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Sample records for criticality validation suite

  1. Space Suit Joint Torque Measurement Method Validation

    Science.gov (United States)

    Valish, Dana; Eversley, Karina

    2012-01-01

    In 2009 and early 2010, a test method was developed and performed to quantify the torque required to manipulate joints in several existing operational and prototype space suits. This was done in an effort to develop joint torque requirements appropriate for a new Constellation Program space suit system. The same test method was levied on the Constellation space suit contractors to verify that their suit design met the requirements. However, because the original test was set up and conducted by a single test operator there was some question as to whether this method was repeatable enough to be considered a standard verification method for Constellation or other future development programs. In order to validate the method itself, a representative subset of the previous test was repeated, using the same information that would be available to space suit contractors, but set up and conducted by someone not familiar with the previous test. The resultant data was compared using graphical and statistical analysis; the results indicated a significant variance in values reported for a subset of the re-tested joints. Potential variables that could have affected the data were identified and a third round of testing was conducted in an attempt to eliminate and/or quantify the effects of these variables. The results of the third test effort will be used to determine whether or not the proposed joint torque methodology can be applied to future space suit development contracts.

  2. Engineering Software Suite Validates System Design

    Science.gov (United States)

    2007-01-01

    EDAptive Computing Inc.'s (ECI) EDAstar engineering software tool suite, created to capture and validate system design requirements, was significantly funded by NASA's Ames Research Center through five Small Business Innovation Research (SBIR) contracts. These programs specifically developed Syscape, used to capture executable specifications of multi-disciplinary systems, and VectorGen, used to automatically generate tests to ensure system implementations meet specifications. According to the company, the VectorGen tests considerably reduce the time and effort required to validate implementation of components, thereby ensuring their safe and reliable operation. EDASHIELD, an additional product offering from ECI, can be used to diagnose, predict, and correct errors after a system has been deployed using EDASTAR -created models. Initial commercialization for EDASTAR included application by a large prime contractor in a military setting, and customers include various branches within the U.S. Department of Defense, industry giants like the Lockheed Martin Corporation, Science Applications International Corporation, and Ball Aerospace and Technologies Corporation, as well as NASA's Langley and Glenn Research Centers

  3. A Test Suite for Safety-Critical Java using JML

    DEFF Research Database (Denmark)

    Ravn, Anders Peter; Søndergaard, Hans

    2013-01-01

    Development techniques are presented for a test suite for the draft specification of the Java profile for Safety-Critical Systems. Distinguishing features are: specification of conformance constraints in the Java Modeling Language, encoding of infrastructure concepts without implementation bias...

  4. A Test Suite for Safety-Critical Java using JML

    DEFF Research Database (Denmark)

    Ravn, Anders P.; Søndergaard, Hans

    2013-01-01

    Development techniques are presented for a test suite for the draft specification of the Java profile for Safety-Critical Systems. Distinguishing features are: specification of conformance constraints in the Java Modeling Language, encoding of infrastructure concepts without implementation bias......, and corresponding specifications of implicitly stated behavioral and real-time properties. The test programs are auto-generated from the specification, while concrete values for test parameters are selected manually. The suite is open source and publicly accessible....

  5. The use of anti-gravity suits for the control of critical intra-abdominal hemmorhage

    Science.gov (United States)

    Kravik, S.; Landmark, K.

    1980-01-01

    The history and use as well as the physiology of the use of antigravity suits for the control of critical intra-abdominal hemorrhages is reviewed. The use of this suit is highly recommended, especially for first aid.

  6. Stochastic Particle Real Time Analyzer (SPARTA) Validation and Verification Suite

    Energy Technology Data Exchange (ETDEWEB)

    Gallis, Michael A. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Fluid Science and Engineering Dept.; Koehler, Timothy P. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Fluid Science and Engineering Dept.; Plimpton, Steven J. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Multi Scale Science Dept.

    2014-10-01

    This report presents the test cases used to verify, validate and demonstrate the features and capabilities of the first release of the 3D Direct Simulation Monte Carlo (DSMC) code SPARTA (Stochastic Real Time Particle Analyzer). The test cases included in this report exercise the most critical capabilities of the code like the accurate representation of physical phenomena (molecular advection and collisions, energy conservation, etc.) and implementation of numerical methods (grid adaptation, load balancing, etc.). Several test cases of simple flow examples are shown to demonstrate that the code can reproduce phenomena predicted by analytical solutions and theory. A number of additional test cases are presented to illustrate the ability of SPARTA to model flow around complicated shapes. In these cases, the results are compared to other well-established codes or theoretical predictions. This compilation of test cases is not exhaustive, and it is anticipated that more cases will be added in the future.

  7. Test Suite for Nuclear Data I: Deterministic Calculations for Critical Assemblies and Replacement Coefficients

    Energy Technology Data Exchange (ETDEWEB)

    Pruet, J; Brown, D A; Descalle, M

    2006-05-22

    The authors describe tools developed by the Computational Nuclear Physics group for testing the quality of internally developed nuclear data and the fidelity of translations from ENDF formatted data to ENDL formatted data used by Livermore. These tests include S{sub n} calculations for the effective k value characterizing critical assemblies and for replacement coefficients of different materials embedded in the Godiva and Jezebel critical assemblies. For those assemblies and replacement materials for which reliable experimental information is available, these calculations provide an integral check on the quality of data. Because members of the ENDF and reactor communities use calculations for these same assemblies in their validation process, a comparison between their results with ENDF formatted data and their results with data translated into the ENDL format provides a strong check on the accuracy of translations. As a first application of the test suite they present a study comparing ENDL 99 and ENDF/B-V. They also consider the quality of the ENDF/B-V translation previously done by the Computational Nuclear Physics group. No significant errors are found.

  8. Method development and validations: characterization of critical ...

    African Journals Online (AJOL)

    Method development and validations: characterization of critical elements in the development of pharmaceuticals. ... International Journal of Health Research ... Although a thorough validation cannot rule out all potential problems, the process of method development and validation should address the most common ones.

  9. Critical validation studies of neurofeedback.

    Science.gov (United States)

    Gruzelier, John; Egner, Tobias

    2005-01-01

    The field of neurofeedback training has proceeded largely without validation. In this article the authors review studies directed at validating sensory motor rhythm, beta and alpha-theta protocols for improving attention, memory, and music performance in healthy participants. Importantly, benefits were demonstrable with cognitive and neurophysiologic measures that were predicted on the basis of regression models of learning to enhance sensory motor rhythm and beta activity. The first evidence of operant control over the alpha-theta ratio is provided, together with remarkable improvements in artistic aspects of music performance equivalent to two class grades in conservatory students. These are initial steps in providing a much needed scientific basis to neurofeedback.

  10. Validating the Watson Glaser Critical Thinking Appraisal

    Science.gov (United States)

    Hassan, Karma El; Madhum, Ghida

    2007-01-01

    This study validated the Watson Glaser Critical Thinking Appraisal (WGCTA) on a sample of 273 private university students in Lebanon. For that purpose, evidence for construct validation was investigated through identifying the test's factor structure and subscale total correlations, in addition to differences in scores by gender, different levels,…

  11. Validation of Yoon's Critical Thinking Disposition Instrument.

    Science.gov (United States)

    Shin, Hyunsook; Park, Chang Gi; Kim, Hyojin

    2015-12-01

    The lack of reliable and valid evaluation tools targeting Korean nursing students' critical thinking (CT) abilities has been reported as one of the barriers to instructing and evaluating students in undergraduate programs. Yoon's Critical Thinking Disposition (YCTD) instrument was developed for Korean nursing students, but few studies have assessed its validity. This study aimed to validate the YCTD. Specifically, the YCTD was assessed to identify its cross-sectional and longitudinal measurement invariance. This was a validation study in which a cross-sectional and longitudinal (prenursing and postnursing practicum) survey was used to validate the YCTD using 345 nursing students at three universities in Seoul, Korea. The participants' CT abilities were assessed using the YCTD before and after completing an established pediatric nursing practicum. The validity of the YCTD was estimated and then group invariance test using multigroup confirmatory factor analysis was performed to confirm the measurement compatibility of multigroups. A test of the seven-factor model showed that the YCTD demonstrated good construct validity. Multigroup confirmatory factor analysis findings for the measurement invariance suggested that this model structure demonstrated strong invariance between groups (i.e., configural, factor loading, and intercept combined) but weak invariance within a group (i.e., configural and factor loading combined). In general, traditional methods for assessing instrument validity have been less than thorough. In this study, multigroup confirmatory factor analysis using cross-sectional and longitudinal measurement data allowed validation of the YCTD. This study concluded that the YCTD can be used for evaluating Korean nursing students' CT abilities. Copyright © 2015. Published by Elsevier B.V.

  12. A suite of essential biodiversity variables for detecting critical biodiversity change.

    Science.gov (United States)

    Schmeller, Dirk S; Weatherdon, Lauren V; Loyau, Adeline; Bondeau, Alberte; Brotons, Lluis; Brummitt, Neil; Geijzendorffer, Ilse R; Haase, Peter; Kuemmerlen, Mathias; Martin, Corinne S; Mihoub, Jean-Baptiste; Rocchini, Duccio; Saarenmaa, Hannu; Stoll, Stefan; Regan, Eugenie C

    2017-04-26

    Key global indicators of biodiversity decline, such as the IUCN Red List Index and the Living Planet Index, have relatively long assessment intervals. This means they, due to their inherent structure, function as late-warning indicators that are retrospective, rather than prospective. These indicators are unquestionably important in providing information for biodiversity conservation, but the detection of early-warning signs of critical biodiversity change is also needed so that proactive management responses can be enacted promptly where required. Generally, biodiversity conservation has dealt poorly with the scattered distribution of necessary detailed information, and needs to find a solution to assemble, harmonize and standardize the data. The prospect of monitoring essential biodiversity variables (EBVs) has been suggested in response to this challenge. The concept has generated much attention, but the EBVs themselves are still in development due to the complexity of the task, the limited resources available, and a lack of long-term commitment to maintain EBV data sets. As a first step, the scientific community and the policy sphere should agree on a set of priority candidate EBVs to be developed within the coming years to advance both large-scale ecological research as well as global and regional biodiversity conservation. Critical ecological transitions are of high importance from both a scientific as well as from a conservation policy point of view, as they can lead to long-lasting biodiversity change with a high potential for deleterious effects on whole ecosystems and therefore also on human well-being. We evaluated candidate EBVs using six criteria: relevance, sensitivity to change, generalizability, scalability, feasibility, and data availability and provide a literature-based review for eight EBVs with high sensitivity to change. The proposed suite of EBVs comprises abundance, allelic diversity, body mass index, ecosystem heterogeneity, phenology

  13. Assessment of the Value, Impact, and Validity of the Jobs and Economic Development Impacts (JEDI) Suite of Models

    Energy Technology Data Exchange (ETDEWEB)

    Billman, L.; Keyser, D.

    2013-08-01

    The Jobs and Economic Development Impacts (JEDI) models, developed by the National Renewable Energy Laboratory (NREL) for the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), use input-output methodology to estimate gross (not net) jobs and economic impacts of building and operating selected types of renewable electricity generation and fuel plants. This analysis provides the DOE with an assessment of the value, impact, and validity of the JEDI suite of models. While the models produce estimates of jobs, earnings, and economic output, this analysis focuses only on jobs estimates. This validation report includes an introduction to JEDI models, an analysis of the value and impact of the JEDI models, and an analysis of the validity of job estimates generated by JEDI model through comparison to other modeled estimates and comparison to empirical, observed jobs data as reported or estimated for a commercial project, a state, or a region.

  14. Validation of SCALE 6.2 Criticality Calculations Using KENO V.A and KENO-VI

    Energy Technology Data Exchange (ETDEWEB)

    Marshall, William BJ.J. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Rearden, Bradley T. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Jones, Elizabeth L. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2015-01-01

    SCALE is a widely used suite of tools for nuclear systems modeling and simulation that provides comprehensive, verified and validated, user-friendly capabilities for criticality safety, reactor physics, radiation shielding, and sensitivity and uncertainty analysis. Since 1980, regulators, industry, and research institutions around the world have relied on SCALE for nuclear safety analysis and design. SCALE 6.2 provides several new capabilities and significant improvements in many existing features for criticality safety analysis.

  15. Development and Validation of the Critical Consciousness Scale

    Science.gov (United States)

    Diemer, Matthew A.; Rapa, Luke J.; Park, Catalina J.; Perry, Justin C.

    2017-01-01

    This article details the development and validation of a measure of critical consciousness, defined as the capacity of oppressed or marginalized people to critically analyze their social and political conditions, endorsement of societal equality, and action to change perceived inequities. In Study 1, an exploratory factor analysis (EFA) was…

  16. WSRC approach to validation of criticality safety computer codes

    Energy Technology Data Exchange (ETDEWEB)

    Finch, D.R.; Mincey, J.F.

    1991-12-31

    Recent hardware and operating system changes at Westinghouse Savannah River Site (WSRC) have necessitated review of the validation for JOSHUA criticality safety computer codes. As part of the planning for this effort, a policy for validation of JOSHUA and other criticality safety codes has been developed. This policy will be illustrated with the steps being taken at WSRC. The objective in validating a specific computational method is to reliably correlate its calculated neutron multiplication factor (K{sub eff}) with known values over a well-defined set of neutronic conditions. Said another way, such correlations should be: (1) repeatable; (2) demonstrated with defined confidence; and (3) identify the range of neutronic conditions (area of applicability) for which the correlations are valid. The general approach to validation of computational methods at WSRC must encompass a large number of diverse types of fissile material processes in different operations. Special problems are presented in validating computational methods when very few experiments are available (such as for enriched uranium systems with principal second isotope {sup 236}U). To cover all process conditions at WSRC, a broad validation approach has been used. Broad validation is based upon calculation of many experiments to span all possible ranges of reflection, nuclide concentrations, moderation ratios, etc. Narrow validation, in comparison, relies on calculations of a few experiments very near anticipated worst-case process conditions. The methods and problems of broad validation are discussed.

  17. WSRC approach to validation of criticality safety computer codes

    Energy Technology Data Exchange (ETDEWEB)

    Finch, D.R.; Mincey, J.F.

    1991-01-01

    Recent hardware and operating system changes at Westinghouse Savannah River Site (WSRC) have necessitated review of the validation for JOSHUA criticality safety computer codes. As part of the planning for this effort, a policy for validation of JOSHUA and other criticality safety codes has been developed. This policy will be illustrated with the steps being taken at WSRC. The objective in validating a specific computational method is to reliably correlate its calculated neutron multiplication factor (K{sub eff}) with known values over a well-defined set of neutronic conditions. Said another way, such correlations should be: (1) repeatable; (2) demonstrated with defined confidence; and (3) identify the range of neutronic conditions (area of applicability) for which the correlations are valid. The general approach to validation of computational methods at WSRC must encompass a large number of diverse types of fissile material processes in different operations. Special problems are presented in validating computational methods when very few experiments are available (such as for enriched uranium systems with principal second isotope {sup 236}U). To cover all process conditions at WSRC, a broad validation approach has been used. Broad validation is based upon calculation of many experiments to span all possible ranges of reflection, nuclide concentrations, moderation ratios, etc. Narrow validation, in comparison, relies on calculations of a few experiments very near anticipated worst-case process conditions. The methods and problems of broad validation are discussed.

  18. Validation of a scenario-based assessment of critical thinking using an externally validated tool.

    Science.gov (United States)

    Buur, Jennifer L; Schmidt, Peggy; Smylie, Dean; Irizarry, Kris; Crocker, Carlos; Tyler, John; Barr, Margaret

    2012-01-01

    With medical education transitioning from knowledge-based curricula to competency-based curricula, critical thinking skills have emerged as a major competency. While there are validated external instruments for assessing critical thinking, many educators have created their own custom assessments of critical thinking. However, the face validity of these assessments has not been challenged. The purpose of this study was to compare results from a custom assessment of critical thinking with the results from a validated external instrument of critical thinking. Students from the College of Veterinary Medicine at Western University of Health Sciences were administered a custom assessment of critical thinking (ACT) examination and the externally validated instrument, California Critical Thinking Skills Test (CCTST), in the spring of 2011. Total scores and sub-scores from each exam were analyzed for significant correlations using Pearson correlation coefficients. Significant correlations between ACT Blooms 2 and deductive reasoning and total ACT score and deductive reasoning were demonstrated with correlation coefficients of 0.24 and 0.22, respectively. No other statistically significant correlations were found. The lack of significant correlation between the two examinations illustrates the need in medical education to externally validate internal custom assessments. Ultimately, the development and validation of custom assessments of non-knowledge-based competencies will produce higher quality medical professionals.

  19. Validation of KENO V.a Comparison with Critical Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Jordan, W.C.

    1999-01-01

    Section 1 of this report documents the validation of KENO V.a against 258 critical experiments. Experiments considered were primarily high or low enriched uranium systems. The results indicate that the KENO V.a Monte Carlo Criticality Program accurately calculates a broad range of critical experiments. A substantial number of the calculations showed a positive or negative bias in excess of 1 1/2% in k-effective (k{sub eff}). Classes of criticals which show a bias include 3% enriched green blocks, highly enriched uranyl fluoride slab arrays, and highly enriched uranyl nitrate arrays. If these biases are properly taken into account, the KENO V.a code can be used with confidence for the design and criticality safety analysis of uranium-containing systems. Section 2 of this report documents the results of investigation into the cause of the bias observed in Sect. 1. The results of this study indicate that the bias seen in Sect. 1 is caused by code bias, cross-section bias, reporting bias, and modeling bias. There is evidence that many of the experiments used in this validation and in previous validations are not adequately documented. The uncertainty in the experimental parameters overshadows bias caused by the code and cross sections and prohibits code validation to better than about 1% in k{sub eff}.

  20. Formalization and Validation of Safety-Critical Requirements

    Directory of Open Access Journals (Sweden)

    Alessandro Cimatti

    2010-03-01

    Full Text Available The validation of requirements is a fundamental step in the development process of safety-critical systems. In safety critical applications such as aerospace, avionics and railways, the use of formal methods is of paramount importance both for requirements and for design validation. Nevertheless, while for the verification of the design, many formal techniques have been conceived and applied, the research on formal methods for requirements validation is not yet mature. The main obstacles are that, on the one hand, the correctness of requirements is not formally defined; on the other hand that the formalization and the validation of the requirements usually demands a strong involvement of domain experts. We report on a methodology and a series of techniques that we developed for the formalization and validation of high-level requirements for safety-critical applications. The main ingredients are a very expressive formal language and automatic satisfiability procedures. The language combines first-order, temporal, and hybrid logic. The satisfiability procedures are based on model checking and satisfiability modulo theory. We applied this technology within an industrial project to the validation of railways requirements.

  1. Construct Validity of Almutairi's Critical Cultural Competence Scale.

    Science.gov (United States)

    Almutairi, Adel F; Dahinten, V Susan

    2017-06-01

    Cultural diversity in health care settings can threaten the well-being of patients, their families, and health care providers. This psychometric study evaluated the construct validity of the recently developed four-factor, 43-item Critical Cultural Competence Scale (CCCS) which was designed to overcome the conceptual limitations of previously developed scales. The study was conducted in Canada with a random sample of 170 registered nurses. Comparisons with the Cultural Competence Assessment instrument, Scale of Ethnocultural Empathy, and Cultural Intelligence Scale provided mixed evidence of convergent validity. Modest correlations were found between the total scale scores suggesting that the CCCS is measuring a more comprehensive and conceptually distinct construct. Stronger correlations were found between the more conceptually similar subscales. Evidence for discriminant validity was also mixed. Results support use of the CCCS to measure health care providers' perceptions of their critical cultural competence though ongoing evaluation is warranted.

  2. Lecture Notes on Criticality Safety Validation Using MCNP & Whisper

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Forrest B. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Rising, Michael Evan [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Alwin, Jennifer Louise [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-03-11

    Training classes for nuclear criticality safety, MCNP documentation. The need for, and problems surrounding, validation of computer codes and data area considered first. Then some background for MCNP & Whisper is given--best practices for Monte Carlo criticality calculations, neutron spectra, S(α,β) thermal neutron scattering data, nuclear data sensitivities, covariance data, and correlation coefficients. Whisper is computational software designed to assist the nuclear criticality safety analyst with validation studies with the Monte Carlo radiation transport package MCNP. Whisper's methodology (benchmark selection – Ck's, weights; extreme value theory – bias, bias uncertainty; MOS for nuclear data uncertainty – GLLS) and usage are discussed.

  3. Validation of a clinical critical thinking skills test in nursing

    Directory of Open Access Journals (Sweden)

    Sujin Shin

    2015-01-01

    Full Text Available Purpose: The purpose of this study was to develop a revised version of the clinical critical thinking skills test (CCTS and to subsequently validate its performance. Methods: This study is a secondary analysis of the CCTS. Data were obtained from a convenience sample of 284 college students in June 2011. Thirty items were analyzed using item response theory and test reliability was assessed. Test-retest reliability was measured using the results of 20 nursing college and graduate school students in July 2013. The content validity of the revised items was analyzed by calculating the degree of agreement between instrument developer intention in item development and the judgments of six experts. To analyze response process validity, qualitative data related to the response processes of nine nursing college students obtained through cognitive interviews were analyzed. Results: Out of initial 30 items, 11 items were excluded after the analysis of difficulty and discrimination parameter. When the 19 items of the revised version of the CCTS were analyzed, levels of item difficulty were found to be relatively low and levels of discrimination were found to be appropriate or high. The degree of agreement between item developer intention and expert judgments equaled or exceeded 50%. Conclusion: From above results, evidence of the response process validity was demonstrated, indicating that subjects respondeds as intended by the test developer. The revised 19-item CCTS was found to have sufficient reliability and validity and will therefore represents a more convenient measurement of critical thinking ability.

  4. Validation of a clinical critical thinking skills test in nursing.

    Science.gov (United States)

    Shin, Sujin; Jung, Dukyoo; Kim, Sungeun

    2015-01-27

    The purpose of this study was to develop a revised version of the clinical critical thinking skills test (CCTS) and to subsequently validate its performance. This study is a secondary analysis of the CCTS. Data were obtained from a convenience sample of 284 college students in June 2011. Thirty items were analyzed using item response theory and test reliability was assessed. Test-retest reliability was measured using the results of 20 nursing college and graduate school students in July 2013. The content validity of the revised items was analyzed by calculating the degree of agreement between instrument developer intention in item development and the judgments of six experts. To analyze response process validity, qualitative data related to the response processes of nine nursing college students obtained through cognitive interviews were analyzed. Out of initial 30 items, 11 items were excluded after the analysis of difficulty and discrimination parameter. When the 19 items of the revised version of the CCTS were analyzed, levels of item difficulty were found to be relatively low and levels of discrimination were found to be appropriate or high. The degree of agreement between item developer intention and expert judgments equaled or exceeded 50%. From above results, evidence of the response process validity was demonstrated, indicating that subjects respondeds as intended by the test developer. The revised 19-item CCTS was found to have sufficient reliability and validity and will therefore represents a more convenient measurement of critical thinking ability.

  5. Mid-Pacific Ground-Truth Data For Validation of the CrIMSS Sensor Suite Aboard Suomi-NPP

    Science.gov (United States)

    Mollner, A. K.; Wessel, J.; Gaab, K. M.; Cardoza, D. M.; LaLumondiere, S. D.; Karuza, P.; Caponi, D.; Lotshaw, W. T.; Nalli, N. R.; Reale, T.; Divakarla, M.; Gambacorta, A.; Barnet, C.; Maddy, E. S.; Tan, C.; Xiong, X.; Porter, O.

    2013-12-01

    The Aerospace Transportable Lidar System 2 (ATLS-2) provides ground truth humidity and temperature data for the testing and evaluation of instruments aboard environmental satellites. The Aerospace ground-truth data consist of collocated state-of-the art lidar and radiosonde observations (RAOBs). The lidar system consists of a pulsed UV transmitter, 36-inch collection telescope, and detection channels for water Raman, nitrogen Raman, and Rayleigh/Mie scattering. All channels are separated into two altitude bins to improve the dynamic range of the system. Dedicated balloon-borne radiosondes are Vaisala RS-92, processed with the current version of the Digicora-III software. The synergy between the Raman lidar data and radiosonde data produce high accuracy, quality-controlled vertical profiles of humidity (0 - 20 km) and temperature (0 - 60 km). Starting in May 2012, The Aerospace Corporation has exercised ATLS-2 to collect dedicated ground truth data sets in support of calibration and validation (cal/val) efforts for the Cross-track Infrared and Microwave Sounding Suite (CrIMSS) aboard the Suomi-National Polar-orbiting Partnership (S-NPP) satellite. Data sets are collected from the Pacific Missile Range Facility (PMRF) on the west coast of Kauai and are timed to be coincident with S-NPP overpasses. The Aerospace PMRF datasets complement the ensemble of similar datasets collected from DOE Atmospheric Radiation Measurement (ARM) and NOAA Aerosols and Ocean Science Expedition (AEROSE) sites, which are compared to CrIMSS Environmental Data Records (EDRs) by the NOAA/NESDIS/STAR cal/val team for validation of algorithm performance and algorithm improvement. In addition to providing the only dedicated CrIMSS data in the mid-pacific, The Aerospace Corporation was the first site to provide ground truth data to the EDR cal/val team. As a result, ATLS-2 data sets served as the initial benchmarks for EDR performance testing. Details of the ATLS-2 system and data products as well

  6. Criticality Safety Validation of Scale 6.1

    Energy Technology Data Exchange (ETDEWEB)

    Marshall, William BJ J [ORNL; Rearden, Bradley T [ORNL

    2011-11-01

    The computational bias of criticality safety computer codes must be established through the validation of the codes to critical experiments. A large collection of suitable experiments has been vetted by the International Criticality Safety Benchmark Experiment Program (ICSBEP) and made available in the International Handbook of Evaluated Criticality Safety Benchmark Experiments (IHECSBE). A total of more than 350 cases from this reference have been prepared and reviewed within the Verified, Archived Library of Inputs and Data (VALID) maintained by the Reactor and Nuclear Systems Division at Oak Ridge National Laboratory. The performance of the KENO V.a and KENO-VI Monte Carlo codes within the Scale 6.1 code system with ENDF/B-VII.0 cross-section data in 238-group and continuous energy is assessed using the VALID models of benchmark experiments. The TSUNAMI tools for sensitivity and uncertainty analysis are utilized to examine some systems further in an attempt to identify potential causes of unexpected results. The critical experiments available for validation of the KENO V.a code cover eight different broad categories of systems. These systems use a range of fissile materials including a range of uranium enrichments, various plutonium isotopic vectors, and mixed uranium-plutonium oxides. The physical form of the fissile material also varies and is represented as metal, solutions, or arrays of rods or plates in a water moderator. The neutron energy spectra of the systems also vary and cover both fast and thermal spectra. Over 300 of the total cases used utilize the KENO V.a code. The critical experiments available for the validation of the KENO-VI code cover three broad categories of systems. The fissile materials in the systems vary and include high and intermediate-enrichment uranium and mixed uranium/plutonium oxides. The physical form of the fissile material is either metal or rod arrays in water. As with KENO V.a, both fast and thermal neutron energy spectra

  7. Sensitivity-Uncertainty Based Nuclear Criticality Safety Validation

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Forrest B. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States). Nuclear Engineering Dept.

    2016-09-20

    These are slides from a seminar given to the University of Mexico Nuclear Engineering Department. Whisper is a statistical analysis package developed to support nuclear criticality safety validation. It uses the sensitivity profile data for an application as computed by MCNP6 along with covariance files for the nuclear data to determine a baseline upper-subcritical-limit for the application. Whisper and its associated benchmark files are developed and maintained as part of MCNP6, and will be distributed with all future releases of MCNP6. Although sensitivity-uncertainty methods for NCS validation have been under development for 20 years, continuous-energy Monte Carlo codes such as MCNP could not determine the required adjoint-weighted tallies for sensitivity profiles. The recent introduction of the iterated fission probability method into MCNP led to the rapid development of sensitivity analysis capabilities for MCNP6 and the development of Whisper. Sensitivity-uncertainty based methods represent the future for NCS validation – making full use of today’s computer power to codify past approaches based largely on expert judgment. Validation results are defensible, auditable, and repeatable as needed with different assumptions and process models. The new methods can supplement, support, and extend traditional validation approaches.

  8. Critical Evaluation of Validation Rules Automated Extraction from Data

    Directory of Open Access Journals (Sweden)

    David Pejcoch

    2014-10-01

    Full Text Available The goal of this article is to critically evaluate a possibility of automatic extraction of such kind of rules which could be later used within a Data Quality Management process for validation of records newly incoming to Information System. For practical demonstration the 4FT-Miner procedure implemented in LISpMiner System was chosen. A motivation for this task is the potential simplification of projects focused on Data Quality Management. Initially, this article is going to critically evaluate a possibility of fully automated extraction with the aim to identify strengths and weaknesses of this approach in comparison to its alternative, when at least some a priori knowledge is available. As a result of practical implementation, this article provides design of recommended process which would be used as a guideline for future projects. Also the question of how to store and maintain extracted rules and how to integrate them with existing tools supporting Data Quality Management is discussed

  9. Addressing Fission Product Validation in MCNP Burnup Credit Criticality Calculations

    Energy Technology Data Exchange (ETDEWEB)

    Mueller, Don [ORNL; Bowen, Douglas G [ORNL; Marshall, William BJ J [ORNL

    2015-01-01

    The US Nuclear Regulatory Commission (NRC) Division of Spent Fuel Storage and Transportation issued Interim Staff Guidance (ISG) 8, Revision 3 in September 2012. This ISG provides guidance for NRC staff members’ review of burnup credit (BUC) analyses supporting transport and dry storage of pressurized water reactor spent nuclear fuel (SNF) in casks. The ISG includes guidance for addressing validation of criticality (keff) calculations crediting the presence of a limited set of fission products and minor actinides (FP&MAs). Based on previous work documented in NRC Regulatory Guide (NUREG) Contractor Report (CR)-7109, the ISG recommends that NRC staff members accept the use of either 1.5 or 3% of the FP&MA worth—in addition to bias and bias uncertainty resulting from validation of keff calculations for the major actinides in SNF—to conservatively account for the bias and bias uncertainty associated with the specified unvalidated FP&MAs. The ISG recommends (1) use of 1.5% of the FP&MA worth if a modern version of SCALE and its nuclear data are used and (2) 3% of the FP&MA worth for well qualified, industry standard code systems other than SCALE with the Evaluated Nuclear Data Files, Part B (ENDF/B),-V, ENDF/B-VI, or ENDF/B-VII cross sections libraries. The work presented in this paper provides a basis for extending the use of the 1.5% of the FP&MA worth bias to BUC criticality calculations performed using the Monte Carlo N-Particle (MCNP) code. The extended use of the 1.5% FP&MA worth bias is shown to be acceptable by comparison of FP&MA worths calculated using SCALE and MCNP with ENDF/B-V, -VI, and -VII–based nuclear data. The comparison supports use of the 1.5% FP&MA worth bias when the MCNP code is used for criticality calculations, provided that the cask design is similar to the hypothetical generic BUC-32 cask model and that the credited FP&MA worth is no more than 0.1 Δkeff (ISG-8, Rev. 3, Recommendation 4).

  10. Space suit

    Science.gov (United States)

    Shepard, L. F.; Durney, G. P.; Case, M. C.; Kenneway, A. J., III; Wise, R. C.; Rinehart, D.; Bessette, R. J.; Pulling, R. C. (Inventor)

    1973-01-01

    A pressure suit for high altitude flights, particularly space missions is reported. The suit is designed for astronauts in the Apollo space program and may be worn both inside and outside a space vehicle, as well as on the lunar surface. It comprises an integrated assembly of inner comfort liner, intermediate pressure garment, and outer thermal protective garment with removable helmet, and gloves. The pressure garment comprises an inner convoluted sealing bladder and outer fabric restraint to which are attached a plurality of cable restraint assemblies. It provides versitility in combination with improved sealing and increased mobility for internal pressures suitable for life support in the near vacuum of outer space.

  11. Verification and Validation of Flight Critical Systems Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Verification and Validation is a multi-disciplinary activity that encompasses elements of systems engineering, safety, software engineering and test. The elements...

  12. An Approach for Validating Actinide and Fission Product Burnup Credit Criticality Safety Analyses--Criticality (keff) Predictions

    Energy Technology Data Exchange (ETDEWEB)

    Scaglione, John M [ORNL; Mueller, Don [ORNL; Wagner, John C [ORNL

    2011-01-01

    One of the most significant remaining challenges associated with expanded implementation of burnup credit in the United States is the validation of depletion and criticality calculations used in the safety evaluation - in particular, the availability and use of applicable measured data to support validation, especially for fission products. Applicants and regulatory reviewers have been constrained by both a scarcity of data and a lack of clear technical basis or approach for use of the data. U.S. Nuclear Regulatory Commission (NRC) staff have noted that the rationale for restricting their Interim Staff Guidance on burnup credit (ISG-8) to actinide-only is based largely on the lack of clear, definitive experiments that can be used to estimate the bias and uncertainty for computational analyses associated with using burnup credit. To address the issue of validation, the NRC initiated a project with the Oak Ridge National Laboratory to (1) develop and establish a technically sound validation approach (both depletion and criticality) for commercial spent nuclear fuel (SNF) criticality safety evaluations based on best-available data and methods and (2) apply the approach for representative SNF storage and transport configurations/conditions to demonstrate its usage and applicability, as well as to provide reference bias results. The purpose of this paper is to describe the criticality (k{sub eff}) validation approach, and resulting observations and recommendations. Validation of the isotopic composition (depletion) calculations is addressed in a companion paper at this conference. For criticality validation, the approach is to utilize (1) available laboratory critical experiment (LCE) data from the International Handbook of Evaluated Criticality Safety Benchmark Experiments and the French Haut Taux de Combustion (HTC) program to support validation of the principal actinides and (2) calculated sensitivities, nuclear data uncertainties, and the limited available fission

  13. Validity of bond strength tests: A critical review: Part I

    Science.gov (United States)

    Sirisha, Kantheti; Rambabu, Tankonda; Shankar, Yalavarthi Ravi; Ravikumar, Pabbati

    2014-01-01

    Adhesive systems are selected based on their bond strengths achieved while testing in laboratories. These bond strengths can predict the longevity of a restoration to some extent. There were several discrepancies in the reported bond strengths. To critically review the reliability of macro-bond strength tests used to evaluate resin-tooth interface. Relevant literature published between January 1983 and May 2013 was collected from PubMed database, Google scholar, and hand-searched journals of Conservative Dentistry, Endodontics and Dental materials. Variables that influence the test outcome are categorized into substrate-related factors, factors related to specimen properties, preparation of specimens, and test methodology. Impact of these variables on the test outcome is critically analyzed. There is lack of a standard format for reporting the bond strength tests, which could lead to misinterpretation of the data and bonding abilities of adhesives. PMID:25125840

  14. Validation of a Method for Measuring Medical Students' Critical Reflections on Professionalism in Gross Anatomy

    Science.gov (United States)

    Wittich, Christopher M.; Pawlina, Wojciech; Drake, Richard L.; Szostek, Jason H.; Reed, Darcy A.; Lachman, Nirusha; McBride, Jennifer M.; Mandrekar, Jayawant N.; Beckman, Thomas J.

    2013-01-01

    Improving professional attitudes and behaviors requires critical self reflection. Research on reflection is necessary to understand professionalism among medical students. The aims of this prospective validation study at the Mayo Medical School and Cleveland Clinic Lerner College of Medicine were: (1) to develop and validate a new instrument for…

  15. The Assessment of Critical Thinking Critically Assessed in Higher Education: A Validation Study of the CCTT and the HCTA

    Directory of Open Access Journals (Sweden)

    An Verburgh

    2013-01-01

    Full Text Available Although critical thinking (CT is generally acknowledged as an important aim of higher education, no validated instrument to assess CT in Dutch is available. Moreover, most instruments are validated on a broad sample with people of diverse educational backgrounds. This possibly hampers the reliability of assessing effects of instructional interventions within educational programmes, where diversity is less. This study investigates the psychometric quality of a translation of the Cornell Critical Thinking Test (CCTT and the Halpern Critical Thinking Assessment (HCTA in a sample of Dutch speaking freshmen majoring in educational sciences. Results show a higher content validity and preference by students for the HCTA. The CCTT, however, takes less time to administer and score, which makes it easier to use the CCTT on a larger scale. Neither of the two tests shows a high overall reliability. The strength of the correlations between the constructed-response items and the forced-choice items of the HCTA with the CCTT calls for further research on the precise relation between CT skills and dispositions and the ability of the HCTA to assess both independently.

  16. Reliability and concurrent validity of a measure of critical thinking skills in biology

    Science.gov (United States)

    McMurray, Mary Anne; Beisenherz, Paul; Thompson, Bruce

    The present study investigated the utility of 52 items, selected from a readily available item pool developed for instructional purposes, when the items are used to measure critical thinking abilities of biology students. The items yield scores that have reasonable internal consistency reliability. Furthermore, analyses involving ACT, Watson-Glaser Critical Thinking Appraisal, and Group Embedded Figures Test scores also suggest that the critical thinking test items have good concurrent validity. Thus, the measure may be useful in both science instruction and future research regarding critical thinking phenomena.

  17. Guide to verification and validation of the SCALE-4 criticality safety software

    Energy Technology Data Exchange (ETDEWEB)

    Emmett, M.B.; Jordan, W.C.

    1996-12-01

    Whenever a decision is made to newly install the SCALE nuclear criticality safety software on a computer system, the user should run a set of verification and validation (V&V) test cases to demonstrate that the software is properly installed and functioning correctly. This report is intended to serve as a guide for this V&V in that it specifies test cases to run and gives expected results. The report describes the V&V that has been performed for the nuclear criticality safety software in a version of SCALE-4. The verification problems specified by the code developers have been run, and the results compare favorably with those in the SCALE 4.2 baseline. The results reported in this document are from the SCALE 4.2P version which was run on an IBM RS/6000 workstation. These results verify that the SCALE-4 nuclear criticality safety software has been correctly installed and is functioning properly. A validation has been performed for KENO V.a utilizing the CSAS25 criticality sequence and the SCALE 27-group cross-section library for {sup 233}U, {sup 235}U, and {sup 239}Pu fissile, systems in a broad range of geometries and fissile fuel forms. The experimental models used for the validation were taken from three previous validations of KENO V.a. A statistical analysis of the calculated results was used to determine the average calculational bias and a subcritical k{sub eff} criteria for each class of systems validated. Included the statistical analysis is a means of estimating the margin of subcriticality in k{sub eff}. This validation demonstrates that KENO V.a and the 27-group library may be used for nuclear criticality safety computations provided the system being analyzed falls within the range of the experiments used in the validation.

  18. Upgrade and validation of PHX2MCNP for criticality analysis calculations for spent fuel storage pools

    OpenAIRE

    Larsson, Cecilia

    2010-01-01

    A few years ago Westinghouse started the development of a new method for criticality calculations for spent nuclear fuel storage pools called “PHOENIX-to–MCNP” (PHX2MCNP). PHX2MCNP transfers burn-up data from the code PHOENIX to use in MCNP in order to calculate the criticality. This thesis describes a work with the purpose to further validate the new method first by validating the software MCNP5 at higher water temperatures than room temperature and, in a second step, continue the developmen...

  19. Validity, reliability and applicability of Portuguese versions of sedation-agitation scales among critically ill patients

    Directory of Open Access Journals (Sweden)

    Antonio Paulo Nassar Junior

    Full Text Available CONTEXT AND OBJECTIVE: Sedation scales are used to guide sedation protocols in intensive care units (ICUs. However, no sedation scale in Portuguese has ever been evaluated. The aim of this study was to evaluate the validity and reliability of Portuguese translations of four sedation-agitation scales, among critically ill patients: Glasgow Coma Score, Ramsay, Richmond Agitation-Sedation Scale (RASS and Sedation-Agitation Scale (SAS. DESIGN AND SETTING: Validation study in two mixed ICUs of a university hospital. METHODS: All scales were applied to 29 patients by four different critical care team members (nurse, physiotherapist, senior critical care physician and critical care resident. We tested each scale for interrater reliability and for validity, by correlations between them. Interrater agreement was measured using weighted kappa (k and correlations used Spearman's test. RESULTS: 136 observations were made on 29 patients. All scales had at least substantial agreement (weighted k 0.68-0.90. RASS (weighted k 0.82-0.87 and SAS (weighted k 0.83-0.90 had the best agreement. All scales had a good and significant correlation with each other. CONCLUSIONS: All scales demonstrated good interrater reliability and were comparable. RASS and SAS showed the best correlations and the best agreement results in all professional categories. All these characteristics make RASS and SAS good scales for use at the bedside, to evaluate sedation-agitation among critically ill patients in terms of validity, reliability and applicability.

  20. Nursing outcomes content validation according to Nursing Outcomes Classification (NOC) for clinical, surgical and critical patients.

    Science.gov (United States)

    Seganfredo, Deborah Hein; Almeida, Miriam de Abreu

    2011-01-01

    The objective of this study was to validate the Nursing Outcomes (NO) from the Nursing Outcomes Classification (NOC) for the two Nursing Diagnoses (ND) most frequent in hospitalized surgical, clinical and critical patients. The content validation of the REs was performed adapting the Fehring Model. The sample consisted of 12 expert nurses. The instrument for data collection consisted of the NOs proposed by NOC for the two NDs in the study, its definition and a five-point Likert scale. The data were analyzed using descriptive statistics. The NOs that obtained averages of 0.80 or higher were validated. The ND Risk for Infection was the most frequent, being validated eight (38.1%) of 21 NOs proposed by the NOC. The ND Self-Care Deficit: Bathing/Hygiene was the second most frequent and five (14.28%) out of 35 NOs were validated.

  1. Validation of the Dutch functional, communicative and critical health literacy scales

    NARCIS (Netherlands)

    van der Vaart, R.; Drossaert, Constance H.C.; Taal, Erik; ten Klooster, Peter M.; Hilderink-Koertshuis, Rianne T.E.; Klaase, Joost M.; van de Laar, Mart A F J

    2012-01-01

    Objective: While most existing health literacy (HL) measures focus primarily on reading comprehension, the functional, communicative and critical HL scales from Ishikawa et al. [19] aim to measure a broader HL spectrum. The objective of this study was to evaluate the validity of the Dutch

  2. The Predictive Validity of Critical Thinking Disposition on Middle-Grades Math Achievement

    Science.gov (United States)

    LaVenia, Mark; Pineau, Kristina N.; Lang, Laura B.

    2010-01-01

    This study investigates the predictive validity of students' levels of critical thinking disposition, as measured by the California Measure of Mental Motivation (CM3; Giancarlo, Blohm, & Urdan, 2004) for students' math achievement, as measured by the Mathematics assessment included in the Florida Comprehensive Assessment Test (FCAT). The CM3…

  3. Construct Validity Examination of Critical Thinking Dispositions for Undergraduate Students in University Putra Malaysia

    Science.gov (United States)

    Ghadi, Ibrahim; Alwi, Nor Hayati; Bakar, Kamariah Abu; Talib, Othman

    2012-01-01

    This research aims to evaluate the psychology properties of the construct validity for the Critical Thinking Disposition (CTD) instrument. The CTD instrument consists of 39 Likert-type items measuring seven dispositions, namely analyticity, open-mind, truth-seeking, systematicity, self-confidence inquisitiveness and maturity. The study involves…

  4. Social Validity of the Critical Incident Stress Management Model for School-Based Crisis Intervention

    Science.gov (United States)

    Morrison, Julie Q.

    2007-01-01

    The Critical Incident Stress Management (CISM) model for crisis intervention was developed for use with emergency service personnel. Research regarding the use of the CISM model has been conducted among civilians and high-risk occupation groups with mixed results. The purpose of this study is to examine the social validity of the CISM model for…

  5. Accumulation of Content Validation Evidence for the Critical Thinking Self-Assessment Scale.

    Science.gov (United States)

    Nair, Girija Gopinathan; Hellsten, Laurie-Ann M; Stamler, Lynnette Leeseberg

    2017-04-01

    Critical thinking skills (CTS) are essential for nurses; assessing students' acquisition of these skills is a mandate of nursing curricula. This study aimed to develop a self-assessment instrument of critical thinking skills (Critical Thinking Self-Assessment Scale [CTSAS]) for students' self-monitoring. An initial pool of 196 items across 6 core cognitive skills and 16 subskills were generated using the American Philosophical Association definition of CTS. Experts' content review of the items and their ratings provided evidence of content relevance using the item-level content validity index (I-CVI) and Aiken's content validity coefficient (VIk). 115 items were retained (range of I-CVI values = .70 to .94 and range of VIk values = .69-.95; significant at p< .05). The CTSAS is the first CTS instrument designed specifically for self-assessment purposes.

  6. Validity of the Richmond Agitation-Sedation Scale (RASS) in critically ill children.

    Science.gov (United States)

    Kerson, Abigail Glicksman; DeMaria, Rebecca; Mauer, Elizabeth; Joyce, Christine; Gerber, Linda M; Greenwald, Bruce M; Silver, Gabrielle; Traube, Chani

    2016-01-01

    The Richmond Agitation-Sedation Scale (RASS) is a single tool that is intuitive, is easy to use, and includes both agitation and sedation. The RASS has never been formally validated for pediatric populations. The objective of this study was to assess inter-rater agreement and criterion validity of the RASS in critically ill children. To evaluate validity, the RASS score was compared to both a visual analog scale (VAS) scored by the patient's nurse, and the University of Michigan Sedation Scale (UMSS), performed by a researcher. The nurse completed the VAS by drawing a single line on a 10-cm scale anchored by "unresponsive" and "combative." The UMSS was used to validate the sedation portion of the RASS only, as it does not include grades of agitation. For inter-rater agreement, one researcher and the patient's nurse simultaneously but independently scored the RASS. One hundred patient encounters were obtained from 50 unique patients, ages 2 months to 21 years. Of these, 27 assessments were on children who were mechanically ventilated and 73 were on children who were spontaneously breathing. In validity testing, the RASS was highly correlated with the nurse's VAS (Spearman correlation coefficient 0.810, p valid responsiveness tool for use in critically ill children. It allows for accurate assessment of awareness in mechanically ventilated and spontaneously breathing patients, and may improve our ability to titrate sedatives and assess for delirium in pediatrics.

  7. Monte Carlo calculations of the REBUS critical experiment for validation of burn-up credit

    Energy Technology Data Exchange (ETDEWEB)

    Hennebach, M.; Kuhl, H. [WTI GmbH, Julich (Germany)

    2008-07-01

    The REBUS experiment is a valuable benchmark for the validation of Monte Carlo criticality codes within the context of burn-up credit. It investigates the difference in reactivity worth of unirradiated fuel rods and of fuel rods irradiated in a PWR. This paper presents results of criticality calculations for this experiment with the Monte Carlo codes MCNP and SCALE/KENO. The results show that even the comparatively small reactivity loss of about 2000 pcm measured in this experiment can be calculated within an accuracy of 6 per cent. A detailed comparison of measured and calculated core characteristics (fission rate and flux distributions) shows good agreement, which indicates an adequately detailed model geometry for criticality calculations. The slight underestimation (500 pcm) of absolute k(eff) values is not out of the typical range for criticality benchmark experiments.

  8. The development and validation of a test of science critical thinking for fifth graders.

    Science.gov (United States)

    Mapeala, Ruslan; Siew, Nyet Moi

    2015-01-01

    The paper described the development and validation of the Test of Science Critical Thinking (TSCT) to measure the three critical thinking skill constructs: comparing and contrasting, sequencing, and identifying cause and effect. The initial TSCT consisted of 55 multiple choice test items, each of which required participants to select a correct response and a correct choice of critical thinking used for their response. Data were obtained from a purposive sampling of 30 fifth graders in a pilot study carried out in a primary school in Sabah, Malaysia. Students underwent the sessions of teaching and learning activities for 9 weeks using the Thinking Maps-aided Problem-Based Learning Module before they answered the TSCT test. Analyses were conducted to check on difficulty index (p) and discrimination index (d), internal consistency reliability, content validity, and face validity. Analysis of the test-retest reliability data was conducted separately for a group of fifth graders with similar ability. Findings of the pilot study showed that out of initial 55 administered items, only 30 items with relatively good difficulty index (p) ranged from 0.40 to 0.60 and with good discrimination index (d) ranged within 0.20-1.00 were selected. The Kuder-Richardson reliability value was found to be appropriate and relatively high with 0.70, 0.73 and 0.92 for identifying cause and effect, sequencing, and comparing and contrasting respectively. The content validity index obtained from three expert judgments equalled or exceeded 0.95. In addition, test-retest reliability showed good, statistically significant correlations ([Formula: see text]). From the above results, the selected 30-item TSCT was found to have sufficient reliability and validity and would therefore represent a useful tool for measuring critical thinking ability among fifth graders in primary science.

  9. Validity of contents of a paediatric critical comfort scale using mixed methodology.

    Science.gov (United States)

    Bosch-Alcaraz, A; Jordan-Garcia, I; Alcolea-Monge, S; Fernández-Lorenzo, R; Carrasquer-Feixa, E; Ferrer-Orona, M; Falcó-Pegueroles, A

    Critical illness in paediatric patients includes acute conditions in a healthy child as well as exacerbations of chronic disease, and therefore these situations must be clinically managed in Critical Care Units. The role of the paediatric nurse is to ensure the comfort of these critically ill patients. To that end, instruments are required that correctly assess critical comfort. To describe the process for validating the content of a paediatric critical comfort scale using mixed-method research. Initially, a cross-cultural adaptation of the Comfort Behavior Scale from English to Spanish using the translation and back-translation method was made. After that, its content was evaluated using mixed method research. This second step was divided into a quantitative stage in which an ad hoc questionnaire was used in order to assess each scale's item relevance and wording and a qualitative stage with two meetings with health professionals, patients and a family member following the Delphi Method recommendations. All scale items obtained a content validity index >0.80, except physical movement in its relevance, which obtained 0.76. Global content scale validity was 0.87 (high). During the qualitative stage, items from each of the scale domains were reformulated or eliminated in order to make the scale more comprehensible and applicable. The use of a mixed-method research methodology during the scale content validity phase allows the design of a richer and more assessment-sensitive instrument. Copyright © 2017 Sociedad Española de Enfermería Intensiva y Unidades Coronarias (SEEIUC). Publicado por Elsevier España, S.L.U. All rights reserved.

  10. Evaluation of Fission Product Critical Experiments and Associated Biases for Burnup Credit Validation

    Energy Technology Data Exchange (ETDEWEB)

    Mueller, Don [ORNL; Rearden, Bradley T [ORNL; Reed, Davis Allan [ORNL

    2010-01-01

    One of the challenges associated with implementation of burnup credit is the validation of criticality calculations used in the safety evaluation; in particular the availability and use of applicable critical experiment data. The purpose of the validation is to quantify the relationship between reality and calculated results. Validation and determination of bias and bias uncertainty require the identification of sets of critical experiments that are similar to the criticality safety models. A principal challenge for crediting fission products (FP) in a burnup credit safety evaluation is the limited availability of relevant FP critical experiments for bias and bias uncertainty determination. This paper provides an evaluation of the available critical experiments that include FPs, along with bounding, burnup-dependent estimates of FP biases generated by combining energy dependent sensitivity data for a typical burnup credit application with the nuclear data uncertainty information distributed with SCALE 6. A method for determining separate bias and bias uncertainty values for individual FPs and illustrative results is presented. Finally, a FP bias calculation method based on data adjustment techniques and reactivity sensitivity coefficients calculated with the SCALE sensitivity/uncertainty tools and some typical results is presented. Using the methods described in this paper, the cross-section bias for a representative high-capacity spent fuel cask associated with the ENDF/B-VII nuclear data for 16 most important stable or near stable FPs is predicted to be no greater than 2% of the total worth of the 16 FPs, or less than 0.13 % k/k.

  11. Validation of the Comfort scale for relatives of people in critical states of health

    OpenAIRE

    Freitas, Kátia Santana; Menezes, Igor Gomes; Mussi, Fernanda Carneiro

    2015-01-01

    AbstractObjective: this methodological study aims to present the construct validity of the Comfort scale for family members of people in a critical state of health (ECONF).Method:this is a methodological study. The sample was made up of 274 family members of adults receiving inpatient treatment in six Intensive Care Units (ICU) in the State of Bahía responded to 62 items distributed in 7 dimensions. The validation procedures adopted were based on the techniques of the Classical Test Theory.Re...

  12. Validation of the Children's Hospital Early Warning System for Critical Deterioration Recognition.

    Science.gov (United States)

    McLellan, Mary C; Gauvreau, Kimberlee; Connor, Jean Anne

    Early warning scores, such as the Children's Hospital Early Warning Score (CHEWS), are used by hospitals to identify patients at risk for critical deterioration and trigger clinicians to intervene and prevent further deterioration. This study's objectives were to validate the CHEWS and to compare the CHEWS to the previously validated Brighton Pediatric Early Warning Score (PEWS) for early detection of critical deterioration in hospitalized, non-cardiac patients at a pediatric hospital. A retrospective cohort study reviewed medical and surgical patients at a quaternary academic pediatric hospital. CHEWS scores and abstracted PEWS scores were obtained on cases (n=360) and a randomly selected comparison sample (n=776). Specificity, sensitivity, area under the receiver-operating characteristic curves (AUROC) and early warning times were calculated for both scoring tools. The AUROC for CHEWS was 0.902 compared to 0.798 for PEWS (pscores ≥3 was 91.4% for CHEWS and 73.6% for PEWS with specificity of 67.8% for CHEWS and 88.5% for PEWS. Sensitivity for scores ≥5 was 75.6% for CHEWS and 38.9% for PEWS with specificity of 88.5% for CHEWS and 93.9% for PEWS. The early warning time from critical score (≥5) to critical deterioration was 3.8h for CHEWS versus 0.6h for PEWS (pearly warning time than the PEWS for identifying children at risk for critical deterioration. Copyright © 2016 Elsevier Inc. All rights reserved.

  13. Analysis of fresh fuel critical experiments appropriate for burnup credit validation

    Energy Technology Data Exchange (ETDEWEB)

    DeHart, M.D.; Bowman, S.M.

    1995-10-01

    The ANS/ANS-8.1 standard requires that calculational methods used in determining criticality safety limits for applications outside reactors be validated by comparison with appropriate critical experiments. This report provides a detailed description of 34 fresh fuel critical experiments and their analyses using the SCALE-4.2 code system and the 27-group ENDF/B-IV cross-section library. The 34 critical experiments were selected based on geometry, material, and neutron interaction characteristics that are applicable to a transportation cask loaded with pressurized-water-reactor spent fuel. These 34 experiments are a representative subset of a much larger data base of low-enriched uranium and mixed-oxide critical experiments. A statistical approach is described and used to obtain an estimate of the bias and uncertainty in the calculational methods and to predict a confidence limit for a calculated neutron multiplication factor. The SCALE-4.2 results for a superset of approximately 100 criticals are included in uncertainty analyses, but descriptions of the individual criticals are not included.

  14. Validation of the Essentials of Magnetism II in Chinese critical care settings.

    Science.gov (United States)

    Bai, Jinbing; Hsu, Lily; Zhang, Qing

    2015-05-01

    To translate and evaluate the psychometric properties of the Essentials of Magnetism II tool (EOM II) for Chinese nurses in critical care settings. The EOM II is a reliable and valid scale for measuring the healthy work environment (HWE) for nurses in Western countries, however, it has not been validated among Chinese nurses. The translation of the EOM II followed internationally recognized guidelines. The Chinese version of the Essentials of Magnetism II tool (C-EOM II) was reviewed by an expert panel for culturally semantic equivalence and content validity. Then, 706 nurses from 28 intensive care units (ICUs) affiliated with 14 tertiary hospitals participated in this study. The reliability of the C-EOM II was assessed using the Cronbach's alpha coefficient; the content validity of this scale was assessed using the content validity index (CVI); and the construct validity was assessed using the confirmatory factor analysis (CFA). The C-EOM II showed excellent content validity with a CVI of 0·92. All the subscales of the C-EOM II were significantly correlated with overall nurse job satisfaction and nurse-assessed quality of care. The CFA showed that the C-EOM II was composed of 45 items with nine factors, accounting for 46·51% of the total variance. Cronbach's alpha coefficients for these factors ranged from 0·56 to 0·89. The C-EOM II is a promising scale to assess the HWE for Chinese ICU nurses. Nursing administrators and health care policy-makers can use the C-EOM II to evaluate clinical work environment so that a healthier work environment can be created and sustained for staff nurses. © 2013 British Association of Critical Care Nurses.

  15. Content Validation and Utility of a Critical Reflective Inquiry Assessment Tool.

    Science.gov (United States)

    Asselin, Marilyn E; Fain, James A

    2016-01-01

    A Critical Reflective Inquiry (CRI) Assessment Tool was developed based on the CRI Model to assess reflection in nursing practice. Experienced clinicians evaluated the CRI Assessment for clarity and relevance to the CRI Model and nursing practice utility. Content validity index was calculated for each item in the scale and then averaged across all items. The tool has potential in education and orientation for assessing the depth and focus of reflection and what is learned.

  16. Validation of neutron data for Pb and Bi using critical experiments

    Energy Technology Data Exchange (ETDEWEB)

    Tsiboulia, Anatoli; Khomyakov, Yuri; Koscheev, Vladimir; Kochetkov, Anatoli; Matveenko, Igor; Mikhailova, Irina; Semenov, Mikhail [State Scientific Center of the Russian Federation, Inst. for Physics and Power Engineering (IPPE), Obninsk (Russian Federation); Lopatkin, A.V.; Smirnov, V.S. [R and D and Designing Institute for Power Technology (NIKIET), Moscow (Russian Federation)

    2002-08-01

    A series of critical assemblies at the BFS (Obninsk fast assembly) facility was created for the validation of the neutron data for Pb and Bi in fast reactor spectrum. It is planned to continue the experiments in the nearest future. The analysis of the experiments has shown that the use of neutron data from files of various national libraries results in significant differences in the calculated values of basic neutronic characteristics. (author)

  17. Experimental methods to validate measures of emotional state and readiness for duty in critical operations.

    Energy Technology Data Exchange (ETDEWEB)

    Weston, Louise Marie

    2007-09-01

    A recent report on criticality accidents in nuclear facilities indicates that human error played a major role in a significant number of incidents with serious consequences and that some of these human errors may be related to the emotional state of the individual. A pre-shift test to detect a deleterious emotional state could reduce the occurrence of such errors in critical operations. The effectiveness of pre-shift testing is a challenge because of the need to gather predictive data in a relatively short test period and the potential occurrence of learning effects due to a requirement for frequent testing. This report reviews the different types of reliability and validity methods and testing and statistical analysis procedures to validate measures of emotional state. The ultimate value of a validation study depends upon the percentage of human errors in critical operations that are due to the emotional state of the individual. A review of the literature to identify the most promising predictors of emotional state for this application is highly recommended.

  18. Implementation, validation and review of a critical values list in a cardiac emergency room

    Directory of Open Access Journals (Sweden)

    Dilênia de Oliveira Cipriano Torres

    2014-10-01

    Full Text Available Introduction: Laboratory critical values (CV can indicate threatening conditions that require rapid clinical intervention. The aim of this study was to implement, validate and review a critical values list (CVL at Pronto-Socorro Cardiológico de Pernambuco - Universidade de Pernambuco (PROCAPE-UPE. Method: This study was conducted between 2011 and 2013. To formulate the CVL, laboratory tests performed at PROCAPE were analyzed and compared with those of the Journal of the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC and the College of American Pathologists (CAP. A draft CVL was validated by physicians; staff training and the standard operating procedure were developed covering the entire clinical analysis laboratory, in order to formalize the procedure of critical result reporting. The CVL was updated every six months. Results: Changes were made in CV intervals for the measurement of total serum calcium, serum sodium, serum potassium, the international normalized ratio (INR and total leukocyte count. Thyroid-stimulating hormone (TSH was also included in the CVL. In the pediatric CVL, dosages of serum sodium and INR were included, and a change in the value of serum potassium was made. Thus, periodic reviews of CVL allowed greater adequacy to the needs of the study population and avoided overloading the notification process. Conclusion: Clinical laboratories must be responsible for the implementation, validation and review of their CVL to ensure patients’ health.

  19. Proceedings of the workshop on integral experiment covariance data for critical safety validation

    Energy Technology Data Exchange (ETDEWEB)

    Stuke, Maik (ed.)

    2016-04-15

    For some time, attempts to quantify the statistical dependencies of critical experiments and to account for them properly in validation procedures were discussed in the literature by various groups. Besides the development of suitable methods especially the quality and modeling issues of the freely available experimental data are in the focus of current discussions, carried out for example in the Expert Group on Uncertainty Analysis for Criticality Safety Assessment (UACSA) of the OECD-NEA Nuclear Science Committee. The same committee compiles and publishes also the freely available experimental data in the International Handbook of Evaluated Criticality Safety Benchmark Experiments. Most of these experiments were performed as series and might share parts of experimental setups leading to correlated results. The quality of the determination of these correlations and the underlying covariance data depend strongly on the quality of the documentation of experiments.

  20. Validation of the Monte Carlo Criticality Program KENO V. a for highly-enriched uranium systems

    Energy Technology Data Exchange (ETDEWEB)

    Knight, J.R.

    1984-11-01

    A series of calculations based on critical experiments have been performed using the KENO V.a Monte Carlo Criticality Program for the purpose of validating KENO V.a for use in evaluating Y-12 Plant criticality problems. The experiments were reflected and unreflected systems of single units and arrays containing highly enriched uranium metal or uranium compounds. Various geometrical shapes were used in the experiments. The SCALE control module CSAS25 with the 27-group ENDF/B-4 cross-section library was used to perform the calculations. Some of the experiments were also calculated using the 16-group Hansen-Roach Library. Results are presented in a series of tables and discussed. Results show that the criteria established for the safe application of the KENO IV program may also be used for KENO V.a results.

  1. EMU Suit Performance Simulation

    Science.gov (United States)

    Cowley, Matthew S.; Benson, Elizabeth; Harvill, Lauren; Rajulu, Sudhakar

    2014-01-01

    Introduction: Designing a planetary suit is very complex and often requires difficult trade-offs between performance, cost, mass, and system complexity. To verify that new suit designs meet requirements, full prototypes must be built and tested with human subjects. However, numerous design iterations will occur before the hardware meets those requirements. Traditional draw-prototype-test paradigms for research and development are prohibitively expensive with today's shrinking Government budgets. Personnel at NASA are developing modern simulation techniques that focus on a human-centric design paradigm. These new techniques make use of virtual prototype simulations and fully adjustable physical prototypes of suit hardware. This is extremely advantageous and enables comprehensive design down-selections to be made early in the design process. Objectives: The primary objective was to test modern simulation techniques for evaluating the human performance component of two EMU suit concepts, pivoted and planar style hard upper torso (HUT). Methods: This project simulated variations in EVA suit shoulder joint design and subject anthropometry and then measured the differences in shoulder mobility caused by the modifications. These estimations were compared to human-in-the-loop test data gathered during past suited testing using four subjects (two large males, two small females). Results: Results demonstrated that EVA suit modeling and simulation are feasible design tools for evaluating and optimizing suit design based on simulated performance. The suit simulation model was found to be advantageous in its ability to visually represent complex motions and volumetric reach zones in three dimensions, giving designers a faster and deeper comprehension of suit component performance vs. human performance. Suit models were able to discern differing movement capabilities between EMU HUT configurations, generic suit fit concerns, and specific suit fit concerns for crewmembers based

  2. Validation of the Dutch functional, communicative and critical health literacy scales.

    Science.gov (United States)

    van der Vaart, Rosalie; Drossaert, Constance H C; Taal, Erik; ten Klooster, Peter M; Hilderink-Koertshuis, Rianne T E; Klaase, Joost M; van de Laar, Mart A F J

    2012-10-01

    While most existing health literacy (HL) measures focus primarily on reading comprehension, the functional, communicative and critical HL scales from Ishikawa et al. [19] aim to measure a broader HL spectrum. The objective of this study was to evaluate the validity of the Dutch translation of this instrument. Two survey studies (n = 79 and n = 209) and one cognitive interview study (n = 18) were performed among samples of breast cancer patients and patients with rheumatic diseases. Analyses showed the scales measured three distinct factors and convergent validity was satisfactory for communicative and critical HL. Nevertheless, the comprehension of the items and the suitability of the response options raised some problems. The HL scales seem promising to measure a broad definition of HL. By revising some of the items and response options as proposed in this article, the scale will become more understandable for people with low HL skills, which might increase the content validity and the distributional properties of the scale. The scale should be revised and revalidated. An improved version should be used in practice to gain insight into HL levels of patients. This will help to develop suitable education programs for people with low HL skills. Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

  3. Instant Spring Tool Suite

    CERN Document Server

    Chiang, Geoff

    2013-01-01

    Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. A tutorial guide that walks you through how to use the features of Spring Tool Suite using well defined sections for the different parts of Spring.Instant Spring Tool Suite is for novice to intermediate Java developers looking to get a head-start in enterprise application development using Spring Tool Suite and the Spring framework. If you are looking for a guide for effective application development using Spring Tool Suite, then this book is for you.

  4. Generation of integral experiment covariance data and their impact on criticality safety validation

    Energy Technology Data Exchange (ETDEWEB)

    Stuke, Maik; Peters, Elisabeth; Sommer, Fabian

    2016-11-15

    The quantification of statistical dependencies in data of critical experiments and how to account for them properly in validation procedures has been discussed in the literature by various groups. However, these subjects are still an active topic in the Expert Group on Uncertainty Analysis for Criticality Safety Assessment (UACSA) of the OECDNEA Nuclear Science Committee. The latter compiles and publishes the freely available experimental data collection, the International Handbook of Evaluated Criticality Safety Benchmark Experiments, ICSBEP. Most of the experiments were performed as series and share parts of experimental setups, consequently leading to correlation effects in the results. The correct consideration of correlated data seems to be inevitable if the experimental data in a validation procedure is limited or one cannot rely on a sufficient number of uncorrelated data sets, e.g. from different laboratories using different setups. The general determination of correlations and the underlying covariance data as well as the consideration of them in a validation procedure is the focus of the following work. We discuss and demonstrate possible effects on calculated k{sub eff}'s, their uncertainties, and the corresponding covariance matrices due to interpretation of evaluated experimental data and its translation into calculation models. The work shows effects of various modeling approaches, varying distribution functions of parameters and compares and discusses results from the applied Monte-Carlo sampling method with available data on correlations. Our findings indicate that for the reliable determination of integral experimental covariance matrices or the correlation coefficients a detailed study of the underlying experimental data, the modeling approach and assumptions made, and the resulting sensitivity analysis seems to be inevitable. Further, a Bayesian method is discussed to include integral experimental covariance data when estimating an

  5. Validation of an e-Learning 3.0 Critical Success Factors Framework: A Qualitative Research

    OpenAIRE

    Paula Miranda; Pedro Isaias; Carlos J Costa; Sara Pifano

    2017-01-01

    Aim/Purpose: As e-Learning 3.0 evolves from a theoretical construct into an actual solution for online learning, it becomes crucial to accompany this progress by scrutinising the elements that are at the origin of its success. Background: This paper outlines a framework of e-Learning 3.0’s critical success factors and its empirical validation. Methodology: The framework is the result of an extensive literature review and its empirical substantiation derives from semi-structured inte...

  6. A critical evaluation of the validity of episodic future thinking: A clinical neuropsychology perspective.

    Science.gov (United States)

    Ward, Amanda M

    2016-11-01

    Episodic future thinking is defined as the ability to mentally simulate a future event. Although episodic future thinking has been studied extensively in neuroscience, this construct has not been explored in depth from the perspective of clinical neuropsychology. The aim of this critical narrative review is to assess the validity and clinical implications of episodic future thinking. A systematic review of episodic future thinking literature was conducted. PubMed and PsycInfo were searched through July 2015 for review and empirical articles with the following search terms: "episodic future thinking," "future mental simulation," "imagining the future," "imagining new experiences," "future mental time travel," "future autobiographical experience," and "prospection." The review discusses evidence that episodic future thinking is important for adaptive functioning, which has implications for neurological populations. To determine the validity of episodic future thinking, the construct is evaluated with respect to related constructs, such as imagination, episodic memory, autobiographical memory, prospective memory, narrative construction, and working memory. Although it has been minimally investigated, there is evidence of convergent and discriminant validity for episodic future thinking. Research has not addressed the incremental validity of episodic future thinking. Practical considerations of episodic future thinking tasks and related constructs in a clinical neuropsychological setting are considered. The utility of episodic future thinking is currently unknown due to the lack of research investigating the validity of episodic future thinking. Future work is discussed, which could determine whether episodic future thinking is an important missing piece in standard clinical neuropsychological assessment. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  7. Validation Study of Energy Requirements in Critically Ill, Obese Cancer Patients.

    Science.gov (United States)

    Tajchman, Sharla K; Tucker, Anne M; Cardenas-Turanzas, Marylou; Nates, Joseph L

    2016-08-01

    Current guidelines from the American Society for Parenteral and Enteral Nutrition and the Society of Critical Care Medicine (ASPEN/SCCM) regarding caloric requirements and the provision of nutrition support in critically ill, obese adults may not be suitable for similar patients with cancer. We sought to determine whether the current guidelines accurately estimate the energy requirements, as measured by indirect calorimetry (IC), of critically ill, obese cancer patients. This was a retrospective validation study of critically ill, obese cancer patients from March 1, 2007, to July 31, 2010. All patients ≥18 years of age with a body mass index (BMI) ≥30 kg/m(2) who underwent IC were included. We compared the measured energy expenditure (MEE) against the upper limit of the recommended guideline (25 kcal/kg of ideal body weight [IBW]) and MEE between medical and surgical patients in the intensive care unit. Thirty-three patients were included in this study. Mean MEE (28.7 ± 5.2 kcal/kg IBW) was significantly higher than 25 kcal/kg IBW (P nutrition requirements greater than the current guideline recommendations. No significant differences in MEE between medical and surgical patients in the ICU were observed. Critically ill, obese cancer patients require more calories than the current guidelines recommend, likely due to malignancy-associated metabolic variations. Our results demonstrate the need for IC studies to determine the energy requirements in these patients and for reassessment of the current recommendations. © 2015 American Society for Parenteral and Enteral Nutrition.

  8. Development and validation of a seizure prediction model in critically ill children.

    Science.gov (United States)

    Yang, Amy; Arndt, Daniel H; Berg, Robert A; Carpenter, Jessica L; Chapman, Kevin E; Dlugos, Dennis J; Gallentine, William B; Giza, Christopher C; Goldstein, Joshua L; Hahn, Cecil D; Lerner, Jason T; Loddenkemper, Tobias; Matsumoto, Joyce H; Nash, Kendall B; Payne, Eric T; Sánchez Fernández, Iván; Shults, Justine; Topjian, Alexis A; Williams, Korwyn; Wusthoff, Courtney J; Abend, Nicholas S

    2015-02-01

    Electrographic seizures are common in encephalopathic critically ill children, but identification requires continuous EEG monitoring (CEEG). Development of a seizure prediction model would enable more efficient use of limited CEEG resources. We aimed to develop and validate a seizure prediction model for use among encephalopathic critically ill children. We developed a seizure prediction model using a retrospectively acquired multi-center database of children with acute encephalopathy without an epilepsy diagnosis, who underwent clinically indicated CEEG. We performed model validation using a separate prospectively acquired single center database. Predictor variables were chosen to be readily available to clinicians prior to the onset of CEEG and included: age, etiology category, clinical seizures prior to CEEG, initial EEG background category, and inter-ictal discharge category. The model has fair to good discrimination ability and overall performance. At the optimal cut-off point in the validation dataset, the model has a sensitivity of 59% and a specificity of 81%. Varied cut-off points could be chosen to optimize sensitivity or specificity depending on available CEEG resources. Despite inherent variability between centers, a model developed using multi-center CEEG data and few readily available variables could guide the use of limited CEEG resources when applied at a single center. Depending on CEEG resources, centers could choose lower cut-off points to maximize identification of all patients with seizures (but with more patients monitored) or higher cut-off points to reduce resource utilization by reducing monitoring of lower risk patients (but with failure to identify some patients with seizures). Copyright © 2014 British Epilepsy Association. Published by Elsevier Ltd. All rights reserved.

  9. Design and validation of a questionnaire to evaluate the usability of computerized critical care information systems.

    Science.gov (United States)

    von Dincklage, Falk; Lichtner, Gregor; Suchodolski, Klaudiusz; Ragaller, Maximilian; Friesdorf, Wolfgang; Podtschaske, Beatrice

    2017-08-01

    The implementation of computerized critical care information systems (CCIS) can improve the quality of clinical care and staff satisfaction, but also holds risks of disrupting the workflow with consecutive negative impacts. The usability of CCIS is one of the key factors determining their benefits and weaknesses. However, no tailored instrument exists to measure the usability of such systems. Therefore, the aim of this study was to design and validate a questionnaire that measures the usability of CCIS. Following a mixed-method design approach, we developed a questionnaire comprising two evaluation models to assess the usability of CCIS: (1) the task-specific model rates the usability individually for several tasks which CCIS could support and which we derived by analyzing work processes in the ICU; (2) the characteristic-specific model rates the different aspects of the usability, as defined by the international standard "ergonomics of human-system interaction". We tested validity and reliability of the digital version of the questionnaire in a sample population. In the sample population of 535 participants both usability evaluation models showed a strong correlation with the overall rating of the system (multiple correlation coefficients ≥0.80) as well as a very high internal consistency (Cronbach's alpha ≥0.93). The novel questionnaire is a valid and reliable instrument to measure the usability of CCIS and can be used to study the influence of the usability on their implementation benefits and weaknesses.

  10. Validity Evidence for a Serious Game to Assess Performance on Critical Pediatric Emergency Medicine Scenarios.

    Science.gov (United States)

    Gerard, James M; Scalzo, Anthony J; Borgman, Matthew A; Watson, Christopher M; Byrnes, Chelsie E; Chang, Todd P; Auerbach, Marc; Kessler, David O; Feldman, Brian L; Payne, Brian S; Nibras, Sohail; Chokshi, Riti K; Lopreiato, Joseph O

    2018-01-26

    We developed a first-person serious game, PediatricSim, to teach and assess performances on seven critical pediatric scenarios (anaphylaxis, bronchiolitis, diabetic ketoacidosis, respiratory failure, seizure, septic shock, and supraventricular tachycardia). In the game, players are placed in the role of a code leader and direct patient management by selecting from various assessment and treatment options. The objective of this study was to obtain supportive validity evidence for the PediatricSim game scores. Game content was developed by 11 subject matter experts and followed the American Heart Association's 2011 Pediatric Advanced Life Support Provider Manual and other authoritative references. Sixty subjects with three different levels of experience were enrolled to play the game. Before game play, subjects completed a 40-item written pretest of knowledge. Game scores were compared between subject groups using scoring rubrics developed for the scenarios. Validity evidence was established and interpreted according to Messick's framework. Content validity was supported by a game development process that involved expert experience, focused literature review, and pilot testing. Subjects rated the game favorably for engagement, realism, and educational value. Interrater agreement on game scoring was excellent (intraclass correlation coefficient = 0.91, 95% confidence interval = 0.89-0.9). Game scores were higher for attendings followed by residents then medical students (Pc game and written test scores (r = 0.84, P game scores to assess knowledge of pediatric emergency medicine resuscitation.

  11. A physiological Intensive Control Insulin-Nutrition-Glucose (ICING) model validated in critically ill patients.

    Science.gov (United States)

    Lin, Jessica; Razak, Normy N; Pretty, Christopher G; Le Compte, Aaron; Docherty, Paul; Parente, Jacquelyn D; Shaw, Geoffrey M; Hann, Christopher E; Geoffrey Chase, J

    2011-05-01

    Intensive insulin therapy (IIT) and tight glycaemic control (TGC), particularly in intensive care unit (ICU), are the subjects of increasing and controversial debate in recent years. Model-based TGC has shown potential in delivering safe and tight glycaemic management, all the while limiting hypoglycaemia. A comprehensive, more physiologically relevant Intensive Control Insulin-Nutrition-Glucose (ICING) model is presented and validated using data from critically ill patients. Two existing glucose-insulin models are reviewed and formed the basis for the ICING model. Model limitations are discussed with respect to relevant physiology, pharmacodynamics and TGC practicality. Model identifiability issues are carefully considered for clinical settings. This article also contains significant reference to relevant physiology and clinical literature, as well as some references to the modeling efforts in this field. Identification of critical constant population parameters was performed in two stages, thus addressing model identifiability issues. Model predictive performance is the primary factor for optimizing population parameter values. The use of population values are necessary due to the limited clinical data available at the bedside in the clinical control scenario. Insulin sensitivity, S(I), the only dynamic, time-varying parameter, is identified hourly for each individual. All population parameters are justified physiologically and with respect to values reported in the clinical literature. A parameter sensitivity study confirms the validity of limiting time-varying parameters to S(I) only, as well as the choices for the population parameters. The ICING model achieves median fitting error of ICING model is suitable for developing model-based insulin therapies, and capable of delivering real-time model-based TGC with a very tight prediction error range. Finally, the detailed examination and discussion of issues surrounding model-based TGC and existing glucose

  12. Assessment and validation of a suite of reverse transcription-quantitative PCR reference genes for analyses of density-dependent behavioural plasticity in the Australian plague locust.

    Science.gov (United States)

    Chapuis, Marie-Pierre; Tohidi-Esfahani, Donya; Dodgson, Tim; Blondin, Laurence; Ponton, Fleur; Cullen, Darron; Simpson, Stephen J; Sword, Gregory A

    2011-02-16

    The Australian plague locust, Chortoicetes terminifera, is among the most promising species to unravel the suites of genes underling the density-dependent shift from shy and cryptic solitarious behaviour to the highly active and aggregating gregarious behaviour that is characteristic of locusts. This is because it lacks many of the major phenotypic changes in colour and morphology that accompany phase change in other locust species. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) is the most sensitive method available for determining changes in gene expression. However, to accurately monitor the expression of target genes, it is essential to select an appropriate normalization strategy to control for non-specific variation between samples. Here we identify eight potential reference genes and examine their expression stability at different rearing density treatments in neural tissue of the Australian plague locust. Taking advantage of the new orthologous DNA sequences available in locusts, we developed primers for genes encoding 18SrRNA, ribosomal protein L32 (RpL32), armadillo (Arm), actin 5C (Actin), succinate dehydrogenase (SDHa), glyceraldehyde-3P-dehydrogenase (GAPDH), elongation factor 1 alpha (EF1a) and annexin IX (AnnIX). The relative transcription levels of these eight genes were then analyzed in three treatment groups differing in rearing density (isolated, short- and long-term crowded), each made up of five pools of four neural tissue samples from 5th instar nymphs. SDHa and GAPDH, which are both involved in metabolic pathways, were identified as the least stable in expression levels, challenging their usefulness in normalization. Based on calculations performed with the geNorm and NormFinder programs, the best combination of two genes for normalization of gene expression data following crowding in the Australian plague locust was EF1a and Arm. We applied their use to studying a target gene that encodes a Ca2+ binding glycoprotein

  13. Assessment and validation of a suite of reverse transcription-quantitative PCR reference genes for analyses of density-dependent behavioural plasticity in the Australian plague locust

    Directory of Open Access Journals (Sweden)

    Blondin Laurence

    2011-02-01

    Full Text Available Abstract Background The Australian plague locust, Chortoicetes terminifera, is among the most promising species to unravel the suites of genes underling the density-dependent shift from shy and cryptic solitarious behaviour to the highly active and aggregating gregarious behaviour that is characteristic of locusts. This is because it lacks many of the major phenotypic changes in colour and morphology that accompany phase change in other locust species. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR is the most sensitive method available for determining changes in gene expression. However, to accurately monitor the expression of target genes, it is essential to select an appropriate normalization strategy to control for non-specific variation between samples. Here we identify eight potential reference genes and examine their expression stability at different rearing density treatments in neural tissue of the Australian plague locust. Results Taking advantage of the new orthologous DNA sequences available in locusts, we developed primers for genes encoding 18SrRNA, ribosomal protein L32 (RpL32, armadillo (Arm, actin 5C (Actin, succinate dehydrogenase (SDHa, glyceraldehyde-3P-dehydrogenase (GAPDH, elongation factor 1 alpha (EF1a and annexin IX (AnnIX. The relative transcription levels of these eight genes were then analyzed in three treatment groups differing in rearing density (isolated, short- and long-term crowded, each made up of five pools of four neural tissue samples from 5th instar nymphs. SDHa and GAPDH, which are both involved in metabolic pathways, were identified as the least stable in expression levels, challenging their usefulness in normalization. Based on calculations performed with the geNorm and NormFinder programs, the best combination of two genes for normalization of gene expression data following crowding in the Australian plague locust was EF1a and Arm. We applied their use to studying a target gene

  14. Workflow for Criticality Assessment Applied in Biopharmaceutical Process Validation Stage 1

    Directory of Open Access Journals (Sweden)

    Thomas Zahel

    2017-10-01

    Full Text Available Identification of critical process parameters that impact product quality is a central task during regulatory requested process validation. Commonly, this is done via design of experiments and identification of parameters significantly impacting product quality (rejection of the null hypothesis that the effect equals 0. However, parameters which show a large uncertainty and might result in an undesirable product quality limit critical to the product, may be missed. This might occur during the evaluation of experiments since residual/un-modelled variance in the experiments is larger than expected a priori. Estimation of such a risk is the task of the presented novel retrospective power analysis permutation test. This is evaluated using a data set for two unit operations established during characterization of a biopharmaceutical process in industry. The results show that, for one unit operation, the observed variance in the experiments is much larger than expected a priori, resulting in low power levels for all non-significant parameters. Moreover, we present a workflow of how to mitigate the risk associated with overlooked parameter effects. This enables a statistically sound identification of critical process parameters. The developed workflow will substantially support industry in delivering constant product quality, reduce process variance and increase patient safety.

  15. EDL Sensor Suite Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Optical Air Data Systems (OADS) L.L.C. proposes a LIDAR based remote measurement sensor suite capable of satisfying a significant number of the desired sensing...

  16. Validation of nuclear criticality safety software and 27 energy group ENDF/B-IV cross sections. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    Lee, B.L. Jr. [Battelle, Columbus, OH (United States); D`Aquila, D.M. [Lockheed Martin Utility Services, Inc., Oak Ridge, TN (United States)

    1996-01-01

    The original validation report, POEF-T-3636, was documented in August 1994. The document was based on calculations that were executed during June through August 1992. The statistical analyses in Appendix C and Appendix D were completed in October 1993. This revision is written to clarify the margin of safety being used at Portsmouth for nuclear criticality safety calculations. This validation gives Portsmouth NCS personnel a basis for performing computerized KENO V.a calculations using the Lockheed Martin Nuclear Criticality Safety Software. The first portion of the document outlines basic information in regard to validation of NCSS using ENDF/B-IV 27-group cross sections on the IBM3090 at ORNL. A basic discussion of the NCSS system is provided, some discussion on the validation database and validation in general. Then follows a detailed description of the statistical analysis which was applied. The results of this validation indicate that the NCSS software may be used with confidence for criticality calculations at the Portsmouth Gaseous Diffusion Plant. For calculations of Portsmouth systems using the specified codes and systems covered by this validation, a maximum k{sub eff} including 2{sigma} of 0.9605 or lower shall be considered as subcritical to ensure a calculational margin of safety of 0.02. The validation of NCSS on the IBM 3090 at ORNL was extended to include NCSS on the IBM 3090 at K-25.

  17. A Critical Analysis and Validation of the Accuracy of Wave Overtopping Prediction Formulae for OWECs

    Directory of Open Access Journals (Sweden)

    David Gallach-Sánchez

    2018-01-01

    Full Text Available The development of wave energy devices is growing in recent years. One type of device is the overtopping wave energy converter (OWEC, for which the knowledge of the wave overtopping rates is a basic and crucial aspect in their design. In particular, the most interesting range to study is for OWECs with steep slopes to vertical walls, and with very small freeboards and zero freeboards where the overtopping rate is maximized, and which can be generalized as steep low-crested structures. Recently, wave overtopping prediction formulae have been published for this type of structures, although their accuracy has not been fully assessed, as the overtopping data available in this range is scarce. We performed a critical analysis of the overtopping prediction formulae for steep low-crested structures and the validation of the accuracy of these formulae, based on new overtopping data for steep low-crested structures obtained at Ghent University. This paper summarizes the existing knowledge about average wave overtopping, describes the physical model tests performed, analyses the results and compares them to existing prediction formulae. The new dataset extends the wave overtopping data towards vertical walls and zero freeboard structures. In general, the new dataset validated the more recent overtopping formulae focused on steep slopes with small freeboards, although the formulae are underpredicting the average overtopping rates for very small and zero relative crest freeboards.

  18. MODSARE-V: Validation of Dependability and Safety Critical Software Components with Model Based Requirements

    Science.gov (United States)

    Silveira, Daniel T. de M. M.; Schoofs, Tobias; Alana Salazar, Elena; Rodriguez Rodriguez, Ana Isabel; Devic, Marie-Odile

    2010-08-01

    The wide use of RAMS methods and techniques [1] (e.g. SFMECA, SFTA, HAZOP, HA...) in critical software development resulted in the specification of new software requirements, design constraints and other issues such as mandatory coding rules. Given the large variety of RAMS Requirements and Techniques, different types of Verification and Validation (V&V) [14] are spread over the phases of the software engineering process. As a result, the V&V process becomes complex and the cost and time required for a complete and consistent V&V process is increased. By introducing the concept of a model based approach to facilitate the RAMS requirements definition process, the V&V may be reduce in time and effort. MODSARE-V is demonstrates the feasibility of this concept based on case studies applied to ground or on-board software space projects with critical functions/components. This paper describes the approach adopted at MODSARE-V to realize the concept into a prototype and summarizes the results and conclusions met after the prototype application on the case studies.

  19. Validation and Verification of Future Integrated Safety-Critical Systems Operating under Off-Nominal Conditions

    Science.gov (United States)

    Belcastro, Christine M.

    2010-01-01

    Loss of control remains one of the largest contributors to aircraft fatal accidents worldwide. Aircraft loss-of-control accidents are highly complex in that they can result from numerous causal and contributing factors acting alone or (more often) in combination. Hence, there is no single intervention strategy to prevent these accidents and reducing them will require a holistic integrated intervention capability. Future onboard integrated system technologies developed for preventing loss of vehicle control accidents must be able to assure safe operation under the associated off-nominal conditions. The transition of these technologies into the commercial fleet will require their extensive validation and verification (V and V) and ultimate certification. The V and V of complex integrated systems poses major nontrivial technical challenges particularly for safety-critical operation under highly off-nominal conditions associated with aircraft loss-of-control events. This paper summarizes the V and V problem and presents a proposed process that could be applied to complex integrated safety-critical systems developed for preventing aircraft loss-of-control accidents. A summary of recent research accomplishments in this effort is also provided.

  20. Validity of critical frequency test for measuring table tennis aerobic endurance through specific protocol.

    Science.gov (United States)

    Zagatto, Alessandro M; Papoti, Marcelo; Gobatto, Claudio A

    2008-01-01

    The aim of this study was to validate critical frequency specific test (critf) for the estimation of the aerobic endurance in table tennis players. Eight male international-level table tennis players participated of this study. Specific tests were applied by using a mechanical ball thrower to control the intensity of the exercise. The critf was determined by applying three or four series of exercises to exhaustion (Tlim). The critf was evaluated by using lactate steady state test (90, 100, and 106 % of critf intensity). The other specific test was an incremental protocol used to determine the anaerobic threshold (AnTBI) and the onset of blood lactate accumulation (OBLA) using a ball thrower. The critf (39.87 ± 3.31 balls·min(-1)) was not significantly different among AnTBI (48.11 ± 7.36 balls·min(- 1)) and OBLA3.5 (49.36 ± 12.04 balls·min(-1)) frequencies and it was correlated with AnTBI parameter (r = 0.78). At frequencies of the 90 and 100% of critf a dynamic equilibrium was verified in lactate concentration between the eighth and twentieth minutes. However, this dynamic equilibrium was not found at 106% intensity. The data indicate that in table tennis the critf model can be used for measuring the aerobic endurance. Key pointsIn table tennis is need the use of a specific protocol for evaluation of the aerobic endurance.The critical frequency test in table tennis seems to represent the intensity of maximal equilibrium of lactatemia.The critical frequency test can be used for measuring table tennis aerobic endurance through specific protocol.

  1. Validity of Treadmill-Derived Critical Speed on Predicting 5000-Meter Track-Running Performance.

    Science.gov (United States)

    Nimmerichter, Alfred; Novak, Nina; Triska, Christoph; Prinz, Bernhard; Breese, Brynmor C

    2017-03-01

    Nimmerichter, A, Novak, N, Triska, C, Prinz, B, and Breese, BC. Validity of treadmill-derived critical speed on predicting 5,000-meter track-running performance. J Strength Cond Res 31(3): 706-714, 2017-To evaluate 3 models of critical speed (CS) for the prediction of 5,000-m running performance, 16 trained athletes completed an incremental test on a treadmill to determine maximal aerobic speed (MAS) and 3 randomly ordered runs to exhaustion at the [INCREMENT]70% intensity, at 110% and 98% of MAS. Critical speed and the distance covered above CS (D') were calculated using the hyperbolic speed-time (HYP), the linear distance-time (LIN), and the linear speed inverse-time model (INV). Five thousand meter performance was determined on a 400-m running track. Individual predictions of 5,000-m running time (t = [5,000-D']/CS) and speed (s = D'/t + CS) were calculated across the 3 models in addition to multiple regression analyses. Prediction accuracy was assessed with the standard error of estimate (SEE) from linear regression analysis and the mean difference expressed in units of measurement and coefficient of variation (%). Five thousand meter running performance (speed: 4.29 ± 0.39 m·s; time: 1,176 ± 117 seconds) was significantly better than the predictions from all 3 models (p performance (-1.0 to 1.1%). The SEE across all models and predictions was approximately 65 seconds or 0.20 m·s and is therefore considered as moderate. The results of this study have shown the importance of aerobic and anaerobic energy system contribution to predict 5,000-m running performance. Using estimates of CS and D' is valuable for predicting performance over race distances of 5,000 m.

  2. RAJA Performance Suite

    Energy Technology Data Exchange (ETDEWEB)

    2017-09-01

    The RAJA Performance Suite is designed to evaluate performance of the RAJA performance portability library on a wide variety of important high performance computing (HPC) algorithmic lulmels. These kernels assess compiler optimizations and various parallel programming model backends accessible through RAJA, such as OpenMP, CUDA, etc. The Initial version of the suite contains 25 computational kernels, each of which appears in 6 variants: Baseline SequcntiaJ, RAJA SequentiaJ, Baseline OpenMP, RAJA OpenMP, Baseline CUDA, RAJA CUDA. All variants of each kernel perform essentially the same mathematical operations and the loop body code for each kernel is identical across all variants. There are a few kernels, such as those that contain reduction operations, that require CUDA-specific coding for their CUDA variants. ActuaJ computer instructions executed and how they run in parallel differs depending on the parallel programming model backend used and which optimizations are perfonned by the compiler used to build the Perfonnance Suite executable. The Suite will be used primarily by RAJA developers to perform regular assessments of RAJA performance across a range of hardware platforms and compilers as RAJA features are being developed. It will also be used by LLNL hardware and software vendor panners for new defining requirements for future computing platform procurements and acceptance testing. In particular, the RAJA Performance Suite will be used for compiler acceptance testing of the upcoming CORAUSierra machine {initial LLNL delivery expected in late-2017/early 2018) and the CORAL-2 procurement. The Suite will aJso be used to generate concise source code reproducers of compiler and runtime issues we uncover so that we may provide them to relevant vendors to be fixed.

  3. Validity and reliability of critical speed, critical stroke rate, and anaerobic capacity in relation to front crawl swimming performances.

    Science.gov (United States)

    Dekerle, J; Sidney, M; Hespel, J M; Pelayo, P

    2002-02-01

    The purpose of this investigation was to determine whether the concepts of critical swimming speed, critical stroke rate and anaerobic swimming capacity could be used by coaches as a reliable index in order to monitor endurance performances in competitive swimmers. The results of this study conducted with well-trained swimmers showed that the 30-min test velocity (V30) is not different from the critical swimming speed determined from 200- and 400-m tests but is overestimated by 3.2 %. Furthermore, a regression analysis of the number of stroke cycles on time calculated for each swimmer showed a linear relationship (r(2) greater than 0.99 and p less than 0.01). The 30-min stroke rate test (SR30) was not different from the critical stroke rate determined from 200- and 400-m tests after a correction of minus 3.9 %. These data suggest that the slope of this regression line represents the critical stroke rate defined as the maximal stroke rate value, which can theoretically be maintained continuously without exhaustion. Coaches could easily use critical swimming speed combined with critical stroke rate in order not only to set aerobic training loads but also to control the swimming technique during training. Besides, anaerobic swimming capacity (ASC) values defined as the y-intercept of the regression line between distance and time were not correlated (p > 0.05) with the determined distance over which a significant drop in the maximal speed could be noticed on a 25-m test. Thus, ASC does not provide a reliable estimation of the anaerobic capacity.

  4. Criticality prompt gamma and neutron dose equations validated by Monte Carlo analyses and compared to known criticality accident doses

    Science.gov (United States)

    Hochhalter, Eugene

    The United States (US) Department of Energy [DOE] and the Nuclear Regulatory Commission [NRC] have provided the nuclear industry with requirements, goals, and objectives for the preparation of safety analysis and the finalization of that safety analysis in the form of a documented safety analysis (DSA) and technical safety requirements (TSRs). The deterministic guidance provided by the NRC in Regulatory Guide (RG) 3.33 for calculating the prompt gamma and neutron doses from a criticality has a number of potential issues associated with the semi-empirical equations, which make these equations potentially out dated. The NRC guidance for estimating the prompt gamma and neutron doses to a facility worker due to an accidental criticality was withdrawn without newer deterministic guidance being issued. This research project determined the original basis for the RG prompt gamma and neutron equations, evaluated the potential issues associated with the RG 3.33 prompt gamma and neutron equations, and modified the RG 3.33 point source prompt gamma and neutron equations to calculate the doses for the selected set of criticality accidents. The criticality accidents addressed by this dissertation include: 1. U-235, Pu-239, and Pu-241 point source criticality, 2. U-235, Pu-239, and Pu-241 sphere source criticality, 3. Uranyl nitrate and plutonium nitrate solutions in a cylindrical process vessel and 4. Low level waste in 55-gallon and 30-gallon drums. The prompt gamma and neutron equation doses (RG 3.33/3.34/3.35) are compared to actual nuclear industry criticality accident worker doses to assess the conservatism of the RG equations. Finally, the RG 3.33 prompt gamma and neutron dose equations are compared to MCNP5 results to investigate consistency with respect to the modified prompt gamma and neutron dose equations and the representative dose estimates for each of the criticality configurations (point source, spherical source, and cylindrical source). Knowledge and accurate

  5. Validation of an e-Learning 3.0 Critical Success Factors Framework: A Qualitative Research

    Directory of Open Access Journals (Sweden)

    Paula Miranda

    2017-09-01

    Full Text Available Aim/Purpose: As e-Learning 3.0 evolves from a theoretical construct into an actual solution for online learning, it becomes crucial to accompany this progress by scrutinising the elements that are at the origin of its success. Background: This paper outlines a framework of e-Learning 3.0’s critical success factors and its empirical validation. Methodology: The framework is the result of an extensive literature review and its empirical substantiation derives from semi-structured interviews with e-Learning experts. Contribution: The viewpoints of the experts enable the confirmation and the refinement of the original framework and serve as a foundation for the prospective implementation of e-Learning 3.0. Findings: The analysis of the interviews demonstrates that e-Learning 3.0 remains in its early stages with a reticent dissemination. Nonetheless, the interviewees invoked factors related to technology, content and stakeholders as being critical for the success of this new phase of e-Learning. Recommendations for Practitioners: Practitioners can use the framework as a guide for promoting and implementing effective e-Learning 3.0 initiatives. Recommendation for Researchers: As a new phenomenon with uncharted potential, e-Learning 3.0 should be placed at the centre of educational research. Impact on Society: The understanding of what drives the success of e-Learning 3.0 is fundamental for its implementation and for the progress of online education in this new stage of its evolution. Future Research: Future research ventures can include the design of quantitative and self-administered data collection instruments that can provide further insight into the elements of the framework.

  6. Validation of VHTRC calculation benchmark of critical experiment using the MCB code

    Directory of Open Access Journals (Sweden)

    Stanisz Przemysław

    2016-01-01

    Full Text Available The calculation benchmark problem Very High Temperature Reactor Critical (VHTR a pin-in-block type core critical assembly has been investigated with the Monte Carlo Burnup (MCB code in order to validate the latest version of Nuclear Data Library based on ENDF format. Executed benchmark has been made on the basis of VHTR benchmark available from the International Handbook of Evaluated Reactor Physics Benchmark Experiments. This benchmark is useful for verifying the discrepancies in keff values between various libraries and experimental values. This allows to improve accuracy of the neutron transport calculations that may help in designing the high performance commercial VHTRs. Almost all safety parameters depend on the accuracy of neutron transport calculation results that, in turn depend on the accuracy of nuclear data libraries. Thus, evaluation of the libraries applicability to VHTR modelling is one of the important subjects. We compared the numerical experiment results with experimental measurements using two versions of available nuclear data (ENDF-B-VII.1 and JEFF-3.2 prepared for required temperatures. Calculations have been performed with the MCB code which allows to obtain very precise representation of complex VHTR geometry, including the double heterogeneity of a fuel element. In this paper, together with impact of nuclear data, we discuss also the impact of different lattice modelling inside the fuel pins. The discrepancies of keff have been successfully observed and show good agreement with each other and with the experimental data within the 1 σ range of the experimental uncertainty. Because some propagated discrepancies observed, we proposed appropriate corrections in experimental constants which can improve the reactivity coefficient dependency. Obtained results confirm the accuracy of the new Nuclear Data Libraries.

  7. Measuring Critical Thinking in Physics: Development and Validation of a Critical Thinking Test in Electricity and Magnetism

    Science.gov (United States)

    Tiruneh, Dawit Tibebu; De Cock, Mieke; Weldeslassie, Ataklti G.; Elen, Jan; Janssen, Rianne

    2017-01-01

    Although the development of critical thinking (CT) is a major goal of science education, adequate emphasis has not been given to the measurement of CT skills in specific science domains such as physics. Recognizing that adequately assessing CT implies the assessment of both domain-specific and domain-general CT skills, this study reports on the…

  8. VALIDITY OF CRITICAL FREQUENCY TEST FOR MEASURING TABLE TENNIS AEROBIC ENDURANCE THROUGH SPECIFIC PROTOCOL

    Directory of Open Access Journals (Sweden)

    Alessandro M. Zagatto

    2008-12-01

    Full Text Available The aim of this study was to validate critical frequency specific test (critf for the estimation of the aerobic endurance in table tennis players. Methods: Eight male international-level table tennis players participated of this study. Specific tests were applied by using a mechanical ball thrower to control the intensity of the exercise. The critf was determined by applying three or four series of exercises to exhaustion (Tlim. The critf was evaluated by using lactate steady state test (90, 100, and 106 % of critf intensity. The other specific test was an incremental protocol used to determine the anaerobic threshold (AnTBI and the onset of blood lactate accumulation (OBLA using a ball thrower. Results: The critf (39.87 ± 3.31 balls·min-1 was not significantly different among AnTBI (48.11 ± 7.36 balls·min- 1 and OBLA3.5 (49.36 ± 12.04 balls·min-1 frequencies and it was correlated with AnTBI parameter (r = 0.78. At frequencies of the 90 and 100% of critf a dynamic equilibrium was verified in lactate concentration between the eighth and twentieth minutes. However, this dynamic equilibrium was not found at 106% intensity. Conclusion: The data indicate that in table tennis the critf model can be used for measuring the aerobic endurance

  9. Validation of science virtual test to assess 8th grade students' critical thinking on living things and environmental sustainability theme

    Science.gov (United States)

    Rusyati, Lilit; Firman, Harry

    2017-05-01

    This research was motivated by the importance of multiple-choice questions that indicate the elements and sub-elements of critical thinking and implementation of computer-based test. The method used in this research was descriptive research for profiling the validation of science virtual test to measure students' critical thinking in junior high school. The participant is junior high school students of 8th grade (14 years old) while science teacher and expert as the validators. The instrument that used as a tool to capture the necessary data are sheet of an expert judgment, sheet of legibility test, and science virtual test package in multiple choice form with four possible answers. There are four steps to validate science virtual test to measure students' critical thinking on the theme of "Living Things and Environmental Sustainability" in 7th grade Junior High School. These steps are analysis of core competence and basic competence based on curriculum 2013, expert judgment, legibility test and trial test (limited and large trial test). The test item criterion based on trial test are accepted, accepted but need revision, and rejected. The reliability of the test is α = 0.747 that categorized as `high'. It means the test instruments used is reliable and high consistency. The validity of Rxy = 0.63 means that the validity of the instrument was categorized as `high' according to interpretation value of Rxy (correlation).

  10. A validation study of existing neutronics tools against ZPPR-21 and ZPPR-15 critical experiments.

    Energy Technology Data Exchange (ETDEWEB)

    Yang, W.S.; Kim, S.J. (Nuclear Engineering Division)

    2007-09-30

    A study was performed to validate the existing tools for fast reactor neutronics analysis against previous critical experiments. The six benchmark problems for the ZPPR-21 critical experiments phases A through F specified in the Handbook of Evaluated Criticality Safety Benchmark Experiments were analyzed. Analysis was also performed for three loading configurations of the ZPPR-15 Phase A experiments. As-built core models were developed in XYZ geometries using the reactor loading records and drawer master information. Detailed Monte Carlo and deterministic transport calculations were performed, along with various modeling sensitivity analyses. The Monte Carlo simulations were carried out with the VIM code with continuous energy cross sections based on the ENDF/B-V.2 data. For deterministic calculations, region-dependent 230-group cross sections were generated using the ETOE-2/MC-2/SDX code system, again based on the ENDF/B-V.2 data. Plate heterogeneity effects were taken into account by SDX unit cell calculations. Core calculations were performed with the TWODANT discrete ordinate code for the ZPPR-21 benchmarks, and with the DIF3D nodal transport option for the ZPPR-15 experiments. For all six ZPPR-21 configurations where the Pu-239 concentration varies from 0 to 49 w/o and the U-235 concentration accordingly varies from 62 to 0 w/o, the core multiplication factor determined with a 230-group TWODANT calculation agreed with the VIM Monte Carlo solution within 0.20 %{Delta}k, and there was no indication of any systematic bias. The quality of principal cross sections generated with the MC-2 code was comparable to that of VIM cross sections. The overall reactivity effect due to the errors in the 230-group principal cross sections was estimated to be less than 0.05 %{Delta}k. The statistics of the differences between calculated values and specified benchmark experimental values showed similar bias (from -0.28 %{Delta}k to 0.33 %{Delta}k) for MC{sup 2}-2/TWODANT and VIM

  11. Investigation of reliability, validity and normality Persian version of the California Critical Thinking Skills Test; Form B (CCTST

    Directory of Open Access Journals (Sweden)

    Khallli H

    2003-04-01

    Full Text Available Background: To evaluate the effectiveness of the present educational programs in terms of students' achieving problem solving, decision making and critical thinking skills, reliable, valid and standard instrument are needed. Purposes: To Investigate the Reliability, validity and Norm of CCTST Form.B .The California Critical Thinking Skills Test contain 34 multi-choice questions with a correct answer in the jive Critical Thinking (CT cognitive skills domain. Methods: The translated CCTST Form.B were given t0405 BSN nursing students ojNursing Faculties located in Tehran (Tehran, Iran and Shahid Beheshti Universitiesthat were selected in the through random sampling. In order to determine the face and content validity the test was translated and edited by Persian and English language professor and researchers. it was also confirmed by judgments of a panel of medical education experts and psychology professor's. CCTST reliability was determined with internal consistency and use of KR-20. The construct validity of the test was investigated with factor analysis and internal consistency and group difference. Results: The test coefficien for reliablity was 0.62. Factor Analysis indicated that CCTST has been formed from 5 factor (element namely: Analysis, Evaluation, lriference, Inductive and Deductive Reasoning. Internal consistency method shows that All subscales have been high and positive correlation with total test score. Group difference method between nursing and philosophy students (n=50 indicated that there is meaningfUl difference between nursing and philosophy students scores (t=-4.95,p=0.OOO1. Scores percentile norm also show that percentile offifty scores related to 11 raw score and 95, 5 percentiles are related to 17 and 6 raw score ordinary. Conclusions: The Results revealed that the questions test is sufficiently reliable as a research tool, and all subscales measure a single construct (Critical Thinking and are able to distinguished the

  12. Assessing Critical Thinking in Higher Education: The HEIghten™ Approach and Preliminary Validity Evidence

    Science.gov (United States)

    Liu, Ou Lydia; Mao, Liyang; Frankel, Lois; Xu, Jun

    2016-01-01

    Critical thinking is a learning outcome highly valued by higher education institutions and the workforce. The Educational Testing Service (ETS) has designed a next generation assessment, the HEIghten™ critical thinking assessment, to measure students' critical thinking skills in analytical and synthetic dimensions. This paper introduces the…

  13. Trustworthy Variant Derivation with Translation Validation for Safety Critical Product Lines

    DEFF Research Database (Denmark)

    Iosif-Lazăr, Alexandru Florin; Wasowski, Andrzej

    2016-01-01

    that this presentation will encourage other researchers to use translation validation to validate more complex correctness properties in handling variability, as well as demonstrate to commercial tool vendors that formal verification can be introduced into their tools in a very lightweight manner....

  14. Validity in Mixed Methods Research in Education: The Application of Habermas' Critical Theory

    Science.gov (United States)

    Long, Haiying

    2017-01-01

    Mixed methods approach has developed into the third methodological movement in educational research. Validity in mixed methods research as an important issue, however, has not been examined as extensively as that of quantitative and qualitative research. Additionally, the previous discussions of validity in mixed methods research focus on research…

  15. [Signal Processing Suite Design

    Science.gov (United States)

    Sahr, John D.; Mir, Hasan; Morabito, Andrew; Grossman, Matthew

    2003-01-01

    Our role in this project was to participate in the design of the signal processing suite to analyze plasma density measurements on board a small constellation (3 or 4) satellites in Low Earth Orbit. As we are new to space craft experiments, one of the challenges was to simply gain understanding of the quantity of data which would flow from the satellites, and possibly to interact with the design teams in generating optimal sampling patterns. For example, as the fleet of satellites were intended to fly through the same volume of space (displaced slightly in time and space), the bulk plasma structure should be common among the spacecraft. Therefore, an optimal, limited bandwidth data downlink would take advantage of this commonality. Also, motivated by techniques in ionospheric radar, we hoped to investigate the possibility of employing aperiodic sampling in order to gain access to a wider spatial spectrum without suffering aliasing in k-space.

  16. Clementine sensor suite

    Energy Technology Data Exchange (ETDEWEB)

    Ledebuhr, A.G. [Lawrence Livermore National Lab., CA (United States)

    1994-11-15

    LLNL designed and built the suite of six miniaturized light-weight space-qualified sensors utilized in the Clementine mission. A major goal of the Clementine program was to demonstrate technologies originally developed for Ballistic Missile Defense Organization Programs. These sensors were modified to gather data from the moon. This overview presents each of these sensors and some preliminary on-orbit performance estimates. The basic subsystems of these sensors include optical baffles to reject off-axis stray light, light-weight ruggedized optical systems, filter wheel assemblies, radiation tolerant focal plane arrays, radiation hardened control and readout electronics and low mass and power mechanical cryogenic coolers for the infrared sensors. Descriptions of each sensor type are given along with design specifications, photographs and on-orbit data collected.

  17. Trustworthy Variant Derivation with Translation Validation for Safety Critical Product Lines

    DEFF Research Database (Denmark)

    Iosif-Lazăr, Alexandru Florin; Wasowski, Andrzej

    2016-01-01

    translation validation. We demonstrate it using Featherweight VML—a core language for separate variability modeling relying on a single kind of variation point to define transformations of artifacts seen as object models. We use Featherweight VML with its semantics as a correctness specification...... for validating outputs of a variant derivation tool. We embed this specification in the theorem proving system Coq and develop an automatic generator of correctness proofs for translation results within Coq. We show that the correctness checking procedure is decidable, which allows the trustworthy proof checker...... that this presentation will encourage other researchers to use translation validation to validate more complex correctness properties in handling variability, as well as demonstrate to commercial tool vendors that formal verification can be introduced into their tools in a very lightweight manner....

  18. Literature research concerning alternative methods for validation of criticality calculation systems; Literaturrecherche zu alternativen Daten und Methoden zur Validierung von Kritikalitaetsrechensystemen

    Energy Technology Data Exchange (ETDEWEB)

    Behler, Matthias

    2016-05-15

    Beside radiochemical analysis of irradiated fuel and critical experiments, which has become a well-established basis for the validation of depletion code and criticality codes respectively, also results of oscillation experiments or the operating conditions of power reactor and research reactors can provide useful information for the validation of the above mentioned codes. Based on a literature review the potential of the utilization of oscillation experiment measurements for the validation of criticality codes is estimated. It is found that the reactivity measurements for actinides and fission products within the CERES program on the reactors DIMPLE (Winfrith, UK) and MINERVE (Cadarache, France) can give a valuable addition to the commonly used critical experiments for criticality code validation. However, there are approaches but yet no generally satisfactory solution for integrating the reactivity measurements in a quantitative bias determination for the neutron multiplication factor of typical application cases including irradiated spent fuel outside reactor cores, calculated using common criticality codes.

  19. Numerical simulation and experimental validation of internal heat exchanger influence on CO{sub 2} trans-critical cycle performance

    Energy Technology Data Exchange (ETDEWEB)

    Rigola, Joaquim; Ablanque, Nicolas; Perez-Segarra, Carlos D.; Oliva, Assensi [Centre Tecnologic de Transferencia de Calor (CTTC), Universitat Politecnica de Catalunya (UPC), ETSEIAT, C. Colom 11, 08222 Terrassa (Barcelona) (Spain)

    2010-06-15

    The present paper is a numerical and experimental comparative study of the whole vapour compression refrigerating cycle in general, and reciprocating compressors in particular, with the aim of showing the possibilities that CO{sub 2} offers for commercial refrigeration, considering a single-stage trans-critical cycle using semi-hermetic reciprocating compressors under small cooling capacity systems. The present work is focussed on the influence of using an internal heat exchanger (IHX) in order to improve the cycle performance under real working conditions. In order to validate the numerical results, an experimental unit specially designed and built to analyze trans-critical refrigerating equipments considering IHX has been built. Both numerical results and experimental data show reasonable good agreement, while the comparative global values conclude the improvement of cooling capacity and COP when IHX is considered in the CO{sub 2} trans-critical cycle. (author)

  20. KAERI software verification and validation guideline for developing safety-critical software in digital I and C system of NPP

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jang Yeol; Lee, Jang Soo; Eom, Heung Seop

    1997-07-01

    This technical report is to present V and V guideline development methodology for safety-critical software in NPP safety system. Therefore it is to present V and V guideline of planning phase for the NPP safety system in addition to critical safety items, for example, independence philosophy, software safety analysis concept, commercial off the shelf (COTS) software evaluation criteria, inter-relationships between other safety assurance organizations, including the concepts of existing industrial standard, IEEE Std-1012, IEEE Std-1059. This technical report includes scope of V and V guideline, guideline framework as part of acceptance criteria, V and V activities and task entrance as part of V and V activity and exit criteria, review and audit, testing and QA records of V and V material and configuration management, software verification and validation plan production etc., and safety-critical software V and V methodology. (author). 11 refs.

  1. Analytical Methods for Verification and Validation of Adaptive Systems in Safety-Critical Aerospace Applications Project

    Data.gov (United States)

    National Aeronautics and Space Administration — A major challenge of the use of adaptive systems in safety-critical applications is the software life-cycle: requirement engineering through verification and...

  2. Public Access Space Suit

    Science.gov (United States)

    Hempsell, C. M.

    The paper considers the role a Public Access Space Suit (PASS) could have in the certification of Reusable Launch Vehicles (RLVs) for use in space tourism and other non-government activities. Two distinct classes of hazards are highlighted. The first class involve hazards which are common with civil aircraft but where the RLV exacerbates the safety issue. The second class of hazard are those unique to RLVs. From consideration of these hazards a specification for the PASS is derived. Also the additional roles the PASS could have on a space station are considered both as a continuation of the safety role and a means by which tourists could experience recreational “spacewalks”. It is shown no significant additional requirements are generated to perform these extra roles. A feasibility design for a PASS is presented showing how these requirements could be met. The PASS concept derived in this paper is intended to be an input into the overall evaluation of costs and approaches to space tourism with the objective of exploring whether it is the best route, not only to meet safety requirements, but also to enhance the marketability of any space tourism venture.

  3. An Approach for Validating Actinide and Fission Product Burnup Credit Criticality Safety Analyses-Isotopic Composition Predictions

    Energy Technology Data Exchange (ETDEWEB)

    Radulescu, Georgeta [ORNL; Gauld, Ian C [ORNL; Ilas, Germina [ORNL; Wagner, John C [ORNL

    2011-01-01

    The expanded use of burnup credit in the United States (U.S.) for storage and transport casks, particularly in the acceptance of credit for fission products, has been constrained by the availability of experimental fission product data to support code validation. The U.S. Nuclear Regulatory Commission (NRC) staff has noted that the rationale for restricting the Interim Staff Guidance on burnup credit for storage and transportation casks (ISG-8) to actinide-only is based largely on the lack of clear, definitive experiments that can be used to estimate the bias and uncertainty for computational analyses associated with using burnup credit. To address the issues of burnup credit criticality validation, the NRC initiated a project with the Oak Ridge National Laboratory to (1) develop and establish a technically sound validation approach for commercial spent nuclear fuel (SNF) criticality safety evaluations based on best-available data and methods and (2) apply the approach for representative SNF storage and transport configurations/conditions to demonstrate its usage and applicability, as well as to provide reference bias results. The purpose of this paper is to describe the isotopic composition (depletion) validation approach and resulting observations and recommendations. Validation of the criticality calculations is addressed in a companion paper at this conference. For isotopic composition validation, the approach is to determine burnup-dependent bias and uncertainty in the effective neutron multiplication factor (keff) due to bias and uncertainty in isotopic predictions, via comparisons of isotopic composition predictions (calculated) and measured isotopic compositions from destructive radiochemical assay utilizing as much assay data as is available, and a best-estimate Monte Carlo based method. This paper (1) provides a detailed description of the burnup credit isotopic validation approach and its technical bases, (2) describes the application of the approach for

  4. Validation of MCNP6.1 for Criticality Safety of Pu-Metal, -Solution, and -Oxide Systems

    Energy Technology Data Exchange (ETDEWEB)

    Kiedrowski, Brian C. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Conlin, Jeremy Lloyd [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Favorite, Jeffrey A. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Kahler, III, Albert C. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Kersting, Alyssa R. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Parsons, Donald K. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Walker, Jessie L. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-05-13

    Guidance is offered to the Los Alamos National Laboratory Nuclear Criticality Safety division towards developing an Upper Subcritical Limit (USL) for MCNP6.1 calculations with ENDF/B-VII.1 nuclear data for three classes of problems: Pu-metal, -solution, and -oxide systems. A benchmark suite containing 1,086 benchmarks is prepared, and a sensitivity/uncertainty (S/U) method with a generalized linear least squares (GLLS) data adjustment is used to reject outliers, bringing the total to 959 usable benchmarks. For each class of problem, S/U methods are used to select relevant experimental benchmarks, and the calculational margin is computed using extreme value theory. A portion of the margin of sub criticality is defined considering both a detection limit for errors in codes and data and uncertainty/variability in the nuclear data library. The latter employs S/U methods with a GLLS data adjustment to find representative nuclear data covariances constrained by integral experiments, which are then used to compute uncertainties in keff from nuclear data. The USLs for the classes of problems are as follows: Pu metal, 0.980; Pu solutions, 0.973; dry Pu oxides, 0.978; dilute Pu oxide-water mixes, 0.970; and intermediate-spectrum Pu oxide-water mixes, 0.953.

  5. Enhancing students' learning in problem based learning: validation of a self-assessment scale for active learning and critical thinking.

    Science.gov (United States)

    Khoiriyah, Umatul; Roberts, Chris; Jorm, Christine; Van der Vleuten, C P M

    2015-08-26

    Problem based learning (PBL) is a powerful learning activity but fidelity to intended models may slip and student engagement wane, negatively impacting learning processes, and outcomes. One potential solution to solve this degradation is by encouraging self-assessment in the PBL tutorial. Self-assessment is a central component of the self-regulation of student learning behaviours. There are few measures to investigate self-assessment relevant to PBL processes. We developed a Self-assessment Scale on Active Learning and Critical Thinking (SSACT) to address this gap. We wished to demonstrated evidence of its validity in the context of PBL by exploring its internal structure. We used a mixed methods approach to scale development. We developed scale items from a qualitative investigation, literature review, and consideration of previous existing tools used for study of the PBL process. Expert review panels evaluated its content; a process of validation subsequently reduced the pool of items. We used structural equation modelling to undertake a confirmatory factor analysis (CFA) of the SSACT and coefficient alpha. The 14 item SSACT consisted of two domains "active learning" and "critical thinking." The factorial validity of SSACT was evidenced by all items loading significantly on their expected factors, a good model fit for the data, and good stability across two independent samples. Each subscale had good internal reliability (>0.8) and strongly correlated with each other. The SSACT has sufficient evidence of its validity to support its use in the PBL process to encourage students to self-assess. The implementation of the SSACT may assist students to improve the quality of their learning in achieving PBL goals such as critical thinking and self-directed learning.

  6. Establishment and Validation of GV-SAPS II Scoring System for Non-Diabetic Critically Ill Patients.

    Directory of Open Access Journals (Sweden)

    Wen-Yue Liu

    Full Text Available Recently, glucose variability (GV has been reported as an independent risk factor for mortality in non-diabetic critically ill patients. However, GV is not incorporated in any severity scoring system for critically ill patients currently. The aim of this study was to establish and validate a modified Simplified Acute Physiology Score II scoring system (SAPS II, integrated with GV parameters and named GV-SAPS II, specifically for non-diabetic critically ill patients to predict short-term and long-term mortality.Training and validation cohorts were exacted from the Multiparameter Intelligent Monitoring in Intensive Care database III version 1.3 (MIMIC-III v1.3. The GV-SAPS II score was constructed by Cox proportional hazard regression analysis and compared with the original SAPS II, Sepsis-related Organ Failure Assessment Score (SOFA and Elixhauser scoring systems using area under the curve of the receiver operator characteristic (auROC curve.4,895 and 5,048 eligible individuals were included in the training and validation cohorts, respectively. The GV-SAPS II score was established with four independent risk factors, including hyperglycemia, hypoglycemia, standard deviation of blood glucose levels (GluSD, and SAPS II score. In the validation cohort, the auROC values of the new scoring system were 0.824 (95% CI: 0.813-0.834, P< 0.001 and 0.738 (95% CI: 0.725-0.750, P< 0.001, respectively for 30 days and 9 months, which were significantly higher than other models used in our study (all P < 0.001. Moreover, Kaplan-Meier plots demonstrated significantly worse outcomes in higher GV-SAPS II score groups both for 30-day and 9-month mortality endpoints (all P< 0.001.We established and validated a modified prognostic scoring system that integrated glucose variability for non-diabetic critically ill patients, named GV-SAPS II. It demonstrated a superior prognostic capability and may be an optimal scoring system for prognostic evaluation in this patient

  7. In Memory of All the Broken Ones: Catalytic Validity through Critical Arts Research for Social Change

    Science.gov (United States)

    Robson, Claire; Sumara, Dennis

    2016-01-01

    The authors of this article use data produced in a collaborative community arts group in BC Canada as a way to think about validation in arts-based educational research (ABER). As Lather attempted to find middle ground between "rampant subjectivity" and "pointless precision" in research, she (1986) suggested that studies with…

  8. The concept of borderline conditions: a critical comment on validity issues

    DEFF Research Database (Denmark)

    Parnas, Josef

    1994-01-01

    is dominated by an exaggerated quest for reliability at the expense of concern with validity issues. Concepts of operational criteria, polythetic-prototypic systems, and epistemic peculiarities of psychiatric, clinical typification are briefly exposed. It is suggested that future scientific progress...

  9. The Development and Validation of a Mechanical Critical Thinking Scale for High School Students

    Science.gov (United States)

    Yu, Kuang-Chao; Lin, Kuen-Yi; Chang, Shu-Fen

    2017-01-01

    The purpose of this study was to develop a mechanical critical thinking scale for high school students. A stratified random sampling method was used to establish the norms. After pre-tests and item analysis, the scale was determined to have five subtest sections (i.e., recognition of assumptions, induction, deduction, interpretation, and…

  10. Examining Diversity in Organizations from Critical Perspectives: The Validity of the Research Process

    NARCIS (Netherlands)

    Bleijenbergh, I.L.; Fielden, S.; Bendl, R.; Bleijenbergh, I.; Henttonen, E.; Mills, A.J.

    2015-01-01

    In this chapter we discuss how examining diversity in organizations from critical perspectives influences all phases of the research process. It affects the framing of research questions, the selection of research strategies, the collection of sources and analysis of data, the assessment of the

  11. Validity of accessible critical nitrogen dilution curves in perennial ryegrass for seed production

    DEFF Research Database (Denmark)

    Gislum, René; Boelt, Birte

    2009-01-01

    The objectives were to test if accessible critical nitrogen dilution curves (NDCs) in rapeseed, pea, alfalfa, tall fescue, wheat, annual ryegrass and linseed could be used in grass species for seed production and to develop a critical NDC especially in grass species for seed production. The criti...... the NDCs in tall fescue, alfalfa, pea and rapeseed. These findings should be used to continue the interesting and necessary work on developing a NDC in grass species for seed production.......The objectives were to test if accessible critical nitrogen dilution curves (NDCs) in rapeseed, pea, alfalfa, tall fescue, wheat, annual ryegrass and linseed could be used in grass species for seed production and to develop a critical NDC especially in grass species for seed production...... (Lolium perenne L.) and red fescue (Festuca rubra L.) for seed production were carried out at different locations in Denmark from 1996 to 2005. At least three different N application rates were applied in each experiment. Shoot biomass (t ha-1) and N concentration expressed in percentage of dry matter...

  12. HPC Benchmark Suite NMx Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Intelligent Automation Inc., (IAI) and University of Central Florida (UCF) propose to develop a comprehensive numerical test suite for benchmarking current and...

  13. The concept of borderline conditions: a critical comment on validity issues

    DEFF Research Database (Denmark)

    Parnas, Josef

    1994-01-01

    is dominated by an exaggerated quest for reliability at the expense of concern with validity issues. Concepts of operational criteria, polythetic-prototypic systems, and epistemic peculiarities of psychiatric, clinical typification are briefly exposed. It is suggested that future scientific progress...... in the area of personality research must take into account these general methodological considerations: repotentiate clinical-phenomenological observation, include prototypical approaches, extend studied samples with subjects drawn from the general population and import insights from personality trait...

  14. Epidemiology, outcomes and validation of RIFLE and AKIN criteria in acute kidney injury (AKI) in critically ill patients: Indian perspective.

    Science.gov (United States)

    Reddy, N Pavan Kumar; Ravi, K P; Dhanalakshmi, P; Annigeri, Rajeev; Ramakrishnan, Nagarajan; Venkataraman, Ramesh

    2014-07-01

    Although the epidemiology and the impact of Acute Kidney Injury on outcomes are well-known in the Western literature, good data is lacking from India. Most studies published from India have not evaluated epidemiology of Acute Kidney Injury in the Intensive Care Unit setting and/or have not used validated criteria. In our observational study of 250 patients, admitted to a tertiary level ICU, we have explored the epidemiology of Acute Kidney Injury using both RIFLE and AKIN criteria and have validated them. We have also demonstrated that the severity of AKI is an independent predictor of mortality in critically ill patients. Our results are very much comparable to other studies and we feel that this study will remain as an epidemiological reference point for Indian clinicians dealing with AKI.

  15. A critical assessment of validity of scales and stadiometers in a Danish hospital setting

    DEFF Research Database (Denmark)

    Geiker, Nina Rica Wium; Hørup Larsen, Sisse Marie; Stender, Steen

    Objective To critically assess the accuracy of scales and stadiometers at a Danish hospital. Conclusion Less than half the scales and stadiometers detected accurate weight and height. The margin of potential error may lead to suboptimal diagnostics of obesity and assessment of the nutritional sta...... status of both in and out patients. It is necessary at least yearly to calibrate scales and stadiometers, in order to obtain correct assessment of height and weight.......Objective To critically assess the accuracy of scales and stadiometers at a Danish hospital. Conclusion Less than half the scales and stadiometers detected accurate weight and height. The margin of potential error may lead to suboptimal diagnostics of obesity and assessment of the nutritional...

  16. Multi-Trait Multi-Method Matrices for the Validation of Creativity and Critical Thinking Assessments for Secondary School Students in England and Greece

    Directory of Open Access Journals (Sweden)

    Ourania Maria Ventista

    2017-08-01

    Full Text Available The aim of this paper is the validation of measurement tools which assess critical thinking and creativity as general constructs instead of subject-specific skills. Specifically, this research examined whether there is convergent and discriminant (or divergent validity between measurement tools of creativity and critical thinking. For this purpose, the multi-trait and multi-method matrix suggested by Campbell and Fiske (1959 was used. This matrix presented the correlation of scores that students obtain in different assessments in order to reveal whether the assessments measure the same or different constructs. Specifically, the two methods used were written and oral exams, and the two traits measured were critical thinking and creativity. For the validation of the assessments, 30 secondary-school students in Greece and 21 in England completed the assessments. The sample in both countries provided similar results. The critical thinking tools demonstrated convergent validity when compared with each other and discriminant validity with the creativity assessments. Furthermore, creativity assessments which measure the same aspect of creativity demonstrated convergent validity. To conclude, this research provided indicators that critical thinking and creativity as general constructs can be measured in a valid way. However, since the sample was small, further investigation of the validation of the assessment tools with a bigger sample is recommended.

  17. Manikin Testing on LASA Suit

    Science.gov (United States)

    2006-03-16

    environmental sensors were either attached to a hanging frame or the flotation frame to provide the environmental temperature. A wave generator consisting...results of the ACE extreme cold weather garments, LASA immersion suit, and modified current flyer’s coverall immersion suit in stil air and 40 cm

  18. Validity of bond strength tests: A critical review-Part II

    Science.gov (United States)

    Sirisha, Kantheti; Rambabu, Tankonda; Ravishankar, Yalavarthi; Ravikumar, Pabbati

    2014-01-01

    Background: Macro-bond strength tests resulted in cohesive failures and overestimation of bond strengths. To reduce the flaws, micro-bond strength tests were introduced. They are the most commonly used bond-strength tests. Objective: Thus the objective of this review is to critically review the reliability of micro-bond strength tests used to evaluate resin-tooth interface. Data Collection: Relevant articles published between January 1994 and July 2013 were collected from Pubmed database, Google scholar and hand searched journals of Conservative Dentistry, Endodontics and Dental materials. Data Synthesis: Variables that influence the test outcome are categorized into substrate related factors, factors related to specimen properties, specimen preparation and test methodology. Impact of these variables on the test outcome is critically analyzed. Conclusion: Micro-bond tests are more reliable than macro-bond tests. However, no standard format exists for reporting the bond strength tests which could lead to misinterpretation of the data and bonding abilities of adhesives. PMID:25298640

  19. Validation of Cross Sections with Criticality Experiment and Reaction Rates: the Neptunium Case

    CERN Document Server

    Leong, L S; Audouin, L; Berthier, B; Le Naour, C; Stéphan, C; Paradela, C; Tarrío, D; Duran, I

    2014-01-01

    The Np-237 neutron-induced fission cross section has been recently measured in a large energy range (from eV to GeV) at the n\\_TOF facility at CERN. When compared to previous measurements the n\\_TOF fission cross section appears to be higher by 5-7\\% beyond the fission threshold. To check the relevance of the n\\_TOF data, we considered a criticality experiment performed at Los Alamos with a 6 kg sphere of Np-237, surrounded by uranium highly enriched in U-235 so as to approach criticality with fast neutrons. The multiplication factor k(eff) of the calculation is in better agreement with the experiment when we replace the ENDF/B-VII. 0 evaluation of the Np-237 fission cross section by the n\\_TOF data. We also explored the hypothesis of deficiencies of the inelastic cross section in U-235 which has been invoked by some authors to explain the deviation of 750 pcm. The large modification needed to reduce the deviation seems to be incompatible with existing inelastic cross section measurements. Also we show that t...

  20. Analysis of the impact of correlated benchmark experiments on the validation of codes for criticality safety analysis

    Energy Technology Data Exchange (ETDEWEB)

    Bock, M.; Stuke, M.; Behler, M. [Gesellschaft fuer Anlagen- und Reaktorsicherheit mbH (GRS), Garching (Germany)

    2013-07-01

    The validation of a code for criticality safety analysis requires the recalculation of benchmark experiments. The selected benchmark experiments are chosen such that they have properties similar to the application case that has to be assessed. A common source of benchmark experiments is the 'International Handbook of Evaluated Criticality Safety Benchmark Experiments' (ICSBEP Handbook) compiled by the 'International Criticality Safety Benchmark Evaluation Project' (ICSBEP). In order to take full advantage of the information provided by the individual benchmark descriptions for the application case, the recommended procedure is to perform an uncertainty analysis. The latter is based on the uncertainties of experimental results included in most of the benchmark descriptions. They can be performed by means of the Monte Carlo sampling technique. The consideration of uncertainties is also being introduced in the supplementary sheet of DIN 25478 'Application of computer codes in the assessment of criticality safety'. However, for a correct treatment of uncertainties taking into account the individual uncertainties of the benchmark experiments is insufficient. In addition, correlations between benchmark experiments have to be handled correctly. For example, these correlations can arise due to different cases of a benchmark experiment sharing the same components like fuel pins or fissile solutions. Thus, manufacturing tolerances of these components (e.g. diameter of the fuel pellets) have to be considered in a consistent manner in all cases of the benchmark experiment. At the 2012 meeting of the Expert Group on 'Uncertainty Analysis for Criticality Safety Assessment' (UACSA) of the OECD/NEA a benchmark proposal was outlined that aimed for the determination of the impact on benchmark correlations on the estimation of the computational bias of the neutron multiplication factor (k{sub eff}). The analysis presented here is based on this

  1. The measurement, control, and validation of critical parameters in an electron beam sterilization facility

    Science.gov (United States)

    Burns, P.; Drewell, N. H.; McKeown, J.

    1996-06-01

    The delivery and validation of a specified dose to a medical device are key concerns of operators of electron beam irradiation facilities. In an IMPELA-based irradiator , four of the parameters that directly influence the absorbed dose distribution in the product are controllable in real time — the electron energy, average beam current, scanned area, and the product exposure time. The 10 MeV accelerator operates at 50 kW with a stream of 200 μs wide, 100 mA pulses at a repetition rate of 250 Hz. The combination of short-term intra-pulse regulation with long-term pulse-to-pulse stability makes the IMPELA output attractive for the sterilization of medical products. The measurement and closed-loop control techniques used in the IMPELA design with be described with reference to facilitating compliance with medical sterilization standards. IMPELA is a registered trademark of Atomic Energy of Canada Ltd.

  2. Validity of the clinical diagnostic criteria for vascular dementia: a critical review. Part II.

    Science.gov (United States)

    Wiederkehr, Sandra; Simard, Martine; Fortin, Claudette; van Reekum, Robert

    2008-01-01

    This review is the second of a two-part series focusing on the validity of eight clinical criteria for vascular dementia. Sixteen studies were selected according to their purposes and quality of experimental design. The analysis revealed that criteria for vascular dementia are not interchangeable; the eight criteria sets yielded different sensitivity and specificity results, as well as marked variability in incidence, prevalence, and frequency rates. Although the State of California Alzheimer's Disease Diagnostic and Treatment Centers (ADDTC) were the most sensitive and useful criteria in clinical settings and the National Institute of Neurological Disorders and Stroke-Association Internationale pour la Recherche et l'Enseignement en Neurosciences (NINDS-AIREN) were the most specific and useful criteria in research, all criteria shared similar flaws. A definition of the cognitive syndrome, associated vascular causes or lesions, and methods of assessment should be clearly specified in the future. Suggestions for improvement are made.

  3. Measuring Moral Distress Among Critical Care Clinicians: Validation and Psychometric Properties of the Italian Moral Distress Scale-Revised.

    Science.gov (United States)

    Lamiani, Giulia; Setti, Ilaria; Barlascini, Luca; Vegni, Elena; Argentero, Piergiorgio

    2017-03-01

    Moral distress is a common experience among critical care professionals, leading to frustration, withdrawal from patient care, and job abandonment. Most of the studies on moral distress have used the Moral Distress Scale or its revised version (Moral Distress Scale-Revised). However, these scales have never been validated through factor analysis. This article aims to explore the factorial structure of the Moral Distress Scale-Revised and develop a valid and reliable scale through factor analysis. Validation study using a survey design. Eight medical-surgical ICUs in the north of Italy. A total of 184 clinicians (64 physicians, 94 nurses, and 14 residents). The Moral Distress Scale-Revised was translated into Italian and administered along with a measure of depression (Beck Depression Inventory-Second Edition) to establish convergent validity. Exploratory factor analysis was conducted to explore the Moral Distress Scale-Revised factorial structure. Items with low (less than or equal to 0.350) or multiple saturations were removed. The resulting model was tested through confirmatory factor analysis. The Italian Moral Distress Scale-Revised is composed of 14 items referring to four factors: futile care, poor teamwork, deceptive communication, and ethical misconduct. This model accounts for 59% of the total variance and presents a good fit with the data (root mean square error of approximation = 0.06; comparative fit index = 0.95; Tucker-Lewis index = 0.94; weighted root mean square residual = 0.65). The Italian Moral Distress Scale-Revised evinces good reliability (α = 0.81) and moderately correlates with Beck Depression Inventory-Second Edition (r = 0.293; p moral distress total score between physicians and nurses. However, nurses scored higher on futile care than physicians (t = 2.051; p = 0.042), whereas physicians scored higher on deceptive communication than nurses (t = 3.617; p Moral distress was higher for those clinicians considering to give up their position

  4. Translation, adaptation, and validation of the behavioral pain scale and the critical-care pain observational tools in Taiwan

    Directory of Open Access Journals (Sweden)

    Hsiung NH

    2016-09-01

    Full Text Available Nai-Huan Hsiung,1 Yen Yang,1 Ming Shinn Lee,2 Koustuv Dalal,3 Graeme D Smith4 1Department of Nursing, College of Nursing, Tzu Chi University of Science and Technology, 2Department of Curriculum Design and Human Potentials Development, National Dong Hwa University, Hualien, Taiwan, Republic of China; 3Department of Public Health Science, School of Health Sciences, Örebro University, Örebro, Sweden; 4School of Nursing, Midwifery & Social Care, Edinburgh Napier University, Edinburgh, UK Abstract: This study describes the cultural adaptation and testing of the behavioral pain scale (BPS and the critical-care pain observation tools (CPOT for pain assessment in Taiwan. The cross-cultural adaptation followed the steps of translation, including forward translation, back-translation, evaluation of the translations by a committee of experts, adjustments, and then piloting of the prefinal versions of the BPS and the CPOT. A content validity index was used to assess content validities of the BPS and the CPOT, with 0.80 preset as the level that would be regarded as acceptable. The principal investigator then made adjustments when the content validity index was <0.80. The pilot test was performed with a sample of ten purposively selected patients by 2 medical staff from a medical care center in Taiwan. The BPS and the CPOT are adequate instruments for the assessment of pain levels in patients who cannot communicate due to sedation and ventilation treatments. Keywords: pain, scales, BPS, CPOT, Taiwan

  5. The validity and reliability of the portuguese versions of three tools used to diagnose delirium in critically ill patients

    Directory of Open Access Journals (Sweden)

    Dimitri Gusmao-Flores

    2011-01-01

    Full Text Available OBJECTIVES: The objectives of this study are to compare the sensitivity and specificity of three diagnostic tools for delirium (the Intensive Care Delirium Screening Checklist, the Confusion Assessment Method for Intensive Care Units and the Confusion Assessment Method for Intensive Care Units Flowsheet in a mixed population of critically ill patients, and to validate the Brazilian Portuguese Confusion Assessment Method for Intensive Care Units. METHODS: The study was conducted in four intensive care units in Brazil. Patients were screened for delirium by a psychiatrist or neurologist using the Diagnostic and Statistical Manual of Mental Disorders. Patients were subsequently screened by an intensivist using Portuguese translations of the three tools. RESULTS: One hundred and nineteen patients were evaluated and 38.6% were diagnosed with delirium by the reference rater. The Confusion Assessment Method for Intensive Care Units had a sensitivity of 72.5% and a specificity of 96.2%; the Confusion Assessment Method for Intensive Care Units Flowsheet had a sensitivity of 72.5% and a specificity of 96.2%; the Intensive Care Delirium Screening Checklist had a sensitivity of 96.0% and a specificity of 72.4%. There was strong agreement between the Confusion Assessment Method for Intensive Care Units and the Confusion Assessment Method for Intensive Care Units Flowsheet (kappa coefficient = 0.96 CONCLUSION: All three instruments are effective diagnostic tools in critically ill intensive care unit patients. In addition, the Brazilian Portuguese version of the Confusion Assessment Method for Intensive Care Units is a valid and reliable instrument for the assessment of delirium among critically ill patients.

  6. Implementing Sentinels in the TARGIT BI Suite

    DEFF Research Database (Denmark)

    Middelfart, Morten; Pedersen, Torben Bach

    2011-01-01

    This paper describes the implementation of socalled sentinels in the TARGIT BI Suite. Sentinels are a novel type of rules that can warn a user if one or more measure changes in a multi-dimensional data cube are expected to cause a change to another measure critical to the user. Sentinels notify u...... pattern mining or correlation techniques. We demonstrate, through extensive experiments, that mining and usage of sentinels is feasible with good performance for the typical users on a real, operational data warehouse.......This paper describes the implementation of socalled sentinels in the TARGIT BI Suite. Sentinels are a novel type of rules that can warn a user if one or more measure changes in a multi-dimensional data cube are expected to cause a change to another measure critical to the user. Sentinels notify...... present in detail how sentinels are mined from data, and how sentinels are scored. We describe in detail how the sentinel mining algorithm is implemented in the TARGIT BI Suite, and show that our implementation is able to discover strong and useful sentinels that could not be found when using sequential...

  7. Orion ECLSS/Suit System Intermediate Pressure Integrated Suit Test

    Science.gov (United States)

    Barido, Richard A.

    2014-01-01

    The Intermediate Pressure Integrated Suit Test (IPIST) phase of the integrated system testing of the Orion Vehicle Atmosphere Revitalization System (ARS) technology was conducted for the Multipurpose Crew Vehicle (MPCV) Program within the National Aeronautics and Space Administration (NASA) Exploration Systems Mission Directorate. This test was performed in the eleven-foot human-rated vacuum chamber at the NASA Johnson Space Center by the Crew and Thermal Systems Division. This testing is the second phase of suit loop testing to demonstrate the viability of the Environmental Control and Life Support System (ECLSS) being developed for Orion. The IPIST configuration consisted of development hardware that included the CAMRAS, air revitalization loop fan and suit loop regulator. Two test subjects were in pressure suits at varying suit pressures. Follow-on testing, to be conducted in 2014, will utilize the same hardware with human test subjects in pressure suits at vacuum. This paper will discuss the results and findings of IPIST and will also discuss future testing.

  8. From Informal Safety-Critical Requirements to Property-Driven Formal Validation

    Science.gov (United States)

    Cimatti, Alessandro; Roveri, Marco; Susi, Angelo; Tonetta, Stefano

    2008-01-01

    Most of the efforts in formal methods have historically been devoted to comparing a design against a set of requirements. The validation of the requirements themselves, however, has often been disregarded, and it can be considered a largely open problem, which poses several challenges. The first challenge is given by the fact that requirements are often written in natural language, and may thus contain a high degree of ambiguity. Despite the progresses in Natural Language Processing techniques, the task of understanding a set of requirements cannot be automatized, and must be carried out by domain experts, who are typically not familiar with formal languages. Furthermore, in order to retain a direct connection with the informal requirements, the formalization cannot follow standard model-based approaches. The second challenge lies in the formal validation of requirements. On one hand, it is not even clear which are the correctness criteria or the high-level properties that the requirements must fulfill. On the other hand, the expressivity of the language used in the formalization may go beyond the theoretical and/or practical capacity of state-of-the-art formal verification. In order to solve these issues, we propose a new methodology that comprises of a chain of steps, each supported by a specific tool. The main steps are the following. First, the informal requirements are split into basic fragments, which are classified into categories, and dependency and generalization relationships among them are identified. Second, the fragments are modeled using a visual language such as UML. The UML diagrams are both syntactically restricted (in order to guarantee a formal semantics), and enriched with a highly controlled natural language (to allow for modeling static and temporal constraints). Third, an automatic formal analysis phase iterates over the modeled requirements, by combining several, complementary techniques: checking consistency; verifying whether the

  9. Adobe Creative Suite 4 Bible

    CERN Document Server

    Padova, Ted

    2009-01-01

    As one of the few books to cover integration and workflow issues between Photoshop, Illustrator, InDesign, GoLive, Acrobat, and Version Cue, this comprehensive reference is the one book that Creative Suite users need; Two well-known and respected authors cover topics such as developing consistent color-managed workflows, moving files among the Creative Suite applications, preparing files for print or the Web, repurposing documents, and using the Creative Suite with Microsoft Office documents; More than 1,200 pages are packed with valuable advice and techniques for tackling common everyday issu

  10. Diagnostic Methods of Helicobacter pylori Infection for Epidemiological Studies: Critical Importance of Indirect Test Validation

    Directory of Open Access Journals (Sweden)

    Muhammad Miftahussurur

    2016-01-01

    Full Text Available Among the methods developed to detect H. pylori infection, determining the gold standard remains debatable, especially for epidemiological studies. Due to the decreasing sensitivity of direct diagnostic tests (histopathology and/or immunohistochemistry [IHC], rapid urease test [RUT], and culture, several indirect tests, including antibody-based tests (serology and urine test, urea breath test (UBT, and stool antigen test (SAT have been developed to diagnose H. pylori infection. Among the indirect tests, UBT and SAT became the best methods to determine active infection. While antibody-based tests, especially serology, are widely available and relatively sensitive, their specificity is low. Guidelines indicated that no single test can be considered as the gold standard for the diagnosis of H. pylori infection and that one should consider the method’s advantages and disadvantages. Based on four epidemiological studies, culture and RUT present a sensitivity of 74.2–90.8% and 83.3–86.9% and a specificity of 97.7–98.8% and 95.1–97.2%, respectively, when using IHC as a gold standard. The sensitivity of serology is quite high, but that of the urine test was lower compared with that of the other methods. Thus, indirect test validation is important although some commercial kits propose universal cut-off values.

  11. Critical evaluation and statistical validation of a hydroponic culture system for Arabidopsis thaliana.

    Science.gov (United States)

    Smeets, Karen; Ruytinx, Joske; Van Belleghem, Frank; Semane, Brahim; Lin, Dan; Vangronsveld, Jaco; Cuypers, Ann

    2008-02-01

    Arabidopsis thaliana is one of the most widely used model organisms in plant sciences. Because of the increasing knowledge in the understanding of its molecular pathways, a reproducible and stable growth set-up for obtaining uniform plants becomes more important. In order to be able to easily harvest and study both roots and shoots, and to allow simple exposure to water-soluble toxic substances, a hydroponic system is the desired cultivation method for controlled plant growth. Based on earlier developed hydroponic cultivation protocols, a hydroponic set-up was optimized and statistically validated using linear mixed-effects models. In order to determine important components that influence the level of variability in a hydroponic set-up, stress-related indicators were examined at the biochemical as well as at the molecular level. It is highly recommended that statistical as well as biological assumptions are carried out before post-analyses are performed. Therefore, we suggest a model where factors that influence variability such as the usage of different pots and harvesting on different times are taken into account in the analyses. Furthermore, in contrast to what has been reported in earlier studies, our findings indicate that continuous aeration of the hydroponic solution is highly important.

  12. Specification for the VERA Depletion Benchmark Suite

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Kang Seog [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2015-12-17

    CASL-X-2015-1014-000 iii Consortium for Advanced Simulation of LWRs EXECUTIVE SUMMARY The CASL neutronics simulator MPACT is under development for the neutronics and T-H coupled simulation for the pressurized water reactor. MPACT includes the ORIGEN-API and internal depletion module to perform depletion calculations based upon neutron-material reaction and radioactive decay. It is a challenge to validate the depletion capability because of the insufficient measured data. One of the detoured methods to validate it is to perform a code-to-code comparison for benchmark problems. In this study a depletion benchmark suite has been developed and a detailed guideline has been provided to obtain meaningful computational outcomes which can be used in the validation of the MPACT depletion capability.

  13. Satellite Ocean Heat Content Suite

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This collection contains an operational Satellite Ocean Heat Content Suite (SOHCS) product generated by NOAA National Environmental Satellite, Data, and Information...

  14. HPC Benchmark Suite NMx Project

    Data.gov (United States)

    National Aeronautics and Space Administration — In the phase II effort, Intelligent Automation Inc., (IAI) and University of Central Florida (UCF) propose to develop a comprehensive numerical test suite for...

  15. A Critical Review of Validation, Blind Testing, and Real- World Use of Alchemical Protein-Ligand Binding Free Energy Calculations.

    Science.gov (United States)

    Abel, Robert; Wang, Lingle; Mobley, David L; Friesner, Richard A

    2017-01-01

    Protein-ligand binding is among the most fundamental phenomena underlying all molecular biology, and a greater ability to more accurately and robustly predict the binding free energy of a small molecule ligand for its cognate protein is expected to have vast consequences for improving the efficiency of pharmaceutical drug discovery. We briefly reviewed a number of scientific and technical advances that have enabled alchemical free energy calculations to recently emerge as a preferred approach, and critically considered proper validation and effective use of these techniques. In particular, we characterized a selection bias effect which may be important in prospective free energy calculations, and introduced a strategy to improve the accuracy of the free energy predictions. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

  16. Detecting acute distress and risk of future psychological morbidity in critically ill patients: validation of the intensive care psychological assessment tool.

    Science.gov (United States)

    Wade, Dorothy M; Hankins, Matthew; Smyth, Deborah A; Rhone, Elijah E; Mythen, Michael G; Howell, David C J; Weinman, John A

    2014-09-24

    The psychological impact of critical illness on a patient can be severe, and frequently results in acute distress as well as psychological morbidity after leaving hospital. A UK guideline states that patients should be assessed in critical care units, both for acute distress and risk of future psychological morbidity; but no suitable method for carrying out this assessment exists. The Intensive care psychological assessment tool (IPAT) was developed as a simple, quick screening tool to be used routinely to detect acute distress, and the risk of future psychological morbidity, in critical care units. A validation study of IPAT was conducted in the critical care unit of a London hospital. Once un-sedated, orientated and alert, critical care patients were assessed with the IPAT and validated tools for distress, to determine the IPAT's concurrent validity. Fifty six patients took IPAT again to establish test-retest reliability. Finally, patients completed posttraumatic stress disorder (PTSD), depression and anxiety questionnaires at three months, to determine predictive validity of the IPAT. One hundred and sixty six patients completed the IPAT, and 106 completed follow-up questionnaires at 3 months. Scale analysis showed IPAT was a reliable 10-item measure of critical care-related psychological distress. Test-retest reliability was good (r =0.8). There was good concurrent validity with measures of anxiety and depression (r =0.7, P psychological morbidity was good (r =0.4, P psychological morbidity (AUC =0.7). The IPAT was found to have good reliability and validity. Sensitivity and specificity analysis suggest the IPAT could provide a way of allowing staff to assess psychological distress among critical care patients after further replication and validation. Further work is also needed to determine its utility in predicting future psychological morbidity.

  17. Technical Reference Suite Addressing Challenges of Providing Assurance for Fault Management Architectural Design

    Science.gov (United States)

    Fitz, Rhonda; Whitman, Gerek

    2016-01-01

    Research into complexities of software systems Fault Management (FM) and how architectural design decisions affect safety, preservation of assets, and maintenance of desired system functionality has coalesced into a technical reference (TR) suite that advances the provision of safety and mission assurance. The NASA Independent Verification and Validation (IV&V) Program, with Software Assurance Research Program support, extracted FM architectures across the IV&V portfolio to evaluate robustness, assess visibility for validation and test, and define software assurance methods applied to the architectures and designs. This investigation spanned IV&V projects with seven different primary developers, a wide range of sizes and complexities, and encompassed Deep Space Robotic, Human Spaceflight, and Earth Orbiter mission FM architectures. The initiative continues with an expansion of the TR suite to include Launch Vehicles, adding the benefit of investigating differences intrinsic to model-based FM architectures and insight into complexities of FM within an Agile software development environment, in order to improve awareness of how nontraditional processes affect FM architectural design and system health management. The identification of particular FM architectures, visibility, and associated IV&V techniques provides a TR suite that enables greater assurance that critical software systems will adequately protect against faults and respond to adverse conditions. Additionally, the role FM has with regard to strengthened security requirements, with potential to advance overall asset protection of flight software systems, is being addressed with the development of an adverse conditions database encompassing flight software vulnerabilities. Capitalizing on the established framework, this TR suite provides assurance capability for a variety of FM architectures and varied development approaches. Research results are being disseminated across NASA, other agencies, and the

  18. Improving measurement in nutrition literacy research using Rasch modelling: examining construct validity of stage-specific 'critical nutrition literacy' scales.

    Science.gov (United States)

    Guttersrud, Oystein; Dalane, Jorån Østerholt; Pettersen, Sverre

    2014-04-01

    Critical nutrition literacy (CNL), as an increasingly important area in public health nutrition, can be defined as the ability to critically analyse nutrition information, increase awareness and participate in action to address barriers to healthy eating behaviours. Far too little attention has been paid to establishing valid instruments for measuring CNL. The aim of the present study was to assess the appropriateness of utilizing the latent scales of a newly developed instrument assessing nursing students' 'engagement in dietary habits' (the 'engagement' scale) and their level of 'taking a critical stance towards nutrition claims and their sources' (the 'claims' scale). Data were gathered by distributing a nineteen-item paper-and-pencil self-report questionnaire to university colleges offering nursing education. The study had a cross-sectional design using Rasch analysis. Data management and analysis were performed using the software packages RUMM2030 and SPSS version 20. School personnel handed out the questionnaires. Four hundred and seventy-three students at ten university colleges across Norway responded (52% response rate). Disordered thresholds were rescored, an under-discriminating item was discarded and one item showing uniform differential item functioning was split. The assumption of item locations being differentiated by stages was strengthened. The analyses demonstrated possible dimension violations of local independence in the 'claims' scale data and the 'engagement' scale could have been better targeted. The study demonstrates the usefulness of Rasch analysis in assessing the psychometric properties of scales developed to measure CNL. Qualitative research designs could further improve our understanding of CNL scales.

  19. Development of Power Assisting Suit

    Science.gov (United States)

    Yamamoto, Keijiro; Ishii, Mineo; Hyodo, Kazuhito; Yoshimitsu, Toshihiro; Matsuo, Takashi

    In order to realize a wearable power assisting suit for assisting a nurse to carry a patient in her arms, the power supply and control systems of the suit have to be miniaturized, and it has to be wireless and pipeline-less. The new wearable suit consists of shoulders, arms, back, waist and legs units to be fitted on the nurse's body. The arms, waist and legs have new pneumatic rotary actuators driven directly by micro air pumps supplied by portable Ni-Cd batteries. The muscle forces are sensed by a new muscle hardness sensor utilizing a sensing tip mounted on a force sensing film device. An embedded microcomputer is used for the calculations of control signals. The new wearable suit was applied practically to a human body and a series of movement experiments that weights in the arms were held and taken up and down was performed. Each unit of the suit could transmit assisting torque directly to each joint verifying its practicability.

  20. The ZPIC educational code suite

    Science.gov (United States)

    Calado, R.; Pardal, M.; Ninhos, P.; Helm, A.; Mori, W. B.; Decyk, V. K.; Vieira, J.; Silva, L. O.; Fonseca, R. A.

    2017-10-01

    Particle-in-Cell (PIC) codes are used in almost all areas of plasma physics, such as fusion energy research, plasma accelerators, space physics, ion propulsion, and plasma processing, and many other areas. In this work, we present the ZPIC educational code suite, a new initiative to foster training in plasma physics using computer simulations. Leveraging on our expertise and experience from the development and use of the OSIRIS PIC code, we have developed a suite of 1D/2D fully relativistic electromagnetic PIC codes, as well as 1D electrostatic. These codes are self-contained and require only a standard laptop/desktop computer with a C compiler to be run. The output files are written in a new file format called ZDF that can be easily read using the supplied routines in a number of languages, such as Python, and IDL. The code suite also includes a number of example problems that can be used to illustrate several textbook and advanced plasma mechanisms, including instructions for parameter space exploration. We also invite contributions to this repository of test problems that will be made freely available to the community provided the input files comply with the format defined by the ZPIC team. The code suite is freely available and hosted on GitHub at https://github.com/zambzamb/zpic. Work partially supported by PICKSC.

  1. Author's Rights, Tout de Suite

    OpenAIRE

    Bailey, Jr., Charles W.

    2008-01-01

    Author's Rights, Tout de Suite is designed to give journal article authors a quick introduction to key aspects of author's rights and to foster further exploration of this topic through liberal use of relevant references to online documents and links to pertinent Web sites.

  2. Prospectively Validated Dosing Nomograms for Maximizing the Pharmacodynamics of Vancomycin Administered by Continuous Infusion in Critically Ill Patients▿

    Science.gov (United States)

    Pea, Federico; Furlanut, Mario; Negri, Camilla; Pavan, Federica; Crapis, Massimo; Cristini, Francesco; Viale, Pierluigi

    2009-01-01

    The efficacy of vancomycin against methicillin-resistant Staphylococcus aureus (MRSA)-related infections has been called into question by recent findings of higher rates of failure of vancomycin treatment of infections caused by strains with high MICs. Continuous infusion may be the best way to maximize the time-dependent activity of vancomycin. The aim of this study was to create dosing nomograms in relation to different creatinine clearance (CLCr) estimates for use in daily clinical practice to target the steady-state concentrations (Csss) of vancomycin during continuous infusion at 15 to 20 mg/liter (after the administration of an initial loading dose of 15 mg/kg of body weight over 2 h). The correlation between vancomycin clearance (CLv) and CLCr was retrospectively assessed in a cohort of critically ill patients (group 1, n = 70) to create a formula for dosage calculation to target Css at 15 mg/liter. The performance of this formula was prospectively validated in a similar cohort (group 2, n = 63) by comparison of the observed and the predicted Csss. A significant relationship between CLv and CLCr was observed in group 1 (P < 0.001). The application of the calculated formula to vancomycin dosing in group 2 {infusion rate (g/24 h) = [0.029 × CLCr (ml/min) + 0.94] × target Css × (24/1,000)} led to a significant correlation between the observed and the predicted Csss (r = 0.80, P < 0.001). Two dosing nomograms based on CLCr were created to target the vancomycin Css at 15 and 20 mg/liter in critically ill patients. These nomograms could be helpful in improving the vancomycin treatment of MRSA infections, especially in the presence of borderline-susceptible pathogens and/or of pathophysiological conditions which may enhance the clearance of vancomycin, while potentially avoiding the increased risk of nephrotoxicity observed with the use of high intermittent doses of vancomycin. PMID:19223642

  3. Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients.

    Science.gov (United States)

    Ameloot, K; Van De Vijver, K; Van Regenmortel, N; De Laet, I; Schoonheydt, K; Dits, H; Broch, O; Bein, B; Malbrain, M L

    2014-12-01

    Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure and cardiac output (CO) monitor based on finger arterial pulse contour analysis. We performed an open observational study in a mix of medical-surgical-burns critically ill patients (N.=45) to validate Nexfin obtained blood pressures (MAPnex) against PiCCO (MAPfem) derived blood pressure measurements. MAPnex, MAPfem and corresponding systolic (SBP) and diastolic (DBP) blood pressures were measured continuously and registered with a 2 hour interval during the 8-hour study period. Statistical analysis was performed by Pearson regression, Bland and Altman, Concordance plot and Polar plot analysis. MAPnex shows excellent correlation with MAPfem (R² 0.88, mean bias ± LA -2.3±12.4 mmHg, 14.7% error) and may be used interchangeably with invasive monitoring. The excellent MAPnex -MAPfem correlation was preserved in subgroup analysis for patients with severe hypotension, high systemic vascular resistance, low CO, hypothermia and in patients supported by inotropic/vasopressive agents. MAPnex is able to follow changes in MAPfem during the same time interval (level of concordance 85.5%). Nexfin SBP and DBP show significant correlation with PiCCO but the criteria for interchangeability were not met. Finally, polar plot analysis showed that trending capabilities were excellent when changes in MAPnex (ΔMAPnex) were compared to ΔMAPfem (96.1% of changes were within the level of 10% limits of agreement). In this sample of critically ill patients we found a good correlation between MAPnex and invasive blood pressures obtained by PiCCO.

  4. An integrated assessment instrument: Developing and validating instrument for facilitating critical thinking abilities and science process skills on electrolyte and nonelectrolyte solution matter

    Science.gov (United States)

    Astuti, Sri Rejeki Dwi; Suyanta, LFX, Endang Widjajanti; Rohaeti, Eli

    2017-05-01

    The demanding of assessment in learning process was impact by policy changes. Nowadays, assessment is not only emphasizing knowledge, but also skills and attitudes. However, in reality there are many obstacles in measuring them. This paper aimed to describe how to develop integrated assessment instrument and to verify instruments' validity such as content validity and construct validity. This instrument development used test development model by McIntire. Development process data was acquired based on development test step. Initial product was observed by three peer reviewer and six expert judgments (two subject matter experts, two evaluation experts and two chemistry teachers) to acquire content validity. This research involved 376 first grade students of two Senior High Schools in Bantul Regency to acquire construct validity. Content validity was analyzed used Aiken's formula. The verifying of construct validity was analyzed by exploratory factor analysis using SPSS ver 16.0. The result show that all constructs in integrated assessment instrument are asserted valid according to content validity and construct validity. Therefore, the integrated assessment instrument is suitable for measuring critical thinking abilities and science process skills of senior high school students on electrolyte solution matter.

  5. Validation and Verification (V&V) of Safety-Critical Systems Operating Under Off-Nominal Conditions

    Science.gov (United States)

    Belcastro, Christine M.

    2012-01-01

    Loss of control (LOC) remains one of the largest contributors to aircraft fatal accidents worldwide. Aircraft LOC accidents are highly complex in that they can result from numerous causal and contributing factors acting alone or more often in combination. Hence, there is no single intervention strategy to prevent these accidents. Research is underway at the National Aeronautics and Space Administration (NASA) in the development of advanced onboard system technologies for preventing or recovering from loss of vehicle control and for assuring safe operation under off-nominal conditions associated with aircraft LOC accidents. The transition of these technologies into the commercial fleet will require their extensive validation and verification (V&V) and ultimate certification. The V&V of complex integrated systems poses highly significant technical challenges and is the subject of a parallel research effort at NASA. This chapter summarizes the V&V problem and presents a proposed process that could be applied to complex integrated safety-critical systems developed for preventing aircraft LOC accidents. A summary of recent research accomplishments in this effort is referenced.

  6. Fatigue in chronically critically ill patients following intensive care - reliability and validity of the multidimensional fatigue inventory (MFI-20

    Directory of Open Access Journals (Sweden)

    Gloria-Beatrice Wintermann

    2018-02-01

    Full Text Available Abstract Background Fatigue often occurs as long-term complication in chronically critically ill (CCI patients after prolonged intensive care treatment. The Multidimensional Fatigue Inventory (MFI-20 has been established as valid instrument to measure fatigue in a wide range of medical illnesses. Regarding the measurement of fatigue in CCI patients, the psychometric properties of the MFI-20 have not been investigated so far. Thus, the present study examines reliability and validity of the MFI-20 in CCI patients. Methods A convenience sample of n = 195 patients with Critical Illness Polyneuropathy (CIP or Myopathy (CIM were recruited via personal contact within four weeks (t1 following the transfer from acute care ICU to post-acute ICU at a large rehabilitation hospital. N = 113 (median age 61.1 yrs., 72.6% men patients were again contacted via telephone three (t2 and six (t3 months following the transfer to post-acute ICU. The MFI-20, the Euro-Quality of Life (EQ-5D-3 L and the Structured Clinical Interview for the Diagnostic and Statistical Manual of mental disorders DSM-IV (SCID-I were applied within this prospective cohort study. Results The internal consistency Cronbach’s α was adequate for the MFI-total and all but the subscale Reduced Motivation (RM (range: .50–.91. Item-to-total correlations (range: .22–.80 indicated item redundancy for the subscale RM. Confirmatory Factor analyses (CFAs revealed poor model fit for the original 5-factor model of the MFI-20 (t2/t3, Confirmatory Fit Index, CFI = .783/ .834; Tucker-Lewis Index, TLI = .751/ .809; Root Mean Square Error of Approximation, RMSEA = .112/ .103. Among the alternative models (1-, 2-, 3-factor models, the data best fit to a 3-factor solution summarizing the highly correlated factors General −/ Physical Fatigue/ Reduced Activity (GF/ PF/ RA (t2/ t3, CFI = .878/ .896, TLI = .846/ .869, RMSEA = .089/ .085, 90% Confidence Interval .073–.104

  7. Virtual reality simulation training in a high-fidelity procedure suite

    DEFF Research Database (Denmark)

    Lönn, Lars; Edmond, John J; Marco, Jean

    2012-01-01

    To assess the face and content validity of a novel, full physics, full procedural, virtual reality simulation housed in a hybrid procedure suite.......To assess the face and content validity of a novel, full physics, full procedural, virtual reality simulation housed in a hybrid procedure suite....

  8. Application of Architectural Patterns and Lightweight Formal Method for the Validation and Verification of Safety Critical Systems

    Science.gov (United States)

    2013-09-01

    permission, created by NPS student Nahum Camacho Zamora for his class CS3021 Data Structures and Intermediate Programming, with modification to suit our...Author: Man-Tak Shing modified by Nahum Camacho Zamora // Naval Postgraduate School // Computer Science Department...Author: Man-Tak Shing modified by Nahum Camacho Zamora // Naval Postgraduate School // Computer Science Department // Date: 16 Feb

  9. Spinoff From a Moon Suit

    Science.gov (United States)

    1991-01-01

    Al Gross transferred expertise obtained as an ILC engineer for NASA's Apollo program to the manufacture of athletic shoes. Gross substituted DuPont's Hytrel plastic for foam materials in the shoe's midsole, eliminating cushioning loss caused by body weight. An external pressurized shell applied from space suit technology was incorporated into the shoe. Stiffness and cushioning properties of the midsole were "tuned" by varying material thickness and styling lines. A stress free "blow molding" process adapted from NASA space suit design was also utilized. The resulting compression chamber midsole performed well in tests. It allows AVIA to re-configure for specific sports and is a "first step" toward a durable, foamless, non-fatiguing midsole.

  10. Sensor Suits for Human Motion Detection

    Science.gov (United States)

    2006-02-18

    particularly the DARPA exoskeleton power suits. In this case, the sensor suit will be worn by the operator under the exoskeleton power suits. The sensor...controlling the power suit to accurately follow the operator’s motion intention. 14. SUBJECT TERMS Exoskeleton , Sensor suit, Muscle...1.Device for assisting grasping function using muscle stiffness sensor 2. Rehabilitation system of hand manipulation using optical fiber. 3

  11. Validation of the LOD score compared with APACHE II score in prediction of the hospital outcome in critically ill patients.

    Science.gov (United States)

    Khwannimit, Bodin

    2008-01-01

    The Logistic Organ Dysfunction score (LOD) is an organ dysfunction score that can predict hospital mortality. The aim of this study was to validate the performance of the LOD score compared with the Acute Physiology and Chronic Health Evaluation II (APACHE II) score in a mixed intensive care unit (ICU) at a tertiary referral university hospital in Thailand. The data were collected prospectively on consecutive ICU admissions over a 24 month period from July1, 2004 until June 30, 2006. Discrimination was evaluated by the area under the receiver operating characteristic curve (AUROC). The calibration was assessed by the Hosmer-Lemeshow goodness-of-fit H statistic. The overall fit of the model was evaluated by the Brier's score. Overall, 1,429 patients were enrolled during the study period. The mortality in the ICU was 20.9% and in the hospital was 27.9%. The median ICU and hospital lengths of stay were 3 and 18 days, respectively, for all patients. Both models showed excellent discrimination. The AUROC for the LOD and APACHE II were 0.860 [95% confidence interval (CI) = 0.838-0.882] and 0.898 (95% Cl = 0.879-0.917), respectively. The LOD score had perfect calibration with the Hosmer-Lemeshow goodness-of-fit H chi-2 = 10 (p = 0.44). However, the APACHE II had poor calibration with the Hosmer-Lemeshow goodness-of-fit H chi-2 = 75.69 (p LOD and APACHE II, respectively. Thus, the LOD score was found to be accurate for predicting hospital mortality for general critically ill patients in Thailand.

  12. The Chelsea critical care physical assessment tool (CPAx): validation of an innovative new tool to measure physical morbidity in the general adult critical care population; an observational proof-of-concept pilot study.

    Science.gov (United States)

    Corner, E J; Wood, H; Englebretsen, C; Thomas, A; Grant, R L; Nikoletou, D; Soni, N

    2013-03-01

    To develop a scoring system to measure physical morbidity in critical care - the Chelsea Critical Care Physical Assessment Tool (CPAx). The development process was iterative involving content validity indices (CVI), a focus group and an observational study of 33 patients to test construct validity against the Medical Research Council score for muscle strength, peak cough flow, Australian Therapy Outcome Measures score, Glasgow Coma Scale score, Bloomsbury sedation score, Sequential Organ Failure Assessment score, Short Form 36 (SF-36) score, days of mechanical ventilation and inter-rater reliability. Trauma and general critical care patients from two London teaching hospitals. Users of the CPAx felt that it possessed content validity, giving a final CVI of 1.00 (Pvalidation data showed moderate to strong significant correlations between the CPAx score and all secondary measures, apart from the mental component of the SF-36 which demonstrated weak correlation with the CPAx score (r=0.024, P=0.720). Reliability testing showed internal consistency of α=0.798 and inter-rater reliability of κ=0.988 (95% confidence interval 0.791 to 1.000) between five raters. This pilot work supports proof of concept of the CPAx as a measure of physical morbidity in the critical care population, and is a cogent argument for further investigation of the scoring system. Copyright © 2012 Chartered Society of Physiotherapy. Published by Elsevier Ltd. All rights reserved.

  13. Validation of the Monte Carlo criticality program KENO IV and the Hansen-Roach sixteen-energy-group-cross sections for high-assay uranium systems. [KENO IV criticality code

    Energy Technology Data Exchange (ETDEWEB)

    Handley, G. R.; Masters, L. C.; Stachowiak, R. V.

    1981-04-10

    Validation of the Monte Carlo criticality code, KENO IV, and the Hansen-Roach sixteen-energy-group cross sections was accomplished by calculating the effective neutron multiplication constant, k/sub eff/, of 29 experimentally critical assemblies which had uranium enrichments of 92.6% or higher in the uranium-235 isotope. The experiments were chosen so that a large variety of geometries and of neutron energy spectra were covered. Problems, calculating the k/sub eff/ of systems with high-uranium-concentration uranyl nitrate solution that were minimally reflected or unreflected, resulted in the separate examination of five cases.

  14. Test Suite Cooperative Framework on Software Quality

    Science.gov (United States)

    Liu, Zhenyu; Yang, Genxing; Cai, Lizhi

    Software testing has gradually played an important role in controlling the quality of software product. In this paper, we study the characteristics of test suites in software testing and analyze their structure. A novel test suite cooperative framework is presented for software testing based on the existing test suite. The framework can analyze different test suites with ontology and taxonomy, and help cooperation among the test suites to some extent. A tool has been developed with .NET platform to meet the requirements of designing cooperative test suite in software testing projects.

  15. Talking Back to the Media Ideal: The Development and Validation of the Critical Processing of Beauty Images Scale

    Science.gov (United States)

    Engeln-Maddox, Renee; Miller, Steven A.

    2008-01-01

    This article details the development of the Critical Processing of Beauty Images Scale (CPBI) and studies demonstrating the psychometric soundness of this measure. The CPBI measures women's tendency to engage in critical processing of media images featuring idealized female beauty. Three subscales were identified using exploratory factor analysis…

  16. Critical analysis of several analytical method validation strategies in the framework of the fit for purpose concept.

    Science.gov (United States)

    Bouabidi, A; Rozet, E; Fillet, M; Ziemons, E; Chapuzet, E; Mertens, B; Klinkenberg, R; Ceccato, A; Talbi, M; Streel, B; Bouklouze, A; Boulanger, B; Hubert, Ph

    2010-05-07

    Analytical method validation is a mandatory step at the end of the development in all analytical laboratories. It is a highly regulated step of the life cycle of a quantitative analytical method. However, even if some documents have been published there is a lack of clear guidance for the methodology to follow to adequately decide when a method can be considered as valid. This situation has led to the availability of several methodological approaches and it is therefore the responsibility of the analyst to choose the best one. The classical decision processes encountered during method validation evaluation are compared, namely the descriptive, difference and equivalence approaches. Furthermore a validation approach using accuracy profile computed by means of beta-expectation tolerance interval and total measurement error is also available. In the present paper all of these different validation approaches were applied to the validation of two analytical methods. The evaluation of the producer and consumer risks by Monte Carlo simulations were also made in order to compare the appropriateness of these various approaches. The classical methodologies give rise to inadequate and contradictory conclusions which do not allow them to answer adequately the objective of method validation, i.e. to give enough guarantees that each of the future results that will be generated by the method during routine use will be close enough to the true value. It is found that the validation methodology which gives the most guarantees with regards to the reliability or adequacy of the decision to consider a method as valid is the one based on the use of the accuracy profile. Copyright (c) 2009 Elsevier B.V. All rights reserved.

  17. Are chiropractic tests for the lumbo-pelvic spine reliable and valid? A systematic critical literature review

    DEFF Research Database (Denmark)

    Hestbaek, L; Leboeuf-Yde, C

    2000-01-01

    . Documentation of applied kinesiology was not available. Palpation for muscle tension, palpation for misalignment, and visual inspection were either undocumented, unreliable, or not valid. CONCLUSION: The detection of the manipulative lesion in the lumbo-pelvic spine depends on valid and reliable tests. Because......OBJECTIVE: To systematically review the peer-reviewed literature about the reliability and validity of chiropractic tests used to determine the need for spinal manipulative therapy of the lumbo-pelvic spine, taking into account the quality of the studies. DATA SOURCES: The CHIROLARS database...... such tests have not been established, the presence of the manipulative lesion remains hypothetical. Great effort is needed to develop, establish, and enforce valid and reliable test procedures....

  18. The process of processing: exploring the validity of Neisser's perceptual cycle model with accounts from critical decision-making in the cockpit.

    Science.gov (United States)

    Plant, Katherine L; Stanton, Neville A

    2015-01-01

    The perceptual cycle model (PCM) has been widely applied in ergonomics research in domains including road, rail and aviation. The PCM assumes that information processing occurs in a cyclical manner drawing on top-down and bottom-up influences to produce perceptual exploration and actions. However, the validity of the model has not been addressed. This paper explores the construct validity of the PCM in the context of aeronautical decision-making. The critical decision method was used to interview 20 helicopter pilots about critical decision-making. The data were qualitatively analysed using an established coding scheme, and composite PCMs for incident phases were constructed. It was found that the PCM provided a mutually exclusive and exhaustive classification of the information-processing cycles for dealing with critical incidents. However, a counter-cycle was also discovered which has been attributed to skill-based behaviour, characteristic of experts. The practical applications and future research questions are discussed. Practitioner Summary: This paper explores whether information processing, when dealing with critical incidents, occurs in the manner anticipated by the perceptual cycle model. In addition to the traditional processing cycle, a reciprocal counter-cycle was found. This research can be utilised by those who use the model as an accident analysis framework.

  19. Miniature Sensor Probe for O2, CO2, and H2O Monitoring in Space Suits Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Advanced space suit technologies require lightweight, low-power, durable sensors for monitoring critical life support constituents. Current technology cannot provide...

  20. The BRITNeY Suite Animation Tool

    DEFF Research Database (Denmark)

    Westergaard, Michael; Lassen, Kristian Bisgaard

    2006-01-01

    This paper describes the BRITNeY suite, a tool which enables users to create visualizations of formal models. BRITNeY suite is integrated with CPN Tools, and we give an example of how to extend a simple stop-and-wait protocol with a visualization in the form of message sequence charts. We also show...... examples of animations created during industrial projects to give an impression of what is possible with the BRITNeY suite....

  1. Higher Order Thinking in the Australian Army Suite of Logistic Officer Courses

    National Research Council Canada - National Science Library

    Bradford, Scott R

    2006-01-01

    .... The current Suite of Logistic Officer Courses (SOLOC) has been recently criticized for failing to meet this requirement, with the general perception that there is a distinct lack of higher-order thinking competencies within this continuum...

  2. Immersion Suit Flotation Testing REACT Report

    Science.gov (United States)

    2016-08-01

    COAST GUARD STOP 7501 2703 MARTIN LUTHER KING JR AVE SE WASHINGTON, DC 20593 13. Type of Report & Period Covered Final 14. Sponsoring Agency...had the suited mannequin on the outfitting bench , they recognized that the angle for the immersion suit harness clip to the bottom of the buoy would

  3. Sibelius. Karelia Suite, Op. 11 / Robert Layton

    Index Scriptorium Estoniae

    Layton, Robert

    1996-01-01

    Uuest heliplaadist "Sibelius. Karelia Suite, Op. 11. Luonnotar, Op. 70 a. Andante festivo. The Oceanides, Op. 73. King Christian II, Op. 27-Suite. Finlandia, Op. 26a. Gothenburg Symphony Orchester, Neeme Järvi" DG 447 760-2GH (72 minutes: DDD)

  4. 46 CFR 169.551 - Exposure suits.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Exposure suits. 169.551 Section 169.551 Shipping COAST... and Firefighting Equipment Additional Lifesaving Equipment § 169.551 Exposure suits. (a) This section applies to each vessel operating in exposed or partially protected waters service except those— (1...

  5. Variable Vector Countermeasure Suit (V2Suit) for Space Habitation and Exploration Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The “Variable Vector Countermeasure Suit (V2Suit) for Space Habitation and Exploration” is a visionary system concept that will revolutionize space...

  6. Variable Vector Countermeasure Suit (V2Suit) for Space Habitation and Exploration Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The Variable Vector Countermeasure Suit (V2Suit) is a specialized spacesuit designed to keep astronauts healthy during long-duration space exploration missions and...

  7. When Eating Right, Is Measured Wrong! A Validation and Critical Examination of the ORTO-15 Questionnaire in German.

    Directory of Open Access Journals (Sweden)

    Benjamin Missbach

    Full Text Available The characteristic trait of individuals developing a pathological obsession and preoccupation with healthy foods and a restrictive and avoidant eating behavior is described as orthorexia nervosa (ON. For ON, neither universal diagnosis criteria nor valid tools for large-scale epidemiologic assessment are available in the literature. The aim of the current study is to analyze the psychometric properties of a translated German version of the ORTO-15 questionnaire. The German version of the ORTO-15, a eating behavior and dieting habits questionnaire were completed by 1029 German-speaking participants (74.6% female aged between 19 and 70 years (M = 31.21 ± 10.43 years. Our results showed that after confirmatory factor analysis, the best fitting model of the original version is a single-factor structure (9-item shortened version: ORTO-9-GE. The final model showed only moderate internal consistency (Cronbach's alpha = .67, even after omitting 40% of the original question. A total of 69.1% participants showed orthorectic tendencies. Orthorectic tendencies are associated with special eating behavior features (dieting frequency, vegetarian and vegan diet. Education level did not influence ON tendency and nutritional students did not show higher ON tendency compared to students from other disciplines. This study is the first attempt to translate and to evaluate the psychometric properties of a German version of the ORTO-15 questionnaire. The ORTO-9-GE questionnaire, however, is only a mediocre tool for assessing orthorectic tendencies in individuals and shows moderate reliability and internal consistency. Our research suggests, that future studies are needed to provide more reliable and valid assessment tools to investigate orthorexia nervosa.

  8. When Eating Right, Is Measured Wrong! A Validation and Critical Examination of the ORTO-15 Questionnaire in German

    Science.gov (United States)

    Missbach, Benjamin; Hinterbuchinger, Barbara; Dreiseitl, Verena; Zellhofer, Silvia; Kurz, Carina; König, Jürgen

    2015-01-01

    The characteristic trait of individuals developing a pathological obsession and preoccupation with healthy foods and a restrictive and avoidant eating behavior is described as orthorexia nervosa (ON). For ON, neither universal diagnosis criteria nor valid tools for large-scale epidemiologic assessment are available in the literature. The aim of the current study is to analyze the psychometric properties of a translated German version of the ORTO-15 questionnaire. The German version of the ORTO-15, a eating behavior and dieting habits questionnaire were completed by 1029 German-speaking participants (74.6% female) aged between 19 and 70 years (M = 31.21 ± 10.43 years). Our results showed that after confirmatory factor analysis, the best fitting model of the original version is a single-factor structure (9-item shortened version: ORTO-9-GE). The final model showed only moderate internal consistency (Cronbach’s alpha = .67), even after omitting 40% of the original question. A total of 69.1% participants showed orthorectic tendencies. Orthorectic tendencies are associated with special eating behavior features (dieting frequency, vegetarian and vegan diet). Education level did not influence ON tendency and nutritional students did not show higher ON tendency compared to students from other disciplines. This study is the first attempt to translate and to evaluate the psychometric properties of a German version of the ORTO-15 questionnaire. The ORTO-9-GE questionnaire, however, is only a mediocre tool for assessing orthorectic tendencies in individuals and shows moderate reliability and internal consistency. Our research suggests, that future studies are needed to provide more reliable and valid assessment tools to investigate orthorexia nervosa. PMID:26280449

  9. Psychometric validation of the behavioral indicators of pain scale for the assessment of pain in mechanically ventilated and unable to self-report critical care patients.

    Science.gov (United States)

    Latorre-Marco, I; Acevedo-Nuevo, M; Solís-Muñoz, M; Hernández-Sánchez, L; López-López, C; Sánchez-Sánchez, M M; Wojtysiak-Wojcicka, M; de Las Pozas-Abril, J; Robleda-Font, G; Frade-Mera, M J; De Blas-García, R; Górgolas-Ortiz, C; De la Figuera-Bayón, J; Cavia-García, C

    2016-11-01

    To assess the psychometric properties of the behavioral indicators of pain scale (ESCID) when applied to a wide range of medical and surgical critical patients. A multicentre, prospective observational study was designed to validate a scale measuring instrument. Twenty Intensive Care Units of 14 hospitals belonging to the Spanish National Health System. A total of 286 mechanically ventilated, unable to self-report critically ill medical and surgical adult patients. Pain levels were measured by two independent evaluators simultaneously, using two scales: ESCID and the behavioral pain scale (BPS). Pain was observed before, during, and after two painful procedures (turning, tracheal suctioning) and one non-painful procedure. ESCID reliability was measured on the basis of internal consistency using the Cronbach-α coefficient. Inter-rater and intra-rater agreement were measured. The Spearman correlation coefficient was used to assess the correlation between ESCID and BPS. A total of 4386 observations were made in 286 patients (62% medical and 38% surgical). High correlation was found between ESCID and BPS (r=0.94-0.99; p<0.001), together with high intra-rater and inter-rater concordance. ESCID was internally reliable, with a Cronbach-α value of 0.85 (95%CI 0.81-0.88). Cronbach-α coefficients for ESCID domains were high: facial expression 0.87 (95%CI 0.84-0.89), calmness 0.84 (95%CI 0.81-0.87), muscle tone 0.80 (95%CI 0.75-0.84), compliance with mechanical ventilation 0.70 (95%CI 0.63-0.75) and consolability 0.85 (95%CI 0.81-0.88). ESCID is valid and reliable for measuring pain in mechanically ventilated unable to self-report medical and surgical critical care patients. CLINICALTRIALS.GOV: NCT01744717. Copyright © 2016 The Authors. Publicado por Elsevier España, S.L.U. All rights reserved.

  10. Z-1 Prototype Space Suit Testing Summary

    Science.gov (United States)

    Ross, Amy

    2013-01-01

    The Advanced Space Suit team of the NASA-Johnson Space Center performed a series of test with the Z-1 prototype space suit in 2012. This paper discusses, at a summary level, the tests performed and results from those tests. The purpose of the tests were two-fold: 1) characterize the suit performance so that the data could be used in the downselection of components for the Z-2 Space Suit and 2) develop interfaces with the suitport and exploration vehicles through pressurized suit evaluations. Tests performed included isolated and functional range of motion data capture, Z-1 waist and hip testing, joint torque testing, CO2 washout testing, fit checks and subject familiarizations, an exploration vehicle aft deck and suitport controls interface evaluation, delta pressure suitport tests including pressurized suit don and doff, and gross mobility and suitport ingress and egress demonstrations in reduced gravity. Lessons learned specific to the Z-1 prototype and to suit testing techniques will be presented.

  11. Oracle SOA Suite 11g performance cookbook

    CERN Document Server

    Brasier, Matthew; Wright, Nicholas

    2013-01-01

    This is a Cookbook with interesting, hands-on recipes, giving detailed descriptions and lots of practical walkthroughs for boosting the performance of your Oracle SOA Suite.This book is for Oracle SOA Suite 11g administrators, developers, and architects who want to understand how they can maximise the performance of their SOA Suite infrastructure. The recipes contain easy to follow step-by-step instructions and include many helpful and practical tips. It is suitable for anyone with basic operating system and application server administration experience.

  12. GRUP PERMUTASI SIKLIS DALAM PERMAINAN SUIT

    Directory of Open Access Journals (Sweden)

    Bagus Ardi Saputro

    2012-09-01

    Full Text Available Makalah ini merupakan kajian konsep grup permutasi dalam sebuah permainan suit. Grup permuatasi yang terdapat dalam permainan suit adalah grup permutasi yang siklis. Penyajian grup menggunakan permainan dalam pembelajaran aljabar abstrak dapat dilakukan guna meningkatkan minat mahasiswa dan memberikan pemahaman yang mendalam tentang konsep grup.   Kata Kunci: Permainan, Grup, Aljabar, Siklis, Permutasi     This paper is a study of the concept of a permutation group in a game suit. Grup permuatasi contained in the suit game is a cyclic permutation group. Presentation of the group using games in learning abstract algebra can be done to increase student interest and provide a deep understanding of the concept of the group.   Keywords: Games, Groups, Algebra, Cyclical, Permutations

  13. Strauss: Der Rosenkavalier - Suite / Michael Kennedy

    Index Scriptorium Estoniae

    Kennedy, Michael

    1990-01-01

    Uuest heliplaadist "Strauss: Der Rosenkavalier - Suite, Salome-Dance of the seven veils, Capriccio-Prelude, Intermezzo, Morgen Mittag um elf! Felicity Lott, Scottish National Orchestra, Neeme Järvi" Chandos ABRD 1397. ABTD 1397. CHAN 8758

  14. Sensor Suits for Human Motion Detection

    National Research Council Canada - National Science Library

    Feng, Maria Q

    2006-01-01

    ... shape, the stiffness and the density. This sensor suit is made of soft and elastic fabrics embedded with arrays of MEMS sensors such as muscle stiffness sensor, ultrasonic sensors, accelerometers and optical fiber sensors, to measure...

  15. The ESA's Space Trajectory Analysis software suite

    Science.gov (United States)

    Ortega, Guillermo

    The European Space Agency (ESA) initiated in 2005 an internal activity to develop an open source software suite involving university science departments and research institutions all over the world. This project is called the "Space Trajectory Analysis" or STA. This article describes the birth of STA and its present configuration. One of the STA aims is to promote the exchange of technical ideas, and raise knowledge and competence in the areas of applied mathematics, space engineering, and informatics at University level. Conceived as a research and education tool to support the analysis phase of a space mission, STA is able to visualize a wide range of space trajectories. These include among others ascent, re-entry, descent and landing trajectories, orbits around planets and moons, interplanetary trajectories, rendezvous trajectories, etc. The article explains that STA project is an original idea of the Technical Directorate of ESA. It was born in August 2005 to provide a framework in astrodynamics research at University level. As research and education software applicable to Academia, a number of Universities support this development by joining ESA in leading the development. ESA and Universities partnership are expressed in the STA Steering Board. Together with ESA, each University has a chair in the board whose tasks are develop, control, promote, maintain, and expand the software suite. The article describes that STA provides calculations in the fields of spacecraft tracking, attitude analysis, coverage and visibility analysis, orbit determination, position and velocity of solar system bodies, etc. STA implements the concept of "space scenario" composed of Solar system bodies, spacecraft, ground stations, pads, etc. It is able to propagate the orbit of a spacecraft where orbital propagators are included. STA is able to compute communication links between objects of a scenario (coverage, line of sight), and to represent the trajectory computations and

  16. Development, Validation and Application of a Novel Method for Estimating the Thermal Conductance of Critical Interfaces in the Jaws of the LHC Collimation System

    CERN Document Server

    Leitao, I V

    2013-01-01

    The motivation for this project arises from the difficulty in quantifying the manufacturing quality of critical interfaces in the water cooled jaws of the TCTP and TCSP (Target Collimator Tertiary Pickup and Target Collimator Secondary Pickup) collimators. These interfaces play a decisive role in the transfer of heat deposited by the beam towards the cooling system avoiding excessive deformation of the collimator. Therefore, it was necessary to develop a non-destructive method that provides an estimation of the thermal conductance during the acceptance test of the TCTP and TCSP jaws. The method is based on experimental measurements of temperature evolution and numerical simulations. By matching experimental and numerical results it is possible to estimate the thermal conductance in several sections of the jaw. A simplified experimental installation was built to validate the method, then a fully automatic Test-Bench was developed and built for the future acceptance of the TCTP/TCSP jaws which will be manufactu...

  17. Verification of MCNP6.2 for Nuclear Criticality Safety Applications

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Forrest B. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Rising, Michael Evan [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Alwin, Jennifer Louise [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-05-10

    Several suites of verification/validation benchmark problems were run in early 2017 to verify that the new production release of MCNP6.2 performs correctly for nuclear criticality safety applications (NCS). MCNP6.2 results for several NCS validation suites were compared to the results from MCNP6.1 [1] and MCNP6.1.1 [2]. MCNP6.1 is the production version of MCNP® released in 2013, and MCNP6.1.1 is the update released in 2014. MCNP6.2 includes all of the standard features for NCS calculations that have been available for the past 15 years, along with new features for sensitivity-uncertainty based methods for NCS validation [3]. Results from the benchmark suites were compared with results from previous verification testing [4-8]. Criticality safety analysts should consider testing MCNP6.2 on their particular problems and validation suites. No further development of MCNP5 is planned. MCNP6.1 is now 4 years old, and MCNP6.1.1 is now 3 years old. In general, released versions of MCNP are supported only for about 5 years, due to resource limitations. All future MCNP improvements, bug fixes, user support, and new capabilities are targeted only to MCNP6.2 and beyond.

  18. Validation of the Work Observation Method By Activity Timing (WOMBAT method of conducting time-motion observations in critical care settings: an observational study

    Directory of Open Access Journals (Sweden)

    Gibney RT Noel

    2011-05-01

    Full Text Available Abstract Background Electronic documentation handling may facilitate information flows in health care settings to support better coordination of care among Health Care Providers (HCPs, but evidence is limited. Methods that accurately depict changes to the workflows of HCPs are needed to assess whether the introduction of a Critical Care clinical Information System (CCIS to two Intensive Care Units (ICUs represents a positive step for patient care. To evaluate a previously described method of quantifying amounts of time spent and interruptions encountered by HCPs working in two ICUs. Methods Observers used PDAs running the Work Observation Method By Activity Timing (WOMBAT software to record the tasks performed by HCPs in advance of the introduction of a Critical Care clinical Information System (CCIS to quantify amounts of time spent on tasks and interruptions encountered by HCPs in ICUs. Results We report the percentages of time spent on each task category, and the rates of interruptions observed for physicians, nurses, respiratory therapists, and unit clerks. Compared with previously published data from Australian hospital wards, interdisciplinary information sharing and communication in ICUs explain higher proportions of time spent on professional communication and documentation by nurses and physicians, as well as more frequent interruptions which are often followed by professional communication tasks. Conclusions Critical care workloads include requirements for timely information sharing and communication and explain the differences we observed between the two datasets. The data presented here further validate the WOMBAT method, and support plans to compare workflows before and after the introduction of electronic documentation methods in ICUs.

  19. [Validation of the Scale of Behavior Indicators of Pain (ESCID) in critically ill, non-communicative patients under mechanical ventilation: results of the ESCID scale].

    Science.gov (United States)

    Latorre Marco, I; Solís Muñoz, M; Falero Ruiz, T; Larrasquitu Sánchez, A; Romay Pérez, A B; Millán Santos, I

    2011-01-01

    To determine the reliability and validity of the "Scale of Behavior Indicators of Pain" (Escala de Conductas Indicadoras de Dolor: ESCID) as a tool to assess pain in the critically ill, non-communicative patients with mechanical ventilation. An observational study of development and validation of this scale as an instrument for pain measurement in ICU patients over 18 years of age, who are uncommunicative and under mechanical ventilation. Their pain was assessed with the Behavioral Pain Scale (BPS) and the ESCID simultaneously, by two independent observers, when the painful maneuvers (PM), secretion aspiration and mobilization, were applied. Measurements were obtained before, during and after the PM. A descriptive analysis of the general characteristics of the population was carried out. The reliability of the ESCID was measured through the internal consistency of each item using Cronbach's alpha. Intraobserver and interobserver concordance was measured with the repeated measurements analysis of variance test. The components of the two pain scales were compared to obtain the change between the results obtained based on time, observer and procedure. The correlation between the scales was measured with the Pearson's correlation. A total of 480 observations were obtained in 42 patients, 62% were males; age 57.33 ± 16.35 years. The most frequent ICU admission was due to infectious disease (36%) and neurological disease (35%). Glasgow Coma Scale 8.45±1.2 and Richmond Agitation-Sedation Scale -2.55±1.5. Arterial blood pressure, heart rate and respiratory rate remained stable. Cronbach's s Alpha Coefficient for ESCID ranged from 0.70-0.80. There is a good correlation between the ESCID and BPS in the three measurement points in time: Pearson's correlation: before 0.97, during 0.94 and after 0.95. ESCID is a reliable and valid tool to assess pain in critically ill, non-communicative patients under mechanical ventilation. Copyright © 2010 Elsevier España, S.L. y SEEIUC

  20. [Disease-specific Questionnaire for Quality of Life in Patients with Peripheral Arterial Occlusive Disease in the Stage of Critical Ischemia (FLeQKI)--methodical development of a specific measuring instrument and psychometric evaluation of its validity and reliability (Part 1)].

    Science.gov (United States)

    Wohlgemuth, W A; Olbricht, W; Klarmann, S; Engelhardt, M; Freitag, M H; Wölfle, K; Bohndorf, K; Kirchhof, K

    2007-12-01

    To develop a disease-specific measuring instrument for quality of life in German-speaking patients with peripheral arterial occlusive disease in the stage of critical ischemia and to test it in a prospective study for validity and reliability. We developed a questionnaire compiling items representing subjective disease relevant health states. With 35 of these items, we designed the scales comorbidity (KO), physical pain (SZ), physical functioning (KF), physical state (KS), social functioning (SB), mental health (PB), and therapy-induced limitations (TE). Each item was to be valued as never, seldom, often or always. The scales were standardized with a control group of 40 individuals without peripheral arterial occlusive disease who were interviewed twice in an interval of 6 months using both the FLeQKI and the Medical Outcomes Study Group Short Form 36 (SF-36). Convergent and discriminative validity was determined in 65 consecutive in-patients with peripheral occlusive arterial disease in the stage of critical ischemia who were interviewed with FLeQKI and SF-36 prior to percutaneous transluminal angioplasty (PTA) or bypass operation and 1 month and 6 months after. The internal consistency and test-retest reliability of the FLeQKI were determined in the control group. For statistical analysis, Cronbach's alpha Test and Pearsons Product Moment Correlation were used. The control group consisted of 21 men and 19 women with an age of 73.4+/-7.8, and the treatment group was comprised of 35 men and 30 women with an age of 75.1+/-7.0. In the treatment group, convergent validity reached high values in the scales SB, KF, PB, and SZ (r=0.41-0.70). With their discriminative validity (r=-0.04-0.30), TE and KS were independent, specific dimensions of life quality. The control group showed good values for internal consistency (Cronbach's alpha=0.54-0.93) and for test-retest reliability (r=0.44-0.96). The FLeQKI is well suited for determining the specific impairments of life

  1. Advanced EVA Suit Camera System Development Project

    Science.gov (United States)

    Mock, Kyla

    2016-01-01

    The National Aeronautics and Space Administration (NASA) at the Johnson Space Center (JSC) is developing a new extra-vehicular activity (EVA) suit known as the Advanced EVA Z2 Suit. All of the improvements to the EVA Suit provide the opportunity to update the technology of the video imagery. My summer internship project involved improving the video streaming capabilities of the cameras that will be used on the Z2 Suit for data acquisition. To accomplish this, I familiarized myself with the architecture of the camera that is currently being tested to be able to make improvements on the design. Because there is a lot of benefit to saving space, power, and weight on the EVA suit, my job was to use Altium Design to start designing a much smaller and simplified interface board for the camera's microprocessor and external components. This involved checking datasheets of various components and checking signal connections to ensure that this architecture could be used for both the Z2 suit and potentially other future projects. The Orion spacecraft is a specific project that may benefit from this condensed camera interface design. The camera's physical placement on the suit also needed to be determined and tested so that image resolution can be maximized. Many of the options of the camera placement may be tested along with other future suit testing. There are multiple teams that work on different parts of the suit, so the camera's placement could directly affect their research or design. For this reason, a big part of my project was initiating contact with other branches and setting up multiple meetings to learn more about the pros and cons of the potential camera placements we are analyzing. Collaboration with the multiple teams working on the Advanced EVA Z2 Suit is absolutely necessary and these comparisons will be used as further progress is made for the overall suit design. This prototype will not be finished in time for the scheduled Z2 Suit testing, so my time was

  2. Z-2 Prototype Space Suit Development

    Science.gov (United States)

    Ross, Amy; Rhodes, Richard; Graziosi, David; Jones, Bobby; Lee, Ryan; Haque, Bazle Z.; Gillespie, John W., Jr.

    2014-01-01

    NASA's Z-2 prototype space suit is the highest fidelity pressure garment from both hardware and systems design perspectives since the Space Shuttle Extravehicular Mobility Unit (EMU) was developed in the late 1970's. Upon completion the Z-2 will be tested in the 11 foot human-rated vacuum chamber and the Neutral Buoyancy Laboratory (NBL) at the NASA Johnson Space Center to assess the design and to determine applicability of the configuration to micro-, low- (asteroid), and planetary- (surface) gravity missions. This paper discusses the 'firsts' that the Z-2 represents. For example, the Z-2 sizes to the smallest suit scye bearing plane distance for at least the last 25 years and is being designed with the most intensive use of human models with the suit model.

  3. EVA Suit Microbial Leakage Investigation Project

    Science.gov (United States)

    Falker, Jay; Baker, Christopher; Clayton, Ronald; Rucker, Michelle

    2016-01-01

    The objective of this project is to collect microbial samples from various EVA suits to determine how much microbial contamination is typically released during simulated planetary exploration activities. Data will be released to the planetary protection and science communities, and advanced EVA system designers. In the best case scenario, we will discover that very little microbial contamination leaks from our current or prototype suit designs, in the worst case scenario, we will identify leak paths, learn more about what affects leakage--and we'll have a new, flight-certified swab tool for our EVA toolbox.

  4. A Molecular Host Response Assay to Discriminate Between Sepsis and Infection-Negative Systemic Inflammation in Critically Ill Patients: Discovery and Validation in Independent Cohorts

    Science.gov (United States)

    McHugh, Leo; Seldon, Therese A.; Brandon, Roslyn A.; Kirk, James T.; Rapisarda, Antony; Sutherland, Allison J.; Presneill, Jeffrey J.; Venter, Deon J.; Lipman, Jeffrey; Thomas, Mervyn R.; Klein Klouwenberg, Peter M. C.; van Vught, Lonneke; Scicluna, Brendon; Bonten, Marc; Cremer, Olaf L.; Schultz, Marcus J.; van der Poll, Tom; Yager, Thomas D.; Brandon, Richard B.

    2015-01-01

    Background Systemic inflammation is a whole body reaction having an infection-positive (i.e., sepsis) or infection-negative origin. It is important to distinguish between these two etiologies early and accurately because this has significant therapeutic implications for critically ill patients. We hypothesized that a molecular classifier based on peripheral blood RNAs could be discovered that would (1) determine which patients with systemic inflammation had sepsis, (2) be robust across independent patient cohorts, (3) be insensitive to disease severity, and (4) provide diagnostic utility. The goal of this study was to identify and validate such a molecular classifier. Methods and Findings We conducted an observational, non-interventional study of adult patients recruited from tertiary intensive care units (ICUs). Biomarker discovery utilized an Australian cohort (n = 105) consisting of 74 cases (sepsis patients) and 31 controls (post-surgical patients with infection-negative systemic inflammation) recruited at five tertiary care settings in Brisbane, Australia, from June 3, 2008, to December 22, 2011. A four-gene classifier combining CEACAM4, LAMP1, PLA2G7, and PLAC8 RNA biomarkers was identified. This classifier, designated SeptiCyte Lab, was validated using reverse transcription quantitative PCR and receiver operating characteristic (ROC) curve analysis in five cohorts (n = 345) from the Netherlands. Patients for validation were selected from the Molecular Diagnosis and Risk Stratification of Sepsis study (ClinicalTrials.gov, NCT01905033), which recruited ICU patients from the Academic Medical Center in Amsterdam and the University Medical Center Utrecht. Patients recruited from November 30, 2012, to August 5, 2013, were eligible for inclusion in the present study. Validation cohort 1 (n = 59) consisted entirely of unambiguous cases and controls; SeptiCyte Lab gave an area under curve (AUC) of 0.95 (95% CI 0.91–1.00) in this cohort. ROC curve analysis of an

  5. A Molecular Host Response Assay to Discriminate Between Sepsis and Infection-Negative Systemic Inflammation in Critically Ill Patients: Discovery and Validation in Independent Cohorts.

    Directory of Open Access Journals (Sweden)

    Leo McHugh

    2015-12-01

    Full Text Available Systemic inflammation is a whole body reaction having an infection-positive (i.e., sepsis or infection-negative origin. It is important to distinguish between these two etiologies early and accurately because this has significant therapeutic implications for critically ill patients. We hypothesized that a molecular classifier based on peripheral blood RNAs could be discovered that would (1 determine which patients with systemic inflammation had sepsis, (2 be robust across independent patient cohorts, (3 be insensitive to disease severity, and (4 provide diagnostic utility. The goal of this study was to identify and validate such a molecular classifier.We conducted an observational, non-interventional study of adult patients recruited from tertiary intensive care units (ICUs. Biomarker discovery utilized an Australian cohort (n = 105 consisting of 74 cases (sepsis patients and 31 controls (post-surgical patients with infection-negative systemic inflammation recruited at five tertiary care settings in Brisbane, Australia, from June 3, 2008, to December 22, 2011. A four-gene classifier combining CEACAM4, LAMP1, PLA2G7, and PLAC8 RNA biomarkers was identified. This classifier, designated SeptiCyte Lab, was validated using reverse transcription quantitative PCR and receiver operating characteristic (ROC curve analysis in five cohorts (n = 345 from the Netherlands. Patients for validation were selected from the Molecular Diagnosis and Risk Stratification of Sepsis study (ClinicalTrials.gov, NCT01905033, which recruited ICU patients from the Academic Medical Center in Amsterdam and the University Medical Center Utrecht. Patients recruited from November 30, 2012, to August 5, 2013, were eligible for inclusion in the present study. Validation cohort 1 (n = 59 consisted entirely of unambiguous cases and controls; SeptiCyte Lab gave an area under curve (AUC of 0.95 (95% CI 0.91-1.00 in this cohort. ROC curve analysis of an independent, more heterogeneous

  6. Identifying critically-ill patients who will benefit most from nutritional therapy: Further validation of the "modified NUTRIC" nutritional risk assessment tool.

    Science.gov (United States)

    Rahman, Adam; Hasan, Rana M; Agarwala, Ravi; Martin, Claudio; Day, Andrew G; Heyland, Daren K

    2016-02-01

    Better tools are needed to assist in the identification of critically ill patients most likely to benefit from artificial nutrition therapy. Recently, the Nutrition Risk in Critically ill (NUTRIC) score has been developed for such purpose. The objective of this study was to externally validate a modified version of the NUTRIC score in a second database. We conducted a post hoc analysis of a database of a randomized control trial of intensive care unit (ICU) patients with multi-organ failure. Data for all variables of the NUTRIC score with the exception of IL-6 levels were collected. These included age, APACHE II score, SOFA score, number of co-morbidities, days from hospital admission to ICU admission. The NUTRIC score was calculated using the exact same thresholds and point system as developed previously except the IL-6 item was omitted. A logistic model including the NUTRIC score, the nutritional adequacy and their interaction was estimated to assess if the NUTRIC score modified the association between nutritional adequacy and 28-day mortality. We also examined the association of elevated NUTRIC scores and 6-month month mortality and the interaction between NUTRIC score and nutritional adequacy. A total of 1199 patients were analyzed. The mean total calories prescribed was 1817 cal (SD 312) with total mean protein prescribed of 98.3 g (SD 23.6). The number of patients who received PN was 9.5%. The overall 28-day mortality rate in this validation sample was 29% and the mean NUTRIC score was 5.5 (SD 1.6). Based on the logistic model, the odds of mortality at 28 days was multiplied by 1.4 (95% CI, 1.3-1.5) for every point increase on the NUTRIC score. The mean (SD) nutritional adequacy was 50.2 (29.5) with an interquartile range from 24.8 to 74.1. The test for interaction confirmed that the association between nutritional adequacy and 28-day mortality is significantly modified by the NUTRIC score (test for interaction p = 0.029). In particular, there is a strong

  7. Adaptation and Validation of a Pediatric Sequential Organ Failure Assessment Score and Evaluation of the Sepsis-3 Definitions in Critically Ill Children.

    Science.gov (United States)

    Matics, Travis J; Sanchez-Pinto, L Nelson

    2017-10-02

    The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3) uses the Sequential Organ Failure Assessment (SOFA) score to grade organ dysfunction in adult patients with suspected infection. However, the SOFA score is not adjusted for age and therefore not suitable for children. To adapt and validate a pediatric version of the SOFA score (pSOFA) in critically ill children and to evaluate the Sepsis-3 definitions in patients with confirmed or suspected infection. This retrospective observational cohort study included all critically ill children 21 years or younger admitted to a 20-bed, multidisciplinary, tertiary pediatric intensive care unit between January 1, 2009 and August 1, 2016. Data on these children were obtained from an electronic health record database. The pSOFA score was developed by adapting the original SOFA score with age-adjusted cutoffs for the cardiovascular and renal systems and by expanding the respiratory criteria to include noninvasive surrogates of lung injury. Daily pSOFA scores were calculated from admission until day 28 of hospitalization, discharge, or death (whichever came first). Three additional pediatric organ dysfunction scores were calculated for comparison. Organ dysfunction measured by the pSOFA score, and sepsis and septic shock according to the Sepsis-3 definitions. The primary outcome was in-hospital mortality. The daily pSOFA scores and additional pediatric organ dysfunction scores were compared. Performance was evaluated using the area under the curve. The pSOFA score was then used to assess the Sepsis-3 definitions in the subgroup of children with confirmed or suspected infection. In all, 6303 patients with 8711 encounters met inclusion criteria. Each encounter was treated independently. Of the 8482 survivors of hospital encounters, 4644 (54.7%) were male and the median (interquartile range [IQR]) age was 69 (17-156) months. Among the 229 nonsurvivors, 127 (55.4%) were male with a median (IQR) age of

  8. Prokofiev. "Romeo and Juliet" - Suites / Iran March

    Index Scriptorium Estoniae

    March, Iran

    1991-01-01

    Uuest heliplaadist "Prokofiev. "Romeo and Juliet" - Suites: N 1 Op. 64 bis a; N 2 Op. 64 ter b; N 3 Op. 101 c. Royal Scottish National Orchestra /Neeme Järvi" Chandos cassette ABTD 1536; CD CHAN 8940 (78 minutes) etc

  9. August Weizenbergi rahumõtted / Gustav Suits

    Index Scriptorium Estoniae

    Suits, Gustav, 1883-1956

    2002-01-01

    Esmakordselt ilmunud: Isamaa, 28., 30. Jun. 1906, nr. 49-50. Ajendatud A. Weizenbergi kirjutisest "Kihutused" ajalehes "Isamaa", 1906, nr. 44-47. Vt. ka: August Weizenberg: vastus härra Spectatorile, Suits, G. Vabaduse väraval, lk. 403-409

  10. Uus Testament ja Piibel / Gustav Suits

    Index Scriptorium Estoniae

    Suits, Gustav, 1883-1956

    1999-01-01

    Varem ilmunud: Suits, Gustav. Eesti kirjanduslugu I. Lund : Eesti Kirjanike Kooperatiiv, 1953. Meie Issanda Jesusse Kristusse Uus Testament Ehk Jummala Ue Sädusse Sanna (1715). Eeltööd Vana Testamendi tõlkimiseks põhjaeesti keelde eesotsas Anton Thor Hellega. Ilmus täispiibel: Piibli Ramat, se on keik se Jummala Sanna...(1739)

  11. Clean room technology in surgery suites

    Science.gov (United States)

    1971-01-01

    The principles of clean room technology and the criteria for their application to surgery are discussed. The basic types of surgical clean rooms are presented along with their advantages and disadvantages. Topics discussed include: microbiology of surgery suites; principles of laminar airflow systems, and their use in surgery; and asepsis and the operating room.

  12. Cave Biosignature Suites: Microbes, Minerals, and Mars

    Science.gov (United States)

    Boston, P. J.; Spilde, M. N.; Northup, D. E.; Melim, L. A.; Soroka, D. S.; Kleina, L. G.; Lavoie, K. H.; Hose, L. D.; Mallory, L. M.; Dahm, C. N.; Crossey, L. J.; Schelble, R. T.

    2001-03-01

    Earth's subsurface offers one of the best possible sites to search for microbial life and the characteristic lithologies that life leaves behind. The subterrain may be equally valuable for astrobiology. Where surface conditions are particularly hostile, like on Mars, the subsurface may offer the only habitat for extant lifeforms and access to recognizable biosignatures. We have identified numerous unequivocally biogenic macroscopic, microscopic, and chemical/geochemical cave biosignatures. However, to be especially useful for astrobiology, we are looking for suites of characteristics. Ideally, "biosignature suites" should be both macroscopically and microscopically detectable, independently verifiable by nonmorphological means, and as independent as possible of specific details of life chemistries - demanding (and sometimes conflicting) criteria. Working in fragile, legally protected environments, we developed noninvasive and minimal impact techniques for life and biosignature detection/characterization analogous to Planetary Protection Protocols. Our difficult field conditions have shared limitations common to extraterrestrial robotic and human missions. Thus, the cave/subsurface astrobiology model addresses the most important goals from both scientific and operational points of view. We present details of cave biosignature suites involving manganese and iron oxides, calcite, and sulfur minerals. Suites include morphological fossils, mineral-coated filaments, living microbial mats and preserved biofabrics, 13C and 34S values consistent with microbial metabolism, genetic data, unusual elemental abundances and ratios, and crystallographic mineral forms.

  13. Antigravity Suits For Studies Of Weightlessness

    Science.gov (United States)

    Kravik, Stein E.; Greenleaf, John

    1992-01-01

    Report presents results of research on use of "antigravity" suit, one applying positive pressure to lower body to simulate some effects of microgravity. Research suggests lower-body positive pressure is alternative to bed rest or immersion in water in terrestrial studies of cardioregulatory, renal, electrolyte, and hormonal changes induced in humans by microgravity.

  14. Extending the long-term record of volcanic SO2 emissions with the Ozone Mapping and Profiler Suite nadir mapper

    Science.gov (United States)

    Carn, S. A.; Yang, K.; Prata, A. J.; Krotkov, N. A.

    2015-02-01

    Uninterrupted, global space-based monitoring of volcanic sulfur dioxide (SO2) emissions is critical for climate modeling and aviation hazard mitigation. We report the first volcanic SO2 measurements using ultraviolet (UV) Ozone Mapping and Profiler Suite (OMPS) nadir mapper data. OMPS was launched on the Suomi National Polar-orbiting Partnership satellite in October 2011. We demonstrate the sensitivity of OMPS SO2 measurements by quantifying SO2 emissions from the modest eruption of Paluweh volcano (Indonesia) in February 2013 and tracking the dispersion of the volcanic SO2 cloud. The OMPS SO2 retrievals are validated using Ozone Monitoring Instrument and Atmospheric Infrared Sounder measurements. The results confirm the ability of OMPS to extend the long-term record of volcanic SO2 emissions based on UV satellite observations. We also show that the Paluweh volcanic SO2 reached the lower stratosphere, further demonstrating the impact of small tropical volcanic eruptions on stratospheric aerosol optical depth and climate.

  15. Open architecture of smart sensor suites

    Science.gov (United States)

    Müller, Wilmuth; Kuwertz, Achim; Grönwall, Christina; Petersson, Henrik; Dekker, Rob; Reinert, Frank; Ditzel, Maarten

    2017-10-01

    Experiences from recent conflicts show the strong need for smart sensor suites comprising different multi-spectral imaging sensors as core elements as well as additional non-imaging sensors. Smart sensor suites should be part of a smart sensor network - a network of sensors, databases, evaluation stations and user terminals. Its goal is to optimize the use of various information sources for military operations such as situation assessment, intelligence, surveillance, reconnaissance, target recognition and tracking. Such a smart sensor network will enable commanders to achieve higher levels of situational awareness. Within the study at hand, an open system architecture was developed in order to increase the efficiency of sensor suites. The open system architecture for smart sensor suites, based on a system-of-systems approach, enables combining different sensors in multiple physical configurations, such as distributed sensors, co-located sensors combined in a single package, tower-mounted sensors, sensors integrated in a mobile platform, and trigger sensors. The architecture was derived from a set of system requirements and relevant scenarios. Its mode of operation is adaptable to a series of scenarios with respect to relevant objects of interest, activities to be observed, available transmission bandwidth, etc. The presented open architecture is designed in accordance with the NATO Architecture Framework (NAF). The architecture allows smart sensor suites to be part of a surveillance network, linked e.g. to a sensor planning system and a C4ISR center, and to be used in combination with future RPAS (Remotely Piloted Aircraft Systems) for supporting a more flexible dynamic configuration of RPAS payloads.

  16. Surgical Critical Care Initiative

    Data.gov (United States)

    Federal Laboratory Consortium — The Surgical Critical Care Initiative (SC2i) is a USU research program established in October 2013 to develop, translate, and validate biology-driven critical care....

  17. Miniature Sensor Probe for O2, CO2, and H2O Monitoring in Space Suits Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Advanced space suits require lightweight, low-power, durable sensors for monitoring critical life support materials. No current compact sensors have the tolerance...

  18. ANALYSIS OF DESIGN ELEMENTS IN SKI SUITS

    Directory of Open Access Journals (Sweden)

    Birsen Çileroğlu

    2014-06-01

    Full Text Available Popularity of Ski Sport in 19th century necessitated a new perspective on protective skiing clothing ag ainst the mountain climates and excessive cold. Winter clothing were the basis of ski attire during this period. By the beginning of 20th century lining cloth were used to minimize the wind effect. The difference between the men and women’s ski attire of the time consisted of a knee - length skirts worn over the golf trousers. Subsequent to the First World War, skiing suit models were influenced by the period uniforms and the producers reflected the fashion trends to the ski clothing. In conformance with th e prevailing trends, ski trousers were designed and produced for the women thus leading to reduction in gender differences. Increases in the ski tourism and holding of the first winter olympics in 1924 resulted in variations in ski attires, development of design characteristics, growth in user numbers, and enlargement of production capacities. Designers emphasized in their collections combined presence of elegance and practicality in the skiing attire. In 1930s, the ski suits influenced by pilots’ uniforms included characteristics permitting freedom of motion, and the design elements exhibited changes in terms of style, material and aerodynamics. In time, the ski attires showed varying design features distinguishing professionals from the amateurs. While protective functionality was primary consideration for the amateurs, for professionals the aerodynamic design was also a leading factor. Eventually, the increased differences in design characteristics were exhibited in ski suit collections, World reknown brands were formed, production and sales volumes showed significant rise. During 20th century the ski suits influenced by fashion trends to acquire unique styles reached a position of dominance to impact current fashion trends, and apart from sports attir es they became a style determinant in the clothing of cold climates. Ski suits

  19. Extending and Enhancing SAS (Static Analysis Suite)

    CERN Document Server

    Ho, David

    2016-01-01

    The Static Analysis Suite (SAS) is an open-source software package used to perform static analysis on C and C++ code, helping to ensure safety, readability and maintainability. In this Summer Student project, SAS was enhanced to improve ease of use and user customisation. A straightforward method of integrating static analysis into a project at compilation time was provided using the automated build tool CMake. The process of adding checkers to the suite was streamlined and simplied by developing an automatic code generator. To make SAS more suitable for continuous integration, a reporting mechanism summarising results was added. This suitability has been demonstrated by inclusion of SAS in the Future Circular Collider Software nightly build system. Scalability of the improved package was demonstrated by using the tool to analyse the ROOT code base.

  20. TSNLP Test Suites for Natural Language Processing

    CERN Document Server

    Lehmann, S; Regnier-Prost, S; Netter, K; Lux, V; Klein, J; Falkedal, K; Fouvry, F; Estival, D; Dauphin, E; Compagnion, H; Baur, J; Baur, J; Balkan, L; Arnold, D; Lehmann, Sabine; Oepen, Stephan; Regnier-Prost, Sylvie; Netter, Klaus; Lux, Veronika; Klein, Judith; Falkedal, Kirsten; Fouvry, Frederik; Estival, Dominique; Dauphin, Eva; Compagnion, Herve; Baur, Judith; Baur, Judith; Balkan, Lorna; Arnold, Doug

    1996-01-01

    The TSNLP project has investigated various aspects of the construction, maintenance and application of systematic test suites as diagnostic and evaluation tools for NLP applications. The paper summarizes the motivation and main results of the project: besides the solid methodological foundation, TSNLP has produced substantial multi-purpose and multi-user test suites for three European languages together with a set of specialized tools that facilitate the construction, extension, maintenance, retrieval, and customization of the test data. As TSNLP results, including the data and technology, are made publicly available, the project presents a valuable linguistic resourc e that has the potential of providing a wide-spread pre-standard diagnostic and evaluation tool for both developers and users of NLP applications.

  1. AX-5 space suit bearing torque investigation

    Science.gov (United States)

    Loewenthal, Stuart; Vykukal, Vic; Mackendrick, Robert; Culbertson, Philip, Jr.

    1990-01-01

    The symptoms and eventual resolution of a torque increase problem occurring with ball bearings in the joints of the AX-5 space suit are described. Starting torques that rose 5 to 10 times initial levels were observed in crew evaluation tests of the suit in a zero-g water tank. This bearing problem was identified as a blocking torque anomaly, observed previously in oscillatory gimbal bearings. A large matrix of lubricants, ball separator designs and materials were evaluated. None of these combinations showed sufficient tolerance to lubricant washout when repeatedly cycled in water. The problem was resolved by retrofitting a pressure compensated, water exclusion seal to the outboard side of the bearing cavity. The symptoms and possible remedies to blocking are discussed.

  2. Center for Efficient Exascale Discretizations Software Suite

    Energy Technology Data Exchange (ETDEWEB)

    2017-08-30

    The CEED Software suite is a collection of generally applicable software tools focusing on the following computational motives: PDE discretizations on unstructured meshes, high-order finite element and spectral element methods and unstructured adaptive mesh refinement. All of this software is being developed as part of CEED, a co-design Center for Efficient Exascale Discretizations, within DOE's Exascale Computing Project (ECP) program.

  3. A new device for the inflation of the antigravity suit.

    Science.gov (United States)

    Brodrick, P M

    1986-02-01

    The 'Schuco' orthopaedic tourniquet inflator can be simply converted into a suitable device for inflating an antigravity suit (G-suit). The antigravity suit may be used on neurosurgical patients undergoing procedures in the sitting position to help prevent hypotension and air embolism. The availability of this device may encourage the more widespread use of an antigravity suit in neuro-anaesthetic practice.

  4. 33 CFR 144.20-5 - Exposure suits.

    Science.gov (United States)

    2010-07-01

    ... § 144.20-5 Exposure suits. This section applies to each MODU except those operating south of 32 degrees... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Exposure suits. 144.20-5 Section... MODU must carry an exposure suit for each person on board. The exposure suit must be stowed in a...

  5. Multicentre validation of the bedside paediatric early warning system score: a severity of illness score to detect evolving critical illness in hospitalised children

    Science.gov (United States)

    2011-01-01

    Introduction The timely provision of critical care to hospitalised patients at risk for cardiopulmonary arrest is contingent upon identification and referral by frontline providers. Current approaches require improvement. In a single-centre study, we developed the Bedside Paediatric Early Warning System (Bedside PEWS) score to identify patients at risk. The objective of this study was to validate the Bedside PEWS score in a large patient population at multiple hospitals. Methods We performed an international, multicentre, case-control study of children admitted to hospital inpatient units with no limitations on care. Case patients had experienced a clinical deterioration event involving either an immediate call to a resuscitation team or urgent admission to a paediatric intensive care unit. Control patients had no events. The scores ranged from 0 to 26 and were assessed in the 24 hours prior to the clinical deterioration event. Score performance was assessed using the area under the receiver operating characteristic (AUCROC) curve by comparison with the retrospective rating of nurses and the temporal progression of scores in case patients. Results A total of 2,074 patients were evaluated at 4 participating hospitals. The median (interquartile range) maximum Bedside PEWS scores for the 12 hours ending 1 hour before the clinical deterioration event were 8 (5 to 12) in case patients and 2 (1 to 4) in control patients (P scores were 5.3 at 20 to 24 hours and 8.4 at 0 to 4 hours before the event (P score (P score identified children at risk for cardiopulmonary arrest. Scores were elevated and continued to increase in the 24 hours before the clinical deterioration event. Prospective clinical evaluation is needed to determine whether this score will improve the quality of care and patient outcomes. PMID:21812993

  6. Spinal Test Suites for Software Product Lines

    Directory of Open Access Journals (Sweden)

    Harsh Beohar

    2014-03-01

    Full Text Available A major challenge in testing software product lines is efficiency. In particular, testing a product line should take less effort than testing each and every product individually. We address this issue in the context of input-output conformance testing, which is a formal theory of model-based testing. We extend the notion of conformance testing on input-output featured transition systems with the novel concept of spinal test suites. We show how this concept dispenses with retesting the common behavior among different, but similar, products of a software product line.

  7. An integrated surgical suite management information system.

    Science.gov (United States)

    Martin, J B; Cantrell, M E; Fichman, R G; Hunsberger, P K; Radoyevich, M

    1984-08-01

    The operational aspects, application areas, and results achieved from an integrated surgical suite management information system are described. The system, which has been operating within Henry Ford Hospital in Detroit, Michigan, for 4 years, captures comprehensive data for each surgical episode, performs extensive edits on these data to assure data base integrity, and utilizes this data base in multiple applications. These applications include fixed-format reporting for medical staff and management; ad hoc retrieval capabilities to support research, education, and decision making; and linkage to other hospital systems to reduce both data redundancy and paper flow.

  8. Durable Suit Bladder with Improved Water Permeability for Pressure and Environment Suits

    Science.gov (United States)

    Bue, Grant C.; Kuznetz, Larry; Orndoff, Evelyne; Tang, Henry; Aitchison, Lindsay; Ross, Amy

    2009-01-01

    Water vapor permeability is shown to be useful in rejecting heat and managing moisture accumulation in launch-and-entry pressure suits. Currently this is accomplished through a porous Gortex layer in the Advanced Crew and Escape Suit (ACES) and in the baseline design of the Constellation Suit System Element (CSSE) Suit 1. Non-porous dense monolithic membranes (DMM) that are available offer potential improvements for water vapor permeability with reduced gas leak. Accordingly, three different pressure bladder materials were investigated for water vapor permeability and oxygen leak: ElasthaneTM 80A (thermoplastic polyether urethane) provided from stock polymer material and two custom thermoplastic polyether urethanes. Water vapor, carbon dioxide and oxygen permeability of the DMM's was measured in a 0.13 mm thick stand-alone layer, a 0.08 mm and 0.05 mm thick layer each bonded to two different nylon and polyester woven reinforcing materials. Additional water vapor permeability and mechanical compression measurements were made with the reinforced 0.05 mm thick layers, further bonded with a polyester wicking and overlaid with moistened polyester fleece thermal underwear .This simulated the pressure from a supine crew person. The 0.05 mm thick nylon reinforced sample with polyester wicking layer was further mechanically tested for wear and abrasion. Concepts for incorporating these materials in launch/entry and Extravehicular Activity pressure suits are presented.

  9. MASH Suite Pro: A Comprehensive Software Tool for Top-Down Proteomics*

    Science.gov (United States)

    Cai, Wenxuan; Guner, Huseyin; Gregorich, Zachery R.; Chen, Albert J.; Ayaz-Guner, Serife; Peng, Ying; Valeja, Santosh G.; Liu, Xiaowen; Ge, Ying

    2016-01-01

    Top-down mass spectrometry (MS)-based proteomics is arguably a disruptive technology for the comprehensive analysis of all proteoforms arising from genetic variation, alternative splicing, and posttranslational modifications (PTMs). However, the complexity of top-down high-resolution mass spectra presents a significant challenge for data analysis. In contrast to the well-developed software packages available for data analysis in bottom-up proteomics, the data analysis tools in top-down proteomics remain underdeveloped. Moreover, despite recent efforts to develop algorithms and tools for the deconvolution of top-down high-resolution mass spectra and the identification of proteins from complex mixtures, a multifunctional software platform, which allows for the identification, quantitation, and characterization of proteoforms with visual validation, is still lacking. Herein, we have developed MASH Suite Pro, a comprehensive software tool for top-down proteomics with multifaceted functionality. MASH Suite Pro is capable of processing high-resolution MS and tandem MS (MS/MS) data using two deconvolution algorithms to optimize protein identification results. In addition, MASH Suite Pro allows for the characterization of PTMs and sequence variations, as well as the relative quantitation of multiple proteoforms in different experimental conditions. The program also provides visualization components for validation and correction of the computational outputs. Furthermore, MASH Suite Pro facilitates data reporting and presentation via direct output of the graphics. Thus, MASH Suite Pro significantly simplifies and speeds up the interpretation of high-resolution top-down proteomics data by integrating tools for protein identification, quantitation, characterization, and visual validation into a customizable and user-friendly interface. We envision that MASH Suite Pro will play an integral role in advancing the burgeoning field of top-down proteomics. PMID:26598644

  10. MASH Suite Pro: A Comprehensive Software Tool for Top-Down Proteomics.

    Science.gov (United States)

    Cai, Wenxuan; Guner, Huseyin; Gregorich, Zachery R; Chen, Albert J; Ayaz-Guner, Serife; Peng, Ying; Valeja, Santosh G; Liu, Xiaowen; Ge, Ying

    2016-02-01

    Top-down mass spectrometry (MS)-based proteomics is arguably a disruptive technology for the comprehensive analysis of all proteoforms arising from genetic variation, alternative splicing, and posttranslational modifications (PTMs). However, the complexity of top-down high-resolution mass spectra presents a significant challenge for data analysis. In contrast to the well-developed software packages available for data analysis in bottom-up proteomics, the data analysis tools in top-down proteomics remain underdeveloped. Moreover, despite recent efforts to develop algorithms and tools for the deconvolution of top-down high-resolution mass spectra and the identification of proteins from complex mixtures, a multifunctional software platform, which allows for the identification, quantitation, and characterization of proteoforms with visual validation, is still lacking. Herein, we have developed MASH Suite Pro, a comprehensive software tool for top-down proteomics with multifaceted functionality. MASH Suite Pro is capable of processing high-resolution MS and tandem MS (MS/MS) data using two deconvolution algorithms to optimize protein identification results. In addition, MASH Suite Pro allows for the characterization of PTMs and sequence variations, as well as the relative quantitation of multiple proteoforms in different experimental conditions. The program also provides visualization components for validation and correction of the computational outputs. Furthermore, MASH Suite Pro facilitates data reporting and presentation via direct output of the graphics. Thus, MASH Suite Pro significantly simplifies and speeds up the interpretation of high-resolution top-down proteomics data by integrating tools for protein identification, quantitation, characterization, and visual validation into a customizable and user-friendly interface. We envision that MASH Suite Pro will play an integral role in advancing the burgeoning field of top-down proteomics. © 2016 by The American

  11. Cultural heritage and sustainable development in SUIT

    DEFF Research Database (Denmark)

    Algreen-Ussing, Gregers; Hassler, Uta; Kohler, Niklaus

    2004-01-01

    into consideration some new and emerging cultural aspects and to integrate them into adapted conservation procedures. This enlarged and more complex view on urban built heritage conservation problems has driven the SUIT project to propose introducing a new concept: the "active conservation". The definition...... of strategic objectives related to urban fragments heritage active-conservation and their management on long-term is a collective action that necessitates the ability to evaluate the quality of an urban fragment as a whole.......Urban projects, plans and other programmes falls under present Environmental Impact Assessment (EIA) directive as well as the Strategic Environmental Assessment (SEA) directive. There is a need to adopt more comprehensive understanding of urban built heritage, one that would enable taking...

  12. Vadose zone flow convergence test suite

    Energy Technology Data Exchange (ETDEWEB)

    Butcher, B. T. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

    2017-06-05

    Performance Assessment (PA) simulations for engineered disposal systems at the Savannah River Site involve highly contrasting materials and moisture conditions at and near saturation. These conditions cause severe convergence difficulties that typically result in unacceptable convergence or long simulation times or excessive analyst effort. Adequate convergence is usually achieved in a trial-anderror manner by applying under-relaxation to the Saturation or Pressure variable, in a series of everdecreasing RELAxation values. SRNL would like a more efficient scheme implemented inside PORFLOW to achieve flow convergence in a more reliable and efficient manner. To this end, a suite of test problems that illustrate these convergence problems is provided to facilitate diagnosis and development of an improved convergence strategy. The attached files are being transmitted to you describing the test problem and proposed resolution.

  13. A study on the use of the reactor basic experiments in the U-D2O lattices of the RB critical assembly for validation of modern nuclear data libraries

    Directory of Open Access Journals (Sweden)

    Pešić Milan P.

    2016-01-01

    Full Text Available Demand on the availability of well-defined reactor experiments for validation of computer codes for use in nuclear industry and nuclear technology is everlasting. Users must be confident of the results obtained by the proven computer codes and nuclear data libraries chosen in the models. The well-defined (mostly historical and evaluated reactor experiments (about 5000 in 2015 were collected continuously as the benchmarks within the frame of the OECD/NEA international projects ICSBEP (since 1995 and IRPhEP (since 2003. The Handbooks of the Projects are published in electronic forms (at the NEA web site of the OECD and at a DVD media every year. This study is aimed to (a examine and evaluate reactor basic experiments, carried out in the lattice of the natural uranium metal fuel in the heavy water of the RB critical assembly first core in 1958, and (b demonstrate their possibility for validation of modern nuclear data libraries. These RB reactor basic experiments include: (1 approach to criticality, (2 determination of the reactivity gradient at the D2O critical level, (3 measurement of the dependence of the D2O critical level on the D2O temperature, i. e. dependence of the reactivity with change in the D2O temperature; (4 the critical reactor geometrical parameter (buckling measurements, (5 the migration length measurements, (6 determination of the neutron multiplication factor in the infinite lattice, and (7 the safety rods reactivity measurements. Results of the experiments are compared to the results obtained using modern nuclear data libraries of the ACE type by applying the MCNP6.1, a well-known and proven computer code based on the Monte Carlo method. A short overview of these experiments (done at the RB assembly is shown. A brief description of the neutron ACE type nuclear data libraries (created in the LANL, based on the ENDF/B-VII.0 and ENDF/B-VII.1 files, or created in the OECD/NEA, based on the JEFF-3.2 evaluated nuclear data files

  14. The application suite IDA> for investigation of dynamics of asteroids

    Science.gov (United States)

    Bykova, L. E.; Galushina, T. Yu.; Baturin, A. P.

    2012-12-01

    This paper is devoted to description of the application suite IDA> that is designed for investigation of dynamics and probability orbital evolution of asteroids. The features of this suite are multifunctionality, high efficiency and convenient interface.

  15. Bacterial contamination in a modern operating suite

    Science.gov (United States)

    Hambraeus, Anna; Bengtsson, Stellan; Laurell, Gunnar

    1977-01-01

    The effect of ventilation on airborne contamination was studied in a new operating suite containing operating rooms with conventional ventilation (17-20 turnovers/h) and operating rooms with zonal ventilation, where the turnover in the central part of the room was ∼ 80/h. The efficacy of the ventilation was first examined with gas tracer experiments and found satisfactory. Experiments using potassium iodide particles showed the transfer between adjacent rooms in the suite to be less than 10-3% with closed doors and from 1% to 2·5 × 10-2% when the doors were opened once a minute. The transfer between two adjacent operating rooms was calculated to be ∼ 10-4%. There is thus little risk of spread of airborne infection between operating rooms. Experiments with potassium iodide particles showed that in operating rooms with zonal ventilation the particle concentration in the centre of the room was about one-tenth that in the periphery; in conventionally ventilated operating rooms the concentration was about one-half. With bacteria-carrying particles generated by human activity the concentration in the centre of operating rooms with zonal ventilation was about half that in the periphery both during experimental activity and operations; in conventionally ventilated operating rooms it was about equal in both cases. Bacterial counts at the periphery were found to be lower in rooms with zonal ventilation (∼ 50 c.f.u./m3) than in conventionally ventilated (∼ 70 c.f.u./m3). PMID:267664

  16. Metabolic Assessment of Suited Mobility Using Functional Tasks

    Science.gov (United States)

    Norcross, J. R.; McFarland, S. M.; Ploutz-Snyder, Robert

    2016-01-01

    Existing methods for evaluating extravehicular activity (EVA) suit mobility have typically focused on isolated joint range of motion or torque, but these techniques have little to do with how well a crewmember functionally performs in an EVA suit. To evaluate suited mobility at the system level through measuring metabolic cost (MC) of functional tasks.

  17. Development of the Nurses' Care Coordination Competency Scale for mechanically ventilated patients in critical care settings in Japan: Part 2 Validation of the scale.

    Science.gov (United States)

    Takiguchi, Chie; Yatomi, Yumiko; Inoue, Tomoko

    2017-12-01

    To confirm the validity and reliability of the nurses' care coordination competency draft scale for mechanically ventilated patients in Japan. In this cross sectional observational study, a draft scale measuring care coordination was distributed to 2189 nurses from 73 intensive care units in Japan from February-March 2016. Based on the valid 887 responses, we examined construct validity including structural validity (exploratory and confirmatory factor analysis), convergent and discriminant validity and internal consistency reliability. 73 Intensive care units. Exploratory factor analyses yielded four factors with 22 items: 1) promoting team cohesion, 2) understanding care coordination needs, 3) aggregating and disseminating information, 4) devising and clearly articulating the care vision. The four-factor model was confirmed using a confirmatory factor analysis (confirmatory fit index=0.942, root mean square error of approximation=0.062). Scale scores positively correlated with team leadership and clearly identified and discriminated nurses' attributes. Cronbach's alpha coefficient for each subscale was between 0.812 and 0.890, and 0.947 for the total scale. The Nurses' Care Coordination Competency Scale with four factors and 22 items had sufficient validity and reliability. The scale could make care coordination visible in nursing practice. Future research on the relationship between this scale and patient outcomes is needed. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. Disease-specific questionnaire for quality of life in patients with peripheral arterial occlusive disease in the stage of critical ischemia (FLeQKI) - methodical development of a specific measuring instrument and psychometric evaluation of its validity and reliability. Pt. 1; Fragebogen zur gesundheitsbezogenen Lebensqualitaet von Patienten mit peripherer arterieller Verschlusskrankheit (pAVK) im Stadium kritischer Ischaemie (FLeQKI) - methodische Entwicklung eines krankheitsspezifischen Messinstruments und psychometrische Bestimmung seiner Validitaet und Reliabilitaet. T. 1

    Energy Technology Data Exchange (ETDEWEB)

    Wohlgemuth, W.A.; Bohndorf, K.; Kirchhof, K. [Klinikum Augsburg (Germany). Klinik fuer Diagnostische Radiologie und Neuroradiologie; Olbricht, W. [Bayreuth Univ. (Germany). Lehrstuhl fuer Mathematik VII; Klarmann, S. [Klinikum Augsburg (Germany). Klinik fuer Neurologie und Klinische Neurophysiologie; Engelhardt, M. [Bundeswehrkrankenhaus Ulm (Germany). Klinik fuer Gefaesschirurgie; Freitag, M.H. [Bayreuth Univ. (Germany). Inst. fuer Medizinmanagement und Gesundheitswissenschaften; Woelfle, K. [Klinikum Augsburg (Germany). Klinik fuer Gefaesschirurgie

    2007-12-15

    .96). Conclusion: The FLeQKI is well suited for determining the specific impairments of life quality in patients with peripheral arterial occlusive disease at the stage of critical ischemia. Its psychometric scores for validity and reliability corresponded to those of the SF-36. (orig.)

  19. Validación de puntos críticos de la producción de Surfacen Validation of critical features of Surfacen production

    Directory of Open Access Journals (Sweden)

    Yamilka Riverón Alemán

    2009-08-01

    of the available regulations, it was demonstrated that pig breeding, its sacrifice process, and materials used in achievement of lung lavages, allow us to obtain a defined microbiologic quality and under control. Production process was able to eliminate microbial charge present in lung lavages, which together with the remainder preparation tasks of sterile materials, its transfer, use, as well as cleaning and disinfection of clean areas, the aseptic filling, and staff guaranteed sterility of end product. All these results allow us to conclude that the critical processes of Surfacen® production are validated and guarantee that this one be sterile, pyrogen-free, and without toxic residuals, demonstrating its safety, reproducibility and consistence.

  20. Enhanced Verification Test Suite for Physics Simulation Codes

    Energy Technology Data Exchange (ETDEWEB)

    Kamm, J R; Brock, J S; Brandon, S T; Cotrell, D L; Johnson, B; Knupp, P; Rider, W; Trucano, T; Weirs, V G

    2008-10-10

    This document discusses problems with which to augment, in quantity and in quality, the existing tri-laboratory suite of verification problems used by Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratories (SNL). The purpose of verification analysis is demonstrate whether the numerical results of the discretization algorithms in physics and engineering simulation codes provide correct solutions of the corresponding continuum equations. The key points of this document are: (1) Verification deals with mathematical correctness of the numerical algorithms in a code, while validation deals with physical correctness of a simulation in a regime of interest. This document is about verification. (2) The current seven-problem Tri-Laboratory Verification Test Suite, which has been used for approximately five years at the DOE WP laboratories, is limited. (3) Both the methodology for and technology used in verification analysis have evolved and been improved since the original test suite was proposed. (4) The proposed test problems are in three basic areas: (a) Hydrodynamics; (b) Transport processes; and (c) Dynamic strength-of-materials. (5) For several of the proposed problems we provide a 'strong sense verification benchmark', consisting of (i) a clear mathematical statement of the problem with sufficient information to run a computer simulation, (ii) an explanation of how the code result and benchmark solution are to be evaluated, and (iii) a description of the acceptance criterion for simulation code results. (6) It is proposed that the set of verification test problems with which any particular code be evaluated include some of the problems described in this document. Analysis of the proposed verification test problems constitutes part of a necessary--but not sufficient--step that builds confidence in physics and engineering simulation codes. More complicated test cases, including physics models of

  1. Equation-of-State Test Suite for the DYNA3D Code

    Energy Technology Data Exchange (ETDEWEB)

    Benjamin, Russell D. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-11-05

    This document describes the creation and implementation of a test suite for the Equationof- State models in the DYNA3D code. A customized input deck has been created for each model, as well as a script that extracts the relevant data from the high-speed edit file created by DYNA3D. Each equation-of-state model is broken apart and individual elements of the model are tested, as well as testing the entire model. The input deck for each model is described and the results of the tests are discussed. The intent of this work is to add this test suite to the validation suite presently used for DYNA3D.

  2. [Antigravity suit used for neurosurgical operations in sitting position].

    Science.gov (United States)

    Szpiro-Zurkowska, A; Milczarek, Z; Marchel, A; Jagielski, J

    1996-01-01

    The aviator's antigravity suit (G-suit) was used for 40 operations on neurosurgical patients operated on in sitting position. The G-suit was filled with air to 0.2 atmosphere (20 kPa) pressure in 26 cases, and 0.3 atm. (30 kPa) in 14 cases. In all cases G-suit filling was followed by central venous pressure rise and mean arterial pressure rise. Venous air embolism was found in 5 (12.5%) patients. No other complications connected with the use of G-suit were observed.

  3. Automated Structure Solution with the PHENIX Suite

    Energy Technology Data Exchange (ETDEWEB)

    Zwart, Peter H.; Zwart, Peter H.; Afonine, Pavel; Grosse-Kunstleve, Ralf W.; Hung, Li-Wei; Ioerger, Tom R.; McCoy, A.J.; McKee, Eric; Moriarty, Nigel; Read, Randy J.; Sacchettini, James C.; Sauter, Nicholas K.; Storoni, L.C.; Terwilliger, Tomas C.; Adams, Paul D.

    2008-06-09

    Significant time and effort are often required to solve and complete a macromolecular crystal structure. The development of automated computational methods for the analysis, solution and completion of crystallographic structures has the potential to produce minimally biased models in a short time without the need for manual intervention. The PHENIX software suite is a highly automated system for macromolecular structure determination that can rapidly arrive at an initial partial model of a structure without significant human intervention, given moderate resolution and good quality data. This achievement has been made possible by the development of new algorithms for structure determination, maximum-likelihood molecular replacement (PHASER), heavy-atom search (HySS), template and pattern-based automated model-building (RESOLVE, TEXTAL), automated macromolecular refinement (phenix.refine), and iterative model-building, density modification and refinement that can operate at moderate resolution (RESOLVE, AutoBuild). These algorithms are based on a highly integrated and comprehensive set of crystallographic libraries that have been built and made available to the community. The algorithms are tightly linked and made easily accessible to users through the PHENIX Wizards and the PHENIX GUI.

  4. Automated structure solution with the PHENIX suite.

    Science.gov (United States)

    Zwart, Peter H; Afonine, Pavel V; Grosse-Kunstleve, Ralf W; Hung, Li-Wei; Ioerger, Thomas R; McCoy, Airlie J; McKee, Erik; Moriarty, Nigel W; Read, Randy J; Sacchettini, James C; Sauter, Nicholas K; Storoni, Laurent C; Terwilliger, Thomas C; Adams, Paul D

    2008-01-01

    Significant time and effort are often required to solve and complete a macromolecular crystal structure. The development of automated computational methods for the analysis, solution, and completion of crystallographic structures has the potential to produce minimally biased models in a short time without the need for manual intervention. The PHENIX software suite is a highly automated system for macromolecular structure determination that can rapidly arrive at an initial partial model of a structure without significant human intervention, given moderate resolution, and good quality data. This achievement has been made possible by the development of new algorithms for structure determination, maximum-likelihood molecular replacement (PHASER), heavy-atom search (HySS), template- and pattern-based automated model-building (RESOLVE, TEXTAL), automated macromolecular refinement (phenix. refine), and iterative model-building, density modification and refinement that can operate at moderate resolution (RESOLVE, AutoBuild). These algorithms are based on a highly integrated and comprehensive set of crystallographic libraries that have been built and made available to the community. The algorithms are tightly linked and made easily accessible to users through the PHENIX Wizards and the PHENIX GUI.

  5. Automated structure solution with the PHENIX suite

    Energy Technology Data Exchange (ETDEWEB)

    Terwilliger, Thomas C [Los Alamos National Laboratory; Zwart, Peter H [LBNL; Afonine, Pavel V [LBNL; Grosse - Kunstleve, Ralf W [LBNL

    2008-01-01

    Significant time and effort are often required to solve and complete a macromolecular crystal structure. The development of automated computational methods for the analysis, solution, and completion of crystallographic structures has the potential to produce minimally biased models in a short time without the need for manual intervention. The PHENIX software suite is a highly automated system for macromolecular structure determination that can rapidly arrive at an initial partial model of a structure without significant human intervention, given moderate resolution, and good quality data. This achievement has been made possible by the development of new algorithms for structure determination, maximum-likelihood molecular replacement (PHASER), heavy-atom search (HySS), template- and pattern-based automated model-building (RESOLVE, TEXTAL), automated macromolecular refinement (phenix. refine), and iterative model-building, density modification and refinement that can operate at moderate resolution (RESOLVE, AutoBuild). These algorithms are based on a highly integrated and comprehensive set of crystallographic libraries that have been built and made available to the community. The algorithms are tightly linked and made easily accessible to users through the PHENIX Wizards and the PHENIX GUI.

  6. Post-Bayesian strategies to optimize astrobiology instrument suites: lessons from Antarctica and the Pilbara

    Science.gov (United States)

    Storrie-Lombardi, Michael C.

    2005-09-01

    minimum requirements for an astrobiological instrument suite for remote or human exploration of extreme environments both here on Earth and in our local and neighboring planetary systems. Critical items of concern include obtaining co-registered data characterizing target morphology, metabolism, and mobility; the face validity and familiarity of the instrumentation to the scientific community, and the choice of instrumentation sufficiently inexpensive and easy to use that it might find wide spread usage within the astrobiology community prior to mission deployment. Preliminary indications are that such an instrument can be implemented for a cost accessible to high school, college, and graduate students interested in geobiological and astrobiological research in extreme or hazardous environments.

  7. An integrative variant analysis suite for whole exome next-generation sequencing data

    Directory of Open Access Journals (Sweden)

    Challis Danny

    2012-01-01

    Full Text Available Abstract Background Whole exome capture sequencing allows researchers to cost-effectively sequence the coding regions of the genome. Although the exome capture sequencing methods have become routine and well established, there is currently a lack of tools specialized for variant calling in this type of data. Results Using statistical models trained on validated whole-exome capture sequencing data, the Atlas2 Suite is an integrative variant analysis pipeline optimized for variant discovery on all three of the widely used next generation sequencing platforms (SOLiD, Illumina, and Roche 454. The suite employs logistic regression models in conjunction with user-adjustable cutoffs to accurately separate true SNPs and INDELs from sequencing and mapping errors with high sensitivity (96.7%. Conclusion We have implemented the Atlas2 Suite and applied it to 92 whole exome samples from the 1000 Genomes Project. The Atlas2 Suite is available for download at http://sourceforge.net/projects/atlas2/. In addition to a command line version, the suite has been integrated into the Genboree Workbench, allowing biomedical scientists with minimal informatics expertise to remotely call, view, and further analyze variants through a simple web interface. The existing genomic databases displayed via the Genboree browser also streamline the process from variant discovery to functional genomics analysis, resulting in an off-the-shelf toolkit for the broader community.

  8. The Variable Vector Countermeasure Suit (V2Suit for Space Habitation and Exploration

    Directory of Open Access Journals (Sweden)

    Kevin R Duda

    2015-04-01

    Full Text Available The Variable Vector Countermeasure Suit (V2Suit for Space Habitation and Exploration is a novel system concept that provides a platform for integrating sensors and actuators with daily astronaut intravehicular activities to improve health and performance, while reducing the mass and volume of the physiologic adaptation countermeasure systems, as well as the required exercise time during long-duration space exploration missions. The V2Suit system leverages wearable kinematic monitoring technology and uses inertial measurement units (IMUs and control moment gyroscopes (CMGs within miniaturized modules placed on body segments to provide a viscous resistance during movements against a specified direction of down – initially as a countermeasure to the sensorimotor adaptation performance decrements that manifest themselves while living and working in microgravity and during gravitational transitions during long-duration spaceflight, including post-flight recovery and rehabilitation. Several aspects of the V2Suit system concept were explored and simulated prior to developing a brassboard prototype for technology demonstration. This included a system architecture for identifying the key components and their interconnects, initial identification of key human-system integration challenges, development of a simulation architecture for CMG selection and parameter sizing, and the detailed mechanical design and fabrication of a module. The brassboard prototype demonstrates closed-loop control from down initialization through CMG actuation, and provides a research platform for human performance evaluations to mitigate sensorimotor adaptation, as well as a tool for determining the performance requirements when used as a musculoskeletal deconditioning countermeasure. This type of countermeasure system also has Earth benefits, particularly in gait or movement stabilization and rehabilitation.

  9. A highly integrated payload suite for Europa

    Science.gov (United States)

    Bentley, M.; Kraft, S.; Steiger, R.; Varlet, F.; Voigt, D.; Falkner, P.; Peacock, A.

    The four Galilean moons have always held a public and scientific fascination due to their diverse and dynamic nature. Amongst the moons, Europa holds a special place for its potential liquid water ocean, beneath its icy crust. This prospect of water places Europa on a par with Mars in terms of its viability for harbouring life. The first hints of Europa's icy surface came from early telescopic observations, which noted an unusually high albedo. Ground based spectroscopy then demonstrated absorption features of relatively pure water ice. Imagery from Pioneer, Voyager, and more recently Galileo confirm this, with the kilometre scale resolution of Galileo showing what appear to be ice flows. The lack of cratering, pointing to a geologically recent surface, furthermore suggests that liquid water could well exist today. The Galileo Europa Mission (GEM) provided much more extensive data during its 8 close orbits, including limited areas of extremely high resolution imaging (6 m), and radio science that confirmed the differentiated nature of Europa. However, many fundamental questions remain that can best be answered by a dedicated orbiter. For example: - Does a liquid water ocean exist? What it its extent vertically and laterally? - What is the composition of the crust? - What are the geological processes operating? The importance of these most basic questions have inspired mission proposals from all of the major space agencies. In Europe, ESA have performed a study into a mission called the "Jupiter Minisat Explorer" in order to identify the key technologies that would have to be developed [1]. The key technological challenges are caused by the harsh Jovian radiation environment, the lack of solar energy available and the thermal problems of such a cold environment. Last, but not least, a payload must be designed that satisfies these requirements and is both low power and low mass. All of these factors dictate the use of a Highly Integrated Payload Suite (HIPS). Such a

  10. Efficiency of the operating room suite.

    Science.gov (United States)

    Weinbroum, Avi A; Ekstein, Perla; Ezri, Tiberiu

    2003-03-01

    The need to control high costs of running operating rooms while providing for timely patient care led us to assess the time wasted in the operating room (OR). OR use by two general surgery and two orthopedic departments in a metropolitan public hospital were analyzed, and the time elapsed when a scheduled OR remained unused or the patient was still awaiting surgery was measured. OR "time-waste" defined as the time in which the scheduled OR was not busy with the scheduled patient amounted to 79 hours over the 30-day study period (15% of total time). It was wasted owing to inappropriately prepared patients (12%), unavailability of surgeons (7%), insufficient nursing staff, anesthesiologists, or OR assignment to emergency surgery (59%), congestion of the postanesthesia care unit (10%), and delay in transport to the OR (2%) Another issue delineated was the frequent occurrence of surgical cases running longer than their scheduled time (termed "spill-over"), outrunning the staffing expectations after 3:00 PM and delaying admission of add-on and emergency procedures, adding 33% to the time wasted. A quality-assurance committee review resulted in implementation of new guidelines, and within 3 months several underlying causes were rectified, and time-waste and spill over time was reduced by 35%. Surgical time predictions were also improved. Shortage of nurses and anesthesiologists, and OR emergency reassignment remained the major causes of OR waste time. Continuous surveillance on OR suite-patients' prompt care, repeated evaluation, and wise staff deployment-could maximize OR efficiency.

  11. A Granular Hierarchical Multiview Metrics Suite for Statecharts Quality

    Directory of Open Access Journals (Sweden)

    Mokhtar Beldjehem

    2013-01-01

    Full Text Available This paper presents a bottom-up approach for a multiview measurement of statechart size, topological properties, and internal structural complexity for understandability prediction and assurance purposes. It tackles the problem at different conceptual depths or equivalently at several abstraction levels. The main idea is to study and evaluate a statechart at different levels of granulation corresponding to different conceptual depth levels or levels of details. The higher level corresponds to a flat process view diagram (depth = 0, the adequate upper depth limit is determined by the modelers according to the inherent complexity of the problem under study and the level of detail required for the situation at hand (it corresponds to the all states view. For purposes of measurement, we proceed using bottom-up strategy starting with all state view diagram, identifying and measuring its deepest composite states constituent parts and then gradually collapsing them to obtain the next intermediate view (we decrement depth while aggregating measures incrementally, until reaching the flat process view diagram. To this goal we first identify, define, and derive a relevant metrics suite useful to predict the level of understandability and other quality aspects of a statechart, and then we propose a fuzzy rule-based system prototype for understandability prediction, assurance, and for validation purposes.

  12. Leader as critical thinker.

    Science.gov (United States)

    Lemire, Judith A

    2002-01-01

    A leader possess the critical-thinking knowledge and skills that provide the framework from which complex problem solving evolves. This article explores the leader as critical thinker, including a progressive plan for integrating critical-thinking concepts and associated teaching strategies into the RN to BSN and graduate curricula. To improve the critical thinking of nurses, educators must emphasize the cognitive and disposition aspects of critical thinking; promote active and sequential learning; role model critical thinking; design practical that focus on leadership and critical thinking; and conduct valid and consistent evaluations. The acquisition and application of critical thinking and problem-solving skills are progressive and refined through life-long learning and experience. This expertise begins with a sound knowledge base of the critical thinking composite and problem-solving strategies.

  13. CASS—CFEL-ASG software suite

    Science.gov (United States)

    Foucar, Lutz; Barty, Anton; Coppola, Nicola; Hartmann, Robert; Holl, Peter; Hoppe, Uwe; Kassemeyer, Stephan; Kimmel, Nils; Küpper, Jochen; Scholz, Mirko; Techert, Simone; White, Thomas A.; Strüder, Lothar; Ullrich, Joachim

    2012-10-01

    The Max Planck Advanced Study Group (ASG) at the Center for Free Electron Laser Science (CFEL) has created the CFEL-ASG Software Suite CASS to view, process and analyse multi-parameter experimental data acquired at Free Electron Lasers (FELs) using the CFEL-ASG Multi Purpose (CAMP) instrument Strüder et al. (2010) [6]. The software is based on a modular design so that it can be adjusted to accommodate the needs of all the various experiments that are conducted with the CAMP instrument. In fact, this allows the use of the software in all experiments where multiple detectors are involved. One of the key aspects of CASS is that it can be used either 'on-line', using a live data stream from the free-electron laser facility's data acquisition system to guide the experiment, and 'off-line', on data acquired from a previous experiment which has been saved to file. Program summary Program title: CASS Catalogue identifier: AEMP_v1_0 Program summary URL: http://cpc.cs.qub.ac.uk/summaries/AEMP_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: GNU General Public Licence, version 3 No. of lines in distributed program, including test data, etc.: 167073 No. of bytes in distributed program, including test data, etc.: 1065056 Distribution format: tar.gz Programming language: C++. Computer: Intel x86-64. Operating system: GNU/Linux (for information about restrictions see outlook). RAM: >8 GB Classification: 2.3, 3, 15, 16.4. External routines: Qt-Framework[1], SOAP[2], (optional HDF5[3], VIGRA[4], ROOT[5], QWT[6]) Nature of problem: Analysis and visualisation of scientific data acquired at Free-Electron-Lasers Solution method: Generalise data access and storage so that a variety of small programming pieces can be linked to form a complex analysis chain. Unusual features: Complex analysis chains can be built without recompiling the program Additional comments: An updated extensive documentation of CASS is available

  14. Newly designed launch and entry suit (LES) modeled by technician

    Science.gov (United States)

    1988-01-01

    Space shuttle orange launch and entry suit (LES), a partial pressure suit, is modeled by a technician. LES was designed for STS-26, the return to flight mission, and subsequent missions. Included in the crew escape system (CES) package are launch and entry helmet (LEH) with communications carrier (COMM CAP), parachute pack and harness, life raft, life preserver unit (LPU), LES gloves, suit oxygen manifold and valves, boots, and survival gear.

  15. Miniature Flexible Humidity Sensitive Patches for Space Suits Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Advanced space suit technologies demand improved, simplified, long-life regenerative sensing technologies, including humidity sensors, that exceed the performance of...

  16. Assessment of Suited Reach Envelope in an Underwater Environment

    Science.gov (United States)

    Kim, Han; Benson, Elizabeth; Bernal, Yaritza; Jarvis, Sarah; Meginnis, Ian; Rajulu, Sudhakar

    2017-01-01

    Predicting the performance of a crewmember in an extravehicular activity (EVA) space suit presents unique challenges. The kinematic patterns of suited motions are difficult to reproduce in gravity. Additionally, 3-D suited kinematics have been practically and technically difficult to quantify in an underwater environment, in which crewmembers are commonly trained and assessed for performance. The goal of this study is to develop a hardware and software system to predictively evaluate the kinematic mobility of suited crewmembers, by measuring the 3-D reach envelope of the suit in an underwater environment. This work is ultimately aimed at developing quantitative metrics to compare the mobility of the existing Extravehicular Mobility Unit (EMU) to newly developed space suit, such as the Z-2. The EMU has been extensively used at NASA since 1981 for EVA outside the Space Shuttle and International Space Station. The Z-2 suit is NASA's newest prototype space suit. The suit is comprised of new upper torso and lower torso architectures, which were designed to improve test subject mobility.

  17. Spherical Coordinate Systems for Streamlining Suited Mobility Analysis

    Science.gov (United States)

    Benson, Elizabeth; Cowley, Matthew; Harvill, Lauren; Rajulu. Sudhakar

    2015-01-01

    Introduction: When describing human motion, biomechanists generally report joint angles in terms of Euler angle rotation sequences. However, there are known limitations in using this method to describe complex motions such as the shoulder joint during a baseball pitch. Euler angle notation uses a series of three rotations about an axis where each rotation is dependent upon the preceding rotation. As such, the Euler angles need to be regarded as a set to get accurate angle information. Unfortunately, it is often difficult to visualize and understand these complex motion representations. It has been shown that using a spherical coordinate system allows Anthropometry and Biomechanics Facility (ABF) personnel to increase their ability to transmit important human mobility data to engineers, in a format that is readily understandable and directly translatable to their design efforts. Objectives: The goal of this project was to use innovative analysis and visualization techniques to aid in the examination and comprehension of complex motions. Methods: This project consisted of a series of small sub-projects, meant to validate and verify a new method before it was implemented in the ABF's data analysis practices. A mechanical test rig was built and tracked in 3D using an optical motion capture system. Its position and orientation were reported in both Euler and spherical reference systems. In the second phase of the project, the ABF estimated the error inherent in a spherical coordinate system, and evaluated how this error would vary within the reference frame. This stage also involved expanding a kinematic model of the shoulder to include the rest of the joints of the body. The third stage of the project involved creating visualization methods to assist in interpreting motion in a spherical frame. These visualization methods will be incorporated in a tool to evaluate a database of suited mobility data, which is currently in development. Results: Initial results

  18. [Validation of APACHE II and SOFA scores in 2 cohorts of patients with suspected infection and sepsis, not admitted to critical care units].

    Science.gov (United States)

    Cerro, L; Valencia, J; Calle, P; León, A; Jaimes, F

    2014-03-01

    To validate the APACHE II and SOFA scores in patients with suspected infection in clinical settings other than intensive care units. A secondary analysis was performed on 2,530 adult patients participating in 2 cohort studies, with suspected infection as admission diagnosis within the first 24 h of hospitalization. The performance of both scoring systems was studied in order to set calibration and discrimination, respectively, on the outcomes such as mortality, admission to Intensive Care Unit, development of septic shock, or multiple organ dysfunctions. The AUC-ROC values for mortality at discharge and on day 28 in the first cohort were around 0.50 for the SOFA and APACHE II scores; whereas for the second cohort the discrimination value was around 0.70. Calibration of both scoring systems for primary outcomes, according to Hosmer-Lemeshow test, showed p>.05 in the first cohort; while in the second cohort calibration it only showed a p>.05 in the case of the SOFA for mortality at hospital discharge. This validation study of SOFA and APACHE II scores in patients with suspected infection in-hospital units other than the Intensive Care Unit, showed no consistent performance for calibration and discrimination. Its application in emergency and in-hospital patients is limited. Copyright © 2013 Sociedad Española de Anestesiología, Reanimación y Terapéutica del Dolor. Published by Elsevier España. All rights reserved.

  19. Criticality safety enhancements for SCALE 6.2 and beyond

    Energy Technology Data Exchange (ETDEWEB)

    Rearden, Bradley T. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Bekar, Kursat B. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Celik, Cihangir [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Clarno, Kevin T. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Dunn, Michael E. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Hart, Shane W. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Ibrahim, Ahmad M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Johnson, Seth R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Langley, Brandon R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Lefebvre, Jordan P. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Lefebvre, Robert A. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Marshall, William J. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Mertyurek, Ugur [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Mueller, Don [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Peplow, Douglas E. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Perfetti, Christopher M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Petrie Jr, Lester M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Thompson, Adam B. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Wiarda, Dorothea [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Wieselquist, William A. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Williams, Mark L. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2015-09-01

    SCALE is a widely used suite of tools for nuclear systems modeling and simulation that provides comprehensive, verified and validated, user-friendly capabilities for criticality safety, reactor physics, radiation shielding, and sensitivity and uncertainty analysis. Since 1980, regulators, industry, and research institutions around the world have relied on SCALE for nuclear safety analysis and design. SCALE 6.2 provides several new capabilities and significant improvements in many existing features for criticality safety analysis. Enhancements are realized for nuclear data; multigroup resonance self-shielding; continuous-energy Monte Carlo analysis for sensitivity/uncertainty analysis, radiation shielding, and depletion; and graphical user interfaces. An overview of these capabilities is provided in this paper, and additional details are provided in several companion papers.

  20. The BRITNeY Suite: A Platfor for Experiments

    DEFF Research Database (Denmark)

    Westergaard, Michael

    2006-01-01

    This paper describes a platform, the BRITNeY Suite, for experimenting with Coloured Petri nets. The BRITNeY Suite provides access to data-structures and a simulator for Coloured Petri nets via a powerful scripting language and plug-in-mechanism, thereby making it easy to perform customized...

  1. A New Ablative Heat Shield Sensor Suite Project

    Science.gov (United States)

    Bose, Deepak

    2014-01-01

    A new sensor suite is developed to measure performance of ablative thermal protection systems used in planetary entry vehicles for robotic and human exploration. The new sensor suite measures ablation of the thermal protection system under extreme heating encountered during planetary entry. The sensor technology is compatible with a variety of thermal protection materials, and is applicable over a wide range of entry conditions.

  2. Nutritional risk assessment and cultural validation of the modified NUTRIC score in critically ill patients-A multicenter prospective cohort study.

    Science.gov (United States)

    Mendes, Rosa; Policarpo, Sara; Fortuna, Philip; Alves, Marta; Virella, Daniel; Heyland, Daren K

    2017-02-01

    Characterize the nutritional risk of critically ill patients with the modified NUTrition Risk in the Critically ill (NUTRIC) score. National, multicenter, prospective, observational study conducted in 15 polyvalent Portuguese intensive care unit (ICU), during 6 months. Adult patients were eligible. Those transferred from another ICU or readmitted, brain dead at admission, and with length of ICU stay (LOS) of 72 hours or less were excluded. NUTRIC score was calculated at admission; scores ≥5 represent a high nutritional risk. Main outcome was mortality from all causes at 28 days after admission to the ICU; LOS and days without mechanical ventilation (days free of MV) were secondary outcomes. From 2061 admissions, 1143 patients were considered, mostly males (n = 744, 64.7%) with median (P25-P75) age of 64 (51-75). Patients at high nutritional risk were 555 (48.6%). High NUTRIC score was associated with longer LOS (P nutritional risk. NUTRIC score was strongly associated with main clinical outcomes. Copyright © 2016 Elsevier Inc. All rights reserved.

  3. Planetary Suit Hip Bearing Model for Predicting Design vs. Performance

    Science.gov (United States)

    Cowley, Matthew S.; Margerum, Sarah; Harvil, Lauren; Rajulu, Sudhakar

    2011-01-01

    Designing a planetary suit is very complex and often requires difficult trade-offs between performance, cost, mass, and system complexity. In order to verifying that new suit designs meet requirements, full prototypes must eventually be built and tested with human subjects. Using computer models early in the design phase of new hardware development can be advantageous, allowing virtual prototyping to take place. Having easily modifiable models of the suit hard sections may reduce the time it takes to make changes to the hardware designs and then to understand their impact on suit and human performance. A virtual design environment gives designers the ability to think outside the box and exhaust design possibilities before building and testing physical prototypes with human subjects. Reductions in prototyping and testing may eventually reduce development costs. This study is an attempt to develop computer models of the hard components of the suit with known physical characteristics, supplemented with human subject performance data. Objectives: The primary objective was to develop an articulating solid model of the Mark III hip bearings to be used for evaluating suit design performance of the hip joint. Methods: Solid models of a planetary prototype (Mark III) suit s hip bearings and brief section were reverse-engineered from the prototype. The performance of the models was then compared by evaluating the mobility performance differences between the nominal hardware configuration and hardware modifications. This was accomplished by gathering data from specific suited tasks. Subjects performed maximum flexion and abduction tasks while in a nominal suit bearing configuration and in three off-nominal configurations. Performance data for the hip were recorded using state-of-the-art motion capture technology. Results: The results demonstrate that solid models of planetary suit hard segments for use as a performance design tool is feasible. From a general trend perspective

  4. CriticalEd

    DEFF Research Database (Denmark)

    Kjellberg, Caspar Mølholt; Meredith, David

    2014-01-01

    The best text method is commonly applied among music scholars engaged in producing critical editions. In this method, a comment list is compiled, consisting of variant readings and editorial emendations. This list is maintained by inserting the comments into a document as the changes are made...... such as Sibelius or Finale. It was hypothesized that it would be possible to develop a Sibelius plug-in, written in Manuscript 6, that would improve the critical editing work flow, but it was found that the capabilities of this scripting language were insufficient. Instead, a 3-part system was designed and built...

  5. Assessment of Critical Loads Instigating Voltage Instability in Transmission Network using Novel Load Tracing Capable Index LQP_LT and PSS/E Tools Validation

    Directory of Open Access Journals (Sweden)

    Renuga Verayiah

    2016-12-01

    Full Text Available Existing power systems are significantly susceptible to voltage instability problem since such systems are stressed with the huge power transfers across the grids. Various power tracing techniques have been developed but are limited to the application of transmission service pricing in a deregulated environment. This paper presents a novel approach which adopts the power tracing theory for voltage stability improvement via the development of reactive power tracing capable index, named as LQP_LT. The index is tested in IEEE 14 Test Bus System in various contingency states and comparison were made using the results obtained from the industrial graded software PSS/E in evaluating the critical transmission lines in severe contingencies. The LQP_LT index is found to be effective in determining the weak load buses in a transmission system which ultimately responsible to cause stressed lines and overall voltage instability in a system.

  6. Identifying critically ill patients who benefit the most from nutrition therapy: the development and initial validation of a novel risk assessment tool

    Science.gov (United States)

    2011-01-01

    Introduction To develop a scoring method for quantifying nutrition risk in the intensive care unit (ICU). Methods A prospective, observational study of patients expected to stay > 24 hours. We collected data for key variables considered for inclusion in the score which included: age, baseline APACHE II, baseline SOFA score, number of comorbidities, days from hospital admission to ICU admission, Body Mass Index (BMI) protein (CRP) levels. Approximate quintiles of each variable were assigned points based on the strength of their association with 28 day mortality. Results A total of 597 patients were enrolled in this study. Based on the statistical significance in the multivariable model, the final score used all candidate variables except BMI, CRP, PCT, estimated percentage oral intake and weight loss. As the score increased, so did mortality rate and duration of mechanical ventilation. Logistic regression demonstrated that nutritional adequacy modifies the association between the score and 28 day mortality (p = 0.01). Conclusions This scoring algorithm may be helpful in identifying critically ill patients most likely to benefit from aggressive nutrition therapy. PMID:22085763

  7. A Secure Communication Suite for Underwater Acoustic Sensor Networks

    Directory of Open Access Journals (Sweden)

    Angelica Lo Duca

    2012-11-01

    Full Text Available In this paper we describe a security suite for Underwater Acoustic Sensor Networks comprising both fixed and mobile nodes. The security suite is composed of a secure routing protocol and a set of cryptographic primitives aimed at protecting the confidentiality and the integrity of underwater communication while taking into account the unique characteristics and constraints of the acoustic channel. By means of experiments and simulations based on real data, we show that the suite is suitable for an underwater networking environment as it introduces limited, and sometimes negligible, communication and power consumption overhead.

  8. A secure communication suite for underwater acoustic sensor networks.

    Science.gov (United States)

    Dini, Gianluca; Lo Duca, Angelica

    2012-11-07

    In this paper we describe a security suite for Underwater Acoustic Sensor Networks comprising both fixed and mobile nodes. The security suite is composed of a secure routing protocol and a set of cryptographic primitives aimed at protecting the confidentiality and the integrity of underwater communication while taking into account the unique characteristics and constraints of the acoustic channel. By means of experiments and simulations based on real data, we show that the suite is suitable for an underwater networking environment as it introduces limited, and sometimes negligible, communication and power consumption overhead.

  9. Enabling interoperability in Geoscience with GI-suite

    Science.gov (United States)

    Boldrini, Enrico; Papeschi, Fabrizio; Santoro, Mattia; Nativi, Stefano

    2015-04-01

    GI-suite is a brokering framework targeting interoperability of heterogeneous systems in the Geoscience domain. The framework is composed by different brokers each one focusing on a specific functionality: discovery, access and semantics (i.e. GI-cat, GI-axe, GI-sem). The brokering takes place between a set of heterogeneous publishing services and a set of heterogeneous consumer applications: the brokering target is represented by resources (e.g. coverages, features, or metadata information) required to seamlessly flow from the providers to the consumers. Different international and community standards are now supported by GI-suite, making possible the successful deployment of GI-suite in many international projects and initiatives (such as GEOSS, NSF BCube and several EU funded projects). As for the publisher side more than 40 standards and implementations are supported (e.g. Dublin Core, OAI-PMH, OGC W*S, Geonetwork, THREDDS Data Server, Hyrax Server, etc.). The support for each individual standard is provided by means of specific GI-suite components, called accessors. As for the consumer applications side more than 15 standards and implementations are supported (e.g. ESRI ArcGIS, Openlayers, OGC W*S, OAI-PMH clients, etc.). The support for each individual standard is provided by means of specific profiler components. The GI-suite can be used in different scenarios by different actors: - A data provider having a pre-existent data repository can deploy and configure GI-suite to broker it and making thus available its data resources through different protocols to many different users (e.g. for data discovery and/or data access) - A data consumer can use GI-suite to discover and/or access resources from a variety of publishing services that are already publishing data according to well-known standards. - A community can deploy and configure GI-suite to build a community (or project-specific) broker: GI-suite can broker a set of community related repositories and

  10. A Secure Communication Suite for Underwater Acoustic Sensor Networks

    Science.gov (United States)

    Dini, Gianluca; Duca, Angelica Lo

    2012-01-01

    In this paper we describe a security suite for Underwater Acoustic Sensor Networks comprising both fixed and mobile nodes. The security suite is composed of a secure routing protocol and a set of cryptographic primitives aimed at protecting the confidentiality and the integrity of underwater communication while taking into account the unique characteristics and constraints of the acoustic channel. By means of experiments and simulations based on real data, we show that the suite is suitable for an underwater networking environment as it introduces limited, and sometimes negligible, communication and power consumption overhead. PMID:23202204

  11. Test suite for the archiver of a SCADA system

    CERN Document Server

    Voitier, Axel

    2009-01-01

    Topic: The group responsible for providing the main control system applications for all machines at CERN has to validate that every piece of the control systems used will be reliable and fully functional when the LHC and its experiments will do collisions of particles. CERN use PVSS from ETM/Siemens for the SCADA part of its control systems. This software has a component dedicated to archive into a centralised Oracle database values and commands of tenth of thousands hardware devices. This component, named RDB, has to be tested and validated in terms of functionality and performance. The need is high for that because archiving is a critical part of the control systems. In case of an incident on one of the machine, it will be unacceptable to not benefit of archiving the machine context at this moment just because of a bug in RDB. Bugs have to be spotted and reported to ETM. Results: The proposed solution is an extensible automatic tester able to evaluate currently around 160 cases of potential bugs. Since the ...

  12. Multipurpose Cooling Garment for Improved Space Suit Environmental Control Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Future manned space exploration missions will require space suits with capabilities beyond the current state of the art. Portable Life Support Systems for these...

  13. Pilot Fullerton dons ejection escape suit (EES) on middeck

    Science.gov (United States)

    1982-01-01

    Pilot Fullerton dons ejection escape suit (EES) (high altitude pressure garment) life preserver unit (LPU) on forward port side of middeck above potable water tank. Fullerton also adjusts lapbelt fitting and helmet holddown strap.

  14. The fractal harmonic law and its application to swimming suit

    Directory of Open Access Journals (Sweden)

    Kong Hai-Yan

    2012-01-01

    Full Text Available Decreasing friction force between a swimming suit and water is the key factor to design swimming suits. Water continuum mechanics forbids discontinuous fluids, but in angstrom scale water is indeed discontinuous. Swimming suit is smooth on large scale, but it is discontinuous when the scale becomes smaller. If fractal dimensions of swimming suit and water are the same, a minimum of friction force is predicted, which means fractal harmonization. In the paper, fractal harmonic law is introduced to design a swimsuit whose surface fractal dimensions on a macroscopic scale should be equal to or closed to the water's fractal dimensions on an Angstrom scale. Various possible microstructures of fabric are analyzed and a method to obtain perfect fractal structure of fabric is proposed by spraying nanofibers to its surface. The fractal harmonic law can be used to design a moving surface with a minimal friction.

  15. U.S. Climate Normals Product Suite (1981-2010)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Climate Normals are a large suite of data products that provide users with many tools to understand typical climate conditions for thousands of locations...

  16. EVA Physiology and Medical Considerations Working in the Suit

    Science.gov (United States)

    Parazynski, Scott

    2012-01-01

    This "EVA Physiology and Medical Considerations Working in the Suit" presentation covers several topics related to the medical implications and physiological effects of suited operations in space from the perspective of a physician with considerable first-hand Extravehicular Activity (EVA) experience. Key themes include EVA physiology working in a pressure suit in the vacuum of space, basic EVA life support and work support, Thermal Protection System (TPS) inspections and repairs, and discussions of the physical challenges of an EVA. Parazynski covers the common injuries and significant risks during EVAs, as well as physical training required to prepare for EVAs. He also shares overall suit physiological and medical knowledge with the next generation of Extravehicular Mobility Unit (EMU) system designers.

  17. Nonventing Thermal and Humidity Control for EVA Suits Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Future manned space exploration missions will require space suits with capabilities beyond the current state of the art. Portable Life Support Systems for these...

  18. CAMEO (Computer-Aided Management of Emergency Operations) Software Suite

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CAMEO is the umbrella name for a system of software applications used widely to plan for and respond to chemical emergencies. All of the programs in the suite work...

  19. Prokofiev: Romeo and Juliet - Suite N1 / Ivan March

    Index Scriptorium Estoniae

    March, Ivan

    1990-01-01

    Uuest heliplaadist "Prokofiev: Romeo and Juliet - Suite N1, Op.64b, N2, Op.64c. Philharmonia Orchestra, Barry Wordsworth" Collins Classics cassette 1116-4. CD. Võrreldud Neeme Järvi plaadistustega 1116-2

  20. Tchaikovsky, P.: Orchestral Suite no. 3 op. 55 / Terry Williams

    Index Scriptorium Estoniae

    Williams, Terry

    1996-01-01

    Uuest heliplaadist "Tchaikovsky, P.: Orchestral Suite no. 3 op. 55. Francesca di Rimini op. 32. Detroit Symphony Orchestra, Neeme Järvi". Chandos CHAN 9 419, distribution Media 7 (CD: 160F). TT: 1h 09'20"

  1. Arensky. Silhouettes (Suite N 2), Op. 23 / Jonathan Swain

    Index Scriptorium Estoniae

    Swain, Jonathan

    1991-01-01

    Uuest heliplaadist "Arensky. Silhouettes (Suite N 2), Op. 23. Scrjabin. Symphony N 3 in C minor, Op. 43 "Le divin poeme". Danish National Radio Symphony Orchestra. Neeme Järvi. Chandos cassette ABTD 1509; CD CHAN 8898 (66 minutes)

  2. Touring the Tomato: A Suite of Chemistry Laboratory Experiments

    Science.gov (United States)

    Sarkar, Sayantani; Chatterjee, Subhasish; Medina, Nancy; Stark, Ruth E.

    2013-01-01

    An eight-session interdisciplinary laboratory curriculum has been designed using a suite of analytical chemistry techniques to study biomaterials derived from an inexpensive source such as the tomato fruit. A logical

  3. Prokofiev: War and Peace - Symphonic Suite (arr. Palmer) / Ivan March

    Index Scriptorium Estoniae

    March, Ivan

    1993-01-01

    Uuest heliplaadist "Prokofiev: War and Peace - Symphonic Suite (arr. Palmer), Summer Night, Op. 123. Russian Overture, Op. 72. Philharmonia Orchestra / Neeme Järvi. Chandos ABTD 1598 CHAN9096 (64 minutes:DDD) Igor - Polovtsian Dances

  4. Compact, Efficient, and Reliable Ventilation Fan for EVA Suits Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Advanced EVA suits for space exploration will need a portable life support system (PLSS) that is compact, lightweight, highly reliable, and meets stringent...

  5. Instrumented Suit Hard Upper Torso (HUT) for Ergonomic Assessment Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Crewmembers undergo strenuous suited training for EVA missions. Frequent exposure to such activities can eventually lead to Cumulative Trauma Disorders/Injuries and...

  6. JFK conspiracy buff settles libel suit with Dallas Morning News

    National Research Council Canada - National Science Library

    Fitzgerald, Mark

    1995-01-01

      Charles Crenshaw, a surgeon who helped treat mortally wounded John F. Kennedy and Lee Harvey Oswald and later became an assassination conspiracy theorist, has settled his libel suit against the Dallas Morning News...

  7. Coupled Human-Space Suit Mobility Studies Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The space suit is arguably the most intimate piece of space flight hardware yet we know surprisingly little about the interactions between the astronaut and this...

  8. Cosmonaut Sergei Krikalev receives assistance from suit technician

    Science.gov (United States)

    1994-01-01

    Sergei Krikalev, alternative mission specialist for STS-63, gets help from Dawn Mays, a Boeing suit technician. The cosmonaut was about to participate in a training session at JSC's Weightless Environment Training Facility (WETF). Wearing the training version of the extravehicular mobility unit (EMU) space suit, weighted to allow neutral buoyancy in the 25 feet deep WETF pool, Krikalev minutes later was underwater simulating a contingency spacewalk, or extravehicular activity (EVA).

  9. Design of a Self Don/Doffing Rear Entry Planetary Suit to Interface with a Suit Port/Lock Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Under Phase 1 of subject SBIR, Air-Lock, Incorporated will design a self donning and doffing Rear Entry Hard Upper Torso (REHUT) that interfaces with a suit port....

  10. Spherical Coordinate Systems for Streamlining Suited Mobility Analysis

    Science.gov (United States)

    Benson, Elizabeth; Cowley, Matthew S.; Harvill. Lauren; Rajulu, Sudhakar

    2014-01-01

    When describing human motion, biomechanists generally report joint angles in terms of Euler angle rotation sequences. However, there are known limitations in using this method to describe complex motions such as the shoulder joint during a baseball pitch. Euler angle notation uses a series of three rotations about an axis where each rotation is dependent upon the preceding rotation. As such, the Euler angles need to be regarded as a set to get accurate angle information. Unfortunately, it is often difficult to visualize and understand these complex motion representations. One of our key functions is to help design engineers understand how a human will perform with new designs and all too often traditional use of Euler rotations becomes as much of a hindrance as a help. It is believed that using a spherical coordinate system will allow ABF personnel to more quickly and easily transmit important mobility data to engineers, in a format that is readily understandable and directly translatable to their design efforts. Objectives: The goal of this project is to establish new analysis and visualization techniques to aid in the examination and comprehension of complex motions. Methods: This project consisted of a series of small sub-projects, meant to validate and verify the method before it was implemented in the ABF's data analysis practices. The first stage was a proof of concept, where a mechanical test rig was built and instrumented with an inclinometer, so that its angle from horizontal was known. The test rig was tracked in 3D using an optical motion capture system, and its position and orientation were reported in both Euler and spherical reference systems. The rig was meant to simulate flexion/extension, transverse rotation and abduction/adduction of the human shoulder, but without the variability inherent in human motion. In the second phase of the project, the ABF estimated the error inherent in a spherical coordinate system, and evaluated how this error would

  11. Application of Fault Management Theory to the Quantitative Selection of a Launch Vehicle Abort Trigger Suite

    Science.gov (United States)

    Lo, Yunnhon; Johnson, Stephen B.; Breckenridge, Jonathan T.

    2014-01-01

    This paper describes the quantitative application of the theory of System Health Management and its operational subset, Fault Management, to the selection of Abort Triggers for a human-rated launch vehicle, the United States' National Aeronautics and Space Administration's (NASA) Space Launch System (SLS). The results demonstrate the efficacy of the theory to assess the effectiveness of candidate failure detection and response mechanisms to protect humans from time-critical and severe hazards. The quantitative method was successfully used on the SLS to aid selection of its suite of Abort Triggers.

  12. Development of Advanced Suite of Deterministic Codes for VHTR Physics Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Kang Seog; Cho, J. Y.; Lee, K. H. (and others)

    2007-07-15

    Advanced Suites of deterministic codes for VHTR physics analysis has been developed for detailed analysis of current and advanced reactor designs as part of a US-ROK collaborative I-NERI project. These code suites include the conventional 2-step procedure in which a few group constants are generated by a transport lattice calculation, and the reactor physics analysis is performed by a 3-dimensional diffusion calculation, and a whole core transport code that can model local heterogeneities directly at the core level. Particular modeling issues in physics analysis of the gas-cooled VHTRs were resolved, which include a double heterogeneity of the coated fuel particles, a neutron streaming in the coolant channels, a strong core-reflector interaction, and large spectrum shifts due to changes of the surrounding environment, temperature and burnup. And the geometry handling capability of the DeCART code were extended to deal with the hexagonal fuel elements of the VHTR core. The developed code suites were validated and verified by comparing the computational results with those of the Monte Carlo calculations for the benchmark problems.

  13. Auto-calibration system of EMG sensor suit

    Science.gov (United States)

    Suzuki, Yousuke; Tanaka, Takayuki; Feng, Maria Q.

    2005-12-01

    Biogenic measurement has been studied as a robot's interface. We have studied the wearable sensor suit as a robot's interface. Some kinds of sensor disks are embedded the sensor suit to the wet suit-like material. The sensor suit measures a wearing person's joint, and muscular activity. In this report, we aim to establish an auto-calibration system for measuring joint torques by using EMG sensors based on neural network and sensor disks of a lattice. The Torque presumption was performed using the share neural network, which learned the data that formed the whole subject's teacher data. Additional training of the share neural network was carried out using the individual teaching data. As a result, that was able to do the neural network training in short time, high probability and high accuracy to training of initial neural network. Moreover, high-presumed accuracy was able to be acquired by this method Next, Sensor disks of a lattice was developed. EMG is measurable, checking the state of an electrode by that can measure biogenic impedance. That was able to measure EMG by sensor disks which has low impedance We measured EMG and joint torque by trial production sensor suit and torque measuring instrument. The predominancy of the torque presumption using the share neural network was check. We proposed Measurement system, which consists sensor disk of lattice. Experimental results show the proposed method is effective for the auto-calibration.

  14. Towards the Integration of APECS and VE-Suite for Virtual Power Plant Co-Simulation

    Energy Technology Data Exchange (ETDEWEB)

    Zitney, S.E.; McCorkle, D. (Iowa State University, Ames, IA); Yang, C. (Reaction Engineering International, Salt Lake City, UT); Jordan, T.; Swensen, D. (Reaction Engineering International, Salt Lake City, UT); Bryden, M. (Iowa State University, Ames, IA)

    2007-05-01

    Process modeling and simulation tools are widely used for the design and operation of advanced power generation systems. These tools enable engineers to solve the critical process systems engineering problems that arise throughout the lifecycle of a power plant, such as designing a new process, troubleshooting a process unit or optimizing operations of the full process. To analyze the impact of complex thermal and fluid flow phenomena on overall power plant performance, the Department of Energy’s (DOE) National Energy Technology Laboratory (NETL) has developed the Advanced Process Engineering Co-Simulator (APECS). The APECS system is an integrated software suite that combines process simulation (e.g., Aspen Plus) and high-fidelity equipment simulations such as those based on computational fluid dynamics (CFD), together with advanced analysis capabilities including case studies, sensitivity analysis, stochastic simulation for risk/uncertainty analysis, and multi-objective optimization. In this paper we discuss the initial phases of the integration of the APECS system with the immersive and interactive virtual engineering software, VE-Suite, developed at Iowa State University and Ames Laboratory. VE-Suite uses the ActiveX (OLE Automation) controls in the Aspen Plus process simulator wrapped by the CASI library developed by Reaction Engineering International to run process/CFD co-simulations and query for results. This integration represents a necessary step in the development of virtual power plant co-simulations that will ultimately reduce the time, cost, and technical risk of developing advanced power generation systems.

  15. Teaching and measuring critical thinking.

    Science.gov (United States)

    Staib, Sharon

    2003-11-01

    Nurse educators are under pressure to show critical thinking as a program outcome. Many different strategies have been suggested for developing critical thinking among nursing students. It is easy to believe these strategies increase critical thinking, but not all have actually been measured for reliability or validity. Based on an exhaustive literature search, the author attempted to identify teaching strategies that are being used to increase critical thinking and how effective those strategies have been.

  16. Testing of Alternative Materials for Advanced Suit Bladders

    Science.gov (United States)

    Bue, Grant; Orndoff, Evelyne; Makinen, Janice; Tang, Henry

    2011-01-01

    Several candidate advanced pressure bladder membrane materials have been developed for NASA Johnson Space Center by DSM Biomedical for selective permeability of carbon dioxide and water vapor. These materials were elasthane and two other formulations of thermoplastic polyether polyurethane. Each material was tested in two thicknesses for permeability to carbon dioxide, oxygen and water vapor. Although oxygen leaks through the suit bladder would amount to only about 60 cc/hr in a full size suit, significant amounts of carbon dioxide would not be rejected by the system to justify its use. While the ratio of carbon dioxide to oxygen permeability is about 48 to 1, this is offset by the small partial pressure of carbon dioxide in acceptable breathing atmospheres of the suit. Humidity management remains a possible use of the membranes depending on the degree to which the water permeability is inhibited by cations in the sweat. Tests are underway to explore cation fouling from sweat.

  17. NetSuite OneWorld Implementation 2011 R2

    CERN Document Server

    Foydel, Thomas

    2011-01-01

    This book is a focused, step-by step tutorial that shows you how to successfully implement NetSuite OneWorld into your organization. It is written in an easy-to-read style, with a strong emphasis on real-world, practical examples with step-by-step explanations. The book focuses on NetSuite OneWorld 2011 R1. If you are an application administrator, business analyst, project team member or business process owner who wants to implement NetSuite OneWorld into your organization, then this book is for you. This book might also be useful if you are a business manager considering a new system for your

  18. Drug related critical incidents.

    Science.gov (United States)

    Khan, F A; Hoda, M Q

    2005-01-01

    Drug related incidents are a common form of reported medical errors. This paper reviews the critical incidents related to drug errors reported from the main operating theatre suite in a teaching hospital in a developing country from January 1997 to December 2002. Each report was evaluated individually by two reviewers using a structured process. During this period, 44 874 anaesthetics were administered; 768 critical incidents were reported, 165 (21%) of which were related to drug errors. Underdosage, side-effect/drug reaction and syringe swap were the most common. A total of 76% were classified as preventable; 56% due to human error and 19% due to system error. High risk incidents accounted for 10% of all drug errors and most of these were related to the use of neuromuscular blocking drugs. This analysis has been found useful in addressing some issues about priorities.

  19. Ultraviolet Testing of Space Suit Materials for Mars

    Science.gov (United States)

    Larson, Kristine; Fries, Marc

    2017-01-01

    Human missions to Mars may require radical changes in the approach to extra-vehicular (EVA) suit design. A major challenge is the balance of building a suit robust enough to complete multiple EVAs under intense ultraviolet (UV) light exposure without losing mechanical strength or compromising the suit's mobility. To study how the materials degrade on Mars in-situ, the Jet Propulsion Laboratory (JPL) invited the Advanced Space Suit team at NASA's Johnson Space Center (JSC) to place space suit materials on the Scanning Habitable Environments with Raman & Luminescence for Organics and Chemicals (SHERLOC) instrument's calibration target of the Mars 2020 rover. In order to select materials for the rover and understand the effects from Mars equivalent UV exposure, JSC conducted ground testing on both current and new space suit materials when exposed to 2500 hours of Mars mission equivalent UV. To complete this testing, JSC partnered with NASA's Marshall Space Flight Center to utilize their UV vacuum chambers. Materials tested were Orthofabric, polycarbonate, Teflon, Dacron, Vectran, spectra, bladder, nGimat coated Teflon, and nGimat coated Orthofabric. All samples were measured for mass, tensile strength, and chemical composition before and after radiation. Mass loss was insignificant (less than 0.5%) among the materials. Most materials loss tensile strength after radiation and became more brittle with a loss of elongation. Changes in chemical composition were seen in all radiated materials through Spectral Analysis. Results from this testing helped select the materials that will fly on the Mars 2020 rover. In addition, JSC can use this data to create a correlation to the chemical changes after radiation-which is what the rover will send back while on Mars-to the mechanical changes, such as tensile strength.

  20. TERROR IN A THREE PIECE SUIT and ORCHIS. Music Scores

    OpenAIRE

    Belousova, Sofya

    2012-01-01

    ABSTRACT OF THE THESISTERROR IN A THREE PIECE SUITandORCHISMUSIC SCORESbySofya BelousovaMaster of Arts in Music University of California, Los Angeles, 2012 Professor Ian Krouse, ChairMy Master's Thesis revolves around "Terror In A Three Piece Suit", a short animated film, and an excerpt from "Orchis", a contemporary ballet. TERROR IN A THREE PIECE SUIT is a wonderful short animated film directed by Ariel Goldberg. The film develops the story of a clerk with an overactive mind who imagines mon...

  1. ANTP Protocol Suite Software Implementation Architecture in Python

    Science.gov (United States)

    2011-06-03

    lasting stable end-to-end paths do not exist. The remainder of this paper is organized as follows: Section II gives the background of the ANTP suite...and gives future directions for this work. II . BACKGROUND This section gives an overview of the protocols found in the ANTP suite, as well as the...represented as GeolocationTuple. The AeroRP class has two public functions designed to be used by AeroNP clases : • next–hop is a function that determines the

  2. STS-88 Mission Specialist Krikalev suits up for launch

    Science.gov (United States)

    1998-01-01

    STS-88 Mission Specialist Sergei Konstantinovich Krikalev gets assistance from suit technician George Brittingham while donning his orange launch and entry suit in the Operations and Checkout Building. STS-88 will be Krikalev's fourth spaceflight, but only his second on the Space Shuttle. He also twice flew on long- duration missions aboard the Russian Space Station Mir. Krikalev and the five other STS-88 crew members will depart shortly for Launch Pad 39A where the Space Shuttle Endeavour is poised for liftoff on the first U.S. mission dedicated to the assembly of the International Space Station.

  3. Extending the GI Brokering Suite to Support New Interoperability Specifications

    Science.gov (United States)

    Boldrini, E.; Papeschi, F.; Santoro, M.; Nativi, S.

    2014-12-01

    The GI brokering suite provides the discovery, access, and semantic Brokers (i.e. GI-cat, GI-axe, GI-sem) that empower a Brokering framework for multi-disciplinary and multi-organizational interoperability. GI suite has been successfully deployed in the framework of several programmes and initiatives, such as European Union funded projects, NSF BCube, and the intergovernmental coordinated effort Global Earth Observation System of Systems (GEOSS). Each GI suite Broker facilitates interoperability for a particular functionality (i.e. discovery, access, semantic extension) among a set of brokered resources published by autonomous providers (e.g. data repositories, web services, semantic assets) and a set of heterogeneous consumers (e.g. client applications, portals, apps). A wide set of data models, encoding formats, and service protocols are already supported by the GI suite, such as the ones defined by international standardizing organizations like OGC and ISO (e.g. WxS, CSW, SWE, GML, netCDF) and by Community specifications (e.g. THREDDS, OpenSearch, OPeNDAP, ESRI APIs). Using GI suite, resources published by a particular Community or organization through their specific technology (e.g. OPeNDAP/netCDF) can be transparently discovered, accessed, and used by different Communities utilizing their preferred tools (e.g. a GIS visualizing WMS layers). Since Information Technology is a moving target, new standards and technologies continuously emerge and are adopted in the Earth Science context too. Therefore, GI Brokering suite was conceived to be flexible and accommodate new interoperability protocols and data models. For example, GI suite has recently added support to well-used specifications, introduced to implement Linked data, Semantic Web and precise community needs. Amongst the others, they included: DCAT: a RDF vocabulary designed to facilitate interoperability between Web data catalogs. CKAN: a data management system for data distribution, particularly used by

  4. Thinking Critically about Critical Thinking

    Science.gov (United States)

    Mulnix, Jennifer Wilson

    2012-01-01

    As a philosophy professor, one of my central goals is to teach students to think critically. However, one difficulty with determining whether critical thinking can be taught, or even measured, is that there is widespread disagreement over what critical thinking actually is. Here, I reflect on several conceptions of critical thinking, subjecting…

  5. Validation of Flight Critical Control Systems

    Science.gov (United States)

    1991-12-01

    1985. [8] Avizienis, A., and Lyu, M., "On the Effectiveness of Multiversion Software in Digital Avionics", AIAA Computers in Aerospace VI Conference...Experimentation and Modelling. NASA CR-165036, 1982. [12] Eckhardt, D. E.; and Lee, L. D.: A Theoretical Basis for the Analysis of Multiversion

  6. Aeromedical Evacuation Enroute Critical Care Validation Study

    Science.gov (United States)

    2015-02-27

    pelvis P P P P P P P P Task 41: Immobilize a fracture of the arm P P P P P P I I Task 43: Apply a REEL splint S S S S S S S S Pass Rate: 95% 92% 92% 92% 90...Immobilize the pelvis R² = 0.0033 17 18 19 20 21 22 23 24 25 26 27 60 65 70 75 80 Task 41: Immobilize a fracture of the arm or dislocated shoulder...26 27 60 65 70 75 80 Task 40: Immobilize the pelvis R² = 0.0031 17 18 19 20 21 22 23 24 25 26 27 60 65 70 75 80 Task 41: Immobilize a fracture of the

  7. Validation of a vortex ring wake model suited for aeroelastic simulations of floating wind turbines

    Science.gov (United States)

    de Vaal, J. B.; Hansen, M. O. L.; Moan, T.

    2014-12-01

    In order to evaluate aerodynamic loads on floating offshore wind turbines, advanced dynamic analysis tools are required. As a unified model that can represent both dynamic inflow and skewed inflow effects in it basic formulation, a wake model based on a vortex ring formulation is discussed. Such a model presents a good intermediate solution between computationally efficient but simple momentum balance methods and computationally expensive but complete computational fluid dynamics models. The model introduced is shown to be capable of modelling typical steady and unsteady test cases with reasonable accuracy.

  8. Pilot Fullerton dons EES anti-gravity suit lower torso on middeck

    Science.gov (United States)

    1982-01-01

    Pilot Fullerton dons ejection escape suit (EES) anti-gravity (anti-g) suit lower torso on forward port side middeck above potable water tank. Anti-g suit is an olive drab inner garment that complements EES.

  9. Suitport Feasibility: Development and Test of a Suitport and Space Suit for Human Pressurized Space Suit Donning Tests

    Science.gov (United States)

    Boyle, Robert M.; Mitchell, Kathryn; Allton, Charles; Ju, Hsing

    2012-01-01

    The suitport concept has been recently implemented as part of the small pressurized lunar rover (Currently the Space Exploration vehicle, or SEV) and the Multi-Mission Space Exploration Vehicle (MMSEV) concept demonstrator vehicle. Suitport replaces or augments the traditional airlock function of a spacecraft by providing a bulkhead opening, capture mechanism, and sealing system to allow ingress and egress of a space suit while the space suit remains outside of the pressurized volume of the spacecraft. This presents significant new opportunities to EVA exploration in both microgravity and surface environments. The suitport concept will enable three main improvements in EVA by providing reductions in: pre-EVA time from hours to less than thirty minutes; airlock consumables; contamination returned to the cabin with the EVA crewmember. To date, the first generation suitport has been tested with mockup suits on the rover cabins and pressurized on a bench top engineering unit. The work on the rover cabin has helped define the operational concepts and timelines, and has demonstrated the potential of suitport to save significant amounts of crew time before and after EVAs. The work with the engineering unit has successfully demonstrated the pressurizable seal concept including the ability to seal after the introduction and removal of contamination to the sealing surfaces. Using this experience, a second generation suitport was designed. This second generation suitport has been tested with a space suit prototype on the second generation MMSEV cabin, and testing is planned using the pressure differentials of the spacecraft. Pressurized testing will be performed using the JSC B32 Chamber B, a human rated vacuum chamber. This test will include human rated suitports, a suitport compatible prototype suit, and chamber modifications. This test will bring these three elements together in the first ever pressurized donning of a rear entry suit through a suitport. This paper presents

  10. DYNA3D/ParaDyn Regression Test Suite Inventory

    Energy Technology Data Exchange (ETDEWEB)

    Lin, Jerry I. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-09-01

    The following table constitutes an initial assessment of feature coverage across the regression test suite used for DYNA3D and ParaDyn. It documents the regression test suite at the time of preliminary release 16.1 in September 2016. The columns of the table represent groupings of functionalities, e.g., material models. Each problem in the test suite is represented by a row in the table. All features exercised by the problem are denoted by a check mark (√) in the corresponding column. The definition of “feature” has not been subdivided to its smallest unit of user input, e.g., algorithmic parameters specific to a particular type of contact surface. This represents a judgment to provide code developers and users a reasonable impression of feature coverage without expanding the width of the table by several multiples. All regression testing is run in parallel, typically with eight processors, except problems involving features only available in serial mode. Many are strictly regression tests acting as a check that the codes continue to produce adequately repeatable results as development unfolds; compilers change and platforms are replaced. A subset of the tests represents true verification problems that have been checked against analytical or other benchmark solutions. Users are welcomed to submit documented problems for inclusion in the test suite, especially if they are heavily exercising, and dependent upon, features that are currently underrepresented.

  11. Analysis of dynamics and fit of diving suits

    Science.gov (United States)

    Mahnic Naglic, M.; Petrak, S.; Gersak, J.; Rolich, T.

    2017-10-01

    Paper presents research on dynamical behaviour and fit analysis of customised diving suits. Diving suits models are developed using the 3D flattening method, which enables the construction of a garment model directly on the 3D computer body model and separation of discrete 3D surfaces as well as transformation into 2D cutting parts. 3D body scanning of male and female test subjects was performed with the purpose of body measurements analysis in static and dynamic postures and processed body models were used for construction and simulation of diving suits prototypes. All necessary parameters, for 3D simulation were applied on obtained cutting parts, as well as parameters values for mechanical properties of neoprene material. Developed computer diving suits prototypes were used for stretch analysis on areas relevant for body dimensional changes according to dynamic anthropometrics. Garment pressures against the body in static and dynamic conditions was also analysed. Garments patterns for which the computer prototype verification was conducted were used for real prototype production. Real prototypes were also used for stretch and pressure analysis in static and dynamic conditions. Based on the obtained results, correlation analysis between body changes in dynamic positions and dynamic stress, determined on computer and real prototypes, was performed.

  12. The Zoot Suit Riots: Exploring Social Issues in American History

    Science.gov (United States)

    Chiodo, John J.

    2013-01-01

    The Zoot Suit Riots provide students with a case study of social unrest in American history. The influx of Latinos into the Los Angeles area prior to World War II created high levels of social unrest between Mexican Americans, military servicemen, and local residences. With large numbers of soldiers stationed in the area during the Second World…

  13. ASIM - an Instrument Suite for the International Space Station

    DEFF Research Database (Denmark)

    Neubert, Torsten; Crosby, B.; Huang, T.-Y.

    2009-01-01

    ASIM (Atmosphere-Space Interactions Monitor) is an instrument suite for studies of severe thunderstorms and their effects on the atmosphere and ionosphere. The instruments are designed to observe transient luminous events (TLEs)—sprites, blue jets and elves—and terrestrial gamma-ray flashes (TGFs...

  14. Rimsky-Korsakov: Symphony N2 (Symphonic Suite) / Warrack, John

    Index Scriptorium Estoniae

    Warrack, John

    1990-01-01

    Uuest heliplaadist "Rimsky-Korsakov: Symphony N2 (Symphonic Suite), Op. 9, "Antar" Russian Easter Festival Overture, Op.36. Philharmonia Orchestra, Evgeni Svetlanov. Hyperion KA 66399. CDA 66399. Teise sümfoonia esitust võrreldud Neeme Järvi plaadistusega

  15. Mineralogical Appraisal of Sediments of Duricrust Suites and Pans ...

    African Journals Online (AJOL)

    A mineralogical investigation of duricrust suites in Letlhakeng valley, and five pans around Jwaneng in Botswana was undertaken in order to know the mineral assemblages and infer on their landscape formation. In Letlhakeng, duricrusts comprised calcretes, silcretes and ferricretes. Calcretes were dominated by the ...

  16. Heavy mineral suite in the shelf sediments off Madras coast

    Digital Repository Service at National Institute of Oceanography (India)

    Setty, M.G.A; Rajamanickam, G.V.

    The heavy mineral suite of the shelf sediments of this area (12~'00': 13~'05'N and 80~'00': 80~'36'E), are characterised by a dominant group of minerals such as hornblende, augite, hypersthene, garnet and opaque minerals; common by epidote, zircon...

  17. Complete preservation of ophiolite suite from south Andaman, India ...

    Indian Academy of Sciences (India)

    The ophiolite suite reveals serpentinite at the base which is overlain unconformably by cumulate ultramafic–mafic members with discernible cumulus texture and igneous layering. Basaltic dykes are found to cut across the cumulate ultramafic–mafic members. The succession is capped by well exposed pillow basalts ...

  18. The creation of the optimal dedicated endovascular suite

    NARCIS (Netherlands)

    Sikkink, C. J. J. M.; Reijnen, M. M. P. J.; Zeebregts, C. J.

    Background. During the last decade endovascular therapy has been established as an alternative treatment for a variety of vascular diseases. Neither the classic operating room (OR), nor the conventional angiography suite is optimal for both open surgery and endovascular procedures. Important issues

  19. The Los Alamos suite of relativistic atomic physics codes

    Science.gov (United States)

    Fontes, C. J.; Zhang, H. L.; Abdallah, J., Jr.; Clark, R. E. H.; Kilcrease, D. P.; Colgan, J.; Cunningham, R. T.; Hakel, P.; Magee, N. H.; Sherrill, M. E.

    2015-07-01

    The Los Alamos suite of relativistic atomic physics codes is a robust, mature platform that has been used to model highly charged ions in a variety of ways. The suite includes capabilities for calculating data related to fundamental atomic structure, as well as the processes of photoexcitation, electron-impact excitation and ionization, photoionization and autoionization within a consistent framework. These data can be of a basic nature, such as cross sections and collision strengths, which are useful in making predictions that can be compared with experiments to test fundamental theories of highly charged ions, such as quantum electrodynamics. The suite can also be used to generate detailed models of energy levels and rate coefficients, and to apply them in the collisional-radiative modeling of plasmas over a wide range of conditions. Such modeling is useful, for example, in the interpretation of spectra generated by a variety of plasmas. In this work, we provide a brief overview of the capabilities within the Los Alamos relativistic suite along with some examples of its application to the modeling of highly charged ions.

  20. CHIMERA CBRN protective suit. Advanced embodiment design. Final report

    NARCIS (Netherlands)

    Bogerd, C.P.; Smit, B. de; Olarte, C.; Kane, G.; Bie, M. de; Megen, X. van; Schenk, J.; Hooop, J. de

    2015-01-01

    The Chimera project started of with the following design challenge: Designing a switchable CBRN (chemical, biological, radiological, nuclear) protective suit for soldiers, one phase being a regular work state and the other phase being a protective state to enable the soldier to get away from the

  1. Knowledge Architect : A Tool Suite for Managing Software Architecture Knowledge

    NARCIS (Netherlands)

    Liang, Peng; Jansen, Anton; Avgeriou, Paris

    2009-01-01

    Management of software architecture knowledge (AK) is vital for improving an organization’s architectural capabilities. To support the architecting process within our industrial partner: Astron, the Dutch radio astronomy institute, we implemented the Knowledge Architect (KA): a tool suite for

  2. Critical Care

    Science.gov (United States)

    Critical care helps people with life-threatening injuries and illnesses. It might treat problems such as complications from surgery, ... attention by a team of specially-trained health care providers. Critical care usually takes place in an ...

  3. Asteroid Redirect Crewed Mission Space Suit and EVA System Architecture Trade Study

    Science.gov (United States)

    Blanco, Raul A.; Bowie, Jonathan T.; Watson, Richard D.; Sipila, Stephanie A.

    2014-01-01

    the Advanced Crew Escape Suit (ACES), and the Exploration Z-suit. For this mission, the pressure garment that was selected is the Modified ACES (MACES) with EVA enhancements. Life support options that were considered included short closed-loop umbilicals, long open-loop umbilicals, the currently in-use ISS EMU Portable Life Support System (PLSS), and the currently in development Exploration PLSS. For this mission, the life support option that was selected is the Exploration PLSS. The greatest risk in the proposed architecture is viewed to be the comfort and mobility of the baseline MACES and the delicate balance between adding more mobility features while not compromising landing safety. Feasibility testing was accomplished in low fidelity analogs and in the JSC Neutral Buoyancy Laboratory (NBL) to validate the concept before a final recommendation on the architecture was made. The proposed architecture was found to meet the mission constraints, but much more work is required to determine the details of the required suit upgrades, the integration with the PLSS, and the rest of the tools and equipment required to accomplish the mission. This work and further definition of the remaining kits will be conducted in government fiscal year 14.

  4. MASH Suite: a user-friendly and versatile software interface for high-resolution mass spectrometry data interpretation and visualization.

    Science.gov (United States)

    Guner, Huseyin; Close, Patrick L; Cai, Wenxuan; Zhang, Han; Peng, Ying; Gregorich, Zachery R; Ge, Ying

    2014-03-01

    The rapid advancements in mass spectrometry (MS) instrumentation, particularly in Fourier transform (FT) MS, have made the acquisition of high-resolution and high-accuracy mass measurements routine. However, the software tools for the interpretation of high-resolution MS data are underdeveloped. Although several algorithms for the automatic processing of high-resolution MS data are available, there is still an urgent need for a user-friendly interface with functions that allow users to visualize and validate the computational output. Therefore, we have developed MASH Suite, a user-friendly and versatile software interface for processing high-resolution MS data. MASH Suite contains a wide range of features that allow users to easily navigate through data analysis, visualize complex high-resolution MS data, and manually validate automatically processed results. Furthermore, it provides easy, fast, and reliable interpretation of top-down, middle-down, and bottom-up MS data. MASH Suite is convenient, easily operated, and freely available. It can greatly facilitate the comprehensive interpretation and validation of high-resolution MS data with high accuracy and reliability.

  5. Evaluation of Carbon Dioxide Sensors for the Constellation Space Suit Life Support System for Surface Exploration

    Science.gov (United States)

    Dietrich, Daniel L.; Paul, Heather L.; Conger, Bruce C.

    2009-01-01

    This paper presents the findings of the trade study to evaluate carbon dioxide (CO2) sensing technologies for the Constellation (Cx) space suit life support system for surface exploration. The trade study found that nondispersive infrared absorption (NDIR) is the most appropriate high Technology Readiness Level (TRL) technology for the CO2 sensor for the Cx space suit. The maturity of the technology is high, as it is the basis for the CO2 sensor in the Extravehicular Mobility Unit (EMU). The study further determined that while there is a range of commercial sensors available, the Cx CO2 sensor should be a new design. Specifically, there are light sources (e.g., infrared light emitting diodes) and detectors (e.g., cooled detectors) that are not in typical commercial sensors due to cost. These advanced technology components offer significant advantages in performance (weight, volume, power, accuracy) to be implemented in the new sensor. The exact sensor design (light source, transmitting optics, path length, receiving optics and detector) will be specific for the Cx space suit and will be determined by the performance requirements of the Cx space suit. The paper further identifies specifications for some of the critical performance parameters as well as discussing the engineering aspects of implementing the sensor into the Portable Life Support System (PLSS). The paper then presents testing results from three CO2 sensors with respect to issues important to Extravehicular Activity (EVA) applications; stability, humidity dependence and low pressure compatibility. The three sensors include two NDIR sensors, one commercial and one custom-developed by NASA (for a different purpose), and one commercial electrochemical sensor. The results show that both NDIR sensors have excellent stability, no dependence on ambient humidity (when the ambient temperature is above the dew point) and operate in low pressure conditions and after being exposed to a full vacuum. The commercial

  6. How Critical Is Critical Thinking?

    Science.gov (United States)

    Shaw, Ryan D.

    2014-01-01

    Recent educational discourse is full of references to the value of critical thinking as a 21st-century skill. In music education, critical thinking has been discussed in relation to problem solving and music listening, and some researchers suggest that training in critical thinking can improve students' responses to music. But what exactly is…

  7. Prokofieff: Krieg und Frieden (Sinfonische Suite), Die Verlobung im Kloster (Sommernacht-Suite), Russische Overtüre. Philharmonia Orchestra, Neeme Järvi / G. W.

    Index Scriptorium Estoniae

    G. W.

    1993-01-01

    Uuest heliplaadist "Prokofieff: Krieg und Frieden (Sinfonische Suite), Die Verlobung im Kloster (Sommernacht-Suite), Russische Overtüre. Philharmonia Orchestra, Neeme Järvi. (AD: 1991). Chandos/Koch CD 9096

  8. Incorporating the TRMM Dataset into the GPM Mission Data Suite

    Science.gov (United States)

    Stocker, Erich Franz; Ji, Yimin; Chou, Joyce; Kelley, Owen; Kwiatkowski, John; Stout, John

    2016-01-01

    In June 2015 the TRMM satellite came to its end. The 17 plus year of mission data that it provided has proven a valuable asset to a variety of science communities. This 17plus year data set does not, however, stagnate with the end of the mission itself. NASA/JAXA intend to integrate the TRMM data set into the data suite of the GPM mission. This will ensure the creation of a consistent, intercalibrated, accurate dataset within GPM that extends back to November of 1998. This paper describes the plans for incorporating the TRMM 17plus year data into the GPM data suite. These plans call for using GPM algorithms for both radiometer and radar to reprocess TRMM data as well as intercalibrating partner radiometers using GPM intercalibration techniques. This reprocessing will mean changes in content, logical format and physical format as well as improved geolocation, sensor corrections and retrieval techniques.

  9. Recent developments in the CCP-EM software suite.

    Science.gov (United States)

    Burnley, Tom; Palmer, Colin M; Winn, Martyn

    2017-06-01

    As part of its remit to provide computational support to the cryo-EM community, the Collaborative Computational Project for Electron cryo-Microscopy (CCP-EM) has produced a software framework which enables easy access to a range of programs and utilities. The resulting software suite incorporates contributions from different collaborators by encapsulating them in Python task wrappers, which are then made accessible via a user-friendly graphical user interface as well as a command-line interface suitable for scripting. The framework includes tools for project and data management. An overview of the design of the framework is given, together with a survey of the functionality at different levels. The current CCP-EM suite has particular strength in the building and refinement of atomic models into cryo-EM reconstructions, which is described in detail.

  10. Biosynthesis of the spiroacetal suite in Bactrocera tryoni.

    Science.gov (United States)

    Booth, Yvonne K; Kitching, William; De Voss, James J

    2011-01-03

    In pursuit of a more environmentally benign method of controlling the highly pestiferous Queensland fruit fly, Bactrocera tryoni, the biosynthesis of the minor components in the suite of spiroacetals released by females has been investigated. This follows on the biosynthetic definition of the pathway to the major component, (E,E)-1. The origins of the C(12) and C(13) spiroacetals (E,E)-2 and (E,E)-3, respectively, have been investigated by the administration of over 30 deuterated potential precursors. Analysis of the relative incorporation levels and identification of some of the exceptionally minor spiroacetals that were biosynthesised established that B. tryoni processes fatty acids to 2,6-dioxygenated precursors by a modified β-oxidation pathway, with a suite of putative cytochromes P450 employed in the crucial oxidative steps, prior to cyclisation of the proposed ketodiol.

  11. A quantitative reconstruction software suite for SPECT imaging

    Science.gov (United States)

    Namías, Mauro; Jeraj, Robert

    2017-11-01

    Quantitative Single Photon Emission Tomography (SPECT) imaging allows for measurement of activity concentrations of a given radiotracer in vivo. Although SPECT has usually been perceived as non-quantitative by the medical community, the introduction of accurate CT based attenuation correction and scatter correction from hybrid SPECT/CT scanners has enabled SPECT systems to be as quantitative as Positron Emission Tomography (PET) systems. We implemented a software suite to reconstruct quantitative SPECT images from hybrid or dedicated SPECT systems with a separate CT scanner. Attenuation, scatter and collimator response corrections were included in an Ordered Subset Expectation Maximization (OSEM) algorithm. A novel scatter fraction estimation technique was introduced. The SPECT/CT system was calibrated with a cylindrical phantom and quantitative accuracy was assessed with an anthropomorphic phantom and a NEMA/IEC image quality phantom. Accurate activity measurements were achieved at an organ level. This software suite helps increasing quantitative accuracy of SPECT scanners.

  12. Feasibility of Suited 10-km Ambulation "Walkback" on the Moon

    Science.gov (United States)

    Norcross, Jason; Lee, Lesley; DeWitt, John K.; Klein, Jill; Wessell, James; Gernhardt, Michael L.

    2008-01-01

    This viewgraph presentation reviews a study that examined the feasibility of having astronauts walk about 10 kilometers to the base in the event of a breakdown of the lunar rover. This was done in part to examine the possibility of having a single rover on the lunar exploration missions. Other objectives of the study are to: (1) Understand specific biomedical and human performance limitations of the suit compared to matched shirt-sleeve controls; (2) Collect metabolic and ground-reaction force data to develop an EVA simulator for use on future prebr eathe protocol verification tests (3) Provide data to estimate consum ables usage for input to suit and portable life support system (PLSS) design (4) Assess the cardiovascular and resistance exercise associa ted with partialgravity EVA for planning appropriate exploration exer cise countermeasures

  13. Vulnerability of critical infrastructures : identifying critical nodes.

    Energy Technology Data Exchange (ETDEWEB)

    Cox, Roger Gary; Robinson, David Gerald

    2004-06-01

    The objective of this research was the development of tools and techniques for the identification of critical nodes within critical infrastructures. These are nodes that, if disrupted through natural events or terrorist action, would cause the most widespread, immediate damage. This research focuses on one particular element of the national infrastructure: the bulk power system. Through the identification of critical elements and the quantification of the consequences of their failure, site-specific vulnerability analyses can be focused at those locations where additional security measures could be effectively implemented. In particular, with appropriate sizing and placement within the grid, distributed generation in the form of regional power parks may reduce or even prevent the impact of widespread network power outages. Even without additional security measures, increased awareness of sensitive power grid locations can provide a basis for more effective national, state and local emergency planning. A number of methods for identifying critical nodes were investigated: small-world (or network theory), polyhedral dynamics, and an artificial intelligence-based search method - particle swarm optimization. PSO was found to be the only viable approach and was applied to a variety of industry accepted test networks to validate the ability of the approach to identify sets of critical nodes. The approach was coded in a software package called Buzzard and integrated with a traditional power flow code. A number of industry accepted test networks were employed to validate the approach. The techniques (and software) are not unique to power grid network, but could be applied to a variety of complex, interacting infrastructures.

  14. Kinematic Analysis of Exoskeleton Suit for Human Arm

    OpenAIRE

    Surachai Panich

    2010-01-01

    Problem statement: There are many robotic arms developed for providing care to physically disabled people. It is difficult to find robot designs in literature that articulate such a procedure. Therefore, it is our hope that the design work shown in this study may serve as a good example of a systematic method for rehabilitation robot design. Approach: The arm exoskeleton suit was developed to increase human's strength, endurance, or speed enabling them to perform tasks that they previously co...

  15. Apollo 11 astronaut Neil Armstrong suits up before launch

    Science.gov (United States)

    1969-01-01

    Apollo 11 Commander Neil Armstrong prepares to put on his helmet with the assistance of a spacesuit technician during suiting operations in the Manned Spacecraft Operations Building (MSOB) prior to the astronauts' departure to Launch Pad 39A. The three astronauts, Edwin E. Aldrin Jr., Neil A Armstrong and Michael Collins, will then board the Saturn V launch vehicle, scheduled for a 9:32 a.m. EDT liftoff, for the first manned lunar landing mission.

  16. Enhanced verification test suite for physics simulation codes

    Energy Technology Data Exchange (ETDEWEB)

    Kamm, James R.; Brock, Jerry S.; Brandon, Scott T.; Cotrell, David L.; Johnson, Bryan; Knupp, Patrick; Rider, William J.; Trucano, Timothy G.; Weirs, V. Gregory

    2008-09-01

    This document discusses problems with which to augment, in quantity and in quality, the existing tri-laboratory suite of verification problems used by Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratories (SNL). The purpose of verification analysis is demonstrate whether the numerical results of the discretization algorithms in physics and engineering simulation codes provide correct solutions of the corresponding continuum equations.

  17. Non-Venting Thermal and Humidity Control for EVA Suits

    Science.gov (United States)

    Izenson, Mike; Chen, Weibo; Bue, Grant

    2011-01-01

    Future EVA suits need processes and systems to control internal temperature and humidity without venting water to the environment. This paper describes an absorption-based cooling and dehumidification system as well as laboratory demonstrations of the key processes. There are two main components in the system: an evaporation cooling and dehumidification garment (ECDG) that removes both sensible heat and latent heat from the pressure garment, and an absorber radiator that absorbs moisture and rejects heat to space by thermal radiation. This paper discusses the overall design of both components, and presents recent data demonstrating their operation. We developed a design and fabrication approach to produce prototypical heat/water absorbing elements for the ECDG, and demonstrated by test that these elements could absorb heat and moisture at a high flux. Proof-of-concept tests showed that an ECDG prototype absorbs heat and moisture at a rate of 85 W/ft under conditions that simulate operation in an EVA suit. The heat absorption was primarily due to direct absorption of water vapor. It is possible to construct large, flexible, durable cooling patches that can be incorporated into a cooling garment with this system. The proof-of-concept test data was scaled to calculate area needed for full metabolic loads, thus showing that it is feasible to use this technology in an EVA suit. Full-scale, lightweight absorber/radiator modules have also been built and tested. They can reject heat at a flux of 33 W/ft while maintaining ECDG operation at conditions that will provide a cool and dry environment inside the EVA suit.

  18. Critical Jostling

    Directory of Open Access Journals (Sweden)

    Pippin Barr

    2016-11-01

    Full Text Available Games can serve a critical function in many different ways, from serious games about real world subjects to self-reflexive commentaries on the nature of games themselves. In this essay we discuss critical possibilities stemming from the area of critical design, and more specifically Carl DiSalvo’s adversarial design and its concept of reconfiguring the remainder. To illustrate such an approach, we present the design and outcomes of two games, Jostle Bastard and Jostle Parent. We show how the games specifically engage with two previous games, Hotline Miami and Octodad: Dadliest Catch, reconfiguring elements of those games to create interactive critical experiences and extensions of the source material. Through the presentation of specific design concerns and decisions, we provide a grounded illustration of a particular critical function of videogames and hope to highlight this form as another valuable approach in the larger area of videogame criticism.

  19. The Sample Analysis at Mars Investigation and Instrument Suite

    Science.gov (United States)

    Mahaffy, Paul; Webster, Chris R.; Cabane, M.; Conrad, Pamela G.; Coll, Patrice; Atreya, Sushil K.; Arvey, Robert; Barciniak, Michael; Benna, Mehdi; Bleacher, L.; hide

    2012-01-01

    The Sample Analysis at Mars (SAM) investigation of the Mars Science Laboratory(MSL) addresses the chemical and isotopic composition of the atmosphere and volatilesextracted from solid samples. The SAM investigation is designed to contribute substantiallyto the mission goal of quantitatively assessing the habitability of Mars as an essentialstep in the search for past or present life on Mars. SAM is a 40 kg instrument suite locatedin the interior of MSLs Curiosity rover. The SAM instruments are a quadrupole massspectrometer, a tunable laser spectrometer, and a 6-column gas chromatograph all coupledthrough solid and gas processing systems to provide complementary information on thesame samples. The SAM suite is able to measure a suite of light isotopes and to analyzevolatiles directly from the atmosphere or thermally released from solid samples. In additionto measurements of simple inorganic compounds and noble gases SAM will conducta sensitive search for organic compounds with either thermal or chemical extraction fromsieved samples delivered by the sample processing system on the Curiosity rovers roboticarm.

  20. 46 CFR 199.214 - Immersion suits and thermal protective aids.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Immersion suits and thermal protective aids. 199.214... Passenger Vessels § 199.214 Immersion suits and thermal protective aids. (a) Each passenger vessel must... an immersion suit. (c) The immersion suits and thermal protective aids required under paragraphs (a...

  1. A custom multi-modal sensor suite and data analysis pipeline for aerial field phenotyping

    Science.gov (United States)

    Bartlett, Paul W.; Coblenz, Lauren; Sherwin, Gary; Stambler, Adam; van der Meer, Andries

    2017-05-01

    Our group has developed a custom, multi-modal sensor suite and data analysis pipeline to phenotype crops in the field using unpiloted aircraft systems (UAS). This approach to high-throughput field phenotyping is part of a research initiative intending to markedly accelerate the breeding process for refined energy sorghum varieties. To date, single rotor and multirotor helicopters, roughly 14 kg in total weight, are being employed to provide sensor coverage over multiple hectaresized fields in tens of minutes. The quick, autonomous operations allow for complete field coverage at consistent plant and lighting conditions, with low operating costs. The sensor suite collects data simultaneously from six sensors and registers it for fusion and analysis. High resolution color imagery targets color and geometric phenotypes, along with lidar measurements. Long-wave infrared imagery targets temperature phenomena and plant stress. Hyperspectral visible and near-infrared imagery targets phenotypes such as biomass and chlorophyll content, as well as novel, predictive spectral signatures. Onboard spectrometers and careful laboratory and in-field calibration techniques aim to increase the physical validity of the sensor data throughout and across growing seasons. Off-line processing of data creates basic products such as image maps and digital elevation models. Derived data products include phenotype charts, statistics, and trends. The outcome of this work is a set of commercially available phenotyping technologies, including sensor suites, a fully integrated phenotyping UAS, and data analysis software. Effort is also underway to transition these technologies to farm management users by way of streamlined, lower cost sensor packages and intuitive software interfaces.

  2. Test suite for image-based motion estimation of the brain and tongue

    Science.gov (United States)

    Ramsey, Jordan; Prince, Jerry L.; Gomez, Arnold D.

    2017-03-01

    Noninvasive analysis of motion has important uses as qualitative markers for organ function and to validate biomechanical computer simulations relative to experimental observations. Tagged MRI is considered the gold standard for noninvasive tissue motion estimation in the heart, and this has inspired multiple studies focusing on other organs, including the brain under mild acceleration and the tongue during speech. As with other motion estimation approaches, using tagged MRI to measure 3D motion includes several preprocessing steps that affect the quality and accuracy of estimation. Benchmarks, or test suites, are datasets of known geometries and displacements that act as tools to tune tracking parameters or to compare different motion estimation approaches. Because motion estimation was originally developed to study the heart, existing test suites focus on cardiac motion. However, many fundamental differences exist between the heart and other organs, such that parameter tuning (or other optimization) with respect to a cardiac database may not be appropriate. Therefore, the objective of this research was to design and construct motion benchmarks by adopting an "image synthesis" test suite to study brain deformation due to mild rotational accelerations, and a benchmark to model motion of the tongue during speech. To obtain a realistic representation of mechanical behavior, kinematics were obtained from finite-element (FE) models. These results were combined with an approximation of the acquisition process of tagged MRI (including tag generation, slice thickness, and inconsistent motion repetition). To demonstrate an application of the presented methodology, the effect of motion inconsistency on synthetic measurements of head- brain rotation and deformation was evaluated. The results indicated that acquisition inconsistency is roughly proportional to head rotation estimation error. Furthermore, when evaluating non-rigid deformation, the results suggest that

  3. Critical Review

    DEFF Research Database (Denmark)

    Rosenbaum, Ralph K.; Olsen, Stig Irving

    2017-01-01

    Manipulation and mistakes in LCA studies are as old as the tool itself, and so is its critical review. Besides preventing misuse and unsupported claims, critical review may also help identifying mistakes and more justifiable assumptions as well as generally improve the quality of a study. It thus...

  4. Critical Muralism

    Science.gov (United States)

    Rosette, Arturo

    2009-01-01

    This study focuses on the development and practices of Critical Muralists--community-educator-artist-leader-activists--and situates these specifically in relation to the Mexican mural tradition of los Tres Grandes and in relation to the history of public art more generally. The study examines how Critical Muralists address artistic and…

  5. Suited versus unsuited analog astronaut performance using the Aouda.X space suit simulator: the DELTA experiment of MARS2013.

    Science.gov (United States)

    Soucek, Alexander; Ostkamp, Lutz; Paternesi, Roberta

    2015-04-01

    Space suit simulators are used for extravehicular activities (EVAs) during Mars analog missions. Flight planning and EVA productivity require accurate time estimates of activities to be performed with such simulators, such as experiment execution or traverse walking. We present a benchmarking methodology for the Aouda.X space suit simulator of the Austrian Space Forum. By measuring and comparing the times needed to perform a set of 10 test activities with and without Aouda.X, an average time delay was derived in the form of a multiplicative factor. This statistical value (a second-over-second time ratio) is 1.30 and shows that operations in Aouda.X take on average a third longer than the same operations without the suit. We also show that activities predominantly requiring fine motor skills are associated with larger time delays (between 1.17 and 1.59) than those requiring short-distance locomotion or short-term muscle strain (between 1.10 and 1.16). The results of the DELTA experiment performed during the MARS2013 field mission increase analog mission planning reliability and thus EVA efficiency and productivity when using Aouda.X.

  6. Suitport Feasibility - Development and Test of a Suitport and Space Suit for Human Pressurized Space Suit Donning Tests

    Science.gov (United States)

    Boyle, Robert M.; Mitchell, Kathryn; Allton, Charles; Ju, Hsing

    2011-01-01

    The suitport concept has been recently implemented as part of the small pressurized lunar rover (Currently the Space Exploration vehicle, or SEV) and the Multi-Mission Space Exploration Vehicle (MMSEV) concept demonstrator vehicle. Suitport replaces or augments the traditional airlock function of a spacecraft by providing a bulkhead opening, capture mechanism, and sealing system to allow ingress and egress of a spacesuit while the spacesuit remains outside of the pressurized volume of the spacecraft. This presents significant new opportunities to EVA exploration in both microgravity and surface environments. The suitport concept will enable three main improvements in EVA by providing reductions in: pre-EVA time from hours to less than thirty minutes; airlock consumables; contamination returned to the cabin with the EVA crewmember. To date, the first generation suitport has been tested with mockup suits on the rover cabins and pressurized on a bench top engineering unit. The work on the rover cabin has helped define the operational concepts and timelines, and has demonstrated the potential of suitport to save significant amounts of crew time before and after EVAs. The work with the engineering unit has successfully demonstrated the pressurizable seal concept including the ability to seal after the introduction and removal of contamination to the sealing surfaces. Using this experience, a second generation suitport was designed. This second generation suitport has been tested with a spacesuit prototype using the pressure differentials of the spacecraft. This test will be performed using the JSC B32 Chamber B, a human rated vacuum chamber. This test will include human rated suitports, the suitport compatible prototype suit, and chamber modifications. This test will bring these three elements together in the first ever pressurized donning of a rear entry suit through a suitport. This paper presents design of a human rated second generation suitport, modifications to

  7. The PAUL Suit(©) : an experience of ageing.

    Science.gov (United States)

    Bennett, Paul; Moore, Malcolm; Wenham, John

    2016-04-01

    An ageing population worldwide makes it increasingly important that health students understand issues that elderly people face and can provide empathic care to them. This teaching department in an isolated rural setting developed an interprofessional learning session to assist health students to understand issues of functional loss and social isolation that can affect elderly people. The Premature Ageing Unisex Leisure (PAUL) Suit(©) was developed as part of a 1-day learning session for undergraduate health students - including students of medicine, nursing and allied health - attending clinical placement in far-west New South Wales. The suit was developed locally and can be adjusted to simulate a wide range of functional losses in the wearer. Students undertake a range of daily tasks in the community while wearing the suit in the company of a student 'carer'. Over the past 4 years, approximately 140 students have participated in the simulation. Post-simulation evaluations report that students gain a greater understanding of some functional issues associated with ageing, and of the social isolation that can be associated with these. The experiential nature of the activity leads to some powerful insights. This activity is an innovative, experiential tool to deepen students understanding of issues related to ageing This activity is an innovative, experiential tool to deepen students understanding of issues relating to ageing. The interprofessional nature of the activity is an important factor in the success of the day, and produces a wide range of shared insights. The activity also enhances the partnerships between the university, the health service and the local community. Our experience supports the value of simulation in providing a deep learning opportunity in the area of ageing and disability. © 2015 John Wiley & Sons Ltd.

  8. The FIELDS Instrument Suite for Solar Probe Plus

    Science.gov (United States)

    Bale, S. D.; Goetz, K.; Harvey, P. R.; Turin, P.; Bonnell, J. W.; Dudok de Wit, T.; Ergun, R. E.; MacDowall, R. J.; Pulupa, M.; Andre, M.; hide

    2016-01-01

    NASA's Solar Probe Plus (SPP) mission will make the first in situ measurements of the solar corona and the birthplace of the solar wind. The FIELDS instrument suite on SPP will make direct measurements of electric and magnetic fields, the properties of in situ plasma waves, electron density and temperature profiles, and interplanetary radio emissions, amongst other things. Here, we describe the scientific objectives targeted by the SPP/FIELDS instrument, the instrument design itself, and the instrument concept of operations and planned data products.

  9. Science Highlights from the RBSP-ECT Particle Instrument Suite on NASA's Van Allen Probes Mission

    Science.gov (United States)

    Spence, Harlan

    2014-05-01

    The NASA Van Allen Probes mission includes an instrument suite known as the Radiation Belt Storm Probes (RBSP) - Energetic Particle, Composition, and Thermal Plasma (ECT) suite. RBSP-ECT contains a well-proven complement of particle instruments to ensure the highest quality measurements ever made in the radiation belts and the inner magnetosphere. The coordinated RBSP-ECT particle measurements, analyzed in combination with fields and waves observations and state of-the-art theory and modeling, provide new understanding on the acceleration, global distribution, and variability of radiation belt electrons and ions, key science objectives of NASA's Living With a Star program and the Van Allen Probes mission. The RBSP-ECT suite consists of three highly-coordinated instruments: the Helium Oxygen Proton Electron (HOPE) spectrometer, the Magnetic Electron Ion Spectrometer (MagEIS), and the Relativistic Electron Proton Telescope (REPT). Collectively these three instrument types cover comprehensively the full electron and ion spectra from one eV to 10's of MeV with sufficient energy resolution, pitch angle coverage and resolution, and with composition measurements in the critical energy range up to 50 keV and also from a few to 50 MeV/nucleon. All three instruments are based on measurement techniques proven in the radiation belts, then optimized to provide unambiguous separation of ions and electrons and clean energy responses even in the presence of extreme penetrating background environments. In this presentation, we summarize overall ECT science goals and then show scientific results derived from the ECT suite on the dual Van Allen Probes spacecraft to date. Mission operations began only in late October 2012, and we have now achieved significant results. Results presented here will include substantial progress toward resolving primary Van Allen Probes science targets, such as: the relative role of localized acceleration versus transport-generated particle acceleration

  10. Early Science Results From the NASA Van Allen Probes Mission RBSP-ECT Instrument Suite

    Science.gov (United States)

    Spence, Harlan; Reeves, Geoff; Rbspect Team

    2013-04-01

    The NASA Van Allen Probes mission includes an instrument suite known as the Radiation Belt Storm Probes (RBSP) - Energetic Particle, Composition, and Thermal Plasma (ECT) suite. RBSP-ECT contains a well-proven complement of particle instruments to ensure the highest quality measurements ever made in the radiation belts and the inner magnetosphere. The coordinated RBSP-ECT particle measurements, analyzed in combination with fields and waves observations and state of-the-art theory and modeling, provide new understanding on the acceleration, global distribution, and variability of radiation belt electrons and ions, key science objectives of NASA's Living With a Star program and the Van Allen Probes mission. The RBSP-ECT suite consists of three highly-coordinated instruments: the Helium Oxygen Proton Electron (HOPE) spectrometer, the Magnetic Electron Ion Spectrometer (MagEIS), and the Relativistic Electron Proton Telescope (REPT). Collectively these three instrument types cover comprehensively the full electron and ion spectra from one eV to 10's of MeV with sufficient energy resolution, pitch angle coverage and resolution, and with composition measurements in the critical energy range up to 50 keV and also from a few to 50 MeV/nucleon. All three instruments are based on measurement techniques proven in the radiation belts, then optimized to provide unambiguous separation of ions and electrons and clean energy responses even in the presence of extreme penetrating background environments. In this presentation, we summarize overall ECT science goals and then show early scientific results derived from the ECT suite on the dual Van Allen Probes spacecraft. Mission operations began only in late October 2012, but we have already achieved significant early results. Results presented here will include substantial progress toward resolving primary Van Allen Probes science targets, such as: the relative role of localized acceleration versus transport-generated particle

  11. Shift Verification and Validation

    Energy Technology Data Exchange (ETDEWEB)

    Pandya, Tara M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Evans, Thomas M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Davidson, Gregory G [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Johnson, Seth R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Godfrey, Andrew T. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2016-09-07

    This documentation outlines the verification and validation of Shift for the Consortium for Advanced Simulation of Light Water Reactors (CASL). Five main types of problems were used for validation: small criticality benchmark problems; full-core reactor benchmarks for light water reactors; fixed-source coupled neutron-photon dosimetry benchmarks; depletion/burnup benchmarks; and full-core reactor performance benchmarks. We compared Shift results to measured data and other simulated Monte Carlo radiation transport code results, and found very good agreement in a variety of comparison measures. These include prediction of critical eigenvalue, radial and axial pin power distributions, rod worth, leakage spectra, and nuclide inventories over a burn cycle. Based on this validation of Shift, we are confident in Shift to provide reference results for CASL benchmarking.

  12. Critical Proximity

    Directory of Open Access Journals (Sweden)

    Jane Simon

    2010-09-01

    Full Text Available This essay considers how written language frames visual objects. Drawing on Michel Foucault’s response to Raymond Roussel’s obsessive description, the essay proposes a model of criticism where description might press up against its objects. This critical closeness is then mapped across the conceptual art practice and art criticism of Ian Burn. Burn attends to the differences between seeing and reading, and considers the conditions which frame how we look at images, including how we look at, and through words. The essay goes on to consider Meaghan Morris’s writing on Lynn Silverman’s photographs. Both Morris and Burn offer an alternative to a parasitic model of criticism and enact a patient way of looking across and through visual landscapes.

  13. Critical proximity

    Directory of Open Access Journals (Sweden)

    Simon, Jane

    2010-01-01

    Full Text Available This essay considers how written language frames visual objects. Drawing on Michel Foucault’s response to Raymond Roussel’s obsessive description, the essay proposes a model of criticism where description might press up against its objects. This critical closeness is then mapped across the conceptual art practice and art criticism of Ian Burn. Burn attends to the differences between seeing and reading, and considers the conditions which frame how we look at images, including how we look at, and through words. The essay goes on to consider Meaghan Morris’s writing on Lynn Silverman’s photographs. Both Morris and Burn offer an alternative to a parasitic model of criticism and enact a patient way of looking across and through visual landscapes.

  14. Development of NASA Earth Observing System Simulator Suite (NEOS3)

    Science.gov (United States)

    Niamsuwan, N.; Tanelli, S.; Johnson, M. P.; Jacob, J. C.

    2012-12-01

    NASA Earth Observing System Simulator Suite (NEOS3) is a web-based integrated simulator for Earth remote sensing applications. Initially developed for atmospheric remote sensing instruments, NEOS3 is equipped with start-of-the-art modules to enable the realistic simulation of satellite observables. The main objective of the development is to provide an advanced, sophisticated, and user-friendly simulator package that can be used by both scientists for research-oriented applications and by system engineers for an instrument design purpose. This system is accessible via a web interface and capable of distributing computationally intensive tasks to remote servers such as those at the NASA Advanced Supercomputing (NAS) Division. Among other advanced models, the propagation models integrated in NEOS3 include DOMUS (DOppler MUltiple-Scattering simulator) and SHDOM (Spherical Harmonic Discrete Ordinate Method) for simulation of radars and radiometers, respectively. These two models enable 3D simulation of wave propagation through the atmosphere. The electromagnetic scattering properties of snow and cloud ice particles can be obtained from the Snowfake database (built upon a realistic snow growth model and the Discrete Dipole Approximation technique). Alternatively, different libraries of models can be selected for individual components of the simulation procedure. The presentation will cover an overview of 3 distinct perspectives of the NEOS3 system: capabilities, architecture and basic workflow. It will serve as an introduction for prospective users as well as contributors who desire to further enhance this simulator suite by providing an improved model.

  15. SSAGES: Software Suite for Advanced General Ensemble Simulations.

    Energy Technology Data Exchange (ETDEWEB)

    Sidky, Hythem; Colon, Yamil J.; Helfferich, Julian; Sikora, Benjamin J.; Bezik, Cody; Chu, Weiwei; Giberti, Federico; Guo, Ashley Z.; Jiang, Xikai; Lequieu, Joshua P.; Webb, Michael; de Pablo, Juan J.

    2018-01-28

    Molecular simulation has emerged as an essential tool for modern-day research, but obtaining proper results and making reliable conclusions from simulations requires adequate sampling of the system under consideration. To this end, a variety of methods exist in the literature that can enhance sampling considerably, and increasingly sophisticated, effective algorithms continue to be developed at a rapid pace. Implementation of these techniques, however, can be challenging for experts and non-experts alike. There is a clear need for software that provides rapid, reliable, and easy access to a wide range of advanced sampling methods, and that facilitates implementation of new techniques as they emerge. Here we present SSAGES, a publicly available Software Suite for Advanced General Ensemble Simulations designed to interface with multiple widely used molecular dynamics simulations packages. SSAGES allows facile application of a variety of enhanced sampling techniques—including adaptive biasing force, string methods, and forward flux sampling—that extract meaningful free energy and transition path data from all-atom and coarse grained simulations. A noteworthy feature of SSAGES is a user-friendly framework that facilitates further development and implementation of new methods and collective variables. In this work, the use of SSAGES is illustrated in the context of simple representative applications involving distinct methods and different collective variables that are available in the current release of the suite.

  16. Wireless hydrotherapy smart suit for monitoring handicapped people

    Science.gov (United States)

    Correia, Jose H.; Mendes, Paulo M.

    2005-02-01

    This paper presents a smart suit, water impermeable, containing sensors and electronics for monitoring handicapped people at hydrotherapy sessions in swimming-pools. For integration into textiles, electronic components should be designed in a functional, robust and inexpensive way. Therefore, small-size electronics microsystems are a promising approach. The smart suit allows the monitoring of individual biometric data, such as heart rate, temperature and movement of the body. Two solutions for transmitting the data wirelessly are presented: through a low-voltage (3.0 V), low-power, CMOS RF IC (1.6 mm x 1.5 mm size dimensions) operating at 433 MHz, with ASK modulation and a patch antenna built on lossy substrates compatible with integrated circuits fabrication. Two different substrates were used for antenna implementation: high-resistivity silicon (HRS) and Corning Pyrex #7740 glass. The antenna prototypes were built to operate close to the 5 GHz ISM band. They operate at a center frequency of 5.705 GHz (HRS) and 5.995 GHz (Pyrex). The studied parameters were: substrate thickness, substrate losses, oxide thickness, metal conductivity and thickness. The antenna on HRS uses an area of 8 mm2, providing a 90 MHz bandwidth and ~0.3 dBi of gain. On a glass substrate, the antenna uses 12 mm2, provides 100 MHz bandwidth and ~3 dBi of gain.

  17. Validation of HELIOS for ATR Core Follow Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Bays, Samuel E. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Swain, Emily T. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Crawford, Douglas S. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Nigg, David W. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-03-01

    This work summarizes the validation analyses for the HELIOS code to support core design and safety assurance calculations of the Advanced Test Reactor (ATR). Past and current core safety assurance is performed by the PDQ-7 diffusion code; a state of the art reactor physics simulation tool from the nuclear industry’s earlier days. Over the past twenty years, improvements in computational speed have enabled the use of modern neutron transport methodologies to replace the role of diffusion theory for simulation of complex systems, such as the ATR. More exact methodologies have enabled a paradigm-shift away from highly tuned codes that force compliance with a bounding safety envelope, and towards codes regularly validated against routine measurements. To validate HELIOS, the 16 ATR operational cycles from late-2009 to present were modeled. The computed power distribution was compared against data collected by the ATR’s on-line power surveillance system. It was found that the ATR’s lobe-powers could be determined with ±10% accuracy. Also, the ATR’s cold startup shim configuration for each of these 16 cycles was estimated and compared against the reported critical position from the reactor log-book. HELIOS successfully predicted criticality within the tolerance set by the ATR startup procedure for 13 out of the 16 cycles. This is compared to 12 times for PDQ (without empirical adjustment). These findings, as well as other insights discussed in this report, suggest that HELIOS is highly suited for replacing PDQ for core safety assurance of the ATR. Furthermore, a modern verification and validation framework has been established that allows reactor and fuel performance data to be computed with a known degree of accuracy and stated uncertainty.

  18. 3D measurements of alpine skiing with an inertial sensor motion capture suit and GNSS RTK system.

    Science.gov (United States)

    Supej, Matej

    2010-05-01

    To date, camcorders have been the device of choice for 3D kinematic measurement in human locomotion, in spite of their limitations. This study examines a novel system involving a GNSS RTK that returns a reference trajectory through the use of a suit, imbedded with inertial sensors, to reveal subject segment motion. The aims were: (1) to validate the system's precision and (2) to measure an entire alpine ski race and retrieve the results shortly after measuring. For that purpose, four separate experiments were performed: (1) forced pendulum, (2) walking, (3) gate positions, and (4) skiing experiments. Segment movement validity was found to be dependent on the frequency of motion, with high accuracy (0.8 degrees , s = 0.6 degrees ) for 10 s, which equals approximately 10 slalom turns, while accuracy decreased slightly (2.1 degrees , 3.3 degrees , and 4.2 degrees for 0.5, 1, and 2 Hz oscillations, respectively) during 35 s of data collection. The motion capture suit's orientation inaccuracy was mostly due to geomagnetic secular variation. The system exhibited high validity regarding the reference trajectory (0.008 m, s = 0.0044) throughout an entire ski race. The system is capable of measuring an entire ski course with less manpower and therefore lower cost compared with camcorder-based techniques.

  19. Impact verification of space suit design for space station

    Science.gov (United States)

    Fish, Richard H.

    1987-01-01

    The ballistic limits of single sheet and double sheet structures made of 6061 T6 Aluminum of 1.8 mm and larger nominal thickness were investigated for projectiles of 1.5 mm diameter fired in the Vertical Gun Range Test Facility and NASA Ames Research Center. The hole diameters and sheet deformation behavior were studied for various ratios of sheet spacing to projectile diameter. The results indicate that for projectiles of less than 1.5 mm diameter the ballistic limit exceeds the nominal 10 km/sec orbital debris encounter velocity, if a single-sheet suit of 1.8 mm thickness is behind a single bumper sheet of 1 mm thickness spaced 12.5 mm apart.

  20. User Guide for the STAYSL PNNL Suite of Software Tools

    Energy Technology Data Exchange (ETDEWEB)

    Greenwood, Lawrence R.; Johnson, Christian D.

    2013-02-27

    The STAYSL PNNL software suite provides a set of tools for working with neutron activation rates measured in a nuclear fission reactor, an accelerator-based neutron source, or any neutron field to determine the neutron flux spectrum through a generalized least-squares approach. This process is referred to as neutron spectral adjustment since the preferred approach is to use measured data to adjust neutron spectra provided by neutron physics calculations. The input data consist of the reaction rates based on measured activities, an initial estimate of the neutron flux spectrum, neutron activation cross sections and their associated uncertainties (covariances), and relevant correction factors. The output consists of the adjusted neutron flux spectrum and associated covariance matrix, which is useful for neutron dosimetry and radiation damage calculations.

  1. Linear Analysis and Verification Suite for Edge Turbulence

    Energy Technology Data Exchange (ETDEWEB)

    Myra, J R; Umansky, M

    2008-04-24

    The edge and scrape-off-layer region of a tokamak plasma is subject to well known resistive and ideal instabilities that are driven by various curvature- and sheath-related mechanisms. While the boundary plasma is typically strongly turbulent in experiments, it is useful to have computational tools that can analyze the linear eigenmode structure, predict quantitative trends in growth rates and elucidate and the underlying drive mechanisms. Furthermore, measurement of the linear growth rate of unstable modes emerging from a known, established equilibrium configuration provides one of the few quantitative ways of rigorously benchmarking large-scale plasma turbulence codes with each other and with a universal standard. In this report, a suite of codes that can describe linearized, nonlocal (e.g. separatrix-spanning) modes in axisymmetric (realistic divertor), toroidal geometry is discussed. Examples of several benchmark comparisons are given, and future development plans for a new eigenvalue edge code are presented.

  2. STS-93 Mission Specialist Cady Coleman suits up for launch

    Science.gov (United States)

    1999-01-01

    For the third time, during final launch preparations in the Operations and Checkout Building, STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) dons her launch and entry suit. After Space Shuttle Columbia's July 20 and 22 launch attempts were scrubbed, the launch was again rescheduled for Friday, July 23, at 12:24 a.m. EDT. STS-93 is a five-day mission primarily to release the Chandra X-ray Observatory, which will allow scientists from around the world to study some of the most distant, powerful and dynamic objects in the universe. The STS-93 crew numbers five: Commander Eileen M. Collins, Pilot Jeffrey S. Ashby, and Mission Specialists Stephen A. Hawley (Ph.D.), Coleman, and Michel Tognini of France, with the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as commander of a shuttle mission.

  3. Suit alleges cosmetology school targeted gays for removal.

    Science.gov (United States)

    1995-09-08

    A former executive at the [name removed] School of Beauty Culture has filed a lawsuit alleging that the school identifies employees who have higher than average health-care costs and then initiates a harassment campaign against these employees. According to the executive, [name removed], the school president discussed a plan to reduce expenses by decreasing health care insurance benefits. The suit states that the Philadelphia-based company follows a policy of identifying cancer patients and homosexuals and then targets these individuals for harassment and abuse. When Mr. [Name removed] was diagnosed with a brain tumor, he was subjected to a range of tactics that encouraged him to quit, including a barrage of verbal abuse, being barred from meetings of his peers, and an expanded workload. The former executive charges the school and its president with violating the Americans with Disabilities Act (ADA). Discovery in the litigation has begun, but no trial date has been scheduled.

  4. The body's tailored suit: Skin as a mechanical interface.

    Science.gov (United States)

    Tissot, Floriane S; Boulter, Etienne; Estrach, Soline; Féral, Chloé C

    2016-11-01

    Skin, by nature, is very similar to the Rouquayrol-Denayrouze suit mentioned by Jules Verne in Twenty Thousand Leagues Under the Sea: it allows "to risk (…) new physiological conditions without suffering any organic disorder". Mechanical cues, to the same extent as other environmental parameters, are such "new physiological conditions". Indeed, skin's primary function is to form a protective barrier to shield inner tissues from the external environment. This requires unique mechanical properties as well as the ability to sense mechanical cues from the environment in order to prevent or repair mechanical damages as well as to function as the primary mechanosensory interface of the whole body. Copyright © 2016 Elsevier GmbH. All rights reserved.

  5. STS-88 Mission Specialist Krikalev dons flight suit

    Science.gov (United States)

    1998-01-01

    In the Operations and Checkout Building, STS-88 Mission Specialist Sergei Konstantinovich Krikalev, a Russian cosmonaut, gives a thumbs up during suit check before launch. Mission STS-88 is expected to lift off at 3:56 a.m. EST with the six-member crew aboard Space Shuttle Endeavour on Dec. 3. Endeavour carries the Unity connecting module, which the crew will be mating with the Russian-built Zarya control module already in orbit. In addition to Unity, two small replacement electronics boxes are on board for possible repairs to Zarya batteries. The mission is expected to last 11 days, 19 hours and 49 minutes, landing at 10:17 p.m. EST on Dec. 14.

  6. The Characterization of Biosignatures in Caves Using an Instrument Suite

    Science.gov (United States)

    Uckert, Kyle; Chanover, Nancy J.; Getty, Stephanie; Voelz, David G.; Brinckerhoff, William B.; McMillan, Nancy; Xiao, Xifeng; Boston, Penelope J.; Li, Xiang; McAdam, Amy; Glenar, David A.; Chavez, Arriana

    2017-12-01

    The search for life and habitable environments on other Solar System bodies is a major motivator for planetary exploration. Due to the difficulty and significance of detecting extant or extinct extraterrestrial life in situ, several independent measurements from multiple instrument techniques will bolster the community's confidence in making any such claim. We demonstrate the detection of subsurface biosignatures using a suite of instrument techniques including IR reflectance spectroscopy, laser-induced breakdown spectroscopy, and scanning electron microscopy/energy dispersive X-ray spectroscopy. We focus our measurements on subterranean calcium carbonate field samples, whose biosignatures are analogous to those that might be expected on some high-interest astrobiology targets. In this work, we discuss the feasibility and advantages of using each of the aforementioned instrument techniques for the in situ search for biosignatures and present results on the autonomous characterization of biosignatures using multivariate statistical analysis techniques.

  7. Astronaut Neil Armstrong in Launch Complex 16 trailer during suiting up

    Science.gov (United States)

    1966-01-01

    Astronaut Neil A. Armstrong, command pilot of the Gemini 8 space flight, sits in the Launch Complex 16 trailer during suiting up operations for the Gemini 8 mission. Suit technician Jim Garrepy assists.

  8. Space Suit Simulator (S3) for Partial Gravity EVA Experimentation and Training Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Pressurized space suits impose high joint torques on the wearer, reducing mobility for upper and lower body motions. Using actual space suits in training or...

  9. Comparing apples and oranges: the Community Intercomparison Suite

    Science.gov (United States)

    Schutgens, Nick; Stier, Philip; Kershaw, Philip; Pascoe, Stephen

    2015-04-01

    Visual representation and comparison of geoscientific datasets presents a huge challenge due to the large variety of file formats and spatio-temporal sampling of data (be they observations or simulations). The Community Intercomparison Suite attempts to greatly simplify these tasks for users by offering an intelligent but simple command line tool for visualisation and colocation of diverse datasets. In addition, CIS can subset and aggregate large datasets into smaller more manageable datasets. Our philosophy is to remove as much as possible the need for specialist knowledge by the user of the structure of a dataset. The colocation of observations with model data is as simple as: "cis col ::" which will resample the simulation data to the spatio-temporal sampling of the observations, contingent on a few user-defined options that specify a resampling kernel. As an example, we apply CIS to a case study of biomass burning aerosol from the Congo. Remote sensing observations, in-situe observations and model data are shown in various plots, with the purpose of either comparing different datasets or integrating them into a single comprehensive picture. CIS can deal with both gridded and ungridded datasets of 2, 3 or 4 spatio-temporal dimensions. It can handle different spatial coordinates (e.g. longitude or distance, altitude or pressure level). CIS supports both HDF, netCDF and ASCII file formats. The suite is written in Python with entirely publicly available open source dependencies. Plug-ins allow a high degree of user-moddability. A web-based developer hub includes a manual and simple examples. CIS is developed as open source code by a specialist IT company under supervision of scientists from the University of Oxford and the Centre of Environmental Data Archival as part of investment in the JASMIN superdatacluster facility.

  10. An Integrated Suite of Tools to support Human Factors Engineering

    Energy Technology Data Exchange (ETDEWEB)

    Jacques V Hugo

    2001-08-01

    Human Factors Engineering (HFE) work for the nuclear industry imposes special demands on the practitioner in terms of the scope, complexity and safety requirements for humans in nuclear installations. Unfortunately HFE lags behind other engineering disciplines in the development and use of modern, powerful tools for the full range of analysis and design processes. HFE does not appear to be an attractive market for software and hardware developers and as a result, HFE practitioners usually have to rely on inefficient general-purpose tools like standard office software, or they have to use expensive special-purpose tools that offer only part of the solution they require and which also do not easily integrate with other tools. There have been attempts to develop generic software tools to support the HFE analyst and also to achieve some order and consistency in format and presentation. However, in spite of many years of development, very few tools have emerged that have achieved these goals. This would suggest the need for special tools, but existing commercial products have been found inadequate and to date not a single tool has been developed that adequately supports the special requirements of HFE work for the nuclear industry. This paper describes an integrated suite of generic as well as purpose-built tools that facilitate information solicitation, issues tracking, work domain analysis, functional requirements analysis, function allocation, operational sequence analysis, task analysis and development of HSI design requirements. In combination, this suite of tools supports the analytical as well as the representational aspects of key HFE activities primarily for new NPPs, including capturing information from subject matter experts and various source documents directly into the appropriate tool and then linking, analyzing and extending that information further to represent detailed functional and task information, and ultimately HSI design requirements. The paper

  11. A Habermasian Approach to Critical Reading

    Science.gov (United States)

    Lee, Cheu-jey

    2016-01-01

    This article explores the connection between critical reading and Jurgen Habermas's theory of communicative action. It proposes that Habermas's criteria used for evaluating validity claims in communicative action can be applied in reading texts critically. Analyses of different types of texts are presented to show how critical reading is done in a…

  12. Identifying the Basic Elements of Critical Reading.

    Science.gov (United States)

    Schnell, Thomas R.

    A review of the professional and research literature suggests that definitions of critical reading remain tenuous and somewhat conflicting, largely because of the weakness in validity of current tests of critical reading. Ability to read or think critically appears to be closely related to general mental ability and may be dependent on literal…

  13. Modeling and dynamic simulation of astronaut's upper limb motions considering counter torques generated by the space suit.

    Science.gov (United States)

    Li, Jingwen; Ye, Qing; Ding, Li; Liao, Qianfang

    2017-07-01

    Extravehicular activity (EVA) is an inevitable task for astronauts to maintain proper functions of both the spacecraft and the space station. Both experimental research in a microgravity simulator (e.g. neutral buoyancy tank, zero-g aircraft or a drop tower/tube) and mathematical modeling were used to study EVA to provide guidance for the training on Earth and task design in space. Modeling has become more and more promising because of its efficiency. Based on the task analysis, almost 90% of EVA activity is accomplished through upper limb motions. Therefore, focusing on upper limb models of the body and space suit is valuable to this effort. In previous modeling studies, some multi-rigid-body systems were developed to simplify the human musculoskeletal system, and the space suit was mostly considered as a part of the astronaut body. With the aim to improve the reality of the models, we developed an astronauts' upper limb model, including a torque model and a muscle-force model, with the counter torques from the space suit being considered as a boundary condition. Inverse kinematics and the Maggi-Kane's method was applied to calculate the joint angles, joint torques and muscle force given that the terminal trajectory of upper limb motion was known. Also, we validated the muscle-force model using electromyogram (EMG) data collected in a validation experiment. Muscle force calculated from our model presented a similar trend with the EMG data, supporting the effectiveness and feasibility of the muscle-force model we established, and also, partially validating the joint model in kinematics aspect.

  14. Critical Vidders

    DEFF Research Database (Denmark)

    Svegaard, Robin Sebastian Kaszmarczyk

    2015-01-01

    This article will introduce and take a look at a specific subset of the fan created remix videos known as vids, namely those that deal with feminist based critique of media. Through examples, it will show how fans construct and present their critique, and finally broach the topic of the critical ...

  15. Critical reading and critical thinking Critical reading and critical thinking

    Directory of Open Access Journals (Sweden)

    Loni Kreis Taglieber

    2008-04-01

    Full Text Available The purpose of this paper is to provide, for L1 and L2 reading and writing teachers, a brief overview of the literature about critical reading and higher level thinking skills. The teaching of these skills is still neglected in some language classes in Brazil, be it in L1 or in L2 classes. Thus, this paper may also serve as a resource guide for L1 and/or L2 reading and writing teachers who want to incorporate critical reading and thinking into their classes. In modern society, even in everyday life people frequently need to deal with complicated public and political issues, make decisions, and solve problems. In order to do this efficiently and effectively, citizens must be able to evaluate critically what they see, hear, and read. Also, with the huge amount of printed material available in all areas in this age of “information explosion” it is easy to feel overwhelmed. But often the information piled up on people’s desks and in their minds is of no use due to the enormous amount of it. The purpose of this paper is to provide, for L1 and L2 reading and writing teachers, a brief overview of the literature about critical reading and higher level thinking skills. The teaching of these skills is still neglected in some language classes in Brazil, be it in L1 or in L2 classes. Thus, this paper may also serve as a resource guide for L1 and/or L2 reading and writing teachers who want to incorporate critical reading and thinking into their classes. In modern society, even in everyday life people frequently need to deal with complicated public and political issues, make decisions, and solve problems. In order to do this efficiently and effectively, citizens must be able to evaluate critically what they see, hear, and read. Also, with the huge amount of printed material available in all areas in this age of “information explosion” it is easy to feel overwhelmed. But often the information piled up on people’s desks and in their minds is of

  16. Multicopter Design Optimization and Validation

    Directory of Open Access Journals (Sweden)

    Øyvind Magnussen

    2015-04-01

    Full Text Available This paper presents a method for optimizing the design of a multicopter unmanned aerial vehicle (UAV, also called multirotor or drone. In practice a set of datasheets is available to the designer for the various components such as battery pack, motor and propellers. The designer can not normally design the parameters of the actuator system freely, but is constrained to pick components based on available datasheets. The mixed-integer programming approach is well suited to design optimization in such cases when only a discrete set of components is available. The paper also includes an experimental section where the simulated dynamic responses of optimized designs are compared against the experimental results. The paper demonstrates that mixed-integer programming is well suited to design optimization of multicopter UAVs and that the modeling assumptions match well with the experimental validation.

  17. Validation of software for calculating the likelihood ratio for parentage and kinship.

    Science.gov (United States)

    Drábek, J

    2009-03-01

    Although the likelihood ratio is a well-known statistical technique, commercial off-the-shelf (COTS) software products for its calculation are not sufficiently validated to suit general requirements for the competence of testing and calibration laboratories (EN/ISO/IEC 17025:2005 norm) per se. The software in question can be considered critical as it directly weighs the forensic evidence allowing judges to decide on guilt or innocence or to identify person or kin (i.e.: in mass fatalities). For these reasons, accredited laboratories shall validate likelihood ratio software in accordance with the above norm. To validate software for calculating the likelihood ratio in parentage/kinship scenarios I assessed available vendors, chose two programs (Paternity Index and familias) for testing, and finally validated them using tests derived from elaboration of the available guidelines for the field of forensics, biomedicine, and software engineering. MS Excel calculation using known likelihood ratio formulas or peer-reviewed results of difficult paternity cases were used as a reference. Using seven testing cases, it was found that both programs satisfied the requirements for basic paternity cases. However, only a combination of two software programs fulfills the criteria needed for our purpose in the whole spectrum of functions under validation with the exceptions of providing algebraic formulas in cases of mutation and/or silent allele.

  18. Methodology and issues of integral experiments selection for nuclear data validation

    Directory of Open Access Journals (Sweden)

    Tatiana Ivanova

    2017-01-01

    Full Text Available Nuclear data validation involves a large suite of Integral Experiments (IEs for criticality, reactor physics and dosimetry applications. [1] Often benchmarks are taken from international Handbooks. [2, 3] Depending on the application, IEs have different degrees of usefulness in validation, and usually the use of a single benchmark is not advised; indeed, it may lead to erroneous interpretation and results. [1] This work aims at quantifying the importance of benchmarks used in application dependent cross section validation. The approach is based on well-known General Linear Least Squared Method (GLLSM extended to establish biases and uncertainties for given cross sections (within a given energy interval. The statistical treatment results in a vector of weighting factors for the integral benchmarks. These factors characterize the value added by a benchmark for nuclear data validation for the given application. The methodology is illustrated by one example, selecting benchmarks for 239Pu cross section validation. The studies were performed in the framework of Subgroup 39 (Methods and approaches to provide feedback from nuclear and covariance data adjustment for improvement of nuclear data files established at the Working Party on International Nuclear Data Evaluation Cooperation (WPEC of the Nuclear Science Committee under the Nuclear Energy Agency (NEA/OECD.

  19. Methodology and issues of integral experiments selection for nuclear data validation

    Science.gov (United States)

    Tatiana, Ivanova; Ivanov, Evgeny; Hill, Ian

    2017-09-01

    Nuclear data validation involves a large suite of Integral Experiments (IEs) for criticality, reactor physics and dosimetry applications. [1] Often benchmarks are taken from international Handbooks. [2, 3] Depending on the application, IEs have different degrees of usefulness in validation, and usually the use of a single benchmark is not advised; indeed, it may lead to erroneous interpretation and results. [1] This work aims at quantifying the importance of benchmarks used in application dependent cross section validation. The approach is based on well-known General Linear Least Squared Method (GLLSM) extended to establish biases and uncertainties for given cross sections (within a given energy interval). The statistical treatment results in a vector of weighting factors for the integral benchmarks. These factors characterize the value added by a benchmark for nuclear data validation for the given application. The methodology is illustrated by one example, selecting benchmarks for 239Pu cross section validation. The studies were performed in the framework of Subgroup 39 (Methods and approaches to provide feedback from nuclear and covariance data adjustment for improvement of nuclear data files) established at the Working Party on International Nuclear Data Evaluation Cooperation (WPEC) of the Nuclear Science Committee under the Nuclear Energy Agency (NEA/OECD).

  20. A suite of benchmark and challenge problems for enhanced geothermal systems

    Energy Technology Data Exchange (ETDEWEB)

    White, Mark; Fu, Pengcheng; McClure, Mark; Danko, George; Elsworth, Derek; Sonnenthal, Eric; Kelkar, Sharad; Podgorney, Robert

    2017-11-06

    A diverse suite of numerical simulators is currently being applied to predict or understand the performance of enhanced geothermal systems (EGS). To build confidence and identify critical development needs for these analytical tools, the United States Department of Energy, Geothermal Technologies Office sponsored a Code Comparison Study (GTO-CCS), with participants from universities, industry, and national laboratories. A principal objective for the study was to create a community forum for improvement and verification of numerical simulators for EGS modeling. Teams participating in the study were those representing U.S. national laboratories, universities, and industries, and each team brought unique numerical simulation capabilities to bear on the problems. Two classes of problems were developed during the study, benchmark problems and challenge problems. The benchmark problems were structured to test the ability of the collection of numerical simulators to solve various combinations of coupled thermal, hydrologic, geomechanical, and geochemical processes. This class of problems was strictly defined in terms of properties, driving forces, initial conditions, and boundary conditions. The challenge problems were based on the enhanced geothermal systems research conducted at Fenton Hill, near Los Alamos, New Mexico, between 1974 and 1995. The problems involved two phases of research, stimulation, development, and circulation in two separate reservoirs. The challenge problems had specific questions to be answered via numerical simulation in three topical areas: 1) reservoir creation/stimulation, 2) reactive and passive transport, and 3) thermal recovery. Whereas the benchmark class of problems were designed to test capabilities for modeling coupled processes under strictly specified conditions, the stated objective for the challenge class of problems was to demonstrate what new understanding of the Fenton Hill experiments could be realized via the application of

  1. A comprehensive software suite for protein family construction and functional site prediction.

    Directory of Open Access Journals (Sweden)

    David Renfrew Haft

    Full Text Available In functionally diverse protein families, conservation in short signature regions may outperform full-length sequence comparisons for identifying proteins that belong to a subgroup within which one specific aspect of their function is conserved. The SIMBAL workflow (Sites Inferred by Metabolic Background Assertion Labeling is a data-mining procedure for finding such signature regions. It begins by using clues from genomic context, such as co-occurrence or conserved gene neighborhoods, to build a useful training set from a large number of uncharacterized but mutually homologous proteins. When training set construction is successful, the YES partition is enriched in proteins that share function with the user's query sequence, while the NO partition is depleted. A selected query sequence is then mined for short signature regions whose closest matches overwhelmingly favor proteins from the YES partition. High-scoring signature regions typically contain key residues critical to functional specificity, so proteins with the highest sequence similarity across these regions tend to share the same function. The SIMBAL algorithm was described previously, but significant manual effort, expertise, and a supporting software infrastructure were required to prepare the requisite training sets. Here, we describe a new, distributable software suite that speeds up and simplifies the process for using SIMBAL, most notably by providing tools that automate training set construction. These tools have broad utility for comparative genomics, allowing for flexible collection of proteins or protein domains based on genomic context as well as homology, a capability that can greatly assist in protein family construction. Armed with this new software suite, SIMBAL can serve as a fast and powerful in silico alternative to direct experimentation for characterizing proteins and their functional interactions.

  2. 77 FR 27135 - HACCP Systems Validation

    Science.gov (United States)

    2012-05-09

    ...; ] DEPARTMENT OF AGRICULTURE Food Safety and Inspection Service 9 CFR Part 417 HACCP Systems Validation AGENCY... an official establishment of its Hazard Analysis Critical Control Point (HACCP) system, that is, validation of both the critical control points (CCPs) in the HACCP plan and any interventions or processes...

  3. Critical scattering

    Energy Technology Data Exchange (ETDEWEB)

    Stirling, W.G. [Liverpool Univ., Dep. of Physics, Liverpool (United Kingdom); Perry, S.C. [Keele Univ. (United Kingdom). Dept. of Physics

    1996-12-31

    We outline the theoretical and experimental background to neutron scattering studies of critical phenomena at magnetic and structural phase transitions. The displacive phase transition of SrTiO{sub 3} is discussed, along with examples from recent work on magnetic materials from the rare-earth (Ho, Dy) and actinide (NpAs, NpSb, USb) classes. The impact of synchrotron X-ray scattering is discussed in conclusion. (author) 13 figs., 18 refs.

  4. Upper cretaceous magmatic suites of the Timok magmatic complex

    Directory of Open Access Journals (Sweden)

    Banješević Miodrag

    2010-01-01

    Full Text Available The Upper Cretaceous Timok Magmatic Complex (TMC developed on a continental crust composed of different types of Proterozoic to Lower Cretaceous rocks. The TMC consists of the magmatic suites: Timok andesite (AT - Turonian-Santonian, Metovnica epiclastite (EM - Coniacian-Campanian, Osnić basaltic andesite (AO and Ježevica andesite (AJ - Santonian-Campanian, Valja Strž plutonite (PVS - Campanian and Boljevac latite (LB. The sedimentary processes and volcanic activity of the TMC lasted nearly continuously throughout nearly the whole Late Cretaceous. The sedimentation lasted from the Albian to the Maastrichtian and the magmatism lasted for 10 million years, from the Upper Turonian to the Upper Campanian. The volcanic front migrated from East to West. The volcanic processes were characterized by the domination of extrusive volcanic facies, a great amount of volcanic material, a change in the depositional environment during the volcanic cycle, sharp facial transitions and a huge deposition of syn- and post-eruptive resedimented volcaniclastics.

  5. The possession law suit, caused by forbidden immissions

    Directory of Open Access Journals (Sweden)

    Popov Danica D.

    2015-01-01

    Full Text Available In the Serbian Law and in most of jurisdictions, there are limits on exercising the right of property. The real estate owner must refrain from activities by which the use of other real estate is being impoded through the immission of execive gasses, vapors, smoke, heat noise, tremors etc. The property ownership whose is affected by immission exceeding the set limits, has the right to request a stop of immisions which exceeded the allowed volume of immissions. In article author describes various kinds of immissions. The general feature of this law suit is that there is only discussion on the facts and not for a legal matters. Subject matter jurisdiction for the resolution of such disputes belongs to the court of general jurisdiction, while the disputes itself is a litigation. The special rule of proceedings of action of disturbance are: provisionality of the protection of possession; urgency in proceedings; initiation of proceedings; limiting of objection; prescribing temporary measures; rendering a ruling in the form of order; appeals which may be filed within a short deadline and which does not have suspensive effect (do not delay the execution of the order; revision is not allowed etc.

  6. Improvements to the APBS biomolecular solvation software suite.

    Science.gov (United States)

    Jurrus, Elizabeth; Engel, Dave; Star, Keith; Monson, Kyle; Brandi, Juan; Felberg, Lisa E; Brookes, David H; Wilson, Leighton; Chen, Jiahui; Liles, Karina; Chun, Minju; Li, Peter; Gohara, David W; Dolinsky, Todd; Konecny, Robert; Koes, David R; Nielsen, Jens Erik; Head-Gordon, Teresa; Geng, Weihua; Krasny, Robert; Wei, Guo-Wei; Holst, Michael J; McCammon, J Andrew; Baker, Nathan A

    2018-01-01

    The Adaptive Poisson-Boltzmann Solver (APBS) software was developed to solve the equations of continuum electrostatics for large biomolecular assemblages that have provided impact in the study of a broad range of chemical, biological, and biomedical applications. APBS addresses the three key technology challenges for understanding solvation and electrostatics in biomedical applications: accurate and efficient models for biomolecular solvation and electrostatics, robust and scalable software for applying those theories to biomolecular systems, and mechanisms for sharing and analyzing biomolecular electrostatics data in the scientific community. To address new research applications and advancing computational capabilities, we have continually updated APBS and its suite of accompanying software since its release in 2001. In this article, we discuss the models and capabilities that have recently been implemented within the APBS software package including a Poisson-Boltzmann analytical and a semi-analytical solver, an optimized boundary element solver, a geometry-based geometric flow solvation model, a graph theory-based algorithm for determining pK a values, and an improved web-based visualization tool for viewing electrostatics. © 2017 The Protein Society.

  7. Cyclic transgressive and regressive sequences, Paleocene Suite, Sirte basin, Libya

    Energy Technology Data Exchange (ETDEWEB)

    Abushagur, S.A.

    1986-05-01

    The Farrud lithofacies represent the main reservoir rock of the Ghani oil field and Western Concession Eleven of the Sirte basin, Libya. Eight microfacies are recognized in the Farrud lithofacies in the Ghani field area: (1) bryozoan-bioclastic (shallow, warm, normal marine shelf deposits); (2) micrite (suggesting quiet, low-energy conditions such as may have existed in a well-protected lagoon); (3) dasycladacean (very shallow, normal marine environment); (4) bioclastic (very shallow, normal marine environment with moderate to vigorous energy); (5) mgal (very shallow, normal marine environment in a shelf lagoon); (6) pelletal-skeletal (deposition within slightly agitated waters of a sheltered lagoon with restricted circulation); (7) dolomicrite (fenestrate structures indicating a high intertidal environment of deposition); and (8) anhydrite (supratidal environment). The Paleocene suite of the Farrud lithofacies generally shows a prograding, regressive sequence of three facies: (1) supratidal facies, characterized by nonfossiliferous anhydrite, dolomite, and dolomitic pelletal carbonate mudstone; (2) intertidal to very shallow subtidal facies, characterized by fossiliferous, pelletal, carbonate mudstone and skeletal calcarenite; and (3) subtidal facies, characterized by a skeletal, pelletal, carbonate mudstone. Source rocks were primarily organic-rich shales overlying the Farrud reservoir rock. Porosity and permeability were developed in part by such processes as dolomitization, leaching, and fracturing in the two progradational, regressive carbonate facies. Hydrocarbons were trapped by a supratidal, anhydrite cap rock.

  8. Freud: a software suite for high-throughput simulation analysis

    Science.gov (United States)

    Harper, Eric; Spellings, Matthew; Anderson, Joshua; Glotzer, Sharon

    Computer simulation is an indispensable tool for the study of a wide variety of systems. As simulations scale to fill petascale and exascale supercomputing clusters, so too does the size of the data produced, as well as the difficulty in analyzing these data. We present Freud, an analysis software suite for efficient analysis of simulation data. Freud makes no assumptions about the system being analyzed, allowing for general analysis methods to be applied to nearly any type of simulation. Freud includes standard analysis methods such as the radial distribution function, as well as new methods including the potential of mean force and torque and local crystal environment analysis. Freud combines a Python interface with fast, parallel C + + analysis routines to run efficiently on laptops, workstations, and supercomputing clusters. Data analysis on clusters reduces data transfer requirements, a prohibitive cost for petascale computing. Used in conjunction with simulation software, Freud allows for smart simulations that adapt to the current state of the system, enabling the study of phenomena such as nucleation and growth, intelligent investigation of phases and phase transitions, and determination of effective pair potentials.

  9. California court says disability benefits do not preclude suit.

    Science.gov (United States)

    1998-05-01

    A California appeals court reversed a lower court decision barring a worker from pursuing an HIV discrimination claim against his employer. [Name removed] claims that [name removed] violated California's Fair Employment and Housing Act when it rescinded accommodations that the bank had made earlier for HIV-related medical needs. The accommodations included a compressed work week and one day of telecommuting per week, which [name removed] performed well enough to earn a promotion. With a change in management, the accommodations were canceled, ostensibly to control costs. The lower court ruled that [name removed] was barred from suing his former employer because of statements on his disability insurance application. However, the appeals court ruled that [name removed]'s statements on the form were honest and did not preclude him from future litigation. Myron Quon, an attorney with Lambda Legal Defense and Education Fund in Los Angeles, noted that [name removed]'s deft handling of the questions was vital to the success of the suit. [Name removed] had made comments and notations on the form, rather than just checking the appropriate yes or no boxes, and noted that he could return to work with a reasonable accommodation. Others applying for disability are cautioned to do the same to preserve their legal rights.

  10. MEME SUITE: tools for motif discovery and searching.

    Science.gov (United States)

    Bailey, Timothy L; Boden, Mikael; Buske, Fabian A; Frith, Martin; Grant, Charles E; Clementi, Luca; Ren, Jingyuan; Li, Wilfred W; Noble, William S

    2009-07-01

    The MEME Suite web server provides a unified portal for online discovery and analysis of sequence motifs representing features such as DNA binding sites and protein interaction domains. The popular MEME motif discovery algorithm is now complemented by the GLAM2 algorithm which allows discovery of motifs containing gaps. Three sequence scanning algorithms--MAST, FIMO and GLAM2SCAN--allow scanning numerous DNA and protein sequence databases for motifs discovered by MEME and GLAM2. Transcription factor motifs (including those discovered using MEME) can be compared with motifs in many popular motif databases using the motif database scanning algorithm TOMTOM. Transcription factor motifs can be further analyzed for putative function by association with Gene Ontology (GO) terms using the motif-GO term association tool GOMO. MEME output now contains sequence LOGOS for each discovered motif, as well as buttons to allow motifs to be conveniently submitted to the sequence and motif database scanning algorithms (MAST, FIMO and TOMTOM), or to GOMO, for further analysis. GLAM2 output similarly contains buttons for further analysis using GLAM2SCAN and for rerunning GLAM2 with different parameters. All of the motif-based tools are now implemented as web services via Opal. Source code, binaries and a web server are freely available for noncommercial use at http://meme.nbcr.net.

  11. Critical reading and critical thinking

    Directory of Open Access Journals (Sweden)

    Loni Kreis Taglieber

    2003-01-01

    Full Text Available The purpose of this paper is to provide, for L1 and L2 reading and writing teachers, a brief overview of the literature about critical reading and higher level thinking skills. The teaching of these skills is still neglected in some language classes in Brazil, be it in L1 or in L2 classes. Thus, this paper may also serve as a resource guide for L1 and/or L2 reading and writing teachers who want to incorporate critical reading and thinking into their classes. In modern society, even in everyday life people frequently need to deal with complicated public and political issues, make decisions, and solve problems. In order to do this efficiently and effectively, citizens must be able to evaluate critically what they see, hear, and read. Also, with the huge amount of printed material available in all areas in this age of “information explosion” it is easy to feel overwhelmed. But often the information piled up on people’s desks and in their minds is of no use due to the enormous amount of it.

  12. Critical Mass

    CERN Multimedia

    AUTHOR|(CDS)2070299

    2017-01-01

    Critical Mass is a cycling event typically held on the last Friday of every month; its purpose is not usually formalized beyond the direct action of meeting at a set location and time and traveling as a group through city or town streets on bikes. The event originated in 1992 in San Francisco; by the end of 2003, the event was being held in over 300 cities around the world. At CERN it is held once a year in conjunction with the national Swiss campaing "Bike to work".

  13. Are critical items "critical" for the MMPI-A.

    Science.gov (United States)

    Archer, R P; Jacobson, J M

    1993-12-01

    This article examines one aspect of the potential usefulness of critical items to the: Minnesota Multiphasic Personality Inventory -Adolescent (MMPI-A). Endorsement frequency data are presented on the Koss-Butcher (1973) and the Lachar-Wrobeli (1979) critical items for Minnesota Multiphasic Personality Inventory-2 (MMPI-2) adult normative and clinical samples and for MMPI-A adolescent normative and clinical samples. Adolescents in both normal and clinical samples endorse critical items with a higher frequency than do normal adults. Further, results demonstrated that significant differences were uniformly found between the endorsement frequencies for normative versus clinical subjects for the MMPI-2 samples, whereas similar comparisons for the MMPI-A samples typically showed that adolescents in clinical setting did not endorse critical items more frequently than normal adolescents. These findings indicate that it may be difficult to construct critical item lists for adolescents based on the type of empirical methodology used with adults in which items are selected based on endorsement frequency differences found between comparison group. Beyond the issue of the technical difficulty in creating a critical item list for adolescents, several conceptual concerns are raised regarding the application of critical items to the MMPI-A. It was noted that the concept of "critical items" has not been we11 defined, and both the reliability and validity of critical items may be limited in adolescent populations.

  14. Verification and validation benchmarks.

    Energy Technology Data Exchange (ETDEWEB)

    Oberkampf, William Louis; Trucano, Timothy Guy

    2007-02-01

    Verification and validation (V&V) are the primary means to assess the accuracy and reliability of computational simulations. V&V methods and procedures have fundamentally improved the credibility of simulations in several high-consequence fields, such as nuclear reactor safety, underground nuclear waste storage, and nuclear weapon safety. Although the terminology is not uniform across engineering disciplines, code verification deals with assessing the reliability of the software coding, and solution verification deals with assessing the numerical accuracy of the solution to a computational model. Validation addresses the physics modeling accuracy of a computational simulation by comparing the computational results with experimental data. Code verification benchmarks and validation benchmarks have been constructed for a number of years in every field of computational simulation. However, no comprehensive guidelines have been proposed for the construction and use of V&V benchmarks. For example, the field of nuclear reactor safety has not focused on code verification benchmarks, but it has placed great emphasis on developing validation benchmarks. Many of these validation benchmarks are closely related to the operations of actual reactors at near-safety-critical conditions, as opposed to being more fundamental-physics benchmarks. This paper presents recommendations for the effective design and use of code verification benchmarks based on manufactured solutions, classical analytical solutions, and highly accurate numerical solutions. In addition, this paper presents recommendations for the design and use of validation benchmarks, highlighting the careful design of building-block experiments, the estimation of experimental measurement uncertainty for both inputs and outputs to the code, validation metrics, and the role of model calibration in validation. It is argued that the understanding of predictive capability of a computational model is built on the level of

  15. Developing defensive aids suite technology on a virtual battlefield

    Science.gov (United States)

    Rapanotti, John L.; DeMontigny-Leboeuf, Annie; Palmarini, Marc; Cantin, Andre

    2002-07-01

    Modern anti-tank missiles and the requirement of rapid deployment are limiting the use of passive armour in protecting land vehicles. Vehicle survivability is becoming more dependent on sensors, computers and countermeasures to detect and avoid threats. The integration of various technologies into a Defensive Aids Suite (DAS) can be designed and analyzed by combining field trials and laboratory data with modeling and simulation. MATLAB is used as a quick prototyping tool to model DAS systems and facilitate transfer to other researchers. The DAS model can be transferred from MATLAB or programmed directly in ModSAF (Modular Semi-Automated Forces), which is used to construct the virtual battlefield. Through scripted input files, a fixed battle approach ensures implementation and analysis meeting the requirements of three different interests. These three communities include the scientists and engineers, military and operations research. This approach ensures the modelling of processes known to be important regardless of the level of information available about the system. A system can be modelled phenomenologically until more information is available. Further processing of the simulation can be used to optimize the vehicle for a specific mission. ModSAF will be used to analyze and plan trials and develop DAS technology for future vehicles. Survivability of a DAS-equipped vehicle can be assessed relative to a basic vehicle without a DAS. In later stages, more complete DAS systems will be analyzed to determine the optimum configuration of the DAS components and the effectiveness of a DAS-equipped vehicle for specific missions. These concepts and approach will be discussed in the paper.

  16. Integrating Oncology Massage Into Chemoinfusion Suites: A Program Evaluation.

    Science.gov (United States)

    Mao, Jun J; Wagner, Karen E; Seluzicki, Christina M; Hugo, Audra; Galindez, Laura K; Sheaffer, Heather; Fox, Kevin R

    2017-03-01

    This article reports on the development, implementation, and evaluation of an integrative clinical oncology massage program for patients undergoing chemotherapy for breast cancer in a large academic medical center. We describe the development and implementation of an oncology massage program embedded into chemoinfusion suites. We used deidentified program evaluation data to identify specific reasons individuals refuse massage and to evaluate the immediate impact of massage treatments on patient-reported outcomes using a modified version of the Distress Thermometer delivered via iPad. We analyzed premassage and postmassage data from the Distress Thermometer using paired t test and derived qualitative data from participants who provided written feedback on their massage experiences. Of the 1,090 massages offered, 692 (63%) were accepted. We observed a significant decrease in self-reported anxiety (from 3.9 to 1.7), nausea (from 2.5 to 1.2), pain (from 3.3 to 1.9), and fatigue (from 4.8 to 3.0) premassage and postmassage, respectively (all P massage, and 649 (94%) would recommend it to another patient undergoing treatment. Spontaneous patient responses overwhelmingly endorsed the massage as relaxing. No adverse events were reported. Among the 398 patients (36%) who declined a massage, top reasons were time concerns and lack of interest. A clinical oncology massage program can be safely and effectively integrated into chemoinfusion units to provide symptom control for patients with breast cancer. This integrative approach overcomes patient-level barriers of cost, time, and travel, and addresses the institutional-level barrier of space.

  17. BioWord: A sequence manipulation suite for Microsoft Word

    Directory of Open Access Journals (Sweden)

    Anzaldi Laura J

    2012-06-01

    Full Text Available Abstract Background The ability to manipulate, edit and process DNA and protein sequences has rapidly become a necessary skill for practicing biologists across a wide swath of disciplines. In spite of this, most everyday sequence manipulation tools are distributed across several programs and web servers, sometimes requiring installation and typically involving frequent switching between applications. To address this problem, here we have developed BioWord, a macro-enabled self-installing template for Microsoft Word documents that integrates an extensive suite of DNA and protein sequence manipulation tools. Results BioWord is distributed as a single macro-enabled template that self-installs with a single click. After installation, BioWord will open as a tab in the Office ribbon. Biologists can then easily manipulate DNA and protein sequences using a familiar interface and minimize the need to switch between applications. Beyond simple sequence manipulation, BioWord integrates functionality ranging from dyad search and consensus logos to motif discovery and pair-wise alignment. Written in Visual Basic for Applications (VBA as an open source, object-oriented project, BioWord allows users with varying programming experience to expand and customize the program to better meet their own needs. Conclusions BioWord integrates a powerful set of tools for biological sequence manipulation within a handy, user-friendly tab in a widely used word processing software package. The use of a simple scripting language and an object-oriented scheme facilitates customization by users and provides a very accessible educational platform for introducing students to basic bioinformatics algorithms.

  18. BioWord: a sequence manipulation suite for Microsoft Word.

    Science.gov (United States)

    Anzaldi, Laura J; Muñoz-Fernández, Daniel; Erill, Ivan

    2012-06-07

    The ability to manipulate, edit and process DNA and protein sequences has rapidly become a necessary skill for practicing biologists across a wide swath of disciplines. In spite of this, most everyday sequence manipulation tools are distributed across several programs and web servers, sometimes requiring installation and typically involving frequent switching between applications. To address this problem, here we have developed BioWord, a macro-enabled self-installing template for Microsoft Word documents that integrates an extensive suite of DNA and protein sequence manipulation tools. BioWord is distributed as a single macro-enabled template that self-installs with a single click. After installation, BioWord will open as a tab in the Office ribbon. Biologists can then easily manipulate DNA and protein sequences using a familiar interface and minimize the need to switch between applications. Beyond simple sequence manipulation, BioWord integrates functionality ranging from dyad search and consensus logos to motif discovery and pair-wise alignment. Written in Visual Basic for Applications (VBA) as an open source, object-oriented project, BioWord allows users with varying programming experience to expand and customize the program to better meet their own needs. BioWord integrates a powerful set of tools for biological sequence manipulation within a handy, user-friendly tab in a widely used word processing software package. The use of a simple scripting language and an object-oriented scheme facilitates customization by users and provides a very accessible educational platform for introducing students to basic bioinformatics algorithms.

  19. A Freezable Heat Exchanger for Space Suit Radiator Systems

    Science.gov (United States)

    Nabity, James A.; Mason, Georgia R.; Copeland, Robert J.; Trevino, Luis a.

    2008-01-01

    During an ExtraVehicular Activity (EVA), both the heat generated by the astronaut s metabolism and that produced by the Portable Life Support System (PLSS) must be rejected to space. The heat sources include the heat of adsorption of metabolic CO2, the heat of condensation of water, the heat removed from the body by the liquid cooling garment and the load from the electrical components. Although the sublimator hardware to reject this load weighs only 1.58 kg (3.48 lbm), an additional 3.6 kg (8 lbm) of water are loaded into the unit, most of which is sublimated and lost to space, thus becoming the single largest expendable during an eight-hour EVA. Using a radiator to reject heat from the astronaut during an EVA can reduce the amount of expendable water consumed in the sublimator. Radiators have no moving parts and are thus highly reliable. Past freezable radiators have been too heavy, but the weight can be greatly reduced by placing a small and freeze tolerant heat exchanger between the astronaut and radiator, instead of making the very large radiator freeze tolerant. Therefore, the key technological innovation to improve space suit radiator performance was the development of a lightweight and freezable heat exchanger that accommodates the variable heat load generated by the astronaut. Herein, we present the heat transfer performance of a newly designed heat exchanger that endured several freeze / thaw cycles without any apparent damage. The heat exchanger was also able to continuously turn down or turn up the heat rejection to follow the variable load.

  20. Micro flame-based detector suite for universal gas sensing.

    Energy Technology Data Exchange (ETDEWEB)

    Hamilton, Thomas Warren; Washburn, Cody M.; Moorman, Matthew Wallace; Manley, Robert George; Lewis, Patrick Raymond; Miller, James Edward; Clem, Paul Gilbert; Shelmidine, Gregory J.; Manginell, Ronald Paul; Okandan, Murat

    2005-11-01

    A microflame-based detector suit has been developed for sensing of a broad range of chemical analytes. This detector combines calorimetry, flame ionization detection (FID), nitrogen-phosphorous detection (NPD) and flame photometric detection (FPD) modes into one convenient platform based on a microcombustor. The microcombustor consists in a micromachined microhotplate with a catalyst or low-work function material added to its surface. For the NPD mode a low work function material selectively ionizes chemical analytes; for all other modes a supported catalyst such as platinum/alumina is used. The microcombustor design permits rapid, efficient heating of the deposited film at low power. To perform calorimetric detection of analytes, the change in power required to maintain the resistive microhotplate heater at a constant temperature is measured. For FID and NPD modes, electrodes are placed around the microcombustor flame zone and an electrometer circuit measures the production of ions. For FPD, the flame zone is optically interrogated to search for light emission indicative of deexcitation of flame-produced analyte compounds. The calorimetric and FID modes respond generally to all hydrocarbons, while sulfur compounds only alarm in the calorimetric mode, providing speciation. The NPD mode provides 10,000:1 selectivity of nitrogen and phosphorous compounds over hydrocarbons. The FPD can distinguish between sulfur and phosphorous compounds. Importantly all detection modes can be established on one convenient microcombustor platform, in fact the calorimetric, FID and FPD modes can be achieved simultaneously on only one microcombustor. Therefore, it is possible to make a very universal chemical detector array with as little as two microcombustor elements. A demonstration of the performance of the microcombustor in each of the detection modes is provided herein.

  1. Model for Predicting the Performance of Planetary Suit Hip Bearing Designs

    Science.gov (United States)

    Cowley, Matthew S.; Margerum, Sarah; Hharvill, Lauren; Rajulu, Sudhakar

    2012-01-01

    Designing a space suit is very complex and often requires difficult trade-offs between performance, cost, mass, and system complexity. During the development period of the suit numerous design iterations need to occur before the hardware meets human performance requirements. Using computer models early in the design phase of hardware development is advantageous, by allowing virtual prototyping to take place. A virtual design environment allows designers to think creatively, exhaust design possibilities, and study design impacts on suit and human performance. A model of the rigid components of the Mark III Technology Demonstrator Suit (planetary-type space suit) and a human manikin were created and tested in a virtual environment. The performance of the Mark III hip bearing model was first developed and evaluated virtually by comparing the differences in mobility performance between the nominal bearing configurations and modified bearing configurations. Suited human performance was then simulated with the model and compared to actual suited human performance data using the same bearing configurations. The Mark III hip bearing model was able to visually represent complex bearing rotations and the theoretical volumetric ranges of motion in three dimensions. The model was also able to predict suited human hip flexion and abduction maximums to within 10% of the actual suited human subject data, except for one modified bearing condition in hip flexion which was off by 24%. Differences between the model predictions and the human subject performance data were attributed to the lack of joint moment limits in the model, human subject fitting issues, and the limited suit experience of some of the subjects. The results demonstrate that modeling space suit rigid segments is a feasible design tool for evaluating and optimizing suited human performance. Keywords: space suit, design, modeling, performance

  2. Testing-Based Compiler Validation for Synchronous Languages

    Science.gov (United States)

    Garoche, Pierre-Loic; Howar, Falk; Kahsai, Temesghen; Thirioux, Xavier

    2014-01-01

    In this paper we present a novel lightweight approach to validate compilers for synchronous languages. Instead of verifying a compiler for all input programs or providing a fixed suite of regression tests, we extend the compiler to generate a test-suite with high behavioral coverage and geared towards discovery of faults for every compiled artifact. We have implemented and evaluated our approach using a compiler from Lustre to C.

  3. Dictionary criticism

    DEFF Research Database (Denmark)

    Nielsen, Sandro

    2018-01-01

    Dictionary criticism is part of the lexicographical universe and reviewing of electronic and printed dictionaries is not an exercise in linguistics or in subject fields but an exercise in lexicography. It does not follow from this that dictionary reviews should not be based on a linguistic approach......, but that the linguistic approach is only one of several approaches to dictionary reviewing. Similarly, the linguistic and factual competences of reviewers should not be relegated to an insignificant position in the review process. Moreover, reviewers should define the object of their reviews, the dictionary, as a complex...... information tool with several components and in terms of significant lexicographical features: lexicographical functions, data and structures. This emphasises the fact that dictionaries are much more than mere vessels of linguistic categories, namely lexicographical tools that have been developed to fulfil...

  4. The gastrointestinal electrical mapping suite (GEMS): software for analyzing and visualizing high-resolution (multi-electrode) recordings in spatiotemporal detail.

    Science.gov (United States)

    Yassi, Rita; O'Grady, Gregory; Paskaranandavadivel, Nira; Du, Peng; Angeli, Timothy R; Pullan, Andrew J; Cheng, Leo K; Erickson, Jonathan C

    2012-06-06

    Gastrointestinal contractions are controlled by an underlying bioelectrical activity. High-resolution spatiotemporal electrical mapping has become an important advance for investigating gastrointestinal electrical behaviors in health and motility disorders. However, research progress has been constrained by the low efficiency of the data analysis tasks. This work introduces a new efficient software package: GEMS (Gastrointestinal Electrical Mapping Suite), for analyzing and visualizing high-resolution multi-electrode gastrointestinal mapping data in spatiotemporal detail. GEMS incorporates a number of new and previously validated automated analytical and visualization methods into a coherent framework coupled to an intuitive and user-friendly graphical user interface. GEMS is implemented using MATLAB®, which combines sophisticated mathematical operations and GUI compatibility. Recorded slow wave data can be filtered via a range of inbuilt techniques, efficiently analyzed via automated event-detection and cycle clustering algorithms, and high quality isochronal activation maps, velocity field maps, amplitude maps, frequency (time interval) maps and data animations can be rapidly generated. Normal and dysrhythmic activities can be analyzed, including initiation and conduction abnormalities. The software is distributed free to academics via a community user website and forum (http://sites.google.com/site/gimappingsuite). This software allows for the rapid analysis and generation of critical results from gastrointestinal high-resolution electrical mapping data, including quantitative analysis and graphical outputs for qualitative analysis. The software is designed to be used by non-experts in data and signal processing, and is intended to be used by clinical researchers as well as physiologists and bioengineers. The use and distribution of this software package will greatly accelerate efforts to improve the understanding of the causes and clinical consequences of

  5. The gastrointestinal electrical mapping suite (GEMS: software for analyzing and visualizing high-resolution (multi-electrode recordings in spatiotemporal detail

    Directory of Open Access Journals (Sweden)

    Yassi Rita

    2012-06-01

    Full Text Available Abstract Background Gastrointestinal contractions are controlled by an underlying bioelectrical activity. High-resolution spatiotemporal electrical mapping has become an important advance for investigating gastrointestinal electrical behaviors in health and motility disorders. However, research progress has been constrained by the low efficiency of the data analysis tasks. This work introduces a new efficient software package: GEMS (Gastrointestinal Electrical Mapping Suite, for analyzing and visualizing high-resolution multi-electrode gastrointestinal mapping data in spatiotemporal detail. Results GEMS incorporates a number of new and previously validated automated analytical and visualization methods into a coherent framework coupled to an intuitive and user-friendly graphical user interface. GEMS is implemented using MATLAB®, which combines sophisticated mathematical operations and GUI compatibility. Recorded slow wave data can be filtered via a range of inbuilt techniques, efficiently analyzed via automated event-detection and cycle clustering algorithms, and high quality isochronal activation maps, velocity field maps, amplitude maps, frequency (time interval maps and data animations can be rapidly generated. Normal and dysrhythmic activities can be analyzed, including initiation and conduction abnormalities. The software is distributed free to academics via a community user website and forum (http://sites.google.com/site/gimappingsuite. Conclusions This software allows for the rapid analysis and generation of critical results from gastrointestinal high-resolution electrical mapping data, including quantitative analysis and graphical outputs for qualitative analysis. The software is designed to be used by non-experts in data and signal processing, and is intended to be used by clinical researchers as well as physiologists and bioengineers. The use and distribution of this software package will greatly accelerate efforts to improve the

  6. Proposing "the burns suite" as a novel simulation tool for advancing the delivery of burns education.

    Science.gov (United States)

    Sadideen, Hazim; Wilson, David; Moiemen, Naiem; Kneebone, Roger

    2014-01-01

    Educational theory highlights the importance of contextualized simulation for effective learning. We explored this concept in a burns scenario in a novel, low-cost, high-fidelity, portable, immersive simulation environment (referred to as distributed simulation). This contextualized simulation/distributed simulation combination was named "The Burns Suite" (TBS). A pediatric burn resuscitation scenario was selected after high trainee demand. It was designed on Advanced Trauma and Life Support and Emergency Management of Severe Burns principles and refined using expert opinion through cognitive task analysis. TBS contained "realism" props, briefed nurses, and a simulated patient. Novices and experts were recruited. Five-point Likert-type questionnaires were developed for face and content validity. Cronbach's α was calculated for scale reliability. Semistructured interviews captured responses for qualitative thematic analysis allowing for data triangulation. Twelve participants completed TBS scenario. Mean face and content validity ratings were high (4.6 and 4.5, respectively; range, 4-5). The internal consistency of questions was high. Qualitative data analysis revealed that participants felt 1) the experience was "real" and they were "able to behave as if in a real resuscitation environment," and 2) TBS "addressed what Advanced Trauma and Life Support and Emergency Management of Severe Burns didn't" (including the efficacy of incorporating nontechnical skills). TBS provides a novel, effective simulation tool to significantly advance the delivery of burns education. Recreating clinical challenge is crucial to optimize simulation training. This low-cost approach also has major implications for surgical education, particularly during increasing financial austerity. Alternative scenarios and/or procedures can be recreated within TBS, providing a diverse educational immersive simulation experience.

  7. Development of the Variable Emittance Thermal Suite for the Space Technology 5 Microsatellite

    Science.gov (United States)

    Douglas, Donya M.; Swanson, Theodore; Osiander, Robert; Champion, John; Darrin, Ann Garrison; Biter, William; Chandrasekhar, Prasanna; Obenschain, Arthur (Technical Monitor)

    2001-01-01

    The advent of very small satellites, such as nano and microsatellites, logically leads to a requirement for smaller thermal control subsystems. In addition, the thermal control needs of the smaller spacecraft/instrument may well be different from more traditional situations. For example, power for traditional heaters may be very limited or unavailable, mass allocations may be severely limited, and fleets of nano/microsatellites will require a generic thermal design as the cost of unique designs will be prohibitive. Some applications may require significantly increased power levels while others may require extremely low heat loss for extended periods. Small spacecraft will have low thermal capacitance thus subjecting them to large temperature swings when either the heat generation rate changes or the thermal sink temperature changes. This situation, combined with the need for tighter temperature control, will present a challenging situation during transient operation. The use of "off-the-shelf" commercial spacecraft buses for science instruments will also present challenges. Older thermal technology, such as heaters, thermostats, and heat pipes, will almost certainly not be sufficient to meet the requirements of these new spacecraft/instruments. They are generally too heavy, not scalable to very small sizes, and may consume inordinate amounts of power. Hence there is a strong driver to develop new technology to meet these emerging needs. Variable emittance coatings offer an exciting alternative to traditional control methodologies and are one of the technologies that will be flown on Space Technology 5, a mission of three microsatellites designed to validate "enabling" technologies. Several studies have identified variable emittance coatings as applicable to a wide range of spacecraft, and to potentially offer substantial savings in mass and/or power over traditional approaches. This paper discusses the development of the variable emittance thermal suite for ST-5

  8. Technical note: DIRART--A software suite for deformable image registration and adaptive radiotherapy research.

    Science.gov (United States)

    Yang, Deshan; Brame, Scott; El Naqa, Issam; Aditya, Apte; Wu, Yu; Goddu, S Murty; Mutic, Sasa; Deasy, Joseph O; Low, Daniel A

    2011-01-01

    Recent years have witnessed tremendous progress in image guide radiotherapy technology and a growing interest in the possibilities for adapting treatment planning and delivery over the course of treatment. One obstacle faced by the research community has been the lack of a comprehensive open-source software toolkit dedicated for adaptive radiotherapy (ART). To address this need, the authors have developed a software suite called the Deformable Image Registration and Adaptive Radiotherapy Toolkit (DIRART). DIRART is an open-source toolkit developed in MATLAB. It is designed in an object-oriented style with focus on user-friendliness, features, and flexibility. It contains four classes of DIR algorithms, including the newer inverse consistency algorithms to provide consistent displacement vector field in both directions. It also contains common ART functions, an integrated graphical user interface, a variety of visualization and image-processing features, dose metric analysis functions, and interface routines. These interface routines make DIRART a powerful complement to the Computational Environment for Radiotherapy Research (CERR) and popular image-processing toolkits such as ITK. DIRART provides a set of image processing/registration algorithms and postprocessing functions to facilitate the development and testing of DIR algorithms. It also offers a good amount of options for DIR results visualization, evaluation, and validation. By exchanging data with treatment planning systems via DICOM-RT files and CERR, and by bringing image registration algorithms closer to radiotherapy applications, DIRART is potentially a convenient and flexible platform that may facilitate ART and DIR research. 0 2011 Ameri-

  9. Coding practice of the Journal Article Tag Suite extensible markup language

    Directory of Open Access Journals (Sweden)

    Sun Huh

    2014-08-01

    Full Text Available In general, the Journal Article Tag Suite (JATS extensible markup language (XML coding is processed automatically by an XML filtering program. In this article, the basic tagging in JATS is explained in terms of coding practice. A text editor that supports UTF-8 encoding is necessary to input JATS XML data that works in every language. Any character representable in Unicode can be used in JATS XML, and commonly available web browsers can be used to view JATS XML files. JATS XML files can refer to document type definitions, extensible stylesheet language files, and cascading style sheets, but they must specify the locations of those files. Tools for validating JATS XML files are available via the web sites of PubMed Central and ScienceCentral. Once these files are uploaded to a web server, they can be accessed from all over the world by anyone with a browser. Encoding an example article in JATS XML may help editors in deciding on the adoption of JATS XML.

  10. Network Coding Designs Suited for the Real World

    DEFF Research Database (Denmark)

    Pedersen, Morten Videbæk; Roetter, Daniel Enrique Lucani; Fitzek, Frank

    2013-01-01

    Network coding (NC) has attracted tremendous attention from the research community due to its potential to significantly improve networks' throughput, delay, and energy performance as well as a means to simplify protocol design and naturally providing security support. The possibilities in code d...... practical pitfalls, this paper seeks to identify key ingredients to a successful design, critical and common limitations to most intra-session NC systems as well as promising techniques and ideas to guide future models and research problems grounded on practical concerns....

  11. Oracle E-Business Suite Financials R12 A Functionality Guide

    CERN Document Server

    Iyer, Mohan

    2012-01-01

    This is a step-by-step functional guide to get you started easily with Oracle EBS Financials. If you are an Oracle E-Business Suite Financial consultant or an administrator looking to get a quick review on the capabilities of Oracle E-Business Suite and improve the use of the systems functionality, then this is the best guide for you. This book assumes that you have a fundamental knowledge of EBS Suite.

  12. The long-term Global LAnd Surface Satellite (GLASS) product suite and applications

    Science.gov (United States)

    Liang, S.

    2015-12-01

    Our Earth's environment is experiencing rapid changes due to natural variability and human activities. To monitor, understand and predict environment changes to meet the economic, social and environmental needs, use of long-term high-quality satellite data products is critical. The Global LAnd Surface Satellite (GLASS) product suite, generated at Beijing Normal University, currently includes 12 products, including leaf area index (LAI), broadband shortwave albedo, broadband longwave emissivity, downwelling shortwave radiation and photosynthetically active radiation, land surface skin temperature, longwave net radiation, daytime all-wave net radiation, fraction of absorbed photosynetically active radiation absorbed by green vegetation (FAPAR), fraction of green vegetation coverage, gross primary productivity (GPP), and evapotranspiration (ET). Most products span from 1981-2014. The algorithms for producing these products have been published in the top remote sensing related journals and books. More and more applications have being reported in the scientific literature. The GLASS products are freely available at the Center for Global Change Data Processing and Analysis of Beijing Normal University (http://www.bnu-datacenter.com/), and the University of Maryland Global Land Cover Facility (http://glcf.umd.edu). After briefly introducing the basic characteristics of GLASS products, we will present some applications on the long-term environmental changes detected from GLASS products at both global and local scales. Detailed analysis of regional hotspots, such as Greenland, Tibetan plateau, and northern China, will be emphasized, where environmental changes have been mainly associated with climate warming, drought, land-atmosphere interactions, and human activities.

  13. Utilizing a Suited Manikin Test Apparatus and Spacesuit Ventilation Loop to Evaluate Carbon Dioxide Washout

    Science.gov (United States)

    Chullen, Cinda; Conger, Bruce; Korona, Adam; Kanne, Bryan; McMillin, Summer; Norcross, Jason; Jeng, Frank; Swickrath, Mike

    2014-01-01

    NASA is pursuing technology development of an Advanced Extravehicular Mobility Unit (AEMU) which is an integrated assembly made up of primarily a pressure garment system and a Portable Life Support System (PLSS). The PLSS is further composed of an oxygen subsystem, a ventilation subsystem, and a thermal subsystem. One of the key functions of the ventilation system is to remove and control the carbon dioxide delivered to the crewmember. Carbon dioxide washout is the mechanism by which CO2 levels are controlled within the spacesuit helmet to limit the concentration of CO2 inhaled by the crew member. CO2 washout performance is a critical parameter needed to ensure proper and robust designs that are insensitive to human variabilities in a spacesuit. A Suited Manikin Test Apparatus (SMTA) is being developed to augment testing of the PLSS ventilation loop in order to provide a lower cost and more controlled alternative to human testing. The CO2 removal function is performed by the regenerative Rapid Cycle Amine (RCA) within the PLSS ventilation loop and its performance is evaluated within the integrated SMTA and Ventilation Loop test system. This paper will provide a detailed description of the schematics, test configurations, and hardware components of this integrated system. Results and analysis of testing performed with this integrated system will be presented within this paper.

  14. Suite Ventilation Characteristics of Current Canadian Mid-andHigh-Rise Residential Buildings

    Energy Technology Data Exchange (ETDEWEB)

    Wray, Craig P.

    2000-01-01

    This paper characterizes ventilation in residential suiteslocated in ll buildings were between six and thirty-two stories tall andwere built between 1990 and 1995. The key findings from field performancetests of these buildings were: 1. Corridor supply airflows usually didnot meet design flows.2. Makeup air paths for suite exhaust were notproperly designed.3. Suite access door leakage was highly variable andusually did not meet smoke control requirements.4. Airflow from thecorridor through the suite access door leakage appeared to be the primaryventilation air supply for suites.5. Suites were usually well-ventilated,but some were marginally- or under-ventilated.6. Poor pressure controloften allowed transfer air from one suite to another. Inter-suitetransfer air fractions ranged from 0 to 45 percent, with an average of 19percent. In summary, this work showed suite ventilation can be highlyinfluenced by corridor supply flows, by the treatment of corridor accessdoors, and by transfer airflows. As a result, suite ventilation at anygiven time in current mid- and high-rise residential buildings is verydifficult to predict. To ensure suite ventilation performs as intendedunder all operating conditions, the building industry needs to addressthe identified problems through improved ventilation design, operation,and maintenance practices.

  15. A Method for and Issues Associated with the Determination of Space Suit Joint Requirements

    Science.gov (United States)

    Matty, Jennifer E.; Aitchison, Lindsay

    2009-01-01

    In the design of a new space suit it is necessary to have requirements that define what mobility space suit joints should be capable of achieving in both a system and at the component level. NASA elected to divide mobility into its constituent parts-range of motion (ROM) and torque- in an effort to develop clean design requirements that limit subject performance bias and are easily verified. Unfortunately, the measurement of mobility can be difficult to obtain. Current technologies, such as the Vicon motion capture system, allow for the relatively easy benchmarking of range of motion (ROM) for a wide array of space suit systems. The ROM evaluations require subjects in the suit to accurately evaluate the ranges humans can achieve in the suit. However, when it comes to torque, there are significant challenges for both benchmarking current performance and writing requirements for future suits. This is reflected in the fact that torque definitions have been applied to very few types of space suits and with limited success in defining all the joints accurately. This paper discussed the advantages and disadvantages to historical joint torque evaluation methods, describes more recent efforts directed at benchmarking joint torques of prototype space suits, and provides an outline for how NASA intends to address joint torque in design requirements for the Constellation Space Suit System (CSSS).

  16. Argon used as dry suit insulation gas for cold-water diving

    OpenAIRE

    Vrijdag, Xavier CE; van Ooij, Pieter-Jan AM; van Hulst, Robert A

    2013-01-01

    Background Cold-water diving requires good thermal insulation because hypothermia is a serious risk. Water conducts heat more efficiently compared to air. To stay warm during a dive, the choice of thermal protection should be based on physical activity, the temperature of the water, and the duration of exposure. A dry suit, a diving suit filled with gas, is the most common diving suit in cold water. Air is the traditional dry suit inflation gas, whereas the thermal conductivity of argon is ap...

  17. A Parametric Model of Shoulder Articulation for Virtual Assessment of Space Suit Fit

    Science.gov (United States)

    Kim, K. Han; Young, Karen S.; Bernal, Yaritza; Boppana, Abhishektha; Vu, Linh Q.; Benson, Elizabeth A.; Jarvis, Sarah; Rajulu, Sudhakar L.

    2016-01-01

    Suboptimal suit fit is a known risk factor for crewmember shoulder injury. Suit fit assessment is however prohibitively time consuming and cannot be generalized across wide variations of body shapes and poses. In this work, we have developed a new design tool based on the statistical analysis of body shape scans. This tool is aimed at predicting the skin deformation and shape variations for any body size and shoulder pose for a target population. This new process, when incorporated with CAD software, will enable virtual suit fit assessments, predictively quantifying the contact volume, and clearance between the suit and body surface at reduced time and cost.

  18. Lightweight, Flexible, and Freezable Heat Pump/Radiator for EVA Suits Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Manned lunar exploration will require extravehicular activity (EVA) suits that surpass existing technology. We propose an innovative thermal control system for EVA...

  19. Critical care nursing.

    Science.gov (United States)

    Dracup, K

    1987-01-01

    The research pertaining to the delivery of nursing care in the ICU was reviewed to describe: the impact of the unit structure and organization, including policies and procedures, on patients, nurses, and families; the process of critical care nursing; the outcomes of critical care nursing; some of the ethical issues germane to the care of the critically ill patient. Although these areas of inquiry are quite diverse, a number of similarities can be identified. The most obvious of the similarities was that, with few exceptions, the studies pertaining to delivery of nursing care were performed by researchers from a variety of disciplines other than nursing, including medicine, psychology, public health, and economics. In many instances, such as the studies of patients' stress experiences in ICUs, these efforts enhanced our knowledge of the phenomena and complemented or replicated the efforts of nurse researchers. Unfortunately, in some areas nurse researchers were quite absent, with the result that the studies lacked a nursing perspective. For example, the large body of knowledge related to the effects of critical care on patient outcome reflected medicine's orientation toward cure. While it is important to measure the effect of nursing care in the ICU on patient survival, the effect of nursing efforts on short- and long-term quality of life, functional status, and health maintenance is also critical and remains unknown. Nurse researchers need to build on the data base already acquired about critical care. Even more important, they need to fashion programs of research focused on the concepts central to the discipline of nursing. A second similarity relates to the increasing quality of the reported research over the past decade. In general, early descriptive studies were conducted in a single critical care unit with a small and often biased sample. These gave way to more carefully designed, multicenter studies, although lack of randomization procedures continued to be

  20. Processing of terabytes of data for seismic noise analysis with the Python codes of the Whisper Suite. (Invited)

    Science.gov (United States)

    Briand, X.; Campillo, M.; Brenguier, F.; Boue, P.; Poli, P.; Roux, P.; Takeda, T.

    2013-12-01

    The Whisper Suite, as part of the ERC project Whisper (whisper.obs.ujf-grenoble.fr), is developed with the high-level programming language Python and uses intensively the scientific libraries Scipy and Obspy, which is dedicated to the seismological community (www.obspy.org). The Whisper Suite consists of several tools. It provides a flexible way to specify a pipeline of seismogram processing. The user can define his own sequence of treatments, can use the Python libraries he needs and eventually, can add his processing procedure to the Whisper Suite. Another package is dedicated to the computation of correlations. When dealing with large data set, computational time becomes a major difficulty and we devoted a lot of efforts to make possible the fast processing of the large data sets produced by the present day dense seismic networks. With the Whisper Suite, we manage currently more than 150TB of data for ambient noise analysis. For the computations of 68 millions correlations (daily, 5Hz, correlation window 3600s) on a 50 core cluster, with a dedicated disk array, the required time is 4 days. With a distributed storage (Irods) and a grid of clusters (mode best effort), both provided by the University of Grenoble, we compute currently one year of 4-hours correlations for 550 3C stations of the Hi-Net Japanese Network in one day (about 350 millions individual correlations) . Note that the quadratic space complexity can be critical. We developed also codes for the analysis of the correlations. The Whisper Suite is used to make challenging observations using cross-correlation techniques at various scales in the Earth. We present some examples of applications. Using a global data set of available broadband stations, we discuss the emergence of the complete teleseismic body wave wave field, including the deep phases used for imaging of the mantle and the core. The giant 2011 Tohoku-oki earthquake and the records of the dense Hi-Net array offer an opportunity to analyze

  1. A comparison of global rating scale and checklist scores in the validation of an evaluation tool to assess performance in the resuscitation of critically ill patients during simulated emergencies (abbreviated as "CRM simulator study IB").

    Science.gov (United States)

    Kim, John; Neilipovitz, David; Cardinal, Pierre; Chiu, Michelle

    2009-01-01

    Crisis resource management (CRM) skills are a set of nonmedical skills required to manage medical emergencies. There is currently no gold standard for evaluation of CRM performance. A prior study examined the use of a global rating scale (GRS) to evaluate CRM performance. This current study compared the use of a GRS and a checklist as formal rating instruments to evaluate CRM performance during simulated emergencies. First-year and third-year residents participated in two simulator scenarios each. Three raters then evaluated resident performance in CRM using edited video recordings using both a GRS and a checklist. The Ottawa GRS provides a seven-point anchored ordinal scale for performance in five categories of CRM, and an overall performance score. The Ottawa CRM checklist provides 12 items in the five categories of CRM, with a maximum cumulative score of 30 points. Construct validity was measured on the basis of content validity, response process, internal structure, and response to other variables. T-test analysis of Ottawa GRS scores was conducted to examine response to the variable of level of training. Intraclass correlation coefficient (ICC) scores were used to measure inter-rater reliability for both scenarios. Thirty-two first-year and 28 third-year residents participated in the study. Third-year residents produced higher mean scores for overall CRM performance than first-year residents (P CRM checklist (P CRM checklist. Users indicated a strong preference for the Ottawa GRS given ease of scoring, presence of an overall score, and the potential for formative evaluation. Construct validity seems to be present when using both the Ottawa GRS and CRM checklist to evaluate CRM performance during simulated emergencies. Data also indicate the presence of moderate inter-rater reliability when using both the Ottawa GRS and CRM checklist.

  2. Initial design and performance of the near surface unmanned aircraft system sensor suite in support of the GOES-R field campaign

    Science.gov (United States)

    Pearlman, Aaron J.; Padula, Francis; Shao, Xi; Cao, Changyong; Goodman, Steven J.

    2016-09-01

    One of the main objectives of the Geostationary Operational Environmental Satellite R-Series (GOES-R) field campaign is to validate the SI traceability of the Advanced Baseline Imager. The campaign plans include a feasibility demonstration study for new near surface unmanned aircraft system (UAS) measurement capability that is being developed to meet the challenges of validating geostationary sensors. We report our progress in developing our initial systems by presenting the design and preliminary characterization results of the sensor suite. The design takes advantage of off-the-shelf technologies and fiber-based optical components to make hemispheric directional measurements from a UAS. The characterization results - including laboratory measurements of temperature effects and polarization sensitivity - are used to refine the radiometric uncertainty budget towards meeting the validation objectives for the campaign. These systems will foster improved validation capabilities for the GOES-R field campaign and other next generation satellite systems.

  3. Conceptual optical design and system engineering of the CLARREO/RS (reflected solar) instrument suite

    Science.gov (United States)

    Thompson, Patrick L.; Hill, Peter C.

    2012-09-01

    The Climate Absolute Radiance and Refractivity Observatory (CLARREO) program objectives are recommended by the NRC as a Tier-1 mission in its January 15, 2007 Earth Science Decadal Survey to be the key component of a future decade-scale, global climate change observing system. The purpose of CLARREO is to make SI-traceable absolute observations sensitive to the most critical, but least understood climate forcing phenomena, responses, and feedbacks. NASA / LaRC is the mission lead as well as the Infrared (IR) instrument suite development lead. The Reflected Solar (RS) instrument lead center has been assigned to GSFC where engineering risk reduction and science calibration demonstration studies are being conducted on flight-like ETUs in anticipation of entry into Phase A. The RS instrument suite (SOLARIS) is composed of multiple all-aluminum, slit-based, push-broom imaging spectroradiometers of nearly identical construction. Each 'box' will be optimized to provide better than 8nm spectral resolution (using multiple detector elements) over a specific spectral band covering the 320-2300nm total range with significant overlaps to aid calibration. Optical design, fabrication, and alignment will provide for 500m nadir resolutions over a full slit field of 100km from an approximately 600km polar orbit greater than 90% of the time. SNRs are likewise required to exceed 33 for λ board GPS radio occultation receivers and inherent inter-calibration compatibility with existing and future Earth science and operational missions, these measurements will provide a long-term benchmarking data record for the detection, projection, and attribution of changes to our planet's climate system. The CLARREO Project team successfully completed its Mission Concept Review (MCR) on November 17, 2010 at LaRC with high marks and remains dedicated to the mission and its instruments. However, the launch readiness date (LRD) is yet to be determined pending budget directive updates from the White

  4. The Canadian Arctic ACE/OSIRIS Validation Project at PEARL: Validating Satellite Observations Over the High Arctic

    Science.gov (United States)

    Walker, Kaley A.; Strong, Kimberly; Fogal, Pierre F.; Drummond, James R.

    2016-04-01

    Ground-based measurements provide critical data for the validation of satellite retrievals of atmospheric trace gases and for the assessment of long-term stability of these measurements. As of February 2016, the Canadian-led Atmospheric Chemistry Experiment (ACE) satellite mission has been making measurements of the Earth's atmosphere for nearly twelve years and Canada's Optical Spectrograph and InfraRed Imager System (OSIRIS) instrument on the Odin satellite has been operating for fourteen years. As ACE and OSIRIS operations have extended beyond their planned two-year missions, there is an ongoing need to validate the trace gas data profiles from the ACE-Fourier Transform Spectrometer (ACE-FTS), the Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation (ACE-MAESTRO) and OSIRIS. In particular, validation comparisons are needed during Arctic springtime to understand better the measurements of species involved in stratospheric ozone chemistry. To this end, thirteen Canadian Arctic ACE/OSIRIS Validation Campaigns have been conducted during the spring period (February - April in 2004 - 2016) at the Polar Environment Atmospheric Research Laboratory (PEARL) in Eureka, Nunavut (80N, 86W). For the past decade, these campaigns have been undertaken in collaboration with the Canadian Network for the Detection of Atmospheric Change (CANDAC). The spring period coincides with the most chemically active time of year in the Arctic, as well as a significant number of satellite overpasses. A suite of as many as 12 ground-based instruments, as well as frequent balloon-borne ozonesonde and radiosonde launches, have been used in each campaign. These instruments include: a ground-based version of the ACE-FTS (PARIS - Portable Atmospheric Research Interferometric Spectrometer), a terrestrial version of the ACE-MAESTRO, a SunPhotoSpectrometer, two CANDAC zenith-viewing UV-visible grating spectrometers, a Bomem DA8 Fourier transform spectrometer

  5. Validation of the model of Critical Heat Flux COBRA-TF compared experiments of Post-Dryout performed by the Royal Institute of Technology (KTH); Validacion del Modelo de Critical Heat Flux de COBRA-TF frente a los Experimentos de Post-Dryout realizados por el Royal Institute of Technology (KTH)

    Energy Technology Data Exchange (ETDEWEB)

    Abarca, A.; Miro, R.; Barrachina, T.; Verdu, G.

    2014-07-01

    In this work is a validation of the results obtained with different existing correlations for predicting the value and location of the CTF code CHF, using them for experiments of Post-Dryout conducted by the Royal Institute of Technology (KTH) in Stockholm, Sweden. (Author)

  6. Magnetospheric Multiscale Instrument Suite Operations and Data System

    Science.gov (United States)

    Baker, D. N.; Riesberg, L.; Pankratz, C. K.; Panneton, R. S.; Giles, B. L.; Wilder, F. D.; Ergun, R. E.

    2015-01-01

    The four Magnetospheric Multiscale (MMS) spacecraft will collect a combined volume of approximately 100 gigabits per day of particle and field data. On average, only 4 gigabits of that volume can be transmitted to the ground. To maximize the scientific value of each transmitted data segment, MMS has developed the Science Operations Center (SOC) to manage science operations, instrument operations, and selection, downlink, distribution, and archiving of MMS science data sets. The SOC is managed by the Laboratory for Atmospheric and Space Physics (LASP) in Boulder, Colorado and serves as the primary point of contact for community participation in the mission. MMS instrument teams conduct their operations through the SOC, and utilize the SOC's Science Data Center (SOC) for data management and distribution. The SOC provides a single mission data archive for the housekeeping and science data, calibration data, ephemerides, attitude and other ancillary data needed to support the scientific use and interpretation. All levels of data products will reside at and be publicly disseminated from the SDC. Documentation and metadata describing data products, algorithms, instrument calibrations, validation, and data quality will be provided. Arguably, the most important innovation developed by the SOC is the MMS burst data management and selection system. With nested automation and 'Scientist-in-the-Loop' (SITL) processes, these systems are designed to maximize the value of the burst data by prioritizing the data segments selected for transmission to the ground. This paper describes the MMS science operations approach, processes and data systems, including the burst system and the SITL concept.

  7. 46 CFR 160.171-17 - Approval testing for adult size immersion suit.

    Science.gov (United States)

    2010-10-01

    ... if the oversize adult suit is of the same design as the adult suit except for extra material to... from the pool onto the liferaft using only the hands placed on top of the liferaft as an aid and... water, without the use of any auxiliary means of buoyancy, takes a deep breath, assumes a face-down...

  8. Establishing of reference values for heat strain and ergonomics of light weight explosive ordnance disposal suits

    NARCIS (Netherlands)

    Kistemaker, J.A.

    2008-01-01

    Light weight explosive ordnance disposal suits are being used by the deminers from the Dutch Defence Organisation. In the last organised call for tender for light weight explosive ordnance disposal suits for the Dutch Defence Organisation no suitable reference values for ergonomics and heat strain

  9. A suite of models to support the quantitative assessment of spread in pest risk analysis

    NARCIS (Netherlands)

    Robinet, C.; Kehlenbeck, H.; Werf, van der W.

    2012-01-01

    In the frame of the EU project PRATIQUE (KBBE-2007-212459 Enhancements of pest risk analysis techniques) a suite of models was developed to support the quantitative assessment of spread in pest risk analysis. This dataset contains the model codes (R language) for the four models in the suite. Three

  10. Statistical Evaluation of Causal Factors Associated with Astronaut Shoulder Injury in Space Suits.

    Science.gov (United States)

    Anderson, Allison P; Newman, Dava J; Welsch, Roy E

    2015-07-01

    Shoulder injuries due to working inside the space suit are some of the most serious and debilitating injuries astronauts encounter. Space suit injuries occur primarily in the Neutral Buoyancy Laboratory (NBL) underwater training facility due to accumulated musculoskeletal stress. We quantitatively explored the underlying causal mechanisms of injury. Logistic regression was used to identify relevant space suit components, training environment variables, and anthropometric dimensions related to an increased propensity for space-suited injury. Two groups of subjects were analyzed: those whose reported shoulder incident is attributable to the NBL or working in the space suit, and those whose shoulder incidence began in active duty, meaning working in the suit could be a contributing factor. For both groups, percent of training performed in the space suit planar hard upper torso (HUT) was the most important predictor variable for injury. Frequency of training and recovery between training were also significant metrics. The most relevant anthropometric dimensions were bideltoid breadth, expanded chest depth, and shoulder circumference. Finally, record of previous injury was found to be a relevant predictor for subsequent injury. The first statistical model correctly identifies 39% of injured subjects, while the second model correctly identifies 68% of injured subjects. A review of the literature suggests this is the first work to quantitatively evaluate the hypothesized causal mechanisms of all space-suited shoulder injuries. Although limited in predictive capability, each of the identified variables can be monitored and modified operationally to reduce future impacts on an astronaut's health.

  11. Evaluation of the Operator Protection Factors Offered by Positive Pressure Air Suits against Airborne Microbiological Challenge

    Directory of Open Access Journals (Sweden)

    Jackie A. Steward

    2012-08-01

    Full Text Available Laboratories throughout the world that perform work with Risk Group 4 Pathogens generally adopt one of two approaches within BSL-4 environments: either the use of positive pressure air-fed suits or using Class III microbiological safety cabinets and isolators for animal work. Within the UK at present, all laboratories working with Risk Group 4 agents adopt the use of Class III microbiological safety cabinet lines and isolators. Operator protection factors for the use of microbiological safety cabinets and isolators are available however; there is limited published data on the operator protection factors afforded by the use of positive pressure suits. This study evaluated the operator protection factors provided by positive pressure air suits against a realistic airborne microbiological challenge. The suits were tested, both intact and with their integrity compromised, on an animated mannequin within a stainless steel exposure chamber. The suits gave operator protection in all tests with an intact suit and with a cut in the leg. When compromised by a cut in the glove, a very small ingress of the challenge was seen as far as the wrist. This is likely to be due to the low airflow in the gloves of the suit. In all cases no microbiological penetration of the respiratory tract was observed. These data provide evidence on which to base safety protocols for use of positive pressure suits within high containment laboratories.

  12. Towards a miniaturized photon counting laser altimeter and stereoscopic camera instrument suite for microsatellites

    NARCIS (Netherlands)

    Moon, S.G.; Hannemann, S.; Collon, M.; Wielinga, K.; Kroesbergen, E.; Harris, J.; Gill, E.K.A.; Maessen, D.C.

    2009-01-01

    In the following we review the optimization for microsatellite deployment of a highly integrated payload suite comprising a high resolution camera, an additional camera for stereoscopic imaging, and a single photon counting laser altimeter. This payload suite, the `Stereo Imaging Laser Altimeter'

  13. Surgical Space Suits Increase Particle and Microbiological Emission Rates in a Simulated Surgical Environment.

    Science.gov (United States)

    Vijaysegaran, Praveen; Knibbs, Luke D; Morawska, Lidia; Crawford, Ross W

    2017-12-14

    The role of space suits in the prevention of orthopedic prosthetic joint infection remains unclear. Recent evidence suggests that space suits may in fact contribute to increased infection rates, with bioaerosol emissions from space suits identified as a potential cause. This study aimed to compare the particle and microbiological emission rates (PER and MER) of space suits and standard surgical clothing. A comparison of emission rates between space suits and standard surgical clothing was performed in a simulated surgical environment during 5 separate experiments. Particle counts were analyzed with 2 separate particle counters capable of detecting particles between 0.1 and 20 μm. An Andersen impactor was used to sample bacteria, with culture counts performed at 24 and 48 hours. Four experiments consistently showed statistically significant increases in both PER and MER when space suits are used compared with standard surgical clothing. One experiment showed inconsistent results, with a trend toward increases in both PER and MER when space suits are used compared with standard surgical clothing. Space suits cause increased PER and MER compared with standard surgical clothing. This finding provides mechanistic evidence to support the increased prosthetic joint infection rates observed in clinical studies. Copyright © 2017 Elsevier Inc. All rights reserved.

  14. Nurses in the C-suite: leadership beyond chief nurse.

    Science.gov (United States)

    Vandriel, Mary Kay; Bellack, Janis P; O'neil, Edward

    2012-01-01

    The US health care system is reaching a critical point. Consistent cost increases coupled with a struggling economy has illuminated the burden of more than $650 billion annually in health care expenditures. The ability to afford health care is a growing concern for individuals, businesses, and state and federal governments. In addition to costs, variability in quality, and utilization belie any claims of a rational and consistent system of care. Transformational change will require leaders to shape our future health care institutions. Nursing has historically not been considered as a leadership source for change of this magnitude. However, due to the sheer size of nursing, core skills, and competencies, nurses could be a viable resource. Competencies needed for nurse, health care, and physician executives were compared using the HealthCare Leadership Alliance data, which created a body of knowledge that identifies competencies in 5 domains. Findings demonstrate that nurses, health care executives, and physicians possess more than 80% of the competencies reviewed. To successfully take on the role of leading institutional response to the dramatically changing health care environment, nurses must not only have the requisite leadership skills and experience, they must also have an expectation of themselves to lead at this level.

  15. Association rule interestingness: measure and statistical validation

    OpenAIRE

    Lallich, Stéphane; Teytaud, Olivier; Prudhomme, Elie

    2006-01-01

    The search for interesting Boolean association rules is an important topic in knowledge discovery in databases. The set of admissible rules for the selected support and condence thresholds can easily be extracted by algorithms based on support and condence, such as Apriori. However, they may produce a large number of rules, many of them are uninteresting. One has to resolve a two-tier problem: choosing the measures best suited to the problem at hand, then validating the interesting rules agai...

  16. Space Suit Performance: Methods for Changing the Quality of Quantitative Data

    Science.gov (United States)

    Cowley, Matthew; Benson, Elizabeth; Rajulu, Sudhakar

    2014-01-01

    NASA is currently designing a new space suit capable of working in deep space and on Mars. Designing a suit is very difficult and often requires trade-offs between performance, cost, mass, and system complexity. To verify that new suits will enable astronauts to perform to their maximum capacity, prototype suits must be built and tested with human subjects. However, engineers and flight surgeons often have difficulty understanding and applying traditional representations of human data without training. To overcome these challenges, NASA is developing modern simulation and analysis techniques that focus on 3D visualization. Early understanding of actual performance early on in the design cycle is extremely advantageous to increase performance capabilities, reduce the risk of injury, and reduce costs. The primary objective of this project was to test modern simulation and analysis techniques for evaluating the performance of a human operating in extra-vehicular space suits.

  17. The antigravity suit in neurosurgery. Cardiovascular responses in seated neurosurgical patients.

    Science.gov (United States)

    Brodrick, P M; Ingram, G S

    1988-09-01

    The haemodynamic responses associated with inflation of the antigravity suit (G suit, aviation type) to 8.0 kPa were studied in a series of 40 patients who underwent neurosurgical operations in the sitting position. The study showed statistically significant increases in systolic arterial pressure (p less than 0.005) and mean central venous pressure (p less than 0.001) with inflation of the suit. The systolic arterial and mean central venous pressures remained significantly elevated immediately before deflation of the suit at the end of the operation (p less than 0.001 and p less than 0.005 respectively). The addition of 0.8-1.0 kPa positive end expiratory pressure during suit inflation was also investigated. A further increase in central venous pressure occurred but this did not achieve statistical significance.

  18. Integrated Suit Test 1 - A Study to Evaluate Effects of Suit Weight, Pressure, and Kinematics on Human Performance during Lunar Ambulation

    Science.gov (United States)

    Gernhardt, Michael L.; Norcross, Jason; Vos, Jessica R.

    2008-01-01

    In an effort to design the next generation Lunar suit, NASA has initiated a series of tests aimed at understanding the human physiological and biomechanical affects of space suits under a variety of conditions. The first of these tests was the EVA Walkback Test (ICES 2007-01-3133). NASA-JSC assembled a multi-disciplinary team to conduct the second test of the series, titled Integrated Suit Test 1 (IST-1), from March 6 through July 24, 2007. Similar to the Walkback Test, this study was performed with the Mark III (MKIII) EVA Technology Demonstrator suit, a treadmill, and the Partial Gravity Simulator in the Space Vehicle Mock-Up Facility at Johnson Space Center. The data collected for IST-1 included metabolic rates, ground reaction forces, biomechanics, and subjective workload and controllability feedback on both suited and unsuited (shirt-sleeve) astronaut subjects. For IST-1 the center of gravity was controlled to a nearly perfect position while the weight, pressure and biomechanics (waist locked vs. unlocked) were varied individually to evaluate the effects of each on the ability to perform level (0 degree incline) ambulation in simulated Lunar gravity. The detailed test methodology and preliminary key findings of IST-1 are summarized in this report.

  19. The Apollo Number: space suits, self-support, and the walk-run transition.

    Directory of Open Access Journals (Sweden)

    Christopher E Carr

    Full Text Available BACKGROUND: How space suits affect the preferred walk-run transition is an open question with relevance to human biomechanics and planetary extravehicular activity. Walking and running energetics differ; in reduced gravity (<0.5 g, running, unlike on Earth, uses less energy per distance than walking. METHODOLOGY/PRINCIPAL FINDINGS: The walk-run transition (denoted * correlates with the Froude Number (Fr = v(2/gL, velocity v, gravitational acceleration g, leg length L. Human unsuited Fr* is relatively constant (approximately 0.5 with gravity but increases substantially with decreasing gravity below approximately 0.4 g, rising to 0.9 in 1/6 g; space suits appear to lower Fr*. Because of pressure forces, space suits partially (1 g or completely (lunar-g support their own weight. We define the Apollo Number (Ap = Fr/M as an expected invariant of locomotion under manipulations of M, the ratio of human-supported to total transported mass. We hypothesize that for lunar suited conditions Ap* but not Fr* will be near 0.9, because the Apollo Number captures the effect of space suit self-support. We used the Apollo Lunar Surface Journal and other sources to identify 38 gait events during lunar exploration for which we could determine gait type (walk/lope/run and calculate Ap. We estimated the binary transition between walk/lope (0 and run (1, yielding Fr* (0.36+/-0.11, mean+/-95% CI and Ap* (0.68+/-0.20. CONCLUSIONS/SIGNIFICANCE: The Apollo Number explains 60% of the difference between suited and unsuited Fr*, appears to capture in large part the effects of space suits on the walk-run transition, and provides several testable predictions for space suit locomotion and, of increasing relevance here on Earth, exoskeleton locomotion. The knowledge of how space suits affect gait transitions can be used to optimize space suits for use on the Moon and Mars.

  20. Validation of the peroneal nerve test to diagnose critical illness polyneuropathy and myopathy in the intensive care unit: the multicentre Italian CRIMYNE-2 diagnostic accuracy study [v2; ref status: indexed, http://f1000r.es/3qr

    Directory of Open Access Journals (Sweden)

    Nicola Latronico

    2014-06-01

    Full Text Available Objectives: To evaluate the accuracy of the peroneal nerve test (PENT in the diagnosis of critical illness polyneuropathy (CIP and myopathy (CIM in the intensive care unit (ICU. We hypothesised that abnormal reduction of peroneal compound muscle action potential (CMAP amplitude predicts CIP/CIM diagnosed using a complete nerve conduction study and electromyography (NCS-EMG as a reference diagnostic standard. Design: prospective observational study. Setting: Nine Italian ICUs. Patients: One-hundred and twenty-one adult (≥18 years neurologic (106 and non-neurologic (15 critically ill patients with an ICU stay of at least 3 days. Interventions: None. Measurements and main results: Patients underwent PENT and NCS-EMG testing on the same day conducted by two independent clinicians who were blind to the results of the other test. Cases were considered as true negative if both NCS-EMG and PENT measurements were normal. Cases were considered as true positive if the PENT result was abnormal and NCS-EMG showed symmetric abnormal findings, independently from the specific diagnosis by NCS-EMG (CIP, CIM, or combined CIP and CIM. All data were centrally reviewed and diagnoses were evaluated for consistency with predefined electrophysiological diagnostic criteria for CIP/CIM. During the study period, 342 patients were evaluated, 124 (36.3% were enrolled and 121 individuals with no protocol violation were studied. Sensitivity and specificity of PENT were 100% (95% CI 96.1-100.0 and 85.2% (95% CI 66.3-95.8. Of 23 patients with normal results, all presented normal values on both tests with no false negative results. Of 97 patients with abnormal results, 93 had abnormal values on both tests (true positive, whereas four with abnormal findings with PENT had only single peroneal nerve neuropathy at complete NCS-EMG (false positive. Conclusions: PENT has 100% sensitivity and high specificity, and can be used to diagnose CIP/CIM in the ICU.

  1. Validation of the peroneal nerve test to diagnose critical illness polyneuropathy and myopathy in the intensive care unit: the multicentre Italian CRIMYNE-2 diagnostic accuracy study [v3; ref status: indexed, http://f1000r.es/3zk

    Directory of Open Access Journals (Sweden)

    Nicola Latronico

    2014-07-01

    Full Text Available Objectives: To evaluate the accuracy of the peroneal nerve test (PENT in the diagnosis of critical illness polyneuropathy (CIP and myopathy (CIM in the intensive care unit (ICU. We hypothesised that abnormal reduction of peroneal compound muscle action potential (CMAP amplitude predicts CIP/CIM diagnosed using a complete nerve conduction study and electromyography (NCS-EMG as a reference diagnostic standard. Design: prospective observational study. Setting: Nine Italian ICUs. Patients: One-hundred and twenty-one adult (≥18 years neurologic (106 and non-neurologic (15 critically ill patients with an ICU stay of at least 3 days. Interventions: None. Measurements and main results: Patients underwent PENT and NCS-EMG testing on the same day conducted by two independent clinicians who were blind to the results of the other test. Cases were considered as true negative if both NCS-EMG and PENT measurements were normal. Cases were considered as true positive if the PENT result was abnormal and NCS-EMG showed symmetric abnormal findings, independently from the specific diagnosis by NCS-EMG (CIP, CIM, or combined CIP and CIM. All data were centrally reviewed and diagnoses were evaluated for consistency with predefined electrophysiological diagnostic criteria for CIP/CIM. During the study period, 342 patients were evaluated, 124 (36.3% were enrolled and 121 individuals with no protocol violation were studied. Sensitivity and specificity of PENT were 100% (95% CI 96.1-100.0 and 85.2% (95% CI 66.3-95.8. Of 23 patients with normal results, all presented normal values on both tests with no false negative results. Of 97 patients with abnormal results, 93 had abnormal values on both tests (true positive, whereas four with abnormal findings with PENT had only single peroneal nerve neuropathy at complete NCS-EMG (false positive. Conclusions: PENT has 100% sensitivity and high specificity, and can be used as a screening test to diagnose CIP/CIM in the ICU.

  2. First-order feasibility analysis of a space suit radiator concept based on estimation of water mass sublimation using Apollo mission data

    Science.gov (United States)

    Metts, Jonathan G.; Klaus, David M.

    2012-01-01

    Thermal control of a space suit during extravehicular activity (EVA) is typically accomplished by sublimating water to provide system cooling. Spacecraft, on the other hand, primarily rely on radiators to dissipate heat. Integrating a radiator into a space suit has been proposed as an alternative design that does not require mass consumption for heat transfer. While providing cooling without water loss offers potential benefits for EVA application, it is not currently practical to rely on a directional, fixed-emissivity radiator to maintain thermal equilibrium of a spacesuit where the radiator orientation, environmental temperature, and crew member metabolic heat load fluctuate unpredictably. One approach that might make this feasible, however, is the use of electrochromic devices that are capable of infrared emissivity modulation and can be actively controlled across the entire suit surface to regulate net heat flux for the system. Integrating these devices onto the irregular, compliant space suit material requires that they be fabricated on a flexible substrate, such as Kapton film. An initial assessment of whether or not this candidate technology presents a feasible design option was conducted by first characterizing the mass of water loss from sublimation that could theoretically be saved if an electrochromic suit radiator was employed for thermal control. This is particularly important for lunar surface exploration, where the expense of transporting water from Earth is excessive, but the technology is potentially beneficial for other space missions as well. In order to define a baseline for this analysis by comparison to actual data, historical documents from the Apollo missions were mined for comprehensive, detailed metabolic data from each lunar surface outing, and related data from NASA's more recent "Advanced Lunar Walkback" tests were also analyzed. This metabolic database was then used to validate estimates for sublimator water consumption during surface

  3. Characterization of dynamic thermal control schemes and heat transfer pathways for incorporating variable emissivity electrochromic materials into a space suit heat rejection system

    Science.gov (United States)

    Massina, Christopher James

    radiator architecture is considered to be at a technology readiness level of 3/4, indicating that analytical proof-of-concept and component level validation in a laboratory environment have been completed. While this is not a numeric increase from previous investigations, these contributions are a significant iteration within those levels. These results improve the understanding of the capabilities provided by the full suit, variable emissivity architecture.

  4. Critical Pedagogy for Critical Mathematics Education

    Science.gov (United States)

    Tutak, Fatma Aslan; Bondy, Elizabeth; Adams, Thomasenia L.

    2011-01-01

    This article provides a brief introduction to critical pedagogy and further discussion on critical mathematics education. Critical mathematics education enables students to read the world with mathematics. Three emerging domains of mathematics education related to critical mathematics education are discussed in this manuscript: ethnomathematics,…

  5. Ideological systems and its validation: a neutrosophic approach

    Directory of Open Access Journals (Sweden)

    Josué Nescolarde-Selva

    2015-09-01

    Full Text Available Ideologies face two critical problems in the reality, the problem of commitment and the problem of validation. Commitment and validation are two separate phenomena, in spite of the near universal myth that the human is committed because his beliefs are valid. Ideologies not only seem external and valid but also worth whatever discomforts believing entails. In this paper the authors develop a theory of social commitment and social validation using concepts of validation of neutrosophic logic.

  6. SANSMIC Validation.

    Energy Technology Data Exchange (ETDEWEB)

    Weber, Paula D.; Rudeen, David Keith; Lord, David L.

    2014-08-01

    SANSMIC is solution mining software that was developed and utilized by SNL in its role as geotechnical advisor to the US DOE SPR for planning purposes. Three SANSMIC leach modes - withdrawal, direct, and reverse leach - have been revalidated with multiple test cases for each mode. The withdrawal mode was validated using high quality data from recent leach activity while the direct and reverse modes utilized data from historical cavern completion reports. Withdrawal results compared very well with observed data, including the location and size of shelves due to string breaks with relative leached volume differences ranging from 6 - 10% and relative radius differences from 1.5 - 3%. Profile comparisons for the direct mode were very good with relative leached volume differences ranging from 6 - 12% and relative radius differences from 5 - 7%. First, second, and third reverse configurations were simulated in order to validate SANSMIC over a range of relative hanging string and OBI locations. The first-reverse was simulated reasonably well with relative leached volume differences ranging from 1 - 9% and relative radius differences from 5 - 12%. The second-reverse mode showed the largest discrepancies in leach profile. Leached volume differences ranged from 8 - 12% and relative radius differences from 1 - 10%. In the third-reverse, relative leached volume differences ranged from 10 - 13% and relative radius differences were %7E4 %. Comparisons to historical reports were quite good, indicating that SANSMIC is essentially the same as documented and validated in the early 1980's.

  7. Assessing model-based reasoning using evidence-centered design a suite of research-based design patterns

    CERN Document Server

    Mislevy, Robert J; Riconscente, Michelle; Wise Rutstein, Daisy; Ziker, Cindy

    2017-01-01

    This Springer Brief provides theory, practical guidance, and support tools to help designers create complex, valid assessment tasks for hard-to-measure, yet crucial, science education standards. Understanding, exploring, and interacting with the world through models characterizes science in all its branches and at all levels of education. Model-based reasoning is central to science education and thus science assessment. Current interest in developing and using models has increased with the release of the Next Generation Science Standards, which identified this as one of the eight practices of science and engineering. However, the interactive, complex, and often technology-based tasks that are needed to assess model-based reasoning in its fullest forms are difficult to develop. Building on research in assessment, science education, and learning science, this Brief describes a suite of design patterns that can help assessment designers, researchers, and teachers create tasks for assessing aspects of model-based...

  8. A Critical Analysis of Siobhan Davies's "White Man Sleeps," 1998

    Science.gov (United States)

    Gregory, Katie

    2005-01-01

    This critical analysis focuses on the movement vocabulary and interaction of dancers in selected sections of the filmed version of "White Man Sleeps" (1988) by Siobhan Davies. The choreography is divided into five distinct parts, in accordance with divisions in the musical accompaniment from which the piece takes its name, a suite of…

  9. Technical Note: DIRART – A software suite for deformable image registration and adaptive radiotherapy research

    Science.gov (United States)

    Yang, Deshan; Brame, Scott; El Naqa, Issam; Aditya, Apte; Wu, Yu; Murty Goddu, S.; Mutic, Sasa; Deasy, Joseph O.; Low, Daniel A.

    2011-01-01

    Purpose: Recent years have witnessed tremendous progress in image guide radiotherapy technology and a growing interest in the possibilities for adapting treatment planning and delivery over the course of treatment. One obstacle faced by the research community has been the lack of a comprehensive open-source software toolkit dedicated for adaptive radiotherapy (ART). To address this need, the authors have developed a software suite called the Deformable Image Registration and Adaptive Radiotherapy Toolkit (DIRART). Methods:DIRART is an open-source toolkit developed in MATLAB. It is designed in an object-oriented style with focus on user-friendliness, features, and flexibility. It contains four classes of DIR algorithms, including the newer inverse consistency algorithms to provide consistent displacement vector field in both directions. It also contains common ART functions, an integrated graphical user interface, a variety of visualization and image-processing features, dose metric analysis functions, and interface routines. These interface routines make DIRART a powerful complement to the Computational Environment for Radiotherapy Research (CERR) and popular image-processing toolkits such as ITK. Results: DIRART provides a set of image processing∕registration algorithms and postprocessing functions to facilitate the development and testing of DIR algorithms. It also offers a good amount of options for DIR results visualization, evaluation, and validation. Conclusions: By exchanging data with treatment planning systems via DICOM-RT files and CERR, and by bringing image registration algorithms closer to radiotherapy applications, DIRART is potentially a convenient and flexible platform that may facilitate ART and DIR research. PMID:21361176

  10. Tackling Verification and Validation for Prognostics

    Data.gov (United States)

    National Aeronautics and Space Administration — Verification and validation (V&V) has been identified as a critical phase in fielding systems with Integrated Systems Health Management (ISHM) solutions to...

  11. The Situational Awareness Sensor Suite for the ISS (SASSI): A Mission Concept to Investigate ISS Charging and Wake Effects

    Science.gov (United States)

    Krause, L. Habash; Minow, J. I.; Coffey, V. N.; Gilchrist, Brian E.; Hoegy, W. R.

    2014-01-01

    electrostatic (i.e. particles) and electromagnetic modes. SASSI will advance the understanding of plasma-boundary interaction phenomena, demonstrate a suite a sensors acting in concert to provide effective SSA, and validate and/or calibrate existing ISS space environment instruments and models.

  12. COINS: An innovative informatics and neuroimaging tool suite built for large heterogeneous datasets

    Directory of Open Access Journals (Sweden)

    Adam eScott

    2011-12-01

    Full Text Available The availability of well-characterized neuroimaging data with large numbers of subjects, especially for clinical populations, is critical to advancing our understanding of the healthy and diseased brain. Such data enables questions to be answered in a much more generalizable manner and also has the potential to yield solutions derived from novel methods that were conceived after the original studies' implementation. Though there is currently growing interest in data sharing, the neuroimaging community has been struggling for years with how to best encourage sharing data across brain imaging studies. With the advent of studies that are much more consistent across sites (e.g., resting fMRI, diffusion tensor imaging, and structural imaging the potential of pooling data across studies continues to gain momentum.At the Mind Research Network (MRN, we have developed the COllaborative Informatics and Neuroimaging Suite (COINS; http://coins.mrn.org to provide researchers with an information system based on an open-source model that includes web-based tools to manage studies, subjects, imaging, clinical data and other assessments. The system currently hosts data from 9 institutions, over 300 studies, over 14,000 subjects, and over 19,000 MRI, MEG, and EEG scan sessions in addition to more than 180,000 clinical assessments. In this paper we provide a description of COINS with comparison to a valuable and popular system known as XNAT. Although there are many similarities between COINS and other electronic data management systems, the differences that may concern researchers in the context of multi-site, multi-organizational data-sharing environments with intuitive ease of use and PHI security are emphasized as important attributes.

  13. Studies on validation possibilities for computational codes for criticality and burnup calculations of boiling water reactor fuel; Untersuchungen zu Validierungsmoeglichkeiten von Rechencodes fuer Kritikalitaets- und Abbrandrechnungen von Siedewasserreaktor-Brennstoff

    Energy Technology Data Exchange (ETDEWEB)

    Behler, Matthais; Hannstein, Volker; Kilger, Robert; Sommer, Fabian; Stuke, Maik

    2017-06-15

    The Application of the method of Burn-up Credit on Boiling Water Reactor fuel is much more complex than in the case of Pressurized Water Reactors due to the increased heterogeneity and complexity of the fuel assemblies. Strongly varying enrichments, complex fuel assembly geometries, partial length fuel rods, and strong axial variations of the moderator density make the verification of conservative irradiation conditions difficult. In this Report, it was investigated whether it is possible to take into account the burn-up in criticality analyses for systems with irradiated Boiling Water Reactor fuel on the basis of freely available experimental data and by additionally applying stochastic methods. In order to achieve this goal, existing methods for stochastic analysis were adapted and further developed in order to being applicable to the specific conditions needed in Boiling Water Reactor analysis. The aim was to gain first insight whether a workable scheme for using burn-up credit in Boiling Water Reactor applications can be derived. Due to the fact that the different relevant quantities, like e.g. moderator density and the axial power profile, are strongly correlated, the GRS-tool SUnCISTT for Monte-Carlo uncertainty quantification was used in the analysis. This tool was coupled to a simplified, consistent model for the irradiation conditions. In contrast to conventional methods, this approach allows to simultaneously analyze all involved effects.

  14. Heat Exchanger/Humidifier Trade Study and Conceptual Design for the Constellation Space Suit Portable Life Support System Ventilation Subsystem

    Science.gov (United States)

    Paul, Heather L.; Sompayrac, Robert; Conger, Bruce; Chamberlain, Mateo

    2009-01-01

    As development of the Constellation Space Suit Element progresses, designing the most effective and efficient life support systems is critical. The baseline schematic analysis for the Portable Life Support System (PLSS) indicates that the ventilation loop will need some method of heat exchange and humidification prior to entering the helmet. A trade study was initiated to identify the challenges associated with conditioning the spacesuit breathing gas stream for temperature and water vapor control, to survey technological literature and resources on heat exchanger and humidifiers to provide solutions to the problems of conditioning the spacesuit breathing gas stream, and to propose potential candidate technologies to perform the heat exchanger and humidifier functions. This paper summarizes the results of this trade study and also describes the conceptual designs that NASA developed to address these issues.

  15. Argon used as dry suit insulation gas for cold-water diving

    Science.gov (United States)

    2013-01-01

    Background Cold-water diving requires good thermal insulation because hypothermia is a serious risk. Water conducts heat more efficiently compared to air. To stay warm during a dive, the choice of thermal protection should be based on physical activity, the temperature of the water, and the duration of exposure. A dry suit, a diving suit filled with gas, is the most common diving suit in cold water. Air is the traditional dry suit inflation gas, whereas the thermal conductivity of argon is approximately 32% lower compared to that of air. This study evaluates the benefits of argon, compared to air, as a thermal insulation gas for a dry suit during a 1-h cold-water dive by divers of the Royal Netherlands Navy. Methods Seven male Special Forces divers made (in total) 19 dives in a diving basin with water at 13°C at a depth of 3 m for 1 h in upright position. A rubber dry suit and woollen undergarment were used with either argon (n = 13) or air (n = 6) (blinded to the divers) as suit inflation gas. Core temperature was measured with a radio pill during the dive. Before, halfway, and after the dive, subjective thermal comfort was recorded using a thermal comfort score. Results No diver had to abort the test due to cold. No differences in core temperature and thermal comfort score were found between the two groups. Core temperature remained unchanged during the dives. Thermal comfort score showed a significant decrease in both groups after a 60-min dive compared to baseline. Conclusions In these tests the combination of the dry suit and undergarment was sufficient to maintain core temperature and thermal comfort for a dive of 1 h in water at 13°C. The use of argon as a suit inflation gas had no added value for thermal insulation compared to air for these dives. PMID:24438580

  16. Characterization of the Radiation Shielding Properties of US andRussian EVA Suits

    Energy Technology Data Exchange (ETDEWEB)

    Benton, E.R.; Benton, E.V.; Frank, A.L.

    2001-10-26

    Reported herein are results from the Eril Research, Inc.(ERI) participationin the NASA Johnson Space Center sponsored studycharacterizing the radiation shielding properties of the two types ofspace suit that astronauts are wearing during the EVA on-orbit assemblyof the International Space Station (ISS). Measurements using passivedetectors were carried out to assess the shielding properties of the USEMU Suit and the Russian Orlan-M suit during irradiations of the suitsand a tissue equivalent phantom to monoenergetic proton and electronbeams at the Loma Linda University Medical Center (LLUMC). Duringirradiations of 6 MeV electrons and 60 MeV protons, absorbed dose as afunction of depth was measured using TLDs exposed behind swatches of thetwo suit materials and inside the two EVA helmets. Considerable reductionin electron dosewas measured behind all suit materials in exposures to 6MeV electrons. Slowing of the proton beam in the suit materials led to anincrease in dose measured in exposures to 60 MeV protons. During 232 MeVproton irradiations, measurements were made with TLDs and CR-39 PNTDs atfive organ locations inside a tissue equivalent phantom, exposed bothwith and without the two EVA suits. The EVA helmets produce a 13 to 27percent reduction in total dose and a 0 to 25 percent reduction in doseequivalent when compared to measurements made in the phantom head alone.Differences in dose and dose equivalent between the suit and non-suitirradiations forthe lower portions of the two EVA suits tended to besmaller. Proton-induced target fragmentation was found to be asignificant source of increased dose equivalent, especially within thetwo EVA helmets, and average quality factor inside the EMU and Orlan-Mhelmets was 2 to 14 percent greater than that measured in the barephantom head.

  17. Argon used as dry suit insulation gas for cold-water diving.

    Science.gov (United States)

    Vrijdag, Xavier Ce; van Ooij, Pieter-Jan Am; van Hulst, Robert A

    2013-06-03

    Cold-water diving requires good thermal insulation because hypothermia is a serious risk. Water conducts heat more efficiently compared to air. To stay warm during a dive, the choice of thermal protection should be based on physical activity, the temperature of the water, and the duration of exposure. A dry suit, a diving suit filled with gas, is the most common diving suit in cold water. Air is the traditional dry suit inflation gas, whereas the thermal conductivity of argon is approximately 32% lower compared to that of air. This study evaluates the benefits of argon, compared to air, as a thermal insulation gas for a dry suit during a 1-h cold-water dive by divers of the Royal Netherlands Navy. Seven male Special Forces divers made (in total) 19 dives in a diving basin with water at 13 degrees C at a depth of 3 m for 1 h in upright position. A rubber dry suit and woollen undergarment were used with either argon (n = 13) or air (n = 6) (blinded to the divers) as suit inflation gas. Core temperature was measured with a radio pill during the dive. Before, halfway, and after the dive, subjective thermal comfort was recorded using a thermal comfort score. No diver had to abort the test due to cold. No differences in core temperature and thermal comfort score were found between the two groups. Core temperature remained unchanged during the dives. Thermal comfort score showed a significant decrease in both groups after a 60-min dive compared to baseline. In these tests the combination of the dry suit and undergarment was sufficient to maintain core temperature and thermal comfort for a dive of 1h in water at 13 degrees C. The use of argon as a suit inflation gas had no added value for thermal insulation compared to air for these dives.

  18. Abrasion Testing of Candidate Outer Layer Fabrics for Lunar EVA Space Suits

    Science.gov (United States)

    Mitchell, Kathryn C.

    2010-01-01

    During the Apollo program, the space suit outer layer fabrics were badly abraded after just a few Extravehicular Activities (EVAs). For example, the Apollo 12 commander reported abrasive wear on the boots, which penetrated the outer layer fabric into the thermal protection layers after less than eight hours of surface operations. Current plans for the Constellation Space Suit Element require the space suits to support hundreds of hours of EVA on the Lunar surface, creating a challenge for space suit designers to utilize materials advances made over the last forty years and improve upon the space suit fabrics used in the Apollo program. A test methodology has been developed by the NASA Johnson Space Center Crew and Thermal Systems Division for establishing comparative abrasion wear characteristics between various candidate space suit outer layer fabrics. The abrasion test method incorporates a large rotary drum tumbler with rocks and loose lunar simulant material to induce abrasion in fabric test cylinder elements, representative of what might occur during long term planetary surface EVAs. Preliminary materials screening activities were conducted to determine the degree of wear on representative space suit outer layer materials and the corresponding dust permeation encountered between subsequent sub -layers of thermal protective materials when exposed to a simulated worst case eight hour EVA. The test method was used to provide a preliminary evaluation of four candidate outer layer fabrics for future planetary surface space suit applications. This Paper provides a review of previous abrasion studies on space suit fabrics, details the methodologies used for abrasion testing in this particular study, and shares the results and conclusions of the testing.

  19. Skin Temperatures During Unaided Egress: Unsuited and While Wearing the NASA Launch and Entry or Advanced Crew Escape Suits

    Science.gov (United States)

    Woodruff, Kristin K.; Lee, Stuart M. C.; Greenisen, Michael C.; Schneider, Suzanne M.

    2000-01-01

    The two flight suits currently worn by crew members during Shuttle launch and landing, the Launch and Entry Suit (LES) and the Advanced Crew Escape Suit (ACES), are designed to protect crew members in the case of emergency. Although the Liquid Cooling Garment (LCG) worn under the flight suits was designed to counteract the heat storage of the suits, the suits may increase thermal stress and limit the astronaut's egress capabilities. The purpose of this study was to assess the thermal loads experienced by crew members during a simulated emergency egress before and after spaceflight. Comparisons of skin temperatures were made between the preflight unsuited and suited conditions. between the pre- and postflight suited conditions, and between the two flight suits.

  20. FusionCharts Beginner's Guide The Official Guide for FusionCharts Suite

    CERN Document Server

    Nadhani, Sanket; Bhattacharya, Shamasis

    2012-01-01

    The book is written as a practical, step-by-step guide to using FusionCharts Suite. The book not only teaches you the fundamentals and implementation of FusionCharts Suite, but also makes you the data visualization guru among your friends and colleagues by teaching how to select the right chart type and usability tips. Filled with examples, code samples and practical tips in a no-nonsense way, the book is a breeze to read.This book is both for beginners and advanced web developers who need to create interactive charts for their web applications. No previous knowledge of FusionCharts Suite is a

  1. CO2 Washout Testing Using Various Inlet Vent Configurations in the Mark-III Space Suit

    Science.gov (United States)

    Korona, F. Adam; Norcross, Jason; Conger, Bruce; Navarro, Moses

    2014-01-01

    Requirements for using a space suit during ground testing include providing adequate carbon dioxide (CO2) washout for the suited subject. Acute CO2 exposure can lead to symptoms including headache, dyspnea, lethargy and eventually unconsciousness or even death. Symptoms depend on several factors including inspired partial pressure of CO2 (ppCO2), duration of exposure, metabolic rate of the subject and physiological differences between subjects. Computational Fluid Dynamic (CFD) analysis has predicted that the configuration of the suit inlet vent has a significant effect on oronasal CO2 concentrations. The main objective of this test was to characterize inspired oronasal ppCO2 for a variety of inlet vent configurations in the Mark-III suit across a range of workload and flow rates. Data and trends observed during testing along with refined CFD models will be used to help design an inlet vent configuration for the Z-2 space suit. The testing methodology used in this test builds upon past CO2 washout testing performed on the Z-1 suit, Rear Entry I-Suit (REI) and the Enhanced Mobility Advanced Crew Escape Suit (EM-ACES). Three subjects performed two test sessions each in the Mark-III suit to allow for comparison between tests. Six different helmet inlet vent configurations were evaluated during each test session. Suit pressure was maintained at 4.3 psid. Suited test subjects walked on a treadmill to generate metabolic workloads of approximately 2000 and 3000 BTU/hr. Supply airflow rates of 6 and 4 actual cubic feet per minute (ACFM) were tested at each workload. Subjects wore an oronasal mask with an open port in front of the mouth and were allowed to breathe freely. Oronasal ppCO2 was monitored real-time via gas analyzers with sampling tubes connected to the oronasal mask. Metabolic rate was calculated from the total oxygen consumption and CO2 production measured by additional gas analyzers at the air outlet from the suit. Real-time metabolic rate measurements were

  2. Metabolic and Subjective Results Review of the Integrated Suit Test Series

    Science.gov (United States)

    Norcross, J.R.; Stroud, L.C.; Klein, J.; Desantis, L.; Gernhardt, M.L.

    2009-01-01

    Crewmembers will perform a variety of exploration and construction activities on the lunar surface. These activities will be performed while inside an extravehicular activity (EVA) spacesuit. In most cases, human performance is compromised while inside an EVA suit as compared to a crewmember s unsuited performance baseline. Subjects completed different EVA type tasks, ranging from ambulation to geology and construction activities, in different lunar analog environments including overhead suspension, underwater and 1-g lunar-like terrain, in both suited and unsuited conditions. In the suited condition, the Mark III (MKIII) EVA technology demonstrator suit was used and suit pressure and suit weight were parameters tested. In the unsuited conditions, weight, mass, center of gravity (CG), terrain type and navigation were the parameters. To the extent possible, one parameter was varied while all others were held constant. Tests were not fully crossed, but rather one parameter was varied while all others were left in the most nominal setting. Oxygen consumption (VO2), modified Cooper-Harper (CH) ratings of operator compensation and ratings of perceived exertion (RPE) were measured for each trial. For each variable, a lower value correlates to more efficient task performance. Due to a low sample size, statistical significance was not attainable. Initial findings indicate that suit weight, CG and the operational environment can have a large impact on human performance during EVA. Systematic, prospective testing series such as those performed to date will enable a better understanding of the crucial interactions of the human and the EVA suit system and their environment. However, work remains to be done to confirm these findings. These data have been collected using only unsuited subjects and one EVA suit prototype that is known to fit poorly on a large demographic of the astronaut population. Key findings need to be retested using an EVA suit prototype better suited to a

  3. Controlatron Neutron Tube Test Suite Software Manual - Operation Manual (V2.2)

    CERN Document Server

    Noel, W P; Hertrich, R J; Martinez, M L; Wallace, D L

    2002-01-01

    The Controlatron Software Suite is a custom built application to perform automated testing of Controlatron neutron tubes. The software package was designed to allowing users to design tests and to run a series of test suites on a tube. The data is output to ASCII files of a pre-defined format for data analysis and viewing with the Controlatron Data Viewer Application. This manual discusses the operation of the Controlatron Test Suite Software and a brief discussion of state machine theory, as state machine is the functional basis of the software.

  4. Adobe Creative Suite 6 Design and Web Premium all-in-one for dummies

    CERN Document Server

    Smith, Jennifer; Gerantabee, Fred

    2012-01-01

    The must-have book on the leading suite of software for graphic and web designers Fully revised and updated this hands-on resource offers a one-stop learning opportunity through eight mini-book dedicated to each product inside Adobe's Design & Web Premium Suite. The mini-books include Adobe Creative Suite Basics, InDesign, Illustrator, Photoshop, Acrobat, Dreamweaver, Flash, Fireworks. The book may contain new image enhancements to After Effects, 64-bit versions of Illustrator and Flash Professional, and a new tool, dubbed Helium, that will enable designers to create content using HTML5 and

  5. The use of antigravity suits in the treatment of idiopathic orthostatic hypotension

    Science.gov (United States)

    Landmark, K.; Kravik, S.

    1980-01-01

    Idiopathic orthostatic hypotension is an uncommon disease characterized by a drop in blood pressure when going from a recumbent to a standing position. Treatment by medication generally produces poor results. Three patients at the Royal Hospital in Oslo were treated with antigravity suits and all were able to maintain adequate blood pressures in the standing position. One patient improved dramatically and was able to take short walks while wearing the suit. The two other patients, however, felt that wearing the suits eventually became uncomfortable. This treatment represents a useful treatment alternative for intractable cases.

  6. 78 FR 32184 - HACCP Systems Validation

    Science.gov (United States)

    2013-05-29

    ... Food Safety and Inspection Service 9 CFR part 417 HACCP Systems Validation AGENCY: Food Safety and... Critical Control Point (HACCP) systems validation. In addition, FSIS is announcing that it will hold a..., which require that federally inspected establishments adopt HACCP systems (61 FR 38806). These...

  7. Empirical data validation for model building

    Science.gov (United States)

    Kazarian, Aram

    2008-03-01

    Optical Proximity Correction (OPC) has become an integral and critical part of process development for advanced technologies with challenging k I requirements. OPC solutions in turn require stable, predictive models to be built that can project the behavior of all structures. These structures must comprehend all geometries that can occur in the layout in order to define the optimal corrections by feature, and thus enable a manufacturing process with acceptable margin. The model is built upon two main component blocks. First, is knowledge of the process conditions which includes the optical parameters (e.g. illumination source, wavelength, lens characteristics, etc) as well as mask definition, resist parameters and process film stack information. Second, is the empirical critical dimension (CD) data collected using this process on specific test features the results of which are used to fit and validate the model and to project resist contours for all allowable feature layouts. The quality of the model therefore is highly dependent on the integrity of the process data collected for this purpose. Since the test pattern suite generally extends to below the resolution limit that the process can support with adequate latitude, the CD measurements collected can often be quite noisy with marginal signal-to-noise ratios. In order for the model to be reliable and a best representation of the process behavior, it is necessary to scrutinize empirical data to ensure that it is not dominated by measurement noise or flyer/outlier points. The primary approach for generating a clean, smooth and dependable empirical data set should be a replicated measurement sampling that can help to statistically reduce measurement noise by averaging. However, it can often be impractical to collect the amount of data needed to ensure a clean data set by this method. An alternate approach is studied in this paper to further smooth the measured data by means of curve fitting to identify remaining

  8. Even at a Board Meeting, Your Immunity to Defamation Suits Is Limited.

    Science.gov (United States)

    Henderson, Donald H.

    1986-01-01

    Common law grants immunity for defamatory statements to administrative bodies such as boards. The limitations under which board participants function in relation to immunity from defamation suits are outlined. Includes discussion of specific court cases. (MD)

  9. Apollo 11 astronaut Buzz Aldrin suits up for Countdown Demonstration Test

    Science.gov (United States)

    1969-01-01

    Apollo 11 Lunar Module Pilot Edwin E. Aldrin Jr. relaxes after suiting up to participate in a space vehicle Countdown Demonstration Test with Astronauts Neil A. Armstrong and Michael Collins. They will be launched on a lunar landing mission.

  10. Suit Simulator (S3) for Partial Gravity EVA Experimentation and Training Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Aurora Flight Sciences, along with MIT consultants Professor Dava Newman and Professor Jeffrey Hoffman, propose to develop an EVA space suit simulator for use in...

  11. Rapid Optical Characterization Suite for in situ Target Analysis of Rock Surfaces Project

    Data.gov (United States)

    National Aeronautics and Space Administration — ROCSTAR is an in situ instrument suite that can accomplish rapid mineral and molecular identification without sample preparation for in situ planetary exploration;...

  12. NPP Visible Infrared Imager-Radiometer Suite (VIIRS) Quasi-Analytical Algorithm (GSM) Global Mapped Data

    Data.gov (United States)

    National Aeronautics and Space Administration — The Visible and Infrared Imager/Radiometer Suite (VIIRS) is a multi-disciplinary instrument that is being flown on the Joint Polar Satellite System (JPSS) series of...

  13. NPP Visible Infrared Imager-Radiometer Suite (VIIRS) Quasi-Analytical Algorithm (GSM) Global Binned Data

    Data.gov (United States)

    National Aeronautics and Space Administration — The Visible and Infrared Imager/Radiometer Suite (VIIRS) is a multi-disciplinary instrument that is being flown on the Joint Polar Satellite System (JPSS) series of...

  14. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Cloud Mask Environmental Data Record (EDR) from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains a high quality Environmental Data Record (EDR) of cloud masks from the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument onboard...

  15. NPP Visible Infrared Imager-Radiometer Suite (VIIRS) Remote-Sensing Reflectance (RRS) Global Mapped Data

    Data.gov (United States)

    National Aeronautics and Space Administration — The Visible and Infrared Imager/Radiometer Suite (VIIRS) is a multi-disciplinary instrument that is being flown on the Joint Polar Satellite System (JPSS) series of...

  16. A Laser-Based Diagnostic Suite for Hypersonic Test Facilities Project

    Data.gov (United States)

    National Aeronautics and Space Administration — In this SBIR effort, Los Gatos Research (LGR) proposes to develop a suite of laser-based diagnostics for the study of reactive and non-reactive hypersonic flows....

  17. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Aerosol Detection Environmental Data Record (EDR) from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains a high quality operational Environmental Data Record (EDR) of suspended matter from the Visible Infrared Imaging Radiometer Suite (VIIRS)...

  18. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Snow Cover Environmental Data Record (EDR) from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains a high quality operational Environmental Data Record (EDR) of snow cover from the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument...

  19. Application of an Automated Synthesis Suite to Parallel Solution-Phase Peptide Synthesis

    National Research Council Canada - National Science Library

    KURODA, Noritaka; HATTORI, Taeko; FUJIOKA, Yoko; CORK, David G; KITADA, Chieko; SUGAWARA, Tohru

    2001-01-01

    An in-house developed automated synthesis suite was used to prepare a library of 72 tetrapeptide derivatives, the starting materials for pharmaceutically attractive pentapeptides, employing a convergent strategy...

  20. NPP Visible Infrared Imager-Radiometer Suite (VIIRS) Chlorophyll (CHL) Global Mapped Data

    Data.gov (United States)

    National Aeronautics and Space Administration — The Visible and Infrared Imager/Radiometer Suite (VIIRS) is a multi-disciplinary instrument that is being flown on the Joint Polar Satellite System (JPSS) series of...

  1. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Smoothed Normalized Difference Vegetation Index (NDVI) from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Visible Infrared Imaging Radiometer Suite (VIIRS) Smoothed Normalized Difference Vegetation Index (NDVI) from NDE is a weekly product derived from the VIIRS...

  2. Stravinsky: Symphony in E flat, Op. 1. Firebird-Suite (1919 version / Jonathan Swain

    Index Scriptorium Estoniae

    Swain, Jonathan

    1994-01-01

    Uuest heliplaadist "Stravinsky: Symphony in E flat, Op. 1. Firebird-Suite (1919 version). Royal Philharmonic Orchestra / Dalia Atlas; Symphony - comparative versions: SNO, Gibson. SRO, Järvi (2/94)(CHAN) CHAN 9236

  3. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Sensor Data Record (SDR) from IDPS

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Sensor Data Records (SDRs), or Level 1b data, from the Visible Infrared Imaging Radiometer Suite (VIIRS) are the calibrated and geolocated radiance and reflectance...

  4. 75 FR 82392 - Proposed Settlement Agreement, Clean Air Act Citizen Suit

    Science.gov (United States)

    2010-12-30

    ... Environmental Defense Fund (collectively ``Environmental Petitioners''), and Respondent, the U.S. Environmental... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Proposed Settlement Agreement, Clean Air Act Citizen Suit AGENCY: Environmental Protection Agency...

  5. What Is Critical in Critical Language Awareness?

    Science.gov (United States)

    Males, Terry

    2000-01-01

    Discusses the question of what is critical in critical language awareness by drawing on Hans Georg Gadamer's development of the dialectic of experience, historically effected consciousness, and the dialectic of question and answer. The openness found to characterize these three events initiates the space of distance by which the critical instance…

  6. The Halpern Critical Thinking Assessment: Towards a Dutch Appraisal of Critical Thinking

    NARCIS (Netherlands)

    de Bie, Hannie; Wilhelm, P.; van der Meij, Hans

    2015-01-01

    Critical thinking is a vital component of 21st century skills. To assess this skill, a valid and reliable instrument is needed. This study focuses on the psychometric properties of the Dutch version of the Halpern Critical Thinking Assessment (HCTA). The HCTA was administered to university students

  7. Revolutionary Design for Astronaut Exploration — Beyond the Bio-Suit System

    Science.gov (United States)

    Newman, Dava J.; Canina, Marita; Trotti, Guillermo L.

    2007-01-01

    The Bio-Suit System is designed to revolutionize human space exploration by providing enhanced astronaut extravehicular activity (EVA) locomotion and performance based on the concepts of a `second skin' capability. The novel Bio-Suit concept provides an overall exploration system realized through symbiotic relationships between a suite of advanced technologies, creative design, human modeling and analysis, and new mission operations techniques. By working at the intersection of engineering, design, life sciences and operations, new emergent capabilities and interrelationships result for applications to space missions, medical rehabilitation, and extreme sports activities. In many respects, the Bio-Suit System mimics Nature (biomimetics). For example, the second skin is capable of augmenting our biological skin by providing mechanical counter-pressure. We have designed and tested prototypes that prove mechanical counter-pressure feasibility. The `epidermis' of our second skin suit is patterned from 3D laser scans that incorporate human skin strain field maps for maximum mobility and natural movements, while requiring minimum energy expenditure for exploration tasks. We provide a technology roadmap for future design, pressure production and technology investments for the Bio-Suit System. Woven into the second skin are active materials to enhance human performance as well as to provide necessary performance metrics (i.e., energy expenditure). Wearable technologies will be embedded throughout the Bio-Suit System to place the explorer in an information-rich environment enabling real-time mission planning, prediction, and visualization. The Bio-Suit System concept augments human capabilities by coupling human and robotic abilities into a hybrid of the two, to the point where the explorer is hardly aware of the boundary between innate human performance and robotic activities.

  8. Specific features of Bazhenov suite sediments in south-eastern Nurolsk sedimentary basin (Tomsk Oblast)

    OpenAIRE

    Nedolivko, Nataliya Mikhailovna; Perevertaylo (Perevertailo), Tatyana Gennadievna; Li Cunyi; Abramova, Raisa Nikolaevna

    2015-01-01

    The specific sediment features in Georgiev (J[3]kmgr), Bazhenov (J3vbg) and Kulomzin (K1bkl) suites, exposed by drilling in the S-E Nurolsk depression (Tomsk Oblast), were defined and described via petrographic, X-ray diffraction and fluorescence-microscopy analysis methods. The classification of agrillites was identified, the structure-texture features, composition, voids and bitumen types and their distribution were determined. It was defined that Bazhenov suite argillites are characteristi...

  9. Descrição do Protocolo PediaSuitTM

    OpenAIRE

    Scheeren,Eduardo Mendonça; Mascarenhas, Luis Paulo Gomes; Chiarello,Claudiana Renata; Costin,Ana Cláudia Martins Szczypior; Oliveira, Leonardo; Neves,Eduardo Borba

    2012-01-01

    INTRODUCTION: PediaSuit ProtocolTM is an intensive therapy with a holistic approach to the treatment of individuals with neurological disorders like cerebral palsy (CP), developmental delays, traumatic brain injuries, autism and other conditions which affect a child's motor and/or cognitive functions. OBJECTIVE: The aim of the present work is to describe the PediaSuit ProtocolTM. METHODS: The authors team remained two months observing the care provided in a clinic with physical therapists tra...

  10. Some problems of selection and evaluation of the Martian suit enclosure concept

    Science.gov (United States)

    Abramov, Isaak; Moiseyev, Nikolay; Stoklitsky, Anatoly

    2005-12-01

    One of the most important tasks for preparation of a future manned mission to Mars is to create a space suit, which ensures efficient and safe operation of the man on the planet surface. The concept of space suit (SS) utilisation on the Mars surface will be determined mainly by the Mars mission scenario. Currently the preference is given to utilisation of robotics with the crew driving a Mars rover vehicle, whereby the suit will be used solely as an additional safety means. However, one cannot exclude the necessity of a durable self-contained stay of the man outside a pressurised compartment, to pick up, for instance, soil samples or do certain repair work in case of an emergency. The requirements to the Mars suit and especially to the personal self-contained life support system (LSS) will depend in many respects on the Mars environmental conditions, the space vehicle system concept and performance characteristics, the airlock and its interface design, the availability of expendable elements for the LSS, etc. The paper reviews principal problems, which have to be solved during development of the Martian suit. A special attention is paid to the issue of suited man mobility during traversing on the planet surface. The paper also reviews the arguments for application of a suit semi-rigid design concept and evaluates potentialities of using certain elements of the existing "Orlan" type suit. The paper presents results of a number of studies on selection of the planetary SS enclosure concept and on experimental evaluation of mobility of the lower torso and leg enclosures in conjunction with a specially designed prototype model (tentative model) of the SS enclosure.

  11. Z-2 Space Suit: A Case Study in Human Spaceflight Public Outreach

    Science.gov (United States)

    McFarland, Shane M.

    2016-01-01

    NASA Johnson Space Center's Z-series of planetary space suit prototypes is an iterative development platform with a Mars-forward design philosophy, targeting a Mars surface mission in the mid-2030s. The first space suit assembly, called the Z-1, was delivered in 2012. While meeting the project's stated requirements and objectives, the general public's reception primarily focused on the color scheme, which vaguely invoked similarity to a certain animated cartoon character. The public at large has and continues to be exposed to varying space suit design aesthetics from popular culture and low TRL technology maturation efforts such as mechanical counterpressure. The lesson learned was that while the design aesthetic is not important from an engineering perspective, the perception of the public is important for NASA and human spaceflight in general. For the Z-2 space suit, an integrated public outreach strategy was employed to engage, excite and educate the public on the current technology of space suits and NASA's plans moving forward. The keystone of this strategy was a public vote on three different suit cover layer aesthetics, the winner of which would be used as inspiration in fabrication. Other components included social media, university collaboration, and select media appearances, the cumulative result of which, while intangible in its benefit, was ultimately a positive effect in terms of the image of NASA as well as the dissemination of information vital to dispelling public misconceptions.

  12. Post-collisional magmatism in the central East African Orogen: The Maevarano Suite of north Madagascar

    Science.gov (United States)

    Goodenough, K.M.; Thomas, Ronald J.; De Waele, B.; Key, R.M.; Schofield, D.I.; Bauer, W.; Tucker, R.D.; Rafahatelo, J.-M.; Rabarimanana, M.; Ralison, A.V.; Randriamananjara, T.

    2010-01-01

    Late tectonic, post-collisional granite suites are a feature of many parts of the Late Neoproterozoic to Cambrian East African Orogen (EAO), where they are generally attributed to late extensional collapse of the orogen, accompanied by high heat flow and asthenospheric uprise. The Maevarano Suite comprises voluminous plutons which were emplaced in some of the tectonostratigraphic terranes of northern Madagascar, in the central part of the EAO, following collision and assembly during a major orogeny at ca. 550 Ma. The suite comprises three main magmatic phases: a minor early phase of foliated gabbros, quartz diorites, and granodiorites; a main phase of large batholiths of porphyritic granitoids and charnockites; and a late phase of small-scale plutons and sheets of monzonite, syenite, leucogranite and microgranite. The main phase intrusions tend to be massive, but with variably foliated margins. New U-Pb SHRIMP zircon data show that the whole suite was emplaced between ca. 537 and 522 Ma. Geochemically, all the rocks of the suite are enriched in the LILE, especially K, and the LREE, but are relatively depleted in Nb, Ta and the HREE. These characteristics are typical of post-collisional granitoids in the EAO and many other orogenic belts. It is proposed that the Maevarano Suite magmas were derived by melting of sub-continental lithospheric mantle that had been enriched in the LILE during earlier subduction events. The melting occurred during lithospheric delamination, which was associated with extensional collapse of the East African Orogen. ?? 2009 Natural Environment Research Council.

  13. Development of an Objective Space Suit Mobility Performance Metric Using Metabolic Cost and Functional Tasks

    Science.gov (United States)

    McFarland, Shane M.; Norcross, Jason

    2016-01-01

    Existing methods for evaluating EVA suit performance and mobility have historically concentrated on isolated joint range of motion and torque. However, these techniques do little to evaluate how well a suited crewmember can actually perform during an EVA. An alternative method of characterizing suited mobility through measurement of metabolic cost to the wearer has been evaluated at Johnson Space Center over the past several years. The most recent study involved six test subjects completing multiple trials of various functional tasks in each of three different space suits; the results indicated it was often possible to discern between different suit designs on the basis of metabolic cost alone. However, other variables may have an effect on real-world suited performance; namely, completion time of the task, the gravity field in which the task is completed, etc. While previous results have analyzed completion time, metabolic cost, and metabolic cost normalized to system mass individually, it is desirable to develop a single metric comprising these (and potentially other) performance metrics. This paper outlines the background upon which this single-score metric is determined to be feasible, and initial efforts to develop such a metric. Forward work includes variable coefficient determination and verification of the metric through repeated testing.

  14. Application of Fault Management Theory to the Quantitative Selection of a Launch Vehicle Abort Trigger Suite

    Science.gov (United States)

    Lo, Yunnhon; Johnson, Stephen B.; Breckenridge, Jonathan T.

    2014-01-01

    , the abort triggers must have low false negative rates to be sure that real crew-threatening failures are detected, and also low false positive rates to ensure that the crew does not abort from non-crew-threatening launch vehicle behaviors. The analysis process described in this paper is a compilation of over six years of lessons learned and refinements from experiences developing abort triggers for NASA's Constellation Program (Ares I Project) and the SLS Program, as well as the simultaneous development of SHM/FM theory. The paper will describe the abort analysis concepts and process, developed in conjunction with SLS Safety and Mission Assurance (S&MA) to define a common set of mission phase, failure scenario, and Loss of Mission Environment (LOME) combinations upon which the SLS Loss of Mission (LOM) Probabilistic Risk Assessment (PRA) models are built. This abort analysis also requires strong coordination with the Multi-Purpose Crew Vehicle (MPCV) and SLS Structures and Environments (STE) to formulate a series of abortability tables that encapsulate explosion dynamics over the ascent mission phase. The design and assessment of abort conditions and triggers to estimate their Loss of Crew (LOC) Benefits also requires in-depth integration with other groups, including Avionics, Guidance, Navigation and Control(GN&C), the Crew Office, Mission Operations, and Ground Systems. The outputs of this analysis are a critical input to SLS S&MA's LOC PRA models. The process described here may well be the first full quantitative application of SHM/FM theory to the selection of a sensor suite for any aerospace system.

  15. Adapting the Critical Thinking Assessment Test for Palestinian Universities

    Science.gov (United States)

    Basha, Sami; Drane, Denise; Light, Gregory

    2016-01-01

    Critical thinking is a key learning outcome for Palestinian students. However, there are no validated critical thinking tests in Arabic. Suitability of the US developed Critical Thinking Assessment Test (CAT) for use in Palestine was assessed. The test was piloted with university students in English (n = 30) and 4 questions were piloted in Arabic…

  16. Critical values in hematology of 862 institutions in China.

    Science.gov (United States)

    Ye, Y Y; Zhao, H J; Fei, Y; Wang, W; He, F L; Zhong, K; Yuan, S; Wang, Z G

    2017-10-01

    A national survey on critical values in hematology of China laboratories was conducted to determine the current practice and assess the quality indicators so as to obtain a quality improvement. Laboratories participating were asked to submit the general information, the practice of critical value reporting, and the status of timeliness of critical value reporting. A total of 862 laboratories submitted the results. The majority of participants have included white blood cell count, blood platelet count, hemoglobin, prothrombin time, and activated partial thromboplastin time in their critical value lists. Many sources are used for establishing a critical value policy, and some of the laboratories consult with clinicians. The unreported critical value rate, late critical value reporting rate, and clinically unacknowledged rate in China are relatively low, and the median of critical value reporting time is 8-9 minutes. There exists a wide variety for critical value reporting in hematology in China. Laboratories should establish a policy of critical value reporting suited for their own situations and consult with clinicians to set critical value lists. Critical values are generally reported in a timely manner in China, but some measures should be taken to further improve the timeliness of critical value reporting. © 2017 John Wiley & Sons Ltd.

  17. Mobility and Agility During Locomotion in the Mark III Space Suit.

    Science.gov (United States)

    Cullinane, Conor R; Rhodes, Richard A; Stirling, Leia A

    2017-06-01

    The Mark III (MIII) space suit assembly (SSAs) implements a multibearing, hard-material hip brief assembly (HBA). We hypothesize that: 1) the MIII HBA restricts operator mobility and agility which manifests in effects to gait parameters; 2) the waist bearing provides rotational motion, partially alleviating the restrictions; and 3) there are resistive, speed-dependent torques associated with the spinning bearings which further diminish mobility and agility. A subject (Suited and Unsuited) performed two planetary tasks-walking forward (WF) and backward (WB). An analysis of variance (ANOVA) and post hoc comparisons were performed to determine interaction effects. Motion capture data was processed to obtain gait parameters: static base (m), dynamic base (m), step length (m), stride length (m), cadence (steps/min), center of mass speed (m · s-1), foot clearance (toe and heel) (m), and bearing angular velocities (° · s-1). The static base when Suited (0.355 m) was larger than Unsuited (0.263 m). The Suited dynamic base (pooled, 0.200 m) was larger than both Unsuited WF (0.081 m) and WB (0.107 m). When Suited, the operator had lower clearance heights. The waist bearings provided about 7.2° of rotation when WB and WF. The maximum torque, while WF, in the right upper and mid bearings was 15.6 ± 1.35 Nm and 16.3 ± 1.28 Nm. This study integrated suit component properties and the emergent biomechanics of the operator to investigate how biomechanics are affected. The human hip has three collocated degrees of freedom (DOFs), whereas the HBA has a single DOF per bearing. The results can inform requirements for future SSA and other wearable system designs and evaluations.Cullinane CR, Rhodes RA, Stirling LA. Mobility and agility during locomotion in the Mark III space suit. Aerosp Med Hum Perform. 2017; 88(6):589-596.

  18. Heavy-mineral suites in unconsolidated Paleocene and younger sands, western Tennessee

    Science.gov (United States)

    Blankenship, Reginald R.

    1956-01-01

    Heavy-mineral suites from unconsolidated sands of Wilcox and Claiborne age (Eocene) in the subsurface of western Tennessee were tabulated and compared with heavy-mineral suites obtained from outcropping sands known to be of Midway (Paleocene) and Wilcox age and younger. In the subsurface at Memphis, both pink and colorless garnet are relatively abundant in the Claiborne but rare in the Wilcox. Garnet, however, is very rare in both the Claiborne and the Wilcox in the subsurface 35 miles northeast of Memphis. The mineral is very rare also in the terrace sands of western Tennessee and in samples of the Pliocene(?) and Pleistocene deposits of the Tennessee River in eastern and western Tennessee. It is possible, therefore, that the relative abundance of the mineral garnet is related to the quantity of sediment received from differing source areas in Wilcox and Claiborne times, but that, owing to the shifting of the axis of the embayment, no one source area furnished all the sediment for any formation. Heavy-mineral suites from Pliocene(?) and Pleistocene terrace deposits of the Tennessee River in both eastern and western Tennessee, and heavy-mineral suites from Pliocene(?) deposits of the Mississippi River are much alike, and the only isotropic mineral noted in these sediments was a very rare green mineral. Heavy-mineral suites from Recent deposits of the Mississippi River at Memphis and reported heavy-mineral suites from Cambrian sandstones of Wisconsin and Minnesota differ greatly from heavy-mineral suites of Pliocene(?) terrace deposits of the Tennessee and Mississippi Rivers and include much pink and colorless garnet. The possibility, therefore, is suggested that the Pliocene(?) terrace deposits of the Mississippi River in western Tennessee were derived largely from the basin of the Tennessee River.

  19. Nuclear criticality safety guide

    Energy Technology Data Exchange (ETDEWEB)

    Pruvost, N.L.; Paxton, H.C. [eds.

    1996-09-01

    This technical reference document cites information related to nuclear criticality safety principles, experience, and practice. The document also provides general guidance for criticality safety personnel and regulators.

  20. The Balletto suites in the choreographic manuals of Fabritio Caroso and Cesare Negri: a study of danced suites in Italy during the sixteenth and early seventeenth centuries

    OpenAIRE

    Monahin, Nona

    2016-01-01

    This study focuses on the danced suites described in the manuals of two prominent sixteenth-century Italian dancing masters, Fabritio Caroso and Cesare Negri. Caroso produced two manuals: Il Ballarino (Venice, 1581) and La Nobiltà di Dame (Venice, 1600, 1605). Negri wrote one, Le Gratie d’Amore (Milan, 1602; reissued as Nuove Inventioni di balli in 1604). Together, these three dance manuals contain choreographic instructions and music for a total of one hundred and seventy-two compositions, s...

  1. Psychobiological responses to critically evaluated multitasking

    OpenAIRE

    Wetherell, Mark; Craw, Olivia; Smith, Kenny; Smith, Michael

    2017-01-01

    In order to understand psychobiological responses to stress it is necessary to observe how people react to controlled stressors. A range of stressors exist for this purpose; however, laboratory stressors that are representative of real life situations provide more ecologically valid opportunities for assessing stress responding. The current study assessed psychobiological responses to an ecologically valid laboratory stressor involving multitasking and critical evaluation. The stressor elicit...

  2. Systems validation: application to statistical programs

    Directory of Open Access Journals (Sweden)

    Carter Rickey E

    2005-01-01

    Full Text Available Abstract Background In 2003, the United States Food and Drug Administration (FDA released a guidance document on the scope of "Part 11" enforcement. In this guidance document, the FDA indicates an expectation of a risk-based approach to determining which systems should undergo validation. Since statistical programs manage and manipulate raw data, their implementation should be critically reviewed to determine whether or not they should undergo validation. However, the concepts of validation are not often discussed in biostatistics curriculum. Discussion This paper summarizes a "Plan, Do, Say" approach to validation that can be incorporated into statistical training so that biostatisticians can understand and implement validation principles in their research. Summary Validation is a process that requires dedicated attention. The process of validation can be easily understood in the context of the scientific method.

  3. The Next Generation of Cold Immersion Dry Suit Design Evolution for Hypothermia Prevention

    Science.gov (United States)

    Galofaro, Joel

    2013-01-01

    This new utility patent is an active design that relies on the lung's role as an organic heat exchanger for providing deep body core heating of air. It is based on the fact that the greatest heat loss mechanism for an insulated human body immersed in a cold water environment is due to heat loss through respiration. This innovation successfully merges two existing technologies (cold immersion suit and existing valve technologies) to produce a new product that helps prevent against the onset of hypothermia at sea. During normal operations, a human maintains an approximate body temperature of [98.6 F (37 C)]. A mechanism was developed to recover the warm temperature from the body and reticulate it in a survival suit. The primary intention is to develop an encompassing systems design that can both easily and cost effectively be integrated in all existing currently manufactured cold water survival suits, and as such, it should be noted that the cold water immersion suit is only used as a framework or tool for laying out the required design elements. At the heart of the suit is the Warm Air Recovery (WAR) system, which relies on a single, large Main Purge Valve (MPV) and secondary Purge Valves (PV) to operate. The main purge valve has a thin membrane, which is normally closed, and acts as a one-way check valve. When warm air is expelled from the lungs, it causes the main purge valve to open. Air forced from the MPV is dumped directly into the suit, thereby providing warmth to the torso, legs, and arms. A slight positive over-pressure in the suit causes warm waste air (or water if the suit is punctured) to be safely vented into the sea through large PVs located at the bottom of each arm and leg. The secondary purge valves act to prevent the buildup of large concentrations of CO2 gas and help guard against asphyxia. It is noted that the MPV causes the inhalation and exhalation cycles to be completely isolated from one another in the current suit design.

  4. Airborne irritant contact dermatitis from metal dust adhering to semisynthetic working suits.

    Science.gov (United States)

    Hafner, J; Rüegger, M; Kralicek, P; Elsner, P

    1995-05-01

    2 workers at an aircraft factory were employed in a plasma sparying unit. Soon after they were equipped with new semisynthetic working suits, they started to complain of pruritic eruptions after heavy exposure to metal dust. They noted that the dust was not as easily blown off the clothes by pressurized air as previously. Clinical findings consisted of discrete macular and papular lesions, partly follicular, on the ventral and medial thighs. Atopy score, IgE level and a standard series of prick tests ruled out atopic disposition. Patch tests revealed no reactions. A diagnosis of occupational airborne irritant contact dermatitis from metal dust was therefore made. To elucidate the role of the working suit, extensive physical investigations of the physical properties of the textile were performed. Microscopic pictures at low magnification showed more dust particles on the semisynthetic working suit, compared to the former pure cotton suit. This impression could not be confirmed by particle count because of too uneven particle distribution at higher magnification. Hairiness of the 2 textiles was low and ruled out irritation by the semisynthetic textile itself. No difference in electrostatic properties between the 2 working suits could be established either. Both textiles showed high static electrical propensity. When use of the semisynthetic overall was discontinued, the patients reported no recurrence.(ABSTRACT TRUNCATED AT 250 WORDS)

  5. Evaluation of Reasons to Divorce in Divorce Suits Took Place in Istanbul in 1999

    Directory of Open Access Journals (Sweden)

    Halim Dişsever

    2000-12-01

    Full Text Available 3060 divorce suits are within the scope of this research, which aims to evaluate the reasons of divorce in Istanbul. Among 3060 divorce suits, 67.1% of them (2053 were brought to an action by women and 32.9% of them (1007 by men. The reasons to divorce according to how frequently they were seen are: severe incompatibility, heavy alcohol consumption, attempt against life, and willful desertion in due respect. a 1.6% of divorced couples (1272 had no child. 40.4% of these couples (12.36 had 5 years of marriage. In case of having a child, the child's guardianship was mostly given to mother due to his/her young age. In 7.6% (2.3.3 > of divorce suits either mother or father was registered to Istanbul as their birthplace, in 28.2% (864 of the suits couples were both registered to Istanbul, and in 64.2% (196.3 of the suits divorced couples were out of Istanbul. Divorced couples and their children have emotional and economic problems after divorce. They also have problems of social security, unemployment, education and subsistence allowance. Therefore, data evaluation proposed that social support mechanisms of the society must be improved. Key Words: Divorce, divorce reasons.

  6. Ensuring validity in qualitative international business research

    DEFF Research Database (Denmark)

    Andersen, Poul Houman; Skaates, Maria Anne

    2002-01-01

    The purpose of this paper is to provide an account of how the validity issue related to qualitative research strategies within the IB field may be grasped from an at least partially subjectivist point of view. In section two, we will first assess via the aforementioned literature review the extent...... section four, we will present some strategies for ensuring validity during the research process as well as illustrate various ways in which validity considerations may be written in IB articles, to allow for a greater extent of critical evaluation of validity claims. Finally, in the concluding section...

  7. A Critical Humanist Curriculum

    Science.gov (United States)

    Magill, Kevin; Rodriguez, Arturo

    2015-01-01

    This essay is a critical humanist discussion of curriculum; a departure from the technicist view of education [education meant to support a global capitalist economy] and an analysis of curriculum considering critical humanism, political economy and critical race theory among other modes of critical analysis and inquiry. Our discussion supports a…

  8. Thermal comfort of diving dry suit with the use of the warp-knitted fabric

    Science.gov (United States)

    Lenfeldova, I.; Hes, L.; Annayeva, M.

    2016-07-01

    Achievement of a good level of thermal comfort of under-suits for dry suit diving which enable also the required mobility of the diver in water is inevitable not only for the scuba sport and commercial diving people but also for safety and activities of people who make research under water. The aim of this work is to verify whether selected knitted structures (which are not waterproof) can substitute the currently used textile materials (nonwovens). This dry-suit innovation is intended to increase the properties which correspond to the perception of thermal comfort of the diver in water. To achieve this objective, the Alambeta thermal tester was used in the study for experimental determination of thermal resistance of spacer warp knitted fabric at varying contact pressure. The studied textiles were expected to be very suitable for the intended application due to their low compressibility which yields relatively high thickness a hence increased thermal insulation.

  9. Maximal frequent sequence based test suite reduction through DU-pairs

    Directory of Open Access Journals (Sweden)

    Narendra Kumar Rao Bangole

    2014-08-01

    Full Text Available The current paper illustrates the importance of clustering the frequent items of code coverage during test suite reduction. A modular Most maximal frequent sequence clustered algorithm has been used along with a Requirement residue based test case reduction process. DU-pairs form the basic code coverage requirement under consideration for test suite reduction. This algorithm farewell when compared with few other algorithms like Harrold Gupta and Soffa (HGS and Bi-Objective Greedy (BOG algorithms and Greedy algorithms in covering all the DU-Pairs. The coverage criteria achieved is 100% in many cases, except for few insufficient and incomplete test suites.DOI: http://dx.doi.org/10.15181/csat.v2i1.396

  10. A Comparison of Methods for Assessing Space Suit Joint Ranges of Motion

    Science.gov (United States)

    Aitchison, Lindsay T.

    2012-01-01

    Through the Advanced Exploration Systems (AES) Program, NASA is attempting to use the vast collection of space suit mobility data from 50 years worth of space suit testing to build predictive analysis tools to aid in early architecture decisions for future missions and exploration programs. However, the design engineers must first understand if and how data generated by different methodologies can be compared directly and used in an essentially interchangeable manner. To address this question, the isolated joint range of motion data from two different test series were compared. Both data sets were generated from participants wearing the Mark III Space Suit Technology Demonstrator (MK-III), Waist Entry I-suit (WEI), and minimal clothing. Additionally the two tests shared a common test subject that allowed for within subject comparisons of the methods that greatly reduced the number of variables in play. The tests varied in their methodologies: the Space Suit Comparative Technologies Evaluation used 2-D photogrammetry to analyze isolated ranges of motion while the Constellation space suit benchmarking and requirements development used 3-D motion capture to evaluate both isolated and functional joint ranges of motion. The isolated data from both test series were compared graphically, as percent differences, and by simple statistical analysis. The results indicated that while the methods generate results that are statistically the same (significance level p= 0.01), the differences are significant enough in the practical sense to make direct comparisons ill advised. The concluding recommendations propose direction for how to bridge the data gaps and address future mobility data collection to allow for backward compatibility.

  11. ORION Environmental Control and Life Support Systems Suit Loop and Pressure Control Analysis

    Science.gov (United States)

    Eckhardt, Brad; Conger, Bruce; Stambaugh, Imelda C.

    2015-01-01

    Under NASA's ORION Multi-Purpose Crew Vehicle (MPCV) Environmental Control and Life Support System (ECLSS) Project at Johnson Space Center's (JSC), the Crew and Thermal Systems Division has developed performance models of the air system using Thermal Desktop/FloCAD. The Thermal Desktop model includes an Air Revitalization System (ARS Loop), a Suit Loop, a Cabin Loop, and Pressure Control System (PCS) for supplying make-up gas (N2 and O2) to the Cabin and Suit Loop. The ARS and PCS are designed to maintain air quality at acceptable O2, CO2 and humidity levels as well as internal pressures in the vehicle Cabin and during suited operations. This effort required development of a suite of Thermal Desktop Orion ECLSS models to address the need for various simulation capabilities regarding ECLSS performance. An initial highly detailed model of the ARS Loop was developed in order to simulate rapid pressure transients (water hammer effects) within the ARS Loop caused by events such as cycling of the Pressurized Swing Adsorption (PSA) Beds and required high temporal resolution (small time steps) in the model during simulation. A second ECLSS model was developed to simulate events which occur over longer periods of time (over 30 minutes) where O2, CO2 and humidity levels, as well as internal pressures needed to be monitored in the cabin and for suited operations. Stand-alone models of the PCS and the Negative Pressure relief Valve (NPRV) were developed to study thermal effects within the PCS during emergency scenarios (Cabin Leak) and cabin pressurization during vehicle re-entry into Earth's atmosphere. Results from the Orion ECLSS models were used during Orion Delta-PDR (July, 2014) to address Key Design Requirements (KDR's) for Suit Loop operations for multiple mission scenarios.

  12. Monitoring Human Performance During Suited Operations: A Technology Feasibility Study Using EMU Gloves

    Science.gov (United States)

    Bekdash, Omar; Norcross, Jason; McFarland, Shane

    2015-01-01

    Mobility tracking of human subjects while conducting suited operations still remains focused on the external movement of the suit and little is known about the human movement within it. For this study, accelerometers and bend sensitive resistors were integrated into a custom carrier glove to quantify range of motion and dexterity from within the pressurized glove environment as a first stage feasibility study of sensor hardware, integration, and reporting capabilities. Sensors were also placed on the exterior of the pressurized glove to determine if it was possible to compare a glove joint angle to the anatomical joint angle of the subject during tasks. Quantifying human movement within the suit was feasible, with accelerometers clearly detecting movements in the wrist and reporting expected joint angles at maximum flexion or extension postures with repeatability of plus or minus 5 degrees between trials. Bend sensors placed on the proximal interphalangeal and distal interphalangeal joints performed less well. It was not possible to accurately determine the actual joint angle using these bend sensors, but these sensors could be used to determine when the joint was flexed to its maximum and provide a general range of mobility needed to complete a task. Further work includes additional testing with accelerometers and the possible inclusion of hardware such as magnetometers or gyroscopes to more precisely locate the joint in 3D space. We hope to eventually expand beyond the hand and glove and develop a more comprehensive suit sensor suite to characterize motion across more joints (knee, elbow, shoulder, etc.) and fully monitor the human body operating within the suit environment.

  13. Clay-mineral suites, sources, and inferred dispersal routes: Southern California continental shelf.

    Science.gov (United States)

    Hein, James R; Dowling, Jennifer S; Schuetze, Anthony; Lee, Homa J

    2003-01-01

    Clay mineralogy is useful in determining the distribution, sources, and dispersal routes of fine-grained sediments. In addition, clay minerals, especially smectite, may control the degree to which contaminants are adsorbed by the sediment. We analyzed 250 shelf sediment samples, 24 river-suspended-sediment samples, and 12 river-bed samples for clay-mineral contents in the Southern California Borderland from Point Conception to the Mexico border. In addition, six samples were analyzed from the Palos Verdes Headland in order to characterize the clay minerals contributed to the offshore from that point source. The areas and standard weighting factors. Most fine-grained sediment is supplied to the shelf by rivers during major winter storms, especially during El Niño years. The largest sediment fluxes to the region are from the Santa Ynez and Santa Clara Rivers, which drain the Transverse Ranges. The mean clay-mineral suite for the entire shelf sediment data set (26% smectite, 50% illite, 24% kaolinite+chlorite) is closely comparable to that for the mean of all the rivers (31% smectite, 49% illite, 20% kaolinite+chlorite), indicating that the main source of shelf fine-grained sediments is the adjacent rivers. However, regional variations do exist and the shelf is divided into four provinces with characteristic clay-mineral suites. The means of the clay-mineral suites of the two southernmost provinces are within analytical error of the mineral suites of adjacent rivers. The next province to the north includes Santa Monica Bay and has a suite of clay minerals derived from mixing of fine-grained sediments from several sources, both from the north and south. The northernmost province clay-mineral suite matches moderately well that of the adjacent rivers, but does indicate some mixing from sources in adjacent provinces.

  14. 3rd International Workshop on Critical Systems Development with UML

    OpenAIRE

    Jan Jürjens; Eduardo B. Fernandez; Robert France; Bernhard Rumpe

    2017-01-01

    Topics of the Workshop include: --- Applications of UML to real-time systems security-critical systems dependable / safety-critical systems performance-critical systems embedded systems hybrid systems reactive systems --- Extensions of UML (UML-RT, UMLsec, Automotive UML, Embedded UML, ...) and new developments (UML 2.0, MDA) --- Modeling, synthesis, model transformation, code generation, testing, validation, and verification of critical systems using UML --- Aspect-oriented or Component-base...

  15. A qualitative tool for critical thinking skill development.

    Science.gov (United States)

    Cise, Janice Surina; Wilson, Connie S; Thie, Martha J

    2004-01-01

    Quantitative measures were not meeting the needs of faculty for evaluating critical thinking among Baccalaureate of Science Nursing students. The authors discuss the critical thinking self-reflection tool that was developed for teaching critical thinking and qualitatively evaluating changes over time with established interrater reliability and content validity. The tool is consistent with the concepts of critical thinking in the curriculum and was implemented systematically in all clinical nursing courses.

  16. Validation of computational fluid dynamics

    Science.gov (United States)

    Sacher, P. W.; Bradley, R. G., Jr.; Schmidt, W.

    1989-05-01

    The Fluid Dynamics Panel AGARD Symposium entitled Validation of Computational Fluid Dynamics is reviewed and evaluated. The purpose of the Symposium was to assess the state of the art of Validation of Computer Codes and to ensure that the mathematical and numerical schemes employed in the codes correctly model the critical physics of the flow field under consideration. The evaluator addresses each of the papers presented separately and makes general comments on the seven major topic sessions. In addition, a Poster Session is reviewed in detail. It is evident that the new possibilities of CFD provide efficient tools for Analysis and Design in the Aeronautical Industry, but it is also evident that in spite of the existence of a number of excellent experimental databases, there is still a need for efforts in validating the computer programs both by experiment as well as by numerical exercises.

  17. Effects of interventions with therapeutic suits (clothing) on impairments and functional limitations of children with cerebral palsy: a systematic review.

    Science.gov (United States)

    Almeida, Kênnea M; Fonseca, Sérgio T; Figueiredo, Priscilla R P; Aquino, Amanda A; Mancini, Marisa C

    Therapeutic suits or clothing whether associated with intensive protocols or not, became popular in the rehabilitation of children with cerebral palsy. Studies have reported positive effects of these suits on children's posture, balance, motor function and gait. A summary of current literature may help guide therapeutic actions. To evaluate the available evidence on the effects of interventions based on the use of therapeutic suits in the treatment of impairments and functional limitations of children with cerebral palsy. Three independent reviewers searched for experimental studies on MEDLINE, SciELO, BIREME, LILACS, PEDro and CENTRAL databases, between October and December 2015 and updated in May 2016. The reviewers evaluated the methodological quality of selected studies using the Checklist for Measuring Quality. The Grading of Recommendations Assessment, Development and Evaluation was used to synthesize the quality of evidence and strength of recommendation. From the 13 studies, two evaluated the Full Body Suit, two tested the Dynamic Elastomeric Fabric Orthose, three evaluated TheraTogs and six tested the TheraSuit/AdeliSuit protocols. The quality of evidence for the Full Body Suit, the Dynamic Elastomeric Fabric Orthose and the TheraSuit/AdeliSuit protocols was very low for body structure and function outcomes, while the evidence for TheraTogs was low quality. Regarding the activity outcomes, the Full Body Suit and TheraSuit showed very low quality evidence while the evidence for TheraSuit/AdeliSuit protocols were of low quality. Enthusiasm with new therapeutic approaches that argue modifications in the neuromusculoskeletal impairments and functional limitations of children with cerebral palsy need to be guided by scientific evaluation. The low quality of evidence suggests caution in recommending the use of these therapeutic suits. New studies could change the findings of this review. Copyright © 2017 Associação Brasileira de Pesquisa e Pós-Graduação em

  18. Evolutionary complexity for protection of critical assets.

    Energy Technology Data Exchange (ETDEWEB)

    Battaile, Corbett Chandler; Chandross, Michael Evan

    2005-01-01

    This report summarizes the work performed as part of a one-year LDRD project, 'Evolutionary Complexity for Protection of Critical Assets.' A brief introduction is given to the topics of genetic algorithms and genetic programming, followed by a discussion of relevant results obtained during the project's research, and finally the conclusions drawn from those results. The focus is on using genetic programming to evolve solutions for relatively simple algebraic equations as a prototype application for evolving complexity in computer codes. The results were obtained using the lil-gp genetic program, a C code for evolving solutions to user-defined problems and functions. These results suggest that genetic programs are not well-suited to evolving complexity for critical asset protection because they cannot efficiently evolve solutions to complex problems, and introduce unacceptable performance penalties into solutions for simple ones.

  19. Labeled line drawing of launch and entry suit identifies various components

    Science.gov (United States)

    1988-01-01

    Line drawings illustrate the front and back of the space shuttle launch and entry suit (LES) and labels identify various components. LES was designed for STS-26, the return to flight mission, and subsequent missions. Included in the crew escape system (CES) package are launch and entry helmet (LEH) with communications carrier (COMM CAP), parachute pack and harness, life preserver unit (LPU), life raft unit (LRU), LES gloves, suit oxygen manifold and valves, boots, and survival gear. Details of larger components are also identified.

  20. Aerogel Use as a Skin Protective Liner In Space Suits and Prosthetic Limbs Project

    Science.gov (United States)

    Roberson, Luke Bennett

    2014-01-01

    Existing materials for prosthetic liners tend to be thick and airtight, causing perspiration to accumulate inside the liner and potentially causing infection and injury. The purpose of this project was to examine the suitability of aerogel for prosthetic liner applications for use in space suits and orthopedics. Three tests were performed on several types of aerogel to assess the properties of each material, and our initial findings demonstrated that these materrials would be excellent candidates for liner applications for prosthetics and space suits. The project is currently on hold until additional funding is obtained for application testing at the VH Hospitals in Tampa