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1

Michael Porter 30 anos depois de Estratégia Competitiva: Influência do autor nos trabalhos brasileiros em estratégia ? estudo bibliométrico em trabalhos dos últimos dez anos do Enanpad  

Microsoft Academic Search

Os estudos de estratégia empresarial têm sido muito influenciados pelos trabalhos de Michael Porter, em particular na estratégia competitiva, análise da indústria e das vantagens competitivas das nações. Neste artigo, analisamos a influência de Porter nos trabalhos brasileiros em estratégia, a partir dos trabalhos selecionados e apresentados no ENANPAD. No levantamento para a análise dos artigos, considerando 10 anos de

Aline Botelho Schneider; Marcelo Lopes Carneiro; Fernando A. Ribeiro Serra; Manuel Portugal Ferreira

2008-01-01

2

Competncia social e empatia: um estudo sobre resilincia com crianas em situao de pobreza  

Microsoft Academic Search

Social competence and empathy: Study about resilience with children in poverty Resumo O objetivo desse estudo foi avaliar a competncia social e a empatia em crianas escolares que vivem em situao de po- breza. Participaram da pesquisa 100 crianas, de ambos os sexos, com idades entre seis e nove anos. Os instrumentos utilizados foram o Teste das Histrias Incompletas (THI)

Alessandra Marques Cecconello; Slvia Helena Koller

2000-01-01

3

SEI: An update  

NASA Technical Reports Server (NTRS)

An update on the Space Exploration Initiative (SEI) is given in viewgraph form. Topics covered include the key prerequisites of human exploration, project planning, Mars and lunar explorations, supporting technologies, near-term strategies for SEI, human support elements, and Space Station Freedom SEI accommodations.

Peach, Lewis L., Jr.

1991-01-01

4

SEI  

Microsoft Academic Search

This is an interactive installation with which one can gradually appreciate artwork by maintaining a calm and peaceful state, both physically and spiritually. Japan has long embraced the custom of cherishing a sense of tranquility. Potential subjects of stillness can be time, space or human motion. For example, in the art of tea ceremony, a Japanese tradition, quiet time and

Makoto Danjou; Hiroko Uchiyama

2008-01-01

5

76 FR 72729 - SEI Investments Management Corporation, et al.  

Federal Register 2010, 2011, 2012, 2013

...open-end management investment companies relying on...instruments. Applicants: SEI Investments Management Corporation (``SIMC''); SEI Investments Distribution Co...SEI Alpha Strategy Portfolios, LP...

2011-11-25

6

The GEMS-2 SEIS Experiment  

NASA Astrophysics Data System (ADS)

The SEIS experiment is the primary payload of the Geophysical Monitoring Station (GEMS) Mission Proposal, submitted to NASA in the frame of the 2010 Discovery program, and recently selected for the phase A study. The objective of the GEMS SEIS experiment is the determination of the deep internal structure of Mars. In particular, geophysical parameters of first importance, such as the state (liquid/solid) and size of the core, as well as structure of the mantle and shape of discontinuities will be determined by the experiment. It will measure seismic activity in a very broad band of signal, from the tidal frequencies (0.05 mHz) up to the short period frequencies (50 Hz), to address the widest range of scientific questions, from the state of the inner core to the meteoritic rate measurement. Infrasound, which might be associated to dust devils and atmospheric discharge, will be also monitored. The instrument integrates a Very Broad Band (VBB) 3 axis seismometer, completed by another trihedron of MEMS short period seismometers, environmental sensors for pressure, wind and temperature, and an infrasound sensor is additionally considered. The sensors will be deployed on the Martian ground by a robotic arm from the Phoenix lander platform and protected by a wind and thermal shield. The sensor assembly, which contains all seismic sensors, the leveling system, as well as house-keeping and temperature measurements, will be deployed on the soil in order to allow the best possible mechanical coupling with the ground motion. Thanks to the wind and thermal shield, together with the sensors' specific containers (vacuum sphere for VBBs), long term VBB bias will be protected from both temperature and pressure variations (as well as passively compensated), allowing the sensor to operate in the rough Martian thermal environment. A dedicated electronics will manage the overall experiment and ultra-low noise, space qualified 24 bits A/D converters will perform the acquisition. The overall mass of the SEIS instrument is about 9.6 kg, including all sensors, data control processors and installation devices, while power consumption is not exceeding 2W. The proposed instrument has been developed up to PDR in the frame of the ExoMars Humbold payload, and further developments were achieved in the frame of the Japanese SELENE2 project. Most critical parts have been tested, including shock tests for pivots, electronics components and displacement sensors. TRL 6 is expected at the end of 2011. The GEMS phase A will end by March 2012, and the final NASA continuation decision is due in June 2012. GEMS is planned to be launched in 2016.

Tillier, S.; De Raucourt, S.; Mimoun, D.; Lognonne, P.; Giardini, D.; Christensen, U. R.; Pike, W. T.; Banerdt, B.; Laudet, P.; Kerjean, L.; Hurst, K. J.; Zweifel, P.; Mance, D.; Roll, R.; Bierwirth, M.; Gagnepain-Beyneix, J.; Nibut, T.; Robert, O.; Gabsi, T.; Pot, O.; Lecomte, B.; Schibler, P.; Mocquet, A.; Garcia, R.

2011-12-01

7

SeisMac Seismogram Modeling  

NSDL National Science Digital Library

Teacher will demonstrate the SeisMac program. Shake the laptop in the three different directions, showing how the different directions are recorded on the three different components. Adjust both the vertical and horizontal scales to show how the same motions can be represented differently. Setting the vertical scales on -1 to +1, tilt the laptop 90 deg in each of the three directions to demonstrate that the seismograms are records of acceleration (accelerograms). When the laptop is oriented normally, the baseline of the vertical component is 1 g and the two horizontal components have baselines of 0 g. However, when the laptop is tilted the vertical component goes to 0 g and one of the horizontal components will go to 1 g. Teacher will present real 3-component seismograms for actual data, and discuss the major seismic phases (P, S, Love, Rayleigh), showing the components they arrive on: P is primarily on vertical, S is primarily on radial and transverse, Love is primarily on the transverse, and the Rayleigh wave is primarily on both vertical and radial components. Students will take turns shaking the seismometer to try to directly replicate the actual seismograms. If two sets of seismograms are used, the teacher can talk about the differences between seismograms at stations that are nearer or further from the seismometer. Has minimal/no quantitative component Addresses student misconceptions

Wysession, Michael

8

The INSIGHT SEIS VBB Experiment  

NASA Astrophysics Data System (ADS)

The SEIS experiment is the primary payload of the Interior Structure investigation using Seismology and Heat Transport (INSIGHT) Mission Proposal, submitted to NASA in the frame of the 2010 Discovery program, and selected for a competitive phase A study, together with two other projects. The objective of the INSIGHT SEIS experiment is the determination of the deep internal structure of Mars. In particular, geophysical parameters of first importance, such as the state (liquid/solid) and size of the core, structure of the mantle, shape of discontinuities, thickness of the crust will be determined by the experiment. It will measure seismic activity in a very broad band of signal, from the tidal frequencies (0.05 mHz) up to the short period frequencies (50 Hz), to address the widest range of scientific questions, from the state of the core to the meteoritic impact and quake rates. The instrument integrates a Very Broad Band (VBB) 3 axis seismometer, completed by another trihedron of MEMS short period seismometers, environmental sensors for pressure, wind and temperature, The sensors will be deployed on the Martian ground by a robotic arm from a Phoenix-type lander platform and protected by a wind and thermal shield. The sensor assembly, which contains all seismic sensors, the leveling system, as well as house-keeping and temperature measurements, will be deployed on the soil in order to allow the best possible mechanical coupling with the ground motion. The wind and thermal shield, the sensors' specific containers (vacuum sphere for VBBs) and a passive thermal compensation system will achieve a very high protection of the VBB against temperature and pressure variations, allowing the sensor to operate in the rough Martian thermal environment while reaching a deection threshold below 10-9 ms-2 Hz-1/2 in the VBB bandwidth. A dedicated electronics will manage the overall experiment and ultra-low noise, space qualified 24 bits A/D converters will perform the acquisition. The proposed instrument has been developed up to PDR in the frame of the ExoMars Humbold payload in 2009, and further developments were achieved in the frame of the Japanese SELENE2 project and the phase A of the INSIGHT project. During the INSIGHT Phase A, Tests of the Earth version of the VBB have been performed in either low noise seismic vault, in the Black Forest Observatory, or in more realistic conditions under wind and thermal shield at the Reunion Island. Most critical parts have been thoroughly tested, and the qualification models are ready to be produced in case of selection. The INSIGHT phase A has ended in March 2012, and the final NASA continuation decision is due in August 2012. If selected, INSIGHT will be launched in 2016.

Tillier, S.; De Raucourt, S.; Lognonne, P. H.; Banerdt, B.; Mimoun, D.; Giardini, D.; Christensen, U. R.; Pike, W. T.; Zweifel, P.; Mance, D.; Bierwirth, M.; Laudet, P.; Perez, R.; Kerjean, L.; Hurst, K. J.; Mocquet, A.; Garcia, R. F.

2012-12-01

9

The InSight SEIS Experiment  

NASA Astrophysics Data System (ADS)

This abstract presents the design of the SEIS instrument, which is the main instrument of the InSight mission; the InSight mission has been pre-selected in the frame of the 2012 Discovery mission selection.

Mimoun, D.; Lognonn, P.; Banerdt, W. B.; Hurst, K.; Deraucourt, S.; Gagnepain-Beyneix, J.; Pike, T.; Calcutt, S.; Bierwirth, M.; Roll, R.; Zweifel, P.; Mance, D.; Robert, O.; Nbut, T.; Tillier, S.; Laudet, Ph.; Kerjean, L.; Perez, R.; Giardini, D.; Christenssen, U.; Garcia, R.

2012-03-01

10

Millimeter wavelength communications applications for the SEI  

NASA Technical Reports Server (NTRS)

The potentially complex missions of the Space Exploration Initiative (SEI) require advanced lunar communications, navigation, and information systems to provide voice, data, and image transmissions. The objectives here are to determine which SEI telecommunications applications will benefit from millimeter wave technology, assess the state of the art in millimeter wave technology, and describe the technology development shortfalls with respect to potential mission time frames. The assumptions for the analysis as well as other non-performance related issues are also presented.

Ponchak, Denise S.; Zuzek, John E.; Spence, Rodney L.; Whyte, Wayne A., Jr.

1991-01-01

11

Final SEIS, U.S. Antarctic Prog.  

NSF Publications Database

The Final SEIS updates the 1980 Programmatic Environmental Impact Statement (PEIS) and assesses potentially significant environmental impacts of proposed program actions. USAP FACILITIES AND ACTIVITIES The USAP currently operates three permanent year-round stations in Antarctica (McMurdo, Amundsen-Scott South Pole, and Palmer stations). ENVIRONMENTAL IMPACTS Alternative 1?No Further Action Materials and solid and hazardous waste management practices under all alternatives pose minor risks to ...

12

The SEIS InSight VBB Experiment  

NASA Astrophysics Data System (ADS)

Introduction: The SEIS experiment is the primary payload of the Interior Structure Investigation using Seismology and Heat Transport (InSight) mission selected by NASA in August 2012 to be the next Mars mission. The objective of the InSight SEIS experiment is the determination of the deep internal structure of Mars. In particular, geophysical parameters of first importance, such as the state (liquid/solid) and size of the core, structure of the mantle, shape of discontinui-ties and thickness of the crust will be determined by the experiment. It will measure seismic activity over a very broad frequency band, from tidal frequencies (0.05 mHz) up to high frequencies (50 Hz), to address a wide range of scientific questions, from the state of the core to the meteoritic impact rate, marsquake rate and the response of the planet to the Phobos tide. Description of the instrument: The instrument includes notably a Very Broad Band (VBB) 3 axis seis-mometer which is developed by the ';Institut du Globe de Paris' (IPGP) under the funding of CNES. The sensor assembly, which also contains a MEMS short-period seismometer, will be deployed on the Martian ground by a robotic arm from a Phoenix-type lander platform and will be protected by a wind and thermal shield. The wind and thermal shield,together with a vacuum sphere and a passive compensation system will achieve a very high protection of the VBB against temperature and pressure variations, allowing the sensor to operate in the rough Martian thermal environment while reaching a detection threshold below 10-9 ms-2 Hz-1/2 in the VBB bandwidth. Conclusion: Performance has been demonstrated with previous prototypes and the SEIS experiment of the InSight mission will therefore provide high-quality seismic signal acquisition and associated seismic information during one martian year. The delivery of the payload is planned for the end of 2014 and the launch is in March 2016 SEIS deployed on the ground next to the lander Single-axis VBB-prototype with proximity electronics

Nebut, T.; Lognonne, P. H.; Banerdt, W. B.; De Raucourt, S.; Beyneix, J.; Dandonneau, P. A.; Gabsi, T.; Robert, O.; Tillier, S.; Hurst, K. J.; Mimoun, D.; Christensen, U. R.; Bierwierth, M.; Roll, R.; Pike, W. T.; Calcutt, S. B.; Giardini, D.; Mance, D.; Zweifel, P.; Laudet, P.; Kerjean, L.; Perez, R.

2013-12-01

13

LLNL contributions to MPD thrusters for SEI  

NASA Technical Reports Server (NTRS)

Some of the topics covered with respect to the Lawrence Livermore National Laboratory's (LLNL's) contributions to Magnetoplasmadynamic (MPD) Thrusters for the Space Exploration Initiative (SEI) include: an IR camera, plasma-induced erosion/redeposition, the Mirror Fusion Test Facility-B (MFTF-B), the Thruster Lifetime Test Facility, the RACE Compact Torus Accelerator Facility, and a RACE program summary. Some of the other topics addressed include: flux contours for HAM simulation, comparison of RACE data of plasma ring formation with the HAM 2-D magnetohydrodynamic code, and the 2-D Ring Acceleration Code (TRAC).

Hooper, Edwin Bickford

1991-01-01

14

Sei whale sounds recorded in the Antarctic  

NASA Astrophysics Data System (ADS)

Sei whales are the least well known acoustically of all the rorquals, with only two brief descriptions of their calls previously reported. Recordings of low-frequency tonal and frequency swept calls were made near a group of four or five sei whales in waters west of the Antarctic Peninsula on 19 February 2003. These whales also produced broadband sounds which can be described as growls or whooshes. Many of the tonal and frequency swept calls (30 out of 68) consist of multiple parts with a frequency step between the two parts, this being the most unique characteristic of the calls, allowing them to be distinguished from the calls of other whale species. The average duration of the tonal calls is 0.45+/-0.3 s and the average frequency is 433+/-192 Hz. Using a calibrated seafloor recorder to determine the absolute calibration of a sonobuoy system, the maximum source level of the tonal calls was 156+/-3.6 dB re 1 ?Pa at 1 m. Each call had different character and there was no temporal pattern in the calling.

McDonald, Mark A.; Hildebrand, John A.; Wiggins, Sean M.; Thiele, Deborah; Glasgow, Deb; Moore, Sue E.

2005-12-01

15

Sei whale sounds recorded in the Antarctic.  

PubMed

Sei whales are the least well known acoustically of all the rorquals, with only two brief descriptions of their calls previously reported. Recordings of low-frequency tonal and frequency swept calls were made near a group of four or five sei whales in waters west of the Antarctic Peninsula on 19 February 2003. These whales also produced broadband sounds which can be described as growls or whooshes. Many of the tonal and frequency swept calls (30 out of 68) consist of multiple parts with a frequency step between the two parts, this being the most unique characteristic of the calls, allowing them to be distinguished from the calls of other whale species. The average duration of the tonal calls is 0.45 +/- 0.3 s and the average frequency is 433 +/- 192 Hz. Using a calibrated seafloor recorder to determine the absolute calibration of a sonobuoy system, the maximum source level of the tonal calls was 156 +/- 3.6 dB re 1 microPa at 1 m. Each call had different character and there was no temporal pattern in the calling. PMID:16419837

McDonald, Mark A; Hildebrand, John A; Wiggins, Sean M; Thiele, Deborah; Glasgow, Deb; Moore, Sue E

2005-12-01

16

SeisMac 2.0  

NSDL National Science Digital Library

SeisMac is a free Mac OS X application that turns MacBook or MacBook Pro laptops into seismographs. It uses the Sudden Motion Sensor (accelerometer) that these machines are equipped with to create and display real-time, three-axis acceleration graphs (seismograms). The resizable, real-time scrolling display lets students see the seismic waves from tapping their toes on the floor, lay the laptop on their chests to see their heartbeats, or see seismic waves from real earthquakes. The software allows users to pause the display to study an event; scroll back in time to see older data; enlarge or contract the graph, both vertically and horizontally; and copy, print or save the screen. Time labels tell exactly when an event occurred, the sampling rate can be adjusted, and acceleration data can be smoothed. The site features a link to download the software and a link to help files for installing and using it.

17

Fistula in ano: a surgical audit  

Microsoft Academic Search

Objective: To document a 15 year experience of fistula in ano surgery. Design: Retropective audit of patients. Subjects: All patients referred with fistula in ano between 1975 and 1990. Setting: Colorectal Service, University Department of Surgery, Wellington School of Medicine. Main outcome measures: Resolution of symptoms and morbidity of surgery. Results: 92 operations were performed in 88 patients. There were

W. H. Isbister

1995-01-01

18

Future needs for space robots for SEI. [Space Exploration Initiative  

NASA Technical Reports Server (NTRS)

High level systems engineering modeling and analysis activities for the Space Exploration Initiative (SEI) are reviewed, with emphasis on planet surface systems. Particular attention is given to SEI studies, preliminary space robotic system requirements, and usefulness of space robotic systems developed to operate on planetary surfaces on earth. It is concluded that supervised intelligent systems on the planet surfaces are necessary to make SEI planet surface activities reliable and productive and encompass capabilities for control and monitoring of all elements, including supervised autonomous robotic systems. Amplification of human capabilities due to applying more knowledge and reasoning in more flexible and appropriate ways than conventional automation approaches will provide more robust performance, greater choice of interaction modes with operators, and greater transparency of operation.

Erickson, Jon D.; Price, Charles R.; Cooke, Douglas

1992-01-01

19

Communications systems evolutionary scenarios for Martian SEI support  

NASA Technical Reports Server (NTRS)

A set of architectures for the Mars-earth SEI space communications link is identified and characterized. A 'road map' is defined that illustrates the most logical and efficient evolutionary paths for the SEI Mars-earth link. The major features of the road map include three alternative evolutionary paths meeting the data rate requirements that may grow from 10 Mbps to 1 Gbps in the 2008-2025 time frame. All three paths begin with a Ka-band MRS-EST baseline link in 2000, and diverge from this baseline as time progresses.

Kwong, P. W.; Bruno, R. C.

1991-01-01

20

The Mars SEIS Experiment: A Mars Seismic Package  

NASA Technical Reports Server (NTRS)

The Mars SEIS experiment. The SEIS experiment was first proposed by IPGP (and accepted) for the NetLander mission. It integrates two VBB (Very Broad Band) seismometers, a three axis Short Period seismometer and a series of environmental sensors for pressure, infra-sounds and temperature. IPGP (France) has the overall responsibility of the experiment and is responsible for the seismic and environmental sensors. ETHZ (Switzerland) is responsible for the electronics of the experiment and JPL (USA) for the SP (Short Period) sensors. As NetLander mission has been cancelled (while fortunately the development still goes on), this seismic package can be proposed for future Mars missions.

Mimoun, D.; Lognonne, P.; Banerdt, W. B.; Schibler, P.; Giardini, D.; Pont, G.

2005-01-01

21

Solid electrolyte interphase /SEI/ electrodes: lithium/polysulphide-THF system  

NASA Astrophysics Data System (ADS)

The electrochemical behaviour of lithium and tungsten electrodes in THF solutions of Li2Sn was studied. The lithium is covered by a passivating layer, most probably Li2S, which has the property of a solid electrolyte interface (SEI). Electrochemical measurements and SEM studies confirm that the passivating layer thickness increases with immersion time of the electrode in solution. This layer decreased the lithium corrosion rate by five orders of magnitude. Alternating current measurements on tungsten electrodes during plating and stripping of lithium confirm a previous assumption that the lithium is always covered by a passivating layer approximately 4 nm thick. The ionic resistivity of the SEI which covers the lithium and tungsten (during Li plating and stripping) is the same, approximately between 1 and 4 x 10 to the 7th ohm cm.

Peled, E.; Yamin, H.

22

MatSeis developer's guide:version 1.0.  

SciTech Connect

This guide is intended to enable researchers working with seismic data, but lacking backgrounds in computer science and programming, to develop seismic algorithms using the MATLAB-based MatSeis software. Specifically, it presents a series of step-by-step instructions to write four specific functions of increasing complexity, while simultaneously explaining the notation, syntax, and general program design of the functions being written. The ultimate goal is that that the user can use this guide as a jumping off point from which he or she can write new functions that are compatible with and expand the capabilities of the current MatSeis software that has been developed as part of the Ground-based Nuclear Explosion Monitoring Research and Engineering (GNEMRE) program at Sandia National Laboratories.

McConnell, Lane Christopher; Young, Christopher John

2007-05-01

23

XPS analysis of the SEI formed on carbonaceous materials  

Microsoft Academic Search

Two carbonaceous materials were produced by chemical vapour deposition of ethylene and by pyrolysis of dehydrated sucrose. Electrochemical cells assembled from these materials and metallic lithium were cycled between 0.00 and 2.00 V vs. Li\\/Li+ in ethylene carbonate\\/diethylcarbonate electrolytes containing LiPF6 or LiAsF6. The solid electrolyte interphase (SEI) formed on the carbons was characterised by X-ray photoelectron spectroscopy (XPS). We

V. Eshkenazi; E. Peled; L. Burstein; D. Golodnitsky

2004-01-01

24

TOF SIMS characterization of SEI layer on battery electrodes  

NASA Astrophysics Data System (ADS)

In the last decade, many studies applied surface analysis techniques (SEM, XPS and SIMS) to understand the formation of SEI layers on Li-ion battery electrodes. This work was meant as a comparative model study of the SEI layer formation, which combined in situ SEM imaging with TOF SIMS depth profiling of four samples of the same graphite electrode material, which was subjected to different charge-discharge cycling schemes in a Li-ion battery. Besides comparing compositions of sub-surface regions of these differently processed electrodes, we wanted to know whether these compositions depend on after-cycling sample preparation, in particular if a brief exposure of these samples to air would affect the compositions measured by TOF SIMS. We found that the exposure to air (1) increases secondary ion yield for all species, and (2) changes shapes of SIMS depth profiles for some key species. For selected samples, we also conducted a comparison between the conventional single beam TOF-SIMS depth profiling and a high resolution dual beam depth profiling and found that the former approach can detect the same features in depth profiles as the latter one. We interpreted this as an indication that the sample surface morphology (high roughness) could be a limiting factor in this SEI study, suggesting that specially designed model samples with smooth surfaces are a better choice for future studies.

Veryovkin, I. V.; Tripa, C. E.; Zinovev, A. V.; Baryshev, S. V.; Li, Y.; Abraham, D. P.

2014-08-01

25

77 FR 5491 - Endangered and Threatened Species; Initiation of 5-Year Review for Sei Whales  

Federal Register 2010, 2011, 2012, 2013

...Initiation of 5-Year Review for Sei Whales AGENCY: National Marine Fisheries Service...NMFS announces a 5-year review of sei whales (Balaenoptera borealis) under the Endangered...submission of any such information on sei whales that has become available since that...

2012-02-03

26

[Chang Sei Kim's activities on public health in colonial Korea].  

PubMed

After graduating from Severance Medical College in 1916, Chang Sei Kim went to Shanghai to work as a missionary in a adventist hospital. The establishment of the Korean Provisional Government led him to participate in the independence movement. Educating nurses to assist the forthcoming war for independence, he seemed to realize the fact that the health of Koreans would be a key factor for achieving independence. He left for the U.S. to conduct comprehensive research on medicine. Chang Sei Kim was the first Korean to receive a Ph. D. degree of Public Health, graduating from the Johns Hopkins School of Hygiene and Public Health in 1925. He then gained an opportunity to work for Korea as a professor at Severance Medical College. His objective was the 'Reconstruction of the Korean People In Terms of Physical Constitution.' He pointed out that Koreans' weak state of health was a major reason for Korea's colonization. To gain independence, he emphasized that the Korean people should receive education on public health in order to improve the primitive conditions of sanitation. There is little doubt that Chang Sei Kim's ideas developed Heungsadan's views on medicine in terms of its stress on cultivation of ability, especially considering the fact that he was a member of the organization. As a member of the colonized who could not participate in the developing official policy, Chang Sei Kim was not able to implement his ideas fully, because an individual or a private organization could not carry out policy on public health as large a scale as the government did. Never giving up his hopes for Korean independence, he rejected requests to assume official posts in the Government-General. That was why he was particularly interested in the Self-Governing Movement in 1920s Korea. If the movement had attained its goal, he might have worked for the enhancement of sanitary environment as a director of Sanitary Department. His application for funding to establish a hygiene laboratory in Korea was rejected by Rockefeller Foundation, as the policy of foundation was to finance only government institutes, not private ones. Resigning his position at Severance Medical College in 1927. Chang Sei Kim went to Shanghai to work as a Field Director in the Council on Health Education. The council was affiliated with the Rockefeller Foundation and was founded to ameliorate the hygienic situation in China. He was well fitted to the job, because China, like Korea, shared the aim to achieve independence by promoting better health for its people and because he could be appointed as a public officer which could not happen in colonial Korea. To solve the ever-serious problems with tuberculosis in China, he went again to the U. S. to conduct research and raise money for the establishment of a sanitarium. Chang Sei Kim passed away there in 1934 at the age of 42. PMID:17575705

Park, Yunjae

2006-12-01

27

SeisSol A Software for Seismic Wave Propagation Simulations  

Microsoft Academic Search

\\u000a We present important extensions of the software SeisSol based on the arbitrary high-order Discontinuous Galerkin (DG) Finite-Element\\u000a method to model seismic wave propagation using non-conforming hybrid meshes for model discretization and to account for highly\\u000a heterogeneous material. In these new approaches we include a point-wise integration of numerical fluxes across element interfaces\\u000a for the non-conforming boundaries preserving numerical accuracy while

Martin Kser; Cristobal Castro; Verena Hermann; Christian Pelties

28

The VBB SEIS experiment of InSight  

NASA Astrophysics Data System (ADS)

SEIS is the core payload of InSight, one of the three missions selected for competitive phase A in the frame of the 2010 Discovery AO. It aims at providing unique observation of the interior structure of Mars and to monitor seismic activity of Mars. SEIS will provide the first seismic model from another planet than Earth. SEIS is an hybrid seismometer composed of 3 SPs and 3 VBBs axes providing ground motion measurement from Dc to 50Hz. A leveling system will ensure the coupling between the ground and the sensors as well as the horizontality of the VBB sphere. This assembly will be deployed on the ground of Mars and will be shielded by a strong thermal insulation and a wind shield. The 24 bits low noise acquisition electronics will remain in the warm electronic box of the lander with the sensors feedback and leveling system electronics. The VBB sphere enclosed three single axis sensors. Those sensors are based on an inverted leaf spring pendulum, which convert ground acceleration into mobile mass displacement. A capacitive displacement sensor monitors this mass displacement to provide a measurement. A force feedback allows transfer function and sensitivity tuning. The VBB sensor has a very strong heritage from previous project and benefits from recent work to improve its performances. Both the mechanical design and the displacement sensors have optimized to improve performances while reducing technological risk and keeping a high TRL. From those development a self-noise well below 10 ^{-9} m.s ^{-2}/sqrt Hz is expected. Environmental sensitivity of SEIS has been minimized by the design of a very efficient wind and thermal shield. Remaining noise is expected to be very close to the VBB self-noise. Associated sources and budget will be discussed. If InSight is selected to fly in 2016, this experiment will provide very high quality seismic signal measurement with a wider bandwidth, higher sensitivity and lower noise than previous Mars seismometer (Viking and Optimism/Mars 96).

De Raucourt, Sebastien; Gabsi, Taoufik; Tanguy, Nebut; Mimoun, David; Lognonne, Philippe; Gagnepain-Beyneix, Jeannine; Banerdt, William; Tillier, Sylvain; Hurst, Kenneth

2012-07-01

29

SeisVolE Teaching Modules Preliminary, Draft Instructions  

NSDL National Science Digital Library

This is an outline of an earthquakes unit using Seismic/Eruption (called SeisVolE on this webpage). Parts of the unit involve graphing using Excel, and all lessons use the Siesmic/Eruption program (which is available for free download). These lessons cover: making a map using Seismic/Eruption, adding relief to the map, taking a cross-section of the map, importing earthquake data from the USGS PDE catalog, creating Frequency-Magnitude plots, and instructions for making graphs using Excel(histograms, scatter plots, and bar graphs).

Braile, Lawrence

30

Development of technology needs for the SEI TNIM network  

NASA Technical Reports Server (NTRS)

A comparison of the salient features of the SEI with previous space exploration programs shows the need for a telecommunications, navigation and information management (TNIM) system level reoptimization. An approach is developed that takes the various candidate mission plans and decomposes them into architectural building blocks, many of which are common to several of the plans. Once identified, each of these blocks can then be parametrically examined with respect to performance benefit, cost, technology, and schedule risk tradeoffs. As the Space Exploration Initiative plan is established, these TNIM building blocks may be fused into an optimized system architecture.

Wachs, M. R.; Zuzek, J. E.

1991-01-01

31

Development of technology needs for the SEI TNIM network  

NASA Astrophysics Data System (ADS)

A comparison of the salient features of the SEI with previous space exploration programs shows the need for a telecommunications, navigation and information management (TNIM) system level reoptimization. An approach is developed that takes the various candidate mission plans and decomposes them into architectural building blocks, many of which are common to several of the plans. Once identified, each of these blocks can then be parametrically examined with respect to performance benefit, cost, technology, and schedule risk tradeoffs. As the Space Exploration Initiative plan is established, these TNIM building blocks may be fused into an optimized system architecture.

Wachs, M. R.; Zuzek, J. E.

1991-09-01

32

Small Molecule-facilitated Degradation of ANO1 Protein  

PubMed Central

ANO1, a calcium-activated chloride channel, is highly expressed and amplified in human cancers and is a critical survival factor in these cancers. The ANO1 inhibitor CaCCinh-A01 decreases proliferation of ANO1-amplified cell lines; however, the mechanism of action remains elusive. We explored the mechanism behind the inhibitory effect of CaCCinh-A01 on cell proliferation using a combined experimental and in silico approach. We show that inhibition of ANO1 function is not sufficient to diminish proliferation of ANO1-dependent cancer cells. We report that CaCCinh-A01 reduces ANO1 protein levels by facilitating endoplasmic reticulum-associated, proteasomal turnover of ANO1. Washout of CaCCinh-A01 rescued ANO1 protein levels and resumed cell proliferation. Proliferation of newly derived CaCCinh-A01-resistant cell pools was not affected by CaCCinh-A01 as compared with the parental cells. Consistently, CaCCinh-A01 failed to reduce ANO1 protein levels in these cells, whereas ANO1 currents were still inhibited by CaCCinh-A01, indicating that CaCCinh-A01 inhibits cell proliferation by reducing ANO1 protein levels. Furthermore, we employed in silico methods to elucidate novel biological functions of ANO1 inhibitors. Specifically, we derived a pharmacophore model to describe inhibitors capable of promoting ANO1 degradation and report new inhibitors of ANO1-dependent cell proliferation. In summary, our data demonstrate that inhibition of the channel activity of ANO1 is not sufficient to inhibit ANO1-dependent cell proliferation, indicating that the role of ANO1 in cancer only partially depends on its function as a channel. Our results provide an impetus for gaining a deeper understanding of ANO1 modulation in cells and introduce a new targeting approach for antitumor therapy in ANO1-amplified cancers.

Bill, Anke; Hall, Michelle Lynn; Borawski, Jason; Hodgson, Catherine; Jenkins, Jeremy; Piechon, Philippe; Popa, Oana; Rothwell, Christopher; Tranter, Pamela; Tria, Scott; Wagner, Trixie; Whitehead, Lewis; Gaither, L. Alex

2014-01-01

33

NTP system definition and comparison process for SEI  

NASA Astrophysics Data System (ADS)

The concept definition, trade-offs, and ultimate selection of a nuclear thermal propulsion (NTP) system that will enable the Space Exploration Initiative (SEI) missions to Mars will require a rigorous systems engineering approach. A systems engineering process to provide a consistent comparison has been established to allow for evolving SEI mission requirements, level of concept definition and changing ``customer'' requirements, while continuing to improve the process as more data becomes available. All concepts will be evaluated against an established baseline NTP system to compare system benefits and merits. Establishing the evaluation criteria is extremely challenging and critical to the evaluation and selection process. Quality function deployment (QFD) will be utilized to provide structure and focus in obtaining the critical needs and attributes of the NTP system. System performance, cost, and risk analysis tools will be integrated into the process to provide the quantitative data required to allow for an informative decision on concept and technology decisions. This process will initiate the framework for design and development of a robust, reliable, cost effective NTP engine within NASA's philosophy for space systems to be developed ``faster, better, and cheaper.''

Corban, Robert R.

1993-01-01

34

Communications system evolutionary scenarios for Martian SEI support  

NASA Technical Reports Server (NTRS)

In the Space Exploration Initiative (SEI) mission scenarios, expanding human presence is the primary driver for high data rate Mars-Earth communications. To support an expanding human presence, the data rate requirement will be gradual, following the phased implementation over time of the evolving SEI mission. Similarly, the growth and evolution of the space communications infrastructure to serve this requirement will also be gradual to efficiently exploit the useful life of the installed communications infrastructure and to ensure backward compatibility with long-term users. In work conducted over the past year, a number of alternatives for supporting high data rate Mars-Earth communications have been analyzed with respect to their compatibility with gradual evolution of the space communications infrastructure. The alternatives include RF, millimeter wave (MMW), and optical implementations, and incorporate both surface and space-based relay terminals in the Mars and Earth regions. Each alternative is evaluated with respect to its ability to efficiently meet a projected growth in data rate over time, its technology readiness, and its capability to satisfy the key conditions and constraints imposed by evolutionary transition. As a result of this analysis, a set of attractive alternative communications architectures have been identified and described, and a road map is developed that illustrates the most rational and beneficial evolutionary paths for the communications infrastructure.

Kwong, Paulman W.; Bruno, Ronald C.

1992-01-01

35

Early Track NEP system options for SEI missions  

NASA Astrophysics Data System (ADS)

A development option for nuclear electric propulsion, the 'Early Track' option, is considered from system and mission application viewpoints. The intent of this development option is to address demanding missions of the future, such as robotic outer planet exploration or the Space Exploration Initiative. The 'Early Track' scheme utilizes existing technologies, such as the SP-100 space reactor and radiator components, as well as subsystems scalable from existing programs, such as 50 to 100 kWe ion thrusters. Up to 1.5 MWe of powder can be generated by the existing 2.4 MWt SP-100 reactor through the use of dynamic Rankine or Brayton power conversion. The performance characteristics of these systems are projected, and assessed for SEI missions currently under consideration.

Gilland, J. H.; George, J. A.

1992-07-01

36

Early Track NEP system options for SEI missions  

NASA Technical Reports Server (NTRS)

A development option for nuclear electric propulsion, the 'Early Track' option, is considered from system and mission application viewpoints. The intent of this development option is to address demanding missions of the future, such as robotic outer planet exploration or the Space Exploration Initiative. The 'Early Track' scheme utilizes existing technologies, such as the SP-100 space reactor and radiator components, as well as subsystems scalable from existing programs, such as 50 to 100 kWe ion thrusters. Up to 1.5 MWe of powder can be generated by the existing 2.4 MWt SP-100 reactor through the use of dynamic Rankine or Brayton power conversion. The performance characteristics of these systems are projected, and assessed for SEI missions currently under consideration.

Gilland, J. H.; George, J. A.

1992-01-01

37

SEI Film Formation On Graphite Anode Surfaces In Lithium Ion Battery  

Microsoft Academic Search

In Situ Electrochemical Atomic Force Microscope (AFM) was used to study Solid Electrolyte Interphase (SEI) film formation on the graphite anode surfaces in lithium ion battery. SEI film formation was clearly observed on the surface of KS-44 synthetic graphite composite electrode in 1M LiClO4 Ethyl-ene carbonate (EC) -based electrolyte under galvanostatic discharge. Together with quantitative analytical results of SEI films

Shoji Yamaguchi; Hitoshi Asahina; Karen A. Hirasawa; Tomohiro Sato; Shoichiro Mori

1998-01-01

38

Ground test facility for SEI nuclear rocket engines  

SciTech Connect

Nuclear Thermal Propulsion (NTP) has been identified as a critical technology in support of the NASA Space Exploration Initiative (SEI). In order to safely develop a reliable, reusable, long-lived flight engine, facilities are required that will support ground tests to qualify the nuclear rocket engine design. Initial nuclear fuel element testing will need to be performed in a facility that supports a realistic thermal and neutronic environment in which the fuel elements will operate at a fraction of the power of a flight weight reactor/engine. Ground testing of nuclear rocket engines is not new. New restrictions mandated by the National Environmental Protection Act of 1970, however, now require major changes to be made in the manner in which reactor engines are now tested. These new restrictions now preclude the types of nuclear rocket engine tests that were performed in the past from being done today. A major attribute of a safely operating ground test facility is its ability to prevent fission products from being released in appreciable amounts to the environment. Details of the intricacies and complications involved with the design of a fuel element ground test facility are presented in this report with a strong emphasis on safety and economy.

Harmon, C.D.; Ottinger, C.A.; Sanchez, L.C.; Shipers, L.R.

1992-08-01

39

THE RAMAN STUDY OF SEI FILM OF ANODE MATERIAL IN LITHIUM ION BATTERIES  

Microsoft Academic Search

Surface Enhanced Raman Scattering (SERS) was employed to study the Solid Electrolyte Interface (SEI) film in lithium ion batteries in this work. Silver island film was deposited on the surface of Hard Carbon Spherule (HCS) and this resulted in SERS effect and the SEI film discharged to different voltages was analyzed and its Raman spectra were assigned. The breakthrough of

Hua Dong; Zhaoxiang Wang; Ying Bai; Yujun Mo; Xuejie Huang

40

Mineralogical aspects of Morro de Seis Lagos deposit (Amazonas, Brazil).  

NASA Astrophysics Data System (ADS)

The alkaline body Morro dos Seis Lagos, situated in the northwest Amazonian region, is a Nb bearing deposit formed by thick lateritic regolith as circular geological feature about 5 km in diameter. The host rock of this deposit is an intensely weathered siderite carbonatite. The alkaline intrusion body was formed during the late Mesozoic and enriched during the Cenozoic by process of denudation of the surrounding rocks and formation of lateritic cover with thickness in the order of hundreds of meters. In this process, enrichment of Nb, Fe, Ti, Mn, P and rare earth elements (REE) occurred where the lateritic regolith represents the major Nb mineralization, with estimated inferred reserves of 2.9 billion ton@ 2.8 % Nb2O5, one of the largest deposits of Nb in the world. The mineralogical composition of the lateritic regolith has the predominance of the goethite and hematite, followed by oxy - hydroxides of Mn, Ti - Nb oxides, pyrochlore, cerianite and phosphates. The lateritic regolith samples showed high contents of Fe2O3 < 89.0%, TiO2 (< 12.54 %) and MnO2 (< 9.90 %). The goethite minerals show several generations that are related to different environmental conditions with dissolution and precipitation process, which indicate intense movement of the solutions with Fe in the aqueous medium. The main Nb minerals are ilmenorutile, rutile and brookite where the ilmenorutile can have content up to 20 % Nb2O5. The P-rich minerals, like monazite and its alteration products, is the main REE phases. These minerals have high concentration of Ce2O3, La2O3 and Nb2O3, where ?REE > 40 %, and is followed by elevated Th concentration, which locally has concentration higher than (18%). Another REE mineral is the cerianite. The main manganese minerals are hollandite, romanechite (BaMn9O16[OH4] - mixtures of manganese oxides) and amorphous Mn oxy - hydroxides. The higher concentration of MnO2 (about 40 %) is restricted to manganesiferous range, where manganese minerals occur as layers and filling voids, indicating strong remobilization by later process.

Takehara, Lucy; Almeida, Marcelo; Silveira, Francisco

2014-05-01

41

Improvement in irritable bowel syndrome following ano-rectal surgery  

Microsoft Academic Search

Background and aims: To assess the effect on irritable bowel syndrome (IBS) of treating ano-rectal problems by applying multiple Barron's bands to prolapsing mucosa and excising haemorrhoids, with or without a low lateral sphincterotomy. Patients and methods: 144 patients with IBS whose ano-rectal abnormalities were treated by a single consultant surgeon. A prospective 'within person' study of consecutive patients referred

Bernard V. Palmer; John W. Lockley; Robert B. Palmer; Elena Kulinskaya

2002-01-01

42

ESTUDO GEOAMBIENTAL DO CURSO MDIO DA BACIA HIDROGRFICA DO RIO VERDE - CAMPO LARGO\\/PR  

Microsoft Academic Search

Resumo: A preocupao com questes ambientais tem crescido nos ltimos anos motivada, principalmente, pela busca da sociedade por conhecimentos que apontem amenizao e solues de problemas tanto em reas urbanas como rurais. Diante desta preocupao e utilizando como base terico-metodolgica a Geomorfologia Ambiental, este trabalho apresenta um estudo geoambiental do curso mdio da bacia hidrogrfica do rio Verde, localizado no

Maristela Moresco Mezzomo; Andreia Quinto Soares

43

75 FR 39916 - Endangered and Threatened Species; Notice of Intent to Prepare a Recovery Plan for the Sei Whale  

Federal Register 2010, 2011, 2012, 2013

...to Prepare a Recovery Plan for the Sei Whale AGENCY: National Marine Fisheries Service...to prepare a recovery plan for the Sei Whale (Balaenoptera borealis) and requests...Please identify the fax comments as ``Sei Whale Recovery Plan Information'' 3....

2010-07-13

44

75 FR 65005 - Intent To Prepare a Draft Supplemental Environmental Impact Statement (SEIS), Mississippi Barrier...  

Federal Register 2010, 2011, 2012, 2013

...SEIS), Mississippi Barrier Island Restoration, Mississippi Coastal Improvements Program...impacts associated with the comprehensive restoration of the Mississippi barrier islands...prevention of erosion, barrier island restoration, and other related water...

2010-10-21

45

Space exploration initiative (SEI) logistics support lessons from the DoD  

NASA Astrophysics Data System (ADS)

Proven and innovative logistics management approaches and techniques used for developing and supporting DoD and Strategic Defense Initiative Office (SDIO) systems are described on the basis of input from DoD to the SEI Synthesis Group; SDIO-developed logistics initiatives, innovative tools, and methodologies; and logistics planning support provided to the NASA/Johnson Planet Surface System Office. The approach is tailored for lunar/Martian surface operations, and provides guidelines for the development and management of a crucial element of the SEI logistics support program. A case study is presented which shows how incorporation of DoD's proven and innovative logistics management approach, tools, and techniques can substantially benefit early logistics planning for SEI, while also implementing many of DoD's recommendations for SEI.

Cox, John R.; McCoy, Walbert G.; Jenkins, Terence

46

Pattern of enterotoxin genes seg, seh, sei and sej positive Staphylococcus aureus isolated from bovine mastitis  

Microsoft Academic Search

PCR detection of the genes encoding the newly described staphylococcal enterotoxins (SE) SEG, SEH, SEI and SEJ was carried out for 104 randomly selected Staphylococcus aureus field strains isolated from cases of bovine mastitis. Sixty-one (58.7%) isolates were positive for one or more of these novel enterotoxin genes. Thirty-six field strains were classified as carrier of seg, 22 of sei

M. Zschck; Brbel Kloppert; W. Wolter; H. P. Hamann; Ch. Lmmler

2005-01-01

47

Theoretical study of bond distances and dissociation energies of actinide oxides AnO and AnO2.  

PubMed

In the present study we evaluated trends in the bond distances and dissociation enthalpies of actinide oxides AnO and AnO(2) (An = Th-Lr) on the basis of consistent computed data obtained by using density functional theory in conjunction with relativistic small-core pseudopotentials. Computations were carried out on AnO (An = Th-Lr) and AnO(2) (An = Np, Pu, Bk-Lr) species, while for the remaining AnO(2) species recent literature data (Theor. Chem. Acc. 2011, 129, 657) were utilized. The most important computed properties include the geometries, vibrational frequencies, dissociation enthalpies, and several excited electronic states. These molecular properties of the late actinide oxides (An = Bk-No) are reported here for the first time. We present detailed analyses of the bond distances, covalent bonding properties, and dissociation enthalpies. PMID:22471700

Kovcs, Attila; Pogny, Peter; Konings, Rudy J M

2012-04-16

48

Silicon Nanowire Degradation and Stabilization during Lithium Cycling by SEI Layer Formation.  

PubMed

Silicon anodes are of great interest for advanced lithium-ion battery applications due to their order of magnitude higher energy capacity than graphite. Below a critical diameter, silicon nanowires enable the ?300% volume expansion during lithiation without pulverization. However, their high surface-to-volume ratio is believed to contribute to fading of their capacity retention during cycling due to solid-electrolyte-interphase (SEI) growth on surfaces. To better understand this issue, previous studies have examined the composition and morphology of the SEI layers. Here we report direct measurements of the reduction in silicon nanowire diameter with number of cycles due to SEI formation. The results reveal significantly greater Si loss near the nanowire base. From the change in silicon volume we can accurately predict the measured specific capacity reduction for silicon nanowire half cells. The enhanced Si loss near the nanowire/metal current collector interface suggests new strategies for stabilizing nanowires for long cycle life performance. PMID:24773368

Cho, Jeong-Hyun; Picraux, S Tom

2014-06-11

49

Controlling SEI Formation on SnSb-Porous Carbon Nanofibers for Improved Na Ion Storage.  

PubMed

Porous carbon nanofiber (CNF)-supported tin-antimony (SnSb) alloys are synthesized and applied as a sodium-ion battery anode. The chemistry and morphology of the solid electrolyte interphase (SEI) film and its correlation with the electrode performance are studied. The addition of fluoroethylene carbonate (FEC) in the electrolyte significantly reduces electrolyte decomposition and creates a very thin and uniform SEI layer on the cycled electrode surface, which an promote the kinetics of Na-ion migration/transportation, leading to excellent electrochemical performance. PMID:24677091

Ji, Liwen; Gu, Meng; Shao, Yuyan; Li, Xiaolin; Engelhard, Mark H; Arey, Bruce W; Wang, Wei; Nie, Zimin; Xiao, Jie; Wang, Chongmin; Zhang, Ji-Guang; Liu, Jun

2014-05-01

50

Characterization of SEI layers on LiMn2O4 cathodes with in-situ spectroscopic ellipsometry  

SciTech Connect

In situ spectroscopic ellipsometry was employed to study the initial stage of SEI layer formation on thin-film LiMn{sub 2}O{sub 4} electrodes. It was found that the SEI layer formed immediately upon exposure of the electrode to EC/DMC (1:1 by vol) 1.0 M LiPF{sub 6} electrolyte. The SEI layer thickness then increased in proportion to a logarithmic function of elapsed time. In comparison, the SEI layer thickness on a cycled electrode increased in proportion to a linear function of the number of cycles.

Lei, Jinglei; Li, Lingjie; Kostecki, Robert; Muller, Rolf; McLarnon, Frank

2004-08-30

51

Fermentao da protena de seis alimentos por microrganismos ruminais, incubados puros ou com monensina ou rumensin  

Microsoft Academic Search

RESUMO - Avaliaram-se os efeitos da fermentao in vitro de seis alimentos: fub de milho (FM), farelo de soja (FS), farelo de trigo (FT), sorgo (SO), glten de milho (GM) e uria (UR), incubados puros ou com o antibitico monensina, esse na forma pur a para anlise (Monensina) ou comercial (Rumensin). O experimento constituiu-se de 18 unidades experimentais (trs alimentos

Natlia Guarino Souza Barbosa; Rogrio de Paula Lana; Antnio Bento Mncio; Arnaldo Chaer Borges; Cesar de Queiroz; Juliana Silva Oliveira

2001-01-01

52

How many records should be used in ASCE/SEI-7 ground motion scaling procedure?  

USGS Publications Warehouse

U.S. national building codes refer to the ASCE/SEI-7 provisions for selecting and scaling ground motions for use in nonlinear response history analysis of structures. Because the limiting values for the number of records in the ASCE/SEI-7 are based on engineering experience, this study examines the required number of records statistically, such that the scaled records provide accurate, efficient, and consistent estimates of true structural responses. Based on elasticperfectly plastic and bilinear single-degree-of-freedom systems, the ASCE/SEI-7 scaling procedure is applied to 480 sets of ground motions; the number of records in these sets varies from three to ten. As compared to benchmark responses, it is demonstrated that the ASCE/SEI-7 scaling procedure is conservative if fewer than seven ground motions are employed. Utilizing seven or more randomly selected records provides more accurate estimate of the responses. Selecting records based on their spectral shape and design spectral acceleration increases the accuracy and efficiency of the procedure.

Reyes, Juan C.; Kalkan, Erol

2012-01-01

53

NSPWG-recommended safety requirements and guidelines for SEI nuclear propulsion  

Microsoft Academic Search

An interagency Nuclear Safety Policy Working Group (NSPWG) was chartered to recommend nuclear safety policy, requirements, and guidelines for the Space Exploration Initiative (SEI) nuclear propulsion program to facilitate the implementation of mission planning and conceptual design studies. The NSPWG developed a top-level policy to provide the guiding principles for the development and implementation of the nuclear propulsion safety program

Albert C. Marshall; J. C. Sawyer Jr.; Robert A. Bari; Neil W. Brown; Hatice S. Cullingford; Alva C. Hardy; James H. Lee; William H. McCulloch; George F. Niederauer; Kerry Remp; J. W. Rice; J. A. Sholtis

1992-01-01

54

Solid state NMR study of SEI formation in lithium ion batteries  

Microsoft Academic Search

Recently, rechargeable lithium ion batteries, which offer high energy density and long cycle life, are in great demand as power sources for our mobile electronic society. The formation of a solid electrolyte interphase (SEI) on the surface of electrodes in lithium ion batteries plays an essential role in their performance. This thesis presents solid state NMR and MAS NMR results

Dachun Zhao

2004-01-01

55

Required number of records for ASCE/SEI 7 ground-motion scaling procedure  

USGS Publications Warehouse

The procedures and criteria in 2006 IBC (International Council of Building Officials, 2006) and 2007 CBC (International Council of Building Officials, 2007) for the selection and scaling ground-motions for use in nonlinear response history analysis (RHA) of structures are based on ASCE/SEI 7 provisions (ASCE, 2005, 2010). According to ASCE/SEI 7, earthquake records should be selected from events of magnitudes, fault distance, and source mechanisms that comply with the maximum considered earthquake, and then scaled so that the average value of the 5-percent-damped response spectra for the set of scaled records is not less than the design response spectrum over the period range from 0.2Tn to 1.5Tn sec (where Tn is the fundamental vibration period of the structure). If at least seven ground-motions are analyzed, the design values of engineering demand parameters (EDPs) are taken as the average of the EDPs determined from the analyses. If fewer than seven ground-motions are analyzed, the design values of EDPs are taken as the maximum values of the EDPs. ASCE/SEI 7 requires a minimum of three ground-motions. These limits on the number of records in the ASCE/SEI 7 procedure are based on engineering experience, rather than on a comprehensive evaluation. This study statistically examines the required number of records for the ASCE/SEI 7 procedure, such that the scaled records provide accurate, efficient, and consistent estimates of" true" structural responses. Based on elastic-perfectly-plastic and bilinear single-degree-of-freedom systems, the ASCE/SEI 7 scaling procedure is applied to 480 sets of ground-motions. The number of records in these sets varies from three to ten. The records in each set were selected either (i) randomly, (ii) considering their spectral shapes, or (iii) considering their spectral shapes and design spectral-acceleration value, A(Tn). As compared to benchmark (that is, "true") responses from unscaled records using a larger catalog of ground-motions, it is demonstrated that the ASCE/SEI 7 scaling procedure is overly conservative if fewer than seven ground-motions are employed. Utilizing seven or more randomly selected records provides a more accurate estimate of the EDPs accompanied by reduced record-to-record variability of the responses. Consistency in accuracy and efficiency is achieved only if records are selected on the basis of their spectral shape and A(Tn).

Reyes, Juan C.; Kalkan, Erol

2011-01-01

56

Magnetic resonance imaging of fistula-in-ano  

Microsoft Academic Search

PURPOSE: Successful management of anal fistulas depends upon accurate assessment of the primary tract and any secondary extensions. Preoperative imaging has, to date, been disappointing. METHODS: A prospective study of 35 patients with a clinical diagnosis of fistula-in-ano was performed comparing magnetic resonance imaging with the independently documented operative findings. Magnetic resonance imaging was also compared with anal endosonography in

Peter J. Lunniss; Peter G. Barker; Abdul H. Sultan; Peter Armstrong; Rodney H. Reznek; Clive I. Bartram; Karen S. Cottam; Robin K. Phillips

1994-01-01

57

Padro de actividade fsica. Estudo em crianas de ambos os sexos do 4. ano de escolaridade  

Microsoft Academic Search

Physical activity patterns. A study in primary school children of both gender. The present study is aimed to perceive the different standards of physi- cal activity in leisure time and the pattern of physical activity (regar- ding its manner, intensity, duration and frequency) of children within school context. A group of 120 children of both sexes, around the age of

Lusa Magalhes; Jos Mai; Rui Silva; Andr Seabra

58

On the use of Space Station Freedom in support of the SEI - Life science research  

NASA Technical Reports Server (NTRS)

The use of the Space Station Freedom (SSF) for life sciences research is evaluated from the standpoint of requirements for the Space Exploration Initiative (SEI). SEI life sciences research encompasses: (1) biological growth and development in space; (2) life support and environmental health; (3) physiological/psychological factors of extended space travel; and (4) space environmental factors. The platforms required to support useful study in these areas are listed and include ground-based facilities, permanently manned spacecraft, and the Space Shuttle. The SSF is shown to be particularly applicable to the areas of research because its facilities can permit the study of gravitational biology, life-support systems, and crew health. The SSF can serve as an experimental vehicle to derive the required knowledge needed to establish a commitment to manned Mars missions and colonization plans.

Leath, K.; Volosin, J.; Cookson, S.

1992-01-01

59

ANO1: an additional key player in cyst growth.  

PubMed

Chloride secretion driven by calcium-dependent chloride channels has a major impact on cyst enlargement in polycystic kidney disease. Buchholz et al. studied the functional role of anoctamin 1 (ANO1), a recently identified calcium-activated chloride channel, in kidney cyst growth, using principal-like cells forming cysts within a collagen matrix and an embryonic kidney cyst model. Their results support a potential role for this chloride channel in cyst generation. PMID:24786872

Tanaka, Tetsuhiro; Nangaku, Masaomi

2014-05-01

60

Subcutaneous lateral internal sphincterotomy for chronic fissure-in-ano  

Microsoft Academic Search

The results of subcutaneous lateral internal sphincterotomy for chronic fissure-in-ano were analyzed in a series of 60 patients\\u000a operated upon over a period of two years. Immediate relief from pain with painless first bowel movement was accomplished in\\u000a 97 per cent of the patients with very low morbidity rates. All patients were treated on an outpatient basis and had a

T. S. Ravikumar; Samanthi Sridhar; R. Nanjunda Rao

1982-01-01

61

SeisCode: A seismological software repository for discovery and collaboration  

NASA Astrophysics Data System (ADS)

SeisCode is a community repository for software used in seismological and related fields. The repository is intended to increase discoverability of such software and to provide a long-term home for software projects. Other places exist where seismological software may be found, but none meet the requirements necessary for an always current, easy to search, well documented, and citable resource for projects. Organizations such as IRIS, ORFEUS, and the USGS have websites with lists of available or contributed seismological software. Since the authors themselves do often not maintain these lists, the documentation often consists of a sentence or paragraph, and the available software may be outdated. Repositories such as GoogleCode and SourceForge, which are directly maintained by the authors, provide version control and issue tracking but do not provide a unified way of locating geophysical software scattered in and among countless unrelated projects. Additionally, projects are hosted at language-specific sites such as Mathworks and PyPI, in FTP directories, and in websites strewn across the Web. Search engines are only partially effective discovery tools, as the desired software is often hidden deep within the results. SeisCode provides software authors a place to present their software, codes, scripts, tutorials, and examples to the seismological community. Authors can choose their own level of involvement. At one end of the spectrum, the author might simply create a web page that points to an existing site. At the other extreme, an author may choose to leverage the many tools provided by SeisCode, such as a source code management tool with integrated issue tracking, forums, news feeds, downloads, wikis, and more. For software development projects with multiple authors, SeisCode can also be used as a central site for collaboration. SeisCode provides the community with an easy way to discover software, while providing authors a way to build a community around their software packages. IRIS invites the seismological community to browse and to submit projects to https://seiscode.iris.washington.edu/

Trabant, C.; Reyes, C. G.; Clark, A.; Karstens, R.

2012-12-01

62

MatSeis and the GNEM R&E regional seismic anaylsis tools.  

SciTech Connect

To improve the nuclear event monitoring capability of the U.S., the NNSA Ground-based Nuclear Explosion Monitoring Research & Engineering (GNEM R&E) program has been developing a collection of products known as the Knowledge Base (KB). Though much of the focus for the KB has been on the development of calibration data, we have also developed numerous software tools for various purposes. The Matlab-based MatSeis package and the associated suite of regional seismic analysis tools were developed to aid in the testing and evaluation of some Knowledge Base products for which existing applications were either not available or ill-suited. This presentation will provide brief overviews of MatSeis and each of the tools, emphasizing features added in the last year. MatSeis was begun in 1996 and is now a fairly mature product. It is a highly flexible seismic analysis package that provides interfaces to read data from either flatfiles or an Oracle database. All of the standard seismic analysis tasks are supported (e.g. filtering, 3 component rotation, phase picking, event location, magnitude calculation), as well as a variety of array processing algorithms (beaming, FK, coherency analysis, vespagrams). The simplicity of Matlab coding and the tremendous number of available functions make MatSeis/Matlab an ideal environment for developing new monitoring research tools (see the regional seismic analysis tools below). New MatSeis features include: addition of evid information to events in MatSeis, options to screen picks by author, input and output of origerr information, improved performance in reading flatfiles, improved speed in FK calculations, and significant improvements to Measure Tool (filtering, multiple phase display), Free Plot (filtering, phase display and alignment), Mag Tool (maximum likelihood options), and Infra Tool (improved calculation speed, display of an F statistic stream). Work on the regional seismic analysis tools (CodaMag, EventID, PhaseMatch, and Dendro) began in 1999 and the tools vary in their level of maturity. All rely on MatSeis to provide necessary data (waveforms, arrivals, origins, and travel time curves). CodaMag Tool implements magnitude calculation by scaling to fit the envelope shape of the coda for a selected phase type (Mayeda, 1993; Mayeda and Walter, 1996). New tool features include: calculation of a yield estimate based on the source spectrum, display of a filtered version of the seismogram based on the selected band, and the output of codamag data records for processed events. EventID Tool implements event discrimination using phase ratios of regional arrivals (Hartse et al., 1997; Walter et al., 1999). New features include: bandpass filtering of displayed waveforms, screening of reference events based on SNR, multivariate discriminants, use of libcgi to access correction surfaces, and the output of discrim{_}data records for processed events. PhaseMatch Tool implements match filtering to isolate surface waves (Herrin and Goforth, 1977). New features include: display of the signal's observed dispersion and an option to use a station-based dispersion surface. Dendro Tool implements agglomerative hierarchical clustering using dendrograms to identify similar events based on waveform correlation (Everitt, 1993). New features include: modifications to include arrival information within the tool, and the capability to automatically add/re-pick arrivals based on the picked arrivals for similar events.

Chael, Eric Paul; Hart, Darren M.; Young, Christopher John; Merchant, Bion John

2003-08-01

63

Direct Visualization of Initial SEI Morphology and Growth Kinetics During Lithium Deposition by in situ Electrochemical Transmission Electron Microscopy  

SciTech Connect

Deposition of Li is a major safety concern existing in Li-ion secondary batteries. Here we perform the first in situ high spatial resolution measurement coupled with real-time quantitative electrochemistry to characterize SEI formation on gold using a standard battery electrolyte. We demonstrate that a dendritic SEI forms prior to Li deposition and that it remains on the surface after Li electrodissolution.

Sacci, Robert L.; Dudney, Nancy J.; More, Karren L.; Parent, Lucas R.; Arslan, Ilke; Browning, Nigel D.; Unocic, Raymond R.

2013-12-20

64

Characterization of SEI layer formed on high performance SiCu anode in ionic liquid battery electrolyte  

Microsoft Academic Search

Formation of the SEI layer on SiCu film electrode in the ionic liquid electrolyte of 1M lithium bis(trifluoromethylsulfonyl)imide\\/1-methyl-1-propylpyrrolidinium bis(trifluoromethylsulfonyl)imide (LiTFSI\\/MPP-TFSI) was investigated using ex-situ ATR FTIR and X-ray photoelectron spectroscopy. The SEI layer is found to be composed of organic and inorganic compounds that are the decomposition products of MPP cation and TFSI anion, and effectively passivate the electrode surface

Cao Cuong Nguyen; Seung-Wan Song

2010-01-01

65

Extension to High Frequencies of the Experiment Capability of SEIS-UK  

NASA Astrophysics Data System (ADS)

The seismic equipment facility serving the UK academic community, SEIS-UK, has recently purchased 15 high frequency seismic recording systems capable of sampling at up to 24kHz. A suite of 3 component 30Hz geophones and piezoelectric accelerometers has also been acquired. The SAQS systems, designed and built by ISS International of South Africa, represent a significant extension in the capability of the SEIS-UK facility. The units record 24bit data from 6 channels, at sample rates of 50Hz to 24kHz, in continuous or triggered mode. An external GPS antenna and removable hard disk allow the systems to run autonomously. The 6 channels can be configured as any combination of tri-, bi- or uni-axial systems. The recording systems are also compatible with broadband seismometers. Although originally designed for the purpose of hardrock mine monitoring, the SAQS system is a good solution for a range of high frequency seismic monitoring experiments, especially controlled source or high-resolution surveys. The SEIS-UK systems have been modified with disk-heaters to extend the environmental operating capability. The addition of an external GPS antenna means the units can be used in the same way as any other passive seismic field system. However, the functionality of the recorder is significantly greater than that of many standard seismic systems. The equipment is currently loaned to the British Antarctic Survey for use as part of a large multi-disciplinary experiment on the Rutford Ice Stream in Antarctica. The instruments will be deployed in an array centred on the main sub-glacial access hole. Instruments will detect events from the bed of the glacier with the aim of investigating the ice flow mechanisms and for determining the relationship between the ice sheet, sub-glacial bed and tidal motion.

Brisbourne, A.; Horleston, A.; Denton, P.

2004-12-01

66

SEIS/INSIGHT and Mars seismology: Development status and focus on the Impact detection  

NASA Astrophysics Data System (ADS)

The INSIGHT NASA Discovery mission will deploy in September 2016 a 3 axis Very Broad band seismometer and a 3 axis SP seismometer, as well as other instruments enabling the installation of a complete geophysical observatory recording seismic, heat flow, magnetic and geodetic signals, in addition to atmospheric wind, pressure and temperature. We first present the science goals status of the SEIS experiment and its development status. The SEIS sensor assembly, which contains both the VBB and SP seismometer, will be deployed on the Martian ground by a robotic arm from a Phoenix-type lander platform and protected by a wind and thermal shield. The wind and thermal shield, a vacuum sphere for VBBs and a passive compensation system will achieve a very high protection of the seismometers against temperature and pressure variations, allowing the sensor to operate in the rough Martian thermal environment while reaching a detection threshold below 10^(-9) m/s/s Hz^(-1/2) in the VBB bandwidth and 10^(-8) m/s/s Hz^(-1/2) for the SP. A levelling system will allow the VBB to operate, while providing to both seismometer the best possible mechanical coupling with the ground motion. The SEIS instrument will be provided by CNES, which will coordinate a wide set of international contributors from the Institut de Physique du Globe de Paris, the Imperial College from London and the Open University, the Max-Planck Insitute of Lindau, the cole polytechnique fdrale de Zurich (ETHZ), the Jet Propulsion Laboratory and the Institut de l'Aronautique et de l'Espace from Toulouse. We then illustrate the science goals by a focus on the capability of INSIGHT to detect either seismic or acoustic signals from impacts, with both the seismometers and the pressure sensor, and present both amplitude and occurrence expectation, based on comparative modeling between Mars, Earth and the Moon.

Lognonne, Philippe; Banerdt, William; Pike, Tom; Giardini, Domenico; Christensen, Ulli; Banfield, Don; Mimoun, David; Laudet, Philippe; de Raucourt, Sebastien; Bierwirth, Marco; Zweifel, Peter; Calcutt, Simon; Hurst, Ken; Bruce, Carl

2014-05-01

67

Detailed analysis of the ANO-2 turbine trip test  

SciTech Connect

A RELAP5/MOD1 (Cycle 18) computer code simulation of the ANO-2 turbine trip test from 98% power level was performed for use in vendor code qualification studies. Results focused on potential improvements to simulation capabilities and plant data acquisition systems to provide meaningful comparisons between the calculations and the test data. The turbine trip test was selected because it resulted in an unplanned sequence of events that broadly affected the plant process systems and their controls. The pressurizer spray valve stuck open at an undetermined flow area, and an atmospheric dump valve remained stuck fully open while several atmospheric dump and secondary side safety valves were unavailable throughout. Thus, although the plant remained always in a safe condition, this transient potentially provided an unusual set of data against which the fidelity of a NSSS simulation by RELAP5/MOD1 along with certain vendor analysis codes might be judged.

McDonald, T.A.; Tessier, J.H.; Senda, Y.; Waterman, M.D.

1983-01-01

68

Analysis of the ANO-2 turbine trip test  

SciTech Connect

The start-up tests performed with the Arkansas Nuclear One-Unit Two (ANO-2) plant provided an opportunity for studying the validity of certain integral systems codes. In particular, the turbine trip from 98.2 percent full power test was investigated with the RELAP5/MOD1 (cycle 18) ode. A detailed plant model was developed and used to understand the test reports. The early depressurization portion of the transient was reproduced; however, the resultant repressurization was not well represented due to uncertainty in the data and plant response. As a result of these computations and detailed analyses of the test data considerable insight was drawn as to the best way to perform and gather data from such integral systems tests for use in code verification studies.

McDonald, T.A.; Tessier, J.H.; Senda, Y.; Waterman, M.D.

1983-01-01

69

NSPWG-recommended safety requirements and guidelines for SEI nuclear propulsion  

NASA Technical Reports Server (NTRS)

An interagency Nuclear Safety Policy Working Group (NSPWG) was chartered to recommend nuclear safety policy, requirements, and guidelines for the Space Exploration Initiative (SEI) nuclear propulsion program to facilitate the implementation of mission planning and conceptual design studies. The NSPWG developed a top-level policy to provide the guiding principles for the development and implementation of the nuclear propulsion safety program and the development of safety functional requirements. In addition, the NSPWG reviewed safety issues for nuclear propulsion and recommended top-level safety requirements and guidelines to address these issues. Safety requirements were developed for reactor start-up, inadvertent criticality, radiological release and exposure, disposal, entry, and safeguards. Guidelines were recommended for risk/reliability, operational safety, flight trajectory and mission abort, space debris and meteoroids, and ground test safety. In this paper the specific requirements and guidelines will be discussed.

Marshall, Albert C.; Sawyer, J. C., Jr.; Bari, Robert A.; Brown, Neil W.; Cullingford, Hatice S.; Hardy, Alva C.; Lee, James H.; Mcculloch, William H.; Niederauer, George F.; Remp, Kerry

1992-01-01

70

Effect of electrolytes on the evolution of the solid electrolyte interphase (SEI) in Li-ion batteries: a Molecular Dynamics study  

NASA Astrophysics Data System (ADS)

Controlling and understanding the atomic level reactions at the interface between electrode and electrolyte is a prerequisite for the improvement of the performance of Li-ion batteries. The solid electrolyte interphase (SEI), which forms on the negative electrode of Li-ion batteries, is known to significantly affect the battery performance leading to irreversible charge loss, exfoliation of graphite anode and affecting the safety. In spite of the large body of work on SEI, a quantitative understanding of the mechanisms of SEI formation is currently not available. In this work, we employ molecular dynamics simulations with reactive force fields to investigate the compositional and structural properties of the SEI. Our simulations capture the mechanisms of SEI formation as Li atoms react with different kinds of electrolytes (ethylene carbonate (EC), dimethyl carbonate (DMC), and their mixtures) and are able to quantitatively predict the properties in terms of the SEI thickness, byproducts, charge loss, and rigidity.

Kim, Sang-Pil; Shenoy, Vivek

2011-03-01

71

3D visualization of inhomogeneous multi-layered structure and Young's modulus of the solid electrolyte interphase (SEI) on silicon anodes for lithium ion batteries.  

PubMed

The microstructure and mechanical properties of the solid electrolyte interphase (SEI) in non-aqueous lithium ion batteries are key issues for understanding and optimizing the electrochemical performance of lithium batteries. In this report, the three-dimensional (3D) multi-layered structures and the mechanical properties of the SEI formed on a silicon anode material for next generation lithium ion batteries have been visualized directly for the first time, through a scanning force spectroscopy method. The coverage of the SEI on silicon anodes is also obtained through 2D projection plots. The effects of temperature and the function of additives in the electrolyte on the SEI can be understood accordingly. A modified model about dynamic evolution of the SEI on the silicon anode material is also proposed, which aims to explain why the SEI is very thick and how the multi-layered structure is formed and decomposed dynamically. PMID:24869920

Zheng, Jieyun; Zheng, Hao; Wang, Rui; Ben, Liubin; Lu, Wei; Chen, Liwei; Chen, Liquan; Li, Hong

2014-06-11

72

Distinct regulatory effect of the p34SEI-1 oncoprotein on cancer metastasis in HER2/neu-positive and -negative cells.  

PubMed

The p34SEI-1 oncoprotein is involved in a transcriptional regulation, cell cycle regulation, apoptosis, development and many other important cellular functions. Our present study suggests that p34SEI-1 can promote metastasis by enhancing migration and invasion of cancer cells. Consistently, p34SEI-1 expression was found to be increased as the tumor invasiveness progressed in human breast tissues. p34SEI-1 may promote cancer metastasis by activating the PI3K/AKT signaling pathway. In this process, p34SEI-1 activates two different serine/threonine kinases, AKT or ILK, depending on the expression status of HER2/neu oncogene. In HER2/neu suppressed cancer cells, p34SEI-1 promoted metastasis mainly by activating AKT via phosphorylation of the 473 serine residue. In HER2/neu expressing cancer cells, p34SEI-1 overexpression downregulates HER2/neu expression, leading to the activation of another crucial serine/threonine kinase ILK due to phosphorylation of the 178 threonine residue instead of AKT. These results suggest that p34SEI-1 affects cancer metastasis by regulating two different signaling pathways depending on the HER2/neu expression level, in which AKT and ILK modulation can be stimulated by p34SEI-1 overexpression. PMID:24789658

Jung, Samil; Ohk, Jiyeon; Jeong, Dongjun; Li, Chengping; Lee, Soonduck; Duan, Jingjing; Kim, Changjin; Lim, Jong-Seok; Yang, Young; Kim, Keun-Il; Lee, Myeong-Sok

2014-07-01

73

A Rapid Deployment Seismological network (RaDeSeis) for real time aftershock studies  

NASA Astrophysics Data System (ADS)

The understanding of earthquake faulting process is one of the main factors that contribute to earthquake damage. One of the most valuable and essential tools for the understanding of faulting process in the analysis of aftershocks. The critical point for successful aftershock studies is the mobile seismological network that will deployed in order to provide the required data. The main problem that arise for these networks is how fast the recorded data are available to data centres in order to estimate the focal mechanisms, the source parameters estimation as well as to examine microseismic activity. The ideal situation is to have these data available in real time but this is limited by the different telemetry requirements for every individual installation. Based on the experience gained from several installations in Hellenic Seismological Network of Crete (HSNC) we propose a mobile network scheme (called RaDeSeis) capable of installed in a limited amount of time and provide real time seismological data. RaDeSeis is an hybrid network based on VSAT and WiFi communication links between seismological stations and data centre. The network is deployed in star topology where the central station is the communication hub at the same time. Dedicated point-to-point links between central station and border station established using WiFi links. Communication between central station and data centre is established by VSAT. With appropriate routing on central station the data centre is collecting, control and monitor all the stations from the area of interest in real time. In order to decrease the time needed for each installation a specific software (RaLiEs - Rapid Link Establishment) is originated for the quicker link establishment between border stations and central station (with an average distance of 40km LOS) as well as to data centre. By using this software each telecommunication installation needs less than half an hour to complete the necessary link adjustments. Acknowledgements This work is partially supported by SE-RISK Project (INTERREG III, STRAND B ARCHIMED)/Axis: Integrated and Sustainable Management of Cultural and Natural Resources and of Landscape and Risk Management)

Hloupis, G.; Vallianatos, F.; Makris, J. P.

2009-04-01

74

RapidSeis: Enabling User-Defined Seismological Waveform Data Processing over the Grid  

NASA Astrophysics Data System (ADS)

The objective of this JISC-funded pilot project was to remove perceived barriers to uptake of an application that performs analysis of seismic waveform data. The aim was to provide the seismological community with a simplified system that overcame important barriers such as installation and understanding of the analysis package, location and transfer of large amounts of input data and visualisation of results. The project combined the expertise of three distinct teams. The Orfeus Data Centre provided discovery services and access management to distributed earthquake waveform data and metadata, supported by technologies such as webservices, SPARQL/RDF and a JSR-168 portal framework based on the WSRP portlet architecture. Analysis and visualisation of the waveform data were performed by SDX (Seismic Data eXplorer) developed at the University of Liverpool. SDX formed the core processing engine - this application's functionality can be extended via user-defined algorithms coded as plugins. The processing engine was supported by several webservice-enabled modules used for data and plugin exchange. The user, data and processing infrastructure were connected using the Rapid framework created by the UK National e-Science Centre. Rapid generates intuitive interfaces to the processing core in the form of two self-contained JSR-168 remote portlets. One portlet facilitated plugin creation, whilst the other allowed execution of plugin code within the processing core running on a campus or national Grid infrastructure. The RapidSeis system was deployed within a community gateway: the NERIES web portal. Although RapidSeis originated within the seismological community we suggest it forms a framework which could be exploited in different domains or scientific gateways where users can discover data, store data within a cart and wish to apply specialised processing algorithms remotely through a web browser. Processing performed on Grid infrastructure is completely transparent: the execution portlet handles submission and scheduling. The processing algorithms can be created online, stored and shared between users of the community web portal. The data and algorithm metadata are described in RDF and exchanged within the architecture which is commonly geographically distributed. Further investigation is required to improve the provenance metadata to enable better traceability of both data and processing activities. The API used by the plugin code also requires additional development and the user-interface could be made even more intuitive with further modification of the Rapid framework.

Spinuso, Alessandro; Heath, Andy; Koestjer, Jos; Trani, Luca

2010-05-01

75

Density functional study of the properties of Tl6SeI4 for radiation detection applications  

NASA Astrophysics Data System (ADS)

The extra compositional freedom available in ternary compounds allow flexibility to tune their electronic and structural properties compared to the binary counterparts. Indeed, the Tl-based ternary semiconductor Tl6SeI4 is a promising candidate for radiation detectors. It has a band gap (1.86 eV) that is intermediate between those of Tl2Se (0.6 eV) and TlI (2.75 eV) and suitable for room temperature detectors. However, the flexibility in ternary semiconductors may come at the expense of more channels for defect formation and more complex defect chemistry, which need to be studied in details. To better understand the properties of Tl6SeI4in relation to the radiation detection, we performed first-principles study of electronic structure, phase diagram, and dielectric, optical, and defect properties in Tl6SeI4.[1] We will discuss the properties of defects and their diffusion barriers in the context of resistivity and polarization phenomenon in Tl6SeI4. [1] K. Biswas, M.-H. Du, and D. J. Singh, Phys. Rev. B 86, 144108 (2012).

Biswas, Koushik; Du, Mao-Hua; Singh, David

2013-03-01

76

Ionic Liquid-Enhanced Solid State Electrolyte Interface (SEI) for Lithium Sulfur Batteries  

SciTech Connect

Li-S battery is a complicated system with many challenges existing before its final market penetration. While most of the reported work for Li-S batteries is focused on the cathode design, we demonstrate in this work that the anode consumption accelerated by corrosive polysulfide solution also critically determines the Li-S cell performance. To validate this hypothesis, ionic liquid (IL) N-methyl-N-butylpyrrolidinium bis(trifluoromethylsulfonyl)imide (Py14TFSI) has been employed to modify the properties of SEI layer formed on Li metal surface in Li-S batteries. It is found that the IL-enhanced passivation film on the lithium anode surface exhibits much different morphology and chemical compositions, effectively protecting lithium metal from continuous attack by soluble polysulfides. Therefore, both cell impedance and the irreversible consumption of polysulfides on lithium metal are reduced. As a result, the Coulombic efficiency and the cycling stability of Li-S batteries have been greatly improved. After 120 cycles, Li-S battery cycled in the electrolyte containing IL demonstrates a high capacity retention of 94.3% at 0.1 C rate. These results unveil another important failure mechanism for Li-S batteries and shin the light on the new approaches to improve Li-S battery performances.

Zheng, Jianming; Gu, Meng; Chen, Honghao; Meduri, Praveen; Engelhard, Mark H.; Zhang, Jiguang; Liu, Jun; Xiao, Jie

2013-05-16

77

Teaching with Real-time Earthquake Data in jAmaSeis  

NASA Astrophysics Data System (ADS)

Earthquakes can capture the attention of students and inspire them to explore the Earth. The Incorporated Research Institutions in Seismology (IRIS) and Moravian College are collaborating to develop cross-platform software (jAmaSeis) that enables students to access real-time earthquake waveform data. Users can record their own data from several different types of educational seismometers, and they can obtain data in real-time from other jAmaseis users nationwide. Additionally, the ability to stream data from the IRIS Data Management Center (DMC) is under development. Once real-time data is obtained, users of jAmaseis can study seismological concepts in the classroom. The user interface of the software is carefully designed to lead students through the steps to interrogate seismic data following a large earthquake. Users can process data to determine characteristics of seismograms such as time of occurrence, distance from the epicenter to the station, magnitude, and location (via triangulation). Along the way, the software provides graphical clues to assist student interpretations. In addition to the inherent pedagogical features of the software, IRIS provides pre-packaged data and instructional activities to help students learn the analysis steps. After using these activities, students can apply their skills to interpret seismic waves from their own real-time data.

Bravo, T. K.; Coleman, B.; Taber, J.

2011-12-01

78

Endoscopic and imaging appearance after injection of an ano-rectal bulking agent.  

PubMed

The use of hyaluronic acid and dextranomer (Solesta, Salix) injection in the anal canal is an emerging modality in the treatment of fecal incontinence. However, little is known regarding the endoscopic and radiological appearance following injection of this ano-rectal bulking agent. We report computed tomography and endoscopic findings after hyaluronic acid/dextranomer injection in the ano-rectal area. PMID:25031792

Papafragkakis, Haris; Changela, Kinesh; Bhatia, Taruna; Ona, Mel A; Malieckal, Anju; Paleti, Vani; Fuksbrumer, Moshe S; Anand, Sury

2014-07-16

79

Endoscopic and imaging appearance after injection of an ano-rectal bulking agent  

PubMed Central

The use of hyaluronic acid and dextranomer (Solesta, Salix) injection in the anal canal is an emerging modality in the treatment of fecal incontinence. However, little is known regarding the endoscopic and radiological appearance following injection of this ano-rectal bulking agent. We report computed tomography and endoscopic findings after hyaluronic acid/dextranomer injection in the ano-rectal area.

Papafragkakis, Haris; Changela, Kinesh; Bhatia, Taruna; Ona, Mel A; Malieckal, Anju; Paleti, Vani; Fuksbrumer, Moshe S; Anand, Sury

2014-01-01

80

ANOs 3-7 in the anoctamin/Tmem16 Cl- channel family are intracellular proteins.  

PubMed

Ca(2+)-activated Cl(-) channels (CaCCs) participate in numerous physiological functions such as neuronal excitability, sensory transduction, and transepithelial fluid transport. Recently, it was shown that heterologously expressed anoctamins ANO1 and ANO2 generate currents that resemble native CaCCs. The anoctamin family (also called Tmem16) consists of 10 members, but it is not known whether all members of the family are CaCCs. Expression of ANOs 3-7 in HEK293 cells did not generate Cl(-) currents activated by intracellular Ca(2+), as determined by whole cell patch clamp electrophysiology. With the use of confocal imaging, only ANO1 and ANO2 traffic to the plasma membrane when expressed heterologously. Furthermore, endogenously expressed ANO7 in the human prostate is predominantly intracellular. We took a chimeric approach to identify regions critical for channel trafficking and function. However, none of the chimeras of ANO1 and ANO5/7 that we made trafficked to the plasma membrane. Our results suggest that intracellular anoctamins may be endoplasmic reticulum proteins, although it remains unknown whether these family members are CaCCs. Determining the role of anoctamin family members in ion transport will be critical to understanding their functions in physiology and disease. PMID:22075693

Duran, Charity; Qu, Zhiqiang; Osunkoya, Adeboye O; Cui, Yuanyuan; Hartzell, H Criss

2012-02-01

81

Multifunctional anti-angiogenic activity of the cyclic peroxide ANO-2 with antitumor activity.  

PubMed

Our focus was to develop an anti-angiogenic drug possessing the inhibitory activity of urokinase-type plasminogen activator (u-PA) production. During preliminary screening, the effects of 13 ozonides on the inhibition of u-PA production in human fibrosarcoma HT-1080 cells and on the inhibition of angiogenesis on chicken embryonic chorioallantoic membranes were determined. Of the ozonides tested, 9 inhibited in vitro u-PA production of HT-1080 cells and 7 of these 9 exhibited strong anti-angiogenic activity. Interestingly, 6 of the 13 ozonides also inhibited cathepsin B activity. 1-Phenyl-1, 4-epoxy-1H,4H-naphtho[1,8-de][1, 2]dioxepin (ANO-2) potently inhibited cathepsin B (IC(50) = 0.47 microM) as well as u-PA production. Consequently, ANO-2 was selected for further study. ANO-2 inhibited tube formation by human umbilical vein endothelial cells cultured on Matrigel while exhibiting no cytotoxicity. Additionally, in vivo administration of ANO-2 inhibited angiogenesis induced by mouse Sarcoma-180 cells tested using the mouse dorsal air sac assay. Moreover, ANO-2 also suppressed primary tumor growth and reduced the number of pulmonary metastases caused by Lewis lung carcinoma cells in mice. These in vitro and in vivo activities indicate that ANO-2 has considerable potential as a new and potent anti-angiogenic drug that inhibits both u-PA production and enzymatic activity of cathepsins, indicating that ANO-2 may be a multifunctional inhibitor of angiogenesis. PMID:12115573

Arakawa, Kazuhito; Endo, Yoshio; Kimura, Masashi; Yoshida, Takanori; Kitaoka, Takeshi; Inakazu, Tomoyasu; Nonami, Yuji; Abe, Manabu; Masuyama, Araki; Nojima, Masatomo; Sasaki, Takuma

2002-07-10

82

The winds of O-stars. I - An analysis of the UV line profiles with the SEI method  

NASA Technical Reports Server (NTRS)

The theoretical UV P Cygni profiles of the UV resonance lines for C IV, N V, Si IV, C III, and N IV of 26 O-type stars and one B star were calculated using the SEI method described by Lamers et al. (1987), taking into account the effects of turbulence in the wind, limb darkening, photospheric lines, and interstellar Ly alpha. The results were compared with profiles observed with the IUE satellite. The profile fits were found to be very accurate, showing significant improvement over previously obtained fits with the Sobolev (1958) method. The SEI method and the line fitting analysis are described and the results are presented in terms of the column densities and distributions of absorbing atoms, and the velocity laws.

Groenewegen, M. A. T.; Lamers, H. J. G. L. M.

1989-01-01

83

The winds of O-stars. I - an analysis of the UV line profiles with the SEI method  

NASA Astrophysics Data System (ADS)

The theoretical UV P Cygni profiles of the UV resonance lines for C IV, N V, Si IV, C III, and N IV of 26 O-type stars and one B star were calculated using the SEI method described by Lamers et al. (1987), taking into account the effects of turbulence in the wind, limb darkening, photospheric lines, and interstellar Ly alpha. The results were compared with profiles observed with the IUE satellite. The profile fits were found to be very accurate, showing significant improvement over previously obtained fits with the Sobolev (1958) method. The SEI method and the line fitting analysis are described and the results are presented in terms of the column densities and distributions of absorbing atoms, and the velocity laws.

Groenewegen, M. A. T.; Lamers, H. J. G. L. M.

1989-09-01

84

MineSeis -- A MATLAB GUI program to calculate synthetic seismograms from a linear, multi-shot blast source model  

Microsoft Academic Search

Modeling ground motions from multi-shot, delay-fired mining blasts is important to the understanding of their source characteristics such as spectrum modulation. MineSeis is a MATLAB{reg_sign} (a computer language) Graphical User Interface (GUI) program developed for the effective modeling of these multi-shot mining explosions. The program provides a convenient and interactive tool for modeling studies. Multi-shot, delay-fired mining blasts are modeled

1998-01-01

85

Novel SEI formation of maleimide-based additives and its improvement of capability and cyclicability in lithium ion batteries  

Microsoft Academic Search

This investigation elucidates three maleimide (MI)-based aromatic molecules as additives in electrolyte that is used in lithium ion batteries. The 1.1M LiPF6 in ethylene carbonate (EC):propylene carbonate (PC):diethylene carbonate (DEC) (3:2:5 in volume) containing MI-based additives can prompt the formation of a solid electrolyte interface (SEI); and inhibit the entering into the irreversible state during lithium intercalation and co-intercalation. The

Fu-Ming Wang; Hsin-Mei Cheng; Hung-Chun Wu; San-Yan Chu; Chin-Shu Cheng; Chang-Rung Yang

2009-01-01

86

Automated infrasound signal detection algorithms implemented in MatSeis - Infra Tool.  

SciTech Connect

MatSeis's infrasound analysis tool, Infra Tool, uses frequency slowness processing to deconstruct the array data into three outputs per processing step: correlation, azimuth and slowness. Until now, an experienced analyst trained to recognize a pattern observed in outputs from signal processing manually accomplished infrasound signal detection. Our goal was to automate the process of infrasound signal detection. The critical aspect of infrasound signal detection is to identify consecutive processing steps where the azimuth is constant (flat) while the time-lag correlation of the windowed waveform is above background value. These two statements describe the arrival of a correlated set of wavefronts at an array. The Hough Transform and Inverse Slope methods are used to determine the representative slope for a specified number of azimuth data points. The representative slope is then used in conjunction with associated correlation value and azimuth data variance to determine if and when an infrasound signal was detected. A format for an infrasound signal detection output file is also proposed. The detection output file will list the processed array element names, followed by detection characteristics for each method. Each detection is supplied with a listing of frequency slowness processing characteristics: human time (YYYY/MM/DD HH:MM:SS.SSS), epochal time, correlation, fstat, azimuth (deg) and trace velocity (km/s). As an example, a ground truth event was processed using the four-element DLIAR infrasound array located in New Mexico. The event is known as the Watusi chemical explosion, which occurred on 2002/09/28 at 21:25:17 with an explosive yield of 38,000 lb TNT equivalent. Knowing the source and array location, the array-to-event distance was computed to be approximately 890 km. This test determined the station-to-event azimuth (281.8 and 282.1 degrees) to within 1.6 and 1.4 degrees for the Inverse Slope and Hough Transform detection algorithms, respectively, and the detection window closely correlated to the theoretical stratospheric arrival time. Further testing will be required for tuning of detection threshold parameters for different types of infrasound events.

Hart, Darren

2004-07-01

87

Conceptualizing the Abstractions of Earthquakes Through an Instructional Sequence Using SeisMac and the Rapid Earthquake Viewer  

NASA Astrophysics Data System (ADS)

Newsworthy earthquakes provide an engaging hook for students in Earth science classes, particularly when discussing their effects on people and the landscape. However, engaging students in an analysis of earthquakes that extends beyond death and damage, is frequently hampered by the abstraction of recorded ground motion data in the form of raw seismograms and the inability of most students to personally relate to ground accelerations. To overcome these challenges, an educational sequence has been developed using two software tools: SeisMac by Daniel Griscom, and the Rapid Earthquake Viewer (REV) developed by the University of South Carolina in collaboration with IRIS and DLESE. This sequence presents a unique opportunity for Earth Science teachers to "create" foundational experiences for students as they construction a framework of understanding of abstract concepts. The first activity is designed to introduce the concept of a three-component seismogram and to directly address the very abstract nature of seismograms through a kinesthetic experience. Students first learn to take the pulse of their classroom through a guided exploration of SeisMac, which displays the output of the laptop's built-in Sudden Motion Sensor (a 3-component accelerometer). This exploration allows students to view a 3-component seismogram as they move or tap the laptop and encourages them to propose and carry out experiments to explain the meaning of the 3-component seismogram. Once completed students are then asked to apply this new knowledge to a real 3-component seismogram printed from REV. Next the activity guides students through the process of identifying P and S waves and using SeisMac to connect the physical motion of the laptop to the "wiggles" they see on the SeisMac display and then comparing those to the "wiggles" they see on their seismogram. At this point students are more fully prepared to engage in an S-P location exercise such as those included in many state standards because they have a physical sense of what the wiggles indicate. As a result students are better positioned to identify S and P arrivals within the complexity of real data available through REV rather than using the canned or artificial data normally associated with a location exercise. REV provides easy access to recent and noteworthy earthquake data via a simple Web interface. Earthquake locations and near-real time ground motion data are accessed via the IRIS Data Management System, and data are automatically processed and selected so that only events with "good" data are presented within REV. Once students have completed the learning sequence using SeisMac, they will be better able to relate the trace of a seismogram to the physical motion of the ground. This can then lead to better understanding of more advanced exercises including detecting the core and finding the Moho. Building on an understanding of the basics of a seismogram, SeisMac can next be used to help student further understand earthquakes by provide a kinesthetic experience to model how hard the Earth shakes during earthquakes. Through another guided exploration students discover that the SeisMac display is calibrated in units of acceleration and can be related to the Modified Mercalli scale. They then compare shaking during an earthquake via video clips and ground shaking maps from the USGS "Did you feel it" Web site to the shaking of personal objects and the laptop.

Taber, J.; Hubenthal, M.; Wysession, M.

2007-12-01

88

Density matrix averaged atomic natural orbital (ANO) basis sets for correlated molecular wave functions  

Microsoft Academic Search

Generally contracted basis sets for the first row transition metal atoms Sc-Zn have been constructed using the atomic natural orbital (ANO) approach, with modifications for allowing symmetry breaking and state averaging. The ANOs are constructed by averaging over the three electronic configurationsdn,dn-1s, anddn-2s2 for the neutral atom as well as the ground state for the cation and the ground state

Rosendo Pou-Amrigo; Manuela Merchn; Ignacio Nebot-Gil; Per-Olof Widmark; Bjiirn O. Roos

1995-01-01

89

Calcium-activated chloride channel ANO1 promotes breast cancer progression by activating EGFR and CAMK signaling.  

PubMed

The calcium-activated chloride channel anoctamin 1 (ANO1) is located within the 11q13 amplicon, one of the most frequently amplified chromosomal regions in human cancer, but its functional role in tumorigenesis has remained unclear. The 11q13 region is amplified in ?15% of breast cancers. Whether ANO1 is amplified in breast tumors, the extent to which gene amplification contributes to ANO1 overexpression, and whether overexpression of ANO1 is important for tumor maintenance have remained unknown. We have found that ANO1 is amplified and highly expressed in breast cancer cell lines and primary tumors. Amplification of ANO1 correlated with disease grade and poor prognosis. Knockdown of ANO1 in ANO1-amplified breast cancer cell lines and other cancers bearing 11q13 amplification inhibited proliferation, induced apoptosis, and reduced tumor growth in established cancer xenografts. Moreover, ANO1 chloride channel activity was important for cell viability. Mechanistically, ANO1 knockdown or pharmacological inhibition of its chloride-channel activity reduced EGF receptor (EGFR) and calmodulin-dependent protein kinase II (CAMKII) signaling, which subsequently attenuated AKT, v-src sarcoma viral oncogene homolog (SRC), and extracellular signal-regulated kinase (ERK) activation in vitro and in vivo. Our results highlight the involvement of the ANO1 chloride channel in tumor progression and provide insights into oncogenic signaling in human cancers with 11q13 amplification, thereby establishing ANO1 as a promising target for therapy in these highly prevalent tumor types. PMID:23431153

Britschgi, Adrian; Bill, Anke; Brinkhaus, Heike; Rothwell, Christopher; Clay, Ieuan; Duss, Stephan; Rebhan, Michael; Raman, Pichai; Guy, Chantale T; Wetzel, Kristie; George, Elizabeth; Popa, M Oana; Lilley, Sarah; Choudhury, Hedaythul; Gosling, Martin; Wang, Louis; Fitzgerald, Stephanie; Borawski, Jason; Baffoe, Jonathan; Labow, Mark; Gaither, L Alex; Bentires-Alj, Mohamed

2013-03-12

90

Unfolded ANO-1 fluxes using the LEPRICON methodology. [Least-squares EPRI CONsolidation  

SciTech Connect

Calculated fluxes at a one-quarter depth midplane location in the pressure vessel of the ANO-1 reactor were adjusted using the LEPRICON methodology. The adjustment was based on the LEPRICON benchmark database in combination with the ANO-1 cavity activation measurements. The LEPRICON database has been expanded and now also includes the PSF field, of which the analysis has been recently completed. The measured, calculated and adjusted ANO-1 activations are presented together with their corresponding uncertainties. However, the main purpose of this work is to obtain more credible flux values in the pressure vessel. The pressure-vessel flux adjustments and the reduction in the pressure vessel flux uncertainties are elaborated on in the concluding section.

Wagschal, J.J.; Maerker, R.E.; Broadhead, B.L.; Williams, M.L.

1985-01-01

91

Estudo do nvel de desenvolvimento da coordenao motora da populao escolar (6 a 10 anos de idade) da Regio Autnoma dos Aores  

Microsoft Academic Search

Motor coordination level of school aged children (6-10 years) of the Azores Islands The purposes of this investigation were: (1) to characterize the develop- mental state of motor coordination in primary school children; (2) to identify differences between children of both genders; and to (3) identify the presence of insufficient motor coordination. Sample comprises 3742 children of both genders with

V. P. Lopes; R. G. Silva; A. Seabra; F. P. Morais

92

Computed vibrational frequencies of actinide oxides AnO(0/+/2+) and AnO2(0/+/2+) (An = Th, Pa, U, Np, Pu, Am, Cm).  

PubMed

The vibrational frequencies of the actinide oxides AnO and AnO(2) (An = Th, Pa, U, Np, Pu, Am, Cm) and of their mono- and dications have been calculated using advanced quantum chemical techniques. The stretching fundamental frequencies of the monoxides have been determined by fitting the potential function to single-point energies obtained by relativistic CASPT2 calculations along the stretching coordinate and on this basis solving numerically the ro-vibrational Schro?dinger equation. To obtain reliable fundamental frequencies of the dioxides, we developed an empirical approach. In this approach the harmonic vibrational frequencies of the AnO(2)(0/+/2+) species were calculated using eight different exchange-correlation DFT functionals. On the basis of the good correlation found between the vibrational frequencies and computed bond distances, the final frequency values were derived for the CASPT2 reference bond distances from linear regression equations fitted to the DFT data of each species. As a test, the approach provided excellent agreement with accurate experimental data of ThO, ThO(+), UO, and UO(+). The joint analysis of literature experimental and our computed data facilitated the prediction of reliable gas-phase molecular properties for some oxides. They include the stretching frequencies of PuO, ThO(2), UO(2), and UO(2)(+) and the bond distance of PuO (1.818 , being likely within 0.002 of the real value). Also the derived equilibrium bond distances of ThO(2), UO(2), and UO(2)(+) (1.896, 1.790, and 1.758 , respectively) should approximate closely the (yet unknown) experimental values. On the basis of the present results, we suggest that the ground electronic state of PuO(2) in Ar and Kr matrices is probably different from that in the gaseous phase, similarly to UO(2) observed previously. PMID:21604729

Kovcs, Attila; Konings, Rudy J M

2011-06-23

93

Doenas cerebrovasculares em pacientes entre 15 e 40 anos: achados neuropatolgicos em 47 casos  

Microsoft Academic Search

RESUMO - As doenas cerebrovasculares em pacientes entre 15 e 40 anos so pouco estudadas na literatura latino americana, principalmente no que tange aos achados neuropatolgicos. Analisamos 47 encfalos provenientes de necrpsias completas realizadas no perodo de 1987 a 1997 selecionados com base na faixa etria e alterao neuropatolgica bsica envolvendo fenmenos vasculares. Destes 47 casos analisados, 26 eram (55,3%)

Everton M. Maggio; Mrio R. Montemr-Netto; Emerson L. Gasparetto; Jorge S. Reis-Filho; Fbio A. Tironi; Luiz F. Bleggi Torres

2001-01-01

94

A Gravimetric Survey of the Santa Cruz-Ano Nuevo Point Continental Shelf and Adjacent Coastline.  

National Technical Information Service (NTIS)

Gravity data was collected from 82 seafloor and 41 land stations in a 334 sq km area between Santa Cruz and Ano Nuevo Point, California. The methods of data collection and reduction are discussed, with the introduction of a unique sequence pertaining to a...

C. H. Spikes

1973-01-01

95

Meta-analysis of operative techniques for fissure-in-ano  

Microsoft Academic Search

PURPOSE: Operative techniques commonly used for fissure-in-ano include anal stretch, open lateral sphincterotomy, closed lateral sphincterotomy, posterior midline sphincterotomy, and to a lesser extent dermal flap coverage of the fissure. Reports of direct comparisons among these techniques are variable in their results and for the most part underpowered. A rigorous analysis of the combined reports was therefore undertaken to determine

Richard L. Nelson

1999-01-01

96

Characterization of the Oligomeric Structure of the Ca2+-activated Cl? Channel Ano1/TMEM16A*  

PubMed Central

Members of the Anoctamin (Ano)/TMEM16A family have recently been identified as essential subunits of the Ca2+-activated chloride channel (CaCC). For example, Ano1 is highly expressed in multiple tissues including airway epithelia, where it acts as an apical conduit for transepithelial Cl? secretion and helps regulate lung liquid homeostasis and mucus clearance. However, little is known about the oligomerization of this protein in the plasma membrane. Thus, utilizing mCherry- and eGFP-tagged Ano1 constructs, we conducted biochemical and Frster resonance energy transfer (FRET)-based experiments to determine the quaternary structure of Ano1. FRET and co-immunoprecipitation studies revealed that tagged Ano1 subunits directly associated before they reached the plasma membrane. This association was not altered by changes in cytosolic Ca2+, suggesting that this is a fixed interaction. To determine the oligomeric structure of Ano1, we performed chemical cross-linking, non-denaturing PAGE, and electromobility shift assays, which revealed that Ano1 exists as a dimer. These data are the first to probe the quaternary structure of Ano1. Understanding the oligomeric nature of Ano1 is an essential step in the development of therapeutic drugs that could be useful in the treatment of cystic fibrosis.

Sheridan, John T.; Worthington, Erin N.; Yu, Kuai; Gabriel, Sherif E.; Hartzell, H. Criss; Tarran, Robert

2011-01-01

97

Comparison of Methods for Identifying Ano-Genital Injury After Consensual Intercourse  

PubMed Central

Objective The purpose of this report is to compare consensual intercourse related ano-genital injury prevalence by using three different forensic examination techniques: 1) direct visual inspection, 2) colposcopy and 3) toluidine-blue contrast application. Methods Using a descriptive, comparative design, 120 female volunteers, aged 21 years or older, were examined after consensual sexual intercourse using the above techniques. Ano-genital injuries were noted using the TEARS classification (Tears, Ecchymoses, Abrasions, Redness, and Swelling). Results Direct visualization and colposcopy yielded similar ano-genital injury findings. However, more tears and abrasions of the external genitalia were identified with toluidine-blue than with direct visual inspection or colposcopy (p <.05). More tears were identified on the anus following toluidine-blue as compared to direct visualization (p <.05), but not colposcopy. Fewer ecchymoses were identified on the internal genitalia and fewer areas of redness were identified on both the external and internal genitalia when toluidine-blue was used as compared to either direct visualization or colposcopy (p <.05). Conclusions The scientific community needs to continue to build information about ano-genital injury prevalence following consensual sexual intercourse. Understanding the ano-genital injury patterns, including frequency and prevalence, that occur with consensual sexual intercourse will help to identify the difference between injury related to consensual vs. non-consensual sexual intercourse. At this time, toluidine-blue staining may add value to the sexual assault forensic examination. It is the healthcare providers role to collect all possible evidence and the courts role to determine what evidence is admissible and to ensure a rightful conviction.

Zink, Therese; Fargo, Jamison D.; Baker, Rachel B.; Buschur, Carol; Fisher, Bonnie S.; Sommers, Marilyn S.

2010-01-01

98

The phenotypic spectrum of DYT24 due to ANO3 mutations.  

PubMed

Genes causing primary dystonia are rare. Recently, pathogenic mutations in the anoctamin 3 gene (ANO3) have been identified to cause autosomal dominant craniocervical dystonia and have been assigned to the dystonia locus dystonia-24 (DYT24). Here, we expand on the phenotypic spectrum of DYT24 and provide demonstrative videos. Moreover, tremor recordings were performed, and back-averaged electroencephalography, sensory evoked potentials, and C-reflex studies were carried out in two individuals who carried two different mutations in ANO3. Ten patients from three families are described. The age at onset ranged from early childhood to the forties. Cervical dystonia was the most common site of onset followed by laryngeal dystonia. The characteristic feature in all affected individuals was the presence of tremor, which contrasts DYT24 from the typical DYT6 phenotype. Tremor was the sole initial manifestation in some individuals with ANO3 mutations, leading to misdiagnosis as essential tremor. Electrophysiology in two patients with two different mutations showed co-contraction of antagonist muscles, confirming dystonia, and a 6-Hz arm tremor at rest, which increased in amplitude during action. In one of the studied patients, clinically superimposed myoclonus was observed. The duration of the myoclonus was in the range of 250 msec at about 3 Hz, which is more consistent with subcortical myoclonus. In summary, ANO3 causes a varied phenotype of young-onset or adult-onset craniocervical dystonia with tremor and/or myoclonic jerks. Patients with familial cervical dystonia who also have myoclonus-dystonia as well as patients with prominent tremor and mild dystonia should be tested for ANO3 mutations. PMID:24442708

Stamelou, Maria; Charlesworth, Gavin; Cordivari, Carla; Schneider, Susanne A; Kgi, Georg; Sheerin, Una-Marie; Rubio-Agusti, Ignacio; Batla, Amit; Houlden, Henry; Wood, Nicholas W; Bhatia, Kailash P

2014-06-01

99

Implementation of the Virtual Seismologist Early Warning Algorithm within the SeisComP3 Earthquake Processing System  

NASA Astrophysics Data System (ADS)

The Virtual Seismologist (VS) earthquake early warning (EEW) methodology is a Bayesian approach to EEW, wherein the most probable source estimate at any given time is a combination of contributions from a likelihood function that evolves in response to incoming data from the on-going earthquake, and selected prior information, which can include factors such as network topology, the Gutenberg-Richter relationship or previously observed seismicity. The VS algorithm, implemented by the Swiss Seismological Service (SED) at ETH Zurich, is a fundamental component of the California Integrated Seismic Network (CISN) ShakeAlert system, and has been thoroughly tested in real-time the Southern California Seismic Network since July 2008, and at the Northern California Seismic Network since February 2009. SeisComP3 (SC3) is a fully featured automated real-time earthquake monitoring software developed by GeoForschungZentrum Potsdam in collaboration with commercial partner, gempa GmbH. It is becoming a community standard software for earthquake detection and waveform processing for regional and global networks across the globe, including at the SED. As part of efforts in the development of real-time seismology tools supported by the Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation (NERA), the VS EEW algorithm has been implemented within the SeisComP3 framework. We discuss the software design and development, as well as testing and performance evaluation on real-time and archived waveform data from the SED. The "VS in SC3" effort facilitates the seamless integration of real-time EEW within standard network processing at SED, as well as the distribution, installation, and real-time testing of the VS codes at various European networks, in particular, real-time test sites at Naples, Istanbul, Patras, and Iceland planned as part of FP7 project REAKT "Strategies and Tools for Real-Time Earthquake Risk Mitigation".

Cua, G. B.; Fischer, M.; Heimers, S.; Clinton, J. F.; Diehl, T.; Kaestli, P.; Becker, J.; Saul, J.

2011-12-01

100

Density matrix averaged atomic natural orbital (ANO) basis sets for correlated molecular wave functions III. First row transition metal atoms  

Microsoft Academic Search

Generally contracted basis sets for the first row transition metal atoms ScZn have been constructed using the atomic natural orbital (ANO) approach, with modifications for allowing symmetry breaking and state averaging. The ANOs are constructed by averaging over the three electronic configurations d n, d n-1 s, and d n-2 s 2 for the neutral atom as well as the

Rosendo Pou-Amrigo; Manuela Merchn; Ignacio Nebot-Gil; Per-Olof Widmark; Bjrn O. Roos

1995-01-01

101

Prospective randomised trial comparing ayurvedic cutting seton and fistulotomy for low fistula-in-ano  

Microsoft Academic Search

The aim of this study was to evaluate the role of ayurvedic setons in the treatment of low fistula-in-ano. One hundred and\\u000a eight patients were randomised into either conventional fistulotomy (F) or ayurvedic cutting seton insertion (C). Endpoints\\u000a investigated included time to wound healing and complications of surgery. Post-operative pain scores were measured daily using\\u000a a visual analog scale. Anal

K. S. Ho; C. Tsang; F. Seow-Choen; Y. H. Ho; C. L. Tang; S. M. Heah; K. W. Eu

2001-01-01

102

Hydrogen peroxide-enhanced transanal ultrasound in the assessment of fistula-in-ano  

Microsoft Academic Search

Appropriate classification of the fistulous tracts in patients with fistula-in-ano may be of value for the planning of proper surgery. Conventional transanal ultrasound has limited value in the visualization of fistulous tracts and their internal openings. Hydrogen peroxide can be used as a contrast medium for ultrasound to improve visualization of fistulas. PURPOSE: This prospective study evaluates hydrogen peroxide-enhanced ultrasound

A. C. Poen; R. J. F. Felt-Bersma; Q. A. J. Eijsbouts; M. A. Cuesta; S. G. M. Meuwissen

1998-01-01

103

Stapled Haemorrhoidopexy for Haemorrhoids in Combination with Lateral Internal Sphincterotomy for Fissure-in-Ano  

Microsoft Academic Search

The aim of this prospective study is to describe the combined technique and results of stapled haemorrhoidopexy and lateral internal sphincterotomy for patients suffering from prolapsing 3rd-degree haemorrhoids and chronic fissure-in-ano. During the period from 1999 to 2004, 26 patients underwent combined surgical treatment for anal fissure and prolapsing symptomatic haemorrhoids. Preoperative and postoperative clinical evaluation and the patients degree

I. Kanellos; S. Angelopoulos; E. Zacharakis; D. Kanellos; M. G. Pramateftakis; K. Blouhos; D. Betsis

2005-01-01

104

Attitude of Academic Staff in Nigerian Tertiary Educational Institutions to Student Evaluation of Instruction (SEI): A Case Study of Cross River State University  

ERIC Educational Resources Information Center

This study was designed to assess the attitude of academic staff in Nigerian tertiary educational institutions to student evaluation of instruction (SEI) and to find out the variable factors that influenced the expressed attitude of members of the academic staff, using Cross River State University as a case study. The study was a survey and so a

Idaka, Idaka I.; Joshua, Monday T.

2009-01-01

105

Detection of enterotoxin genes seg, seh, sei, and sej and of a novel aroA genotype in Jordanian clinical isolates of Staphylococcus aureus.  

PubMed

The presence of staphylococcal enterotoxin (SE) genes (seg, seh, sei, and sej) and the correlation of their prevalence with the genotypes were studied in 100 clinical isolates of Staphylococcus aureus. Polymerase chain reaction (PCR) of SE genes indicated that 39% of the isolates were enterotoxigenic. Thirty-seven percent of the total isolates were seg positive, whereas 24% and 4% were sei and seh positive, respectively. All isolates containing sei were positive for seg, whereas sej gene was not detected. Genotyping by PCR-restriction fragment length polymorphism analysis of the aroA gene revealed that 39% of the isolates were type A and 11% were type B, and 50% displayed a novel (N) genotype. The presence of the enterotoxin genes was independent (P < 0.05) of the genotypes of the tested S. aureus isolates. This study has demonstrated that the seg was the most dominant enterotoxin gene and that the enterotoxigenic Jordanian S. aureus isolates belong to different genotypes, and N genotype was predominant. PMID:16725300

El-Huneidi, Waseem; Bdour, Salwa; Mahasneh, Adel

2006-10-01

106

The Ca2+-activated Cl? channel, ANO1 (TMEM16A), is a double-edged sword in cell proliferation and tumorigenesis  

PubMed Central

Since anoctamin 1 ANO1 (TMEM16A) was found to be a molecular component of Ca2+-activated Cl? channels, its role in tumorigenesis has gained attention at a fast pace. ANO1 overexpression frequently occurs in the cancer tissues along with 11q13 chromosome amplification. Poor prognosis of many types of cancers has been closely correlated with ANO1 gene amplification and protein overexpression. ANO1 is now considered an excellent biomarker for certain cancers. Recent research suggests that it is the channel function of ANO1 that is involved in the tumorigenesis. However, how the overexpression of the functional ANO1 causes malignant transformation of tissues via signaling pathways, for example, MAPK remains to be investigated. Clarification of the reasons in future will avail to make ANO1 as a target for cancer treatment.

Qu, Zhiqiang; Yao, Weicheng; Yao, Ruyong; Liu, Xiangping; Yu, Kuai; Hartzell, Criss

2014-01-01

107

Role of Aragvadhadi Sutra in the Management of Fistula -in-Ano.  

PubMed

Traditional Medicine has its own importance for the treatment of various medical and surgical diseases irrespective of tremendous development of modern medicine. There are number of diseases were after repeated surgery. Fistula-in ano is one such condition which is prone to recurrence even after repeated surgery and can be effectively treated by Ayurvedic medicines. An extensive work has been done on the treatment of Bhagandara by Kshara sutra exploring various aspects of the problem and finding our the solution to them1. the present study is related to similar type of medicated thread known as Aragvadadi Sutra which has been mentioned by sushruta in Bhagandara. It consists of Aragvadha (Cassia fistula), Haridra (Curcuma longa), Agaru (Aquilaria agalocha), Madhu (Honey) and Ghrita (Ghee). This is the first non-caustic thread being tried on different types of Bhagandara. Especially it is a painless thread, non-irritant and very useful in sensitive patients like children, females and elders. PMID:22556930

Kumar, P H; Sahu, M

2000-01-01

108

Revista Mandrgora: gnero e religio nos estudos feministas  

Microsoft Academic Search

R R R R Resumo esumo esumo esumo esumo: Gnero e religio compem uma equao ainda pouco discutida e pouco admitida. No campo dos Estudos Feministas essa relao ainda abordada de forma muito acanhada. As iniciativas de estudo dessa temtica so bastante escassas, especialmente no que tange publicao de peridicos especficos a esse respeito. Duas das revistas acadmicas

Sandra Duarte de Souza

2004-01-01

109

EFFICACY OF KSHARA SUTRA MAD FROM PAPAYA AND SNUHI LATEX IN THE TREATMENT OF FISTULA IN ANO  

PubMed Central

Fistula in ano is treated conventionally, by using the surgical techniques like fistulectomy or fistulotomy. In this practice of surgery there are many complications like delayed healing and stenosis or incontinence. The period of convalescence is also long. But after the advent of Kshara Sutra for the treatment of fistula in ano, the complications he reduced to negligible level. It has become a boon to the patients of fistula in ano. But still the quest is continuing to improve the efficacy of Kshara sutra, to make it more acceptable, of late Kshara sutra is being prepared in different ways of changing materials used for preparation, One such modification of Kshara sutra is preparing it by the use of latex expressed form the tender fruit of papaya. The advantages of this thread are low corrosiveness, less pain and speed cutting besides easy availability.

Rao, S. Dattatreya

1998-01-01

110

CUs Department of Geological Sciences - Science Education Initiative Project (GEOL-SEI): A five-year plan for introducing and supporting an evidence-based and scientific approach to teaching  

NASA Astrophysics Data System (ADS)

The Science Education Initiative (SEI) at the University of Colorado at Boulder was conceived in 2006 with the goal of improving science education at the undergraduate level by changing the basic approach to teaching in science departments. Five departments were selected on a competitive basis for participation in the SEI. The SEI is operating as a five year plan with funding of ~$1 million/year for the five departments. The goal of the SEI is to implement sustainable department-level change for an evidence-based and scientific approach to teaching. Among the five departments receiving funding for discipline-specific SEI projects is the Department of Geological Sciences (GEOL-SEI). The GEOL-SEI has worked to transform geology courses beginning with lower division large enrollment courses and moving towards upper division courses. They are transformed on the basis of existing research into how people learn, and they are characterized by the use of learning goals and effective instructional approaches. Furthermore, a natural component of the transformation towards evidence-based and scientific approaches to teaching is geocognition and geoscience education research. This research focuses on how students think about geologic concepts (e.g. misconceptions) and the effectiveness of different instructional approaches (e.g. the implementation of instructional technologies, peer learning activities, homework, and labs). The research is conducted by post-doctoral fellows (with PhDs in geology and pedagogical training) in collaboration with the instructional faculty members. The directorate of CUs Science Education Initiative provides the fellows with training useful for conducting the research. Currently, into the 4th year of its 5-year plan, the GEOL-SEI is working towards publishing its findings and exploring options for sustaining various changes made to courses and new departmental programs that support student learning (e.g. GEOL Tutoring & Study Room).

Arthurs, L.; Budd, D. A.

2009-12-01

111

Effect of boric acid treatment on the secondary cycle at ANO-2. Final report  

SciTech Connect

Because of the rapid progression of denting at the steam generator upper support plates at Arkansas Nuclear One-Unit 2 (ANO-2), Arkansas Power and Light (AP and L) implemented boric acid treatment during the third fuel cycle. Minimal effects of boric acid on secondary cycle ionic transport were observed; however, indications of accelerated corrosion of copper alloys in portions of the cycle were noted. Since the primary-to-secondary hydrogen diffusion rate data did not conform to the relation expected based on laboratory studies with Alloy 600, hydrogen transport data could not be employed to conclusively demonstrate the effect of boric acid on steam generator corrosion. Assuming that the basic form of the diffusion relation remained the same during operation with and without boric acid, a net increase in corrosion-generated hydrogen transport appeared to result from the adoption of boric acid treatment. This increase may be attributable to an increase in secondary cycle copper alloy corrosion rates, although additional measurements would be required to confirm this hypothesis.

Siegwarth, D.P.; McNea, D.A.; Sawochka, S.G.

1985-11-01

112

A complex fistula-in-ano presenting as a soft tissue tumor  

PubMed Central

INTRODUCTION Anorectal abscess and fistula are quite commonly encountered diseases. Both of these are the acute and chronic manifestations of the same entity. While abscess are thought to begin as an infection in the anal glands, their spreading into adjacent spaces results in a fistula formation. At many times this spread occurs in a complex pattern which is difficult to map and treat. PRESENTATION OF CASE This paper describes a complex perianal fistula that presented as a painless benign lump in the upper outer quadrant of the right buttock. The lump initially thought to be a soft tissue swelling was later diagnosed to be a chronic abscess cavity extending medially toward the anal canal in the form of a complex fistulous tract. DISCUSSION Complex perianal fistulas are difficult to treat and are prone to recurrences. Correct diagnosis and characterization of the fistula is essential to optimize the treatment. Clinical examination alone may not give a correct picture of the actual disease, thereby requiring radiological investigations like MRI. CONCLUSION Although rare, sometimes common clinical conditions like fistula-in-ano may also present in complex manner. It is important to establish the diagnosis firmly and map the fistula properly before going in for surgery. Complexity of fistulas and improper mapping often leads to recurrences and other complications like incontinence.

Srivastava, K.N.; Agarwal, Amit

2014-01-01

113

ANO1 contributes to angiotensin-II-activated Ca2+-dependent Cl- current in human atrial fibroblasts.  

PubMed

Cardiac fibroblasts are an integral part of the myocardial tissue and contribute to its remodelling. This study characterises for the first time the calcium-dependent chloride channels (CaCC) in the plasma membrane of primary human atrial cardiac fibroblasts by means of the iodide efflux and the patch clamp methods. The calcium ionophore A23187 and Angiotensin II (Ang II) activate a chloride conductance in cardiac fibroblasts that shares pharmacological similarities with calcium-dependent chloride channels. This chloride conductance is depressed by RNAi-mediated selective Anoctamine 1 (ANO1) but not by Anoctamine 2 (ANO2) which has been revealed as CaCC and is inhibited by the selective ANO1 inhibitor, T16inh-A01. The effect of Ang II on anion efflux is mediated through AT1 receptors (with an EC50 = 13.8 1.3 nM). The decrease of anion efflux by calphostin C and bisindolylmaleimide I (BIM I) suggests that chloride conductance activation is dependent on PKC. We conclude that ANO1 contributes to CaCC current in human cardiac fibroblasts and that this is regulated by Ang II acting via the AT1 receptor pathway. PMID:24412532

El Chemaly, Antoun; Norez, Caroline; Magaud, Christophe; Bescond, Jocelyn; Chatelier, Aurelien; Fares, Nassim; Findlay, Ian; Jayle, Christophe; Becq, Frederic; Faivre, Jean-Franois; Bois, Patrick

2014-03-01

114

ADAPTABILIDADE E ESTABILIDADE DE HBRIDOS DE MILHO NO NORDESTE BRASILEIRO NO ANO AGRCOLA DE 2000\\/2001  

Microsoft Academic Search

4 IPA, Av. Gen. San Martim 1371, Caixa Postal 1022, 50761-000, Recife, Pernambuco, Brasil. O presente trabalho teve por objetivo conhecer a adaptabilidade e a estabilidade de quarenta e um hbridos de milho quando submetidos a vinte e quatro ambientes no Nordeste brasileiro, para fins de indicao na regio. Os ensaios foram realizados no ano agrcola de 2000\\/2001, em blocos

Hlio Wilson; Lemos de Carvalho; Milton Jos Cardoso; Maria de Lourdes da Silva Leal; Manoel Xavier dos Santos; Jos Nildo Tabosa

115

The Multi-factor Predictive Seis &Gis Model of Ecological, Genetical, Population Health Risk and Bio-geodynamic Processes In Geopathogenic Zones  

NASA Astrophysics Data System (ADS)

I. Goal and Scope. Human birth rate decrease, death-rate growth and increase of mu- tagenic deviations risk take place in geopathogenic and anthropogenic hazard zones. Such zones create unfavourable conditions for reproductive process of future genera- tions. These negative trends should be considered as a protective answer of the com- plex biosocial system to the appearance of natural and anthropogenic risk factors that are unfavourable for human health. The major goals of scientific evaluation and de- crease of risk of appearance of hazardous processes on the territory of Dnipropetrovsk, along with creation of the multi-factor predictive Spirit-Energy-Information Space "SEIS" & GIS Model of ecological, genetical and population health risk in connection with dangerous bio-geodynamic processes, were: multi-factor modeling and correla- tion of natural and anthropogenic environmental changes and those of human health; determination of indicators that show the risk of destruction structures appearance on different levels of organization and functioning of the city ecosystem (geophys- ical and geochemical fields, soil, hydrosphere, atmosphere, biosphere); analysis of regularities of natural, anthropogenic, and biological rhythms' interactions. II. Meth- ods. The long spatio-temporal researches (Y. Bondarenko, 1996, 2000) have proved that the ecological, genetic and epidemiological processes are in connection with de- velopment of dangerous bio-geophysical and bio-geodynamic processes. Mathemat- ical processing of space photos, lithogeochemical and geophysical maps with use of JEIS o and ERDAS o computer systems was executed at the first stage of forma- tion of multi-layer geoinformation model "Dnipropetrovsk ARC View GIS o. The multi-factor nonlinear correlation between solar activity and cosmic ray variations, geophysical, geodynamic, geochemical, atmospheric, technological, biological, socio- economical processes and oncologic case rate frequency, general and primary popula- tion sickness cases in Dnipropetrovsk City (1.2 million persons) are described by the multi-factor predictive SEIS & GIS model of geopathogenic zones that determines the human health risk and hazards. Results and Conclusions. We have created the SEIS system and multi-factor predictive SEIS model for the analysis of phase-metric spatio- 1 temporal nonlinear correlation and variations of rhythms of human health, ecological, genetic, epidemiological risks, demographic, socio-economic, bio-geophysical, bio- geodynamic processes in geopathogenic hazard zones. Cosmophotomaps "CPM" of vegetation index, anthropogenic-landscape and landscape-geophysical human health risk of Dnipropetrovsk City present synthesis-based elements of multi-layer GIS, which include multispectral images SPOT o, maps of different geophysical, geochem- ical, anthropogenic and citogenic risk factors, maps of integral oncologic case rate frequency, general and primary population sickness cases for administrative districts. Results of multi-layer spatio-temporal correlation of geophysical field parameters and variations of population sickness rate rhythms have enabled us to state grounds and to develop medico-biological and bio-geodynamic classification of geopathogenic zones. Bio-geodynamic model has served to define contours of anthropogenic-landscape and landscape-geophysical human health risk in Dnipropetrovsk City. Biorhythmic vari- ations give foundation for understanding physiological mechanisms of organism`s adaptation to extreme helio-geophysical and bio-geodynamic environmental condi- tions, which are dictated by changes in Multi-factor Correlation Stress Field "MCSF" with deformation of 5D SEIS. Interaction between organism and environment results in continuous superpositioning of external (exogenic) Nuclear-Molecular-Cristallic "NMC" MCSF rhythms on internal (endogenic) Nuclear-Molecular-Cellular "NMCl" MCSF rhythms. Their resonance wave (energy-information) integration and disinte- gration are responsible for struc

Bondarenko, Y.

116

Structures and stability of AnO? isomers, An = Pu, Am, and Cm: a relativistic density functional study.  

PubMed

Equilibrium structures and energetics of various isomers of molecules with stoichiometry An4O (An = Pu, Am, and Cm) are studied through electronic structure calculations at the relativistic density functional theory level in the frame of an accurate small-core pseudopotential model. In all cases, the global minima of the An4O potential energy surfaces correspond to dioxo-superoxido-like species, [AnO2](O2). The stability of the "true" oxides AnO4 decreases from Pu to Cm, whereas the isomers with two O2 groups become relatively more stable. Correlation between the formal oxidation states and the Bader net charges of actinide atoms is discussed. Structural parameters, vibrational frequencies and charge and spin magnetization density distributions are analyzed in order to characterize the different isomers in chemical terms. Decrease of the An oxidation states along the An series is evident. PMID:24695756

Zaitsevskii, Andri; Schwarz, W H Eugen

2014-05-21

117

Surgery for fistula-in-ano in a specialist colorectal unit: a critical appraisal  

PubMed Central

Background Several techniques have been described for the management of fistula-in-ano, but all carry their own risks of recurrence and incontinence. We conducted a prospective study to assess type of presentation, treatment strategy and outcome over a 5-year period. Methods Between 1st January 2005 and 31st March 2011 247 patients presenting with anal fistulas were treated at the University Hospital Tor Vergata and were included in the present prospective study. Mean age was 47 years (range 16-76 years); minimum follow-up period was 6 months (mean 40, range 6-74 months). Patients were treated using 4 operative approaches: fistulotomy, fistulectomy, seton placement and rectal advancement flap. Data analyzed included: age, gender, type of fistula, operative intervention, healing rate, postoperative complications, reinterventions and recurrence. Results Etiologies of fistulas were cryptoglandular (n = 218), Crohn's disease (n = 26) and Ulcerative Colitis (n = 3). Fistulae were classified as simple -intersphincteric 57 (23%), low transphincteric 28 (11%) and complex -high transphicteric 122 (49%), suprasphincteric 2 (0.8%), extrasphinteric 2 (0.8%), recto-vaginal 7 (2.8%) Crohn 26 (10%) and UC 3 (1.2%). The most common surgical procedure was the placement of seton (62%), usually applied in case of complex fistulae and Crohn's patients. Eighty-five patients (34%) underwent fistulotomy, mainly for intersphincteric and mid/low transphincteric tracts. Crohn's patients were submitted to placement of one or more loose setons. The main treatment successfully eradicated the primary fistula tract in 151/247 patients (61%). Three cases of major incontinence (1.3%) were detected during the follow-up period; Furthermore, three patients complained minor incontinence that was successfully treated by biofeedback and permacol injection into the internal anal sphincter. Conclusions This prospective audit demonstrates an high proportion of complex anal fistulae treated by seton placement that was the most common surgical technique adopted to treat our patients as a first line. Nevertheless, a good outcome was achieved in the majority of patients with a limited rate of faecal incontinence (6/247 = 2.4%). New technologies provide promising alternatives to traditional methods of management particularly in case of complex fistulas. There is, however, a real need for high-quality randomized control trials to evaluate the different surgical and non surgical treatment options.

2011-01-01

118

Fistula-in-Ano Complicated by Fournier's Gangrene Our Experience in North-Eastern Region of Nigeria  

PubMed Central

Background: Fistula-in-ano when complicated by Fournier's gangrene is an unusual finding and always carries high morbidity. This study details our experience in managing 10 cases. Methods of Study: Case files of all patients managed in University of Maiduguri Teaching Hospital and Federal Medical Center of Yola and Gombe from January, 2007 to December, 2011 were retrieved from Medical Record Departments and other Hospital Records. These were analyzed for demographic, clinical and pathological variables, the type of treatment and follow-up. Results: A total of 10 men with a mean age of 50.5 years (35-60) were managed in the period of study. Nearly, 50% of the patients were farmers, 30% businessmen and 20% were civil servant. 7 (70%) of these patients presented with Fournier's gangrene within 4 weeks of development of fistula-in-ano and the rest within 8 weeks. 4 (40%) of these patients had inadequate drainage of their perianal abscess and 2 (20%) had incision and drainage. Another 4 (40%) had spontaneously rupture of the perianal abscess. 6 (60%) of the fistula-in-ano was submuscular, 30% subcutaneous and 10% were complex or recurrent. Nearly, 20% of patients had fistulotomy and seton application for adequate drainage. Mucosal advancement flap was performed in 5 (50%) and fistulotomy in 3 (30%) patients. Another 30% had fistulotomy and continuing sitz bath. Conclusion: Cryptoglandular infection is an important cause of perianal abscesses and fistula-in-ano and if poorly managed results in Fournier's gangrene. Early broad spectrum parenteral antibiotic therapy and primary surgical treatment can prevent Fournier's gangrene.

Bakari, Abubakar A; Ali, Nuhu; Gadam, Ibrahim A; Gali, Bata M; Tahir, Chubado; Yawe, KDT; Dahiru, Adamu B; Mohammed, Baba S; Wadinga, Dauda

2013-01-01

119

H/V ratio in Athens and the strong motion at the Ano Liosia site during the 1999 Athens earthquake  

NASA Astrophysics Data System (ADS)

The damaging 1999 Athens earthquake of Mw=5.9 occurred at about 20km from the city center. The intensity distribution in the capital, ranging from V to IX, was quite irregular due to combination of the source, path and site effects. The 30-stations temporary network of the University of Patras, installed in the area of Attica for 50 days, recorded a significant part of the aftershock sequence. The aftershocks not only delineated the mainshock fault plane, but they also provided important site classification. The Horizontal-to-Vertical spectral ratio method was applied, and the most significant amplification (H/V exceeding 4 in the frequency range 1-4Hz) was found at the Ano Liosia site, belonging to the most heavily damaged zones with intensity IX. The site is situated in a shallow basin, whose surface extent is about 4x4 km, and the maximum depth is of about 150 m. Based on geological and geophysical data (Vp, Vs, Q) measured at the site, the numerical modeling of the seismic site response was carried out. The finite-differences technique was used for a 2D modeling, and significant edge effects were revealed, e.g. the amplification by a factor of 3, with respect to the outcropping bedrock. The 1D effects of the sediment layering, modeled by the matrix technique, would produce much weaker amplification, and simpler time history of the response. No recording of the mainshock is available from Ano Liosia. Nevertheless, based on the finite-extent source model validated by the existing strong motion records in Athens, we assume that the bedrock motion in Ano Liosia had its PGA ranging from 0.2 to 0.3 g, resulting from the relatively small epicentral distance (~ 10 km) and the forward source directivity (Serpetsidaki et al., session SM10). When combined with the above discussed site effect, the PGA values in Ano Liosia might locally exceed 0.6g.

Serpetsidaki, A.; Tselentis, G.-A.; Zahradnik, J.

2003-04-01

120

Treatment for Horseshoe Fistulas-In-Ano with Primary Closure of the Internal Fistula Opening: A Clinical and Manometric Study  

Microsoft Academic Search

INTRODUCTION We report on a patient cohort with dorsal horseshoe fistulas-in-ano. We sought to answer the question of whether these fistulas can be operatively treated, implementing a sphincter-preserving fistulectomy with primary closure of the internal opening, as is done when treating transsphincteric anal fistulas. Long-term clinical course is examined here and operative methods are discussed. METHODS During the time period

Andreas Koehler; Angelika Risse-Schaaf; Sotirios Athanasiadis

2004-01-01

121

Assessment and classification of fistula-in-ano in patients with Crohn's disease by hydrogen peroxide enhanced transanal ultrasound.  

PubMed

Crohn's disease is well known for its perianal complications, among which fistulas-in-ano are the most common abnormalities. Fistulas-in-ano in Crohn's disease tend to be complex and have a high recurrence rate. Therefore the role of surgery is generally more conservative. Hydrogen peroxide enhanced transanal ultrasound has proven superior to physical examination, fistulography, computed tomography, and conventional ultrasound in demonstrating the fistula tract. This study examined the fistula tracks in patients with Crohn's disease. Forty-one patients with Crohn's disease and fistula-in-ano were investigated using physical examination, sondage of the fistula, proctoscopy and transanal ultrasound. Hydrogen peroxide was infused via a small catheter into the fistula. The main track and the ramification of the fistula were classified according to the anatomical Parks' classification. Only 9 (22%) patients had a single inter- or transsphincteric fistula. In 5 (12%) patients a single supra- or extrasphincteric fistula (high fistula) was found, in 14 (34%) more than one fistula track (ramified), and in 13 (32%) an anovaginal fistula. Thus 78% of patients had a surgically difficult to treat fistula. In the ramified fistula the main track follows the Parks' classification, but ramifications can have a bizarre pattern which is not in agreement with this classification. Optimal documentation by means of hydrogen peroxide enhanced transanal ultrasound is therefore mandatory before surgery or before other therapies such as anti-tumor necrosis factor treatment. PMID:11686526

Sloots, C E; Felt-Bersma, R J; Poen, A C; Cuesta, M A; Meuwissen, S G

2001-09-01

122

Recent advances in the Lesser Antilles observatories Part 1 : Seismic Data Acquisition Design based on EarthWorm and SeisComP  

NASA Astrophysics Data System (ADS)

Lesser Antilles observatories are in charge of monitoring the volcanoes and earthquakes in the Eastern Caribbean region. During the past two years, our seismic networks have evolved toward a full digital technology. These changes, which include modern three components sensors, high dynamic range digitizers, high speed terrestrial and satellite telemetry, improve data quality but also increase the data flows to process and to store. Moreover, the generalization of data exchange to build a wide virtual seismic network around the Caribbean domain requires a great flexibility to provide and receive data flows in various formats. As many observatories, we have decided to use the most popular and robust open source data acquisition systems in use in today observatories community : EarthWorm and SeisComP. The first is renowned for its ability to process real time seismic data flows, with a high number of tunable modules (filters, triggers, automatic pickers, locators). The later is renowned for its ability to exchange seismic data using the international SEED standard (Standard for Exchange of Earthquake Data), either by producing archive files, or by managing output and input SEEDLink flows. French Antilles Seismological and Volcanological Observatories have chosen to take advantage of the best features of each software to design a new data flow scheme and to integrate it in our global observatory data management system, WebObs [Beauducel et al., 2004]1, see the companion paper (Part 2). We assigned the tasks to the different softwares, regarding their main abilities : - EarthWorm first performs the integration of data from different heterogeneous sources; - SeisComP takes all this homogeneous EarthWorm data flow, adds other sources and produces SEED archives and SEED data flow; - EarthWorm is then used again to process this clean and complete SEEDLink data flow, mainly producing triggers, automatic locations and alarms; - WebObs provides a friendly human interface, both to the administrator for station management, and to the regular user for real time everyday analysis of the seismic data (event classification database, location scripts, automatic shakemaps and regional catalog with associated hypocenter maps).

Saurel, Jean-Marie; Randriamora, Frdric; Bosson, Alexis; Kitou, Thierry; Vidal, Cyril; Bouin, Marie-Paule; de Chabalier, Jean-Bernard; Clouard, Valrie

2010-05-01

123

Predicting the occurrence of embolic events: an analysis of 1456 episodes of infective endocarditis from the Italian Study on Endocarditis (SEI)  

PubMed Central

Background Embolic events are a major cause of morbidity and mortality in patients with infective endocarditis. We analyzed the database of the prospective cohort study SEI in order to identify factors associated with the occurrence of embolic events and to develop a scoring system for the assessment of the risk of embolism. Methods We retrospectively analyzed 1456 episodes of infective endocarditis from the multicenter study SEI. Predictors of embolism were identified. Risk factors identified at multivariate analysis as predictive of embolism in left-sided endocarditis, were used for the development of a risk score: 1 point was assigned to each risk factor (total risk score range: minimum 0 points; maximum 2 points). Three categories were defined by the score: low (0 points), intermediate (1 point), or high risk (2 points); the probability of embolic events per risk category was calculated for each day on treatment (day 0 through day 30). Results There were 499 episodes of infective endocarditis (34%) that were complicated by???1 embolic event. Most embolic events occurred early in the clinical course (first week of therapy: 15.5 episodes per 1000 patient days; second week: 3.7 episodes per 1000 patient days). In the total cohort, the factors associated with the occurrence of embolism at multivariate analysis were prosthetic valve localization (odds ratio, 1.84), right-sided endocarditis (odds ratio, 3.93), Staphylococcus aureus etiology (odds ratio, 2.23) and vegetation size???13mm (odds ratio, 1.86). In left-sided endocarditis, Staphylococcus aureus etiology (odds ratio, 2.1) and vegetation size???13mm (odds ratio, 2.1) were independently associated with embolic events; the 30-day cumulative incidence of embolism varied with risk score category (low risk, 12%; intermediate risk, 25%; high risk, 38%; p?

2014-01-01

124

A study of the kinetics of lithium transport through the "solid electrolyte interphase" (SEI) that forms on carbons used in lithium-ion batteries  

NASA Astrophysics Data System (ADS)

One of the primary challenges facing the lithium-ion battery field is to increase the rates at which the cell can be charged and discharged. In particular, this thesis is concerned with the kinetics of lithium transport through the surface films that form on carbon in non-aqueous electrolyte. These surface films have often been described as a solid electrolyte interphase or "SEI". To investigate the morphology and physical properties of the surface films, in situ electrochemical atomic force microscopy (ECAFM) was used. The ECAFM experiments showed that the surface films are thicker than previously believed. Cyclic voltammetry (CV), potentiostatic intermittent titration technique (PITT), constant current cycling, and electrochemical impedance spectroscopy (EIS) experiments were used to investigate the kinetics of charging and discharging of fresh and cycled cells. These experiments showed that the kinetics of a fresh cell are limited by lithium diffusion in the bulk carbon. The kinetics of a cycled cell, however, are slower than that of a fresh cell due to an increased impedance of the surface films. A model is proposed to explain how the surface films are slowing the kinetics of lithium transport. Consequences of a high impedance surface film are discussed.

Chu, Andrew Chih-An

125

Estudo da evoluo dinmica fluvial dos rios do Amazonas com base em imagens de RADAR e satlite nos ltimos 30 anos, balano entre rea de eroso e deposio e possveis conseqncias para a ocupao humana  

Microsoft Academic Search

The Amazon region as resultant of geologic history and the climate, shelters a more extensive fluvial system and of bigger liquid mass of the Land. The analysis of products of remote sensing in the Amaznia is the technique that still persists as the main tool to assist in the execution of diverse scientific works. The agreement of the fluvial dynamics

Amaro Luiz Ferreira

126

SEI: Modern Physics Course Materials  

NSDL National Science Digital Library

This website contains lectures, homework, exams, and other materials for a PER-based large lecture modern physics course for engineering majors. This course has been transformed by radically changing both the content and the learning techniques implemented in lecture and homework. Traditionally this course has been taught in a manner similar to the equivalent course for physics majors, focusing on mathematical solutions of abstract problems. Based on interviews with physics and engineering professors, we developed a syllabus and learning goals focused on content that was more useful to our actual student population: engineering majors. The content of this course emphasized reasoning development, model building, and connections to real world applications. In addition we implemented a variety of PER-based learning techniques, including peer instruction, collaborative homework sessions, and interactive simulations. We have assessed the effectiveness of reforms in this course using pre/post surveys on both content and beliefs. We have found significant improvements in both content knowledge and beliefs compared with the same course before implementing these reforms and a corresponding course for physics majors.

Baily, Charles; Mckagan, Sam B.; Perkins, Katherine K.; Wieman, Carl E.

2007-03-16

127

Investigation of solid electrolyte interface (SEI) film on LiCoO2 cathode in fluoroethylene carbonate (FEC)-containing electrolyte by 2D correlation X-ray photoelectron spectroscopy (XPS)  

NASA Astrophysics Data System (ADS)

The effects of fluoroethylene carbonate (FEC) on the electrochemical performance of the LiCoO2 cathode were investigated by galvanostatic charge-discharge testing and cyclic voltammetry (CV). It was found that FEC has a positive effect on cycling stability and also improves cell performance. We also studied solid electrolyte interface (SEI) film on the LiCoO2 cathode, using X-ray photoelectron spectroscopy (XPS) and 2D correlation spectroscopy. The 2D correlation XPS spectra showed that, initially, the polyvinylidene fluoride (PVdF) binder and electrolyte components are decomposed, after which SEI components are formed on the LiCoO2 cathode surface. In the FEC-containing electrolyte, the polycarbonate components are more abundant than in the FEC-free electrolyte. The formed carbonates in SEI film can act as Li+-conducting materials in reducing the electrode/electrolyte interfacial impedance. This hypothesis is supported by the results of an electrochemical impedance spectrum (EIS) analysis.

Park, Yeonju; Shin, Su Hyun; Hwang, Hoon; Lee, Sung Man; Kim, Sung Phil; Choi, Hyun Chul; Jung, Young Mee

2014-07-01

128

[Morpho-functional evaluation of subjects who had undergone surgery for ano-rectal malformations using the Pea technique].  

PubMed

The approach to patients with Ano-Rectal Malformations (ARM) has undergone a substantial change in these last years due to the evolution of the studies of the anatomy and physiology carried out by Pea and de Vries. The authors report their experience on 15 patients and analyse the clinical and instrumental results according to the quality of life of the patients. There are different clinical criteria for the postoperative evaluation of these patients. The authors considered the Kelly, Kiesewetter, Pea and Holdschneider methods and compared the different values obtained. Moreover, they analysed the results of anorectal manometry performed in 10 patients and their correlations with clinical scores. The authors assert that the TC or NMR tests are unnecessary for these patients, since these methods demonstrate a correct position of the rectum within the muscular structure, but do not allow a correct evaluation of the quality of life of these patients. The clinical results obtained by the authors are satisfying; however, the number of patients is limited and the follow-up is relatively short. PMID:9432577

Cacciaguerra, S; Papale, A; Lentini, F; Di Benedetto, F; Gresta, S; Racalbuto, A; Di Benedetto, A

1997-09-01

129

Sindicalismo e luta por direitos sociais do trabalh o em Juiz de Fora nos conturbados anos dos governos provisrio e constitucional de Getlio Vargas (1930-1937)  

Microsoft Academic Search

Resumo: A decretao de um conjunto significativo de leis trabalhistas no incio de 1932 fez com que, nos anos seguintes, os dirigentes dos sindicatos re conhecidos desencadeassem variadas aes classistas em Juiz de Fora. Alm de procurar forar o empresar iado local a respeitar essa nova legislao social, reivindicavam das autoridades federais a aplicao efetiva e a ampliao dos benefcios

Lus Eduardo de Oliveira

130

Seismic structure of the main geological provinces off the SW Iberian margin: first results from the NEAREST-SEIS wide-angle seismic survey  

NASA Astrophysics Data System (ADS)

The region offshore the SW Iberian margin hosts the present-day NW-SE plate convergence between the European and African Plates at a rate of 4.5 mm/yr, fact that causes continuous seismic activity of moderate magnitude. In autumn 2008 a Spanish-French team carried out a refraction and wide-angle reflection seismic survey in the area (NEAREST-SEIS cruise), in the framework of the EU, FP6-funded NEAREST project. During the survey two long seismic profiles were acquired using a pool of 36 Ocean Bottom Seismometers (OBS), with the objectives of providing information about the geometry of the crust-mantle boundary and the physical properties of the crust, revealing the deep geometry of the main fault interfaces, and identifying the nature of the basement and the limits of the different geological provinces in the region. A total of 30 OBS were deployed along profile P1, which is 356 km long and trends NW-SE from the Tagus abyssal plain (TAP), crossing the Gorringe bank (GB), the Horseshoe abyssal plain (HAP) and the Coral Patch Ridge (CPR), up to the thrust-and-fold belt of the Seine abyssal plain (SAP). The acquired data were modeled by joint refraction and reflection travel time inversion, following a layer-stripping strategy. The inverted model show four well-differentiated domains in terms of its seismic structure: In the TAP a 3-4 km-thick, low velocity sedimentary layer covers the basement, which shows a remarkably high velocity (>7 km/s), similar to that of the basement outcropping in the Gorringe bank. In the HAP the sedimentary cover is thicker, showing an upper unit with low velocity corresponding to the Horseshoe gravitational unit, on top of a higher velocity lower unit, which may represent the highly consolidated Mesozoic sedimentary sequence. The thickness of the two units together exceeds 5 km. The basement shows the same velocity distribution as in TAP and GB, suggesting a common nature and origin. According to its seismic structure, and considering that there is no evidence for the presence of a basal reflector (e.g. Moho) in the record sections, we interpret this basement as highly serpentinized, exhumed mantle. In contrast, the CPR and SAP show evidences for the presence of a well-developed, 6-7 km-thick oceanic crust, underlying the 2-3 km-thick, moderate velocity, Mesozoic sedimentary sequence. Profile P2 is 256 km long, and trends S-N from the easternmost SAP beyond the NW Moroccan margin, crossing the Gulf of Cadiz imbricated wedge and the Portimao bank ending at the Iberian margin shelf. 15 OBS and 7 land-stations were deployed along this profile, and the recorded data were modeled following the same approach and strategy as for P1. The inverted model shows two main domains: In the southern half, there is a 3-4 km-thick cover of low velocity sediments, which represents the western edge of the sedimentary wedge that covers the internal Gulf of Cadiz, overlying a 7-8 km-thick oceanic crust. According to recent tectonic reconstructions, this crustal segment should have been emplaced there during the early phase of continental spreading between Iberia and Africa, in the context of Mesozoic Atlantic spreading. The northern part of P2 displays a relatively sharp ocean-continent transition zone concentrated in a ~50 km-wide band, that ends with the ~30 km-thick continental crust of the SW Iberian shelf.

Sallars, Valent; Martnez-Loriente, Sara; Gailler, Audrey; Bartolom, Rafael; Gutscher, Marc-Andr; Graindorge, David; Lia Grcia, Eul; Daz, Jordi

2010-05-01

131

Crustal nature and seismic structure of the geological provinces offshore the SW Iberia: Highlights of the NEAREST-SEIS wide-angle seismic survey  

NASA Astrophysics Data System (ADS)

The SW Iberian margin hosts the present day NW-SE plate convergence between the European and African Plates at a rate of 4.5 mm/yr causing seismic activity of moderate magnitude. During fall 2008 and in the frame of the EU-funded NEAREST project, was carried out a wide-angle seismic survey (NEAREST-SEIS cruise) consisting in 2 profiles. The main objectives of the survey were to gather information about the geometry of the crust-mantle boundary, identify the nature of the different geological provinces, obtain the physical properties of the crust, and unveil the deep geometry of the interfaces between main faults. A total of 30 OBS were deployed along profile P1, which is 356 km long and trends NW-SE running from the Tagus Abyssal Plain (TAP), Gorringe Bank (GB), Horseshoe Abyssal Plain (HAP), Coral Patch Ridge (CPR), and finally reaching the thrust-and-fold belt of the Seine Abyssal Plain (SAP). The inverted model shows four well-differentiated domains in terms of seismic structure. In the TAP there is a 3-4 km-thick sediment layer with low velocity, lying above a basement showing a remarkably high velocity (< 7 km/s), similar to that of the basement outcropping in the GB. In the HAP the sedimentary cover is thicker, showing an uppermost unit with very low velocity corresponding to the Upper Miocene Horseshoe Gravitational Unit, on top of a higher velocity lower unit, which corresponds to the Mesozoic sedimentary sequence, with a total thickness of 5 km. The basement shows the same velocity distribution as in TAP and GB, suggesting a common nature and origin. According to its seismic structure, we interpret this basement as very serpentinized, exhumed upper mantle. In contrast, the CPR and SAP show evidence for the presence of a well-developed, 6-7 km-thick oceanic crust, underlying the 2-3 km thick Mesozoic and Neogene sedimentary sequence. Profile P2 is 256 km long and trends N-S, across the Iberian margin shelf, Portimao Bank, Gulf of Cadiz imbricated wedge and ending at easternmost SAP beyond the NW Moroccan margin. A total of 15 OBS and 7 land-stations were deployed along this profile. The inverted model shows three domains. The northern part is characterized by a ~30 km thick continental crust, corresponding to the continental Variscan basement. In the central part, there is a 60 km-wide transition zone, where the crust abruptly thins to ~20 km. On its southern half, we identified a ~4 km-thick pile of low velocity unconsolidated sediments, corresponding to the Upper Miocene Gulf of Cadiz sedimentary wedge, overlying a 1-3 km-thick section of Mesozoic to Eocene sediments, and a 7-8 km-thick old, oceanic crust. According to tectonic reconstructions, this band of oceanic crust should have been emplaced during the early phases of seafloor spreading between Iberia and Nubia plates (Jurassic age).

Martnez-Loriente, S.; Sallares, V.; Gailler, A.; Bartolome, R.; Gracia, E.; Gutscher, M.; Diaz, J.

2011-12-01

132

Seismic structure and crustal nature of the geological provinces off the SW Iberian margin: results of the NEAREST-SEIS wide-angle seismic survey  

NASA Astrophysics Data System (ADS)

The region offshore the SW Iberian margin hosts the present-day NW-SE plate convergence between the European and African Plates causing continuous seismic activity of moderate magnitude. In autumn 2008 a Spanish-French team carried out a wide-angle seismic survey in the area (NEAREST-SEIS cruise), in the framework of the EU-funded NEAREST project. During the survey two long profiles were acquired using a pool of 36 Ocean Bottom Seismometers (OBS), to provide information about the crustal structure and nature of the different geological provinces, and to reveal the deep geometry of the main fault interfaces. A total of 30 OBS were deployed along profile P1, which is 356 km long and trends NW-SE from the Tagus abyssal plain (TAP), crossing the Gorringe bank (GB), the Horseshoe abyssal plain (HAP) and the Coral Patch Ridge (CPR), up to the thrust-and-fold belt of the Seine abyssal plain (SAP). The inverted model along this profile show four different domains. In the TAP a 3-4 km-thick, low velocity sedimentary layer covers the basement, which shows a velocity >7 km/s just 2-3 km below its top, similarly to that of the basement outcropping in the Gorringe bank. In the HAP the sedimentary cover is thicker, showing an upper unit with low velocity corresponding to the Horseshoe gravitational unit, on top of a higher velocity lower unit, which may represent the highly consolidated Mesozoic sedimentary sequence, with a total thickness of 5 km. The basement shows the same velocity distribution as in TAP and GB, suggesting a common nature and origin. According to its seismic structure, we interpret this basement as highly serpentinized, exhumed mantle. In contrast, the CPR and SAP show evidences for the presence of a well-developed, 6-7 km-thick oceanic crust, underlying the sedimentary sequence. Profile P2 is 256 km long, and trends S-N from the easternmost SAP beyond the NW Moroccan margin, crossing the Gulf of Cadiz imbricated wedge and the Portimao bank ending at the Iberian margin shelf. 15 OBS and 7 land-stations were deployed along this profile. The inverted model shows two main domains: In the southern half, there is a 3-4 km-thick cover of low velocity sediments, which represents the western edge of the wedge that covers the internal Gulf of Cadiz, overlying a 7-8 km-thick oceanic crust. According to recent tectonic reconstructions, this crustal segment should have been emplaced there during the early phase of continental spreading between Iberia and Africa, in the context of Mesozoic Atlantic spreading. The northern part of P2 displays a relatively sharp ocean-continent transition zone concentrated in a 50 km-wide band, that ends with the 30 km-thick continental crust of the SW Iberian shelf.

Sallares, V.; Martinez, S.; Gailler, A.; Gutscher, M.; Bartolome, R.; Gracia, E.; Diaz, J.

2010-12-01

133

The reactions of para-halo diaryl diselenides with halogens. A structural investigation of the CT compound (p-FC6H4)2Se2I2, and the first reported RSeI3 compound, (p-ClC6H4)SeII2, which contains a covalent Se-I bond.  

PubMed

The reactions of the diaryl-diselenides (p-FC(6)H(4))(2)Se(2) and (p-ClC(6)H(4))(2)Se(2) with diiodine have been investigated. Species of stoichiometry "RSeI" are formed when the ratio employed is 1:1. The solid-state structure of "(p-FC(6)H(4))SeI" has been determined, and shown to be a charge-transfer (CT) adduct, (p-FC(6)H(4))(2)Se(2)I(2), where the Se-Se bond is retained and the diiodine molecule interacts with only one of the selenium atoms. The Se-I bond in (p-FC(6)H(4))(2)Se(2)I(2) is 2.9835(12) , which is typical for a (10-I-2) Se-I-I CT system. When diiodine is reacted in a 3:1 ratio with (p-XC(6)H(4))(2)Se(2) (X = F, Cl) species of stoichiometry "RSeI(3)" are formed. The structure of "(p-ClC(6)H(4))SeI(3)" reveals that this is not a selenium(IV) compound, but is better represented as a selenium(II) CT adduct, (p-ClC(6)H(4))SeII(2). The Se-I bond to the diiodine molecule is typical in magnitude for a CT adduct, Se-I: 2.8672(5) , whereas the other Se-I bond is much shorter, Se-I: 2.5590(6) , and is a genuine example of a rarely observed covalent Se-I bond, which appears to be stabilised by a weak SeI interaction from a neighbouring iodine atom. The reaction of (p-ClC(6)H(4))SeI with Ph(3)P results in the formation of a CT adduct, Ph(3)PSe(p-ClC(6)H(4))I, which has a T-shaped geometry at selenium (10-Se-3). By contrast, the reaction of (p-FC(6)H(4))SeI with Ph(3)P does not form an adduct, but results in the formation of Ph(3)PI(2) and (p-FC(6)H(4))(2)Se(2). PMID:23229685

Barnes, Nicholas A; Godfrey, Stephen M; Hughes, Jill; Khan, Rana Z; Mushtaq, Imrana; Ollerenshaw, Ruth T A; Pritchard, Robin G; Sarwar, Shamsa

2013-02-28

134

Anal fistula plug vs mucosa advancement flap in complex fistula-in-ano: A meta-analysis  

PubMed Central

AIM: To investigate the efficacy of the anal fistula plug (AFP) compared to the mucosa advancement flap (MAF), considered the best procedure for patients with a complex anal fistula. METHODS: The literature search included PubMed, EMBASE, Cochrane Library and OVID original studies on the topic of AFP compared to MAF for complex fistula-in-ano that had a deadline for publication by April 2011. Randomized controlled trials, controlled clinical trials and prospective cohort studies were included in the review. After information collection, a meta-analysis was performed using data on overall success rates as well as incidence of incontinence and morbidity. The quality of postoperative life was also included with the clinical results. RESULTS: Six studies involving 408 patients (AFP = 167, MAF = 241) were included in the meta-analysis. The differences in the overall success rates and incidence of fistula recurrence were not statistically significant between the AFP and MAF [risk difference (RD) = -0.12, 95%CI: -0.39 - 0.14; RD = 0.13; 95%CI: -0.18 - 0.43, respectively]. However, for the AFP, the risk of postoperative impaired continence was lower (RD = -0.08, 95%CI: -0.15 - -0.02) as was the incidence of other complications (RD = -0.06, 95%CI: -0.11 - -0.00). The postoperative quality of life, for patients treated using the AFP was superior to that of the MAF patients. Patients treated with the AFP had less persistent pain of a shorter duration and the healing time of the fistula and hospital stay were also reduced. CONCLUSION: The AFP is an effective procedure for patients with a complex anal fistula; it has the same success rate but a lower risk of complications than the MAF and may also be associated with an improved postoperative quality of life. Additional evidence is needed to confirm these findings.

Leng, Qiang; Jin, Hei-Ying

2012-01-01

135

Montagem e Resultados Preliminares de Aparato Experimental para Estudo Trmico de Materiais Ablativos  

Microsoft Academic Search

O estudo do fenmeno fsico de ablao, que ocorre em determinados materiais usados em sistemas de proteo trmica de satlites, bem como a caracterizao das propriedades trmicas dos mesmos so considerados de grande importncia, por representar um ponto estratgico para a tecnologia espacial. No Brasil, os estudos de materiais ablativos tm sido realizados dentro da perspectiva do Programa Nacional de

Gabriel Antnio de Souza Jnior; Lucas Mello de Campos Arruda; Walber Ferreira Braga; Mrcia Barbosa; Henriques Mantelli

136

Increased motor unit fibre density in the external anal sphincter muscle in ano-rectal incontinence: a single fibre EMG study  

Microsoft Academic Search

The motor unit fibre density in the external anal sphincter muscle has been measured in 13 normal subjects aged 18 to 78 years, and in 14 patients with ano-rectal incontinence, aged 17 to 72 years. The mean fibre density in the normal subjects was 1.5 +\\/- 0.16, and in the incontinent subjects it was 2.17 +\\/- 0.28 (p less than

M E Neill; M Swash

1980-01-01

137

Potassium and ANO1/TMEM16A chloride channel profiles distinguish atypical and typical smooth muscle cells from interstitial cells in the mouse renal pelvis  

PubMed Central

BACKGROUND AND PURPOSE Although atypical smooth muscle cells (SMCs) in the proximal renal pelvis are thought to generate the pacemaker signals that drive pyeloureteric peristalsis, their location and electrical properties remain obscure. EXPERIMENTAL APPROACH Standard patch clamp, intracellular microelectrode and immunohistochemistry techniques were used. To unequivocally identify SMCs, transgenic mice with enhanced yellow fluorescent protein (eYFP) expressed in cells containing ?-smooth muscle actin (?-SMA) were sometimes used. KEY RESULTS Atypical SMCs were distinguished from typical SMCs by the absence of both a transient 4-aminopyridine-sensitive K+ current (IKA) and spontaneous transient outward currents (STOCs) upon the opening of large-conductance Ca2+-activated K+ (BK) channels. Many typical SMCs displayed a slowly activating, slowly decaying Cl- current blocked by niflumic acid (NFA). Immunostaining for KV4.3 and ANO1/ TMEM16A Cl- channel subunits co-localized with ?-SMA immunoreactive product predominately in the distal renal pelvis. Atypical SMCs fired spontaneous inward currents that were either selective for Cl- and blocked by NFA, or cation-selective and blocked by La3+. ?-SMA- interstitial cells (ICs) were distinguished by the presence of a Xe991-sensitive KV7 current, BK channel STOCs and Cl- selective, NFA-sensitive spontaneous transient inward currents (STICs). Intense ANO1/ TMEM16A and KV7.5 immunostaining was present in Kit-?-SMA- ICs in the suburothelial and adventitial regions of the renal pelvis. CONCLUSIONS AND IMPLICATIONS We conclude that KV4.3+?-SMA+ SMCs are typical SMCs that facilitate muscle wall contraction, that ANO1/ TMEM16A and KV7.5 immunoreactivity may be selective markers of Kit- ICs and that atypical SMCs which discharge spontaneous inward currents are the pelviureteric pacemakers.

Iqbal, Javed; Tonta, Mary A; Mitsui, Retsu; Li, Qun; Kett, Michelle; Li, Jinhua; Parkington, Helena C; Hashitani, Hikaru; Lang, Richard J

2012-01-01

138

Non-sphincter splitting fistulectomy vs conventional fistulotomy for high trans-sphincteric fistula-in-ano: a prospective functional and manometric study  

Microsoft Academic Search

PurposeThis study compared the clinical and physiological results of non-sphincter splitting fistulectomy (N-SSF) with those of sphincter\\u000a splitting fistulotomy (SSF) for treatment of high trans-sphincteric fistula-in-ano.\\u000a \\u000a \\u000a \\u000a Materials and methodsA prospective, observational study was undertaken in 70 consecutive patients with high trans-sphincteric fistula treated by\\u000a SSF (n?=?35) or N-SSF (n?=?35). Anal manometry was performed before and 3months after surgery. Anal continence

Takayuki Toyonaga; Makoto Matsushima; Yoshiaki Tanaka; Kazunori Suzuki; Nobuhito Sogawa; Hiroki Kanyama; Yasuhiro Shimojima; Tomoaki Hatakeyama; Masao Tanaka

2007-01-01

139

As relaes da Revista Estudos Feministas com os movimentos de mulheres  

Microsoft Academic Search

R R R R Resumo esumo esumo esumo esumo: Este artigo tem como objetivo refletir sobre o dilogo da REF, nesses ltimos 15 anos, com os movimentos de mulheres no Brasil. Recupera os temas dos diversos dossis que, em grande medida, focaram temticas de extrema relevncia e atualidade para a agenda poltica do feminismo. Resgata alguns desses dossis como exemplos

Leila Linhares Barsted

2008-01-01

140

Targeted Next-Generation Sequencing of a 12.5 Mb Homozygous Region Reveals ANO10 Mutations in Patients with Autosomal-Recessive Cerebellar Ataxia  

PubMed Central

Autosomal-recessive cerebellar ataxias comprise a clinically and genetically heterogeneous group of neurodegenerative disorders. In contrast to their dominant counterparts, unraveling the molecular background of these ataxias has proven to be more complicated and the currently known mutations provide incomplete coverage for genotyping of patients. By combining SNP array-based linkage analysis and targeted resequencing of relevant sequences in the linkage interval with the use of next-generation sequencing technology, we identified a mutation in a gene and have shown its association with autosomal-recessive cerebellar ataxia. In a Dutch consanguineous family with three affected siblings a homozygous 12.5 Mb region on chromosome 3 was targeted by array-based sequence capture. Prioritization of all detected sequence variants led to four candidate genes, one of which contained a variant with a high base pair conservation score (phyloP score: 5.26). This variant was a leucine-to-arginine substitution in the DUF 590 domain of a 16K transmembrane protein, a putative calcium-activated chloride channel encoded by anoctamin 10 (ANO10). The analysis of ANO10 by Sanger sequencing revealed three additional mutations: a homozygous mutation (c.1150_1151del [p.Leu384fs]) in a Serbian family and a compound-heterozygous splice-site mutation (c.1476+1G>T) and a frameshift mutation (c.1604del [p.Leu535X]) in a French family. This illustrates the power of using initial homozygosity mapping with next-generation sequencing technology to identify genes involved in autosomal-recessive diseases. Moreover, identifying a putative calcium-dependent chloride channel involved in cerebellar ataxia adds another pathway to the list of pathophysiological mechanisms that may cause cerebellar ataxia.

Vermeer, Sascha; Hoischen, Alexander; Meijer, Rowdy P.P.; Gilissen, Christian; Neveling, Kornelia; Wieskamp, Nienke; de Brouwer, Arjan; Koenig, Michel; Anheim, Mathieu; Assoum, Mirna; Drouot, Nathalie; Todorovic, Slobodanka; Milic-Rasic, Vedrana; Lochmuller, Hanns; Stevanin, Giovanni; Goizet, Cyril; David, Albert; Durr, Alexandra; Brice, Alexis; Kremer, Berry; van de Warrenburg, Bart P.C.; Schijvenaars, Mascha M.V.A.P.; Heister, Angelien; Kwint, Michael; Arts, Peer; van der Wijst, Jenny; Veltman, Joris; Kamsteeg, Erik-Jan; Scheffer, Hans; Knoers, Nine

2010-01-01

141

CFTR and Anoctamin 1 (ANO1) contribute to cAMP amplified exocytosis and insulin secretion in human and murine pancreatic beta-cells  

PubMed Central

Background Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene lead to the disease cystic fibrosis (CF). Although patients with CF often have disturbances in glucose metabolism including impaired insulin release, no previous studies have tested the hypothesis that CFTR has a biological function in pancreatic beta-cells. Methods Experiments were performed on islets and single beta-cells from human donors and NMRI-mice. Detection of CFTR was investigated using PCR and confocal microscopy. Effects on insulin secretion were measured with radioimmunoassay (RIA). The patch-clamp technique was used to measure ion channel currents and calcium-dependent exocytosis (as changes in membrane capacitance) on single cells with high temporal resolution. Analysis of ultrastructure was done on transmission electron microscopy (TEM) images. Results We detected the presence of CFTR and measured a small CFTR conductance in both human and mouse beta-cells. The augmentation of insulin secretion at 16.7mM glucose by activation of CFTR by cAMP (forskolin (FSK) or GLP-1) was significantly inhibited when CFTR antagonists (GlyH-101 and/or CFTRinh-172) were added. Likewise, capacitance measurements demonstrated reduced cAMP-dependent exocytosis upon CFTR-inhibition, concomitant with a decreased number of docked insulin granules. Finally, our studies demonstrate that CFTR act upstream of the chloride channel Anoctamin 1 (ANO1; TMEM16A) in the regulation of cAMP- and glucose-stimulated insulin secretion. Conclusion Our work demonstrates a novel function for CFTR as a regulator of pancreatic beta-cell insulin secretion and exocytosis, and put forward a role for CFTR as regulator of ANO1 and downstream priming of insulin granules prior to fusion and release of insulin. The pronounced regulatory effect of CFTR on insulin secretion is consistent with impaired insulin secretion in patients with CF.

2014-01-01

142

Via de parto em gestaes sucessivas em adolescentes: estudo de 714 casos  

Microsoft Academic Search

Objetivo: analisar a associao da via de partos consecutivos de 714 gestantes adolescentes, que pariram na Maternidade do Hospital das Clnicas da Universidade Federal de Pernambuco, no perodo de janeiro a dezembro de 2001. Pacientes e Mtodos: em estudo prospectivo, analtico, transversal, tipo incidncia, foi analisada a sucesso das vias de parto da primeira at a quarta gestao de 714

Vamberto Oliveira de Azevedo Maia; Alessandra Costa de Azevedo Maia; Fbio Lima Queiroga; Vamberto Oliveira de Azevedo Maia Filho; Aline Brando de Arajo; Lus Andr Marinho Lippo; Rivaldo Mendes de Albuquerque

2004-01-01

143

Um Estudo sobre Tcnicas de Aprendizado de Mquina aplicadas Minerao de Dados  

Microsoft Academic Search

This paper presents a comparative study between the application of Artificial Neural Networks and the k-Means algorithm, for Data Mining. Such machine learning techniques are used as tools for data classification and clustering. The database used treats on a psychological experiment that analyses the human behavior based in a scale. Resumo. Este artigo apresenta um estudo comparativo entre a aplicao

Maicon de Brito; Denise Regina Pechmann

2007-01-01

144

Evoluo do estado nutricional de crianas com mielomeningocele em perodo de trs anos Tree-year period evolution of the nutritional condition of children with mielomeningocelis Evolucin en tres aos de la condicin nutricional de nios con mielomeningocele  

Microsoft Academic Search

RESumo: O presente manuscrito teve o objetivo de descrever e classificar o perfil antropomtrico, de forma longitudinal, de um grupo de crianas com mielomeningocele inserido em um programa especial de atividades fsicas. Vinte e quatro crianas com mielomeningocele foram avaliada em trs momentos, com intervalo de um ano entre os mesmos. Foram avaliados: peso, comprimento, e calculado o IMC (ndice

Cynthia Mller Coelho; Elizabeth Miyeko Egashira; Regina Clia da Silva; Sandra Maria Lima Ribeiro

147

Programa de tratamento assertivo na comunidade (PACT) e gerenciamento de casos (case management): reviso de 20 anos da literatura Program for Assertive Community Treatment (PACT) and Case Management: review of 20 years of literature  

Microsoft Academic Search

r esumo o bjetivo: Realizar uma reviso de estudos sobre programa de tratamento assertivo na comunidade (PACT) e case management para verificar se os resultados demonstram des - fechos mais favorveis quando tais modelos so implementados na rede comunitria de assistncia para portadores de doena mental grave e persistente. mtodos: A coleta de artigos - publicados entre 1985 e 2005

Louise de Frana Machado; Catarina Magalhes Dahl; Maria Ceclia de; Arajo Carvalho; Maria Tavares Cavalcanti

148

Obstculos e potencialidades competitividade das MPEs de calados da Paraba- um estudo da cooperao do aprendizado e da inovao  

Microsoft Academic Search

O objetivo deste trabalho avaliar os obstculos e potencialidades das micro e pequenas empresas da Paraba, atravs do estudo da cooperao, aprendizado e inovao. Essas empresas esto concentradas espacialmente nos Arranjos Produtivos Locais (APLs) de Campina Grande e de Patos, onde h uma diversidade de atores pblicos e privados, alm de uma base institucional relevante. Para tanto, utilizou-se um

Janaina da Silva Alves

149

RESDUOS DAS INDSTRIAS MADEIREIRAS: UM ESTUDO DE CASO NAS SERRARIAS DE RIO BRANCO - ACRE 1 Lumber Industry Residues: A Case Study of Rio Branco-Acre Sawmills  

Microsoft Academic Search

Resumo: Este estudo aborda o setor madeireiro no municpio de Rio Branco-Acre. Os objetivos gerais foram levantar e discutir informaes sobre os res duos gerados nas serrarias de Rio Branco, especificamente naqueles localizadas no distrito industrial, com o intuito de subsidiar o planejamento das serrarias quanto ao gerenciamento dos resduos. Neste contexto, o estudo visou, de forma especfica: 1) a

Suelem Marina de Arajo; Rosana Cavalcante dos Santos

150

Estudo espectral em raios-X duros de fontes do tipo Z com o HEXTE/RXTE  

NASA Astrophysics Data System (ADS)

Apresentam-se os resultados de um estudo espectral em raios-X de fontes do tipo Z. As fontes do tipo Z so binrias de raios-X de baixa massa (BXBM) com campo magntico intermedirio (B~109G). Esta classe de fontes composta por apenas 6 fontes Galcticas (a saber: ScoX-1, 9, 7, CygX-2, 5 e 0). A nossa anlise se concentra na faixa de raios-X duros (E ~ 20keV), at cerca de 200keV, faixa tima de operao do telescpio "High Energy X-ray Timing Experiment" (HEXTE), um dos trs telescpios de raios-X bordo do Rossi X-ray Timing Explorer (RXTE). Nossa motivao para tal estudo, uma busca de caudas em raios-X duros em fontes do tipo Z, foi o pouco conhecimento sobre a emisso nesta faixa de energia das referidas fontes quando comparadas, por exemplo, as fontes do tipo atoll (tambm BXBM). Apresentam-se a anlise/reduo de dados e explicita-se a maneira como o HEXTE mede o ru1do de fundo. Especial ateno direcionada a este item devido a localizao das fontes do tipo Z e tambm ao problema de contaminao por fontes prximas. Com exceo de ScoX-1, nenhuma cauda em raios-X duros foi encontrada para as outras fontes, a despeito de resultados de deteco dessas caudas em algumas fontes pelo satlite BeppoSAX. As interpretaes deste resultado sero apresentadas. Do ponto de vista deste estudo, ns deduzimos que a produo de caudas de raios-X duros em fontes do tipo Z um processo disparado quando, pelo menos, uma condio satisfeita: o brilho da componente trmica do espectro precisa estar acima de um certo valor limiar de ~41036ergs-1.

D'Amico, F.; Heindl, W. A.; Rothschild, R. E.

2003-08-01

151

Watts New Collection: Columns by the SEI's Watts Humphrey.  

National Technical Information Service (NTIS)

Since June 1998, Watts Humphrey has taken readers on a process- improvement journey, step by step, in his column 'Watts New.' The column has explored the problem of setting impossible dates for project completion, planning as a team using TSP, the importa...

W. S. Humphrey

2009-01-01

152

Camus: A Collection of Critical Essays. Twentieth Century Views Seies.  

ERIC Educational Resources Information Center

One of a series of works aimed at presenting contemporary critical opinion on major authors, this collection includes essays by Germaine Bree, Nicola Chairmonte, Serge Doubrovsky, Justin O'Brien, Wilfrid Sheed, Roger Quilliot, Thomas L. Hanna, Bernard C. Murchland, Henri Peyre, S. Beynon John, Rachel Bespaloff, Jean-Paul Sartre, Robert Champigny,

Bree, Germaine, Ed.

153

SEI: Junior E&M I Course Materials - Homework  

NSDL National Science Digital Library

This homework question collection was constructed over the course of four semesters of a transformed junior-level Electricity and Magnetism course on electro- and magneto-statics. Many questions are related to textbook problems, but with added elements of explanation, sense-making, estimation or approximation, real-world connections, and multiple-representations. Not all these homework questions were used in the course design project. Some problems used include detailed instructor notes, including statistics on student performance on each homework problem assigned. The homework solutions are only available to instructors by writing the authors, Steven.Pollock@colorado.edu This material was developed as part of a education research-based course transformation for junior level E&M. All of the resources developed for this course are available, sorted by individual topic and type, at http://www.compadre.org/psrc/items/Relations.cfm?ID=7891.

Pollock, Steven J.; Chasteen, Stephanie V.

2010-06-10

154

SEI Vojany Station Repowering Reconstruction Assessment Feasibility Study. Volume 2.  

National Technical Information Service (NTIS)

Six technologies are considered for application to the proposed Vojany Power Station EVO III. These technologies are: Conventional pulverized coal (PC) with SOx and NOx control; Atmospheric circulating fluidized bed (CFB); Atmospheric bubbling fluidized b...

1992-01-01

155

SEI: Classical Mechanics/Math Methods I: Course Materials  

NSDL National Science Digital Library

This website provides the materials to teach a transformed sophomore-level classical mechanics/math methods course. The provided course is the first semester of a two-semester sequence at the University of Colorado, Boulder. Math Contexts: * Vectors, curvilinear coordinate systems, ODEs, Line integrals, Gradient operator, Taylor expansion, Complex numbers, Fourier transforms, Fourier series and applications, PDEs, Separation of variables, Surface and volume integrals, Gauss' theorem, Legendre polynomials, Laplace equation, Delta functions Physics Contexts: * Kinematics, Newton's Laws, Conservation Laws, Simple harmonic oscillator, Heat equation, Poisson equation, Gravitation The course was transformed using: * Explicit Learning Goals * Interactive Lectures * Transformed Homework problems (including a "bank" of potential HW problems) * Common Student Difficulties & In-Class Group Activities/Tutorials * Concept Tests ("Clicker" questions) * Assessments (available upon explicit request)

Pollock, Steven J.

2012-04-26

156

SEI: Junior E&M Course Materials - Electrostatics  

NSDL National Science Digital Library

This is a collection of resources for teaching electrostatics constructed over the course of four semesters of a transformed junior-level Electricity and Magnetism course. Included are homework questions, concept tests, student tutorials, lecture notes, and information about common student difficulties in the topic and ways to address these difficulties. This material was developed as part of a education research-based course transformation for junior level E&M. All of the resources developed for this course are available, sorted by individual topic and type, at http://www.compadre.org/psrc/items/Relations.cfm?ID=7891.

Pollock, Steven J.; Chasteen, Stephanie V.

2010-06-29

157

SEI Report on Graduate Software Engineering Education for 1991.  

National Technical Information Service (NTIS)

This report on graduate software engineering education presents a variety of information for university educators interested in establishing a software engineering program. This includes a model curriculum, an annotated bibliography of software engineerin...

G. Ford

1991-01-01

158

SEI: Junior E&M I Course Materials - Math Fundamentals  

NSDL National Science Digital Library

This is a collection of resources for teaching mathematical fundamentals of electro- and magnetostatics constructed over the course of four semesters of a transformed junior-level Electricity and Magnetism course. Included are homework questions, concept tests, and information about common student difficulties in the topic and ways to address these difficulties. This material was developed as part of a education research-based course transformation for junior level E&M. All of the resources developed for this course are available, sorted by individual topic and type, at http://www.compadre.org/psrc/items/Relations.cfm?ID=7891.

Pollock, Steven J.; Chasteen, Stephanie V.

2010-06-29

159

United view on ISO 9001 model and SEI CMM  

Microsoft Academic Search

The current activities of organizations are marked with awareness of importance of quality improvement management. The end product quality assurance is not efficient enough. The quality should be introduced during the whole product development process. In this paper, the two models for software process quality improvement, the ISO 9001 (Quality Systems Model for quality assurance in design\\/development, production, installation, and

I. Rozman; R. Vajde Horvat; J. Gyorkos

1994-01-01

160

SEI: Junior E&M I Course Materials - Student Difficulties  

NSDL National Science Digital Library

This is a collection of student difficulties identified in a junior-level Electricity and Magnetism course during four semesters of a curriculum transformation project. These resource documents present the research findings of this project that resulted from: interviews with students using think-aloud protocol as they worked through problems or diagrammed their understanding using concept maps; observations during help sessions and tutorials; student questions during lecture; student performance on concept tests / clicker questions; student performance on homework and exams; and student performance on the conceptual assessment developed for the course. In addition to student difficulties, these documents include the learning goals associated with each topic and class activities developed by other institutions to address that topic. Those who wish to learn more about these activities activities should steven.pollock@colorado.edu. This material was developed as part of a education research-based course transformation for junior level E&M. All of the resources developed for this course are available, sorted by individual topic and type, at http://www.compadre.org/psrc/items/Relations.cfm?ID=7891.

Pollock, Steven J.; Chasteen, Stephanie V.; Kinney, Edward; Dubson, Michael

2010-06-10

161

SEI rover solar-electrochemical power system options  

NASA Technical Reports Server (NTRS)

A trade study of power system technology for proposed lunar vehicles and servicers is presented. A variety of solar-based power systems were selected and analyzed for each. The analysis determined the power system mass, volume, and deployed area. A comparison was made between periodic refueling/recharging systems and onboard power systems to determine the most practical system. The trade study concluded that the power system significantly impacts the physical characteristics of the vehicle. The refueling/recharging systems were lighter and more compact, but dependent on availability of established lunar base infrastructure. Onboard power systems pay a mass penalty for being fully developed systems.

Withrow, Colleen A.; Kohout, Lisa L.; Bents, David J.; Colozza, Anthony J.

1991-01-01

162

The ExoMars-Humbold Payload SEIS Experiment  

NASA Astrophysics Data System (ADS)

The ExoMars Seismometer is one of the major instruments of the Humbold payload on board the next ESA Mars mission "Exomars." It will study of the seismic activity of the red planet and will allow the evaluation at the frequency of meteorite impacts.

Mimoun, D.; Lognonne, P.; Gagnepain-Beyneix, J.; Giardini, D.; Mance, D.; Zweifel, P.; Pike, T.; Calcutt, S.; Christensen, U.; Roll, R.; van den Berg, A.; Smit, J. M.; Selig, A.; Schibler, P.; Nebut, T.; Gabsi, T.; Tillier, S.; Robert, O.; Pot, O.; Anglad

2008-03-01

163

Laser photovoltaic power system synergy for SEI applications  

NASA Technical Reports Server (NTRS)

Solar arrays can provide reliable space power, but do not operate when there is no solar energy. Photovoltaic arrays can also convert laser energy with high efficiency. One proposal to reduce the required mass of energy storage required is to illuminate the photovoltaic arrays by a ground laser system. It is proposed to locate large lasers on cloud-free sites at one or more ground locations, and use large lenses or mirrors with adaptive optical correction to reduce the beam spread due to diffraction or atmospheric turbulence. During the eclipse periods or lunar night, the lasers illuminate the solar arrays to a level sufficient to provide operating power.

Landis, Geoffrey A.; Hickman, J. M.

1991-01-01

164

Application of reusable software components at the SEI  

NASA Technical Reports Server (NTRS)

Robert Holibaugh of the Software Engineering Institute described a project which is studying the application of reusable software components. The primary goals are to gain practical experience with state-of-the-art reusable components, methods, and tools and to capture the lessons learned in the application of reuse technology. In addition the project will assess the impact of reuse on the software development process and products and will identify and validate the information that facilities software reuse during system development. The project includes two tasks - a reuse experiment and a redevelopment effort. The reuse experiment will define a life cycle and a methodology for reuse-based development, and define and implement a data collection mechanism for measuring the development. The redevelopment effort will construct a reuse test bed and will redevelop and realistically test subsystems from an embedded mission-critical real-time application. The reuse experiment will produce several products including a tested real-time application, reuse-based components and tools evaluation, a reuse-based development method, a framework for data collection, a framework for measuring productivity, and lessons learned data. Successful development with reusable components will require a rich set of components and an integrating methodology. The Tomahawk Land Attack Missile system is the application for the redevelopment effort.

Holibaugh, Robert

1989-01-01

165

SEI nuclear technology findings by the Stafford Synthesis Group  

SciTech Connect

Nuclear propulsion is key to reducing travel time to Mars, greatly reducing the mass in low Earth orbit, and enhancing schedule flexibility by increasing the Earth orbit departure launch window. Nuclear thermal rockets have twice to three times the performance of the best chemical rockets. This directly translates into reduced trip times and lower mass in low Earth orbit. Trip times of < 400 days in space are possible, a limitation if restricted to chemical propulsion. Psychological, physiological and radiological problems are significant issues for long mission times. The psychology of being cooped up so long in a minimum-sized capsule is cause for concern - much longer than considered healthy for nuclear submarine crews. The effects of long-term weightlessness are being debated. Short trip times eliminate the need for artificial gravity. The largest uncertainty is the effect of galactic radiation that will expose the crew to high levels of radiation for as much as 60 rem/yr.

Buden, D. (Idaho National Engineering Lab., Idaho Falls (United States))

1991-01-01

166

Software engineering activities at SEI (Software Engineering Institute)  

NASA Technical Reports Server (NTRS)

Prototyping was shown to ease system specification and implementation, especially in the area of user interfaces. Other prototyping approaches do not allow for the evolution of the prototype into a production system or support maintenance after the system is fielded. A set of goals is presented for a modern user interface environment and Serpent, a prototype implementation that achieves these goals, is described.

Chittister, Clyde

1990-01-01

167

SEI: Junior E&M Course Materials - Electrodynamics  

NSDL National Science Digital Library

This is a collection of resources for teaching electrodynamics. Included are homework questions, concept tests, student tutorials, and information about common student difficulties in the topic and ways to address these difficulties. This material was developed as part of a education research-based course transformation for junior level E&M. All of the resources developed for this course are available, sorted by individual topic and type, at http://www.compadre.org/psrc/items/Relations.cfm?ID=7891. Because this topic is not typically taught in depth in the courses used in developing these course materials, these materials are less complete than the other sections.

Pollock, Steven J.; Chasteen, Stephanie V.

2010-09-24

168

GERENCIAMENTO POR PROCESSO: UM ESTUDO DE CASO NO SETOR SUCROALCOOLEIRO BRASILEIRO PROCESS MANAGEMENT: A CASE STUDY OF THE BRAZILIAN SUGAR ALCOHOL SECTOR  

Microsoft Academic Search

Resumo: O objetivo deste trabalho analisar os resultados da mudana na estrutura funcional de uma empresa sucroalcooleira, realizada por uma empresa de consultoria especializada em gesto empresarial. Assim, para a realizao deste trabalho foi usado o mtodo de estudo de caso nico, baseado em relatrios de consultoria. Os principais resultados encontrados foram: (1) o retorno financeiro devido mudana

Ricardo Alexandre Feliciano; Roberto Gilioli Rotondaro

169

Estudo baseado na teoria piagetiana sobre a fidelidade em dois contos de As Mil e uma Noites na verso de Galland 1 Study based on Piaget's theory about fidelity in two stories extracted from \\  

Microsoft Academic Search

Resumo: Caracteriza-se por um estudo terico numa viso piagetiana sobre dois contos da coletnea As Mil e uma Noites na verso de Galland. O objetivo analisar, nas narrativas, a virtude e a fidelidade, verificando se as relaes entre os personagens so mantidas pelo amor, pelo respeito mtuo e relaes de eqidade ou pelo medo e obedincia apresentado entre os

Luana Carramillo Going

170

Sphincteroplasty for incontinence after surgery for idiopathic fistula in ano  

Microsoft Academic Search

. Between 1990 and 1992, external sphincter repair was performed in 20 patients rendered faecally incontinent after earlier\\u000a fistula surgery. All were improved, 13 (65%) achieving Grade 1 or 2 continence. Postoperative ultrasound was useful in explaining\\u000a the sub-optimal outcome of 3 patients who still had defects. Clinical outcome in female patients was better than in male patients.\\u000a Clinical outcome

A. F. Engel; P. J. Lunniss; M. A. Kamm; R. K. S. Phillips

1997-01-01

171

ORGENO ARAUA: SNTESE DO CONHECIMENTO 30 ANOS APS ALMEIDA 1977  

Microsoft Academic Search

The Araua Fold Belt was defined as the southeastern limit of the So Francisco Craton in the classical paper published by Fernando Flvio Marques de Almeida in 1977. This keystone of the Brazilian geologic literature catalyzed important discoveries, such as of Neoproterozoic ophiolites and a calc-alkaline magmatic arc, related to the Araua Belt and paleotectonic correlations with its counterpart located

Antnio Carlos Pedrosa-Soares; Carlos Maurcio Noce; Fernando Flecha de Alkmim; Luiz Carlos da Silva; Marly Babinski; Umberto Cordani; Cristiane Castaeda

172

46. Der Allschicht-Vorfall des AnoRectum  

Microsoft Academic Search

Summary Complete prolapse or procidentia of the rectum describes the extrusion of the entire thickness of the rectal wall through the anus. A number of factors have been alleged to be important in the production of procidentia; at present stress is placed on the concept of intussuception. A large number of operative procedures, designed to correct this condition, reflect the

A. Zngl

1985-01-01

173

Lateral internal sphincterotomy for fissure-in-anoRevisited  

Microsoft Academic Search

PURPOSE: A disturbing complication rate following lateral internal sphincterotomy (LIS) has recently been reported, and this study assessed our complication rate. METHODS: Charts of 312 patients who were operated on between January 1975 and December 1993 were reviewed. RESULTS: There were 148 men (47.5 percent) and 164 women (52.5 percent), ranging in age from 16 to 95 (mean, 40) years.

Nissim Hananel; Philip H. Gordon

1997-01-01

174

Fistula-in-ano: A ten-year follow-up study of horseshoe-abscess fistula-in-ano  

Microsoft Academic Search

SummaryA preliminary report in 19654 described a conservative surgical procedure for the management of acute and chronic horseshoe anal fistulas. The operation\\u000a has been used exclusively at the Ochsner Clinic for this problem since 1963. Forty-one patients were treated from 1963 to\\u000a 1973.\\u000a \\u000a The paper reviews the pathology of acute and chronic horseshoe anal fistulas and describes the surgical procedure

Patrick H. Hanley; John E. Ray; E. Earl Pennington; Oscar M. Grablowsky

1976-01-01

175

The role of TMEM16A (ANO1) and TMEM16F (ANO6) in cell migration.  

PubMed

Members of the TMEM16 family have recently been described as Ca(2+)-activated Cl(-) channels. They have been implicated in cancer and appear to be associated with poor patient prognosis. Here, we investigate the role of TMEM16 channels in cell migration, which is largely unknown. We focused on TMEM16A and TMEM16F channels that have the highest expression of TMEM16 channels in Ehrlich Lettre ascites (ELA) cells. Due to the lack of specific pharmacological modulators, we employed a miRNA approach and stably knocked down the expression of TMEM16A and TMEM16F channels, respectively. Migration analysis shows that TMEM16A KD clones are affected in their directional migration, whereas TMEM16F KD clones show a 40 % reduced rate of cell migration. Moreover, TMEM16A KD clones have a smaller projected cell area, and they are rounder than TMEM16F KD clones. The morphological changes are linearly correlated with the directionality of cells. TMEM16A and TMEM16F, thus, have an important function in cell migration-TMEM16A in directional migration, TMEM16F in determination of the speed of migration. We conclude that TMEM16A and TMEM16F channels have a distinct impact on the steering and motor mechanisms of migrating ELA cells. PMID:23832500

Jacobsen, K S; Zeeberg, K; Sauter, D R P; Poulsen, K A; Hoffmann, E K; Schwab, A

2013-12-01

176

S?NDROME DO X FRGIL Estudo caso-controle envolvendo pacientes pr e ps-puberais com diagnstico confirmado por anlise molecular  

Microsoft Academic Search

RESUMO - A sndrome do X frgil a causa mais comum de retardo mental herdado; entretanto, subdiagnosticada na populao peditrica. Objetivamos, neste estudo, determinar as caractersticas clnicas pr e ps-puberais mais significativas observadas entre indivduos que apresentam a mutao no gene FMR- 1, e que possam ser utilizadas como mtodo de triagem dos pacientes que devem ser submetidos

Raquel Boy; Santana Correia; Juan Clinton Llerena; Maria do Carmo Machado-Ferreira

177

Robotic lunar rover technologies and SEI supporting technologies at Sandia National Laboratories  

NASA Technical Reports Server (NTRS)

Existing robotic rover technologies at Sandia National Laboratories (SNL) can be applied toward the realization of a robotic lunar rover mission in the near term. Recent activities at the SNL-RVR have demonstrated the utility of existing rover technologies for performing remote field geology tasks similar to those envisioned on a robotic lunar rover mission. Specific technologies demonstrated include low-data-rate teleoperation, multivehicle control, remote site and sample inspection, standard bandwidth stereo vision, and autonomous path following based on both internal dead reckoning and an external position location update system. These activities serve to support the use of robotic rovers for an early return to the lunar surface by demonstrating capabilities that are attainable with off-the-shelf technology and existing control techniques. The breadth of technical activities at SNL provides many supporting technology areas for robotic rover development. These range from core competency areas and microsensor fabrication facilities, to actual space qualification of flight components that are designed and fabricated in-house.

Klarer, Paul R.

1992-01-01

178

An Alternative Three-Level Model for Estimating SEIs and Their Stability.  

ERIC Educational Resources Information Center

After a brief review of recent research concerning school effectiveness, this paper proposes an approach to operationalizing school effectiveness that is based on the achievement of students in a school over a period of time. This three-level model does not follow a single cohort of students as they progress through school. Rather, it uses the

Mandeville, Garrett K.

179

SEI: Junior E&M I Course Materials - Concept Tests/Clicker Questions  

NSDL National Science Digital Library

This concept test / clicker question collection was constructed over the course of four semesters of a transformed junior-level Electricity and Magnetism course on electro- and magneto-statics. The questions are intended to be used with personal response systems as peer instruction. Some comments in the notes section of each slide provides information about the results of use in class, such as average student responses. This material was developed as part of a education research-based course transformation for junior level E&M. All of the resources developed for this course are available, sorted by individual topic and type, at http://www.compadre.org/psrc/items/Relations.cfm?ID=7891.

Pollock, Steven J.; Chasteen, Stephanie V.; Kinney, Edward; Dubson, Michael

2010-06-09

180

Characterization of the SEI on a carbon film electrode by combinedEQCM and spectroscopic ellipsometry  

SciTech Connect

The electrochemical quartz crystal microbalance (EQCM) andcyclic voltammetry have been applied simultaneously to characterizeelectron-beam deposited carbon film electrodes in LiClO4 orLiPF6-containing mixed electrolytes of ethylene carbonate (EC) anddimethyl carbonate (DMC). The structure of the carbon electrode was foundto be amorphous/disordered using Raman spectroscopy. Cyclic voltammetryin LiClO4 / EC+DMC demonstrated features typical of Liintercalation/deintercalation into/from the disordered carbon electrode,and EQCM showed a corresponding mass increase/decrease. Contrary to thecase of LiClO4 / EC+DMC electrolyte, LiPF6/EC+DMC electrolyte showed noLi deintercalation out of the thin-film carbon electrode. Combined EQCMand spectroscopic ellipsometry data were compared, and the solidelectrolyte interphase density after the first cycle in LiClO4 /EC+DMCwas estimated to be 1.3 g/cm3.

evans@socrates.berkeley.edu

2002-01-01

181

Relation of the lunar power system to the SEI program and to landers  

NASA Astrophysics Data System (ADS)

The people of Earth will need more than 20,000 billion watts (GWe) of electric power by 2050 for a high level of prosperity. Power needs in the 22nd Century could exceed 100,000 GWe. By 2100 the total quantity of thermal energy used could fully deplete the known inventory (10(exp 7) GWt-Y) of all non-renewable sources on Earth except for deuterium and hydrogen for use in proposed fusion reactors. The labor, capital, and mass of power plants required to produce 1 GWe-Y of energy from present-day power plants is summarized. Fossil and nuclear plants respectively consume 80 to 190 M$ and 12 to 48 M$ of fuel per GWe-Y. The Lunar Power System (LPS) uses solar power bases on the moon to beam electric power to Earth. The LPS in the figure supplies load-following power to rectennas on Earth. Additional solar power conversion units are located across the lunar limb from their respective Earthward transmitting stations. LPS can be augmented by mirrors in polar orbit about the moon. The construction of rectennas on Earth determines the base cost (0.001s$/kWe-H) of LPS power. A manned International Lunar Base (ILB) can accelerate the development of LPS by providing the initial transportation and habitation facilities and base operations. ILB can greatly reduce up front costs and risks by emplacing a moderate scale LPS (1-100 GWe). LPS can accelerate the development of the ILB by providing greater funding than is reasonable to expect for purely scientific research. An international ILB/LPS program can foster world trust and prosperity.

Criswell, David R.; Waldron, Robert D.

182

El modelo de funcionamiento econmico en cuba y sus transformaciones. Seis ejes articuladores para su anlisis  

Microsoft Academic Search

La Economa se ha convertido en el tema central de discusin en la Cuba del 2011. La direccin del Partido Comunista ha impulsado el debate masivo argumentando la necesidad de actualizar el modelo econmico cubano. Sin embargo, la mayora de las propuestas y reflexiones suscitadas, incluidos los Lineamientos aprobados durante el VI Congreso del PCC, se erigen sobre la base

Oscar Fernndez Estrada

2011-01-01

183

CONCENTRACIN DE CARBONO Y NITRGENO A SEIS FRECUENCIAS DE PODA EN Tithonia diversifolia Y Morus alba  

Microsoft Academic Search

The study was carried out at EARTH University with the objective to quantify the concentration of carbon and nitrogen in the above-ground plant biomass and in the soil of six frequencies of pruning in Tithonia diversifolia and Morus alba. Random blocks were used with treatments in divided plots, using small parcels of 3 m x 4 m with 36 plants.

Y. Zavala; J. C. Rodrguez; M. Cerrato

184

77 FR 40406 - Cancellation of Supplemental Environmental Impact Statement (SEIS); Travis County, TX  

Federal Register 2010, 2011, 2012, 2013

...is being rescinded. FOR FURTHER INFORMATION CONTACT: Mr. Salvador Deocampo, District Engineer, District A, Federal Highway...that an EIS would be required. Issued on: June 25, 2012. Salvador Deocampo, District Engineer. [FR Doc. 2012-16640...

2012-07-09

185

75 FR 54420 - Cancellation of Supplemental Environmental Impact Statement (SEIS); Travis County, TX  

Federal Register 2010, 2011, 2012, 2013

...is being rescinded. FOR FURTHER INFORMATION CONTACT: Mr. Salvador Deocampo, District Engineer, District A, Federal Highway...funding becomes available. Issued on: August 31, 2010. Salvador Deocampo, District Engineer, FHWA Texas Division. [FR...

2010-09-07

186

Relation of the lunar power system to the SEI program and to landers  

NASA Technical Reports Server (NTRS)

The people of Earth will need more than 20,000 billion watts (GWe) of electric power by 2050 for a high level of prosperity. Power needs in the 22nd Century could exceed 100,000 GWe. By 2100 the total quantity of thermal energy used could fully deplete the known inventory (10(exp 7) GWt-Y) of all non-renewable sources on Earth except for deuterium and hydrogen for use in proposed fusion reactors. The labor, capital, and mass of power plants required to produce 1 GWe-Y of energy from present-day power plants is summarized. Fossil and nuclear plants respectively consume 80 to 190 M$ and 12 to 48 M$ of fuel per GWe-Y. The Lunar Power System (LPS) uses solar power bases on the moon to beam electric power to Earth. The LPS in the figure supplies load-following power to rectennas on Earth. Additional solar power conversion units are located across the lunar limb from their respective Earthward transmitting stations. LPS can be augmented by mirrors in polar orbit about the moon. The construction of rectennas on Earth determines the base cost (0.001s$/kWe-H) of LPS power. A manned International Lunar Base (ILB) can accelerate the development of LPS by providing the initial transportation and habitation facilities and base operations. ILB can greatly reduce up front costs and risks by emplacing a moderate scale LPS (1-100 GWe). LPS can accelerate the development of the ILB by providing greater funding than is reasonable to expect for purely scientific research. An international ILB/LPS program can foster world trust and prosperity.

Criswell, David R.; Waldron, Robert D.

1992-01-01

187

DOSES, EFICINCIA E USO DE NITROGNIO POR SEIS CULTIVARES DE MILHO  

Microsoft Academic Search

Corn needs high amount of nitrogen and this element in soil shows fluctuation due to humidity degree. In addition, cultivars show different performance to N supply. This work aimed to study nitrogen doses, use and efficiency in six corn cultivars, cropped in a cerrado soil vegetation area, Selviria-MS, in a clayey, hipodistrophyc, alic, red latosol (Haplustox). The plots were constituted

FLVIA CARVALHO; SILVA FERNANDES; SALATIR BUZETTI; ORIVALDO ARF; ANTONIO DA COSTA ANDRADE JOO

188

Geografia de America Latina. Grados Seis-Diez (Geography of Latin America. Grades Six-Ten).  

ERIC Educational Resources Information Center

This publication, intended for Spanish-speaking students in grades 6-10, has three main objectives. First, it serves as an introduction (or refresher) to basic geographic concepts. Second, it is an examination of the physical and political geography of Latin America. Third, it is designed to help students examine maps in a critical manner. The

Stanford Univ., CA. Stanford Program on International and Cross Cultural Education.

189

BETWEEN INSPIRE AND SEIS INITIATIVES: THE FIRST STEPS TOWARD AN INTEROPERABLE ENVIRONMENTAL INFORMATION SYSTEM  

Microsoft Academic Search

The Italian Environmental Information and Monitoring System (SINA) is a nationwide cooperating network among the main environmental institutions involved in data collection and management processes. Since 2001, the network has involved all the environmental authorities from local to national level to ensure mandatory environmental data provisions and reporting as expected by European directives. Resembling the EEA\\/EIOnet model, SINAnet is composed

C. Maricchiolo; M. Munaf; G. Turco; G. Amadore; E. Sarzotti; A. Navarretta

190

76 FR 60017 - Notice of Intent To Prepare a Supplemental Environmental Impact Statement (SEIS) for the...  

Federal Register 2010, 2011, 2012, 2013

...stockpile remains safe and reliable. Tritium, a radioactive isotope of hydrogen, is an essential component of every weapon in...were designed to utilize 12- foot-long rods containing an isotope of boron (boron-10) in ceramic form. These rods are...

2011-09-28

191

75 FR 16731 - Young Dodge SEIS; Kootenai National Forest, Lincoln County, MT  

Federal Register 2010, 2011, 2012, 2013

...project. The Young Dodge project includes urban interface...treatments, vegetation management, watershed rehabilitation...improvement, and access management changes, including road decommissioning. The project is located in the...

2010-04-02

192

SEI: Upper-Division Electrodynamics (E&M 2) Course Materials  

NSDL National Science Digital Library

This web site contains a complete suite of resources suitable for the second semester of an undergraduate electricity and magnetism class. The materials developed include a suite of clicker questions, in-class activities, homework problems, and other assessments. The topics covered include Maxwell's time-dependent equations, AC circuits, conservation laws, electromagnetic waves in vacuum and media, potentials and gauge transformations, radiation & special relativity. This package of course materials also contains implementation guides, an archive of several past E&M II courses at the University of Colorado, and supporting materials such as explicit learning goals, relevant education research articles, and notes on common student difficulties. The materials are available in Word, Powerpoint, and PDF formats to facilitate their adaptation and implementation by others. Assessment materials are available from the authors upon request. The authors of these materials are seeking feedback to help in the refinement and improvement of these course materials and assessments.

Baily, Charles; Pollock, Steven J.; Dubson, Michael

2012-07-25

193

An interagency space nuclear propulsion safety policy for SEI - Issues and discussion  

NASA Technical Reports Server (NTRS)

An interagency Nuclear Safety Policy Working Group (NSPWG) was chartered to recommend nuclear safety policy, requirements, and guidelines for the Space Exploration Initiative nuclear propulsion program to facilitate the implementation of mission planning and conceptual design studies. The NSPWG developed a top level policy to provide the guiding principles for the development and implementation of the nuclear propulsion safety program and the development of Safety Functional Requirements. In addition, the NSPWG reviewed safety issues for nuclear propulsion and recommended top level safety requirements and guidelines to address these issues. Safety topics include reactor start-up, inadvertent criticality, radiological release and exposure, disposal, entry, safeguards, risk/reliability, operational safety, ground testing, and other considerations. In this paper the emphasis is placed on the safety policy and the issues and considerations that are addressed by the NSPWG recommendations.

Marshall, A. C.; Sawyer, J. C., Jr.

1991-01-01

194

Migrao Familiar e Trabalho Infantil no Brasil Urbano  

Microsoft Academic Search

O principal objetivo desse estudo analisar como os pais alocam o tempo dos filhos de 10 a 14 anos entre estudo e trabalho no Brasil urbano, considerando entre os possveis determinantes, a condio de migrao intersetorial da famlia. Para tanto, foram utilizados dados do Censo Demogrfico 2000 do IBGE. A anlise emprica foi dividida em duas partes. Primeiro, utilizou-se

Shirley Pereira Mesquita

195

Catholic Educational Publishing between the Two Wars: The Case of the Publishers SEI of Turin and La Scuola of Brescia  

ERIC Educational Resources Information Center

Only at the beginning of the Twentieth century, a confessional type of publishing, directed mainly at schools and teachers and devoted, almost exclusively, to publishing textbooks for every level and type of school, came into existence in Italy. In the period between the two World Wars and especially after the Gentile Reform (1923), this type of

Sani, Roberto

2009-01-01

196

75 FR 52589 - Notice of Intent To Prepare a Supplemental Environmental Impact Statement (SEIS) for the Cal...  

Federal Register 2010, 2011, 2012, 2013

...for the Cal Black Memorial Airport at Halls Crossing, UT AGENCY: Federal Aviation...30, 2010. SUPPLEMENTARY INFORMATION: Halls Crossing Airport was located within the...Filed 8-25-10; 8:45 am] BILLING CODE...

2010-08-26

197

A eficcia da terapia manual em indivduos cefaleicos portadores e no-portadores de degenerao cervical: anlise de seis casos  

Microsoft Academic Search

The effectiveness of manual therapy in individuals with headaches, with and without cervical degeneration: analysis of six cases Background: Tension-type headaches (TTH) are generally treated with prophylactic medication. With regard to Physical Therapy treatment, many types of procedures have been reported, ranging from electrotherapy and acupuncture to techniques such as cervical traction, vertebral mobilization, stretching and relaxation. Objective: To examine

JGS Morelli; JR Rebelatto

2007-01-01

198

Subsurface Deformation in the Gangetic Plain - First results from the BrahmaSeis multichannel seismic survey on Bangladesh Rivers  

NASA Astrophysics Data System (ADS)

In Bangladesh, the northeastern boundary of the Indian-Asian collision zone is buried under thick delta sediments, delivered in huge volumes by the Ganges-Brahmaputra-Meghna river system. Monsoon-induced erosion provided several tens of meters of Holocene sediments to a subsiding delta plain, and it therefore remains a challenge to reconstruct the plate boundary, fault planes and main deformational styles and phases. While structural investigations with seismic methods on land are particularly difficult in the country, the distinctly elevated water level after the peak monsoon season provided the opportunity of a water seismic survey, utilizing marine seismic equipment and approaches. As part of the BanglaPIRE project, a first multichannel seismic survey had been carried out in September 2011 particularly on the rivers Meghna and Jamuna to find and map indications for subsurface deformation and the associated response of the sediment dispersal system during the late Quaternary development of the Gangetic delta plain. Using a high-resolution 48-channel streamer and a micro GI-Gun with 0.1 L volume, supported by two small diving compressors, continuous airgun profiles were acquired in several daily stretches along both rivers northward to the Indian border. Major challenges were, among others, a lack of navigational fixpoints in a rapidly changing delta and river landscape, the lack of clearly defined strata in a predominantly sandy environment, and the widespread occurrence of large amounts of shallow gas. In the northernmost stretch of the survey, the Dauki Fault, bounding the Shillong Plateau uplift on the southern side, is supposed to be covered by sediment in the slowly subsiding Sylhet Basin. On the Meghna river in central Bangladesh, the westernmost extent of the Indo-Burman Fold Belt was assumed. And on Jamuna, the western extension of the Dauki Fault and its interaction with the main river system is as unclear. The acquired multichannel seismic data, using shot rates on the order of 5 to 8 seconds, were sufficiently dense to achieve a horizontal resolution between 1 and 5 meters, and vertical resolution is on the order of 1 meter. Preliminary processing has revealed several areas, where pronounced deformation can be derived from underlying pre-Holocene strata geometries, revealing anticlines and reflector truncation at the base of the river plain sediments. In particular the Jamuna N-S transect completely images this Holocene base reflector. In the northernmost survey lines on Jamuna, it seems that the assumed position of the Dauki Fault finds it expression in subsurface deformation, an anticline geometry as well as steps in the Holocene base reflector.

Spiess, V.; Schwenk, T.; Palamenghi, L.; Goodbred, S. L.; Steckler, M. S.; Seeber, L.; Petter, A. L.; Akhter, S. H.; Mondal, D.; Khan, S. R.

2012-12-01

199

Early SEI milestones - Underwater habitats and Antarctic research outposts as analogs for long duration spaceflight and lunar and Mars outposts  

NASA Technical Reports Server (NTRS)

The use of analog environments for space research is considered focusing on underwater habitats and Antarctic research sites as analogous settings to long-duration space flight. It is pointed out that the use of these earth analogs can provide engineers, scientists, and future crew members with critical 'mission' experience at a relatively low cost.

Rummel, John D.; Wharton, Robert A.; Andersen, Dale T.; Mckay, Christopher P.

1992-01-01

200

78 FR 16565 - Notice of Intent To Prepare a Supplemental Environmental Impact Statement (SEIS) and To Conduct...  

Federal Register 2010, 2011, 2012, 2013

...transported across the border in the Line 67 Pipeline in order to help address current and future demand by U.S. and Canada refineries for supplies of heavy crude oil from the Western Canadian Sedimentary Basin (WCSB) (``the Enbridge Energy, Line 67...

2013-03-15

201

Buen Comienzo, Buen Futuro: El Bebe de Seis Meses (Healthy Start, Grow Smart: Your Six-Month Old).  

ERIC Educational Resources Information Center

Distributed by the U.S. Departments of Agriculture, Education, and Health and Human Services, this Spanish-language pamphlet provides parents with information and advice about their infants in the sixth month of life. Following a brief description of developmental characteristics at this age, the pamphlet offers advice on a variety of topics,

Department of Agriculture, Washington, DC.

202

A Influncia da Escola e da Mdia na Obteno dos Conhecimentos Astronmicos  

NASA Astrophysics Data System (ADS)

O universo em que vivemos possui segredos jamais imaginados pelo homem, fruto da pequena proporo que ocupamos diante de um cosmos infinito. A astronomia funciona como um instrumento que sacia a sede humana em desvendar esses segredos, estudando as galxias, quasares, pulsares alm da existncia de todos os elementos que preenchem o espao csmico, o vcuo, no mais vazio como se pensou em outros tempos. A mdia explora esse campo de forma mstica e tambm cientfica. A difuso adequada e dentro dos padres educacionais vigentes, de conceitos astronmicos, se faz necessria, devido sua presena nos contedos escolares, centros de cincia e na mdia, de modo geral. A reforma do Currculo Bsico da Escola Pblica da maioria dos Estados brasileiros introduziu conceitos astronmicos desde a pr-escola at o Ensino Mdio. Num estudo realizado com 1.032 alunos do Ensino Mdio de seis escolas estaduais, revelou-se atravs da aplicao de um questionrio que abordava conheciment os bsicos em astronomia, como estes foram adquiridos e qual era a infra-estrutura oferecida pela escola: para 66,2% dos entrevistados o professor j fez alguma apresentao a respeito de astronomia. O presente estudo revelou tambm que 44,5% dos alunos entrevistados adquiriram seus conhecimentos astronmicos na escola, 28,1% atravs da televiso e 27,4% afirmaram que seus conhecimentos foram obtidos atravs de outros tipos de mdia (internet, filmes e revistas). Embora o estudo revele claramente que h certo equilbrio na forma em que os alunos obtiveram seus conhecimentos astronmicos, a mdia ainda explora e muitas vezes desperta o interesse pela astronomia com assuntos que no fazem parte de nosso cotidiano como, por exemplo, o homem na Lua, os projetos espaciais e a primeira viagem de um astronauta brasileiro no espao. Porm, em certos casos, a mdia pode promover conhecimentos incompletos ou mesmo equivocados sobre os conceitos que envolvam a astronomia, como por exemplo a propagao do som no vcuo observado na maioria dos filmes de f ico cientfica ou da existncia das estaes do ano em funo da distncia da Terra ao Sol, em conformidade com o questionrio aplicado.

da Cunha, W. S.; Voelzke, M. R.; Amaral, L. H.

2006-08-01

203

Analisis de las Condiciones de Salud del Nino de 0-6 anos en Honduras.  

ERIC Educational Resources Information Center

Examines the National Pediatric Service and the research program of the Maternity-Infant-Hospital-School in Honduras. Reports that health conditions of young children (birth to six years) in Honduras are appalling and that available funds for health services are inadequate, reflecting the country's economic and social crisis. (NH)

Matamoros, Douglas Alberto

1987-01-01

204

Actividades ano 1985/86 Departamento Materiales. (Activities of the years 1985/86 Materials Department).  

National Technical Information Service (NTIS)

The Materials Department of the National Atomic Energy Commission gives a description of the research done during the period 1985/1986 in the following fields; corrosion and transport of matter, transport phenomena, phase solidification and transformation...

1986-01-01

205

30 Anos de Investigao Sobre Externalidades do IDE para as Empresas Domsticas Que Concluses?  

Microsoft Academic Search

During the last three decades, a vast literature emerged on the empirical evidence of productivity spillovers from FDI. This is related to the fact that multinational firms own intangible assets which may be transmitted to domestic firms and thereby raise their productivity level. Results obtained so far are however mixed, and it does not seem possible to get a straightforward

Nuno Crespo; Maria Paula Fontoura

2006-01-01

206

CARACTERSTICAS ESTRUTURAIS DA MADEIRA DE Pinus elliottii Engelm AOS 30 ANOS DE IDADE  

Microsoft Academic Search

In this study, six trees from a 30 year slash pine stand were harvested. The stumps were converted into 2,5 m logs and the two first were processed into pith centered cants. After air- seasoning, the cants were transformed into small clear static bending specimens according to ASTM D143-93 (1995). Samples were taken near the pith and the bark. Bending

Clovis Roberto Haselein; Emerson Cechin; Elio Jos Santini; Darci Alberto Gatto

207

30 anos de investigao sobre externalidades do IDE para as empresas nacionais: que concluses?  

Microsoft Academic Search

Resumo: Durante as ltimas trs dcadas, surgiu uma vasta literatura sobre a existncia potencial de externalidades do IDE para as empresas domsticas traduzidas em ganhos de produtividade. Esta ocorrncia relaciona-se com o facto de as empresas multinacionais possurem activos intangveis que podem ser transmitidos s empresas domsticas. A anlise emprica no d, contudo, indicaes claras sobre o fenmeno. Neste artigo,

Nuno Crespo; Maria Paula Fontoura

2007-01-01

208

Clinical course and management of suprasphincteric and extrasphincteric fistula-in-ano.  

PubMed

Over an 8-year period five patients with suprasphincteric fistula and two with extraspincteric fistula a primary transsphincteric track were treated with fistulotomy, using delayed seton technique. In all but one case the fistulas had caused considerable morbidity, involving multiple episodes of abscess drainage and attempts to lay open the track before the correct diagnosis was established. No patient had recurrence of fistula and, despite complete division of the anorectal ring, and sphincter pressures were well maintained and anal continence was unchanged. The results suggest that the delayed seton technique is useful in the treatment of these very rare and complicated fistulas. PMID:2349857

Fasth, S B; Nordgren, S; Hultn, L

1990-05-01

209

Comparison of different magnetic resonance imaging sequences for assessment of fistula-in-ano  

PubMed Central

AIM: To assess agreement between different forms of T2 weighted imaging (T2WI), and post-contrast T1WI in the depiction of fistula tracts, inflammation, and internal openings with that of a reference test. METHODS: Thirty-nine consecutive prospective cases were enrolled. The following sequences were used for T2WI: 2D turbo-spin-echo (2D T2 TSE); 3D T2 TSE; short tau inversion recovery (STIR); 2D T2 TSE with fat saturation performed in all patients. T1WI were either a 3D T1-weighted prepared gradient echo sequence with fat saturation or a 2D T1 fat saturation [Spectral presaturation with inversion (SPIR)]. Agreement for each sequence for determination of fistula extension, internal openings, and the presence of active inflammation was assessed separately and blindly against a reference test comprised of follow-up, surgery, endoscopic ultrasound, and assessment by an independent experienced radiologist with access to all images. RESULTS: Fifty-six fistula tracts were found: 2 inter-sphincteric, 13 trans-sphincteric, and 24 with additional tracts. The best T2 weighted sequence for depiction of fistula tracts was 2D T2 TSE (Cohens kappa = 1.0), followed by 3D T2 TSE (0.88), T2 with fat saturation (0.54), and STIR (0.19). Internal openings were best seen on 2D T2 TSE (Cohens kappa = 0.88), followed by 3D T2 TSE (0.70), T2 with fat saturation (0.54), and STIR (0.31). Detection of inflammation showed Cohens kappa of 0.88 with 2D T2 TSE, 0.62 with 3D T2 TSE, 0.63 with STIR, and 0.54 with T2 with fat saturation. STIR, 3D T2 TSE, and T2 with fat saturation did not make any contributions compared to 2D T2 TSE. Post-contrast 3D T1 weighted prepared gradient echo sequence with fat saturation showed better agreement in the depiction of fistulae (Cohens kappa = 0.94), finding internal openings (Cohens kappa = 0.97), and evaluating inflammation (Cohens kappa = 0.94) compared to post-contrast 2D T1 fat saturation or SPIR where the corresponding figures were 0.71, 0.66, and 0.87, respectively. Comparing the best T1 and T2 sequences showed that, for best results, both sequences were necessary. CONCLUSION: 3D T1 weighted sequences were best for the depiction of internal openings and active inflammatory components, while 2D T2 TSE provided the best assessment of fistula extension.

Torkzad, Michael R; Ahlstrom, Hakan; Karlbom, Urban

2014-01-01

210

Cinco Anos Despues: A Preliminary Critique of the Sixteen Point/Spanish Speaking Program - Five Years.  

ERIC Educational Resources Information Center

In 1970, the Spanish Speaking Program was launched as the Sixteen-Point Program to increase the number of Hispanic employees in the Federal Service. It functioned as part of the government-wide Equal Employment Opportunity (EEO) Program. In 1973 the U.S. Civil Service Commission's Federal Personnel Manual required agencies to take specific actions

National Council of La Raza, Washington, DC.

211

Chronic fissure-in-ano: A randomized study comparing open and subcutaneous lateral internal sphincterotomy  

Microsoft Academic Search

A prospective study comparing open and subcutaneous lateral internal sphincterotomy for chronic anal fissure was conducted. One hundred twelve patients were randomized to open (n=54) or subcutaneous (n=58) sphincterotomy. There was no significant difference in acute complications between the subcutaneous (8.6 percent) and open (7.4 percent) groups. Postoperative length of stay was significantly shorter for the subcutaneous group (1.70.2 days)

J. B. Kortbeek; J. M. Langevin; R. E. H. Khoo; J. A. Heine

1992-01-01

212

Is manometry essential for surgery of chronic fissure-in-ano?  

Microsoft Academic Search

PURPOSE: Although many studies reported the association between high anal sphincter pressures and anal fissures, one question is open to date: is manometry really necessary for surgical management\\/does manometry influence the outcome? METHODS: Between October 1, 1990 and December 31, 1991, lateral sphincterotomy was performed in 177 patients with chronic anal fissure. In all patients the operation was performed as

Peter Prohm; Christoph Bnner

1995-01-01

213

Anal sphincteric pressure in fissure-in-ano before and after lateral internal sphincterotomy  

Microsoft Academic Search

Resting anal canal pressure was measured in 15 patients with anal fissure before and after lateral internal sphincterotomy.\\u000a This pressure was found to be significantly higher in these subjects (mean 9523.08 mm HG) than in the control group (mean\\u000a 66.1014.28 mm Hg) before surgery (P<0.005). After surgery, a normal anal canal pressure was produced. The authors maintain that anal canal

F. Javier Cerdn; Antonio Ruiz de Len; Fernando Azpiroz; Jose Martn; Jos Luis Balibrea

1982-01-01

214

Estudo fotomicrogrfico das caractErsticas dE supErfciE dE pontas diamantadas: EfEito do mtodo dE EstErilizao por Estufa ou autoclavE. PhOt OmiCROgRaPhiC St Udy Of diamOnd b URS SURfaCe ChaRaCte RiSti CS: effeCt Of the SteRilizatiOn methOd by dR y heat OR aUt OClave  

Microsoft Academic Search

rEsumo Introduo: A limpeza, desinfeco e esterilizao dos instrumentos so imprescindveis para evitar in- feces cruzadas no consultrio odontolgico. Visando testar a eficincia das pontas diamantadas, so avaliadas, por meio de fotomicrografias, as alteraes superficiais dessas pontas em funo do uso da estufa ou autoclave. Mtodos: Para isso, foi realizado um estudo in vitro com 108 terceiros molares humanos e

Lgia Antunes; Regina Helena; Barbosa Tavares da Silva; Ivone Lima Santana; Laiza Maria Grassi Fais; Dalton Geraldo Guaglianoni

215

Cirurgia Endoscpica Nasossinusal e da Base do Crnio Guiada por Computador  

Microsoft Academic Search

Introduo: Apesar de nas ltimas dcadas, as cirurgias dos seios paranasais e base de crnio terem apresentado grande progresso, principalmente com o advento dos novos instrumentais, visualizao endoscpica e estudos por imagem, ainda apresentam complicaes de graus variveis. A cirurgia guiada por computador (CGC), tecnologia introduzida h poucos anos, foi idealizada para auxiliar o cirurgio na localizao precisa de estruturas

Aldo C. Stamm; Shirley Pignatari; Bruno B. Sebusiani; Marcos C. Galati; Srgio Mitsuda; Rainer G. Haetinger

2002-01-01

216

ALTERAES DA FASE ORAL DA DEGLUTIO EM CRIANAS COM PARALISIA CEREBRAL Changes in the oral phase of swallowing in children with cerebral palsy  

Microsoft Academic Search

RESUMO Objetivos: Verificar as alteraes na fase oral da deglutio em crianas com paralisia cerebral. Mtodo: Foi conduzido um estudo quantitativo, observacional e transversal, desenvolvido no perodo de junho a agosto de 2006 no NAMI - Ncleo de Ateno Mdica Integrada, em Fortaleza-CE. A amostra constituiu-se de 20 crianas na faixa etria de 1 ano e 6 meses a 8

Karise Santos Vasconcelos

2008-01-01

217

Efeitos da Explorao Madeireira de Baixo Impacto sobre uma Comunidade de Aves de Sub-bosque na Floresta Nacional do Tapajs, Par, Brasil  

Microsoft Academic Search

RESUMO Este estudo compara a resposta de uma comunidade aves explorao madeireira de baixo impacto atravs da distribuio das espcies em floresta controle e manejada ao longo de cinco anos com amostragem pr e ps-explorao. O procedimento de ordenao mostrou que a similaridade da comunidade de aves aps a explorao madeireira foi menor que a similaridade entre as amostras

Luiza Magalli; Pinto HENRIQUES; Joseph M. WUNdERLE; C. OREN; Michael R. WILLIG

218

Comparao do desempenho de pr-escolares, mediante teste de desenvolvimento de Denver, antes e aps interveno nutricional  

Microsoft Academic Search

RESUMO A anlise de performance psicomotora de crianas institucionalizadas de fundamental importncia no planejamento de atividades edu- cativas. Estudos anteriores tm mostrado prejuzos desta funo em crianas de creches. OBJETIVO. Comparar o desempenho no teste de triagem de Denver em crianas de 2 a 6 anos de idade, de creches conveniadas com a Prefeitura de So Paulo, antes

M. Fisberg; M. R. Pedromnico; J. A. P. Braga; A. M. A. Ferreira; C. Pini; S. C. C. Campos; S. O. Lemes; S. Silva; R. S. Silva; T. M. Andrade

1997-01-01

219

Prevalncia de sobrepeso\\/obesidade em crianas e adolescentes com constipao crnica funcional  

Microsoft Academic Search

RESUmO Objetivo: Avaliar a prevalncia do sobrepeso\\/obesidade em um grupo de crianas com constipao crnica funcional. Mtodos: Estudo retrospectivo com 257 crianas de dois a 15 anos com constipao crnica funcional diag- nosticada segundo critrios de Roma II, atendidas con- secutivamente em clnica terciria de gastroenterologia peditrica. Informaes demogrficas, clnicas, diagns - ticas e antropomtricas foram obtidas de pronturios. O

Francisca Teresa V. Faleiros; Cristiane Camargo Omae; Cristiane Yoshie Nakazawa; Mary de Assis Carvalho; Nilton Carlos Machado

2008-01-01

220

Haroldo Leito Camargo. Uma pr-histria do turismo no Brasil: recreaes aristocrticas e lazeres burgueses (1808-1850)  

Microsoft Academic Search

Na efemride dos duzentos anos da chegada da Coroa Portuguesa a ter- ras brasileiras e na esteira das inovaes que trouxe consigo como a cria- o de instituies de ensino superior, indstrias, imprensa e museus, entre outras , observamos que a historiografia tem revisitado esses temas. No en- tanto, poucos especialistas tm se debruado sobre o estudo das formas

Sandra C. A. Pelegrini

2008-01-01

221

The Role of Electrolyte Upon the SEI Formation Characteristics and Low Temperature Performance of Lithium-Ion Cells With Graphite Anodes  

NASA Technical Reports Server (NTRS)

Quarternary lithium-ion battery electrolyte solutions containing ester co-solvents in mixtures of carbonates have been demonstrated to have high conductivity at low temperatures (<-20 degrees Celcius).

Smart, M.; Ratnakumar, B.; Greenbaum, S.; Surampudi, S.

1998-01-01

222

The Role of Electrolyte Upon the SEI Formation Characteristics and Low Temperature Performance of Lithium-Ion Cells With Graphite Anodes  

NASA Technical Reports Server (NTRS)

Quarternary lithium-ion battery electrolyte solutions containing ester co-solvents in mixtures of carbonates have been demonstrated to have high conductivity at low temperatures (< -20C). However, in some cases the presence of such co-solvents does not directly translate into improved low temperature cell performance, presumably due to the formation of ionically resistive surface films on carbonaceous anodes. In order to understand this behavior, a number of lithium-graphite cells have been studied containing electrolytes with various ester co-solvents, including methyl acetate (MA), ethyl acetate (EA), ethyl propionate (EP), and ethyl butyrate (EB). The charge/discharge characterization of these cells indicates that the higher molecular weight esters result in electrolytes which possess superior low temperature performance in contrast to the lower molecular weight ester-containing solutions, even though these solutions display lower conductivity values.

Smart, M. C.; Ratnakumar, B. V.; Greenbaum, S.; Surampudi, S.

2000-01-01

223

MineSeis -- A MATLAB{reg_sign} GUI program to calculate synthetic seismograms from a linear, multi-shot blast source model  

Microsoft Academic Search

Large scale (up to 5 kt) chemical blasts are routinely conducted by mining and quarry industries around the world to remove overburden or to fragment rocks. Because of their ability to trigger the future International Monitoring System (IMS) of the Comprehensive Test Ban Treaty (CTBT), these blasts are monitored and studied by verification seismologists for the purpose of discriminating them

1998-01-01

224

The effects of LiBOB additive for stable SEI formation of PP13TFSI-organic mixed electrolyte in lithium ion batteries  

Microsoft Academic Search

A safe electrolyte system is prepared from N-methyl-N-propylpiperidinium bis (trifluoromethanesulfonyl) imide (PP13TFSI), organic electrolyte (1molL?1 LiPF6\\/EC-DEC) and lithium bis (oxalato) borate (LiBOB). The additive of LiBOB enhances the stability of interface between electrolyte and anode. The LiBOB-containing mixed electrolytes show non-flammability and good compatibility with active materials. The performance of anode for lithium ion battery is successfully improved by LiBOB-containing

Yongxin An; Pengjian Zuo; Xinqun Cheng; Lixia Liao; Geping Yin

2011-01-01

225

Preliminary Study of Using the SEI'S Capability Maturity Model to Set Statistical Control Bounds on DOD Contractor Cost and Schedule Performance.  

National Technical Information Service (NTIS)

Current methods for monitoring the performance of Department of Defense (DOD) software development contractors have not been successful in reversing the current trend of over budget and behind schedule software development. The DOD has adopted the Softwar...

J. A. Schaefer

1996-01-01

226

Como ayudar a su hijo durante los primeros anos de la adolescencia: Para los padres con ninos entre las edades de 10 a 14 anos (Helping Your Child through Early Adolescence: For Parents of Children from 10 through 14).  

ERIC Educational Resources Information Center

Recognizing that parents and families can greatly influence the development of their 10- through 14-year-olds, this Spanish-language booklet is part of a national effort to provide parents with the latest research and practical information to help them support their children both at home and in school. The booklet is organized in 13 sections

Paulu, Nancy

227

Acompanhamento do crescimento em crianas menores de um ano: situao nos servios de sade em Pernambuco, Brasil  

Microsoft Academic Search

A situational diagnosis was performed on infant growth monitoring in Greater Metropolitan Rec- ife and in the interior of the State of Pernambu- co, Brazil, using the database from the Survey on Maternal and Child Health in the State of Per- nambuco, 1998, which included 816 infants (< 1 year of age) and 120 health units. Epi Info ver- sion

Michelle Figueiredo Carvalho; Pedro Israel Cabral de Lira; Sylvia de Azevedo Mello Romani; In S. Santos; Ana Amlia Corra de Arajo Veras; Malaquias Batista Filho

2008-01-01

228

Potenciais evocados auditivos em indivduos acima de 50 anos de idade***** Auditory evoked potentials in individuals over 50 years  

Microsoft Academic Search

Background: auditory evoked potentials. Aim: to describe the results of brainstem auditory evoked potentials (PEATE), middle latency auditory evoked potentials (PEAML) and cognitive potential (P300) in individuals over 50 years. Method: this study was developed at the Speech and Hearing Investigation Laboratory in Auditory Evoked Potentials of the Speech-Language and Hearing Course of the Department of Physiotherapy, Speech-language and Hearing

Carla Gentile Matas; Valdete Alves; Valentins dos Santos Filha; Melissa Mitsue Cunha; Pires Okada; Juliana Reis Resque

229

[Ano-rectal symptoms, related to Epstein-Barr Virus-Associated Burkitt's lymphoma in an immunocompetent patient].  

PubMed

We report the case of an immunocompetent 23-year-old Caucasian woman, with symptoms including rectal bleeding, tenesmus and epreint, 6 months after an anal sexual trauma. The rectal examination showed a hardened, inflammatory and painful anal margin, associated with stenosis of the anal canal, suggesting abscess. The neurological examination showed numbing of the chin. Pelvic MRI and CT scan confirmed a bulky posterior tissular pelvic mass more than 7 cm in diameter, infiltrating the rectum and the anal canal. Final diagnosis confirmed by biopsy performed during rectosigmoidoscopy was an Epstein-Barr Virus-Associated Burkitt's lymphoma. Chemotherapy resulted in rapid regression of the tumoral mass. PMID:17483786

Degeorges, Stphane; Mesnil, Adeline; Marion-Audibert, Anne-Marie; Bouafia-Sauvy, Fadhla; Berger, Franoise; Bancel, Brigitte; Barnoud, Raphalle; Rode, Agns; Pr-Verg, Denis; Souquet, Jean-Christophe

2007-04-01

230

Soy Tu Hijo: Los Primeros Anos Marcan Para Siempre (I Am Your Child: The First Years Last Forever). [Videotape].  

ERIC Educational Resources Information Center

New research in brain development reveals the vital importance of the relationship between caregiver and child in the critical first years of life. This Spanish-language video explores the role of parents in stimulating early childhood development. The 28-minute video discusses: (1) attachment and the role of touch in creating a bond between

Reiner Foundation, Washington, DC.

231

Informacion Bibliografica: Ano 3, Num. 9, Enero-Febrero, 1972 (Bibliographic Information: Volume 3, Number 9, January-February 1972).  

ERIC Educational Resources Information Center

This bulletin contains several articles on various topics concerning information science. The first article is a report on the November 1971 Seminar on Documentation and Pedagogical Information in Latin America held in Panama. The second article, entitled "Informatica," provides a discussion of information science by three Soviet writers;

Martinez Martinez, Antonio L., Ed.

232

Perfil de Estudiantes de Primer Ano 1984-85 = Profile of First-Year Students 1984-85.  

ERIC Educational Resources Information Center

In August 1984, a study was conducted to develop a profile of first-year students at Ponce Technological University College (PTUC), as part of a student follow-up project undertaken at all University of Puerto Rico system units. A questionnaire designed by the University of Puerto Rico Institutional Research Committee was administered to freshmen

Vilarino de Medina, Ivonne

233

Avaliao das Habilidades Motoras Fundamentais de Crianas com Idades entre Nove e Doze Anos Praticantes de Futebol  

Microsoft Academic Search

The mature stage of the fundamental motor skills is indispensable to the learning of the specific sporting movement; therefore we present the relevance of the development of these skills in order to facilitate the learning process of the soccer fundamentals. The aim of this study was to verify the stages in which the fundamental motor skills were in fifteen male

AUGUSTO MOURA DE OLIVEIRA; JOAQUIM MARTINS JUNIOR

234

REA TEMTICA: ESTRATGIA EM ORGANIZAES A INFLUNCIA DE MICHAEL PORTER NA ESTRATGIA BRASILEIRA 30 ANOS DEPOIS DE ESTRATGIA COMPETITIVA  

Microsoft Academic Search

In the study of strategy in organizations and education management is the recurrent use of the work of Michael Porter as models to be used. Even 30 years after the release of his seminal article, their work is often remembered and used to better understand how is the placement and implementation of business strategy. In this research, we analyze the

MARCELO LOPES CARNEIRO; ALINE BOTELHO SCHNEIDER; FERNANDO RIBEIRO SERRA

235

Barreira Do Inferno: 5 Anos de Pesquisa COM Ozonio (Barreira Do Inferno: Five Years of Ozone Research).  

National Technical Information Service (NTIS)

A five-year tropospheric ozone research project carried out from 1978 to 1983 under the aegis of the Institute of Space Research and the Launching Center at Barreira do Inferno is described. The principal means of obtaining data was by sondes launched twi...

V. W. J. H. Kirchhoff A. G. Motta S. O. Azambuja

1983-01-01

236

El curriculo creativo para ninos de cero a tres anos (The Creative Curriculum for Infants and Toddlers).  

ERIC Educational Resources Information Center

Stemming from the core idea that infant and toddler care should be based on building relationships, this curriculum in Spanish-language version provides a foundation for staff development. Section 1, "Why a Curriculum for Infants and Toddlers?" examines key quality indicators, discusses curriculum components, describes how to use the curriculum to

Dombro, Amy Laura; Colker, Laura J.; Dodge, Diane Trister

237

Pregnancy in teenagers under 16 years old: perinatal adversities Gravidez em adolescentes menores de 16 anos: adversidades perinatais  

Microsoft Academic Search

Objectives: To verify the prevalence of pregnancy among adolescents under 16 years of age, the risk of pregnancy-induced hypertension and neonatal complications in the population attend at the Hospital Geral do Graja. Methods: Data related to every delivery performed at the Hospital Geral do Graja (HGG) from January 1st, 2000 to April 30th, 2004 were collected. The sample was divided

Jos Ricardo Dias Bertagnon; Ana Carolina; Daloia Ruzzante; Juliana Cristina da Costa Santos; Olvia Capela Grimaldi Oliveira; Ricardo Sestito Proto

238

Open vs . Closed Lateral Internal Sphincterotomy for Idiopathic Fissure-in-Ano: A Prospective, Randomized, Controlled Trial  

Microsoft Academic Search

PURPOSE: Internal sphincterotomy remains the gold standard for treatment of anal fissure but is associated with a risk of imperfect continence. Recent studies have suggested that surgical technique (open vs. closed) may influence incontinence rates after sphincterotomy. This study was designed to assess the short-term and long-term incidence of incontinence after open and closed internal sphincterotomy. METHODS: Seventy-nine patients were

M. Wiley; P. Day; N. Rieger; J. Stephens; J. Moore

2004-01-01

239

Lateral subcutaneous sphincterotomy versus anal dilatation in the treatment of fissure in ano in outpatients: a prospective randomised study  

Microsoft Academic Search

Fifty eight patients with idiopathic chronic anal fissure were included in a randomised prospective trial of lateral subcutaneous sphincterotomy versus simple anal dilatation carried out as outpatient procedures. Operations were performed under local anaesthesia and the patients reviewed 10-30 months later (median follow up time 18 months). Altogether 30 patients were treated by lateral subcutaneous sphincterotomy and 28 by anal

S L Jensen; F Lund; O V Nielsen; G Tange

1984-01-01

240

Anal sphincter function after treatment of fissure-in-ano by lateral subcutaneous sphincterotomy versus anal dilatation  

Microsoft Academic Search

Twenty patients with chronic anal fissure were randomized into two groups. Ten patients were treated with lateral subcutaneous sphincterotomy and 10 with anal dilatation. Anal dilatation was carried out preoperatively, and at 1 and 3 months after the operation in all patients. Preoperatively there was a significantly increased maximal resting pressure in the 20 fissure patients (80 mmHg median) compared

J. Olsen; P. E. Mortensen; I. Krogh Petersen; J. Christiansen

1987-01-01

241

Manual dilatation of the anus vs . Lateral subcutaneous sphincterotomy in the treatment of chronic fissure-in-ano  

Microsoft Academic Search

The results of a rospective randomized trial in 111 patients were recorded to compare manual dilatation of the anus with lateral\\u000a subcutaneous sphincterotomy performed under general anesthesia. There was no significant difference in the clinical results\\u000a nor in the incidence of complications. Persistent or recurrent fissure occurred in three of 59 patients after manual dilatation\\u000a of the anus and two

R. M. Weaver; N. S. Ambrose; J. Alexander-Williams; M. R. B. Keighley

1987-01-01

242

Abastecimiento de Agua Potable de Agua Superficial en los Anos Noventa (Supply of Potable Surface Water in the '90s).  

National Technical Information Service (NTIS)

A review is presented of the historical development of the treatment of surface water, including recent innovations and with an outlook to future trends. In particular, in the Netherlands, the convential coagulation-chlorination process is no longer accep...

J. C. Kruithof J. C. Schippers J. C. van Dijk

1992-01-01

243

Estudo de no gaussianidade nas anisotropias da RCF medidas Wmap  

NASA Astrophysics Data System (ADS)

A investigao do campo de flutuaes da Radiao Csmica de Fundo (RCF) pode oferecer um importante teste para os modelos cosmolgicos que descrevem a origem e a evoluo das flutuaes primordiais. De um lado, apresenta-se o modelo inflacionrio que prev um espectro de flutuaes adiabticas distribudas segundo uma gaussiana e, de outro, os modelos de defeitos topolgicos (dentre outros) que descrevem um mecanismo para a gerao de flutuaes de isocurvatura que obedecem a uma distribuio no gaussiana. Este trabalho tem como objetivo caracterizar traos do modelo no gaussiano de campo misto (entre flutuaes adiabticas e de isocurvatura) nos mapas do Wilkinson Microwave Anisotropy Probe (WMAP). Simulaes das anisotropias da RCF no contexto de mistura indicam traos marcantes na distribuio das flutuaes de temperatura, mesmo quando consideradas pequenas contribuies do campo de isocurvatura (da ordem de 0.001). O efeito da mistura entre os campos resulta na transferncia de potncia de flutuaes em escalas angulares intermedirias para flutuaes em pequenas escalas angulares. Este efeito pode ser caracterizado pela relao entre as amplitudes dos primeiros picos acsticos no espectro de potncia da RCF. Neste trabalho, investigamos a contribuio do campo de isocurvatura, no contexto de mistura, sobre as observaes recentes da RCF realizadas pelo WMAP. As previses do modelo de campo misto, uma vez confrontadas com as observaes em pequenas escalas angulares, podem ajudar a revelar a natureza das flutuaes primordiais.

Andrade, A. P. A.; Wuensche, C. A.; Ribeiro, A. L. B.

2003-08-01

244

Estudos epidemiolgicos e controle qumico de Phakopsora euvitis  

Microsoft Academic Search

Epidemiological studies and chemical control of Phakopsora euvitis In January of 2003 typical symptoms of rust were verified on leaves of grape vine (Vitis vinifera), in the experimental areas of the Universidade Estadual Paulista, campus of Ilha Solteira, in Selvria, Mato Grosso do Sul and Ilha Solteira, So Paulo State, Brazil. This is the first report of this vine disease

Erika S. Naruzawa; Mercia I. B. Celoto; Marli F. S. Papa; Germison V. Tomquelski; Aparecida C. Boliani

2006-01-01

245

INFLUNCIAS HISTRICAS NA CULTURA LITERRIA Um estudo de \\  

Microsoft Academic Search

The present work, result of researches and analyses, was idealized as an instrument to understand the influence historical contexts exert on the construction of sense of literary cultural production. Based on the knowledge of historical panorama of East Timor, in the period of Indonesian invasion, and Brazil's, during military dictatorship, the purpose of this work was to analyze the work

Chico Buarque

246

Crianas com dificuldade de aprendizagem: um estudo de seguimento  

Microsoft Academic Search

Considering that learning problems are a vulnerability factor throughout child development, mainly when other adversities are present, this research investigated the association between past conditions and present adjustment in adolescents who have attended a child guidance clinic because of their learning difficulties. The adolescents and their mothers were interviewed and data related to past life conditions were taken from their

Luciana Carla dos Santos; Edna Maria Marturano

1999-01-01

247

Estudo do comportamento higroscpico do pericrdio bovino liofilizado  

Microsoft Academic Search

Hygroscopic behavior of lyophilized products can be visualized starting from the construction of Moisture Sorption Isotherms (MSI). Such curves show the relationship between the maximum amount of absorbed water for a substance, with the equilibrium vapor pressure or water activity, at a given constant temperature. Aimed to study later the reconstitution and use of biological materials of lyophilized bovine pericardium,

Ana Maria I. B. Ayrosa; Marina J. S. Maizato; Bronislaw Polakiewicz; Marisa M. Beppu; Olga Z. Higa; Ronaldo N. M. Pitombo

2007-01-01

248

C-gen - Ferramenta de Apoio ao Estudo de Compiladores  

Microsoft Academic Search

Due the quantity of complex techniques involved in the Compilers discipline, it is well known the students difficulties to comprehend it. Moreover, tools for educational purposes on this theme are scarse, and only a handful have enough capacity to enclose a considerable portion of techniques teached at classroom. Considering that this situation hinders both exploration and visualization of the compilation

Jernimo Backes; Alessandra Dahmer

249

Metabolismo de repouso de mulheres ps-menopausadas submetidas a programa de treinamento com pesos (hipertrofia)  

Microsoft Academic Search

RESUMO O estudo objetivou avaliar o gasto energtico de repouso (GER) de mulheres ps-menopausadas submetidas a programa de trei- namento com pesos. Foram estudadas 30 mulheres (FSH > 40mIU\\/ mL) entre 45 e 70 anos, separadas em dois grupos (GT: treina- mento, n = 15 e GC: controle, n = 15). Calculou-se o ndice de massa corporal (kg\\/m2) e por

Mara Clia Trevisan; Roberto Carlos Burini

2007-01-01

250

A correlao ndice espectral vs. luminosidade em QSOs e suas implicaes  

NASA Astrophysics Data System (ADS)

Estudos de variabilidade de ncleos ativos j demonstraram ser comum o fato de seu contnuo ptico/UV tornar-se mais "duro" medida que a luminosidade aumenta. Essa tendncia ocorre tanto de forma individual quanto global, e pode ter implicaes importantes (1) para estudos fotomtricos de variabilidade conduzidos numa banda fixa no referencial do observador, comparando objetos a diferentes redshifts, e (2) no clculo da correo K, com consequente impacto na determinao de massas de buracos negros e bojos de galxias hospedeiras (atravs da relao de Magorrian). Confirmo aqui as correlaes positivas entre o ndice espectral e a luminosidade ptica, utilizando dados espectroscpicos de 11 QSOs monitorados no Brasil e no Chile, durante ~2 anos. O estudo complementado com parmetros extrados de espectros e de dados fotomtricos pblicos de quasares. Destaco ainda as diferenas observadas em tais correlaes para objetos do tipo radio-loud e radio-quiet. Este projeto financiado pelo I. Milnio/CNPq.

Garcia-Rissmann, A.

2003-08-01

251

Anlise da expanso de rea agrcola do Municpio de Lucas do Rio Verde - GO entre os anos de 1986 e 2007  

Microsoft Academic Search

Conversions of natural landscapes to croplands can be evaluated by remote sensing techniques, more specifically by change detection methods and by multitemporal data. These are essential sources of inf ormation to understand land use and land cover dynamics. Th is work has arisen from needing to compare differen ces in land cover using two Landsat \\/TM datasets throughout the time

Silvia Cristina de Jesus

252

1990: Ano Internacional de la alfabetizacion: Acciones sugeridas para America Latina y el Caribe = 1990 International Literacy Year: Suggested Actions for Latin America and the Caribbean.  

ERIC Educational Resources Information Center

This booklet discusses the needs for literacy education in Latin America and the Caribbean during International Literacy Year. Particular focus is on the objectives of International Literacy Year and suggested actions are provided in the four following areas: (1) operative strategies for the realization of the International Literacy Year,

United Nations Educational, Scientific, and Cultural Organization, Michoacan (Mexico). Regional Office for Educ. in Latin America & Caribbean.

253

COMPARAO DOS LAUDOS DE CONTROLE DE QUALIDADE DOS EQUIPAMENTOS RADIOLGICOS DE INSTITUIES DE SADE DO ESTADO DE SO PAULO DOS ANOS: 2000, 2002 E 2004  

Microsoft Academic Search

Quality assurance of the radiographic images concerning to equipment conditions is essential to get a good image quality, correct medical diagnostic and to prevent unnecessary dose exposure to health professionals and patients. In this work the historical analysis of 1084 Quality Assurance Technical Reports of Health institutions of the So Paulo State in Brazil over a period of 5 year

M. L. N. Ebisawa; M. F. A. Magon; Y. M. Mascarenhas

254

Indice Bibliografico Ciencias de la Educacion. Ano 1988. Volume II No. 1. (Bibliographic Index of the Education Sciences. 1988. Volume II No.1).  

ERIC Educational Resources Information Center

Published quarterly, this annotated bibliography indexes articles from scholarly Spanish journals, as well as significant foreign journals, considered important in the field of education. References are organized alphabetically according to subject and within each subject by number, author, and content. A users' information description is provided

Centro de Investigacion, Madrid (Spain). Servicio de Documentacion.

255

Targeted Next-Generation Sequencing of a 12.5 Mb Homozygous Region Reveals ANO10 Mutations in Patients with Autosomal-Recessive Cerebellar Ataxia  

Microsoft Academic Search

Autosomal-recessive cerebellar ataxias comprise a clinically and genetically heterogeneous group of neurodegenerative disorders. In contrast to their dominant counterparts, unraveling the molecular background of these ataxias has proven to be more complicated and the currently known mutations provide incomplete coverage for genotyping of patients. By combining SNP array-based linkage analysis and targeted resequencing of relevant sequences in the linkage interval

Sascha Vermeer; Alexander Hoischen; Rowdy P. P. Meijer; Christian Gilissen; Kornelia Neveling; Nienke Wieskamp; Arjan de Brouwer; Michel Koenig; Mathieu Anheim; Mirna Assoum; Nathalie Drouot; Slobodanka Todorovic; Vedrana Milic-Rasic; Hanns Lochmller; Giovanni Stevanin; Cyril Goizet; Albert David; Alexandra Durr; Alexis Brice; Berry Kremer; Mascha M. V. A. P. Schijvenaars; Angelien Heister; Michael Kwint; Peer Arts; Jenny van der Wijst; Joris Veltman; Erik-Jan Kamsteeg; Hans Scheffer; N. V. A. M. Knoers

2010-01-01

256

Tratamento cirrgico do tumor de corpo carotdeo: experincia de 30 anos do Hospital de Clnicas da UFPR Surgical treatment of the carotid body tumor: a 30-year experience  

Microsoft Academic Search

Objective: Carotid body tumors are rare and they must always be part of the differential diagnosis of tumor masses in the cervical region. Advances in vascular surgical techniques have reduced the risks of perioperative complications such as carotid injury, stroke and death. The objective of this article is to report the authors' experience in 20 carotid body tumor resections. Methods:

Lus Henrique; Gil Frana; Caroline Gomes Bredt; Alessandra Vedolin

257

Efeitos de um programa de orientao de atividade fsica e nutricional sobre o nvel de atividade fsica de mulheres fisicamente ativas de 50 a 72 anos de idade  

Microsoft Academic Search

Effects of an intervention program of physical activity and nutrition orientation on the physical activity level of physical- ly active women aged 50 to 72 years old The promotion of a physically active lifestyle in elderly people has been used as a strategy to promote improvement in health standards and quality of life. The objective of this study was to

Marcela Ferreira; Sandra Matsudo; Victor Matsudo; Glaucia Braggion

2005-01-01

258

COMPETIO ENTRE ESPCIES FLORESTAIS NATIVAS EM IRATI - PR, CINCO ANOS APS O PLANTIO (Competition of native forest tree species in Irati PR, five years after planting)  

Microsoft Academic Search

The objective of this study was to collect information in the behaviour and silvicultural characteristics for eight forest tree species nativa to the Irati region in the State of Paran, Brazil, five years after planting, when planted in pure stands in clear- cut areas. The studyied species are \\

Paulo Ernani; Ramalho Carvalho

259

"Cien Anos de Soledad" y el concepto de la "Caida Afortunada" ("One Hundred Years of Solitude" and the Concept of the "Fortunate Fall")  

ERIC Educational Resources Information Center

Shows the influence of R.W.B. Lewis' work about the fall of Adam on the Marquez novel. Marquez' view coincides with Lewis' that Adam's fall should be considered not as a lapse from divine favor, but as an actual rise to the normal human level. (DS)

Dario Carrillo, German; Stults, Barry

1972-01-01

260

Comparao do desempenho funcional de crianas portadoras de sndrome de Down e crianas com desenvolvimento normal aos 2 e 5 anos de idade  

Microsoft Academic Search

Comparison of functional performance among children with Down Syndrome and children with age- Comparison of functional performance among children with Down Syndrome and children with age- Comparison of functional performance among children with Down Syndrome and children with age- Comparison of functional performance among children with Down Syndrome and children with age- appropriate development at 2 and 5 years of

Marisa Cotta Mancini; Priscila Carvalho e Silva; Sabrina Corra Gonalves; Simone de Medeiros Martins

2003-01-01

261

Swath Bathymetry Surveys of the Monterey Bay Area from Point Ano Nuevo to Moss Landing, San Mateo, Santa Cruz, and Monterey Counties, California  

USGS Publications Warehouse

This report describes swath bathymetry and backscatter data acquired by the U.S. Geological Survey on the continental shelf within the Monterey Bay National Marine Sanctuary between Point A?o Nuevo and Moss Landing, in San Mateo, Santa Cruz, and Monterey Counties, Calif. The survey was done for the California Seafloor Mapping Program (CSMP), in field activities S-7-09-MB and S-10-09-MB, by the Western Coastal and Marine Geology (WCMG) Team of the U.S. Geological Survey (USGS). The data were aquired in two seperate surveys: (1) between August 13, 2009 and September 3, 2009, personnel from WCMG completed field activity S-7-09-MB, from Point A?o Nuevo south to Table Rock, as well as a block west of Soquel Canyon; (2) between October 12 and December 16, 2009, WCMG conducted field activity S-10-09-MB, surveying between Table Rock and Moss Landing.

Ritchie, Andrew C.; Finlayson, David P.; Logan, Joshua B.

2010-01-01

262

Literacy Learning Parties for 3-5 Year Olds. Activity Book = Fiestas de aprendizaje de alfabetismo para ninos de 3-5 anos. Libro de actividades.  

ERIC Educational Resources Information Center

Noting that family members are a child's first teachers and set the course for future success, this activity book of "literacy learning parties" presents 10 activities that can be used at home to practice the skills and ideas learned at parent literacy workshops. Presented in English and Spanish versions, the activity book discusses the importance

Daniels, Ellen R.

263

Estado nutricional de crianas ndias do Alto Xingu em 1980 e 1992 e evoluo pondero-estatural entre o primeiro e o quarto anos de vida  

Microsoft Academic Search

This study focused on the under-five population of the Alto Xingu region in Brazil, with the following objectives: (1) to evaluate height and weight increment from the first through the fourth years of life and (2) to compare nutritional status in 1980 and 1992. Height and weight increases were evaluated in 81 children. Weight and height were measured in 264

Mauro Batista de Morais; Ulysses Fagundes Neto; ngela Peixoto de Mattos; Roberto Geraldo Baruzzi

2003-01-01

264

Influence of lean body mass on cardiopulmonary repercussions during the six-minute walk test in patients with COPD* Influncia da massa magra corporal nas repercusses cardiopulmonares durante o teste de caminhada de seis minutos em pacientes com DPOC  

Microsoft Academic Search

Objective: Although lean body mass (LBM) has been associated with mortality in patients with COPD, its influence on functional limitation is not clear. The objective of this study was to analyze the cardiopulmonary variables in COPD patients with or without LBM depletion, prior to and after the six-minute walk test (6MWT). Methods: We evaluated COPD patients, 32 with LBM depletion

Nilva Regina; Gelamo Pelegrino; Paulo Adolfo Lucheta; Fernanda Figueira Sanchez; Mrcia Maria Faganello; Renata Ferrari; Irma de Godoy

2009-01-01

265

Influncia da massa magra corporal nas repercusses cardiopulmonares durante o teste de caminhada de seis minutos em pacientes com DPOC* Influence of lean body mass on cardiopulmonary repercussions during the six-minute walk test in patients with COPD  

Microsoft Academic Search

Objective: Although lean body mass (LBM) has been associated with mortality in patients with COPD, its influence on functional limitation is not clear. The objective of this study was to analyze the cardiopulmonary variables in COPD patients with or without LBM depletion, prior to and after the six-minute walk test (6MWT). Methods: We evaluated COPD patients, 32 with LBM depletion

Nilva Regina; Gelamo Pelegrino; Paulo Adolfo Lucheta; Fernanda Figueira Sanchez; Mrcia Maria Faganello; Renata Ferrari; Irma de Godoy

2009-01-01

266

STUDIES ON THE TRANSFER OF LYMPH NODE CELLS XlI. THE EFFECT OF ANTI-RABBIT-LEucoCTTE SEI~UXt ON TaX TRANSFER OF ANTIGEN-INCUBATED LYMPH NODE CELLS  

Microsoft Academic Search

A previous communication described the effects of pre-injection of rabbit blood leucocytes in experiments involving the homologous transfer of rabbit lymph node ceils. It was reported there that the usual appearance of anti- bodies in the sera of the recipient rabbits, after transfer of antigen-incubated lymph node cells, did not occur if leucocytes obtained from the donor animals were injected

SUSANNA HARRIS; T. N. HARRIS; MIRIAM B. FARBER

267

Bacterial, fungal and yeast contamination in six brands of irreversible hydrocolloid impression materials Contaminao por bactrias, fungos e leveduras em seis marcas comerciais de materiais de moldagem base de hidrocolide irreversvel  

Microsoft Academic Search

This study assessed the level of contamination of six commercially available ir- reversible hydrocolloids (two containing chlorhexidine) and identified the contamination present in the materials. Petri dishes containing selective and enriched culture media were inoculated with alginate powder (0.06 g), in triplicate. After incubation (37C\\/7 days), the colony-forming units (CFU) were counted and Gram stained. Biochemical identification of the different

Luciana Assirati Casemiro; Carlos Henrique; Gomes Martins; Fernanda de Carvalho; Panzeri Pires; Heitor Panzeri; Isabel Yoko Ito

268

Estudo comparativo do envelhecimento do sistema capilar dos msculos: diafragma e reto anterior do abdome em ratos. Futuro modelo para o estudo de atividade fsica?  

Microsoft Academic Search

SUMMARY In the present study, the age-related changes of the capillary system were investigated in the diaphragm and rectus abdominis muscles of 1, 8, and 18-month-old rats. The activation patterns of these muscles differ in the sense that the diaphragm is regularly mobi- lized many times at each minute during the entire life of the animal, while the rectus abdominis,

Luiz E. Garcez Leme; Consuelo Junqueira Rodrigues; Aldo Junqueira Rodrigues Jr.; Eurico Thomaz de Carvalho Filho; Mariana Deckers Leme; Toms P. Leivas

2005-01-01

269

ESTUDO DE IMPACTO AMBIENTAL DE REAS VERDES:UMA PROPOSTA DE PLANEJAMENTO E MONITORAMENTO  

Microsoft Academic Search

The environmental impact study must be a methodological instrument to planning and control process environmental of green areas. The boarding of this problematic borne from the observations and reflections on the social relations chains and of interests conflicts that constitutes the society x environment. This work has for goal to discuss and to introduce the methodologies used in environmental impact

Gustavo Henrique de Oliveira

2008-01-01

270

Estimativa do fluxo de amnia na interface ar-mar na Baa de Guanabara: estudo preliminar  

Microsoft Academic Search

+ ) were measured in surface waters of the Guanabara Bay. Concentrations varied from 2 to 143 ?mol L -1 . Ammonia exchange at the air-sea interface was quantified using a numerical model. No measurement of NH 3 concentration in air (c air ) was performed. Thus, calculations of NH 3 flux were based on the assumptions of c air

Giselle Parno Guimares; William Zamboni de Mello

2006-01-01

271

ESTUDO DA VIABILIDADE TCNICO - ECONMICA DE UMA FABRICA DE BRIQUETES PARA FINS DE GERAO ENERGTICA  

Microsoft Academic Search

Current scenario indicates that renewable energy sources are expected to play an increasingly important role in the world energy matrix, mainly due to a potential reduction of fossil fuel reserves and environment issues. In this context, the use of alternative energy sources, specifically biomass briquettes, shows up as a great opportunity. However, it is known that an economic feasibility assessment

JOS DILCIO ROCHA

272

Estudo sobre excrecao de (sup 210) Po na urina. (Excretion of (210) Po in urine).  

National Technical Information Service (NTIS)

The urine of mines's workers is analysed to detect the presence of (210) Po. The results were compared the workers and with a control population. Cigarettes samples were analysed and confirmed the (210) presence. The control population was divided in smok...

A. M. G. Fonseca Azeredo

1988-01-01

273

ESTUDO COMPARATIVO DA CARBONIZAO DE TRS ORIGENS DE TURFAS EM RELAO MADEIRA DE Eucalyptus grandis  

Microsoft Academic Search

The objective of this paper was to compare the charcoal obtained in laboratory conditions from peat, with the charcoal obtained from Eucalyptus grandis wood. It was utilized three origins of peat from distinct regions of Brazil. The charcoal was produced in an electrical furnace at heat rate of 50oC\\/30', from 100C up to 450-500C. The most important results were: the

DIMAS AGOSTINHO DA SILVA

274

ESTUDO ELETROQUMICO DE RESISTNCIA CORROSO LOCALIZADA DE AOS INOXIDVEIS PARA APLICAES COMO BIOMATERIAIS  

Microsoft Academic Search

Sandvik Bioline High-N and 316 LVM are two austenitic stainless steels specially developed to applications as biomaterials. Their localized corrosion resistance were investigated using electrochemical methods including potentiodynamics cyclic polarization and potentiostatic polarization, in a salt solution attenuated by fosfate and in solution for simulated crevices, i. e., solutions planned for tests of crevice corrosion. Sandvik SAF 2507 (a high-performance

C. Ulfvin

275

Estudo radiocientico em algas marinhas bentonicas. (Radiokinetic study in benthic marine algae).  

National Technical Information Service (NTIS)

The influx and outflux kinetics of some radionuclides in algae of the Rio de Janeiro coastline, were studied in order to select bioindicators for radioactive contamination in aquatic media, due to the presence of Nuclear Power Stations. Bioassays of the c...

V. Azevedo Gouvea

1981-01-01

276

Estudo do comportamento hidrolgico do Rio So Francisco e seus principais afluentes  

Microsoft Academic Search

The So Francisco Basin has 36 major tributaries, of which 19 are perennial. The areas of drainage of these tributaries, except for the Raverde Livarde, are located in the area of the basin not included in the drought region, representing 50% of the total area of the basin. In this study the hydrological behavior of the So Francisco River and

Silvio B. Pereira; Fernando F. Pruski; Demetrius D. da Silva; Mrcio M. Ramos

2007-01-01

277

Eletrodinamica quantica sem massa nua do eletron: um estudo variacional. (Massless quantum electrodynamics: a variational study).  

National Technical Information Service (NTIS)

The variational method was used to study the probable existence of a compound vacuum in quantum electrodynamics. An Ansatz containing a condensate of electron-positron pairs was investigated and an optimization equation for the condensate wave function fo...

P. C. Piquini

1990-01-01

278

GERENCIAMENTO DE EFLUENTES DE ABATEDOUROS AVCOLAS ESTUDO DE CASO (SUPER FRANGO)  

Microsoft Academic Search

The poultry industry has a very important paper in the economical and social development of an area. In the discount process the water is the m ain natural input used that at the end of the process generates a high effluents flow. Having, th erefore, the need of the adoption of system of treatment of those effluents to reduce the

Jos Fernandes Jnior; Osmar Mendes

279

Um Estudo sobre Gerncia de Configurao de Software aplicada ao Desenvolvimento Baseado em Componentes  

Microsoft Academic Search

This study aims to analyze the Software Configurati on Management (SCM) approach for conventional development and identify points that need to be tai lored to support Component Based Development (CBD). We believe that adapting SCM process to support CBD by applying variants for producer and consumer teams is the best way to take advantage of the benefits of SCM a

Ribeiro Dantas; Hamilton Oliveira; Leonardo Gresta; Paulino Murta; Cludia Maria; Lima Werner

280

Transporte e eqidade: ampliando o conceito de sustentabilidade pelo estudo de caso de Braslia  

Microsoft Academic Search

It is known that transportation systems based on private automobiles are not sustainable. However, most developed and developing countries are experiencing increasing rates of automobile ownership with consequential decreases in public transportation ridership, bicycling, and walking. The disconnection between transportation planning and sustainability affects many countries but is more devastating in cities of developing countries. Unsustainable transportation systems exacerbate issues

Carolina Pescatori; Candido da Silva; Caru Bowns

2008-01-01

281

Estudo anatmico do trajeto da artria vertebral na coluna cervical inferior humana  

Microsoft Academic Search

SUMMARY The increasing use of new techniques and materials for surgical treatment of lower cervical spine conditions has come along with an increasing concern regarding potential complications that might occur. The transpedicular fixation technique, frequently used in other spine levels, is used on the cervical spine, while providing more stability than other techniques, it may cause serious complications such as

Ben Hur Junitiro Kajimoto; Renato Luis Dainesi Addeo; Gustavo Constantino de Campos; Douglas Kenji Narazaki; Leonardo dos Santos Correia; Marcelo Poderoso de Arajo; Alexandre Fogaa Cristante; Alexandre Sadao Iutaka; Raphael Martus Marcon; Reginaldo Perilo Oliveira; Tarcsio Eloy Pessoa de Barros Filho

2007-01-01

282

Tcnica para o estudo da anatomia da epiderme foliar de batata  

Microsoft Academic Search

Even though potato (Solanum tuberosum) is an economically important crop, information about leaf characteristics of anatomical structure has not been well studied. Studies of leaf epidermis have significance for basic fields as ecology and physiology and for applied fields as plant pathology and breeding. The objective of this research was to identify a fast and easy technique to prepare semi-

Fernanda Bastos Segatto; Dilson Antnio Bisognin; Marlova Benedetti; Liege Camargo da Costa; Marcos Vicente Rampelotto; Fernando Teixeira Nicoloso

2004-01-01

283

Estudo da anisotropia optica do oxido de niobio. (Study of optics anisotropy of niobium oxide).  

National Technical Information Service (NTIS)

This work shows the use of ''in-situ'' optical techniques in electrochemical experiments to determine the refractive indexes of an anisotropic film. ''In situ'' reflectance measurements allow to study the behavior of a film during its growth process: in o...

N. G. Ferreira F. Decker M. Fracastoro-Decker

1988-01-01

284

ESTUDO DA RESISTNCIA COMPRESSO DE CONCRETOS LEVES PRODUZIDOS COM ARGILA EXPANDIDA NACIONAL  

Microsoft Academic Search

The lightweight concrete can be used in the civil engineering for structural aims or filling. The use of this material allows benefits by the reduction of the weight of the structures and, when used in coverings or closures, in the thermal natural conditioning of the environments. This study analyses the potentiality of the use of the expanded clay produced in

R. A. Cremonini

2009-01-01

285

Um modelo para analisar o problema de filas em caixas de supermercados: um estudo de caso  

Microsoft Academic Search

In this study we applied queueing theory to analyze the problem of congestion in supermarket check- outs. We are particularly concerned with modeling the mean user waiting time in the queue, viewed as an important component of the user service, as a function of the capacity of the system (i.e., the number of cashiers in a given time period). Three

Reinaldo Morabito; Flavio C. R. de Lima

2000-01-01

286

Estudo experimental das propriedades seletivas de ressoadores coaxiais. (Experimental study of coaxial resonators selective properties).  

National Technical Information Service (NTIS)

This work studies the selective properties of open cylindrical coaxial cavities. The experimental results are compared to theory which includes ohmic effects. (A.C.A.S.). (Atomindex citation 24:004274)

P. J. Castro J. J. Barroso R. A. Correa

1992-01-01

287

Uso da maconha e suas representaes sociais: estudo comparativo entre universitrios  

Microsoft Academic Search

ABSTRACT. The purpose of this research was to compare the social representations of university students who are getting their degree in the technological, health and law areas, on the use of marijuana. Sixty (60) university students took part in this re search, both sexes, aged from 22 to 30 years old. Semi-structured interviews were used and the collected material

Maria da Penha de L. Coutinho; Ludgleydson Fernandes de Arajo; Bernard Gontis

2004-01-01

288

Crianas em situao de rua de Porto Alegre: um estudo descritivo  

Microsoft Academic Search

The present paper presents a description of a sample of street children from a central area of Porto Alegre, Brazil. Twenty children, twelve boys and eight girls, aged six to 12 years were interviewed. The interview was structured to investigate the relationships between the children and their family, work and school activities, and the way they spent their time. The

Aline Santos e Silva; Caroline Tozzi Reppold; Clarisse Longo dos Santos; Luciano Telles Prade; Milena Rosa Silva; Slvia Helena Koller

1998-01-01

289

Um estudo sobre a permanncia e a evaso na Educao a Distncia 1  

Microsoft Academic Search

The article describes a research carried out in distance education. In this experience it was our aim to investigate the evasion in this education system, distance education. The interactions were analysed in the light of some categories in order to identify the dialoguesconversations in the perspective of Paulo Freires and Jean Piagets theories. It showed the need of dialogue conversation

Rute Vera; Maria Favero

290

VARIVEIS MACROECONMICAS E O IBOVESPA: UM ESTUDO DA RELAO DE CAUSALIDADE  

Microsoft Academic Search

The purpose of this study is to analyze the causality relationship among a sort of selected macroeconomic variables and the return of the Brazilian stock market, using multivariate VAR methodology. The following macroeconomic variables were used in the study: interest rate (SELIC), exchange rate (PTAX) and inflation (IPCA). The Brazilian stock market was represented by the Sao Paulo Stock Index

Tabajara Pimenta Junior; Rene Hironobu Higuchi

291

Gesto da Qualidade nas Agroindstrias: Um Estudo Exploratrio no Municpio de Marau-RS  

Microsoft Academic Search

This research had as objective identifies the quali ty eras, proposed by Garvin (2002), in which the agri-food industry of one city of Brazil (Marau-RS) are framed, as well as to identify the actions executed by these companies, i n relation to the quality management, and the quality tools that these use. For that, an exploratory research was accomplished, and

IVO DE MORAES PASCHE; GABRIEL MURAD; BRASILIENSE DE EDUCA O

292

Perfil psicomotor na Praxia Global e Fina de crianas de trs a cinco anos pertencentes escola privada e pblica Psychomotor profile in global and Fine Praxis of 3 to 5 years old children of private and public schools  

Microsoft Academic Search

The objective of this study was to verify the psychomotor profile of preschool children of public and private schools. Sixty healthful children participated in the study: 30 of public school and 30 of private school; children were distributed equally; they were between 3 to 5 years old. After the consent of the responsible, the children were evaluated an only time.

Juliana Rodrigues Simes; Mariana Gigliotti Murijo; Karina Pereira; Travessa Jos Verssimo

2008-01-01

293

Como ayudar a su hijo a ser un buen lector: Con actividades para los ninos desde el nacimiento hasta los 6 anos (Helping Your Child Become a Reader: With Activities for Children from Infancy through Age 6).  

ERIC Educational Resources Information Center

When parents and other family members read with their children, help them with homework, talk with their teachers, and participate in school or other learning activities, they give their children a tremendous advantage. The foundation for learning to read is in place long before children enter school and begin formal reading instruction. Families

Lehr, Fran; Osborn, Jean

294

Foreign body aspiration in children and adolescents: experience of a Brazilian referral center* Aspirao de corpo estranho por menores de 15 anos: experincia de um centro de referncia do Brasil  

Microsoft Academic Search

Objective: To describe the clinical, radiological and endoscopic characteristics of foreign body aspiration among individuals under the age of 15 treated at a referral center in the city of So Lus, Brazil. Methods: This was a descriptive study using data from the medical charts of patients treated for foreign body aspiration at the Hospital Universitrio Materno Infantil between 1995 and

Slvia Teresa; Evangelista Vidotto; Marco Antonio Barbieri; Jos Albuquerque de Figueiredo Neto

295

O que ns aprendemos aps 30 anos de terapia intravesical com BCG no tratamento do cncer de bexiga superficial? What have we learned after 30 years of BCG intravesical therapy for superficial bladder cancer?  

Microsoft Academic Search

objectives: To discuss the role of bacillus Calmette-Gurin (BCG) immunotherapy in the treatment of superficial bladder cancer after 30 years of clinical experience. Methods: Research on LILACS and PubMed databases, including 31 clinical studies with scientific relevance and importance in the decision-making process. Results: The BCG therapy with induction and maintenance therapy seems to be the best practice in tumors

Marcos Tobias-Machado; Marcos Adolfo; Pereira Esteves; Eduardo Simes Starling; Antonio Carlos Lima

2009-01-01

296

What have we learned after 30 years of BCG intravesical therapy for superficial bladder cancer? O que ns aprendemos aps 30 anos de terapia intravesical com BCG no tratamento do cncer de bexiga superficial?  

Microsoft Academic Search

Objectives: To discuss the role of bacillus Calmette-Gurin (BCG) immunotherapy in the treatment of superficial bladder cancer after 30 years of clinical experience. Methods: Research on LILACS and PubMed databases, including 31 clinical studies with scientific relevance and importance in the decision-making process. Results: The BCG therapy with induction and maintenance therapy seems to be the best practice in tumors

Marcos Tobias-Machado; Marcos Adolfo; Pereira Esteves; Eduardo Simes Starling; Antonio Carlos; Lima Pompeo; Eric Roger Wroclawski

2009-01-01

297

O currculo tradicional de Anatomia satisfatrio para os estudantes do ltimo ano de medicina? Uma avaliao retrospectiva Does the existing traditional undergraduate Anatomy curriculum satisfy the senior medical students? A retrospective evaluation  

Microsoft Academic Search

objective: To present the results of a study concerning views and feedback from the interns and medical students about the Anatomy Curriculum, as well as their suggestions to design a Clinical Core Course in Anatomy. Methods: Interns at the end of their clinical year and medical students at the end of their final year were asked to evaluate the Anatomy

Zahid Ali Kaimkhani; Masood Ahmed; Musaed Al-Fayez; Muhammad Zafar; Asad Javaid

298

Does the existing traditional undergraduate Anatomy curriculum satisfy the senior medical students? A retrospective evaluation O currculo tradicional de Anatomia satisfatrio para os estudantes do ltimo ano de medicina? Uma avaliao retrospectiva  

Microsoft Academic Search

Objective: To present the results of a study concerning views and feedback from the interns and medical students about the Anatomy Curriculum, as well as their suggestions to design a Clinical Core Course in Anatomy. Methods: Interns at the end of their clinical year and medical students at the end of their final year were asked to evaluate the Anatomy

Zahid Ali Kaimkhani; Masood Ahmed; Musaed Al-Fayez; Muhammad Zafar; Asad Javaid

2009-01-01

299

Perfil da atividade de pesquisa publicada nos anais dos congressos brasileiros de pneumologia e tisiologia nos ltimos vinte anos* Profile of research published in the annals of the Brazilian Pulmonology and Phthisiology Conferences held over the last twenty years  

Microsoft Academic Search

Objective: To increase the knowledge base regarding pulmonology research in Brazil. Methods: A retrospective, observational study of the abstracts published in the Annals of the Brazilian Pulmonology and Phthisiology Conferences held from 1986 to 2004, quantifying the institutions of origin by geographic distribution and type, as well as categorizing the abstracts by study design and topic. Results: A total of

ALEXANDRE TODOROVIC FABRO; HYUNG BOK YOO; HELENA ABRAHO; THOMAZ QUELUZ

2006-01-01

300

El buen comienzo de la lectura: Lo que pueden hacer los padres durante los primeros cinco anos (Reading Right from the Start: What Parents Can Do in the First Five Years).  

ERIC Educational Resources Information Center

Intended to provide concrete ways for parents to help children become readers and writers, this Spanish-language, easy-to-read, illustrated booklet uses the everyday routines that parents follow with their children--bathing and dressing, eating, shopping, doing household chores--to demonstrate how to build vocabulary, learn about conversations,

Bickart, Toni S.; Dodge, Diane Trister

301

Empadre de Alpacas al Ano de Edad Usando Pasturas en la Region Altoandina del Peru (Breeding of Female Alpacas at One Year of Age Using Irrigated Pastures in the Altoplano of Peru),  

National Technical Information Service (NTIS)

At the SAIS 'Pachacutec', Production Unit 'Conocancha' an experiment were conducted, with the objective of the feasibility of breeding female alpacas of one year old; under irrigated pastures. The results indicated, that the female alpacas maintained in a...

A. Florez F. Bryant J. Gamarra J. Pfister J. Arias

1986-01-01

302

A sociabilidade em ondas sonoras: as audincias e o rdio dos anos 50 e 60 em Fortaleza The sociability in sonorous waves: the audience and the radio of years 50 and 60 in Fortaleza  

Microsoft Academic Search

The present study reflects on the meanings of the sociabilities mediated for the radio from two distinct perspectives: of the producers of the radio in the fifties and sixty of century XX and of its listeners in the same period, in the city of Fortaleza, located in the Northeast region of Brazil. This period of time presents itself as extremely

Roberta Manuel; Barros de Andrade; Erotilde Honrio Silva

303

Estudo de Polimorfismos Genticos na Insuficincia Cardaca (GenetIC): delineamento do estudo e metodologia Study of Genetic Polymorphisms in Heart Failure (GenetIC): outline of the study and methodology  

Microsoft Academic Search

Background: Several studies demonstrate wide individual variability in the development and responses to treatment among patients with heart failure (HF). Part of this individual variability is due to genetic factors. Genetic polymorphisms (GP) are non-lethal genetic modifications found in ?1% of the population that may be related both to prognoses and responses to treatment for HF. Many studies associate GP

Oziel Marcio; Araujo Tardin; Monica Velozo; Sabrina Bernardez; Henrique Balieiro; Bianca de Cssia Cavalieri; Sergio Schermont; Thiago Alves; Sabrina Lindemberg; Srgio Salles Xavier; Leandro Pessoa; Antonio Claudio; Lucas da Nbrega; Georgina Severo Ribeiro; Evandro Tinoco Mesquita

304

Revista de Documentacao de Estudos em Linguistica Teorica e Aplicada (DELTA): Novos Estudos em Gamatica Gerativa (Journal of Documentary Studies in Theoretical and Applied Linguistics [DELTA]: New Studies in Generative Grammar).  

ERIC Educational Resources Information Center

This issue contains the following articles: "Resumption and Last Resort" (Joseph Aoun); "Existentials, A-Chains, and Reconstruction" (Norbert Hornstein); "How Long Was the Nineteenth Century" (David Lightfoot); "Formal Features and Parameter Setting: A View From Portuguese Past Participles and Romance Future Tenses" (Lucia Lobata); "Revisiting

Revista de Documentacao de Estudos em Linguistica Teorica e Aplicada, 2000

2000-01-01

305

Revista de Documentacao de Estudos em Linguistica Teorica e Aplicada (DELTA): Novos Estudos em Gamatica Gerativa, 2001 (Journal of Documentary Studies in Theoretical and Applied Linguistics [DELTA]: New Studies in Generative Grammar, 2001).  

ERIC Educational Resources Information Center

These two issues of volume 17, include the following articles: "The Competing Motivation Model in the Functional Domains of Negation" (M. Angelica Furtado da Cunha); "Discursive Resonance and Politeness in Reading and Writing Practices" (Silvana Serrani Infante); "The Acquisition of Relative Clauses in Brazilian Portuguese" (Maria Cecilia

Barbara, Leila, Ed.; Rajagopalan, Kanavillil, Ed.

2001-01-01

306

REAS VERDES URBANAS: AVALIAO CONCEITUAL E METODOLGICA A PARTIR DO ESTUDO DE CASO NA CIDADE DE PAULNIA - SO PAULO, BRASIL  

Microsoft Academic Search

Discussions related to urban environmental quality play important emphasis in the present. Several scientific studies have been developed in order to contribute to developments related to the theme. Among them, many believe the presence of vegetation as an important indicator of urban environmental quality. Although there is no consensual definition, the term used to designate the urban vegetation is \\

Lindon Fonseca Matias; Danbia Caporusso

307

ESTUDO COMPARATIVO DE DIFERENTES FORMAS DE TRATAMENTO DE CONDILOMAS ACUMINADOS COMPARATIVE STUDY OF DIFFERENT WAYS OF TREATMENT ON GENITAL WART  

Microsoft Academic Search

Introduo: atualmente, a infeco genital pelo papilomavrus humano (HPV) constitui-se na DST mais prevalente nos diferentes grupos etrios e na maior parte das unidades de sade pblicas. Normalmente a DST que mais se associa a outras infeces genitais. Objetivos: observar difer- entes formas teraputicas de pacientes apresentando condiloma acuminado. Observar a ocorrncia de associao com sfilis. Mtodos: foram estuda-

Tomaz B Isolan; Gutemberg L Almeida Filho; Mauro RL Passos; Renato S Bravo

308

Determinao da sobrecarga de trabalho em exerccios de musculao atravs da percepo subjetiva de esforo de mulheres idosas - estudo piloto  

Microsoft Academic Search

The purpose of this study was to verify the validity of rate perceived exertion (RPE) as parameter for determination of workload intensity (WI) in muscle strength training of elderly women. The sample was consistuded by 10 women from 59 to 84 years (x: 65.10 + 7.65 years). The WI to perform was determined by random and the subjects performed three

Vagner Raso; Sandra Matsudo; Victor Matsudo

309

Estudo das caracteristicas de celulas solares de silicio monocristalino. (Study of the characteristics of single crystal silicon solar cells).  

National Technical Information Service (NTIS)

Systems of measurement were developed for the characterization of single crystal silicon solar cells. For that, the curves I x V were measured in the dark and for different intensity of illumination. Curves of spectral response and of capacitance as a fun...

A. F. Beloto

1983-01-01

310

Uso de imagens LANDSAT como subsdio ao estudo da disperso de sedimentos na regio da foz do rio So Francisco  

Microsoft Academic Search

The construction of a sequence of water reservoirs along the lower So Francisco river basin has caused a severe change in the supply of water and sediments to the coastal zone. We present in this paper a first attempt to use Landsat data to estimate de Suspended Sediment Content (SSC) of the coastal plume. A simple log model proposed by

Joo Antonio Lorenzzetti; Eduardo Negri

311

Estudo da ativacao das pecas componentes do ciclotron CV-28. (Activation study of the cyclotron CV-28 component parts).  

National Technical Information Service (NTIS)

The objective of this paper is to find out the possible nuclear reactions of the accelerated particles with the Cyclotron component parts during normal operation in order to know those produced by activation. This enables the implementation of suitable ra...

P. W. Fajardo

1991-01-01

312

Avaliao dos dados MODIS para o estudo da cobertura vegetal da Floresta Nacional do Tapajs no estado do Par  

Microsoft Academic Search

This paper presents an evaluation of Moderate Resolution Imaging Spectroradiometer (MODIS) images for studying vegetation cover in the Tapajs National Forest region, located in the Par State, Amazon region. For this, MODIS image at 250 m (pixel resolution) obtained in different season of the year are analyzed to discriminate and characterize forested and converted areas in this study site. MODIS

YOSIO EDEMIR SHIMABUKURO; JANE DELANE VERONA; SILVIA PARDI LACRUZ; ALFREDO HUETE; LAERTE FERREIRA; HIROKI YOSHIOKA; EDSON SANO

313

A Study of Similarity Functions in the Planetary Boundary Layer Um Estudo das Funcoes de Similaridade DA Camada Limite Planetaria.  

National Technical Information Service (NTIS)

Micrometeorological data obtained over tropical savannah (Koorin Experiment, 16 deg 16'S; 133 deg 23'E, Australia) were used to evaluate the similarity functions A, B and C in the planetary boundary layer. Different flux profile relationships, and scaling...

J. C. S. Chagas

1982-01-01

314

Study of the Surface Layer on an Extremely Rough Surface US Estudo DA Camada Limite Superficial Sobre Superficie Extremamente Rugosa.  

National Technical Information Service (NTIS)

Experimental data for the surface layer obtained over a rough surface of a tropical savannah were used to compute the stability functions for momentum (phi sub M) and sensible heat (phi sub H) under unstable conditions. The computed functions are consider...

L. D. A. Sa L. C. B. Molion

1983-01-01

315

Colchicina no tratamento da fase inflamatria da oftalmopatia de Graves: um estudo prospectivo e randomizado com prednisona  

Microsoft Academic Search

Purpose: To investigate if colchicine is valuable in the treatment of Graves' ophthalmopathy (GO), we compared its effect with prednisone in 22 patients during the inflammatory phase of GO. Methods: All patients, similar in age, sex and smoking habits, were euthyroid for at least 3 months and randomly divided into two groups, one treated with colchicine (1.5 mg\\/day) and the

Paulo Gois Manso; ngela Maria Borri Wolosker; Elias Rodrigues de Paiva; Antonio Carlos Lopes; Reinaldo Perrone Furlanetto

316

Alteracoes osseas uremicas - Estudo clinico laboratorial, cintigrafico e radiologico. (Uremic bone diseases - Clinical laboratory, scintigraphic and radiological study).  

National Technical Information Service (NTIS)

This paper evaluated the uremic bone disease in 10 patients on peritoneal dialysis, 10 on hemodialysis and 10 submited to renal transplantation. According to biochemical evaluation we observed hypocalcemia in some patients on dialysis and hipercalcemia in...

W. C. F. Silva

1982-01-01

317

Formas Plurais no Franchising de Alimentos: Evid?ncias de Estudos de Caso na Frana e no Brasil  

Microsoft Academic Search

O problema de formas plurais importante tema de interesse na literatura dedicada ao franchising. A coexistncia de lojas prprias e unidades franqueadas em uma mesma rede fato bem conhecido, merecendo a grande ateno que vem recebendo dos pesquisadores. Acontece, porm, que formas organizacionais no franchising so mais diferenciadas do que sugere a literatura. De fato, informaes oriundas de

Vivian Lara; S. Silva; Paulo Furquim de Azevedo

318

Estudo Reolgico de Tintas de Poliuretano Contendo PAni-DBSA Aplicadas como Materiais Absorvedores de Microondas (8-12 GHz)  

Microsoft Academic Search

Resumo: Neste trabalho preparou-se tintas condutoras baseadas em blendas de poliuretano contendo polianilina em diferentes propores. Estudou-se as influncias do mtodo de dopagem da polianilina (PAni) e do tempo de processamento da mistura no comportamento reolgico da tinta. Verificou-se que a dopagem, com o cido dodecilbenzeno sulfnico (DBSA), por processamento reativo (PAni-DBSA-pr) afetou, de maneira mais acentuada, a viscosidade da

Rogrio S. Biscaro; Edson C. Botelho; Centro ITA; Tcnico Aeroespacial; Marta F. K. Takahashi

2002-01-01

319

Tcnicas avanadas de sensoriamento remoto aplicadas ao estudo de mudanas climticas e ao funcionamento dos ecossistemas amaznicos  

Microsoft Academic Search

This paper aims to assess the contribution of remote sensing technology in addressing key questions raised by the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA). The answers to these questions foster the knowledge on the climatic, biogechemical and hydrologic functioning of the Amazon, as well as on the impact of human activities at regional and global scales. Remote sensing methods

Evlyn Mrcia Leo de Moraes Novo; Laerte Guimaraes Ferreira; Cludio Barbosa; Claudio Carvalho; Edson E. Sano; Yosio Shimabukuro; Alfreado Huete; Christopher Potter; Dar. A. Roberts; Laura L. Hess; John J. Melack; Hiroki Yoshioka; Steven Klooster; Vipin Kumar; Ranga Myneni; Piyachat Ratana; Kamel Didan; Tomoaki Miura

2005-01-01

320

Realizacao Experimental E Estudos Teoricos de Absorvedores de Radio Frequencia (Experimental Development and Theoretical Studies of Radio-Frequency Absorbers).  

National Technical Information Service (NTIS)

A mathematical model based on the equivalence with a sequence of lossy transmission lines has been developed and applied, by numerical calculus, to the study of radio-frequency absorbers of piramidal shape, made of polyurethane foam impregnated with finel...

J. L. L. M. Massa

1991-01-01

321

Centro de Estudos de Avifauna Ibbrica, Rua do Raimundo 119, Apart. 535, 7000-506 tvora, Portugal  

Microsoft Academic Search

In 1998 and 1999, we carried out a systematic survey of the Osprey (Pandion haliaetus) in the Cape Verde Islands, to evaluate its population and conservation status. Some poorly surveyed areas were revisited in the summer of 2001 to complete our status assessment. We found an estimated 72-81 pairs on the archipelago, of which 94% were concentrated in the northern

PEDRO VAZ PINTO

322

ANLISE DAS VULNERABILIDADES DE SEGURANA EXISTENTES NAS REDES LOCAIS SEM FIO: UM ESTUDO DE CASO DO PROJETO WLACA  

Microsoft Academic Search

The 802.11x standard for wireless network has been widely adopted by large corporations and institutions during its daily tasks, forasmuch the productivity increase produced by flexibility and mobility found in these new sorts of wireless equipments have provided great operational advantages. Nevertheless, there are some important security issues that should be take in consideration while using this new technology. Having

Lidiane Parente Andrade; Daniel Nelo Soares; Mauro Margalho Coutinho; Antnio Jorge; Gomes Abelm

2003-01-01

323

Uso do transporte sseo no tratamento de perda ssea segmentar extensa da tbia: estudo experimental em ces  

Microsoft Academic Search

The aim of this study was to evaluate the bone transport technique using the Ilizarov external fixator for the treatment of the extensive segmental bone defect induced in the tibia of seven dogs. An Ilizarov frame assembled with one proximal half-ring, one middle ring and one distal ring, all connected to each other, was used. Thirty percent of the tibia

S. C. Rahal; R. S. Volpi; L. C. Vulcano

2005-01-01

324

Mortalidade materna: um estudo dos nveis e das causas de bitos no Mxico e no Brasil entre 2000 e 2004  

Microsoft Academic Search

A mortalidade materna se apresenta como um grave problema social e de sade pblica, representando um importante indicador para avaliar as condies de assistncia sade feminina. A preocupao com as mortes maternas est relacionada principalmente s repercusses sociais e econmicas que a morte de uma mulher acarreta para as famlias. Isto porque as mulheres assumem atribuies centrais na organizao

Ana Paula Belon

325

Contribuicao ao estudo dos ditionatos de terras-raras. (Contribution for the studies of rare earth dithionates).  

National Technical Information Service (NTIS)

The main objective of this work is the synthesis and investigation of some properties of rare earth dithionates. The rare earth dithionates were prepared from the respective sulphates, by the reaction of the latter with BaS sub(2) O sub(6) in aqueous solu...

L. C. Schmitz

1988-01-01

326

Estudos de Producao e Imobilizacao de Biocatalisadores com Actividade de Hidrogenacao (Production and Immobilization of Biocatalysts with Hydrogenase Activity).  

National Technical Information Service (NTIS)

The H2 uptake and evolution by free and immobilized cells of Desulfovibrio vulgaris was studied. The H2 uptake reaction was spectrophotometrically monitored by the reduction of methyl violet. Cell immobilization in 2% calcium alginate led to the highest r...

M. do Carmo R. L. F. Barreto

1989-01-01

327

UM ESTUDO DOS EFEITOS DE ALTERAES DO PREO DA NAFTA NA FORMAO DE PREOS DA CADEIA PETROQUMICA  

Microsoft Academic Search

Abstract: Input price volatility creates pressures for price adjustments, interfering in contracts between buyer and sales in petrochemical chain. One of the remarkable results pointed out by Fan (1998) is the role of price instability and uncertainty in the levels of vertical integration of the industry. This paper deals with the role of raw material price formula, basically nafta prices

Jos Maria F. J. da Silveira; Emerson Fernandes Maral

2006-01-01

328

Estudo de modelos de sintetizacao de dados de radiacao solar. (Study of solar radiation data synthesis models).  

National Technical Information Service (NTIS)

Two models for generating time series are studied - the ARMA model (Auto Regressive Moving Average) and the Markov process, in order to apply them in the synthesize of daily solar radiation, obtained from values of K(iota)t, the clearness index. To apply ...

M. H. Macagnan

1989-01-01

329

Um Estudo Comparativo de Formas de Segmentao Um Estudo Comparativo de Formas de Segmentao Um Estudo Comparativo de Formas de Segmentao Um Estudo Comparativo de Formas de Segmentao Um Estudo Comparativo de Formas de Segmentao de Mercado: uma Comparao entre VALS-2 e de Mercado: uma Comparao entre VALS-2 e de Mercado: uma Comparao entre VALS-2 e de Mercado: uma Comparao entre VALS-2 e de Mercado: uma Comparao entre VALS-2 e Segmentao por Variveis Demogrficas com Segmentao por Variveis Demogrficas com Segmentao por Variveis Demogrficas com Segmentao por Variveis Demogrficas com Segmentao por Variveis Demogrficas com Estudantes Universitrios  

Microsoft Academic Search

A segmentao de consumidores vem sendo utilizada no planejamento estratgico de empresas e instituies com objetivo de agrupar os consumidores segundo determinadas caractersticas que possam conferir homogeneidade a cada grupo. Este trabalho investigou a relao entre a segmentao por classes econmicas e a segmentao psicogrfica, que agrupa os consumidores segundo suas atitudes, estilos de vida, comportamento de compra e caractersticas

Alpio Ramos Veiga-Neto

330

Exploration Technology Program plans and directions  

NASA Technical Reports Server (NTRS)

A summary of the proposed Space Exploration Initiative (SEI) needs that have been identified is presented along with a detailed review of the status of SEI technology planning. Plans are also being formulated to implement an Exploration Technology Program (ETP) that will develop the major technologies required for SEI. The ETP will provide in the near term clear demonstrations of potential exploration technologies, results of research to support SEI architecture decisions, and a foundation of mature technology that is ready to be applied in the first round of SEI missions. A family of functional building blocks has been defined from which both lunar and Mars SEI mission architectures can be constructed.

Aldrich, Arnold; Rosen, Robert; Craig, Mark; Mankins, John C.

1990-01-01

331

Generic Environmental Impact Statement for License Renewal of Nuclear Plants. Supplement 40. Regarding Kewaunee Power Station.  

National Technical Information Service (NTIS)

This supplemental environmental impact statement (SEIS) has been prepared in response to an application submitted by Dominion Energy Kewaunee, Inc. (DEK) to renew the operating license for Kewaunee Power Station (KPS) for an additional 20 years. This SEIS...

2010-01-01

332

Workshop on Architecture Competence.  

National Technical Information Service (NTIS)

This report summarizes a workshop on architecture competence that was held at the Carnegie Mellon(R) Software Engineering Institute (SEI) in June of 2008. The SEI invited accomplished practitioners from government, academia, and industry to discuss key is...

J. Klein L. Bass M. Klein P. Clements R. Kazman

2009-01-01

333

Workshop on Analysis and Evaluation of Enterprise Architectures.  

National Technical Information Service (NTIS)

This report summarizes a workshop on analysis and evaluation of enterprise architectures that was held at the Carnegie Mellon Software Engineering Institute (SEI) in April of 2010. The SEI invited accomplished practitioners from government and industry to...

J. Klein M. Gagliardi

2010-01-01

334

In-situ investigation of solid-electrolyte interphase formation on the anode of Li-ion batteries with Atomic Force Microscopy  

NASA Astrophysics Data System (ADS)

Solid-electrolyte interphase (SEI) formation at highly ordered pyrolytic graphite (HOPG) surface has been studied with in-situ AFM. The morphology and thickness of both the top particle layer of the SEI and the bottom layer of the SEI that was caused by lithium insertion were investigated. The formation mechanism of the SEI was proposed accordingly. Ex-situ FESEM and EDS were also used to analyze the composition of the electrode after cycling to confirm the proposed mechanism.

Wang, Lixin; Deng, Da; Lev, Leonid C.; Ng, Simon

2014-11-01

335

Science and Engineering Indicators 2010. NSB 10-01  

ERIC Educational Resources Information Center

"Science and Engineering Indicators" (SEI) is first and foremost a volume of record comprising the major high-quality quantitative data on the U.S. and international science and engineering enterprise. SEI is factual and policy neutral. It does not offer policy options, and it does not make policy recommendations. SEI employs a variety of

Lehming, Rolf F.; Alt, Martha Naomi; Chen, Xianglei; Hall, Leslie; Burton, Lawrence; Burrelli, Joan S.; Kannankutty, Nirmala; Proudfoot, Steven; Regets, Mark C.; Boroush, Mark; Moris, Francisco A.; Wolfe, Raymond M.; Britt, Ronda; Christovich, Leslie; Hill, Derek; Falkenheim, Jaquelina C.; Dunnigan, Paula C.

2010-01-01

336

Science and Engineering Indicators 2012. NSB 12-01  

ERIC Educational Resources Information Center

Science and Engineering Indicators (SEI) is first and foremost a volume of record comprising the major high-quality quantitative data on the U.S. and international science and engineering enterprise. SEI is factual and policy neutral. It does not offer policy options, and it does not make policy recommendations. SEI employs a variety of

National Science Foundation, 2012

2012-01-01

337

A Study of Arizona's Teachers of English Language Learners  

ERIC Educational Resources Information Center

Background/Context: In September 2007, the Arizona State Board of Education adopted the Structured English Immersion (SEI) model proposed by the Arizona English Language Learner (ELL) Task Force.During the 2008-2009 academic year, it required all school districts to implement the SEI model.The SEI program, best known as the 4-hour English Language

Rios-Aguilar, Cecilia; Gonzalez Canche, Manuel S.; Moll, Luis C.

2012-01-01

338

Status and plans for exploration technology  

NASA Technical Reports Server (NTRS)

The present status of the Space Exploration Initiative (SEI) is discussed. SEI mission planning is reviewed, including various architectural options, their waypoints, and their strategic features. SEI technology needs and issues are examined in order of priority and technology development plans are described.

Aldrich, Arnold D.; Rosen, Robert; Harris, Leonard A.; Reck, Gregory M.; Mankins, John C.

1991-01-01

339

BUDDA (Bulge/Disk Decomposition Analysis) - um novo programa para anlise estrutural de galxias  

NASA Astrophysics Data System (ADS)

Tem sido prtica comum nos ltimos anos estudar a distribuio de luminosidade em galxias fazendo uso da informao contida em toda a imagem da galxia, j que esta tcnica tem se mostrado muito mais confivel do que o simples ajuste de perfis radiais de luminosidade. Atravs destes estudos bidimensionais, melhores resultados tem sido obtidos na anlise e.g. do Plano Fundamental, de correlaes entre os parmetros estruturais de galxias, de sub-estruturas como barras e anis nucleares etc. Apresentamos um novo cdigo bidimensional, o BUDDA, de anlise estrutural de galxias, que ser disponibilizado para a comunidade. Desenvolvido por ns, o cdigo determina os parmetros estruturais de galxias de forma prtica e robusta, e pode ser aplicado genericamente em qualquer estudo sobre a formao, evoluo e estrutura de galxias. O programa ainda permite a avaliao direta de sub-estruturas, atravs de imagens residuais que so obtidas ao se subtrair, das imagens originais, bojo e disco sintticos que melhor representam essas componentes da galxia sob considerao. Ser apresentada a forma de utilizao do cdigo, bem como sries de testes que atestam a sua funcionalidade. Alm disso, os resultados da aplicao do cdigo em uma amostra de 51 galxias sero expostos como exemplo prtico, e do seu enorme potencial de uso.

Gadotti, D. A.; de Souza, R. E.; Dos Anjos, S.

2003-08-01

340

A Introduo de Astronomia Bsica para Estudantes de 5 e 6 Sries do Ensino Fundamental  

NASA Astrophysics Data System (ADS)

Com intuito de despertar o interesse pelo estudo da astronomia, desenvolveu-se entre 2003 e 2006 no Centro Educacional do Servio Social da Indstria situado no municpio de Mau, So Paulo, um trabalho com durao de 12 meses para turmas de 11 e 12 anos, sendo trs turmas por perodo (2003 / 2004, 2004 / 2005 e 2005 / 2006). O trabalho realizado, objetivando a introduo da astronomia bsica com observaes de constelaes e das fases da Lua, permitindo estender-se a outros corpos celestes, iniciou-se com visita ao planetrio Mundo Estelar, localizado no Ipiranga, So Paulo levantou-se a questo da importncia do estudo da astronomia e foi lanado aos estudantes um trabalho de observao, com a proposta de localizar as constelaes e compreender as fases da Lua, para o registro de tais observaes, foram distribudos mapas celestes, pastas, planilhas de anotaes com lacunas para, constelaes, fases da Lua e relatos, onde os estudantes acrescentaram pesquisas e relatrios. Os resultados dos 346 estudantes foram que 86,7% (300) concluram a etapa de observao, destes 300 estudantes 43,3% (130) pesquisaram sobre as constelaes e 19,0% (57) localizaram at quatro constelaes. Dos 346 estudantes, 44,2% (153) registraram as fases da Lua equivocadamente e 10,4% (36) anexaram reportagens sobre astronomia. Conclui-se que os estudantes se dividiram em pesquisadores, sendo os estudantes que registraram e anexaram informaes e, os observadores que preencheram as planilhas de observaes, alm de desenvolverem habilidades e competncias relacionadas ao estudo da astronomia.

Gonzaga, E. P.; Voelzke, M. R.

2008-09-01

341

Desenvolvimento das cmeras de raios-X duros do satlite MIRAX  

NASA Astrophysics Data System (ADS)

O MIRAX (Monitor e Imageador de RAios-X) um projeto de desenvolvimento de um pequeno satlite astronmico de raios-X (~200 kg, ~240 W). A estratgia bsica da misso ser observar continuamente (~9 meses por ano) a regio central (~1000 graus2) do plano Galctico e realizar estudos espectroscpicos de banda larga (2-200 keV) e alta sensibilidade de um grande conjunto de fontes atravs de imagens com resoluo de ~6'. Isso proporcionar uma cobertura indita do "espao de descobertas" atravs da deteco, localizao, identificao e estudo detalhado de fenmenos imprevisveis, tais como transientes fracos de raios-X, novas rpidas de raios-X e bursts de raios gama, assim como o estudo de fontes com emisso persistente. Neste trabalho apresentamos o projeto das duas cmeras de raios-X duros (CXDs) do MIRAX, que iro operar na faixa de 10 a 200 keV. Cada CXD consistir de um plano de detectores CZT (Cd0,9Zn0,1Te) de 0,5 mm de resoluo espacial e 370 cm2 de rea total, e de uma mscara codificada com elementos quadrados de 1,3 mm de lado e 0,5 cm de espessura. A mscara ter dimenses de 315 cm 275 cm e ser montada a 700 cm de distncia dos detectores. Com essa configurao as CXDs tero 6' de resoluo angular e, quando colocadas a um ngulo de 29 entre si, as duas cmeras propiciam um campo totalmente codificado de 39 612' e um campo total de 76 44. Sero apresentadas simulaes de observaes da regio do plano Galctico com o conjunto formado pelas duas CXDs.

Braga, J.; Rothschild, R.; Staubert, R.; Heise, J.; Remillard, R.; D'Amico, F.; Jablonski, F.; Meja, J.; Carvalho, H.; Heindl, B.; Matteson, J.; Kendziorra, E.; Wilms, J.; in't Zand, J.; Kuulkers, E.

2003-08-01

342

Equilbrio e coordenao motora em pr-escolares: um estudo comparativo Balance and motor coordination in pre-school: a comparative study  

Microsoft Academic Search

The neuromotor development is a very complex mechanism. Understanding a small child development process means to be aware of its behavior changes, either psychomotor, emotion or cognitive. The objective of this study is to better understand these problems and to propose solutions that will respond to the needs of the children. We analyzed pre- school children regarding their static and

Maria Ftima de Sousa Bess; Joo Santos Pereira

343

QUALIDADE AMBIENTAL (?) EM REAS DE EXPANSO URBANA: UM ESTUDO DE CASO SOBRE A PERDA DA COBERTURA VEGETAL DO BAIRRO PARQUE VERDE - BELM\\/PA  

Microsoft Academic Search

O crescimento acelerado das cidades acarretou srios prejuzos qualidade ambiental das reas de expanso urbana, pois a ocupao urbana desordenada configurada nestes espaos substituiu de forma degradante o espao natural transformando-o em espao construdo sem qualquer planejamento urbano que levasse em conta a vegetao como componente essencial da qualidade de vida humana. Dentro deste contexto, o bairro Parque Verde,

CINCIA EDUCAO; SUELLEN CRISTINA; VIDAL COSTA; NVIA BERNA DA SILVEIRA CORRA

344

The study of minimal residual disease in breast cancer patients: a review O estudo da doena residual mnima em cncer de mama: uma reviso  

Microsoft Academic Search

The term minimal residual disease or micrometastasis refers to the presence of some tumor cells in normal tissues that cannot be detected by conventional methods, such as clinical examination, imaging methods, or routine laboratory analyses. Investigation of minimal residual disease in patients with breast cancer is currently done by assessment of the bone marrow or peripheral blood of these patients

Patricia Weinschenker Bollmann; Ana Rita; Burgos de Arajo; Fernando Luiz Affonso Fonseca; Roberta Sitnik; Rubia Ferraz Santana

345

Estudos polarograficos sobre o comportamento do indio (III) em meio aquoso de azoteto de sodio. (Polarographic studies about indium (III) behaviour in aqueous media of sodium azide).  

National Technical Information Service (NTIS)

The present study shows some polarographic behavior of indium (III) in azide media that is close those observed in a thiocyanate solution. The presence of azide ligand decreases the overpotential in the discharge of indium whose catalytic character can be...

R. Tokoro

1988-01-01

346

Contribuicao ao estudo de recuperacao e recristalizacao do zircaloy-4 laminado a frio. (Contribution to study on recovery and recrystallization of cold rolling zircaloy-4).  

National Technical Information Service (NTIS)

Recovery and recrystallization of work-hardened (40-60% - Cold rolling) Zircaloy-4 were studied between 200 and 600(sup 0) C with times varying from 15 to 240 minutes, from electrical resistance and hardness measurements. Activation energy calculation for...

A. I. C. Persiano

1977-01-01

347

Estudo de uma metodologia dosimetrica para plutonio por meio de analise radiotoxicologica em urina. (Study of a dosimetric methodology for plutonium by means of radiotoxicological analysis in urine).  

National Technical Information Service (NTIS)

The present study is mainly concerned with an internal individual monitoring program for workers dealing with (sup 239)Pu, by measuring the (sup 239)Pu content in their urine. General aspects related with the plutonium radiotoxicity and its chemical, phys...

S. A. Bellintani

1988-01-01

348

Prolegomenos a um estudo da lingua brasileira nos terreiros de origem africana (Prolegomena to a Study of the Brazilian Language of the Voodoo Rites of African Origin).  

ERIC Educational Resources Information Center

Determination of the authenticity of lexical items with Sub-Saharan origin in the voodoo rites of candomble and umbanda in Brazil requires establishing a socio-historical basis for the African diaspora and the current configuration of terreiros. The terreiros demonstrate varying linguistic repertoires according to their affiliation with candomble

Megenney, William W.

349

O uso de imagens CBERS no monitoramento da cobertura vegetal da bacia hidrogrfica do rio So Francisco - estudo de caso: Oeste Baiano  

Microsoft Academic Search

Due to the socioeconomic, political and environmental importance of the So Francisco river basin, the three government levels (federal, state and municipal), together with the society, have joined strengths to create instruments to improve the revitalization and sustainable development of the region. In this way, the objective of the present article is to present some components of the \\

Silvia Nascimento Viana

350

Relatorio da Comissao Interministerial de Estudos para Controle das Enchentes do Rio Sao Francisco (Report of Interministerial Study Commission on Sao Francisco River Flood Control).  

National Technical Information Service (NTIS)

The report describes problems of flooding by the Sao Francisco River. The solution proposed calls for the construction of reservoirs and dams, including local levees and soil use control. Civil defense authorities and ecological agencies are also called u...

1980-01-01

351

Estudo da ativacao das pecas componentes do ciclotron CV-28. (Study of the activation of the parts components of the CV-28 cyclotron).  

National Technical Information Service (NTIS)

The CV-17 cyclotron, isochronous, compact, of variable energy is an accelerator of charged particles and is applied in several situations such as: radioisotopes production, neutron production, irradiation damage analysis, activation analysis. During the p...

P. W. Fajardo

1986-01-01

352

Efeito tpico de iodo-povidona 0,5% comparado com natamicina 5% em ceratites fngicas causadas por Fusarium solani em um modelo animal de coelhos: estudo piloto  

Microsoft Academic Search

Purpose: To evaluate the efficacy of topical administration of 0.5% povidone-iodine in experimental Fusarium solani keratitis in rabbits. Methods: Fungal keratitis caused by Fusarium solani was induced in the right eye of 24 New Zealand rabbits. The rabbits were randomly divided into 3 different treatment groups: Group I (povidone-iodine) - treated with topical 0.5% povidone-iodine; Group II (natamycin) - treated

Lauro Augusto de Oliveira; Thales Takeo Takata; Olga Fischman Gompertz; Luciene Barbosa de Sous; Mark J. Mannis

353

Estudos de confiabilidade de linhas de transmissao submetidas a acao do vento. (Reliability studies of transmission lines exposed to wind action).  

National Technical Information Service (NTIS)

The thesis describes a model developed to obtain the probability of failure of transmission lines exposed to wind action. Concerning the loading, the model takes into account the loads caused by type EPS winds (Extended mature pressure system). For this k...

R. C. R. Menezes

1988-01-01

354

Habilidades sociais das mes e envolvimento com os filhos: um estudo correlacional Mothers' social skills and their involvement with children: a correlacional study  

Microsoft Academic Search

This study aimed to identify and to analyze the mother's social skills repertoire and their involvement with their children. Twenty-two mothers, whose children were in the first grade, participated in this study. They completed the Mother's Evaluation of Family Interaction Quality questionnaire and Social Skills Inventory (IHS-Del-Prette). The participants reported good social skills repertoire , which was positively correlated to

Fabiana CIA; Camila de Sousa; Zilda Aparecida; Pereira DEL PRETTE; Almir DEL PRETTE

355

Um Estudo das Funcoes de Similaridade DA Camada Limite Planetaria. Parte 2: Resultados (Study of the Functions of Similarity of the Planetary Boundary Layer. Part 2. Results).  

National Technical Information Service (NTIS)

Micrometeorological data obtained during atmospheric boundary layer testing over tropical savannah land in Koorin, Australia are used to evaluate similarity functions A, B, and C of the planetary boundary layer. Different flux-profile relationships are ev...

J. C. S. Chagas Y. Viswanadham

1984-01-01

356

Um Estudo das Funcoes de Similaridade DA Camada Limite Planetaria. Parte 1: Teoria (Study of the Functions of Similarity of the Planetary Boundary Layer. Part 1. Theory).  

National Technical Information Service (NTIS)

The concept of asymptotic similarity is extended to the planetary boundary layer. Similarity functions A, B, and C of the planetary boundary layer are discussed using Rossby-number similarity theory. Simplified theoretical expressions of functions A, B, a...

Y. Viswanadham J. C. S. Chagas

1984-01-01

357

A fauna de Rotallida (Foraminiferida) da borda do recife de Itacimirim, Bahia, Brasil: um estudo comparativo do sedimento e das algas como substrato  

Microsoft Academic Search

This study aimed to compare the Rotaliida fauna (Foraminiferida) that lives in the sediment with that attached on algae from the Itacimirim's reef border, Bahia's north coast. Six samples of sediment and six of algae were collected in sites distributed along the reef border. The first 200 foraminnifers of each sample were selected, identified and the specimens belonging to the

Yonara S. Braga; Altair J. Machado; Simone S. Moraes

2008-01-01

358

Sintese, marcacao e estudos biologicos do acido 16-(sup 131)I-hexadecanoico para cintilografias do miocardio. (Synthesis labeling and biological studies of 16-(131)I).  

National Technical Information Service (NTIS)

The increasing interest in obtaining radiopharmaceuticals for metabolic imaging of heart muscle led us to prepare 16-IODINE HEXADECANOIC ACID by tosilation of the corresponding hydroxy acid, following iodination with NaI and finally, introducing radioiodi...

M. K. Sato

1988-01-01

359

MÉTODOS DE CUSTEIO POR ABSORÇÃO E VARIVEL NA OVINOCULTURA DE CORTE: ESTUDO DE CASO EM UMA CABANHA  

Microsoft Academic Search

The importance of the rural accounting in cost verification for agribusiness activities is highlighted in this study of which general aim is to identify and measure the production costs of ovine, by means of the absorption costing and variable costing methods, aiming to demonstrate the values of the stocks and the economic results of a farm in Itapiranga (SC). Besides

Marino Luiz Eyerkaufer; Adilson Costa; Ana Cristina de Faria

2007-01-01

360

ESTUDO DA LIGAO CRUZADA INDUZIDA PELO FORMALDEDO EM CPSULAS DE GELATINA DURA Study of formaldehyde induced cross-linking in hard gelatin capsules  

Microsoft Academic Search

RESUMO: O formaldedo um agente desnaturante que induz a ligao cruzada covalente na gelatina, sendo um dos agentes utilizados para a promoo da gastro-resistncia em formas farmacuticas gelatinosas, contudo, seu uso carece de avaliaes minuciosas e da definio de protocolos especficos para as diversas classes de frmacos. O objetivo deste trabalho foi investigar a ligao cruzada induzida pelo formaldedo

Ana Lcia; T. C. Zampieri; Eliana M. Lima; Danielle G. A. Diniz

361

A msica como experincia e diferencial mercadolgico no turismo: um estudo de caso sobre o trecho Serro a So Gonalo do Rio Preto - Estrada Real - MG  

Microsoft Academic Search

The search for places, which provide meaningful and unique experiences, is increasing in the tourism activity, and consequently, it is necessary to change the marketing strategy in places and attractions. The musical expression of Minas Gerais is not promoted as cultural contrast, although it is a great tourist attraction. This article suggests the use of the experimental marketing and the

Mariana Helena; Diniz Ferreira; Mileno Dias Marquezini

362

Sndrome pr-menstrual em adolescentes: um estudo transversal dos fatores biopsicossociais Premenstrual syndrome in adolescents: a transversal study of the bio-psycho-social factors  

Microsoft Academic Search

Objective: To evaluate the prevalence and to identify aspects related to the Premenstrual Syndrome (PMS) in adolescents of private high school (Fundao Santo An- dr, Santo Andr - SP). Methods: Transversal study line, carried through with 360 students, ages varying from 14 to 18 years old. The evaluation had two phases. Phase one: standard protocol application to identify youths with

Maria Regina Domingues de Azevedo; Maria Ignez Saito; Eliezer Berenstein; Drauzio Viegas

363

Estudo e otimizacao do processo de obtencao de carbeto de boro por reducao carbotermica. (Study and optimization of the carbothermic reduction process for obtaining boron carbide).  

National Technical Information Service (NTIS)

Boron carbide - B sub(4)C - is a ceramic material of technological importance due to its hardness and high chemical and thermal stabilities. Moreover, its high neutron capture cross section makes it suitable for application as neutron absorber in nuclear ...

A. R. M. Castro

1989-01-01

364

Contribuicao AO Estudo de Sistemas de Modulacao Codificada Em Codigos Concatenados (Contribution to the Study of Coded Modulation Systems in Concatenated Codes).  

National Technical Information Service (NTIS)

Coded modulation systems applied to concatenated codes are studied. The analyses of some trellis and block coded modulation schemes are shown and simulations are performed to choose the most suitable internal code for the concatenated scheme. The simulati...

M. A. Chamon

1989-01-01

365

Estudo das interacoes de aminoacidos e o peptideo aspartame com ions lantanidios (III). (Interaction study of amino acids and the peptide aspartame with lanthanide (III) ions).  

National Technical Information Service (NTIS)

The interactions between the Nd(III) ion with the amino acids L-aspartic acid, L-glutamic acid and L-histidine and the peptide aspartame in aqueous solution were studied. The study was conducted by means of electronic spectroscopy with the Judd-Ofelt form...

C. R. Carubelli

1990-01-01

366

Estudo das possibilidadesde aproveitamento do deposito de terras raras de Araxa, Minas Gerais. (Possibility study of use rare earth deposit from Araxa, Minas Gerais State).  

National Technical Information Service (NTIS)

Prospecting work done by Instituto de Pesquisas Radioativas on the Barreiro area (Araxa, M.G.) has shown the existence of a rare earth deposit of about 700.000 ton, averaging 13,5 % rare earth oxide, mainly associated to the mineral monazite. In a first s...

M. D. Fernandes

1975-01-01

367

Estudo experimental do processo de obtencao de zirconio metalico por magnesiotermia. (Experimental study of the magnesothermic process for obtaining metallic zirconium).  

National Technical Information Service (NTIS)

Metallic zirconium is a material of high technological importance due to its high strength and corrosion resistance. Moreover, its relatively low thermal neutron cross sections makes a suitable component for cladding alloys for nuclear reactor fuel pellet...

D. Monzani

1989-01-01

368

Estudo da Evolucao Urbana de Brasilia Atraves do Uso de Dados Landsat (Study of the Urban Evolution of Brasilia with the Use of Landsat Data).  

National Technical Information Service (NTIS)

The urban growth of Brasilia within the last ten years is analyzed with special emphasis on the utilization of remote sensing orbital data and automatic image processing. The urban spatial structure and the monitoring of its temporal changes were focused ...

M. D. L. N. Deoliveira C. Foresti M. Niero E. M. D. M. Parreiras

1984-01-01

369

Aplicacoes de Dados dos Satelites Landsat No Estudo da Evolucao Urbana de Brasilia (Application of LANDSAT Data to the Study of Urban Development in Brasilia).  

National Technical Information Service (NTIS)

The urban growth of Brasilia within the last ten years is analyzed with special emphasis on the utilization of remote sensing orbital data and automatic image processing. The urban spatial structure and the monitoring of its temporal changes were examined...

N. D. J. Parada M. D. L. N. Deoliveira C. Foresti M. Niero E. M. D. M. Parreiras

1984-01-01

370

Estudo Comparativo de Sinais de VLF NA Regiao sub Antartica E NA Saga (Comparative Study of VLF Signals in the sub-Antarctic Region).  

National Technical Information Service (NTIS)

The VLF phase signals of Omega Argentina (43 deg S; 65 deg W) at frequencies of 10.2 and 13.6 kHz received simultaneously at Antarctic Station Comandante Ferraz located at the Antarctic Peninsula (62 deg S; 58 deg W) and at the Radio Observatory of Itapet...

P. C. Alvala

1990-01-01

371

Estudo Sobre a Vegetacao Aquatica e Marginal Relacionada com a Vida dos Peixes (Study on Aquatic and River Margins Vegetation Related to Fish Life).  

National Technical Information Service (NTIS)

This study is part of the Ichthyology Research Project of the Araguaia-Tocantis region. The objective was to identify the aquatic and river margins species which are directly or indirectly related to the fish life, specifically as a source of food for the...

J. E. de Paula

1978-01-01

372

Anlise de Componentes Principais em Imagens Multitemporais TM\\/Landsat como Subsdio aos Estudos de Vulnerabilidade Perda de Solo em Ambiente Semi-rido  

Microsoft Academic Search

This study shows a methodological approach to evaluate soil losses and environmental vulnerability of the semi-arid regime on the northeast of Brazil. In order to perform this work Landsat\\/TM bands (red and infrared), from distinct hydrological periods were used by PCA (Principal Component Analysis).The results obtained indicate different features of the land use changes, that were categorized on three landscape

Alessandra Rodrigues Gomes; Francisco Dario Maldonado

1998-01-01

373

Estudo dos Mtodos Otimizados de Aplicao de Fluidos de Corte no Processo de Retificao Study of Optimized Methods of Cutting Fluids Application in Grinding Process  

Microsoft Academic Search

Whenever precision and quality in samples are needed, with low rugosity and economic viability, the grinding process should be used. An optimized process is often recommended to achieve better results in terms of pieces and costs. Through the optimization process it is possible to foresee profits for the industrial sector, since the tools wearing, the cutting forces and the quantity

RODRIGO EDUARDO CATAI; EDUARDO CARLOS BIANCHI

374

Os partidos trabalhistas no sistema multipartidrio: um estudo comparado das trajetrias do PTB (1945-1964) e do PT (1980-2002)  

Microsoft Academic Search

The article discusses the trajectories of Brazilian Labour Parties, comparing the movement, in the ideological spectrum, of PTB (Brazilian Labour Party, between 1945 and 1964) and PT (Workers Party, between 1980 and 2002). We argue that the parties' ideological positions are set by their goals and the strategies they adopt to implement these goals. The nature of the goals depends

Geralda Luiza de Miranda

375

Ilha de Calor e Segregao Espacial: estudo de caso - stios da Macrozona Sul do municpio de So Jos dos Campos\\/SP  

Microsoft Academic Search

The aim of this work is to correlate the urban heat island effect with the residential buildings characteristics in three intra-urban areas, with different social-economic conditions, inside the south region of So Jos dos Campos city. For this purpose a hyperspectral image was employed. It was acquired in 2006 by the airborne Hyperspectral Scanner System (HSS), sensor operated by Brazilian

Livramento Andrade; Sandra Maria Fonseca Costa; Ruy Morgado de Castro; Romero da Costa Moreira

376

Estudos farmacocineticos do (sup 131) I-steviosideo e seus metabolitos. (Pharmacokinetic studies of (131) I-stevioside and its metabolites).  

National Technical Information Service (NTIS)

Stevia rebaudiana is a shrub widely in Paraguay and Brazil, belonging to the compositae family. The leaves of this plant contain large amounts of stevioside. Since the use of stevioside as sugar substitute continues to increase, the purpose of this study ...

V. N. Cardoso

1993-01-01

377

El juego entre el nacimiento y los 7 anos: Un manual para ludotecarias. Investigacion-accion sobre la Familia y la Primera Infancia. UNESCO Sector de Educacion Monografia (Play between Birth and 7 Years: A Manual for Preschool Teachers. Action Research in Family and Early Childhood. UNESCO Education Sector Monograph).  

ERIC Educational Resources Information Center

The purpose of this Spanish-language manual is to help preschool teachers better understand theoretical concepts related to children's play. Following a preface that discusses UNESCO's activities related to early childhood education, the two main sections of the manual discuss children's play between 0-2 years and 2-7 years. Each section includes

Grellet, Carolina

378

UMA HISTRIA DE SUCESSO: 30 ANOS DA PS-GRADUAO EM ENFERMAGEM DA UFSC A SUCCESS STORY: 30 YEARS OF THE N URSING G RADUATE P ROGRAM AT UFSC UNA HISTORIA DE SUCESO: LOS 30 AOS DEL POSTGRADO EN ENFERMERA DE LA UFSC  

Microsoft Academic Search

This is a qualitative study, using a socio-historical approach. Its objective is to place into a historical perspective the trajectory of the Nursing Graduate Program at the Federal University of Santa Catarina, Brazil, from the historical perspective of its coordinators. In order to so, structured interviews were carried out with six of the coordinators who served in the Program. The

Souza Padilha; Miriam Ssskind Borenstein; Ana Rosete Maia; Jenifer Adriana Domingues; Padilha MICS; Maia AR; Guedes JAD; Lessmann JC; Machado CA

379

O Passado como Nacao: Imagens do Imperio nas Falas Reacionarias dos Anos 30 e 40 do Seculo XX: Uma Pequena Arqueologia do Debate Publico e Privado (The Past as Nation: Images of the Empire in the Reactionary Words of the 30s and 40s in the 20th Century: A Small Archaeology of the Public Debate versus the Private One).  

ERIC Educational Resources Information Center

Suggests an archaeology of the public debate versus the private one in Brazil through analysis of the reactionary speech of a religious leader, Dom Jose Mauricio da Rocha, which produced innumerable representations of the Brazilian Empire. (PA)

de Freitas, Marcos Cezar

1998-01-01

380

A Guide for Parents and Families about What Your 12th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de Grado 12 Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new

South Carolina State Education Oversight Committee, Columbia.

381

Efeitos de um programa de orientao de atividade fsica e nutricional sobre a ingesto alimentar e composio corporal de mulheres fisicamente ativas de 50 a 72 anos de idade Effects of an intervention program of physical activity and nutrition orientation on nutritional habits an anthropometrical variables of physically active women aged between 50 to 72 years  

Microsoft Academic Search

The purpose of this study was to verify the effects of an intervention program of physical activity and nutrition orientation on anthropometrical variables and nutritional habits of physically active women aged between 50 to 72 years. The sample consisted of sixty-four women participating of gymnastic program regularly. Subjects were assigned to one of four intervention groups: A- nutritional only; B-

Marcela Ferreira; Sandra Matsudo; Victor Matsudo; Glaucia Braggion

382

Distribuio de angiologistas e cirurgies vasculares na populao brasileira: anlise dos membros da SBACV - ano base 2004 Distribution of vascular surgeons and angiologists among the Brazilian population: analysis with the members of the Brazilian Society of Angiology and Vascular Surgery in 2004  

Microsoft Academic Search

Objectives: To correlate data about the real distribution of angiologists and vascular surgeons in different Brazilian regions and the ideal proportion of specialists per inhabitants of a city. Methods: The number and distribution of vascular surgeons and angiologists were obtained from the list of members of the Brazilian Society of Angiology and Vascular Surgery in 2004. The numbers concerning the

Jefferson Kleber Forti; Maria Elizabeth; Joo Alfredo de Paula; Rodrigo Rodrigues Mariano; Renato Gontijo; Raimundo Mairton Arajo Jr

383

Avaliao da composio corporal e da potncia aerbica em jogadoras de Voleibol de 13 a 16 anos de idade do Distrito Federal Evaluation of body composition and aerobic power in female Volleyball players between 13 and 16 years old in the Federal District  

Microsoft Academic Search

Cambraia, A.N., Pulcinelli, A.J. Evaluation of body composition and aerobic power in female Volleyball players between 13 and 16 years old in the Federal District. Rev. Bras. Cin. e Mov. 10 (2): 43-48, 2002. The goal of this study was to evaluate the body composition (body mass, stature, skin folds, body circumferences) and the level of aerobic power (VO 2mx

Admir do Nascimento Cambraia; Adauto Joo Pulcinelli

2002-01-01

384

ESTUDO DE VIABILIDADE TCNICO-ECONMICA PRELIMINAR PARA PRODUO DE CARVO ATIVADO NO BRASIL A PARTIR DOS RESDUOS DO COCO: ESTUDO COMPARATIVO DOS CENRIOS DE PRODUO 1 Preliminary Technological-Economic Viability Study for Activated Charcoal Production in Brazil From Residual Coconut Biomass: A Comparative Study of Two Production Scenarios  

Microsoft Academic Search

Resumo: O objetivo da pesquisa foi desenvolver uma rota para utilizao de resduos de coco para produo de carvo ativado com co-produo de energia, visando o mximo aproveitamento e mximo rendimento energtico, com o mnimo de perdas de matria-prima. Depois de realizadas pesquisas bibliogrficas sobre o atual estado de tecnologia na produo de carvo ativado com base na biomassa residual

Brunno Henrique; Souza Santiago

2006-01-01

385

Surface chemistry of intermetallic AlSb-anodes for Li-ion batteries  

Microsoft Academic Search

The solid electrolyte interphase (SEI) layer on AlSb electrodes has been studied in Li\\/AlSb cells containing a LiPF6 EC\\/DEC electrolyte using X-ray photoelectron spectroscopy (XPS). Data were collected before SEI-formation, during formation, and after formation at 0.01V versus Li0\\/Li+, and at full delithiation in cycled cells at 1.20V. The thickness of the SEI layer increases during lithiation and decreases during

M. Stjerndahl; H. Bryngelsson; T. Gustafsson; J. T. Vaughey; M. M. Thackeray; K. Edstrm

2007-01-01

386

Physical activity, psychosocial and perceived environmental factors in adolescents from Northeast Brazil.  

PubMed

The aim of this study was to evaluate the association between levels of physical activity, psychosocial and perceived environmental factors in adolescents from Northeastern Brazil. A cross-sectional epidemiologic study was conducted with 2,859 adolescents enrolled in secondary schools (57.8% females; mean = 16.5 years; SD = 1.2) in the city of Joo Pessoa, Paraba State, Brazil. The following physical activity correlates were measured: attitude, self-efficacy, social support from friends and parents, and perceived environmental characteristics. Physical activity was measured using a questionnaire. Multivariable ordinal logistic regression with proportional odds model analysis showed that the following factors are positively related to physical activity levels in adolescents: attitude, self-efficacy, as well as social support from parents and friends. Physical activity intervention programs should increase self-efficacy and social support from parents and friends, as well as a positive attitude toward physical activity.Este estudo analisou a associao do nvel de atividade fsica com fatores psicossociais e ambientais em adolescentes do Nordeste do Brasil. Estudo epidemiolgico transversal desenvolvido com 2.859 adolescentes (57,8% do sexo feminino, mdia de idade: 16,5 anos; DP = 1,2) no Municpio de Joo Pessoa, Paraba, Brasil. Os seguintes fatores associados atividade fsica foram mensurados: atitude, autoeficcia, apoio social dos pais e amigos e caractersticas do ambiente percebido. O nvel de atividade fsica foi mensurado por questionrio. Os resultados da anlise multivarivel por regresso logstica ordinal, com modelo de odds proporcionais, identificaram os seguintes fatores positivamente associados ao nvel de atividade fsica dos adolescentes: atitude, percepo de autoeficcia, apoio social dos pais e amigos. Programas de promoo da atividade fsica devem desenvolver aes para aumentar a autoeficcia dos adolescentes e o apoio social fornecido pelos pais e amigos, bem como desenvolver e reforar atitudes positivas em relao atividade fsica. PMID:24936811

Farias Jnior, Jos Cazuza de; Reis, Rodrigo Siqueira; Hallal, Pedro Curi

2014-05-01

387

Disordered eating links to body-relevant and body-irrelevant influences on self-evaluation.  

PubMed

We investigated eating- and weight-related correlates of self-evaluation influences (SEIs) and examined the extent to which such SEIs can be both over- and undervalued and the extent to which measurement strategy affects SEIs. A female undergraduate sample (n=549) completed 3 measures of SEI importance and questionnaires assessing disordered eating (DE), body mass index (BMI), and depression. SEI measures included Likert scale, rank ordering, and pairwise forced choice; a subset (n=62) also completed the Shape- and Weight-Based Self-Esteem Scale (SAWBS). Only rank ordering, forced choice, and SAWBS constrain choices among SEIs, such that prioritizing one SEI necessarily deprioritizes another, which reflects real-world restrictions on individuals' allotment of time and energy (e.g., spending hours exercising daily necessarily reduces time available for other activities). By any measure, women with DE overvalue body shape and weight. The constraining measures reveal systematic undervaluation of intelligence and achievement among women with DE and an enhanced effect of DE on the overvaluation of weight and on the undervaluation of being a good person among those with higher BMI. Depressed women's self-evaluations overemphasize appearance and underemphasize interpersonal relationships. Self-evaluations of women with DE are marked by both over- and undervaluation of relevant SEIs; the overvaluation of shape and weight in DE may be associated with costs. Future use of constraining measures, such as forced choice or rank ordering, may enhance our understanding of both over- and underemphasized SEIs among women with DE. PMID:24854805

Woodward, Halley E; Rizk, Marianne T; Wang, Shirley S; Treat, Teresa A

2014-04-01

388

Clinical Characteristics of Alcohol Drinking and Acculturation Issues Faced by Korean Immigrants in the United States  

Microsoft Academic Search

Koreans in the United States can be grouped based on their diverse immigration histories and levels of acculturation: 1st-generation (Il-Sei), 1.5 generation (Il-Jom-O-Sei), 2nd-generation (Yi-Sei), 3rd-generation (Sam-Sei), and so on. Generational differences often account for different norms and behaviors regarding alcohol consumption. Difficulties for 1st-generation Koreans arise when seeking treatment for mental health and alcohol or substance abuse problems because

Sung Hyun Yun

2008-01-01

389

Organizational Considerations for Implementing Systems Engineering and Integration in the Ares Projects Office  

NASA Technical Reports Server (NTRS)

Systems Engineering and Integration (SE&I) is a critical discipline in developing new space systems. In 2005, NASA performed an internal study of 24 agency and Department of Defense (DoD) programs to evaluate methods of integrating SE&I practices and determine their effectiveness. The goal of the study was to determine the best SE&I implementation strategy for the Ares Projects Office. The study identified six SE&I organizational structures: 1. Lead systems integrator (LSI) with SE&I responsibility and government technical insight. 2a. Integration contractor with government SE&I responsibility (government insight). 2b. Integration contractor with government SE&I responsibility (government oversight). 3a. Prime contractor with SE&I responsibility (government insight). 3b. Prime contractor with SE&I responsibility (government oversight). 3c. Prime contractor with SE&I responsibility (government/industry partnership). 4a.Prime contractor with government SE&I responsibility (government insight). 4b. Prime contractor with government SE&I responsibility (government oversight). 4d.Prime contractors with total system performance responsibility (TSPR). 5. Prime contractor with government SE&I responsibility and integration products through a Federally Funded Research and Development Center (FFRDC). 6. Government/FFRDC in-house development with SE&I responsibility and function. The organizational structure used most often was number 4, using a prime contractor with government SE&I responsibility and government technical insight. However, data analyses did not establish a positive relationship between program development costs and specific SE&I organizational types, nor did it positively determine the relationship between successful programs or projects and their SE&I structure. The SE&I study reached the following conclusions: (1) Large, long-duration, technically complex programs or projects reach their technical goals, but rarely meet schedule or cost goals. NASA's recent successes have been smaller, short-duration development projects using heritage hardware/software, focused technology development, technical oversight and stable external factors. (2) Programs and projects have failed or been terminated due to lack of technical insight, relaxing of SE&I processes, and unstable external factors. (3) The study did not find a single, clear optimum SE&I organization type to fit all projects. However, while any organizational structure can be made to work, the fewer complexities in the program, the better the likelihood of success. (4) The most common successful SE&I organization structure type in the study was type 4b, where the government maintained integration responsibility, with the prime contractor providing SE&I products and the government providing technical oversight. This study was instrumental in helping the APO select organization structure 4, following the same SE&I and oversight process used during humanlund7s last voyages to the Moon.

Thomas, LeAnn; Doreswamy, Rajiv N.

2008-01-01

390

Compilao de dados atmicos e moleculares do UV ao IV prximo para uso em sntese espectral  

NASA Astrophysics Data System (ADS)

Espectros sintticos so utis em uma grande variedade de aplicaes, desde anlise de abundncias em espectros estelares de alta resoluo ao estudo de populaes estelares em espectros integrados. A confiabilidade de um espectro sinttico depende do modelo de atmosfera adotado, do cdigo de formao de linhas e da qualidade dos dados atmicos e moleculares que so determinantes no clculo das opacidades da fotosfera. O nosso grupo no departamento de Astronomia no IAG tem utilizado espectros sintticos h mais de 15 anos, em aplicaes voltadas principalmente para a anlise de abundncias de estrelas G, K e M e populaes estelares velhas. Ao longo desse tempo, as listas de linhas vieram sendo construdas e atualizadas continuamente, e alguns acrscimos recentes podem ser citados: Castilho (1999, tomos e molculas no UV), Schiavon (1998, bandas moleculares de TiO) e Melendez (2001, tomos e molculas no IV prximo). Com o intuito de calcular uma grade de espectros do UV ao IV prximo para uso no estudo de populaes estelares velhas, se fazia necessrio compilar e homogeneizar as diversas listas em apenas uma lista atmica e uma molecular. Nesse processo, a nova lista compilada foi correlacionada com outras bases de dados (NIST, Kurucz Database, O' Brian et al. 1991) para atualizao dos parmetros que caracterizam a transio atmica (comprimento de onda, log gf e potencial de excitao). Adicionalmente as constantes de interao C6 foram calculadas segundo a teoria de Anstee & O'Mara (1995) e artigos posteriores. As bandas moleculares de CH e CN foram recalculadas com o programa LIFBASE (Luque & Crosley 1999). Nesse poster esto detalhados os procedimentos citados acima, as comparaes entre espectros calculados com as novas listas e espectros observados em alta resoluo do Sol e de Arcturus, e uma anlise do impacto decorrente da utilizao de diferentes modelos de atmosfera no espectro sinttico. Ao final, temos uma lista de linhas atmicas com mais de 24.000 linhas e uma lista molecular com as molculas CN, CH, OH, NH, MgH, C2, TiO Gama, CO, FeH, adequadas ao estudo de estrelas G, K e M e populaes estelares velhas.

Coelho, P.; Barbuy, B.; Melendez, J.; Allen, D. M.; Castilho, B.

2003-08-01

391

Projeto observatrios virtuais: educao atravs de telescpios robticos  

NASA Astrophysics Data System (ADS)

O principal objetivo do projeto Observatrios Virtuais o ensino na rea de cincias atravs de atividades prticas desenvolvidas em colaborao entre instituies de pesquisa em astronomia e escolas de ensino mdio e fundamental. Este ano dever ser concluda a implantao do programa piloto de estudos, pesquisas e observao astronmica direta, com utilizao em tempo real de telescpios robticos, que assim funcionaro como "observatrios virtuais". O objetivo pedaggico das atividades prticas baseadas nas imagens atronmicas desenvolver as habilidades e competncias dos alunos no uso do mtodo cientfico. Para isso, sero realizados projetos interdisciplinares, a partir de observaes astronmicas, j que a astronomia uma rea interdisciplinar por excelncia. Essas atividades tero nveis diferenciados de complexidade, que podem ser adequados aos vrios graus do ensino e realidades regionais. Ser dada nfase ao desenvolvimento e aplicao em So Paulo, onde atua a equipe do IAG/USP. Como resultados apresentados no presente trabalho, temos a criao de um software em portugus para o processamento de imagens obtidas atravs de CCDs e a elaborao de material para as atividades educacionais relacionadas.

Santana, P. H. S.; Shida, R. Y.

2003-08-01

392

Estatstica de lentes gravitacionais e o gs de chaplygin generalizado  

NASA Astrophysics Data System (ADS)

A estatstica de lentes gravitacionais constitui uma poderosa ferramenta utilizada na obteno de vnculos sobre parmetros cosmolgicos, principalmente sobre modelos com uma constante cosmolgica. Embora de forma s vezes controversa, antes de 1998, a anlise tradicional mostrava que modelos com o parmetro de densidade da matria da ordem da unidade so preferidos. Esse resultado comeou a ser questionado, alguns anos atrs, com as indicaes, advindas da anlise de supernovas com alto valor de desvio para o vermelho, de que nosso Universo est acelerando. Atualmente h enorme interesse em saber qual a natureza da componente responsvel pela acelerao csmica. Energia escura a denominao usual dessa componente e sua caracterstica principal possuir presso negativa. Nos modelos cosmolgicos tradicionais, alm da energia escura, considera-se tambm uma outra componente de origem desconhecida. Ela denominada matria escura e possui presso nula. Mais recentemente modelos unificadores em que energia escura e matria escura so manifestaes distintas de um mesmo fluido (altas densidades matria escura, baixas densidades energia escura) foram sugeridos. Um desses modelos conhecido como Gs de Chaplygin Generalizado que o modelo que investigaremos. Em nosso trabalho apresentamos vnculos sobre parmetros desse modelo usando a estatstica de lentes gravitacionais. Usamos observaes de quasares na faixa do visvel e consideramos extino em nosso estudo. Anlises semelhantes anteriores com esse tipo de objetos e que no consideram extino so inconsistentes. Comparao dos vnculos obtidos atravs de lentes gravitacionais com outros advindos de outros testes ser tambm apresentada.

Oliveira, A. L. S.

2003-08-01

393

Improving Teaching Effectiveness through the Application of SPC Methodology  

ERIC Educational Resources Information Center

One method used extensively to aid in determining instruction effectiveness is Student Evaluations of Instruction (SEI). This paper examines the use of statistical Process Control charts as a way to correctly measure teaching effectiveness. This field studying SEIs has produced a significant literature. It is not surprising that there is

Cadden, David; Driscoll, Vincent; Thompson, Mark

2008-01-01

394

Symptom and functional outcomes for a 5 year early intervention program for psychoses  

Microsoft Academic Search

There continues to be controversy concerning the long term benefits of specialized early intervention programs (SEI) for psychotic disorders. Recent reports of five year outcomes for SEI programs indicate that benefits of early intervention programs at two year follow-up have disappeared at five years. The Prevention and Early Intervention Program for Psychoses (PEPP) in London, Ontario offers continuity of care

Ross M. G. Norman; Rahul Manchanda; Ashok K. Malla; Deborah Windell; Raj Harricharan; Sandra Northcott

2011-01-01

395

Space Exploration Initiative - Overview, current status, near term plans  

Microsoft Academic Search

An overview is presented of the Space Exploration Initiative (SEI) describing current activities, accomplishemnts, and directions. The program is considered in terms of activities relevant to the three phases which are: manned robotic\\/precursor missions, manned lunar missions, and manned Mars missions. SEI is shown to be in the First Lunar Outpost (FLO) mission phase which is based on an early

Alan M. Adams; Carl M. Case

1992-01-01

396

Feature Extraction of Radar Emitter Harmonic Power Constraint Based on Nonlinear Characters of the Amplifier  

Microsoft Academic Search

In radar countermeasures systems, because each emitter has its own electromagnetic properties inside its transmitted signal, the specific emitter can be identified using received radar signals. Traditionally, the specific emitter identification (SEI) depends on analyzing the time-frequency structure within the usage band. In this paper, a new SEI feature extraction approach based on autocorrelation analysis is proposed. To characterize the

Zhibin Yu; Chunxia Chen; Weidong Jin; Gexiang Zhang

2009-01-01

397

In situ Measurements of the Solid Electrolyte Interphase in Li-Ion Batteries Using Neutron Reflectometry  

NASA Astrophysics Data System (ADS)

The huge advantages of Li-ion batteries, i.e. high energy density and specific power are due not only to the low mass of Li, but also a direct result of the high operating voltage provided by the large electrochemical potential of Li. However, these advantages come at a cost, as all known electrolytes are unstable at these potentials. Li-ion batteries are only made possible by the solid electrolyte interphase, SEI, a passivation layer that forms from the decomposition products of certain electrolytes. Ideally the SEI offers sufficient electronic resistance when it has grown thick enough to stop additional electrolyte decomposition. However, slow continued SEI growth leads to capacity fade and increased cell resistance. Despite the SEI's critical significance, currently structural characterization is incomplete because of the reactive and delicate nature of the SEI and the electrolyte system in which it forms. Here we present the first in situ neutron reflectometry measurements of the SEI layer as function of potential in a working lithium half-cell. The SEI layer after 10 and 20 CV cycles is 4.0 and 4.5 nm, respectively, growing to 8.9 nm after a series of potentiostatic holds that approximates a charge/discharge cycle. Specified data sets show uniform mixing of SEI components.

Dura, Joseph; Owejan, Jeanette; Decaluwe, Steven; Owejan, Jon

2013-03-01

398

Reengineering a scientific software and lessons learned  

Microsoft Academic Search

SeisSol is a scientific software for the numerical simulation of seismic wave phenomena. However, there are three main problems in the SeisSol project. First, the project documentation is incomplete. Second, the source code comprehensibility is low. Third, the dependencies between the modules in the system are complicated. To solve the problems and to enhance the software quality, we perform a

Yang Li

2011-01-01

399

Advanced thermionic systems for the Space Exploration Initiative  

Microsoft Academic Search

Technology assessments and system comparison study results are presented to support the candidacy of in-core thermionics for U.S. Space Exploration Initiative (SEI) applications. The history of thermionic development is reviewed, advanced technology options are identified, and the technology paths needed to reach readiness for the SEI goals are discussed.

Thomas H. van Hagan; Joseph C. Mills

1991-01-01

400

Advanced Nuclear Thermal Propulsion Concepts.  

National Technical Information Service (NTIS)

In 1989, a Presidential directive created the Space Exploration Initiative (SEI) which had a goal of placing mankind on Mars in the early 21st century. The SEI was effectively terminated in 1992 with the election of a new administration. Although the init...

S. D. Howe

1993-01-01

401

Software Engineering Institute  

NSDL National Science Digital Library

Software Engineering Institute (SEI) is a federally funded research and development center whose objective is to provide leadership in software engineering and in the transition of new software engineering technology into practice. The SEI Information Server provides links to the ongoing research efforts of the ARPA Software and Intelligent Systems Technology Office and an index of information relating to numerous software and computing topics.

402

TAGUCHI APPROACH TO DESIGN OPTIMIZATION FOR QUALITY AND COST: AN OVERVIEW  

Microsoft Academic Search

INTRODUCTIONCalibrations to existing cost of doing business in space indicate that to establishhuman presence on the Moon and Mars with the Space Exploration Initiative (SEI) willrequire resources, felt by many, to be more than the national budget can afford. In orderfor SEI to succeed, we must actually design and build space systems at lower cost thistime, even with tremendous increases

Resit Unal; Edwin B. Dean

1991-01-01

403

Advanced thermionic systems for the Space Exploration Initiative  

NASA Astrophysics Data System (ADS)

Technology assessments and system comparison study results are presented to support the candidacy of in-core thermionics for U.S. Space Exploration Initiative (SEI) applications. The history of thermionic development is reviewed, advanced technology options are identified, and the technology paths needed to reach readiness for the SEI goals are discussed.

van Hagan, Thomas H.; Mills, Joseph C.

1991-09-01

404

Human Factors Evaluation of Submarine Escape: Ia. Individual and Group Escape with the British Submarine Escape Immersion Suit And The Steinke Hood under Conditions of Side and Tube Egress.  

National Technical Information Service (NTIS)

The compatibility of the British Mark VII Submarine Escape Immersion Suit (SEIS) with side egress and tube egress United States Navy escape trunk configurations was evaluated. Egress time with the SEIS was compared to that with the Steinke Hood under cond...

B. L. Ryack R. L. Rodensky G. B. Walters

1970-01-01

405

In situ atomic force microscopy study of initial solid electrolyte interphase formation on silicon electrodes for li-ion batteries.  

PubMed

Precise in situ atomic force microscopy (AFM) is used to monitor the formation of the solid electrolyte interphase (SEI) on Si electrodes. The stability of these passivation films on negative electrodes is critically important in rechargeable Li-ion batteries, and high capacity materials such as Si present substantial challenges because of the large volume changes that occur with Li insertion and removal. The results reported here show that the initial rapid SEI formation can be stabilized before significant Li insertion into the Si begins and that the rate at which this occurs varies significantly with the nature of the surface. The initial cycling conditions also have a substantial impact on the SEI that forms, with faster rates leading to a smoother, thinner SEI film. To quantitatively interpret the SEI measurements, irreversible expansion of the Si during the first cycle was also monitored in situ with specifically designed specimen configurations. On the basis of the experimental results, relatively simple models were also used to describe the initial formation and stabilization of the SEI and to describe the relationship between the SEI thickness and expected SEI degradation mechanisms. PMID:24670933

Tokranov, Anton; Sheldon, Brian W; Li, Chunzeng; Minne, Stephen; Xiao, Xingcheng

2014-05-14

406

Differential pulse effects of solid electrolyte interface formation for improving performance on high-power lithium ion battery  

Microsoft Academic Search

Solid electrolyte interface (SEI) formation is a key that utilizes to protect the structure of graphite anode and enhances the redox stability of lithium-ion batteries before entering the market. The effect of SEI formation applies a differential pulse (DP) and constant current (CC) charging on chargedischarge performance and cycling behavior into brand new commercial lithium ion batteries is investigated. The

Fu-Ming Wang; Hsin-Yi Wang; Meng-Han Yu; Yi-Ju Hsiao; Ying Tsai

2011-01-01

407

Effect of electrolyte transport properties and variations in the morphological parameters on the variation of side reaction rate across the anode electrode and the aging of lithium ion batteries  

Microsoft Academic Search

In this work, for the first time, we model the variation of solid electrolyte interface (SEI) across the depth of anode electrode of lithium ion battery. It is anticipated that due to higher thickness of SEI layer at the electrode side connected to the separator, a more critical condition prevails there. The present work also investigates the effects of variations

H. Jannesari; M. D. Emami; C. Ziegler

2011-01-01

408

Ionic liquids as electrolytes for Li-ion batteriesAn overview of electrochemical studies  

Microsoft Academic Search

The paper reviews properties of room temperature ionic liquids (RTILs) as electrolytes for lithium and lithium-ion batteries. It has been shown that the formation of the solid electrolyte interface (SEI) on the anode surface is critical to the correct operation of secondary lithium-ion batteries, including those working with ionic liquids as electrolytes. The SEI layer may be formed by electrochemical

Andrzej Lewandowski; Agnieszka ?widerska-Mocek

2009-01-01

409

The Risk of Subsequent Maltreatment Allegations in Families with Substance-Exposed Infants.  

ERIC Educational Resources Information Center

A study assessed the relationship between identified prenatal substance use and the risk of subsequent maltreatment allegations among 277 families involved with child protective services. Parents in the substance-exposed infant (SEI) group were more likely to have subsequent SEI-related allegations but not more likely to incur other types of

Smith, Brenda D.; Testa, Mark F.

2002-01-01

410

Southern Energy, Inc. Operational Plan to Implement Metropolitan Electric Authority's Long-Range Plan and Implementation Study. Book 1.  

National Technical Information Service (NTIS)

Southern Energy, Inc. (SEI) was chosen by the Metropolitan Electric Authority (MEA) of Thailand to prepare an Operational Plan To Implement MEA's Long Range Plan and Implementation Study. While develoing the Plan, SEI found that MEA will need to develop a...

1999-01-01

411

Effect of spin exchange interaction on shot noise and tunnel magnetoresistance in double quantum dots  

NASA Astrophysics Data System (ADS)

By means of the Rate equation approach in sequential tunneling regime, we study spin-polarized transport through series double quantum dots (DQD) weakly coupled to collinear ferromagnetic leads with particular attention on the effect of interdot spin exchange interaction (SEI). For the asymmetric DQD giant negative differential conductance is realized, which depends on the energy-level spacing between two dots. It is demonstrated that the voltage dependencies of the tunnel magnetoresistance (TMR) and the shot noise are sensitive to the SEI, which leads to the additional imbalance between spin-polarized currents. The super-Poissonian statistics is enhanced in the parallel leads configuration by the ferromagnetic SEI, which favorites the spin bunching, while it is suppressed by stronger antiferromagnetic SEI in antiparallel configuration for a symmetric DQD. The voltage dependencies of the TMR and shot noise may be used to probe the SEI.

Xue, N. T.; Xie, H. Q.; Xue, H. B.; Liang, J.-Q.

2014-05-01

412

From a lunar outpost to Mars: science, policy and the U.S. Space Exploration Initiative.  

PubMed

The U.S. Space Exploration Initiative (SEI) is aimed at the establishment of an outpost for humans on the Moon, followed by the human exploration of Mars. It also encompasses robotic missions to the Moon and Man that will precede and perhaps accompany human presence. Science plays a dual role in SEI. First, many scientific questions must be answered to insure the health and safety of human explorers. Second, scientific investigations will be among the central objectives of human explorers. A substantial body of U.S. policy on SEI has been announced by President Bush. Its implementation is coordinated by the U.S. National Space Council under the Chairmanship of Vice President Quayle. That policy directs the early focus of SEI to be on technology development, including the identification of "high leverage technologies," and the identification of alternative mission architectures. It also envisions international cooperation as an important beneficial aspect of SEI. PMID:11538161

Pilcher, C B

1992-01-01

413

Sexual competitiveness and compatibility between mass-reared sterile flies and wild populations of Anastrepha Ludens (Diptera: Tephritidae) from different regions in Mexico  

SciTech Connect

The mass-reared colony of Anastrepha ludens (Loew) currently used in Mexico for suppression of the Mexican fruit fly has been in use for over 10 years. Sterile flies are released into a wide range of environmental conditions as part of an integrated area-wide approach to suppress diverse populations of this pest in the Mexican Republic. This paper assesses the performance of the sterile flies interacting with wild populations from the different environments. We investigated the sexual compatibility and competitiveness of the sterile flies when competing with wild populations from 6 representatives Mexican states: Nuevo Leon, Tamaulipas, Sinaloa, Nayarit, Michoacan, and Chiapas. Results show that the males of the wild populations differed in the time to the onset and peak of sexual activity. Nevertheless, the index of sexual isolation (ISI) reflected sexual compatibility between the populations and the mass-reared strain, indicating that the sterile individuals mate satisfactorily with the wild populations from the 6 states. The male relative performance index (MRPI) showed that the sterile male is as effective in copulating as the wild males. The female relative performance index (FRPI) reflected a general tendency for wild females to copulate in greater proportion than the sterile females, except for the strains from Tamaulipas and Chiapas. In general, the lower participation of the sterile females in copulation increases the possibilities of sterile males to mate with wild females. The relative sterility index (RSI) showed that the acceptance by wild females of the sterile males (25-55%) was similar to that of wild males. Females of the Chiapas strain showed the lowest acceptance of sterile males. Finally, the results obtained in the Fried test (which measures induced sterility in eggs) showed a competitiveness coefficient ranging from 0.2 to 0.5. This suggests that sterile males successfully compete and are compatible with flies from different geographic origins. (author) [Spanish] La colonia actualmente usada para controlar la mosca mexicana de la fruta, Anastrepha ludens (Loew), en Mexico tiene mas de 10 anos en cria masiva. Los insectos esteriles son liberados en una gran variedad de condiciones ambientales como parte de un control integrado para suprimir diversas poblaciones de esta plaga dentro de la Republica Mexicana. El objetivo de este documento esta dirigido a revisar el desempeno de las moscas esteriles frente a poblaciones silvestres procedentes de diferentes ambientes y para esto se realizaron comparaciones de compatibilidad y competitividad sexual de las moscas esteriles contra poblaciones silvestres de seis estados representativos de la Republica Mexicana: Nuevo Leon, Tamaulipas, Sinaloa, Nayarit, Michoacan y Chiapas. Los resultados obtenidos manifiestan diferencias en el horario de inicio de llamado y mayor actividad sexual del macho entre las moscas provenientes de cada estado. Sin embargo el indice de aislamiento (ISI) reflejo compatibilidad sexual entre la cepa de laboratorio y todas las poblaciones analizadas, indicando que los individuos esteriles pueden aparearse satisfactoriamente con las poblaciones silvestres de los seis estados. El indice de efectividad de apareamiento del macho (MRPI) reflejo de manera global que los machos esteriles son tan efectivos para copular como los silvestres. El indice de efectividad de apareamiento de la hembra (FRPI) reflejo que en la mayoria de los estados las hembras silvestres copularon en mayor proporcion que las hembras esteriles, excepto para las poblaciones de Tamaulipas y Chiapas. En general, la baja participacion de las hembras esteriles en el campo permitio al macho esteril ampliar su probabilidad de apareamiento con las hembras silvestres. En cuanto al indice de esterilidad relativa (RSI), observamos que la aceptacion de las hembras silvestres al macho esteril (25-55%) fue similar a la de los machos silvestres. Las hembras de la poblacion de Chiapas registro la menor aceptacion. Finalmente, los resultados obtenidos en la prueba de Fried, la cual determi

Orozco-Davila, D.; Hernandez, R.; Meza, S.; Dominguez, J. [Programa Moscamed Moscafrut-Desarrollo de Metodos, Central Poniente No. 14 altos-Esq. 2a Avenida Sur. CP 30700 Tapachula, Chiapas (Mexico)

2007-03-15

414

AN EXPLORATORY STUDY OF THE ROLE OF INTERNET TECHNOLOGIES IN THE FIELD OF INDUSTRIAL MAINTENANCE: IS KNOWLEDGE MANAGEMENT THE WAY FORWARD? UM ESTUDO EXPLORATRIO DO PAPEL DAS TECNOLOGIAS DE INTERNET NO CAMPO DE MANUTENO INDUSTRIAL: GESTO DO CONHECIMENTO O  

Microsoft Academic Search

This is an exploratory study of how Internet technologies are likely to have an impact on a specific industrial activity. Maintenance has long been the poor relation in industry despite being indispensable both in continuous process manufacturing and in discrete production. The research starts from the premise that maintenance has two key functions that can be related to management disciplines.

Tim White

415

Study of Ammonia Emission in H2 Galactic Regions: NGC 6334, Orion E G 328.2-0.5 Estudo das Emissao de Amonia Originaria das Regioes Hii Galaticas; NGC 6334, Orion E G 328.2-0.5.  

National Technical Information Service (NTIS)

A search for NH3 emission towards galactic HII regions NGC 6334, Orion and G 328.2-0.5 was undertaken. All observations were made at frequencies which correspond to the rotational transitions (J,K) = (1,1), (2,2) and (3,3). The observational parameters (a...

J. W. D. S. Boas

1983-01-01

416

Contribuicao ao estudo dos mecanismos de reparacao em Staphylococcus epidermidis: caracterizacao de mutantes sensiveis as radiacoes ultravioleta. (Contribution to the safety of repairing mechanisms in Staphylococcus epidermidis: characterization of mutants sensible to ultraviolet radiation).  

National Technical Information Service (NTIS)

Mutants obtained from N - methyl -N' - nitro - N - nitrosoguanidine (MNNG) treatment of the W(sub 5) strain or Staphylococcus epidermidis and selected for their increased UV - sensitivity were characterized according to their capacity to repair DNA damage...

H. C. Rocha Guillobel

1985-01-01

417

Effect of titanium surface roughness on human bone marrow cell proliferation and differentiation. An experimental study 1 Efeito da rugosidade de superfcie de discos de titnio sobre a proliferao e diferenciao de clulas de medula ssea humana. Estudo experimental  

Microsoft Academic Search

Purpose: To assess the proliferation and differentiation of human bone marrow-derived cells cultured on titanium surfaces with different roughness characteristics. Methods: Cells obtained from the iliac crest of an adult human donor were routinely processed and cultured on titanium surfaces of varying roughness, according to their preparation method: polishing only (smooth surface) and polishing followed by etching with HF\\/HNO 3

Novaes Silva; Marlia Gerhardt

2009-01-01

418

Contribuicao ao estudo da fusao a arco sob atmosfera de gas inerte da esponja de zirconio. (Contribution to the study of arc melting in inert gas atmospheres of zirconium sponge).  

National Technical Information Service (NTIS)

Metallic zirconium is a material of great interest in the nuclear industry due to its low thermal neutron cross section, high strength and corrosion resistance. The latter permits its use in the chemical industry. In this study, a critical bibliographic r...

O. Julio Junior

1990-01-01

419

Pre-estudo da compatibilidade com sangue do PTFE copolimerizado com DMAA utilizando radiacao gama, PET e AFLON nao modificados. (Evaluation of the blood compatibility of PTFE grafted films with DMAA using gamma radiation).  

National Technical Information Service (NTIS)

The new method developed for Imai and Nose was to make use for evaluation of the blood compatibility of poly(tetrafluoroethylene) (PTFE) grafted films with N,N-dimethylacrylamide (DMAA). The amount of thrombus formed was measured gravimetrically at an app...

A. A. A. Queiroz O. Z. Higa

1990-01-01

420

FATORES DE SUCESSO DE UMA INOV AO NO CONTEXT O UNIVERSITRIO: UM ESTUDO DE CASO DO SETOR PECURIO Success factors of an innovation process in the university context: a case study of cattle sector (Starea)  

Microsoft Academic Search

The subject of this work is the innovation process in the university context. The purpose was, by means of an investigation of a specific innovation case in the cattle sector (Starea), to identify the essential factors that promote the transference of knowledge developed by scientific researches to the market. The methodology was a qualitative study of case. The techniques were:

Dany Flvio Tonelli; Andr Luiz Zambalde

421

Dynamic Study of the Upper Sao Francisco River and the Tres Marias Reservoir Using Mss/Landsat Images Estudo Dinamico Do Alto Rico Sao Francisco Ereservatorio Detres Marias, Atraves de Imagens Mss/Landsat.  

National Technical Information Service (NTIS)

The use of LANDSAT multispectral ban scanner imagery to verify the relationship between the behavior of the Tres Marias reservoir and the dynamics of the Sao Francisco River supply basin is described. The dispersion of suspended sediments and their concen...

N. Dejesusparada T. M. Sausen

1981-01-01

422

Estudo da viabilidade de analise direta dos componentes inorganicos do carvao e coque por espectrometria de fluorescencia de raios-X. (Feasibility study of direct analysis of coal and coke inorganic components by X-ray fluorescence spectroscopy).  

National Technical Information Service (NTIS)

The efficiency of an analysis process for coal and coke inorganic components by X-ray fluorescent spectroscopy is tested. The graphics and results are shown, concluding that this methodology can be used for regular attendments. (C.G.C.). (Atomindex citati...

A. F. Valadares J. E. Salgado J. R. Castro L. G. Pretti W. Castro Rodrigues

1987-01-01

423

NATUREZA DA CINCIA E ENSINO DE FSICA: CONSTRUINDO RELAES A PARTIR DO ESTUDO DA PTICA NEWTONIANA NATURE OF SCIENCE AND PHYSICS TEACHING: BUILDING CONECTIONS THROUGH THE ANALYSIS OF NEWTONIAN OPTICS  

Microsoft Academic Search

A busca por um ensino de fsica que desperte o senso crtico de alunos e professore s sobre assuntos relacionados C incia tem promovido a criao de diversas propostas e iniciativas que envolvam a discusso da Natureza da Cincia (NdC). A NdC pode ser definida como um conjunto de saberes sobre a C incia e sobre os processos que

Breno Arsioli Moura; Cibelle Celestino Silva

2008-01-01

424

Estudo das reatividades das oxidacoes eletro-cataliticas de substratos organicos com um complexo de Ru(IV). (Study of reactivities of electro-catalytic oxidation of organic substrates with Ru(IV) complex).  

National Technical Information Service (NTIS)

An electrocatalytic procedure for the oxidation of olefines, ketones, heterocycles and ethers using the Ru(sup IV) oxidant RuO (bpy) (trpy)(sup 2+)(bpy is 2,2 - bipyridine; trpy is 2,2', 2''' - terpyridine), is described. The relative reactivities of the ...

J. M. Madurro S. M. Oliveira J. L. Campos

1988-01-01

425

O Desempenho de Adultos Jovens e Idosos na Iowa Gambling Task (IGT): Um Estudo sobre a Tomada de Deciso Decision-making Capacity of Young Adults and Older Adults as Measured by the Iowa Gambling Task (IGT)  

Microsoft Academic Search

The study aimed to analyze the decision-making capacity of young adults and older adults. The Iowa Gambling Task, which was adapted for the Brazilian Portuguese in the present study, was used to measure decision- making. The sample consisted of 82 healthy persons divided in two groups: Group 1 - 42 young adults and Group 2 - 40 elders. The results

Daniela Di Giorgio Schneider; Maria Alice de Mattos; Pimenta Parente

426

Estudo da utilizacao da alga Spirulina platensis na obtencao de aminoacidos marcados com (sup 35)S e (sup 14)C. (Study of the algae Spirulina platensis in the obtention of amino acids marked with (35)S and (14)C).  

National Technical Information Service (NTIS)

The availability of the obtention labelled amino acids from the algae Spirulina platensis was studied. The (sup 35)S and the (sup 14)C were the radioisotopes employed. (L.M.J.). (Atomindex citation 23:025575)

P. C. Goes

1980-01-01

427

MTODOS DE CUSTEIO POR ABSORO E VARIVEL NA OVINOCULTURA DE CORTE: ESTUDO DE CASO EM UMA CABANHA Methods of absorption costing and variable costing in ovine: case study in a farm  

Microsoft Academic Search

The importance of the rural accounting in cost verification for agribusiness activities is highlighted in this study of which general aim is to identify and measure the production costs of ovine, by means of the absorption costing and variable costing methods, aiming to demonstrate the values of the stocks and the economic results of a farm in Itapiranga (SC). Besides

Marino Luiz Eyerkaufer; Adilson Costa; Ana Cristina de Faria

2007-01-01

428

USO de Sensoriamento Remoto Aereo Para Um Estudo de Caso de Desertificacao: Quixaba-Pe (Use of Aerial Remote Sensing in a Case Study of Desertification: Quixaba-Pe).  

National Technical Information Service (NTIS)

The Brasilian semiarid northeast, pointed out as one of the problem regions of the land, is presented, as a consequence of its fragile environment and high risk of desertification. A case of vegetative development in one of the problem sectors, a region o...

V. C. Decarvalho

1986-01-01

429

Efeito dos raios-x sobre o tubulo contorcido proximal de rim de camundongo (Mus musculus). Estudo ultra-estrutural. (X-rays effect on the proximal tubes of murine kidney (Mus musculus). Ultra-structural study).  

National Technical Information Service (NTIS)

The kidney alterations in mice it was submitted to total irradiation was studied, trying to determine which lesions were produced and in which sequence its occur. Knowing that irradiation, since in low doses, decrease the organism survival, since anticipa...

I. P. Pacheco

1973-01-01

430

Estudo da estrutura e da dinamica moleculares da baquelite atraves de medidas de secoes de choque para neutrons. (Study of the molecular structure and dynamics of bakelite with neutron cross section measurements).  

National Technical Information Service (NTIS)

The molecular structure and dynamics of calcined bakelite were studied with neutron transmission and scattering cross section measurements. The total cross sections determined were correlated with data obtained with infra-red spectroscopy, elemental analy...

D. L. Voi

1990-01-01

431

Randomized controlled trial of occupational therapy in patients with treatment-resistant schizophrenia Estudo aleatorizado e controlado empregando a terapia ocupacional em pacientes com esquizofrenia refratria a tratamento antipsictico  

Microsoft Academic Search

Objective: It is well established that the combination of psychopharmacological treatment and psychosocial interventions, such as psychotherapy, family orientation and occupational therapy (OT), represent the best strategy for treating patients with schizophrenia. However, in terms of treatment-resistant schizophrenia (TRS) almost only psychopharmacological treatments are available and psychosocial interventions such as OT had not proved to be effective. The aim of

Patrcia Cardoso Buchain; Adriana Dias; Barbosa Vizzotto; Jorge Henna Neto; Helio Elkis

432

Estudo da quebra de simetria conforme em teorias de campo em fundo gravitacional com uso de integrais de caminho. (Study of the conformal symmetry breaking in field theories in gravitational background using path integrals).  

National Technical Information Service (NTIS)

Some general aspects on field theories in curved space-time and a introduction to conformal symmetry are presented. The behavior of the physical systems under Weyl transformations is discussed. The quantization of such systems are performed through the fu...

M. Souza Alves

1990-01-01

433

Estudo e aplicacao de codigos nucleares disponiveis no Ipen em problemas de fisica de reatores dependentes do tempo. (Study of reactor analysis code available at Ipen and their application to the time dependent problems).  

National Technical Information Service (NTIS)

Two computer codes available at IPEN are studied and applied to analyze time-dependent problems of nuclear reactors. The GAPOTKIN code can be used to analyze short-term transient behaviours and the CITATION code is applicable to long-term burnup analysis....

M. Yamaguchi

1989-01-01

434

Estudo do sector elctrico e electrnico: uma anlise desagregada, ao nvel dos 40 principais produtos do comrcio bilateral comunitrio e ao nvel das principais empresas, para o perodo 1980 - 1992  

Microsoft Academic Search

Neste artigo faz-se: I) a caracterizao do sector elctrico - electrnico utilizando vrios indicadores, dos quais destacamos as medidas de capital humano, em termos de stock e de fluxo, as medidas de concentrao industrial e da escala mnima de eficincia (economias de escala) as medidas do peso das PMEs e as medidas da inovao tecnolgica; I) o ranking dos principais

Horcio Crespo Faustino

1995-01-01

435

Comparative study between two protocols used to treat the post-operative pain in pacients that underwent (LAUP) Estudo comparativo entre dois protocolos utilizados para tratamento da dor ps-operatria em pacientes submetidos a uvulopalatoplastia assistida por laser (LAUP)  

Microsoft Academic Search

One of the limiting factors for surgical procedures of palate in the treatment of sleep apnea and snore is the occurrence of excruciating pain. Among the procedures used there are those that provoke term-abrasion to obtain palatal ressection. These methods, including the laser tends to be quite painful, demanding the more variables therapeutic interventions. However, there are no evidences that

Serra Carapina; Esprito Santo

2007-01-01

436

Estudo da fisiopatologia do Haemonchus contortus (Rudolph, 1803) em bezerros atraves de radiotracadores. (Study on the pathophysiology of Haemonchus contortus (Rudolph, 1803) in calves with the use of radioisotopes).  

National Technical Information Service (NTIS)

This study was conducted to investigate the pathophysiology of Haemonchus contortus infection in friesian calves. The animals were divided in two groups of four calves each. One group was infected, orally, with 500 Haemonchus contortus larvae per kg body ...

S. M. Gennari

1989-01-01

437

Estudo Comparativo dos Efeitos de Tempestades Magneticas Em VLF na Anomalia Magnetica Do Atlantico Sul (Comparative Study of the Effects of Magnetic Storms within VLF (Very Low Frequencies) on the Magnetic Anomalies of the South Atlantic).  

National Technical Information Service (NTIS)

Effects produced in the lower ionosphere by forty magnetic storms were analyzed in the period of 1976 to 1981. Using VLF propagation path omega-Argentina/Atibaia, which is located in the Brazilian Geomagnetic Anomaly. Some storm effects which occurred in ...

N. M. Paesleme

1986-01-01

438

Datacao com o metodo dos tracos de fissao: estudo da dosimetria de neutrons com filmes finos de uranio natural. (Dating by fission track method: study of neutron dosimetry with natural uranium thin films).  

National Technical Information Service (NTIS)

Fission track dating is described, focalizing the problem of the decay constant for spontaneous fission of (sup 238) U and the use of neutron dosimetry in fission track analysis. Experimental procedures using thin films of natural uranium as neutron dosim...

P. J. Iunes

1990-01-01

439

Contribuicao ao estudo da marcacao de eritrocitos com cromo-51 e tecnecio-99m. (Contribution to the study of the red blood cells labelled with chromium-51 and technetium-99 m).  

National Technical Information Service (NTIS)

Although the bindings of Cr-51 and Tc-99 m were both in the (beta) chain of hemoglobin molecule, the results obtained after previous incubations of the RBC with chromium and technetium, and the determinations of the efficiency of the labeling of RBC showe...

M. S. Canine

1983-01-01

440

Estudo polarografico sobre a formacao de complexos entre indio (III) e azoteto de sodio, em meio aquoso. (Polarographic study about the complex formation between indium (III) and sodium azide, in aqueous media).  

National Technical Information Service (NTIS)

The present work is a branch of the main work concerned with the complex formation between several metal cations and azide ligand in aqueous media. The polarographic behavior of indium in azide system showed the tendency of complexation. Using polarograph...

R. Tokoro M. Bertotti

1988-01-01

441

A Study of the Vertical Transport of Momentum, Sensible Heat, and Water Vapor over Vegetation-Covered Surfaces in the Tropics Um Estudo DOS Transportes Verticais de Momentum, Calor Sensivele Vapor d'Agua Sobre Superficie Vegetada Nos Tropicos.  

National Technical Information Service (NTIS)

The energy balance changes with aerodynamic characteristics of the surface for four successive crop stage are presented. Parameterizations are used to calculate the sensible and water vapor fluxes. The results of the momentum, sensible heat and water vapo...

R. G. B. Andre

1981-01-01

442

Estudo com radioaerossol de DTPA tecnecio-99m em pacientes portadores de pneumopatia por amiodarona. (Study with radio aerosol of DTPA technetium-99 m in individuals with pulmonary disease by amiodarone).  

National Technical Information Service (NTIS)

In order to evaluate the role of the clearance of 99 m Technetium chelated to diethylenetriamine-penta-acetate (99 m Tc-DTPA) in amiodarone induced pulmonary disease, 40 individuals were studied in four groups. After spirometry, where a volume-time curve ...

M. Terra Filho

1989-01-01

443

Influence of toothbrushing on enamel softening and abrasive wear of eroded bovine enamel: an in situ study Influncia da escovao no amolecimento superficial do esmalte e desgaste do esmalte bovino erodido: um estudo in situ  

Microsoft Academic Search

This study assessed the surface softening and abrasive wear of eroded bovine enamel with or without the influence of toothbrushing. Five volunteers took part in this in situ study of 5 days. They wore acrylic palatal appliances containing 6 bovine enamel blocks divided in two rows with 3 blocks, which corresponded to the stud- ied groups: erosion without toothbrushing (GI)

Braz Oral Res; Daniela Rios; Heitor Marques Honrio; Ana Carolina Magalhes; Marlia Afonso; Rabelo Buzalaf; Regina Guenka Palma-Dibb; Maria Aparecida De Andrade; Moreira Machado; Salete Moura; Bonifcio da Silva

444

PROPOSIES DE DIFUSO DE CI?CIA E TECOLOGIA: UM ESTUDO DE CASO DE UMA PROPRIEDADE RURAL DO MUICPIO DE DRACEA, SP PROPOSAL OF SCIECE AD TECHOLOGY DIFFUSIO?: A CASE STUDY OF A RURAL PROPERTY IDRACEA, SP  

Microsoft Academic Search

The adoption of production techniques and technologies is necessary to increase efficiency in any activity. In the rural area it is not different. However, to achieve best results, they have to be adapted to family's social-economic characteristics, as well as to production and property features. Thus, the aim of this working-paper is to propose some techniques and technologies to improve

Ferenc Istvan Bnkuti; McLean Mcabb

445

Study of Mineral Regions in the Southern Rio Grande Shield with the Image 100 Multi-Spectral Analyzer Estudo de Regioes Mineralizadas Do Escudo Sulriograndense, Atraves de Processamentos Realizados No Analisador Multiespectral Image-100.  

National Technical Information Service (NTIS)

The Multispectral Image Analyzer (Image-100 System) was used to enlarge (1:100.000) and to enhance the Lavras do Sul, Minas do Camaqua and Passo do Marinheiro regions, using Contrast Stretching and Principal Components programs. These regions are constitu...

T. Ohara

1982-01-01

446

Polimorfismo dos Fragmentos de Restricao do DNA Ribossomal em Taxonomia Molecular de Leveduras: Estudo de um Genero (Restriction Fragment Polymorphism of Ribosomal DNA in Yeasts Molecular Taxonomy: Study of a Genus).  

National Technical Information Service (NTIS)

The study explored the possibility of obtaining species-specific probes based on cloned spacer sequences of rDNA using the type strain of the yeast Metschnikowia reukaufii as a model. The study isolated, cloned and mapped its rDNA. Subsequently sub-clones...

M. O. I. Henriques

1990-01-01

447

Estudo das influencias da implantacao da usina nuclear em Angra dos Reis (Angra-1). (Study of the influences of Angra-1 nuclear power plant construction in Angra dos Reis).  

National Technical Information Service (NTIS)

The report presents a comprehensive evaluation of the influence caused by Angra-1 Nuclear Power Plants (Central Nuclear Almirante Alvaro Alberto) construction on the Angra dos Reis City - Rio de Janeiro - Brazil. The analysis performed adopts a multi-dime...

L. Ferreira Netto

1982-01-01

448

Estudo da distribuicao da temperatura superficial do mar, na regiao da Central Nuclear de Angra dos Reis - Missao Angra 01. (Study of sea surface temperature distribution, in Angra dos Reis Nuclear Plant region - Mission Angra 01).  

National Technical Information Service (NTIS)

A study of spectral and temporal variations of sea surface temperature, using data obtained from level of satellite, aircraft and surface, with the purpose of evaluate and plot the small scale variations of sea surface temperature, due to thermal discharg...

M. R. Stevenson, C. A. Steffen, H. M. I. Villagra

1982-01-01

449

The calcium-activated chloride channel Anoctamin 1 contributes to the regulation of renal function.  

PubMed

The role of calcium-activated chloride channels for renal function is unknown. By immunohistochemistry we demonstrate dominant expression of the recently identified calcium-activated chloride channels, Anoctamin 1 (Ano1, TMEM16A) in human and mouse proximal tubular epithelial (PTE) cells, with some expression in podocytes and other tubular segments. Ano1-null mice had proteinuria and numerous large reabsorption vesicles in PTE cells. Selective knockout of Ano1 in podocytes (Ano1-/-/Nphs2-Cre) did not impair renal function, whereas tubular knockout in Ano1-/-/Ksp-Cre mice increased urine protein excretion and decreased urine electrolyte concentrations. Purinergic stimulation activated calcium-dependent chloride currents in isolated proximal tubule epithelial cells from wild-type but not from Ano1-/-/Ksp-Cre mice. Ano1 currents were activated by acidic pH, suggesting parallel stimulation of Ano1 chloride secretion with activation of the proton-ATPase. Lack of calcium-dependent chloride secretion in cells from Ano1-/-/Ksp-Cre mice was paralleled by attenuated proton secretion and reduced endosomal acidification, which compromised proximal tubular albumin uptake. Tubular knockout of Ano1 enhanced serum renin and aldosterone concentrations, probably leading to enhanced compensatory distal tubular reabsorption, thus maintaining normal blood pressure levels. Thus, Ano1 has a role in proximal tubular proton secretion and protein reabsorption. The results correspond to regulation of the proton-ATPase by the Ano1-homolog Ist2 in yeast. PMID:24476694

Faria, Diana; Rock, Jason R; Romao, Ana M; Schweda, Frank; Bandulik, Sascha; Witzgall, Ralph; Schlatter, Eberhard; Heitzmann, Dirk; Pavenstdt, Hermann; Herrmann, Edwin; Kunzelmann, Karl; Schreiber, Rainer

2014-06-01

450

Sequences of 12 monoclonal anti-dinitrophenyl spin-label antibodies for NMR studies  

SciTech Connect

Eleven monoclonal antibodies specific for a spin-labeled dinitrophenyl hapten (DNP-SL) have been produces for use in NMR studies. They have been named AN01 and ANO3-AN12. The stability constants for the association of these antibodies with DNP-SL and related haptens were measured by fluorescence quenching. cDNA clones coding for the heavy and light chains of each antibody and of an additional anti-DNP-SL monoclonal antibody, ANO2, have been isolated. The nucleic acid sequence of the 5{prime} end of each clone has been determined, and the amino acid sequence of the variable regions of each antibody has been deduced from the cDNA sequence. The sequences are relatively heterogeneous, but both the heavy and the light chains of ANO1 and ANO3 are derived from the same variable-region gene families as those of the ANO2 antibody. ANO7 has a heavy chain that is related to that of ANO2, and ANO9 has a related light chain. ANO5 and ANO6 are unrelated to ANO2 but share virtually identical heavy and light chains. Preliminary NMR difference spectra comparing related antibodies show that sequence-specific assignment of resonances is possible. Such spectra also provide a measure of structural relatedness.

Leahy, D.J.; Rule, G.S.; Whittaker, M.M.; McConnell, H.M. (Stanford Univ., CA (USA))

1988-06-01

451

Modelagem do vento e da fotosfera de AG Carinae  

NASA Astrophysics Data System (ADS)

A trajetria evolutiva das estrelas de alta massa depende fortemente de suas taxas de perda de massa. Apesar do rpido progresso no estudo destas estrelas, a taxa de perda de massa e outros parmetros fsicos bsicos, como a temperatura superficial e a velocidade terminal do vento ainda no esto bem determinados. Isto ocorre devido presena de ventos irregulares, rpidos e fortes ao redor destas estrelas, tornando a interpretao dos seus espectros uma tarefa difcil. Assim, a modelagem do vento e da fotosfera dessas estrelas est sendo cada vez mais usada para obter tais parmetros a partir dos espectros. O aumento da taxa de perda de massa durante a fase LBV (Variveis Luminosas Azuis), comparado com outros tipos de estrelas, tem sido atribudo a instabilidades do tipo S Doradus. Dispomos de uma base de dados espectroscpicos cobrindo 22 anos de observaes de AG Carinae, incluindo um ciclo S Doradus completo, com espectros CCD em alta resoluo na faixa ptica e infravermelha. Utilizamos o programa desenvolvido por Schmutz (1997) para uma anlise preliminar desse ciclo, obtendo a taxa de perda de massa a partir da linha do Ha. No existe uma correlao clara da taxa de perda de massa com mudanas da temperatura efetiva, do raio da estrela e do fluxo na banda V. A estrela atingiu seu mnimo fotomtrico (raio mnimo) em 1990 e o mximo fotomtrico (raio mximo) em 1995, enquanto que o fluxo mximo da linha do Ha ocorreu em 1996. Alm disso a taxa de perda de massa no segue esse ciclo, contrariamente s idias correntes. Para fazer um modelo mais realista estamos usando o programa CMFGEN (Hillier & Miller), que trata a fotosfera e o vento estelar de forma consistente, considerando a radiao fora do equilbrio termodinmico (NLTE) e com blanketting total de linhas. Simulamos o espectro de AG Carinae em duas pocas extremas do ciclo S Dor para testar os resultados obtidos com o modelo mais simplificado.

Groh, J. H.; Damineli, A.

2003-08-01

452

77 FR 31585 - Marine Mammals; File No. 16388  

Federal Register 2010, 2011, 2012, 2013

...Davis Strait, Baffin Bay, and Hudson Bay; waters off the U.S. North Pacific (California to Washington); and the Arctic Ocean including Bering, Chukchi and Beaufort Seas. The applicant requests takes of humpback, fin, blue, sei,...

2012-05-29

453

78 FR 25425 - Marine Mammals; File No. 16388  

Federal Register 2010, 2011, 2012, 2013

...Davis Strait, Baffin Bay, and Hudson Bay; waters off the U.S. North Pacific (California to Washington); and the Arctic Ocean including Bering, Chukchi and Beaufort Seas. Species to be targeted are humpback, fin, blue, sei, bowhead,...

2013-05-01

454

78 FR 56681 - Intent To Prepare a Supplemental Environmental Impact Statement for the Grays Harbor Navigation...  

Federal Register 2010, 2011, 2012, 2013

...Impact Statement for the Grays Harbor Navigation Improvement Project, Grays Harbor...SEIS) evaluating the Grays Harbor Navigation Improvement Project. The purpose of...the Grays Harbor and Chehalis River Navigation Project developed since the Corps...

2013-09-13

455

Das \\  

Microsoft Academic Search

Gesprchsanalyse, sei sie konversationsanalytischer, sozio- oder funktionalprag- matischer Provenienz, beansprucht, einen Beitrag zur Erklrung und Beschrei- bung sozialer Ordnung zu leisten. Vor diesem Hintergrund liegt es auf der Hand, (wieder) nach einer Anbindung an den sozialtheoretischen Diskurs zum \\

Stephan Habscheid

456

75 FR 41389 - Emergency Conservation Program  

Federal Register 2010, 2011, 2012, 2013

... Earthquakes; High winds, including micro-bursts; Volcanic eruptions; Storms, including ice storms; Landslides...disposal location as reburial onsite may be a water quality hazard. Prior to preparing and publishing a Draft SEIS...

2010-07-16

457

Importance of Physical Dispersion in Surface Wave and Free Oscillation Problems: Review.  

National Technical Information Service (NTIS)

Physical dispersion resulting from anelasticity is investigated from the point of view of linear viscoelastic models and causality relations. It is concluded that inasmuch as Z in the earth's mantle is nearly independent of frequency, at least in the seis...

H. Kanamori D. L. Anderson

1976-01-01

458

77 FR 1973 - Environmental Impact Statement: In the Vicinity of the City and Borough of Juneau, AK  

Federal Register 2010, 2011, 2012, 2013

...will prepare a supplemental environmental impact statement (SEIS...CONTACT: Mr. Tim Haugh, Environmental Program Manager, FHWA Alaska...SUPPLEMENTARY INFORMATION: A final environmental impact statement (FEIS...Empire, the Chilkat Valley News, the Skagway News,...

2012-01-12

459

77 FR 12908 - Appointment/Reappointment to the National Emergency Medical Services Advisory Council (NEMSAC)  

Federal Register 2010, 2011, 2012, 2013

...nationally recognized council of emergency...NEMSAC, 1200 New Jersey Avenue SE...is an advisory council established by...all aspects of development and implementation...submitting a new application...Administrator for Research and Program...

2012-03-02

460

75 FR 61511 - Intent To Prepare a Supplemental Environmental Impact Statement: Outer Continental Shelf, Alaska...  

Federal Register 2010, 2011, 2012, 2013

...exploration seismic surveying and drilling; oil development, production, and transportation; and accidental crude oil spills. 3. Scoping: In accordance with 40 CFR 1502.9(c)(4), there will be no scoping conducted for this SEIS....

2010-10-05

461

76 FR 32223 - Final Supplemental Environmental Impact Statement and Record of Decision for Incidental Take of...  

Federal Register 2010, 2011, 2012, 2013

...Supplemental Environmental Impact Statement and Record of...supplemental environmental impact statement (SEIS) which analyzes the environmental impacts associated with incidental...requirements of the Privacy Act and Freedom of Information Act,...

2011-06-03

462

Measurement in Practice.  

National Technical Information Service (NTIS)

Software researchers, such as the Software Engineering Institute (SEI) Software Process Program, encourage the use of measurement to aid the management of software development and maintenance. Measurement, for example, is critical to the software process ...

S. Rifkin C. Cox

1991-01-01

463

Measurement in Practice.  

National Technical Information Service (NTIS)

The Software Engineering Institute (SEI) Software Process Program encourages the use of measurement to aid the management of software development and maintenance. As part of our encouragement, we seek to expose software practitioners and managers to the g...

C. Cox S. Rifkin

1991-01-01

464

75 FR 10754 - Humboldt-Toiyabe National Forests; Santa Rosa Ranger District; Martin Basin Rangeland Management...  

Federal Register 2010, 2011, 2012, 2013

...utilization) would be based on the current ecological conditions (functioning...analysis in the SEIS: 1. Current Management Alternative: Continue current grazing management. 2. No...Higgins, Forest Supervisor, Humboldt-Toiyabe National...

2010-03-09

465

Unraveling manganese dissolution/deposition mechanisms on the negative electrode in lithium ion batteries.  

PubMed

The structure, chemistry, and spatial distribution of Mn-bearing nanoparticles dissolved from the Li1.05Mn2O4 cathode during accelerated electrochemical cycling tests at 55 C and deposited within the solid electrolyte interphase (SEI) are directly characterized through HRTEM imaging and XPS. Here we use air protection and vacuum transfer systems to transport cycled electrodes for imaging and analytical characterization. From HRTEM imaging, we find that a band of individual metallic Mn nanoparticles forms locally at the SEI/graphite interface while the internal and outermost layer of the SEI contains a mixture of LiF and MnF2 nanoparticles, which is confirmed with XPS. Based on our experimental findings we propose a new interpretation of how Mn is reduced from the cathode and how metallic Mn and Mn-bearing nanoparticles form within the SEI during electrochemical cycling. PMID:24733563

Xiao, Xingcheng; Liu, Zhongyi; Baggetto, Loc; Veith, Gabriel M; More, Karren L; Unocic, Raymond R

2014-06-14

466

50 CFR 216.171 - Effective dates and definitions.  

Code of Federal Regulations, 2011 CFR

...mother/calf pair of any of the following marine mammals of concern: Beaked whale of any species, Kogia sp., Risso's dolphin, melon-headed whale, pilot whales, humpback whales, sperm whales, blue whales, fin whales, sei...

2011-10-01

467

50 CFR 216.172 - Permissible methods of taking.  

Code of Federal Regulations, 2012 CFR

... (i) Mysticetes: (A) Humpback whale (Megaptera novaeangliae )49470 (an average of 9894 annually). (B) Minke whale (Balaenoptera acutorostrata )320 (an average of 64 annually). (C) Sei whale (Balaenoptera borealis )230...

2012-10-01

468

50 CFR 216.171 - Effective dates and definitions.  

Code of Federal Regulations, 2012 CFR

...mother/calf pair of any of the following marine mammals of concern: Beaked whale of any species, Kogia sp., Risso's dolphin, melon-headed whale, pilot whales, humpback whales, sperm whales, blue whales, fin whales, sei...

2012-10-01

469

50 CFR 216.172 - Permissible methods of taking.  

Code of Federal Regulations, 2011 CFR

... (i) Mysticetes: (A) Humpback whale (Megaptera novaeangliae )49470 (an average of 9894 annually). (B) Minke whale (Balaenoptera acutorostrata )320 (an average of 64 annually). (C) Sei whale (Balaenoptera borealis )230...

2011-10-01

470

Science Sampler: From speaking to writing in the structured English immersion science classroom  

NSDL National Science Digital Library

In most cases, structured English immersion (SEI) has replaced bilingual and English as a second language (ESL) programs as the preferred method of educating English language learners (ELLs). As a result, science teachers need specific strategies to devel

G�mez, Conrado L.; Jimenez-Silva, Margarita

2010-09-01

471

Agora: A Search Engine for Software Components.  

National Technical Information Service (NTIS)

Agora is a software prototype being developed by the Commercial Off the Shelf (COTS) Based Systems Initiative at the Software Engineering Institute (SEI). The object of this work is to create an automatically generated and indexed worldwide database of so...

R. C. Seacord S. A. Hissam K. C. Wallnau

1998-01-01

472

78 FR 23538 - Marine Mammals; File No. 17312  

Federal Register 2010, 2011, 2012, 2013

...blue (Balaenoptera musculus), fin (B. physalus), sei (B. borealis), Southern Resident stock of killer (Orcinus orca), Hawaii insular stock of false killer (Pseudorca crassidens), sperm (Physeter macrocephalus), North Pacific...

2013-04-19

473

78 FR 77108 - Intent To Prepare a Draft Supplemental Environmental Impact Statement for the Middle Mississippi...  

Federal Register 2010, 2011, 2012, 2013

...Impact Statement for the Middle Mississippi River Regulating Works Project, Missouri and...statement (SEIS) for the Middle Mississippi River Regulating Works Project. This project...navigation channel on the Middle Mississippi River. The Middle Mississippi River is...

2013-12-20

474

Model in Joint Information Technology, Supreme Command Headquarters.  

National Technical Information Service (NTIS)

The Software Engineering Institute's (SEI) Capability Maturity Model (CMM) is analyzed to identify its technological and economic applicability for the Joint Information Technology (JIT), Supreme Command Headquarters, Royal Thai Ministry of Defense. Kurt ...

J. Thongmuang

1995-01-01

475

75 FR 39577 - Draft Supplemental Environmental Impact Statement on the Issuance of Annual Regulations...  

Federal Register 2010, 2011, 2012, 2013

...supplemental environmental impact statement (SEIS) for...direct, indirect, and cumulative environmental effects...we also discuss the impact of cumulative harvest of migratory...regard to their potential impacts on migratory bird...

2010-07-09

476

Examining the solid electrolyte interphase on binder-free graphite electrodes.  

SciTech Connect

The solid electrode interphase (SEI) on graphite electrodes is important to the performance, calendar life, and safety characteristics of lithium-ion cells. This article examines the SEI formed on binder-free graphite electrodes prepared by electrophoretic deposition. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis data were obtained on electrodes cycled in cells containing four electrolytes comprising ethylene carbonate: ethylmethyl carbonate (3:7 by weight) solvent and 1.2 M LiPF{sub 6}, 1 M LiF{sub 2}BC{sub 2}O{sub 4}, 1 M LiBF{sub 4}, or 0.7 M LiB(C{sub 2}O{sub 4}){sub 2} salt. Our observations suggest that, in addition to solvent reduction, the reduction of electrolyte salts plays an important role in SEI formation. Mechanisms to account for the formation of these SEI constituents are included in the article.

Xiao, A.; Yang, L.; Lucht, B. L.; Kang, S.-H.; Abraham, D. P. (Chemical Sciences and Engineering Division); (Univ. of Rhode Island)

2009-01-01

477

Software Process Assessment for Small Software Shops.  

National Technical Information Service (NTIS)

Software process assessment is rapidly becoming an important technique for improving software development within organizations. The maturity framework is the basis for the Software Engineering Institute's (SEI) Software Process Assessment (SPA), which has...

J. P. Rich A. Cooper

1991-01-01

478

Lithium Dinitramide as an Additive in Lithium Power Cells  

NASA Technical Reports Server (NTRS)

Lithium dinitramide, LiN(NO2)2 has shown promise as an additive to nonaqueous electrolytes in rechargeable and non-rechargeable lithium-ion-based electrochemical power cells. Such non-aqueous electrolytes consist of lithium salts dissolved in mixtures of organic ethers, esters, carbonates, or acetals. The benefits of adding lithium dinitramide (which is also a lithium salt) include lower irreversible loss of capacity on the first charge/discharge cycle, higher cycle life, lower self-discharge, greater flexibility in selection of electrolyte solvents, and greater charge capacity. The need for a suitable electrolyte additive arises as follows: The metallic lithium in the anode of a lithium-ion-based power cell is so highly reactive that in addition to the desired main electrochemical reaction, it engages in side reactions that cause formation of resistive films and dendrites, which degrade performance as quantified in terms of charge capacity, cycle life, shelf life, first-cycle irreversible capacity loss, specific power, and specific energy. The incidence of side reactions can be reduced through the formation of a solid-electrolyte interface (SEI) a thin film that prevents direct contact between the lithium anode material and the electrolyte. Ideally, an SEI should chemically protect the anode and the electrolyte from each other while exhibiting high conductivity for lithium ions and little or no conductivity for electrons. A suitable additive can act as an SEI promoter. Heretofore, most SEI promotion was thought to derive from organic molecules in electrolyte solutions. In contrast, lithium dinitramide is inorganic. Dinitramide compounds are known as oxidizers in rocket-fuel chemistry and until now, were not known as SEI promoters in battery chemistry. Although the exact reason for the improvement afforded by the addition of lithium dinitramide is not clear, it has been hypothesized that lithium dinitramide competes with other electrolyte constituents to react with lithium on the surface of the anode to form a beneficial SEI. Apparently, nitrides and oxides that result from reduction of lithium dinitramide on the anode produce a thin, robust SEI different from the SEIs formed from organic SEI promoters. The SEI formed from lithium dinitramide is more electronically insulating than is the film formed in the presence of an otherwise identical electrolyte that does not include lithium dinitramide. SEI promotion with lithium dinitramide is useful in batteries with metallic lithium and lithium alloy anodes.

Gorkovenko, Alexander A.

2007-01-01

479

Implementing cleanroom software engineering into a mature CMM-based software organization  

Microsoft Academic Search

Dallas, TX 75243, USA 214.995.83 17 oshana@ &corn This report describes the adoption of Cleamoom Software Engineering Methodology into a mature software organization as defined by the SEIs Capability Maturity Model. The organization, a defense contractor operating at SE1 Level 4\\/5, has been working to develop a large real time system under tight budget and schedule constraints. This overview describes

Robert Oshana; Frank P. Coyle

1997-01-01

480

The Space Exploration Initiative: a challenge to advanced life support technologies: keynote presentation.  

PubMed

President Bush has enunciated an unparalleled, open-ended commitment to human exploration of space called the Space Exploration Initiative (SEI). At the heart of the SEI is permanent human presence beyond Earth orbit, which implies a new emphasis on life science research and life support system technology. Proposed bioregenerative systems for planetary surface bases will require carefully designed waste processing elements whose development will lead to streamlined and efficient and efficient systems for applications on Earth. PMID:11537682

Mendell, W W

1991-10-01

481

Kinetic Monte Carlo simulation of surface heterogeneity in graphite anodes for lithium-ion batteries: Passive layer formation  

Microsoft Academic Search

The properties and chemical composition of the solid-electrolyte-interface (SEI) layer have been a subject of intense research due to their importance in the safety, capacity fade, and cycle life of Li-ion secondary batteries. Kinetic Monte Carlo (KMC) simulation is applied to explore the formation of the passive SEI layer in the tangential direction of the lithium- ion intercalation in a

Ravi N. Methekar; Paul W. C. Northrop; Kejia Chen; Richard D. Braatz; Venkat R. Subramanian

2011-01-01

482

Lithium-metal potential in Li + containing ionic liquids  

Microsoft Academic Search

Impedance spectroscopy studies of the interface between lithium and ionic liquid (IL) showed the formation of a film (solid\\u000a electrolyte interface, SEI), protecting metal from its further dissolution. Consequently, the potential of metallic lithium\\u000a immersed in an electrolyte containing Li+ cations may be described as a Li|SEI|Li+ system, rather than simply Li\\/Li+. The potential of lithium-metal in a series of

Andrzej Lewandowski; Agnieszka Swiderska-Mocek

2010-01-01

483

Numerical Study on Quench Process in Multi-Sectioned Adiabatic Superconducting Electromagnetic Iron Separator  

Microsoft Academic Search

A two-dimensional quench simulation model was developed for the Superconducting Electromagnetic Iron Separator (SEIS) system, which is designed to separate small pieces of ferromagnetic materials, such as detonators, from coal to achieve high purity and good yield. The SEIS coil adopted passive quench protection system with four-sectioned arrangement, each shunted with four diodes. The aluminum slices, with 99.99% purity and

Wenbin Ma; Zhilong Hou; Jing Yan; Guoqing Zhang; Liqiang Liu; Zian Zhu

2010-01-01

484

'Safer environment interventions': a qualitative synthesis of the experiences and perceptions of people who inject drugs.  

PubMed

There is growing acknowledgment that social, structural, and environmental forces produce vulnerability to health harms among people who inject drugs (PWID), and safer environment interventions (SEI) have been identified as critical to mitigating the impacts of these contextual forces on drug-related harm. To date, however, SEIs have been under-theorized in the literature, and how they minimize drug-related risks across intervention types and settings has not been adequately examined. This article presents findings from a systematic review and meta-synthesis of qualitative studies reporting PWID's experiences with three types of SEIs (syringe exchange programmes, supervised injection facilities and peer-based harm reduction interventions) published between 1997 and 2012. This meta-synthesis sought to develop a comprehensive understanding of SEIs informed by the experiences of PWID. Twenty-nine papers representing twenty-one unique studies that included an aggregate of more than 800 PWID were included in this meta-synthesis. This meta-synthesis found that SEIs fostered social and physical environments that mitigated drug-related harms and increased access to social and material resources. Specifically, SEIs: (1) provided refuge from street-based drug scenes; (2) enabled safer injecting by reshaping the social and environmental contexts of injection drug use; (3) mediated access to resources and health care services; and, (4) were constrained by drug prohibition and law enforcement activities. These findings indicate that it is critical to situate SEIs in relation to the lived experiences of PWID, and in particular provide broader environmental support to PWID. Given that existing drug laws limit the effectiveness of interventions, drug policy reforms are needed to enable public health, and specifically SEIs, to occupy a more prominent role in the response to injection drug use. PMID:24561777

McNeil, Ryan; Small, Will

2014-04-01

485

The Space Exploration Initiative: a challenge to advanced life support technologies: keynote presentation  

NASA Technical Reports Server (NTRS)

President Bush has enunciated an unparalleled, open-ended commitment to human exploration of space called the Space Exploration Initiative (SEI). At the heart of the SEI is permanent human presence beyond Earth orbit, which implies a new emphasis on life science research and life support system technology. Proposed bioregenerative systems for planetary surface bases will require carefully designed waste processing elements whose development will lead to streamlined and efficient and efficient systems for applications on Earth.

Mendell, W. W.

1991-01-01

486

The seirena B Class Floral Homeotic Mutant of California Poppy (Eschscholzia californica) Reveals a Function of the Enigmatic PI Motif in the Formation of Specific Multimeric MADS Domain Protein Complexes[C][W][OA  

PubMed Central

The products of B class floral homeotic genes specify petal and stamen identity, and loss of B function results in homeotic conversions of petals into sepals and stamens into carpels. Here, we describe the molecular characterization of seirena-1 (sei-1), a mutant from the basal eudicot California poppy (Eschscholzia californica) that shows homeotic changes characteristic of floral homeotic B class mutants. SEI has been previously described as EScaGLO, one of four B classrelated MADS box genes in California poppy. The C terminus of SEI, including the highly conserved PI motif, is truncated in sei-1 proteins. Nevertheless, like the wild-type SEI protein, the sei-1 mutant protein is able to bind CArG-boxes and can form homodimers, heterodimers, and several higher order complexes with other MADS domain proteins. However, unlike the wild type, the mutant protein is not able to mediate higher order complexes consisting of specific B, C, and putative E class related proteins likely involved in specifying stamen identity. Within the PI motif, five highly conserved N-terminal amino acids are specifically required for this interaction. Several families lack this short conserved sequence, including the Brassicaceae, and we propose an evolutionary scenario to explain these functional differences.

Lange, Matthias; Orashakova, Svetlana; Lange, Sabrina; Melzer, Rainer; Theissen, Gunter; Smyth, David R.; Becker, Annette

2013-01-01

487

Advanced Lithium Ion Battery Materials Prepared with Atomic Layer Deposition  

NASA Astrophysics Data System (ADS)

As the world consumes the dwindling supply of fossil fuels, an alternative to gasoline powered vehicles will become necessary. Lithium ion batteries (LIBs) are emerging as the dominant power source for portable electronics, and are seen as a promising energy source in the development of electric vehicles. Current LIB technology is not well suited for vehicles, increases in the energy density, power density and durability are needed before LIB are ready for widespread use in electric vehicles. LiCoO2 and graphite are the dominant cathode and anode active materials, respectively in LIBs. On the cathode side, instabilities in LiCoO 2 can lead to the deterioration of the LIB. Decomposition of electrolyte on the graphite anode surface to form a solid-electrolyte interphase (SEI) consumes lithium from the cathode resulting in a lower battery capacity. Instabilities in the in the SEI can result in catastrophic battery failure. Previous studies have employed metal oxides films, typically grown with wet chemical techniques, to stabilize LiCoO2 and mitigate the formation of the SEI on graphite. The thicknesses of films grown with wet chemical techniques was typically 50--1000 A. In order to achieve higher power densities, the particle size of LIB active materials is being scaled down. As active materials get smaller the mass contribution of a protective film can become a significant fraction of the total mass. Atomic layer deposition (ALD) has been used to grow ultra thin films of Al2O3 on LiCoO2 and graphite. By altering the interaction between the active material and the battery electrolyte it was possible to improve the stability of both LiCoO2 and graphite electrodes in LIBs. In the case of graphite, the Al2O3 film may be thought of as an artificial SEI. During the initial charge-discharge cycle of a LIB, the electrolyte decomposes on the anode to form the SEI. The formation of the SEI is believed to prevent further decomposition of the electrolyte on the anode surface. The SEI contains electrolyte decomposition products including Li2CO3, Li2O, LiOH, LiF and R-OLi. In order to grow a truly artificial SEI on the graphite anode, i.e. grow a film that mimics the SEI that forms during charge-discharge cycling, new ALD chemistries for the growth of Li2CO3 and LiOH have been developed. The ALD of an artificial SEI layer may limit lithium loss and improve the capacity stability during charge-discharge cycles.

Cavanagh, Andrew S.

488

More on the Abrikosov strings with non-Abelian moduli  

NASA Astrophysics Data System (ADS)

We continue explorations of deformed Abrikosov-Nielsen-Olesen (ANO) strings, with non-Abelian moduli on the worldsheet. In a simple model with an extra field, we find classically stable ANO and non-Abelian strings. The tension of the latter is a few percent lower than the tension of the ANO string. Then, we calculate the interpolating field configuration. Once the kink mass Mk and the difference of tensions ?T are found, we calculate the decay rate of the ANO string with a higher tension ("false vacuum") into the non-Abelian string with the lower tension ("genuine vacuum") through the "bubble" formation in the quasiclassical approximation.

Shifman, M.; Tallarita, Gianni; Yung, Alexei

2014-04-01

489

Conditions required for high quality high magnification images in secondary electron-I scanning electron microscopy.  

PubMed

High quality of secondary electron (SE) images, taken at useful magnifications of 100,000 to 200,000, require new signal generation and collection methods and new metal coating procedures. High quality is defined as the condition under which image contrast describes accurately the topographic features of the specimen in a size range that approximates the beam diameter. Such high resolution contrasts are produced by the SE (SE-I) generated by a small electron probe on the specimen surface. Tobacco mosiac virus and ferritin molecules deposited on bulk substrates were introduced as test specimens to check the image quality obtained. The SE-I signal contrast could be imaged when SE (SE-III), produced by backscattered electrons (BSE) at the pole piece of the final lens, were eliminated with an electron absorption device attached to the pole piece. This signal collection procedure will be referred to as "Secondary Electron-I Image" (SE-I image) mode. In addition to the SE-III, BSE generate SE-II in the specimen itself. On specimens deposited on bulk gold or platinum, and coated with the same metals SE-II produced a microroughness contrast that limited particle resolution in the SE-I image mode to approximately 10 nm. Reduction of SE-II and enrichment of the signal in SE-I was achieved by using continuous fine crystalline coatings of tantalum, niobium and chromium. By applying these metals in films of approximately 2.0 nm thickness, the SE-I contrast generation was found to be indepedent of the atomic number of the metal. Edge sharpness was improved when the specimens were coated with low atomic number metals. Under these conditions, the quality of images obtained in SE-I image mode equals that of images obtained in TEM from identically coated specimens and was limited only by the size of the topographic details, beam diameter and beam current. PMID:7184136

Peters, K R

1982-01-01

490

Artificial solid electrolyte interphase to address the electrochemical degradation of silicon electrodes.  

PubMed

Electrochemical degradation on silicon (Si) anodes prevents them from being successfully used in lithium (Li)-ion battery full cells. Unlike the case of graphite anodes, the natural solid electrolyte interphase (SEI) films generated from carbonate electrolytes do not self-passivate on Si, causing continuous electrolyte decomposition and loss of Li ions. In this work, we aim at solving the issue of electrochemical degradation by fabricating artificial SEI films using a solid electrolyte material, lithium phosphorus oxynitride (Lipon), which conducts Li ions and blocks electrons. For Si anodes coated with Lipon of 50 nm or thicker, a significant effect is observed in suppressing electrolyte decomposition, while Lipon of thinner than 40 nm has a limited effect. Ionic and electronic conductivity measurements reveal that the artificial SEI is effective when it is a pure ionic conductor, but electrolyte decomposition is only partially suppressed when the artificial SEI is a mixed electronic-ionic conductor. The critical thickness for this transition in conducting behavior is found to be 40-50 nm. This work provides guidance for designing artificial SEI films for high-capacity Li-ion battery electrodes using solid electrolyte materials. PMID:24926882

Li, Juchuan; Dudney, Nancy J; Nanda, Jagjit; Liang, Chengdu

2014-07-01

491

Application and verification of the soil-ecological index for assessing soil cover patterns on plowlands  

NASA Astrophysics Data System (ADS)

The reformation of Russian agriculture and the development of landscape-adaptive agricultural systems have generated interest in the agroecological aspects of studying soil cover patterns. The qualitative evaluation of soil resources is necessary for objective comparison of their quality at the landscape, regional, and interregional levels. The applicability of the soil-ecological index (SEI) as an integral criterion for quality assessment of soils, soil associations, and soil cover patterns on the basis of a common all-Russia scale has been experimentally verified on test plots. This index can also be applied for assessing the degree of contrast in the soil cover. The analysis of different soil-climatic regions in the European part of Russia has shown that the SEI value is well correlated with the soil-climatic conditions. However, for a