Science.gov

Sample records for agency research triangle

  1. PRELIMINARY FINDINGS FROM THE NERL RESEARCH TRIANGLE PARK PARTICULATE MATTER PANEL STUDY

    EPA Science Inventory

    The U.S. Environmental Protection Agency is currently conducting the National Exposure Research Laboratory (NERL) Research Triangle Park (RTP) Particulate Matter (PM) Panel Study. This study represents a one year investigation of PM and related co-pollutants involving two dist...

  2. THE RESEARCH TRIANGLE PARK PARTICULATE MATTER PANEL STUDY: PM MASS CONCENTRATION RELATIONSHIPS

    EPA Science Inventory

    The U.S. Environmental Protection Agency has recently performed the Research Triangle Park Particulate Matter Panel Study. This was a one-year investigation of PM and related co-pollutants involving participants living within the RTP area of North Carolina. Primary goals were t...

  3. Educational Research and the 'Bermuda Triangle.'

    ERIC Educational Resources Information Center

    Halls, W. D.

    1983-01-01

    In answer to the suggestion that policymakers, researchers, and teachers unanimously agree that research is hardly taken into account by its potential users, the author provides an overview of educational research in Western Europe. Projects involve disciplines, history of education, and curriculum. (KC)

  4. Evolution of the Utah energy research triangle: A contemporary case study in the nexus of applied research and public policy

    NASA Astrophysics Data System (ADS)

    Walker, Alan John

    The evolution of the Utah Energy Research Triangle began August 2009 with Governor Gary Herbert's inauguration. On January 26, 2010 Governor Herbert delivered his first State of the State Address and announced the "most impactful economic initiative ever taken in our state...the Utah Energy Initiative." Even before this speech, actions were underway as the Governor assembled 16 energy professionals who forged Utah's 10-Year Strategic Energy Plan (Plan) released March 2011. The priorities in the Plan included: (1) establishing the Office of Energy Development in 2011; (2) launching the annual Governor's Energy Development Summits beginning in 2012; and (3) executing the first cycle of the Utah Energy Research Triangle in 2013 through 2015. Other objectives would be achieved as the Plan unfolded but those lower priorities are beyond the scope of this case study. This study will review the three priorities noted and focus on the execution of the Energy Research Triangle as a nexus of applied research and public policy. The Plan's vision was to "align the State's main research universities...into a powerful energy research and development triangle...through increased collaboration." In March 2014, execution of the first cycle of the Energy Research Triangle resulted in seven new research efforts across three research university campuses in Utah - Brigham Young University (BYU), Utah State University (USU), and the University of Utah (UofU). These research programs included eighteen researchers tackling principle energy issues: air quality, hydrocarbon transportation, and safety. Seven other researchers were awarded Governor's Energy Leadership Scholarships with requirements to address topics including efficient solar power, cold-weather battery performance, and molten salt energy storage. Final results will be known in June 2015, but collaboration on energy issues is active and ongoing. Together the three research teams are successfully reaching out to industry and

  5. Report: Results of Technical Network Vulnerability Assessment: EPA’s Research Triangle Park Finance Center

    EPA Pesticide Factsheets

    Report #09-P-0227, August 31, 2009. Vulnerability testing conducted in April 2009 of EPA’s Research Triangle Park Finance Center network identified Internet Protocol addresses with several highrisk vulnerabilities.

  6. Fact Sheet on EPA's Science, Technology, Engineering & Math (STEM) Outreach Program in Research Triangle Park

    EPA Pesticide Factsheets

    Employees from EPA’s Research Triangle Park (RTP) campus serve as guest speakers at local schools and in the community. Hands-on activities and interactive discussions supplement classroom instruction and promote environmental awareness

  7. Disconnected Youth in the Research Triangle Region: An Ominous Problem Hidden in Plain Sight

    ERIC Educational Resources Information Center

    Dodson, David; Guillory, Ferrel; Lipsitz, Joan; Raper, Noah; Rausch, Christina

    2008-01-01

    In September 2006, the North Carolina GlaxoSmithKline Foundation commissioned MDC, Inc. of Chapel Hill to analyze the problem of "disconnected youth" in the Research Triangle region, determine the current state of the region's responses to the challenge, and recommend steps to deepen and accelerate action on the issue. The research process was…

  8. INDOOR AIR QUALITY AND FURNITURE PROCUREMENT IN EPA'S NEW RESEARCH TRIANGLE CAMPUS

    EPA Science Inventory

    The paper discusses various aspects of the EPA's new 1.2 million square foot building in Research Triangle Park that pertain to indoor air, with a particular focus on the process EPA used to select furniture to meet its indoor air guidelines. In keeping with its mission of protec...

  9. 78 FR 64018 - Manufacturer of Controlled Substances, Notice of Application, Research Triangle Institute

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ... that on July 25, 2013, Research Triangle Institute, Hermann Building East Institute Drive, P.O. Box... controlled substance listed in schedule I. The company plans to provide small quantities to commercial...: October 10, 2013. Joseph T. Rannazzisi, Deputy Assistant Administrator, Office of Diversion Control,...

  10. COMPOSITION OF PM 2.5 DURING THE SUMMER OF 2003 IN RESEARCH TRIANGLE PARK, NC

    EPA Science Inventory

    A field study was carried out during the summer of 2003 to examine the overall composition of fine particulate matter (PM2.5) in Research Triangle Park, North Carolina, USA, with particular emphasis on polar compounds from secondary organic aerosol (SOA). Collected sa...

  11. 78 FR 14366 - Triangle Capital Corporation; Notice of Application

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-05

    ... COMMISSION Triangle Capital Corporation; Notice of Application February 28, 2013. AGENCY: Securities and... Application: Triangle Capital Corporation (``Triangle'') requests an order (``Amended Order'') that would... directors (the ``Board''). \\1\\ Triangle Capital Corporation, Investment Company Act Release Nos. 28165...

  12. Faulhaber's Triangle

    ERIC Educational Resources Information Center

    Torabi-Dashti, Mohammad

    2011-01-01

    Like Pascal's triangle, Faulhaber's triangle is easy to draw: all you need is a little recursion. The rows are the coefficients of polynomials representing sums of integer powers. Such polynomials are often called Faulhaber formulae, after Johann Faulhaber (1580-1635); hence we dub the triangle Faulhaber's triangle.

  13. Meeting report: Urinary Pathology; sixth Research Triangle Park Rodent Pathology Course.

    PubMed

    Boyle, M C; Boyle, M H

    2013-05-01

    Urinary system toxicity is a significant concern to pathologists in the hazard identification, drug and chemical safety evaluation, and diagnostic service industries worldwide. There are myriad known human and animal urinary system toxicants, and investigatory renal toxicology and pathology is continually evolving. The system-specific Research Triangle Park (RTP) Rodent Pathology Course biennially serves to update scientists on the latest research, laboratory techniques, and debates. The Sixth RTP Rodent Pathology Course, Urinary Pathology, featured experts from the government, pharmaceutical, academic, and diagnostic arenas sharing the state of the science in urinary pathology. Speakers presented on a wide range of topics including background lesions, treatment-related non-neoplastic and neoplastic lesions, transgenic rodent models of human disease, diagnostic imaging, biomarkers, and molecular analyses. These seminars were accompanied by case presentation sessions focused on usual and unusual lesions, grading schemes, and tumors.

  14. Commensurable Triangles

    ERIC Educational Resources Information Center

    Parris, Richard

    2007-01-01

    Everyone knows what makes a 3-4-5 triangle special, but how many know what makes a 4-5-6 triangle special? It is an integer-sided triangle in which one angle is twice another. It is enjoyable to search for these things, but for those who are impatient, this article derives explicit polynomial formulas that generate all of the basic examples of…

  15. ON-ROAD REMOTE SENSING OF AUTOMOBILE EMISSIONS IN THE RESEARCH TRIANGLE PARK, NORTH CAROLINA AREA: 1997-2001

    EPA Science Inventory

    The report describes automobile exhaust remote sensing data collected by EPA at a number of sites in the Research Triangle Park, NC area during 1997. Data were also collected at one site in Raleigh, NC from 1998 through 2001 for the Coordinating Research Council (CRC) study of re...

  16. THE RESEARCH TRIANGLE PARK PARTICULATE MATTER PANEL STUDY: MODELING AMBIENT SOURCE CONTRIBUTION TO PERSONAL AND RESIDENTIAL PM MASS CONCENTRATIONS

    EPA Science Inventory

    The Research Triangle Park (RTP) Particulate Matter (PM) Panel Study represented a one-year investigation of personal, residential and ambient PM mass concentrations across distances as large as 70 km in central North Carolina. One of the primary goals of this effort was to est...

  17. Contributions of Biogenic and Anthropogenic Hydrocarbons to Secondary Organic Aerosol during 2006 in Research Triangle Park, NC

    EPA Science Inventory

    A recently developed, organic tracer-based method was used to estimate the secondary contributions of biogenic and anthropogenic precursor hydrocarbons to ambient organic carbon concentrations in PM2.5 during 2006 in Research Triangle Park, North Carolina, USA. Forty-s...

  18. Pascal's Triangle.

    ERIC Educational Resources Information Center

    Barton, Patricia Shea

    2003-01-01

    Notes that Montessori classrooms provide children with the opportunity to explore and discover mathematics. Describes the introduction to Pascal's Triangle as a suggested opportunity to connect young children to deep mathematical truths. Provides teachers with materials requirements, and notes ideas on what can be acquired from the problem, the…

  19. A Bermuda Triangle of Science

    ERIC Educational Resources Information Center

    Winkelsas, John

    2006-01-01

    The Bermuda Triangle is famous for the unexplained disappearances of ships and aircraft, and for strange meteorological phenomena that allegedly have occurred within its boundaries. This article presents an activity wherein students are asked to create their own geographical triangles to research, but instead of focusing on the unexplainable,…

  20. State Education Agencies as Research Arenas

    ERIC Educational Resources Information Center

    Pancrazio, Sally Bulkley

    1978-01-01

    The purpose of this paper is to discuss the roles of research in state education agencies and to identify five possible interactions among university and college and other non-SEA educational researchers and SEA researchers. (Author)

  1. Government: Senate Generous on Agency Research Budgets.

    ERIC Educational Resources Information Center

    Long, Janice

    1980-01-01

    Discussed is the senate's 1981 research and development appropriations. The senate has approved research funding levels higher than both the amount requested by the House and the Administration except in the case of the Environmental Protection Agency. Research agencies discussed are NASA, Energy, NSF, Commerce, and ERA. (Author/DS)

  2. 75 FR 22126 - Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-27

    .... Environmental Protection Agency, Research Triangle Park, North Carolina 27711. Designation of this new... AGENCY Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of One New Equivalent Method AGENCY: Environmental Protection Agency. ACTION: Notice of...

  3. WORKSHOP REPORT: COMPUTATIONAL TOXICOLOGY: FRAMEWORK, PARTNERSHIPS, AND PROGRAM DEVELOPMENT, SEPTEMBER 29-30, 2003, RESEARCH TRIANGLE PARK, NORTH CAROLINA

    EPA Science Inventory

    Computational toxicology is a new research initiative being developed within the Office of Research and Development (ORD) of the US Environmental Protection Agency (EPA). Operationally, it is defined as the application of mathematical and computer models together with molecular c...

  4. US Federal Agency Research on Ecosystem Services

    EPA Science Inventory

    Over the last decade, research and policy institutions across the globe have shown a dramatic increase in attention to the benefits that human society receives from ecosystems. In the U.S., a broad range of Federal resource management and environmental agencies are conducting r...

  5. Robotics research at Canadian Space Agency

    NASA Technical Reports Server (NTRS)

    Hui, Raymond

    1994-01-01

    In addition to major crown projects such as the Mobile Servicing System for Space Station, the Canadian Space Agency is also engaged in internal, industrial and academic research and development activities in robotics and other space-related areas of science and technology. These activities support current and future space projects, and lead to technology development which can be spun off to terrestrial applications, thus satisfying the Agency's objective of providing economic benefits to the public at large through its space-related work.

  6. Instrumentation Development for Plant Research at the Triangle Universities Nuclear Laboratory

    NASA Astrophysics Data System (ADS)

    Tripp, Nathan; Howell, Calvin; Crowell, Alex; Reid, Chantal; Weisenberger, Drew

    2012-10-01

    Plant physiology studies at TUNL use a variety of short-lived isotopes in radiotracing measurements. Two recently developed capabilities for this research are production of nitrogen-13 (N-13) in a water target and pulsed-loading of carbon-11 (C-11). Administering N-13 as a solution of aqueous nitrate ions allows researchers to observe plant uptake of nitrogen through the roots. The nitrogen tracer is produced through proton bombardment of a natural water target. Two main species of isotopes form during irradiation: the desired N-13 and a fluorine-18 (F-18) contaminant. A scrubber containing alumina pellets reduces the F-18 contamination by about an order of magnitude. C-11 administered as gaseous carbon dioxide allows researchers to observe plant uptake of carbon from the atmosphere. A system was constructed to deliver C-11 tagged air in bursts of adjustable width. The radioactive signatures of such pulses have sharp leading and trailing edges. This differs from the usual loading technique where the gradual exponential decay of C-11 dominates the trailing edge. This poster will include descriptions of the C-11 pulsing and N-13 production systems, their technical performance, and demonstrations of their use in plant physiology research at TUNL.

  7. Comparative toxicity and mutagenicity of soy-biodiesel and petroleum-diesel emissions: overview of studies from the U.S. EPA, Research Triangle Park, NC.

    PubMed

    Madden, Michael C

    2015-01-01

    Biodiesel use as a fuel is increasing globally as an alternate to petroleum sources. To comprehensively assess the effects of the use of biodiesel as an energy source, end stage uses of biodiesel such as the effects of inhalation of combusted products on human health must be incorporated. To date, few reports concerning the toxicological effects of the emissions of combusted biodiesel or blends of biodiesel on surrogates of health effects have been published. The relative toxicity of the combusted biodiesel emissions compared to petroleum diesel emissions with short term exposures is also not well known. To address the paucity of findings on the toxicity of combusted biodiesel emissions, studies were undertaken at the U.S. Environmental Protection Agency laboratories in Research Triangle Park, North Carolina. The studies used a variety of approaches with nonhuman animal models to examine biological responses of the lung and cardiovascular systems induced by acute and repeated exposures to pure biodiesel and biodiesel blended with petroleum diesel. Effects of the emissions on induction of mutations in bacterial test strains and mammalian DNA adducts were also characterized and normalized to engine work load. The emissions were characterized as to the physicochemical composition in order to determine the magnitude of the differences among the emissions utilized in the studies. This article summarizes the major finding of these studies which are contained within this special issue of Inhalation Toxicology. The findings provided in these articles provide information about the toxicity of biodiesel emissions relative to petroleum diesel emissions and which can be utilized in a life cycle analyses of the effects of increased biodiesel usage.

  8. The Research Triangle Park particulate matter panel study: modeling ambient source contribution to personal and residential PM mass concentrations

    NASA Astrophysics Data System (ADS)

    Williams, Ron; Suggs, Jack; Rea, Anne; Sheldon, Linda; Rodes, Charles; Thornburg, Jonathan

    The Research Triangle Park (RTP) Particulate Matter (PM) Panel Study represented a 1-year investigation of personal, residential and ambient PM mass concentrations across distances as large as 70 km in central North Carolina. One of the primary goals of this effort was to estimate ambient PM 2.5 contributions to personal and indoor residential PM mass concentrations. Analyses indicated that data from the two distinct non-smoking subject populations totaling 38 individuals and 37 residences could be pooled. This resulted in nearly 800 data points for each variable. A total of 55 measurements believed to have been potentially influenced by personal or residential exposure to passive environmental tobacco smoke were not included in the analysis database. Variables to be examined included Cig (concentration of indoor generated PM), Eig (personal exposure to indoor generated PM), Finf (ambient PM infiltration factor), and Fpex (personal exposure to PM of ambient origin factor). Daily air exchange rates (AER) were measured and statistical modeling to derive estimates of particle penetration ( P) and particle deposition ( k) factors was performed. Seasonality, cohort grouping, participant or combinations of these variables were determined not to be significant influences in estimating group infiltration factors. The mean (±std) mixed model slope estimates were AER=0.72±0.63, P=0.72±0.21, k=0.42±0.19, and Finf=0.45±0.21. These variables were then used in a number of mixed effects models having varying features of single, random or fixed intercepts and/or slopes to determine the most appropriate means of estimating ambient source contributions to personal and residential settings. A mixed model slope for Fpex (±SE) was 0.47±0.07 using the model with the highest degree of fit.

  9. "Use of Current Best Evidence": Promises and Illusions, Limitations and Contradictions in the Triangle of Research, Policy and Practice

    ERIC Educational Resources Information Center

    Lassnigg, Lorenz

    2012-01-01

    This paper explores the methodological and epistemological implications of the relationships between R&D, policy and practice. The proposals towards "evidence-based policy and practice" are analysed with respect to this triangle from three angles: (1) meaning; (2) production; and (3) use of evidence. A comprehensive model of the…

  10. A Many-Objective Approach to Developing Adaptive Water Supply Portfolios in the 'Research Triangle' Region of North Carolina

    NASA Astrophysics Data System (ADS)

    Zeff, H. B.; Kasprzyk, J. R.; Reed, P. M.; Characklis, G. W.

    2012-12-01

    This study uses many-objective evolutionary optimization to quantify the tradeoffs water utilities face when developing flexible water shortage response plans. Alternatives to infrastructure development, such as temporary demand management programs and inter-utility water transfer agreements, allow local water providers to develop portfolios of water supply options capable of adapting to changing hydrologic conditions and growing water demand. The extent to which these options are implemented will be determined by a number of conflicting operational and financial considerations. An integrated reservoir simulation model including four large water utilities in the 'Research Triangle' region of North Carolina is used to evaluate the potential tradeoffs resulting from regional demands on shared infrastructure, customer concerns, and the financial uncertainty caused by the intermittent and irregular nature of drought. Instead of providing one optimal solution, multi-objective evolutionary algorithms (MOEAs) use the concept of non-dominations to discover a set of portfolio options in which no solution is inferior to any other solution in all objectives. Interactive visual analytics enable water providers to explore these tradeoffs and develop water shortage response plans tailored to their individual circumstances. The simulation model is evaluated under a number of different formulations to help identify and visualize the impacts of water efficiency, revenue/cost variability, consumer effects, and inter-utility cooperation. The different problems are formulated by adding portfolio options and objectives in such a way that the lower dimensional problem formulations are sub-sets of the full formulation. The full formulation considers reservoir reliability, water use restriction frequency, total water transfer allotment, total costs, revenue/cost variability, and additional consumer losses during restrictions. The simulation results highlight the inadequacy of lower order

  11. Distributions of PM2.5 source strengths for cooking from the Research Triangle Park particulate matter panel study.

    PubMed

    Olson, David A; Burke, Janet M

    2006-01-01

    Emission rates, decay rates, and cooking durations are reported from continuous PM2.5 (particulate matter less than 2.5 microm) concentrations measured using personal DataRam nephelometers (1-min time resolution) from the Research Triangle Park (RTP) PM panel study. The study (n = 37 participants) included monitoring for 7 consecutive days in each of four consecutive seasons (summer 2000 through spring 2001). Cooking episodes (n = 411) were selected using time-activity diaries and criteria for cooking event duration, peak concentration level, and decay curve quality. Averaged across all cooking events, mean source strengths were 36 mg/min (median = 12 mg/min), mean decay rates were 0.27 h(-1) (0.17 h(-1)), and mean cooking durations were 11 min (7 min). Cooking events were further separated into one of seven categories representing cooking method: burned food (oven cooking, toaster, or stovetop cooking), grilling, microwave, toaster oven, frying, oven cooking, and stovetop cooking. The highest mean source strengths were identified from burned food (mean = 470 mg/min), grilling (173 mg/min), and frying (60 mg/ min); differences between both burned food and grilling compared with all remaining cooking methods were statistically significant. Source strengths, decay rates, and cooking durations were also compared by season and typical meal times (8:00 a.m., 12:00 p.m., and 6:00 p.m.); differences were generally not statistically significant for these cases. Mean source strengths using electric appliances were typically a factor of 2 greater than those using gas appliances for identical cooking methods (frying, oven cooking, or stovetop cooking), although in all cases the difference was not statistically significant. Distributions of source strengths and decay rates for cooking events were also compared among study subjects to assess both within- and between-subject variability. Each subject's distribution of source strengths during the study tended to be either lower

  12. Water-quality trends for streams and reservoirs in the Research Triangle area of North Carolina, 1983-95

    USGS Publications Warehouse

    Childress, C.J.; Bathala, Neeti

    1997-01-01

    Water-quality and streamflow monitoring data, collected from 1983 to 1995, were analyzed for 34 stream and reservoir sites in a seven- county region within the upper Neuse and upper Cape Fear River Basins. Early data (1983-88) were compiled from U.S. Geological Survey water- quality studies and from the ambient water-quality monitoring network of the North Carolina Department of Environment, Health, and Natural Resources. Analyses of major ions, nutrients, metals, trace elements, and synthetic organic compounds were compiled from samples collected by the U.S. Geological Survey from 1988 to 1995 as part of a continuing project to monitor the water quality of surface-water supplies in the Research Triangle area of North Carolina, and from the North Carolina Department of Environment, Health, and Natural Resources ambient water-quality monitoring network. This report presents the results of analysis of consistently increasing or decreasing trends in concentrations of nitrogen and phosphorus species, suspended sediment, suspended solids, sodium, chloride, iron, manganese, zinc, and chlorophyll a from seasonal Kendall trend analysis on flow-adjusted concentrations for streams and concentrations in lakes. Total phosphorus concentrations also were tested for a step decrease in concentration (step trend) associated with the North Carolina phosphate-detergent ban of 1988. For some other constituents, insufficient data or values below laboratory detection limits precluded trend analysis. A regionwide decrease in total phosphorus, ranging from 25 to 81 percent was observed that coincided with increased phosphorus removal efforts at municipal wastewater-treatment facilities in the region and the statewide phosphate-detergent ban. Most sites had stable or decreasing trends in nitrogen concentrations; however, increasing trends occurred in the Neuse River near Clayton and at Smithfield, both of which are downstream from the developing Raleigh-Durham area. Chlorophyll a

  13. Beyond Pascal's Triangle

    ERIC Educational Resources Information Center

    Minor, Darrell P.

    2005-01-01

    In "Beyond Pascals Triangle" the author demonstrates ways of using "Pascallike" triangles to expand polynomials raised to powers in a fairly quick and easy fashion. The recursive method could easily be implemented within a spreadsheet, or simply by using paper and pencil. An explanation of why the method works follows the several examples that are…

  14. Dynamic Right Triangles

    ERIC Educational Resources Information Center

    Koyunkaya, Melike Yigit; Kastberg, Signe; Quinlan, James; Edwards, Michael Todd; Keiser, Jane

    2015-01-01

    Right triangles play a significant role in mathematics. In this favorite lesson, the authors help students understand variant and invariant properties by considering relationships among angle measures and side lengths in right triangles. Students explore these relationships using interactive mathematics software, changing one angle and observing…

  15. What is `Agency'? Perspectives in Science Education Research

    NASA Astrophysics Data System (ADS)

    Arnold, Jenny; Clarke, David John

    2014-03-01

    The contemporary interest in researching student agency in science education reflects concerns about the relevance of schooling and a shift in science education towards understanding learning in science as a complex social activity. The purpose of this article is to identify problems confronting the science education community in the development of this new research agenda and to argue that there is a need for research in science education that attends to agency as a social practice. Despite increasing interest in student agency in educational research, the term 'agency' has lacked explicit operationalisation and, across the varied approaches, such as critical ethnography, ethnographies of communication, discourse analysis and symbolic interactionism, there has been a lack of coherence in its research usage. There has also been argument concerning the validity of the use of the term 'agency' in science education research. This article attempts to structure the variety of definitions of 'student agency' in science education research, identifies problems in the research related to assigning intentionality to research participants and argues that agency is a kind of discursive practice. The article also draws attention to the need for researchers to be explicit in the assumptions they rely upon in their interpretations of social worlds. Drawing upon the discursive turn in the social sciences, a definition of agency is provided, that accommodates the discursive practices of both individuals and the various functional social groups from whose activities classroom practice is constituted. The article contributes to building a focused research agenda concerned with understanding and promoting student agency in science.

  16. Pythagorean and Heronian Triangles

    ERIC Educational Resources Information Center

    de Mestre, Neville; Marrows, Barney

    2007-01-01

    The basic Pythagorean theorem for right-angled triangles is well-known in mathematical terms as a[squared]+b[squared]+c[squared] were "a," "b," and "c" are the lengths of the sides of the triangle with "c" as the hypotenuse. When "a," "b," and "c" are all integers and obey this equation, they are referred to as a Pythagorean triple. One property…

  17. 78 FR 45188 - Agency Information Collection Activities; Proposed Collection; Comment Request; 8-Hour Ozone...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-26

    ..., mechanical or other technological collection techniques or other forms of information technology, e.g., by... Protection Agency, T.W. Alexander Drive, Research Triangle Park, NC 27711; telephone number: (919)...

  18. Community Agency Survey Formative Research Results From the TAAG Study

    PubMed Central

    Saunders, Ruth P.; Moody, Jamie

    2008-01-01

    School and community agency collaboration can potentially increase physical activity opportunities for youth. Few studies have examined the role of community agencies in promoting physical activity, much less in collaboration with schools. This article describes formative research data collection from community agencies to inform the development of the Trial of Activity for Adolescent Girls (TAAG) intervention to provide out-of-school physical activity programs for girls. The community agency survey is designed to assess agency capacity to provide physical activity programs for girls, including resources, programs, and partnerships. Most agency respondents (n = 138) report operations during after-school hours, adequate facilities, and program options for girls, although most are sport oriented. Agency resources and programming vary considerably across the six TAAG field sites. Many agencies report partnerships, some involving schools, although not necessarily related to physical activity. Implications for the TAAG intervention are presented. PMID:16397156

  19. Invasion triangle: an organizational framework for species invasion

    PubMed Central

    Perkins, Lora B; Leger, Elizabeth A; Nowak, Robert S

    2011-01-01

    Species invasion is a complex, multifactor process. To encapsulate this complexity into an intuitively appealing, simple, and straightforward manner, we present an organizational framework in the form of an invasion triangle. The invasion triangle is an adaptation of the disease triangle used by plant pathologists to help envision and evaluate interactions among a host, a pathogen, and an environment. Our modification of this framework for invasive species incorporates the major processes that result in invasion as the three sides of the triangle: (1) attributes of the potential invader; (2) biotic characteristics of a potentially invaded site; and (3) environmental conditions of the site. The invasion triangle also includes the impact of external influences on each side of the triangle, such as climate and land use change. This paper introduces the invasion triangle, discusses how accepted invasion hypotheses are integrated in this framework, describes how the invasion triangle can be used to focus research and management, and provides examples of application. The framework provided by the invasion triangle is easy to use by both researchers and managers and also applicable at any level of data intensity, from expert opinion to highly controlled experiments. The organizational framework provided by the invasion triangle is beneficial for understanding and predicting why species are invasive in specific environments, for identifying knowledge gaps, for facilitating communication, and for directing management in regard to invasive species. PMID:22393528

  20. The role and value of conservation agency research.

    PubMed

    Roux, Dirk J; Kingsford, Richard T; McCool, Stephen F; McGeoch, Melodie A; Foxcroft, Llewellyn C

    2015-06-01

    Governments charge their conservation agencies to safeguard biodiversity through protected areas and threat mitigation. Increasingly, conservation management and policy need to be supported by rigorous evidence provided by science. As such, institutional arrangements should consider and enable effective scientific research and information dissemination. What role can in-house agency research play in responding to this challenge? We examined the research capabilities of three conservation agencies from Australia, South Africa, and United States. Seven indicators were used to characterize the reliability and relevance of agency research. We found similarities among agencies in their patterns of peer-reviewed publication, cultures of research collaboration, and tendencies to align research with organizational objectives. Among the many and diverse activities that constitute the role of a contemporary agency researcher, we emphasize two key research dimensions: reliability, achieved through peer-reviewed research output, and relevance, achieved through active stakeholder engagement. Amid increasingly challenging realities for conservation of ecosystems, agency science functions are vital to providing the evidence base required for effective management and policy development.

  1. The Role and Value of Conservation Agency Research

    NASA Astrophysics Data System (ADS)

    Roux, Dirk J.; Kingsford, Richard T.; McCool, Stephen F.; McGeoch, Melodie A.; Foxcroft, Llewellyn C.

    2015-06-01

    Governments charge their conservation agencies to safeguard biodiversity through protected areas and threat mitigation. Increasingly, conservation management and policy need to be supported by rigorous evidence provided by science. As such, institutional arrangements should consider and enable effective scientific research and information dissemination. What role can in-house agency research play in responding to this challenge? We examined the research capabilities of three conservation agencies from Australia, South Africa, and United States. Seven indicators were used to characterize the reliability and relevance of agency research. We found similarities among agencies in their patterns of peer-reviewed publication, cultures of research collaboration, and tendencies to align research with organizational objectives. Among the many and diverse activities that constitute the role of a contemporary agency researcher, we emphasize two key research dimensions: reliability, achieved through peer-reviewed research output, and relevance, achieved through active stakeholder engagement. Amid increasingly challenging realities for conservation of ecosystems, agency science functions are vital to providing the evidence base required for effective management and policy development.

  2. Discovery: Triangle Inequality Revisited

    ERIC Educational Resources Information Center

    de Mestre, Neville

    2016-01-01

    As outlined in the paper "The 20 Matchstick Triangle Challenge: An Activity to Foster Reasoning and Problem Solving" by Pat Graham and Helen Chick [EJ1093090], an incredibly useful set of information about the mathematical ability of your students will be revealed. You can look at the way your students try to solve the 20 matchsticks…

  3. Suicide Prevention Triangle.

    ERIC Educational Resources Information Center

    Cutter, Fred

    This manual provides resource tools and strategies to enhance the suicide prevention capabilities of health professionals and the health care setting in which care is provided. In the first section, terms are defined and the suicide prevention triangle model is described. Applications of the model and good practices for suicide prevention in any…

  4. THE ENVIRONMENTAL PROTECTION AGENCY'S WATERSHED MANAGEMENT RESEARCH PROGRAM: AN OVERVIEW

    EPA Science Inventory

    The Environmental Protection Agency (EPA) has directed much attention to watersheds and water quality during its tenure as the United States Federal Agency charged with protection of human health and the environment. Watershed research as a vehicle to understand the interaction ...

  5. Enjoyment of Euclidean Planar Triangles

    ERIC Educational Resources Information Center

    Srinivasan, V. K.

    2013-01-01

    This article adopts the following classification for a Euclidean planar [triangle]ABC, purely based on angles alone. A Euclidean planar triangle is said to be acute angled if all the three angles of the Euclidean planar [triangle]ABC are acute angles. It is said to be right angled at a specific vertex, say B, if the angle ?ABC is a right angle…

  6. Pascal's Infinite Set of Triangles

    ERIC Educational Resources Information Center

    Skurnick, Ronald

    2005-01-01

    Pascal's Triangle is, without question, the most well-known triangular array of numbers in all of mathematics. A well-known algorithm for constructing Pascal's Triangle is based on the following two observations. The outer edges of the triangle consist of all 1's. Each number not lying on the outer edges is the sum of the two numbers above it in…

  7. An Overview Of Current Research At The Environmental Protection Agency

    EPA Science Inventory

    The purpose of this presentation is to provide an overview of the current research at the Environmental Protection Agency. FOR FURTHER INFORMATION, CONTACT ROGER B. YEARDLEY, JR., LAND REMEDIATION AND POLLUTION CONTROL DIVISION, 513-569-7548.

  8. Defense Advanced Research Projects Agency Strategic Plan

    DTIC Science & Technology

    2007-02-01

    22 Figure 22: Warfighters in a DARPA Training Superiority program classroom ...technical Breakthroughs in DARPA or other research programs; program managers, it is easy to make decisions. This managemet style is essential to...Superiority program classroom . emotional involvement of multi-user computer games. 3.4. Advanced Manned and Unmanned Systems DARPA is working with the Army

  9. RESEARCH PROGRAMS AT THE ECOSYSTEMS RESEARCH DIVISION, U.S. ENVIRONMENTAL PROTECTION AGENCY

    EPA Science Inventory

    This presentation presents information on the research programs at the Ecosystems Research Division (ERD) of the U.S. Environmental Protection Agency located in Athens, Georgia. The presentation gives an overview of the Agency, laws and regulations that the Agency operates under,...

  10. U.S. ENVIRONMENTAL PROTECTION AGENCY'S ECOLOGICAL RESEARCH STRATEGY

    EPA Science Inventory

    EPA's Office of Research and Development (ORD) has recently released a research strategy to guide its program to improve ecosystem risk assessment and risk management, which is one of the Agency's higheset priority search areas (http://www.epa.gov/ORD/WebPubs/fmal/eco.pdf). It is...

  11. Agency Researchers' Perception of the Users and Uses of Copy Research.

    ERIC Educational Resources Information Center

    Reid, Leonard N.; Salmon, Charles T.

    A survey of 30 advertising agency researchers sought to determine (1) whether there are differences between agency researchers' perception of who benefits most from copy research and who should benefit most, and (2) whether there are differences between their perception of how copy research is used and how it should be used. Consistent with…

  12. COMPUTATIONAL TOXICOLOGY: FRAMEWORK, PARTNERSHIPS, AND PROGRAM DEVELOPMENT. SEPTEMBER 29-30, 2003, RESEARCH TRIANGLE PARK, NORTH CAROLINA

    EPA Science Inventory

    Abstract

    The EPA sponsored a workshop held September 29-30, 2003 at the EPA in RTP that was focused on a proposal entitled "A Framework for a Computational Toxicology Research Program in ORD" (www.epa.gov/computox). Computational toxicology is a new research ini...

  13. Counting Heron Triangles with Constraints

    DTIC Science & Technology

    2013-01-25

    A3 INTEGERS 13 (2013) COUNTING HERON TRIANGLES WITH CONSTRAINTS Pantelimon Stănică Applied Mathematics, Naval Postgraduate School, Monterey...12, Revised: 10/12/12, Accepted: 1/13/13, Published: 1/25/13 Abstract Heron triangles have the property that all three of their sides as well as their...area are positive integers. In this paper, we give some estimates for the number of Heron triangles with two of their sides fixed. We provide a

  14. Workshop report: Identifying opportunities for global integration of toxicogenomics databases, 26-27 June 2013, Research Triangle Park, NC, USA.

    PubMed

    Hendrickx, Diana M; Boyles, Rebecca R; Kleinjans, Jos C S; Dearry, Allen

    2014-12-01

    A joint US-EU workshop on enhancing data sharing and exchange in toxicogenomics was held at the National Institute for Environmental Health Sciences. Currently, efficient reuse of data is hampered by problems related to public data availability, data quality, database interoperability (the ability to exchange information), standardization and sustainability. At the workshop, experts from universities and research institutes presented databases, studies, organizations and tools that attempt to deal with these problems. Furthermore, a case study showing that combining toxicogenomics data from multiple resources leads to more accurate predictions in risk assessment was presented. All participants agreed that there is a need for a web portal describing the diverse, heterogeneous data resources relevant for toxicogenomics research. Furthermore, there was agreement that linking more data resources would improve toxicogenomics data analysis. To outline a roadmap to enhance interoperability between data resources, the participants recommend collecting user stories from the toxicogenomics research community on barriers in data sharing and exchange currently hampering answering to certain research questions. These user stories may guide the prioritization of steps to be taken for enhancing integration of toxicogenomics databases.

  15. What Is "Agency"? Perspectives in Science Education Research

    ERIC Educational Resources Information Center

    Arnold, Jenny; Clarke, David John

    2014-01-01

    The contemporary interest in researching student agency in science education reflects concerns about the relevance of schooling and a shift in science education towards understanding learning in science as a complex social activity. The purpose of this article is to identify problems confronting the science education community in the development…

  16. The Bermuda Triangle of Education.

    ERIC Educational Resources Information Center

    Bertrand, Yves

    The pedagogical triangle of teacher, learner, and subject matter has in its center a fourth element: the communication system. Each feature of the pedagogical triangle, and the communication system as well, relies on a very important cultural component. Problems occur when communication processes in a classroom are fragmented and related to…

  17. An Alternative Triangle Area Strategy

    ERIC Educational Resources Information Center

    Shockey, T. L.; Zhang, P.; Brosnan, P.

    2016-01-01

    We explore the mathematics engagement of a group of mathematics coaches, working in k-12 mathematics education. The incenter of a triangle is used to derive an alternative formula for the area of a triangle inspired by Usiskin, Peressini, Marhisotto, and Stanley (2002).

  18. Water and bed-material quality of selected streams and reservoirs in the Research Triangle area of North Carolina, 1988-94

    USGS Publications Warehouse

    Oblinger, C.J.; Treece, M.W.

    1996-01-01

    The Triangle Area Water Supply Monitoring Project was formed by a consortium of local governments and governmental agencies in cooperation with the U.S. Geological Survey to supplement existing data on conventional pollutants, nutrients, and metals to enable eventual determination of long-term trends; to examine spatial differences among water supplies within the region, especially differences between smaller upland sources, large multipurpose reservoirs, and run-of-river supplies; to provide tributary loading inlake data for predictive modeling of Falls of the Neuse and B. Everett Jordan reservoirs; and to establish a database for synthetic organic compounds. Water-quality sampling began in October 1988 at 35 sites located on area run-of-river and reservoir water supplies and their tributaries. Sampling has continued through 1994. Samples were analyzed for major ions, nutrients, trace metals, pesticides, and semivolatile and volatile organic compounds. Monthly concentration data, high-flow concentration data, and data on daily mean streamflow at most stream sites were used to calculate loadings of nitrogen, phosphorus, suspended sediment, and trace metals to reservoirs. Stream and lake sites were assigned to one of five site categories-- (1) rivers, (2) large multipurpose reservoirs, (3) small water-supply reservoirs, (4) streams below urban areas and wastewater-treatment plants, and (5) headwater streams--according to general site characteristics. Concentrations of nitrogen species, phosphorus species, and selected trace metals were compared by site category using nonparametric analysis of variance techniques and qualitatively (trace metals). Wastewater-treatment plant effluents and urban runoff had a significant impact on water quality compared to reservoirs and headwater streams. Streams draining these areas had more mineralized water than streams draining undeveloped areas. Moreover, median nitrogen and nitrite plus nitrate concentrations were significantly

  19. Conserving biodiversity: A research agenda for development agencies

    SciTech Connect

    Not Available

    1992-01-01

    This book was written to assist development agencies in identifying the kinds of biological, economic and cultural research that need to be funding to provide an information base for conserving biodiversity. The presentation is concise and non-technical with summaries of data and ideas relevant to biodiversity. The human role in accelerating biotic loss is discussed, and stragies for sustainable land use and restoration of degraded lands are among several topics.

  20. The quantum electrical triangle.

    PubMed

    Gallop, John

    2005-09-15

    The past 35 years have seen the development of an unexpected plethora of quantum electrical standards based on just two fundamental constants, e and h. First came a voltage standard based on the Josephson a.c. effect, in terms of which most maintained primary standards of voltage are defined. This was followed a decade later by the quantized Hall effect, based on the von Klitzing constant which allows the ohm to be maintained very precisely. It became clear 20 years ago that there is also a possible quantum current standard. This third standard has yet to play a full part in practical electrical metrology. However, recent developments suggest that there are many different possible manifestations in which such a current standard might be realized. The three quantum standards, taken together, define the quantum electrical triangle of standards which would allow the units to be realized in terms of different combinations of e and h. We summarize the very different physics behind the three standards, reviewing the present state of development in all three. Implications for the future are also considered, especially relating to ultra-low temperature, nanoscale and truly quantum mechanical versions of the standards.

  1. Heron's Remarkable Triangle Area Formula.

    ERIC Educational Resources Information Center

    Oliver, Bernard M.

    1993-01-01

    Presents Heron's original geometric proof to his formula to calculate the area of a triangle. Attempts to improve on this proof by supplying a chain of reasoning that leads quickly from premises to the conclusion. (MDH)

  2. Triangles: Shapes in Math, Science and Nature.

    ERIC Educational Resources Information Center

    Ross, Catherine Sheldrick

    This book examines everything having to do with the triangle. It begins with a basic definition of the triangle and continues with discussions on tetrahedrons, triangular prisms, and pyramid shapes. Some ideas addressed include how triangles are used to measure heights and distances, the importance of triangles to builders, Alexander Graham Bell's…

  3. Population Research. Inventory of Population Research Supported by Federal Agencies, Fiscal Year 1971.

    ERIC Educational Resources Information Center

    Corfman, Philip A.

    The Interagency Committee on Population Research has prepared this inventory in response to its functional goals of facilitating the exchange of information and coordinating the efforts of various Federal agencies concerned with research related to human population problems. Scope of the inventory encompasses a broad spectrum of research in the…

  4. Research and Evaluation at the Grant Wood Area Education Agency: A Regional Education Service Agency's Perspective.

    ERIC Educational Resources Information Center

    Herrick, Michael J.

    The Grant Wood Area Education Agency (GWAEA) is a regional education service agency centered in Cedar Rapids, Iowa, serving 39 public school districts and 36 private school districts in a seven-county area. Area education agencies (AEA) in Iowa are separate legal entities, not arms of the State Department or the school districts who decide to join…

  5. Nasal Soft-Tissue Triangle Deformities.

    PubMed

    Foda, Hossam M T

    2016-08-01

    The soft-tissue triangle is one of the least areas attended to in rhinoplasty. Any postoperative retraction, notching, or asymmetries of soft triangles can seriously affect the rhinoplasty outcome. A good understanding of the risk factors predisposing to soft triangle deformities is necessary to prevent such problems. The commonest risk factors in our study were the wide vertical domal angle between the lateral and intermediate crura, and the increased length of intermediate crus. Two types of soft triangle grafts were described to prevent and treat soft triangle deformities. The used soft triangle grafts resulted in an excellent long-term aesthetic and functional improvement.

  6. From concept to reality in implementing the Knowledge Triangle

    NASA Astrophysics Data System (ADS)

    Sjoer, Ellen; Nørgaard, Bente; Goossens, Marc

    2016-05-01

    The concept of Knowledge Triangle (KT) links together research, education and innovation and replaces the traditional 'one way' flow of knowledge, essentially from research to education, by a 'both ways' circular motion between all the corners of a triangle that, besides research and education, also includes innovation, the 'poor relation' of many universities. What are the main issues - barriers and drivers - and what could be done in order to make the concept of KT a strong reality in engineering education? In this paper, the authors intend to bring some answers by analysing three cases coming from actors operating at the three corners of the KT: students, academic staff and engineers in industry.

  7. Visualizing Elections Using Saari Triangles

    ERIC Educational Resources Information Center

    Alfaro, Ricardo; Han, Lixing; Schilling, Kenneth; Birgen, Mariah

    2010-01-01

    Students sometimes have difficulty calculating the result of a voting system applied to a particular set of voter preference lists. Saari triangles offer a way to visualize the result of an election and make this calculation easier in the case of several important voting systems.

  8. Multigrid for refined triangle meshes

    SciTech Connect

    Shapira, Yair

    1997-02-01

    A two-level preconditioning method for the solution of (locally) refined finite element schemes using triangle meshes is introduced. In the isotropic SPD case, it is shown that the condition number of the preconditioned stiffness matrix is bounded uniformly for all sufficiently regular triangulations. This is also verified numerically for an isotropic diffusion problem with highly discontinuous coefficients.

  9. Electronegativity and the Bond Triangle

    ERIC Educational Resources Information Center

    Meek, Terry L.; Garner, Leah D.

    2005-01-01

    The usefulness of the bond triangle for categorizing compounds of the main-group elements may be extended by the use of weighted average electronegativities to allow distinction between compounds of the same elements with different stoichiometries. In such cases a higher valency for the central atom leads to greater covalent character and the…

  10. Young Children's Conceptual Understanding of Triangle

    ERIC Educational Resources Information Center

    Dagli, Ümmühan Yesil; Halat, Erdogan

    2016-01-01

    This study explored 5-6 year-old children's conceptual understanding of one geometric shape, the triangle. It focused on whether children could draw a triangle from memory, and identify triangles of different types, sizes, and orientations. The data were collected from 82 children attending state preschool programs through a one-on-one interview,…

  11. Mechanical research and development activities at the European space agency

    NASA Astrophysics Data System (ADS)

    Stavrinidis, C.

    1996-02-01

    The research and development activities of satellite mechanical systems at ESA are driven by the requirements of future European space programmes, evolution of technologies resulting in new technical capabilities, and the need to reduce the cost, to increase the reliability of the European space effort and to improve the competitiveness of the European space industry. Technology developments require in many cases several years from initial concept to technological readiness, and this needs to be taken into account when considering satellite mission requirements. On the other hand difficulties encountered with the performance of existing mechanical system need to be resolved in a shorter timescale. Agency research and development activities of mechanical systems include: - new materials applications - design and manufacture techniques - structural dynamics and low disturbance environment - high precision reflectors - vibroacoustics - meteoroid and debris protection - tribology - pyrotechnics The activities take into account requirements of future space missions for science, earth observation, telecommunications, launchers, and microgravity applications. There are efforts to improve the competitive edge of space industry for example through the European Coordination for Space Standardization (ECSS).

  12. An overview of the Defence Research Agency photovoltaic programme

    NASA Technical Reports Server (NTRS)

    Goodbody, C.; Davies, M. A. H.

    1993-01-01

    The Defense Research Agency (DRA) has been active in the photovoltaic field since the early 1960's, then as the Royal Aircraft Establishment (RAE). The early work was aimed at developing silicon cells, solar panels, and light-weight flexible arrays in support of the 'UK' and 'X' series of British scientific and technology satellites, for which the RAE was either the design authority or technical advisor. The X3 satellite - Prospero, launched in 1971 test flew 50 micron wrap-round silicon cells. The X4 satellite - Miranda, launched in 1974 test flew a deployable flexible silicon array which was developed at the DRA. During this period an extensive range of test equipment was developed which was maintained, modernized, and extended to date. Following a period of reduced activity in the late 1970's and early 1980's the current program evolved. The programs that have been undertaken since 1983 are briefly summarized. These range from various cell developments, new types of coverglasses, flight experiments, radiation testing, primary cell calibration, and environmental testing. The current photovoltaic program is mainly funded by the UK Ministry of Defence and by the Department of Trade and Industry through the British National Space Center (BNSC). The program is aimed at research and development, both internally and with industry, to meet the customer's technical objectives and requirements and to provide them with technical advice. The facilities are also being used on contract work for various national and international organizations.

  13. An overview of the Defence Research Agency photovoltaic programme

    NASA Astrophysics Data System (ADS)

    Goodbody, C.; Davies, M. A. H.

    1993-05-01

    The Defense Research Agency (DRA) has been active in the photovoltaic field since the early 1960's, then as the Royal Aircraft Establishment (RAE). The early work was aimed at developing silicon cells, solar panels, and light-weight flexible arrays in support of the 'UK' and 'X' series of British scientific and technology satellites, for which the RAE was either the design authority or technical advisor. The X3 satellite - Prospero, launched in 1971 test flew 50 micron wrap-round silicon cells. The X4 satellite - Miranda, launched in 1974 test flew a deployable flexible silicon array which was developed at the DRA. During this period an extensive range of test equipment was developed which was maintained, modernized, and extended to date. Following a period of reduced activity in the late 1970's and early 1980's the current program evolved. The programs that have been undertaken since 1983 are briefly summarized. These range from various cell developments, new types of coverglasses, flight experiments, radiation testing, primary cell calibration, and environmental testing. The current photovoltaic program is mainly funded by the UK Ministry of Defence and by the Department of Trade and Industry through the British National Space Center (BNSC). The program is aimed at research and development, both internally and with industry, to meet the customer's technical objectives and requirements and to provide them with technical advice. The facilities are also being used on contract work for various national and international organizations.

  14. Exit Times from Equilateral Triangles

    SciTech Connect

    Alabert, Aureli Farre, Merce Roy, Rahul

    2003-12-15

    In this paper we obtain a closed form expression of the expected exit time of a Brownian motion from equilateral triangles. We consider first the analogous problem for a symmetric random walk on the triangular lattice and show that it is equivalent to the ruin problem of an appropriate three player game. A suitable scaling of this random walk allows us to exhibit explicitly the relation between the respective exit times. This gives us the solution of the related Poisson equation.

  15. Perspectives: A Journal of Research and Opinion about Educational Service Agencies, 1995-1998.

    ERIC Educational Resources Information Center

    Keane, William G., Ed.

    1998-01-01

    This document consists of the first four volumes of the annual serial publication "Perspectives: A Journal of Research and Opinion about Educational Service Agencies." Educational service agencies (ESAs) have various names and characteristics across states, but all provide services to local education agencies in a specific geographic region. ESAs…

  16. "I'll Take Care of the Flowers!" Researching Agency through Initiatives across Different Learning Environments

    ERIC Educational Resources Information Center

    Kangas, Marjaana; Kopisto, Kaisa; Löfman, Krista; Salo, Laura; Krokfors, Leena

    2017-01-01

    This case study examined how the agency of a fifth-grade pupil appeared across different learning environments in the primary school context. In this study, agency is defined as the initiatives taken by an individual in interactive situations. The research question is: how does a pupil's agency manifest and vary through taking initiatives across…

  17. 75 FR 31450 - Agency for Healthcare Research and Quality; Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-03

    ... HUMAN SERVICES Agency for Healthcare Research and Quality; Notice of Meeting In accordance with section... experts in fields related to health care research who are invited by the Agency for Healthcare Research...: Optimizing Prevention and Healthcare Management for Complex Patients (R21) applications are to be...

  18. Research Collaboration with State Environment and Public Health Agencies

    EPA Pesticide Factsheets

    EPA Reseach staff holds Tools Cafes for specific Agency partners and stakeholders. At these Tools Cafes, we share and demonstrate tools, talk with users and potential users, and solicit feedback to continually improve and update our resources.

  19. Sample Identification at Scale - Implementing IGSN in a Research Agency

    NASA Astrophysics Data System (ADS)

    Klump, J. F.; Golodoniuc, P.; Wyborn, L. A.; Devaraju, A.; Fraser, R.

    2015-12-01

    Earth sciences are largely observational and rely on natural samples, types of which vary significantly between science disciplines. Sharing and referencing of samples in scientific literature and across the Web requires the use of globally unique identifiers essential for disambiguation. This practice is very common in other fields, e.g. ISBN in publishing, doi in scientific literature, etc. In Earth sciences however, this is still often done in an ad-hoc manner without the use of unique identifiers. The International Geo Sample Number (IGSN) system provides a persistent, globally unique label for identifying environmental samples. As an IGSN allocating agency, CSIRO implements the IGSN registration service at the organisational scale with contributions from multiple research groups. Capricorn Distal Footprints project is one of the first pioneers and early adopters of the technology in Australia. For this project, IGSN provides a mechanism for identification of new and legacy samples, as well as derived sub-samples. It will ensure transparency and reproducibility in various geochemical sampling campaigns that will involve a diversity of sampling methods. Hence, diverse geochemical and isotopic results can be linked back to the parent sample, particularly where multiple children of that sample have also been analysed. The IGSN integration for this project is still in early stages and requires further consultations on the governance mechanisms that we need to put in place to allow efficient collaboration within CSIRO and collaborating partners on the project including naming conventions, service interfaces, etc. In this work, we present the results of the initial implementation of IGSN in the context of the Capricorn Distal Footprints project. This study has so far demonstrated the effectiveness of the proposed approach, while maintaining the flexibility to adapt to various media types, which is critical in the context of a multi-disciplinary project.

  20. 75 FR 39519 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-09

    ... describes the nature of the collection and the estimated burden and cost. DATES: Additional comments may be... Division (D243- 05), Measurement Policy Group, Environmental Protection Agency, Research Triangle Park..., quarterly, and semiannually. Estimated Total Annual Hour Burden: 2,017. Estimated Total Annual Cost:...

  1. Training Future Science Librarians: A Successful Partnership between Academia and the United States Environmental Protection Agency.

    ERIC Educational Resources Information Center

    Roland, Kristen Conahan

    2000-01-01

    Describes a partnership between the School of Information and Library Science at the University of North Carolina (Chapel Hill) and the Environmental Protection Agency library in Research Park Triangle that provides the opportunity for master's level students to acquire practical experience working in a science library while taking classes.…

  2. AN OVERVIEW OF EPA'S COMBUSTION RESEARCH PROGRAM

    EPA Science Inventory

    The Air Pollution Technology Branch (APTB) of the U.S. Environmental Protection Agency's National Risk Management Research Laboratory, located in Research Triangle Park, North Carolina, performs a variety of combustion related research. Currently APTB's focus is on mercury from c...

  3. Enjoyment of Euclidean planar triangles

    NASA Astrophysics Data System (ADS)

    Srinivasan, V. K.

    2013-09-01

    This article adopts the following classification for a Euclidean planar ?, purely based on angles alone. A Euclidean planar triangle is said to be acute angled if all the three angles of the Euclidean planar ? are acute angles. It is said to be right angled at a specific vertex, say B, if the angle ? is a right angle with the two remaining angles as acute angles. It is said to be obtuse angled at the vertex B if ? is an obtuse angle, with the two remaining angles as acute angles. In spite of the availability of numerous text books that contain our human knowledge of Euclidean plane geometry, softwares can offer newer insights about the characterizations of planar geometrical objects. The author's characterizations of triangles involve points like the centroid G, the orthocentre H of the ?, the circumcentre S of the ?, the centre N of the nine-point circle of the ?. Also the radical centre rc of three involved diameter circles of the sides BC, AC and AB of the ? provides a reformulation of the orthocentre, resulting in an interesting theorem, dubbed by the author as 'Three Circles Theorem'. This provides a special result for a right-angled ?, again dubbed by the author as 'The Four Circles Theorem'. Apart from providing various inter connections between the geometrical points, the relationships between shapes of the triangle and the behaviour of the points are reasonably explored in this article. Most of these results will be useful to students that take courses in Euclidean Geometry at the college level and the high school level. This article will be useful to teachers in mathematics at the high school level and the college level.

  4. 48 CFR 312.202(d) - Market research and description of agency need.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Market research and description of agency need. 312.202(d) Section 312.202(d) Federal Acquisition Regulations System HEALTH AND... for the Acquisition of Commercial Items 312.202(d) Market research and description of agency...

  5. Fibonacci's Triangle: A Vehicle for Problem Solving.

    ERIC Educational Resources Information Center

    Ouellette, Hugh

    1979-01-01

    A method for solving certain types of problems is illustrated by problems related to Fibonacci's triangle. The method involves pattern recognition, generalizing, algebraic manipulation, and mathematical induction. (MP)

  6. Federal Research: Peer Review Practices at Federal Science Agencies Vary.

    DTIC Science & Technology

    1999-03-01

    traditionally relied on independent reviews by peers. This report responds to your request that we study the peer review and other quality assurance processes...by peer review , (2) describe the federal government’s peer review policy, (3) describe the peer review practices of 12 federal agencies that conduct

  7. Structure, Agency, Complexity Theory and Interdisciplinary Research in Education Studies

    ERIC Educational Resources Information Center

    Smith, John A.

    2013-01-01

    This article argues that Education Studies needs to develop its existing interdisciplinarity understanding of structures and agencies by giving greater attention to the modern process theories of self-organisation in the physical, biological, psychological and social sciences, sometimes given the umbrella term "complexity theory". The…

  8. Government Agencies, Research Libraries, and Archival Sources in Urban Studies.

    ERIC Educational Resources Information Center

    Sable, Martin H.

    All levels of government influence urban studies because of legal jurisdictions and control of funding sources. Selected U.S. and Canadian federal level agencies and organizations are described in terms of their activities and involvement in urban affairs and their assistance, through grants and programs, to urban studies. Use of "The…

  9. Research Funding Cut in Proposed Environmental Protection Agency Budget

    NASA Astrophysics Data System (ADS)

    Balcerak, Ernie

    2013-04-01

    The Obama administration's proposed budget for fiscal year (FY) 2014 provides a total of 8.153 billion to the Environmental Protection Agency (EPA), a decrease of 296 million from FY 2012 spending (comparisons are to FY 2012 because final appropriations for 2013 were not available when the president released his proposed FY 2014 budget).

  10. Pascal's Triangle: 100% of the Numbers Are Even!

    ERIC Educational Resources Information Center

    Bhindi, Nayan; McMenamin, Justin

    2010-01-01

    Pascal's triangle is an arrangement of the binomial coefficients in a triangle. Each number inside Pascal's triangle is calculated by adding the two numbers above it. When all the odd integers in Pascal's triangle are highlighted (black) and the remaining evens are left blank (white), one of many patterns in Pascal's triangle is displayed. By…

  11. Parent-Child-Caregiver: The Attachment Triangle

    ERIC Educational Resources Information Center

    Caldwell, Bettye

    2005-01-01

    One of the most consistently recurring themes in great literature is the love triangle--Arthur and Guinevere and Lancelot, Tristan and Isolde and King Mark, and countless others. No one has produced an immortal story about it; but a love triangle plays itself out day after day in the lives of parents, young children, and caregivers. In this…

  12. What's Your Answer? Searching for Triangles

    ERIC Educational Resources Information Center

    Meagher, Michael S.; Edwards, Michael Todd; Özgün-Koca, S. Asli

    2016-01-01

    The article opens with a Geoboard Triangle Quest in this form: "How many noncongruent triangles can be constructed on a 4 × 4 geoboard? How do you know? Justify your answer with significant supporting work." The use of advanced digital technologies as tools for problem solving receives much attention in the methods classes if the…

  13. The "Right" Right Triangle on the Sphere

    ERIC Educational Resources Information Center

    Dickinson, William; Salmassi, Mohammed

    2008-01-01

    The question explored here is whether having a 90[degrees] angle is the most fruitful analogue in spherical geometry to right triangles in Euclidean geometry. A strong case is made for the property of a triangle with one angle equal to the sum of the other two.

  14. Fulfilling the Promise of the Learning Triangle

    ERIC Educational Resources Information Center

    Nichols, Paul

    2011-01-01

    The learning triangle described by Black, Wilson, and Yao (this issue) offers a powerful vision for improved student learning. Learning theory clearly plays a central role in the construct-centered approach presented by the learning triangle. But the assumption of such an important role requires Black et al. to devote corresponding care to the…

  15. A Note on Morley's Triangle Theorem

    ERIC Educational Resources Information Center

    Mueller, Nancy; Tikoo, Mohan; Wang, Haohao

    2012-01-01

    In this note, we offer a proof of a variant of Morley's triangle theorem, when the exterior angles of a triangle are trisected. We also offer a generalization of Morley's theorem when angles of an "n"-gon are "n"-sected. (Contains 9 figures.)

  16. Partitioning Pythagorean Triangles Using Pythagorean Angles

    ERIC Educational Resources Information Center

    Swenson, Carl E.; Yandl, Andre L.

    2012-01-01

    Inside any Pythagorean right triangle, it is possible to find a point M so that drawing segments from M to each vertex of the triangle yields angles whose sines and cosines are all rational. This article describes an algorithm that generates an infinite number of such points.

  17. Predictors of trust in the general science and climate science research of US federal agencies.

    PubMed

    Myers, Teresa A; Kotcher, John; Stenhouse, Neil; Anderson, Ashley A; Maibach, Edward; Beall, Lindsey; Leiserowitz, Anthony

    2016-03-08

    In this article, we focus on a key strategic objective of scientific organizations: maintaining the trust of the public. Using data from a nationally representative survey of American adults (n = 1510), we assess the extent to which demographic factors and political ideology are associated with citizens' trust in general science and climate science research conducted by US federal agencies. Finally, we test whether priming individuals to first consider agencies' general science research influences trust in their climate science research, and vice versa. We found that federal agencies' general science research is more trusted than their climate science research-although a large minority of respondents did not have an opinion-and that political ideology has a strong influence on public trust in federal scientific research. We also found that priming participants to consider general scientific research does not increase trust in climate scientific research. Implications for theory and practice are discussed.

  18. Market Research: Better Documentation Needed to Inform Future Procurements at Selected Agencies

    DTIC Science & Technology

    2014-10-01

    MARKET RESEARCH Better Documentation Needed to Inform Future Procurements at Selected Agencies Report to the...currently valid OMB control number. 1. REPORT DATE OCT 2014 2. REPORT TYPE 3. DATES COVERED 00-00-2014 to 00-00-2014 4. TITLE AND SUBTITLE Market ...2014 MARKET RESEARCH Better Documentation Needed to Inform Future Procurements at Selected Agencies is Why GAO Did This Study The federal

  19. The triangle compare method of hidden-line elimination

    NASA Technical Reports Server (NTRS)

    Price, C. R.

    1984-01-01

    An original algorithm which solves the classical computer graphics problem of eliminating those lines that should not be visible in a wire-frame model representation of a solid figure is presented. The basis of this Triangle Compare algorithm is that any polygon, regardless of its complexity, can be constructed from a set of triangles. In the Triangle Compare algorithm, once the triangles defining the figure are defined, they are ordered based on the nearness of each triangle to the viewer and stored in a linked list. The nearest triangle are compared to all succeeding triangles. The remaining parts of triangles are synthesized into other triangles and are added in order to the linked list. Subsequent reference triangles are provided by a traversal of the linked list. After the entire list is traversed and each triangle used as a reference, the resulting list is used for a final rendering with hidden lines removed via calligraphic MOVE and DRAW commands.

  20. USING SUBSURFACE TRANSPORT RESEARCH TO ACHIEVE AGENCY OUTCOMES

    EPA Science Inventory

    Gasoline leaks from underground storage tanks can cause ground water contamination because there are a number of organic chemicals in gasoline. These chemicals have varying properties that influence how far contamination extends from the release. Research on transport of these ...

  1. The Council of Youth Research: Critical Literacy and Civic Agency in the Digital Age

    ERIC Educational Resources Information Center

    Garcia, Antero; Mirra, Nicole; Morrell, Ernest; Martinez, Antonio; Scorza, D'Artagnan

    2015-01-01

    This article explores the relationship between critical literacy practice, digital media production, and civic agency in the Council of Youth Research, a youth participatory action research program in which Los Angeles high school students conduct research and create dynamic, multimedia presentations as leaders of a growing youth movement for…

  2. Create culture of integrity to defeat research fraud, funding agencies say.

    PubMed Central

    Lowry, F

    1995-01-01

    Widely reported cases of research fraud have eroded public confidence in scientific research. When funding agencies met last fall they underscored the importance of integrity in the research process and discussed steps that could be taken to promote it. PMID:7728704

  3. Are bilinear quadrilaterals better than linear triangles?

    SciTech Connect

    D`Azevedo, E.F.

    1993-08-01

    This paper compares the theoretical effectiveness of bilinear approximation over quadrilaterals with linear approximation over triangles. Anisotropic mesh transformation is used to generate asymptotically optimally efficient meshes for piecewise linear interpolation over triangles and bilinear interpolation over quadrilaterals. The theory and numerical results suggest triangles may have a slight advantage over quadrilaterals for interpolating convex data function but bilinear approximation may offer a higher order approximation for saddle-shaped functions on a well-designed mesh. This work is a basic study on optimal meshes with the intention of gaining insight into the more complex meshing problems in finite element analysis.

  4. Are Bilinear Quadrilaterals Better Than Linear Triangles?

    SciTech Connect

    D'Azevedo, E.F.

    1993-01-01

    This paper compares the theoretical effectiveness of bilinear approximation over quadrilaterals with linear approximation over triangles. Anisotropic mesh transformation is used to generate asymptotically optimally efficient meshes for piecewise linear interpolation over triangles and bilinear interpolation over quadrilaterals. For approximating a convex function, although bilinear quadrilaterals are more efficient, linear triangles are more accurate and may be preferred in finite element computations; whereas for saddle-shaped functions, quadrilaterals may offer a higher order approximation on a well-designed mesh. A surprising finding is different grid orientations may yield an order of magnitude improvement in approximation accuracy.

  5. The communication triangle: elements of an effective warning message

    SciTech Connect

    Vaught, C.; Brnich, M.J. Jr.; Mallett, L.

    2007-01-15

    The lack of good communication is a very real problem in mine emergencies. To counter communication breakdowns, researchers at the NIOSH Pittsburgh Research Laboratory developed the Emergency Communication Triangle. It is a training intervention designed to help those giving a warning to provide the right sort of information and those receiving a warning to ask the right questions. The Triangle has six ordered components with the first three considered most important. The Emergency Communication is packaged as a short safety talk to be given by supervisors at the start of a shift. It was first tested in 1998 with a group of 236 workers at an underground mine in Colorado, and proved effective. It was followed up in 2003 and again in 2004. Now, more than half the miners would report who was affected by an event, 60% would report in its severity, and 70% would say what had been done so far. 3 figs.

  6. Using benchmarking research to locate agency best practices for African American clients.

    PubMed

    Kondrat, Mary Ellen; Greene, Gilbert J; Winbush, Greta B

    2002-07-01

    Using a collective case study design with benchmarking features, research reported here sought to locate differences in agency practices between public mental health agencies in which African American clients were doing comparatively better on specific proxy outcomes related to community tenure, and agencies with less success on those same variables. A panel of experts from the Ohio Department of Mental Health matched four agencies on per capita spending, percentage of African American clients, and urban-intensive setting. The panel also differentiated agencies on the basis of racial group comparisons for a number of proxy variables related to successful community tenure. Two agencies had a record of success with this client group (benchmark agencies); and two were less successful based on the selected criteria (comparison agencies). Findings indicated that when service elements explicitly related to culture were similar across study sites, the characteristics that did appear to make a difference were aspects of organizational culture. Implications for administration practice and further research are discussed.

  7. Strengthening Peer Review in Federal Agencies that Support Education Research

    ERIC Educational Resources Information Center

    Towne, Lisa, Ed.; Fletcher, Jack M., Ed.; Wise, Lauress L., Ed.

    2004-01-01

    The focus of this report is on peer review as it is applied to the evaluation of proposals for federal funding of education research projects. The primary source of evidence used to set forth the report's conclusions and recommendations about this topic is a workshop convened in February 25-26, 2003 at the National Academies' Keck Center in…

  8. Activities: Golden Triangles, Pentagons, and Pentagrams.

    ERIC Educational Resources Information Center

    Miller, William A.; Clason, Robert G.

    1994-01-01

    Presents lesson plans for activities to introduce recursive sequences of polygons: golden triangles, regular pentagons, and pentagrams. The resulting number patterns involve Fibonacci sequences. Includes reproducible student worksheets. (MKR)

  9. The Effect of Internet-Based Education on Student Success in Teaching of 8th Grade Triangles Subject

    ERIC Educational Resources Information Center

    Kaya, Deniz; Kesan, Cenk; Izgiol, Dilek

    2013-01-01

    In the study, it was researched the effect of internet-based application on student success. Internet-based application was used at the teaching of triangles subject which is included in 8th grade units of triangles and algebra. The study was carried out over the internet with a computer software program: Vitamin Program. The study was carried out…

  10. The Efficacy of Police Interventions towards Resolution of Conflicts within the Illemi Triangle

    ERIC Educational Resources Information Center

    Mele, Joseph; Okoth, Pontian; Were, Edmond; Vundi, Silvia

    2016-01-01

    Intervention of security agencies is considered key to lasting peace. This is especially crucial to attaining peace in communities where socio-cultural beliefs advocate for revenge. The study sought to examine the efficacy of police interventions towards resolution of conflicts within the Illemi Triangle. The study adopted neo-realism and conflict…

  11. Heron Triangles with Two Fixed Sides

    DTIC Science & Technology

    2006-10-08

    in Number Theory. New York, Springer- Verlag, 290–291, 2000. [7] H. Harborth, A. Kemnitz. Fibonacci Triangles. In Applications of Fi- bonacci Numbers ...property that the lengths of all of their sides are Fibonacci numbers other than the triangle of sides (5, 5, 8). A different unsolved problem which...Power Sides. Am. Math. Monthly 110 (2003), 46–49. [13] K. Rosen. Elementary Number Theory and Its Applications . Addison Wesley, 512–514, 2005. [14] A

  12. Collaborative agency to support integrated care for children, young people and families: an action research study

    PubMed Central

    Stuart, Kaz

    2014-01-01

    Abstract Introduction Collaboration was legislated in the delivery of integrated care in the early 2000s in the UK. This research explored how the reality of practice met the rhetoric of collaboration. Theory The paper is situated against a theoretical framework of structure, agency, identity and empowerment. Collectively and contextually these concepts inform the proposed model of ‘collaborative agency’ to sustain integrated care. The paper brings sociological theory on structure and agency to the dilemma of collaboration. Methods Participative action research was carried out in collaborative teams that aspired to achieve integrated care for children, young people and families between 2009 and 2013. It was a part time, PhD study in collaborative practice. Results The research established that people needed to be able to be jointly aware of their context, to make joint decisions, and jointly act in order to deliver integrated services, and proposes a model of collaborative agency derived from practitioner’s experiences and integrated action research and literature on agency. The model reflects the effects of a range of structures in shaping professional identity, empowerment, and agency in a dynamic. The author proposes that the collaborative agency model will support integrated care, although this is, as yet, an untested hypothesis. PMID:24868192

  13. Management of information in a research and development agency

    NASA Technical Reports Server (NTRS)

    Keene, Wallace O.

    1990-01-01

    The NASA program for managing scientific and technical information (STI) is examined, noting the technological, managerial, educational, and legal aspects of transferring and disseminating information. A definition of STI is introduced and NASA's STI-related management programs are outlined. Consideration is given to the role of STI management in NASA mission programs, research efforts supporting the management and use of STI, STI program interfaces, and the Automated Information Management Program to eliminate redundant automation efforts in common administrative functions. The infrastructure needed to manage the broad base of NASA information and the interfaces between NASA's STI management and external organizations are described.

  14. The Software Industry in the Coffee Triangle of Colombia

    NASA Astrophysics Data System (ADS)

    Cuesta, Albeiro; Joyanes, Luis; López, Marcelo

    The so-called "Coffee Triangle" region is located in the Andean Region, in central Colombia, South America. This Andean Region is composed of the Departments of Caldas, Quindío and Risaralda. The Andean Region has been characterized by the production of coffee as a worldwide industry supported by high Quality and Research standards. These components have become the key bastions to compete in international markets. After the decline of the Coffee industry it is necessary to consider alternatives, supplemented by the success of the Software Industry at the global level. The strengthening of the Software Industry in the Coffee Triangle seeks to establish a productive alternative for regional growth in a visionary way, where knowledge, a fundamental input of the Software Industry, is emerging as one of the greatest assets present in this geographical area - Andean Region - of Colombia.

  15. On the Complexity of Digital Video Cameras in/as Research: Perspectives and Agencements

    ERIC Educational Resources Information Center

    Bangou, Francis

    2014-01-01

    The goal of this article is to consider the potential for digital video cameras to produce as part of a research agencement. Our reflection will be guided by the current literature on the use of video recordings in research, as well as by the rhizoanalysis of two vignettes. The first of these vignettes is associated with a short video clip shot by…

  16. State Education Agencies' Acquisition and Use of Research Knowledge for School Improvement

    ERIC Educational Resources Information Center

    Massell, Diane; Goertz, Margaret E.; Barnes, Carol A.

    2012-01-01

    Over the last two decades, state education agencies (SEAs) have been given considerable responsibilities for improving low-performing schools and for adopting research-based practices in doing so. Yet we know little about how and where these organizations search for, select, and use research and other kinds of evidence. We examined these questions…

  17. Emergency medicine public health research funded by federal agencies: progress and priorities.

    PubMed

    D'Onofrio, Gail; Goldstein, Amy B; Denisco, Richard A; Hingson, Ralph; Heffelfinger, James D; Post, Lori A

    2009-11-01

    The emergency department (ED) visit provides an opportunity to impact the health of the public throughout the entire spectrum of care, from prevention to treatment. As the federal government has a vested interest in funding research and providing programmatic opportunities that promote the health of the public, emergency medicine (EM) is prime to develop a research agenda to advance the field. EM researchers need to be aware of federal funding opportunities, which entails an understanding of the organizational structure of the federal agencies that fund medical research, and the rules and regulations governing applications for grants. Additionally, there are numerous funding streams outside of the National Institutes of Health (NIH; the primary federal health research agency). EM researchers should seek funding from agencies according to each agency's mission and aims. Finally, while funds from the Department of Health and Human Services (HHS) are an important source of support for EM research, we need to look beyond traditional sources and appeal to other agencies with a vested interest in promoting public health in EDs. EM requires a broad skill set from a multitude of medical disciplines, and conducting research in the field will require looking for funding opportunities in a variety of traditional and not so traditional places within and without the federal government. The following is the discussion of a moderated session at the 2009 Academic Emergency Medicine consensus conference that included panel discussants from the National Institutes of Mental Health, Drug Abuse, and Alcoholism and Alcohol Abuse and the Centers for Disease Control and Prevention (CDC). Further information is also provided to discuss those agencies and centers not represented.

  18. How research funding agencies support science integration into policy and practice: An international overview

    PubMed Central

    2014-01-01

    Background Funding agencies constitute one essential pillar for policy makers, researchers and health service delivery institutions. Such agencies are increasingly providing support for science implementation. In this paper, we investigate health research funding agencies and how they support the integration of science into policy, and of science into practice, and vice versa. Methods We selected six countries: Australia, The Netherlands, France, Canada, England and the United States. For 13 funding agencies, we compared their intentions to support, their actions related to science integration into policy and practice, and the reported benefits of this integration. We did a qualitative content analysis of the reports and information provided on the funding agencies’ websites. Results Most funding agencies emphasized the importance of science integration into policy and practice in their strategic orientation, and stated how this integration was structured. Their funding activities were embedded in the push, pull, or linkage/exchange knowledge transfer model. However, few program funding efforts were based on all three models. The agencies reported more often on the benefits of integration on practice, rather than on policy. External programs that were funded largely covered science integration into policy and practice at the end of grant stage, while overlooking the initial stages. Finally, external funding actions were more prominent than internally initiated bridging activities and training activities on such integration. Conclusions This paper contributes to research on science implementation because it goes beyond the two community model of researchers versus end users, to include funding agencies. Users of knowledge may be end users in health organizations like hospitals; civil servants assigned to decision making positions within funding agencies; civil servants outside of the Ministry of Health, such as the Ministry of the Environment; politicians deciding

  19. Science youth action research: Promoting critical science literacy through relevance and agency

    NASA Astrophysics Data System (ADS)

    Coleman, Elizabeth R.

    This three-article dissertation presents complementary perspectives on Science Youth Action Research (Sci-YAR), a K-12 curriculum designed to emphasize relevance and agency to promote youth's science learning. In Sci-YAR, youth conduct action research projects to better understand science-related issues in their lives, schools, or communities, while they simultaneously document, analyze, and reflect upon their own practices as researchers. The first article defines Sci-YAR and argues for its potential to enhance youth's participation as citizens in a democratic society. The second article details findings from a case study of youth engaged in Sci-YAR, describing how the curriculum enabled and constrained youth's identity work in service of critical science agency. The third article provides guidance to science teachers in implementing student-driven curriculum and instruction by emphasizing Sci-YAR's key features as a way to promote student agency and relevance in school science.

  20. USDA Human Nutrition Center, 1978-1982, and coordination of human nutrition research agencies.

    PubMed

    Combs, Gerald F

    2009-01-01

    Survey findings, confirming widespread malnutrition, led to the 1969 White House Conference on Food, Nutrition, and Health and increased funding of related Federal programs. In 1976, the ARS Administrator proposed to Congress a greatly expanded program for human nutrition research. This led to the development of USDA Human Nutrition Research Centers at Universities. Funding of these Centers resulted mainly from efforts of scientists and others from the states where Centers were located. USDA formed the Science and Education Administration (SEA) by merging several related research and education agencies, expecting to improve coordination and focus. Human nutrition research activities were placed in SEA under a USDA Human Nutrition Center in 1978, which was terminated in 1982 when SEA was disbanded. Coordination of human nutrition research within USDA and with other federal agencies required specific mechanisms. Within USDA, a subcommittee met regularly to exchange information and generate policy recommendations. Quarterly meetings of USDA Human Nutrition Center directors were held to enhance information exchange and cooperation. A Human Nutrition Board of Scientific Counselors was established to advise the Secretary regarding program direction and priorities. Human nutrition at the federal level was coordinated through the Interagency Committee on Human Nutrition Research (ICHNR). ICHNR devised a computerized database of ongoing federal food and nutrition research, developed a comprehensive 5-y research plan, and held biennial conferences for scientific presentations. Most important were the several interagency committees, which worked together to ensure that all federal agencies spoke with 1 voice. These committees functioned most effectively.

  1. LR: Compact connectivity representation for triangle meshes

    SciTech Connect

    Gurung, T; Luffel, M; Lindstrom, P; Rossignac, J

    2011-01-28

    We propose LR (Laced Ring) - a simple data structure for representing the connectivity of manifold triangle meshes. LR provides the option to store on average either 1.08 references per triangle or 26.2 bits per triangle. Its construction, from an input mesh that supports constant-time adjacency queries, has linear space and time complexity, and involves ordering most vertices along a nearly-Hamiltonian cycle. LR is best suited for applications that process meshes with fixed connectivity, as any changes to the connectivity require the data structure to be rebuilt. We provide an implementation of the set of standard random-access, constant-time operators for traversing a mesh, and show that LR often saves both space and traversal time over competing representations.

  2. Environmental Media Systems: Innovations at the U.S. Environmental Protection Agency's National Exposure Research Laboratory

    ERIC Educational Resources Information Center

    Costelloe-Kuehn, Brandon

    2012-01-01

    This multi-sited ethnography analyzes challenges and opportunities in the design and development of digital media systems in the Office of Research and Development (ORD) at the United States Environmental Protection Agency (EPA). Drawing heavily from interviews conducted over the course of three years, primarily with scientists at the ORD's…

  3. In-Service Teachers' Sense of Agency after Participation in a Research Master Course

    ERIC Educational Resources Information Center

    Impedovo, Maria Antonietta

    2016-01-01

    In this paper, we investigate the in-service teachers "sense of agency" after their participation in a research master course. A semi-structured interview was administrated to nine in-service science teachers, coming from three different African countries: Zimbabwe, Lesotho, and Burkina Faso. All of them attended a European master course…

  4. RESEARCH ON ENDOCRINE DISRUPTERS IN THE AQUATIC ENVIRONMENT BY THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

    EPA Science Inventory

    Research on Endocrine Disrupters in the Aquatic Environment by the United States Environmental Protection Agency (Abstract). Presented at the Endocrine Disrupters Workshop sponsored by the UK Department of Environment, Food and Rural Affairs, 8-9 September 2001, Weymouth, UK. 1 p...

  5. What Can Research into Graduate Employability Tell Us about Agency and Structure?

    ERIC Educational Resources Information Center

    Tholen, Gerbrand

    2015-01-01

    Traditionally theorists who have written about agency and structure have eschewed empirical research. This article uses the findings of an empirical study into graduate employability to inform the sociological debate on how they relate to each other. The study examined how Dutch and British final-year students approach the labour market right…

  6. Improved Lebesgue constants on the triangle

    NASA Astrophysics Data System (ADS)

    Heinrichs, Wilhelm

    2005-08-01

    New sets of points with improved Lebesgue constants in the triangle are calculated. Starting with the Fekete points a direct minimization process for the Lebesgue constant leads to better results. The points and corresponding quadrature weigths are explicitly given. It is quite surprising that the optimal points are not symmetric. The points along the boundary of the triangle are the 1D Gauss-Lobatto points. For all degrees, our points yield the smallest Lebesgue constants currently known. Numerical examples are presented, which show the improved interpolation properties of our nodes.

  7. State Education Agencies' Acquisition and Use of Research Knowledge in School Improvement Strategies. CPRE Research Report # RR-77

    ERIC Educational Resources Information Center

    Goertz, Margaret E.; Barnes, Carol; Massell, Diane; Fink, Ryan; Francis, Anthony Tuf

    2013-01-01

    Over the last 20 years, state education agencies (SEAs) have been given considerably more responsibilities for directing and guiding the improvement of low-performing schools. At the same time, federal policies strongly pressed SEAs to use research to design these supports. Very few studies have explored the SEA as an organization, or its role in…

  8. Editorial cognition, neurology, psychiatry: golden triangle or bermuda triangle?

    PubMed

    Baddeley, A D

    1996-08-01

    Cognitive neuropsychiatry occupies the comparatively neglected research region that lies between neurology, psychiatry, and cognitive psychology. Reasons for this neglect are discussed, together with arguments as to why it may be timely to focus on this intellectual no man's land.

  9. Building Intuitive Arguments for the Triangle Congruence Conditions

    ERIC Educational Resources Information Center

    Piatek-Jimenez, Katrina

    2008-01-01

    The triangle congruence conditions are a central focus to nearly any course in Euclidean geometry. The author presents a hands-on activity that uses straws and pipe cleaners to explore and justify the triangle congruence conditions. (Contains 4 figures.)

  10. Fibonacci-like sequences and generalized Pascal's triangles

    NASA Astrophysics Data System (ADS)

    Vincenzi, G.; Siani, S.

    2014-05-01

    The properties pertaining to diagonals of generalized Pascal's triangles are studied. Combinatorial relationships between Fibonacci-like sequences and Fibonacci sequence itself are determined, using the sequence of diagonals of generalized Pascal's triangle.

  11. Lattice QCD and the unitarity triangle

    SciTech Connect

    Andreas S Kronfeld

    2001-12-03

    Theoretical and computational advances in lattice calculations are reviewed, with focus on examples relevant to the unitarity triangle of the CKM matrix. Recent progress in semi-leptonic form factors for B {yields} {pi}/v and B {yields} D*lv, as well as the parameter {zeta} in B{sup 0}-{bar B}{sup 0} mixing, are highlighted.

  12. Similarity, Separability, and the Triangle Inequality.

    ERIC Educational Resources Information Center

    Tversky, Amos; Gati, Itamar

    1982-01-01

    The coincidence hypothesis predicts that dissimilarity between objects that differ on two separable dimensions is larger than predicted from their unidimensional differences on the basis of triangle inequality and segmental additivity. The coincidence hypothesis was supported in two-dimensional stimuli studies. (Author/CM)

  13. A Sacred Geometry of the Equilateral Triangle

    ERIC Educational Resources Information Center

    Doolan, E. P.

    2008-01-01

    In this article, we investigate the construction of spirals on an equilateral triangle and prove that these spirals are geometric. In further analysing these spirals we show that both the male (straight line segments) and female (curves) forms of the spiral exhibit exactly the same growth ratios and that these growth ratios are constant…

  14. Cactus: The Centres of a Triangle

    ERIC Educational Resources Information Center

    Hyde, Hartley

    2009-01-01

    This is the first of two articles which describe how to use "JavaSketchPad" to explore the centres of a triangle. This introductory exercise is suggested in the GSP "Workshop Guide". Students can use "JavaSketchPad Interactive Geometry" (JSP) at home at no cost. They are likely to impress their parents with their enthusiasm for geometry and all…

  15. Unitarity Triangles at BaBar

    SciTech Connect

    Martinez-Vidal, Fernando; /Valencia U., IFIC

    2011-11-23

    The BaBar experiment has used a variety of methods to determine the angles {alpha}, {beta}, and {gamma} of the Cabibbo-Kobayashi-Maskawa Unitarity Triangle, which give insight into the Standard Model description of CP violation in the quark sector of the electroweak interactions. Here we review the main experimental techniques and analyses, with emphasis in the most recent results.

  16. "What Happened to Our Sense of Justice?" Tracing Agency and Critical Engagement in a Youth Participatory Action Research Project

    ERIC Educational Resources Information Center

    Giraldo-García, Regina J.; Galletta, Anne

    2015-01-01

    Tracing the nature of critical engagement and agency among youth in a participatory action research (PAR) collective, the study attends to the manner in which critical engagement and agency developed over time for the youth researchers. The focus of the project was to conduct a survey among ninth grade students concerning their early high school…

  17. Career opportunities for college graduates with the Agricultural Research Service Agency of the U.S. Department of Agriculture

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The Agricultural Research Service is the principal scientific research agency of the U.S. Department of Agriculture. This agency employs more than 7,600 people working at various locations in the United States and U.S. territories. Careers for new scientists span a variety of disciplines such as c...

  18. Eliminating Health Disparities Through Transdisciplinary Research, Cross-Agency Collaboration, and Public Participation

    PubMed Central

    Spengler, Robert F.; Wagner, Robin M.; Melanson, Cindi; Skillen, Elizabeth L.; Mays, Robert A.; Heurtin-Roberts, Suzanne; Long, Judith A.

    2009-01-01

    Despite efforts to the contrary, disparities in health and health care persist in the United States. To solve this problem, federal agencies representing different disciplines and perspectives are collaborating on a variety of transdisciplinary research initiatives. The most recent of these initiatives was launched in 2006 when the Centers for Disease Control and Prevention's Office of Public Health Research and the Department of Health and Human Services’ Office of Minority Health brought together federal partners representing a variety of disciplines to form the Federal Collaboration on Health Disparities Research (FCHDR). FCHDR collaborates with a wide variety of federal and nonfederal partners to support and disseminate research that aims to reduce or eliminate disparities in health and health care. Given the complexity involved in eliminating health disparities, there is a need for more transdisciplinary, collaborative research, and facilitating that research is FCHDR's mission. PMID:19762652

  19. Food allergy--science and policy needs--The UK Food Standards Agency Research Programme.

    PubMed

    Buck, Joelle; Hattersley, Sue; Kimber, Ian

    2010-12-30

    Food allergy is a significant health issue in the UK, affecting between 1 and 2% of adults and 5 and 8% of children. The UK Food Standards Agency seeks to ensure the safety of food allergic consumers by providing them with information and guidance on food choices. Since 1995, with the aim of addressing important policy issues and improving the quality of the support and guidance available for food allergic consumers, the Agency (and before that the Ministry of Agriculture, Fisheries and Food), has had a programme of research dedicated to investigating the causes and mechanisms of food allergy and delivering benefits for UK consumers. In this paper, we outline some of the major scientific challenges that the programme has sought to address. We reflect on how the findings have been used as a basis for the development of sound, evidence-based policy and advice for UK consumers, and the current direction of research being supported by the programme.

  20. The environmental analysis of helicopter operations by Federal agencies: Current procedures and research needs

    NASA Technical Reports Server (NTRS)

    Smith, C. C.; Warner, D. B.; Dajani, J. S.

    1977-01-01

    The technical, economic, and environmental problems restricting commercial helicopter passenger operations are reviewed. The key considerations for effective assessment procedures are outlined and a preliminary model for the environmental analysis of helicopters is developed. It is recommended that this model, or some similar approach, be used as a common base for the development of comprehensive environmental assessment methods for each of the federal agencies concerned with helicopters. A description of the critical environmental research issues applicable to helicopters is also presented.

  1. A compressor designed for the energy research and development agency automotive gas turbine program

    NASA Technical Reports Server (NTRS)

    Galvas, M. R.

    1975-01-01

    A centrifugal compressor was designed for a gas turbine powered automobile as part of the Energy Research and Development Agency program to demonstrate emissions characteristics that meet 1978 standards with fuel economy and acceleration which are competitive with conventionally powered vehicles. A backswept impeller was designed for the compressor in order to attain the efficiency goal range required for the objectives of this program. Details of the design and method of flow analysis of the compressor are presented.

  2. Teaching and learning apheresis medicine: The Bermuda Triangle in Education.

    PubMed

    Crookston, Kendall P; Richter, Deana M

    2010-01-01

    Apheresis Medicine has evolved markedly due to an explosion of knowledge and technology, whereas the time available for training has shrunk as curricula have become increasingly overloaded. Apheresis teaching has inherited a strong clinical context where real patient problems are used in a hands-on environment. To optimize instruction, those involved in the education of apheresis professionals need to have (1) knowledge of how clinical laboratory medicine education has developed as a field, (2) an understanding of what is known from theory and research about how people learn, and (3) the skills to design teaching/learning activities in ways consistent with literature-based principles of adult education. These developments in education provide a context for curriculum projects currently underway by the American Society for Apheresis. Teachers must determine which competencies are central to the essence of a trained professional. Specific, robust, learning objectives targeted toward the development of higher levels of thinking, professional attitudes, and requisite skills are formulated to guide the learner toward mastering those competencies. Curriculum is developed for each objective, consisting of content and the best teaching/learning methods to help learners attain the objective. Appropriate assessment strategies are identified to determine whether the objective is being achieved. The integration of objectives, curriculum, and assessment creates The Bermuda Triangle of Education (Richter, The Circle of Learning and Bermuda Triangle in Education, University of New Mexico School of Medicine, 2004). When educators do not effectively navigate The Bermuda Triangle of Education, learning may disappear into the murky depths of confusion and apathy. When successfully navigated, the result will be a significant learning experience that leads to transformation through education.

  3. Multiple Internal Reflections in Acrylic Triangle Waveguide

    NASA Astrophysics Data System (ADS)

    Marzuki, A.; Setiawan, D.; Purwanto, H.; Yunianto, M.

    2016-11-01

    Theoretical and experimental study of light propagation in acrylic triangle waveguides has been studied theoretically and experimentally aimed to obtain a light cone which can tunnel and bring the light to a certain place. Numerical aperture of light cones which have a length of 7 cm but different cross-section area have been measured using he-Ne laser (λ=632 nm) and the results were compared to those obtained theoretically and no significant different was observed.

  4. The Kanizsa triangle illusion in foraging ants.

    PubMed

    Sakiyama, Tomoko; Gunji, Yukio-Pegio

    2016-01-01

    The Kanizsa triangle, wherein three Pac-Man configurations symmetrically face inwards, is a well-known illusion. By exposing foraging ants (Lasius niger) to Kanizsa-shaped honeydew solutions, we studied the origin of this illusion. More specifically, we examined whether foraging ants showed different movement reactions to local honeydew patterns formed by nestmates. This novel phenomenon could serve as an abstract model of the Kanizsa triangle illusion under the assumption that such an illusion could arise through the sum of each agent's limited global cognitions, because each agent could not perceive the entire subjective contours. Even a subjective consciousness consists of some parts which have no identical perception and could be an illusion. We succeeded in inducing foragers to move along the sides of a Kanizsa triangle when Pac-Man-shaped inducers were introduced. Furthermore, foragers appeared to form Y-shaped trajectories when dot-shaped or inverse Kanizsa inducers were used. Based on our findings, we propose an agent-based ant model that compares modelled behaviour with experimental phenomena. Our abstract model could be used to explain such cognitive phenomena for bottom-up processes, because ants cannot perceive the given subjective contours, instead simply move along the edges.

  5. Regulatory agencies' recommendations for medicine information leaflets: Are they in line with research findings?

    PubMed

    Young, Amber; Tordoff, June; Smith, Alesha

    2017-03-04

    The design of medicine information leaflets can determine whether a leaflet will be read or discarded by patients. It may also influence patients' ability to understand the information about their medicines within the leaflet. Researchers compared regulatory agencies' recommendations for medicine information leaflet design from New Zealand, the United Kingdom, Europe, and the United States against recommended good design principles to determine the appropriateness, comprehensiveness, and consistency of their recommendations. Recommendations for medicine information leaflets varied between the regulatory agencies. There were some inconsistencies between the recommendations and some gaps were identified. There was little regulatory guidance given to creators of medicine information leaflets in New Zealand compared to other countries, and this could lead to manufacturer-produced information leaflets of a poorer quality. Up-to-date and enforceable guidance for creators of medicine information leaflets should be provided in all countries to ensure they are of an appropriate standard.

  6. Federal agencies active in chemical industry-related research and development

    SciTech Connect

    1995-09-29

    The Energy Policy Act of 1992 calls for a program to further the commercialization of renewable energy and energy efficient technologies for the industrial sector.. The primary objective of the Office of Industrial Technologies Chemical Industry Team is to work in partnership with the US chemical industry to maximize economic, energy, and environmental benefits through research and development of innovative technologies. This document was developed to inventory organizations within the federal government on current chemical industry-related research and development. While an amount of funding or number of projects specifically relating to chemical industry research and development was not defined in all organizations, identified were about 60 distinct organizations representing 7 cabinet-level departments and 4 independent agencies, with research efforts exceeding $3.5 billion in fiscal year 1995. Effort were found to range from less than $500 thousand per year at the Departments of Agriculture and the Interior to over $100 million per year at the Departments of Commerce, Defense, Energy, and Health and Human Services and the National Aeronautics and Space Administration. The total number of projects in these programs exceeded 10,000. This document is complete to the extent that agencies volunteered information. Additions, corrections, and changes are encouraged and will be incorporated in future revisions.

  7. Secure Minutiae-Based Fingerprint Templates Using Random Triangle Hashing

    NASA Astrophysics Data System (ADS)

    Jin, Zhe; Jin Teoh, Andrew Beng; Ong, Thian Song; Tee, Connie

    Due to privacy concern on the widespread use of biometric authentication systems, biometric template protection has gained great attention in the biometric research recently. It is a challenging task to design a biometric template protection scheme which is anonymous, revocable and noninvertible while maintaining acceptable performance. Many methods have been proposed to resolve this problem, and cancelable biometrics is one of them. In this paper, we propose a scheme coined as Random Triangle Hashing which follows the concept of cancelable biometrics in the fingerprint domain. In this method, re-alignment of fingerprints is not required as all the minutiae are translated into a pre-defined 2 dimensional space based on a reference minutia. After that, the proposed Random Triangle hashing method is used to enforce the one-way property (non-invertibility) of the biometric template. The proposed method is resistant to minor translation error and rotation distortion. Finally, the hash vectors are converted into bit-strings to be stored in the database. The proposed method is evaluated using the public database FVC2004 DB1. An EER of less than 1% is achieved by using the proposed method.

  8. Nanotechnology applications and implications research supported by the US Environmental Protection Agency STAR grants program.

    PubMed

    Savage, Nora; Thomas, Treye A; Duncan, Jeremiah S

    2007-10-01

    Since 2002, the US Environmental Protection Agency (EPA) has been funding research on the environmental aspects of nanotechnology through its Science to Achieve Results (STAR) grants program. In total, more than $25 million has been awarded for 86 research projects on the environmental applications and implications of nanotechnology. In the applications area, grantees have produced promising results in green manufacturing, remediation, sensors, and treatment using nanotechnology and nanomaterials. Although there are many potential benefits of nanotechnology, there has also been increasing concern about the environmental and health effects of nanomaterials, and there are significant gaps in the data needed to address these concerns. Research performed by STAR grantees is beginning to address these needs.

  9. The Soft-Skills Learning Triangle: A Learning Model for Supporting Online Management & Leadership Development

    ERIC Educational Resources Information Center

    Adams, Jean

    2010-01-01

    The purpose of this paper is to present the Soft-skills Learning Triangle (SLT)--a model created to help coaches, mentors, and educators understand how web-technologies can be used to support management learning and soft-skills development. SLT emerged as part of a larger action-learning research project--the NewMindsets Management Education…

  10. Radioprotective drugs: a synopsis of current research and a proposed research plan for the Federal Emergency Management Agency. Final report

    SciTech Connect

    Hickman, R.; Anspaugh, L.

    1985-04-01

    FEMA has broad roles in the management of disasters potentially involving substantial amounts of radioactive contamination. These could be either peacetime or wartime disasters. A meeting was held in March 1985 to see if there are any research contributions that FEMA might reasonably make in the area of radioprotective drugs that would substantially enhance its ability to perform its mission. The other federal agencies presently sponsoring research in the field were represented at the meeting. A few selected researchers also participated to provide complementary viewpoints. Activities of a modest scale that FEMA might undertake were identified, as were larger scale activities that might be undertaken in the event of long-term, major funding-level increases for FEMA. 2 refs.

  11. Place-focused physical activity research, human agency, and social justice in public health: taking agency seriously in studies of the built environment.

    PubMed

    Blacksher, Erika; Lovasi, Gina S

    2012-03-01

    Built environment characteristics have been linked to health outcomes and health disparities. However, the effects of an environment on behavior may depend on human perception, interpretation, motivation, and other forms of human agency. We draw on epidemiological and ethical concepts to articulate a critique of research on the built environment and physical activity. We identify problematic assumptions and enumerate both scientific and ethical reasons to incorporate subjective perspectives and public engagement strategies into built environment research and interventions. We maintain that taking agency seriously is essential to the pursuit of health equity and the broader demands of social justice in public health, an important consideration as studies of the built environment and physical activity increasingly focus on socially disadvantaged communities. Attention to how people understand their environment and navigate competing demands can improve the scientific value of ongoing efforts to promote active living and health, while also better fulfilling our ethical obligations to the individuals and communities whose health we strive to protect.

  12. Dynamic Investigation of Triangles Inscribed in a Circle, Which Tend to an Equilateral Triangle

    ERIC Educational Resources Information Center

    Stupel, Moshe; Oxman, Victor; Sigler, Avi

    2017-01-01

    We present a geometrical investigation of the process of creating an infinite sequence of triangles inscribed in a circle, whose areas, perimeters and lengths of radii of the inscribed circles tend to a limit in a monotonous manner. First, using geometrical software, we investigate four theorems that represent interesting geometrical properties,…

  13. Stresses on Research and Education at Colleges and Universities: Institutional and Sponsoring Agency Responses. Report of a Collaborative Inquiry.

    ERIC Educational Resources Information Center

    National Science Foundation, Washington, DC. National Science Board.

    A 1994 meeting to discuss current stresses on the university research system brought together faculty and administrators from 13 research institutions, federal research-sponsoring agencies, members of Congress, and interested professional association and philanthropic foundation representatives. Participants acknowledged that the system of…

  14. Inspection methods for physical protection Task III review of other agencies' physical security activities for research reactors

    SciTech Connect

    1980-01-01

    In Task I of this project, the current Nuclear Regulatory Commission (NRC) position-on physical security practices and procedures at research reactors were reviewed. In the second task, a sampling of the physical security plans was presented and the three actual reactor sites described in the security plans were visited. The purpose of Task III is to review other agencies' physical security activities for research reactors. During this phase, the actions, procedures and policies of two domestic and two foreign agencies other than the NRC that relate to the research reactor community were examined. The agencies examined were: International Atomic Energy Agency; Canadian Atomic Energy Control Board; Department of Energy; and American Nuclear Insurers.

  15. EPA/ORD/RTP (Environmental Protection Agency, Office of Research and Development, Research Triangle Park) asbestos program support for the OTS (Office of Toxic Substances) asbestos-in-schools program. Final report

    SciTech Connect

    Beard, M.E.

    1986-03-01

    An overview of the EPA/ORD/RTP Asbestos program support for the OTS Asbestos-in-Schools Program is given. The program includes (1) a bulk sample asbestos analysis audit program, (2) an intercomparison of three measurement methods for airborne asbestos, (3) the development of audit materials for airborne asbestos measurement methods, and (4) the development of guidance for post-abatement asbestos air monitoring.

  16. Surface-surface interference detection for five-axis machine tool path planning based on triangle subdivision

    NASA Astrophysics Data System (ADS)

    Lin, Feng; Deng, Xiaolei

    2011-05-01

    Interference detection between surfaces of the part and the cutting tool is important in 5-axis tool path planning process. The purpose is to ensure the tool in an interference-free posture. There are many ways to detect interference; in this article, the subdivision method is applied. In this research, a simple but high efficiency algorithm based on triangle subdivision has been developed to deal with the two spatial triangles interference detection problems. In the proposed algorithm, only the three vertex coordinates of the two spatial triangles are given. The equation of the plane on which the triangle set lies is then generated, respectively. The intersection line equation can be obtained by combining the two equations. Because of the computer truncation error, errors must have been brought into the obtained line equation. A special method, which is not sensible with the errors of the line equations, is developed to determine whether the intersection line intersects with either of the two triangles. If both are yes, then the intersection points are calculated to further determine whether the two triangles interference by setting a faraway point on the intersection line. The algorithm is efficiency as it concerns only with the solution of two plane equations; and once the none-interference condition satisfies, the algorithm could break from any step.

  17. NOAA Inter-Agency Networking for Open Data and Research Results

    NASA Astrophysics Data System (ADS)

    de la Beaujardiere, J.

    2015-12-01

    The US National Oceanic and Atmospheric Administration (NOAA) generates tens of terabytes of data per day from hundreds of sensors on satellites, radars, aircraft, ships, and buoys, and from numerical models. With rare exceptions, all of these data should be made publicly accessible in a usable fashion. NOAA has long been both an advocate and a practitioner of open data, and has observations going back 150 years in its archives. The NOAA data management community therefore welcomed the White House mandates on Open Data and Open Research, and has striven to improve standardization internally and in collaboration with other organizations. This paper will summarize the state of inter-agency networking by NOAA, and will discuss future perspectives, in particular the need to achieve a state where the appropriate technology choices for particular classes of geospatial data are obvious and beyond discussion, and where data sharing and metadata creation are built into agency workflows for project planning, approval, and execution, so that instead of writing and enforcing mandates we can focus on actually using data from multiple sources to improve understanding and decision-making.

  18. The paradox of the universal triangle: Concepts, language, and prototypes.

    PubMed

    Lupyan, Gary

    2017-03-01

    For over 300 years, the humble triangle has served as the paradigmatic example of the problem of abstraction. How can we have the idea of a general triangle even though every experience with triangles is with specific ones? Classical cognitive science seemed to provide an answer in symbolic representation. With its easily enumerated necessary and sufficient conditions, the triangle would appear to be an ideal candidate for being represented in a symbolic form. I show that it is not. Across a variety of tasks-drawing, speeded recognition, unspeeded visual judgments, and inference-representations of triangles appear to be graded and context dependent. I show that using the category name "triangle" activates a more prototypical representation than using an arguably coextensive cue, "three-sided polygon". For example, when asked to draw "triangles" people draw more typical triangles than when asked to draw "three-sided polygons". Altogether, the results support the view that (even formal) concepts have a graded and flexible structure, which takes on a more prototypical and stable form when activated by category labels.

  19. Developing Formulas by Skipping Rows in Pascal's Triangle

    ERIC Educational Resources Information Center

    Buonpastore, Robert J.; Osler, Thomas J.

    2007-01-01

    A table showing the first thirteen rows of Pascal's triangle, where the rows are, as usual numbered from 0 to 12 is presented. The entries in the table are called binomial coefficients. In this note, the authors systematically delete rows from Pascal's triangle and, by trial and error, try to find a formula that allows them to add new rows to the…

  20. What Do You Find? Students Investigating Patterns in Pascal's Triangle

    ERIC Educational Resources Information Center

    Obara, Samuel

    2012-01-01

    In this paper, students used problem-solving skills to investigate what patterns exist in the Pascal triangle and incorporated technology using Geometer's Sketchpad (GSP) in the process. Students came up with patterns such as natural numbers, triangular numbers, and Fibonacci numbers. Although the patterns inherent in Pascal's triangle may seem…

  1. Homothetic Transformations and Geometric Loci: Properties of Triangles and Quadrilaterals

    ERIC Educational Resources Information Center

    Mammana, Maria Flavia

    2016-01-01

    In this paper, we use geometric transformations to find some interesting properties related with geometric loci. In particular, given a triangle or a cyclic quadrilateral, the locus generated by the centroid or by the orthocentre (for triangles) or by the anticentre (for cyclic quadrilaterals) when one vertex moves on the circumcircle of the…

  2. Some Unusual Expressions for the Inradius of a Triangle

    ERIC Educational Resources Information Center

    Osler, Thomas J.; Chandrupatla, Tirupathi R.

    2005-01-01

    Several formulae for the inradius of various types of triangles are derived. Properties of the inradius and trigonometric functions of the angles of Pythagorean and Heronian triangles are also presented. The entire presentation is elementary and suitable for classes in geometry, precalculus mathematics and number theory.

  3. Teaching Pascal's Triangle from a Computer Science Perspective

    ERIC Educational Resources Information Center

    Skurnick, Ronald

    2004-01-01

    Pascal's Triangle is named for the seventeenth-century French philosopher and mathematician Blaise Pascal (the same person for whom the computer programming language is named). Students are generally introduced to Pascal's Triangle in an algebra or precalculus class in which the Binomial Theorem is presented. This article, presents a new method…

  4. A Triangle Mesh Standardization Method Based on Particle Swarm Optimization

    PubMed Central

    Duan, Liming; Bai, Yang; Wang, Haoyu; Shao, Hui; Zhong, Siyang

    2016-01-01

    To enhance the triangle quality of a reconstructed triangle mesh, a novel triangle mesh standardization method based on particle swarm optimization (PSO) is proposed. First, each vertex of the mesh and its first order vertices are fitted to a cubic curve surface by using least square method. Additionally, based on the condition that the local fitted surface is the searching region of PSO and the best average quality of the local triangles is the goal, the vertex position of the mesh is regulated. Finally, the threshold of the normal angle between the original vertex and regulated vertex is used to determine whether the vertex needs to be adjusted to preserve the detailed features of the mesh. Compared with existing methods, experimental results show that the proposed method can effectively improve the triangle quality of the mesh while preserving the geometric features and details of the original mesh. PMID:27509129

  5. List of Researchers, Agencies, and Libraries Interested in Research Reports Pertaining to Occupational and Educational Mobility and Status Projection of Youth.

    ERIC Educational Resources Information Center

    Kuvlesky, William P.

    Developed and circulated at the request of the Rural Sociological Society's Research Committee on Educational and Occupational Behavior, this 1969 list of researchers, agencies, and libraries serves as a directory for those interested in research reports pertaining to occupational and educational mobility and status projections of youth. The 397…

  6. Potential Collaborative Research topics with Korea’s Agency for Defense Development

    SciTech Connect

    Farrar, Charles R.; Todd, Michael D.

    2012-08-23

    This presentation provides a high level summary of current research activities at the Los Alamos National Laboratory (LANL)-University of California Jacobs School of Engineering (UCSD) Engineering Institute that will be presented at Korea's Agency for Defense Development (ADD). These research activities are at the basic engineering science level with different level of maturity ranging from initial concepts to field proof-of-concept demonstrations. We believe that all of these activities are appropriate for collaborative research activities with ADD subject to approval by each institution. All the activities summarized herein have the common theme that they are multi-disciplinary in nature and typically involved the integration of high-fidelity predictive modeling, advanced sensing technologies and new development in information technology. These activities include: Wireless Sensor Systems, Swarming Robot sensor systems, Advanced signal processing (compressed sensing) and pattern recognition, Model Verification and Validation, Optimal/robust sensor system design, Haptic systems for large-scale data processing, Cyber-physical security for robots, Multi-source energy harvesting, Reliability-based approaches to damage prognosis, SHMTools software development, and Cyber-physical systems advanced study institute.

  7. "The mother of all black triangles" case.

    PubMed

    Clark, David

    2012-02-01

    Before the Bioclear matrix and a disciplined approach to composite treatment of black triangles, many treatments ended with significant compromise in periodontal health. Many cases debonded soon after placement. Others suffered problems with stain. Nonetheless, our patients are hopeful for a better solution. The interdental papilla serves as both a functional and aesthetic asset. Anatomically ideal interproximal composite shapes that are mirror smooth can serve as a predictable scaffold to regain this valuable gingival architecture. Clean enamel surfaces can be leveraged to permanently retain the restorations. However, the reader is cautioned that to attempt this elective procedure using no magnification, without a strict adherence to dentin detoxification with a blasting appliance, and using a flat matrix, nontreatment or referral is recommended. Our profession can change its thought processes, retrain its hands and expand its armamentarium to perform techniques that were previously impossible.

  8. Food supply depends on seagrass meadows in the coral triangle

    NASA Astrophysics Data System (ADS)

    Unsworth, Richard K. F.; Hinder, Stephanie L.; Bodger, Owen G.; Cullen-Unsworth, Leanne C.

    2014-09-01

    The tropical seascape provides food and livelihoods to hundreds of millions of people, but the support of key habitats to this supply remains ill appreciated. For fisheries and conservation management actions to help promote resilient ecosystems, sustainable livelihoods, and food supply, knowledge is required about the habitats that help support fisheries productivity and the consequences of this for food security. This paper provides an interdisciplinary case study from the coral triangle of how seagrass meadows provide support for fisheries and local food security. We apply a triangulated approach that utilizes ecological, fisheries and market data combined with over 250 household interviews. Our research demonstrates that seagrass associated fauna in a coral triangle marine protected area support local food supply contributing at least 50% of the fish based food. This formed between 54% and 99% of daily protein intake in the area. Fishery catch was found to significantly vary with respect to village (p < 0.01) with habitat configuration a probable driver. Juvenile fish comprised 26% of the fishery catch and gear type significantly influenced this proportion (<0.05). Limited sustainability of fishery practices (high juvenile catch and a 51% decline in CPUE for the biggest fishery) and poor habitat management mean the security of this food supply has the potential to be undermined in the long-term. Findings of this study have implications for the management and assessment of fisheries throughout the tropical seascape. Our study provides an exemplar for why natural resource management should move beyond biodiversity and consider how conservation and local food security are interlinked processes that are not mutually exclusive. Seagrass meadows are under sustained threat worldwide, this study provides evidence of the need to conserve these not just to protect biodiversity but to protect food security.

  9. The relationship between passibility, agency and social interaction and its relevance for research and pedagogy

    NASA Astrophysics Data System (ADS)

    Kirch, Susan A.; Ma, Jasmine Y.

    2016-12-01

    The interaction analysis presented by Kim and Roth examines nine students, their teachers, the learning task and materials in a mixed second and third grade science classroom during the school day. In the research narrative readers are introduced to two resourceful and creative groups of students as they work on a task assigned by their teacher—to cantilever a pizza box over the edge of a student desk. Readers are given glimpses (through images and transcripts) of the inventive ways each group solved the cantilever problem. Sometimes the children disregarded the design constraints, but even after compliance they managed to successfully solve the problem. The point of the learning task was not clearly stated, but readers are told the unit focused on investigating forces, forces in equilibrium, and structures as well as different forces (push, pull, etc.), properties of materials, and the relations between weight and balance while building structures. Kim and Roth were specifically interested in using this session to investigate and resolve the problem of learning as described by socio-cultural theorists as, how does a learner orient toward a learning outcome when they cannot do that until they have learned it? To answer this question Kim and Roth argued that learners (in engineering design) learn when and because: (1) they are open to be affected by the responses of materials to student action (i.e. student and material agency and physical touch) (2) their bodies are endowed with the capacity to be affected (i.e. passibility), and (3) knowledge and understanding emerge as and in social relations first. In their analysis, Kim and Roth argued that knowledge and knowing-how depend on these three universal processes. The authors further theorized the concept of passibility. Included in their theory of passibility was the claim that passibility is necessary for agency. After reading this paper we found we had many questions about Kim and Roth's analysis, context, and

  10. International Atomic Energy Agency (IAEA) Coordinated Research Projects on Structural Integrity of Reactor Pressure Vessels

    SciTech Connect

    Server, W. L.; Nanstad, Randy K

    2009-01-01

    The International Atomic Energy Agency (IAEA) has conducted a series of Coordinated Research Projects (CRPs) that have focused on irradiated reactor pressure vessel (RPV) steel fracture toughness properties and approaches for assuring structural integrity of RPVs throughout operating life. A series of nine CRPs have been sponsored by the IAEA, starting in the early 1970s, focused on neutron radiation effects on RPV steels. The purpose of the CRPs was to develop comparisons and correlations to test the uniformity of irradiated results through coordinated international research studies and data sharing. Consideration of dose rate effects, effects of alloying (nickel, manganese, silicon, etc.) and residual elements (eg., copper and phosphorus), and drop in upper shelf toughness are also important for assessing neutron embrittlement effects. The ultimate use of embrittlement understanding is assuring structural integrity of the RPV under current and future operation and accident conditions. Material fracture toughness is the key ingredient needed for this assessment, and many of the CRPs have focused on measurement and application of irradiated fracture toughness. This paper presents an overview of the progress made since the inception of the CRPs in the early 1970s. The chronology and importance of each CRP have been reviewed and put into context for continued and long-term safe operation of RPVs.

  11. Grouper: A Compact, Streamable Triangle Mesh Data Structure

    SciTech Connect

    Luffel, Mark; Gurung, Topraj; Lindstrom, Peter; Rossignac, Jarek

    2014-01-01

    Here, we present Grouper: an all-in-one compact file format, random-access data structure, and streamable representation for large triangle meshes. Similarly to the recently published SQuad representation, Grouper represents the geometry and connectivity of a mesh by grouping vertices and triangles into fixed-size records, most of which store two adjacent triangles and a shared vertex. Unlike SQuad, however, Grouper interleaves geometry with connectivity and uses a new connectivity representation to ensure that vertices and triangles can be stored in a coherent order that enables memory-efficient sequential stream processing. We also present a linear-time construction algorithm that allows streaming out Grouper meshes using a small memory footprint while preserving the initial ordering of vertices. In this construction, we show how the problem of assigning vertices and triangles to groups reduces to a well-known NP-hard optimization problem, and present a simple yet effective heuristic solution that performs well in practice. Our array-based Grouper representation also doubles as a triangle mesh data structure that allows direct access to vertices and triangles. Storing only about two integer references per triangle-i.e., less than the three vertex references stored with each triangle in a conventional indexed mesh format-Grouper answers both incidence and adjacency queries in amortized constant time. Our compact representation enables data-parallel processing on multicore computers, instant partitioning and fast transmission for distributed processing, as well as efficient out-of-core access. We demonstrate the versatility and performance benefits of Grouper using a suite of example meshes and processing kernels.

  12. ROLE OF VIBRATIONAL SPECTROSCOPY AT THE U.S. ENVIRONMENTAL PROTECTION AGENCY'S ENVIRONMENTAL RESEARCH LABORATORY IN ATHENS, GEORGIA

    EPA Science Inventory

    The Environmental Research Laboratory, U.S. Environmental Protection Agency, Athens GA, is best known by vibrational spectroscopists as the laboratory where much of the pioneering work on the development of a sensitive, real-time gas chromatograph/Fourier transform infrared syste...

  13. State Library Agencies and Member Libraries of the Association of Research Libraries. Final Report of Two Surveys.

    ERIC Educational Resources Information Center

    Chobot, Mary C.

    State Library Agencies (SLAs) and library members of the Association of Research Libraries (ARL) were surveyed to collect data from potential audiences for American Memory products to assist the planners for this Library of Congress (LC) project. This summary report briefly explains the purpose of the surveys; describes the survey methodology and…

  14. Promoting Supervisory Practice Change in Public Child Welfare: Lessons from University/Agency Collaborative Research in Four States

    ERIC Educational Resources Information Center

    Collins-Camargo, Crystal; Millar, Kenneth

    2012-01-01

    This article describes qualitative findings regarding lessons learned from research and demonstration projects in four states focused on the implementation of clinical supervision within their public child welfare agencies. This was part of a larger mixed methods study of the effectiveness of these new clinical supervision models on practice,…

  15. 34 CFR 350.41 - What State agency review must an applicant under the Disability and Rehabilitation Research...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 34 Education 2 2014-07-01 2013-07-01 true What State agency review must an applicant under the Disability and Rehabilitation Research Projects and Centers Program obtain? 350.41 Section 350.41 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION...

  16. 34 CFR 350.41 - What State agency review must an applicant under the Disability and Rehabilitation Research...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 34 Education 2 2013-07-01 2013-07-01 false What State agency review must an applicant under the Disability and Rehabilitation Research Projects and Centers Program obtain? 350.41 Section 350.41 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION...

  17. A Pascal-like triangle from finding power sums

    NASA Astrophysics Data System (ADS)

    Chen, Zhibo

    2014-08-01

    A Pascal-like triangle is constructed so that power sums can be conveniently obtained by college (or high school) students with no need for memorizing complicated formulas or performing difficult calculations.

  18. Detecting Statistically Significant Communities of Triangle Motifs in Undirected Networks

    DTIC Science & Technology

    2015-03-16

    to LFR benchmark graphs , relative to the method proposed by Perry et al. [6]. 6 Distribution A: Approved for public release; distribution is...trials. Specifically, let (X,Y ) denote any two observed triangles, then for a Bernoulli(p) graph : E(X) = E(Y ) = p3 (1) 7 Distribution A: Approved...the observed adjacency matrix and consider the null hypothesis H0: number of triangles in A is consistent with Bernoulli graph with probability p

  19. Vortex shells in mesoscopic triangles of amorphous superconducting thin films

    NASA Astrophysics Data System (ADS)

    Kokubo, N.; Miyahara, H.; Okayasu, S.; Nojima, T.

    2016-11-01

    Direct observation of vortex states confined in mesoscopic regular triangle dots of amorphous Mo-Ge thin films was made with a scanning superconducting quantum interference device microscope. The observed magnetic images illustrate clearly how vortices are distributed over the triangle dots by forming not only commensurate triangular clusters, but also unique patterns imposed by incommensurability. We discuss the results in terms of vortex shells and construct the packing sequence of vortices in the multiple shell structure.

  20. When Can One Expect a Stronger Triangle Inequality?

    ERIC Educational Resources Information Center

    Faiziev, Valerii; Powers, Robert; Sahoo, Prasanna

    2013-01-01

    In 1997, Bailey and Bannister showed that a + b greater than c + h holds for all triangles with [gamma] less than arctan (22/7)where a, b, and c are the sides of the triangle, "h" is the altitude to side "c", and [gamma] is the angle opposite c. In this paper, we show that a + b greater than c + h holds approximately 92% of the time for all…

  1. The Truth about Triangles: They're All the Same...Or are They?

    ERIC Educational Resources Information Center

    Matthews, Sarah

    2005-01-01

    The author looks at the image of the triangle and provides suggestions for teachers to expand children's perception of this geometric form. Studies have shown that when most children are asked to identify shapes, in particular triangles, they identify the equilateral triangle as the "true triangle." This article provides an overview of background…

  2. Report of Lawrence Livermore National Laboratory to the Environmental Protection Agency on research performed since December 1979

    SciTech Connect

    Wuebbles, D.J.; Chang, J.S.; Luther, F.M.; Penner, J.E.; Tarp, R.L.

    1981-10-01

    This report documents the research done at LLNL since December 1979 in support of the Environmental Protection Agency regarding stratospheric ozone and man's potential influence on it. Primary research emphasis has been on the numerical modeling of atmospheric chemical and physical processes, and assessments of the atmospheric response to stratospheric perturbations. The potential influence of chlorofluorocarbons on stratospheric ozone has been of particular concern. The basic research tool in these investigations has been the LLNL one-dimensonal coupled transport and chemical kinetics model of the troposphere and stratosphere. Each of the research tasks is described.

  3. The Defense Threat Reduction Agency's Technical Nuclear Forensics Research and Development Program

    NASA Astrophysics Data System (ADS)

    Franks, J.

    2015-12-01

    The Defense Threat Reduction Agency (DTRA) Technical Nuclear Forensics (TNF) Research and Development (R&D) Program's overarching goal is to design, develop, demonstrate, and transition advanced technologies and methodologies that improve the interagency operational capability to provide forensics conclusions after the detonation of a nuclear device. This goal is attained through the execution of three focus areas covering the span of the TNF process to enable strategic decision-making (attribution): Nuclear Forensic Materials Exploitation - Development of targeted technologies, methodologies and tools enabling the timely collection, analysis and interpretation of detonation materials.Prompt Nuclear Effects Exploitation - Improve ground-based capabilities to collect prompt nuclear device outputs and effects data for rapid, complementary and corroborative information.Nuclear Forensics Device Characterization - Development of a validated and verified capability to reverse model a nuclear device with high confidence from observables (e.g., prompt diagnostics, sample analysis, etc.) seen after an attack. This presentation will outline DTRA's TNF R&D strategy and current investments, with efforts focusing on: (1) introducing new technical data collection capabilities (e.g., ground-based prompt diagnostics sensor systems; innovative debris collection and analysis); (2) developing new TNF process paradigms and concepts of operations to decrease timelines and uncertainties, and increase results confidence; (3) enhanced validation and verification (V&V) of capabilities through technology evaluations and demonstrations; and (4) updated weapon output predictions to account for the modern threat environment. A key challenge to expanding these efforts to a global capability is the need for increased post-detonation TNF international cooperation, collaboration and peer reviews.

  4. Raising the bar for reproducible science at the U.S. Environmental Protection Agency Office of Research and Development.

    PubMed

    George, Barbara Jane; Sobus, Jon R; Phelps, Lara P; Rashleigh, Brenda; Simmons, Jane Ellen; Hines, Ronald N

    2015-05-01

    Considerable concern has been raised regarding research reproducibility both within and outside the scientific community. Several factors possibly contribute to a lack of reproducibility, including a failure to adequately employ statistical considerations during study design, bias in sample selection or subject recruitment, errors in developing data inclusion/exclusion criteria, and flawed statistical analysis. To address some of these issues, several publishers have developed checklists that authors must complete. Others have either enhanced statistical expertise on existing editorial boards, or formed distinct statistics editorial boards. Although the U.S. Environmental Protection Agency, Office of Research and Development, already has a strong Quality Assurance Program, an initiative was undertaken to further strengthen statistics consideration and other factors in study design and also to ensure these same factors are evaluated during the review and approval of study protocols. To raise awareness of the importance of statistical issues and provide a forum for robust discussion, a Community of Practice for Statistics was formed in January 2014. In addition, three working groups were established to develop a series of questions or criteria that should be considered when designing or reviewing experimental, observational, or modeling focused research. This article describes the process used to develop these study design guidance documents, their contents, how they are being employed by the Agency's research enterprise, and expected benefits to Agency science. The process and guidance documents presented here may be of utility for any research enterprise interested in enhancing the reproducibility of its science.

  5. Where Will the Triangle Look for It? Attributing False Beliefs to a Geometric Shape at 17 Months

    ERIC Educational Resources Information Center

    Surian, Luca; Geraci, Alessandra

    2012-01-01

    Prior research on implicit mind-reading skills has focussed on how infants anticipate other persons' actions. This study investigated whether 11- and 17-month-olds spontaneously attribute false beliefs (FB) even to a simple animated geometric shape. Infants were shown a triangle chasing a disk through a tunnel. Using an eye-tracker, we found that…

  6. The Iron Triangle: College Presidents Talk about Costs, Access, and Quality. National Center Report #08-2

    ERIC Educational Resources Information Center

    Immerwahr, John; Johnson, Jean; Gasbarra, Paul

    2008-01-01

    "The Iron Triangle" is a small-scale exploratory piece of research that adds another dimension to a decade of observation of how different groups view the current challenges facing higher education. The report explores the perspective of college and university presidents, examining the views of more than two dozen presidents who shared their…

  7. The Funding of Social Knowledge Production and Application: A Survey of Federal Agencies. Study Project on Social Research and Development, Volume 2.

    ERIC Educational Resources Information Center

    Abramson, Mark A.

    This survey is volume two of a six-volume report on the organization and management of social research and development throughout the U.S. government. The main body of the work contains a summary of spending for social research and development for each department of the federal government and the independent agencies. Agencies included are:…

  8. U.S. Environmental Protection Agency national network of research centers: A case study in socio-political influences on research

    SciTech Connect

    Morehouse, K.

    1995-12-01

    During the 15 years that the U.S. Environmental Protection Agency (EPA) has supported university-based research centers, there have been many changes in mission, operating style, funding level, eligibility, and selection process. Even the definition of the term {open_quotes}research center{close_quotes} is open to debate. Shifting national priorities, political realities, and funding uncertainties have powered the evolution of research centers in EPA, although the agency`s basic philosophy on the purpose and value of this approach to research remains essentially unchanged. Today, EPA manages 28 centers, through the Office of Exploratory Research. These centers are administered under three distinct programs. Each program has its own mission and goals which guide the way individual centers are selected and operated. This paper will describe: (1) EPA`s philosophy of reserach centers, (2) the complicated history of EPA research centers, (3) coordination and interaction among EPA centers and others, (4) opportunities for collaboration, and (5) plans for the future.

  9. ARSENIC IN DRINKING WATER SUPPLY WELLS: A MULTI-AGENCY, COMMUNITY-BASED, RESEARCH PROJECT

    EPA Science Inventory

    Studies have indicated that arsenic concentrations greater than the new U.S. Environmental Protection Agency (EPA) maximum contaminant level (MCL) concentration of 10 micrograms per liter (µg/L) occur in numerous aquifers around the United States. One such aquifer is the Central ...

  10. Applying Research to Licensing Agency Screening of Seniors for Fitness to Drive

    ERIC Educational Resources Information Center

    Soderstrom, Carl A.

    2008-01-01

    The aging process is associated with medical conditions that can negatively affect medical fitness to drive. Traditional licensing agency methods to identify at-risk drivers have significant limitations. These include testing of visual acuity and driving tests. Recently, methods have been developed to allow for screening for cognitive decline in…

  11. Professional Learning within Multi-Agency Children's Services: Researching into Practice

    ERIC Educational Resources Information Center

    Leadbetter, Jane; Daniels, Harry; Edwards, Anne; Martin, Deirdre; Middleton, David; Popova, Anna; Warmington, Paul; Apostolov, Apostol; Brown, Steve

    2007-01-01

    Background: This article is concerned with professional learning within multi-agency settings. Since the publication of the government document "Every child matters" in 2003, professionals involved in working with children and young people have been moving into newly organized services that are required to deliver improved services for…

  12. ARSENIC IN DRINKING WATER SUPPLY WELLS: A MULTI-AGENCY COMMUNITY-BASED, RESEARCH PROJECT

    EPA Science Inventory

    Studies have indicated that arsenic concentrations greater than the new U.S. Environmental Protection Agency (EPA) maximum contaminant level (MCL) concentration of 10 micrograms per liter (ųg/L) occur in numerous aquifers around the United States. One such aquifer is the Central ...

  13. 48 CFR 12.202 - Market research and description of agency need.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... commercial items to know which commercial products or services may be suitable. Generally, for acquisitions... item will describe the type of product or service to be acquired and explain how the agency intends to use the product or service in terms of function to be performed, performance requirement or...

  14. 48 CFR 12.202 - Market research and description of agency need.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... commercial items to know which commercial products or services may be suitable. Generally, for acquisitions... item will describe the type of product or service to be acquired and explain how the agency intends to use the product or service in terms of function to be performed, performance requirement or...

  15. Aspects of the flavor triangle for cosmic neutrino propagation

    NASA Astrophysics Data System (ADS)

    Fu, Lingjun; Ho, Chiu Man; Weiler, Thomas J.

    2015-03-01

    Over cosmic distances, astrophysical neutrino oscillations average out to a classical flavor propagation matrix P . Thus, flavor ratios injected at the cosmic source We,Wμ,Wτ evolve to flavor ratios at Earthly detectors we,wμ,wτ according to w →=P W →. The unitary constraint reduces the Euclidean octant to a "flavor triangle." We prove a theorem that the area of the Earthly flavor triangle is proportional to Det(P ) . One more constraint would further reduce the dimensionality of the flavor triangle at Earth (two) to a line (one). We discuss four such constraints. The first is the possibility of a vanishing determinant for P . We give a formula for a unique δ (θi j) that yields the vanishing determinant. Next, we consider the thinness of the Earthly flavor triangle. We relate this thinness to the small deviations of the two angles θ32 and θ13 from maximal mixing and zero, respectively. Then we consider the confusion resulting from the tau-neutrino decay topologies, which are showers at low energy, "double-bang" showers in the PeV range, and a mixture of showers and tracks at even higher energies. We examine the simple low-energy regime, where there are just two topologies: wshower=we+wτ and wtrack=wμ. We apply the statistical uncertainty to be expected from IceCube to this model. Finally, we consider ramifications of the expected lack of ντ injection at cosmic sources. In particular, this constraint reduces the Earthly triangle to a boundary line of the triangle. Some tests of this "no ντ injection" hypothesis are given.

  16. Raising the Bar for Reproducible Science at the U.S. Environmental Protection Agency Office of Research and Development

    PubMed Central

    George, Barbara Jane; Sobus, Jon R.; Phelps, Lara P.; Rashleigh, Brenda; Simmons, Jane Ellen; Hines, Ronald N.

    2015-01-01

    Considerable concern has been raised regarding research reproducibility both within and outside the scientific community. Several factors possibly contribute to a lack of reproducibility, including a failure to adequately employ statistical considerations during study design, bias in sample selection or subject recruitment, errors in developing data inclusion/exclusion criteria, and flawed statistical analysis. To address some of these issues, several publishers have developed checklists that authors must complete. Others have either enhanced statistical expertise on existing editorial boards, or formed distinct statistics editorial boards. Although the U.S. Environmental Protection Agency, Office of Research and Development, already has a strong Quality Assurance Program, an initiative was undertaken to further strengthen statistics consideration and other factors in study design and also to ensure these same factors are evaluated during the review and approval of study protocols. To raise awareness of the importance of statistical issues and provide a forum for robust discussion, a Community of Practice for Statistics was formed in January 2014. In addition, three working groups were established to develop a series of questions or criteria that should be considered when designing or reviewing experimental, observational, or modeling focused research. This article describes the process used to develop these study design guidance documents, their contents, how they are being employed by the Agency’s research enterprise, and expected benefits to Agency science. The process and guidance documents presented here may be of utility for any research enterprise interested in enhancing the reproducibility of its science. PMID:25795653

  17. Triangle based TVD schemes for hyperbolic conservation laws

    NASA Technical Reports Server (NTRS)

    Durlofsky, Louis J.; Osher, Stanley; Engquist, Bjorn

    1990-01-01

    A triangle based total variation diminishing (TVD) scheme for the numerical approximation of hyperbolic conservation laws in two space dimensions is constructed. The novelty of the scheme lies in the nature of the preprocessing of the cell averaged data, which is accomplished via a nearest neighbor linear interpolation followed by a slope limiting procedures. Two such limiting procedures are suggested. The resulting method is considerably more simple than other triangle based non-oscillatory approximations which, like this scheme, approximate the flux up to second order accuracy. Numerical results for linear advection and Burgers' equation are presented.

  18. How State Education Agencies Acquire and Use Research in School Improvement Strategies. Policy Brief. RB-55

    ERIC Educational Resources Information Center

    Goertz, Margaret E.; Barnes, Carol; Massell, Diane

    2013-01-01

    Although studies of districts' and schools' use of research exist, little is known about how SEAs search for, select, and use research and other kinds of evidence in their school improvement strategies. While one might assume similarities in research use behaviors, both the organizational structures of SEAs and the population of external…

  19. Enhancing Baccalaureate Student Learning in Research and Gerontology through Partnership with an Area Agency on Aging

    ERIC Educational Resources Information Center

    Smith, Laurie A.; McCaslin, Rosemary

    2011-01-01

    Designing an effective research learning experience for undergraduate social work students is challenging. Similarly, although content on elderly adults is a natural fit in many parts of the undergraduate curriculum, doing so in a research course can be a difficult challenge. Described in this article is an undergraduate research course that has…

  20. Towards a Cooperation Between the Arts, Space Science Research and the European Space Agency

    NASA Astrophysics Data System (ADS)

    Imhof, Anna Barbara; Waldvogel, Christian; Kotler, J. Michelle; Pell, Sarah Jane; Peljhan, Marko

    2013-02-01

    The arts offer alternative insights into reality — which is explored by science in general, and broadened by the activities conducted by the European Space Agency (ESA) and other space agencies. Similar to the way the members of ESA are ambassadors for spaceflight and science, artists and cultural professionals are ambassadors for human expression, experimentation, and exploration. In June 2011, the ESA Topical Team Arts & Sciences (ETTAS), held a three-day workshop at the European Astronaut Centre in Cologne, Germany. During this workshop, topics and ideas were discussed to develop cooperations between the arts, sciences and ESA to foster and expand the human and cultural aspects of space exploration, and at the same time offer a means of communication, which would aim to reach audiences beyond the scope of traditional space related channels. The preliminary findings and consensus of the team was that establishing and sustaining a transdisciplinary professional community consisting of ESA representatives, scientists and artists would fuel knowledge transfer, and mutual inspiration.

  1. Keeping up with Coordination: From Clark's Triangle to Microcosmographia

    ERIC Educational Resources Information Center

    Salazar, Jose; Leihy, Peodair

    2013-01-01

    In 1986 (first published 1983) Clark's triangle of coordination compared national higher education systems according to the dimensions of state authority, market and academic oligarchy. The picture was of a particular time, one in which those three factors could be ably used to illustrate major differences in how coordination took place.…

  2. Cohabitation promotes high diversity of clownfishes in the Coral Triangle

    PubMed Central

    De Brauwer, Maarten; Dumbrell, Alex J.; Smith, David J.

    2016-01-01

    Global marine biodiversity peaks within the Coral Triangle, and understanding how such high diversity is maintained is a central question in marine ecology. We investigated broad-scale patterns in the diversity of clownfishes and their host sea anemones by conducting 981 belt-transects at 20 locations throughout the Indo-Pacific. Of the 1508 clownfishes encountered, 377 fish occurred in interspecific cohabiting groups and cohabitation was almost entirely restricted to the Coral Triangle. Neither the diversity nor density of host anemone or clownfish species alone influenced rates of interspecific cohabitation. Rather cohabitation occurred in areas where the number of clownfish species exceeds the number of host anemone species. In the Coral Triangle, cohabiting individuals were observed to finely partition their host anemone, with the subordinate species inhabiting the periphery. Furthermore, aggression did not increase in interspecific cohabiting groups, instead dominant species were accepting of subordinate species. Various combinations of clownfish species were observed cohabiting (independent of body size, phylogenetic relatedness, evolutionary age, dentition, level of specialization) in a range of anemone species, thereby ensuring that each clownfish species had dominant reproductive individuals in some cohabiting groups. Clownfishes are obligate commensals, thus cohabitation is an important process in maintaining biodiversity in high diversity systems because it supports the persistence of many species when host availability is limiting. Cohabitation is a likely explanation for high species richness in other obligate commensals within the Coral Triangle, and highlights the importance of protecting these habitats in order to conserve unique marine biodiversity. PMID:27030417

  3. Applications of Pascal's Triangle for Middle School Students.

    ERIC Educational Resources Information Center

    Merrill, William L.

    This unit is designed to acquaint middle school students with Pascal's Triangle. The unit is intended to be completed in small groups with a minimum of teacher direction. Students complete the activities by using manipulatives, calculators and computers and then report the results to the teacher and the class. The activities include: (1) patterns…

  4. Cohabitation promotes high diversity of clownfishes in the Coral Triangle.

    PubMed

    Camp, Emma F; Hobbs, Jean-Paul A; De Brauwer, Maarten; Dumbrell, Alex J; Smith, David J

    2016-03-30

    Global marine biodiversity peaks within the Coral Triangle, and understanding how such high diversity is maintained is a central question in marine ecology. We investigated broad-scale patterns in the diversity of clownfishes and their host sea anemones by conducting 981 belt-transects at 20 locations throughout the Indo-Pacific. Of the 1508 clownfishes encountered, 377 fish occurred in interspecific cohabiting groups and cohabitation was almost entirely restricted to the Coral Triangle. Neither the diversity nor density of host anemone or clownfish species alone influenced rates of interspecific cohabitation. Rather cohabitation occurred in areas where the number of clownfish species exceeds the number of host anemone species. In the Coral Triangle, cohabiting individuals were observed to finely partition their host anemone, with the subordinate species inhabiting the periphery. Furthermore, aggression did not increase in interspecific cohabiting groups, instead dominant species were accepting of subordinate species. Various combinations of clownfish species were observed cohabiting (independent of body size, phylogenetic relatedness, evolutionary age, dentition, level of specialization) in a range of anemone species, thereby ensuring that each clownfish species had dominant reproductive individuals in some cohabiting groups. Clownfishes are obligate commensals, thus cohabitation is an important process in maintaining biodiversity in high diversity systems because it supports the persistence of many species when host availability is limiting. Cohabitation is a likely explanation for high species richness in other obligate commensals within the Coral Triangle, and highlights the importance of protecting these habitats in order to conserve unique marine biodiversity.

  5. Simplified triangle method for estimating evaporative fraction over soybean crops

    NASA Astrophysics Data System (ADS)

    Silva-Fuzzo, Daniela Fernanda; Rocha, Jansle Vieira

    2016-10-01

    Accurate estimates are emerging with technological advances in remote sensing, and the triangle method has demonstrated to be a useful tool for the estimation of evaporative fraction (EF). The purpose of this study was to estimate the EF using the triangle method at the regional level. We used data from the Moderate Resolution Imaging Spectroradiometer orbital sensor, referring to indices of surface temperature and vegetation index for a 10-year period (2002/2003 to 2011/2012) of cropping seasons in the state of Paraná, Brazil. The triangle method has shown considerable results for the EF, and the validation of the estimates, as compared to observed data of climatological water balance, showed values >0.8 for modified "d" of Wilmott and R2 values between 0.6 and 0.7 for some counties. The errors were low for all years analyzed, and the test showed that the estimated data are very close to the observed data. Based on statistical validation, we can say that the triangle method is a consistent tool, is useful as it uses only images of remote sensing as variables, and can provide support for monitoring large-scale agroclimatic, specially for countries of great territorial dimensions, such as Brazil, which lacks a more dense network of meteorological ground stations, i.e., the country does not appear to cover a large field for data.

  6. The Metaphor of the Triangle in Theories of Human Development

    ERIC Educational Resources Information Center

    Zittoun, Tania; Gillespie, Alex; Cornish, Flora; Psaltis, Charis

    2007-01-01

    Developmental psychologists have a long history of using triangle metaphors to conceptualise the social constitution of psychological development. In this paper, we present a genealogy of triadic theories, to clarify their origins, distinctions between them, and to identify key themes for theoretical development. The analysis identifies three core…

  7. On Feynman's Triangle Problem and the Routh Theorem

    ERIC Educational Resources Information Center

    Man, Yiu-Kwong

    2009-01-01

    In this article, we give a brief history of the Feynman's Triangle problem and describe a simple method to solve a general version of this problem, which is called the Routh Theorem. This method could be found useful to school teachers, instructors or lecturers who are involved in teaching geometry.

  8. Some Geometric Inequalities Relating to an Interior Point in Triangle

    ERIC Educational Resources Information Center

    Wu, Yu-Dong; Zhang, Zhi-Hua; Liang, Chun-Lei

    2010-01-01

    In this short note, by using one of Li and Liu's theorems [K.-H. Li, "The solution of CIQ. 39," "Commun. Stud. Inequal." 11(1) (2004), p. 162 (in Chinese)], "s-R-r" method, Cauchy's inequality and the theory of convex function, we solve some geometric inequalities conjectures relating to an interior point in triangle. (Contains 1 figure.)

  9. Triangles and tribulations: the politics of Nazi symbols.

    PubMed

    Elman, R A

    1996-01-01

    This article explores the politics of "reclamation." Its focus is on pink and black triangles, currently used as symbols for gay and lesbian pride and liberation. Previously, these same identifiers were worn by those destined for annihilation during the Holocaust. I suggest that, in [re]claiming these markers, activists, however well intentioned, run a path dangerously close to the denial of history.

  10. Exploring Dissections of Rectangles into Right-Angled Triangles

    ERIC Educational Resources Information Center

    Griffiths, Martin

    2013-01-01

    In this article we highlight how a simple classroom activity associated with the dissection of rectangles into right-angled triangles can lead on to a number of interesting explorations for students following a post-16 mathematics course. Several results connected with this construction are obtained, and some of the educational benefits of…

  11. Exploring dissections of rectangles into right-angled triangles

    NASA Astrophysics Data System (ADS)

    Griffiths, Martin

    2013-09-01

    In this article we highlight how a simple classroom activity associated with the dissection of rectangles into right-angled triangles can lead on to a number of interesting explorations for students following a post-16 mathematics course. Several results connected with this construction are obtained, and some of the educational benefits of carrying out an investigation such as this are also discussed.

  12. Clark's Triangle and Fiscal Incentives: Implications for Colleges'

    ERIC Educational Resources Information Center

    Lang, Dan

    2015-01-01

    For nearly 35 year's Burton Clark's triangle has been used as a paradigm for describing, assessing, and comparing systems of postsecondary education (Clark, 1998, 2004). Two major developments in the fiscal management of post-secondary education occurred more or less contemporaneously: incentive or performance funding on the part of the state and…

  13. How Do I Review Thee? Let Me Count the Ways: A Comparison of Research Grant Proposal Review Criteria Across US Federal Funding Agencies.

    PubMed

    Falk-Krzesinski, Holly J; Tobin, Stacey C

    While Elizabeth Barrett Browning counted 25 ways in which she loves her husband in her poem, "How Do I Love Thee? Let me Count the Ways," we identified only eight ways to evaluate the potential for success of a federal research grant proposal. This may be surprising, as it seems upon initial glance of the review criteria used by various federal funding agencies that each has its own distinct set of "rules" regarding the review of grant proposals for research and scholarship. Much of the grantsmanship process is dependent upon the review criteria, which represent the funders' desired impact of the research. But since most funders that offer research grants share the overarching goals of supporting research that (1) fits within its mission and (2) will bring a strong return on its financial investment, the review criteria used to evaluate research grant proposals are based on a similar set of fundamental questions. In this article, we compare the review criteria of 10 US federal agencies that support research through grant programs, and demonstrate that there are actually only a small and finite number of ways that a grant proposal can be evaluated. Though each funding agency may use slightly different wording, we found that the majority of the agencies' criteria address eight key questions. Within the highly competitive landscape of research grant funding, new researchers must find support for their research agendas and established investigators and research development offices must consider ways to diversify their funding portfolios, yet all may be discouraged by the apparent myriad of differences in review criteria used by various funding agencies. Guided by research administrators and research development professionals, recognizing that grant proposal review criteria are similar across funding agencies may help lower the barrier to applying for federal funding for new and early career researchers, or facilitate funding portfolio diversification for experienced

  14. Oil substitution and energy saving - A research and development strategy of the International Energy Agency /IEA/

    NASA Astrophysics Data System (ADS)

    Rath-Nagel, S.

    1981-03-01

    Systems analyses were carried out by the International Energy Agency for the participating 15 countries in order to work out strategies and scenarios for lessening the dependence on imported oil and for developing new energy technologies. MARKAL model computations show the technology and energy mixes necessary for achieving a reduction of oil imports by two thirds over the next 40 years. The scenario 'high social security' examines the projected rise in energy consumption, the development of oil substitutes, the increase in alternative heating sources, the development of markets for liquid energy products, the demand for gas, and the relative usage of various energy generation methods. The recommended strategy involves as the most important points an increase in coal consumption, greater nuclear energy reliance and development of alternative technologies.

  15. THE DENTAL RESEARCH CLINIC IN FLORIDA (AS AN EDUCATIONAL AND SERVICE AGENCY).

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Technical and Health Occupations Education Section.

    GUIDELINES FOR ORGANIZING AND OPERATING A DENTAL RESEARCH CLINIC WERE DEVELOPED BY THE DIVISION OF VOCATIONAL, TECHNICAL, AND ADULT EDUCATION, THE FLORIDA DENTAL SOCIETY'S SPECIAL COMMITTEE ON EDUCATION OF THE DENTAL ASSISTANT, AND OTHER DENTISTS WORKING CLOSELY WITH DENTAL ASSISTANT PROGRAMS. THE PURPOSES OF THE DENTAL RESEARCH CLINICS ARE TO…

  16. 77 FR 24221 - Agency Information Collection Activities: Proposed Collection; Comments Requested; Research To...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-23

    ... Crime Victimization Survey (NCVS) ACTION: 30-Day Notice of new collection. The Department of Justice... methodological research on the National Crime Victimization Survey continuing beyond June 30, 2012. Generic clearance for future methodological research on the National Crime Victimization Survey. (2) Title of...

  17. Notification: EPA’s Use of Science and Research Federal Advisory Committees to Improve Agency Performance

    EPA Pesticide Factsheets

    Project #OPE-FY16-0024, May 9, 2016.The EPA OIG plans to begin preliminary research on internal controls the EPA has in place to engage science and research Federal Advisory Committee Act (FACA) committees and utilize their recommendations.

  18. May I Recruit through Your Agency? Considerations for Researchers of Spousal Caregivers

    ERIC Educational Resources Information Center

    Pote, Steven

    2016-01-01

    Few resources within social science literature provide helpful information related to participant recruitment for research on spousal caregivers of individuals with dementia. Independent researchers with limited resources may not have access to large databases or centers in which access to caregivers is readily available. As a result, these…

  19. An overview of the Southern Nevada Agency Partnership science and research synthesis: Chapter 1 in The Southern Nevada Agency Partnership science and research synthesis: science to support land management in southern Nevada

    USGS Publications Warehouse

    Chambers, Jeanne C.; Brooks, Matthew L.; Turner, Kent; Raish, Carol B.; Ostoja, Steven M.

    2013-01-01

    discusses the Science and Research Strategy developed by the SNAP agencies, the Science and Research Report, and need for science-based management in southern Nevada.

  20. Applied virtual reality at the Research Triangle Institute

    NASA Technical Reports Server (NTRS)

    Montoya, R. Jorge

    1994-01-01

    Virtual Reality (VR) is a way for humans to use computers in visualizing, manipulating and interacting with large geometric data bases. This paper describes a VR infrastructure and its application to marketing, modeling, architectural walk through, and training problems. VR integration techniques used in these applications are based on a uniform approach which promotes portability and reusability of developed modules. For each problem, a 3D object data base is created using data captured by hand or electronically. The object's realism is enhanced through either procedural or photo textures. The virtual environment is created and populated with the data base using software tools which also support interactions with and immersivity in the environment. These capabilities are augmented by other sensory channels such as voice recognition, 3D sound, and tracking. Four applications are presented: a virtual furniture showroom, virtual reality models of the North Carolina Global TransPark, a walk through the Dresden Fraunenkirche, and the maintenance training simulator for the National Guard.

  1. U.S. Environmental Protection Agency's Robert S. Kerr Environmental Research Center, Ada, Oklahoma

    SciTech Connect

    Farrar-Nagy, S.; Voss, P.; Van Geet, O.

    2006-10-01

    U.S. EPA's Robert S. Kerr Environmental Research Center, Ada, Oklahoma, has reduced its annual energy consumption by 45% by upgrading its building mechanical system and incorporating renewable energy.

  2. Notification: Evaluation of the Environmental Protection Agency's (EPA) Research on Human Subjects

    EPA Pesticide Factsheets

    October 22, 2012. The purpose of this memorandum is to notify you that the Office of Inspector General (OIG) plans to begin an evaluation of the Environmental Protection Agency’s (EPA’s) Research on Human Subjects.

  3. Federally Funded Research Centers: Agency Reviews of Employee Compensation and Center Performance

    DTIC Science & Technology

    2014-08-01

    Apr . 30, 2016 Apr . 30, 2017 Savannah River National Laboratory (Savannah River Nuclear Solutions, LLC) 1951 Jan. 10, 2008 Sept. 30, 2016 July 31...Facility (Jefferson Science Associates, LLC) 1985 Apr . 14, 2006 May 31, 2016 May 31, 2025 Department of Defense Aerospace Federally Funded Research...research and development centers (FFRDC) sponsored by the Department of Energy (DOE), Department of Defense (DOD), and National Science Foundation

  4. Triangle Tilt and Steel Osteotomy: Similar Approaches to Common Problems

    PubMed Central

    Nath, Rahul K; Somasundaram, Chandra; Mahmooduddin, Faiz

    2011-01-01

    Background: Each year, thousands of children worldwide suffer obstetric brachial plexus nerve injuries resulting not only in primary nerve injury, but also in development of secondary muscle and bone deformities of the shoulder. The triangle tilt surgery has been developed and shown to effectively address these deformities. The triangle tilt procedure was initially designed by the lead author (RKN) to follow the concepts of joint normalization featured in the Steel pelvic osteotomy used to correct developmental dysplasia of the hip joint, and indeed ultimately bears a striking resemblance to the Steel osteotomy. Prior to performing these bony surgical procedures, soft tissue procedures are performed to release the muscle contractures of the shoulder and hip. The purpose of this article is to compare and analyze the similarities between the indications, surgical techniques, involved anatomy, and outcomes of these operative procedures. Methods: A literature review was conducted using PubMed to identify articles pertaining to triangle tilt surgery and the Steel pelvic osteotomy. Functional parameters and surgical strategies were compared. Pre- and post-operative CTs were analyzed to compare anatomical results of the procedures. Results: Similarities were found between both procedures in terms of indications, involved anatomy, surgical techniques, and outcomes. The triangle tilt surgery is indicated to correct the developmental dysplasia of the glenohumeral joint in obstetric brachial plexus injury patients. Steel pelvic osteotomy is performed to correct the subluxation and dislocation of the hip innominate bone in patients with congenital dysplasia, cerebral palsy myelodysplasia, and poliomyelitis. The involved anatomy of both procedures is similar in that both involve limb girdles and ball-and-socket joints, namely the shoulder and hip. Both procedures are also triple osteotomies, the triangle tilt involving the acromion, clavicle and scapula while the Steel

  5. NASA upper atmosphere research program: Research summaries, 1990 - 1991. Report to the Congress and the Environmental Protection Agency

    NASA Technical Reports Server (NTRS)

    1992-01-01

    The objectives, status, and accomplishments of the research tasks supported under the NASA Upper Atmosphere Research Program (UARP) are presented. The topics covered include the following: balloon-borne in situ measurements; balloon-borne remote measurements; ground-based measurements; aircraft-borne measurements; rocket-borne measurements; instrument development; reaction kinetics and photochemistry; spectroscopy; stratospheric dynamics and related analysis; stratospheric chemistry, analysis, and related modeling; and global chemical modeling.

  6. From voice to agency: guiding principles for participatory action research with youth.

    PubMed

    Rodríguez, Louie F; Brown, Tara M

    2009-01-01

    This article begins by examining current crises facing historically marginalized youth, which necessitate more critical approaches to youth development and empirical investigations into the challenges that young people face. This requires not only listening to their voices, but actively engaging them in investigations of and interventions into social problems that affect their lives. Researching with youth raises particular dilemmas, however. The authors discuss strategies, within three guiding principles, that they found effective in conducting participatory action research with marginalized youth for the purposes of social and educational transformation.

  7. How Do I Review Thee? Let Me Count the Ways: A Comparison of Research Grant Proposal Review Criteria Across US Federal Funding Agencies

    PubMed Central

    Falk-Krzesinski, Holly J.; Tobin, Stacey C.

    2016-01-01

    While Elizabeth Barrett Browning counted 25 ways in which she loves her husband in her poem, “How Do I Love Thee? Let me Count the Ways,” we identified only eight ways to evaluate the potential for success of a federal research grant proposal. This may be surprising, as it seems upon initial glance of the review criteria used by various federal funding agencies that each has its own distinct set of “rules” regarding the review of grant proposals for research and scholarship. Much of the grantsmanship process is dependent upon the review criteria, which represent the funders’ desired impact of the research. But since most funders that offer research grants share the overarching goals of supporting research that (1) fits within its mission and (2) will bring a strong return on its financial investment, the review criteria used to evaluate research grant proposals are based on a similar set of fundamental questions. In this article, we compare the review criteria of 10 US federal agencies that support research through grant programs, and demonstrate that there are actually only a small and finite number of ways that a grant proposal can be evaluated. Though each funding agency may use slightly different wording, we found that the majority of the agencies’ criteria address eight key questions. Within the highly competitive landscape of research grant funding, new researchers must find support for their research agendas and established investigators and research development offices must consider ways to diversify their funding portfolios, yet all may be discouraged by the apparent myriad of differences in review criteria used by various funding agencies. Guided by research administrators and research development professionals, recognizing that grant proposal review criteria are similar across funding agencies may help lower the barrier to applying for federal funding for new and early career researchers, or facilitate funding portfolio diversification for

  8. A Paper on Critical Issues Facing State Education Agencies in Supporting Educational Research: One Chief's Perspective.

    ERIC Educational Resources Information Center

    Shedd, Mark R.

    To reflect the changing technological and social demands of the society in which it exists, education must develop and alter its goals. Critical to this process is educational research in the areas of program evaluation, environmental influences and resource availability. Federal investment in National Institute of Education (NIE) activities and…

  9. Mathematics Teachers' Data Use in Practice: Considering Accountability, Action Research, and Agency

    ERIC Educational Resources Information Center

    Cavanna, Jillian M.

    2016-01-01

    The idea of data use as an educational reform strategy has gained significant traction in recent years, but there is limited research that illuminates what actually happens when teachers use data in practice. This study investigates the ways a group of middle school mathematics teachers used data in their classrooms and as part of an action…

  10. Advanced Research Projects Agency - Energy (ARPA-E): Background, Status, and Selected Issues for Congress

    DTIC Science & Technology

    2009-04-29

    Reserve funds.28 An analogous situation might be research supported through the Ultra - Deepwater and Unconventional Natural Gas and Other Petroleum... Deepwater Oil and Gas Leases, by Marc Humphries. 27 Testimony of Melanie Kenderdine, Vice President, Gas Technology Institute in U.S. Congress

  11. Drought Resilience and Water Conservation - Agency-Wide Actions and Research

    EPA Science Inventory

    In many areas of the United States, the frequency and duration of drought events are increasing. This pattern is expected to continue and to shift outside of historical trends, making forecasting our water quality and supply more difficult. EPA is conducting research and working ...

  12. Power, Agency and Participatory Agendas: A Critical Exploration of Young People's Engagement in Participative Qualitative Research

    ERIC Educational Resources Information Center

    Holland, Sally; Renold, Emma; Ross, Nicola J.; Hillman, Alexandra

    2010-01-01

    This article critically explores data generated within a participatory research project with young people in the care of a local authority, the (Extra)ordinary Lives project. The project involved ethnographic multi-media data generation methods used in groups and individually with eight participants (aged 10-20) over a school year and encouraged…

  13. The Relationship between Passibility, Agency and Social Interaction and Its Relevance for Research and Pedagogy

    ERIC Educational Resources Information Center

    Kirch, Susan A.; Ma, Jasmine Y.

    2016-01-01

    The interaction analysis presented by Kim and Roth examines nine students, their teachers, the learning task and materials in a mixed second and third grade science classroom during the school day. In the research narrative readers are introduced to two resourceful and creative groups of students as they work on a task assigned by their…

  14. The Structure and Agency Dilemma in Identity and Intercultural Communication Research

    ERIC Educational Resources Information Center

    Block, David

    2013-01-01

    Against a backdrop of rapid global transformations, the ever-increasing migration of people across nation-state borders and a wide array of language practices, applied linguists, and language and intercultural communication researchers in particular, often include identity as a key construct in their work. Most adopt a broadly poststructuralist…

  15. Global climate change research at the U.S. Environmental Protection Agency

    EPA Science Inventory

    The science surrounding global climate change is complex and has been interpreted in many ways. The concept of the Greenhouse Effect—viewed as the cause of global climate change—is quite simple, but the Earth’s response is not. After more than two decades of intensive research, s...

  16. Social Justice in Practice? Exploring Teacher Candidates' Commitment toward Change Agency through Action Research

    ERIC Educational Resources Information Center

    Burrell Storms, Stephanie

    2015-01-01

    Scholars have criticized teacher education programs for using action research (AR) to improve candidates' technical skills rather than promote its emancipatory goals. The author argues candidates who conduct critical AR promote its emancipatory goals and indicate a commitment to act as change agents for social justice through education. This…

  17. Increasing Research Capacity in Ontario Child Welfare Organizations: A Unique University-Child Welfare Agency Partnership

    ERIC Educational Resources Information Center

    Fallon, Barbara; Trocmé, Nico; Van Wert, Melissa; Budau, Krista; Ballantyne, Mary; Lwin, Kristen

    2015-01-01

    The objective of this article is to describe the successes and challenges of a unique knowledge mobilization initiative that was funded through the Social Sciences and Humanities Research Council of Canada. This initiative focused on promoting knowledge mobilization by increasing the capacity of child welfare organizations in Ontario to conduct…

  18. Creative Expressions of Agency: Contemplating Youth Voice and Adult Roles in Participatory Action Research

    ERIC Educational Resources Information Center

    Jones, Vanessa; Stewart, Carmine; Galletta, Anne; Ayala, Jennifer

    2015-01-01

    The chapter examines youth participation within three intergenerational collectives using participatory action research (PAR) to address educational policies youth viewed as counterproductive to their education. Outlining the complexity of youth voice, the multiple vehicles within the arts through which youth voice is expressed, and the different…

  19. A Federal Arts Agency at the Center of Reading Research: How We Got Here

    ERIC Educational Resources Information Center

    Iyengar, Sunil

    2008-01-01

    In this article, the author offers a short summary of the findings of the National Endowment for the Arts report on the status of reading, "To Read or Not to Read: A Question of National Consequence", and an explanation of the guiding rationale for the study and some future areas of research that seem warranted in light of public responses to the…

  20. Evaluation Research in Child Welfare: Improving Outcomes through University-Public Agency Partnerships.

    ERIC Educational Resources Information Center

    Briar-Lawson, Katharine, Ed.; Zlotnik, Joan Levy, Ed.

    While research shows that trained social workers were better prepared to produce more effective outcomes in child welfare than those with other degrees, only an estimated 3 to 28 percent of the public child welfare workforce comprised trained social workers. A social work effort to promote workforce development and to promote professional social…

  1. [Cysts in the posterior triangle of the neck in adults].

    PubMed

    Brea-Álvarez, Beatriz; Roldán-Hidalgo, Amaya

    2015-01-01

    Cystic lesions of the posterior triangle are a pathologic entity whose diagnosis is made in the first two years of life. Its presentation in adulthood is an incidental finding and the differential diagnosis includes cystic lymphangioma, lymphatic metastasis of thyroid cancer and branchial cyst. Often with the finding of a cervical lump, FNA is made before diagnostic imaging is performed, however, this procedure is not always advisable. We reviewed the cases of patients who came last year to our department with a cystic mass in this location and correlating the imaging findings with pathologic specimen. We show characteristic findings of these lesions in order to make an early diagnosis and thus to get the approach and treatment appropriate of adult patients with a cystic lesion in the posterior cervical triangle.

  2. Natural gas hydrates and the mystery of the Bermuda Triangle

    SciTech Connect

    Gruy, H.J.

    1998-03-01

    Natural gas hydrates occur on the ocean floor in such great volumes that they contain twice as much carbon as all known coal, oil and conventional natural gas deposits. Releases of this gas caused by sediment slides and other natural causes have resulted in huge slugs of gas saturated water with density too low to float a ship, and enough localized atmospheric contamination to choke air aspirated aircraft engines. The unexplained disappearances of ships and aircraft along with their crews and passengers in the Bermuda Triangle may be tied to the natural venting of gas hydrates. The paper describes what gas hydrates are, their formation and release, and their possible link to the mystery of the Bermuda Triangle.

  3. Star-triangle relation for a three-dimensional model

    SciTech Connect

    Bazhanov, V.V. Institute for High Eenrgy Physics, Protvino, Moscow Region ); Baxter, R.J. Australian National Univ., Canberra )

    1993-06-01

    The solvable sl(n)-chiral Potts model can be interpreted as a three-dimensional lattice model with local interactions. To within a minor modification of the boundary conditions it is an Ising-type model on the body-centered cubic lattice with two- and three-spin interactions. The corresponding local Boltzmann weights obey a number of simple relations, including a restricted star-triangle relation, which is a modified version of the well-known star-triangle relation appearing in two-dimensional models. It is shown that these relations lead to remarkable symmetry properties of the Boltzmann weight function of an elementary cube of the lattice, related to the spatial symmetry group of the cubic lattice. These symmetry properties allow one to prove the commutativity of the row-to-row transfer matrices, bypassing the tetrahedron relation. The partition function per site for the infinite lattice is calculated exactly. 20 refs., 4 figs.

  4. Triangles bridge the scales: Quantifying cellular contributions to tissue deformation

    NASA Astrophysics Data System (ADS)

    Merkel, Matthias; Etournay, Raphaël; Popović, Marko; Salbreux, Guillaume; Eaton, Suzanne; Jülicher, Frank

    2017-03-01

    In this article, we propose a general framework to study the dynamics and topology of cellular networks that capture the geometry of cell packings in two-dimensional tissues. Such epithelia undergo large-scale deformation during morphogenesis of a multicellular organism. Large-scale deformations emerge from many individual cellular events such as cell shape changes, cell rearrangements, cell divisions, and cell extrusions. Using a triangle-based representation of cellular network geometry, we obtain an exact decomposition of large-scale material deformation. Interestingly, our approach reveals contributions of correlations between cellular rotations and elongation as well as cellular growth and elongation to tissue deformation. Using this triangle method, we discuss tissue remodeling in the developing pupal wing of the fly Drosophila melanogaster.

  5. Synthetic RNA-protein complex shaped like an equilateral triangle

    NASA Astrophysics Data System (ADS)

    Ohno, Hirohisa; Kobayashi, Tetsuhiro; Kabata, Rinko; Endo, Kei; Iwasa, Takuma; Yoshimura, Shige H.; Takeyasu, Kunio; Inoue, Tan; Saito, Hirohide

    2011-02-01

    Synthetic nanostructures consisting of biomacromolecules such as nucleic acids have been constructed using bottom-up approaches. In particular, Watson-Crick base pairing has been used to construct a variety of two- and three-dimensional DNA nanostructures. Here, we show that RNA and the ribosomal protein L7Ae can form a nanostructure shaped like an equilateral triangle that consists of three proteins bound to an RNA scaffold. The construction of the complex relies on the proteins binding to kink-turn (K-turn) motifs in the RNA, which allows the RNA to bend by ~60° at three positions to form a triangle. Functional RNA-protein complexes constructed with this approach could have applications in nanomedicine and synthetic biology.

  6. Absence of Posterior Triangle: Clinical and Embryological Perspective

    PubMed Central

    Singh, Shikha; Loh, Hitendra Kumar; Mehta, Vandana; Suri, Rajesh Kumar

    2017-01-01

    Sternocleidomastoid (SCM) and Trapezius (TM) muscle present in the cervical region serves as an important landmark in forming boundaries of posterior triangle of neck. This case reports a continuous muscle sheet obscuring the left posterior triangle in the neck of a 60-year-old Indian male cadaver. An unfamiliar oval gap was observed in its posterosuperior portion. Description of such a variant in anatomical literature is rare and is scarcely reported. An attempt has been made to portray its embryological and phylogenetic basis. In addition authors have endeavoured to discuss its clinical implications. Awareness of such anatomical variations is relevant for the operating surgeons in their endeavour to perform various reconstruction surgeries of head and neck, radiologists while concluding various levels in Computed Tomography (CT) and Magnetic Resonance Images (MRI) of the region and to the anaesthetists in their search for nerves and vessels while attempting various anaesthetic procedures. PMID:28384846

  7. The Triangle Model for evaluating the effect of health information technology on healthcare quality and safety.

    PubMed

    Ancker, Jessica S; Kern, Lisa M; Abramson, Erika; Kaushal, Rainu

    2012-01-01

    With the proliferation of relatively mature health information technology (IT) systems with large numbers of users, it becomes increasingly important to evaluate the effect of these systems on the quality and safety of healthcare. Previous research on the effectiveness of health IT has had mixed results, which may be in part attributable to the evaluation frameworks used. The authors propose a model for evaluation, the Triangle Model, developed for designing studies of quality and safety outcomes of health IT. This model identifies structure-level predictors, including characteristics of: (1) the technology itself; (2) the provider using the technology; (3) the organizational setting; and (4) the patient population. In addition, the model outlines process predictors, including (1) usage of the technology, (2) organizational support for and customization of the technology, and (3) organizational policies and procedures about quality and safety. The Triangle Model specifies the variables to be measured, but is flexible enough to accommodate both qualitative and quantitative approaches to capturing them. The authors illustrate this model, which integrates perspectives from both health services research and biomedical informatics, with examples from evaluations of electronic prescribing, but it is also applicable to a variety of types of health IT systems.

  8. Endocrine disrupting chemicals research program of the U.S. Environmental Protection Agency: summary of a peer-review report

    USGS Publications Warehouse

    Harding, Anna K.; Daston, George P.; Boyd, Glen R.; Lucier, George W.; Safe, Stephen H.; Stewart, Juarine; Tillitt, Donald E.; Van Der Kraak, Glen

    2006-01-01

    At the request of the U.S. Environmental Protection Agency (EPA) Office of Research and Development, a subcommittee of the Board of Scientific Counselors Executive Committee conducted an independent and open peer review of the Endocrine Disrupting Chemicals Research Program (EDC Research Program) of the U.S. EPA. The subcommittee was charged with reviewing the design, relevance, progress, scientific leadership, and resources of the program. The subcommittee found that the long-term goals and science questions in the EDC Program are appropriate and represent an understandable and solid framework for setting research priorities, representing a combination of problem-driven and core research. Long-term goal (LTG) 1, dealing with the underlying science surrounding endocrine disruptors, provides a solid scientific foundation for conducting risk assessments and making risk management decisions. LTG 2, dealing with defining the extent of the impact of endocrine-disrupting chemicals (EDCs), has shown greater progress on ecologic effects of EDCs compared with that on human health effects. LTG 3, which involves support of the Endocrine Disruptor Screening and Testing Program of the U.S. EPA, has two mammalian tests already through a validation program and soon available for use. Despite good progress, we recommend that the U.S. EPA a) strengthen their expertise in wildlife toxicology, b) expedite validation of the Endocrine Disruptors Screening and Testing Advisory Committee tests, c) continue dependable funding for the EDC Research Program, d) take a leadership role in the application of “omics” technologies to address many of the science questions critical for evaluating environmental and human health effects of EDCs, and e) continue to sponsor multidisciplinary intramural research and interagency collaborations.

  9. Endocrine disrupting chemicals research program of the U.S. Environmental Protection Agency: summary of a peer-review report.

    PubMed

    Harding, Anna K; Daston, George P; Boyd, Glen R; Lucier, George W; Safe, Stephen H; Stewart, Juarine; Tillitt, Donald E; Van Der Kraak, Glen

    2006-08-01

    At the request of the U.S. Environmental Protection Agency (EPA) Office of Research and Development, a subcommittee of the Board of Scientific Counselors Executive Committee conducted an independent and open peer review of the Endocrine Disrupting Chemicals Research Program (EDC Research Program) of the U.S. EPA. The subcommittee was charged with reviewing the design, relevance, progress, scientific leadership, and resources of the program. The subcommittee found that the long-term goals and science questions in the EDC Program are appropriate and represent an understandable and solid framework for setting research priorities, representing a combination of problem-driven and core research. Long-term goal (LTG) 1, dealing with the underlying science surrounding endocrine disruptors, provides a solid scientific foundation for conducting risk assessments and making risk management decisions. LTG 2, dealing with defining the extent of the impact of endocrine-disrupting chemicals (EDCs), has shown greater progress on ecologic effects of EDCs compared with that on human health effects. LTG 3, which involves support of the Endocrine Disruptor Screening and Testing Program of the U.S. EPA, has two mammalian tests already through a validation program and soon available for use. Despite good progress, we recommend that the U.S. EPA a) strengthen their expertise in wildlife toxicology, b) expedite validation of the Endocrine Disruptors Screening and Testing Advisory Committee tests, c) continue dependable funding for the EDC Research Program, d) take a leadership role in the application of "omics" technologies to address many of the science questions critical for evaluating environmental and human health effects of EDCs, and e) continue to sponsor multidisciplinary intramural research and interagency collaborations.

  10. Overview of the US EPA (Environmental Protection Agency) electrostatic particulate research and development program

    SciTech Connect

    Plaks, N.

    1984-11-01

    The U.S. EPA's particulate research and development program, divided between an in-house laboratory effort and extramural work at various research institutes, makes use of electrostatics in most of the work associated with stack or ducted emissions. Research facilities which offer a large degree of flexibility and capability are described. Significant work currently underway, making use of electrostatics, includes: (1) smooth large-diameter discharge electrodes (9-10 mm), that have been evaluated in 1/3- and 10-MW pilot units; (2) the multistage electrostatic precipitator (ESP), consisting of several two-stage ESPs in series, each using cold-pipe prechargers and collectors with large diameter electrodes; (3) the E-SOX process, combining the multistage ESP with a spray dryer in an existing ESP, for simultaneous SO2 and fly ash removal (including injections of soda ash and lime slurry droplets); and (4) electrostatically augmented fabric filtration with fly ash (including spray drying by-product material).

  11. Learning for interprofessional and inter-agency practice in the new social work curriculum: evidence from an earlier research study.

    PubMed

    Whittington, C; Bell, L

    2001-05-01

    The UK Government's consultation document, A Quality Strategy for Social Care (2000) seeks consistency and excellence in care services and enhanced service partnerships. It states that this requires improved training for social workers and raises the prospect of a new social work curriculum in which learning for interprofessional and inter-agency practice will be strengthened. The document stresses the importance of evidence in decision-making in social care and this principle applies equally to training but there are few recent research findings on interprofessional and inter-agency learning in the social work curriculum. There are, however, findings from an earlier study which contributed to the mid-1990s review of the Diploma in Social Work but which have not previously been published in the mainstream media. These findings are reported and show: the kinds of organisations and professions with whom social work practitioners were in close contact in their jobs; the importance attached by social workers to defined skills in working with them; the perceived usefulness of training in developing relevant knowledge and skills; perceptions of shared training; and marked differences of learning experience reported by practitioners who had taken different training courses. Each set of findings is described and used as the basis of questions for the new social work curriculum.

  12. Surface roughness stabilizes the clustering of self-propelled triangles

    NASA Astrophysics Data System (ADS)

    Ilse, Sven Erik; Holm, Christian; de Graaf, Joost

    2016-10-01

    Self-propelled particles can spontaneously form dense phases from a dilute suspension in a process referred to as motility-induced phase separation. The properties of the out-of-equilibrium structures that are formed are governed by the specifics of the particle interactions and the strength of the activity. Thus far, most studies into the formation of these structures have focused on spherical colloids, dumbbells, and rod-like particles endowed with various interaction potentials. Only a few studies have examined the collective behavior of more complex particle shapes. Here, we increase the geometric complexity and use molecular dynamics simulations to consider the structures formed by triangular self-propelled particles with surface roughness. These triangles either move towards their apex or towards their base, i.e., they possess a polarity. We find that apex-directed triangles cluster more readily, more stably, and have a smoother cluster interface than their base-directed counterparts. A difference between the two polarities is in line with the results of Wensink et al. [Phys. Rev. E 89, 010302 (2014)]; however, we obtain the reversed result when it comes to clustering, namely, that apex-directed triangles cluster more successfully. We further show that reducing the surface roughness negatively impacts the stability of the base-directed structures, suggesting that their formation is in large part due to surface roughness. Our results lay a solid foundation for future experimental and computational studies into the effect of roughness on the collective dynamics of swimmers.

  13. In vitro study of the aortic interleaflet triangle reshaping.

    PubMed

    Vismara, R; Leopaldi, A M; Mangini, A; Romagnoni, C; Contino, M; Antona, C; Fiore, G B

    2014-01-22

    Aortic interleaflet triangle reshaping (AITR) is a surgical approach to aortic valve incontinence that involves placing three stitches at half of the interleaflet triangles height. In this work, the relationship between the actual stitch height and valve functioning, and the safety margin that the surgeon can rely on in applying the stitches were systematically investigated in vitro. AITR surgery was applied to six swine aortic roots placing the stitches empirically at 50%, 60% and 75% of the triangle heights. Then the actual stitch heights were measured and the hydrodynamic performances were evaluated with a pulsatile hydrodynamic mock loop. Actual stitch heights were 45±2%, 61±4% and 79±6%. As compared to untreated conditions, the 50% configuration induced a significant variation in the effective orifice area. With stitches placed at 60%, the mean systolic pressure drop increased significantly with respect to the untreated case, but no significant changes were recorded with respect to the 50% configuration. At 75%, all the hydrodynamic parameters of systolic valve functioning worsened significantly. Summarizing, the AITR technique, when performed in a conservative manner did not induce significant alterations in the hydrodynamics of the aortic root in vitro, while more aggressive configurations did. The absence of a statistically significant difference between the 50% and 60% configurations suggests that there is a reasonably limited risk of inducing valve stenosis in the post-op scenario due to stitch misplacement.

  14. The disease triangle: pathogens, the environment and society.

    PubMed

    Scholthof, Karen-Beth G

    2007-02-01

    The primary means to define any disease is by naming a pathogen or agent that negatively affects the health of the host organism. Another assumed, but often overlooked, determinant of disease is the environment, which includes deleterious physical and social effects on mankind. The disease triangle is a conceptual model that shows the interactions between the environment, the host and an infectious (or abiotic) agent. This model can be used to predict epidemiological outcomes in plant health and public health, both in local and global communities. Here, the Irish potato famine of the mid-nineteenth century is used as an example to show how the disease triangle, originally devised to interpret plant disease outcomes, can be applied to public health. In parallel, malaria is used to discuss the role of the environment in disease transmission and control. In both examples, the disease triangle is used as a tool to discuss parameters that influence socioeconomic outcomes as a result of host-pathogen interactions involving plants and humans.

  15. Determination of fast neutron flux distribution in irradiation sites of the Malaysian Nuclear Agency research reactor.

    PubMed

    Yavar, A R; Sarmani, S B; Wood, A K; Fadzil, S M; Radir, M H; Khoo, K S

    2011-05-01

    Determination of thermal to fast neutron flux ratio (f(fast)) and fast neutron flux (ϕ(fast)) is required for fast neutron reactions, fast neutron activation analysis, and for correcting interference reactions. The f(fast) and subsequently ϕ(fast) were determined using the absolute method. The f(fast) ranged from 48 to 155, and the ϕ(fast) was found in the range 1.03×10(10)-4.89×10(10) n cm(-2) s(-1). These values indicate an acceptable conformity and applicable for installation of the fast neutron facility at the MNA research reactor.

  16. Research Interests and Broad Agency Announcement 94-1 of the Air Force Office of Scientific Research

    DTIC Science & Technology

    1993-10-01

    Environmental Sciences 33 Chemical Reactivity and Synthesis, Neuroscience, Dr. Haddad 35 Dr. Hedberg 21 Chronobiology , Dr. Haddad 35 Polymer Chemistry, Dr...exploited by the U.S. FAX: (202) 767-4986 LIFE AND ENVIRONMENTAL SCIENCES Neuroscience, Dr. Haddad 35 Chronobiology , Dr. Haddad 35 Perception and Recognition...FAX: (202) 404-7475 This program supports research focused on the ac- curate integration of the visual, visual-vestibular, visual Chronobiology otolith

  17. Latino Adolescent Reproductive and Sexual Health Behaviors and Outcomes: Research Informed Guidance for Agency-based Practitioners

    PubMed Central

    Guilamo-Ramos, Vincent; Goldberg, Vincent; Lee, Jane; McCarthy, Katherine; Leavitt, Sarah

    2011-01-01

    Latinos are the largest and fastest growing minority youth group in the United States. Currently, Latino adolescents experience higher rates of teen pregnancy compared to any other racial or ethnic group and have disproportionately high levels of sexually transmitted infections and HIV. Latino teens are also affected by a number of social problems such as school dropout, poverty, depression and limited access to healthcare, which contributes to disparities in reproductive health outcomes for this population. Relatively few intervention research studies and programs have been dedicated to reducing sexual risk among Latino youth, despite their particular vulnerabilities in experiencing negative reproductive health outcomes. We provide recommendations for identifying the unique reproductive health needs of Latino youth and specific applied strategies so that agency-based social workers and other providers can develop family-based interventions that improve adolescent Latino sexual and reproductive health. PMID:23279981

  18. How Are the Interests of Incapacitated Research Participants Protected through Legislation? An Italian Study on Legal Agency for Dementia Patients

    PubMed Central

    Gainotti, Sabina; Fusari Imperatori, Susanna; Spila-Alegiani, Stefania; Maggiore, Laura; Galeotti, Francesca; Vanacore, Nicola; Petrini, Carlo; Raschetti, Roberto; Mariani, Claudio; Clerici, Francesca

    2010-01-01

    Background Patients with dementia may have limited capacity to give informed consent to participate in clinical research. One possible way to safeguard the patients' interests in research is the involvement of a proxy in the recruitment process. In Italy, the system of proxy is determined by the courts. In this study we evaluate the timing for appointment of a legal proxy in Italy and identify predictive variables of appointment. Methodology/Principal Findings Subjects were recruited among the outpatients seeking medical advice for cognitive complaints at the Centre for Research and Treatment of Cognitive Dysfunctions, University of Milan, “Luigi Sacco” Hospital. The Centre was participating to the AdCare Study, a no-profit randomised clinical trial coordinated by the Italian National Institute of Health. The requirement that informed consent be given by a legal representative dramatically slowed down the recruitment process in AdCare, which was prematurely interrupted. The Centre for Research and Treatment of Cognitive Dysfunctions collected data on the timing required to appoint the legal representatives. Patients diagnosed with dementia and their caregivers were provided information on the Italian law on legal agency (law 6/2004). At each scheduled check-up the caregiver was asked whether she/he had applied to appoint a legal proxy for the patient and the time interval between the presentation of the law, the registration of the application at the law court chancellery and the sentence of appointment was registered. The study involved 169 demented patients. Seventy-eight patients (46.2%) applied to appoint a legal proxy. These subjects were usually younger, had been suffering from dementia for a longer time, had less than two children and made more use of memantine. The mean interval time between the presentation of the law and the patients' application to the law court chancellery was two months. The mean interval time between the patient's application to

  19. Summary of research on microbiological processes. International Energy Agency Subtask D, final report

    SciTech Connect

    Winters, A.L.

    1992-09-01

    Storage of thermal energy in aquifers has obvious benefits of saving energy and decreasing the consumption of fossil fuels. However, aquifer thermal energy storage (ATES), which involves groundwater aquifers as the storage medium for heat or chill, impinges on the environment. A literature review of pertinent microbiology publications (Hicks and Stewart, 1988) identified the potential for the interaction of ATES systems and microbiological processes to create a source of infectious diseases and the potential for damage to the environment. In addition, the review identified a potential for microbiological processes to develop conditions that would interfere with the operation of an ATES system. As a result of this research effort, investigators from Finland, Germany, Switzerland, and the United States have examined several ATES systems in operation and have observed that the ATES systems studied do not contribute to infectious disease transmission, do not adversely affect the environment, and do not contribute significantly to biofouling or biocorrosion.

  20. Saturnian north polar region: a triangle inside the hexagon?

    NASA Astrophysics Data System (ADS)

    Kochemasov, Gennady G.

    2010-05-01

    The famous and "mysterious" stable hexagon structure around the North Pole of Saturn was earlier interpreted as projections of faces of a structural tetrahedron [1]. This "hidden" simplest Plato's polyhedron is a result of an interference of four fundamental (wave 1) warping waves having in any rotating celestial body four directions: orthogonal and diagonal. Origin of the warping waves in any celestial body is due to their movements in elliptical keplerian orbits with periodically changing accelerations. The structural tetrahedron is an intrinsic geometric feature marking the celestial bodies ubiquitous tectonic dichotomy as in a tetrahedron always there is an opposition of a face (expansion) and a vertex (contraction). In the saturnian case the tetrahedron shows a face at the north and a vertex at the south. Morphologically this is manifested by the hexagon and opposing it in the south a vertex. Blue and pink hues of the northern and southern hemispheres also underline the tectonic dichotomy. These geometric expressions are enforced by a subtle dark equilateral triangle appearing in the image PIA11682 also around the north pole and inside the hexagon (the triangle side is about 15000 km long). One angle of the triangle is clearly visible, another one just shows itself and the third one is barely distinguished. The sides of the triangle are not strait lines but slightly broken amidst lines what makes the triangle appear a bit hexagonal (spherical) and the angle is a bit bigger than 60 degrees of a classical equilateral triangle (~70 degrees). The central part of the triangle is not imaged (a black hole in the PIA11682). This image also confirms that the wide northern polar region is also densely "peppered" with bright cloudy more or less isometric spots on average 400 to 800 km across as in other latitudinal belts of Saturn [2, 3, 4]. Earlier they were observed in IR wavelengths, now they show themselves in visible wavelengths. Their origin and size were

  1. Recent progress on tritium technology research and development for a fusion reactor in Japan Atomic Energy Agency

    SciTech Connect

    Hayashi, T.; Nakamura, H.; Kawamura, Y.; Iwai, Y.; Isobe, K.; Yamada, M.; Kurata, R.; Edao, Y.; Suzuki, T.; Oyaizu, M.; Yamanishi, T.

    2015-03-15

    JAEA (Japan Atomic Energy Agency) manages 2 tritium handling laboratories: Tritium Processing Laboratory (TPL) in Tokai and DEMO-RD building in Rokkasho. TPL has been accumulating a gram level tritium safety handling experiences without any accidental tritium release to the environment for more than 25 years. Recently, our activities have focused on 3 categories, as follows. First, the development of a detritiation system for ITER. This task is the demonstration test of a wet Scrubber Column (SC) as a pilot scale (a few hundreds m{sup 3}/h of processing capacity). Secondly, DEMO-RD tasks are focused on investigating the general issues required for DEMO-RD design, such as structural materials like RAFM (Reduced Activity Ferritic/Martensitic steels) and SiC/SiC, functional materials like tritium breeder and neutron multiplier, and tritium. For the last 4 years, we have spent a lot of time and means to the construction of the DEMO-RD facility and to its licensing, so we have just started the actual research program with tritium and other radioisotopes. This tritium task includes tritium accountancy, tritium basic safety research such as tritium interactions with various materials, which will be used for DEMO-RD and durability. The third category is the recovery work from the Great East Japan earthquake (2011 earthquake). It is worth noting that despite the high magnitude of the earthquake, TPL was able to confine tritium properly without any accidental tritium release.

  2. Applying a Behavioral Model Framework for Disaster Recovery Research in Local Public Health Agencies: A Conceptual Approach.

    PubMed

    Walsh, Lauren; Garrity, Stephanie; Rutkow, Lainie; Thompson, Carol B; Strauss-Riggs, Kandra; Altman, Brian A; Schor, Kenneth; Barnett, Daniel J

    2015-08-01

    The local public health agency (LPHA) workforce is at the center of the public health emergency preparedness system and is integral to locally driven disaster recovery efforts. Throughout the disaster recovery period, LPHAs have a primary responsibility for community health and are responsible for a large number of health services. In the face of decreasing preparedness funding and increasing frequency and severity of disasters, LPHAs continue to provide essential disaster life cycle services to their communities. However, little is known about the confidence that LPHA workers have in performing disaster recovery-related duties. To date, there is no widely used instrument to measure LPHA workers' sense of efficacy, nor is there an educational intervention designed specifically to bolster disaster recovery-phase efficacy perceptions. Here, we describe the important role of the LPHA workforce in disaster recovery and the operational- and efficacy-related research gaps inherent in today's disaster recovery practices. We then propose a behavioral framework that can be used to examine LPHA workers' disaster recovery perceptions and suggest a research agenda to enhance LPHA workforce disaster recovery efficacy through an evidence-informed educational intervention.

  3. Using the triangle inequality to reduce the number of comparisons required for similarity-based retrieval

    SciTech Connect

    Barros, J. |; French, J.; Martin, W.; Kelly, P.; Cannon, M.

    1996-03-01

    Dissimilarity measures, the basis of similarity-based retrieval, can be viewed as a distance and a similarity-based search as a nearest neighbor search. Though there has been extensive research on data structures and search methods to support nearest-neighbor searching, these indexing and dimension-reduction methods are generally not applicable to non-coordinate data and non-Euclidean distance measures. In this paper we reexamine and extend previous work of other researchers on best match searching based on the triangle inequality. These methods can be used to organize both non-coordinate data and non-Euclidean metric similarity measures. The effectiveness of the indexes depends on the actual dimensionality of the feature set, data, and similarity metric used. We show that these methods provide significant performance improvements and may be of practical value in real-world databases.

  4. Variability in reef connectivity in the Coral Triangle

    NASA Astrophysics Data System (ADS)

    Thompson, D. M.; Kleypas, J. A.; Castruccio, F. S.; Watson, J. R.; Curchitser, E. N.

    2015-12-01

    The Coral Triangle (CT) is not only the global center of marine biodiversity, it also supports the livelihoods of millions of people. Unfortunately, it is also considered the most threatened of all reef regions, with rising temperature and coral bleaching already taking a toll. Reproductive connectivity between reefs plays a critical role in the reef's capacity to recover after such disturbances. Thus, oceanographic modeling efforts to understand patterns of reef connectivity are essential to the effective design of a network of Marine Protected Areas (MPAs) to conserve marine ecosystems in the Coral Triangle. Here, we combine a Regional Ocean Modeling System developed for the Coral Triangle (CT-ROMS) with a Lagrangian particle tracking tool (TRACMASS) to investigate the probability of coral larval transport between reefs. A 47-year hindcast simulation (1960-2006) was used to investigate the variability in larval transport of a broadcasting coral following mass spawning events in April and September. Potential connectivity between reefs was highly variable and stochastic from year to year, emphasizing the importance of decadal or longer simulations in identifying connectivity patterns, key source and sink regions, and thus marine management targets for MPAs. The influence of temperature on realized connectivity (future work) may add further uncertainty to year-to-year patterns of connectivity between reefs. Nonetheless, the potential connectivity results we present here suggest that although reefs in this region are primarily self-seeded, rare long-distance dispersal may promote recovery and genetic exchange between reefs in the region. The spatial pattern of "subpopulations" based solely on the physical drivers of connectivity between reefs closely match regional patterns of biodiversity, suggesting that physical barriers to larval dispersal may be a key driver of reef biodiversity. Finally, 21st Century simulations driven by the Community Earth System Model (CESM

  5. Soil water content assessment: seasonal effects on the triangle method

    NASA Astrophysics Data System (ADS)

    Maltese, A.; Capodici, F.; Ciraolo, G.; La Loggia, G.; Cammalleri, C.

    2016-10-01

    Among indirect estimations of the soil water content in the upper layer, the "triangle method" is based on the relationship between the optical and thermal features sensed via Earth Observation. These features are controlled by water content at surface and within root zone, but also by meteorological forcing including air temperature and humidity, and solar radiation. Night and day-time MODIS composite land-surface temperature (LST) allowed applying the thermal admittance version of the method; by taking into account the temporal admittance of the soil, this version was previously found achieving high accuracy in estimate the soil water content at high spatial resolution within a short time period (a single irrigation season). In this study, the method has been applied on a long time series to analyse the seasonal influence of the meteorological forcing on the triangle method index (or temperature vegetation index, TVX). The Imera Meridionale hydrological basin (≍ 2000 km2, Sicily) has been chosen to test the method over a decade time series, since its climate varies during the year from arid to temperate. The climate is arid for ≍3-7 months (from April-May to August- October) depending on altitude. The temporal analysis reveals that NDVI and LST pairs moves circularly within the optical and thermal diachronic feature space. Concordantly, the boundaries of the triangle move during the seasons. Results suggest that the contribution of soil water content fluctuations need to be isolated from other environmental stress factors, or at least, the conceptual meaning of TVX have to be better interpreted.

  6. The Verification and Validation of the Ray-tracing of Bag of Triangles (BoTs)

    DTIC Science & Technology

    2015-02-01

    programs were created to accommodate each component of this project. The first program created all possible triangles (BoTs) given a bounding box and...possible triangles within bounding box (1, 1, 1) with step size of 0.5 ........................... 2 Fig. 2 Rays fired at triangle...6 Fig. 7 Data for the percentage of successes for the bounding box (2, 2, 2) with step size 1.5

  7. f2(1810 ) as a triangle singularity

    NASA Astrophysics Data System (ADS)

    Xie, Ju-Jun; Geng, Li-Sheng; Oset, E.

    2017-02-01

    We perform calculations showing that a source producing K*K¯* in J =2 and L =0 gives rise to a triangle singularity at 1810 MeV with a width of about 200 MeV from the mechanism K*→π K and then K K¯* merging into the a1(1260 ) resonance. We suggest that this is the origin of the present f2(1810 ) resonance and propose to look at the π a1(1260 ) mode in several reactions to clarify the issue.

  8. Membrane triangles with corner drilling freedoms. I - The EFF element

    NASA Technical Reports Server (NTRS)

    Alvin, Ken; De La Fuente, Horacio M.; Haugen, Bjorn; Felippa, Carlos A.

    1992-01-01

    The formulation of 3-node 9-DOF membrane elements with normal-to-element-plane rotations (drilling freedoms) is examined in the context of parametrized variational principles. In particular, attention is given to the application of the extended free formulation (EFF) to the construction of a triangular membrane element with drilling freedoms that initially has complete quadratic polynomial expansions in each displacement component. The main advantage of the EFF over the free formulation triangle is that an explicit form is obtained for the higher-order stiffness.

  9. A magic triangle for experimental phasing of macromolecules.

    PubMed

    Beck, Tobias; Krasauskas, Andrius; Gruene, Tim; Sheldrick, George M

    2008-11-01

    Obtaining phase information for the solution of macromolecular structures is still one of the bottlenecks in X-ray crystallography. 5-Amino-2,4,6-triiodoisophthalic acid (I3C), in which three covalently bound iodines form an equilateral triangle, was incorporated into proteins in order to obtain phases by single-wavelength anomalous dispersion (SAD). An improved binding capability compared with simple heavy-metal ions, ready availability, improved recognition of potential heavy-atom sites and low toxicity make I3C particularly suitable for experimental phasing.

  10. Numerical approximation of weakly singular integrals on a triangle

    NASA Astrophysics Data System (ADS)

    Serafini, Giada

    2016-10-01

    In this paper, we propose product cubature rules based on the polynomial approximation in order to evaluate the following integrals I (F ;y )= ∫TK (x ,y ) F (x )ω (x )d x , where x = (x1, x2), y = (y1, y2), K is a "weakly"singular or a "nearly"singular kernel, T the domain T is the triangle of vertices (0, 0), (0, 1), (1, 0), f is a given bivariate function defined on T and ω is a proper weight function.

  11. Environmental Pollution from Illegal Waste Disposal and Health Effects: A Review on the “Triangle of Death”

    PubMed Central

    Triassi, Maria; Alfano, Rossella; Illario, Maddalena; Nardone, Antonio; Caporale, Oreste; Montuori, Paolo

    2015-01-01

    The term “triangle of death” was used for the first time by Senior and Mazza in the journal The Lancet Oncology referring to the eastern area of the Campania Region (Southern Italy) which has one of the worst records of illegal waste dumping practices. In the past decades, many studies have focused on the potential of illegal waste disposal to cause adverse effects on human health in this area. The great heterogeneity in the findings, and the bias in media communication has generated great healthcare doubts, anxieties and alarm. This paper addresses a review of the up-to-date literature on the “triangle of death”, bringing together the available information on the occurrence and severity of health effects related to illegal waste disposal. The Scopus database was searched using the search terms “waste”, “Campania”, “Naples”, “triangle of death” and “human biomonitoring”. Despite the methodological and sampling heterogeneity between the studies, this review examines the evidence from published data concerning cancer incidence, childhood mortality and birth defects, so that the current situation, knowledge gaps and research priorities can be established. The review aims to provide a contribution to the scientific community, and to respond to the concerns of the general population. PMID:25622140

  12. Assessment of Contributions to Patient Safety Knowledge by the Agency for Healthcare Research and Quality-Funded Patient Safety Projects

    PubMed Central

    Sorbero, Melony E S; Ricci, Karen A; Lovejoy, Susan; Haviland, Amelia M; Smith, Linda; Bradley, Lily A; Hiatt, Liisa; Farley, Donna O

    2009-01-01

    Objective To characterize the activities of projects funded in Agency for Healthcare Research and Quality (AHRQ)' patient safety portfolio and assess their aggregate potential to contribute to knowledge development. Data Sources Information abstracted from proposals for projects funded in AHRQ' patient safety portfolio, information on safety practices from the AHRQ Evidence Report on Patient Safety Practices, and products produced by the projects. Study Design This represented one part of the process evaluation conducted as part of a longitudinal evaluation based on the Context–Input–Process–Product model. Principal Findings The 234 projects funded through AHRQ' patient safety portfolio examined a wide variety of patient safety issues and extended their work beyond the hospital setting to less studied parts of the health care system. Many of the projects implemented and tested practices for which the patient safety evidence report identified a need for additional evidence. The funded projects also generated a substantial body of new patient safety knowledge through a growing number of journal articles and other products. Conclusions The projects funded in AHRQ' patient safety portfolio have the potential to make substantial contributions to the knowledge base on patient safety. The full value of this new knowledge remains to be confirmed through the synthesis of results. PMID:21456108

  13. Neonicotinoids impact bumblebee colony fitness in the field; a reanalysis of the UK's Food & Environment Research Agency 2012 experiment.

    PubMed

    Goulson, Dave

    2015-01-01

    The causes of bee declines remain hotly debated, particularly the contribution of neonicotinoid insecticides. In 2013 the UK's Food & Environment Research Agency made public a study of the impacts of exposure of bumblebee colonies to neonicotinoids. The study concluded that there was no clear relationship between colony performance and pesticide exposure, and the study was subsequently cited by the UK government in a policy paper in support of their vote against a proposed moratorium on some uses of neonicotinoids. Here I present a simple re-analysis of this data set. It demonstrates that these data in fact do show a negative relationship between both colony growth and queen production and the levels of neonicotinoids in the food stores collected by the bees. Indeed, this is the first study describing substantial negative impacts of neonicotinoids on colony performance of any bee species with free-flying bees in a field realistic situation where pesticide exposure is provided only as part of normal farming practices. It strongly suggests that wild bumblebee colonies in farmland can be expected to be adversely affected by exposure to neonicotinoids.

  14. The first ANDES elements: 9-DOF plate bending triangles

    NASA Technical Reports Server (NTRS)

    Militello, Carmelo; Felippa, Carlos A.

    1991-01-01

    New elements are derived to validate and assess the assumed natural deviatoric strain (ANDES) formulation. This is a brand new variant of the assumed natural strain (ANS) formulation of finite elements, which has recently attracted attention as an effective method for constructing high-performance elements for linear and nonlinear analysis. The ANDES formulation is based on an extended parametrized variational principle developed in recent publications. The key concept is that only the deviatoric part of the strains is assumed over the element whereas the mean strain part is discarded in favor of a constant stress assumption. Unlike conventional ANS elements, ANDES elements satisfy the individual element test (a stringent form of the patch test) a priori while retaining the favorable distortion-insensitivity properties of ANS elements. The first application of this formulation is the development of several Kirchhoff plate bending triangular elements with the standard nine degrees of freedom. Linear curvature variations are sampled along the three sides with the corners as gage reading points. These sample values are interpolated over the triangle using three schemes. Two schemes merge back to conventional ANS elements, one being identical to the Discrete Kirchhoff Triangle (DKT), whereas the third one produces two new ANDES elements. Numerical experiments indicate that one of the ANDES element is relatively insensitive to distortion compared to previously derived high-performance plate-bending elements, while retaining accuracy for nondistorted elements.

  15. Assembling molecular Sierpiński triangle fractals.

    PubMed

    Shang, Jian; Wang, Yongfeng; Chen, Min; Dai, Jingxin; Zhou, Xiong; Kuttner, Julian; Hilt, Gerhard; Shao, Xiang; Gottfried, J Michael; Wu, Kai

    2015-05-01

    Fractals, being "exactly the same at every scale or nearly the same at different scales" as defined by Benoit B. Mandelbrot, are complicated yet fascinating patterns that are important in aesthetics, mathematics, science and engineering. Extended molecular fractals formed by the self-assembly of small-molecule components have long been pursued but, to the best of our knowledge, not achieved. To tackle this challenge we designed and made two aromatic bromo compounds (4,4″-dibromo-1,1':3',1″-terphenyl and 4,4‴-dibromo-1,1':3',1″:4″,1‴-quaterphenyl) to serve as building blocks. The formation of synergistic halogen and hydrogen bonds between these molecules is the driving force to assemble successfully a whole series of defect-free molecular fractals, specifically Sierpiński triangles, on a Ag(111) surface below 80 K. Several critical points that govern the preparation of the molecular Sierpiński triangles were scrutinized experimentally and revealed explicitly. This new strategy may be applied to prepare and explore various planar molecular fractals at surfaces.

  16. Triangle, square and delta-chain based cobalt tetrazolate magnets.

    PubMed

    Yao, Ru-Xin; Qin, Ying-Lian; Ji, Fang; Zhao, Yan-Fei; Zhang, Xian-Ming

    2013-05-14

    Three novel tetrazole-based frustrated magnets, namely, Co3(OH)2(3-ptz)2(SO4)(H2O)4 (1), Co2(OH)(tzba)(H2O)4 (2) and [Co(OH)(tta)] (3) (3-ptz = 5-(3-pyridyl) tetrazole, H2tzba = 4-(1H-tetrazol-5-yl) benzoic acid, Htta = 1H-tetrazole) were hydrothermal synthesized and magnetically characterized. Compound 1 is a 2D (4,4) layered structure assembled by sulfate capped triangular [Co3(μ3-OH)(μ3-SO4)] clusters and in situ synthesized μ3-3-ptz ligands. Compound 2 features Co3(μ3-OH) triangle based magnetic Δ-chains linked with in situ generated μ5-tzba ligands to form a 2D layer. Compound 3 is a uninodal eight-connected body-centered-cubic (bcu) 3D network with square Co4O4 clusters as nodes and μ4-tta ligands as linkers. Interestingly, spin frustration was observed in these complexes due to inherent spin competition in triangle, Δ-chain and square. Magnetic studies show that 1 behaves as antiferromagnet, while 2 and 3 exhibits spin canting and long-range magnetic ordering.

  17. Is chronic groin pain a Bermuda triangle of sports medicine?

    PubMed

    Šebečić, Božidar; Japjec, Mladen; Janković, Saša; Vencel Čuljak; Dojčinović, Bojan; Starešinić, Mario

    2014-12-01

    Chronic groin pain is one the most complex conditions encountered in the field of sports medicine. Conservative treatment is long lasting and the result of treatment is often uncer- tain and symptom recurrences are common, which can be very frustrating for both the patient and the physician. The complex etiology and uncertainties during treatment of chronic groin pain is the reason why some authors call it the Bermuda Triangle of sports medicine. In our prospective, 7-year study, 114 athletes with chronic groin pain resistant to conservative therapy were treated surgically. In 109 athletes with sports hernia, we performed nerve neurolysis along with resection of the genital branch of the genitofemoral nerve and we also reinforced the posterior wall of inguinal canal using a modified Shouldice technique. In 26 athletes that had concomitant adductor tendinosis and in 5 athletes with isolated tendinosis we performed tenotomy. Eighty-one of 83 patients with isolated sports hernia returned to sports within a mean of 4.4 (range, 3-16) weeks. Thirty-one athletes with adductor tenotomy returned to sports activity within a mean of 11.8 (range, 10-15) weeks. If carefully diagnosed using detailed history taking, physical examination and correct imaging techniques, chronic groin pain can be treated very successfully and quickly, so it need not be a Bermuda Triangle of sports medicine.

  18. A simple device to illustrate the Einthoven triangle.

    PubMed

    Jin, Benjamin E; Wulff, Heike; Widdicombe, Jonathan H; Zheng, Jie; Bers, Donald M; Puglisi, Jose L

    2012-12-01

    The Einthoven triangle is central to the field of electrocardiography, but the concept of cardiac vectors is often a difficult notion for students to grasp. To illustrate this principle, we constructed a device that recreates the conditions of an ECG reading using a battery to simulate the electrical vector of the heart and three voltmeters for the main electrocardiographic leads. Requiring minimal construction with low cost, this device provides hands-on practice that enables students to rediscover the principles of the Einthoven triangle, namely, that the direction of the cardiac dipole can be predicted from the deflections in any two leads and that lead I + lead III = lead II independent of the position of heart's electrical vector. We built a total of 6 devices for classes of 30 students and tested them in the first-year Human Physiology course at the University of California-Davis School of Medicine. Combined with traditional demonstrations with ECG machines, this equipment demonstrated its ability to help medical students obtain a solid foundation of the basic principles of electrocardiography.

  19. Algorithmic Self-Assembly of DNA Sierpinski Triangles

    PubMed Central

    Rothemund, Paul W. K; Papadakis, Nick

    2004-01-01

    Algorithms and information, fundamental to technological and biological organization, are also an essential aspect of many elementary physical phenomena, such as molecular self-assembly. Here we report the molecular realization, using two-dimensional self-assembly of DNA tiles, of a cellular automaton whose update rule computes the binary function XOR and thus fabricates a fractal pattern—a Sierpinski triangle—as it grows. To achieve this, abstract tiles were translated into DNA tiles based on double-crossover motifs. Serving as input for the computation, long single-stranded DNA molecules were used to nucleate growth of tiles into algorithmic crystals. For both of two independent molecular realizations, atomic force microscopy revealed recognizable Sierpinski triangles containing 100–200 correct tiles. Error rates during assembly appear to range from 1% to 10%. Although imperfect, the growth of Sierpinski triangles demonstrates all the necessary mechanisms for the molecular implementation of arbitrary cellular automata. This shows that engineered DNA self-assembly can be treated as a Turing-universal biomolecular system, capable of implementing any desired algorithm for computation or construction tasks. PMID:15583715

  20. A metallic carbon consisting of helical carbon triangle chains.

    PubMed

    Hu, Meng; Dong, Xiao; Pan, Yilong; Xu, Bo; Yu, Dongli; He, Julong

    2014-06-11

    Carbon is the basis of life on Earth and many technological applications. We computationally report an sp3-hybridization-assembled carbon allotrope constructed by helical triangle chains through the evolutionary structure prediction method. Different from the previous metallic carbon K4, this carbon, called Tri-carbon, is mechanically and dynamically stable at ambient pressure. High ring strain in the carbon triangle blocks forces the C–C bond in Tri-carbon to be a 'bent bond', rather than the common single bond in diamond or the π bond in graphite. Unlike the unstrained sp3-hybridization in semiconductive diamond, valence electrons in the 'bent bond' are recombined to form extremely anisotropic sp3-hybridized bonds, thus conferring metallicity to Tri-carbon. Under nonhydrostatic conditions, Tri-carbon shows significantly anisotropic ideal tensile and compressive strength. Tri-carbon is expected to be achieved through chemical methods, such as the synthesis of cyclopropane derivatives (e.g. triangulane and tetrahedrane). These methods eliminate the restriction of ultra-high pressure to obtain metallic carbons.

  1. The International Agency for Research on Cancer (IARC) evaluation of the carcinogenicity of outdoor air pollution: focus on China.

    PubMed

    Loomis, Dana; Huang, Wei; Chen, Guosheng

    2014-04-01

    The International Agency for Research on Cancer (IARC) has classified outdoor air pollution and the particulate matter (PM) in outdoor air pollution as carcinogenic to humans, as based on sufficient evidence of carcinogenicity in humans and experimental animals and strong support by mechanistic studies. The data with important contributions to the evaluation are reviewed, highlighting the data with particular relevance to China, and implications of the evaluation with respect to China are discussed. The air pollution levels in Chinese cities are among the highest observed in the world today and frequently exceed health-based national and international guidelines. Data from high-quality epidemiologic studies in Asia, Europe, and North America consistently show positive associations between lung cancer and PM exposure and other indicators of air pollution, which persist after adjustment for important lung cancer risk factors, such as tobacco smoking. Epidemiologic data from China are limited but nevertheless indicate an increased risk of lung cancer associated with several air pollutants. Excess cancer risk is also observed in experimental animals exposed to polluted outdoor air or extracted PM. The exposure of several species to outdoor air pollution is associated with markers of genetic damage that have been linked to increased cancer risk in humans. Numerous studies from China, especially genetic biomarker studies in exposed populations, support that the polluted air in China is genotoxic and carcinogenic to humans. The evaluation by IARC indicates both the need for further research into the cancer risks associated with exposure to air pollution in China and the urgent need to act to reduce exposure to the population.

  2. AN OVERVIEW OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY'S SMALL SYSTEMS RESEARCH AND DEVELOPMENT CENTER AT THE EPA TEST AND EVALUATION FACILITY IN CINCINNATI, OHIO

    EPA Science Inventory

    The U.S. Environmental Protection Agency (U.S. EPA) landmark Safe Drinking Water Act Amendments of 1996 promised to bring and provide safe drinking water to all Americans. Since that time many have not understood or appreciated EPA involvement in the research and development (...

  3. [Pharmaceuticals and Medical Devices Agency (PMDA)'s new action for Pharmaceutical Affairs Consultation on Research and Development (R&D) Strategy].

    PubMed

    Masuyama, Koichi

    2013-01-01

    Universities, research institutions, and venture capitals that possess promising "seed" research or technologies in Japan, are not always familiar with development strategies that lead to commercialization of the products in spite of their excellent science and research. In order to create innovative pharmaceuticals and medical devices originating from Japan, Pharmaceuticals and Medical Devices Agency (PMDA) launched new scientific consultation service, named 'Pharmaceutical Affairs Consultation on R&D Strategy' for universities, research institutions, and venture capitals on July 1, 2011. Through these consultations, the guidance and advice on the tests needed in the early development stage and the necessary clinical trials would be provided toward commercialization.

  4. In Search of More Triangle Centres. a Source of Classroom Projects in Euclidean Geometry

    ERIC Educational Resources Information Center

    Abu-Saymeh, S.; Hajja, M.

    2005-01-01

    A point "E" inside a triangle "ABC" can be coordinatized by the areas of the triangles "EBC," "ECA," and "EAB." These are called the barycentric coordinates of "E." It can also be coordinatized using the six segments into which the cevians through "E" divide the sides of "ABC," or the six angles into which the cevians through "E" divide the angles…

  5. TRANSL8GDECIM8. Data Translation and Filtering for Large 3D Triangle Mesh Models

    SciTech Connect

    Janucik, F.X.; Ross, D.M.

    1993-09-01

    The TRANSL8GDECIM8 system consists of two programs: TRANSL8G and DECIM8. The TRANSL8G program facilitates the interchange, topology generation, error checking, and enhancement of large 3D triangle meshes. Such data is frequently used to represent conceptual designs, scientific visualization volume modeling, or discrete sample data. Interchange is provided between several popular commercial and defacto standard geometry formats. Error checking is included to identify duplicate and zero area triangles. Model enhancement features include common vertex joining, consistent triangle vertex ordering, vertex normal vector averaging, and triangle strip generation. Many of the traditional O(n squared) algorithms required to provide the above features have been recast and are O(n) which support large mesh sizes. The DECIM8 program is based on a data filter algorithm that significantly reduces the number of triangles required to represent three dimensional (3D) models of geometry, scientific visualization results, and discretely sampled data. The algorithm uses a combined incremental and iterative strategy. It eliminates local patches of triangles whose geometries are not appreciably different and replaces them with fewer larger triangles. The algorithm has been used to reduce triangles in large conceptual design models to facilitate virtual walk throughs and to enable interactive viewing of large 3D iso-surface volume visualizations.

  6. A templating guest sorts out a molecular triangle from a dimer-trimer constitutional dynamic library.

    PubMed

    Rancan, Marzio; Dolmella, Alessandro; Seraglia, Roberta; Orlandi, Simonetta; Quici, Silvio; Armelao, Lidia

    2012-03-25

    Cu(II) and a bis-β-diketone ligand generate a small constitutional dynamic library (CDL). The designed introduction of a well suited guest drives the self-sorting of the system toward a supramolecular triangle. Alternatively, the triangle self-assembly is templated by the same guest in a one-pot synthesis.

  7. 76 FR 17327 - 100th Anniversary of the Triangle Shirtwaist Factory Fire

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-29

    ... the Triangle Shirtwaist Factory Fire By the President of the United States of America A Proclamation On March 25, 1911, a fire spread through the cramped floors of the Triangle Shirtwaist Factory in... fire escapes, and were trapped by long tables and bulky machines. As bystanders watched in...

  8. Revisiting the Pink Triangle Exercise: An Exploration of Experiential Learning in Graduate Social Work Education

    ERIC Educational Resources Information Center

    Pugh, Greg L.

    2014-01-01

    The pink triangle exercise is an example of an experiential learning exercise that creates cognitive dissonance and deep learning of unrealized internalized biases among social work students. Students wear a button with a pink triangle on it for 1 day and write a reflection paper. The exercise increases self-awareness, cultural competence, and the…

  9. Engineered nano materials and the U.S. Environmental Protection Agency: Research at the Western Ecology Division in Oregon, USA

    EPA Science Inventory

    Engineered nanoparticles represent a unique hazard to human health and the environment because their inherent characteristics differ significantly from commonly used chemicals and bulk forms of materials. The U.S. Environmental Protection Agency (EPA) is responsible for protecti...

  10. Endoscopic Endonasal Approach to the Middle Cranial Fossa through the Cavernous Sinus Triangles: Anatomical Considerations

    PubMed Central

    KOMATSU, Fuminari; ODA, Shinri; SHIMODA, Masami; IMAI, Masaaki; SHIGEMATSU, Hideaki; KOMATSU, Mika; TSCHABITSCHER, Manfred; MATSUMAE, Mitsunori

    2014-01-01

    The lateral limit of endoscopic endonasal surgery has yet to be defined. The aim of this study was to investigate the lateral limit of endoscopic endonasal surgery at the level of the sphenoid sinus. Access from the sphenoid sinus to the middle cranial fossa through the cavernous sinus triangles was evaluated by cadaver dissection. Anatomical analysis demonstrated that the medial temporal dura mater was exposed through the anterior area of the clinoidal triangle, anteromedial triangle, and superior area of the anterolateral triangle, indicating potential corridors to the middle cranial fossa. This study suggests that the cavernous sinus triangles are applicable in selected cases to manage middle cranial fossa lesions by endoscopic endonasal surgery. PMID:25446385

  11. Quark mixing sum rules and the right unitarity triangle

    SciTech Connect

    Antusch, Stefan; Spinrath, Martin; King, Stephen F.; Malinsky, Michal

    2010-02-01

    In analogy with the recently proposed lepton mixing sum rules, we derive quark mixing sum rules for the case of hierarchical quark mass matrices with 1-3 texture zeros, in which the separate up and down-type 1-3 mixing angles are approximately zero, and V{sub ub} is generated from V{sub cb} as a result of 1-2 up-type quark mixing. Using the sum rules, we discuss the phenomenological viability of such textures, including up to four texture zeros, and show how the right-angled unitarity triangle, i.e., {alpha}{approx_equal}90 deg., can be accounted for by a remarkably simple scheme involving real mass matrices apart from a single element being purely imaginary. In the framework of grand unified theories, we show how the quark and lepton mixing sum rules may combine to yield an accurate prediction for the reactor angle.

  12. The Triangle of the Space Launch System Operations

    NASA Astrophysics Data System (ADS)

    Fayolle, Eric

    2010-09-01

    Firemen know it as “fire triangle”, mathematicians know it as “golden triangle”, sailormen know it as “Bermuda triangle”, politicians know it as “Weimar triangle”… This article aims to present a new aspect of that shape geometry in the space launch system world: “the triangle of the space launch system operations”. This triangle is composed of these three following topics, which have to be taken into account for any space launch system operation processing: design, safety and operational use. Design performance is of course taking into account since the early preliminary phase of a system development. This design performance is matured all along the development phases, thanks to consecutives iterations in order to respect the financial and timing constraints imposed to the development of the system. This process leads to a detailed and precise design to assess the required performance. Then, the operational use phase brings its batch of constraints during the use of the system. This phase is conducted by specific procedures for each operation. Each procedure has sequences for each sub-system, which have to be conducted in a very precise chronological way. These procedures can be processed by automatic way or manual way, with the necessity or not of the implication of operators, and in a determined environment. Safeguard aims to verify the respect of the specific constraints imposed to guarantee the safety of persons and property, the protection of public health and the environment. Safeguard has to be taken into account above the operational constraints of any space operation, without forgetting the highest safety level for the operators of the space operation, and of course without damaging the facilities or without disturbing the external environment. All space operations are the result of a “win-win” compromise between these three topics. Contrary to the fire triangle where one of the topics has to be suppressed in order to avoid the

  13. [Patient - doctor relationship from perspective of the Karpman drama triangle].

    PubMed

    Samborska-Sablik, Anna; Sablik, Zbigniew

    2016-11-25

    Patients' confidence in doctors has been decreased for last years despite successes of Polish medicine. It seems to be related to particular conditions of patient - doctor relationship and patient's negative emotions may frequently burden it from the beginning. They may allow an interpersonal game, the Drama Triangle, to appear in the relationship. 3 persons are typically involved in the game: a victim, a persecutor and a rescuer. All of them neither feel guilty about the situation nor their activities are aimed at solving the crucial problem. It maintains continuation of the game. Both patient and doctor are capable to attend the game as any of the person mentioned above. Authors of the article think frameworks of organization of the health care system should permit doctors not only to tackle main disease but also to devote time individually tailored to patient's emotional problems.

  14. 76 FR 37115 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-24

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  15. 77 FR 58389 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-20

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  16. 78 FR 5805 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-28

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. ] SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  17. 76 FR 67734 - Agency Information Collection Activities; Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-02

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities; Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  18. 75 FR 53305 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-31

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  19. 75 FR 57033 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-17

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  20. 76 FR 70726 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-15

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  1. 76 FR 4354 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-25

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  2. 76 FR 17864 - Agency Information Collection Activities; Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-31

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities; Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  3. 78 FR 9051 - Agency Information Collection Activities; Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-07

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities; Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  4. 76 FR 46811 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-03

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  5. 76 FR 72931 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-28

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY: This notice announces the intention of the Agency for Healthcare Research and...

  6. Forum Guide to Supporting Data Access for Researchers: A Local Education Agency Perspective. NFES 2014-801

    ERIC Educational Resources Information Center

    National Forum on Education Statistics, 2014

    2014-01-01

    This document recommends a set of core practices, operations, and templates that can be adopted and adapted by local education agencies (LEAs) as they consider how to respond to requests for both new and existing data about the education enterprise. These recommendations reflect core best practices for: (1) managing the flow of requests; (2)…

  7. Courant-Sharp Eigenvalues for the Equilateral Torus, and for the Equilateral Triangle

    NASA Astrophysics Data System (ADS)

    Bérard, Pierre; Helffer, Bernard

    2016-12-01

    We address the question of determining the eigenvalues {λn} (listed in nondecreasing order, with multiplicities) for which Courant's nodal domain theorem is sharp i.e., for which there exists an associated eigenfunction with {n} nodal domains (Courant-sharp eigenvalues). Following ideas going back to Pleijel (1956), we prove that the only Courant-sharp eigenvalues of the flat equilateral torus are the first and second, and that the only Courant-sharp Dirichlet eigenvalues of the equilateral triangle are the first, second, and fourth eigenvalues. In the last section we sketch similar results for the right-angled isosceles triangle and for the hemiequilateral triangle.

  8. The A.A.A.A. [American Association of Advertising Agencies] Educational Foundation Grants: Purpose, Results, Application; On the 22 Research Grants Awarded by the Foundation from 1968 through 1973, with Bibliographies of Published Material Which Resulted from the Research.

    ERIC Educational Resources Information Center

    Tinkham, Spencer F.

    The Educational Foundation of the American Association of Advertising Agencies was established by the Association's board to foster the accomplishment of six major goals: to create a bridge between advertising and university research, to attract top young people to the study of advertising, to raise the academic stature of advertising, to enlarge…

  9. Clinical use of medical devices in the 'Bermuda Triangle'.

    PubMed

    Kessler, Larry; Ramsey, Scott D; Tunis, Sean; Sullivan, Sean D

    2004-01-01

    The pace of medical technological development shows no sign of abating. Analyzing the effect of major federal health agencies on the availability of such technology is critical. This paper describes functions of three government health agencies: the Centers for Medicare and Medicaid Services (CMS), the Food and Drug Administration (FDA), and the National Institutes of Health (NIH). Certain medical technologies fall into gaps between these agencies, which pose challenges in today's era of demand for evidence-based medicine. We suggest new policy and pragmatic strategies that can close the gaps and move decision making relevant to technology forward more rapidly than is now the case.

  10. Geology and resources of the Tar Sand Triangle, southeastern Utah

    SciTech Connect

    Dana, G.F.; Oliver, R.L.; Elliott, J.R.

    1984-05-01

    The Tar Sand Triangle is located in southeastern Utah between the Dirty Devil and Colorado Rivers and covers an area of about 200 square miles. The geology of the area consists of gently northwest dipping strata exposed in the box canyons and slopes of the canyonlands morphology. Strata in the area range in age from Jurassic to Permian. The majority of tar sand saturation is found in the Permian White Rim Sandstone Member of the Cutler Formation. The White Rim Sandstone Member consists of a clean, well-sorted sandstone which was deposited in a shallow marine environment. Resources were calculated from analytical data from the three coreholes drilled by the Laramie Energy Technology Center and other available data. The total in-place resources, determined from this study, are 6.3 billion barels. Previous estimates ranged from 2.9 to 16 million barrels. More coring and analyses will be necessary before a more accurate determination of resources can be attempted. 8 references, 11 figures, 7 tables.

  11. Treeness triangles: visualizing the loss of phylogenetic signal.

    PubMed

    White, W T; Hills, S F; Gaddam, R; Holland, B R; Penny, David

    2007-09-01

    It is well known that molecular data "saturates" with increasing sequence divergence (thereby losing phylogenetic information) and that in addition the accumulation of misleading information due to chance similarities or to systematic bias may accompany saturation as well. Exploratory data analysis methods that can quantify the extent of signal loss or convergence for a given data set are scarce. Such methods are needed because genomics delivers very long sequence alignments spanning substantial phylogenetic depth, where site saturation may be compounded by systematic biases or other alternative signals. Here we introduce the Treeness Triangle (TT) graph, in which signals detectable by Hadamard (spectral) analysis are summed into 3 categories--those supporting 1) external and 2) internal branches in the optimal tree, in addition to 3) the residuals (potential internal branches not present in the optimal tree). These 3 values are plotted in a standard ternary coordinate system. The approach is illustrated with simulated and real data sets, the latter from complete chloroplast genomes, where potential problems of paralogy or lateral gene acquisition can be excluded. The TT uncovers the divergence-dependent loss of phylogenetic signal as subsets of chloroplast genomes are investigated that span increasingly deeper evolutionary timescales. The rate of signal loss (or signal retention) varies with the gene and/or the method of analysis.

  12. Bermuda Triangle for the liver: alcohol, obesity, and viral hepatitis.

    PubMed

    Zakhari, Samir

    2013-08-01

    Despite major progress in understanding and managing liver disease in the past 30 years, it is now among the top 10 most common causes of death globally. Several risk factors, such as genetics, diabetes, obesity, excessive alcohol consumption, viral infection, gender, immune dysfunction, and medications, acting individually or in concert, are known to precipitate liver damage. Viral hepatitis, excessive alcohol consumption, and obesity are the major factors causing liver injury. Estimated numbers of hepatitis B virus (HBV) and hepatitis C virus (HCV)-infected subjects worldwide are staggering (370 and 175 million, respectively), and of the 40 million known human immunodeficiency virus positive subjects, 4 and 5 million are coinfected with HBV and HCV, respectively. Alcohol and HCV are the leading causes of end-stage liver disease worldwide and the most common indication for liver transplantation in the United States and Europe. In addition, the global obesity epidemic that affects up to 40 million Americans, and 396 million worldwide, is accompanied by an alarming incidence of end-stage liver disease, a condition exacerbated by alcohol. This article focuses on the interactions between alcohol, viral hepatitis, and obesity (euphemistically described here as the Bermuda Triangle of liver disease), and discusses common mechanisms and synergy.

  13. James Williamson d/b/a Golden Triangle Builders Information Sheet

    EPA Pesticide Factsheets

    James Williamson d/b/a Golden Triangle Builders (the Company) is located in Pittsburgh, Pennsylvania. The settlement involves renovation activities conducted at property constructed prior to 1978, located in Pittsburgh, Pennsylvania.

  14. Reverses of the continuous triangle inequality for Bochner integral in complex Hilbert spaces

    NASA Astrophysics Data System (ADS)

    Dragomir, Sever S.

    2007-05-01

    Some reverses of the continuous triangle inequality for Bochner integral of vector-valued functions in complex Hilbert spaces are given. Applications for complex-valued functions are provided as well.

  15. Research and development of models and instruments to define, measure, and improve shared information processing within government oversight agencies

    SciTech Connect

    Not Available

    1990-01-01

    Plans to study is at the very forefront of information systems and management research. The first phase of the research objective is exploratory. Exploratory research is longitudinal. During this phase of research, we form objectives, construct qualitative models, emphasize defining relationships and comparisons, make observations to draw implications, corroborate findings, and define directions. The second and third phases are confirmatory. Confirmatory research is cross-sectional. Through confirmatory research we form hypotheses, construct quantitative models, emphasize measurement and evaluation, set up and run experiments, verify results, and draw conclusions. This annual performance report describes the previous years' research efforts and the plan for the upcoming year.

  16. Theoretical Study on the Geometric and Dynamic Performance of Ring Spinning Triangle with Finite Element Method

    NASA Astrophysics Data System (ADS)

    Yan Li, Sheng; Gang Xu, Bin; Ming Tao, Xiao

    2010-05-01

    Spun yarns are used worldwide for making a wide range of textiles and apparel. The spun yarn is formed by twisting an assembly of short fibers in order to obtain sufficient strength for the downstream processing. In spinning triangle, the fibers will be finally twisted into yarn. Thus the properties of yarn were greatly influenced by the shape and the fiber stress distribution of the spinning triangle. In this study, the theoretical issue of ring spinning triangle was examined by using the finite element method. In order to address more complicated condition of the spinning triangle, some important factors ignored previously, including the yarn spinning torque, the inclined spinning tension and fiber torsional strains, were considered. With the input of different spinning parameters, such as yarn count (yarn linear density), yarn twist, spinning tension and torque, some essential parameters of the spinning triangle, including the fiber tension distribution, fiber torsion distribution and the height of the spinning triangle, were numerically obtained and their quantitative relationships were discussed in detail.

  17. 78 FR 52925 - Agency Information Collection

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-27

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request. AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION... value of healthcare services and with respect to quality measurement and improvement. 42 U.S.C....

  18. Government Agencies

    DTIC Science & Technology

    1988-05-01

    manufacturers. The Navy has a major in- house design capability for ships; the government does not possess such a capability for aircraft or other weapon systems...the Coast Guard, government agencies acquire a wide variety of ships, ranging from sophisticated submarines and nuclear aircraft carriers to much...the initial phase a review was made of written material relating to government procedures in U.S. Government agencies for acquiring vessels, aircraft

  19. SEPARATIONS RESEARCH AT THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY - TOWARDS RECOVERY OF VOCS AND METALS USING MEMBRANES AND ADSORPTION PROCESSES

    EPA Science Inventory

    The USEPA's National Risk Management Research Laboratory is investigating new separations materials and processes for removal and recovery of volatile organic compounds (VOCs) and toxic metals from wastestreams and industrial process streams. Research applying membrane-based perv...

  20. A Strategic Approach for Funding Research: The Agency for Healthcare Research and Quality’s Patient Safety Initiative 2000-2004

    DTIC Science & Technology

    2005-01-01

    Medical Education and the National Advisory Council on Nursing Education and Practice notes that practice approaches have their foundation in the...Publication No. 04-RG005. Rockville, MD: The Agency; Dec 2003. 22. Council on Graduate Medical Education, National Advisory Council on Nursing Education and

  1. Water-quality data for selected North Carolina streams and reservoirs in the Triangle Area Water Supply Monitoring Project, 1988-92

    USGS Publications Warehouse

    Garrett, Ronald G.; Taylor, John E.; Middleton, Terry L.

    1994-01-01

    The Triangle Area Water Supply Monitoring Project was developed to assess regional water-quality characteristics in drinking-water supplies and to provide a basis for determining trends in water quality for the Research Triangle area, which is one of the fastest growing areas in North Carolina. The study area is in the upper Neuse River Basin and the upper Cape Fear River Basin in the north-central Piedmont Province of the State. Hydrologic data were collected at 21 reservoir sites and 30 stream sites from October 1988 through September 1992 to define water-quality characteristics. The data collected at these sites include streamflow data and approximately 275 physical properties and chemical characteristics of surface water.

  2. AN OVERVIEW OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY'S DRINKING WATER TREATMENT AND DISTRIBUTION SYSTEM RESEARCH PROGRAM

    EPA Science Inventory

    This presentation will provide an overview of drinking water research being conducted by the National Risk Management Research Laboratory (NRMRL) of the U.S. EPA. The Water Supply and Water Resources Division (WSWRD) is an internationally known water research organization establi...

  3. 76 FR 21746 - Agency Information Collection Activities: Proposed Collection; Comment Request; Generic Clearance...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-18

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request; Generic Clearance for the Collection of Qualitative Feedback on Agency Service Delivery AGENCY: Agency for Healthcare Research and Quality (AHRQ), HHS. ACTION:...

  4. First Cross-Sectional Study of Attainment of the Concepts "Equilateral Triangle", "Cutting Tool" and "Noun" by Children 5 to 16 of City A. Report from the Program on Children's Learning and Development. Technical Report No. 287.

    ERIC Educational Resources Information Center

    Klausmeier, Herbert J.; And Others

    Theory and research regarding four levels of concept attainment and three uses of concepts as specified by the conceptual learning and development (CLD) model are described. Assessment batteries were developed to assess each child's level of concept attainment and also the related use of the concepts equilateral triangle, cutting tool, and noun.…

  5. Enhancing Coordination Among the U.S. Preventive Services Task Force, Agency for Healthcare Research and Quality, and National Institutes of Health.

    PubMed

    Murray, David M; Kaplan, Robert M; Ngo-Metzger, Quyen; Portnoy, Barry; Olkkola, Susanne; Stredrick, Denise; Kuczmarski, Robert J; Goldstein, Amy B; Perl, Harold I; O'Connell, Mary E

    2015-09-01

    This paper focuses on the relationships among the U.S. Preventive Services Task Force (USPSTF); Agency for Healthcare Research and Quality (AHRQ); and NIH. After a brief description of the Task Force, AHRQ, NIH, and an example of how they interact, we describe the steps that have been taken recently by NIH to enhance their coordination. We also discuss several challenges that remain and consider potential remedies that NIH, AHRQ, and investigators can take to provide the USPSTF with the data it needs to make recommendations, particularly those pertaining to behavioral interventions.

  6. A Summary of the Rendezvous, Proximity Operations, Docking, and Undocking (RPODU) Lessons Learned from the Defense Advanced Research Project Agency (DARPA) Orbital Express (OE) Demonstration System Mission

    NASA Technical Reports Server (NTRS)

    Dennehy, Cornelius J.; Carpenter, James R.

    2011-01-01

    The Guidance, Navigation, and Control (GN&C) Technical Discipline Team (TDT) sponsored Dr. J. Russell Carpenter, a Navigation and Rendezvous Subject Matter Expert (SME) from NASA's Goddard Space Flight Center (GSFC), to provide support to the Defense Advanced Research Project Agency (DARPA) Orbital Express (OE) rendezvous and docking flight test that was conducted in 2007. When that DARPA OE mission was completed, Mr. Neil Dennehy, NASA Technical Fellow for GN&C, requested Dr. Carpenter document his findings (lessons learned) and recommendations for future rendezvous missions resulting from his OE support experience. This report captures lessons specifically from anomalies that occurred during one of OE's unmated operations.

  7. The U.S. Environmental Protection Agency Particulate Matter Health Effects Research Centers Program: a midcourse report of status, progress, and plans.

    PubMed Central

    Lippmann, Morton; Frampton, Mark; Schwartz, Joel; Dockery, Douglas; Schlesinger, Richard; Koutrakis, Petros; Froines, John; Nel, Andre; Finkelstein, Jack; Godleski, John; Kaufman, Joel; Koenig, Jane; Larson, Tim; Luchtel, Dan; Liu, L-J Sally; Oberdorster, Gunter; Peters, Annette; Sarnat, Jeremy; Sioutas, Constantinos; Suh, Helen; Sullivan, Jeff; Utell, Mark; Wichmann, Erich; Zelikoff, Judith

    2003-01-01

    In 1998 Congress mandated expanded U.S. Environmental Protection Agency (U.S. EPA) health effects research on ambient air particulate matter (PM) and a National Research Council (NRC) committee to provide research oversight. The U.S. EPA currently supports intramural and extramural PM research, including five academically based PM centers. The PM centers in their first 2.5 years have initiated research directed at critical issues identified by the NRC committee, including collaborative activities, and sponsored scientific workshops in key research areas. Through these activities, there is a better understanding of PM health effects and scientific uncertainties. Future PM centers research will focus on long-term effects associated with chronic PM exposures. This report provides a synopsis of accomplishments to date, short-term goals (during the next 2.5 years) and longer-term goals. It consists of six sections: biological mechanisms, acute effects, chronic effects, dosimetry, exposure assessment, and the specific attributes of a coordinated PM centers program. PMID:12826479

  8. (PRESENTED AT TSUKUBA, JAPAN) PERSISTENT PERFLUORINATED ORGANIC COMPOUNDS METHOD DEVELOPMENT RESEARCH AT THE U.S. ENVIRONMENTAL PROTECTION AGENCY

    EPA Science Inventory

    PowerPoint presentation summarizing method development research involving the persistent perfluorinated organic compounds. Review of data indicating widespread distribution of these materials and the potential for toxicity.

  9. Using research metrics to evaluate the International Atomic Energy Agency guidelines on quality assurance for R&D

    SciTech Connect

    Bodnarczuk, M.

    1994-06-01

    The objective of the International Atomic Energy Agency (IAEA) Guidelines on Quality Assurance for R&D is to provide guidance for developing quality assurance (QA) programs for R&D work on items, services, and processes important to safety, and to support the siting, design, construction, commissioning, operation, and decommissioning of nuclear facilities. The standard approach to writing papers describing new quality guidelines documents is to present a descriptive overview of the contents of the document. I will depart from this approach. Instead, I will first discuss a conceptual framework of metrics for evaluating and improving basic and applied experimental science as well as the associated role that quality management should play in understanding and implementing these metrics. I will conclude by evaluating how well the IAEA document addresses the metrics from this conceptual framework and the broader principles of quality management.

  10. ACDA’s (Arms Control and Disarmament Agency) Coordination of Federal Arms Control Research and Management of Its External Research Program Still Need Improvement,

    DTIC Science & Technology

    1983-09-30

    MAGEMENT OF ITS EXTERNAL RESERCH PROGRAM ARE STYL INADEQPATE The Arms Control and Disarmament Agency (ACDA) needs to improve the operation of its external...proliferation, conven- tional arms transfers, advanced technology weapons. and nuclear test limitations. In 1980 we reported on ACDA’s problems in ma...0 - Nuclear Test Limitations 719,163 492,509 171,777 - 0 - Non-Nuclear Weapons of Mass Destruc- tion and Advanced Technology Weapons 33,108 53,282

  11. The clinical anatomy of the cephalic vein in the deltopectoral triangle.

    PubMed

    Loukas, M; Myers, C S; Wartmann, Ch T; Tubbs, R S; Judge, T; Curry, B; Jordan, R

    2008-02-01

    Identification and recognition of the cephalic vein in the deltopectoral triangle is of critical importance when considering emergency catheterization procedures. The aim of our study was to conduct a cadaveric study to access data regarding the topography and the distribution patterns of the cephalic vein as it relates to the deltopectoral triangle. One hundred formalin fixed cadavers were examined. The cephalic vein was found in 95% (190 right and left) specimens, while in the remaining 5% (10) the cephalic vein was absent. In 80% (152) of cases the cephalic vein was found emerging superficially in the lateral portion of the deltopectoral triangle. In 30% (52) of these 152 cases the cephalic vein received one tributary within the deltopectoral triangle, while in 70% (100) of the specimens it received two. In the remaining 20% (38) of cases the cephalic vein was located deep to the deltopectoral fascia and fat and did not emerge through the deltopectoral triangle but was identified medially to the coracobrachialis and inferior to the medial border of the deltoid. In addition, in 4 (0.2%) of the specimens the cephalic vein, after crossing the deltopectoral triangle, ascended anterior and superior to the clavicle to drain into the subclavian vein. In these specimens a collateral branch was observed to communicate between the cephalic and external jugular veins. In 65.2% (124) of the cases the cephalic vein traveled with the deltoid branch of the thoracoacromial trunk. The length of the cephalic vein within the deltopectoral triangle ranged from 3.5 cm to 8.2 cm with a mean of 4.8+/-0.7 cm. The morphometric analysis revealed a mean cephalic vein diameter of 0.8+/-0.1 cm with a range of 0.1 cm to 1.2 cm. The cephalic vein is relatively large and constant, usually allowing for easy cannulation.

  12. Microgravity Research, An Agency-Wide Asset: Using NASA-Generated Knowledge to Solve its Own Problems

    NASA Technical Reports Server (NTRS)

    2003-01-01

    The National Center for Microgravity Research (NCMR) is a vital and successful operation, effectively supporting NASA's program in many ways beyond technical monitoring. NCMR is supplying leadership for certain new initiatives important to NASA's future. NASA might regard NCMR as kind of a small laboratory of innovative research management, and should support it generously.

  13. What Research Do State Education Agencies Really Need? The Promise and Limitations of State Longitudinal Data Systems

    ERIC Educational Resources Information Center

    Conaway, Carrie; Keesler, Venessa; Schwartz, Nathaniel

    2015-01-01

    State longitudinal data systems (SLDSs) have created more opportunities than ever before for rigorous research to influence education policy decisions. As state practitioners who play central roles in building and using our states' longitudinal data systems, we are excited about their promise for supporting policymaking and research. Yet, we also…

  14. Longitudinal Research on Children Who Received Early Childhood Special Education Services: The State Education Agency Perspective. Final Report.

    ERIC Educational Resources Information Center

    Markowitz, Joy

    In order to help formulate the research questions for a future study on the long-term outcomes of students with disabilities, this study collected information from eight states concerning their priorities for longitudinal research on students who received special education services under the age of 5 years. State directors of special education in…

  15. An Overview of the “Triangle Method” for Estimating Surface Evapotranspiration and Soil Moisture from Satellite Imagery

    PubMed Central

    Carlson, Toby

    2007-01-01

    An overview of the ‘triangle’ method for estimating soil surface wetness and evapotranspiration fraction from satellite imagery is presented here. The method is insensitive to initial atmospheric and surface conditions, net radiation and atmospheric correction, yet can yield accuracies comparable to other methods. We describe the method first from the standpoint of the how the triangle is observed as obtained from aircraft and satellite image data and then show how the triangle can be created from a land surface model. By superimposing the model triangle over the observed one, pixel values from the image are determined for all points within the triangle. We further show how the stretched (or ‘universal’) triangle can be used to interpret pixel configurations within the triangle, showing how the temporal trajectories of points uniquely describe patterns of land use change. Finally, we conclude the paper with a brief assessment of the method's limitations.

  16. Towards a cooperation between the arts, space science research and the European Space Agency - Preliminary findings of the ESA Topical Team Arts and Sciences (ETTAS)

    NASA Astrophysics Data System (ADS)

    Pell, Sarah Jane; Imhof, Anna Barbara; Waldvogel, Christian; Kotler, J. Michelle; Peljhan, Marko

    2014-12-01

    The arts offer alternative insights into reality, which are explored by science in general, and broadened by the activities conducted by the European Space Agency [4] and other space agencies. Similar to the way the members of ESA are ambassadors for spaceflight and science, artists and cultural professionals are ambassadors for human expression, experimentation, and exploration. In June 2011, the ESA Topical Team Arts and Sciences (ETTAS) held a three-day workshop at the European Astronaut Centre in Cologne, Germany. During this workshop, topics and ideas were discussed to develop initiatives between the arts, sciences and ESA. The aim was to foster and expand the human and cultural aspects of space exploration, and at the same time offer a means of communication that aims to reach audiences beyond the scope of traditional space-related channels. The consensus of the team was that establishing and sustaining a transdisciplinary professional community consisting of ESA representatives, scientists and artists would fuel knowledge transfer, and mutual inspiration. Potential ways to provide a sustainable cooperation within and between the various groups were discussed. We present the preliminary findings including a number of measures and mechanisms to initiate and conduct such an initiative. Plausible organisational measures, procedures and consequences, as well as a proposition on how to proceed are also discussed. Overall, the involvement and cooperation between the arts, space science research and ESA will enhance in the citizens of the ESA member states the sense of public ownership of ESA results, and participation in ESA's research.

  17. Application And Implication Of Nanomaterials In The Environment: An Overview Of Current Research At The Environmental Protection Agency (Romania)

    EPA Science Inventory

    The purpose of this presentation is to teach a course on analytical techniques, quality assurance, environmental research protocols, and basic soil environmental chemistry at the Environmental Health Center and Babes Bolyai University in Cluj, Romania. FOR FURTHER INFORMATI...

  18. Raising the Bar for Reproducible Science at the US Environmental Protection Agency Office of Research and Development

    EPA Science Inventory

    Considerable concern has been raised regarding research reproducibility both within and outside the scientific community. Several factors possibly contribute to a lack of reproducibility, including a failure to adequately employ statistical considerations during study design, bia...

  19. Defense Small Business Innovation Research Program (SBIR). Volume 4. Defense Agencies Abstracts of Phase 1 Awards 1992

    DTIC Science & Technology

    1992-01-01

    revolutionary approach will capture the algorithms and architecture of a system in composite high -level VHDL models . The system designer will get...processing plant. Control of pulse shape and high energy allows for better process control. The Phase I research work will generate models for high ...describes the research needed to design a unified access interface that facilitates access to meteor burst. high frequency , and lightsat channels. It also

  20. Sex Determination Using Inion-Opistocranium-Asterion (IOA) Triangle in Nigerians' Skulls

    PubMed Central

    Orish, C. N.; Didia, B. C.; Fawehinmi, H. B.

    2014-01-01

    Background. Determination of sex is an important concern to the forensic anthropologists as it is critical for individual identification. This study has investigated the existence of sexual dimorphism in the dimensions and the area of the IOA triangle. Methods. A total of 100 adult dry skulls, (78 males; 22 females) from departments of anatomy in Nigerian universities were used for this study. Automatic digital calliper was used for the measurement. Coefficient of variation, correlation, linear regression, percentiles, and sexual dimorphism ratio were computed from the IOA triangle measurements. The IOA triangle area was compared between sexes. Results. The male parameters were significantly (P < 0.05) higher than female parameters. The left opistocranium-asterion length was 71.09 ± 0.56 and 61.68 ± 3.35 mm and the right opistocranium-asterion length was 69.73 ± 0.49 and 60.92 ± 2.10 mm for male and female, respectively. A total area of IOA triangle of 1938.88 mm2 and 1305.68 mm2 for male and female, respectively, was calculated. The left IOA indices were 46.42% and 37.40% in males and females, respectively, while the right IOA indices for males and females were 47.19% and 38.87%, respectively. Conclusion. The anthropometry of inion-opistocranium-asterion IOA triangle can be a guide in gender determination of unknown individuals. PMID:24949204

  1. Holliday Triangle Hunter (HolT Hunter): Efficient Software for Identifying Low Strain DNA Triangular Configurations

    SciTech Connect

    Sherman, W.B.

    2012-04-16

    Synthetic DNA nanostructures are typically held together primarily by Holliday junctions. One of the most basic types of structures possible to assemble with only DNA and Holliday junctions is the triangle. To date, however, only equilateral triangles have been assembled in this manner - primarily because it is difficult to figure out what configurations of Holliday triangles have low strain. Early attempts at identifying such configurations relied upon calculations that followed the strained helical paths of DNA. Those methods, however, were computationally expensive, and failed to find many of the possible solutions. I have developed a new approach to identifying Holliday triangles that is computationally faster, and finds well over 95% of the possible solutions. The new approach is based on splitting the problem into two parts. The first part involves figuring out all the different ways that three featureless rods of the appropriate length and diameter can weave over and under one another to form a triangle. The second part of the computation entails seeing whether double helical DNA backbones can fit into the shape dictated by the rods in such a manner that the strands can cross over from one domain to the other at the appropriate spots. Structures with low strain (that is, good fit between the rods and the helices) on all three edges are recorded as promising for assembly.

  2. Motion capture for human motion measuring by using single camera with triangle markers

    NASA Astrophysics Data System (ADS)

    Takahashi, Hidenori; Tanaka, Takayuki; Kaneko, Shun'ichi

    2005-12-01

    This study aims to realize a motion capture for measuring 3D human motions by using single camera. Although motion capture by using multiple cameras is widely used in sports field, medical field, engineering field and so on, optical motion capture method with one camera is not established. In this paper, the authors achieved a 3D motion capture by using one camera, named as Mono-MoCap (MMC), on the basis of two calibration methods and triangle markers which each length of side is given. The camera calibration methods made 3D coordinates transformation parameter and a lens distortion parameter with Modified DLT method. The triangle markers enabled to calculate a coordinate value of a depth direction on a camera coordinate. Experiments of 3D position measurement by using the MMC on a measurement space of cubic 2 m on each side show an average error of measurement of a center of gravity of a triangle marker was less than 2 mm. As compared with conventional motion capture method by using multiple cameras, the MMC has enough accuracy for 3D measurement. Also, by putting a triangle marker on each human joint, the MMC was able to capture a walking motion, a standing-up motion and a bending and stretching motion. In addition, a method using a triangle marker together with conventional spherical markers was proposed. Finally, a method to estimate a position of a marker by measuring the velocity of the marker was proposed in order to improve the accuracy of MMC.

  3. Climate Change Research. Agencies Have Data-Sharing Policies but Could Do More to Enhance the Availability of Data from Federally Funded Research

    DTIC Science & Technology

    2007-09-01

    Data Management for Global Change Research Policy Statements 39 Background 39 Applicability 40 Guidelines and Their Application 40 Suggested Data...the Data Management for Global Change Research Policy Statements, an interagency policy under the Climate Change Science Program (CCSP), provides...Program Source: GAO analysis of survey responses. Note: The CCSP data-sharing policy, Data Management for Global Change Research Policy Statements

  4. International Atomic Energy Agency support of research reactor highly enriched uranium to low enriched uranium fuel conversion projects

    SciTech Connect

    Bradley, E.; Adelfang, P.; Goldman, I.N.

    2008-07-15

    The IAEA has been involved for more than twenty years in supporting international nuclear non- proliferation efforts associated with reducing the amount of highly enriched uranium (HEU) in international commerce. IAEA projects and activities have directly supported the Reduced Enrichment for Research and Test Reactors (RERTR) programme, as well as directly assisted efforts to convert research reactors from HEU to LEU fuel. HEU to LEU fuel conversion projects differ significantly depending on several factors including the design of the reactor and fuel, technical needs of the member state, local nuclear infrastructure, and available resources. To support such diverse endeavours, the IAEA tailors each project to address the relevant constraints. This paper presents the different approaches taken by the IAEA to address the diverse challenges involved in research reactor HEU to LEU fuel conversion projects. Examples of conversion related projects in different Member States are fully detailed. (author)

  5. 78 FR 22880 - Agency Information Collection Activities; Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-17

    ... employ the complementary quantitative and qualitative methods of previous research. The combination of... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities; Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS....

  6. 78 FR 49516 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-14

    ... quantitative research methods. The evaluation will include a survey of pediatricians and family physicians... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS....

  7. 78 FR 32652 - Agency Information Collections Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-31

    ... evaluation that will make the best use of qualitative and quantitative research methods. The evaluation will... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collections Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS....

  8. MEETING TODAY'S EMERGING CONTAMINANTS WITH TOMORROW'S RESEARCH TOOL

    EPA Science Inventory

    This presentation will explore the many facets of research and development for emerging contaminants within the USEPA's National Exposure Research Laboratories (Athens, Cincinnati, Las Vegas, and Research Triangle Park).

  9. A synopsis of the Defense Advanced Research Projects Agency (DARPA) investment in additive manufacture and what challenges remain

    NASA Astrophysics Data System (ADS)

    Maher, Michael; Smith, Adrien; Margiotta, Jesse

    2014-03-01

    DARPA's interest in additive manufacture dates back to the mid-80s with seedling programs that developed the foundational knowledge and equipment that led to the Solid Freeform Fabrication program in 1990. The drivers for this program included reducing development times by enabling "tool-less" manufacturing as well as integration of design and fabrication tools. DARPA consistently pushed the boundaries of additive manufacture with follow-on programs that expanded the material suite available for 3-D printing as well as new processes that expanded the technology's capability base. Programs such as the Mesoscopic Integrated Conformal Electronics (MICE) program incorporated functionality to the manufacturing processes through direct write of electronics. DARPA's investment in additive manufacture continues to this day but the focus has changed. DARPA's early investments were focused on developing and demonstrating the technology's capabilities. Now that the technology has been demonstrated, there is serious interest in taking advantage of the attributes unique to the processing methodology (such as customization and new design possibilities) for producing production parts. Accordingly, today's investment at DARPA addresses the systematic barriers to implementation rather than the technology itself. The Open Manufacturing program is enabling rapid qualification of new technologies for the manufacturing environment through the development of new modeling and informatics tools. While the technology is becoming more mainstream, there are plenty of challenges that need to be addressed. And as the technology continues to mature, the agency will continue to look for those "DARPA-hard" challenges that enable revolutionary changes in capability and performance for the Department of Defense.

  10. Agency, Isolation, and the Coming of New Technologies: Exploring "Dependency" in Coastal Communities of Newfoundland Through Participatory Research

    ERIC Educational Resources Information Center

    Clover, Darlene; Harris, Carol E.

    2005-01-01

    How does one effectively and ethically conduct research with community members who are steeped in histories of economic and social dependency, so that the people themselves take charge of their futures? This question is explored in a Canadian context as the authors study the potential of new technologies to bring hope to traditional coastal…

  11. 78 FR 39741 - Announcement of Agency Decision: Recommendations on the Use of Chimpanzees in NIH-Supported Research

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    ...This notice announces the responses to public comments and decisions of the National Institutes of Health (NIH) regarding the use of chimpanzees in research. In February 2012, the NIH charged a working group of the Council of Councils, a federal advisory committee, to provide advice on implementing recommendations made by the Institute of Medicine (IOM) Committee on the Use of Chimpanzees in......

  12. Wedge sampling for computing clustering coefficients and triangle counts on large graphs

    SciTech Connect

    Seshadhri, C.; Pinar, Ali; Kolda, Tamara G.

    2014-05-08

    Graphs are used to model interactions in a variety of contexts, and there is a growing need to quickly assess the structure of such graphs. Some of the most useful graph metrics are based on triangles, such as those measuring social cohesion. Despite the importance of these triadic measures, algorithms to compute them can be extremely expensive. We discuss the method of wedge sampling. This versatile technique allows for the fast and accurate approximation of various types of clustering coefficients and triangle counts. Furthermore, these techniques are extensible to counting directed triangles in digraphs. Our methods come with provable and practical time-approximation tradeoffs for all computations. We provide extensive results that show our methods are orders of magnitude faster than the state of the art, while providing nearly the accuracy of full enumeration.

  13. Difference in the odor concentrations measured by the triangle odor bag method and dynamic olfactometry.

    PubMed

    Ueno, H; Amano, S; Merecka, B; Kośmider, J

    2009-01-01

    'The triangle odor bag method', which has been adopted for the offensive odor control law in Japan, and the dynamic olfactometry defined by EN 13725 have been compared. The odor concentration measured by the triangle odor bag method tends to be higher than that of the dynamic olfactometry in the forced choice mode, while well agreed in the Yes/No mode olfactometry when the panel is the same. The difference can be minimized by applying the panel selection criterion of EN13725 to the triangle odor bag method. The European panel selection test is useful to negate the difference in the measurement equipments although the criteria seem to be strict considering the individual threshold data of n-butanol.

  14. The Pascal Triangle of a Discrete Image: Definition, Properties and Application to Shape Analysis

    NASA Astrophysics Data System (ADS)

    Boutin, Mireille; Huang, Shanshan

    2013-04-01

    We define the Pascal triangle of a discrete (gray scale) image as a pyramidal arrangement of complex-valued moments and we explore its geometric significance. In particular, we show that the entries of row k of this triangle correspond to the Fourier series coefficients of the moment of order k of the Radon transform of the image. Group actions on the plane can be naturally prolonged onto the entries of the Pascal triangle. We study the prolongation of some common group actions, such as rotations and reflections, and we propose simple tests for detecting equivalences and self-equivalences under these group actions. The motivating application of this work is the problem of characterizing the geometry of objects on images, for example by detecting approximate symmetries.

  15. Wedge sampling for computing clustering coefficients and triangle counts on large graphs

    DOE PAGES

    Seshadhri, C.; Pinar, Ali; Kolda, Tamara G.

    2014-05-08

    Graphs are used to model interactions in a variety of contexts, and there is a growing need to quickly assess the structure of such graphs. Some of the most useful graph metrics are based on triangles, such as those measuring social cohesion. Despite the importance of these triadic measures, algorithms to compute them can be extremely expensive. We discuss the method of wedge sampling. This versatile technique allows for the fast and accurate approximation of various types of clustering coefficients and triangle counts. Furthermore, these techniques are extensible to counting directed triangles in digraphs. Our methods come with provable andmore » practical time-approximation tradeoffs for all computations. We provide extensive results that show our methods are orders of magnitude faster than the state of the art, while providing nearly the accuracy of full enumeration.« less

  16. A Dissimilarity Measure for Clustering High- and Infinite Dimensional Data that Satisfies the Triangle Inequality

    NASA Technical Reports Server (NTRS)

    Socolovsky, Eduardo A.; Bushnell, Dennis M. (Technical Monitor)

    2002-01-01

    The cosine or correlation measures of similarity used to cluster high dimensional data are interpreted as projections, and the orthogonal components are used to define a complementary dissimilarity measure to form a similarity-dissimilarity measure pair. Using a geometrical approach, a number of properties of this pair is established. This approach is also extended to general inner-product spaces of any dimension. These properties include the triangle inequality for the defined dissimilarity measure, error estimates for the triangle inequality and bounds on both measures that can be obtained with a few floating-point operations from previously computed values of the measures. The bounds and error estimates for the similarity and dissimilarity measures can be used to reduce the computational complexity of clustering algorithms and enhance their scalability, and the triangle inequality allows the design of clustering algorithms for high dimensional distributed data.

  17. Digit recognition for Arabic/Jawi and Roman using features from triangle geometry

    NASA Astrophysics Data System (ADS)

    Azmi, Mohd Sanusi; Omar, Khairuddin; Nasrudin, Mohamad Faidzul; Idrus, Bahari; Wan Mohd Ghazali, Khadijah

    2013-04-01

    A novel method is proposed to recognize the Arab/Jawi and Roman digits. This new method is based on features from the triangle geometry, normalized into nine features. The features are used for zoning which results in five and 25 zones. The algorithm is validated by using three standard datasets which are publicly available and used by researchers in this field. The first dataset is HODA that contains 60,000 images for training and 20,000 images for testing. The second dataset is IFHCDB. This dataset has 52,380 isolated characters and 17,740 digits. Only the 17,740 images of digits are used for this research. For the roman digit, MNIST are chosen. MNIST dataset has 60,000 images for training and 10,000 images for testing. Supervised (SML) and Unsupervised Machine Learning (UML) are used to test the nine features. The SML used are Neural Network (NN) and Support Vector Machine (SVM). Whereas the UML uses Euclidean Distance Method with data mining algorithms; namely Mean Average Precision (eMAP) and Frequency Based (eFB). Results for SML testing for HODA dataset are 98.07% accuracy for SVM, and 96.73% for NN. For IFHCDB and MNIST the accuracy are 91.75% and 93.095% respectively. For the UML tests, HODA dataset is 93.91%, IFHCDB 85.94% and MNIST 86.61%. The train and test images are selected using both random and the original dataset's distribution. The results show that the accuracy of proposed algorithm is over 90% for each SML trained datasets where the highest result is the one that uses 25 zones features.

  18. A nodal triangle-based spectral element method for the shallow water equations on the sphere

    NASA Astrophysics Data System (ADS)

    Giraldo, F. X.; Warburton, T.

    2005-07-01

    A nodal triangle-based spectral element (SE) method for the shallow water equations on the sphere is presented. The original SE method uses quadrilateral elements and high-order nodal Lagrange polynomials, constructed from a tensor-product of the Legendre-Gauss-Lobatto points. In this work, we construct the high-order Lagrange polynomials directly on the triangle using nodal sets obtained from the electrostatics principle [J.S. Hesthaven, From electrostatics to almost optimal nodal sets for polynomial interpolation in a simplex, SIAM Journal on Numerical Analysis 35 (1998) 655-676] and Fekete points [M.A. Taylor, B.A. Wingate, R.E. Vincent, An algorithm for computing Fekete points in the triangle, SIAM Journal on Numerical Analysis 38 (2000) 1707-1720]. These points have good approximation properties and far better Lebesgue constants than any other nodal set derived for the triangle. By employing triangular elements as the basic building-blocks of the SE method and the Cartesian coordinate form of the equations, we can use any grid imaginable including adaptive unstructured grids. Results for six test cases are presented to confirm the accuracy and stability of the method. The results show that the triangle-based SE method yields the expected exponential convergence and that it can be more accurate than the quadrilateral-based SE method even while using 30-60% fewer grid points especially when adaptive grids are used to align the grid with the flow direction. However, at the moment, the quadrilateral-based SE method is twice as fast as the triangle-based SE method because the latter does not yield a diagonal mass matrix.

  19. Report on Survey Implementation. Research Triangle Institute, Caliber Associates and Human Resources Research Organization

    DTIC Science & Technology

    1994-03-01

    questionnaire was administered in a 28-page booklet that could be optically scanned via trans-optic technology ...didn’t warnt to live here (’ 1-2 months a (9_"• ’le arc, having marital prohlims . 3-4 monil •s - (’) Other reason (bC-6 imonths a IN 7-12 nronoths a

  20. The influence of Hausdorff dimension on plasmonic antennas with Pascal's triangle geometry

    NASA Astrophysics Data System (ADS)

    Sederberg, S.; Elezzabi, A. Y.

    2011-06-01

    We introduce fractal geometry to the common bowtie antenna and investigate the influence of a key fractal parameter, Hausdorff dimension, on the broadband spectral response of the antenna. Length scaling trends are presented for antennas having various Hausdorff dimensions. We show that antennas with Pascal's triangle geometry accommodate resonances that are red-shifted when compared to a standard bowtie antenna having the same size. Furthermore, increasing the Hausdorff dimension of the antenna blue shifts its resonance. By designing nanoplasmonic antennas with Pascal's triangle geometry, the resonance conditions may be varied while the antenna dimensions are kept constant.

  1. The Coral Triangle Atlas: An Integrated Online Spatial Database System for Improving Coral Reef Management

    PubMed Central

    Cros, Annick; Ahamad Fatan, Nurulhuda; White, Alan; Teoh, Shwu Jiau; Tan, Stanley; Handayani, Christian; Huang, Charles; Peterson, Nate; Venegas Li, Ruben; Siry, Hendra Yusran; Fitriana, Ria; Gove, Jamison; Acoba, Tomoko; Knight, Maurice; Acosta, Renerio; Andrew, Neil; Beare, Doug

    2014-01-01

    In this paper we describe the construction of an online GIS database system, hosted by WorldFish, which stores bio-physical, ecological and socio-economic data for the ‘Coral Triangle Area’ in South-east Asia and the Pacific. The database has been built in partnership with all six (Timor-Leste, Malaysia, Indonesia, The Philippines, Solomon Islands and Papua New Guinea) of the Coral Triangle countries, and represents a valuable source of information for natural resource managers at the regional scale. Its utility is demonstrated using biophysical data, data summarising marine habitats, and data describing the extent of marine protected areas in the region. PMID:24941442

  2. Suppression of Secondary Emission in a Magnetic Field Using a Sawtooth and Isosceles Triangle Surface

    SciTech Connect

    Wang, L.; Raubenheimer, T.O.; Stupakov, G.; /SLAC

    2006-09-26

    The effect of surface roughness on the secondary electron emission from a sawtooth and isosceles triangle surface in a magnetic field under electron bombardment is investigated using a Monte-Carlo method. Some of the secondary electrons emitted from the surface return to the surface within their first few gyrations, resulting in a low effective secondary electron yield. Both sawtooth and isosceles triangle surface in magnetic field can significantly reduce the secondary emission yield below the multipacting threshold with weak dependence on the size of surface and magnetic field.

  3. Triangle based adaptive stencils for the solution of hyperbolic conservation laws

    NASA Technical Reports Server (NTRS)

    Durlofsky, Louis J.; Engquist, Bjorn; Osher, Stanley

    1992-01-01

    A triangle based total variation diminishing (TVD) scheme for the numerical approximation of hyperbolic conservation laws in two space dimensions is constructed. The novelty of the scheme lies in the nature of the preprocessing of the cell averaged data, which is accomplished via a nearest neighbor linear interpolation followed by a slope limiting procedures. Two such limiting procedures are suggested. The resulting method is considerably more simple than other triangle based non-oscillatory approximations which, like this scheme, approximate the flux up to second order accuracy. Numerical results for linear advection and Burgers' equation are presented.

  4. The Coral Triangle Atlas: an integrated online spatial database system for improving coral reef management.

    PubMed

    Cros, Annick; Ahamad Fatan, Nurulhuda; White, Alan; Teoh, Shwu Jiau; Tan, Stanley; Handayani, Christian; Huang, Charles; Peterson, Nate; Venegas Li, Ruben; Siry, Hendra Yusran; Fitriana, Ria; Gove, Jamison; Acoba, Tomoko; Knight, Maurice; Acosta, Renerio; Andrew, Neil; Beare, Doug

    2014-01-01

    In this paper we describe the construction of an online GIS database system, hosted by WorldFish, which stores bio-physical, ecological and socio-economic data for the 'Coral Triangle Area' in South-east Asia and the Pacific. The database has been built in partnership with all six (Timor-Leste, Malaysia, Indonesia, The Philippines, Solomon Islands and Papua New Guinea) of the Coral Triangle countries, and represents a valuable source of information for natural resource managers at the regional scale. Its utility is demonstrated using biophysical data, data summarising marine habitats, and data describing the extent of marine protected areas in the region.

  5. Unconventional quantum ordered and disordered states in the highly frustrated spin-(1)/(2) Ising-Heisenberg model on triangles-in-triangles lattices

    NASA Astrophysics Data System (ADS)

    Čisárová, Jana; Strečka, Jozef

    2013-01-01

    The spin-(1)/(2) Ising-Heisenberg model on two geometrically related triangles-in-triangles lattices is exactly solved through the generalized star-triangle transformation, which establishes a rigorous mapping correspondence with the effective spin-(1)/(2) Ising model on a triangular lattice. Basic thermodynamic quantities were exactly calculated within this rigorous mapping method along with the ground-state and finite-temperature phase diagrams. Apart from the classical ferromagnetic phase, both investigated models exhibit several unconventional quantum ordered and disordered ground states. A mutual competition between two ferromagnetic interactions of basically different character generically leads to the emergence of a quantum ferromagnetic phase, in which a symmetric quantum superposition of three up-up-down states of the Heisenberg trimers accompanies a perfect alignment of all Ising spins. In the highly frustrated regime, we have either found the disordered quantum paramagnetic phase with a substantial residual entropy or a similar but spontaneously ordered phase with a nontrivial criticality at finite temperatures. The latter quantum ground state exhibits a striking coexistence of imperfect spontaneous order with partial disorder, which is evidenced by a quantum reduction of the spontaneous magnetization of Heisenberg spins that indirectly causes a small reduction of the spontaneous magnetization of otherwise classical Ising spins.

  6. Summary of the 19th International Atomic Energy Agency Technical Meeting on 'Research Using Small Fusion Devices'

    NASA Astrophysics Data System (ADS)

    Van Oost, G.; Mank, G.

    2011-08-01

    This paper presents a summary of recent results reported on several topics on magnetic confinement, dense magnetized plasmas, innovative fusion technology and applications, diagnostic systems and control and data acquisition systems. The main topics covered on the magnetic confinement devices, diagnostics and data acquisition concern the tokamak KTM (Kazakhstan Tokamak for Material testing) for materials research and testing, and IAEA Joint Experiments on small tokamaks. For the dense magnetized plasmas results on development and commissioning of plasma focus devices were reported. The plasmatron VISION I for innovative plasma-wall interaction studies, a lithium divertor for KTM and compact fusion reactors as neutron sources were presented.

  7. Evaluating healthcare information technology outside of academia: observations from the national resource center for healthcare information technology at the Agency for Healthcare Research and Quality.

    PubMed

    Poon, Eric G; Cusack, Caitlin M; McGowan, Julie J

    2009-01-01

    The National Resource Center for Health Information Technology (NRC) was formed in the fall of 2004 as part of the Agency for Healthcare Research and Quality (AHRQ) health IT portfolio to support its grantees. One of the core functions of the NRC was to assist grantees in their evaluation efforts of Health IT. This manuscript highlights some common challenges experienced by health IT project teams at nonacademic institutions, including inappropriately scoped and resourced evaluation efforts, inappropriate choice of metrics, inadequate planning for data collection and analysis, and lack of consideration of qualitative methodologies. Many of these challenges can be avoided or overcome. The strategies adopted by various AHRQ grantees and the lessons learned from their projects should become part of the toolset for current and future implementers of health IT as the nation moves rapidly towards its widespread adoption.

  8. Evaluating Healthcare Information Technology Outside of Academia: Observations from the National Resource Center for Healthcare Information Technology at the Agency for Healthcare Research and Quality

    PubMed Central

    Poon, Eric G.; Cusack, Caitlin M.; McGowan, Julie J.

    2009-01-01

    The National Resource Center for Health Information Technology (NRC) was formed in the fall of 2004 as part of the Agency for Healthcare Research and Quality (AHRQ) health IT portfolio to support its grantees. One of the core functions of the NRC was to assist grantees in their evaluation efforts of Health IT. This manuscript highlights some common challenges experienced by health IT project teams at nonacademic institutions, including inappropriately scoped and resourced evaluation efforts, inappropriate choice of metrics, inadequate planning for data collection and analysis, and lack of consideration of qualitative methodologies. Many of these challenges can be avoided or overcome. The strategies adopted by various AHRQ grantees and the lessons learned from their projects should become part of the toolset for current and future implementers of health IT as the nation moves rapidly towards its widespread adoption. PMID:19567800

  9. A minority research and education information service: Design, develop, pilot test, and implement on-line access for historically black colleges and universities and government agencies

    SciTech Connect

    Rodman, J.A.

    1992-01-01

    This Annual Status Report describes the design, development and implementation of the Minority On-Line Information Service (MOLIS) project by Federal Information Exchange, Inc. for the period of April 1, 1991 to March 31, 1992. Summary information detailing developments prior to this reporting period will also be included to establish a comprehensive perspective of the project. The goal of the MOLIS project, was to develop, design, pilot test on-line access to current information on minority colleges and universities and federal minority opportunities. Federal Information Exchange, Inc. (FIE), a diversified information services company recognized by researchers and educators as a leader in the field of information delivery services, was awarded a 5 year small business research grant to develop and implement MOLIS. Since April 29, 1991, the inauguration of its on-line service, MOLIS has provided current information on 138 Black and Hispanic colleges and universities -- including faculty and student profiles, financial data, research centers and equipment information, pre-college and education programs, emerging capabilities, enrollment data, administrative personnel data, and current events -- as well as minority opportunities from 8 participating federal agencies.

  10. Structure, function and toxicity of alpha-synuclein: the Bermuda triangle in synucleinopathies.

    PubMed

    Villar-Piqué, Anna; Lopes da Fonseca, Tomás; Outeiro, Tiago Fleming

    2016-10-01

    Parkinson's disease belongs to a group of currently incurable neurodegenerative disorders characterized by the misfolding and accumulation of alpha-synuclein aggregates that are commonly known as synucleinopathies. Clinically, synucleinopathies are heterogeneous, reflecting the somewhat selective neuronal vulnerability characteristic of each disease. The precise molecular underpinnings of synucleinopathies remain unclear, but the process of aggregation of alpha-synuclein appears as a central event. However, there is still no consensus with respect to the toxic forms of alpha-synuclein, hampering our ability to use the protein as a target for therapeutic intervention. To decipher the molecular bases of synucleinopathies, it is essential to understand the complex triangle formed between the structure, function and toxicity of alpha-synuclein. Recently, important steps have been undertaken to elucidate the role of the protein in both physiological and pathological conditions. Here, we provide an overview of recent findings in the field of alpha-synuclein research, and put forward a new perspective over paradigms that persist in the field. Establishing whether alpha-synuclein has a causative role in all synucleinopathies will enable the identification of targets for the development of novel therapeutic strategies for this devastating group of disorders. Alpha-synuclein is the speculated cornerstone of several neurodegenerative disorders known as Synucleinopathies. Nevertheless, the mechanisms underlying the pathogenic effects of this protein remain unknown. Here, we review the recent findings in the three corners of alpha-synuclein biology - structure, function and toxicity - and discuss the enigmatic roads that have accompanied alpha-synuclein from the beginning. This article is part of a special issue on Parkinson disease.

  11. A BPTTF-based self-assembled electron-donating triangle capable of C60 binding.

    PubMed

    Goeb, Sébastien; Bivaud, Sébastien; Dron, Paul Ionut; Balandier, Jean-Yves; Chas, Marcos; Sallé, Marc

    2012-03-25

    A kinetically stable self-assembled redox-active triangle is isolated. The resulting electron-donating cavity, which incorporates three BPTTF units, exhibits a remarkable binding ability for electron-deficient C(60), supported by a favorable combination of structural and electronic features.

  12. From Commodity Production to Sign Production: A Triple Triangle Model for Marx's Semiotics and Peirce's Economics.

    ERIC Educational Resources Information Center

    Kim, Joohoan

    Using the viewpoint of semiotics, this paper "re-reads" Karl Marx's labor theory of value and suggests a "triple triangle" model for commodity production and shows how this model could be a model for semiosis in general. The paper argues that there are three advantages to considering homogeneity of the sign production and the…

  13. Membrane triangles with corner drilling freedoms. III - Implementation and performance evaluation

    NASA Technical Reports Server (NTRS)

    Felippa, Carlos A.; Alexander, Scott

    1992-01-01

    This paper completes a three-part series on the formulation of 3-node, 9-dof membrane triangles with corner drilling freedoms based on parametrized variational principles. The first four sections cover element implementation details including determination of optimal parameters and treatment of distributed loads. Then three elements of this type, labeled ALL, FF and EFF-ANDES, are tested on standard plane stress problems. ALL represents numerically integrated versions of Allman's 1988 triangle; FF is based on the free formulation triangle presented by Bergan and Felippa in 1985; and EFF-ANDES represent two different formulations of the optimal triangle derived in Parts I and II. The numerical studies indicate that the ALL, FF and EFF-ANDES elements are comparable in accuracy for elements of unitary aspect ratios. The ALL elements are found to stiffen rapidly in inplane bending for high aspect ratios, whereas the FF and EFF elements maintain accuracy. The EFF and ANDES implementations have a moderate edge in formation speed over the FF.

  14. Managing Online Discussion Forums: Building Community by Avoiding the Drama Triangle

    ERIC Educational Resources Information Center

    Gerlock, Jennifer Ann; McBride, Dawn Lorraine

    2013-01-01

    The authors critically analyze how the concept of the drama triangle--part of the game theory associated with transactional analysis--can be used by post secondary instructors teaching online to build a sense of community and decrease students' dependence on instructors in discussion forums. The article begins with an overview of sense of…

  15. Visual acuity performance of several observers using the triangle orientation discrimination methodology

    NASA Astrophysics Data System (ADS)

    Mündel, Julia; Geisel, Bärbel; Braesicke, Katrin; Bürsing, Helge

    2016-10-01

    The Triangle Orientation Discrimination (TOD) is one of several methods to characterize electro-optical system performance. It is conducted by presenting an equilateral triangle pointing either up, down, right or left, to an observer who is forced to judge the direction. Based from the probability on the correctness of the answers in dependence of the size of the triangle, the quality of the system can be assessed. In order to gain experience with this method it was applied here to test Fraunhofer IOSBs new equipment for perception experiments. An experiment with four observers, ten contrast levels and six triangle sizes was conducted. Its results were analysed for observer performance versus time, illumination conditions and variations in the TOD-curve. Furthermore, different approaches on analysing the data were compared. The outcome showed the observers performance variation on different days to be statistically insignificant. In addition, the illumination conditions had no statistically significant influence on the result. Interestingly a larger difference was found between the observers. Although they had normal or corrected to normal eyesight, different visual acuity is the only explanation for the differences. This leads to the necessity to check observers of perception experiments more closely. The different approaches to curve fitting also gave variations, which would result in different ranges when applied in camera assessment. Here a standardization seems necessary when the method is applied in analytical models for imaging systems.

  16. Early-Years Teachers' Concept Images and Concept Definitions: Triangles, Circles, and Cylinders

    ERIC Educational Resources Information Center

    Tsamir, Pessia; Tirosh, Dina; Levenson, Esther; Barkai, Ruthi; Tabach, Michal

    2015-01-01

    This study investigates practicing early-years teachers' concept images and concept definitions for triangles, circles, and cylinders. Teachers were requested to define each figure and then to identify various examples and non-examples of the figure. Teachers' use of correct and precise mathematical language and reference to critical and…

  17. Understanding Responsibility: A Self-Directed Learning Application of the Triangle Model of Responsibility

    ERIC Educational Resources Information Center

    Kohns, Jonathan W.; Ponton, Michael K.

    2006-01-01

    Personal responsibility has long been considered an important component in self-directed learning. And yet, a theoretical understanding of personal responsibility that could lead to meaningful instrumentation has eluded the field. The present study considers the merits of the Triangle Model of Responsibility (TMR) (Schlenker, Britt, Pennington,…

  18. On the chromatic number of a space with forbidden equilateral triangle

    SciTech Connect

    Zvonarev, A E; Raigorodskii, A M; Kharlamova, A A; Samirov, D V

    2014-09-30

    We improve the Frankl-Rödl estimate for the product of the numbers of edges in uniform hypergraphs with forbidden cardinalities of the intersection of edges. By using this estimate, we obtain explicit bounds for the chromatic number of a space with forbidden monochromatic equilateral triangles. Bibliography: 31 titles.

  19. Some Half-Row Sums from Pascal's Triangle via Laplace Transforms

    ERIC Educational Resources Information Center

    Dence, Thomas P.

    2007-01-01

    This article presents some identities on the sum of the entries in the first half of a row in Pascal's triangle. The results were discovered while the author was working on a problem involving Laplace transforms, which are used in proving of the identities.

  20. Update on Angles and Sides of the CKM Unitarity Triangle from BaBar

    SciTech Connect

    Cheng, Chih-hsiang; /Caltech

    2011-11-14

    We report several recent updates from the BABAR Collaboration on the matrix elements |V{sub cb}|, |V{sub ub}|, and |V{sub td}| of the Cabibbo-Kobayashi-Maskawa (CKM) quark-mixing matrix, and the angles {beta} and {alpha} of the unitarity triangle. Most results presented here are using the full BABAR {Upsilon}(4S) data set.

  1. A new approach of QRS complex detection based on matched filtering and triangle character analysis.

    PubMed

    Li, Yanjun; Yan, Hong; Hong, Feng; Song, Jinzhong

    2012-09-01

    QRS complex detection usually provides the fundamentals to automated electrocardiogram (ECG) analysis. In this paper, a new approach of QRS complex detection without the stage of noise suppression was developed and evaluated, which was based on the combination of two techniques: matched filtering and triangle character analysis. Firstly, a template of QRS complex was selected automatically by the triangle character in ECG, and then it was time-reversed after removing its direct current component. Secondly, matched filtering was implemented at low computational cost by finite impulse response, which further enhanced QRS complex and attenuated non-QRS regions containing P-wave, T-wave and various noise components. Subsequently, triangle structure-based threshold decision was processed to detect QRS complexes. And RR intervals and triangle structures were further analyzed for the reduction of false-positive and false-negative detections. Finally, the performance of the proposed algorithm was tested on all 48 records of the MIT-BIH Arrhythmia Database. The results demonstrated that the detection rate reached 99.62 %, the sensitivity got 99.78 %, and the positive prediction was 99.85 %. In addition, the proposed method was able to identify QRS complexes reliably even under the condition of poor signal quality.

  2. The V-Flex, Triangle Orientation, and Catalan Numbers in Hexaflexagons

    ERIC Educational Resources Information Center

    Iacob, Ionut E.; McLean, T. Bruce; Wang, Hua

    2012-01-01

    Regular hexaflexagons mysteriously change faces as you pinch flex them. This paper describes a different flex, the V-flex, which allows the hexahexaflexagon (with only 9 faces under the pinch flex) to have 3420 faces. The article goes on to explain the classification of triangle orientations in a hexaflexagon and gives an example of the…

  3. Tributes beyond Words: Art Educators' Use of Textiles to Memorialize the Triangle Shirtwaist Factory Fire

    ERIC Educational Resources Information Center

    Mercurio, Mia Lynn; Randall, Régine

    2016-01-01

    Through the study of The Triangle Shirtwaist Factory fire, pre-service art teachers learn the about interdisciplinary design and the importance of using discipline-specific literacy strategies alongside the materials and methods of their craft. The creativity and enthusiasm with which these preservice teachers approached the work convinced us that…

  4. Local-field enhancement of optical nonlinearities in the AGZO nano-triangle array

    NASA Astrophysics Data System (ADS)

    Long, Hua; Bao, Lijiao; Wang, Kai; Liu, Shuhui; Wang, Bing

    2016-10-01

    Enhancement of the third order optical nonlinearities in Ga and Al co-doped ZnO (AGZO) nano-triangle array was investigated by performing a Z-scan method with a femtosecond laser (800 nm, 40 fs). The AGZO nano-triangle array was fabricated on silica substrates by nanosphere lithography (NSL) method, showing a surface plasmon resonance (SPR) peak around 3 μm. The two photon absorption (TPA) coefficient and nonlinear refractive index of the AGZO nano-triangle array were determined to be 340 cm/GW and 3.22 × 10-2 cm2/GW under an excitation intensity of 26 GW/cm2. It shows a 3.4-fold enhancement of the nonlinear refraction in the AGZO array with respect to that in the AGZO film, which attributes to the local field enhancement effect. The finite-difference time-domain (FDTD) simulation was in agreement with the experimental results. It indicates that the AGZO nano-triangle arrays have potential applications for nonlinear optical devices like all-optical switching, optical limiting and other types of signal processing.

  5. Triangles, tricks and tics: Hyper-mentalizing in response to animated shapes in Tourette syndrome.

    PubMed

    Eddy, Clare M; Cavanna, Andrea E

    2015-10-01

    Tourette syndrome (TS) can feature complex tics involving socially inappropriate behaviours. Adults with TS can also demonstrate differences to healthy controls when reasoning about mental states. This study investigated spontaneous mentalizing in TS. Twenty adults with TS and twenty healthy controls completed the animations task. Participants were asked to watch short ambiguous animations involving two triangles and describe what was happening. Some animations featured random movement of the triangles, while others depicted social interactions that were simple (e.g., dancing) or more complex (e.g., one triangle tricking the other). Measures were taken of executive functions, alexithymia and clinical symptoms. Individuals with TS responded similarly to controls when viewing animations featuring simple and complex interactions, demonstrating intact mentalizing ability. However, significant group differences were apparent for the random movement animations. TS was associated with a greater tendency to attribute mental states during this condition, and to describe random movements as motivated actions guided by the intentions of the triangles. There were no group differences for the alexithymia scale, but TS was associated with mild executive deficits. No relationships were apparent between animation responses and other measures. Our findings suggest that TS is associated with a propensity to adopt the intentional stance. Hyper-mentalizing in TS could be linked to both dopamine dysfunction and altered social behaviour, whereby amplified salience of social cues could contribute to the complex interplay between environmental context and tic expression. These observations may offer further insight into the potential effects of dopamine dysfunction on social cognition.

  6. Fermat Point for a Triangle in Three Dimensions Using the Taxicab Metric

    ERIC Educational Resources Information Center

    Hanson, J. R.

    2017-01-01

    This article explores the process of finding the Fermat point for a triangle ABC in three dimensions. Three examples are presented in detail using geometrical methods. A delightfully simple general method is then presented that requires only the comparison of coordinates of the vertices A, B and C.

  7. Placing Students at the Heart of the Iron Triangle and the Interaction Equivalence Theorem Models

    ERIC Educational Resources Information Center

    Lane, Andy

    2014-01-01

    A number of visual models have been proposed to help explain the interplay and interactions between specified components of higher education systems at different levels and to take account of emerging trends towards open education systems. At sector and institutional levels the notion of an iron triangle has been posited, linking firstly access,…

  8. Certain topological properties and duals of the domain of a triangle matrix in a sequence space

    NASA Astrophysics Data System (ADS)

    Altay, Bilâl; Basar, Feyzi

    2007-12-01

    The matrix domain of the particular limitation methods Cesàro, Riesz, difference, summation and Euler were studied by several authors. In the present paper, certain topological properties and [beta]- and [gamma]-duals of the domain of a triangle matrix in a sequence space have been examined as an application of the characterization of the related matrix classes.

  9. Preservice Primary Teachers' Understanding of the Concept of Altitude of a Triangle.

    ERIC Educational Resources Information Center

    Gutierrez, Angel; Jaime, Adela

    1999-01-01

    The way teachers understand mathematics strongly influences their teaching and what pupils learn. Describes the influence of two variables on preservice teachers' performance: (1) the presence of a formal definition; and (2) previous classroom activities that addressed the concept of the altitude of a triangle. (Contains 30 references.)…

  10. Some Nice Relations between Right-Angled Triangles and the Golden Section

    ERIC Educational Resources Information Center

    Scimone, Aldo

    2011-01-01

    The international debate about experimental approaches to the teaching and learning mathematics is very current. While number theory lends itself naturally to such approaches, elementary geometry can also provide interesting starting points for creative work in class. This article shows how simple considerations about right triangles and the…

  11. Emerging research on real-time air pollution sensing with the United States Environmental Protection Agency, Office of Research and Development

    EPA Science Inventory

    Abstract: Air pollution research ranges broadly at the US EPA and includes the characterization of pollutant emissions from a wide array of sources, studying post-emission transport and transformation in the atmosphere, and evaluating the linkages between air pollution and advers...

  12. Women in STEM Research: Federal Agencies Differ in the Data They Collect on Grant Applicants. GAO-15-291R STEM Research

    ERIC Educational Resources Information Center

    US Government Accountability Office, 2015

    2015-01-01

    Since the enactment of Title IX in 1972--which prohibits discrimination on the basis of sex in education programs and activities receiving any federal financial assistance--women have made significant gains in many academic fields. However, recent research shows that women continue to lag behind men in academic and professional advancement in…

  13. Promoting Learning by Inquiry Among Undergraduates in Soil Sciences: Scaffolding From Project-based Courses to Student-Staff Research Grants by the National Research Agency in Oman

    NASA Astrophysics Data System (ADS)

    Al-Ismaily, Said; Kacimov, Anvar; Al-Maktoumi, Ali

    2016-04-01

    Three strategies in a soil science undergraduate programme with inquiry-based learning (IBL) principles at Sultan Qaboos University, Oman, are presented. The first strategy scaffolds courses into three phases: with direct instructional guidance, structured IBL, and finally, guided to open IBL. The second strategy involves extra-curricular activities of undergraduates, viz. conducting workshops on soils for pupils in grades 7-9 with their teachers. The third strategy promotes the teaching-research nexus through collaboration between the undergraduates and faculty within a student-supporting, government-funded programme through 1-year long research grants of up to 5,500 US/project. The efficiency of the strategies was evaluated by students' evaluations of courses and instructors and questionnaire-based surveys. Statistics of students' responses in teaching evaluations of IBL courses showed a significantly higher level of satisfaction compared with regular courses taught in the department and college. In surveys of other constituencies of the program, viz. the secondary schools, more than 90% of respondents "agreed" or "strongly agreed" that they had learned new information/secrets about soils. The indicators of success in the third strategy are: winning a highly competitive grant and, moreover, earning an even more competitive annual national award for the best executed research project. The two top graduates of the IBL soil programme progressed into the MSc programme with the university and national scholarships. Key words: inquiry based learning, soil science undergraduate program, scaffold of courses, outreach activities, teaching-research nexus, evaluation of program's efficiency

  14. NASA's Upper Atmosphere Research Program UARP and Atmospheric Chemistry Modeling and Analysis Program (ACMAP): Research Summaries 1994 - 1996. Report to Congress and the Environmental Protection Agency

    NASA Technical Reports Server (NTRS)

    Kendall, Rose (Compiler); Wolfe, Kathy (Compiler)

    1997-01-01

    Under the mandate contained in the FY 1976 NASA Authorization Act, the National Aeronautics and Space Administration (NASA) has developed and is implementing a comprehensive program of research, technology, and monitoring of the Earth's upper atmosphere, with emphasis on the stratosphere. This program aims at expanding our understanding to permit both the quantitative analysis of current perturbations as well as the assessment of possible future changes in this important region of our environment. It is carried out jointly by the Upper Atmosphere Research Program (UARP) and the Atmospheric Chemistry Modeling and Analysis Program (ACMAP), both managed within the Science Division in the Office of Mission to Planet Earth at NASA. Significant contributions to this effort are also provided by the Atmospheric Effects of Aviation Project (AEAP) of NASA's Office of Aeronautics. The long-term objectives of the present program are to perform research to: understand the physics, chemistry, and transport processes of the upper atmosphere and their effect on the distribution of chemical species in the stratosphere, such as ozone; understand the relationship of the trace constituent composition of the lower stratosphere and the lower troposphere to the radiative balance and temperature distribution of the Earth's atmosphere; and accurately assess possible perturbations of the upper atmosphere caused by human activities as well as by natural phenomena. In compliance with the Clean Air Act Amendments of 1990, Public Law 101-549, NASA has prepared a report on the state of our knowledge of the Earth's upper atmosphere, particularly the stratosphere, and on the progress of UARP and ACMAP. The report for the year 1996 is composed of two parts. Part 1 summarizes the objectives, status, and accomplishments of the research tasks supported under NASA UARP and ACMAP in a document entitled, Research Summary 1994-1996. Part 2 is entitled Present State of Knowledge of the Upper Atmosphere

  15. The Army Family Research Program: Sampling Plan for the CORE Research Program

    DTIC Science & Technology

    1990-07-01

    Because FSUs and SSUs will vary considerably with respect to numbers of personnel, the sample will be chosen with minimum replacement ( Chromy 1979...comunity: The plan for research. Research Triangle Park, NC: Research Triangle Institute. Chromy , J. (1979). Sequential sampling selection methods. In...Effects (1.25) Power Sample Size and Participation Failure Rate (.05) .10 48 62 .30 129 170 .50 218 287 .60 271 357 .70 324 440 .80 418 551 .90 552 726

  16. The Mass-Longevity Triangle: Pareto Optimality and the Geometry of Life-History Trait Space

    PubMed Central

    Szekely, Pablo; Korem, Yael; Moran, Uri; Mayo, Avi; Alon, Uri

    2015-01-01

    When organisms need to perform multiple tasks they face a fundamental tradeoff: no phenotype can be optimal at all tasks. This situation was recently analyzed using Pareto optimality, showing that tradeoffs between tasks lead to phenotypes distributed on low dimensional polygons in trait space. The vertices of these polygons are archetypes—phenotypes optimal at a single task. This theory was applied to examples from animal morphology and gene expression. Here we ask whether Pareto optimality theory can apply to life history traits, which include longevity, fecundity and mass. To comprehensively explore the geometry of life history trait space, we analyze a dataset of life history traits of 2105 endothermic species. We find that, to a first approximation, life history traits fall on a triangle in log-mass log-longevity space. The vertices of the triangle suggest three archetypal strategies, exemplified by bats, shrews and whales, with specialists near the vertices and generalists in the middle of the triangle. To a second approximation, the data lies in a tetrahedron, whose extra vertex above the mass-longevity triangle suggests a fourth strategy related to carnivory. Each animal species can thus be placed in a coordinate system according to its distance from the archetypes, which may be useful for genome-scale comparative studies of mammalian aging and other biological aspects. We further demonstrate that Pareto optimality can explain a range of previous studies which found animal and plant phenotypes which lie in triangles in trait space. This study demonstrates the applicability of multi-objective optimization principles to understand life history traits and to infer archetypal strategies that suggest why some mammalian species live much longer than others of similar mass. PMID:26465336

  17. Improvements after mod Quad and triangle tilt revision surgical procedures in obstetric brachial plexus palsy

    PubMed Central

    Nath, Rahul K; Somasundaram, Chandra

    2016-01-01

    AIM To compare outcomes of our revision surgical operations in obstetric brachial plexus palsy (OBPP) patients to results of conventional operative procedures at other institutions. METHODS We analyzed our OBPP data and identified 10 female and 10 male children aged 2.0 to 11.8 years (average age 6.5 years), who had prior conventional surgical therapies at other clinics. Of the 20 patients, 18 undergone triangle tilt, 2 had only mod Quad. Among 18 patients, 8 had only triangle tilt and 10 had also mod Quad as revision surgeries with us. We analyzed the anatomical improvements and functional modified Mallet statistically before and after a year post-revision operations. RESULTS Pre-revision surgery average modified Mallet score was 12.0 ± 1.5. This functional score was greatly improved to 18 ± 2.3 (P < 0.0001) at least one-year after revision surgical procedures. Radiological scores (PHHA and glenoid version) were also improved significantly to 31.9 ± 13.6 (P < 0.001), -16.3 ± 11 (P < 0.0002), at least one-year after triangle tilt procedure. Their mean pre-triangle tilt (yet after other surgeon’s surgeries) PHHA, glenoid version and SHEAR were 14.6 ± 21.7, -31.6 ± 19.3 and 16.1 ± 14.7 respectively. CONCLUSION We demonstrate here, mod Quad and triangle tilt as successful revision surgical procedures in 20 OBPP patients, who had other surgical treatments at other clinics before presenting to us for further treatment. PMID:27900273

  18. Japan Meteorological Agency/Meteorological Research Institute-Coupled Prediction System version 1 (JMA/MRI-CPS1) for operational seasonal forecasting

    NASA Astrophysics Data System (ADS)

    Takaya, Yuhei; Yasuda, Tamaki; Fujii, Yosuke; Matsumoto, Satoshi; Soga, Taizo; Mori, Hirotoshi; Hirai, Masayuki; Ishikawa, Ichiro; Sato, Hitoshi; Shimpo, Akihiko; Kamachi, Masafumi; Ose, Tomoaki

    2017-01-01

    This paper describes the operational seasonal prediction system of the Japan Meteorological Agency (JMA), the Japan Meteorological Agency/Meteorological Research Institute-Coupled Prediction System version 1 (JMA/MRI-CPS1), which was in operation at JMA during the period between February 2010 and May 2015. The predictive skill of the system was assessed with a set of retrospective seasonal predictions (reforecasts) covering 30 years (1981-2010). JMA/MRI-CPS1 showed reasonable predictive skill for the El Niño-Southern Oscillation, comparable to the skills of other state-of-the-art systems. The one-tiered approach adopted in JMA/MRI-CPS1 improved its overall predictive skills for atmospheric predictions over those of the two-tiered approach of the previous uncoupled system. For 3-month predictions with a 1-month lead, JMA/MRI-CPS1 showed statistically significant skills in predicting 500-hPa geopotential height and 2-m temperature in East Asia in most seasons; thus, it is capable of providing skillful seasonal predictions for that region. Furthermore, JMA/MRI-CPS1 was superior overall to the previous system for atmospheric predictions with longer (4-month) lead times. In particular, JMA/MRI-CPS1 was much better able to predict the Asian Summer Monsoon than the previous two-tiered system. This enhanced performance was attributed to the system's ability to represent atmosphere-ocean coupled variability over the Indian Ocean and the western North Pacific from boreal winter to summer following winter El Niño events, which in turn influences the East Asian summer climate through the Pacific-Japan teleconnection pattern. These substantial improvements obtained by using an atmosphere-ocean coupled general circulation model underpin its success in providing more skillful seasonal forecasts on an operational basis.

  19. A minority research and education information service: Design, develop, pilot test, and implement on-line access for historically black colleges and universities and government agencies. Annual status report, September 28, 1992--September 27, 1993

    SciTech Connect

    Rodman, J.A.

    1993-08-01

    The goal of the MOLIS project was to develop, design, and pilot test on-line access to current information on minority colleges and universities as well as federal minority opportunities. Federal Information Exchange, Inc. (FIE), a diversified information services company recognized by researchers and educators as a leader in the field of information delivery services, was awarded a 5 year small business research grant to develop and implement MOLIS. Since going on-line on April 29, 1991, MOLIS has provided current information on 138 Black and Hispanic colleges and universities -- including faculty and student profiles, financial data, research centers and equipment information, precollege and education programs, emerging capabilities, enrollment data, administrative personnel data, and current events -- as well as minority opportunities from participating federal agencies. Six federal agencies are currently participating in MOLIS, including: Agency for International Development; Department of Commerce; Department of Energy; Department of Housing and Urban Development; National Aeronautics and Space Administration; and National Science Foundation.

  20. 77 FR 10746 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION... information regarding quality, appropriateness, and effectiveness of health services and patient registries...

  1. 77 FR 11117 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-24

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION..., appropriateness and value of healthcare services and with respect to quality measurement and improvement. 42...

  2. 75 FR 70677 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-18

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION... Quality (AHRQ) is to enhance the quality, appropriateness, and effectiveness of health services,...

  3. 76 FR 10905 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-28

    ... HUMAN SERVICES Agency for Healthcare Research and Quality Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research and Quality (AHRQ), Department of Health and Human Services (HHS). ACTION: Notice. SUMMARY: The Patient Safety and...

  4. NATO Agency Reform

    DTIC Science & Technology

    2011-04-30

    and tested to determine its value. We take seriously the pernicious effects of the so-called “ theory – practice” gap, which would separate the...organized around a specific product or service, there are several that fill purely functional roles , such as the Research and Technology Agency...point, strategy development theory had focused on the forces of technology, size of an organization, and structural variation. In reviewing the

  5. Estimate Evapotranspiration Using Modis Data with a Modified Triangle Method for a Semi-arid Watershed

    NASA Astrophysics Data System (ADS)

    Zhou, F.; Wang, W.; Liu, Y.

    2009-12-01

    Three major types of ET estimation methods are commonly used on the basis of remote sensed data, that is, statistical analysis method, energy balance residual method, and evaporation fraction (EF) method. Evaporation-ratio method estimates ET by calculating the ratio between latent heat flux and surface available energy (i.e., net solar radiation Rn - soil surface heat flux G) so as to avoid the calculation of sensible heat flux which has high uncertainty due to its sensitivity to the estimation of air resistance. The critical part with the EF method is the calculation of EF, for which the triangle method is most widely used. The triangle method is developed based on vegetation index ~ surface temperature (VI~Ts) feature space. The triangle method is comparatively easy to apply and based on mostly remotely sensed data, but it does not effectively distinguish soil evaporation from vegetation transpiration, and it assumes that for fully vegetated area actual ET is equal to potential ET, without considering the effects of vegetation water stress on the transpiration of plants, which result in significant overestimation of actual ET. A more recently developed EF method is the MOD16 algorithm (Nishida, 2003) which considers EF as a mixture of EF for bare soil (EFsoil) and EF for fully vegetated area (EFveg) according to the vegetation coverage (fveg), so that the contribution of soil and vegetation to total ET are explicitly separated. However, while theoretically MOD16 algorithm takes into account more physical processes, more uncertainties are introduced due to much more complicated calculations. In addition, the MOD16 algorithm is calculated based on NDVI time series whereas many studies have shown that Enhanced Vegetation Index (EVI) is a better alternative to NDVI. In the present study, we estimated ET based on Moderate Resolution Imaging Spectroradiometer (MODIS) EVI and land surface temperature data with a modified triangle method which has the same framework as

  6. A Network Analysis of Concept Maps of Triangle Concepts

    ERIC Educational Resources Information Center

    Haiyue, Jin; Khoon Yoong, Wong

    2010-01-01

    Mathematics educators and mathematics standards of curriculum have emphasised the importance of constructing the interconnectedness among mathematic concepts ("conceptual understanding") instead of only the ability to carry out standard procedures in an isolated fashion. Researchers have attempted to assess the knowledge networks in…

  7. Neonicotinoids impact bumblebee colony fitness in the field; a reanalysis of the UK’s Food & Environment Research Agency 2012 experiment

    PubMed Central

    2015-01-01

    The causes of bee declines remain hotly debated, particularly the contribution of neonicotinoid insecticides. In 2013 the UK’s Food & Environment Research Agency made public a study of the impacts of exposure of bumblebee colonies to neonicotinoids. The study concluded that there was no clear relationship between colony performance and pesticide exposure, and the study was subsequently cited by the UK government in a policy paper in support of their vote against a proposed moratorium on some uses of neonicotinoids. Here I present a simple re-analysis of this data set. It demonstrates that these data in fact do show a negative relationship between both colony growth and queen production and the levels of neonicotinoids in the food stores collected by the bees. Indeed, this is the first study describing substantial negative impacts of neonicotinoids on colony performance of any bee species with free-flying bees in a field realistic situation where pesticide exposure is provided only as part of normal farming practices. It strongly suggests that wild bumblebee colonies in farmland can be expected to be adversely affected by exposure to neonicotinoids. PMID:25825679

  8. Learner Agency

    ERIC Educational Resources Information Center

    Mick, Carola

    2011-01-01

    This article presents first results of an ethnographic research project in a Luxembourgish primary school that accompanied the development of a school project by children from the fifth grade. Analysing the data children themselves collected with Kodak Zi8 cameras in order to document their project activities, it investigates their possibilities…

  9. Effects of Communication and Transportation on Utilization of Agency Services by Rural Poor People in South Carolina. South Carolina State College Research Bulletin No. 5, January 1976.

    ERIC Educational Resources Information Center

    Howie, Marguerite Rogers; Hanna, Kathleen

    Use of five agencies offering adult education, vocational rehabilitation, food stamps, employment, and health services in Orangeburg County by rural poor people in Bowman, Elloree, and North was studied over a two-year period. The study examined whether communication, transportation, or both increased agency use. In Bowman, information about the…

  10. Studies of nuclear processes at the Triangle Universities Nuclear Laboratory. Progress report, 1 September 1994--31 August 1995

    SciTech Connect

    Ludwig, E.J.

    1995-09-01

    The Triangle Universities Nuclear Laboratory (TUNL)--a collaboration of Duke University, North Carolina State University, and the University of North Carolina at Chapel Hill--has had a very productive year. This report covers the second year of a three-year grant between the US Department of Energy and the three collaborating universities. The TUNL research program focuses on the following areas of nuclear physics: parity violation in neutron and charged-particle resonances--the mass and energy dependence of the weak interaction spreading width; chaotic behavior in {sup 30}P from studies of eigenvalue fluctuations in nuclear level schemes; studies of few-body systems; nuclear astrophysics; nuclear data evaluation for A = 3--20, for which TUNL is now the international center; high-spin spectroscopy and superdeformation in nuclei, involving collaborations at Argonne National Laboratory. Developments in technology and instrumentation have been vital to the research and training program. In this progress report the author describes: a proposed polarized {gamma}-beam facility at the Duke Free Electron Laser Laboratory; cryogenic systems and microcalorimeter development; continuing development of the Low Energy Beam Facility. The research summaries presented in this progress report are preliminary.

  11. Studies of nuclear processes at the Triangle Universities Nuclear Laboratory. Progress report, 1 September 1995--31 August 1996

    SciTech Connect

    Ludwig, E.J.

    1996-09-01

    The Triangle Universities Nuclear Laboratory (TUNL)--a collaboration of Duke University, North Carolina State University, and the University of North Carolina at Chapel Hill--has had a very productive year. This report covers parts of the second and third year of a three-year grant between the US Department of Energy and the three collaborating universities. The TUNL research program focuses on the following areas: precision test of parity-invariance violation in resonance neutron scattering at LANSCE/LANL; parity violation measurements using charged-particle resonances in A = 20--40 targets and the A = 4 system at TUNL; chaotic behavior in the nuclei {sup 30}P and {sup 34}Cl from studies of eigenvalue fluctuations in nuclear level schemes; search for anomalies in the level density (pairing phase transition) in 1f-2p shell nuclei using GEANIE at LANSCE/LANL; parity-conserving time-reversal noninvariance tests using {sup 166}Ho resonances at Geel, ORELA, or LANSCE/LANL; nuclear astrophysics; few-body nuclear systems; Nuclear Data evaluation for A = 3--20 for which TUNL is now the international center. Developments in technology and instrumentation are vital to the research and training program. Innovative work was continued in: polarized beam development; polarized target development; designing new cryogenic systems; designing new detectors; improving high-resolution beams for the KN and FN accelerators; development of an unpolarized Low-Energy Beam Facility for radiative capture studies of astrophysical interest. Preliminary research summaries are presented.

  12. An Interactive Control Algorithm Used for Equilateral Triangle Formation with Robotic Sensors

    PubMed Central

    Li, Xiang; Chen, Hongcai

    2014-01-01

    This paper describes an interactive control algorithm, called Triangle Formation Algorithm (TFA), used for three neighboring robotic sensors which are distributed randomly to self-organize into and equilateral triangle (E) formation. The algorithm is proposed based on the triangular geometry and considering the actual sensors used in robotics. In particular, the stability of the TFA, which can be executed by robotic sensors independently and asynchronously for E formation, is analyzed in details based on Lyapunov stability theory. Computer simulations are carried out for verifying the effectiveness of the TFA. The analytical results and simulation studies indicate that three neighboring robots employing conventional sensors can self-organize into E formations successfully regardless of their initial distribution using the same TFAs. PMID:24759118

  13. The Triangle Technique: a new evidence-based educational tool for pediatric medication calculations.

    PubMed

    Sredl, Darlene

    2006-01-01

    Many nursing student verbalize an aversion to mathematical concepts and experience math anxiety whenever a mathematical problem is confronted. Since nurses confront mathematical problems on a daily basis, they must learn to feel comfortable with their ability to perform these calculations correctly. The Triangle Technique, a new educational tool available to nurse educators, incorporates evidence-based concepts within a graphic model using visual, auditory, and kinesthetic learning styles to demonstrate pediatric medication calculations of normal therapeutic ranges. The theoretical framework for the technique is presented, as is a pilot study examining the efficacy of the educational tool. Statistically significant results obtained by Pearson's product-moment correlation indicate that students are better able to calculate accurate pediatric therapeutic dosage ranges after participation in the educational intervention of learning the Triangle Technique.

  14. Graphene circular polarization analyzer based on spiral metal triangle antennas arrays.

    PubMed

    Zhu, Bofeng; Ren, Guobin; Gao, Yixiao; Wu, Beilei; Wan, Chenglong; Jian, Shuisheng

    2015-09-21

    In this paper we propose a circular polarization analyzer based on spiral metal triangle antenna arrays deposited on graphene. Via the dipole antenna resonances, plasmons are excited on graphene surface and the wavefront can be tailed by arranging metal antennas into linetype, circular or spiral arrays. Especially, for spiral antenna arrays, the geometric phase effect can be cancelled by or superposed on the chirality carried within circular polarization incidence, producing spatially separated solid dot or donut shape fields at the center. Such a phenomenon enables the graphene based spiral metal triangle antennas arrays to achieve functionality as a circular polarization analyzer. Extinction ratio over 550 can be achieved and the working wavelength can be tuned by adjusting graphene Fermi level dynamically. The proposed analyzer may find applications in analyzing chiral molecules using different circularly polarized waves.

  15. A novel triangle mapping technique to study the h-index based citation distribution.

    PubMed

    Zhang, Chun-Ting

    2013-01-01

    The h-index has received wide attention in recent years. The area under the citation function is divided by the h-index into three parts, representing h-squared, excess and h-tail citations. The h-index by itself does not carry information for excess and h-tail citations, which can play an even more dominant role than h-index in determining the citation curve, and therefore it is necessary to examine the relations among them. A triangle mapping technique is proposed here to map the three percentages of these citations onto a point within a regular triangle. By viewing the distribution of mapping points, shapes of the citation functions can be studied in a perceivable form. As an example, the distribution of the mapping points for 100 most prolific economists is studied by this technique.

  16. Triangle Based Adaptive Stencils for the Solution of Hyperbolic Conservation Laws

    NASA Astrophysics Data System (ADS)

    Durlofsky, Louis J.; Engquist, Bjorn; Osher, Stanley

    1992-01-01

    A triangle based adaptive difference stencil for the numerical approximation of hyperbolic conservation laws in two space dimensions is constructed. The novelty of the resulting scheme lies in the nature of the preprocessing of the cell averaged data, which is accomplished via a nearest neighbor linear interpolation followed by a slope limiting procedure. Two such limiting procedures are suggested. The resulting method is considerably more simple than other triangle based non-oscillatory approximations which, like this scheme, approximate the flux up to second-order accuracy. Numerical results for constant and variable coefficient linear advection, as well as for nonlinear flux functions (Burgers' equation and the Buckley-Leverett equation), are presented. The observed order of convergence, after local averaging, is from 1.7 to 2.0 in L1.

  17. Pascal (Yang Hui) triangles and power laws in the logistic map

    NASA Astrophysics Data System (ADS)

    Velarde, Carlos; Robledo, Alberto

    2015-04-01

    We point out the joint occurrence of Pascal triangle patterns and power-law scaling in the standard logistic map, or more generally, in unimodal maps. It is known that these features are present in its two types of bifurcation cascades: period and chaotic-band doubling of attractors. Approximate Pascal triangles are exhibited by the sets of lengths of supercycle diameters and by the sets of widths of opening bands. Additionally, power-law scaling manifests along periodic attractor supercycle positions and chaotic band splitting points. Consequently, the attractor at the mutual accumulation point of the doubling cascades, the onset of chaos, displays both Gaussian and power-law distributions. Their combined existence implies both ordinary and exceptional statistical-mechanical descriptions of dynamical properties.

  18. 4-bit Bipolar Triangle Voltage Waveform Generator Using Single-Flux-Quantum Circuit

    NASA Astrophysics Data System (ADS)

    Watanabe, Tomoki; Takahashi, Yoshitaka; Shimada, Hiroshi; Maezawa, Masaaki; Mizugaki, Yoshinao

    SFQ digital-to-analog converters (DACs) are one of the candidates for AC voltage standards. We have proposed SFQ-DACs based on frequency modulation (FM). Bipolar output is required for applications of AC voltage standards, while our previous SFQ-DACs generated only positive voltages. In this paper, we present our design of a 4-bit bipolar triangle voltage waveform generator comprising an SFQ-DAC. The waveform generator has two output ports. Synthesized half-period waveforms are alternately generated in one of the output ports. The bipolar output is realized by observing the differential voltage between the ports. We confirmed a 72-μVPP bipolar triangle voltage waveform at the frequency of 35.7 Hz.

  19. The use of triangle diagram in the detection of explosive and illicit drugs

    NASA Astrophysics Data System (ADS)

    Sudac, Davorin; Baricevic, Martina; Obhodas, Jasmina; Franulovic, Andrej; Valkovic, Vladivoj

    2010-04-01

    A tagged neutron inspection system has been used for the detection of explosive and illicite drugs. Simulant of the RDX explosive was measured in different environments and its gamma ray spectra were compared with the gamma ray spectra of benign materials like paper, sugar and rise. "Fingerprint" of the RDX simulant was found by detecting the nitrogen as well as by making the triangle plot which coordinates show the carbon and oxygen content and density. Density was obtained by measuring the intensity of the transmited tagged neutrons. Hence, the presence of the simulant can be confirmed by using two different methods. The possibility of using the triangle plot for detection of illicit drugs like heroin, cocain and marihuana is also discused.

  20. British Chinese Children: Agency and Action

    ERIC Educational Resources Information Center

    Clayton, Carmen Lau

    2013-01-01

    The assumption that Chinese young people are passive beings with little or no agency is a dominant theme within the academic literature. However PhD research findings demonstrate how British Chinese adolescents (aged 11-14) do exhibit varying degrees of agency in their lives. Here, agency is understood as individuals having the capacity to act, to…

  1. A Personal Perspective on Triangle Universities Nuclear Laboratory Development

    NASA Astrophysics Data System (ADS)

    Clegg, Thomas B.

    2011-10-01

    Nuclear physics research in NC began seriously in 1950 when Henry Newson and his colleagues at Duke attracted support for a 4 MeV Van de Graaff accelerator with which they grew their doctoral training program. The lab's scientific achievements also grew, including the discovery in 1966 of fine structure of nuclear analog states. By then UNC and NC State had attracted Eugen Merzbacher and Worth Seagondollar who, with Newson, brought more faculty to work at an enlarged three-university, cooperative lab. Launched at Duke in 1967 with a 30 MeV Cyclograff accelerator, and subsequently equipped with a polarized H and D ion source and polarized H and ^3He targets, an extensive program in light-ion and neutron physics ensued. Faculty interest in electromagnetic interactions led to development since 2001 of TUNL's HIγS facility to produce intense 1-100 MeV polarized photon beams with small energy spread. Photonuclear reaction studies there today are producing results of unmatched quality. These 60 years of nuclear physics research have produced ˜250 doctoral graduates, many of whom have gone on to very distinguished careers. A personal perspective on these activities will be presented.

  2. Extended Long-Term (5 Years) Outcomes of Triangle Tilt Surgery in Obstetric Brachial Plexus Injury

    PubMed Central

    Nath, Rahul K; Somasundaram, Chandra

    2013-01-01

    Objective: We evaluated the "extended" long-term (5 years) functional outcomes in obstetric brachial plexus injury (OBPI) patients, who underwent triangle tilt surgery between February 2005 and January 2008. Methods: Twenty two children (9 girls and 13 boys, mean age at surgery was 5.8 years; ranging 2.1-11.8 years old), who initially presented with medial rotation contracture and scapula deformity secondary to obstetric brachial plexus injury were included in this study. Functional movements were evaluated pre-operatively, and 5 years following triangle tilt surgery by modified Mallet scale. Results: Here, we report long-term (5 years) follow-up of triangle tilt surgery for 22 OBPI patients. Upper extremity functional movements such as, external rotation (2.5±0.6 to 4.1±0.8, p<0.0001), hand-to-spine (2.6±0.6 to 3.4±1.1, p<0.005), hand-to-neck (2.7±0.7 to 4.3±0.7, p<0.0001), hand-to-mouth (2.3±0.9 (92º±33) to 4.2±0.5 (21º±16), p<0.0001), and supination (2.6±1.1 (-8.2º ±51) to 4.1±0.7 (61±32)) were significantly improved (p<0.0001), and maintained over the extended long-term (5 years). Total modified Mallet functional score was also shown to improve from 14.1±2.7 to 20.3±2.5. Conclusions: The triangle tilt surgery improved all shoulder functions significantly, and maintained over the extended long-term (5 years) in these patients. PMID:23730369

  3. Triangle and concave pentagon electrodes for an improved broadband frequency response of stripline beam position monitors

    NASA Astrophysics Data System (ADS)

    Shobuda, Yoshihiro; Chin, Yong Ho; Takata, Koji; Toyama, Takeshi; Nakamura, Keigo

    2016-02-01

    The frequency domain performance of a stripline beam position monitor depends largely on the longitudinal shape of its electrode. Some shapes other than a conventional rectangle have been proposed and tested. To attain a good impedance matching along the electrode, they need to be precisely bent down toward their downstream in proportion to their width. This is a considerable task, and a failure to comply with it will result in a large distortion of the frequency-domain transfer function from the ideal one due to unwanted signal reflections. In this report, we first propose a triangle electrode for easy fabrication and setup: it only requires that a triangularly cut flat electrode will be placed in a chamber while being obliquely inclined toward the downstream port. Theoretical and simulation results show that the simple triangle electrode has a remarkably flatter frequency response than the rectangle one. The frequency response, in particular at high frequencies, can be further improved by attaching an "apron" plate, perpendicular to the upstream edge of the electrode. The overshooting of the frequency response at low frequency can be eliminated by replacing the straight sidelines of the triangle by three-point polylines (with a result that the triangle is transformed to a concave pentagon). The concave pentagon electrode needs to be bent only once at the middle point of the polylines for a good impedance matching and thus its fabrication and setup remain to be easy. Rf measurements for the various electrode shapes have been carried out. We found that the concave pentagon electrode achieves a wide and flat frequency response up to about 4 GHz for the J-PARC Main Ring (MR).

  4. Robust Sierpiński triangle fractals on symmetry-mismatched Ag(100).

    PubMed

    Zhang, Xue; Li, Na; Liu, Liwei; Gu, Gaochen; Li, Chao; Tang, Hao; Peng, Lianmao; Hou, Shimin; Wang, Yongfeng

    2016-08-18

    Sierpiński triangle fractals were constructed on both Ag(111) and symmetry-mismatched fourfold Ag(100) surfaces through chemical reaction between H3PH molecules and Fe atoms under vacuum. Density functional theory calculations revealed that the fractals were stabilized by the strong coordination interaction between Fe and O atoms. In comparison, pure H3PH molecules formed fractals via moderately strong hydrogen bonds only on Ag(111), not on Ag(100).

  5. Discussion on triangle singularities in the Λb→J /ψ K-p reaction

    NASA Astrophysics Data System (ADS)

    Bayar, Melahat; Aceti, Francesca; Guo, Feng-Kun; Oset, Eulogio

    2016-10-01

    We have analyzed the singularities of a triangle loop integral in detail and derived a formula for an easy evaluation of the triangle singularity on the physical boundary. It is applied to the Λb→J /ψ K-p process via Λ*-charmonium-proton intermediate states. Although the evaluation of absolute rates is not possible, we identify the χc 1 and the ψ (2 S ) as the relatively most relevant states among all possible charmonia up to the ψ (2 S ). The Λ (1890 )χc 1p loop is very special, as its normal threshold and triangle singularities merge at about 4.45 GeV, generating a narrow and prominent peak in the amplitude in the case that the χc 1p is in an S wave. We also see that loops with the same charmonium and other Λ* hyperons produce less dramatic peaks from the threshold singularity alone. For the case of χc 1p →J /ψ p and quantum numbers 3 /2- or 5 /2+, one needs P and D waves, respectively, in the χc 1p , which drastically reduce the strength of the contribution and smooth the threshold peak. In this case, we conclude that the singularities cannot account for the observed narrow peak. In the case of 1 /2+, 3 /2+ quantum numbers, where χc 1p →J /ψ p can proceed in an S wave, the Λ (1890 )χc 1p triangle diagram could play an important role, though neither can assert their strength without further input from experiments and lattice QCD calculations.

  6. Agency, time, and causality

    PubMed Central

    Widlok, Thomas

    2014-01-01

    Cognitive Scientists interested in causal cognition increasingly search for evidence from non-Western Educational Industrial Rich Democratic people but find only very few cross-cultural studies that specifically target causal cognition. This article suggests how information about causality can be retrieved from ethnographic monographs, specifically from ethnographies that discuss agency and concepts of time. Many apparent cultural differences with regard to causal cognition dissolve when cultural extensions of agency and personhood to non-humans are taken into account. At the same time considerable variability remains when we include notions of time, linearity and sequence. The article focuses on ethnographic case studies from Africa but provides a more general perspective on the role of ethnography in research on the diversity and universality of causal cognition. PMID:25414683

  7. Agency, time, and causality.

    PubMed

    Widlok, Thomas

    2014-01-01

    Cognitive Scientists interested in causal cognition increasingly search for evidence from non-Western Educational Industrial Rich Democratic people but find only very few cross-cultural studies that specifically target causal cognition. This article suggests how information about causality can be retrieved from ethnographic monographs, specifically from ethnographies that discuss agency and concepts of time. Many apparent cultural differences with regard to causal cognition dissolve when cultural extensions of agency and personhood to non-humans are taken into account. At the same time considerable variability remains when we include notions of time, linearity and sequence. The article focuses on ethnographic case studies from Africa but provides a more general perspective on the role of ethnography in research on the diversity and universality of causal cognition.

  8. Ten things to get right for marine conservation planning in the Coral Triangle

    PubMed Central

    Weeks, Rebecca; Pressey, Robert L.; Wilson, Joanne R.; Knight, Maurice; Horigue, Vera; Abesamis, Rene A.; Acosta, Renerio; Jompa, Jamaluddin

    2015-01-01

    Systematic conservation planning increasingly underpins the conservation and management of marine and coastal ecosystems worldwide. Amongst other benefits, conservation planning provides transparency in decision-making, efficiency in the use of limited resources, the ability to minimise conflict between diverse objectives, and to guide strategic expansion of local actions to maximise their cumulative impact. The Coral Triangle has long been recognised as a global marine conservation priority, and has been the subject of huge investment in conservation during the last five years through the Coral Triangle Initiative on Coral Reefs, Fisheries and Food Security. Yet conservation planning has had relatively little influence in this region. To explore why this is the case, we identify and discuss 10 challenges that must be resolved if conservation planning is to effectively inform management actions in the Coral Triangle. These are: making conservation planning accessible; integrating with other planning processes; building local capacity for conservation planning; institutionalising conservation planning within governments; integrating plans across governance levels; planning across governance boundaries; planning for multiple tools and objectives; understanding limitations of data; developing better measures of progress and effectiveness; and making a long term commitment. Most important is a conceptual shift from conservation planning undertaken as a project, to planning undertaken as a process, with dedicated financial and human resources committed to long-term engagement. PMID:25110579

  9. Visualizing human brain surface from T1-weighted MR images using texture-mapped triangle meshes.

    PubMed

    Seppä, Mika; Hämäläinen, Matti

    2005-05-15

    We describe a novel method for visualizing brain surface from anatomical magnetic resonance images (MRIs). The method utilizes standard 2D texture mapping capabilities of OpenGL graphics language. It combines the benefits of volume rendering and triangle-mesh rendering, allowing fast and realistic-looking brain surface visualizations. Consequently, relatively low-resolution triangle meshes can be used while the texture images provide the necessary details. The mapping is optimized to provide good texture-image resolution for the triangles with respect to their original sizes in the 3D MRI volume. The actual 2D texture images are generated by depth integration from the original MRI data. Our method adapts to anisotropic voxel sizes without any need to interpolate the volume data into cubic voxels, and it is very well suited for visualizing brain anatomy from standard T(1)-weighted MR images. Furthermore, other OpenGL objects and techniques can be easily combined, for example, to use cut planes, to show other surfaces and objects, and to visualize functional data in addition to the anatomical information.

  10. Coherent acoustic oscillations of nanoscale Au triangles and pyramids: influence of size and substrate

    NASA Astrophysics Data System (ADS)

    Taubert, R.; Hudert, F.; Bartels, A.; Merkt, F.; Habenicht, A.; Leiderer, P.; Dekorsy, T.

    2007-10-01

    We investigate the impulsively excited acoustic dynamics of nanoscale Au triangles of different sizes and thicknesses on silicon and glass substrates. We employ high-speed asynchronous optical sampling in order to study the damping of the acoustic vibrations with high sensitivity in the time domain. From the observed damping dynamics we deduce the reflection coefficient of acoustic energy from the gold-substrate interface. The observed damping times of coherent acoustic vibrations are found to be significantly longer than expected from the acoustic impedance mismatch for an ideal gold-substrate interface, hence pointing towards a reduced coupling strength. The strength of the coupling can be determined quantitatively. For Au triangles with large lateral size-to-thickness ratio, i.e. a small aspect ratio, the acoustic dynamics is dominated by a thickness oscillation similar to that of a closed film. For triangles with large aspect ratio the coherent acoustic excitation consists of a superposition of different three-dimensional modes which exhibit different damping times.

  11. [Selection of back-ground electrolyte in capillary zone electrophoresis by triangle and tetrahedron optimization methods].

    PubMed

    Sun, Guoxiang; Song, Wenjing; Lin, Ting

    2008-03-01

    The triangle and tetrahedron optimization methods were developed for the selection of back-ground electrolyte (BGE) in capillary zone electrophoresis (CZE). Chromatographic fingerprint index F and chromatographic fingerprint relative index F(r) were used as the objective functions for the evaluation, and the extract of Saussurea involucrate by water was used as the sample. The BGE was composed of borax, boric acid, dibasic sodium phosphate and sodium dihydrogen phosphate solution with different concentrations using triangle and tetrahedron optimization methods. Re-optimization was carried out by adding organic modifier to the BGE and adjusting the pH value. In triangle method, when 50 mmol/L borax-150 mmol/L sodium dihydrogen phosphate (containing 3% acetonitrile) (1 : 1, v/v) was used as BGE, the isolation was considered to be satisfactory. In tetrahedron method, the best BGE was 50 mmol/L borax-150 mmol/L sodium dihydrogen phosphate-200 mmol/L boric acid (1 : 1 : 2, v/v/v; adjusting the pH value to 8.55 by 0.1 mol/L sodium hydroxide). There were 28 peaks and 25 peaks under the different conditions respectively. The results showed that the methods could be applied to the selection of BGE in CZE of the extract of traditional Chinese medicine by water or ethanol.

  12. Ultrafast Photoinduced Symmetry-Breaking Charge Separation and Electron Sharing in Perylenediimide Molecular Triangles.

    PubMed

    Wu, Yilei; Young, Ryan M; Frasconi, Marco; Schneebeli, Severin T; Spenst, Peter; Gardner, Daniel M; Brown, Kristen E; Würthner, Frank; Stoddart, J Fraser; Wasielewski, Michael R

    2015-10-21

    We report on a visible-light-absorbing chiral molecular triangle composed of three covalently linked 1,6,7,12-tetra(phenoxy)perylene-3,4:9,10-bis(dicarboximide) (PDI) units. The rigid triangular architecture reduces the electronic coupling between the PDIs, so ultrafast symmetry-breaking charge separation is kinetically favored over intramolecular excimer formation, as revealed by femtosecond transient absorption spectroscopy. Photoexcitation of the PDI triangle dissolved in CH2Cl2 gives PDI(+•)-PDI(-•) in τCS = 12.0 ± 0.2 ps. Fast subsequent intramolecular electron/hole hopping can equilibrate the six possible energetically degenerate ion-pair states, as suggested by electron paramagnetic resonance/electron-nuclear double resonance spectroscopy, which shows that one-electron reduction of the PDI triangle results in complete electron sharing among the three PDIs. Charge recombination of PDI(+•)-PDI(-•) to the ground state occurs in τCR = 1.12 ± 0.01 ns with no evidence of triplet excited state formation.

  13. Trautmann's triangle anatomy with application to posterior transpetrosal and other related skull base procedures.

    PubMed

    Tubbs, R Shane; Griessenauer, Christoph; Loukas, Marios; Ansari, Shaheryar F; Fritsch, Michael H; Cohen-Gadol, Aaron A

    2014-10-01

    Trautmann's triangle (TT) faces the cerebellopontine angle and is exposed during posterior transpetrosal approaches. However, reports on the morphometric analysis of this structure are lacking in the literature. The goal was to better understand this important operative corridor. TT was exposed from an external approach (transmastoid) in ten cadavers (20 sides) and from an internal approach on 20 dry adult temporal bones. Measurements included calculation of the area of TT and the distance of the endolymphatic sac from the anterior border of the sigmoid sinus. The area range of TT was 45-210 mm(2) (mean 151 mm(2); SD 37 mm(2)). Three types of triangles were identified based on area. Type I triangles had areas less than 75 mm(2), Type II areas were 75-149 mm(2), and Type III areas were 150 mm(2) and greater. These types were observed in 37.5%, 35%, and 27.5% of sides, respectively. The distance from the jugular bulb's anterior border to the posterior border of the posterior semicircular canal ranged from 6 to 11 mm (mean 8.5 mm). The endolymphatic sac was located in the inferior portion of TT and traveled anterior to the sigmoid sinus. The horizontal distance from the anterior edge of the sigmoid sinus to the posterior edge of the endolymphatic sac ranged from 0 to 13.5 mm (mean 9 mm). Additional anatomic knowledge regarding TT may improve neurosurgical procedures in this region by avoiding intrusion into the endolymphatic sac and sigmoid sinus.

  14. New orientations in the stereographic triangle for self-assembled faceting

    NASA Astrophysics Data System (ADS)

    Méndez-Camacho, R.; Méndez-García, V. H.; López-López, M.; Cruz-Hernández, E.

    2016-06-01

    Energetically unstable crystalline surfaces, among their uses, can be templates for the growth of periodic arrays of one-dimensional (1D) nanoscale structures. However, few studies have explored self-assembled faceting on high-index (HI) planes inside the stereographic triangle, and extant studies have not produced any criteria for encouraging the formation of one-dimensional periodic arrays. In this Letter, by analyzing the MBE growth of homoepitaxial facets on (631)A GaAs, a HI plane inside the triangle, we present a criteria to produce highly uniform 1D periodic arrays on unexplored surfaces. These families of planes are those belonging to the lines connecting the energetically stable HI GaAs (11 5 2) plane with any of the (100), (110), and (111) planes at the corners of the stereographic triangle. This novel strategy can lead to new possibilities in self-assembling 1D structures and manipulating physical properties, which in turn may result in new HI- and 1D-based experiments and devices.

  15. Gamma-ray triangles: A possible signature of asymmetric dark matter in indirect searches

    NASA Astrophysics Data System (ADS)

    Ibarra, Alejandro; Lopez-Gehler, Sergio; Molinaro, Emiliano; Pato, Miguel

    2016-11-01

    We introduce a new type of gamma-ray spectral feature, which we denominate gamma-ray triangle. This spectral feature arises in scenarios where dark matter self-annihilates via a chiral interaction into two Dirac fermions, which subsequently decay in flight into another fermion and a photon. The resulting photon spectrum resembles a sharp triangle and can be readily searched for in the gamma-ray sky. Using data from the Fermi-LAT and H.E.S.S. instruments, we find no evidence for such a spectral feature and, therefore, set strong upper bounds on the corresponding annihilation cross section. A concrete realization of a scenario yielding gamma-ray triangles consists of an asymmetric dark matter model where the dark matter particle carries lepton number. We show explicitly that this class of models can lead to intense gamma-ray spectral features, potentially at the reach of upcoming gamma-ray telescopes, opening a new window to explore asymmetric dark matter through indirect searches.

  16. Triangles in ROC space: History and theory of "nonparametric" measures of sensitivity and response bias.

    PubMed

    Macmillan, N A; Creelman, C D

    1996-06-01

    Can accuracy and response bias in two-stimulus, two-response recognition or detection experiments be measured nonparametrically? Pollack and Norman (1964) answered this question affirmatively for sensitivity, Hodos (1970) for bias: Both proposed measures based on triangular areas in receiver-operating characteristic space. Their papers, and especially a paper by Grier (1971) that provided computing formulas for the measures, continue to be heavily cited in a wide range of content areas. In our sample of articles, most authors described triangle-based measures as making fewer assumptions than measures associated with detection theory. However, we show that statistics based on products or ratios of right triangle areas, including a recently proposed bias index and a not-yetproposed but apparently plausible sensitivity index, are consistent with a decision process based on logistic distributions. Even the Pollack and Norman measure, which is based on non-right triangles, is approximately logistic for low values of sensitivity. Simple geometric models for sensitivity and bias are not nonparametric, even if their implications are not acknowledged in the defining publications.

  17. Ten things to get right for marine conservation planning in the Coral Triangle.

    PubMed

    Weeks, Rebecca; Pressey, Robert L; Wilson, Joanne R; Knight, Maurice; Horigue, Vera; Abesamis, Rene A; Acosta, Renerio; Jompa, Jamaluddin

    2014-01-01

    Systematic conservation planning increasingly underpins the conservation and management of marine and coastal ecosystems worldwide. Amongst other benefits, conservation planning provides transparency in decision-making, efficiency in the use of limited resources, the ability to minimise conflict between diverse objectives, and to guide strategic expansion of local actions to maximise their cumulative impact. The Coral Triangle has long been recognised as a global marine conservation priority, and has been the subject of huge investment in conservation during the last five years through the Coral Triangle Initiative on Coral Reefs, Fisheries and Food Security. Yet conservation planning has had relatively little influence in this region. To explore why this is the case, we identify and discuss 10 challenges that must be resolved if conservation planning is to effectively inform management actions in the Coral Triangle. These are: making conservation planning accessible; integrating with other planning processes; building local capacity for conservation planning; institutionalising conservation planning within governments; integrating plans across governance levels; planning across governance boundaries; planning for multiple tools and objectives; understanding limitations of data; developing better measures of progress and effectiveness; and making a long term commitment. Most important is a conceptual shift from conservation planning undertaken as a project, to planning undertaken as a process, with dedicated financial and human resources committed to long-term engagement.

  18. III. Evaluation of the forward triangle area in dye curves from infants and children studied by earpiece densitometry.

    PubMed

    Wallgren, C G

    1975-01-01

    Onehundred and six dye curves recorded by earpiece densitometry in shunt-free children were analysed with respect to the spatial relationships between the forward triangle and the area under the total primary dye curve. It is suggested that the relationship between these two areas, the forward triangle factor, should be 0.32 for studies in children with the use of dichromatic earpiece densitometry.

  19. Adapting Clausewitz to the Information Age: How Traditional News Media and Social Networking are Combining to Expand the Triangle

    DTIC Science & Technology

    2011-05-04

    utilized. 2 In this example, the metaphysical tendencies—passion, chance, rationale calculus— find their representations in the interconnected and...error is clearly demonstrated in his graphic portrayal of “squaring the triangle.” On each side of his triangle is placed a tendency of the metaphysical ...elaborate, each of the aspects works because of its nature as a physical actor, giving the metaphysical tendencies that comprise Clausewitz‟s trinity form

  20. Self-assembled Pd(II) metallocycles using an ambidentate donor and the study of square-triangle equilibria.

    PubMed

    Ghosh, Sushobhan; Mukherjee, Partha Sarathi

    2009-03-16

    The self-assembly reaction of a cis-blocked 90 degrees square planar metal acceptor with a symmetrical linear flexible linker is expected to yield a [4 + 4] self-assembled square, a [3 + 3] assembled triangle, or a mixture of these. However, if the ligand is a nonsymmetrical ambidentate, it is expected to form a complex mixture comprising several linkage isomeric squares and triangles as a result of different connectivities of the ambidentate linker. We report instead that the reaction of a 90 degrees acceptor cis-(dppf)Pd(OTf)(2) [where dppf = 1,1'-bis(diphenylphosphino)ferrocene] with an equimolar amount of the ambidentate unsymmetrical ligand Na-isonicotinate unexpectedly yields a mixture of symmetrical triangles and squares in the solution. An analogous reaction using cis-(tmen)Pd(NO(3))(2) instead of cis-(dppf)Pd(OTf)(2) also produced a mixture of symmetrical triangles and squares in the solution. In both cases the square was isolated as the sole product in the solid state, which was characterized by a single crystal structure analysis. The equilibrium between the triangle and the square in the solution is governed by the enthalpic and entropic contributions. The former parameter favors the formation of the square due to less strain in the structure whereas the latter one favors the formation of triangles due to the formation of more triangles from the same number of starting linkers. The effects of temperature and concentration on the equilibria have been studied by NMR techniques. This represents the first report on the study of square-triangle equilibria obtained using a nonsymmetric ambidentate linker. Detail NMR spectroscopy along with the ESI-mass spectrometry unambiguously identified the components in the mixture while the X-ray structure analysis determined the solid-state structure.

  1. Identification of the "minimal triangle" and other common event-to-event transitions in conflict and containment incidents.

    PubMed

    Bowers, Len; James, Karen; Quirk, Alan; Wright, Steve; Williams, Hilary; Stewart, Duncan

    2013-07-01

    Although individual conflict and containment events among acute psychiatric inpatients have been studied in some detail, the relationship of these events to each other has not. In particular, little is known about the temporal order of events for individual patients. This study aimed to identify the most common pathways from event to event. A sample of 522 patients was recruited from 84 acute psychiatric wards in 31 hospital locations in London and the surrounding areas during 2009-2010. Data on the order of conflict and containment events were collected for the first two weeks of admission from patients' case notes. Event-to-event transitions were tabulated and depicted diagrammatically. Event types were tested for their most common temporal placing in sequences of events. Most conflict and containment occurs within and between events of the minimal triangle (verbal aggression, de-escalation, and PRN medication), and the majority of these event sequences conclude in no further events; a minority transition to other, more severe, events. Verbal abuse and medication refusal were more likely to start sequences of disturbed behaviour. Training in the prevention and management of violence needs to acknowledge that a gradual escalation of patient behaviour does not always occur. Verbal aggression is a critical initiator of conflict events, and requires more detailed and sustained research on optimal management and prevention strategies. Similar research is required into medication refusal by inpatients.

  2. Ten Triangles around Cavernous Sinus for Surgical Approach, Described by Schematic Diagram and Three Dimensional Models with the Sectioned Images

    PubMed Central

    2016-01-01

    For the surgical approach to lesions around the cavernous sinus (CS), triangular spaces around CS have been devised. However, educational materials for learning the triangles were insufficient. The purpose of this study is to present educational materials about the triangles, consisting of a schematic diagram and 3-dimensional (3D) models with sectioned images. To achieve the purposes, other studies were analyzed to establish new definitions and names of the triangular spaces. Learning materials including schematic diagrams and 3D models with cadaver's sectioned images were manufactured. Our new definition was attested by observing the sectioned images and 3D models. The triangles and the four representative surgical approaches were stereoscopically indicated on the 3D models. All materials of this study were put into Portable Document Format file and were distributed freely at our homepage (anatomy.dongguk.ac.kr/triangles). By using our schematic diagram and the 3D models with sectioned images, ten triangles and the related structures could be understood and observed accurately. We expect that our data will contribute to anatomy education, surgery training, and radiologic understanding of the triangles and related structures. PMID:27510391

  3. Ten Triangles around Cavernous Sinus for Surgical Approach, Described by Schematic Diagram and Three Dimensional Models with the Sectioned Images.

    PubMed

    Chung, Beom Sun; Ahn, Young Hwan; Park, Jin Seo

    2016-09-01

    For the surgical approach to lesions around the cavernous sinus (CS), triangular spaces around CS have been devised. However, educational materials for learning the triangles were insufficient. The purpose of this study is to present educational materials about the triangles, consisting of a schematic diagram and 3-dimensional (3D) models with sectioned images. To achieve the purposes, other studies were analyzed to establish new definitions and names of the triangular spaces. Learning materials including schematic diagrams and 3D models with cadaver's sectioned images were manufactured. Our new definition was attested by observing the sectioned images and 3D models. The triangles and the four representative surgical approaches were stereoscopically indicated on the 3D models. All materials of this study were put into Portable Document Format file and were distributed freely at our homepage (anatomy.dongguk.ac.kr/triangles). By using our schematic diagram and the 3D models with sectioned images, ten triangles and the related structures could be understood and observed accurately. We expect that our data will contribute to anatomy education, surgery training, and radiologic understanding of the triangles and related structures.

  4. The International Atomic Energy Agency software package for the analysis of scintigraphic renal dynamic studies: a tool for the clinician, teacher, and researcher.

    PubMed

    Zaknun, John J; Rajabi, Hossein; Piepsz, Amy; Roca, Isabel; Dondi, Maurizio

    2011-01-01

    Under the auspices of the International Atomic Energy Agency, a new-generation, platform-independent, and x86-compatible software package was developed for the analysis of scintigraphic renal dynamic imaging studies. It provides nuclear medicine professionals cost-free access to the most recent developments in the field. The software package is a step forward towards harmonization and standardization. Embedded functionalities render it a suitable tool for education, research, and for receiving distant expert's opinions. Another objective of this effort is to allow introducing clinically useful parameters of drainage, including normalized residual activity and outflow efficiency. Furthermore, it provides an effective teaching tool for young professionals who are being introduced to dynamic kidney studies by selected teaching case studies. The software facilitates a better understanding through practically approaching different variables and settings and their effect on the numerical results. An effort was made to introduce instruments of quality assurance at the various levels of the program's execution, including visual inspection and automatic detection and correction of patient's motion, automatic placement of regions of interest around the kidneys, cortical regions, and placement of reproducible background region on both primary dynamic and on postmicturition studies. The user can calculate the differential renal function through 2 independent methods, the integral or the Rutland-Patlak approaches. Standardized digital reports, storage and retrieval of regions of interest, and built-in database operations allow the generation and tracing of full image reports and of numerical outputs. The software package is undergoing quality assurance procedures to verify the accuracy and the interuser reproducibility with the final aim of launching the program for use by professionals and teaching institutions worldwide.

  5. The search for a source rock for the giant Tar Sand triangle accumulation, southeastern Utah

    USGS Publications Warehouse

    Huntoon, J.E.; Hansley, P.L.; Naeser, N.D.

    1999-01-01

    A large proportion (about 36%) of the world's oil resource is contained in accumulations of heavy oil or tar. In these large deposits of degraded oil, the oil in place represents only a fraction of what was present at the time of accumulation. In many of these deposits, the source of the oil is unknown, and the oil is thought to have migrated over long distances to the reservoirs. The Tar Sand triangle in southeastern Utah contains the largest tar sand accumulation in the United States, with 6.3 billion bbl of heavy oil estimated to be in place. The deposit is thought to have originally contained 13-16 billion bbl prior to the biodegradation, water washing, and erosion that have taken place since the middle - late Tertiary. The source of the oil is unknown. The tar is primarily contained within the Lower Permian White Rim Sandstone, but extends into permeable parts of overlying and underlying beds. Oil is interpreted to have migrated into the White Rim sometime during the Tertiary when the formation was at a depth of approximately 3500 m. This conclusion is based on integration of fluid inclusion analysis, time-temperature reconstruction, and apatite fission-track modeling for the White Rim Sandstone. Homogenization temperatures cluster around 85-90??C for primary fluid inclusions in authigenic, nonferroan dolomite in the White Rim. The fluid inclusions are associated with fluorescent oil-bearing inclusions, indicating that dolomite precipitation was coeval with oil migration. Burial reconstruction suggests that the White Rim Sandstone reached its maximum burial depth from 60 to 24 Ma, and that maximum burial was followed by unroofing from 24 to 0 Ma. Time-temperature modeling indicates that the formation experienced temperatures of 85-90??C from about 35 to 40 Ma during maximum burial. Maximum formation temperatures of about 105-110??C were reached at about 24 Ma, just prior to unroofing. Thermal modeling is used to examine the history of potential source rocks

  6. 45 CFR 630.645 - Federal agency or agency.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... or agency. Federal agency or agency means any United States executive department, military department... (including the Executive Office of the President), or any independent regulatory agency....

  7. 41 CFR 105-74.645 - Federal agency or agency.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ....645 Federal agency or agency. Federal agency or agency means any United States executive department... the executive branch (including the Executive Office of the President), or any independent...

  8. Understanding the murky history of the Coral Triangle: Miocene corals and reef habitats in East Kalimantan (Indonesia)

    NASA Astrophysics Data System (ADS)

    Santodomingo, Nadiezhda; Renema, Willem; Johnson, Kenneth G.

    2016-09-01

    Studies on ancient coral communities living in marginal conditions, including low light, high turbidity, extreme temperatures, or high nutrients, are important to understand the current structure of reefs and how they could potentially respond to global changes. The main goal of this study was to document the rich and well-preserved fossil coral fauna preserved in Miocene exposures of the Kutai Basin in East Kalimantan, Indonesia. Our collections include almost forty thousand specimens collected from 47 outcrops. Seventy-nine genera and 234 species have been identified. Three different coral assemblages were found corresponding to small patch reefs that developed under the influence of high siliciclastic inputs from the Mahakam Delta. Coral assemblages vary in richness, structure, and composition. Platy coral assemblages were common until the Serravallian (Middle Miocene), while branching coral assemblages became dominant in the Tortonian (Late Miocene). By the late Tortonian massive coral assemblages dominated, similar to modern-style coral framework. Our results suggest that challenging habitats, such as the Miocene turbid habitats of East Kalimantan, might have played an important role during the early diversification of the Coral Triangle by hosting a pool of resilient species more likely to survive the environmental changes that have affected this region since the Cenozoic. Further research that integrates fossil and recent turbid habitats may provide a glimpse into the dynamics and future of coral reefs as "typical" clear-water reefs continue to decline in most regions.

  9. Soil Water Content Assessment: Critical Issues Concerning the Operational Application of the Triangle Method

    PubMed Central

    Maltese, Antonino; Capodici, Fulvio; Ciraolo, Giuseppe; La Loggia, Goffredo

    2015-01-01

    Knowledge of soil water content plays a key role in water management efforts to improve irrigation efficiency. Among the indirect estimation methods of soil water content via Earth Observation data is the triangle method, used to analyze optical and thermal features because these are primarily controlled by water content within the near-surface evaporation layer and root zone in bare and vegetated soils. Although the soil-vegetation-atmosphere transfer theory describes the ongoing processes, theoretical models reveal limits for operational use. When applying simplified empirical formulations, meteorological forcing could be replaced with alternative variables when the above-canopy temperature is unknown, to mitigate the effects of calibration inaccuracies or to account for the temporal admittance of the soil. However, if applied over a limited area, a characterization of both dry and wet edges could not be properly achieved; thus, a multi-temporal analysis can be exploited to include outer extremes in soil water content. A diachronic empirical approach introduces the need to assume a constancy of other meteorological forcing variables that control thermal features. Airborne images were acquired on a Sicilian vineyard during most of an entire irrigation period (fruit-set to ripening stages, vintage 2008), during which in situ soil water content was measured to set up the triangle method. Within this framework, we tested the triangle method by employing alternative thermal forcing. The results were inaccurate when air temperature at airborne acquisition was employed. Sonic and aerodynamic air temperatures confirmed and partially explained the limits of simultaneous meteorological forcing, and the use of proxy variables improved model accuracy. The analysis indicates that high spatial resolution does not necessarily imply higher accuracies. PMID:25808771

  10. High-order triangle-based discontinuous Galerkin methods for hyperbolic equations on a rotating sphere

    SciTech Connect

    Giraldo, Francis X. . E-mail: giraldo@nrlmry.navy.mil

    2006-05-20

    High-order triangle-based discontinuous Galerkin (DG) methods for hyperbolic equations on a rotating sphere are presented. The DG method can be characterized as the fusion of finite elements with finite volumes. This DG formulation uses high-order Lagrange polynomials on the triangle using nodal sets up to 15th order. The finite element-type area integrals are evaluated using order 2N Gauss cubature rules. This leads to a full mass matrix which, unlike for continuous Galerkin (CG) methods such as the spectral element (SE) method presented in Giraldo and Warburton [A nodal triangle-based spectral element method for the shallow water equations on the sphere, J. Comput. Phys. 207 (2005) 129-150], is small, local and efficient to invert. Two types of finite volume-type flux integrals are studied: a set based on Gauss-Lobatto quadrature points (order 2N - 1) and a set based on Gauss quadrature points (order 2N). Furthermore, we explore conservation and advection forms as well as strong and weak forms. Seven test cases are used to compare the different methods including some with scale contractions and shock waves. All three strong forms performed extremely well with the strong conservation form with 2N integration being the most accurate of the four DG methods studied. The strong advection form with 2N integration performed extremely well even for flows with shock waves. The strong conservation form with 2N - 1 integration yielded results almost as good as those with 2N while being less expensive. All the DG methods performed better than the SE method for almost all the test cases, especially for those with strong discontinuities. Finally, the DG methods required less computing time than the SE method due to the local nature of the mass matrix.

  11. Phylogeography and limited genetic connectivity in the endangered boring giant clam across the Coral Triangle.

    PubMed

    DeBoer, Timery S; Subia, Matthew D; Erdmann, Mark V; Kovitvongsa, Katie; Barber, Paul H

    2008-10-01

    The Coral Triangle is the global center of marine biodiversity; however, its coral reefs are critically threatened. Because of the bipartite life history of many marine species with sedentary adults and dispersive pelagic larvae, designing effective marine protected areas requires an understanding of patterns of larval dispersal and connectivity among geographically discrete populations. We used mtDNA sequence data to examine patterns of genetic connectivity in the boring giant clam (Tridacna crocea) in an effort to guide conservation efforts within the Coral Triangle. We collected an approximately 485 base pair fragment of mtDNA cytochrome c oxidase 1 (CO1) from 414 individuals at 26 sites across Indonesia. Genetic structure was strong between regions (phi(ST)=0.549, p < 0.00001) with 3 strongly supported clades: one restricted to western Sumatra, another distributed across central Indonesia, and a third limited to eastern Indonesia and Papua. Even within the single largest clade, small but significant genetic structure was documented (phi(ST)=0.069, p < 0.00001), which indicates limited gene flow within and among phylogeographic regions. Significant patterns of isolation by distance indicated an average dispersal distance of only 25-50 km, which is far below dispersal predictions of 406-708 km derived from estimates of passive dispersal over 10 days via surface currents. The strong regional genetic structure we found indicates potent limits to genetic and demographic connectivity for this species throughout the Coral Triangle and provides a regional context for conservation planning. The recovery of 3 distinct evolutionarily significant units within a well-studied taxonomic group suggests that biodiversity in this region may be significantly underestimated and that Tridacna taxa may be more endangered than currently recognized.

  12. Building Triangles: Research and the Realization of Self in Making Sense

    ERIC Educational Resources Information Center

    Godwin, Mary

    2007-01-01

    Working with first-year students at Purdue University, the author, a composition instructor, joined efforts with librarian Alexius Smith-Macklin to explore the efficacy of a collaborative approach to freshman writing instruction at the university level. Combining expertise from the Purdue programs of English education, theory and cultural studies,…

  13. Cost, Outcome, and Oversight of Local Governance Program Contracts with Research Triangle Institute

    DTIC Science & Technology

    2008-10-21

    MPRI, Inc. TM 1,885,000 09/03/03 - 03/25/05 Near East Foundation CPFF 398,586 04/11/03 - 06/30/04 RTI Polska TM 1,410,894 07/28/03 - 01/31/05...03/01/06 - 05/31/06 Int’l City/County Mgmt Assoc CPFF 1,521,178 05/09/05 - 12/31/08 NYBI FP N/A 07/26/06 - 05/08/09 RTI Polska T&M 128,016 11/01

  14. 78 FR 23958 - Manufacturer of Controlled Substances; Notice of Application; Research Triangle Institute

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-23

    ... following basic classes of controlled substances: Drug Schedule Marihuana (7360) I Cocaine (9041) II The Institute will manufacture marihuana, and cocaine derivatives for use by their customers in analytical...

  15. 77 FR 30327 - Manufacturer of Controlled Substances; Notice Of Application; Research Triangle Institute

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-22

    ... substances: Drug Schedule Marihuana (7360) I Cocaine (9041) II The Institute will manufacture marihuana, and cocaine derivatives for use by their customers in analytical kits, reagents, and reference standards...

  16. 78 FR 46372 - Manufacturer of Controlled Substances; Notice of Registration; Research Triangle Institute

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-31

    ... classes of controlled substances: Drug Schedule Marihuana (7360) I Cocaine (9041) II The Institute will manufacture marihuana, and cocaine derivatives for use by their customers in analytical kits, reagents,...

  17. 78 FR 46369 - Importer of Controlled Substances; Notice of Application; Research Triangle Institute

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-31

    ... intermediate (9802) II Morphine (9300) II Nabilone (7379) II Opium, raw (9600) II Opium extracts (9610) II Opium fluid extract (9620) II Opium tincture (9630) II Opium poppy/Poppy Straw (9650) II Oripavine (9330) II Poppy Straw Concentrate (9670) II Opium, granulated (9640) II Oxycodone (9143) II...

  18. 77 FR 47111 - Manufacturer of Controlled Substances; Notice of Registration; Research Triangle Institute

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-07

    ... Methyldihydromorphine (9304) I Morpheridine (9632) I Morphine methylbromide (9305) I Morphine methylsulfonate (9306) I Morphine-N-Oxide (9307) I Myrophine (9308) I N,N-Dimethylamphetamine (1480) I N-Benzylpiperazine (7493) I N... Methylphenidate (1724) II Metopon (9260) II Moramide intermediate (9802) II Morphine (9300) II Nabilone (7379)...

  19. 77 FR 34069 - Importer of Controlled Substances; Notice of Application; Research Triangle Institute

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-08

    ... (9304) I Morpheridine (9632) I Morphine methylbromide (9305) I Morphine methylsulfonate (9306) I Morphine-N-Oxide (9307) I Myrophine (9308) I N,N-Dimethylamphetamine (1480) I N-Benzylpiperazine (7493) I... Methylphenidate (1724) II Metopon (9260) II Moramide intermediate (9802) II Morphine (9300) II Nabilone (7379)...

  20. GaAs(2 5 11): a new stable surface within the stereographic triangle.

    PubMed

    Geelhaar, L; Márquez, J; Kratzer, P; Jacobi, K

    2001-04-23

    The atomic structure of GaAs(2 5 11), a hitherto unknown stable surface, has been determined by in situ scanning tunneling microscopy and first-principles electronic structure calculations. This orientation is located within the stereographic triangle, i.e., far away from all low-index surfaces. A low-energy ( 1x1) reconstruction containing arsenic dimers forms on the surface. The analysis of the surface structure shows that, for semiconductor surfaces, the gain in stability due to minimization of the number of dangling bonds is more important than the gain from rendering a semiconducting ground state.

  1. Top-Higgs and top-pion phenomenology in the top triangle moose model

    NASA Astrophysics Data System (ADS)

    Chivukula, R. Sekhar; Simmons, Elizabeth H.; Coleppa, Baradhwaj; Logan, Heather E.; Martin, Adam

    2011-03-01

    We discuss the deconstructed version of a topcolor-assisted technicolor model wherein the mechanism of top quark mass generation is separated from the rest of electroweak symmetry breaking. The minimal deconstructed version of this scenario is a “triangle moose” model, where the top quark gets its mass from coupling to a top-Higgs field, while the gauge boson masses are generated from a Higgsless sector. The spectrum of the model includes scalar (top-Higgs) and pseudoscalar (top-pion) states. In this paper, we study the properties of these particles, discuss their production mechanisms and decay modes, and suggest how best to search for them at the LHC.

  2. Top-Higgs and top-pion phenomenology in the top triangle moose model

    SciTech Connect

    Chivukula, R. Sekhar; Simmons, Elizabeth H.; Coleppa, Baradhwaj; Logan, Heather E.; Martin, Adam

    2011-03-01

    We discuss the deconstructed version of a topcolor-assisted technicolor model wherein the mechanism of top quark mass generation is separated from the rest of electroweak symmetry breaking. The minimal deconstructed version of this scenario is a ''triangle moose'' model, where the top quark gets its mass from coupling to a top-Higgs field, while the gauge boson masses are generated from a Higgsless sector. The spectrum of the model includes scalar (top-Higgs) and pseudoscalar (top-pion) states. In this paper, we study the properties of these particles, discuss their production mechanisms and decay modes, and suggest how best to search for them at the LHC.

  3. Synthesis of Vertically Standing MoS2 Triangles on SiC

    PubMed Central

    Lan, Feifei; Lai, Zhanping; Xu, Yongkuan; Cheng, Hongjuan; Wang, Zaien; Qi, Chengjun; Chen, Jianli; Zhang, Song

    2016-01-01

    Layered material MoS2 has been attracting much attention due to its excellent electronical properties and catalytic property. Here we report the synthesis of vertically standing MoS2 triangles on silicon carbon(SiC), through a rapid sulfidation process. Such edge-terminated films are metastable structures of MoS2, which may find applications in FinFETs and catalytic reactions. We have confirmed the catalytic property in a hydrogen evolution reaction(HER). The Tafel slope is about 54mV/decade. PMID:27550237

  4. 5 CFR 2641.302 - Separate agency components.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... served in a senior employee position in the Agency for Medical Research, an agency within Department X... from the position, the mission of the Agency for Medical Research is narrowed and it is renamed the... various other parts of the Department to continue their work on medical research unrelated to cancer....

  5. 5 CFR 2641.302 - Separate agency components.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... served in a senior employee position in the Agency for Medical Research, an agency within Department X... from the position, the mission of the Agency for Medical Research is narrowed and it is renamed the... various other parts of the Department to continue their work on medical research unrelated to cancer....

  6. 5 CFR 2641.302 - Separate agency components.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... served in a senior employee position in the Agency for Medical Research, an agency within Department X... from the position, the mission of the Agency for Medical Research is narrowed and it is renamed the... various other parts of the Department to continue their work on medical research unrelated to cancer....

  7. 5 CFR 2641.302 - Separate agency components.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... served in a senior employee position in the Agency for Medical Research, an agency within Department X... from the position, the mission of the Agency for Medical Research is narrowed and it is renamed the... various other parts of the Department to continue their work on medical research unrelated to cancer....

  8. 5 CFR 2641.302 - Separate agency components.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... served in a senior employee position in the Agency for Medical Research, an agency within Department X... from the position, the mission of the Agency for Medical Research is narrowed and it is renamed the... various other parts of the Department to continue their work on medical research unrelated to cancer....

  9. ARSENIC IN DRINKING WATER: USING SOUND SCIENCE FOR RISK MANAGEMENT AND ASSISTING COMMUNITY DECISION-MAKERS - A MULTI-AGENCY, COMMUNITY-BASED RESEARCH PROJECT

    EPA Science Inventory

    Studies have indicated that arsenic concentrations greater than the new U.S. Environmental Protection Agency (U.S. EPA) maximum contaminant level (MCL) concentration of 10 micrograms per liter (ug/L) occur in numerous aquifers around the United States. One such aquifer is the Cen...

  10. Evaluation of Safety Education (Choctaw Agency School System, Philadelphia, Mississippi, February 1976). Research and Evaluation Report Series No. 40.01.

    ERIC Educational Resources Information Center

    Lowry, Carlee S.

    Questionnaire responses derived from a sample of 202 Choctaw students (grades 4, 6, 8, and 10) in attendance at the Bureau of Indian Affairs' Choctaw Agency Schools (Philadelphia, Mississippi) were utilized to evaluate the Choctaw Safety Education Program. In addition, parents, teachers, janitors, bus drivers, council members, and principals were…

  11. Site Visitation: Choctaw Language Teaching Program, Mississippi Choctaw Agency Schools, Philadelphia, Mississippi, August 7, 8, 1975. A Report. Research and Evaluation Report Series No. 23-C.

    ERIC Educational Resources Information Center

    Leitka, Eugene

    A site visitation of the Bilingual Program at Choctaw Agency indicated that the program would be implemented during the 1975-76 school year. The program will involve teaching the reading and writing of the Choctaw language combined with teaching English as a Second Language (ESL). A structured approach will be used in teaching ESL to the Choctaw…

  12. Tourism SMEs and Organizational Learning in a Competitive Environment: A Longitudinal Research on Organizational Learning in Travel and Tourism Agencies Located in the City of Ahvaz, Iran

    ERIC Educational Resources Information Center

    Khoshkhoo, Mohammad Hossein Imani; Nadalipour, Zahra

    2016-01-01

    Purpose: This paper aims to study the impact of increasing number of competitors on the organisational learning (OL) in tourism small and medium-sized enterprises. The focus of this study is the tourism and travel agencies (TTAs) of the City of Ahvaz where the OL was studied within TTAs insofar as increasing the number of competitors is concerned.…

  13. RESTORATION PLUS: A COLLABORATIVE ENVIRONMENTAL PROTECTION AGENCY RESEARCH PROGRAM TO DEVELOP AND EVALUATE ECOSYSTEM RESTORATION AND MANAGEMENT OPTIONS TO ACHIEVE ECOLOGICALLY AND ECONOMICALLY SUSTAINABLE SOLUTIONS

    EPA Science Inventory

    The U.S. Environmental Protection Agency (U.S. EPA) is evaluating ecosystem restoration and management techniques to ensure they create sustainable solutions for degraded watersheds. The ORD/NRMRL initiated the Restoration Plus (RePlus) program in 2002, which emphasizes collabora...

  14. CALL: A Triangle of Triangles

    ERIC Educational Resources Information Center

    Montoro, Carlos; Hampel, Regine

    2012-01-01

    Institutional investment in technology and infrastructure for the provision of new online and self-access language learning opportunities is not always accompanied by the necessary changes in the practices of learners, practitioners and managers in higher education (Wertsch, 2002). As a result, feelings of frustration, helplessness and confusion…

  15. [The probability of developing brain tumours among users of cellular telephones (scientific information to the decision of the International Agency for Research on Cancer (IARC) announced on May 31, 2011)].

    PubMed

    Grigor'ev, Iu G

    2011-01-01

    The WHO's International Agency for Research on Cancer (IARC) has made May 31 2011 PRESS RELEASE No 208 which classifies radiofrequency electromagnetic fields as possibly carcinogenic to humans (Group 2B). The decision is based on an increased risk of glioma, i.e., a malignant type of brain cancer associated with the wireless phone use. This paper reports the analysis of the long-term research on the issue in question that had been carried out in many countries around the world before the decision was made.

  16. Comparison of effects of different screw materials in the triangle fixation of femoral neck fractures.

    PubMed

    Gok, Kadir; Inal, Sermet; Gok, Arif; Gulbandilar, Eyyup

    2017-05-01

    In this study, biomechanical behaviors of three different screw materials (stainless steel, titanium and cobalt-chromium) have analyzed to fix with triangle fixation under axial loading in femoral neck fracture and which material is best has been investigated. Point cloud obtained after scanning the human femoral model with the three dimensional (3D) scanner and this point cloud has been converted to 3D femoral model by Geomagic Studio software. Femoral neck fracture was modeled by SolidWorks software for only triangle configuration and computer-aided numerical analyses of three different materials have been carried out by AnsysWorkbench finite element analysis (FEA) software. The loading, boundary conditions and material properties have prepared for FEA and Von-Misses stress values on upper and lower proximity of the femur and screws have been calculated. At the end of numerical analyses, the best advantageous screw material has calculated as titanium because it creates minimum stress at the upper and lower proximity of the fracture line.

  17. The semiosis of the Anthropocene geological era. Reflections between geoethics and semiotics starting from Peirce's triangle

    NASA Astrophysics Data System (ADS)

    De Pascale, Francesco; Dattilo, Valeria

    2016-04-01

    This paper presents the first formulation of a theoretical proposal which aims to reconcile, or better, to work together, two different approaches: geoethics and the semiotic tradition of Peirce, on the basis of some important affinities. We will refer to geoethics, discipline that deals with the ethical, social and cultural implications of geological and geographical practice, at the intersection of Geoscience, Geography, Philosophy, Sociology and Economy. The proposal of this work is to try to explain the new processes of the Anthropocene era through geoethics and semiotics, using as a "translator mechanism" one of the key notions of Peirce semiotics: the semiotic triangle. On the one hand, we employ the geoethical paradigm as a possible interpretative framework for such processes (in other words, we identify in the geoethical paradigm a significant exemplification of hippocratic type, according to some scientists); on the other hand, we use the triangle "geology / geography - planet illness - society", as a metaphor of the principles and the processes inherent Anthropocene era, able to return them in a particularly random way through the semiotic triangulation of Peirce.

  18. Mesopause dynamics from the scandinavian triangle ofradars within the PSMOS-DATAR Project

    NASA Astrophysics Data System (ADS)

    Manson, A.; Meek, C.; Hall, C.; Nozawa, S.; Mitchell, N.; Pancheva, D.; Singer, W.; Hoffmann, P.

    2004-02-01

    . The ``Scandinavian Triangle" is a unique trio of radars within the DATAR Project (Dynamics and Temperatures from the Arctic MLT (60-97km) region): Andenes MF radar (N, E); Tromsø MF radar (N, E) and Esrange ``Meteor" radar (N, E). The radar-spacings range from 125-270km, making it unique for studies of wind variability associated with small-scale waves, comparisons of large-scale waves measured over small spacings, and for comparisons of winds from different radar systems. As such it complements results from arrays having spacings of 25km and 500km that have been located near Saskatoon. Correlation analysis is used to demonstrate a speed bias (MF smaller than the Meteor) between the radar types, which varies with season and altitude. Annual climatologies for the year 2000 of mean winds, solar tides, planetary and gravity waves are presented, and show indications of significant spatial variability across the Triangle and of differences in wave characteristics from middle latitudes.

  19. Disruption of the 'disease triangle' by chemical and physical environmental change.

    PubMed

    Chappelka, A H; Grulke, N E

    2016-01-01

    The physical and chemical environment of the Earth has changed rapidly over the last 100 years and is predicted to continue to change into the foreseeable future. One of the main concerns with potential alterations in climate is the propensity for increases in the magnitude and frequency of extremes to occur. Even though precipitation is predicted to increase in some locations, in others precipitation is expected to decrease and evapotranspiration increase with air temperature, resulting in exacerbated drought in the future. Chemical [ozone (O3 ) and other air contaminants] and subsequent physical alterations in the environment will have a profound effect on the 'disease triangle' (a favourable environment, a susceptible host and a virulent pathogen) and should be included in any analysis of biological response to climate change. The chemical and physical environment affects plant health and alters plant susceptibility to insect and pathogen attack through increased frequency, duration and severity of drought and reduction in host vigour. The potential effects of climate change and O3 on tree diseases with emphasis on the western United States are discussed. We describe a generalised modelling approach to incorporate the complexities of the 'disease triangle' into dynamic vegetation models.

  20. 40 CFR 36.645 - Federal agency or agency.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Federal agency or agency. Federal agency or agency means any United States executive department, military... executive branch (including the Executive Office of the President), or any independent regulatory agency....

  1. Methotrexate-associated lymphoproliferative disorder arising in the retromolar triangle and lung of a patient with rheumatoid arthritis.

    PubMed

    Kudoh, Masanori; Harada, Hiroyuki; Matsumoto, Koshi; Sato, Yuriko; Omura, Ken; Ishii, Yoshimasa

    2014-10-01

    We report an extremely rare case of massive methotrexate-associated lymphoproliferative disorder (MTX-LPD) arising in the retromolar triangle and lung of a patient with rheumatoid arthritis. The patient was a 75-year-old woman who was referred to our department because of severe pain associated with a unilateral ulcer on the left retromolar triangle. The tumor had an extranodal location in the retromolar triangle and in the right lung. A clinicopathologic examination found a lymphocytic infiltrate with increasingly atypical histopathologic features. Atypical large cells were strongly positive in Epstein-Barr virus-encoded small RNA in situ hybridization and in staining with CD20 antibodies. MTX-LPD was diagnosed based on the medical history and histopathologic results. The lesion responded well to withdrawal of MTX followed by R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone) chemotherapy. There have been no signs of recurrence for 4 years since withdrawal of MTX.

  2. GEOGRAPHY AND ENVIRONMENTAL PROTECTION AGENCY

    EPA Science Inventory

    The US Environmental Protection Agency helps state and local governments protect the environment by encouraging good environmental management and by regulating human activities to ensure clean air and water. At the Corvallis research laboratory for the EPA, we improve the ways t...

  3. Human tissue monitoring and specimen banking: opportunities for exposure assessment, risk assessment, and epidemiologic research.

    PubMed Central

    Lee, L W; Griffith, J; Zenick, H; Hulka, B S

    1995-01-01

    A symposium on Human Tissue Monitoring and Specimen Banking: Opportunities for Exposure Assessment, Risk Assessment, and Epidemiologic Research was held from 30 March to 1 April 1993 in Research Triangle Park, North Carolina. There were 117 registered participants from 18 states and 5 foreign countries. The first 2 days featured 21 invited speakers from the U.S. Environmental Protection Agency, the Centers for Disease Control and Prevention, the National Institute of Environmental Health Sciences, various other government agencies, and universities in the United States, Canada, Germany, and Norway. The speakers provided a state-of-the-art overview of human exposure assessment techniques (especially applications of biological markers) and their relevance to human tissue specimen banking. Issues relevant to large-scale specimen banking were discussed, including program design, sample design, data collection, tissue collection, and ethical ramifications. The final group of presentations concerned practical experiences of major specimen banking and human tissue monitoring programs in the United States and Europe. The symposium addressed the utility and research opportunities afforded by specimen banking programs for future research needs in the areas of human exposure assessment, risk assessment, and environmental epidemiology. The third day of the symposium consisted of a small workshop convened to discuss and develop recommendations to the U.S. Environmental Protection Agency regarding applications and utility of large-scale specimen banking, biological monitoring, and biological markers for risk assessment activities. PMID:7635108

  4. Equivalence of linear stabilities of elliptic triangle solutions of the planar charged and classical three-body problems

    NASA Astrophysics Data System (ADS)

    Zhou, Qinglong; Long, Yiming

    2015-06-01

    In this paper, we prove that the linearized system of elliptic triangle homographic solution of planar charged three-body problem can be transformed to that of the elliptic equilateral triangle solution of the planar classical three-body problem. Consequently, the results of Martínez, Samà and Simó (2006) [15] and results of Hu, Long and Sun (2014) [6] can be applied to these solutions of the charged three-body problem to get their linear stability.

  5. Listing triangles in expected linear time on a class of power law graphs.

    SciTech Connect

    Nordman, Daniel J.; Wilson, Alyson G.; Phillips, Cynthia Ann; Berry, Jonathan W.

    2010-07-01

    Enumerating triangles (3-cycles) in graphs is a kernel operation for social network analysis. For example, many community detection methods depend upon finding common neighbors of two related entities. We consider Cohen's simple and elegant solution for listing triangles: give each node a 'bucket.' Place each edge into the bucket of its endpoint of lowest degree, breaking ties consistently. Each node then checks each pair of edges in its bucket, testing for the adjacency that would complete that triangle. Cohen presents an informal argument that his algorithm should run well on real graphs. We formalize this argument by providing an analysis for the expected running time on a class of random graphs, including power law graphs. We consider a rigorously defined method for generating a random simple graph, the erased configuration model (ECM). In the ECM each node draws a degree independently from a marginal degree distribution, endpoints pair randomly, and we erase self loops and multiedges. If the marginal degree distribution has a finite second moment, it follows immediately that Cohen's algorithm runs in expected linear time. Furthermore, it can still run in expected linear time even when the degree distribution has such a heavy tail that the second moment is not finite. We prove that Cohen's algorithm runs in expected linear time when the marginal degree distribution has finite 4/3 moment and no vertex has degree larger than {radical}n. In fact we give the precise asymptotic value of the expected number of edge pairs per bucket. A finite 4/3 moment is required; if it is unbounded, then so is the number of pairs. The marginal degree distribution of a power law graph has bounded 4/3 moment when its exponent {alpha} is more than 7/3. Thus for this class of power law graphs, with degree at most {radical}n, Cohen's algorithm runs in expected linear time. This is precisely the value of {alpha} for which the clustering coefficient tends to zero asymptotically, and it is

  6. The CKM matrix and the unitarity triangle. Proceedings, workshop, Geneva, Switzerland, February 13-16, 2002

    SciTech Connect

    M. Battaglia et al.

    2004-04-02

    This report contains the results of the Workshop on the CKM Unitarity Triangle that was held at CERN on 13-16 February 2002. There had been several Workshops on B physics that concentrated on studies at e{sup +}e{sup -} machines, at the Tevatron, or at LHC separately. Here we brought together experts of different fields, both theorists and experimentalists, to study the determination of the CKM matrix from all the available data of K, D, and B physics. The analysis of LEP data for B physics is reaching its end, and one of the goals of the Workshop was to underline the results that have been achieved at LEP, SLC, and CESR. Another goal was to prepare for the transfer of responsibility for averaging B physics properties, that has developed within the LEP community, to the present main actors of these studies, from the B factory and the Tevatron experiments. The optimal way to combine the various experimental and theoretical inputs and to fit for the apex of the Unitarity Triangle has been a contentious issue. A further goal of the Workshop was to bring together the proponents of different fitting strategies, and to compare their approaches when applied to the same inputs. Since lattice QCD plays a very important role in the determination of the non-perturbative parameters needed to constrain the CKM unitarity triangle, the first Workshop was seen as an excellent opportunity to bring together lattice theorists with the aim of establishing a working group to compile averages for phenomenologically relevant quantities. Representatives from lattice collaborations around the world were invited to attend a meeting during the Workshop. A consensus was reached to set up three test working groups, collectively known as the ''CKM Lattice Working Group'', to review a number of well-studied quantities: quark masses, the kaon B-parameter, and the matrix elements relevant for neutral B-meson mixing. This report is organized as a coherent document with chapters covering the domains

  7. Guaranty Agency Questionnaire.

    ERIC Educational Resources Information Center

    Leifman, Steven

    The extent to which guaranty agencies, lenders, and state secondary markets impose restrictions on Guaranteed Student Loan (GSL) borrowing that go beyond federal regulations was assessed through a survey of 53 guaranty agencies. Seventeen of the agencies imposed restrictions on GSLs that go beyond federal regulations, including not loaning to…

  8. Attachment within the Agency/Communion Paradigm.

    ERIC Educational Resources Information Center

    Sheldon-Keller, Adrienne; West, Malcolm

    This paper synthesizes a variety of perspectives, with an emphasis on attachment theory, on the agency/communion polarity as first defined by David Bakan (1966). The question researchers sought to answer was whether or not agency/communion is best approached as a polarity--opposite and opposing forces, forces in the personality which have often…

  9. Developing Multi-Agency Leadership in Education

    ERIC Educational Resources Information Center

    Close, Paul

    2012-01-01

    This article contributes to the growing debate around how we understand and develop multi-agency leadership in children and young people's services. Bringing together a range of inter-disciplinary research, it presents a framework for multi-agency leadership development, which, it argues, is well theorised, multi-level and versed in key field…

  10. Directory of Adult Education Agencies in Egypt.

    ERIC Educational Resources Information Center

    El-Bashary, Ahmed, Comp.

    The directory of Adult Education Agencies in Egypt is a listing of six different types of organizations: national bodies and central agencies; teachers' training institutes and research institutions; adult education institutions (governmental); adult education institutions (non-governmental); central libraries and documentation centers; and…

  11. Laparoscopic Mobilization of an Omental Flap for a Chronic Scarpa Triangle Suppuration after Vascular Graft Infection.

    PubMed

    Boţianu, Pvh; Boţianu, A M; Chirtes, R; Bacarea, A

    2015-01-01

    We report a case of laparoscopic mobilization of an omental flap (left epiploic vessels) which was used to solve a Scarpa triangle chronic suppuration after a vascular prosthesis infection (coverage of bovine pericardium patch angioplasty for closure of the defect resulting after the excision of the vascular graft). The procedure lasted 90 minutes and was performed using 3 trocars and standard laparoscopy instruments. The immediate postoperative course was favourable, with regain of transit after 12 hours and healing of the wound; the patient died 9 months later due to some complications that occurred on the contralateral leg. In cases with a favourable anatomy, the laparoscopic mobilization of the omentum is extremely easy, being associated with a quick recovery and a reduction of the morbidity.

  12. The star-triangle relation, lens partition function, and hypergeometric sum/integrals

    NASA Astrophysics Data System (ADS)

    Gahramanov, Ilmar; Kels, Andrew P.

    2017-02-01

    The aim of the present paper is to consider the hyperbolic limit of an elliptic hypergeometric sum/integral identity, and associated lattice model of statistical mechanics previously obtained by the second author. The hyperbolic sum/integral identity obtained from this limit, has two important physical applications in the context of the so-called gauge/YBE correspondence. For statistical mechanics, this identity is equivalent to a new solution of the star-triangle relation form of the Yang-Baxter equation, that directly generalises the Faddeev-Volkov models to the case of discrete and continuous spin variables. On the gauge theory side, this identity represents the duality of lens ({S}_b^3/{Z}_r) partition functions, for certain three-dimensional N=2 supersymmetric gauge theories.

  13. Three-dimensional object recognition using similar triangles and decision trees

    NASA Technical Reports Server (NTRS)

    Spirkovska, Lilly

    1993-01-01

    A system, TRIDEC, that is capable of distinguishing between a set of objects despite changes in the objects' positions in the input field, their size, or their rotational orientation in 3D space is described. TRIDEC combines very simple yet effective features with the classification capabilities of inductive decision tree methods. The feature vector is a list of all similar triangles defined by connecting all combinations of three pixels in a coarse coded 127 x 127 pixel input field. The classification is accomplished by building a decision tree using the information provided from a limited number of translated, scaled, and rotated samples. Simulation results are presented which show that TRIDEC achieves 94 percent recognition accuracy in the 2D invariant object recognition domain and 98 percent recognition accuracy in the 3D invariant object recognition domain after training on only a small sample of transformed views of the objects.

  14. Using transactional analysis to improve clinical and educational supervision: the Drama and Winner's triangles.

    PubMed

    McKimm, Judy; Forrest, Kirsty

    2010-05-01

    The supervisor-trainee relationship is fundamental in ensuring the best continuing education for all trainees. One of the key skills of supervision is being able to communicate effectively; however, this is sometimes difficult. In this article we explore how two transactional analysis models, the Drama and Winner's triangles, can help supervisors work and communicate more effectively with trainees. All supervisors will have had a 'heartsink moment' before meeting a known trainee. The models can be used to explain these situations and what exactly is happening to the communication. The models provide methods of breaking free from these frustrating encounters and moving on with the relationship with your trainee. The models also help us understand the ways in which we can easily be pulled into games and offer insight into our own behaviours and relationships, not only with trainees, but also with patients, carers and colleagues. Real life scenarios are used throughout to explain the models.

  15. Mastoid triangle for sex determination in adult Nigerian population: a validation study.

    PubMed

    Jaja, Blessing N R; Ajua, Christiana O; Didia, Blessing C

    2013-11-01

    In the quest for a simple, reliable technique to estimate the sex of human remains several novel metric skeletal indices have been reported. Only a few have been examined for utility in populations different from those in which they were developed. In this study, the mastoid process was evaluated for sex determination using 102 lateral cephalograms of a Nigerian sample of known age and sex. The asterion-mastoidale distance and mastoid triangular area were sexually dimorphic with mean values higher in males compared with females (p = 0.02). On analysis of the discriminant function, overall accuracy for sex classification was 55%. On cross-validation, the triangular area accurately identified 80% of females and 48% of males. The asterion-mastoidale distance was slightly more accurate at sexing the sample. The practical utility of the mastoid triangle area technique to differentiate sex in Nigerian populations is not supported by the results of this study.

  16. Pollution control enhanced spruce growth in the "Black Triangle" near the Czech-Polish border.

    PubMed

    Kolář, Tomáš; Čermák, Petr; Oulehle, Filip; Trnka, Miroslav; Štěpánek, Petr; Cudlín, Pavel; Hruška, Jakub; Büntgen, Ulf; Rybníček, Michal

    2015-12-15

    Norway spruce (Picea abies (L.) Karst.) stands in certain areas of Central Europe have experienced substantial dieback since the 1970s. Understanding the reasons for this decline and reexamining the response of forests to acid deposition reduction remains challenging because of a lack of long and well-replicated tree-ring width chronologies. Here, spruce from a subalpine area heavily affected by acid deposition (from both sulfur and nitrogen compounds) is evaluated. Tree-ring width measurements from 98 trees between 1000 and 1350m above sea level (a.s.l.) reflected significant May-July temperature signals. Since the 1970s, acid deposition has reduced the growth-climate relationship. Efficient pollution control together with a warmer but not drier climate most likely caused the increased growth of spruce stands in this region, the so-called "Black Triangle," in the 1990s.

  17. Analytic solutions for links and triangles distributions in finite Barabási-Albert networks

    NASA Astrophysics Data System (ADS)

    Ferreira, Ricardo M.; de Almeida, Rita M. C.; Brunnet, Leonardo G.

    2017-01-01

    Barabási-Albert model describes many different natural networks, often yielding sensible explanations to the subjacent dynamics. However, finite size effects may prevent from discerning among different underlying physical mechanisms and from determining whether a particular finite system is driven by Barabási-Albert dynamics. Here we propose master equations for the evolution of the degrees, links and triangles distributions, solve them both analytically and by numerical iteration, and compare with numerical simulations. The analytic solutions for all these distributions predict the network evolution for systems as small as 100 nodes. The analytic method we developed is applicable for other classes of networks, representing a powerful tool to investigate the evolution of natural networks.

  18. Role of a triangle singularity in the γ p →K+Λ (1405 ) reaction

    NASA Astrophysics Data System (ADS)

    Wang, En; Xie, Ju-Jun; Liang, Wei-Hong; Guo, Feng-Kun; Oset, Eulogio

    2017-01-01

    We show the effects of a triangle singularity mechanism for the γ p →K+Λ (1405 ) reaction. The mechanism has a N* resonance around 2030 MeV, which decays into K*Σ . The K* decays to K+π , and the π Σ merge to form the Λ (1405 ) . This mechanism produces a peak around √{s }=2110 MeV, and has its largest contribution around cos θ =0 . The addition of this mechanism to other conventional ones leads to a good reproduction of d σ /d cos θ and the integrated cross section around this energy, providing a solution to a problem encountered in previous theoretical models.

  19. Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet.

    PubMed

    Yakata, Satoshi; Tanaka, Terumitsu; Kiseki, Kohei; Matsuyama, Kimihide; Kimura, Takashi

    2013-12-20

    A magnetic vortex structure stabilized in a micron or nano-sized ferromagnetic disk has a strong potential as a unit cell for spin-based nano-electronic devices because of negligible magnetostatic interaction and superior thermal stability. Moreover, various intriguing fundamental physics such as bloch point reversal and symmetry breaking can be induced in the dynamical behaviors in the magnetic vortex. The static and dynamic properties of the magnetic vortex can be tuned by the disk dimension and/or the separation distance between the disks. However, to realize these modifications, the preparations of other devices with different sample geometries are required. Here, we experimentally demonstrate that, in a regular-triangle Permalloy dot, the dynamic properties of a magnetic vortex are greatly modified by the application of the in-plane magnetic field. The obtained wide range tunability based on the asymmetric position dependence of the core potential provides attractive performances in the microwave spintronic devices.

  20. An unusual triangle zone in the external northern Alpine foreland (Switzerland): Structural inheritance, kinematics and implications for the development of the adjacent Jura fold-and-thrust belt

    NASA Astrophysics Data System (ADS)

    Malz, Alexander; Madritsch, Herfried; Meier, Beat; Kley, Jonas

    2016-02-01

    Triangle zones represent typical structural elements of thin-skinned foreland fold-and-thrust belts. Here, we report the results of an in-depth structural analysis of a rather unusual triangle zone at the front of the easternmost Jura fold-and-thrust belt in the otherwise only very mildly deformed Alpine foreland of Northern Switzerland. The investigation is based on the interpretation of recently reprocessed and depth-migrated 2D reflection seismic sections. Classical bed-length and area cross-section balancing methods were used to validate the interpretation and unravel the tectonic evolution of the triangle zone. According to our interpretation the analyzed triangle zone formed along the Baden-Irchel-Herdern-Lineament (BIH-Lineament), a regional Paleozoic normal fault that shows evidence of Cenozoic reactivation. The triangle zone is composed of one major foreland-directed thrust rooting in Triassic evaporites and a back-thrust splaying from it in the Middle Jurassic Opalinus Clay, pointing to the importance of secondary detachments. Steeply dipping secondary reverse faults next to the triangle zone suggest reactivation of pre-existing normal faults. The formation of the thrust triangle is considered to relate to thin-skinned foreland deformation in Late Miocene time. Strain estimations of the thrust triangle along-strike show a laterally very uniform amount of shortening, which is in contrast to the southward adjacent Jura fold-and-thrust belt. We interpret this constant shortening to represent the maximum contractional strain attainable by the specific geometry of the BIH triangle zone. At this point, the complex structure became mechanically ineffective and further shortening led to the formation of new contractional structures in its hinterland. This kinematic hypothesis suggests an early-stage formation of the BIH triangle zone followed by back stepping of the deformation front. As such, it challenges the classical view of a purely forward-breaking sequence