidad consagrada al papel de las redes sociales en la migratorios son un campo consolidado en las ciencias sociales, lejos del trabajo

Boyer, Edmond

79

La UA se convierte en el primer campus cardioprotegido de Espaa Con la inauguracin de las torres desfibriladoras en el Da Europeo para la Prevencin del Riesgo  

E-print Network

, "una alteración que sólo se puede revertir si se tiene cerca un desfibrilador y los conocimientos el uso de los desfibriladores las 24 horas del día. Hábitos saludables Desde las 10:00 a las 18 horas

Escolano, Francisco

80

ANUARIO AMERICANISTA EUROPEO, 2221-3872, N 8, 2010, Seccin Tema Central, p. 157-173 157 Recibido 2010-10-29 Aceptado 2010-12-18  

E-print Network

ministerios y de las cámaras de comercio en los proyectos de investigación acerca del subcontinente; Béla Kádár, aún como Ministro de Comercio Exterior, ocupó el cargo de vicepresidente del Consejo. El, teniendo un impacto importante en el latinoamericanismo húngaro e internacional. Además, en el período

Paris-Sud XI, Université de

81

ANUARIO AMERICANISTA EUROPEO, 2221-3872, n 8, 2010, Seccin Tema Central, pp. 1-20 1 Recibido 2010-02-11 Aceptado 2010-03-31  

E-print Network

tarea central es sondear y analizar las relaciones complejas entre el contexto internacional, nacional, un año después de la realización del 39° Congreso Internacional de Americanistas (ICA) en el castillo como vicepresidente de un latinoamericanista de Europa del Este: Béla Kádar, Ministro de Comercio

Boyer, Edmond

82

ANUARIO AMERICANISTA EUROPEO, 2221-3872, N 10, 2012, Seccin Fondos p. 1-14 1 Recibido 2012-10-03 Aceptado 2012-11-26  

E-print Network

editadas entre 1880 y 1936. El resultado está siendo incorporado al Repositorio Institucional de la Universidad decidió incorporar textos de carácter histórico a su Repositorio Institucional (dspace desarrollo del entorno" (2010-2014). ORIGEN Y DESCRIPCIÓN DEL PROYECTO. EL REPOSITORIO INSTITUCIONAL DE LA

Boyer, Edmond

83

ANUARIO AMERICANISTA EUROPEO, 2221-3872, n 8, 2010, Seccin Tema Central, pp. 81-91 81 Recibido 2010-09-14 Aceptado 2010-11-30  

E-print Network

, Universidad de Friburgo y Profesor de la Alta escuela pedagógica de Berna), Yvette Sánchez (Prof. en Ciencias Estudios Latinoamericanos, Universidad de Berna), Yasmina Tippenhauer (Dra. en Letras, Directora del centro

Paris-Sud XI, Université de

84

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

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)

Gimenez, Carmen Azcarate

1992-01-01

85

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

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…

Loftin, Richard

86

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

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" courses by the…

EdSource, Inc., Palo Alto, CA.

87

UNO is hard, even for a single player I,II Erik D. Demaine 1 , Martin L. Demaine 1 , Nicholas J. A. Harvey b ,  

E-print Network

Intelligence Laboratory, 32 Vassar St., Cambridge, MA 02139, USA b Department of Computer Science, Faculty, Amazons, Chess, Othello, Go, Poker, and so on. Recently, this field is called `algorithmic combinatorial

Demaine, Erik

88

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)

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.

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

2003-01-01

89

I disturbi emotivo-comportamentali nel grave traumatizzato cranico sottoposto a craniotomia decompressiva: uno studio di follow-up ad un anno dal trauma  

Microsoft Academic Search

Introduzione I disturbi emotivi e del comportamento sono un esito relativa- mente comune negli individui che hanno subito un trauma cranico moderato o severo, e possono essere considerati tanto la conse- guenza diretta che indiretta del trauma, frutto della complessa intera- zione tra variabili cliniche, psicologiche e socio-ambientali. Mentre i disturbi cognitivi e motori in generale tendono a miglio- rare

A. MENICHELLI; V. PESAVENTO; A. ZADINI; L. TACCONI

90

FROM THE CHALDEAN PEOPLES TO EINSTEIN BRIEF HISTORY OF TIME AND SPACE1  

Microsoft Academic Search

Sommario: I concetti si spazio e di tempo, così essenziali nella costituzione della scienza moderna e contemporanea, vengono qui analizzati nel loro costituirsi, dapprima nella forma del mito, per poi gradualmente assumere i caratteri propri dei concetti scientifici. In particolare si analizza il processo attraverso cui spazio e tempo assumono caratteri di grandezze misurabili, prima separatamente per essere poi coordinati

Giuseppe Gentile; Renato Migliorato

2006-01-01

91

1/2 Lugano, 31/08/2012, EMBARGO, 31 AGOSTO 2012, ORE 14.00  

E-print Network

crescita della richiesta di potenza di calcolo, lo spazio a disposizione e le capacità tecniche presso la classe di potenza petaflop. Poiché i supercomputer vengono raffreddati attraverso un sofisticato sistema

92

HOME SCIENZA TECNOLOGIA SOCIET VEICOLI INTRATTENIMENTO VIDEO RUBRICHE Creato Sabato, 24 Luglio 2010 02:13 Scritto da Augusto Rubei  

E-print Network

applicazioni cervello dna esa internet ipad ipad 2 iphone iphone 5 iss luna marte nasa robot scoperta sistema solare smartphone social network sole space shuttle spazio stelle tablet tecnologia terra ufo universo

Lummaa, Virpi

93

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

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)

Chiti-Batelli, Andrea

1986-01-01

94

Robotica 2 A.A. 2008-2009 Corso di Robotica 2  

E-print Network

Robotica 2 A.A. 2008-2009 A. De Luca Corso di Robotica 2 Prof. Alessandro De Luca Robot con ridondanza cinematica #12;Robotica 2 A.A. 2008-2009 A. De Luca 2 f: Q R Robot ridondanti cinematica diretta rispetto a un compito (task) spazio del compito (dim R = M)spazio dei giunti (dim Q = N) #12;Robotica 2 A

De Luca, Alessandro

95

Hans Jürgen Eysenck. Vida y obra de uno de los más influyentes científicos de la historia de la psicología * Hans Jürgen Eysenck. Life and work of one of the most influential scientist in the history of psychology  

Microsoft Academic Search

On this article, the biography and work of one of the most influential scientists in psychology history is briefly introduced. With his work, he laid the bases for the scientific study not only on personality, but also on human behaviour. Hen- ce, the most important contributions done by this author are highlighted in a wide range of areas of our

VANINA SCHMIDT; MARÍA EMILIA DE COSTA; OLIVÁN LUZMILA FIRPO; DAIANA VION; LUCAS CASELLA

2008-01-01

96

Antnio Brando Moniz, Ana Vasconcelos da Silva, Tobias Woll e Jos Joo Sampaio 1 Ttulo : Procesos de globalizacin de las cadenas de valor en la industria de vestuario en Portugal  

E-print Network

digitalización da información y el desarrollo de redes de telecomunicaciones de elevada capacidad ha tornado comunicación presentará algunos resultados derivados do proyecto europeo WORKS, donde son estudiados casos

Paris-Sud XI, Université de

97

Astronomy & Astrophysics manuscript no. (will be inserted by hand later)  

E-print Network

Spazio, Universit`a di Firenze, Largo E. Fermi 5, Firenze, Italy 4 Centro Galileo Galilei, Santa Cruz De with the CAISMI­CNR for the TNG (the Italian National Telescope Galileo at La Palma, Canary Islands, Spain, Instrumentation: polarimeters, Near Infrared 1. Introduction The 3.5m Italian National Telescope Galileo (TNG

Testi, Leonardo

98

Abbonamenti Premi e concorsi  

E-print Network

and Response, Oxford/New York, Oxford University Press David Gilmour Omaggio alla Catalogna Robert Hughes Maggio Freeman J. Dyson L'universo in una stringa Brian Greene, La trama del cosmo. Spazio, tempo e, Milano, Rizzoli Rosemary Dinnage Lezioni da Maestro David Lodge, Dura la vita dello scrittore, Milano

Languasco, Alessandro

99

Echoes generation systems: SHARAD experience  

Microsoft Academic Search

NASA's Mars Reconnaissance Orbiter mission, MRO, scheduled for launch in 2005, will be equipped with a sounder to find subsurface water and ice: Shallow Radar, SHARAD. This radar has been developed by Alenia Spazio and funded by Italian Space Agency, ASI. An integral part of such kind missions is the development of an EGSE (Electrical Ground Support Equipment) capable to

G. Alberti; G. Galiero; A. Moccia; G. Palmese; M. Sacchettino; G. Salzillo

2005-01-01

100

Start up Italy: il talento delle idee  

E-print Network

Start up Italy: il talento delle idee Le start up come opportunità per i giovani di dare spazio persona fisica > Essere residente in Italia Contributo da parte di Bain & Company Italy: > Bain offrirà Istituzioni Finanziarie Giuria: > La giuria è composta da Partner e Manager di Bain & Company Italy Il

Robbiano, Lorenzo

101

Utilisation of Wearable Computing for Space Programmes Test Activities Optimasation  

Microsoft Academic Search

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

V. Basso; D. Lazzari; M. Alemanni

2004-01-01

102

Robotica 2 A.A. 2008-2009 Corso di Robotica 2  

E-print Network

Robotica 2 A.A. 2008-2009 A. De Luca Corso di Robotica 2 Prof. Alessandro De Luca Pianificazione del moto tra ostacoli Introduzione #12;Robotica 2 A.A. 2008-2009 A. De Luca 2 Sistemi robotici spazio di lavoro (cartesiano) KB2017 Dual arm UB Hand - II #12;Robotica 2 A.A. 2008-2009 A. De Luca 3

De Luca, Alessandro

103

Corso di Robotica 1 Robot Mobili su Ruote  

E-print Network

Corso di Robotica 1 Robot Mobili su Ruote Analisi, Pianificazione, Controllo Prof. Alessandro De Luca Robotica 1 1 #12;Sommario uso dei modelli cinematici di WMR analisi di controllabilità* (sistemi differenziale in appendice Robotica 1 2 #12;sono accessibili tutti i punti dello spazio delle configurazioni

De Luca, Alessandro

104

Fotovoltaico: tecnologie attuali, future e ricerca  

E-print Network

manufacturing capacity 18MW/year. #12;Il passato ed il presente delle tecnologie fotovoltaiche #12;La Tecnologia CPV La tecnologia CPV... · è una ricaduta della tecnologia spazio · fa uso di celle a tripla giunzione Tecnologia collaudata Efficienza ottica relativamente elevata Fattore di concentrazione > 1000x raggiungibile

105

tra il cuore e la mente festival dell'eccellenza al femminile  

E-print Network

/INTERVISTA VIPERE, DIVE, DARK LADIES E FEMMES FATALES GIOVED� 12 NOVEMBRE ORE 11.30 Università degli Studi Facoltà VIRTUALMENTE LE ALLEATE DELLATECNOLOGIA. LO SPAZIO DEL WEB NEL MEDITERRANEO. Le donne in rete: comunicazione, blogger, facebook ORE 19.30 GALLERIA PINK SUMMER HAPPY HOUR L'ARTE NEL WEB. LE DECLINAZIONI DEL CORPO E

Genova, Università degli Studi di

106

8a. Sesión del ISTA, Escuela Internacional de Antropología Teatral, en Londrina, Brasil: "Tradiciones y Fundadores de Tradición"  

E-print Network

, un gran salón, el "Mausoleo," la "Plaza Vermelha," con un escenario al aire libre, "Olympia," la cancha de fútbol. Hay unas 150 personas, latinoamericanos, europeos, norteamericanos, orientales. A las 6 de la mañana, desayuno en "Azul y verde," el...

Seibel, Beatriz

1995-10-01

107

El euro, una moneda incompleta1 Amenazas pendientes y posibles soluciones  

E-print Network

contrario ha acentuado sus diferencias. Bajo la ausencia de un presupuesto europeo, una política industrial. La falta de coordinación de las políticas fiscales (impuestos), de salarios (costos unitarios de mano

Paris-Sud XI, Université de

108

Creación de un Sistema de bases de datos federadas a través de Tecnología Java  

Microsoft Academic Search

Resumen: Este artículo p resenta el Proyecto Europeo InTouriSME (building an Internet- based Tourism Constituency for Small and Medium Enterprises in the Less Favoured Regions of Europe) como el punto d e partida pa ra la creación d e un S istema Europeo d e Bases de Datos Federadas para el área d e Turismo. El proyecto InTouriSME permitirá d

Francisca Campins Verger; Pedro Fiol Noguera

109

VALUTAZIONE CLINICA E TRATTAMENTO DELL 'IPONATREMIA  

Microsoft Academic Search

Il sodio rappresenta il principale elettrolita del liquido extracellulare. Il contenuto totale di sodio nell'organi- smo è circa 4000 mmol per un uomo di 70 kg e meno del 5% si trova nello spazio intracellulare. Il fine con- trollo dell'equilibrio idroelettrolitico è mantenuto dall'interazione di meccanismi neuro-ormonali che permet- tono al rene di eliminare urine con osmolarità variabile. L'iponatremia è

F. P OMERO; A. ALLIONE; M. PORTA

110

Robotica 2 A.A. 2008-2009 Corso di Robotica 2  

E-print Network

Robotica 2 A.A. 2008-2009 A. De Luca Corso di Robotica 2 Prof. Alessandro De Luca Controllo nello spazio cartesiano #12;Robotica 2 A.A. 2008-2009 A. De Luca 2 Controllo di posizione cartesiana PD+ per = 0 " pd = 0 ! q = 0 " p = 0 dimensioni degli spazi giunti=N cartesiano=M #12;Robotica 2 A.A. 2008

De Luca, Alessandro

111

PIM CHARACTERISTICS OF THE LARGE DEPLOYABLE REFLECTOR ANTENNA MESH  

Microsoft Academic Search

In the frame of Large Deployable Antenna (LDA) contract with ESA\\/ESTEC, ALENIA SPAZIO made a full Passive Inter-Modulation (PIM) product characterisation of the reflector mesh under development by S.P.A. EGS. The tests were made at three different frequency bands (Ku, C and L) and the results collected as function of several variables (PIM -order, power of carriers, mesh tension, micro-vibrations

V. Lubrano; R. Mizzoni; F. Silvestrucci; D. Raboso

112

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

ERIC Educational Resources Information Center

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…

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

2009-01-01

113

INVESTIAMO NEL VOSTRO FUTURO Comunicato stampa  

E-print Network

intelligenti" promosso da Università e Fondazione Kessler Trento, 25 gennaio 2010 ­ C'è tempo fino al prossimo'Università di Trento e dalla Fondazione Bruno Kessler e finanziato dal Fondo Sociale Europeo (Programma Scienze matematiche, fisiche e naturali e i laboratori della Fondazione Bruno Kessler. Il Master prevede

114

REPERTORIO DIDÁCTICO ESPAÑOL EN EL MARCO DE LA ENSEÑANZA PARA CUERDA EN EL CONSERVATORIO DE MADRID EN EL SIGLO XIX: OBRAS PARA VIOLÍN, VIOLONCELLO Y VIOLA  

Microsoft Academic Search

El análisis del conjunto de aportaciones al repertorio didáctico para violín, viola y violoncello, realizadas por autores vinculados al Conservatorio de Madrid durante el siglo XIX, pone de manifiesto la conexión de la enseñanza de cuerda con modelos europeos, al tiempo que representa un capítulo imprescindible dentro del estudio de la música instrumental española en esa centuria. El Método Elemental

Mónica García Velasco

2005-01-01

115

ARQUITECTURA PRISMA PARA EL CASO DE ESTUDIO: ROBOT 4U4  

Microsoft Academic Search

El desarrollo de software basado en componentes y aspectos esta despertando mucho interés, no sólo en el ámbito académico, sino también en el industrial. En este trabajo se aplica el modelo PRISMA a un caso de estudio de ámbito industrial en el marco del proyecto europeo EFTCoR (Environmental Friendly and Cost-effective Technology for Coating Removal). El caso de estudio consiste

Jennifer Pérez Benedí; Nour Ali Israid; Jose Ángel Carsí Cubel; Isidro Ramos Salavert

116

Fiscalidad autonómica y medio ambiente. Una reflexión en torno al impuesto andaluz que grava la contaminación atmosférica  

Microsoft Academic Search

RESUMEN La fiscalidad y el medio ambiente encuentran su nexo de conexión en la existencia de los tributos ecológicos como instrumento económico para la protección del entorno natural. En este trabajo presentamos un análisis de un impuesto ambiental, el que grava la contaminación atmosférica, ampliamente conocido en los diferentes sistemas tributarios de los países europeos y que, en España, ha

Tomás J. López-Guzmán Guzmán

2009-01-01

117

De un aula virtual plurilingüe a un aula multicultural. Una aproximación desde la perspectiva de la Ciencia Jurídica Europea  

Microsoft Academic Search

Europa constituye, sin duda, una sociedad multicultural. Por este motivo, es preciso que la universidad europea inicie su reflexión sobre la formación multicultural de sus estudiantes y ciudadanos europeos. A una nueva sociedad, debe corresponderle una nueva universidad. La universidad del siglo XXI debe servir a la nueva sociedad del conocimiento en que se ha transformado la sociedad europea. El

Lourdes Salomón; Ana María Delgado García; Rafael Oliver Cuello

2008-01-01

118

INNOVACIÓN DOCENTE DEL DERECHO PENAL DE LA EMPRESA A TRAVÉS DE TÉCNICAS COLABORATIVAS Y ENTORNOS VIRTUALES DE APRENDIZAJE EN EL EEES  

Microsoft Academic Search

La aparición del Espacio Europeo de Educación Superior ha posibilitado la inclusión de algunos cambios en los procesos de enseñanza-aprendizaje en la Universidad. Este trabajo pretende dar a conocer el desarrollo que se ha producido al incorporar las nuevas TIC al orden de las asignaturas de derecho penal en general y del Derecho penal de la Empresa en particular: la

José Manuel Ríos Corbacho

2011-01-01

119

EL “WIKI” COMO RECURSO PARA DESARROLLAR COMPETENCIAS EN EL PROCESO DE ENSEÑANZA-APRENDIZAJE  

Microsoft Academic Search

En el presente trabajo se analiza la utilidad de las tecnologías de la información y la comunicación (TIC), y específicamente del “Wiki”, como herramienta para el modelo de enseñanza-aprendizaje derivado del Espacio Europeo de Educación Superior (EEES). Se realiza una aproximación al significado del EEES y al modelo de enseñanza que propone, en el que lo relevante no es tanto

Mabel López García; José María Souvirón Morenilla

2010-01-01

120

734 IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY, VOL. 2, NO. 4, DECEMBER 2007 A Comparative Study of Fingerprint  

E-print Network

, 2006; revised May 30, 2007. This work was supported in part by BioSecure NoE, in part by the TIC2003 by the Consejeria de Educacion de la Comunidad de Madrid and Fondo Social Europeo, and in part by the Marie Curie

Autonoma de Madrid, Universidad

121

Competencias TIC y trabajo en equipo en entornos virtuales  

Microsoft Academic Search

El Espacio Europeo de Educación Superior (EEES) pone de manifiesto la importancia de definir una serie de competencias consideradas clave en la sociedad red. En este sentido, el proyecto Tuning propone un listado de las competencias que debe adquirir un estudiante a lo largo de una titulación universitaria, divididas en dos grandes bloques: genéricas, comunes a todas las titulaciones, y

Montse Guitert i Catasús; Teresa Romeu; María Pérez-Mateo

2007-01-01

122

AUTOMATIC MEASURES FOR PREDICTING PERFORMANCE IN OFF-LINE SIGNATURE F. Alonso-Fernandeza  

E-print Network

at the University of Kent. This work has been supported by Spanish MCYT TIC2003-08382-C05-01, by Spanish MCYT TEC.-F. thanks Consejeria de Educacion de la Comunidad de Madrid and Fondo Social Europeo for supporting his Ph

Autonoma de Madrid, Universidad

123

SAPIENZA UNIVERSIT DI ROMA DIPARTIMENTO DI INGEGNERIA INFORMATICA, AUTOMATICA E  

E-print Network

risultati del progetto europeo di ricerca FP7 TRADR (EU project n. 60963), verso la comunità robotica robotica Articolo 2 L'attività oggetto della collaborazione avrà la durata di 12 mesi. La collaborazioneRobotics AISBL e della Commissione europea per la ricerca e la divulgazione robotica, nell'ambito della

Guidoni, Leonardo

124

OGPI. Torre de Control Campus San Vicente del  

E-print Network

, Desarrollo e Innovación. Jornada Acciones Marie Sklodowska-Curie de Horizonte 2020. 14 de Octubre de 2014 #12; +34965903803 ogpi@ua.es Dirigido a: Investigadores/as interesados en participar en acciones Marie S. Curie de Acciones Marie Curie: ITN, RISE, IF. - Ana Martínez (Técnico proyectos europeos, OGPI) 09:30 Claves en la

Escolano, Francisco

125

Gasto en I+D, desarrollo económico y empleo en las regiones españolas y europeas\\/Research Expenditure, Economic Development and Employment in Spanish and European Regions  

Microsoft Academic Search

En este artículo analizamos las principales diferencias regionales que existen en España y en Europa respecto al gasto en Investigación y Desarrollo, I+D, y la importancia que tiene el capital humano, tanto en Educación como en Investigación, para impulsar la producción y el empleo. Analizamos los datos correspondientes a 151 regiones de 25 países europeos en el año 2000 y

E. AGUAYO

2005-01-01

126

Efectos de la unión monetaria sobre el comercio internacional: elementos de juicio iniciales de la Unión Monetaria Europea  

Microsoft Academic Search

(Disponible en idioma inglés únicamente) En este trabajo calculamos los efectos iniciales de la Unión Monetaria Europea (UME) en el comercio internacional. Empleamos un conjunto de datos de panel que incluye la información más actualizada sobre el comercio internacional de 22 países desarrollados, desde 1992 hasta 2002. Durante ese período, 12 países europeos se incorporaron formalmente a una unión monetaria.

Alejandro Micco; Ernesto H. Stein; Guillermo Luis Ordoñez

2003-01-01

127

Aspectos de carcter general 1. El presupuesto de la UIB para 2013 se vio afectado por la reduccin de las  

E-print Network

del cuarto curso de la adaptación al espacio europeo de educación superior. En definitiva, la crisis a educación superior cómo si se mira según la transferencia por estudiante. El presupuesto total para el pequeñas intervenciones de obra y de mantenimiento de emergencia). Por otra parte, aunque con una

Oro, Daniel

128

Pgina 1 de 10 CURSO DE ADAPTACIN  

E-print Network

Europeo de Educación Superior y supuso un compromiso de reforma para promover la convergencia entre los sistemas nacionales de Educación Superior. Este objetivo común comenzó a hacerse realidad en el curso oferta de optativas del Grado en Enfermería. Total (12 ECTS): 27029 ENFERMERÍA EN EMERGENCIAS Y CUIDADOS

Escolano, Francisco

129

Ricerca e ricercatori in Italia e nell'Eurozona: quali finanziamenti, personale, governo?  

E-print Network

Europeo per la Ricerca Nucleare) di Ginevra, il britannico Tim Berners-Lee ed il belga Robert Cailliau and Communication Act del 1991, per iniziativa del senatore Al Gore. Nell'ottobre 1994 Tim Berners-Lee lasci`o il

Bellin, Gianluigi

130

Convegni e Congressi 2004 per 2005 Facolt di FARMACIA  

E-print Network

TECNOLOGIA DELLE SOSTANZE BIOLOGICAMENTE ATTIVE 10th European Symposium on Organic Reactivity (ESOR 10) 10mo Simposio Europeo sulla Reattività Organica (ESOR 10) Facoltà di MEDICINA e CHIRURGIA ARGENTINO Corrado dip Maria Pia dip. di MEDICINA SPERIMENTALE E PATOLOGIA EMBO workshop on "Notch signaling in development

Guidoni, Leonardo

131

United Network for Organ Sharing  

MedlinePLUS

... information. Join our online community. Raise awareness about organ donation and transplantation, and interact and connect with others ... can support educational programs to increase awareness of organ donation and transplantation. Go > News from UNOS The UNOS ...

132

AHORA NOS TOCA A NOSOTROS VENIR A HACER : MIGRACIONES DE IDA Y VUELTA Y RECONSTRUCCIN DE LA IDENTIDAD NACIONAL  

E-print Network

ante situaciones de crisis. Los lazos culturales y las redes sociales hacen de España uno de los a reactivar este fenómeno. Los lazos culturales y las redes sociales hacen de España uno de los principales

Paris-Sud XI, Université de

133

Space simulation techniques and facilities for SAX STM test campaign  

NASA Technical Reports Server (NTRS)

SAX is a satellite for X-Ray astronomy. It is a major element of the overall basic Science Program of the Italian Space Agency (ASI) and is being developed with the contribution of the Netherlands Agency for Aerospace Programs (NIVR). The scientific objectives of SAX are to carry out systematic and comprehensive observations of celestial X-Ray sources over the 0.1 - 300 KeV energy range with special emphasis on spectral and timing measurements. The satellite will also monitor the X-Ray sky to investigate long-term source variability and to permit localization and study of X-Ray transients. Alenia Spazio is developing the satellite that is intended for launch in the second half of 1995 in a low, near-equatorial Earth orbit. At system level a Structural Thermal Model (STM) has been conceived to verify the environmental requirements by validating the mechanical and thermal analytical models and qualifying satellite structure and thermal control. In particular, the following tests have been carried out in Alenia Spazio, CEA/CESTA and ESTEC facilities: Modal Survey, Centrifuge, Acoustic, Sinusoidal/Random Vibration and Thermal Balance. The paper, after a short introduction of the SAX satellite, summarizes the environmental qualification program performed on the SAX STM. It presents test objectives, methodologies and relevant test configurations. Peculiar aspects of the test campaign are highlighted. Problems encountered and solutions adopted in performing the tests are described as well. Furthermore, test results are presented and assessed.

Giordano, Pietro; Raimondo, Giacomo; Messidoro, Piero

1994-01-01

134

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)

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.

Holt, James Mike; Clanton, Stephen Edward

2004-01-01

135

Los soportes histórico y científico de la pieza Humboldt & Bonpland, taxidermistas de Ibsen Martínez  

E-print Network

libremente en sus modelos reales, los célebres naturalistas europeos Alexander Von Humboldt (1769- 1859) y Aimé Bonpland (1773-1858), que lograron un prestigio internacional con motivo de la expedición americana comenzada en 1799, cuando sus edades sumaban... del gobierno de Rivadavia. Viene a pedir también el instrumental utilizado en la expedición americana, así como algunas cartas de recomendación. La relación es fría, distante. De manera implícita, esto significa el fin del trabajo conjunto, una...

Obregó n, Osvaldo

1999-10-01

136

Métodos y objetivos terapéuticos en la malnutrición pediátrica  

Microsoft Academic Search

ResumenLa desnutrición hospitalaria sigue siendo un problema generalizado en todos los hospitales europeos, que afecta al 20–40% de pacientes adultos y pediátricos. En combinación con una enfermedad subyacente, la desnutrición deteriora la función inmunitaria y muscular, prolonga la cicatrización de las heridas, inicia la disfunción intestinal y, en consecuencia, incrementa los riesgos de complicaciones graves y reduce la calidad de

2009-01-01

137

Un análisis diferenciador del teatro de Virgilio Piñera: El teatro satírico burlesco y el teatro absurdista  

E-print Network

Jesús, de 1948, y Falsa alarma Pinera "se adelanta a algunos dramáticos europeos de su momento al utilizar recursos y temas del teatro del absurdo."4 Estas afirmaciones de los críticos parecen discrepar un tanto con las declaraciones que el mismo... realidad absurda que se dramatiza. Incluso en Electra Garrigó y Jesús, que son las únicas obras que acusan cierta preocupación metafísica, a la hora de categorizarias se hace difícil encuadrarlas dentro de la fisonomía del teatro del absurdo. En la...

Jerez Farrá n, Carlos

1989-04-01

138

Diseo e Implantacin de Base de Datos para la Difusin y Bsqueda de informacin sobre titulaciones contenida en los  

E-print Network

a las universidades españolas con el desarrollo e implementación de una herramienta software capaz de desarrollo del Espacio de Educación Superior Europeo. El DS tiene como propósito ofrecer un volumen de datos atender consultas de información a través del sitio web del Ministerio de Educación y Ciencia (MEC), y que

Cardeñosa, Jesús

139

Partes Iguales  

NSDL National Science Digital Library

Use esta actividad para desarrollar habilidades en división y sentido numérico durante la merienda o cuando haya un número limitado de cosas para compartir con el grupo: Si repartimos éstos, podríamos tener dos cada uno? Cinco? Más? Por qué lo crees? Prediga cuánto va a recibir cada uno, luego repártalo y vea si su predicción fue acertada. Para una variante más difícil, pruebe repartir la comida de modo que sólo sobre uno. Disponible en formato web, en formato pdf, y en inglés.

TERC

2010-01-01

140

Wide Eye Debris telescope allows to catalogue objects in any orbital zone .  

NASA Astrophysics Data System (ADS)

CGS SpA Compagnia Generale per lo Spazio formerly Carlo Gavazzi Space SpA, INAF (Istituto Nazionale di Astrofisica), DM (Dipartimento di Matematica Pisa) and ISTI-CNR (Istituto di Scienza e Tecnologie dell'Informazione), all members of an Italian Team studying Space Surveillance topics, have been awarded by ESA a Feasibility Study of an innovative optical system for debris surveillance obtained by applying a good combination of both innovative and state of the art solutions. This paper presents the architecture of the optical sensor used for space debris monitoring, catalogue build up and maintenance for collision avoidance, considering the upper LEO belt, the most demanding test case. The proposed sensor is the core element of an Optical Network which, for objects orbiting in the high LEO, can in principle increase performances with a relatively small impact on the overall system costs, compared to radar systems so far considered as baseline for LEO observations.

Cibin, L.; Chiarini, M.; Milani Comparetti, A.; Bernardi, F.; Ragazzoni, R.; Pinna, G. M.; Zayer, I.; Besso, P. M.; Rossi, A.; Villa, F.

141

Node 2 In Space Station Processing Facility  

NASA Technical Reports Server (NTRS)

The U.S. Node 2 awaits launch in the Space Station Processing Facility at the Kennedy Space Center (KSC) since its arrival on June 1, 2003. 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. Alenia built Node 2 as part of an agreement between NASA and the European Space Agency (ESA). Weighing in at approximately 30,000 pounds, the Node is more than 20-feet long and 14.5-feet wide. This centerpiece of the ISS will be the next pressurized module installed on the Station and will result in a roomier Station, allowing it to expand from the equivalent space of a 3-bedroom house to a 5-bedroom house once the Japanese and European laboratories are attached to it. The Marshall Space Center in Huntsville, Alabama manages the Node program for NASA.

2003-01-01

142

New Testing Standard For European Programs  

NASA Astrophysics Data System (ADS)

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.

Giordano, P.

2004-08-01

143

Informatisation et changements organisationnels : l'exemple des activités comptables  

Microsoft Academic Search

[spa] Las empresas francesas son cada vez más informatizadas: en 1998, uno de cada dos asalariados utiliza un ordenador. Esta difusión de la informática va a la par con unos cambios en la organización laboral que pueden influir al fin y al cabo en los resultados de las empresas. La informatización y los cambios organizacionales relacionados con ésta abarcan una

Céline Rouquette; Chantal Cases

2000-01-01

144

LA FOTOGRAFÍA COMO DOCUMENTO HISTÓRICO- ARTÍSTICO Y ETNOGRÁFICO: UNA EPISTEMOLOGÍA  

Microsoft Academic Search

Las fotografías son unos excelentes documentos visuales para la Historia del Arte, la Historia Contemporánea y la Antropología. Sin embargo, hasta ahora, son muy pocos los estudios que tienen a la fotografía como principal fuente histórica y antropológica. Por eso, es indispensable construir una teoría y una metodología útiles para que los investigadores puedan realizar unos trabajos basados en la

Emilio Luis Lara López

145

What Every Patient Needs to Know  

MedlinePLUS

... blood type, and tissue type—into the UNOS computer system. 2. A list is generated. The UNOS computer system matches a list of candidates who have ... Each organ follows different criteria for allocation. The computer ranks candidates based on the allocation policy for ...

146

Fabrizio Granelli (based on slides of Renato Lo Cigno)  

E-print Network

, Argentina, ... ·TACS: Total Access Communications System ·è uno standard sviluppato nel Regno Unito; lavora: Northern Mobile Telephone System ·è uno standard scandinavo, sviluppato senza relazioni con AMPS e TACS internazionali) con tecnologia numerica (GSM, D-AMPS, IS-95) Cenni storici - 6 #12;Reti Cellulari 2G ­ I 9 Cenni

Granelli, Fabrizio

147

Evaluación de métodos de detección de contracción muscular en el músculo parético  

Microsoft Academic Search

Resumen—El objetivo de este trabajo es evaluar el desempeño de dos métodos de detección de cambios en la señal de electromiograma, uno de simple umbral y uno de doble umbral; durante la marcha libre en el intervalo comprendido entre el despegue y apoyo del talón en individuos sanos y hemiparéticos. Para ello se obtuvieron 130 registros y se comparó la

Claudia E. Bonell; Carolina B. Tabernig; Erika G. Spaich

148

GEOMETRA DE CURVAS Y SUPERFICIES  

E-print Network

radio r por parametrizaciones obtenidas a partir de proyecciones estereográficas. Ejercicio 2. Prueba difeomorfa a un cilindro circular recto de radio uno. 2 4x z= + Ejercicio 8. Sea la esfera de radio uno (unitaria) y centrada en el origen de . Se considera la aplicaci6n antípoda: , definida por, 2 (1)S , ) 3 2

Milán, Francisco

149

EFICIENCIA DEL USO DEL AGUA EN LA PRODUCCIÓN AGRICOLA EN GUATEMALA  

Microsoft Academic Search

Los estudios de ciclo de vida, hasta hoy en día, han tenido en cuenta principalmente, los flujos de energía y materiales, no existiendo acuerdo en como tratar el recurso agua, siendo éste uno de los factores que deberían considerarse, especialmente en los sistemas de producción agrícolas. El manejo del agua en agricultura, asociado a su escasez, es uno de los

Willian E. de León; Asunción Antón

150

Genova, Marted 15 Aprile 2014 LA CITTA' DIGITALE PALAZZO DUCALE (Le Cisterne)  

E-print Network

2014 Genova, Piazza Matteotti, 9 " LA CITTA' DIGITALE: Sistema nervoso della smart city" Ore 17 di Città Digitale e di Smart City è ormai diventato uno sport nazionale (ed internazionale). Il CTI della smart city". Il libro ambisce ad essere considerato uno stimolo e una fonte di suggerimenti per

Robbiano, Lorenzo

151

TTULO URL Publicacin Publicacin  

E-print Network

BOE 2007 20 20 by 20: Europe's climate change oportunity http://eur- lex.europa.eu/LexUriServ/LexUriServ.do?uri=COM:2 008:0030:FIN:en:PDF Bruselas: Parlamento Europeo 2007 A revised urban-rural typology http://epp.eurostat.ec.europa.eu=frontcover&dq=9780821377550&hl=es&sa=X &ei=mwZlUq3yHa2I7AaFq4H4CA&ved=0CDQQ6AEw AA#v=onepage&q&f=false World Bank 2008

Autonoma de Madrid, Universidad

152

La actividad teatral en Guatemala en la primera mitad del siglo XX  

E-print Network

1923, después que una comisión técnica, compuesta por los constructores Víctor Cottone, Gustavo Novella y Cristóbal Azari, opinó en septiembre de 1921 que no era rentable reconstruir el teatro y que lo razonable era construir uno más moderno (lo que...

Ferná ndez Molina, Manuel

1996-04-01

153

Nuclear Medicine Imaging  

MedlinePLUS

... on a scanning table underneath a scintillation or gamma camera. A radiopharmaceutical is administered by injecting it ... examen serán eliminados de su cuerpo de forma natural en uno o dos días. Beber líquidos ayudará ...

154

Heartrending Choices.  

ERIC Educational Resources Information Center

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)

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

2000-01-01

155

Getting on the List  

MedlinePLUS

... Pancreas Kidney/Pancreas Liver Intestine Getting On The List For most transplant candidates, the first step in ... get on the OPTN/UNOS national transplant waiting list. All transplant candidates who do not have the ...

156

El acceso al episcopado en la Monarqua Hispnica (1789-1800)* La ltima dcada del siglo XVIII, clave por las repercusiones polticas del primer ciclo  

E-print Network

del siglo XVIII, con el objetivo de comprobar hasta qué punto los factores de uno u otro origen, Francis: Kingship. The Politics of Enchantment, Blackwell, Malden/Oxford/Carlton, 2006, pp. 140-142. 2 AGS

Paris-Sud XI, Université de

157

Securing software : an evaluation of static source code analyzers  

E-print Network

This thesis evaluated five static analysis tools--Polyspace C Verifier, ARCHER, BOON, Splint, and UNO--using 14 code examples that illustrated actual buffer overflow vulnerabilities found in various versions of Sendmail, ...

Zitser, Misha, 1979-

2003-01-01

158

APPROVAZIONE ATTI BANDO 6/2013 Affissione 10/07/2013  

E-print Network

: - Dott.ssa Igina Maria Breccia punti 85/100 Art. 3 Per effetto di quanto sopra disposto dall'art. 2 si procederà al conferimento di 1 (uno) Contratto di prestazione occasionale alla dott.ssa Igina Maria Breccia

Guidoni, Leonardo

159

Taller de Simulacion Probabilidad y Estadistica  

E-print Network

Taller de Simulaci´on Probabilidad y Estad´istica Grado en Telecomunicaciones, curso 2013 Probabilidad y Estad´istica (Grado en Telecomunicaciones, curso 2013-14). En cada uno de ellos se da una breve

Fernández Gallardo, Pablo

160

San Crist6bal en la Amazonia: Colonialisrno, violencia y hechiceria infantil  

E-print Network

territorial, y brotes epide'micos.Los fun- dametztos tniticos de la creencia en la hechiceria infantil seticofallido. la creencia en la hechiceria infantil es uno de 10sproductos impredeciblesy trhgicos del

Bermingham, Eldredge

161

El Blog de Javier Caraballo: Mario Bilbao. Reflexiones. El Blog de Javier Caraballo  

E-print Network

muchas características de una iglesia, de un movimiento sectario. Uno se guía por creencias, tiene que creer en una sociedad futura determinada. Cuando alguien abandona esas creencias y se aleja del dogma

Bilbao Arrese, Jesús Mario

162

viernes, 13 de junio de 2008 en Ibercampus en | Consejo Editorial | Quienes Somos | Ideario | Contacto | Tarifas PublicitariasBuscar  

E-print Network

| Contacto | Tarifas PublicitariasBuscar Análisis Política Sociedad Supervivencia Empleo y formación Ciencia, biomateriales, procesos industriales y biomedicina. Para promover esta disciplina, cada uno de los equipos

Fernández de Córdoba, Pedro

163

DIPARTIMENTO DI MEDICINA MOLECOI,ARE  

E-print Network

Biomolecolori in Archeo-Antropologia per uno nuovo storio delle malottie - COFIN 2008. COMPETENZE DEL PRESTATORE'applicazione di metodologie statistiche multivariate. -Pubblicazioni sull'antropologia di campo e analisi

Guidoni, Leonardo

164

A Correspondence Between Maximal Complete Bipartite Subgraphs And Closed Patterns  

E-print Network

, Haiquan Li, Donny Soh, Limsoon Wong Institute for Infocomm Research 21 Heng Mui Keng Terrace, Singapore; Goethals & Zaki, 2003; Grahne & Zhu, 2003; Uno et al., 2004; Pan et al., 2003; Pasquier et al., 1999; Pei

Wong, Limsoon

165

Environmental Health and Safety -Safety Manual Table of Contents  

E-print Network

Control Plan....................................................51 XIII. UNO Preparedness and Action Plan for Disaster, Emergency, and Dangerous (or Potentially Dangerous) Situations be actively involved in the General Safety Program. To meet this goal, the University of New Orleans

Li, X. Rong

166

PRIMO PIANO VOCI SOLUZIONINEWSVOCI La crisi della biodiversit a livello mondiale  

E-print Network

'Italia. Nel nostro paese la presenza del chitridio è stata confermata sulla rana toro americana (Lithobates catesbeianus), considerata essa stessa uno dei vettori principali della malattia. Purtroppo, gli effetti letali

Andreone, Franco

167

La Gaceta de la RSME, Vol. 12 (2009), Nm. 4, Pgs. 667686 667 Las matemticas de la evolucin  

E-print Network

consideraba a los matemáticos personas con un sexto sentido que les permite «ver» en lugares del pensamiento fundamentales de la evolución Cuando uno reflexiona acerca de qué es necesario, a un nivel abstracto, para que

Cuesta, José A.

2009-01-01

168

Questions and Answers for Transplant Candidates about Model for End-Stage Liver Disease (MELD) and Pediatric End-Stage ....  

MedlinePLUS

... org 4 The UNOS mission is to advance organ availability and transplantation by uniting and supporting its communities for the benefit of patients through education, technology and policy development. ...

169

Questions and Answer for Transplant Candidates about Lung Allocation Policy  

MedlinePLUS

... transplantliving.org The UNOS mission is to advance organ availability and transplantation by uniting and supporting its communities for the benefit of patients through education, technology and policy development. ...

170

Questions and Answers for Transplant Candidates about Kidney Allocation Policy  

MedlinePLUS

... offer. 6 The UNOS mission is to advance organ availability and transplantation by uniting and supporting its communities for the benefit of patients through education, technology and policy development. ...

171

61 FR 46658 - Public Forum on Liver Allocation and Patient Listing Criteria for Liver, Kidney, and Kidney...  

Federal Register 2010, 2011, 2012, 2013, 2014

...OF HEALTH AND HUMAN SERVICES Public Forum on Liver Allocation and Patient Listing Criteria for Liver, Kidney, and Kidney/Pancreas Transplantation...to the current UNOS policy on allocation of livers and patient listing criteria for liver,...

1996-09-04

172

El teatro de los '70: Una dramaturgia sitiada  

E-print Network

intentaba documentar, a través de la escritura teatral, las circunstancias complejas de una realidad sociopolítica que desembocaría, a partir de 1976, en uno de los períodos más tenebrosos y perversamente letales de la vida del país. SPRING 1991 33 La...

Cosentino, Olga

1991-04-01

173

Matching Organs  

MedlinePLUS

... contract with the U.S. Department of Health and Human Services' Health Services & Resources Administration (HRSA), United Network for Organ Sharing (UNOS) maintains a centralized computer network called ...

174

Los desafíos de tratar con las atmósferas: Entrada, Descenso y Aterrizaje - Duration: 30 seconds.  

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 ...

175

Fisica Biologica 2 programma svolto 2009-2010  

E-print Network

algoritmo per individuarla. 9. Le scelte evolutive e la loro necessità. Il folding spontaneo e le catene di -amino acidi. 10. Degenerazione del codice genetico: evoluzione da un codice a doppiette ad uno

Morante, Silvia

176

Educational Robots: Three Models for the Research of Learning Theories and Human-Robot Interaction  

Microsoft Academic Search

In the summer of 2006, the Tulane Electrical Engineering and Computer Science department teamed up with UNO graduate students in education and developmental psychology to conduct experiments in the education of young children using robotic agents. Students from the \\

Sheila Tejada; Neil Traft; Malcolm Hutson; Harold Bufford; Matthew Dooner; Joshua Hanson; Anthony Radler; George Mauer

177

Page 1 of 6 ADMINISTERED BY: Office of the President  

E-print Network

, floods, etc. 3. Emergency is any situation that requires immediate official attention, such as severe Personnel ­ Level 1 and Essential Personnel - Level 2 via UNO user-id and password, will provide the latest

Kulp, Mark

178

Universit degli Studi di Roma "La Sapienza" Facolt di Ingegneria  

E-print Network

- - - - - - TEMAB Il candidato, scelta a sua discrezione una tecnologia all'interno di uno dei settori dell'ingegneria dell'informazione (telecomunicazioni, elettronica, informatica, biomedica), ne illustri lo stato dell

Di Pillo, Gianni

179

Introduccion Heaps Estructura Fibonacci Heaps  

E-print Network

en dos arboles binomiales Bk-1 enlazados (la ra´iz de uno es el hijo m´as izquierdo de la ra´iz del. Para cualquier k entero no negativo, existe a lo m´as un ´arbol binomial en H cuya ra´iz tenga grado k no ordenado Uk consiste en dos ´arboles binomiales no ordenados Uk-1, donde la ra´iz de uno se coloca como

Meza, Oscar J.

180

El Grupo Actoral 80: Una alternativa para la integración latinoamericana en el teatro  

E-print Network

Adjunto y uno de sus ideólogos principales) y reconocido oficialmente como grupo de teatro de la institución. EL GA '80: EL ACTOR Y LA INTEGRACIÓN LATINOAMERICANA Pero el hecho de que actores de distintas nacionalidades latino americanas (boliviana... sesiones de reflexión teórica (conducidas por Gene), decidió convertir la integración latino americana en uno de los ejes orientadores para su actividad, en su alternativa frente al Teatro, en su ideología. Notó también que la reunión de distintas...

Herná ndez, Alex

1988-04-01

181

G. Marconi: A Data Relay Satellite for Mars Communications  

NASA Astrophysics Data System (ADS)

Mars has always been a source of intrigue and fascination. Recent scientific discoveries have stimulated this longstanding interest, leading to a renaissance in Mars exploration. Future missions to Mars will be capable of long-distance surface mobility, hyperspectral imaging, subsurface exploration, and even life-detection. Manned missions and, eventually, colonies may follow. No mission to the Red Planet stands alone. New scientific and technological knowledge is passed on from one mission to the next, not only improving the journey into space, but also providing benefits here on Earth. The Mars Relay Network, an international constellation of Mars orbiters with relay radios, directly supports other Mars missions by relaying communications between robotic vehicles at Mars and ground stations on Earth. The ability of robotic visitors from Earth to explore Mars will take a gigantic leap forward in 2007 with the launch of the Guglielmo Marconi Orbiter (GMO), the first spacecraft primarily dedicated to providing communication relay, navigation and timing services at Mars. GMO will be the preeminent node of the Mars Relay Network. GMO will relay communications between Earth and robotic vehicles near Mars. GMO will also provide navigation services to spacecraft approaching Mars. GMO will receive transmissions from ground stations on Earth at X-band and will transmit to ground stations on Earth at X- and Ka-bands. GMO will transmit to robotic vehicles at Mars at UHF and receive from these vehicles at UHF and X-band. GMO's baseline 4450 km circular orbit provides complete coverage of the planet for telecommunication and navigation support. GMO will arrive at Mars in mid-2008, just before the NetLander and Mars Scout missions that will be its first users. GMO is designed for a nominal operating lifetime of 10 years and will support nominal commanding and data acquisition, as well as mission critical events such as Mars Orbit Insertion, Entry, Descent and Landing, and Mars 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.

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

2002-01-01

182

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

NASA Astrophysics Data System (ADS)

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.

Werner, Marian U.

1993-05-01

183

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

NASA Technical Reports Server (NTRS)

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.

1995-01-01

184

ISO Guest Observer Data Analysis and LWS Instrument Team Activities  

NASA Technical Reports Server (NTRS)

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.

Smith, Howard

2001-01-01

185

Design of A Lander For The Bepicolombo Mission  

NASA Astrophysics Data System (ADS)

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.

Pansart, O.; Anselmi, A.

186

Acknowledgements  

NASA Astrophysics Data System (ADS)

Ackowledgement logos The organizers of the Young Researchers' Meeting in Rome would like to thank all the scientists who participated in the meetings. We thank the Universities of Roma "Tor Vergata" and "La Sapienza" for hosting the first two editions of the conference, and the Physics and Astronomy Doctoral Schools of "La Sapienza" for sponsoring the 2nd meeting. We are grateful to Prof. Roberto Capuzzo-Dolcetta (Univ. "La Sapienza"), Prof. Enzo Marinari (Univ. "La Sapienza"), Prof. Pasquale Mazzotta (Univ. "Tor Vergata"), Prof. Giancarlo Ruocco (Univ. "La Sapienza"), Sig.ra Fernanda Lupinacci (Univ. "La Sapienza"), Dott. Marco Veneziani (Lessico Intellettuale Europeo-CNR), Dott.sa Rossella Cossu (Istituto per le Applicazioni del Calcolo-CNR) and Dott. Paolo Cabella (University of Rome "Tor Vergata") for logistical and technical support, and useful discussions. Conference photographs

2011-02-01

187

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

NASA Technical Reports Server (NTRS)

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.

Martelli, Andrea

1994-01-01

188

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

NASA Astrophysics Data System (ADS)

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.

Martelli, Andrea

1994-11-01

189

Space Radar Image of Kilauea, Hawaii  

NASA Technical Reports Server (NTRS)

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.

1994-01-01

190

Preparation of Scientific Activities Gears Up For The Esa Mars Express Mission  

NASA Astrophysics Data System (ADS)

As the Mars Express orbiter and lander flight model instruments are being delivered for the assembly, integration and testing (AIT) of all spacecraft subsystems, to be ready for launch in May 2003, the scientific teams are shifting from hardware and calibration activities to operations planning. AIT activities are being carried out since the summer of 2001 at Alenia Spazio in Torino, Italy. The launch window has been updated and is now spread over thirty days, opening on May 23, 2003. The nomi- nal mission lifetime is 687 days following Mars orbit insertion, plus about 5 months cruise to Mars. Following the mission timeline, science phases and subphases have been defined. The adopted scheme will reduce the complexity and improve the effi- ciency of the science planning, as well as ease the medium-term and short-term mis- sion planning. For mission planning purposes, the science phases have been divided into science subphases. The main operational restrictions having to do with the down- link rate and Sun elevation parameters , the Initial Orbit Phase and the Routine Orbit Phase have been divided into 28 science subphases using various combinations of Sun elevations and available downlink bit rates. An orbit classification is defined for Mars Express in order to balance the science requirements with the need to constrain oper- ational complexity and cost in the planning and sequencing of science observations. Various orbit types are defined according to operational con-straints and/or observa- tional priorities. These orbit types are to be used multiple times, and a limited number of them will avoid more planning complexity. From the appropriate distribution of these orbit types, combined with the defi-nition of science rules and observational pri- orities, the Master Science Plan is being written and will schedule the acquisition of science data by the Mars Express spacecraft in a way that is consistent with both the scientific objec-tives of the mission and the resources available for that data collection.

Martin, P.; Chicarro, A.; Trautner, R.; Zender, J.

191

MIOSAT Mission Scenario and Design  

NASA Astrophysics Data System (ADS)

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 is currently in phase B and the launch is planned for 2011.

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

2008-08-01

192

Utilisation of Wearable Computing for Space Programmes Test Activities Optimasation  

NASA Astrophysics Data System (ADS)

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 Walls PDM/CAD Tele-operations Product Control room External World

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

2004-08-01

193

Les modes de stabilisation en emploi en début de vie active  

Microsoft Academic Search

[spa] Los modos de estabilización en empleo al principio de la vida activa . . En un contexto en el que las trayectorias de los jóvenes al principio de la vida activa han ido complejificándose, el análisis de los modos de estabilización en empleo muestra las vías por las que unos principiantes establecen relaciones más o menos duraderas con los

Alberto Lopez

2004-01-01

194

Gruppo di Ricerche Avanzate Per l'Enologia (GRAPE) srl (spin off accademico)  

E-print Network

Gruppo di Ricerche Avanzate Per l'Enologia (GRAPE) srl (spin off accademico) Anno di costituzione: 2011 Settore: Viticolo-Enologico Attività: Grape srl è uno spin off accademico dell'Università di esigenze chiave della filiera vitivinicola dal campo alla bottiglia. In ambito viticolo ed enologico, Grape

Sproston, Jeremy

195

Department of Biological Sciences Name: Nicky Anthony  

E-print Network

regulatory mechanisms using the yeast, Saccharomyces cerevisiae as a model organism. Current work these questions by using genetic, molecular, and biochemical approaches in the model organism Saccharomyces cerevisiae. Web page: http://www.uno.edu/cos/biology/people/ Name: Carla Penz Interests: phylogenetic

Li, X. Rong

196

Linux en los Estudios de Grabación  

Microsoft Academic Search

RESUMEN Hoy en día, uno de los problemas que encontramos en los estudios de grabación es que, en pocos años, los equipos electrónicos se vuelven obsoletos. Pensamos que se puede reducir este problema utilizando los sistemas de hardware y software que conforman el sistema operativo Linux como puede ser el control automático de los equipos de grabación y el software

Maximino Peña Guerrero

197

La formación del Partido Conservador: la fusión conservadora  

Microsoft Academic Search

Aunque la Restauración, en cuanto a su historia política, es un período muy agraciado por lo que a atención historiográfica se refiere, todavía algunos aspectos del período están bajo el dominio de lugares comunes discutibles. Uno de ellos es la formación del Partido Conservador. En este artículo se sostiene que la fuerza formada por Antonio Cánovas, si bien hunde sus

Fidel Gómez Ochoa

2003-01-01

198

Fichas de MedTrad (n.° 13): eficacia, efectividad y eficiencia en la investigación de fármacos  

Microsoft Academic Search

Hemos leído con interés el análisis de Ferro García y Vi- ves Montero1 sobre los conceptos de eficacia, efectividad y eficiencia en psicología, por cuanto cada uno de estos tér- minos dispone de un homógrafo específico en el ámbito de la investigación de fármacos, como veremos sucintamente a continuación. En el lenguaje farmacéutico, se entienden por eficacia (efficacy) los efectos2,3

María Verónica Saladrigas; José Antonio; Sacristán del Castillo

199

Boletin de la Sociedad de Estadistica e Investigacion Operativa (2011), 27, 1, 85-87.  

E-print Network

´omo escoger entre distintos experimentos, le plante´o lo que no le sal´ia a uno de sus estudiantes graduados y´ia Fergusson, que era capaz de meterse en cualquier campo de la Estad´istica e intro- ducir alg´un resultado

Gómez Villegas, Miguel Ángel

200

Diseño y análisis de escenarios a partir de la caracterización de las cadenas productivas mediante modelos de redes  

Microsoft Academic Search

La caracterización de las cadenas productivas aplicando el concepto de simulación mediante redes dinámicas, conlleva una descripción mucho más detallada de cada uno de los actores que intervienen en las cadenas, además de esbozar las relaciones entre los mismos a partir de variables de tipo cuantitativas, resultado de la esquematización de sus recursos compartidos. Este artículo es el derivado del

Juan Carlos Vergara Schmalbach; Julio Amézquita López; Francisco Javier Maza Ávila

2009-01-01

201

Malaria: a un paso del fin Para el investigador Quique Bassat hablar de "erradicacin" es posible a largo plazo  

E-print Network

1 Malaria: a un paso del fin Para el investigador Quique Bassat hablar de "erradicación" es posible a largo plazo "Tras un fuerte ataque de malaria la persona se convierte en una piltrafa humana, yace. Según la OMS, la malaria, conocida también como paludismo, afecta cada año a unos 210 millones de

Geffner, Hector

202

INSTRUMENTACIÓN DE GRANDES CALDERAS DE POTENCIA PARA LA APLICACIÓN DE MODELOS AVANZADOS DE INGENIERÍA  

Microsoft Academic Search

RESUMEN La implementación de modelos de monitorización del funcionamiento de calderas de potencia requiere de gran cantidad de datos para su validación, que además deben cumplir unos mínimos requi- sitos de precisión y completitud. La importancia de estos modelos es cada día mayor, pues se aplican en el control de procesos complejos que suceden en este tipo de instalaciones. Frente

Luis Ignacio Díez; Cristóbal Cortés; Inmaculada Arauzo

203

Organ transplantation policy evaluation  

Microsoft Academic Search

The paper on the UNOS Liver Allocation Model (ULAM) describes the building of a simulation model that supports policy evaluation for a national medical problem. The modeling and simulation techniques used in building ULAM include: fitting donor and patient arrival processes having trend and cyclic rate components using non-homogeneous Poisson processes (NHPPs) having exponential rate functions which may include both

A. Alan B. Pritsker; David L. Martin; Janet S. Reust; Mary Ann Flanigan Wagner; O. Patrick Daily; Ann M. Harper; Erick B. Edwards; Leah E. Bennett; James R. Wilson; Michael E. Kuhl; John P. Roberts; Margaret D. Allen; James F. Burdick

1995-01-01

204

Las operadoras de cables submarinos y su papel en unas telecomunicaciones mundiales liberalizadas  

Microsoft Academic Search

Puede que esta revista y los que colaboramos en este informe especial dedicado a los cables submarinos hayamos esperado demasiado para explicar las características de un nicho o subsector de las telecomunicaciones, interesante y atractivo por muy diversos motivos, pero algo atribulado hoy por la fuerte ralentización en la que ha entrado el sector en su conjunto. Hasta hace unos

T. R. Murcia; Café Redacción; Portal Ingeniería

2005-01-01

205

REVISIÓN DE METADATOS EDUCATIVOS Y SU UTILIZACIÓN EN SISTEMAS DE INTERMEDIACIÓN  

Microsoft Academic Search

El proceso de estandarización en las tecnologías de las comunicaciones está desempeñando un papel protagonista en la investigación en el campo de la educación basada en ordenador. Dentro de este proceso uno de los campos más prolíficos es el de la definición de formatos para la descripción de recursos educativos a través de metadatos. Utilizando éstos es posible desarrollar sistemas

Judith Rodríguez; Manuel Caeiro; Juan M. Santos; Luis Anido; ETSI Telecomunicación

206

INSTALACION HIDROELECTRICA CHIVILINGO DE LA COMPAA DE LOTA Y CORONEL  

E-print Network

se capta de dos quebradas: La cascada chica, la de Puentes Mellizos y la tercera no tiene nombre. Las agua del estero Puente Mellizos se capta por medio de un muro análogo al anterior cuyas dimensiones longitud que se une a la cañería del estero Puente Mellizos, a unos 100 metros de distancia del muro del

Rudnick, Hugh

207

Temporada teatral de invierno, Santiago de Chile, 1978  

E-print Network

alcanzar la difícil meta que cada uno se impone en las competencias. Norval encarna al prototipo de frustración deseosa de recuperarse. Nazario Rimbaud, un tornero de 33 años, nunca ha llegado a la meta; su hastío y desesperación con el mundo lo llevaron...

Agosin, Marjorie

1979-04-01

208

EN TORNO AL PAPEL DEL INDIVIDUO EN LA HISTORIA Y JULIO ANTONIO MELLA COMO PERSONALIDAD HISTÓRICA  

Microsoft Academic Search

Como se sabe, Carlos Marx rompió con las concepciones filosóficas precedentes sobre el hombre, de marcado carácter especulativo, sustentadas en un humanismo abstracto, en una antropología que consideraba la esencia humana como algo dado de una vez y para siempre en cada uno de los individuos. De ahí que el hombre fuese concebido como una individualidad abstracta, fuera de la

Edmundo de Jesús de la Torre Blanco

2010-01-01

209

CULTURA MATERIAL Y CONSUMO TEXTIL EN CASTILLA A FINES DE LA EDAD MEDIA E INICIOS DE LA EDAD MODERNA  

Microsoft Academic Search

Uno de los campos de investigación que, en los últimos años, se está desarrollando con gran intensidad en la historia económica, en la historia social y en la antropología histórica es el análisis de la cultura material. Comienzan a proliferar las publicaciones internacionales, especialmente de historia de Italia, de los Países Bajos y de Inglaterra, sobre los palacios, las casas

HILARIO CASADO ALONSO

210

Germ'an Vidal Oriola Doctor en Inform'atica  

E-print Network

la integraci'on de la programaci'on l'ogica y funcional est'a considera­ do como uno de los m'as importantes en el 'area de investigaci'on sobre programaci'on declarativa. Para que los lenguajes declarativos

Vidal, Germán

211

Planificación y Lenguaje para la Iniciación a la Programación Orientada a Objetos  

Microsoft Academic Search

Resumen— La programación orientada a objetos suele enseñarse después de la procedimental en los planes de estudio actuales. La parte práctica de una asignatura de programación suele consistir en la realización de programas. Elegir un lenguaje para cada paradigma, uno orientado a objetos para ambos o un lenguaje híbrido, presenta diferentes problemas de aprendizaje. Además, muchos lenguajes comerciales orientados a

Luis Fernández Muñoz; Rosalía Peña Ros; J. Ángel Velázquez-Iturbide

212

Guy Michelat Croyances aux parasciences : dimensions sociales et culturelles  

E-print Network

. Resumen Daniel Boy y Guy Michelat : Creencias en las paraciencias : dimensiones sociales y culturales. La dos niveles de creencia (análisis jerárquico) concerniendo uno de ellos los fenómenos paranormales, el otro la astrologia. Se ha puesto de manifiesto unas relaciones entre estas creencias y una serie de

Boyer, Edmond

213

Aproximación al sistema contable de los talleres ferroviarios de MZA durante el siglo XIX. (Approach to the accounting system of the railroad workshops of MZA in the 19th century)  

Microsoft Academic Search

El ferrocarril es tradicionalmente uno de los sectores más estudiados por la investigación histórica, tanto en España como en el resto de los países desarrollados, motivado por el importante papel desempeñado en el progreso económico. Dentro del estudio de la historia económica del ferrocarril, destacan las pocas investigaciones realizadas sobre los registros contables, lo cual es fundamental pues está consensuado

Miguel Ángel Villacorta Hernández; Tomás Martínez Vara

2009-01-01

214

Studio micologico del Debaryomyces neoformans (Sanfelice) Red., Cif. et Giord. e significato della specie nella patologia animale  

Microsoft Academic Search

L'A. che in note precedenti e con la collaborazione di Ciferri e Redaelli ha già portato un contributo personale alla posizione sistematica, alla nomenclatura ed alla sinonimia di Debaryomyces neoformans Red. Cif. et Gior., attraverso uno studio culturale, micromorfologico biochimico e biologico di 28 ceppi di origine diversa e con binomi di Cryptococcus hominis, C. neoformans, Torula histolytica, C. hondurianus,

Alfonso Giordano

1939-01-01

215

Studio sulla biologia riproduttiva e sui movimenti migratori dello Storno Sturnus vulgaris  

E-print Network

Studio sulla biologia riproduttiva e sui movimenti migratori dello Storno Sturnus vulgaris Nella corso della stagione riproduttiva 2010 verrà effettuato uno studio sulla biologia riproduttiva dello ricerca prevede una collaborazione tra ISPRA e Dipartimento di Biologia dell'Università di Padova (Prof

Pilastro, Andrea

216

Educacion y crecimiento: una perspectiva mundial 1960-90  

Microsoft Academic Search

En este trabajo estudiamos el papel del capital humano como uno de los factores determinantes del crecimiento economico de un pais, para ello consideramos dos variables fundamentales, el nivel educativo alcanzado por la poblacion activa y el gasto en educacion como medida de la calidad de la enseñanza. Se realiza un estudio comparativo, para 118 paises, de ambas variables en

Isabel Neira

1997-01-01

217

The University of New Orleans Federal Right to Know and Campus Security Act  

E-print Network

. Drug and Alcohol Abuse Prevention Program ­ http://studentaffairs.uno.edu/pdfs/AlcoholAndDrug to current and prospective students. Institutions that award athletically-related student aid are also population and student-athletes, their parents, coaches, and counselors. In addition to the graduation rates

Li, X. Rong

218

LA ESCUELA DE CONTRABAJO EN ESPAÑA  

Microsoft Academic Search

Se estudia el proceso de introducción del contrabajo en España como uno de los dos instrumentos sustitutos del violón, que forma pareja con el violoncello, y traído por los primeros ejecutantes italianos de este instrumento en nuestro país. Se dan además diversos datos técnicos en torno al instrumento, su función en el repertorio orquestal y las obras para él escritas

Xosé Crisanto Gándara

2000-01-01

219

Estudio para la prevención del cáncer necesita voluntarias: El Estudio del Tamoxifeno y Raloxifeno (STAR) se realiza en Norteamérica  

Cancer.gov

El Estudio del Tamoxifeno y Raloxifeno (STAR, por sus siglas en inglés), uno de los estudios más importantes realizados para la prevención del cáncer del seno, está ahora reclutando voluntarias en más de 400 centros en los Estados Unidos, Puerto Rico y Canadá.

220

Diseño y desarrollo del subsistema de detección y reacción de una plataforma para la prevención de ataques coordinados  

Microsoft Academic Search

Resumen. Uno de los requisitos imprescindibles para el éxito en el comercio electrónico es el de proporcionar confianza y seguridad. A pesar del gran avance en este ámbito, tales como sistemas cortafuegos, mecanismos de autenticación y sistemas para la detección de intrusos, la mayoría de las infraestructuras que respaldan el comercio electrónico son actualmente vulnerables a sufrir un gran número

Sergio Castillo; Joaquín García; Joan Borrell

221

EXPERIENCIAS EN EL USO DE UN SOFTWARE LIBRE COMO MEDIO DE ENSEÑANZA EN LA ASIGNATURA COMERCIO ELECTRÓNICO EN LA UNIVERSIDAD DE PINAR DEL RÍO  

Microsoft Academic Search

El desarrollo del Comercio Electrónico es uno de los objetivos de la política de informatización de la sociedad cubana, y en este sentido se labora en la creación de infraestructuras necesarias y la capacita-ción de los recursos humanos necesarios. Las universidades cubanas ya incluyen en sus planes de estudio esta asignatura, cuyos conocimientos contribuyen a formar profesionales de mayor calidad

Lisbet Martínez Gil; Raydel Almestro Román

2009-01-01

222

Problemática de Seguridad para el Comercio Electrónico en el Sector Turístico  

Microsoft Academic Search

Resumen: Uno d e los s ervicios que c ada día cobra más importancia y que promete un cambio radical para las empresas es el comercio electrónico en Internet, pero tradicionalmente las empresas r elacionadas con el t urismo sólo han empleado la red pa ra darse a conocer y ofertar s us productos. La razón esencial es la d

Javier López; Javier Areitio; Felipe Roselló

223

La preocupación por la privacidad\\/seguridad como barrera al desarrollo del comercio electrónico Evaluación, evolución y propuestas de futuro  

Microsoft Academic Search

Uno de los principales factores que limita el desarrollo del comercio electrónico es la percepción de falta de privacidad y seguridad del cliente en Internet. Este trabajo pretende realizar una aproximación a tres aspec- tos de dicha barrera. En primer lugar, se tratará de conocer la verdadera relevancia de la misma, en segundo lugar, se intentará aproximar cuál va a

José Alberto Castañeda García; Francisco Javier Montoro Ríos

224

LESSONS LEARNED FROM THE ADOPTION OF MOBILE INTERNET SERVICES IN JAPAN  

Microsoft Academic Search

Resumen El crecimiento explosivo de los servicios móviles de Internet en el Japón ha origina- do gran interés en entender el porqué del éxito. Dado que los ratios de difusión de estos servicios difieren según los países, algunos trabajos sugieren que deben cum- plirse una serie de requisitos y otros proponen que la cultura es uno de los principa- les

Peter M. Yamakawa Tsuja; Mitsuji Matsumoto

2003-01-01

225

El problema de la distancia en la venta por Internet. Un sentido de la perspectiva geográfica  

Microsoft Academic Search

El comercio electrónico se perfila como una nueva forma de intercambio comercial que podría dar lugar a unos resultados geográficamente positivos, como una mayor distribución de la riqueza y el empleo. Hay ciertos productos y servicios que son extremadamente susceptibles a la distribución electrónica como los servicios financieros, la música, o la programas informáticos, pero cuando se trata de mercancías

Rita Lázaro Sevilla

2007-01-01

226

EXPERIENCIAS EN LA ENSEÑANZA DEL COMERCIO ELECTRÓNICO EN LA UNIVERSIDAD DE PINAR DEL RÍO  

Microsoft Academic Search

El desarrollo del Comercio Electrónico es uno de los objetivos de la política de informatización de la sociedad cubana, y en este sentido se labora en la creación de infraestructuras y la capacitación de los recursos humanos necesarios. Las universidades cubanas ya incluyen en sus planes de estudio este tema, cuyo aprendizaje contribuye a formar profesionales de mayor calidad para

Lisbet Martínez Gil

2010-01-01

227

VIII Encuentro Nacional de Teatro del CLETA  

E-print Network

músicos y cantantes. Unos gozan de más experiencia dentro del género y de más conocimiento técnico que otros; sin embargo, lo que está por encima de algunas posibles deficiencias técnicas es la voluntad firme de los "Cletos" de hacer teatro, de...

Frischmann, Donald H.

1983-10-01

228

Universit degli Studi di Roma "La Sapienza" CF 80209930587 PI 02133771002  

E-print Network

potranno prenotarsi per il tragitto tramite pc oppure tramite smartphone e tablet, grazie a una App quindicina, e comprendono quindi non solo la città universitaria collocata tra la Stazione Termini e il la Sapienza propone alla comunità universitaria uno strumento nuovo che va decisamente in direzione

Di Pillo, Gianni

229

Pre-Veterinary Medicine University of New Orleans  

E-print Network

Pre-Veterinary Medicine University of New Orleans Advisor: Dr. Dorothy Scholl Tel: 280-6624 CRC 202A email: dscholl@uno.edu Minimum Prerequisite Course for Admission to the LSU School of Veterinary towards graduation for both sets of math courses. If you anticipate earning the BS degree in Biology, you

Li, X. Rong

230

Bibliografa bsica, webs y blogs sobre mujer e islam  

E-print Network

Bibliografía básica, webs y blogs sobre mujer e islam: [La bibliografía y las referencias en Internet sobre mujer e islam es amplísima. Aquí solo presentamos unos pocos títulos. ] - L. Abu-Lughod (ed, 1996, - L. Ahmed, Women and gender in Islam: historical roots of a modern debate, New Haven: Yale

Escolano, Francisco

231

Fine Hall nell'Et d'Oro. Ricordi di Princeton nei primi anni cinquanta.  

E-print Network

in anticipo con quei lettori che si troveranno privati bruscamente del conforto del mito. Alonzo Church. Non di questi. Alonzo Church era uno dei più equilibrati, sebbene in qualche modo il suo comportamento linguaggio, utilizzano esempi che non vengono mai usati nel parlare quotidiano. La lingua parlata da Church

Lipparini, Paolo

232

Minors offered College of Business Administration  

E-print Network

website (www.registrar.uno.edu) ACCOUNTING 19 hrs ACCT 2100 Principles of Accounting ACCT 3120 Accounting electives GLOBAL BUSINESS STUDIES 18 hrs ECON 4306 or FIN 4306 Int'l Finance MKT 4546 Int'l Marketing MANG ECON 4261 Int'l l Trade Theory HRT 2050 Prin. of Travel and Tourism HRT 4250 International Tourism #12

Kulp, Mark

233

Las personas con diabetes deben lograr un balance entre los  

E-print Network

en un lado del plato y los alimentos bajos en carbohidratos al otro lado. Karen Halderson, MPH, RD bajos en carbohidratos, manteniendo cada uno en su propio lado del plato o de la mesa. Comer vegetales en diferentes lados de su plato y ver si su plato está "balanceado". Sin embargo, muchas veces

234

UNIVERSITA' DEGLI STUDI DI GENOVA Istituto Studi Superiori dell'Universit di Genova -ISSUGE  

E-print Network

di concorso per ammissione ai percorsi formativi Indirizzo di Eccellenza in Biomedicina Anno in Biomedicina (di seguito IEB) bandisce - per l'anno accademico 2012/2013 n. 10 posti di allievo dei percorsi'Università degli Studi di Genova, ad uno dei seguenti corsi di laurea del settore della BIOMEDICINA: · al secondo

Robbiano, Lorenzo

235

El cluster pesquero de Chimbote: acción conjunta limitada y la tragedia de los recursos colectivos  

Microsoft Academic Search

Chimbote es uno de los principales puertos pesqueros del Perú y alberga una parte importante de las fábricas de harina de pescado del país. Sin embargo, luego de más de cincuenta años de existencia, este puerto está lejos de haberse convertido en un cluster dinámico formado por negocios pesqueros altamente especializados y diversificados. Este trabajo pretende explicar esta situación, usando

Juana Kuramoto

2005-01-01

236

Regulación ambiental sobre la contaminación vehicular en Colombia: ¿hacia donde vamos?  

Microsoft Academic Search

El gran aumento de los niveles de contaminación del aire constituye en la actualidad uno de los problemas más importantes que afronta la sociedad en general, dado su impacto negativo sobre el medio ambiente y la calidad de vida. A nivel internacional se están implementando variadas medidas de política ambiental —instrumentos económicos— en el sector transporte con el fin de

David Tobón Orozco; Andrés Felipe Sánchez Gandur; Maria Victoria Cárdenas Londoño

2006-01-01

237

ESTUDIO DE UN RESONADOR ESFÉRICO APLICADO A ESPECTROSCOPÍA FOTOACÚSTICA STUDY OF A SPHERICAL RESONATOR APPLIED TO PHOTOACOUSTIC SPECTROSCOPY  

Microsoft Academic Search

La técnica fotoacústica es un método muy sensible para la detección de trazas gaseosas en el estudio de la contaminación ambiental y otras aplicaciones. Uno de los principales problemas que presenta es el proceso de adsorción-desorción, presente en el caso de moléculas polares como el agua, el amoníaco o el dióxido de nitrógeno, que produce importantes variaciones en las muestras

A. L. Peuriot; G. D. Santiago; V. B. Slezak; M. G. González

238

Evidencia sobre las Desinflaciones: Experiencia Internacional  

Microsoft Academic Search

En el presente artículo se analizan las políticas desinflacionarias utilizadas para lograr el paso de inflación moderada a inflación de un dígito en nueve países cuya estructura es semejante a la colombiana y cuyo éxito desinflacionario ha sido sostenible. Estos son: Chile, Bolivia, Grecia, España, Portugal, Irlanda, Israel, Nueva Zelandia e Islandia. Además, para cada uno se utilizan dos criterios

Carlos Humberto Cardona; Adriana Pontón; Eduardo Sarmiento

1998-01-01

239

RECAPITI AZIENDALI BPSEC S.r.l.  

E-print Network

dei Test di Laboratorio. Vincitrice di numerosi premi nazionali ed internazionali per la qualità dei.scala@bpsec.it 1 www.bpsec.it CHI SIAMO BPSEC S.r.l. è un gruppo di società che nascono dall'esperienza di suoi servizi e partner di grandi società sportive, BPSEC è oggi uno dei leader riconosciuti dal mercato

De Cindio, Fiorella

240

Studenti-tutori e collaboratori didattici Maria Paola Bonacina  

E-print Network

assegnati dal do- cente, contribuendo al buon funzionamento del laboratorio. Il lavoro di uno studente corsi di diverse discipline (e.g., informatica, matematica, fisica) all'interno dei Corsi di LaureaStudenti-tutori e collaboratori didattici Maria Paola Bonacina Dipartimento di Informatica

Bonacina, Maria Paola

241

6HUYLFLR $XOD 9LUWXDO GH OD (VFXHOD 3ROLWpFQLFD GH &iFHUHV $QWRQLR 3OD]D &DUORV $ 5DPRV $OIRQVR *D]R -RVp /XLV *RQ]iOH  

E-print Network

PSI (Proveedor de Servicios Internet) para poder acceder desde domicilios particulares. Aula Virtual docente (expediente MCD97D024) #12;)LJXUD )XQFLRQDOLGDG JHQHUDO GH $XOD 9LUWXDO Aula Virtual pone el *UDSKLFV. Aula Virtual permite además la posibilidad de acceder a unos sistemas a través de otros (por

Plaza, Antonio J.

242

DISEÑO E IMPLEMENTACIÓN ÓPTIMA DE PERIFÉRICOS DE DSP CON SYSTEM GENERATOR PARA MICROBLAZE  

Microsoft Academic Search

Con este trabajo pretendemos analizar como se lleva a cabo el diseño de periféricos de DSP utilizando uno de los nuevos entornos de diseño de alto nivel: System Generator for DSP. Así, en este documento el objetivo es mostrar por un lado las características del entorno de diseño y las herramientas utilizadas y por otro la metodología de diseño e

J. Viejo; E. Ostua; M. J. Bellido; J. Juan; A. Millan; P. Ruiz-de-Clavijo; D. Guerrero

243

The Pennsylvania State University EDSGN 497D Capstone Design Project  

E-print Network

, interpret, display and store heart rate information, the child can exercise anywhere to earn "carrots by a lithium battery that can last more than 6 hours, store up to 16 hours of heart rate information component in the armband is an Arduino Uno microprocessor, which is connected to a Sparkfun Polar heart rate

Demirel, Melik C.

244

Conference Program Neurotechnology for Biomimetic Robots  

E-print Network

. This neurotechnology affords the opportunity to produce truly reactive autonomous robots. Studies of animal behaviorRobots.com.) Snake Robots Cricket Wilbur (NU), Scott Currie (UCR), Bill Vorus (UNO): Anguillform Propulsion Jamie Flying Insect Robert Michelson (Georgia Tech) Entomopter Autonomous Behavior Ralf Möller (U. Zurich

Ayers, Joseph

245

Campus Security Authority (CSA) Checklist For Responding to a Report of Sexual Assault  

E-print Network

with the survivor as you cover these steps together. _____Do your best to ensure that the student knows that you that you will report only the general date and location of the incident of sexual assault to the UNO Police the survivor if s/he would like to schedule a follow-up time to talk with you. However, remember your role

Li, X. Rong

246

Preguntas sobre pagos Dana-Farber Cancer Institute y Children's  

E-print Network

bien Pagos para Oncología de Radiación 617-732-8434 Consejeros financieros Dana médica. Comuníquese con un consejero financiero de DF/CHCC en uno de los siguientes números. Children números que debe usar para comunicarse con los servicios financieros y de pagos. #12;Primer paso: Entienda

Liu, Xiaole Shirley

247

La profesora de la Universidad de Alicante Estefana Lpez, galardonada con el Premio "Estudios Financieros"  

E-print Network

Financieros" Alicante, 4 de septiembre de 2013 La profesora Estefanía López Llopis, del Departamento de "Estudios Financieros 2013 por su artículo de investigación "Las operaciones de reducción de capital con Estudios Financieros y se ha consolidado como uno de los más prestigiosos en materia de fiscalidad en

Escolano, Francisco

248

Directrices de consenso en el campo de las microfinanzas: Definición de términos, coeficientes y ajustes financieros para las microfinanzas  

Microsoft Academic Search

El propósito de este documento es proponer una definición estándar para cada uno de los términos financieros seleccionados y plantear un método común de cálculo para determinados coeficientes financieros. Fue producido en colaboración entre el Banco Interamericano de Desarrollo (BID) y el Grupo Consultivo de Ayuda a la Población más Pobre (CGAP) del Banco Mundial, con los aportes de varias

Damian von Stauffenberg; Frank Abate; Tillman Bruett; Isabelle Barres; Robert Peck Christen; Richard Rosenberg; Dana de Kanter; Tor Jansson; Barry Lennon; Alice Negre; Sanjay Singha

2003-01-01

249

Page 1 of 4 ADMINISTERED BY: Office of Vice  

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to Withhold to the employee by registered/certified mail, as well as to the employee's UNO email address: EFFECTIVE DATE: CANCELLATION: REVIEW DATE: AP-BA-25.2 Employee Receivables March 7, 2014 Spring 2016 PURPOSE To set forth administrative policy and procedures to collect debts of current employees owed

Kulp, Mark

250

EL CAPITAL RELACIONAL DE LAS COOPERATIVAS DE CRÉDITO EN ESPAÑA: UN ESTUDIO CUALITATIVO DE SUS INTANGIBLES SOCIALES MEDIANTE EL ANÁLISIS DELPHI \\/ THE RELATIONAL CAPITAL OF THE CREDIT COOPERATIVES IN SPAIN: A QUALITATIVE STUDY OF THEIR SOCIAL INTANGIBLE USING THE DELPHI ANALYSIS  

Microsoft Academic Search

Especialmente en el caso de las cajas de ahorro, el capital social ha sido recurrentemente utilizado para explicar la aportación que ciertas entidades bancarias realizan al desarrollo económico y social de sus territorios de actuación. Las cooperativas de crédito, como organizaciones singulares en nuestro sistema financiero, poseen unos intangibles de características particulares. Así, la reputación corporativa, las relaciones sociales, con

Elies SEGUÍ-MAS; Ricardo J SERVER IZQUIERDO

251

NEGOCIACIÓN DE PORTAFOLIOS DE ACCIONES  

Microsoft Academic Search

Resumen Este documento presenta una metodología para conformar portafolios de acciones. En él se expone la técnica usada para inferir precios partiendo de un proceso de preselección a través de un análisis fundamental, seguido de un análisis técnico, posteriormente, se proyectan los precios esperados con la simulación de Monte Carlo para cada acción, tomando cuatro posibles precios para cada uno

JORGE HERNAN RESTREPO CORREA; EDUARDO ARTURO CRUZ TREJOS; PEDRO DANIEL MEDINA VARELA

2007-01-01

252

MINISTERO DELL'ISTRUZIONE DELL'UNIVERSIT E DELLA RICERCA RELAZIONE ANNUALE  

E-print Network

modalita' di imaging: Tomografia a emissione di fotone singolo (SPECT); Imaging di Risonanza Magnetica'attivita' sulla SPECT coinvolge tutte le Unita' partecipanti al progetto. Uno dei risultati principali parallelo, che, in linea di principio, puo' essere utilizzato su qualsiasi macchina SPECT. Esso e' basato su

Bertero, Mario

253

Creencias de las profesoras de la Fundación Íntegramente. Un primer acercamiento al contexto sociocultural de la enseñanza de castellano a los inmigrantes de Santa Coloma de Gramenet  

Microsoft Academic Search

La constante llegada de inmigrantes a Cataluña provenientes de diferentes partes de África, Medio Oriente y Asia ha llevado a la creación de centros de acogida en los cuales se les ayuda a estos a integrarse socialmente. Uno de los centros en la mancha urbana de Barcelona es la Fundación Integramenet en Santa Coloma de Gramenet. En este apareció la

Hermes Iván Díaz Ceniceros

2010-01-01

254

Repositorio de OA para Carreras Informáticas  

Microsoft Academic Search

En la actualidad, uno de los enfoques ampliamente aceptados en la aplicación de las TIC en educación se basa en un nuevo paradigma de diseño de actividades de aprendizaje, poniendo énfasis en la reutilización de contenidos. Como consecuencia surge la necesidad de almacenar, buscar, recuperar, consultar y descargar estos objetos de aprendizaje. Tomando en cuenta la problemática en común en

Marcela C. Chiarani; Berta E. Garcia; Irma G. Pianucci

255

TURISMO SOSTENIBLE Y BIODIVERSIDAD EN LA ORINOQUIA COLOMBIANA  

Microsoft Academic Search

El turismo sostenible y la biodiversidad, es el resultado de una investigación realizada en el marco de un macroproyecto de producción limpia, desarrollado en la Unitropico, Yopal- Colombia. El turismo es uno de los renglones de la economía regional, que en los últimos años ha estado al orden del día de las políticas públicas departamentales, dado la gran variedad de

Martha Edda León Sarmiento

2007-01-01

256

GRADUATE STUDENT HANDBOOK Master of Arts in English  

E-print Network

GRADUATE STUDENT HANDBOOK Master of Arts in English Revised, Fall 2012 #12;Graduate Student Handbook - Master of Arts in English Revised, Fall 2012 Page 2 of 51 CONTENTS Page I. Objectives of the Graduate Program in English 3 II. The UNO Catalog and English Graduate Handbook 3 III. Advising

Kulp, Mark

257

Disposal: Science and Theory Disposal: Science and Theory  

E-print Network

Disposal: Science and Theory #12;Disposal: Science and Theory · Se ubica el carretón con el enfriamiento Ventiladores de túnel de viento #12;Disposal: Science and Theory · Se estaciona el remolque en uno: Science and Theory · Se usa un equipo de dos personas para hacer funcionar el sistema: ­ Operario del

Benson, Eric R.

258

DEPARTMENT OF GEOGRAPHY 2000 Lakeshore Drive 350 Milneburg Hall New Orleans, LA 70148 (504) 280-6294  

E-print Network

DEPARTMENT OF GEOGRAPHY 2000 Lakeshore Drive 350 Milneburg Hall New Orleans, LA 70148 (504) 280 to the 2014 AAG Conference in Tampa Bay, FL. Dear Friends of Geography, As a University of New Orleans alum their UNO experience. One such opportunity is the chance to engage with other Geography students

Kulp, Mark

259

Emergence, transformation and decay in pastoral nomad socio-natural systems  

E-print Network

Emergence, transformation and decay in pastoral nomad socio-natural systems Douglas R. White Chapter 9 in EMERGENCE, TRANSFORMATION AND DECAY IN SOCIO-NATURAL SYSTEMS eds. Sander van der Leeuw, Uno provide measures that are usefully related to issues of the emergence, transformation and decay of social

White, Douglas R.

260

An Inquiry-Based Exercise for Demonstrating Prey Preference in Snakes  

ERIC Educational Resources Information Center

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…

Place, Aaron J.; Abramson, Charles I.

2006-01-01

261

Memorias Cache en Sistemas de Tiempo Real  

Microsoft Academic Search

Resumen El cálculo de una cota del WCET de una tarea (en un procesador moderno) es uno de los principales retos en el estudio de los RTS, ya que el funcionamiento de algunos de los componentes hardware del procesador tiene latencia variable. Un caso particular, muy utilizado en los procesadores actuales son las memorias cache. Estas memorias se emplean para

L. C. Aparicio; J. Segarra; J. L. Villarroel; V. Viñals

262

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

Microsoft Academic Search

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

O. Miloni; J. Núñez; A. Brunini

1999-01-01

263

Métodos de depuración HW-SW para sistemas on chip reconfigurables  

Microsoft Academic Search

El dinamismo de las aplicaciones en sistemas on chip reconfigurables re- quiere un eficiente uso de los recursos disponibles. Para permitir la asignación en tiempo real de los recursos, el sistema operativo y la plataforma SoC reconfigurable han de estar diseñadas en paralelo. En este contexto, el desarrollo del hardware y software encastado presenta los inconvenientes individuales de cada uno,

Guillermo Talavera; Vincent Nollet; Jean-Yves Mignolet; Diederick Verkest; Rudy Lauwereins; Jordi Carrabina

264

Actividad física en la población infantil y juvenil española en el tiempo libre. Estudio enKid (1998-2000)  

Microsoft Academic Search

Introducción y objetivos: La práctica regular de actividad física se ha convertido en uno de los objetivos principales de los planes de salud pública debido a su relación con la prevención de numerosas enfermedades crónicas. La infancia y la adolescencia son momentos clave para iniciar el hábito del ejercicio físico. El objetivo de este trabajo es realizar un análisis descriptivo

Blanca Roman Viñas; Lluís Serra Majem; Lourdes Ribas Barba; Carmen Pérez Rodrigo; Javier Aranceta Bartrina

2007-01-01

265

VALIDACIÓN DEL MÉTODO DE CALIBRACIÓN DE HIGRÓMETROS CAPACITIVOS CON SOLUCIONES SAL-AGUA COMO GENERADORAS DE HUMEDAD  

Microsoft Academic Search

Resumen: La calibración de higrómetros de humedad relativa generalmente se realiza en una cámara de humedad. Los métodos mas usados para generar humedad son el método de dos presiones, el método de flujo dividido y las soluciones de sal y agua. Este último es uno de los métodos menos costosos para realizar una calibración, además de cubrir un amplio intervalo

Jesús A. Dávila Pacheco; Enrique Martines López

266

UNIVERSIT DI BRESCIA FACOLT DI INGEGNERIA  

E-print Network

Automazione Laboratorio di Robotica Avanzata Advanced Robotics Laboratory Corso di Robotica Mobile (Prof. Riccardo elaborato si chiama Morgul. Esso fa parte della scuderia di robot appartenente al Laboratorio di Robotica'interno del laboratorio di robotica. In questo elaborato si analizza e si risolve uno dei problemi più gravi

Cassinis, Riccardo

267

Office of Student Financial Aid & Scholarships Lakefront Campus, 2000 Lakeshore Drive  

E-print Network

, LA 70148 FAX: (504) 280-3973 E-MAIL: PECFORM@UNO.EDU Unaccompanied Homeless Youth Verification-funded shelter: As per the College Cost Reduction and Access Act (Public Law 110-84), I am authorized to verify an unaccompanied homeless youth after July 1, 2008 This means that, after July 1, 2008

Li, X. Rong

268

U.S. Transplantation Data  

MedlinePLUS

... About Dr. Hume About Dr. Kauffman Calendar of Events Transplant Management Forum Jobs in the Transplant Community UNOS developed an online database system, called UNet? ,to collect, store, analyzes and publish ... and transplant event occurring in the United States since 1986. UNet ...

269

Homenaje nacional al maestro Carballido: Setenta años de Carballido  

E-print Network

Martín y Ricardo Ramírez Carnero, y ex estudiantes Sabina Berman y Osear Villegas. Durante estos testimonios conmovedores, el maestro sonreía y se lamía como uno de sus gatos tan queridos, y al final declaró que se sentía como Tom Sawyer de Huckleberry...

Bixler, Jacqueline Eyring

1995-10-01

270

A PhylogeogrAPhic And PoPulAtion genetic AnAlysis of A WidesPreAd, sedentAry north AmericAn Bird  

E-print Network

: the hAiry WoodPecker (Picoides Villosus) Resumen.--El carpintero Picoides villosus presenta uno de los Woodpecker (Picoides villosus) has one of the broadest breeding distributions of any North American bird de distribución de P. villosus para abordar esta pregunta y para explorar la historia evolutiva de la

Winker, Kevin

271

LAS IMGENES DE ESPAA Y EL PENSAMIENTO CONSERVADOR DE MIGUEL ANTONIO CARO EN EL Rafael Alonso RUBIANO MUOZ  

E-print Network

LAS IMÁGENES DE ESPA�A Y EL PENSAMIENTO CONSERVADOR DE MIGUEL ANTONIO CARO EN EL SIGLO XIX. Rafael Antonio Caro (1843-1909) constituye uno de los referentes de las letras hispanoamericanas más fecundas y de esta ponencia se establecen los mutuos nexos que el patricio conservador ­ Miguel Antonio Caro

Paris-Sud XI, Université de

272

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

ERIC Educational Resources Information Center

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…

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

2011-01-01

273

Análisis del dispositivo de balón coil para la oclusión del Ductus Arterioso Persistente  

Microsoft Academic Search

RESUMEN: El ductus arterioso persistente (PDA) es uno de los defectos cardiacos congénitos más comunes. Consiste en una comunicación vascular anormal durante la vida extrauterina, entre la aorta descendente y la arteria pulmonar izquierda. El PDA puede llevar al desarrollo de complicaciones importantes como hipertensión pulmonar, edema pulmonar y endocarditis bacteriana. Actualmente el manejo del PDA se hace por medio

A. C. Silva; J. C. Briceño; A. García

274

niversit degli Studi di Roma "La Sapienza" Facolt di Ingegneria  

E-print Network

secondo e g = 0.7. Il segnale xC!) in ingresso ha uno spettro di densità di potenza Pxx(/) raffigurato nella seguente Figura 2, #12;-4 -2 4 f[kHz] Figura 2 Spettro di densità di potenza del segnale di-aliasing (supposto ideale) ed il guadagno Al del pre-amplificatore affinché il segnale da campionare abbia potenza

Di Pillo, Gianni

275

.. niversit degli Studi di Roma "La Sapienza" Facolt di Ingegneria  

E-print Network

;·... Il segnale x(/) in ingresso.ha uno spettro di densità di potenza Pxx(j) raffigurato nella seguente Figura 3, -4 4 f[kHz] . Figura"3 Spettro di densità di.potenza del segnale di ingresso ~(t) ' O,2 '10-3 v il guadagno Al del pre-amplificatore affinché il segnale da.campionare abbia potenza unitaria; 2. il

Di Pillo, Gianni

276

Le simulazioni basate su modelli matematici co-stituiscono una parte essenziale della metodica  

E-print Network

della complessità dei modelli, il calcolo ad alta potenza è divenuto uno strumento chiave della ricerca. Potenze sempre più elevate Vent'anni fa i supercomputer raggiungevano la potenza che oggi troviamo nei notebook: nella cosiddetta classe di poten- za gigaflops, un calcolatore ad alta potenza svolgeva, all

277

INGEGNERE V.O. LAUREA IN INGEGNERIA CIVILE TRASPORTI  

E-print Network

caratteristica meccanica del materiale rotabile in un tratto a forza costante seguito da uno a potenza costante trazione Tara [t] Posti offerti Forza max a) cerchione [kN] Potenza al cerchione [kW] A 3 casse 94 600 190

Di Pillo, Gianni

278

Esercizi di Matematica C.d.L. in Tecnologie Chimiche per l'Ambiente e per la Gestione dei Rifiuti 18. 11. 2003  

E-print Network

18. 11. 2003 1. Sviluppare la potenza (p - 2)5 . 2. Qual `e il coefficiente di a3 b2 c nello sviluppo della potenza (a + b + c)6 ? 3. Quanti sono i numeri di 7 cifre che si posssono formare in notazione potenza (a + b + c + d)3 . 5. Uno studente deve rispondere solamente a 3 domande di un questionario che ne

Achilles, Rüdiger

279

Padova, 10 luglio 2012 RICERCA: CELLULE STAMINALI DA LIQUIDO AMNIOTICO  

E-print Network

Padova, 10 luglio 2012 RICERCA: CELLULE STAMINALI DA LIQUIDO AMNIOTICO Hanno le stesse potenzialità dimostrato che le cellule staminali presenti nel liquido amniotico possono essere riprogrammate ad uno stadio "più primitivo", simile a quello in cui si trovano le cellule staminali embrionali, senza l'utilizzo di

Schenato, Luca

280

92 Published by the IEEE Computer Society 1089-7801/09/$25.00 2009 IEEE IEEE INTERNET COMPUTING Editor: Munindar P. Singh singh@ncsu.edu  

E-print Network

COMPUTING Editor: Munindar P. Singh · singh@ncsu.edu Shengru Tu · shengru@cs.uno.edu I n a peer-to-peer (P2P the network and other peers' resources. However, in many P2P networks, a considerable portion of peers are reluctant to share resources. Thus, P2P networks' primary expectation -- peers' implicit or explicit

Ulusoy, Özgür

281

Tema I: Calculo Matricial y Geometria Lineal Clasica  

E-print Network

soluciones, sus puntos est´an en una circunferencia de centro el origen y radio uno. uv = 1 uv = -1 x2 - y2 propongo que calcules los radios de dichas circunferencias. De un polinomio del tipo x3 + ax2 + bx + c se

Milán, Francisco

282

Doble jornada escolar y calidad de la educación en Colombia  

Microsoft Academic Search

La calidad de la educación es uno de los principales determinantes del crecimiento económico y el desarrollo. El objetivo fundamental del presente documento es evaluar si la doble jornada escolar tiene efectos negativos sobre la calidad de la educación en Colombia. Para esto se estima el efecto local promedio del tratamiento a partir de regresiones con variables instrumentales. Los resultados

Leonardo Bonilla M

2011-01-01

283

Doble jornada escolar y calidad de la educación en Colombia  

Microsoft Academic Search

La calidad de la educación es uno de los principales determinantes del crecimiento económico y el desarrollo. El principal objetivo del presente documento es evaluar si la doble jornada escolar tiene efectos negativos sobre la calidad de la educación en Colombia. Para esto se estima el efecto local promedio del tratamiento a partir de regresiones con variables instrumentales. Los resultados

Leonardo Bonilla Mejía

2011-01-01

284

Estrategia sobre ubicación y funcionamiento de estaciones de transferencia para el manejo de residuos sólidos en Colombia  

Microsoft Academic Search

El Artículo 1o del Decreto 1713 de 2002 definió como uno de los componentes y actividades del servicio público domiciliario de aseo, la transferencia de residuos sólidos previo a su disposición final. Entre tanto, a partir de septiembre de 2005 y abril de 2009 comienzan a operar las estaciones de transferencia del Valle de Aburra y Palmaseca, respectivamente; convirtiéndose en

Jorge Andrés Perdomo Calvo; Juan Andrés Ramírez

2010-01-01

285

Un français sur cinq déjeune à l'extérieur  

Microsoft Academic Search

[spa] De cada cinco francescs, uno almuerza fuera de casa por André VILLENEUVE . El publicar regularmente la encuesta del INSEE sobre consumos alimentarios permite estudiar los gastos referentes a alimentación de los hogares, así como un aspecto más cualitativo, o sea el de las comidas fuera de casa : ? quién almuerza fuera de casa, y adónde? . La

André Villeneuve

1974-01-01

286

La représentation des habitants de leur quartier : entre bien-être et repli  

Microsoft Academic Search

[spa] Cómo perciben los habitantes su propio barrio: entre bienestar y aislamiento . . A partir de unas respuestas a la pregunta «¿ Puede decir en pocos palabras lo que representa su barrio para usted?», este artículo trata de caracterizar los modos de residir de la población. Se destacan unos seis tipos de habitantes. Los «favorecidos» interesados en las ofertas

Jean-Louis Pan Ké Shon

2005-01-01

287

La industria en el Eje Cafetero y los Departamentos de Bolívar, Santander y Tolima 1985 - 2001  

Microsoft Academic Search

Entre 1985 y finales de siglo el sector industrial en Colombia observó una participación cercana al 15.0% del Producto Interno Bruto -PIB-. En este período, el sector fue uno de los mayores generadores de empleo aunque con una tendencia descendente a lo largo de la serie. Para el caso de los departamentos del Eje Cafetero, integrado por Caldas, Quindío y

Alberto Gómez Ramírez; Gonzalo Restrepo Quintero; Pablo Emilio González Gómez; Fernando A. Chalarcá González

2004-01-01

288

Metodologías para analizar los efectos de calendario en el índice de volumen de la producción industrial en México  

Microsoft Academic Search

Introducción. El Índice de Volumen de la Producción Industrial(IVPI) es uno de los principales indicadores de la economía del país, ya que refleja el nivel promedio de la actividad mensual lograda por la industria. En realidad el nivel mismo del índice no es importante ya que carece de unidades; lo que realmente importa medir son los cambios que se observan

Víctor M. Guerrero

1988-01-01

289

Compito di esami di Calcolo delle Probabilita del 5 Febbraio 2010  

E-print Network

Compito di esami di Calcolo delle Probabilit´a del 5 Febbraio 2010 Esercizio.1 Un lotto di dieci commercializzazione di un lotto ´e rifiutata se uno almeno dei dieci pezzi ´e ri- conosciuto difettoso. a) Calcolare la probabilit´a che la commercializzazione del lotto sia rifiutata. b) Calcolare la probabilit´a che

Corrado, Tanasi

290

ESAME DI STATO PER L'ABILITAZIONE ALL'ESERCIZIO DELLA PROFESSIONE DI ARCHITETTO NUOVO ORDINAMENTO -ARCmTETTO VECCmO ORDINAMENTO-  

E-print Network

.000 mq su un lotto di 10.000 mq, all'interno di un tessuto urbano. Il lotto ha forma quadrata ed è centro di un lotto di mt 70 x 50 insiste un capannone industriale dismesso di pianta rettangolare situata su uno dei lati lunghi del lotto mentre per i restanti lati il lotto è circondato da un

Di Pillo, Gianni

291

Les moyennes entreprises de l'industrie ont-elles des comportements spécifiques ?  

Microsoft Academic Search

[spa] Tienen las empresas medianas de la industria unos comportamientos especificos? . La importancia relativa en cuanto a plantilla de las empresas medianas de la industria ha aumentado en el transcurso de las ultimas dos décadas. Este aumento es debido tal vez a la dinâmica de sus accionistas y al hecho de que el tejido intermediario se ha enriquecido en

Cécile Le Corroller; Fabrice Le Vigoureux

1998-01-01

292

Reliable Group Communication in an Ad Hoc Network Lawrence Klos Golden G. Richard III  

E-print Network

Reliable Group Communication in an Ad Hoc Network Lawrence Klos Golden G. Richard III {lklos, golden}@cs.uno.edu Department of Computer Science University of New Orleans New Orleans, LA 70148 to coordinate the remaining two responsibilities of message storage and retransmission. Section 2 presents

Richard III, Golden G.

293

Virtual Paths Routing A Highly Dynamic Routing Protocol for Ad Hoc Wireless Networks  

E-print Network

. Altalhi Golden G. Richard, III Computer Science Department University of New Orleans New Orleans, LA 70148 U.S.A. {aaltalhi,golden}@cs.uno.edu Abstract In this paper, we introduce the Virtual Paths Routing based technique. This paper is organized as follows. In Section 2, we briefly review related works

Richard III, Golden G.

294

Estabilización de imágenes obtenidas por una cámara a bordo de un vehículo en movimiento para la mejora de un sistema Light-Beam  

Microsoft Academic Search

Los sistemas de visión artificial juegan un impor- tante papel en numerosos Sistemas de Transporte Inteligente (STI), tales como monitorización del tráfico, asistencia al conduc- tor o conducción automática de vehículos. Uno de los principales problemas que suelen sufrir este tipo de sistemas, bien estén instalados en puntos fijos del entorno o en los propios vehículos, es la inestabilidad en

Álvaro González; Luis M. Bergasa; Pablo F. Alcantarilla; Pedro Jiménez

295

Development of an Open-Source Smart Energy House for K-12 Education  

E-print Network

systems in buildings is one way to increase energy-efficiency. Children and young adults influence, with actual loads, using an Arduino Uno electronics platform as an interface to a PC. A reference program. The children control a number of scaled household appliances interactively. A survey with the first 25 children

296

VALUTAZIONE DELLA PROPAGAZIONE DI CRICCHE IN PROVINI SALDATI CON TECNICHE DI EMISSIONE ACUSTICA E TERMOGRAFICA  

Microsoft Academic Search

Il presente articolo si propone di valutare come due tecniche di controllo non distruttivo, l'emissione acustica e la termografia, possano essere integrate in una metodologia che consenta lo studio della propagazione della frattura in condizioni di sollecitazione a fatica. In particolare, si tratta di uno studio preliminare nel quale si vuole proporre un parallelismo tra i risultati ottenuti su prove

M. Calì; G. La Rosa; F. Lo Savio; L. Maiolino

297

The UniversiTy of new orleans Police DeParTmenT annUal secUriTy  

E-print Network

to upholding the Constitution of the United States, the laws of the State of Louisiana while providing superior with United States Code of Federal Regulations, Title 34, Part 668.46(c) (1) this 2010 Annual Security and that of others can we have a truly safe and secure campus. Authority of the UNO Police Department State

Kulp, Mark

298

Pressa il sodio e diventer isolante Lo conferma un articolo su Nature firmato anche da un studioso ticinese  

E-print Network

strutture cristalline. E lo fa con un procedimento genetico. Sul- la base di pochissimi dati inizia- li- litecnico di Zurigo, era uno dei maggioriutentidelCSCSdiMan- no. «Integrando il software nel- l'algoritmo genetico di Oganov, abbiamogeneratounavalangadi strutture», spiega Valle, «alla ri- cerca di quella

Oganov, Artem R.

299

Análisis Comparativo de Algoritmos Genéticos Aplicados a Calendarización de Trabajos en un Grid Computacional  

Microsoft Academic Search

Resumen. Este artículo aborda la calendarización de trabajos paralelos en un Grid jerárquico con dos etapas. En esta configuración uno de los grandes retos es asignar las tareas de manera que permita un uso eficiente de los recursos, al mismo tiempo que satisface otros criterios. En general, los criterios de optimi- zación a menudo están en conflicto. Para resolver este

Victor Hugo Yaurima Basaldúa; Andrei Tchernykh; Moisés Torres Martínez

2013-01-01

300

Aprendizaje Evolutivo de Sistemas Difusos Jerarquicos en Serie  

E-print Network

ayu- dar a paliar esta situaci´on. Por ello, en este trabajo presentamos un Algoritmo Gen´etico Multiobjetivo dise~nado para el aprendizaje de Sistemas Difusos Jer´arquicos en Serie. El algoritmo minimiza dos (interpretabilidad). Se proponen operadores gen´eticos (uno de cruce y dos de mutaci´on) adecuados para aprender este

Casillas Barranquero, Jorge

301

REDES CELULARES DE TERCERA GENERACIÓN: CDMA2000 Y WCDMA THIRD GENERATION CELLULAR NETWORKS: CDMA2000 AND WCDMA  

Microsoft Academic Search

RESUMEN. Este artículo ofrece un panorama general de los sistemas de comunicaciones móviles celulares de tercera generación (3G) que han tenido una mayor aceptación (CDMA2000 y WCDMA) en el mercado, y una comparación basada en los puntos principales donde los sistemas difieren que indica las ventajas y desventajas de cada uno. Los sistemas de comunicaciones móviles celulares 3G ofrecen mayores

Jaime Sánchez García; Myriam Meza Múgica

2005-01-01

302

Interactive EcoPanels: Paneles Ecológicos Interactivos basados en RFID  

Microsoft Academic Search

La creciente combinación tecnológica de computación móvil y aplicaciones sensibles al contexto responde al aumento del uso de dispositivos móviles en la sociedad, y a la necesidad de plantearse nuevos retos en los escenarios que esa combinación plantea. Uno de los campos de aplicación en los que se podría explotar el potencial conjunto de comunicación y colaboración es el diseño

R. Tesoriero; R. Tébar; J. A. Gallud; V. M. R. Penichet; M. Lozano

303

Navegación Planificada de un Robot Móvil en Entornos Interiores Desconocidos  

Microsoft Academic Search

Abstract: vegacin. Por otro lado las arquitectutasdeliberativas permiten una planificacin a alto nivel de lasmaniobras del robot. ltimamente proliferan la utilizacin decontroladores mixtos que aprovechan las virtudes de cada uno deellas. Para el caso de las arquitecturas parcial o totalmentedeliberativas, el conocimiento del entorno por donde el robotnavega resulta imprescindible. Los mapas a priori del entornoEste trabajo ha sido parcialmente

M. A. Zamora; L. M. Tomás-Balibrea; H. Martínez; A. G. Skarmeta

2000-01-01

304

Sistema de control basado en fusion de GPS y odometr´õa para la navegacion autonoma de veh´õculos en plantaciones de vinedos, frutales y campo abierto  

Microsoft Academic Search

En este trabajo se propone una fusion de estados obtenidos a partir de dos sensores, odometro y GPS, funcionando cada uno con su respectivo tiempo de muestreo, pudiendo coincidir o no con el tiempo de muestreo del sistema controlador. Se pretende que un robot movil navegue en forma autonoma, con alto nivel de robustez, por el centro de corredores formados

Franco Penizzotto; Orlando Alvarez; Daniel Patino; Ricardo Carelli

305

University of New Orleans M.A. in Romance Languages  

E-print Network

asset in the pursuance of their careers. Professionals in business, foreign trade, tourism in all its a steppingstone on the way to the Ph.D., the UNO Department of Foreign Languages is offering a graduate option on the above, contact Dr. Eliza M. Ghil, Graduate Coordinator of Romance Languages, Department of Foreign

Kulp, Mark

306

Economía institucional de un bien mayor  

Microsoft Academic Search

La provisión de los servicios de acueducto y alcantarillado en Colombia ha sido sometida, desde 1994, a una terapia consistente en la promoción de un modelo empresarial que se abre paso a costa de la estigmatización del municipio como mal prestador y como asignador ineficiente de unos recursos escasos. A quince años de operación del modelo empresarial y en desarrollo

Óscar A. Alfonso Roa

2007-01-01

307

Lake Level Controlled Sedimentological I Heterogenity of Oil Shale, Upper Green River  

E-print Network

Chapter 3 Lake Level Controlled Sedimentological 1:'_i 'I I Heterogenity of Oil Shale, Upper Green email: mgani@uno.edu t",. The Green River Formation comprises the world's largest deposit of oil-shale characterization of these lacustrine oil-shale deposits in the subsurface is lacking. This study analyzed ~300 m

Gani, M. Royhan

308

Ricerca & Selezione del Personale | Consulenza Aziendale PAGE PERSONNEL  

E-print Network

management. La specializzazione delle divisioni è uno dei punti di forza, infatti i consulenti Page PersonnelRicerca & Selezione del Personale | Consulenza Aziendale PAGE PERSONNEL CHI SIAMO Page Personnel networks; un colloquio conoscitivo con il consulente Page Personnel, un colloquio con il cliente e per

Schettini, Raimondo

309

Gulf Coast Research Center for Evacuation and Transportation Resiliency  

E-print Network

Associate Professor - Planning and Urban Studies, Director - Merritt C. Becker Jr. University of New Orleans of Planning and Urban Studies at the University of New Orleans (UNO) and Director of the Merritt C. Becker Jr communities, sustainable transportation, and evacu- ation planning. Dr. Renne is an author and editor

310

Manuscript title -SCADA systems: Challenges for forensic investigators Irfan Ahmed  

E-print Network

1 Manuscript title - SCADA systems: Challenges for forensic investigators Irfan Ahmed, LA 70148, United States golden@cs.uno.edu #12; 2 SCADA systems: Challenges for forensic investigators Irfan Ahmed, Sebastian Obermeier, Martin Naedele, Golden G. Richard III Abstract SCADA systems run

Richard III, Golden G.

311

Office of Student Financial Aid & Scholarships Administration Building, Room 1005  

E-print Network

______________________________________________________________ __________________________________________________ City State ZIP Code Telephone Number (include Area Code) B. Family Information: List the people in yourOffice of Student Financial Aid & Scholarships Administration Building, Room 1005 New Orleans, LA 70148-2050 Telephone: (504) 280-6603 FAX: (504) 280-3973 E-MAIL: FINAID@UNO.EDU A Member

Li, X. Rong

312

COMPRESIÓN DE VÍDEO MEDIANTE TÉCNICAS DE POST-PROCESAMIENTO  

Microsoft Academic Search

Uno de los requisitos fundamentales en el almacenamiento y transmi- sión de información multimedia es el disponer de técnicas eficaces de compresión y descompresión de datos en el emisor y receptor del canal de comunicación. Para el caso particular de dispositivos móviles de última generación, los cuales transmiten a través de canales inalám- bricos caracterizados por bajos anchos de banda

Sebastián López; Gustavo M. Callicó; Roberto Sarmiento

313

Desempeño laboral de hombres y mujeres: opinan los empresarios  

Microsoft Academic Search

La percepción del empresariado sobre el desempeño laboral de los hombres y las mujeres —y, en especial, sobre sus supuestas diferencias de productividad y costos— incide de manera importante en las posibilidades de acceso al empleo de unos y otras, y en sus condiciones de trabajo. Y en el caso de las mujeres, esa percepción es, en muchos aspectos, poco

Rosalba Todaro; Lorena Godoy; Laís Abramo

2002-01-01

314

El turismo político durante la Guerra Civil: viajeros británicos y técnicas de hospitalidad en la España republicana, 1936-1939  

Microsoft Academic Search

Este trabajo estudia uno de los principales medios de propaganda que empleó la República española para conquistar a la opinión internacional durante la Guerra Civil: los viajes organizados de personalidades extranjeras. El turismo político, a veces considerado como una peculiaridad de los regímenes socialistas, fue empleado por los dos bandos durante el conflicto, pero los republicanos lo practicaron con más

Hugo García

2006-01-01

315

Un Análisis Econométrico del Consumo Mundial de Celulosa  

Microsoft Academic Search

En este trabajo se especifica y estima un modelo econométrico para el consumo de celulosa a nivel mundial y desagregado según los principales países consumidores. El modelo utilizado corresponde a uno de demanda derivada para una firma productora de papel representativa que demandará celulosa como un insumo más para su producción. Esta demanda es posteriormente agregada a nivel de país

José Ignacio Sémbler; Patricio Meller; Joaquín Vial

2006-01-01

316

Un modelo econométrico sobre el consumo de agua en el estado de Guanajuato  

Microsoft Academic Search

El problema del agua se agudiza debido a cuestiones de baja eficiencia en el uso del recurso. Por lo general, los volúmenes de agua que se aplican a los cultivos exceden a sus requerimientos. Entre los cultivos de más baja eficiencia se encuentra la alfalfa, uno de los insumos importantes para la producción pecuaria del Estado. De acuerdo a investigaciones

Eugenio Guzman Soria

2006-01-01

317

La desigualdad en las intensidades energéticas y la composición de la producción. Un análisis para los países de la OCDE  

Microsoft Academic Search

Esta investigación analiza las desigualdades de las intensidades energéticas entre países de la OCDE, su evolución y sus causas. Estas intensidades constituyen uno de los principales factores determinantes de las emisiones per cápita y, por tanto, de las diferencias que se dan entre países y grupos de países. Se desarrolla una metodología que permite la descomposición de la desigualdad en

Juan Antonio Duro Moreno; Vicent Alcantara Escolano; Emilio Padilla Rosa

2009-01-01

318

Jarabe de flor venenosa: la chicha y el surgimiento de una patología colombiana  

Microsoft Academic Search

Todo cuanto se ha escrito acerca de la más popular de las bebidas fermentadas en Colombia pasa por la investigación pionera de Liborio Zerda, porque citar su nombre y relatar sus hazaiias es invocar la autoridad de uno de los más influyentes hombres de ciencia de este país. Si hasta el último cuarto del siglo XIX piquete se escribia con

Marta Saade Granados; Óscar Iván Calvo Isaza

2001-01-01

319

Los servicios hidrológicos y la conservación de los bosques de México  

Microsoft Academic Search

RESUMEN El manejo de los recursos hídricos es uno de los retos ambientales más importantes que los seres humanos tendrán que enfrentar en este nuevo siglo. En México, una crisis severa causada por el mal manejo del agua está siendo acentuada por las altas tasas de deforestación y la pérdida de los servicios hidrológicos proporcionados por los bosques y selvas

Robert H. Manson

320

Human resource management in Spain : are cultural barriers preventing the adoption of global practices?  

Microsoft Academic Search

En este artículo estudiamos hasta qué punto la cultura está afectando a la implementación de prácticas globales de GRH por parte de organizaciones españolas. Uno de nustros objetivos principales es ofrecer una revisión profunda de la evidencia empírica reciente sobre las prácticas de GRH en organizaciones españolas. Nuestro segundo objetivo consiste en discutir dicha evidencia desde el punto de vista

Elizabeth F. Cabrera; J. M. Carretero

2010-01-01

321

University Facilitation of School Restructuring: Critical Milestones for Organization Transformation.  

ERIC Educational Resources Information Center

Critical milestones in the university facilitation of meaningful school reform in schools serving at-risk students--schoolwide assessment, cadre-based planning, and pilot testing of new strategies--are examined in this paper. A training and facilitation mechanism developed by the University of New Orleans' (UNO) Louisiana Accelerated Schools…

Davidson, Betty M.; Allen-Haynes, Leetta

322

Comercio internacional y competitividad en la sociedad del conocimiento  

Microsoft Academic Search

Este estudio parte del supuesto de que la relación entre crecimiento económico y tecnología cobró mayor importancia a lo largo de las últimas décadas, y de desatacar los factores tecnológicos como uno de los aspectos más importantes al momento de explicar los flujos de comercio internacional. De este modo, la idea rectora de este artículo es que el progreso técnico

Laura Avondet; Fernando Piñero

2007-01-01

323

Un nuevo modelo norteamericano de consumo en la periferia de la Ciudad de Mxico: Mundo E, centro de Entretenimiento y Compras  

E-print Network

de esta historia común se destaca en la integración del ocio al comercio, para producir unos del ocio al comercio y presentar los proyectos correspondientes en la Ciudad de México. Una segunda DE UN NUEVO MODELO INTERNACIONAL DE ESPACIO DE CONSUMO EN LA CIUDAD DE MÉXICO El surgimiento

Paris-Sud XI, Université de

324

De la hegemonía a la multipolaridad en el comercio internacional desde la posguerra  

Microsoft Academic Search

El presente artículo se propone interpretar los cambios que en el curso de la posguerra han sufrido las participaciones de unos cuantos países y grupos de países en el comercio mundial desde la posguerra. Algunas de éstas se han mantenido relativamente estables; otras han experimentado variaciones abruptas, lo que plantea interrogantes acerca de tres cuestiones cruciales de la economía mundial:

Clemente Forero; Adolfo Hernández

1987-01-01

325

CENTER FOR SYSTEMATIC ENTOMOLOGY, INC., Gainesville, FL Phylogenetic Revision of Eryphanis Boisduval, with a Description of a  

E-print Network

, USA cpenz@uno.edu Date of Issue: June 6, 2008 INSECTA MUNDI AJournal ofWorld Insect Systematics 0035 from Ecuador (Lepidoptera, Nymphalidae) Insecta Mundi 0035: 1-25 Published in 2008 by Center://www.centerforsystematicentomology.org/ Insecta Mundi is a journal primarily devoted to insect systematics, but articles can be published on any

Penz, Carla

326

SHELTER IN PLACE PAGE 1 OF 4 UNIVERSITY OF NEW ORLEANS  

E-print Network

) tornado, or 3) an outdoor airborne hazardous materials release. Below are the steps that faculty, staff and students should follow if any of these incidents should occur on the UNO main campus. A three (3) minute situation to report. 2. TORNADO 2.1 WARNING SIREN: When you hear the official Shelter-In-Place warning siren

Li, X. Rong

327

UNIVERSIDAD DE LA REPUBLICA FACULTAD DE INGENIERIA  

E-print Network

Machines 27 4.1. Introducci´on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.2. SVM para . . . . . . . . . . . . . . . . 27 4.2.2. Caso linealmente no separable (C-SVM) . . . . . . . . . 31 4.2.3. SVM no lineal . . . . . . . . . . . . . . . . . . . . . . . 34 4.3. SVM multi-clase . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4.3.1. Uno contra

328

Nota de prensa CSIC c o m u n i c a c i n  

E-print Network

.csic.es Página 1 de 2 Madrid, miércoles 06 de junio de 2012 Plan de emergencia para la Tierra El CSIC participa. Un artículo en la revista Nature, en el que han participado investigadores del Consejo Superior la población es de unos 77 millones de personas, casi 1.000 veces superior que la experimentada hace

Fitze, Patrick

329

Testing static analysis tools using exploitable buffer overflows from open source code  

Microsoft Academic Search

Five modern static analysis tools (ARCHER, BOON, PolySpace C Verifier, Splint, and UNO) were evaluated using source code examples containing 14 exploitable buer overflow vul- nerabilities found in various versions of Sendmail, BIND, and WU-FTPD. Each code example included a \\

Misha Zitser; Richard Lippmann; Tim Leek

2004-01-01

330

VI Jornades de Debat en Histria de l'IUHJVV Conferncia Internacional sobre "Arqueologia dels crims  

E-print Network

Humanity and Genocide" Barcelona, 13-14 desembre 2012/Barcelona, 13-14 diciembre/Barcelona, December 13 demanded severe punishment. In 1948, the UNO defined the crime of genocide. In 1998, the International of archaeology in the prosecution of crimes against humanity and genocide. #12;2 Programa/Programa/Program: 13

Verschure, Paul

331

Elementos claves para el desempeño de Pymes industriales en Cali, Colombia. Análisis de los 10 sectores más representativos en número de Pymes  

Microsoft Academic Search

El artículo presenta el resultado de la fase uno correspondiente a la investigación: “Identificación de perfiles de proyectos para mejorar el desempeño de PYMES industriales en Cali, Colombia, en elementos claves”. El estudio se realizó en diez sectores industriales representativos tanto en número de PYMES, como en generación de empleo. Se estudiaron confección, plástico, panadería, litografía y tipografía, maquinaria industrial,

Carlos Arturo Cano Hernández

2009-01-01

332

Comparacin de la dinmica de sedimentos suspendidos entre una baha tropical abierta y una baha tropical cerrada  

E-print Network

explorado completamente. Su estudio es esencial para definir la calidad del agua, lo que conlleva una gran de sedimentos suspendidos (TSS) constituye uno de los parámetros de calidad de agua más importantes arcilla, el limo y la arena (Miller et al. 2004). Además de afectar la calidad del agua, el TSS es

Gilbes, Fernando

333

ALTERNATIVAS PARA LA OPTIMIZACIÓN DE LAS CAPACIDADES DE ALMACENAMIENTO  

Microsoft Academic Search

Hoy en día el dominio de la logística se ha transformado en uno de los ingredientes esenciales del éxito empresarial, existiendo empresas especializadas en brindar servicios terciarios de gestión logística. El caso de estudio seleccionado es un operador logístico especializado en el arrendamiento de almacenes, donde por las dificultades relacionadas con la utilidad del arrendamiento por metro cuadrado, la tecnología

Daynier Marzo Cervera; Elsa Delgado Pérez; Clara Marrero Fornaris

2010-01-01

334

Department of Computer Engineering Fall 2012 Harris Water Bottle  

E-print Network

PENNSTATE Department of Computer Engineering Fall 2012 Harris Water Bottle Overview The project's goal was to measure the amount of water exiting a water bottle and send this information to a cellular) o Found Bluetooth shield for Arduino Uno R3 o Found flow sensor o Developed water bottle o Developed

Demirel, Melik C.

335

FORMACIN DE PROFESORES DE MATEMTICAS PEDRO GMEZ  

E-print Network

sus conocimientos y sus creencias y dentro de unos contextos cultura- les, sociales, políticos, curriculares e institucionales, decide qué tipos de experiencias matemáti- cas viven sus estudiantes en el aula la Universidad de los Andes. Los estudiantes se organizan en grupos. Cada grupo es acompañado a lo

Amézquita, Adolfo

336

Una investigacin de la UA avanza en el diagnstico precoz del Alzheimer mediante marcadores biolgicos  

E-print Network

Una investigación de la UA avanza en el diagnóstico precoz del Alzheimer mediante marcadores enfermedad de Alzheimer. Este es uno de los resultados obtenidos por la doctoranda Natividad López Riquelme y Traza en la Enfermedad de Alzheimer y su asociación con los agentes del Estrés Oxidativo sistémico

Escolano, Francisco

337

Mathematical model to select the optimal alternative for an integral plan to fight against desertification and erosion in the Chaco area in Salta Province of Argentine  

Microsoft Academic Search

That area in the Province of Salta at North West of Argentina has a size not smaller than Belgium and low growing population, and is a specific example of combined natural, ecologic, agricultural and human evolution, where a main restriction is the necessity to avoid desertification, that is the soil quality loss studied now in several forums, the U.N.O. having

J. M. Anton; J. B. Grau; F. Colombo; L. de Los Rios; A. M. Tarquis

2009-01-01

338

UNA PRESENTAZIONE DIDATTICA DELLE GEOMETRIE NON EUCLIDEE  

Microsoft Academic Search

Sunto: Si affronta il problema dell'insegnamento delle Geometrie non Euclidee nel triennio della scuola media superiore; si propone un per- corso che si sviluppa a partire da un approccio di tipo assiomatico, proseguendo con uno studio comparativo delle geometrie, euclidea, assoluta, iperbolica ed ellittica, e con la presentazione del modello di Poincaré per la dimostrazione della non contraddittorietà della geo-

C. Di Foggia; T. Olivello; R. Prosperi; A. Rotunno

339

Eidgenssische Technische Hochschule  

E-print Network

ante repertus, hoc uno responso animum delusit Apollo,qui fore te ponto incolumem finisque canebat for his generous support and the dis- cussions during the conception of this project as well as his kind project. I also want to express my gratitude to all the other members of the Vi- sion Research Laboratory

California at Santa Barbara, University of

340

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

NASA Astrophysics Data System (ADS)

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 spent traveling in areas where minorities, particularly African Americans, are uncommon (southern Utah, Idaho, Wyoming, etc). Perhaps it is the thrill of feeling that they are traveling in hostile territory combined with the close living quarters and continuous interactions as a group, as well as the outstanding instruction, during the trip, that gives them the incentive to go to UNO and study geology.

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

2006-12-01

341

Artist meets computer  

NASA Astrophysics Data System (ADS)

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?

Faggin, Marzia

1997-04-01

342

Plate tectonics and petroleum potential of the Laptev Sea region  

SciTech Connect

About 1,600 km of multichannel seismic data with simultaneous gravity and magnetic measurements were collected in the Laptev Sea during 1989. Additionally, a 100 km onshore seismic reflection profile transected the northern termination of the Verrkoyansky Mountains. Data interpretation showed the following. The tectonic patterns of the Laptev Sea region was formed as a result of two major tectonic phases. The first phase was associated with collisions between the Paleozoic passive margin of Siberia and a number of allochthonous terrains which were previously parts of the North American Paleo-Pacific plate. These tectonic events accompanied the opening of the Canadian basin and ended in the second half of the Early Cretaceous. The second phase was a result of the opening of the Makarov and the Europeo-Asiatic basins, which caused the rifting processes within the Laptev Sea Shelf. Seismic onshore data show that the orogenic sequence consists of allochthonous plates which were thrust onto the thick sedimentary cover the Siberia platform. An underthrusting sedimentary sequence is situated at depths from 3 to 5 km, which present a good possibility to reach by the drill. The geological analogy with Appalachian Mountains United States, permits one to propose a high petroleum potential for this area. A system of offshore Laptev Sea grabens consisting of a series of alternating tilted and thrusted blocks, along with intrablock pre-drift sediments, are promising as potential hydrocarbon traps. This is akin to structural setting within North Sea oil and gas province.

Savostin, L.; Drachev, S.; Baturin, D. (LARGE International, Moscow (USSR))

1991-08-01

343

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

PubMed Central

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

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

344

Young Investigator Perspectives. Teaching and the postdoctoral experience: impact on transition to faculty positions.  

PubMed

This editorial continues with our Young Investigator Perspectives series. Drs. Uno and Walton are young investigators who hold faculty positions. They completed a K12 postdoctoral program through the IRACDA (Individual Research and Career Development Award) program sponsored through the NIGMS institute at NIH. IRACDA programs exist at multiple institutions in the USA to combine postdoctoral training with formal training in academic skills and teaching at partner institutions. I thank Drs. Walton and Uno for a thoughtful perspective on how this experience shaped their career goals to combine teaching and research and inspire undergraduates to science careers. Given the current national dialog on broadening career paths and outcomes for PhD scientists, this is a timely perspective. -P. Kay Lund. PMID:24650550

Uno, Jennifer; Walton, Kristen L W

2014-05-01

345

Fighting Infection by Clonal Selection  

NSDL National Science Digital Library

Etsuko Uno and colleagues at the Walter and Eliza Hall Institute of Medical Research in Melbourne, Australia, explain Burnet's clonal selection theory in an animation of the body's response to Streptococcus pyogenes, the bacterium that causes strep throat. Proteins from the invader enter the lymph node and grab the attention of one of billions of B cells. That B cell then clones itself thousands of times and sends antibodies via the bloodstream to the infection site. There, the antibodies bind to the strep bacteria, acting as a red flag that alerts other immune system cells to destroy the infectious agent. "We hope that the animation will pique people's interest in how the immune system works and that they will appreciate the impact of Burnet's clonal selection theory on our understanding of the immune system," Uno says.

Etsuko Uno (Walter and Eliza Hall Institute of Medical Research; )

2008-09-26

346

Impact of segmental grafts on pediatric liver transplantation—A review of the United Network for Organ Sharing Scientific registry data (1990–1996)  

Microsoft Academic Search

Purpose: The aim of this study was to assess the relative impact of segmental grafts from cadaveric and living donors on outcomes in 3,409 pediatric transplants (< 18 years) between 1990 and 1996.Methods: Analysis of the United Network for Organ Sharing (UNOS) Scientific registry data from 1990 to 1996 was performed.Results: Liver grafts consisted of 2,636 whole grafts (WLG), 246

Rakesh Sindhi; John Rosendale; Dale Mundy; Sarah Taranto; Prabhaker Baliga; Adrian Reuben; P. R Rajagopalan; Andre Hebra; Edward Tagge; H. Biemann Othersen

1999-01-01

347

Biomecánica de la articulación de la rodilla tras lesiones ligamentosas  

Microsoft Academic Search

La planificación preoperatoria se está consolidando en la actualidad como uno de los campos con mayores\\u000aperspectivas de futuro en la bioingeniería. Para que el desarrollo de estas herramientas sea eficaz deben\\u000aemplearse modelos computacionales lo más realistas posibles con el fin de reproducir fielmente el comportamiento de los tejidos involucrados. Estudios computacionales mediante técnicas como, por ejemplo, el método

Estefanía Peña; Begoña Calvo; Manuel Doblaré Castellano

1970-01-01

348

Curvas de rotación - Atlas  

NASA Astrophysics Data System (ADS)

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.

Martín, C.

349

Simplifying the Analysis of C++ Programs  

E-print Network

Chair of Committee, Bjarne Stroustrup Committee Members, Jaakko J arvi Lawrence Rauchwerger Sergiy Butenko Head of Department, Duncan M. (Hank) Walker August 2013 Major Subject: Computer Science and Engineering Copyright 2013 Yuriy Solodkyy... very grateful to Jaakko J arvi, who has been my uno cial supervisor all this time not only in computer science, but also in squash and writing. I would also like to thank Gabriel Dos Reis for forcing me to take his classes, which always were a source...

Solodkyy, Yuriy

2013-08-14

350

Dramaturgia mexicana contemporánea: ¿Qué rayos está pasando?  

E-print Network

explorar el habla cotidiana. Uno de los aspectos de mayor valía es precisamente el hecho de que nuestros autores de este momento convierten el lenguaje coloquial en verdadero experimento. Las obras se alejan cada vez más de la excelencia lingüística para... de choque en el sentido más dramático del término. En el caso de la obra de Liera, encontraremos magistralmente engarzados los campos de la denuncia política y de la recreación del mito e imaginería populares. Es una historia que, con gran...

Salcedo, Hugo

1994-04-01

351

Regmi Research Series ,Year 3, December 1, 1971  

E-print Network

.. ~t t iUlJ was Damodar Panda . But accordinl.': t o the a,roer ot' p.rccodencfJ, Kirt1rnan Basnot occup1.ed the topmotit po ~iti(J lL . Till thon t hE: convention of ontrusti nc- all POWOl'S t o a si~l" p l ' r SO!\\ uno dus1gnating him as Hukhtiyar... th~ cbild born from the, ::lame Drahmin girlwred v.oice thoir opposition to the king...

Regmi, Mahesh C

1971-01-01

352

DINÁMICAS EVOLUTIVAS DE SUELOS EN ATUM PAMPA, SIERRAS PAMPEANAS, CÓRDOBA, ARGENTINA  

Microsoft Academic Search

RESUMEN Atum Pampa se ubica en las Sierras Gran- des de Córdoba, a 1000 m s.m. Los proce- sos pedogenéticos dominantes en el área son: melanización, calcificación-descal- cificación, eluviación-iluviación y alcalinización. Los horizontes superficia- les contienen dos tipos de humus: uno es un mull con dominio de Ca++ intercam- biable y el otro es un mull con CO 3Ca libre.

EVOLUTIVE SOIL; ANÍBAL MANZUR; Parque Gral

1997-01-01

353

Luis David Alvarez Corral Chicago 2002-03  

E-print Network

calidad del vídeo transmitido y con unos retardos tolerables. #12;En qué trabajan: Codificación utilizada en la fuente que transmite el vídeo. Control de la energía utilizada en la transmisión. Adaptación de decodificador. Están desarrollando técnicas para transmitir una secuencia de vídeo con calidad y retardos

Granada, Universidad de

354

Apología dramática a José Gorostiza  

E-print Network

dramaturgo en las vertientes mexicanista y vanguardista. Además, por primera vez se estudian los apuntes ológrafos de varias de sus piezas inéditas. José Gorostiza y la escena El disfrute teatral fue parte de la infancia de los hermanos Gorostiza.... Celestino recuerda en uno de sus escritos que durante los años que vivieron en Aguascalientes (1913-1917) jugaban al "Teatro-Salón Napoleón," como lo habían bautizado. Las representaciones eran precedidas de un desfile como los circos "con un automovilito...

Schmidhuber, Guillermo

1994-04-01

355

Prefazione alla terza edizione italiana  

Microsoft Academic Search

L'ormai avvenuto passaggio di tutte le facoltad i Ingegneria al nuovo ordinamento, che prevede il conse- guimento della laurea dopo soli tre anni di corso, ha por- tato ad una inevitabile revisione dei piani di studio di tut- te le classi di studio; nella stragrande maggioranza di quelle legate all'Ingegneria dell'informazione, e non solo in quelle, questo ha comportato uno

Carmelo Gerardi; Paolo Gubian

356

Propuesta de Diseño para la Gestión Colaborativa del Conocimiento Mediante Información Semántica  

Microsoft Academic Search

ABSTRACT Uno,de los ,efectos indeseables ,de la ,introducción de las tecnologías de la información y las comunicaciones, Internet y la Web ha sido ,la sobrecarga ,de información. Se están buscando soluciones,a este ,problema ,desde ,distintos campos ,de investigación, Gestión del Conocimiento, Minería de Información, Web Semántica, etc. Una hipótesis interesante para buscar soluciones a este problema,en el ámbito de los

Jaime Moreno Llorena; Xavier Alamán Roldán; Ruth Cobos Pérez

357

Penas sin importancia y Tío Vania: Diálogo paródico entre Chejov y Gambaro  

E-print Network

teatralmente con el tropo escénico romano del contaminatio, la contaminación o entrelace de un drama viejo y uno nuevo, tropo que Harold Bloom rescata para explicar el uso expreso de la influencia dentro del teatro contemporáneo. Bloom considera ese... entrelace como defensa de un autor con respecto a sus precursores (o rivales), o como una forma de su gozoso desprecio de las fuerzas literarias del pasado. Distingue la contaminación de la influencia en que aquélla es voluntaria, y la define como medida...

Morell, Hortensia R.

1997-10-01

358

Algebra I para bachillerato, CIMAT, ago-dic 2013 Reto de la tarea num. 3  

E-print Network

en el curso. En mi salon de clase 7 de los alumnos tienen iPhone, 6 son chismosos y 5 tocan el violin. Luego, de los que tienen iPhone 4 son chismosos y 3 tocan el violin. Luego, 2 de los chismosos tocan el violin y uno de estos 2 tiene iPhone. . . ¿Cu´antos alumnos hay en mi salon? Sugerencia: primero

Bor, Gil

359

Dos tardes con Carlos Solórzano  

E-print Network

para vivir ni mucho menos para morir. Y claro, cuando uno tiene un pensamiento filosófico, abstracto, más o menos literario, que viene a ser confirmado por un hecho de la realidad, forzosamente se acendra como una vivencia casi inseparable de la... Camus, de Ghelderode; el teatro del absurdo de Beckett, de Ionesco? Empezando por el final de su pregunta, el teatro abstracto, descarnado, un tanto deshumanizado de Beckett y de Ionesco, realmente lo admiro, pero no creo haber tomado nada de eso. En...

Mé ndez-Faith, Teresa

1984-10-01

360

Lezione 20: La grafica 3D ed il WEB  

E-print Network

', importandole da vari programmi di grafica 3D. Grafica 3D in Flash Vecta 3D e' un plug-in per 3D studio MAX cheLezione 20: La grafica 3D ed il WEB La grafica 3D ed il WEB Lo sviluppo che ha avuto Internet negli distribuire contenuti multimediali. La grafica 3D e' uno strumento interessante con cui e' possibile creare

Gribaudo, Marco

361

Probabilidad I TAREA EXAMEN  

E-print Network

Probabilidad I TAREA EXAMEN 1. La densidad conjunta de X y Y est´a dada por f(x, y) = xe las densidades de X y Y la densidad de (a) Z = X/Y y de (b) Z = XY . Evalua tus expresiones en el caso). Calcula la densidad conjunta de U y V en cada uno de los siguientes casos. (a) U = X + Y y V = X/Y . (b) U

Aíza, Ricardo Gómez

362

Fármacos dirigidos activos contra el cáncer de seno HER-2 positivo: preguntas y respuestas  

Cancer.gov

ALTTO fue un estudio clínico diseñado para determinar si la combinación del anticuerpo monoclonal trastuzumab (Herceptina) y el fármaco lapatinib (Tykerb) era más eficaz para el tratamiento del cáncer de seno HER2/ErbB2 positivo al combinarse con quimioterapia que el tratamiento con uno solo de los fármacos. Los resultados del estudio no indicaron que existan ventajas al combinar trastuzumab y lapatinib frente al tratamiento solo con trastuzumab.

363

The population projection as a matrix operator  

Microsoft Academic Search

\\u000a Resumen  El método de “componentes” para proyecciones de población, uno de los métodos demográficos más valiosos, ha sido tratado casi\\u000a enteramente como metoda empirico, desprovisto de una teoría básica 0 una esiruciura matemática. Este articulo considera la\\u000a proyección como una matriz, con valores de supervivencia en la diagonal principal y en la primera fila una función que expresa\\u000a la probabilidad de

N. Keyfitz

1964-01-01

364

Depuración de las aguas residuales procedentes de la tintura con transportadores  

Microsoft Academic Search

En este trabajo, se describe la técnica de extracción-cromatografía de gases utilizada para la valoración cuantitativa de los carriers (transportadores de tintura) en las aguas residuales.\\u000aA continuación se determinan las cinéticas de biodegradación de seis transportadores de tintura. Utilizando dos de estos carriers se han preparado unos efluentes sintéticos, estudiándose su depuración en una planta piloto de fangos activados

Martí Crespi Rosell; José Cegarra Sánchez

1970-01-01

365

DDRRAAFFTT v. 19-Apr-2000 Page 1 of 3  

E-print Network

hombre = man mujer = woman otra/o = another otra vez = again repita = repeat ronda = round (of drinks Llegues and move on to next P [3x8] Group G Evelyn q, M / CBL [2x8] 3-Way Stop 3-Way Stop y la Otra Coca-Cola © behind Coca-Cola por Atras seven Siete p Siete con Coca-Cola Siete Moderno Group H El Uno RRH âwalk 2 (W

Aslaksen, Helmer

366

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

NASA Technical Reports Server (NTRS)

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.

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

1997-01-01

367

Calculo III, ago-dic 2011. Tarea num. 13  

E-print Network

radio del c'rculo. Problemas 1. Sea c > 0. Demuestra que la elipse con focos (-c, 0), (c, 0) y suma de elipse centrada en el origen, luego una rotaci´on, (x, y) (ax + by, -bx + ay) con a2 + b2 = 1, manda uno una ecuaci´on cuadr´atica para la elipse que (i) pasa por (3, 2), (4, 1), tiene centro en el origen y

Bor, Gil

368

GEOMETRIA DE CURVAS Y SUPERFICIES Ejercicio 1 Calcula una curva parametrizada, : I R R2  

E-print Network

R2 , cuya traza sea una circunferencia de radio uno y tal que (t) recorra dicha circunferencia en parametrizada. Si (to) es el punto de la traza de mas pr´oximo al origen, prueba que (to) y (to) son´on por el arco de una circunferencia de radio r. Ejercicio 7 Calcula una parametrizaci´on por el arco de

Milán, Francisco

369

Examen Parcial de Ecuaciones Diferenciales Fecha: 31 de octubre de 2011 Depositado en www.ma1.upc.edu/ed/ Tiempo: 75 minutos  

E-print Network

radio R y densidad superficial constante 0 respecto un eje que pasa por su centro. Indicaci´on: Podeis en el origen: S = {(x, y, z) R3 : x2 +y2 +z2 = R2 } y la parametrizamos usando la longitud y la2 obtenido al quitar tres discos de radio uno con centros en (-3, 0), (0, 0) y (3, 0) del disco de

Ramírez-Ros, Rafael

370

Trabajo Practico 2 Matematica Aplicada (1) Sea f(r) = 1  

E-print Network

superficie esf´erica centrada en (1, 1, 1) y de radio uno. (Usar Teorema de Gauss). ¿Cu´al es el flujo a trav´es de cualquier superficie cerrada que no deje el origen en el interior? (3) Sea V (r) = - r r3 . (a) Calcular el flujo de V a trav´es de la superficie esf´erica centrada en 0 = (0, 0, 0) y radio unitario. (b

Morin, Pedro

371

La realidad existencial y 'la realidad creada' en Pirandello y Salvador Novo  

E-print Network

FALL 1968 5 La realidad existencial y "la realidad creada" en Pirandello y Salvador Novo ALYCE DE KUEHNE Yocasta, o casi de Salvador Novo, uno de los escritores más estimados y versátiles de México, alienta dos resortes teatrales muy.... Algunos genios del teatro—Shakespeare y Sófocles, por ejemplo— explotaron temas ajenos y hasta adoptaron los mismos nombres de personajes de antecesores suyos. Y esto no es el caso de Novo. Es evidente que su punto de partida y su punto final coinciden...

Kuehne, Alyce de

1968-10-01

372

Compañía Nacional de Teatro: El trienio inicial  

E-print Network

Leoncio Martínez. Para 1987 monta La tempestad de William Shakespeare, Caín adolescente de Román Chalbaud y Una viuda para cuatro de Cario Goldoni. La es- cogencia del repertorio internacional ha sido mucho más acertada que la del repertorio nacional... Leon cio Martínez, cuya escogencia fue investigada exhaustivamente por Orlando Rodríguez, rescatando un género y unos dramaturgos precur sores. Mención aparte merece Acto cultural, obra cumbre no sólo de la dramaturgia venezolana sino...

Palamides, Costa

1988-04-01

373

Latin American Theatre Review, Volume 30, Number 1: Recent Publications, Materials Received and Current Bibliography  

E-print Network

) tiempo de barrilete; Nada a Pehuajó, in addition to title play.] . Los reyes. Buenos Aires: Editorial Sudamericana, 1970 [quinta edición, 1995]. Daneri, Alberto. Teatro de soledad (La búsqueda, Uno del montón, Juego de cuatro o El antiamor, Matar las..., Cucha de almas, Remanente de invierno, La tiniebla, Entretanto las grandes urbas.] Teatro argentino contemporáneo: Antología. Madrid: Fondo de Cultura Económica, 1992. [Prologue and chronology by Gerardo Fernández and Olga Cosentino; author, play...

1996-10-01

374

Desde Chile  

E-print Network

FALL 1983 65 Desde Chile• . . Héctor Noguera, María de la Luz Hurtado, y Gustavo Meza En los últimos años, la dramaturgia chilena ha retomado vitalidad, siendo uno de los lugares privilegiados donde se realiza una reflexión crítica acerca de la.... El Teatro Nacional de la Universidad de Chile presenta, por su parte, Mama Rosa de Fernando Debesa, y el Teatro de Comediantes con el Teatro Pedro de la Barra llevan casi un año exhibiendo La remolienda de Alejandro Sieveking. Isidora Aguirre...

Noguera, Hé ctor; Hurtado, Marí a de la Luz; Meza, Gustavo

1983-10-01

375

MRO/CRISM Observations of Putative Paleolakes on Mars: Evidence of Water-related Activity  

NASA Astrophysics Data System (ADS)

Putative paleolakes in Martian impact craters have been the subject of local and regional studies as valuable targets for exploration [1 and references therein] since they should provide information about the dynamics of the sedimentary processes and the climate under which they were formed. We identified 20 sites from the 222 suggested by Orofino et al. [2,3] based upon them having: well-developed, regular, and well-defined edges; no evidence of major modification due to subsequent impact; diameters >20 km; and inlet channels with a length > the crater diameter. MRO/CRISM [4] data have previously been used to identify hydrated/hydroxylated materials in other putative paleolakes on Mars [e.g. 5 and references therein]. Here we report our initial analyses of CRISM observations for 10 of the 20 putative paleolakes identified above using spectral data spanning the ~1-2.5 micrometer range, to evaluate the possible presence of mineral spectral signatures indicative of the past presence of water. Such minerals include hydrated/hydroxylated silicates, hydrous sulfates, and hydrous and/or anhydrous carbonates. Spectra from one site provide evidence for features near 1.4, 2.38 and possibly near 2 micrometers. Such features in CRISM [4] data have previously been attributed to hydrated minerals [e.g. 5,6]. These spectra are closely associated with the various morphological features within the putative paleolakes. Although the numbers are small these results suggest ~10% of the putative paleolakes observed as part of our effort exhibit spectral behavior that is consistent with aqueous activity in these locations. [1] Cabrol, N. & E. Grin (1999) Icarus, 142, 160-172 [2] Orofino, V. et al. (2004) Proceedings Planetary Science: Fifth Italian meeting, A. Blanco, E. Dotto, and V. Orofino Eds., pp. 103-108, Alenia Spazio, Gallipoli, Italy [3] Orofino, V. et al. (2009) Icarus, 200, 426-435 [4] Murchie, S. et al. (2007) J. Geophys. Res., 112, E05S03 [5] Murchie, S. et al. (2009), J. Geophys. Res., in press [6] Mustard, J.F. et al. (2008) Nature, 454, 305-309 GM and TLR acknowledge support for this research from NASA’s Mars Data Analysis Program.

Roush, T. L.; Marzo, G.; Fonti, S.; Orofino, V.; Blanco, A.

2009-12-01

376

Space Radar Image of Manaus, Brazil  

NASA Technical Reports Server (NTRS)

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 companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

1999-01-01

377

Space Radar Image of Raco Biomass Map  

NASA Technical Reports Server (NTRS)

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 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.

1999-01-01

378

Space Radar Image of Hong Kong, China  

NASA Technical Reports Server (NTRS)

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 science, operations and data processing of X-SAR.

1994-01-01

379

Space Radar Image of Niya ruins, Taklamakan desert  

NASA Technical Reports Server (NTRS)

This radar image is of an area thought to contain the ruins of the ancient settlement of Niya. It is located in the southwestern corner of the Taklamakan Desert in China's Sinjiang Province. This oasis was part of the famous Silk Road, an ancient trade route from one of China's earliest capitols, Xian, to the West. The image shows a white linear feature trending diagonally from the upper left to the lower right. Scientists believe this newly discovered feature is a man-made canal which presumably diverted river waters toward the settlement of Niya for irrigation purposes. The image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 106th orbit on April 16, 1994, and is centered at 37.78 degrees north latitude and 82.41 degrees east longitude. The false-color radar image was created by displaying the C-band (horizontally transmitted and received) return in red, the L-band (horizontally transmitted and received) return in green, and the L-band (horizontally transmitted and vertically received) return in blue. Areas in mottled white and purple are low-lying floodplains of the Niya River. Dark green and black areas between river courses are higher ridges or dunes confining the water flow. 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), 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 Forschungsanstaltfuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

1999-01-01

380

Color Image of Death Valley, California from SIR-C  

NASA Technical Reports Server (NTRS)

This radar image shows the area of Death Valley, California and the different surface types in the area. Radar is sensitive to surface roughness with rough areas showing up brighter than smooth areas, which appear dark. This is seen in the contrast between the bright mountains that surround the dark, smooth basins and valleys of Death Valley. The image shows Furnace Creek alluvial fan (green crescent feature) at the far right, and the sand dunes near Stove Pipe Wells at the center. Alluvial fans are gravel deposits that wash down from the mountains over time. Several other alluvial fans (semicircular features) can be seen along the mountain fronts in this image. The dark wrench-shaped feature between Furnace Creek fan and the dunes is a smooth flood-plain which encloses Cottonball Basin. Elevations in the valley range from 70 meters (230 feet) below sea level, the lowest in the United States, to more than 3,300 meters (10,800 feet) above sea level. Scientists are using these radar data to help answer a number of different questions about Earth's geology including how alluvial fans form and change through time in response to climatic changes and earthquakes. The image is centered at 36.629 degrees north latitude, 117.069 degrees west longitude. Colors in the image represent different radar channels as follows: red =L-band horizontally polarized transmitted, horizontally polarized received (LHH); green =L-band horizontally transmitted, vertically received (LHV) and blue = CHV.

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).

1999-01-01

381

Space Radar Image of Kennedy Space Center, Florida  

NASA Technical Reports Server (NTRS)

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 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.

1999-01-01

382

Space Radar Image of Raco Vegetation Map  

NASA Technical Reports Server (NTRS)

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 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.

1999-01-01

383

Space Radar Image of San Francisco, California  

NASA Technical Reports Server (NTRS)

This is a radar image of San Francisco, California, taken on October 3,1994. The image is about 40 kilometers by 55 kilometers (25 miles by 34 miles) with north toward the upper right. Downtown San Francisco is visible in the center of the image with the city of Oakland east (to the right) across San Francisco Bay. Also visible in the image is the Golden Gate Bridge (left center) and the Bay Bridge connecting San Francisco and Oakland. North of the Bay Bridge is Treasure Island. Alcatraz Island appears as a small dot northwest of Treasure Island. This image 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 56. The image is centered at 37 degrees north latitude, 122degrees west longitude. This single-frequency SIR-C image was obtained by the L-band (24 cm) radar channel, horizontally transmitted and received. Portions of the Pacific Ocean visible in this image appear very dark as do other smooth surfaces such as airport runways. Suburban areas, with the low-density housing and tree-lined streets that are typical of San Francisco, appear as lighter gray. Areas with high-rise buildings, such as those seen in the downtown areas, appear in very bright white, showing a higher density of housing and streets which run parallel to the radar flight track. 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), C-band (6 cm) and X-band (3cm). 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.

1994-01-01

384

Space Radar Image of Kilauea, Hawaii - interferometry 1  

NASA Technical Reports Server (NTRS)

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 Componenti Elettronici (IRECE) at the University of Naples was a partner in interferometry analysis.

1994-01-01

385

space Radar Image of Long Valley, California  

NASA Technical Reports Server (NTRS)

An area near Long Valley, California, was mapped by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar aboard the space shuttle Endeavor on April 13, 1994, during the first flight of the radar instrument, and on October 4, 1994, during the second flight of the radar instrument. The orbital configurations of the two data sets were ideal for interferometric combination -- that is overlaying the data from one image onto a second image of the same area to create an elevation map and obtain estimates of topography. Once the topography is known, any radar-induced distortions can be removed and the radar data can be geometrically projected directly onto a standard map grid for use in a geographical information system. The 50 kilometer by 50 kilometer (31 miles by 31 miles) map shown here is entirely derived from SIR-C L-band radar (horizontally transmitted and received) results. The color shown in this image is produced from the interferometrically determined elevations, while the brightness is determined by the radar backscatter. The map is in Universal Transverse Mercator (UTM) coordinates. Elevation contour lines are shown every 50 meters (164 feet). Crowley Lake is the dark feature near the south edge of the map. The Adobe Valley in the north and the Long Valley in the south are separated by the Glass Mountain Ridge, which runs through the center of the image. The height accuracy of the interferometrically derived digital elevation model is estimated to be 20 meters (66 feet) in this 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.

1994-01-01

386

Space Radar Image of Manaus, Brazil  

NASA Technical Reports Server (NTRS)

These two images were created using data from the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR). On the left is a false-color image of Manaus, Brazil acquired April 12, 1994, onboard space shuttle Endeavour. In the center of this image is the Solimoes River just west of Manaus before it combines with the Rio Negro to form the Amazon River. The scene is around 8 by 8 kilometers (5 by 5 miles) with north toward the top. The radar image was produced in L-band where red areas correspond to high backscatter at HH polarization, while green areas exhibit high backscatter at HV polarization. Blue areas show low backscatter at VV polarization. The image on the right is a classification map showing the extent of flooding beneath the forest canopy. The classification map was developed by SIR-C/X-SAR science team members at the University of California,Santa Barbara. The map uses the L-HH, L-HV, and L-VV images to classify the radar image into six categories: Red flooded forest Green unflooded tropical rain forest Blue open water, Amazon river Yellow unflooded fields, some floating grasses Gray flooded shrubs Black floating and flooded grasses Data like these help scientists evaluate flood damage on a global scale. Floods are highly episodic and much of the area inundated is often tree-covered. 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.

1999-01-01

387

SPace Radar Image of Fort Irwin, California  

NASA Technical Reports Server (NTRS)

This image of Fort Irwin in California's Mojave Desert compares interferometric radar signatures topography -- data that were obtained by multiple imaging of the same region to produce three-dimensional elevation maps -- as it was obtained on October 7-8, 1994 by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar aboard the space shuttle Endeavour. Data were acquired using the L-band (24 centimeter wavelength) and C-band (6 centimeter wavelength). The image covers an area about 25 kilometers by 70 kilometers (15.5 miles by 43 miles). North is to the lower right of the image. The color contours shown are proportional to the topographic elevation. With a wavelength one-fourth that of the L-band, the results from the C-band cycle through the color contours four times faster for a given elevation change. Detailed comparisons of these multiple frequency data over different terrain types will provide insights in the future into wavelength-dependent effects of penetration and scattering on the topography measurement accuracy. Fort Irwin is an ideal site for such detailed digital elevation model comparisons because a number of high precision digital models of the area already exist from conventional measurements as well as from airborne interferometric SAR data. 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.

1994-01-01

388

North Central Thailand  

NASA Technical Reports Server (NTRS)

This radar image shows the dramatic landscape in the Phang Hoei Range of north central Thailand, about 40 kilometers (25 miles) northeast of the city of Lom Sak. The plateau, shown in green to the left of center, is the area of Phu Kradung National Park. This plateau is a remnant of a once larger plateau, another portion of which is seen along the right side of the image. The plateaus have been dissected by water erosion over thousands of years. Forest areas appear green on the image; agricultural areas and settlements appear as red and blue. North is toward the lower right. The area shown is 38 by 50 kilometers (24 by 31 miles) and is centered at 16.96 degrees north latitude, 101.67 degrees east longitude. Colors are assigned to different radar frequencies and polarizations as follows: red is L-band horizontally transmitted and horizontally received; green is L-band horizontally transmitted and vertically received; blue is C-band horizontally transmitted and vertically received. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture (SIR-C/X-SAR) imaging radar on October 3, 1994, when it flew aboard the space shuttle Endeavour. SIR-C/X-SAR is a joint mission of the U.S./German and Italian space agencies.

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.

1998-01-01

389

Space Radar Image of Central African Gorilla Habitat  

NASA Technical Reports Server (NTRS)

This is a false-color radar image of Central Africa, showing the Virunga Volcano chain along the borders of Rwanda, Zaire and Uganda. This area is home to the endangered mountain gorillas. This C-band L-band image was acquired on April 12, 1994, on orbit 58 of space shuttle Endeavour by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR). The area is centered at about 1.75 degrees south latitude and 29.5 degrees east longitude. The image covers an area 58 kilometers by 178 kilometers (48 miles by 178 miles). The false-color composite is created by displaying the L-band HH return in red, the L-band HV return in green and the C-band HH return in blue. The dark area in the bottom of the image is Lake Kivu, which forms the border between Zaire (to the left) and Rwanda (to the right). The airport at Goma, Zaire is shown as a dark line just above the lake in the bottom left corner of the image. Volcanic flows from the 1977 eruption of Mt. Nyiragongo are shown just north of the airport. Mt. Nyiragongo is not visible in this image because it is located just to the left of the image swath. Very fluid lava flows from the 1977 eruption killed 70 people. Mt. Nyiragongo is currently erupting (August 1994) and will be a target of observation during the second flight of SIR-C/X-SAR. The large volcano in the center of the image is Mt. Karisimbi (4,500 meters or 14,800 feet). This radar image highlights subtle differences in the vegetation and volcanic flows of the region. The faint lines shown in the purple regions are believed to be the result of agriculture terracing by the people who live in the region. The vegetation types are an important factor in the habitat of the endangered mountain gorillas. Researchers at Rutgers University in New Jersey and the Dian Fossey Gorilla Fund in London will use this data to produce vegetation maps of the area to aid in their study of the remaining 650 gorillas in the region. 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.

1999-01-01

390

Space Radar Image of Namib Desert in Southern Namib  

NASA Technical Reports Server (NTRS)

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 Spaziale Italiana (ASI), with the Deutsche Forschungsanstaltfuer Luft und Raumfahrt e.v. (DLR), he major partner in science, operations and data processing of X-SAR.

1999-01-01

391

Space Radar Image of Mammoth, California in 3-D  

NASA Technical Reports Server (NTRS)

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).

1999-01-01

392

ESA Press Event: See Mars Express before its departure to the Red Planet  

NASA Astrophysics Data System (ADS)

There will be ten participants: four ESA astronauts (Pedro Duque, Leopold Eyharts, Paolo Nespoli and Thomas Reiter), four Japanese astronauts from NASDA (Takao Doi, Koichi Wakata, Satoshi Furukawa and Aikihido Hoshide) and two NASA astronauts (Nicole Passonno Stott and Stephanie D. Wilson). The main objective of this training session is to prepare the astronauts for the tasks they will have to perform when the Japanese experiment module (JEM) and ESA's Columbus laboratory are docked with the core of the International Space Station over the years ahead. After completing their training and certification, the astronauts will be assigned to long-duration missions to the ISS. The advanced training at the EAC will focus on the Columbus systems and the Automated Transfer Vehicle (ATV). It will consist of 24 classroom lectures on the Columbus and ATV systems and 4 on payloads, and 2 sessions in the Columbus Trainer. Instructors are being provided by Astrium for the Columbus systems and Alenia Spazio for the ATV, with ESA/EAC staff as mentors for the Columbus payloads. The astronauts are scheduled to visit Astrium in Bremen on 30 August to get acquainted with the flight unit of the Columbus laboratory module currently undergoing integration. This group of astronauts started their advanced training in April 2001 at NASA's Johnson Space Center (JSC), Houston, where they attended a first course on the US segment of the International Space Station. This was followed by training on the JEM system at NASDA's Tsukuba Space Center, Japan, in December 2001 - January 2002 and additional training at the JSC in May 2002. At the beginning of next year the group will be returning to Tsukuba for training on Japanese payloads. Hands-on sessions on Columbus Payload Training Models are scheduled for the second half of 2003, again at ESA's European Astronaut Centre. On Thursday 5 September, between 16:30 and 18:30 hrs, the astronauts and other ESA specialists will be available for interviews. Media representatives interested in meeting them are requested to complete the attached reply form and to fax it by Tuesday 3 September to Maren Stock at ESA/EAC.

2002-08-01

393

Space Radar Image Isla Isabela in 3-D  

NASA Technical Reports Server (NTRS)

This is a three-dimensional view of Isabela, one of the Galapagos Islands located off the western coast of Ecuador, South America. This view was constructed by overlaying a Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) image on a digital elevation map produced by TOPSAR, a prototype airborne interferometric radar which produces simultaneous image and elevation data. The vertical scale in this image is exaggerated by a factor of 1.87. The SIR-C/X-SAR image was taken on the 40th orbit of space shuttle Endeavour. The image is centered at about 0.5 degree south latitude and 91 degrees west longitude and covers an area of 75 by 60 kilometers (47 by 37 miles). The radar incidence angle at the center of the image is about 20 degrees. The western Galapagos Islands, which lie about 1,200 kilometers (750 miles)west of Ecuador in the eastern Pacific, have six active volcanoes similar to the volcanoes found in Hawaii and reflect the volcanic processes that occur where the ocean floor is created. Since the time of Charles Darwin's visit to the area in 1835, there have been more than 60 recorded eruptions on these volcanoes. This SIR-C/X-SAR image of Alcedo and Sierra Negra volcanoes shows the rougher lava flows as bright features, while ash deposits and smooth pahoehoe lava flows appear dark. Vertical exaggeration of relief is a common tool scientists use to detect relationships between structure (for example, faults, and fractures) and topography. 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).

1999-01-01

394

Radar Image of Galapagos Island  

NASA Technical Reports Server (NTRS)

This is an image showing part of Isla Isabella in the western Galapagos Islands. It was taken by the L-band radar in HH polarization from the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar on the 40th orbit of the space shuttle Endeavour. The image is centered at about 0.5 degree south latitude and 91 degrees west longitude and covers an area of 75 by 60 kilometers (47 by 37 miles). The radar incidence angle at the center of the image is about 20 degrees.

The western Galapagos Islands, which lie about 1,200 kilometers (750 miles) west of Ecuador in the eastern Pacific, have six active volcanoes similar to the volcanoes found in Hawaii. Since the time of Charles Darwin's visit to the area in 1835, there have been over 60 recorded eruptions of these volcanoes. This SIR-C/X-SAR image of Alcedo and Sierra Negra volcanoes shows the rougher lava flows as bright features, while ash deposits and smooth pahoehoe lava flows appear dark. A small portion of Isla Fernandina is visible in the extreme upper left corner of the image.

The Galapagos Islands are one of the SIR-C/X-SAR supersites and data of this area will be taken several times during the flight to allow scientists to conduct topographic change studies and to search for different lava flow types, ash deposits and fault lines.

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).

1994-01-01

395

MPLM On-Orbit Interface Dynamic Flexibility Modal Test  

NASA Technical Reports Server (NTRS)

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 performed to better characterize its behavior. The CBM mounting flange is the only remaining structure of the MPLM that no test data was available. This paper discusses the implementation of the residual flexibility modal testing technique on the CBM flange and the modal test of the forward cone panels.

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

2001-01-01

396

A project for a solar sail propelled spaceship  

NASA Astrophysics Data System (ADS)

The idea of using the solar radiation pressure for propelling a space vehicle dates back to the 1920s and was suggested by the Russian space pioneer Konstantin Tsiolkovsky and the Russian engineer Fridrickh Arturovich Tsander. NASA began technology studies in the mid-1960s in which various design and technology requirements were examined for solar sailing vehicles without reference to specific missions. In 1977 a Jet Propulsion laboratory team undertook a 1-year study under a NASA contract to assess the practical possibilities of carrying out a rendezvous mission to Halley's Comet using a solar sail. Despite the confidence of the technical team and the completion of a valid preliminary design, NASA thought the technology of solar sailing was not sufficiently 'mature' to be implemented in time for a 1981 launch to the comet and the project was abandoned. Efforts to design and develop the solar sailing concept have been continued since then by private organizations i.e. the Union pour la Promotion de la Propulsion Photonique (U3P) in France, and the World Space Foundation in the United States. The latter has already fabricated a prototype square sail of about 700 sq m, and is seeking NASA support for flying a test vehicle. U3P is also seeking sponsorship for its design and development of solar sailing spacecraft and has proposed a race to the Moon between solar sails. In December 1988 the Christopher Columbus Quincentenary Jubilee Commission, a Presidential commission created by the Congress of the United States, approved the establishment of a Columbus 500 Space Sail Cup competition to commemorate his voyage to the Americas. The intent of the Space Sail Cup was to bring about the launch of at least three solar sail vehicles representing the Americas, Europe and Asia, selected among all the presented projects, that would have travelled from a High Earth Orbit (HEO) toward the Moon and then toward Mars. The space company then called Aeritalia Gruppo Sistemi Spaziali (today Alenia Spazio) produced the contest-winning solar sail design among the European countries.

Bevilacqua, Franco; Cesare, Stefano

1994-02-01

397

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

NASA Technical Reports Server (NTRS)

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.

Grandgenett, Neal

2000-01-01

398

Ethical limitations in patenting biotechnological inventions.  

PubMed

In order to connect ethical considerations with practical limits to patentability, the moral judgement should possibly move from the exploitation of the invention to the nature and/or objectives of Research and Development (R&D) projects which have produced it: in other words, it appears quite reasonable and logical that Society is not rewarding unethical R&D activities by granting intellectual property rights. As far as biotechnology R&D is concerned, ethical guidance can be derived from the 1996 Council of EuropeOs OConvention for the protection of human rights and dignity of the human being with regard to the application of biology and medicineO, whose Chapter V - Scientific research - provides guidelines on: i. protection of persons undergoing research (e.g. informed consent); ii. protection of persons not able to consent to research; iii. research on embryos in vitro. As far as the specific point of patenting biotechnology inventions is concerned, the four exclusions prescribed by Directive 98/44/EC (i.e. human cloning, human germ-line gene therapy, use of human embryos for commercial purposes, unjustified animal suffering for medical purposes) are all we have in Europe in terms of ethical guidance to patentability. In Italy, in particular, we certainly need far more comprehensive legislation, expressing SocietyOs demand to provide ethical control of modern biotechnology. However it is quite difficult to claim that ethical concerns are being raised by currently awarded biotechnology patents related to living organisms and material thereof; they largely deal with the results of genomic R&D, purposely and usefully oriented toward improving health-care and agri-food processes, products and services. ONo patents on lifeOO can be an appealing slogan of militants against modern biotechnology, but it is far too much of an over-simplified abstraction to become the Eleventh Commandment our Society. PMID:10607853

Lugagnani, V

1999-01-01

399

 

PubMed

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

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

2009-01-01

400

NASA Nebraska Space Grant 5 Year Proposal  

NASA Technical Reports Server (NTRS)

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.

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

2004-01-01

401

Caring for Important Papers after a Flood (Spanish)  

E-print Network

bolsa de pl?stico sellada en el congelador para evitar que se enmohezcan. Separe las hojas con papel encerado para que no se peguen. ? Limpie las portadas de los libros con una soluci?n de alcohol y agua en partes iguales. ? Coloque los libros sobre... sus lomos con las hojas separadas; cuando est?n parcialmente secos, col?quelos uno sobre otro y presi?nelos para evitar que las hojas se arruguen. Tambi?n puede usar una plancha para secarlos y evitar el moho; use un ventilador para acelerar el...

FCS Project Team - FDRM UNIT

2007-09-30

402

NASA EPSCoR Nebraska Preparation Grant: Year 1  

NASA Technical Reports Server (NTRS)

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.

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

403

Primer Festival de Teatro Nuevo de Latinoamerica  

E-print Network

desenlace, sirvió de apoyo al director y a su grupo de intérpretes para realizar un trabajo de "equipo" en el que cada uno de los participantes aportaba ideas, sugerencias y hasta ilustraciones escénicas para enriquecer el contenido de la obra. De esta..., establecieron un retorno a esquemas habituales en el teatro de México, tanto en el estatismo de la escena, como en una exposición explícita y llana de los textos. Las pinzas de Román Chalbaud muestra un juego en el que se ven implicados un obispo, un médico...

Soló rzano, Carlos

1969-04-01

404

Competencias en ética biocéntrica  

PubMed Central

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

Stepke, Fernando Lolas

2013-01-01

405

Safe Handling of Fresh Cantaloupe (Spanish)  

E-print Network

los melones frescos con frecuencia y s?lo compre los que vaya a usar en unos pocos d?as. Melones frescos: ? Permiten que lo presione levemente ? Tienen c?scara amarilla ? Tienen un aroma fresco en la punta en donde estaba pegado al tallo ? Tienen... una c?scara exterior sana y libre de roturas o cortaduras Los melones da?ados se descomponen r?pidamente y podr?an portar pat?genos que causan enfermedades alimenticias. Evite los melones que: ? Tengan una c?scara exterior da?ada o cortada...

Scott, Amanda

2008-09-05

406

Safe Handling of Fresh Tomatoes (Spanish)  

E-print Network

frescos con frecuen- cia y solo compre los que va a usar en unos pocos d?as. Compre tomates que: ? Tienen la c?scara brillante y lisa ? Tienen la c?scara firme ? Tienen un color rojo, sano y un aroma fresco en la punta del tallo Evite los tomates que... cucharadita de cloro casero en 1 cuarto de gal?n de agua. Despu?s, lave todos los tomates enteros vigo- rosamente en un fregadero o lavaplatos limpio con agua limpia que cae del grifo, aunque no planee comerse las c?scaras. Restriegue suave- mente cada...

Scott, Amanda

2008-09-05

407

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

PubMed

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. PMID:25705446

Kawasaki, Takeshi; Kitazawa, Takafumi

2015-01-01

408

Pre-transplant MELD and sodium MELD scores are poor predictors of graft failure and mortality after liver transplantation  

Microsoft Academic Search

Background  Incorporating serum sodium concentrations into the model for end-stage liver disease (MELD) score may increase its sensitivity\\u000a for identifying priority patients for orthotopic liver transplantation (OLT). We, therefore, evaluated and compared the ability\\u000a of the sodium MELD and MELD scores to predict graft and patient survival after OLT.\\u000a \\u000a \\u000a \\u000a \\u000a Methods  The United Network for Organ Sharing (UNOS) registry includes all US adult

Jacek B. CywinskiEdward; Edward J. Mascha; Jing You; Daniel I. Sessler; Leonardo Kapural; Maged Argalious; Brian M. Parker

409

Crystal structure of dioxidobis(pentane-2,4-dionato-?2 O,O?)[1-phenyl-3-(pyridin-4-yl)propane-?N]uranium(VI)  

PubMed Central

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

Kawasaki, Takeshi; Kitazawa, Takafumi

2015-01-01

410

Estructura orbital en el Problema Restringido Rectilíneo Isósceles  

NASA Astrophysics Data System (ADS)

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.

Orellana, R. B.

411

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

NASA Astrophysics Data System (ADS)

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.

Miloni, O.; Núñez, J.; Brunini, A.

412

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

NASA Astrophysics Data System (ADS)

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 ?s. 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.

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

2012-03-01

413

Stem Cell Differentiation Game  

NSDL National Science Digital Library

This game uses a modified Uno deck to review concepts related to stem cell research and diabetes. Specifically, it covers material in the "Pulse-Chase Primer," "Pancreatic Beta Cells," and "Microarrays and Stem Cells" activities from the same resource which may or may not be necessary to complete prior to this activity (depending on learner's prior knowledge). Learners accumulate points and answer questions about stem cells, development, and microarrays so that they can be the first to differentiate into a pancreatic beta (?) cell. This activity is recommended for learners studying Biology at the High School (honors, IB and AP) or Undergraduate level.

2013-07-30

414

Autores y tendencias del teatro ecuatoriano en la década de los 90  

E-print Network

además aporten al desarrollo y consolidación de un teatro nacional. Son contados, sin embargo, los grupos que logran llenar las salas de forma permanente. De cualquier manera, la calidad de las obras nacionales presentadas a fines de la década nos deja... de la década se ha producido una decantación y consolidación de unos pocos grupos, los más fuertes y estables, y la disolución de los grupos más débiles; sea por su juventud, es decir, pocos años de vida, o por falta de desarrollo técnico. La...

Breilh, Alfredo

2000-10-01

415

Performance reviews, book reviews & recent publications  

E-print Network

ensayos críticos—la monografía de Judith Weiss enfoca específicamente la actividad realizada por el Teatro GALA, Teatro Nuestro y LatiNegro en los FALL 1991 171 sectores latinos de Mount Pleasant y Adams-Morgan, Washington D.C. De este modo ambos... inglés. Contiene cuatro secciones: análisis demográfico de la inmigración latinoamericana a los sectores latinos de Washington, D.C. (Adams-Morgan y Mount Pleasant) y un enfoque historiográfico de cada uno de los tres grupos. En el bosquejo...

1991-10-01

416

Latin American Theatre Review, Volume 26, Number 1: Performance reviews  

E-print Network

Sabina Berman: La conquista de México para seis actores Águila o sol fue escrita en un estilo que recaptura dos tradiciones mexicanas: la tradición del teatro cómico de carpa y la tradición de los códices indígenas, donde la figura dibujada de un... español puede representar a todo un ejército, o un fraile puede representar a la institución de la iglesia católica. Contiene catorce cuadros, cada uno inspirado en la imagen de algún códice que narra la visión indígena de la conquista. Estos son: "Los...

1992-10-01

417

El laberinto de la indigenidad: Cómo se determina quién es indígena maya ch’orti’ en Guatemala, Honduras y El Salvador  

E-print Network

1 El laberinto de la indigenidad1 : Cómo se determina quién es indígena maya ch’orti’ en Guatemala, Honduras y El Salvador The Labyrinth of Indigeneity: How Does One Determine Who Is an Indigenous Ch’ortí Maya in Guatemala, Honduras and El... Salvador Brent E. Metz* bmetz@ku.edu Resumen Determinar quién es indígena no parece ser ningún problema, pero cuando se va a la región maya ch’orti’ de Guatemala, Honduras y El Salvador, pronto uno se da cuenta que...

Metz, Brent

2012-01-01

418

El teatro como reflexión colectiva: Conversación con Sergio Corrieri  

E-print Network

grandes rasgos, por supuesto. Por nuestra convivencia en la zona y por los multiples canales naturales que eso nos brinda, nosotros estamos actualizados de la problemática. Aparte, con el tiempo, el Escambray ha ido perdiendo artistas particulares en el... gente del Escambray se nos queja. Uno de los aspectos más interesantes, a mi modo de ver, de la experiencia del Teatro Escambray es que todo este proceso se ha ido haciendo sobre la marcha, ha ido surgiendo, como tú decías hace poco, de la práctica...

Luzuriaga, Gerardo

1983-04-01

419

Bathymetric survey of the nearshore from Belle Pass to Caminada Pass, Louisiana: methods and data report  

USGS Publications Warehouse

The U.S. Geological Survey (USGS), in cooperation with the University of New Orleans (UNO) and the Louisiana Department of Natural Resources (LDNR), conducted a high-resolution, single-beam bathymetric survey along the Louisiana southern coastal zone from Belle Pass to Caminada Pass. The survey consisted of 483 line kilometers of data acquired in July and August of 2005. This report outlines the methodology and provides the data from the survey. Analysis of the data and comparison to a similar bathymetric survey completed in 1989 show significant loss of seafloor and shoreline retreat, which is consistent with previously published estimates of shoreline change in the study area.

DeWitt, Nancy T.; Flocks, James G.; Hansen, Mark; Kulp, Mark; Reynolds, B.J.

2007-01-01

420

El consumo de tabaco y la exposición al humo de tabaco en el ambiente durante el embarazo pueden poner en peligro la salud de mujeres y niños en países en desarrollo  

Cancer.gov

Las conclusiones de un estudio del NIH indican que las tasas de consumo de tabaco durante el embarazo, así como la exposición de mujeres embarazadas y de sus niños al humo de tabaco en el ambiente constituyen amenazas significativas para la salud en varios países de ingresos medios y bajos. En unos pocos de los países en donde se tomaron las muestras, incluso algunos de América Latina, los índices de exposición al humo de tabaco probablemente ya son lo suficientemente altos como para justificar una preocupación considerable.

421

RELACIÓN MÉDICO PACIENTE: DERECHOS DEL ADULTO MAYOR  

PubMed Central

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

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

2009-01-01

422

Nebraska Initiative for Aerospace Research and Industrial Development (NIARID)  

NASA Technical Reports Server (NTRS)

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.

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

2002-01-01

423

Estudio de exámenes selectivos de detección de cáncer en los Estados Unidos indica que las pruebas anuales para detectar cáncer de próstata no tienen un beneficio en la mortalidad por esta enfermedad  

Cancer.gov

Un nuevo e importante informe de un estudio, diseñado para proporcionar respuestas sobre la eficacia de los exámenes de detección de cáncer de próstata, fue difundido hoy por el Estudio de Exámenes Selectivos de Detección de Cáncer de Próstata, Pulmón, Colorrectal y Ovarios (Prostate, Lung, Colorectal, and Ovarian, PLCO), e indicó que los seis exámenes de detección de cáncer de próstata que se hicieron en seis años (uno cada año) dieron como resultado más diagnósticos de la enfermedad, pero no menos muertes por cáncer de próstata.

424

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

NASA Technical Reports Server (NTRS)

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.

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

2003-01-01

425

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

NASA Technical Reports Server (NTRS)

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.

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

1999-01-01

426

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

E-print Network

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.

S. Basak; A. Bazavov; C. Bernard; C. DeTar; E. Freeland; J. Foley; Steven Gottlieb; U. M. Heller; J. Komijani; J. Laiho; L. Levkova; J. Osborn; R. L. Sugar; A. Torok; D. Toussaint; R. S. Van de Water; R. Zhou; for the MILC Collaboration

2014-09-25

427

The cultural aspects of Aztec lexicon in Mexican Spanish  

E-print Network

angry (lit. 'to be made a chili' (pepper- hot). Hacerse chile con el culo. Being very angry but not being able to show it. 35 No le tenga miedo al chile aunque lo vea colorado. Don't fear something simply by the way it appears or Don't judge a...' could also be translated as 'to be afraid of one's own shadow' ). Valor is expr essed by many terms . Terms of Aztec origin are ser uno un chilti i u'In 'to be valiant' (~chilti 1 via = 'aeall hot pepper') aod tahar eda valor ue el ue se comi6 el...

Powell, James Woodward

1976-01-01

428

Argumentos renovadores de Roberto Arlt en el teatro argentino moderno  

E-print Network

le oigo decirlo). Lo único que diferencia a los hombres es su capacidad de soñar. Por el sueño se levanta la cerviz de la tierra, se vuela y finalmente, se pierde uno en el desvarío. . . . Recién aquí aparece lo social como responsable de que el... de literatura, sino escribiendo en or- gullosa soledad, libros que encierran la violencia de un "cross" a la man díbula. Sí, un libro tras otro y que los eunucos bufen. El porvenir es nuestro, triunfalmente nuestro. Y que el futuro lo diga. Al...

Rela, Walter

1980-04-01

429

Revista Iguanazul, Number 1  

E-print Network

unos días fue mi san- to y recibí regalos de todas partes: mezcal, tequila, capulines, cabritos, mariguana, anillos, cadenas, pieles, coches pistolas, ¿y de J ólybud que re- cibí? ¡Un esclavo! (Joseph se adormece. Canta): Ya se pueden ir Y no molestar... todos pue- dan ir a mi entierro con ropa ligera. Quiero ser enterrada en un campo entre dos árboles para que no me hagan sombra, que escarben mi tumba con las manos y no muy profundo, lo más importante es que deben en- terrarme desnuda, sin cajas...

Santopietro, Judith

430

Manual del espectrógrafo multifunción de Bosque Alegre  

NASA Astrophysics Data System (ADS)

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..

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

431

Europlanet Integrated and Distributed Information Service  

NASA Astrophysics Data System (ADS)

During the past decades the various disciplines in planetary sciences have developed to a very high international standard. But the collaboration between the different fields should be improved. To overcome the current fragmentation of the EU Planetary Science community and thereby to increase the scientific return of the related investment, the EU commission is funding via its Framework Program 7 the development of the "Europlanet Research Infrastructure -Europlanet RI". The Europlanet RI will consolidate the integration of the European Planetary Science community which started with Europlanet's FP6 project and will integrate major parts of the related distributed European infrastructure to be shared, fed and expanded by all planetary scientists. This infrastructure encompasses as diverse components as space exploration, ground-based observations, laboratory experiments and numerical modeling teams. Europlanet RI aims at bringing scientists from Europe and beyond together who are working in these fields, support the exchange of experts and ideas and make as many resources and data as possible available to the research community. A central part of Europlanet RI is the "Integrated and Distributed Information Service" or Europlanet-IDIS. The task of IDIS as central part of Europlanet is to provide an easy-to-use Web-based platform to locate teams and laboratories with special knowledge needed to support the own research activities, give access to the wealth of already available data, initiate new research activities needed to interpret accumulated data or to solve open questions, and to exploit synergies between space-based missions and capabilities of ground based observatories. It also offers to a wide range of teams and laboratories the possibility to share their data, advertise their capabilities and increase the scientific return by cooperation. IDIS is organized as an EU FP7 Support Activity, consisting of different access nodes which are connected by 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.g. the Technical Node at http://www.europlanet-idis.fi/

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

2009-04-01

432

Angkor, Cambodia  

NASA Technical Reports Server (NTRS)

This is an image of the area around the city of Angkor, Cambodia. The city houses an ancient complex of more than 60 temples dating back to the 9th century. The principal complex, Angkor Wat, is the bright square just left of the center of the image. It is surrounded by a reservoir that appears in this image as a thick black line. The larger bright square above Angkor Wat is another temple complex called Angkor Thom. Archeologists studying this image believe the blue-purple area slightly north of Angkor Thom may be previously undiscovered structures. In the lower right is a bright rectangle surrounded by a dark reservoir, which houses the temple complex Chau Srei Vibol. In its heyday, Angkor had a population of 1 million residents and was the spiritual center for the Khmer people until it was abandoned in the 15th century. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) on the 15th orbit of the space shuttle Endeavour on September 30, 1994. The image shows an area approximately 55 kilometers by 85 kilometers (34 miles by 53 miles) that is centered at 13.43 degrees north latitude and 103.9 degrees east longitude. The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the L-band (horizontally transmitted and vertically received); blue represents the C-band (horizontally transmitted and vertically received). The body of water in the south-southwest corner is Tonle Sap, Cambodia's great central lake. The urban area at the lower left of the image is the present-day town of Siem Reap. The adjoining lines are both modern and ancient roads and the remains of Angkor's vast canal system that was used for both irrigation and transportation. The large black rectangles are ancient reservoirs. Today the Angkor complex is hidden beneath a dense rainforest canopy, making it difficult for researchers on the ground to study 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).

1995-01-01

433

Space Radar Image of Kliuchevskoi, Russia  

NASA Technical Reports Server (NTRS)

This is an X-band seasonal image of the Maly Semlyachik volcano, which is part of the Karymsky volcano group on Kamchatka peninsula, Russia. The image is centered at 54.2 degrees north latitude and 159.6 degrees east longitude. This image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on April 9, 1994, during the first flight of the radar system, and on September 30, 1994, during the second flight. The image channels have been assigned the following colors: red corresponds to data acquired on April 9; green corresponds to data acquired on September 30; and blue corresponds to the ratio between data from April 9 and September 30, 1994. Kamchatka is twice as large as England, Scotland and Wales combined and is home to approximately 470,000 residents. The region is characterized by a chain of volcanoes stretching 800 kilometers (500 miles) across the countryside. Many of the volcanoes, including the active Maly Semlyachik volcano in this image, have erupted during this century. But the most active period in creating the three characteristic craters of this volcano goes back 20,000, 12,000 and 2,000 years ago. The highest summit of the oldest crater reaches about 1,560 meters (1,650 feet). The radar images reveal the geological structures of craters and lava flows in order to improve scientists' knowledge of these sometimes vigorously active volcanoes. This seasonal composite also highlights the ecological differences that have occurred between April and October 1994. In April the whole area was snow-covered and, at the coast, an ice sheet extended approximately 5 kilometers (3 miles) into the sea. The area shown surrounding the volcano is covered by low vegetation much like scrub. Kamchatka also has extensive forests, which belong to the northern frontier of Taiga, the boreal forest ecosystem. This region plays an important role in the world's carbon cycle. Trees require 60 years to 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.

1994-01-01

434

Space Radar Image of Weddell Sea Ice  

NASA Technical Reports Server (NTRS)

This is the first calibrated, multi-frequency, multi-polarization spaceborne radar image of the seasonal sea-ice cover in the Weddell Sea, Antarctica. The multi-channel data provide scientists with details about the ice pack they cannot see any other way and indicates that the large expanse of sea-ice is, in fact, comprised of many smaller rounded ice floes, shown in blue-gray. These data are particularly useful in helping scientists estimate the thickness of the ice cover which is often extremely difficult to measure with other remote sensing systems. The extent, and especially thickness, of the polar ocean's sea-ice cover together have important implications for global climate by regulating the loss of heat from the ocean to the cold polar atmosphere. The image was acquired on October 3, 1994, by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) onboard the space shuttle Endeavour. This image is produced by overlaying three channels of radar data in the following colors: red (C-band, HH-polarization), green (L-band HV-polarization), and blue (L-band, HH-polarization). The image is oriented almost east-west with a center location of 58.2 degrees South and 21.6 degrees East. Image dimensions are 45 kilometers by 18 kilometers (28 miles by 11 miles). Most of the ice cover is composed of rounded, undeformed blue-gray floes, about 0.7 meters (2 feet) thick, which are surrounded by a jumble of red-tinged deformed ice pieces which are up to 2 meters (7 feet) thick. The winter cycle of ice growth and deformation often causes this ice cover to split apart, exposing open water or 'leads'. Ice growth within these openings is rapid due to the cold, brisk Antarctic atmosphere. Different stages of new-ice growth can be seen within the linear leads, resulting from continuous opening and closing. The blue lines within the leads are open water areas in new fractures which are roughened by wind. The bright red lines are an intermediate stage of new-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.

1994-01-01

435

The GOCE end-to-end system simulator  

NASA Astrophysics Data System (ADS)

The idea of an end-to-end simulator was conceived in the early stages of the GOCE programme, as an essential tool for assessing the satellite system performance, that cannot be fully tested on the ground. The simulator in its present form is under development at Alenia Spazio for ESA since the beginning of Phase B and is being used for checking the consistency of the spacecraft and of the payload specifications with the overall system requirements, supporting trade-off, sensitivity and worst-case analyses, and preparing and testing the on-ground and in-flight calibration concepts. The software simulates the GOCE flight along an orbit resulting from the application of Earth's gravity field, non-conservative environmental disturbances (atmospheric drag, coupling with Earth's magnetic field, etc.) and control forces/torques. The drag free control forces as well as the attitude control torques are generated by the current design of the dedicated algorithms. Realistic sensor models (star tracker, GPS receiver and gravity gradiometer) feed the control algorithms and the commanded forces are applied through realistic thruster models. The output of this stage of the simulator is a time series of Level-0 data, namely the gradiometer raw measurements and spacecraft ancillary data. The next stage of the simulator transforms Level-0 data into Level-1b (gravity gradient tensor) data, by implementing the following steps: - transformation of raw measurements of each pair of accelerometers into common and differential accelerations - calibration of the common and differential accelerations - application of the post-facto algorithm to rectify the phase of the accelerations and to estimate the GOCE angular velocity and attitude - computation of the Level-1b gravity gradient tensor from calibrated accelerations and estimated angular velocity in different reference frames (orbital, inertial, earth-fixed); computation of the spectral density of the error of the tensor diagonal components (measured gravity gradient minus input gravity gradient) in order to verify the requirement on the error of gravity gradient of 4 mE/sqrt(Hz) within the gradiometer measurement bandwidth (5 to 100 mHz); computation of the spectral density of the tensor trace in order to verify the requirement of 4 sqrt(3) mE/sqrt(Hz) within the measurement bandwidth - processing of GPS observations for orbit reconstruction within the required 10m accuracy and for gradiometer measurement geolocation. The current version of the end-to-end simulator, essentially focusing on the gradiometer payload, is undergoing detailed testing based on a time span of 10 days of simulated flight. This testing phase, ending in January 2003, will verify the current implementation and conclude the assessment of numerical stability and precision. Following that, the exercise will be repeated on a longer-duration simulated flight and the lesson learnt so far will be exploited to further improve the simulator's fidelity. The paper will describe the simulator's current status and will illustrate its capabilities for supporting the assessment of the quality of the scientific products resulting from the current spacecraft and payload design.

Catastini, G.; Cesare, S.; de Sanctis, S.; Detoma, E.; Dumontel, M.; Floberghagen, R.; Parisch, M.; Sechi, G.; Anselmi, A.

2003-04-01

436

Space Radar Image of Raco, Michigan, ecological test site  

NASA Technical Reports Server (NTRS)

This is an X-band image of seasonal changes at the ecological test site of Raco, Michigan, located south of Whitefish Bay on Lake Superior. The image is centered at about 46 degrees north latitude and 85 degrees west longitude. This image was acquired by the X-band Synthetic Aperture Radar onboard the space shuttle Endeavour on April 10th, 1994, and on October 1, 1994. The areas shown in red correspond to the April 10th data; the areas in blue correspond to data acquired on October 1, 1994; green indicates the ratio of data acquired on April 10 and October 1, 1994. The area shown is 22.7 kilometers by 53 kilometers (14 miles by 33 miles). Lake Superior in the upper right was frozen in April and had small waves (ripples) on its surface in October. The land area contains mostly forests and, to a lesser extent, agricultural regions. In April the area was covered in wet snow. By October, there agricultural areas were covered with grass. Vegetation and soils were moist due to rainfalls three days before the data was acquired on October 1, 1994. The bright light green/yellow tones in the lower half of the image show the stronger reflections of the snow-covered agricultural fields. The pinkish color corresponds to the coniferous and deciduous forests. The green area represents red pines. These trees are smaller than the surrounding forest cover and allow more radar penetration. The area is green because the radar is sensing the surface, which undergoes great change from snow to grass and fern undergrowth between April and October. The bright green triangle in the upper half of the image is an old airstrip, while the modern airport can be seen on the bottom right side of the image. The Raco site is an important location for monitoring seasonal changes and future global change because it is situated at the ecological transition zone between the boreal forests and the northern temperate forests. This transitional zone is expected to be ecologically sensitive to anticipated 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.

1994-01-01

437

Space Radar Image of Chernobyl  

NASA Technical Reports Server (NTRS)

This is an image of the Chernobyl nuclear power plant and its surroundings, centered at 51.17 north latitude and 30.15 west longitude. The image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar aboard the space shuttle Endeavour on its 16th orbit on October 1, 1994. The area is located on the northern border of the Ukraine Republic and was produced by using the L-band (horizontally transmitted and received) polarization. The differences in the intensity are due to differences in vegetation cover, with brighter areas being indicative of more vegetation. These data were acquired as part of a collaboration between NASA and the National Space Agency of Ukraine in Remote Sensing and Earth Sciences. NASA has included several sites provided by the Ukrainian space agency as targets of opportunity during the second flight of SIR-C/X-SAR. The Ukrainian space agency also plans to conduct airborne surveys of these sites during the mission. The Chernobyl nuclear power plant is located toward the top of the image near the Pripyat River. The 12-kilometer (7.44-mile)-long cooling pond is easily distinguishable as an elongated dark shape in the center near the top of the image. The reactor complex is visible as the bright area to the extreme left of the cooling pond and the city of Chernobyl is the bright area just below the cooling pond next to the Pripyat River. The large dark area in the bottom right of the image is the Kiev Reservoir just north of Kiev. Also visible is the Dnieper River, which feeds into the Kiev Reservoir from the top of the image. The Soviet government evacuated 116,000 people within 30 kilometers (18.6 miles) of the Chernobyl reactor after the explosion and fire on April 26, 1986. 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.

1994-01-01

438

Space Radar Image of Rabaul Volcano, New Guinea  

NASA Technical Reports Server (NTRS)

This is a radar image of the Rabaul volcano on the island of New Britain, Papua, New Guinea taken almost a month after its September 19, 1994, eruption that killed five people and covered the town of Rabaul and nearby villages with up to 75 centimeters (30 inches) of ash. More than 53,000 people have been displaced by the eruption. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 173rd orbit on October 11, 1994. This image is centered at 4.2 degrees south latitude and 152.2 degrees east longitude in the southwest Pacific Ocean. The area shown is approximately 21 kilometers by 25 kilometers (13 miles by 15.5 miles). North is toward the upper right. The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the L-band (horizontally transmitted and vertically received); blue represents the C-band (horizontally transmitted and vertically received). Most of the Rabaul volcano is underwater and the caldera (crater) creates Blanche Bay, the semi-circular body of water that occupies most of the center of the image. Volcanic vents within the caldera are visible in the image and include Vulcan, on a peninsula on the west side of the bay, and Rabalanakaia and Tavurvur (the circular purple feature near the mouth of the bay) on the east side. Both Vulcan and Tavurvur were active during the 1994 eruption. Ash deposits appear red-orange on the image, and are most prominent on the south flanks of Vulcan and north and northwest of Tavurvur. A faint blue patch in the water in the center of the image is a large raft of floating pumice fragments that were ejected from Vulcan during the eruption and clog the inner bay. Visible on the east side of the bay are the grid-like patterns of the streets of Rabaul and an airstrip, which appears as a dark northwest-trending band at the right-center of 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.

1994-01-01

439

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

NASA Astrophysics Data System (ADS)

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 high pressure Xenon lamps to simulate the direct solar irradiation and a cryogenic heat exchanger to reproduce the earth shadowing of sunlight. The temperature of the thermal cycles ranges from -80°C up to 100°C: the thermo-elastic response of the antenna has been surveyed by employing strain gauges place on the structures at several different locations. The structure has been subjected to 100 thermal cycles, each of which lasting two hours: the total duration of the exposition to the vacuum environment has been equal to 300 hours. Finally the antenna has been disassembled and its elements have been examined to evaluate the effects of the simulated exposition on each of them: the total mass loss and the final thermo-mechanical properties of the polymeric based materials which constitute the structural core of the antenna have been surveyed. The experimental results have been compared to numerical simulation performed by the NASTRAN code: the basic FEM model, developed for the unexposed antenna, has been updated to take into account the thermo-mechanical degradation of the structural elements and materials. This has allowed to obtain, by extrapolation, a FEM based prevision of the antenna thermo-elastic response for long-term operative conditions. References. [1] D. Hastings, H. Garret "Spacecraft environment interactions", Cambridge University Press, Atmospheric Series, Cambridge, 1996. [2] IAF-01-I.6.05 "On the Reliability of Honeycomb Core Bonding Joint in Sandwich Composite Materials for Space Applications" G. Allegri, U. Lecci, M. Marchetti, F. Poscente, 52° IAF Congress, 2001. [3] Meguro A. and alii, "Technology status of the 13 m aperture deployment antenna reflectors for Engineering Test Satellite VIII", Acta Astronautica, Volume: 47, Issue: 2-9, July - November, 2000, pp. 147-152. [4] Novikov L. S. "Contemporary state of spacecraft/environment interaction research" Radiation Measurements, Volume: 30, Issue: 5, October, 1999, pp. 661-667. [5] IAF-01-I.1.02 "Development of High Performance Large Single Shaped R

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

2002-01-01

440

Space Radar Image of Mammoth Mountain, California  

NASA Technical Reports Server (NTRS)

This false-color composite radar image of the Mammoth Mountain area in the Sierra Nevada Mountains, California, was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar aboard the space shuttle Endeavour on its 67th orbit on October 3, 1994. The image is centered at 37.6 degrees north latitude and 119.0 degrees west longitude. The area is about 39 kilometers by 51 kilometers (24 miles by 31 miles). North is toward the bottom, about 45 degrees to the right. In this image, red was created using L-band (horizontally transmitted/vertically received) polarization data; green was created using C-band (horizontally transmitted/vertically received) polarization data; and blue was created using C-band (horizontally transmitted and received) polarization data. Crawley Lake appears dark at the center left of the image, just above or south of Long Valley. The Mammoth Mountain ski area is visible at the top right of the scene. The red areas correspond to forests, the dark blue areas are bare surfaces and the green areas are short vegetation, mainly brush. The purple areas at the higher elevations in the upper part of the scene are discontinuous patches of snow cover from a September 28 storm. New, very thin snow was falling before and during the second space shuttle pass. 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 Synthetic Aperture Radar processing in preparation for upcoming data-intensive SAR missions. The image released here was produced as part of this experimental effort. 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.

1994-01-01

441

Space Radar Image of Kliuchevskoi Volcano, Russia  

NASA Technical Reports Server (NTRS)

This is an image of the Kliuchevskoi volcano, Kamchatka, Russia, which began to erupt on September 30, 1994. Kliuchevskoi is the bright white peak surrounded by red slopes in the lower left portion of the image. The image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar aboard the space shuttle Endeavour on its 25th orbit on October 1, 1994. The image shows an area approximately 30 kilometers by 60 kilometers (18.5 miles by 37 miles) that is centered at 56.18 degrees north latitude and 160.78 degrees east longitude. North is toward the top of the image. The Kamchatka volcanoes are among the most active volcanoes in the world. The volcanic zone sits above a tectonic plate boundary, where the Pacific plate is sinking beneath the northeast edge of the Eurasian plate. The Endeavour crew obtained dramatic video and photographic images of this region during the eruption, which will assist scientists in analyzing the dynamics of the current activity. The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the L-band (horizontally transmitted and vertically received); blue represents the C-band (horizontally transmitted and vertically received). The Kamchatka River runs from left to right across the image. An older, dormant volcanic region appears in green on the north side of the river. The current eruption included massive ejections of gas, vapor and ash, which reached altitudes of 20,000 meters (65,000 feet). New lava flows are visible on the flanks of Kliuchevskoi, appearing yellow/green in the image, superimposed on the red surfaces in the lower center. Melting snow triggered mudflows on the north flank of the volcano, which may threaten agricultural zones and other settlements in the valley to the north. 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 Raumfahrte.v. (DLR), the major partner in science, operations and data processing of X-SAR.

1994-01-01

442

Roter Kamm Impact Crater in Namibia  

NASA Technical Reports Server (NTRS)

This space radar image shows the Roter Kamm impact crater in southwest Namibia. The crater rim is seen in the lower center of the image as a radar-bright, circular feature. Geologists believe the crater was formed by a meteorite that collided with Earth approximately 5 million years ago. The data were acquired by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) instrument onboard space shuttle Endeavour on April 14, 1994. The area is located at 27.8 degrees south latitude and 16.2 degrees east longitude in southern Africa. The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the L-band (horizontally transmitted and vertically received); and blue represents the C-band (horizontally transmitted and vertically received). The area shown is approximately 25.5 kilometers (15.8 miles) by 36.4 kilometers (22.5 miles), with north toward the lower right. The bright white irregular feature in the lower left corner is a small hill of exposed rock outcrop. Roter Kamm is a moderate sized impact crater, 2.5 kilometers (1.5 miles) in diameter rim to rim, and is 130 meters (400 feet) deep. However, its original floor is covered by sand deposits at least 100 meters (300 feet) thick. In a conventional aerial photograph, the brightly colored surfaces immediately surrounding the crater cannot be seen because they are covered by sand. The faint blue surfaces adjacent to the rim may indicate the presence of a layer of rocks ejected from the crater during the impact. The darkest areas are thick windblown sand deposits which form dunes and sand sheets. The sand surface is smooth relative to the surrounding granite and limestone rock outcrops and appears dark in radar image. The green tones are related primarily to larger vegetation growing on sand soil, and the reddish tones are associated with thinly mantled limestone outcrops. Studies of impact craters on 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).

1995-01-01

443

Space Radar Image of West Texas - SAR scan  

NASA Technical Reports Server (NTRS)

This radar image of the Midland/Odessa region of West Texas, demonstrates an experimental technique, called ScanSAR, that allows scientists to rapidly image large areas of the Earth's surface. The large image covers an area 245 kilometers by 225 kilometers (152 miles by 139 miles). It was obtained by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) flying aboard the space shuttle Endeavour on October 5, 1994. The smaller inset image is a standard SIR-C image showing a portion of the same area, 100 kilometers by 57 kilometers (62 miles by 35 miles) and was taken during the first flight of SIR-C on April 14, 1994. The bright spots on the right side of the image are the cities of Odessa (left) and Midland (right), Texas. The Pecos River runs from the top center to the bottom center of the image. Along the left side of the image are, from top to bottom, parts of the Guadalupe, Davis and Santiago Mountains. North is toward the upper right. Unlike conventional radar imaging, in which a radar continuously illuminates a single ground swath as the space shuttle passes over the terrain, a Scansar radar illuminates several adjacent ground swaths almost simultaneously, by 'scanning' the radar beam across a large area in a rapid sequence. The adjacent swaths, typically about 50 km (31 miles) wide, are then merged during ground processing to produce a single large scene. Illumination for this L-band scene is from the top of the image. The beams were scanned from the top of the scene to the bottom, as the shuttle flew from left to right. This scene was acquired in about 30 seconds. A normal SIR-C image is acquired in about 13 seconds. The ScanSAR mode will likely be used on future radar sensors to construct regional and possibly global radar images and topographic maps. The ScanSAR processor is being designed for 1996 implementation at NASA's Alaska SAR Facility, located at the University of Alaska Fairbanks, and will produce digital images from the 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.

1999-01-01

444

SPace Radar Image of Mt. Pinatubo, Philippines  

NASA Technical Reports Server (NTRS)

This is a false color L-band and C-band image of the area around Mount Pinatubo in the Philippines, centered at about 15 degrees north latitude, 120.5 degrees east longitude. This image 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 78 on April 13, 1994. The false-color composite is made by displaying the L-band HH return in red, the L-band HV return in green and the C-band HV return in blue. The area shown is approximately 45 by 68 kilometers (28 by 42 miles). The main volcanic crater on Mount Pinatubo produced by the June 1991 eruptions, and the steep slopes on the upper flanks of the volcano, are easily seen in this image. The red color on the high slopes show the rougher ash deposited during the 1991 eruption. The dark drainages are the smooth mudflows which continue to flood the river valleys after heavy rain. Radar images such as this one can be used to identify the areas flooded by mudflows, which are difficult to distinguish visually, and to assess the rate at which the erosion and deposition continues. A key aspect of the second SIR-C/X-SAR mission in August 1994 will be to collect a second image of Pinatubo during the summer monsoon season -- new mudflows will have occurred -- and to evaluate the short-term changes. The 1991 eruption of Mount Pinatubo in the Philippines is well known for its near-global effects on the atmosphere and climate due to the large amount of sulfur dioxide that was injected into the upper atmosphere. What is less widely known is that even today the volcano continues to be a major hazard to the people who have returned to the area around the volcano. Dangerous mudflows (called 'lahars') are often generated by heavy rains, and these can still sweep down river valleys and wash out roads and villages, or bury low lying areas in several meters of mud and volcanic debris. These mudflows will continue to be a severe hazard around Pinatubo for 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).

1999-01-01

445

Space Radar Image of Oberpfaffenhofen, Germany  

NASA Technical Reports Server (NTRS)

This is a false-color, three-frequency image of the Oberpfaffenhofen supersite, southwest of Munich in southern Germany, which shows the differences in what the three radar bands can see on the ground. The image covers a 27- by 36-kilometer (17- by 22-mile) area. The center of the site is 48.09 degrees north and 11.29 degrees east. The image was acquired by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) onboard space shuttle Endeavour on April 13, 1994, just after a heavy storm which covered the all area with 20 centimeters (8 inches) of snow. The dark area in the center of the image is Lake Ammersee. The two smaller lakes above the Ammersee are the Worthsee and the Pilsensee. On the right of the image is the tip of the Starnbergersee. The outskirt of the city of Munich can be seen at the top of the image. The Oberpfaffenhofen supersite is the major test site for X-SAR calibration and scientific experiments such as ecology, hydrology and geology. This color composite image is a three-frequency overlay. L-band total power was assigned red, the C-band total power is shown in green and the X-band VV polarization appears blue. The colors on the image stress the differences between the L-band, C-band and X-band images. If the three frequencies were seeing the same thing, the image will appear in black and white. For example, the blue areas corresponds to area for which the X-band backscatter is relatively higher than the backscatter at L-and C-band; this behavior is characteristic of clear cuts or shorter vegetation. Similarly, the forested areas have a reddish tint. Finally, the green areas seen at the southern tip of both the Ammersee and the Pilsensee lakes indicate a marshy 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 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.

1999-01-01

446

Space Radar Image of Taal Volcano, Philippines  

NASA Technical Reports Server (NTRS)

This is an image of Taal volcano, near Manila on the island of Luzon in the Philippines. The black area in the center is Taal Lake, which nearly fills the 30-kilometer-diameter (18-mile) caldera. The caldera rim consists of deeply eroded hills and cliffs. The large island in Taal Lake, which itself contains a crater lake, is known as Volcano Island. The bright yellow patch on the southwest side of the island marks the site of an explosion crater that formed during a deadly eruption of Taal in 1965. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 78th orbit on October 5, 1994. The image shows an area approximately 56 kilometers by 112 kilometers (34 miles by 68 miles) that is centered at 14.0 degrees north latitude and 121.0 degrees east longitude. North is toward the upper right of the image. The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the L-band (horizontally transmitted and vertically received); blue represents the C-band (horizontally transmitted and vertically received). Since 1572, Taal has erupted at least 34 times. Since early 1991, the volcano has been restless, with swarms of earthquakes, new steaming areas, ground fracturing, and increases in water temperature of the lake. Volcanologists and other local authorities are carefully monitoring Taal to understand if the current activity may foretell an eruption. Taal is one of 15 'Decade Volcanoes' that have been identified by the volcanology community as presenting large potential hazards to population centers. The bright area in the upper right of the image is the densely populated city of Manila, only 50 kilometers (30 miles) north of the central crater. 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.

1994-01-01

447

Space Radar Image of the Yucatan Impact Crater Site  

NASA Technical Reports Server (NTRS)

This is a radar image of the southwest portion of the buried Chicxulub impact crater in the Yucatan Peninsula, Mexico. The radar image was acquired on orbit 81 of space shuttle Endeavour on April 14, 1994 by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR). The image is centered at 20 degrees north latitude and 90 degrees west longitude. Scientists believe the crater was formed by an asteroid or comet which slammed into the Earth more than 65 million years ago. It is this impact crater that has been linked to a major biological catastrophe where more than 50 percent of the Earth's species, including the dinosaurs, became extinct. The 180-to 300-kilometer-diameter (110- to 180-mile)crater is buried by 300 to 1,000 meters (1,000 to 3,000 feet) of limestone. The exact size of the crater is currently being debated by scientists. This is a total power radar image with L-band in red, C-band in green, and the difference between C-band L-band in blue. The 10-kilometer-wide (6-mile) band of yellow and pink with blue patches along the top left (northwestern side) of the image is a mangrove swamp. The blue patches are islands of tropical forests created by freshwater springs that emerge through fractures in the limestone bedrock and are most abundant in the vicinity of the buried crater rim. The fracture patterns and wetland hydrology in this region are controlled by the structure of the buried crater. Scientists are using the SIR-C/X-SAR imagery to study wetland ecology and help determine the exact size of the impact crater. 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. Research on the biological effects of the Chicxulub impact is supported by the NASA Exobiology Program.

1999-01-01

448

Space Radar Image of Houston, Texas  

NASA Technical Reports Server (NTRS)

This image of Houston, Texas, shows the amount of detail that is possible to obtain using spaceborne radar imaging. Images such as this -- obtained by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) flying aboard the space shuttle Endeavor last fall -- can become an effective tool for urban planners who map and monitor land use patterns in urban, agricultural and wetland areas. Central Houston appears pink and white in the upper portion of the image, outlined and crisscrossed by freeways. The image was obtained on October 10, 1994, during the space shuttle's 167th orbit. The area shown is 100 kilometers by 60 kilometers (62 miles by 38 miles) and is centered at 29.38 degrees north latitude, 95.1 degrees west longitude. North is toward the upper left. The pink areas designate urban development while the green-and blue-patterned areas are agricultural fields. Black areas are bodies of water, including Galveston Bay along the right edge and the Gulf of Mexico at the bottom of the image. Interstate 45 runs from top to bottom through the image. The narrow island at the bottom of the image is Galveston Island, with the city of Galveston at its northeast (right) end. The dark cross in the upper center of the image is Hobby Airport. Ellington Air Force Base is visible below Hobby on the other side of Interstate 45. Clear Lake is the dark body of water in the middle right of the image. The green square just north of Clear Lake is Johnson Space Center, home of Mission Control and the astronaut training facilities. The black rectangle with a white center that appears to the left of the city center is the Houston Astrodome. The colors in this image were obtained using the follow radar channels: red represents the L-band (horizontally transmitted, vertically received); green represents the C-band (horizontally transmitted, vertically received); blue represents the C-band (horizontally transmitted and received). 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.

1994-01-01

449

Space Radar Image of Mammoth, California  

NASA Technical Reports Server (NTRS)

These two images were created using data from the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR). The image on the left is a false-color composite of the Mammoth Mountain area in California's Sierra Nevada Mountains centered at 37.6 degrees north, 119.0 degrees west. It was acquired on-board the space shuttle Endeavour on its 67th orbit on April 13, 1994. In the image on the left, red is C-band HV-polarization, green is C-band HH-polarization and blue is the ratio of C-band VV-polarization to C-band HV-polarization. On the right is a classification map of the surface features which was developed by SIR-C/X-SAR science team members at the University of California, Santa Barbara. The area is about 23 by 46 kilometers (14 by 29 miles). In the classification image, the colors represent the following surfaces: White snow Red frozen lake, covered by snow Brown bare ground Blue lake (open water) Yellow short vegetation (mainly brush) Green sparse forest Dark green dense forest Maps like this one are helpful to scientists studying snow wetness and snow water equivalent in the snow pack. Across the globe, over major portions of the middle and high latitudes, and at high elevations in the tropical latitudes, snow and alpine glaciers are the largest contributors to run-off in rivers and to ground-water recharge. Snow hydrologists are using radar in an attempt to estimate both the quantity of water held by seasonal snow packs and the timing of snow melt. Snow and ice also play important roles in regional climates; understanding the processes in seasonal snow cover is also important for studies of the chemical balance of alpine drainage basins. SIR-C/X-SAR is a powerful tool because it is sensitive to most snow pack conditions and is less influenced by weather conditions than other remote sensing instruments, such as the Landsat 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, 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.

1999-01-01

450

Space Radar Image of Death Valley, California  

NASA Technical Reports Server (NTRS)

This image shows Death Valley, California, centered at 36.629 degrees north latitude, 117.069 degrees west longitude. The image shows Furnace Creek alluvial fan and Furnace Creek Ranch at the far right, and the sand dunes near Stove Pipe Wells at the center. The dark fork-shaped feature between Furnace Creek fan and the dunes is a smooth flood-plain which encloses Cottonball Basin. This SIR-C/X-SAR supersite is an area of extensive field investigations and has been visited by both Space Radar Lab astronaut crews. Elevations in the valley range from 70 meters (230 feet) below sea level, the lowest in the United States, to more than 3,300 meters (10,800 feet) above sea level. Scientists are using SIR-C/X-SAR data from Death Valley to help answer a number of different questions about Earth's geology. One question concerns how alluvial fans are formed and change through time under the influence of climatic changes and earthquakes. Alluvial fans are gravel deposits that wash down from the mountains over time. They are visible in the image as circular, fan-shaped bright areas extending into the darker valley floor from the mountains. Information about the alluvial fans helps scientists study Earth's ancient climate. Scientists know the fans are built up through climatic and tectonic processes and they will use the SIR-C/X-SAR data to understand the nature and rates of weathering processes on the fans, soil formation and the transport of sand and dust by the wind. SIR-C/X-SAR's sensitivity to centimeter-scale (inch-scale) roughness provides detailed maps of surface texture. Such information can be used to study the occurrence and movement of dust storms and sand dunes. The goal of these studies is to gain a better understanding of the record of past climatic changes and the effects of those changes on a sensitive environment. This may lead to a better ability to predict future response of the land to different potential global climate-change scenarios. Death Valley is 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).

1999-01-01

451

Space Radar Image of Mammoth, California  

NASA Technical Reports Server (NTRS)

This image is a false-color composite of the Mammoth Mountain area in the Sierra Nevada Mountains, California. The image is centered at 37.6 degrees north latitude and 119.0 degrees west longitude. The area is approximately 11.5 kilometers by 78.3 kilometers (7.2 by 48.7 miles) in size. The image was acquired by the Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) aboard space shuttle Endeavour on its 40th orbit, April 11, 1994. The city of Mammoth Lakes is visible in the bottom right portion of the scene. 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 lakes or slopes facing away from the radar illumination. Yellow represents areas of dry, old snow as well as slopes facing directly the radar illumination. At the time of the SIR-C overflight, the sky conditions were partially cloudy, with low and cold air temperatures. Total snow depth is about 1 to 1.5 meters (3 to 5 feet). The current snow accumulation is only about 40 percent of the average for the season. The most recent snowfall in the area covered the entire area with about 30 centimeters (14 inches) of fresh dry snow. Above 3,000 meters (10,000 feet) elevation the snowpack is dry. Below that elevation, the snowpack has a layered structure. Snow hydrologists are using SIR-C/X-SAR data to determine both the quantity of water held by seasonal snowpack and the amount of snow melting. SIR-C/X-SAR 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, in conjunction with 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 fur Luft und Raumfahrt e.v. (DLR), the major partner in science, operation and data processing of X-SAR.

1999-01-01

452

Safsaf Oasis, Egypt  

NASA Technical Reports Server (NTRS)

These images show two views of a region of south-central Egypt, each taken by a different type of spaceborne sensor. On the left is an optical image from the Landsat Thematic Mapper, and on the right is a radar image from the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR). This comparison shows that the visible and infrared wavelengths of Landsat are only sensitive to the materials on the surface, while the radar wavelengths of SIR-C/X-SAR can penetrate the thin sand cover in this arid region to reveal details hidden below the surface. Field studies in this area indicate that the L-band radar can penetrate as much as 2 meters (6.5 feet) of very dry sand to image buried rock structures. Ancient drainage channels, shown at the bottom of this image, are filled with sand more than 2 meters (6.5 feet) thick and therefore appear dark because the radar waves cannot penetrate them. Only the most recently active channels are visible in the Landsat scene. Some geologic structures at the surface are visible in both images. However, many buried features, such as rock fractures and the blue circular granite bodies in the upper center of the image on the right, are visible only to the radar. The Safsaf Oasis is located near the bright yellow feature in the lower left center of the Landsat image. Scientists are using the penetrating capabilities of radar imaging in desert areas to study structural geology, mineral exploration, ancient climates, water resources and archaeology. Each image is 30.8 kilometers by 25.6 kilometers (19.1 miles by 15.9 miles) and is centered at 22.7 degrees north latitude, 29.3 degrees east longitude. North is toward the upper right. In the Landsat image, the colors are assigned as follows: red is Band 7 (mid-infrared); green is Band 4 (near infrared); and blue is Band 1 (visible blue light). The colors assigned to the radar frequencies and polarizations are as follows: red is L-band, horizontally transmitted and received; green 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.

1998-01-01

453

Unzen Volcano, Japan  

NASA Technical Reports Server (NTRS)

This is a space radar image of the area around the Unzen volcano, on the west coast of Kyushu Island in southwestern Japan. Unzen, which appears in this image as a large triangular peak with a white flank near the center of the peninsula, has been continuously active since a series of powerful eruptions began in 1991. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 93rd orbit on April 15, 1994. The image shows an area 41.5 kilometers by 32.8 kilometers (25.7 miles by 20.3 miles) that is centered at 32.75 degrees north latitude and 130.15 degrees east longitude. North is toward the upper left of the image. The radar illumination is from the top of the image. The colors in this image were obtained using the following radar channels: red represents the L-band (vertically transmitted and received); green represents the average of L-band and C-band (vertically transmitted and received); blue represents the C-band (vertically transmitted and received). Unzen is one of 15 'Decade' volcanoes identified by the scientific community as posing significant potential threats to large local populations. The city of Shimabara sits along the coast at the foot of Unzen on its east and northeast sides. At the summit of Unzen a dome of thick lava has been growing continuously since 1991. Collapses of the sides of this dome have generated deadly avalanches of hot gas and rock known as pyroclastic flows. Volcanologists can use radar image data to monitor the growth of lava domes, to better understand and predict potentially hazardous collapses.

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).

1995-01-01

454

Space Radar Image of Flevoland, Netherlands  

NASA Technical Reports Server (NTRS)

This is a three-frequency false color image of Flevoland, The Netherlands, centered at 52.4 degrees north latitude, 5.4 degrees east longitude. This image was acquired by the Spaceborne Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) aboard space shuttle Endeavour on April 14, 1994. It was produced by combining data from the X-band, C-band and L-band radars. The area shown is approximately 25 kilometers by 28 kilometers (15-1/2 by 17-1/2 miles). Flevoland, which fills the lower two-thirds of the image, is a very flat area that is made up of reclaimed land that is used for agriculture and forestry. At the top of the image, across the canal from Flevoland, is an older forest shown in red; the city of Harderwijk is shown in white on the shore of the canal. At this time of the year, the agricultural fields are bare soil, and they show up in this image in blue. The changes in the brightness of the blue areas are equal to the changes in roughness. The dark blue areas are water and the small dots in the canal are boats. This SIR-C/X-SAR supersite is being used for both calibration and agricultural studies. Several soil and crop ground-truth studies will be conducted during the shuttle flight. In addition, about 10calibration devices and 10 corner reflectors have been deployed to calibrate and monitor the radar signal. One of these transponders can be seen as a bright star in the lower right quadrant of the image. This false-color image was made using L-band total power in the red channel, C-band total power in the green channel, and X-band VV polarization in the blue channel. 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 Raumfahrte.v. (DLR), the major partner in science, operations and data processing of X-SAR.

1999-01-01

455

Space Radar Image of Mississippi Delta  

NASA Technical Reports Server (NTRS)

This is a radar image of the Mississippi River Delta where the river enters into the Gulf of Mexico along the coast of Louisiana. This multi-frequency image demonstrates the capability of the radar to distinguish different types of wetlands surfaces in river deltas. This image was acquired by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on October 2, 1995. The image is centered on latitude 29.3 degrees North latitude and 89.28 degrees West longitude. The area shown is approximately 63 kilometers by 43 kilometers (39 miles by 26 miles). North is towards the upper right of the image. As the river enters the Gulf of Mexico, it loses energy and dumps its load of sediment that it has carried on its journey through the mid-continent. This pile of sediment, or mud, accumulates over the years building up the delta front. As one part of the delta becomes clogged with sediment, the delta front will migrate in search of new areas to grow. The area shown on this image is the currently active delta front of the Mississippi. The migratory nature of the delta forms natural traps for oil and the numerous bright spots along the outside of the delta are drilling platforms. Most of the land in the image consists of mud flats and marsh lands. There is little human settlement in this area due to the instability of the sediments. The main shipping channel of the Mississippi River is the broad red stripe running northwest to southeast down the left side of the image. The bright spots within the channel are ships. The colors in the image are assigned to different frequencies and polarizations of the radar as follows: red is L-band vertically transmitted, vertically received; green is C-band vertically transmitted, vertically received; blue is X-band vertically transmitted, vertically received. 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.

1999-01-01

456

Space Radar Image of North Sea, Germany  

NASA Technical Reports Server (NTRS)

This is an X-band image of an oil slick experiment conducted in the North Sea, Germany. The image is centered at 54.58 degrees north latitude and 7.48 degrees east longitude. This image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on October 6, 1994, during the second flight of the spaceborne radar. The experiment was designed to differentiate between petroleum oil spills and natural slicks floating on the sea surface. Two types of petroleum oil and six types of oils resembling natural sea surface slicks were poured on the sea surface from ships and a helicopter just before the space shuttle flew over the region. At the bottom of the image is the Sylt peninsula, a famous holiday resort. Twenty-six gallons (100 liters) of diesel oil was dissipated due to wave action before the shuttle reached the site. The oil spill seen at the uppermost part of the image is about 105 gallons (400 liters) of heavy heating oil and the largest spill is about 58 gallons (220 liters) of oleyl alcohol, resembling a 'natural oil' like the remaining five spills used to imitate natural slicks that have occurred offshore from various states. The volume of these other oils spilled on the ocean surface during the five experimental spills varied from 16 gallons to 21 gallons (60 liters to 80 liters). The distance between neighboring spills was about half a mile (800 meters) at the most. The largest slick later thinned out to monomolecular sheets of about 10 microns, which is the dimension of a molecule. Oceanographers found that SIR-C/X-SAR was able to clearly distinguish the oil slicks from algae products dumped nearby. Preliminary indications are that various types of slicks may be distinguished, especially when other radar wavelengths are included in the analysis. Radar imaging of the world's oceans on a continuing basis may allow oceanographers in the future to detect and clean up oil spills much more 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.

1994-01-01

457

Space Radar Image of Kilauea, Hawaii  

NASA Technical Reports Server (NTRS)

This color composite C-band and L-band image of the Kilauea volcano on the Big Island of Hawaii was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) flying on space shuttle Endeavour. The city of Hilo can be seen at the top. The image shows the different types of lava flows around the crater Pu'u O'o. Ash deposits which erupted in 1790 from the summit of Kilauea volcano show up as dark in this image, and fine details associated with lava flows which erupted in 1919 and 1974 can be seen to the south of the summit in an area called the Ka'u Desert. In addition, the other historic lava flows created in 1881 and 1984 from Mauna Loa volcano (out of view to the left of this image) can be easily seen despite the fact that the surrounding area is covered by forest. Such information will be used to map the extent of such flows, which can pose a hazard to the subdivisions of Hilo. Highway 11 is the linear feature running from Hilo to the Kilauea volcano. The Kilauea volcano has been almost continuously active for more than the last 11 years. Field teams that were on the ground specifically to support these radar observations report that there was vigorous surface activity about 400 meters (one-quarter mile) inland from the coast. A moving lava flow about 200 meters (660 feet) in length was observed at the time of the shuttle overflight, raising the possibility that subsequent images taken during this mission will show changes in the landscape. This image is centered at 19.2 degrees north latitude and 155.2 degrees west longitude. 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).

1999-01-01

458

Space Radar Image of the Lost City of Ubar  

NASA Technical Reports Server (NTRS)

This is a radar image of the region around the site of the lost city of Ubar in southern Oman, on the Arabian Peninsula. The ancient city was discovered in 1992 with the aid of remote sensing data. Archeologists believe Ubar existed from about 2800 B.C. to about 300 A.D. and was a remote desert outpost where caravans were assembled for the transport of frankincense across the desert. This image was acquired on orbit 65 of space shuttle Endeavour on April 13, 1994 by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR). The SIR-C image shown is centered at 18.4 degrees north latitude and 53.6 degrees east longitude. The image covers an area about 50 by 100 kilometers (31 miles by 62 miles). The image is constructed from three of the available SIR-C channels and displays L-band, HH (horizontal transmit and receive) data as red, C-band HH as blue, and L-band HV (horizontal transmit, vertical receive) as green. The prominent magenta colored area is a region of large sand dunes, which are bright reflectors at both L-and C-band. The prominent green areas (L-HV) are rough limestone rocks, which form a rocky desert floor. A major wadi, or dry stream bed, runs across the middle of the image and is shown largely in white due to strong radar scattering in all channels displayed (L and C HH, L-HV). The actual site of the fortress of the lost city of Ubar, currently under excavation, is near the Wadi close to the center of the image. The fortress is too small to be detected in this image. However, tracks leading to the site, and surrounding tracks, appear as prominent, but diffuse, reddish streaks. These tracks have been used in modern times, but field investigations show many of these tracks were in use in ancient times as well. Mapping of these tracks on regional remote sensing images was a key to recognizing the site as Ubar in 1992. This image, and ongoing field investigations, will help shed light on a little known early civilization. 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.

1999-01-01

459

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

NASA Technical Reports Server (NTRS)

This composite image is of an area thought to contain the ruins of the ancient settlement of Niya. It is located in the southwest corner of the Taklamakan Desert in China's Sinjiang Province. This region was part of some of China's earliest dynasties and from the third century BC on was traversed by the famous Silk Road. The Silk Road, passing east-west through this image, was an ancient trade route that led across Central Asia's desert to Persia, Byzantium and Rome. The multi-frequency, multi-polarized radar imagery was acquired on orbit 106 of the space shuttle Endeavour on April 16, 1994 by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar. The image is centered at 37.78 degrees north latitude and 82.41 degrees east longitude. The area shown is approximately 35 kilometers by 83 kilometers (22 miles by 51 miles). The image is a composite of an image from an Earth-orbiting satellite called Systeme Probatoire d'Observation de la Terre (SPOT)and a SIR-C multi-frequency, multi-polarized radar image. The false-color radar image was created by displaying the C-band (horizontally transmitted and received) return in red, the L-band (horizontally transmitted and received) return in green, and the L-band (horizontally transmitted and vertically received) return in blue. The prominent east/west pink formation at the bottom of the image is most likely a ridge of loosely consolidated sedimentary rock. The Niya River -- the black feature in the lower right of the French satellite image -- meanders north-northeast until it clears the sedimentary ridge, at which point it abruptly turns northwest. Sediment and evaporite deposits left by the river over millennia dominate the center and upper right of the radar image (in light pink). High ground, ridges and dunes are seen among the riverbed meanderings as mottled blue. Through image enhancement and analysis, a new feature probably representing a man-made canal has been discovered and mapped. 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), 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.

1999-01-01

460

Space Radar Image of Oetzal, Austria  

NASA Technical Reports Server (NTRS)

This image is a false-color composite of Oetzal, Austria located in the Central Alps centered at 46.8 degrees north latitude, 10.70 degrees east longitude, at the border between Switzerland (top), Italy (left) and Austria (right and bottom). The area shown is 50 kilometers (30 miles) south of Innsbruck, Austria. This image was acquired by the Spaceborne Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 14th orbit. Oetztal is a SIR-C/X-SAR hydrology supersite. Approximately one quarter of this image is covered by glaciers, the largest of which, Gepatschferner, is visible as a triangular yellow patch in the center of the scene. The summits of the main peaks reach elevations between 3,500 and 3,768 meters (11,500 and 12,362 feet) above sea level. The tongues of the glaciers are descending from elevated plateaus down into narrow valleys which were formed during the last ice age. This color image was produced in C-band using multi-polarization information (red=CHV, green=CVV,blue=CVV/CHV). The blue areas are lakes (Gepatsch dam at center right; Lake Muta at top right) and glacier ice. The yellow areas are slopes facing the radar and areas of dry snow. Purple corresponds to slopes facing away from the radar. Yellow in the valley bottom corresponds to tree covered areas. There is 30 to 50 centimeters (12 to 20 inches) of dry, fresh snow on the glaciers, and about 10 centimeters (4 inches) in the valley at the city of Vent, Austria (center). At these data were taken, the weather was cold, with snow and thick fog. The entire area would appear white to an optical sensor because it is all covered under a winter snowpack. Researchers are interested in Oetztal because knowing how glaciers shrink and grow over time is an important indication of climatic change. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth (MTPE). 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).

1999-01-01

461

Space Radar Image of Kiluchevskoi, Volcano, Russia  

NASA Technical Reports Server (NTRS)

This is an image of the area of Kliuchevskoi volcano, Kamchatka, Russia, which began to erupt on September 30, 1994. Kliuchevskoi is the blue triangular peak in the center of the image, towards the left edge of the bright red area that delineates bare snow cover. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 88th orbit on October 5, 1994. The image shows an area approximately 75 kilometers by 100 kilometers (46 miles by 62 miles) that is centered at 56.07 degrees north latitude and 160.84 degrees east longitude. North is toward the bottom of the image. The radar illumination is from the top of the image. The Kamchatka volcanoes are among the most active volcanoes in the world. The volcanic zone sits above a tectonic plate boundary, where the Pacific plate is sinking beneath the northeast edge of the Eurasian plate. The Endeavour crew obtained dramatic video and photographic images of this region during the eruption, which will assist scientists in analyzing the dynamics of the recent activity. The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the L-band (horizontally transmitted and vertically received); blue represents the C-band (horizontally transmitted and vertically received). In addition to Kliuchevskoi, two other active volcanoes are visible in the image. Bezymianny, the circular crater above and to the right of Kliuchevskoi, contains a slowly growing lava dome. Tolbachik is the large volcano with a dark summit crater near the upper right edge of the red snow covered area. The Kamchatka River runs from right to left across the bottom of the image. The current eruption of Kliuchevskoi included massive ejections of gas, vapor and ash, which reached altitudes of 15,000 meters (50,000 feet). Melting snow mixed with volcanic ash triggered mud flows on the 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.

1994-01-01

462

Space Radar Image of Prince Albert, Canada  

NASA Technical Reports Server (NTRS)

This is a false-color composite of Prince Albert, Canada, centered at 53.91 north latitude and 104.69 west longitude. This image was acquired by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar(SIR-C/X-SAR) aboard space shuttle Endeavour on its 20th orbit. The area is located 40 kilometers (25 miles) north and 30 kilometers (20 miles) east of the town of Prince Albert in the Saskatchewan province of Canada. The image covers the area east of the Candle lake, between gravel surface highways 120 and 106 and west of 106. The area in the middle of the image covers the entire Nipawin (Narrow Hills) provincial park. The look angle of the radar is 30 degrees and the size of the image is approximately 20 kilometers by 50 kilometers (12 by 30 miles). The image was produced by using only the L-band. The three polarization channels HH, HV and VV are illustrated by red, green and blue respectively. The changes in the intensity of each color are related to various surface conditions such as variations in forest stands, frozen or thawed condition of the surface, disturbances (fire and deforestation), and areas of regrowth. Most of the dark areas in the image are the ice-covered lakes in the region. The dark area on the top right corner of the image is the white Gull Lake north of the intersection of highway 120 and 913. The right middle part of the image shows Lake Ispuchaw and Lower Fishing Lake. The deforested areas are also shown by dark areas in the image. Since most of the logging practice at the Prince Albert area is around the major highways, the deforested areas can be easily detected as small geometrically shaped dark regions along the roads. At the time of the SIR-C/X-SAR overpass a major part of the forest is either frozen or undergoing the spring thaw. The L-band HH shows a high return in the jack pine forest. The reddish areas in the image are old jack pine forest, 12 to 17 meters (40to 55 feet) in height and 60 to 75 years old. The orange-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).

1999-01-01

463

Space Radar Image of Missouri River, Glasgow, Missouri  

NASA Technical Reports Server (NTRS)

This is a false-color L-band image of an area near Glasgow, Missouri, centered at about 39.2 degrees north latitude and 92.8 degrees west longitude. The image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 50th orbit on October 3, 1994. The false-color composite was made by displaying the L-band (horizontally transmitted and received) return in red; the L-band (horizontally transmitted and vertically received) return in green; and the sum of the two channels in blue. The area shown is approximately 37 kilometers by 25 kilometers (23 miles by 16 miles). The radar data, coupled with pre-flood aerial photography and satellite data and post-flood topographic and field data, are being used to evaluate changes associated with levee breaks in landforms, where deposits formed during the widespread flooding in 1993 along the Missouri and Mississippi Rivers. The distinct radar scattering properties of farmland, sand fields and scoured areas will be used to inventory floodplains along the Missouri River and determine the processes by which these areas return to preflood conditions. The image shows one such levee break near Glasgow, Missouri. In the upper center of the radar image is a region covered by several meters of sand, shown as blue regions below the bend in the river. West (left) of this dark area, a blue gap in the levee tree canopy can be seen, showing the area where the levee failed. Radar data such as these can help scientists more accurately assess the potential for future flooding in this region and how that might impact surrounding communities. 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.

1994-01-01

464

Space Radar Image of Moscow, Russia  

NASA Technical Reports Server (NTRS)

This is a vertically polarized L-band image of the southern half of Moscow, an area which has been inhabited for 2,000 years. The image covers a diameter of approximately 50 kilometers (31 miles) and was taken on September 30, 1994 by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar aboard the space shuttle Endeavour. The city of Moscow was founded about 750 years ago and today is home to about 8 million residents. The southern half of the circular highway (a road that looks like a ring) can easily be identified as well as the roads and railways radiating out from the center of the city. The city was named after the Moskwa River and replaced Russia's former capital, St. Petersburg, after the Russian Revolution in 1917. The river winding through Moscow shows up in various gray shades. The circular structure of many city roads can easily be identified, although subway connections covering several hundred kilometers are not visible in this image. The white areas within the ring road and outside of it are buildings of the city itself and it suburban towns. Two of many airports are located in the west and southeast of Moscow, near the corners of the image. The Kremlin is located north just outside of the imaged city center. It was actually built in the 16th century, when Ivan III was czar, and is famous for its various churches. In the surrounding area, light gray indicates forests, while the dark patches are agricultural areas. The various shades from middle gray to dark gray indicate different stages of harvesting, ploughing and grassland. 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.

1994-01-01

465

Space Radar Image of Karisoke & Virunga Volcanoes  

NASA Technical Reports Server (NTRS)

This is a false-color composite of Central Africa, showing the Virunga volcano chain along the borders of Rwanda, Zaire and Uganda. This area is home to the endangered mountain gorillas. The image was acquired on October 3, 1994, on orbit 58 of the space shuttle Endeavour by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR). In this image red is the L-band (horizontally transmitted, vertically received) polarization; green is the C-band (horizontally transmitted and received) polarization; and blue is the C-band (horizontally transmitted and received) polarization. The area is centered at about 2.4 degrees south latitude and 30.8 degrees east longitude. The image covers an area 56 kilometers by 70 kilometers (35 miles by 43 miles). The dark area at the top of the image is Lake Kivu, which forms the border between Zaire (to the right) and Rwanda (to the left). In the center of the image is the steep cone of Nyiragongo volcano, rising 3,465 meters (11,369 feet) high, with its central crater now occupied by a lava lake. To the left are three volcanoes, Mount Karisimbi, rising 4,500 meters (14,800 feet) high; Mount Sabinyo, rising 3,600 meters (12,000 feet) high; and Mount Muhavura, rising 4,100 meters (13,500 feet) high. To their right is Nyamuragira volcano, which is 3,053 meters (10,017 feet) tall, with radiating lava flows dating from the 1950s to the late 1980s. These active volcanoes constitute a hazard to the towns of Goma, Zaire and the nearby Rwandan refugee camps, located on the shore of Lake Kivu at the top left. This radar image highlights subtle differences in the vegetation of the region. The green patch to the center left of the image in the foothills of Karisimbi is a bamboo forest where the mountain gorillas live. The vegetation types in this area are an important factor in the habitat of mountain gorillas. Researchers at Rutgers University in New Jersey and the Dian Fossey Gorilla Fund in London will use this data to produce 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.

1994-01-01

466

Status and Perspectives of Electric Propulsion in Italy  

NASA Astrophysics Data System (ADS)

Electric Propulsion (EP) is recognized as one of today's enabling technologies for scientific and commercial missions. In consideration of EP's major strategic impact on the near and long term scenarios, an EP development programme has been established within the Italian Space Agency (ASI), aimed at the development of a variety of propulsion capabilities covering different fields of application. This paper presents an overview of Electric Propulsion (EP) activities underway in Italy and outlines the planned development lines, both in research institutions and in industry. Italian EP activities are essentially concentrated in Pisa, at Centrospazio and Alta, and in Florence, at LABEN - Proel Tecnologie Division (LABEN/Proel). Centrospazio/Alta and LABEN/Proel have established a collaboration program for joint advanced developments in the EP field. Established in 1989, Centrospazio is a private research center closely related to the Department of Aerospace Engineering of Pisa University. Along the years, Centrospazio lines of development have included arcjets, magneto- plasma-dynamic thrusters, FEEP and Hall thrusters, as well as computational plasma dynamics and low-thrust mission studies. Alta, a small enterprise, was founded in 1999 to exploit in an industrial setting the results of research previously carried out at Centrospazio. Alta's activities include the development of micronewton and millinewton FEEP thrusters, and testing of high power Hall and ion thrusters in specialised facilities. A full micronewton FEEP propulsion system is being developed for the Microscope spacecraft, a scientific mission by CNES aimed at verification of the Equivalence Principle. FEEP will also fly on ASI's HypSEO, a technological demonstrator for Earth Observation, and is being considered for ESA's GOCE (geodesy) and SMART-2 (formation flying), as well as for the intended scientific spacecraft GG by ASI. The ASI-funded STEPS facility will be placed on an external site on the 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.

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

2002-01-01

467

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

NASA Astrophysics Data System (ADS)

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.

Adami, Giorgio

2006-12-01

468

A Conceptual Design for a Small Deployer Satellite  

NASA Astrophysics Data System (ADS)

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 industrial partners, has started the development of a space mission, named DeSat, focused on a new highly innovative micro satellite bus for LEO, entirely designed by an integrated team of students and researchers. The first mission is scheduled to fly at the end of 2003 on a converted Russian ICBM. The paper is intended to present the main features of DeSat mission, its goals and the activities that have been done by students and researchers to achieve the micro satellite platform design. The principal payload of the entire system is represented by a recirculating ball screw boom whose mass reaches one third of the total mass budget. The goal of the mission is to demonstrate the validity of its design also for space applications, which may range from precise off platform positioning of devices and instruments to GPS interferometry, sensor measurements and robotics. The satellite geometry, when the boom is in deployed configuration, is so stretched that the name "deployable satellite" has come out naturally. The large deployment mechanism, compared to the small bus, has influenced the design of every satellite subsystem leading to innovative solutions in terms of design, materials, equipment and instruments.

Zumbo, S.

2002-01-01

469

Space Radar Image of Oetzal, Austria  

NASA Technical Reports Server (NTRS)

This is a digital elevation model that was geometrically coded directly onto an X-band seasonal change image of the Oetztal supersite in Austria. The image is centered at 46.82 degrees north latitude and 10.79 degrees east longitude. This image is located in the Central Alps at the border between Switzerland, Italy and Austria, 50 kilometers (31 miles) southwest of Innsbruck. It was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture aboard the space shuttle Endeavour on April 14, 1994 and on October 5, 1994. It was produced by combining data from these two different data sets. Data obtained in April is green; data obtained in October appears in red and blue, and was used as an enhancement based on the ratio of the two data sets. Areas with a decrease in backscatter from April to October appear in light blue (cyan), such as the large Gepatschferner glacier seen at the left of the image center, and most of the other glaciers in this view. A light blue hue is also visible at the east border of the dark blue Lake Reschensee at the upper left side. This shows a significant rise in the water level. Magenta represents areas with an increase of backscatter from April 10 to October 5. Yellow indicates areas with high radar signal response during both passes, such as the mountain slopes facing the radar. Low radar backscatter signals refer to smooth surface (lakes) or radar grazing areas to radar shadow areas, seen in the southeast slopes. The area is approximately 29 kilometers by 21 kilometers (18 miles by 13.5 miles). The summit of the main peaks reaches elevations of 3,500 to 3,768 meters (xx feet to xx feet)above sea level. The test site's core area is the glacier region of Venter Valley, which is one of the most intensively studied areas for glacier research in the world. Research in Venter Valley (below center)includes studies of glacier dynamics, glacier-climate regions, snowpack conditions and glacier hydrology. About 25 percent of the core test site is covered by glaciers. Corner reflectors are set up for calibration. Five corner reflectors can be seen on the Gepatschferner and two can be seen on the Vernagtferner. 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.

1994-01-01

470

Space Radar Image of Bebedauro, Brazil, seasonal  

NASA Technical Reports Server (NTRS)

This is an X-band image showing seasonal changes at the hydrological test site of Bebedouro in Brazil. The image is centered at 9 degrees south latitude and 40.2 degrees west longitude. This image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on April 10, 1994, during the first flight of the radar system, and on October 1, 1994, during the second mission. The swath width is approximately 16.5 kilometers (10.5 miles) wide. The image channels have the following color assignments: red represents data acquired on April 10; green represents data acquired on October 1; blue corresponds to the ratio of the two data sets. Agriculture plays an important economic and social role in Brazil. One of the major problems related to Brazilian agriculture is estimating the size of planting areas and their productivity. Due to cloud cover and the rainy season, which occurs from November through April, optical and infrared Earth observations are seldom used to survey the region. An additional goal of monitoring this region is to watch the floodplains of rivers like Rio Sao Francisco in order to determine suitable locations for additional agricultural fields. This area belongs to the semi-arid northeastern region of Brazil, where estimates have suggested that about 10 times more land could be used for agriculture, including some locations which could be used for irrigation projects. Monitoring of soil moisture during the important summer crop season is of high priority for the future development and productivity of this region. In April the area was covered with vegetation because of the moisture of the soil and only small differences could be seen in X-band data. In October the run-off channels of this hilly region stand out quite clearly because the greenish areas indicated much less soil moisture and water content in plants. 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.

1994-01-01

471

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

PubMed

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. PMID:22029544

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

2011-11-01

472

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

NASA Technical Reports Server (NTRS)

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.

Bartle, John R.

2000-01-01

473

National decline in donor heart utilization with regional variability: 1995-2010.  

PubMed

The severe shortage of donor hearts limits the availability of transplantation for the growing population of patients with end-stage heart disease. We examined national trends in donor heart acceptance for transplant. OPTN data were analyzed for all potential adult cardiac organ donors between 1995 and 2010. Donor heart disposition was categorized as transplanted, declined for transplant or other. We studied changes in the probability of donor heart acceptance according to demographic and clinical characteristics, nationwide and by UNOS region. Of 82?053 potential donor hearts, 34% were accepted and 48% were declined (18% used for other purposes). There was a significant decrease in donor heart acceptance from 44% in 1995 to 29% in 2006, and subsequent increase to 32% in 2010. Older donor age, female sex and medical co-morbidities predicted non-acceptance. Donor age and co-morbidities increased during the study period, with a concomitant decrease in acceptance of hearts from donors with undesirable characteristics. Overall, predictors of heart non-use were similar across UNOS regions, although utilization varied between regions. Regional variation suggests a potential to improve heart acceptance rates in under-performing regions, and supports research and policy efforts aimed at establishing evidence-based criteria for donor heart evaluation and acceptance for transplantation. PMID:25676093

Khush, K K; Zaroff, J G; Nguyen, J; Menza, R; Goldstein, B A

2015-03-01

474

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

NASA Astrophysics Data System (ADS)

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

Gumbau, Manuel Forner

2010-11-01

475

Subsidence in Coastal Louisiana  

NASA Astrophysics Data System (ADS)

Understanding Subsidence: Implications for Coastal Restoration and Protection Planning; New Orleans, Louisiana, 13 January 2009; The high rates of subsidence in coastal Louisiana are a well-documented component of regional land loss, ecosystem function deterioration, and coastal engineering failures. For agencies tasked with managing the effects of subsidence, the wide variability of these rates and their sharp spatial gradients pose significant challenges. Further, there is a lack of scientific consensus on what processes are most responsible for the observed subsidence, which creates uncertainty surrounding spatial patterns of subsidence, as well as a lack of consensus on what areas are most susceptible to it—not trivial questions for the resource management community. To address these issues, the University of New Orleans (UNO) and the Louisiana Coastal Area Science and Technology Program held a symposium in January. The objective of the symposium was twofold: (1) to educate coastal managers on the assumptions of the contemporary methods of monitoring subsidence and (2) to solicit input from the management community on their primary subsidence concerns regarding coastal management projects such as levee construction and mechanical marsh creation, emphasizing spatial and temporal scale issues. Symposium outcomes were incorporated into a guidance manuscript prepared by UNO to help communicate the current scientific understanding of subsidence in coastal Louisiana to the nontechnical management community.

Yuill, Brendan; Reed, Denise J.

2009-06-01

476

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

PubMed Central

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

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

2012-01-01

477

Rethinking the advantage of zero-HLA mismatches in unrelated living donor kidney transplantation: implications on kidney paired donation.  

PubMed

The OPTN/UNOS Kidney Paired Donation (KPD) Pilot Program allocates priority to zero-HLA mismatches. However, in unrelated living donor kidney transplants (LDKT)-the same donor source in KPD-no study has shown whether zero-HLA mismatches provide any advantage over >0 HLA mismatches. We hypothesize that zero-HLA mismatches among unrelated LDKT do not benefit graft survival. This retrospective SRTR database study analyzed LDKT recipients from 1987 to 2012. Among unrelated LDKT, subjects with zero-HLA mismatches were compared to a 1:1-5 matched (by donor age ±1 year and year of transplantation) control cohort with >0 HLA mismatches. The primary endpoint was death-censored graft survival. Among 32,654 unrelated LDKT recipients, 83 had zero-HLA mismatches and were matched to 407 controls with >0 HLA mismatches. Kaplan-Meier analyses for death-censored graft and patient survival showed no difference between study and control cohorts. In multivariate marginal Cox models, zero-HLA mismatches saw no benefit with death-censored graft survival (HR = 1.46, 95% CI 0.78-2.73) or patient survival (HR = 1.43, 95% CI 0.68-3.01). Our data suggest that in unrelated LDKT, zero-HLA mismatches may not offer any survival advantage. Therefore, particular study of zero-HLA mismatching is needed to validate its place in the OPTN/UNOS KPD Pilot Program allocation algorithm. PMID:25440520

Casey, Michael Jin; Wen, Xuerong; Rehman, Shehzad; Santos, Alfonso H; Andreoni, Kenneth A

2015-04-01

478

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

PubMed

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. PMID:21298398

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

2011-10-01

479

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

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.

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

2010-01-01

480

Competitive complexation of nitrates and chlorides to uranyl in a room temperature ionic liquid.  

PubMed

By coupling EXAFS, UV-vis spectroscopy, and molecular dynamics and quantum mechanical calculations, we studied the competitive complexation of uranyl cations with nitrate and chloride ions in a water immiscible ionic liquid (IL), C(4)mimTf(2)N (C(4)mim(+): 1-butyl-3-methyl-imidazolium; Tf(2)N(-) = (CF(3)SO(2))(2)N)(-): bis(trifluoromethylsulfonyl)imide). Both nitrate and chloride are stronger ligands for uranyl than the IL Tf(2)N(-) or triflate anions and when those anions are simultaneously present, neither the limiting complex UO(2)(NO(3))(3)(-) nor UO(2)Cl(4)(2-) alone could be observed. At a U/NO(3)/Cl ratio of 1/2/2, the dominant species is likely UO(2)Cl(NO(3))(2)(-). When chloride is in excess over uranyl with different nitrate concentrations (U/NO(3)/Cl ratio of 1/2/6, 1/4/4, and 1/12/4) the solution contains a mixture of UO(2)Cl(4)(2-) and UO(2)Cl(3)(NO(3))(2-) species. Furthermore, it is shown that the experimental protocol for introducing these anions to the solution (either as uranyl counterion, as added salt, or as IL component) influences the UV-vis spectra, pointing to the formation of different kinetically equilibrated complexes in the IL. PMID:20557035

Gaillard, C; Chaumont, A; Billard, I; Hennig, C; Ouadi, A; Georg, S; Wipff, G

2010-07-19

481

Observaciones de fulguraciones en rayos X duros  

NASA Astrophysics Data System (ADS)

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.

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

482

Nonlinear Propagation of Mag Waves Through the Transition Region  

NASA Astrophysics Data System (ADS)

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 is essentially an MHI) moAe in the corona, converts to a modified fast and a slow mode, when the atmospheric beta decreases to one. Keq o : HYDROMAGNETICS SUN-CORONA

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

1990-11-01

483

The association of pretransplant HeartMate II left ventricular assist device placement and heart transplantation mortality.  

PubMed

Previous United Network for Organ Sharing (UNOS) analysis has shown an increase in posttransplant mortality with pretransplant pulsatile-flow left ventricular assist device (LVAD). Recent studies evaluating continuous-flow LVAD demonstrated improved durability, excellent survival, and improved quality of life. This study investigates the association of preheart transplant continuous-flow LVAD placement and posttransplant mortality using the UNOS database. Heart transplant patients listed after April 2004 (N = 48,090) during the era of HeartMate (HM) II LVAD usage were investigated. Patients with UNOS 1A and 1B status with (n = 1,435) and without HMII (n = 16,379) placement before the heart transplantation were evaluated. Preliminary descriptive statistics suggested an extensive heterogeneity in patient characteristics between HMII LVAD recipients and nonrecipients. Propensity scores (1:2) were used to match HMII LVAD recipients and nonrecipients characteristics and donor characteristics. This resulted in a final sample of 2,265 patients (758 with HMII pretransplant placement and 1,507 without HMII pretransplant placement). The Kaplan-Meier curves were evaluated for the differences in postheart transplant mortality in patients with and without HMII pretransplant placement. A time-dependent Cox regression model was used to study the hazard ratios (HRs) for the association between HMII pretransplant placement and posttransplant survival. The mean age of the study group was 51.9 years old (standard deviation: 12.3). HeartMate II pretransplant placement was associated with no statistically significant difference in the risk of 30 days (HR = 1.23, 95% confidence interval [CI]: 0.79-1.95, p = 0.36) and 1 year posttransplant mortality (HR = 1.31, 95% CI: 0.85-2.01, p = 0.22) compared with non-HMII recipients. The use of HMII LVAD before heart transplantation, however, was associated with a statistically significant 64% lower risk (HR = 0.36, 95% CI: 0.16-0.77, p = 0.01) of mortality among heart transplant patients who survived beyond the first year of transplantation. Continuous-flow LVAD pretransplant placement is associated with improved long-term (>1 year) survival after heart transplantation. PMID:24614355

Donneyong, Macarius; Cheng, Allen; Trivedi, Jaimin R; Schumer, Erin; McCants, Kelly C; Birks, Emma J; Slaughter, Mark S

2014-01-01

484

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

NASA Technical Reports Server (NTRS)

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.

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

1997-01-01

485

El Proyecto Gémini: informe actualizado y técnica de observación  

NASA Astrophysics Data System (ADS)

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.

Sahade, J.; Lapasset, E.; Levato, H.

486

Utilization of Home Grown Feeds in Producing Slaughter Cattle in the Gulf Coastal Plain of Texas  

E-print Network

CSIKOIALLT NANT fo TRANS Nr Vita, UitNOUT UROSK PATICN OK ANS TVPINO AOILIVT TRIS UORN SOULS NOV NAVC SCEN POOOISLC ~ TIIANNS ARE ALSO OUC II'f ONILORCN UNO SONKT INCO NCPt OUI CV UNILC I UA4 ROON IN4P AS A SVUOCRTI ANO CSPKCIAI. LV A F4RCION 4fUOCNfI I... aooaca XNAN stccaa ANO 'TNSNCFoac ed 01T RCSIIlac 14 LONO A FCCNIM rcaleer HCIFONO VlLL QeuaLLT NCCT TNC NANNSf OCNANOS 2 to $ NONTNS Caal, lco TRAN 4TSCNS OF TNC okNC Aocy JONSS (f f)l Ngrea/cg fNAV CvcN TNDOON aooIIT ONc NALF 1F TNC OOIIOCNtakf Ca...

Estrada, Hugo Jose

1960-01-01

487

Actividad en la superficie lunar: fenómenos lunares transitorios  

NASA Astrophysics Data System (ADS)

Los fenómenos lunares transitorios que se presentan en la superficie de la Luna son raros, poco frecuentes y de corta duración, lo que origina que exista poca información al respecto. Esto hace evidente la importancia de estudiarlos con detalle. Han sido registrados como nubes muy brillantes a base de gases residuales de la pasada actividad geológica lunar, de diferentes colores (amarillas, anaranjadas, rojas), de acuerdo con el tiempo de duración cambian su color, con tamaños de pocos kilómetros hasta de centenares de kilómetros. Por lo general, se presentan en ciertos lugares, como cráteres (Aristarco, Plato, Kepler, etc.), y en los bordes de los mares lunares (mar de la Fecundidad, zona de los montes Alpes, etc.).Variando su tiempo de exposición puede ser de unos pocos segundos hasta un poco más de una hora.

Roa, A. F. C.

488

Occlusion of small arteries in the neuroendovascular and head and neck territory-initial experiences with a microvascular plug.  

PubMed

The microvascular plug (MVP, UNO; Reverse Medical Corp, Irvine, California) is designed for occlusion of small vessels that are accessible only by microcatheters. This report describes eight neuroendovascular cases, including aneurysms and acute or imminent hemorrhage, treated with 10 microvascular plug devices. Instantaneous flow arrest was observed in all but two cases, in which the device was undersized, requiring supplementary coiling or microvascular plug replacement, respectively. Persistent occlusion was confirmed on follow-up examinations. There was one adverse event, which involved inadvertent device detachment after repeated resheathing. The microvascular plug appears to be suitable for the designated purpose. Further studies need to evaluate safety and confirm long-term durability of the results. PMID:25735524

Kleine, Justus F; Prothmann, Sascha; Boeckh-Behrens, Tobias

2015-03-01

489

Planning electricity transmission to accommodate renewables: Using two-stage programming to evaluate flexibility and the cost of disregarding uncertainty  

E-print Network

.2 | f3 – f3b |  11500 1.7 | f4 – f4 b |  12500 3.4 | f5 – f5b |  2150 1.0 | f6 – f6b |  5500 0.4 | f7 – f7 b |  0a  4.6 | f8 – f8b |  0a  2.0 a. Note that these initial maximum flows are zero, as investment is necessary to make them feasible.  f2b f3b f4 b...   resulting  network,  wit   non?negative  flows  between  all  connected  regions.   h   Table 1. Regi d SYS Study Zones  12  ons an Region  SYS Study Zones  SCO  Z1–Z6 UNO  Z7 NOR  Z8–Z9 MID  Z10–Z11 CEN  Z12–Z14, Z16 SWE  Z17 EST  Z15   SCO  f1bf1 f7 f7 b...

van der Weijde, Adriaan Hendrik; Hobbs, Benjamin F.

2011-01-31

490

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

SciTech Connect

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.

Koura, H.; Tachibana, T.; Yamada, M. [Advanced Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555 (Japan); Uno, M. [Advanced Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555 (Japan); Ministry of Education, Science, Sports and Culture, 3-2-2 Kasumigaseki, Chiyoda-ku, Tokyo 100-0013 (Japan)

1998-12-21

491

Accounting methods for recognition of fixed asset underdepreciation  

E-print Network

~CCOOmrxta:::;. "?OO":-ON:. : C;eN rX~N G~'' iiLGD A3o 'i UNO'''iJ3r'l'. '4'XLTX iN . KcBQzcl . RMllson ILM811 June 1:i, ; 9, &29"/5 Qubaittcd to thc . "acuity of tbc Agricultural and ". echanical ColloCe of foxes ) arti 11 I'lllfi1i3ent of the . A...Im& corporate net tncons in thc hi&~ry of . Luericon baeineec Xet prices continue to A, vs~ %91ag%838ot feels that pri&% nuet ~ high to pcpiilt their continued operation in tho face of the risinI "cost of living" of business e ibe high costs of new assete...

Hidell, Richard Robinson

1948-01-01

492

TRANSMISIÓN VERTICAL DE HTLV-1 EN EL PERÚ  

PubMed Central

La infección por el virus linfotrópico humano de células T tipo 1 (HTLV-1) ha sido descrita en muchas áreas del mundo, como en los países del Caribe, Japón, África, Oceanía y en Sudamérica. En la presente revisión definimos la endemicidad del HTLV-1 en el país, planteando cuatro criterios epidemiológicos. Luego discutimos el tema central de la revisión: la transmisión vertical del HTLV-1, que en nuestro país sería uno de los principales mecanismos de transmisión. Dentro del desarrollo de este aspecto en particular, presentamos una estimación de la tasa de transmisión vertical y los factores de riesgo asociados con la transmisión vertical sobre la base de una revisión exhaustiva de estudios nacionales y extranjeros. Con esta revisión pretendemos dar una primera aproximación al estudio de la trasmisión vertical de HTLV-1, un aspecto poco estudiado en nuestro medio. PMID:21537777

Villaverde, Jorge Alarcón; Romaní, Franco Romaní; Torres, Silvia Montano; Zunt, Joseph R.

2012-01-01

493

Micro, meso, macro  

NASA Astrophysics Data System (ADS)

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.

Liljenström, Hans; Svedin, Uno

494

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

SciTech Connect

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.

Ibrahim, Saad M. [Northwestern University Feinberg School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Department of Radiology, Section of Interventional Radiology (United States); Kulik, Laura [Northwestern University Feinberg School of Medicine, Department of Medicine, Division of Hepatology (United States); Baker, Talia [Northwestern University Feinberg School of Medicine, Division of Transplant Surgery (United States); Ryu, Robert K. [Northwestern University Feinberg School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Department of Radiology, Section of Interventional Radiology (United States); Mulcahy, Mary F. [Northwestern University Feinberg School of Medicine, Department of Medicine, Division of Hematology and Oncology, Robert H. Lurie Comprehensive Cancer Center (United States); Abecassis, Michael [Northwestern University Feinberg School of Medicine, Division of Transplant Surgery (United States); Salem, Riad; Lewandowski, Robert J., E-mail: r-lewandowski@northwestern.edu [Northwestern University Feinberg School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Department of Radiology, Section of Interventional Radiology (United States)

2012-10-15

495

Using a Standardized Donor Ratio to Assess Organ Procurement Organizations  

PubMed Central

Objective To develop a Standardized Donor Ratio (SDR) as an outcome measure for evaluating the effectiveness of organ procurement organizations (OPOs). Data Sources/Study Setting All deaths by cause in the United States during 1993–1994 as reported in the Vital Mortality Statistics, Multiple Cause of Death files. The OPO-specific data were provided by the United Network for Organ Sharing (UNOS). Study Design Each OPO's expected number of donors was calculated by applying national donation rates to deaths with potential for donation in 24 age, sex, and race cells. The SDR was calculated by dividing the observed number of donors by the expected number. The X2 tests of the hypothesis that the OPO's performance differed from the national norm of 1.0 were performed. The SDR was compared to the existing performance standard based on the unadjusted number of donors per million live population in the OPO's service area. An ordinary least squares (OLS) regression assessed predictors of the SDR. Principal Findings The SDRs ranged from 0.41 to 1.99. Twenty-nine of 64 OPOs had SDRs significantly different than 1.0. The SDRs were positively associated with the percent of white living population and the number of organ types transplanted per transplant center served by the OPO. Conclusions The SDRs can be used by Centers for Medicare and Medicaid Services (CMS), UNOS, and OPOs to target quality improvement initiatives, present more accurate comparisons of OPO performance, and develop public policy on the evaluation of the effectiveness of organ procurement efforts. PMID:12479499

Stogis, Sheryl; Hirth, Richard A; Strawderman, Robert L; Banaszak-Holl, Jane; Smith, Dean G

2002-01-01

496

Absence of systemic toxicity changes following intramuscular administration of novel pSG2.HIVconsv DNA, ChAdV63.HIVconsv and MVA.HIVconsv vaccines to BALB/c mice?  

PubMed Central

Background The systemic toxicity of three candidate HIV-1 vaccines plasmid pSG2.HIVconsv DNA (D), ChAdV63.HIVconsv (C) and MVA.HIVconsv (M) expressing chimeric immunogen derived from the most conserved regions of the HIV-1 proteome was evaluated in two repeat-dose studies in the male and female BALB/c mice. Methods In study UNO011, mice received three doses of 2 × 107 plaque-forming units of MVA.HIVconsv vaccine (MMM). In study UNO012, mice received 3 doses of 50 ?g of pSG2.HIVconsv DNA followed by a single dose of 5.95 × 109 virus particles of ChAdV63.HIVconsv vaccine (DDDC). Similarly constituted control groups received the vehicle alone (phosphate buffered saline) at the same volume-dose. All vaccines were administered by intramuscular needle injection into the right hind limb at 14-day intervals and animals were sacrificed 7 days after the last dose. Assessment of local and systemic toxicity was made. Induction of HIV-1-specific responses was confirmed. Parameters assessed included clinical condition, body weight, food consumption, ophthalmoscopy, haematology, blood chemistry, organ weight and macroscopic and microscopic pathology. Results In both studies, treatment with the candidate vaccines elicited strong HIV-1-specific T-cell responses. The vaccine treatment was well-tolerated without any adverse systemic toxicological changes. The local toxicity findings observed in these studies were consistent with the predicted response to a vaccine/substance administration by intramuscular injection. Conclusions The three novel anti-HIV-1 vaccines were well tolerated when administered by intramuscular injection to BALB/c mice. These results supported an application for authorisation by the Medicines and Healthcare Products Regulatory Agency of the UK to test these vaccines for the first time in phase I clinical trials in healthy both uninfected subjects and HIV-1-infected patients stable on antiretroviral treatment. PMID:23831324

Ondondo, Beatrice; Brennan, Caroline; Nicosia, Alfredo; Crome, Steven J.; Hanke, Tomáš

2013-01-01

497

Protegiendo a su familia de los terremotos-Los siete pasos a la seguridad para prepararse en caso de un terremoto (en espa?ol y en ingles)  

USGS Publications Warehouse

Les escribimos esta carta para comunicarle un mensaje sumamente importante sobre las preparaciones de emergencia. Historicamente, hemos sufrido terremotos aqui en el Area de la Bahia de San Francisco que han causado graves privaciones para los residentes de la comunidad y da?os increibles a nuestras ciudades. Es probable que suframos un terremoto de gran magnitud en los proximos 30 a?os. Muchos de nosotros venimos de otros paises donde hemos pasado por terremotos y por eso creemos entenderlos. Sin embargo, la manera que nos preparamos para terremotos en nuestros paises de origen puede ser distinta a la que empleamos aca en los Estados Unidos. Muy pocas personas mueren a causa de los derrumbes de los edificios en el Area de la Bahia porque la mayoria de los edificios son construidos para resistir el sacudimiento de la tierra. Pero es muy probable que su familia no tenga atencion medica, alimentos o que esten separados del uno al otro por dias o semanas. Finalmente depende de usted mantener a su familia a salvo hasta que llegue asistencia, por eso les pedimos que nos unamos para aprender a cuidar a su familia antes, durante, y despues de un terremoto. El primer paso es leer este libro. Cada uno de su familia, ni?os y adultos, pueden aprender como prepararse para un terremoto. Haga participar e incluya sus ni?os; pueden ayudarle a prepararse. Aproveche las clases ofrecidas en su comunidad sobre las preparaciones de terremotos por la Cruz Roja Estadounidense (American Red Cross). Estos cursos de preparacion son gratis y disponibles en espa?ol para todos en la comunidad sin tomar en cuenta la historia de la familia, estado legal, genero o edad. Les recomendamos que tome ventaja de estas clases gratuitas. Para mas informacion consulte la ultima pagina de este libro. Recuerde que un terremoto puede ocurrir sin aviso y la unica manera de reducir el da?o de terremotos es estar preparados. !Preparese!

Desarrollado por American Red Cross, Asian Pacific Fund, California Earthquake Authority, Governor's Office of Emergency Services, New America Media, U.S. Department of Homeland Security Federal Emergency Management Agency, and U.S. Geological Survey

2007-01-01

498

Space Radar Image of Long Valley, California -Interferometry/Topography  

NASA Technical Reports Server (NTRS)

These four images of the Long Valley region of east-central California illustrate the steps required to produced three dimensional data and topographics maps from radar interferometry. All data displayed in these images were acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour during its two flights in April and October, 1994. The image in the upper left shows L-band (horizontally transmitted and received) SIR-C radar image data for an area 34 by 59 kilometers (21 by 37 miles). North is toward the upper right; the radar illumination is from the top of the image. The bright areas are hilly regions that contain exposed bedrock and pine forest. The darker gray areas are the relatively smooth, sparsely vegetated valley floors. The dark irregular patch near the lower left is Lake Crowley. The curving ridge that runs across the center of the image from top to bottom is the northeast rim of the Long Valley Caldera, a remnant crater from a massive volcanic eruption that occurred about 750,000 years ago. The image in the upper right is an interferogram of the same area, made by combining SIR-C L-band data from the April and October flights. The colors in this image represent the difference in the phase of the radar echoes obtained on the two flights. Variations in the phase difference are caused by elevation differences. Formation of continuous bands of phase differences, known as interferometric 'fringes', is only possible if the two observations were acquired from nearly the same position in space. For these April and October data takes, the shuttle tracks were less than 100 meters (328 feet) apart. The image in the lower left shows a topographic map derived from the interferometric data. The colors represent increments of elevation, as do the thin black contour lines, which are spaced at 50-meter (164-foot) elevation intervals. Heavy contour lines show 250-meter intervals (820-foot). Total relief in this area is about 1,320 meters (4,330 feet). Brightness variations come from the radar image, which has been geometrically corrected to remove radar distortions and rotated to have north toward the top. The image in the lower right is a three-dimensional perspective view of the northeast rim of the Long Valley caldera, looking toward the northwest. SIR-C C-band radar image data are draped over topographic data derived from the interferometry processing. No vertical exaggeration has been applied. Combining topographic and radar image data allows scientists to examine relationships between geologic structures and landforms, and other properties of the land cover, such as soil type, vegetation distribution and hydrologic characteristics. 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.

1994-01-01

499

Space Radar Image of Weddell Sea, Antarctica  

NASA Technical Reports Server (NTRS)

This Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar color composite shows a portion of the Weddell Sea, which is adjacent to the continent of Antarctica. The image shows extensive coverage of first-year sea ice mixtures and patches of open water inside the ice margin. The image covers a 100 kilometer by 30 kilometer (62 mile by 18.5 mile) region of the southern ocean, centered at approximately 57 degrees south latitude and 3 degrees east longitude, which was acquired on October 3, 1994. Data used to create this image were obtained using the L-band (horizontally transmitted and vertically received) in red; the L-band (horizontally transmitted and received) in green; and the C-band (horizontally transmitted and received) in blue. The sea ice, which appears rust-brown in the image, is composed of loosely packed floes from approximately 1 meter to 2 meters (3 feet to 6.5 feet) thick and ranging from 1 meter to 20 meters (3 feet to 65.5 feet) in diameter. Large patches of open water, shown as turquoise blue, are scattered throughout the area, which is typical for ice margins experiencing off-ice winds. The thin, well-organized lines clearly visible in the ice pack are caused by radar energy reflected by floes riding the crest of ocean swells. The wispy, black features seen throughout the image represent areas where new ice is forming. Sea ice, because it acts as an insulator, reduces the loss of heat between the relatively warm ocean and cold atmosphere. This interaction is an important component of the global climate system. Because of the unique combination of winds, currents and temperatures found in this region, ice can extend many hundreds of kilometers north of Antarctica each winter, which classifies the Weddell Sea as one of nature's greatest ice-making engines. During the formation of sea ice, great quantities of salt are expelled from the frozen water. The salt increases the density of the upper layer of sea water, which then sinks to great depths. 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.

1994-01-01

500