NASA Astrophysics Data System (ADS)
Syha, M.; Rheinheimer, W.; Loedermann, B.; Graff, A.; Trenkle, A.; Baeurer, M.; Weygand, D.; Ludwig, W.; Gumbsch, P.
The microstructural evolution of polycrystalline strontium titanate was investigated in three dimensions (3D) using X-ray diffraction contrast tomography (DCT) before and after ex-situ annealing at 1600°C. Post-annealing, the specimen was additionally subjected to phase contrast tomography (PCT) in order to finely resolve the porosities. The resulting microstructure reconstructions were studied with special emphasis on morphology and interface orientation during microstructure evolution. Subsequently, cross-sections of the specimen were studied using electron backscatter diffraction (EBSD). Corresponding cross-sections through the 3D reconstruction were identified and the quality of the reconstruction is validated with special emphasis on the spatial resolution at the grain boundaries, the size and location of pores contained in the material and the accuracy of the orientation determination.
New Frontiers in Language Evolution and Development.
Oller, D Kimbrough; Dale, Rick; Griebel, Ulrike
2016-04-01
This article introduces the Special Issue and its focus on research in language evolution with emphasis on theory as well as computational and robotic modeling. A key theme is based on the growth of evolutionary developmental biology or evo-devo. The Special Issue consists of 13 articles organized in two sections: A) Theoretical foundations and B) Modeling and simulation studies. All the papers are interdisciplinary in nature, encompassing work in biological and linguistic foundations for the study of language evolution as well as a variety of computational and robotic modeling efforts shedding light on how language may be developed and may have evolved. Copyright © 2016 Cognitive Science Society, Inc.
Global effects of interactions on galaxy evolution
NASA Technical Reports Server (NTRS)
Kennicutt, Robert C., Jr.
1990-01-01
Recent observations of the evolutionary properties of paired and interacting galaxies are reviewed, with special emphasis on their global emission properties and star formation rates. Data at several wavelengths provide strong confirmation of the hypothesis, proposed originally by Larson and Tinsley, that interactions trigger global bursts of star formation in galaxies. The nature and properties of the starbursts, and their overall role in galactic evolution are also discussed.
TRANSCOM: A Look at the Process of Organizational Evolution
1992-04-10
agency. TRANSCOM: A LOOK AT THE PROCESS OF ORGANIZATIONAL EVOLUTION AN INDIVIDUAL STUDY PROJECT Accesion For NTIS CRA&I by DTIC TAB Unannounced Colonel...the air side of the business. MAC was seen as controlling a specialized, higher cost mode that for sustainment shipments was not normally accessible...Military Sealift Command. The emphasis was to make things happen and to sustain the initiative for more control and authority to be vested in the
77 FR 12605 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-03-01
... Special Emphasis Panel; Studies of variation, evolution, genomics with statistical and molecular Methods... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health Center for Scientific Review; Notice of Closed Meetings Pursuant to section 10(d) of the Federal Advisory Committee Act, as amended (5...
75 FR 28260 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-05-20
... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings Pursuant to section 10(d) of the Federal... Special Emphasis Panel, Emergence and Evolution of Coronavirus Pathogens. Date: June 15, 2010. Time: 1 p.m...
The Undergraduate Biomechanics Experience at Iowa State University.
ERIC Educational Resources Information Center
Francis, Peter R.
This paper discusses the objectives of a program in biomechanics--the analysis of sports skills and movement--and the evolution of the biomechanics program at Iowa State University. The primary objective of such a course is to provide the student with the basic tools necessary for adequate analysis of human movement, with special emphasis upon…
Design, analysis, fabrication and test of the Space Shuttle solid rocket booster motor case
NASA Technical Reports Server (NTRS)
Kapp, J. R.
1978-01-01
The motor case used in the solid propellant booster for the Space Shuttle is unique in many respects, most of which are indigenous to size and special design requirements. The evolution of the case design from initial requirements to finished product is discussed, with increased emphasis of reuse capability, special design features, fracture mechanics and corrosion control. Case fabrication history and the resulting procedure are briefly reviewed with respect to material development, processing techniques and special problem areas. Case assembly, behavior and performance during the DM-1 static firing are reviewed, with appropriate comments and conclusions.
Health Policy and the Health of the Public.
ERIC Educational Resources Information Center
Lee, Philip R.
1984-01-01
Examines the evolution of health policies in the United States and their possible impact on public health. Reviews four periods of U.S. history (1776-1861, 1861-1931, 1931-1981, and 1981 to the present) with special emphasis on the significant increase in the federal role and the current attempts to reduce the federal role. (SK)
POROUS ALUMINOPHOSPHATES :From Molecular Sieves to Designed Acid Catalysts
NASA Astrophysics Data System (ADS)
Pastore, H. O.; Coluccia, S.; Marchese, L.
2005-08-01
This review covers the synthesis, characterization, and physico-chemical properties of microporous and mesoporous aluminophosphates and silicoaluminophosphates molecular sieves. Particular emphasis is given to the materials that have found applications as acid catalysts. We consider the evolution of the synthesis procedures from the first discoveries to the current methodologies and give perspectives for new possible synthesis strategies. Emphasis is given to the use of specially prepared precursors/reactants designed for the use as molecular sieves. Experimental (especially MAS-NMR and FTIR spectroscopy) and theoretical approaches to the description of the Si insertion into the ALPO framework and to the acidic properties of SAPOs and MeAPSOs materials are discussed.
Analytical solutions of Landau (1+1)-dimensional hydrodynamics
Wong, Cheuk-Yin; Sen, Abhisek; Gerhard, Jochen; ...
2014-12-17
To help guide our intuition, summarize important features, and point out essential elements, we review the analytical solutions of Landau (1+1)-dimensional hydrodynamics and exhibit the full evolution of the dynamics from the very beginning to subsequent times. Special emphasis is placed on the matching and the interplay between the Khalatnikov solution and the Riemann simple wave solution at the earliest times and in the edge regions at later times.
Time evolution of Wikipedia network ranking
NASA Astrophysics Data System (ADS)
Eom, Young-Ho; Frahm, Klaus M.; Benczúr, András; Shepelyansky, Dima L.
2013-12-01
We study the time evolution of ranking and spectral properties of the Google matrix of English Wikipedia hyperlink network during years 2003-2011. The statistical properties of ranking of Wikipedia articles via PageRank and CheiRank probabilities, as well as the matrix spectrum, are shown to be stabilized for 2007-2011. A special emphasis is done on ranking of Wikipedia personalities and universities. We show that PageRank selection is dominated by politicians while 2DRank, which combines PageRank and CheiRank, gives more accent on personalities of arts. The Wikipedia PageRank of universities recovers 80% of top universities of Shanghai ranking during the considered time period.
The dispersal of planet-forming discs: theory confronts observations.
Ercolano, Barbara; Pascucci, Ilaria
2017-04-01
Discs of gas and dust around million-year-old stars are a by-product of the star formation process and provide the raw material to form planets. Hence, their evolution and dispersal directly impact what type of planets can form and affect the final architecture of planetary systems. Here, we review empirical constraints on disc evolution and dispersal with special emphasis on transition discs, a subset of discs that appear to be caught in the act of clearing out planet-forming material. Along with observations, we summarize theoretical models that build our physical understanding of how discs evolve and disperse and discuss their significance in the context of the formation and evolution of planetary systems. By confronting theoretical predictions with observations, we also identify the most promising areas for future progress.
The dispersal of planet-forming discs: theory confronts observations
Pascucci, Ilaria
2017-01-01
Discs of gas and dust around million-year-old stars are a by-product of the star formation process and provide the raw material to form planets. Hence, their evolution and dispersal directly impact what type of planets can form and affect the final architecture of planetary systems. Here, we review empirical constraints on disc evolution and dispersal with special emphasis on transition discs, a subset of discs that appear to be caught in the act of clearing out planet-forming material. Along with observations, we summarize theoretical models that build our physical understanding of how discs evolve and disperse and discuss their significance in the context of the formation and evolution of planetary systems. By confronting theoretical predictions with observations, we also identify the most promising areas for future progress. PMID:28484640
ERIC Educational Resources Information Center
van Garderen, Delinda; Scheuermann, Amy; Poch, Apryl; Murray, Mary M.
2018-01-01
The use of visual representations (VRs) in mathematics is a strongly recommended practice in special education. Although recommended, little is known about special educators' knowledge of and instructional emphasis about VRs. Therefore, in this study, the authors examined special educators' own knowledge of and their instructional emphasis with…
Tessmer-Tuck, Jennifer A; Rayburn, William F
2015-09-01
Obstetrician-gynecologists (OB-GYNs) are the fourth largest group of physicians and the only specialty dedicated solely to women's health care. The specialty is unique in providing 24-hour inpatient coverage, surgical care and ambulatory preventive health care. This article identifies and reviews changes in the OB-GYN workforce, including more female OB-GYNs, an increasing emphasis on work-life balance, more sub-specialization, larger group practices with more employed physicians and, finally, an emphasis on quality and performance improvement. It then describes the evolution of the OB-GYN hospitalist movement to date and the role of OB-GYN hospitalists in the future with regard to these workforce changes. Copyright © 2015 Elsevier Inc. All rights reserved.
NASA Technical Reports Server (NTRS)
1990-01-01
This report contains the individual presentations delivered at the Space Station Evolution Symposium in League City, Texas on February 6, 7, 8, 1990. Personnel responsible for Advanced Systems Studies and Advanced Development within the Space Station Freedom Program reported on the results of their work to date. Systems Studies presentations focused on identifying the baseline design provisions (hooks and scars) necessary to enable evolution of the facility to support changing space policy and anticipated user needs. Also emphasized were evolution configuration and operations concepts including on-orbit processing of space transfer vehicles. Advanced Development task managers discussed transitioning advanced technologies to the baseline program, including those near-term technologies which will enhance the safety and productivity of the crew and the reliability of station systems. Special emphasis was placed on applying advanced automation technology to ground and flight systems.
78 FR 63207 - Special Emphasis Panel; Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-10-23
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Agency for Healthcare Research and Quality Special Emphasis Panel; Meeting AGENCY: Agency for Healthcare Research and Quality, HHS. ACTION: Notice. SUMMARY...), announcement is made of an Agency for Healthcare Research and Quality (AHRQ) Special Emphasis Panel (SEP...
NASA Technical Reports Server (NTRS)
1990-01-01
This report contains the individual presentations delivered at the Space Station Evolution Symposium in League City, Texas on February 6, 7, 8, 1990. Personnel responsible for Advanced Systems Studies and Advanced Development within the Space Station Freedom program reported on the results of their work to date. Systems Studies presentations focused on identifying the baseline design provisions (hooks and scars) necessary to enable evolution of the facility to support changing space policy and anticipated user needs. Also emphasized were evolution configuration and operations concepts including on-orbit processing of space transfer vehicles. Advanced Development task managers discussed transitioning advanced technologies to the baseline program, including those near-term technologies which will enhance the safety and productivity of the crew and the reliability of station systems. Special emphasis was placed on applying advanced automation technology to ground and flight systems. This publication consists of two volumes. Volume 1 contains the results of the advanced system studies with the emphasis on reference evolution configurations, system design requirements and accommodations, and long-range technology projections. Volume 2 reports on advanced development tasks within the Transition Definition Program. Products of these tasks include: engineering fidelity demonstrations and evaluations on Station development testbeds and Shuttle-based flight experiments; detailed requirements and performance specifications which address advanced technology implementation issues; and mature applications and the tools required for the development, implementation, and support of advanced technology within the Space Station Freedom Program.
A comparison of biological and cultural evolution.
Portin, Petter
2015-03-01
This review begins with a definition of biological evolution and a description of its general principles. This is followed by a presentation of the biological basis of culture, specifically the concept of social selection. Further, conditions for cultural evolution are proposed, including a suggestion for language being the cultural replicator corresponding to the concept of the gene in biological evolution. Principles of cultural evolution are put forward and compared to the principles of biological evolution. Special emphasis is laid on the principle of selection in cultural evolution, including presentation of the concept of cultural fitness. The importance of language as a necessary condition for cultural evolution is stressed. Subsequently, prime differences between biological and cultural evolution are presented, followed by a discussion on interaction of our genome and our culture. The review aims at contributing to the present discussion concerning the modern development of the general theory of evolution, for example by giving a tentative formulation of the necessary and sufficient conditions for cultural evolution, and proposing that human creativity and mind reading or theory of mind are motors specific for it. The paper ends with the notion of the still ongoing coevolution of genes and culture.
78 FR 32670 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-05-31
... Scientific Review Special Emphasis Panel; Fellowships: Brain Disorders, Language, Communication, and Related...: Center for Scientific Review Special Emphasis Panel; PAR Panel: Brain Disorders in the Developing World... Review Special Emphasis Panel; Small Business: Health Informatics. Date: June 28, 2013. Time: 8:30 a.m...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Fouch, T.D.; Wandrey, C.J.; Pitman, J.K.
1992-02-01
This report characterizes Upper Cretaceous Campanian and Maastrichtian, and lower Tertiary gas-bearing rocks in the Uinta Basin with special emphasis on those units that contain gas in reservoirs that have been described as being tight. The report was prepared for the USDOE whose Western Tight Gas Sandstone Program cofunded much of this research in conjunction with the US Geological Survey's Evolution of Sedimentary Basins, and Onshore Oil and Gas Programs. (VC)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Fouch, T.D.; Wandrey, C.J.; Pitman, J.K.
1992-02-01
This report characterizes Upper Cretaceous Campanian and Maastrichtian, and lower Tertiary gas-bearing rocks in the Uinta Basin with special emphasis on those units that contain gas in reservoirs that have been described as being tight. The report was prepared for the USDOE whose Western Tight Gas Sandstone Program cofunded much of this research in conjunction with the US Geological Survey`s Evolution of Sedimentary Basins, and Onshore Oil and Gas Programs. (VC)
Fragmentation functions at next-to-next-to-leading order accuracy
Anderle, Daniele P.; Stratmann, Marco; Ringer, Felix
2015-12-01
We present a first analysis of parton-to-pion fragmentation functions at next-to-next-to-leading order accuracy in QCD based on single-inclusive pion production in electron-positron annihilation. Special emphasis is put on the technical details necessary to perform the QCD scale evolution and cross section calculation in Mellin moment space. Lastly, we demonstrate how the description of the data and the theoretical uncertainties are improved when next-to-next-to-leading order QCD corrections are included.
Electronic computers and telephone exchanges
NASA Astrophysics Data System (ADS)
Flowers, T. H.
1980-01-01
A retrospective on the telephone, with emphasis on development of digital methods, is presented. Starting with its invention in 1876, major breakthroughs in transmission and switching circuitry are reviewed. The thermionic valve (1917), the Eccles-Jordan trigger circuit (1921), copper oxide rectifiers (1920's), and the gas-tube binary counter (1931) are highlighted. The evolution of logic design in telephone exchanges and the interaction this had with electronic computers is then traced up to the appearance of COLOSSUS, a specialized electronic computer used for cryptanalysis (1943).
78 FR 33428 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-06-04
... Infectious Diseases Special Emphasis Panel; ``Clinical Trials Units for NIAID Networks'' (Meeting 3). Date... Institute of Allergy and Infectious Diseases Special Emphasis Panel; Clinical Trials Units for NIAID... Diseases Special Emphasis Panel; Clinical Trials Units for NIAID Networks. Date: June 28, 2013. Time: 10:00...
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2010-11-15
... Diabetes and Digestive and Kidney Diseases; Notice of Closed Meetings Pursuant to section 10(d) of the... Diabetes and Digestive and Kidney Diseases Special Emphasis Panel; Special Emphasis Panel for R01... Diabetes and Digestive and Kidney Diseases Special Emphasis Panel; Liver Ancillary Studies. Date: December...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-23
... Diabetes and Digestive and Kidney Diseases Special Emphasis Panel; Chronic Pelvic Pain Clinical Study. Date... Digestive and Kidney Diseases Special Emphasis Panel; Ulcerative Colitis Clinical Trials. Date: March 29... Diseases Special Emphasis Panel; Urology Clinical Trials. Date: March 30, 2011. Time: 2:30 p.m. to 3:30 p.m...
Galupa, Rafael; Heard, Edith
2018-04-23
The packaging of genetic material into chromatin and chromosomes has been recognized for more than a century, thanks to microscopy and biochemical approaches. This was followed by the progressive realization that chromatin organization is critical for genome functions such as transcription and DNA replication and repair. The recent discovery that chromosomes are partitioned at the submegabase scale into topologically associating domains (TADs) has implications for our understanding of gene regulation during developmental processes such as X-chromosome inactivation, as well as for evolution and for the search for disease-associated loci. Here we discuss our current knowledge about this recently recognized level of mammalian chromosome organization, with a special emphasis on the potential role of TADs as a structural basis for the function and evolution of mammalian regulatory landscapes. © 2017 Galupa and Heard; Published by Cold Spring Harbor Laboratory Press.
A case history of technology transfer
NASA Technical Reports Server (NTRS)
1981-01-01
A sequence of events, occurring over the last 25 years, are described that chronicle the evolution of ion-bombardment electric propulsion technology. Emphasis is placed on the latter phases of this evolution, where special efforts were made to pave the way toward the use of this technology in operational space flight systems. These efforts consisted of a planned program to focus the technology toward its end applications and an organized process that was followed to transfer the technology from the research-technology NASA Center to the user-development NASA Center and its industry team. Major milestones in this evolution, which are described, include the development of thruster technology across a large size range, the successful completion of two space electric rocket tests, SERT I and SERT II, development of power-processing technology for electric propulsion, completion of a program to make the technology ready for flight system development, and finally the technology transfer events.
C/EBPα deregulation as a paradigm for leukemogenesis.
Pulikkan, J A; Tenen, D G; Behre, G
2017-11-01
Myeloid master regulator CCAAT enhancer-binding protein alpha (C/EBPα) is deregulated by multiple mechanisms in leukemia. Inhibition of C/EBPα function plays pivotal roles in leukemogenesis. While much is known about how C/EBPα orchestrates granulopoiesis, our understanding of molecular transformation events, the role(s) of cooperating mutations and clonal evolution during C/EBPα deregulation in leukemia remains elusive. In this review, we will summarize the latest research addressing these topics with special emphasis on CEBPA mutations. We conclude by describing emerging therapeutic strategies to restore C/EBPα function.
The evolution of plant secretory structures and emergence of terpenoid chemical diversity.
Lange, Bernd Markus
2015-01-01
Secretory structures in terrestrial plants appear to have first emerged as intracellular oil bodies in liverworts. In vascular plants, internal secretory structures, such as resin ducts and laticifers, are usually found in conjunction with vascular bundles, whereas subepidermal secretory cavities and epidermal glandular trichomes generally have more complex tissue distribution patterns. The primary function of plant secretory structures is related to defense responses, both constitutive and induced, against herbivores and pathogens. The ability to sequester secondary (or specialized) metabolites and defense proteins in secretory structures was a critical adaptation that shaped plant-herbivore and plant-pathogen interactions. Although this review places particular emphasis on describing the evolution of pathways leading to terpenoids, it also assesses the emergence of other metabolite classes to outline the metabolic capabilities of different plant lineages.
76 FR 81952 - National Cancer Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-29
... Emphasis Panel SPORE in Lymphoma, Brain, Head/Neck and Lung Cancers, and Sarcoma. Date: February 8-9, 2012... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Cancer Institute... personal privacy. Name of Committee: National Cancer Institute Special Emphasis Panel, P01 Special Emphasis...
75 FR 61767 - Center For Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-10-06
...: Center for Scientific Review Special Emphasis Panel, Special: Signal Transduction and Drug Discovery in... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health Center For Scientific Review... personal privacy. Name of Committee: Center for Scientific Review Special Emphasis Panel, Member Conflict...
75 FR 57965 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-09-23
... Emphasis Panel; RFA Panel: Drug Discovery for the Nervous System. Date: October 14-15, 2010. Time: 8 a.m...: Center for Scientific Review Special Emphasis Panel; RFA Panel: Drug Discovery for the Nervous System... Review Special Emphasis Panel; Small Business: Visual Systems. Date: October 28, 2010. Time: 8 a.m. to 6...
78 FR 31952 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
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2013-05-28
... Allergy and Infectious Diseases Special Emphasis Panel; Clinical Trials Units for NIAID Networks. Date... Emphasis Panel; Clinical Trials Unit for NIAID Networks NIAID. Date: June 18, 2013. Time: 9:00 a.m. to 5:00...: National Institute of Allergy and Infectious Diseases Special Emphasis Panel; Clinical Trials Units for...
78 FR 60294 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-10-01
... for Scientific Review Special Emphasis Panel; Member Conflict: The Molecular Immunology of Host... Special Emphasis Panel; Member Conflict: Topics in Bacterial Pathogenesis and Antimicrobial Resistance...
75 FR 39697 - National Institute of General Medical Sciences; Notice of Closed Meeting
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2010-07-12
... Sciences Special Emphasis Pharmacology, Physiology, Biological Chemistry Special Emphasis Panel. Date: July..., Pharmacology, Physiology, and Biological Chemistry Research; 93.862, Genetics and Developmental Biology...
77 FR 37424 - Center For Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-06-21
... Special Emphasis Panel; Small Business Biological Chemistry, Biophyscis and Drug Discovery. Date: July 16...: Center for Scientific Review Special Emphasis Panel; Fellowship: Chemistry, Biochemistry, Biophysics, and...
76 FR 5182 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-01-28
... Scientific Review Special Emphasis Panel, PAR-10-074: Technology Development for High-Throughput Structural...: Center for Scientific Review Special Emphasis Panel, Risk Prevention and Intervention Addictions...
Analysis of proposed criteria for human response to vibration
NASA Technical Reports Server (NTRS)
Janeway, R. N.
1975-01-01
The development of criteria for human vibration response is reviewed, including the evolution of the ISO standard 2631. The document is analyzed to show why its application to vehicle ride evaluation is strongly opposed. Alternative vertical horizontal limits for comfort are recommended in the ground vehicle ride frequency range above 1 Hz. These values are derived by correlating the absorbed power findings of Pradko and Lee with other established criteria. Special emphasis is placed on working limits in the frequency range of 1 to 10 Hz since this is the most significant area in ground vehicle ride evaluation.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-08-11
..., Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Initial Review The meeting announced below concerns Special Interest Project (SIP), Systematic Review of Effective Community-based... Discussed: The meeting will include the initial review, discussion, and evaluation of ``Systematic Review of...
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2011-08-19
..., Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Initial Review The meeting announced below concerns Special Interest Project (SIP): Systematic Review of Effective Community-based Interventions of Clinical Preventive Services for Older Adults, SIP11-045, initial review. Correction: This...
78 FR 4419 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-01-22
...: Center for Scientific Review Special Emphasis Panel, Biomedical Imaging and Engineering Area Review. Date... . Name of Committee: Center for Scientific Review Special Emphasis Panel, Member Conflict: Nanotechnology...
75 FR 5601 - National Institute on Aging; Notice of Closed Meetings
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2010-02-03
... Committee: National Institute on Aging Special Emphasis Panel, Alzheimer's Disease Genetics. Date: March 4... of Committee: National Institute on Aging Special Emphasis Panel, Drug Development for Alzheimer's...
76 FR 7868 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-11
... Special Emphasis Panel, Small Business: Computational Biology, Image Processing and Data Mining. Date... for Scientific Review Special Emphasis Panel, Quick Trial on Imaging and Image-Guided Intervention...
76 FR 6486 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-04
... Review Special Emphasis Panel; Member Conflict: Memory, Pain and Auditory Neuroscience. Date: March 8-9...: Center for Scientific Review Special Emphasis Panel; Member Conflict: Learning, Alcohol and...
77 FR 26771 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-07
[email protected] . Name of Committee: Center for Scientific Review Special Emphasis Panel; Motor... . Name of Committee: Center for Scientific Review Special Emphasis Panel; Member Conflict: Obesity...
77 FR 11139 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-02-24
...: Center for Scientific Review Special Emphasis Panel; ``Genetics and Epigenetics of Disease.'' Date: March... Scientific Review Special Emphasis Panel; Small Business: Cell, Computational, and Molecular Biology. Date...
76 FR 6805 - Center for Scientific Review; Notice of Closed Meetings
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2011-02-08
... Committee: Center for Scientific Review Special Emphasis Panel; Small Business: Immunology. Date: March 10... Scientific Review Special Emphasis Panel; Member Conflict: Topics on Infectious Diseases and Microbiology...
75 FR 32958 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-10
...: Center for Scientific Review Special Emphasis Panel; Member Conflicts: Topics in Infectious Diseases and....gov . Name of Committee: Center for Scientific Review Special Emphasis Panel; Fellowships: Immunology...
78 FR 27975 - Center for Scientific Review Notice of Closed Meetings
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2013-05-13
... Scientific Review Special Emphasis Panel; Systemic Injury By Environmental Exposure. Date: June 11, 2013... . Name of Committee: Center for Scientific Review Special Emphasis Panel; Member conflict: Lung Diseases...
Evolution of the genetic machinery of the visual cycle: a novelty of the vertebrate eye?
Albalat, Ricard
2012-05-01
The discovery in invertebrates of ciliary photoreceptor cells and ciliary (c)-opsins established that at least two of the three elements that characterize the vertebrate photoreceptor system were already present before vertebrate evolution. However, the origin of the third element, a series of biochemical reactions known as the "retinoid cycle," remained uncertain. To understand the evolution of the retinoid cycle, I have searched for the genetic machinery of the cycle in invertebrate genomes, with special emphasis on the cephalochordate amphioxus. Amphioxus is closely related to vertebrates, has a fairly prototypical genome, and possesses ciliary photoreceptor cells and c-opsins. Phylogenetic and structural analyses of the amphioxus sequences related with the vertebrate machinery do not support a function of amphioxus proteins in chromophore regeneration but suggest that the genetic machinery of the retinoid cycle arose in vertebrates due to duplications of ancestral nonvisual genes. These results favor the hypothesis that the retinoid cycle machinery was a functional innovation of the primitive vertebrate eye.
78 FR 7791 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-04
... . Name of Committee: Center for Scientific Review Special Emphasis Panel; Fellowship: Immunology. Date...: Center for Scientific Review Special Emphasis Panel; AREA: Immunology. Date: March 1, 2013. Time: 10:00 a...
77 FR 24967 - Center for Scientific Review; Notice of Closed Meetings
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2012-04-26
... Special Emphasis Panel PAR12-010 Smoking and Tobacco Revision Applications: Social Sciences and Population... . Name of Committee: Center for Scientific Review Special Emphasis Panel Social Sciences and Population...
78 FR 12071 - Center for Scientific Review; Notice of Closed Meetings
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2013-02-21
[email protected] . Name of Committee: Center for Scientific Review Special Emphasis Panel; Stem Cell...: Center for Scientific Review Special Emphasis Panel; Small Business: Skeletal Muscle. Date: March 14...
76 FR 64090 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-10-17
... Special Emphasis Panel, Oxidative Stress, Aging, and Transmitters. Date: November 9-10, 2011. Time: 8 a.m...: Center for Scientific Review Special Emphasis Panel, Fellowships: Physiology and Pathobiology of...
75 FR 39548 - Center for Scientific Review; Notice of Closed Meetings
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2010-07-09
...: Center for Scientific Review Special Emphasis Panel; Program Project: NeuroAIDS. Date: August 4-5, 2010... Committee: Center for Scientific Review Special Emphasis Panel; Member Conflict: AIDS Molecular Biology and...
76 FR 24900 - Center for Scientific Review; Notice of Closed Meetings
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2011-05-03
... personal privacy. Name of Committee: Center for Scientific Review Special Emphasis Panel; Brain Function... Special Emphasis Panel; Member Conflict: Risk Prevention and Health Behavior. Date: June 6, 2011. Time: 11...
76 FR 3642 - National Cancer Institute; Notice of Closed Meetings
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2011-01-20
... Cancer Institute Special Emphasis Panel, Innovative and Early Stage Development of Emerging Technologies... Special Emphasis Panel, Emerging Technologies for Cancer Research. Date: March 29-30, 2011. Time: 8 a.m...
78 FR 42969 - Center For Scientific Review; Notice of Closed Meetings
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2013-07-18
... personal privacy. Name of Committee: Center for Scientific Review Special Emphasis Panel;, Molecular and... for Scientific Review Special Emphasis Panel; Genetics of Cell Regulation. Date: August 1, 2013. Time...
76 FR 5597 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-01
... Special Emphasis Panel; Drug Discovery for the Nervous System. Date: February 25, 2011. Time: 1 p.m. to 4... Scientific Review Special Emphasis Panel; Small Business: Biomaterials, Delivery Systems, and Nanotechnology...
77 FR 31861 - Center for Scientific Review; Notice of Closed Meetings
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2012-05-30
... Special Emphasis Panel; Member Conflict: Teen Relationship Violence. Date: June 20, 2012. Time: 2:00 p.m... personal privacy. Name of Committee: Center for Scientific Review Special Emphasis Panel; Member Conflict...
78 FR 50069 - Center for Scientific Review; Notice of Closed Meetings
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2013-08-16
... Special Emphasis Panel; Shared Instruments: Mass Spectrometers. Date: September 10-11, 2013. Time: 8:00 a... Scientific Review Special Emphasis Panel; Member Conflict: Cell Biology. Date: September 11-12, 2013. Time: 8...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-07-18
... Emphasis Panel--Amyotrophic Lateral Sclerosis (ALS) Brain Bank, Notice of Meeting The Department of... Special Emphasis Panel--ALS Brain Bank will meet on July 23, 2013, from 9 a.m. until 4 p.m. in Building 57... VA ALS Brain Bank for its continued funding. The VA ALS Brain Bank is a project of high programmatic...
78 FR 11658 - National Institute of General Medical Sciences; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-19
... Institute of General Medical Sciences Special Emphasis Panel; Biomedical Instrumentation 1. Date: March 12... Sciences Special Emphasis Panel; Biomedical Instrumentation 2. Date: March 13, 2013. Time: 8:30 a.m. to 5...
75 FR 62552 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-10-12
... Special Emphasis Panel, Member Conflict: Risk Prevention and Health Behavior. Date: November 5, 2010. Time... Special Emphasis Panel, PAR-08-222: International Brain Disorders. Date: November 19, 2010. Time: 8:30 a.m...
75 FR 65639 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-10-26
...: Computational Biology Special Emphasis Panel A. Date: October 29, 2010. Time: 2 p.m. to 3:30 p.m. Agenda: To.... Name of Committee: Center for Scientific Review Special Emphasis Panel; Member Conflict: Computational...
75 FR 31797 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-04
... Emphasis Panel; Special Topics: Social Science and Population Studies. Date: June 24-25, 2010. Time: 8:30 a... Scientific Review Special Emphasis Panel; BMIT/CMIP/MEDI Imaging Applications. Date: June 24, 2010. Time: 12...
78 FR 11898 - National Institute of Neurological Disorders and Stroke; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-20
... Neurological Disorders and Stroke; Notice of Closed Meetings Pursuant to section 10(d) of the Federal Advisory... Disorders and Stroke Special Emphasis Panel; Specialized Neuroscience Research Program (SNRP). Date: April 2... Disorders and Stroke Special Emphasis Panel; Wellstone Review. Date: April 10-11, 2013. Time: 8:00 a.m. to 6...
76 FR 12362 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-03-07
... Review Special Emphasis Panel; Chronic Pain Syndromes. Date: March 22-23, 2011. Time: 7 a.m. to 8 p.m.... Name of Committee: Center for Scientific Review Special Emphasis Panel; PAR-08-160: Metabolic Effects...
76 FR 18230 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-01
... . Name of Committee: National Institute of Allergy and Infectious Diseases Special Emphasis Panel; Immune... Diseases Special Emphasis Panel; Immune Response to Infection Meeting II. Date: April 26, 2011. Time: 8 a.m...
75 FR 6676 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-02-10
... Special Emphasis Panel; Small Business: Genes, Genomes, and Genetics. Date: March 4, 2010. Time: 8 a.m. to... Special Emphasis Panel; Small Business: Diabetes, Obesity and Nutrition. Date: March 4-5, 2010. Time: 10 a...
Elder, John P.; Ayala, Guadalupe X.; McKenzie, Thomas L.; Litrownik, Alan J.; Gallo, Linda C.; Arredondo, Elva M.; Talavera, Gregory A.; Kaplan, Robert M.
2013-01-01
Background The Institute for Behavioral and Community Health (IBACH) is a transdisciplinary organization with a team-oriented approach to the translation of research to practice and policy within the context of behavioral medicine. Objectives This paper tracks the growth of IBACH — in the context of evolving multi-university transdisciplinary research efforts — from a behavioral medicine research focus to community approaches to disease prevention and control, ultimately specializing in Latino health research and practice. We describe how this growth was informed by our partnerships with community members and organizations, and training a diverse array of students and young professionals. Methods Since 1982, IBACH’s research has evolved to address a greater breadth of factors associated with health and well-being. This was driven by our strong community focus and emphasis on collaborations, the diversity of our investigative teams, and our emphasis on training. Although behavioral science still forms the core of IBACH’s scientific orientation, research efforts extend beyond those traditionally examined. Conclusions IBACH’s “team science” successes have been fueled by a specific population emphasis making IBACH one of the nation’s leaders in Latino health behavior research. PMID:25435566
Federal Register 2010, 2011, 2012, 2013, 2014
2013-01-29
... Digestive and Kidney Diseases Special Emphasis Panel; Host Innate Immune Microbial Interactions in... Kidney Diseases Special Emphasis Panel; DDK-D Members Conflict SEP. Date: March 13, 2013. Time: 10:10 a.m...
76 FR 30370 - National Institute of Diabetes and Digestive and Kidney Diseases; Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-05-25
... Institute of Diabetes and Digestive and Kidney Diseases Special Emphasis Panel; Obesity and Pregnancy... Special Emphasis Panel; Obesity and Pregnancy. Date: July 14-15, 2011. Time: 8 a.m. to 5 p.m. Agenda: To...
NASA Technical Reports Server (NTRS)
1980-01-01
The results of the Large Space Systems Technology special emphasis task are presented. The task was an analysis of structural requirements deriving from the initial Phase A Operational Geostationary Platform study.
Molecular processes from the AGB to the PN stage
NASA Astrophysics Data System (ADS)
García-Hernández, D. Anibal
2012-08-01
Many complex organic molecules and inorganic solid-state compounds have been observed in the circumstellar shell of stars (both C-rich and O-rich) in the transition phase between Asymptotic Giant Branch (AGB) stars and Planetary Nebulae (PNe). This short (~102-104 years) phase of stellar evolution represents a wonderful laboratory for astrochemistry and provides severe constraints on any model of gas-phase and solid-state chemistry. One of the major challenges of present day astrophysics and astrochemistry is to understand the formation pathways of these complex organic molecules and inorganic solid-state compounds (e.g., polycyclic aromatic hydrocarbons, fullerenes, and graphene in the case of a C-rich chemistry and oxides and crystalline silicates in O-rich environments) in space. In this review, I present an observational review of the molecular processes in the late stages of stellar evolution with a special emphasis on the first detections of fullerenes and graphene in PNe.
Wang, Harris H; Church, George M
2011-01-01
Engineering at the scale of whole genomes requires fundamentally new molecular biology tools. Recent advances in recombineering using synthetic oligonucleotides enable the rapid generation of mutants at high efficiency and specificity and can be implemented at the genome scale. With these techniques, libraries of mutants can be generated, from which individuals with functionally useful phenotypes can be isolated. Furthermore, populations of cells can be evolved in situ by directed evolution using complex pools of oligonucleotides. Here, we discuss ways to utilize these multiplexed genome engineering methods, with special emphasis on experimental design and implementation. Copyright © 2011 Elsevier Inc. All rights reserved.
Tectonic wedging in the forearc basin - Accretionary prism transition, Lesser Antilles forearc
NASA Technical Reports Server (NTRS)
Torrini, Rudolph, Jr.; Speed, Robert C.
1989-01-01
This paper describes regional structure of the inner forearc of the southern Lesser Antilles, which contains an extensive 50-70 km wide inner forearc deformation belt (IFDB) developed above crystalline basement of the undeformed forearc basin (FAB), close to and perhaps above its probable subduction trace with Atlantic lithosphere. The IFDB is analyzed, with emphasis placed on five transects across the belt, using mainly migrated seismic sections and balanced model cross sections. The IFDB features and its evolution are discussed, with special attention given to the major structures divided by early and late stages of development, paleobathymetric history, event timing, displacement and strain, and alternative tectonic explanations.
Numerical Hydrodynamics in General Relativity.
Font, José A
2000-01-01
The current status of numerical solutions for the equations of ideal general relativistic hydrodynamics is reviewed. Different formulations of the equations are presented, with special mention of conservative and hyperbolic formulations well-adapted to advanced numerical methods. A representative sample of available numerical schemes is discussed and particular emphasis is paid to solution procedures based on schemes exploiting the characteristic structure of the equations through linearized Riemann solvers. A comprehensive summary of relevant astrophysical simulations in strong gravitational fields, including gravitational collapse, accretion onto black holes and evolution of neutron stars, is also presented. Supplementary material is available for this article at 10.12942/lrr-2000-2.
Why is the VLT Very Efficient?
NASA Astrophysics Data System (ADS)
Comerón, F.
2009-09-01
The operations model of the ESO Very Large Telescope (VLT) heavily relies on a full-scale implementation of Service Mode observing. In this contribution we review the main features of ESO's approach to Service Mode at the VLT, we outline the advantages offered by this mode, and the challenges faced when implementing it given the wide diversity of instrumentation and instrument modes currently available at the VLT and the VLT Interferometer (VLTI). We give special emphasis to the part of this challenge directly derived from the evolution of the atmospheric conditions, which drive the short-term scheduling of the different scientific programmes competing for the available time.
Bianchi, Giada; Ghobrial, Irene M
Clonal heterogeneity and clonal evolution have emerged as critical concepts in the field of oncology over the past four decades, largely thanks to the implementation of novel technologies such as comparative genomic hybridization, whole genome/exome sequencing and epigenetic analysis. Along with the identification of cancer stem cells in the majority of neoplasia, the recognition of intertumor and intratumor variability has provided a novel perspective to understand the mechanisms behind tumor evolution and its implication in terms of treatment failure and cancer relapse or recurrence. First hypothesized over two decades ago, clonal heterogeneity and clonal evolution have been confirmed in multiple myeloma (MM), an incurable cancer of plasma cells, almost universally preceded by a pre-malignant conditioned named monoclonal gammopathy of undetermined significance (MGUS). The genetic events and molecular mechanisms underlying such evolution have been difficult to dissect. Moreover, while a role for the bone marrow microenvironment in supporting MM cell survival, proliferation and drug-resistance has been well established, whether it is directly involved in driving evolution from MGUS to MM is at present unclear. We present in this review a historical excursus on the concepts of clonal heterogeneity and clonal evolution in MM with a special emphasis on their role in the progression from MGUS to MM; the contribution of the microenvironment; and the clinical implications in terms of resistance to treatment and disease relapse/recurrence.
Bianchi, Giada; Ghobrial, Irene M.
2015-01-01
Clonal heterogeneity and clonal evolution have emerged as critical concepts in the field of oncology over the past four decades, largely thanks to the implementation of novel technologies such as comparative genomic hybridization, whole genome/exome sequencing and epigenetic analysis. Along with the identification of cancer stem cells in the majority of neoplasia, the recognition of intertumor and intratumor variability has provided a novel perspective to understand the mechanisms behind tumor evolution and its implication in terms of treatment failure and cancer relapse or recurrence. First hypothesized over two decades ago, clonal heterogeneity and clonal evolution have been confirmed in multiple myeloma (MM), an incurable cancer of plasma cells, almost universally preceded by a pre-malignant conditioned named monoclonal gammopathy of undetermined significance (MGUS). The genetic events and molecular mechanisms underlying such evolution have been difficult to dissect. Moreover, while a role for the bone marrow microenvironment in supporting MM cell survival, proliferation and drug-resistance has been well established, whether it is directly involved in driving evolution from MGUS to MM is at present unclear. We present in this review a historical excursus on the concepts of clonal heterogeneity and clonal evolution in MM with a special emphasis on their role in the progression from MGUS to MM; the contribution of the microenvironment; and the clinical implications in terms of resistance to treatment and disease relapse/recurrence. PMID:25705146
75 FR 3239 - National Cancer Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-01-20
... Committee: National Cancer Institute Special Emphasis Panel, Basal-like Breast Cancer Assay. Date: March 10... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Cancer Institute... Cancer Institute Special Emphasis Panel, Data Harmonization and Advanced Computation of Population Health...
78 FR 27409 - Office of the Director, National Institutes of Health; Notice of Closed Meetings
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2013-05-10
... Programs Special Emphasis Panel; Comparative Medicine Resources. Date: June 5-6, 2013. Time: 8:00 a.m. to 5... Infrastructure Programs Special Emphasis Panel; Comparative Medicine Training. Date: June 25-26, 2013. Time: 8:00...
77 FR 59934 - National Cancer Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-10-01
....396, Cancer Biology Research; 93.397, Cancer Centers Support; 93.398, Cancer Research Manpower; 93.399... Committee: National Cancer Institute Special Emphasis Panel; Minority-Based Community Clinical Oncology... Committee: National Cancer Institute Special Emphasis Panel; Exploratory/Developmental Research Programs in...
75 FR 21002 - National Cancer Institute; Notice of Closed Meetings
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2010-04-22
... Cancer Institute Special Emphasis Panel, SPORE in Lymphoma and Breast Cancer. Date: June 15-16, 2010... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Cancer Institute... personal privacy. Name of Committee: National Cancer Institute Special Emphasis Panel, Drug Discovery...
75 FR 22411 - National Institute on Aging; Notice of Closed Meetings
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2010-04-28
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75 FR 8979 - Center for Scientific Review; Notice of Closed Meetings
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2010-02-26
... Review Special Emphasis Panel, Biomaterials, Delivery Systems, and Nanotechnology. Date: March 15-16... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health Center for Scientific Review... personal privacy. Name of Committee: Center for Scientific Review Special Emphasis Panel, PAR08-130...
78 FR 61377 - Center for Scientific Review; Notice of Closed Meetings
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2013-10-03
... . Name of Committee: Center for Scientific Review Special Emphasis Panel; Small Business: Drug Discovery... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health Center for Scientific Review... personal privacy. Name of Committee: Center for Scientific Review Special Emphasis Panel; Members Conflicts...
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2010-07-27
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel: Patient Protection and Affordable Care Act (PPACA), Emerging Infections Program (EIP), Enhancing Epidemiology and Laboratory Capacity...
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2010-08-25
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel: National Human Immunodeficiency Virus (HIV) Behavioral Surveillance, Funding Opportunity Announcement PS11-001; Initial Review Correction...
78 FR 2681 - Center for Scientific Review; Notice of Closed Meetings
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2013-01-14
...-435-1212, [email protected] . Name of Committee: Immunology Integrated Review Group; Innate Immunity... Scientific Review Special Emphasis Panel; Member Conflicts: Pain and Hearing Date: February 12-13, 2013. Time... Committee: Center for Scientific Review Special Emphasis Panel; Member Conflict: Radiation Oncology. Date...
Brain Specialization Research and the Teaching of Nonverbal Communication.
ERIC Educational Resources Information Center
Jensen, Marvin D.
1980-01-01
The connectionist theory of brain functioning, which holds that specialization exists within the brain, has three implications for teachers of nonverbal communication. One implication involves the relative emphasis to be placed on linguistic/linear versus nonlinguistic/nonlinear mental processing. Teachers can shift emphasis to nonlinguistic…
Federal Register 2010, 2011, 2012, 2013, 2014
2010-01-27
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel: Occupational Safety and Health Training Projects Grants, Request for Applications (RFA) 06-484; and Occupational Safety and Health Educational...
76 FR 3641 - National Heart, Lung, and Blood Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-01-20
... Institute Special Emphasis Panel, Program Project in Cardiovascular Diseases. Date: February 8, 2011. Time... Blood Institute Special Emphasis Panel, Program Project in Cardiovascular Diseases. Date: February 9... Vascular Diseases Research; 93.838, Lung Diseases Research; 93.839, Blood Diseases and Resources Research...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-12-13
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Pregnancy Risk Assessment... initial review, discussion, and evaluation of ``Pregnancy Risk Assessment Monitoring System (PRAMS), DP11...
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2010-03-23
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Natural Experiments and... meeting will include the initial review, discussion, and evaluation of ``Natural Experiments and...
78 FR 37232 - National Institute on Aging; Notice of Closed Meetings
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2013-06-20
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2010-12-17
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Addressing Global TB Prevention and Control in all Populations and Strengthening Health Facilities, Laboratories, Prisons and Other...
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2010-05-24
... evaluation of applications received in response to ``Addressing Emerging Infectious Diseases and Related... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Addressing Emerging Infectious...
77 FR 59198 - Center for Scientific Review; Notice of Closed Meetings
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2012-09-26
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76 FR 59707 - National Center for Complementary & Alternative Medicine; Notice of Closed Meetings
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2011-09-27
... Complementary & Alternative Medicine; Notice of Closed Meetings Pursuant to section 10(d) of the Federal... for Complementary and Alternative Medicine Special Emphasis Panel, Training and Education. Date... Complementary and Alternative Medicine Special Emphasis Panel, Clinical Studies of CAM Therapies. Date: November...
78 FR 21959 - Center for Scientific Review ; Notice of Closed Meetings
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2013-04-12
... personal privacy. Name of Committee: Center for Scientific Review Special Emphasis Panel; Member Conflict... Panel; RFA DA13-003: Tobacco Centers of Regulatory Science for Research, Relevant to the Family Smoking... Special Emphasis Panel; Member Conflict: Behavioral Interventions to Address Multiple Chronic Health...
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2012-04-27
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Initial Review The meeting announced below concerns Evaluation of Dengue Epidemiology, Outcomes, and Prevention in Sentinel...
78 FR 41939 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
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2013-07-12
... Allergy and Infectious Diseases; Notice of Closed Meetings Pursuant to section 10(d) of the Federal... Infectious Diseases Special Emphasis Panel; NIAID Investigator Initiated Program Project Applications. Date... Allergy and Infectious Diseases Special Emphasis Panel; NIAID Investigator Initiated Program Project...
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2013-03-08
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panels (SEP): Initial Review The meeting announced below concerns Epidemiology, Prevention and Treatment of Influenza and other Respiratory...
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2010-02-10
..., Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Human Immunodeficiency Virus (HIV... evaluation of applications received in response to ``HIV Prevention Projects for Community Based..., Extramural Programs, National Center for HIV, Hepatitis and Sexually Transmitted Diseases Prevention, 1600...
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2013-05-14
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Initial Review The meeting announced below concerns Youth Violence Training and Technical Assistance, Funding Opportunity Announcement...
75 FR 76987 - Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP...
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2010-12-10
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Epidemiologic and Ecologic... evaluation of applications received in response to ``Epidemiologic and Ecologic Determinants of Monkeypox in...
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2011-04-11
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75 FR 20370 - National Cancer Institute; Notice of Closed Meetings
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2010-04-19
... Special Emphasis Panel, Breast Cancer Biology. Date: May 20, 2010. Time: 8 a.m. to 5 p.m. Agenda: To... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Cancer Institute... Cancer Institute Special Emphasis Panel, Assay Systems for Drug Efficacy in Cancer Stem Cells. Date...
75 FR 29773 - Notice of Meeting
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2010-05-27
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Agency for Healthcare Research and Quality Notice of...), announcement is made of a Health Care Policy and Research Special Emphasis Panel (SEP) meeting. A Special Emphasis Panel is a group of experts in fields related to health care research who are invited by the...
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2010-03-03
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2010-06-02
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2010-05-24
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Conducting Public Health Research... in response to ``Conducting Public Health Research in Kenya (Panel C),'' FOA GH10-003. Contact Person...
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2010-08-25
... Diabetes and Digestive and Kidney Diseases; Notice of Closed Meetings Pursuant to section 10(d) of the... Diabetes and Digestive and Kidney Diseases Special Emphasis Panel, Diabetes Immunology Ancillary Studies... Kidney Diseases Special Emphasis Panel, Diabetes Epidemiology Ancillary Study. Date: October 13, 2010...
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2011-05-23
... Diabetes and Digestive and Kidney Diseases; Notice of Closed Meetings Pursuant to section 10(d) of the... Diabetes and Digestive and Kidney Diseases Special Emphasis Panel, NIDDK Interconnectivity Network. Date... and Digestive and Kidney Diseases Special Emphasis Panel, Digestive Diseases Program Projects. Date...
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2013-09-23
... Diabetes and Digestive and Kidney Diseases; Notice of Closed Meetings Pursuant to section 10(d) of the... Diabetes and Digestive and Kidney Diseases Special Emphasis Panel, Bariatric Surgery-- Related Ancillary... of Diabetes and Digestive and Kidney Diseases Special Emphasis Panel, Regulatory Mechanisms in...
77 FR 15112 - National Institute of Neurological Disorders and Stroke; Notice of Closed Meetings
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2012-03-14
... Neurological Disorders and Stroke; Notice of Closed Meetings Pursuant to section 10(d) of the Federal Advisory... Disorders and Stroke Special Emphasis Panel, Neurosurgeon Scientific Training. Date: March 30, 2012. Time: 8... . Name of Committee: National Institute of Neurological Disorders and Stroke Special Emphasis Panel...
75 FR 13769 - National Eye Institute; Notice of Closed Meetings
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2010-03-23
... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Eye Institute... unwarranted invasion of personal privacy. Name of Committee: National Eye Institute Special Emphasis Panel; National Eye Institute SBIR Special Emphasis Panel. Date: April 9, 2010. Time: 8:30 a.m. to 5 p.m. Agenda...
76 FR 75552 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
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2011-12-02
... Allergy and Infectious Diseases; Notice of Closed Meetings Pursuant to section 10(d) of the Federal... Institute of Allergy and Infectious Diseases Special Emphasis Panel, NIAID Investigator Initiated Program... Institute of Allergy and Infectious Diseases Special Emphasis Panel, NIAID Investigator Initiated Program...
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2012-01-23
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention (CDC) Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Data Coordinating Center for Autism and Other Developmental Disabilities Research and Epidemiologic Studies, RFA DD12-001, Initial...
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2010-12-17
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Centers for Autism and... evaluation of ``Centers for Autism and Developmental Disabilities Research and Epidemiology (CADDRE), FOA...
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2012-03-02
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Reducing Health Disparities Among... to ``Reducing Health Disparities among People with Intellectual Disabilities, FOA DD12-003, initial...
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2011-01-26
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Pregnancy Risk Assessment Monitoring System (PRAMS), DP11-001 Panel D, Initial Review Notice of Cancellation: This notice was published...
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2011-01-31
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Pregnancy Risk Assessment..., discussion, and evaluation of ``Pregnancy Risk Assessment Monitoring System (PRAMS), DP11-001 Panels A, B...
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2012-01-04
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Initial Review The meeting announced below concerns National HIV Behavioral Surveillance For Young Men Who Have Sex With Men, Funding...
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2011-05-11
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Virologic Evaluation of the Modes of Influenza Virus Transmission Among Humans, Funding Opportunity Announcement, IP11-001 Correction...
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2011-03-14
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Family History and Diamond Blackfan Anemia, DD11- 010, Initial Review Correction: This notice was published in the Federal Register on...
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2010-03-15
... National Institute of Child Health & Human Development; Notice of Closed Meetings Pursuant to section 10(d... Institute of Child Health and Human Development Special Emphasis Panel, Pharmacokinetics and... . Name of Committee: National Institute of Child Health and Human Development Special Emphasis Panel, HIV...
76 FR 63625 - National Heart, Lung, and Blood Institute; Notice of Closed Meetings
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2011-10-13
... Heart, Lung, and Blood Institute Special Emphasis Panel, Blood Pressure Regulations PPG. Date: November... Blood Institute; Notice of Closed Meetings Pursuant to section 10(d) of the Federal Advisory Committee... Blood Institute Special Emphasis Panel, NHLBI Conference Grant Review. Date: November 1-2, 2011. Time: 8...
75 FR 18510 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
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2010-04-12
... Allergy and Infectious Diseases Special Emphasis Panel; ``In Vitro Assessments for Antimicrobial Activity... and Infectious Diseases Special Emphasis Panel; ``In vitro Assessments for Antimicrobial Activity... meetings will be closed to the public in accordance with the provisions set forth in sections [[Page 18511...
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2011-03-04
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): The Association of Genetic Biomarkers and Hereditary Hemochromatosis, DD11-008, Initial Review Correction: This notice was published in...
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2011-01-21
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): The Association of Genetic... meeting will include the initial review, discussion, and evaluation of ``The Association of Genetic...
75 FR 30039 - National Center for Complementary and Alternative Medicine; Notice of Closed Meetings
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2010-05-28
... Complementary and Alternative Medicine; Notice of Closed Meetings Pursuant to section 10(d) of the Federal... Complementary and Alternative Medicine Special Emphasis Panel; Education Panel. Date: June 24-25, 2010. Time: 5... of Committee: National Center for Complementary and Alternative Medicine Special Emphasis Panel; RFA...
78 FR 56904 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
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2013-09-16
... Infectious Diseases Special Emphasis Panel; NIAID Clinical Trial Planning Grant (R34) and Clinical Trial... Committee: National Institute of Allergy and Infectious Diseases Special Emphasis Panel; NIAID Clinical Trial Planning Grant (R34) and Clinical Trial Implementation Cooperative Agreement (U01). Date: October...
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75 FR 38110 - Notice of Meeting
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Superhydrophobic Natural and Artificial Surfaces—A Structural Approach
Avrămescu, Roxana-Elena; Ghica, Mihaela Violeta; Dinu-Pîrvu, Cristina; Prisada, Răzvan; Popa, Lăcrămioara
2018-01-01
Since ancient times humans observed animal and plants features and tried to adapt them according to their own needs. Biomimetics represents the foundation of many inventions from various fields: From transportation devices (helicopter, airplane, submarine) and flying techniques, to sports’ wear industry (swimming suits, scuba diving gear, Velcro closure system), bullet proof vests made from Kevlar etc. It is true that nature provides numerous noteworthy models (shark skin, spider web, lotus leaves), referring both to the plant and animal kingdom. This review paper summarizes a few of “nature’s interventions” in human evolution, regarding understanding of surface wettability and development of innovative special surfaces. Empirical models are described in order to reveal the science behind special wettable surfaces (superhydrophobic /superhydrophilic). Materials and methods used in order to artificially obtain special wettable surfaces are described in correlation with plants’ and animals’ unique features. Emphasis is placed on joining superhydrophobic and superhydrophilic surfaces, with important applications in cell culturing, microorganism isolation/separation and molecule screening techniques. Bio-inspired wettability is presented as a constitutive part of traditional devices/systems, intended to improve their characteristics and extend performances. PMID:29789488
Superhydrophobic Natural and Artificial Surfaces-A Structural Approach.
Avrămescu, Roxana-Elena; Ghica, Mihaela Violeta; Dinu-Pîrvu, Cristina; Prisada, Răzvan; Popa, Lăcrămioara
2018-05-22
Since ancient times humans observed animal and plants features and tried to adapt them according to their own needs. Biomimetics represents the foundation of many inventions from various fields: From transportation devices (helicopter, airplane, submarine) and flying techniques, to sports' wear industry (swimming suits, scuba diving gear, Velcro closure system), bullet proof vests made from Kevlar etc. It is true that nature provides numerous noteworthy models (shark skin, spider web, lotus leaves), referring both to the plant and animal kingdom. This review paper summarizes a few of "nature's interventions" in human evolution, regarding understanding of surface wettability and development of innovative special surfaces. Empirical models are described in order to reveal the science behind special wettable surfaces (superhydrophobic /superhydrophilic). Materials and methods used in order to artificially obtain special wettable surfaces are described in correlation with plants' and animals' unique features. Emphasis is placed on joining superhydrophobic and superhydrophilic surfaces, with important applications in cell culturing, microorganism isolation/separation and molecule screening techniques. Bio-inspired wettability is presented as a constitutive part of traditional devices/systems, intended to improve their characteristics and extend performances.
The diversity and evolution of anuran skin peptides.
König, Enrico; Bininda-Emonds, Olaf R P; Shaw, Chris
2015-01-01
Amphibians exhibit various, characteristic adaptations related to their "incomplete" shift from the aquatic to the terrestrial habitat. In particular, the integument was subject to a number of specialized modifications during the evolution of these animals. In this review, we place special emphasis on endogenous host-defence skin peptides from the cuteanous granular glands anuran amphibians (frogs and toads). The overview on the two broad groups of neuroactive and antimicrobial peptides (AMPs) goes beyond a simple itemization in that we provide a new perspective into the evolution and function of anuran AMPs. Briefly, these cationic, amphipathic and α-helical peptides are traditionally viewed as being part of the innate immune system, protecting the moist skin against invading microorganisms through their cytolytic action. However, the complete record of anuran species investigated to date suggests that AMPs are distributed sporadically (i.e., non-universally) across Anura. Together with the intriguing observation that virtually all anurans known to produce neuropeptides in their granular glands also co-secrete cytolytic peptides, we call the traditional role for AMPs as being purely antimicrobial into question and present an alternative scenario. We hypothesize AMPs to assist neuroactive peptides in their antipredator role through their cytolytic action increasing the delivery of the latter to the endocrine and nervous system of the predator. Thus, AMPs are more accurately viewed as cytolysins and their contribution to the immune system is better regarded as an accessory benefit. Copyright © 2014 Elsevier Inc. All rights reserved.
CHNS: A case study of turbulence in elastic media
NASA Astrophysics Data System (ADS)
Fan, Xiang; Diamond, P. H.; Chacón, L.
2018-05-01
Recent progress in the study of Cahn-Hilliard Navier-Stokes (CHNS) turbulence is summarized. This is an example of elastic turbulence, which can occur in elastic (i.e., self-restoring) media. Such media exhibit memory due to freezing-in laws, as does MHD, which in turn constrains the dynamics. We report new results in the theory of CHNS turbulence in 2D, with special emphasis on the role of structure (i.e., "blob") formation and its interaction with the dual cascade. The evolution of a concentration gradient in response to a single eddy—analogous to flux expulsion in MHD—is analyzed. Lessons learned are discussed in the context of MHD and other elastic media.
2009 Epigenetics Gordon Research Conference (August 9 - 14, 2009)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Jeanie Lee
Epigenetics refers to the study of heritable changes in genome function that occur without a change in primary DNA sequence. The 2009 Gordon Conference in Epigenetics will feature discussion of various epigenetic phenomena, emerging understanding of their underlying mechanisms, and the growing appreciation that human, animal, and plant health all depend on proper epigenetic control. Special emphasis will be placed on genome-environment interactions particularly as they relate to human disease. Towards improving knowledge of molecular mechanisms, the conference will feature international leaders studying the roles of higher order chromatin structure, noncoding RNA, repeat elements, nuclear organization, and morphogenic evolution. Traditionalmore » and new model organisms are selected from plants, fungi, and metazoans.« less
78 FR 21960 - National Institute on Aging; Notice of Closed Meetings
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... and Alzheimer's Disease. Date: June 12, 2013. Time: 11 a.m. to 2 p.m. Agenda: To review and evaluate... Special Emphasis Panel; Alzheimer's Disease Prevention. Date: July 11, 2013. Time: 1 p.m. to 4 p.m. Agenda... of Committee: National Institute on Aging Special Emphasis Panel; Alzheimer's Disease Prevention...
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2012-04-16
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2012-11-20
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2013-07-05
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2010-05-20
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A Special Education Systems Simulation Model: Teacher Training Emphasis.
ERIC Educational Resources Information Center
Jones, Wayne; And Others
The authors illustrate the application of a systems approach for educational decision-makers through utilization of a special education systems simulation model with emphasis on teacher training. It is noted that the model provides a procedure to answer "what if" type questions before actually implementing a proposed program. Discussed are the…
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2011-03-14
... Institute of Arthritis and Musculoskeletal and Skin Diseases Special Emphasis Panel; Rheumatic Disease... Arthritis and Musculoskeletal And Skin Diseases; Notice of Closed Meetings Pursuant to section 10(d) of the... Arthritis and Musculoskeletal and Skin Diseases Special Emphasis Panel; Program Project Grant Review. Date...
77 FR 51032 - National Cancer Institute; Notice of Closed Meetings
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2012-08-23
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2010-05-11
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ERIC Educational Resources Information Center
Cady, Jennifer
2010-01-01
In order to guide organizational growth in the Master's in Education with an emphasis in Special Education program, offered at Southwestern College, an in-depth qualitative study was conducted with participants from three specific realms located in the state of Kansas. Participants from the Kansas State Department of Education, Southwestern…
Deja Vu: Another Call for Replications of Research, Again.
ERIC Educational Resources Information Center
Newman, Isadore; McNeil, Keith; Fraas, John W.
Over the last few years, there has been evolution, although not a linear one, that has progressed from an emphasis on statistical significance to an emphasis on effect size to an emphasis on both of these concepts to what is believed to be a pragmatic emphasis on replicability. This paper presented two methods of estimating a study's replicability…
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2011-02-16
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76 FR 27070 - National Institute of Allergy and Infectious Diseases;
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2012-11-27
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2010-02-24
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On gravitational waves in Born-Infeld inspired non-singular cosmologies
NASA Astrophysics Data System (ADS)
Beltrán Jiménez, Jose; Heisenberg, Lavinia; Olmo, Gonzalo J.; Rubiera-Garcia, Diego
2017-10-01
We study the evolution of gravitational waves for non-singular cosmological solutions within the framework of Born-Infeld inspired gravity theories, with special emphasis on the Eddington-inspired Born-Infeld theory. We review the existence of two types of non-singular cosmologies, namely bouncing and asymptotically Minkowski solutions, from a perspective that makes their features more apparent. We study in detail the propagation of gravitational waves near these non-singular solutions and carefully discuss the origin and severity of the instabilities and strong coupling problems that appear. We also investigate the role of the adiabatic sound speed of the matter sector in the regularisation of the gravitational waves evolution. We extend our analysis to more general Born-Infeld inspired theories where analogous solutions are found. As a general conclusion, we obtain that the bouncing solutions are generally more prone to instabilities, while the asymptotically Minkowski solutions can be rendered stable, making them appealing models for the early universe.
Substrate dependent hierarchical structures of RF sputtered ZnS films
NASA Astrophysics Data System (ADS)
Chalana, S. R.; Mahadevan Pillai, V. P.
2018-05-01
RF magnetron sputtering technique was employed to fabricate ZnS nanostructures with special emphasis given to study the effect of substrates (quartz, glass and quartz substrate pre-coated with Au, Ag, Cu and Pt) on the structure, surface evolution and optical properties. Type of substrate has a significant influence on the crystalline phase, film morphology, thickness and surface roughness. The present study elucidates the suitability of quartz substrate for the deposition of stable and highly crystalline ZnS films. We found that the role of metal layer on quartz substrate is substantial in the preparation of hierarchical ZnS structures and these structures are of great importance due to its high specific area and potential applications in various fields. A mechanism for morphological evolution of ZnS structures is also presented based on the roughness of substrates and primary nonlocal effects in sputtering. Furthermore, the findings suggest that a controlled growth of hierarchical ZnS structures may be achieved with an ordinary RF sputtering technique by changing the substrate type.
On gravitational waves in Born-Infeld inspired non-singular cosmologies
DOE Office of Scientific and Technical Information (OSTI.GOV)
Jiménez, Jose Beltrán; Heisenberg, Lavinia; Olmo, Gonzalo J.
We study the evolution of gravitational waves for non-singular cosmological solutions within the framework of Born-Infeld inspired gravity theories, with special emphasis on the Eddington-inspired Born-Infeld theory. We review the existence of two types of non-singular cosmologies, namely bouncing and asymptotically Minkowski solutions, from a perspective that makes their features more apparent. We study in detail the propagation of gravitational waves near these non-singular solutions and carefully discuss the origin and severity of the instabilities and strong coupling problems that appear. We also investigate the role of the adiabatic sound speed of the matter sector in the regularisation of themore » gravitational waves evolution. We extend our analysis to more general Born-Infeld inspired theories where analogous solutions are found. As a general conclusion, we obtain that the bouncing solutions are generally more prone to instabilities, while the asymptotically Minkowski solutions can be rendered stable, making them appealing models for the early universe.« less
NASA Astrophysics Data System (ADS)
Chela-Flores, Julian
1998-04-01
Our present understanding of the origin and evolution of chromosomes differs considerably from current understanding of the origin and evolution of the cell itself. Chromosome origins have been less prominent in research, as the emphasis has not shifted so far appreciably from the phenomenon of primeval nucleic acid encapsulation to that of the origin of gene organization, expression, and regulation. In this work we discuss some reasons why preliminary steps in this direction are being taken. We have been led to examine properties that have contributed to raise the ancestral prokaryotic programmes to a level where we can appreciate in eukaryotes a clear departure from earlier themes in the evolution of the cell from the last common ancestor. We shift our point of view from evolution of cell morphology to the point of view of the genes. In particular, we focus attention on possible physical bases for the way transmission of information has evolved in eukaryotes, namely, the inactivation of whole chromosomes. The special case of the inactivation of the X chromosome in mammals is discussed, paying particular attention to the physical process of the spread of X inactivation in monotremes (platypus and echidna). When experimental data is unavailable some theoretical analysis is possible based on the idea that in certain cases collective phenomena in genetics, rather than chemical detail, are better correlates of complex chemical processes.
The development of counselling psychology in Ireland
Connolly, Allison; O'Callaghan, Dermot; O'Brien, Owen; Broderick, John; Long, Catherine; O'Grady, Ian
2014-01-01
This paper discusses the distinctive nature of the specialism of counselling psychology and outlines the development of the discipline in Ireland in the context of international developments and its recognition as a professional branch of applied psychology. Today, counselling psychologists are employed in varied clinical and non-clinical settings including health and mental health services (statutory, private and voluntary sector) along with education, forensic, justice, industry and private practices. Counselling psychologist is the primary professional identity of many practising psychologists in Ireland and the Psychological Society of Ireland's Division of Counselling Psychology is the main affiliation of at least 179 members. With its focus on facilitating personal and interpersonal functioning across the life span and its emphasis on the therapeutic process, the specialism continues to bridge the disciplines of psychology, counselling and psychotherapy. In this article, some of the challenges still faced by counselling psychology are explored as it navigates its way through the changing landscape of further development and evolution. PMID:26494940
77 FR 37421 - National Institute of Neurological Disorders and Stroke; Notice of Closed Meetings
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2012-06-21
... Neurological Disorders and Stroke; Notice of Closed Meetings Pursuant to section 10(d) of the Federal Advisory... Disorders and Stroke Special Emphasis Panel, NINDS Center for Clinical Trial Resources. Date: July 10, 2012... Stroke Special Emphasis Panel, PD Biomarker Review. Date: July 18, 2012. Time: 8:00 a.m. to 6:00 p.m...
76 FR 63625 - Center for Scientific Review Notice of Closed Meetings
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2011-10-13
...: Diabetes and Nutrition. Date: November 8, 2011. Time: 12 p.m. to 6 p.m. Agenda: To review and evaluate... Disorders and Neuropathies Special Emphasis Panel. Date: October 26, 2011. Time: 2 p.m. to 4 p.m. Agenda: To... Special Emphasis Panel; Small Business: Radiation Therapy and Biology. Date: November 1-2, 2011. Time: 9 a...
Spherically symmetric Einstein-aether perfect fluid models
DOE Office of Scientific and Technical Information (OSTI.GOV)
Coley, Alan A.; Latta, Joey; Leon, Genly
We investigate spherically symmetric cosmological models in Einstein-aether theory with a tilted (non-comoving) perfect fluid source. We use a 1+3 frame formalism and adopt the comoving aether gauge to derive the evolution equations, which form a well-posed system of first order partial differential equations in two variables. We then introduce normalized variables. The formalism is particularly well-suited for numerical computations and the study of the qualitative properties of the models, which are also solutions of Horava gravity. We study the local stability of the equilibrium points of the resulting dynamical system corresponding to physically realistic inhomogeneous cosmological models and astrophysicalmore » objects with values for the parameters which are consistent with current constraints. In particular, we consider dust models in (β−) normalized variables and derive a reduced (closed) evolution system and we obtain the general evolution equations for the spatially homogeneous Kantowski-Sachs models using appropriate bounded normalized variables. We then analyse these models, with special emphasis on the future asymptotic behaviour for different values of the parameters. Finally, we investigate static models for a mixture of a (necessarily non-tilted) perfect fluid with a barotropic equations of state and a scalar field.« less
Chemical processes involved in the initiation of hot corrosion of B-1900 and NASA-TRW VIA
NASA Technical Reports Server (NTRS)
Fryburg, G. C.; Kohl, F. J.; Stearns, C. A.
1979-01-01
Sodium sulfate induced hot corrosion of B-1900 and NASA-TRW VIA at 900 C was studied with special emphasis on the chemical reactions occurring during and immediately after the induction period. Thermogravimetric tests were run for set periods of time after which the samples were washed with water and water soluable metal salts and/or residual sulfates were analyzed chemically. Element distributions within the oxide layer were obtained from electron microprobe X-ray micrographs. A third set of samples were subjected to surface analysis by X-ray photoelectron spectroscopy. Evolution of SO2 was monitored throughout many of the hot corrosion tests. Results are interpreted in terms of acid-base fluxing mechanisms.
NASA Astrophysics Data System (ADS)
Depalo, Rosanna;
2018-01-01
A precise knowledge of the cross section of nuclear fusion reactions is a crucial ingredient in understanding stellar evolution and nucleosynthesis. At stellar temperatures, fusion cross sections are extremely small and difficult to measure. Measuring nuclear cross sections at astrophysical energies is a challenge that triggered a huge amount of experimental work. A breakthrough in this direction was the first operation of an underground accelerator at the Laboratory for Underground Nuclear Astrophysics (LUNA) in Gran Sasso, Italy. The 1400 meters of rocks above the laboratory act as a natural shield against cosmic radiation, suppressing the background by orders of magnitude. The latest results achieved at LUNA are discussed, with special emphasis on the 22Ne(p,γ)23Na reaction. Future perspectives of the LUNA experiment are also illustrated.
NASA Technical Reports Server (NTRS)
Smith, Jesse B.
1992-01-01
Solar Activity prediction is essential to definition of orbital design and operational environments for space flight. This task provides the necessary research to better understand solar predictions being generated by the solar community and to develop improved solar prediction models. The contractor shall provide the necessary manpower and facilities to perform the following tasks: (1) review, evaluate, and assess the time evolution of the solar cycle to provide probable limits of solar cycle behavior near maximum end during the decline of solar cycle 22, and the forecasts being provided by the solar community and the techniques being used to generate these forecasts; and (2) develop and refine prediction techniques for short-term solar behavior flare prediction within solar active regions, with special emphasis on the correlation of magnetic shear with flare occurrence.
Health in the Family and Consumer Sciences Curriculum: Full Circle?
ERIC Educational Resources Information Center
Richards, Virginia; Kettler, Mary C.; Brown, Elfrieda F.
1999-01-01
Analysis of documents from 19 college home economics/family and consumer sciences programs demonstrated the evolution of health core curriculum from emphasis on sanitation, nutrition, and food preparation to hospital-related health care. Today's emphasis on health care costs and wellness has shifted emphasis to home health care and prevention. (SK)
77 FR 511 - Center for Scientific Review; Notice of Closed Meetings
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2012-01-05
... Emphasis Panel, PAR-11-228: Shared Instrumentation: Cell Biology, Physiology and Robotics. Date: February 1...: Center for Scientific Review Special Emphasis Panel, Multidisciplinary Healthcare Delivery Research AREA...
76 FR 60507 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-29
... Emphasis Panel, Small Business: Diabetes, Obesity and Reproductive Sciences. Date: October 25-26, 2011... . Name of Committee: Center for Scientific Review Special Emphasis Panel, Fellowship: Genes, Genomes, and...
2010-02-25
gave significantly higher emphasis ratings (i.e., a statistically significant difference between SOF operators and SOF leaders). Responses were made...i.e., a statistically significant difference between SOF operators and SOF leaders). Responses were made on the following scale: 1 = No emphasis, 2...missions?” Means with an asterisk (*) indicate that the group gave significantly higher emphasis ratings (i.e., a statistically significant difference
Data Needs for Stellar Atmosphere and Spectrum Modeling
NASA Technical Reports Server (NTRS)
Short, C. I.
2006-01-01
The main data need for stellar atmosphere and spectrum modeling remains atomic and molecular transition data, particularly energy levels and transition cross-sections. We emphasize that data is needed for bound-free (b - f) as well as bound-bound (b - b), and collisional as well as radiative transitions. Data is now needed for polyatomic molecules as well as atoms, ions, and diatomic molecules. In addition, data for the formation of, and extinction due to, liquid and solid phase dust grains is needed. A prioritization of species and data types is presented, and gives emphasis to Fe group elements, and elements important for the investigation of nucleosynthesis and Galactic chemical evolution, such as the -elements and n-capture elements. Special data needs for topical problems in the modeling of cool stars and brown dwarfs are described.
An expanded set of brown dwarf and very low mass star models
NASA Technical Reports Server (NTRS)
Burrows, A.; Hubbard, W. B.; Saumon, D.; Lunine, J. I.
1993-01-01
We present in this paper updated and improved theoretical models of brown dwarfs and late M dwarfs. The evolution and characteristics of objects between 0.01 and 0.2 solar mass are exhaustively investigated and special emphasis is placed on their properties at early ages. The dependence on the helium fraction, deuterium fraction, and metallicity of the masses, effective temperature and luminosities at the edge of the hydrogen main sequence are calculated. We derive luminosity functions for representative mass functions and compare our predictions to recent cluster data. We show that there are distinctive features in the theoretical luminosity functions that can serve as diagnostics of brown dwarf physics. A zero-metallicity model is presented as a bound to or approximation of a putative extreme halo population.
Electrobiorefineries: Unlocking the Synergy of Electrochemical and Microbial Conversions.
Harnisch, Falk; Urban, Carolin
2017-12-13
An integrated biobased economy urges an alliance of the two realms of "chemical production" and "electric power". The concept of electrobiorefineries provides a blueprint for such an alliance. Joining the forces of microbial and electrochemical conversions in electrobiorefineries allows interfacing the production, storage, and exploitation of electricity as well as biobased chemicals. Electrobiorefineries are a technological evolution of biorefineries by the addition of (bio)electrochemical transformations. This interfacing of microbial and electrochemical conversions will result in synergies affecting the entire process line, like enlarging the product portfolio, increasing the productivity, or exploiting new feedstock. A special emphasis is given to the utilization of oxidative and reductive electroorganic reactions of microbially produced intermediates that may serve as privileged building blocks. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Joint evolution of specialization and dispersal in structured metapopulations.
Nurmi, Tuomas; Parvinen, Kalle
2011-04-21
We study the joint evolution of dispersal and specialization concerning resource usage in a mechanistically underpinned structured discrete-time metapopulation model. We show that dispersal significantly affects the evolution of specialization and that specialization is a key factor that determines the possibility of evolutionary branching in dispersal propensity. Allowing both dispersal propensity and specialization to evolve as a consequence of natural selection is necessary in order to understand the evolutionary dynamics. The joint evolution of dispersal and specialization forms a natural evolutionary path leading to the coexistence of generalists and specialists. We show that in this process, the number of different patch types and the resource distribution are essential. Copyright © 2011 Elsevier Ltd. All rights reserved.
Evolution of functional specialization and division of labor.
Rueffler, Claus; Hermisson, Joachim; Wagner, Günter P
2012-02-07
Division of labor among functionally specialized modules occurs at all levels of biological organization in both animals and plants. Well-known examples include the evolution of specialized enzymes after gene duplication, the evolution of specialized cell types, limb diversification in arthropods, and the evolution of specialized colony members in many taxa of marine invertebrates and social insects. Here, we identify conditions favoring the evolution of division of labor by means of a general mathematical model. Our starting point is the assumption that modules contribute to two different biological tasks and that the potential of modules to contribute to these tasks is traded off. Our results are phrased in terms of properties of performance functions that map the phenotype of modules to measures of performance. We show that division of labor is favored by three factors: positional effects that predispose modules for one of the tasks, accelerating performance functions, and synergistic interactions between modules. If modules can be lost or damaged, selection for robustness can counteract selection for functional specialization. To illustrate our theory we apply it to the evolution of specialized enzymes coded by duplicated genes.
78 FR 36201 - Center for Scientific Review; Notice of Closed Meetings
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2013-06-17
... Emphasis Panel; PAR-11-100: Alzheimer's Disease Pilot Clinical Trials. Date: July 17, 2013. Time: 2:00 p.m... for Scientific Review Special Emphasis Panel; Microbiology and Infectious Diseases AREA Review. Date...
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2013-09-16
... Emphasis Panel; Comparative Medicine Resource Applications. Date: October 9-10, 2013. Time: 8:00 a.m. to 5... of Research Infrastructure Programs Special Emphasis Panel; Comparative Medicine Training...
78 FR 15729 - Center for Scientific Review; Notice of Closed Meetings
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2013-03-12
... Emphasis Panel; RFA Panel: Molecular and Cellular Substrates of Complex Brain Disorders. Date: March 29... Scientific Review Special Emphasis Panel; Member Conflict: Genetics of Disease. Date: March 29, 2013. Time: 1...
Evolution and Depths of the High-Ti Mare Picrite Glass Source Regions
NASA Technical Reports Server (NTRS)
Hess, Paul C.
1997-01-01
The objectives of this research were to examine the igneous evolution of the Moon with emphasis on the petrogenesis of Mare basalts, lunar troctolites and the Mg-rich suite and on the evolution of the crystallization products of the magma ocean.
Massive contribution of transposable elements to mammalian regulatory sequences.
Rayan, Nirmala Arul; Del Rosario, Ricardo C H; Prabhakar, Shyam
2016-09-01
Barbara McClintock discovered the existence of transposable elements (TEs) in the late 1940s and initially proposed that they contributed to the gene regulatory program of higher organisms. This controversial idea gained acceptance only much later in the 1990s, when the first examples of TE-derived promoter sequences were uncovered. It is now known that half of the human genome is recognizably derived from TEs. It is thus important to understand the scope and nature of their contribution to gene regulation. Here, we provide a timeline of major discoveries in this area and discuss how transposons have revolutionized our understanding of mammalian genomes, with a special emphasis on the massive contribution of TEs to primate evolution. Our analysis of primate-specific functional elements supports a simple model for the rate at which new functional elements arise in unique and TE-derived DNA. Finally, we discuss some of the challenges and unresolved questions in the field, which need to be addressed in order to fully characterize the impact of TEs on gene regulation, evolution and disease processes. Copyright © 2016 Elsevier Ltd. All rights reserved.
Space-Time, Relativity, and Cosmology
NASA Astrophysics Data System (ADS)
Wudka, Jose
2006-07-01
Space-Time, Relativity and Cosmology provides a historical introduction to modern relativistic cosmology and traces its historical roots and evolution from antiquity to Einstein. The topics are presented in a non-mathematical manner, with the emphasis on the ideas that underlie each theory rather than their detailed quantitative consequences. A significant part of the book focuses on the Special and General theories of relativity. The tests and experimental evidence supporting the theories are explained together with their predictions and their confirmation. Other topics include a discussion of modern relativistic cosmology, the consequences of Hubble's observations leading to the Big Bang hypothesis, and an overview of the most exciting research topics in relativistic cosmology. This textbook is intended for introductory undergraduate courses on the foundations of modern physics. It is also accessible to advanced high school students, as well as non-science majors who are concerned with science issues.• Uses a historical perspective to describe the evolution of modern ideas about space and time • The main arguments are described using a completely non-mathematical approach • Ideal for physics undergraduates and high-school students, non-science majors and general readers
Grabińska, Kariona A; Park, Eon Joo; Sessa, William C
2016-08-26
cis-Prenyltransferases (cis-PTs) constitute a large family of enzymes conserved during evolution and present in all domains of life. cis-PTs catalyze consecutive condensation reactions of allylic diphosphate acceptor with isopentenyl diphosphate (IPP) in the cis (Z) configuration to generate linear polyprenyl diphosphate. The chain lengths of isoprenoid carbon skeletons vary widely from neryl pyrophosphate (C10) to natural rubber (C>10,000). The homo-dimeric bacterial enzyme, undecaprenyl diphosphate synthase (UPPS), has been structurally and mechanistically characterized in great detail and serves as a model for understanding the mode of action of eukaryotic cis-PTs. However, recent experiments have revealed that mammals, fungal, and long-chain plant cis-PTs are heteromeric enzymes composed of two distantly related subunits. In this review, the classification, function, and evolution of cis-PTs will be discussed with a special emphasis on the role of the newly described NgBR/Nus1 subunit and its plants' orthologs as essential, structural components of the cis-PTs activity. © 2016 by The American Society for Biochemistry and Molecular Biology, Inc.
Visual circuits of the avian telencephalon: evolutionary implications
NASA Technical Reports Server (NTRS)
Shimizu, T.; Bowers, A. N.
1999-01-01
Birds and primates are vertebrates that possess the most advanced, efficient visual systems. Although lineages leading to these two classes were separated about 300 million years ago, there are striking similarities in their underlying neural mechanisms for visual processing. This paper discusses such similarities with special emphasis on the visual circuits in the avian telencephalon. These similarities include: (1) the existence of two parallel visual pathways and their distinct telencephalic targets, (2) anatomical and functional segregation within the visual pathways, (3) laminar organization of the telencephalic targets of the pathways (e.g. striate cortex in primates), and (4) possible interactions between multiple visual areas. Additional extensive analyses are necessary to determine whether these similarities are due to inheritance from a common ancestral stock or the consequences of convergent evolution based on adaptive response to similar selective pressures. Nevertheless, such a comparison is important to identify the general and specific principles of visual processing in amniotes (reptiles, birds, and mammals). Furthermore, these principles in turn will provide a critical foundation for understanding the evolution of the brain in amniotes.
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Do we really understand quantum mechanics? Strange correlations, paradoxes, and theorems
NASA Astrophysics Data System (ADS)
Laloë, F.
2001-06-01
This article presents a general discussion of several aspects of our present understanding of quantum mechanics. The emphasis is put on the very special correlations that this theory makes possible: They are forbidden by very general arguments based on realism and local causality. In fact, these correlations are completely impossible in any circumstance, except for very special situations designed by physicists especially to observe these purely quantum effects. Another general point that is emphasized is the necessity for the theory to predict the emergence of a single result in a single realization of an experiment. For this purpose, orthodox quantum mechanics introduces a special postulate: the reduction of the state vector, which comes in addition to the Schrödinger evolution postulate. Nevertheless, the presence in parallel of two evolution processes of the same object (the state vector) may be a potential source for conflicts; various attitudes that are possible to avoid this problem are discussed in this text. After a brief historical introduction, recalling how the very special status of the state vector has emerged in quantum mechanics, various conceptual difficulties are introduced and discussed. The Einstein-Podolsky-Rosen (EPR) theorem is presented with the help of a botanical parable, in a way that emphasizes how deeply the EPR reasoning is rooted into what is often called "scientific method." In another section the Greenberger-Horne-Zeilinger argument, the Hardy impossibilities, as well as the Bell-Kochen-Specker theorem are introduced in simple terms. The final two sections attempt to give a summary of the present situation: One section discusses nonlocality and entanglement as we see it presently, with brief mention of recent experiments; the last section contains a (nonexhaustive) list of various attitudes that are found among physicists, and that are helpful to alleviate the conceptual difficulties of quantum mechanics.
76 FR 22112 - National Human Genome Research Institute; Notice of Closed Meeting
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2011-04-20
... Emphasis Panel, Special Emphasis Panel (SEP)--Model Organism database (MOD). Date: June 20, 2011. Time: 8 a.m. to 5 p.m. Agenda: To review and evaluate grant applications. Place: Crystal Gateway Marriott...
American Muslim Undergraduates' Views on Evolution
ERIC Educational Resources Information Center
Fouad, Khadija Engelbrecht
2016-01-01
A qualitative investigation into American Muslim undergraduates' views on evolution revealed three main positions on evolution: theistic evolution, a belief in special creation of all species, and a belief in special creation of humans with evolution for all non-human species. One can conceive of the manner in which respondents chose their…
Virtues and Well-Being of Korean Special Education Teachers
ERIC Educational Resources Information Center
Kim, So-Young; Lim, Young-Jin
2016-01-01
Although much emphasis has been paid to stress and burnout among special education teachers, little attention has been paid to their well-being. This study aimed to examine relations between virtues and well-being among Korean special education teachers. Virtues and well-being of 115 Korean special education teachers were assessed using the…
Neurodiversity: The Future of Special Education?
ERIC Educational Resources Information Center
Armstrong, Thomas
2017-01-01
The way special education is carried out in U.S. schools must change. Special education has become weighed down by its emphasis on deficits and disorders: As regular education has opened to new ways of thinking about brain neuroplasticity, growth mindsets, and other innovations, special education has held fast to its diagnostic categories,…
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2011-01-27
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76 FR 70463 - Center for Scientific Review; Notice of Closed Meetings
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2011-11-14
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Office of exploration overview
NASA Technical Reports Server (NTRS)
Alred, John
1989-01-01
The NASA Office of Exploration case studies for FY89 are reviewed with regard to study ground rules and constraints. Three study scenarios are presented: lunar evolution, Mars evolution, and Mars expedition with emphasis on the key mission objectives.
NASA Astrophysics Data System (ADS)
Aguillard, Donald Wayne
Louisiana public school biology teachers were surveyed to investigate their attitudes toward biological evolution. A mixed method investigation was employed using a questionnaire and open-ended interviews. Results obtained from 64 percent of the sample receiving the questionnaire indicate that although teachers endorse the study of evolution as important, instructional time allocated to evolution is disproportionate with its status as a unifying concept of science. Two variables, number of college courses specifically devoted to evolution and number of semester credit hours in biology, produced a significant correlation with emphasis placed on evolution. The data suggest that teachers' knowledge base emerged as the most significant factor in determining degree of classroom emphasis on evolution. The data suggest a need for substantive changes in the training of biology teachers. Thirty-five percent of teachers reported pursuing fewer than 20 semester credit hours in biology and 68 percent reported fewer than three college courses in which evolution was specifically discussed. Fifty percent reported a willingness to undergo additional training about evolution. In spite of the fact that evolution has been identified as a major conceptual theme across all of the sciences, there is strong evidence that Louisiana biology teachers de-emphasize evolutionary theory. Even when biology teachers allocate instructional time to evolutionary theory, many avoid discussion of human evolution. The research data show that only ten percent of teachers reported allocating more than sixty minutes of instructional time to human evolution. Louisiana biology teachers were found to hold extreme views on the subject of creationism as a component of the biology curriculum. Twenty-nine percent indicated that creationism should be taught in high school biology and 25--35 percent allocated instructional time to discussions of creationism. Contributing to the de-emphasis of evolutionary theory, as a unifying theme of biology, is the courtesy extended to classroom teachers to determine what topics are emphasized. The inclusion of evolution in curriculum documents is not sufficient to ensure that evolutionary theory is regarded as a unifying theme of biology. School administrators, science supervisors, and local school boards have a clear responsibility to articulate strong support for requiring classroom discussions of evolutionary theory.
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2011-02-24
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2011-03-09
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2012-09-19
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2012-02-24
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The history of transportation, with a peak into the future
NASA Technical Reports Server (NTRS)
Anderson, John D., Jr.
1996-01-01
In the first part of this presentation, a general historical review of the heydays of various modes of transportation will be given, where 'heydays' will be interpreted as periods of fundamental technological development. With this as background, focus will then be placed on the airplane -- the mode of transportation that has changed the world in the 20th century, and which in the minds of many has been the most important technological development in this century. The technical history of air transportation (the airplane) will be reviewed, with special emphasis on the aerodynamic evolution of the airplane. Some specific examples of pivotal technical advances (and breakthroughs) from the history of applied aerodynamics will be discussed. Finally, this historical perspective will be used to help us peek into the future of transportation in the 21st century.
Evolution of centrosomes and the nuclear lamina: Amoebozoan assets.
Gräf, Ralph; Batsios, Petros; Meyer, Irene
2015-06-01
The current eukaryotic tree of life groups most eukaryotes into one of five supergroups, the Opisthokonta, Amoebozoa, Archaeplastida, Excavata and SAR (Stramenopile, Alveolata, Rhizaria). Molecular and comparative morphological analyses revealed that the last eukaryotic common ancestor (LECA) already contained a rather sophisticated equipment of organelles including a mitochondrion, an endomembrane system, a nucleus with a lamina, a microtubule-organizing center (MTOC), and a flagellar apparatus. Recent studies of MTOCs, basal bodies/centrioles, and nuclear envelope organization of organisms in different supergroups have clarified our picture of how the nucleus and MTOCs co-evolved from LECA to extant eukaryotes. In this review we summarize these findings with special emphasis on valuable contributions of research on a lamin-like protein, nuclear envelope proteins, and the MTOC in the amoebozoan model organism Dictyostelium discoideum. Copyright © 2015 Elsevier GmbH. All rights reserved.
Kalunke, Raviraj M.; Tundo, Silvio; Benedetti, Manuel; Cervone, Felice; De Lorenzo, Giulia; D'Ovidio, Renato
2015-01-01
Polygalacturonase inhibiting proteins (PGIPs) are cell wall proteins that inhibit the pectin-depolymerizing activity of polygalacturonases secreted by microbial pathogens and insects. These ubiquitous inhibitors have a leucine-rich repeat structure that is strongly conserved in monocot and dicot plants. Previous reviews have summarized the importance of PGIP in plant defense and the structural basis of PG-PGIP interaction; here we update the current knowledge about PGIPs with the recent findings on the composition and evolution of pgip gene families, with a special emphasis on legume and cereal crops. We also update the information about the inhibition properties of single pgip gene products against microbial PGs and the results, including field tests, showing the capacity of PGIP to protect crop plants against fungal, oomycetes and bacterial pathogens. PMID:25852708
Measurement Model Nonlinearity in Estimation of Dynamical Systems
NASA Astrophysics Data System (ADS)
Majji, Manoranjan; Junkins, J. L.; Turner, J. D.
2012-06-01
The role of nonlinearity of the measurement model and its interactions with the uncertainty of measurements and geometry of the problem is studied in this paper. An examination of the transformations of the probability density function in various coordinate systems is presented for several astrodynamics applications. Smooth and analytic nonlinear functions are considered for the studies on the exact transformation of uncertainty. Special emphasis is given to understanding the role of change of variables in the calculus of random variables. The transformation of probability density functions through mappings is shown to provide insight in to understanding the evolution of uncertainty in nonlinear systems. Examples are presented to highlight salient aspects of the discussion. A sequential orbit determination problem is analyzed, where the transformation formula provides useful insights for making the choice of coordinates for estimation of dynamic systems.
Study of the urban evolution of Brasilia with the use of LANDSAT data
NASA Technical Reports Server (NTRS)
Deoliveira, M. D. N. (Principal Investigator); Foresti, C.; Niero, M.; Parreiras, E. M. D. F.
1984-01-01
The urban growth of Brasilia within the last ten years is analyzed with special emphasis on the utilization of remote sensing orbital data and automatic image processing. The urban spatial structure and the monitoring of its temporal changes were focused in a whole and dynamic way by the utilization of MSS-LANDSAT images for June 1973, 1978 and 1983. In order to aid data interpretation, a registration algorithm implemented at the Interactive Multispectral Image Analysis System (IMAGE-100) was utilized aiming at the overlap of multitemporal images. The utilization of suitable digital filters, combined with the images overlap, allowed a rapid identification of areas of possible urban growth and oriented the field work. The results obtained permitted an evaluation of the urban growth of Brasilia, taking as reference the proposed stated for the construction of the city.
Litsios, Glenn; Pellissier, Loïc; Forest, Félix; Lexer, Christian; Pearman, Peter B; Zimmermann, Niklaus E; Salamin, Nicolas
2012-09-22
The rate of environmental niche evolution describes the capability of species to explore the available environmental space and is known to vary among species owing to lineage-specific factors. Trophic specialization is a main force driving species evolution and is responsible for classical examples of adaptive radiations in fishes. We investigate the effect of trophic specialization on the rate of environmental niche evolution in the damselfish, Pomacentridae, which is an important family of tropical reef fishes. First, phylogenetic niche conservatism is not detected in the family using a standard test of phylogenetic signal, and we demonstrate that the environmental niches of damselfishes that differ in trophic specialization are not equivalent while they still overlap at their mean values. Second, we estimate the relative rates of niche evolution on the phylogenetic tree and show the heterogeneity among rates of environmental niche evolution of the three trophic groups. We suggest that behavioural characteristics related to trophic specialization can constrain the evolution of the environmental niche and lead to conserved niches in specialist lineages. Our results show the extent of influence of several traits on the evolution of the environmental niche and shed new light on the evolution of damselfishes, which is a key lineage in current efforts to conserve biodiversity in coral reefs.
Litsios, Glenn; Pellissier, Loïc; Forest, Félix; Lexer, Christian; Pearman, Peter B.; Zimmermann, Niklaus E.; Salamin, Nicolas
2012-01-01
The rate of environmental niche evolution describes the capability of species to explore the available environmental space and is known to vary among species owing to lineage-specific factors. Trophic specialization is a main force driving species evolution and is responsible for classical examples of adaptive radiations in fishes. We investigate the effect of trophic specialization on the rate of environmental niche evolution in the damselfish, Pomacentridae, which is an important family of tropical reef fishes. First, phylogenetic niche conservatism is not detected in the family using a standard test of phylogenetic signal, and we demonstrate that the environmental niches of damselfishes that differ in trophic specialization are not equivalent while they still overlap at their mean values. Second, we estimate the relative rates of niche evolution on the phylogenetic tree and show the heterogeneity among rates of environmental niche evolution of the three trophic groups. We suggest that behavioural characteristics related to trophic specialization can constrain the evolution of the environmental niche and lead to conserved niches in specialist lineages. Our results show the extent of influence of several traits on the evolution of the environmental niche and shed new light on the evolution of damselfishes, which is a key lineage in current efforts to conserve biodiversity in coral reefs. PMID:22719034
Guide to Special Information in Scientific and Engineering Journals.
ERIC Educational Resources Information Center
Harris, Mary Elizabeth
This annotated bibliography lists 203 special features or special issues of science and technology periodicals with emphasis on compilations of information that appear in periodicals on a regular basis. Subjects covered in the guide include aeronautics, air-conditioning and refrigeration engineering, astronomy, automobiles, biology, botany,…
Review of the Rhein-Flugzeugbau Wankel powered aircraft program. [ducted fan engines
NASA Technical Reports Server (NTRS)
Riethmueller, M.
1978-01-01
The development of light aircraft with special emphasis on modern propulsion systems and production is discussed in terms of the application of rotary engines to aircraft. Emphasis is placed on the integrated ducted-fan propulsion system using rotary engines.
NASA Astrophysics Data System (ADS)
Skoog, Gerald; Bilica, Kimberly
2002-07-01
This study analyzed the science frameworks of 49 states and the District of Colombia to determine the emphasis given to evolution in these documents at the middle and secondary levels. These concepts were species evolve over time, speciation, diversity of life, descent with modification from common ancestry, evidence of evolution, natural selection, pace and direction of evolution, and human evolution. Collectively, the 50 science frameworks emphasized evolution in a manner that suggests that if the public's support for standards-based curricula is a reality, the study of evolution will be emphasized in an unprecedented manner in the nation's schools in the near future. However, all concepts were not emphasized equally in these documents. For example, human evolution was included in only seven documents. The word evolution is absent from some standards. Despite these negatives, recent actions to improve existing standards or to adopt new standards that emphasize evolution have occurred. The metaphor lever of change is often used in the context of school reform. This metaphor suggests a simple system where one change can result in a desired outcome. However, in classrooms where curriculum decisions evolve constantly, multiple factors interact and reinforce one another in response to both internal and external contingencies that emerge. Educational change can not be reduced to a simple linear cause/effect situation. The change process involved is nonlinear where what goes in is not proportional to what comes out because of feedback loops and other factors that complicate results. This nonlinearity is reflected in the varied responses of teachers to specific contingencies. Yet, systems can be changed and nudged towards a structure where desired outcomes will emerge. Judicial rulings indicating that the teaching of evolution cannot be prohibited or equal time for creationism mandated, improved coverage of evolution in secondary school biology textbooks, the negative response of many leaders, scientists, organizations, and editorial writers to the 1999 decision of the Kansas State Board of Education to deemphasize and misrepresent evolution in the state's science standards, and the emphasis given to evolution in the standards reviewed for this study, all coalesce to provide needed support for administrators and teachers who are striving to create science curricula that emphasize evolution in a manner commensurate with its importance in understanding the natural world and our place within it.
Attention Deficit Hyperactivity Disorder: Special Education Policy and Practice in Australia.
ERIC Educational Resources Information Center
Prosser, Brenton; Reid, Robert; Shute, Rosalyn; Atkinson, Ivan
2002-01-01
Outlines Australian special education policy and practice regarding Attention Deficit Hyperactivity Disorder (ADHD) in public schools. Drawing on U.S. comparisons, considers how recent government legislation may have made the label "disability" appear pragmatic to those seeking special education assistance. Proposes that an emphasis on…
Leadership in Early Childhood Special Education
ERIC Educational Resources Information Center
Arora, Samita Berry
2013-01-01
With the demands of high quality early childhood special education programs within public school settings, there is a need to place emphasis on research and training regarding early childhood leaders and managers in this complex and diverse field. The focus of this research is to examine what early childhood special education (ECSE) leadership…
Special Education in Canada: Past, Present and Future.
ERIC Educational Resources Information Center
Hodder, Clive
The paper reviews the history and present status of special education in Canada (with particular emphasis on the province of Ontario) and identifies recommended future directions. The legislative authority for special education and current policies are summarized in sections on the following provinces: British Columbia, Alberta, Saskatchewan,…
Special Education through Neighbourhood Centers in Algeria.
ERIC Educational Resources Information Center
Boucebci, Mahfoud
1981-01-01
The article provides a survey of special education needs in Algeria with emphasis on the role of neighborhood centers which involve parents in the education of mentally handicapped children. Journal availability: see EC 133 861. (DB)
ERIC Educational Resources Information Center
Buehler, Bruce
This 34-minute videotape on meeting the special medical needs of children is intended for use in staff development with special educators, regular educators, and school nurses serving children with special health care needs in inclusive school settings. Emphasis is on linking "what we know" in the field of medicine to "how we…
Tracking the Evolution of "Research & Practice in Assessment" through the Pages of RPA
ERIC Educational Resources Information Center
Anderson, Robin D.; Curtis, Nicolas A.
2017-01-01
Ten years ago, "Research & Practice in Assessment" (RPA) was born, providing an outlet for assessment-related research. Since that first winter issue, assessment research and practice has evolved. Like with many evolutions, the assessment practice evolution is best described as a change of emphasis as opposed to a radical revolution.…
Origin and evolution of planetary atmospheres
NASA Technical Reports Server (NTRS)
Pollack, J. B.; Yung, Y. L.
1980-01-01
The current understanding of the origin and evolution of the atmospheres of solar system objects is reviewed. Physical processes that control this evolution are described in an attempt to develop a set of general principles that can help guide studies of specific objects. Particular emphasis is placed on the planetary and satellite atmospheres of the inner solar system objects; current hypotheses on the origin and evolution of these objects are critically considered.
An overview of transverse momentum dependent factorization and evolution
DOE Office of Scientific and Technical Information (OSTI.GOV)
Rogers, Ted C.
I review TMD factorization and evolution theorems, with an emphasis on the treatment by Collins and originating in the Collins-Soper-Sterman (CSS) formalism. Furthermore, I summarize basic results while attempting to trace their development over that past several decades.
An overview of transverse-momentum-dependent factorization and evolution
NASA Astrophysics Data System (ADS)
Rogers, T. C.
2016-06-01
I review TMD factorization and evolution theorems, with an emphasis on the treatment by Collins and originating in the Collins-Soper-Sterman (CSS) formalism. I summarize basic results while attempting to trace their development over that past several decades.
An overview of transverse momentum dependent factorization and evolution
Rogers, Ted C.
2016-06-17
I review TMD factorization and evolution theorems, with an emphasis on the treatment by Collins and originating in the Collins-Soper-Sterman (CSS) formalism. Furthermore, I summarize basic results while attempting to trace their development over that past several decades.
78 FR 12072 - Center for Scientific Review; Notice of Closed Meetings
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2013-02-21
... unwarranted invasion of personal privacy. Name of Committee: AIDS and Related Research Integrated Review Group... Emphasis Panel; PAR Panel: Cancer Health Disparities/Diversity in Basic Cancer Research. Date: March 18-19... for Scientific Review Special Emphasis Panel; Small Business: Orthopedic and Skeletal Biology. Date...
78 FR 62640 - National Institute of Allergy and Infectious Diseases; Notice of Closed Meetings
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2013-10-22
... confidential trade secrets or commercial property such as patentable material, and personal information... Infectious Diseases Special Emphasis Panel; Drug Target Development and Validation for Antimicrobial... Emphasis Panel; Drug Target Development and Validation for Antimicrobial Resistant Pathogens (R21/R33...
Barger, Nicole; Stefanacci, Lisa; Schumann, Cynthia M.; Sherwood, Chet C.; Annese, Jacopo; Allman, John M.; Buckwalter, Joseph A.; Hof, Patrick R.; Semendeferi, Katerina
2016-01-01
In human and nonhuman primates, the amygdala is known to play critical roles in emotional and social behavior. Anatomically, individual amygdaloid nuclei are connected with many neural systems that are either differentially expanded or conserved over the course of primate evolution. To address amygdala evolution in humans and our closest living relatives, the apes, we used design-based stereological methods to obtain neuron counts for the amygdala and each of four major amygdaloid nuclei (the lateral, basal, accessory basal, and central nuclei) in humans, all great ape species, lesser apes, and one monkey species. Our goal was to determine whether there were significant differences in the number or percent of neurons distributed to individual nuclei among species. Additionally, regression analyses were performed on independent contrast data to determine whether any individual species deviated from allometric trends. There were two major findings. In humans, the lateral nucleus contained the highest number of neurons in the amygdala, whereas in apes the basal nucleus contained the highest number of neurons. Additionally, the human lateral nucleus contained 59% more neurons than predicted by allometric regressions on nonhuman primate data. Based on the largest sample ever analyzed in a comparative study of the hominoid amygdala, our findings suggest that an emphasis on the lateral nucleus is the main characteristic of amygdala specialization over the course of human evolution. PMID:22473387
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2012-07-03
... announced below concerns Special Interest Project (SIP): Assessing the Pregnancy Prevention Needs of HIV... evaluation of applications received in response to ``Assessing the Pregnancy Prevention Needs of HIV...
Choosing a Career in Psychiatry
... medical and surgical patients who may have psychiatric problems or who have difficulty coping with their illness. Because modern psychiatry places special emphasis on the relationship between mind and body, students pay special attention to issues of stress and ...
Policy Challenges and Opportunities for Rural Special Education
ERIC Educational Resources Information Center
Rude, Harvey; Miller, Kevin J.
2018-01-01
This article reviews current developments in state and national policies that affect rural special education. A brief overview of the federal role in rural education is provided, with emphasis on the implications for the provision of special education services in rural communities. A variety of challenges are identified, including (a) the variable…
ERIC Educational Resources Information Center
Blanton, Linda P.; Boveda, Mildred; Munoz, Lorena R.; Pugach, Marleen C.
2017-01-01
Initial licensure polices in special education were examined to determine how these policies support or hinder reform efforts to develop teacher education programs that prepare graduates for the increasingly complex needs of diverse students. Initial special education licensure policies are described with an emphasis on the differences across…
The Role of Special Education in an Overall Rehabilitation Program. Monograph Number Seven.
ERIC Educational Resources Information Center
Dyssegaard, Birgit
The monograph addresses the place of special education in the continuum of rehabilitation services with particular emphasis on special education in Denmark and the United States. New Danish laws about services for handicapped people and their implications for such aspects as normalization, decentralization, and integration are reviewed and…
The Academic and Behavioral Impact of Multiple Sport Participation on High School Athletes
ERIC Educational Resources Information Center
Kohl, Christopher James
2017-01-01
For many high school student athletes, there is increased pressure to specialize in one sport, to participate at a high level, and to play year-round (Brenner, 2016). This increased emphasis on sport specialization has led to a proliferation of overuse injuries, overtraining, and burnout (Brenner, 2016). Sport specialization significantly…
NASA Astrophysics Data System (ADS)
Chen, Mengjie; Wang, Lei; Yang, Haipeng; Zhao, Shuai; Xu, Hui; Wu, Gang
2018-01-01
A reversible fuel cell (RFC), which integrates a fuel cell with an electrolyzer, is similar to a rechargeable battery. This technology lies on high-performance bifunctional catalysts for the oxygen reduction reaction (ORR) in the fuel cell mode and the oxygen evolution reaction (OER) in the electrolyzer mode. Current catalysts are platinum group metals (PGM) such as Pt and Ir, which are expensive and scarce. Therefore, it is highly desirable to develop PGM-free catalysts for large-scale application of RFCs. In this mini review, we discussed the most promising nanocarbon/oxide composite catalysts for ORR/OER bifunctional catalysis in alkaline media, which is mainly based on our recent progress. Starting with the effectiveness of selected oxides and nanocarbons in terms of their activity and stability, we outlined synthetic methods and the resulting structures and morphologies of catalysts to provide a correlation between synthesis, structure, and property. A special emphasis is put on understanding of the possible synergistic effect between oxide and nanocarbon for enhanced performance. Finally, a few nanocomposite catalysts are discussed as typical examples to elucidate the rules of designing highly active and durable bifunctional catalysts for RFC applications.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Rout, G. C., E-mail: siva1987@iopb.res.in, E-mail: skp@iopb.res.in, E-mail: gcr@iopb.res.in; Sahu, Sivabrata; Panda, S. K.
2016-04-13
We report here a microscopic tight-binding model calculation for AB-stacked bilayer graphene in presence of biasing potential between the two layers and the impurity effects to study the evolution of the total density of states with special emphasis on opening of band gap near Dirac point. We have calculated the electron Green’s functions for both the A and B sub-lattices by Zubarev technique. The imaginary part of the Green’s function gives the partial and total density of states of electrons. The density of states are computed numerically for 1000 × 1000 grid points of the electron momentum. The evolution ofmore » the opening of band gap near van-Hove singularities as well as near Dirac point is investigated by varying the different interlayer hoppings and the biasing potentials. The inter layer hopping splits the density of states at van-Hove singularities and produces a V-shaped gap near Dirac point. Further the biasing potential introduces a U shaped gap near Dirac point with a density minimum at the applied potential(i.e. at V/2).« less
Competition, virulence, host body mass and the diversification of macro-parasites
Rascalou, Guilhem; Gourbière, Sébastien
2014-01-01
Adaptive speciation has been much debated in recent years, with a strong emphasis on how competition can lead to the diversification of ecological and sexual traits. Surprisingly, little attention has been paid to this evolutionary process to explain intrahost diversification of parasites. We expanded the theory of competitive speciation to look at the effect of key features of the parasite lifestyle, namely fragmentation, aggregation and virulence, on the conditions and rate of sympatric speciation under the standard ‘pleiotropic scenario’. The conditions for competitive speciation were found similar to those for non-parasite species, but not the rate of diversification. Adaptive evolution proceeds faster in highly fragmented parasite populations and for weakly aggregated and virulent parasites. Combining these theoretical results with standard empirical allometric relationships, we showed that parasite diversification can be faster in host species of intermediate body mass. The increase in parasite load with body mass, indeed, fuels evolution by increasing mutants production, but because of the deleterious effect of virulence, it simultaneously weakens selection for resource specialization. Those two antagonistic effects lead to optimal parasite burden and host body mass for diversification. Data on the diversity of fishes' gills parasites were found consistent with the existence of such optimum. PMID:24522783
Site Scientist for the North Slope of Alaska Site
DOE Office of Scientific and Technical Information (OSTI.GOV)
Verlinde, Johannes
2016-03-11
Under this grant our team contributed scientific support to the Department of Energy Atmospheric Radiation Program’s (DOE-ARM) Infrastructure team to maintain high quality research data at the DOE-ARM North Slope of Alaska with special emphasis on the radars. Under our guidance two major field campaigns focusing on mixed-phase Arctic clouds were conducted that greatly increased the community’s understanding of the many processes working together to control the evolution of single-layer cloud mixed-phase clouds. A series of modeling and observational studies revealed that the longevity of the radiatively important liquid phase is strongly dependent on how the ice phase develops inmore » mixed-phase clouds. A new ice microphysics parameterization was developed to capture better the natural evolution of ice particle growth in evolving environments. An ice particle scattering database was developed for all ARM radar frequencies. This database was used in a radar simulator (Doppler spectrum and polarimetric variables) to aid in the interpretation of the advanced ARM radars. At the conclusion of this project our team was poised to develop a complete radar simulator consistent with the new microphysical parameterization, taking advantage of parameterization’s advanced characterization of the ice shape and ice density.« less
Tomato Leaf Curl New Delhi Virus: An Emerging Virus Complex Threatening Vegetable and Fiber Crops
Moriones, Enrique; Chakraborty, Supriya
2017-01-01
The tomato leaf curl New Delhi virus (ToLCNDV) (genus Begomovirus, family Geminiviridae) represents an important constraint to tomato production, as it causes the most predominant and economically important disease affecting tomato in the Indian sub-continent. However, in recent years, ToLCNDV has been fast extending its host range and spreading to new geographical regions, including the Middle East and the western Mediterranean Basin. Extensive research on the genome structure, protein functions, molecular biology, and plant–virus interactions of ToLCNDV has been conducted in the last decade. Special emphasis has been given to gene silencing suppression ability in order to counteract host plant defense responses. The importance of the interaction with DNA alphasatellites and betasatellites in the biology of the virus has been demonstrated. ToLCNDV genetic variability has been analyzed, providing new insights into the taxonomy, host adaptation, and evolution of this virus. Recombination and pseudorecombination have been shown as motors of diversification and adaptive evolution. Important progress has also been made in control strategies to reduce disease damage. This review highlights these various achievements in the context of the previous knowledge of begomoviruses and their interactions with plants. PMID:28934148
Hardware Evolution of Analog Speed Controllers for a DC Motor
NASA Technical Reports Server (NTRS)
Gwaltney, David A.; Ferguson, Michael I.
2003-01-01
This viewgraph presentation provides information on the design of analog speed controllers for DC motors on aerospace systems. The presentation includes an overview of controller evolution, evolvable controller configuration, an emphasis on proportion integral (PI) controllers, schematic diagrams, and experimental results.
76 FR 31619 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-06-01
... personal privacy. Name of Committee: Center for Scientific Review Special Emphasis Panel, Molecular Genetics Applications. Date: June 20, 2011. Time: 12:30 p.m. to 3 p.m. Agenda: To review and evaluate grant... Emphasis Panel, Small Business: Molecular, Cellular and Developmental Neurobiology. Date: June 30, 2011...
76 FR 10910 - Center for Scientific Review; Notice of Closed Meetings
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2011-02-28
... Committee: Center for Scientific Review Special Emphasis Panel; RFA-HD-11-101: Sleep and Social Environment... Emphasis Panel; RFA-HD-11-102: Sleep and Social Environment: Basic Biopsychosocial Processes (R21). Date... . (Catalogue of Federal Domestic Assistance Program Nos. 93.306, Comparative Medicine; 93.333, Clinical...
76 FR 52960 - National Cancer Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-08-24
... Emphasis Panel, Mechanisms of Cell Signaling in Cancer. Date: October 13-14, 2011. Time: 3 to 5 p.m. Agenda... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Cancer Institute... personal privacy. Name of Committee: National Cancer Institute Special Emphasis Panel, Discovery, Imaging...
Robert, L; Labat-Robert, J; Robert, A M
2010-01-01
The initiation and evolution of the receptor concept and its application in pharmacology can be traced back to Paul Ehrlich's original experiments. Since several decades the receptor concept is in the foreground of cell biology and pharmacology. We present here a short reminder of Ehrlich's concepts on receptor action, its evolution and modifications as a result of increasing life expectancy of human societies. Results obtained by several teams on the age-dependent modifications of receptor function are reviewed with special emphasis on the age-dependent loss of receptors and of uncoupling of receptors from their intracellular transmission pathway. As a special example we summarize our results on the elastin receptor and its age-dependent modifications. These modifications result in the loss of the physiologically helpful functions mediated by this receptor, such as vasodilation by coupling with the inducible nitric oxide synthase (iNOS)-inhibition of cellular cholesterol synthesis and modulation of free radical production by inhibition of the guanine nucleotide binding protein (Gi protein)-mediated transmission pathway. Only the harmful effects such as free radical release and up-regulation of elastase production remain in "old" cells. The age-dependent modifications of receptor function play an important role in the increasing frequency and severity of age-related diseases such as athero-arteriosclerosis and emphysema as well as the loss of hormone- and drug actions. These processes and their inhibition or correction represent a new challenge for cellular pharmacology. Copyright © 2009 Elsevier Ireland Ltd. All rights reserved.
78 FR 57168 - Center for Scientific Review; Notice of Closed Meetings
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2013-09-17
....nih.gov . Name of Committee: Center for Scientific Review Special Emphasis Panel; Special: Systemic... Development and Disease Study Section. Date: October 16-17, 2013. Time: 8:00 a.m. to 5:30 p.m. Agenda: To...
Evolution of Our Understanding of the Solar Dynamo During Solar Cycle 24
NASA Astrophysics Data System (ADS)
Munoz-Jaramillo, A.
2017-12-01
Solar cycle 24 has been an exciting cycle for our understanding of the solar dynamo: 1. It was the first cycle for which dynamo based predictions were ever used teaching us valuable lessons. 2. It has given us the opportunity to observe a deep minimum and a weak cycle with a high level of of observational detail . 3. It is full of breaktrhoughs in anelastic MHD dynamo simulations (regular cycles, buoyant flux-tubes, mounder-like events). 4. It has seen the creation of bridges between the kinematic flux-transport and anelastic MHD approaches. 5. It has ushered a new generation of realistic surface flux-transport simulations 6. We have achieved significant observational progress in our understanding of solar cycle propagation. The objective of this talk is to highlight some of the most important results, giving special emphasis on what they have taught us about solar cycle predictability.
The unexpected high practical value of medical ontologies.
Pinciroli, Francesco; Pisanelli, Domenico M
2006-01-01
Ontology is no longer a mere research topic, but its relevance has been recognized in several practical fields. Current applications areas include natural language translation, e-commerce, geographic information systems, legal information systems and biology and medicine. It is the backbone of solid and effective applications in health care and can help to build more powerful and more interoperable medical information systems. The design and implementation of ontologies in medicine is mainly focused on the re-organization of medical terminologies. This is obviously a difficult task and requires a deep analysis of the structure and the concepts of such terminologies, in order to define domain ontologies able to provide both flexibility and consistency to medical information systems. The aim of this special issue of Computers in Biology and Medicine is to report the current evolution of research in biomedical ontologies, presenting both papers devoted to methodological issues and works with a more applicative emphasis.
Phytomonas serpens: immunological similarities with the human trypanosomatid pathogens.
Santos, André L S; d'Avila-Levy, Claudia M; Elias, Camila G R; Vermelho, Alane B; Branquinha, Marta H
2007-07-01
The present review provides an overview of recent discoveries concerning the immunological similarities between Phytomonas serpens, a tomato parasite, and human trypanosomatid pathogens, with special emphasis on peptidases. Leishmania spp. and Trypanosoma cruzi express peptidases that are well-known virulence factors, named leishmanolysin and cruzipain. P. serpens synthesizes two distinct classes of proteolytic enzymes, metallo- and cysteine-type peptidases, that share common epitopes with leishmanolysin and cruzipain, respectively. The leishmanolysin-like and cruzipain-like molecules from P. serpens participate in several biological processes including cellular growth and adhesion to the salivary glands of Oncopeltus fasciatus, a phytophagous insect experimental model. Since previous reports demonstrated that immunization of mice with P. serpens induced a partial protective immune response against T. cruzi, this plant trypanosomatid may be a suitable candidate for vaccine studies. Moreover, comparative approaches in the Trypanosomatidae family may be useful to understand kinetoplastid biology, biochemistry and evolution.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Cuevas, F.A.; Curilef, S., E-mail: scurilef@ucn.cl; Plastino, A.R., E-mail: arplastino@ugr.es
The spread of a wave-packet (or its deformation) is a very important topic in quantum mechanics. Understanding this phenomenon is relevant in connection with the study of diverse physical systems. In this paper we apply various 'spreading measures' to characterize the evolution of an initially localized wave-packet in a tight-binding lattice, with special emphasis on information-theoretical measures. We investigate the behavior of both the probability distribution associated with the wave packet and the concomitant probability current. Complexity measures based upon Renyi entropies appear to be particularly good descriptors of the details of the delocalization process. - Highlights: > Spread ofmore » highly localized wave-packet in the tight-binding lattice. > Entropic and information-theoretical characterization is used to understand the delocalization. > The behavior of both the probability distribution and the concomitant probability current is investigated. > Renyi entropies appear to be good descriptors of the details of the delocalization process.« less
Solid organ fabrication: comparison of decellularization to 3D bioprinting.
Jung, Jangwook P; Bhuiyan, Didarul B; Ogle, Brenda M
2016-01-01
Solid organ fabrication is an ultimate goal of Regenerative Medicine. Since the introduction of Tissue Engineering in 1993, functional biomaterials, stem cells, tunable microenvironments, and high-resolution imaging technologies have significantly advanced efforts to regenerate in vitro culture or tissue platforms. Relatively simple flat or tubular organs are already in (pre)clinical trials and a few commercial products are in market. The road to more complex, high demand, solid organs including heart, kidney and lung will require substantive technical advancement. Here, we consider two emerging technologies for solid organ fabrication. One is decellularization of cadaveric organs followed by repopulation with terminally differentiated or progenitor cells. The other is 3D bioprinting to deposit cell-laden bio-inks to attain complex tissue architecture. We reviewed the development and evolution of the two technologies and evaluated relative strengths needed to produce solid organs, with special emphasis on the heart and other tissues of the cardiovascular system.
Natural disasters and climate change call for the urgent decentralization of urban water systems.
Vázquez-Rowe, Ian; Kahhat, Ramzy; Lorenzo-Toja, Yago
2017-12-15
Lima is gradually upgrading its urban water cycle to comply with improved sanitation standards, with the aim of treating the entire flow of water and wastewater that it creates. However, this paper examines the basic characteristics of the main treatment systems that are currently in operation in the Peruvian capital, highlighting the myopic and inefficient nature of these investments. It digs deep in the debate between centralized and decentralized water management systems in a city that is exposed to numerous hydro-meteorological and geological hazards. Previous errors that have occurred in the developed world throughout the evolution process of the urban water cycle should be taken into consideration prior to any infrastructure development in emerging countries. For the particular case of Lima, special emphasis should be given to the resilience of its urban water system in order to guarantee rapid recovery after disaster events. Copyright © 2017 Elsevier B.V. All rights reserved.
The inland boundary layer at low latitudes
NASA Astrophysics Data System (ADS)
Garratt, J. R.
1985-08-01
Observations from the Koorin boundary-layer experiment in Australia (latitude 16 °S) were analysed in a study of the nocturnal jet development. For geostrophic winds in the range 10 20 m s-1, ageostrophic wind magnitudes of 5 10m s-1 were common above the surface layer near sunset, with cross-isobar flow angles of about 40 °. The jet that then developed by midnight was probably the result of these large ageostrophic winds, strong surface cooling and favourable baroclinity and sloping terrain. The analysis is supported by numerical model calculations with special emphasis on the role of long-wave radiative cooling on turbulent decay. Decay is rapid in the presence of radiation, although there is little influence on stress divergence levels. Evidence of sea-breeze influences on the jet evolution, and on features of deeply penetrating sea breezes in general, will be presented and discussed in part 2 of this study (submitted to Boundary-Layer Meteorol.).
López-Otín, Carlos; Blasco, Maria A.; Partridge, Linda; Serrano, Manuel; Kroemer, Guido
2013-01-01
Aging is characterized by a progressive loss of physiological integrity, leading to impaired function and increased vulnerability to death. This deterioration is the primary risk factor for major human pathologies including cancer, diabetes, cardiovascular disorders, and neurodegenerative diseases. Aging research has experienced an unprecedented advance over recent years, particularly with the discovery that the rate of aging is controlled, at least to some extent, by genetic pathways and biochemical processes conserved in evolution. This review enumerates nine tentative hallmarks that represent common denominators of aging in different organisms, with special emphasis on mammalian aging. These hallmarks are: genomic instability, telomere attrition, epigenetic alterations, loss of proteostasis, deregulated nutrient-sensing, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, and altered intercellular communication. A major challenge is to dissect the interconnectedness between the candidate hallmarks and their relative contribution to aging, with the final goal of identifying pharmaceutical targets to improve human health during aging with minimal side-effects. PMID:23746838
Application Of Interferometry To Optical Components And Systems Evaluation
NASA Astrophysics Data System (ADS)
Houston, Joseph B., Jr.
1982-05-01
Interferometry provides opticians and lens designers with the ability to evaluate optical components and systems quantitatively. A variety of interferometers and interferometric test procedures have evolved over the past several decades. This evolution has stimulated an ever-increasing amount of interest in using a new generation of instrumentation and computer software for solving cost and schedule problems both in the shop and at field test sites. Optical engineers and their customers continue to gain confidence in their abilities to perform several operations such as assure component quality, analyze and optimize lens assemblies, and accurately predict end-item performance. In this paper, a set of typical test situations are addressed and some standard instrumentation is described, as a means of illustrating the special advantages of interferometric testing. Emphasis will be placed on the proper application of currently available hardware and some of the latest proven techniques.
The James Webb Space Telescope: Capabilities for Exoplanet Science
NASA Technical Reports Server (NTRS)
Clampin, Mark
2011-01-01
The James Webb Space Telescope (JWST) is a large aperture (6.5 meter), cryogenic space telescope with a suite of near and mid-infrared instruments covering the wavelength range of 0.6 micron to 28 micron. JWST's primary science goal is to detect and characterize the first galaxies. It will also study the assembly of galaxies, stellar and planetary system formation, and the formation and evolution of planetary systems. We will review the design of JWST, and discuss the current status of the project, with emphasis on recent progress in the construction of the observatory. We also review the capabilities of the observatory for observations of exosolar planets and debris disks by means of coronagraphic imaging, and high contrast imaging and spectroscopy. This discussion will focus on the optical and thermal performance of the observatory, and will include the current predictions for the performance of the observatory, with special reference to the demands of exoplanet science observations.
Molecular evolution of the vertebrate mechanosensory cell and ear.
Fritzsch, Bernd; Beisel, Kirk W; Pauley, Sarah; Soukup, Garrett
2007-01-01
The molecular basis of mechanosensation, mechanosensory cell development and mechanosensory organ development is reviewed with an emphasis on its evolution. In contrast to eye evolution and development, which apparently modified a genetic program through intercalation of genes between the master control genes on the top (Pax6, Eya1, Six1) of the hierarchy and the structural genes (rhodopsin) at the bottom, the as yet molecularly unknown mechanosensory channel precludes such a firm conclusion for mechanosensors. However, recent years have seen the identification of several structural genes which are involved in mechanosensory tethering and several transcription factors controlling mechanosensory cell and organ development; these warrant the interpretation of available data in very much the same fashion as for eye evolution: molecular homology combined with potential morphological parallelism. This assertion of molecular homology is strongly supported by recent findings of a highly conserved set of microRNAs that appear to be associated with mechanosensory cell development across phyla. The conservation of transcription factors and their regulators fits very well to the known or presumed mechanosensory specializations which can be mostly grouped as variations of a common cellular theme. Given the widespread distribution of the molecular ability to form mechanosensory cells, it comes as no surprise that structurally different mechanosensory organs evolved in different phyla, presenting a variation of a common theme specified by a conserved set of transcription factors in their cellular development. Within vertebrates and arthropods, some mechanosensory organs evolved into auditory organs, greatly increasing sensitivity to sound through modifications of accessory structures to direct sound to the specific sensory epithelia. However, while great attention has been paid to the evolution of these accessory structures in vertebrate fossils, comparatively less attention has been spent on the evolution of the inner ear and the central auditory system. Recent advances in our molecular understanding of ear and brain development provide novel avenues to this neglected aspect of auditory neurosensory evolution.
Time-dependent quantum oscillator as attenuator and amplifier: noise and statistical evolutions
NASA Astrophysics Data System (ADS)
Portes, D.; Rodrigues, H.; Duarte, S. B.; Baseia, B.
2004-10-01
We revisit the quantum oscillator, modelled as a time-dependent LC-circuit. Nonclassical properties concerned with attenuation and amplification regions are considered, as well as time evolution of quantum noise and statistics, with emphasis on revivals of the statistical distribution.
Investigation of the laser engineered net shaping process for nanostructured cermets
NASA Astrophysics Data System (ADS)
Xiong, Yuhong
Laser Engineered Net Shaping (LENSRTM) is a solid freeform fabrication (SFF) technology that combines high power laser deposition and powder metallurgy technologies. The LENSRTM technology has been used to fabricate a number of metallic alloys with improved physical and mechanical material properties. The successful application provides a motivation to also apply this method to fabricate non-metallic alloys, such as tungsten carbide-cobalt (WC-Co) cermets in a timely and easy way. However, reports on this topic are very limited. In this work, the LENSRTM technology was used to investigate its application to nanostructured WC-Co cermets, including processing conditions, microstructural evolution, thermal behavior, mechanical properties, and environmental and economic benefits. Details of the approaches are described as follows. A comprehensive analysis of the relationships between process parameters, microstructural evolution and mechanical properties was conducted through various analytical techniques. Effects of process parameters on sample profiles and microstructures were analyzed. Dissolution, shape change and coarsening of WC particles were investigated to study the mechanisms of microstructural evolution. The thermal features were correlated with the microstructure and mechanical properties. The special thermal behavior during this process and its relevant effects on the microstructure have been experimentally studied and numerically simulated. A high-speed digital camera was applied to study the temperature profile, temperature gradient and cooling rate in and near the molten pool. Numerical modeling was employed for 3D samples using finite element method with ADINA software for the first time. The validated modeling results were used to interpret microstructural evolution and thermal history. In order to fully evaluate the capability of the LENSRTM technology for the fabrication of cermets, material properties of WC-Co cermets produced by different powder metallurgy technologies were compared. In addition, another cermet system, nanostructured titanium/tungsten carbide-nickel ((Ti,W)C-Ni) powder, prepared using high-energy ball milling process, was also deposited by the LENSRTM technology. Because of the near net shape feature of the LENSRTM process, special emphasis was also placed on its potential environmental and economic benefits by applying life cycle assessment (LCA) and technical cost modeling (TCM). Comparisons were conducted between the conventional powder metallurgy processes and the LENSRTM process.
Cultural, Socio-Economic and Political Influences on Special Education in Nigeria.
ERIC Educational Resources Information Center
Obiakor, Festus E.
The paper describes the present state of education in Nigeria with emphasis on the cultural, socio-economic, and political influences affecting special education. After a brief summary of education in Nigeria since independence (1960), the paper looks at problems identified in special education and at Section 8, that portion of the National Policy…
"Special Educational Needs" of the Elderly: A Trap for the Unwary? Research Study.
ERIC Educational Resources Information Center
Ageing International, 1989
1989-01-01
A British study of mainstreamed and special needs classes for older adults found that the special education approach encourages a narrow perspective of aging and an emphasis on disability. At Simon Fraser University, a certificate program for senior citizens determined that seniors like age-integrated classes and instructors need training in…
Boxed In: An Explanation for the Growth of Special Education.
ERIC Educational Resources Information Center
Ruediger, Greg; Lorance, Anne Gates
Noting that the number of students served in special education programs has increased at alarming rates since 1975, this paper posits that this increase is due to recent social and political variables and their impact on the educational system. Special emphasis is placed on how state and local educational leaders respond to national education…
Guide to Special Information in Scientific and Engineering Journals.
ERIC Educational Resources Information Center
Harris, Mary Elizabeth
This update of a 1983 annotated bibliography lists 298 special features or special issues of science and technology periodicals with emphasis on compilations of information that appear in periodicals on a regular basis. In addition to the 203 entries listed in the original edition, 95 new entries are included. Subjects covered in the guide include…
78 FR 8156 - National Cancer Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-05
... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Cancer Institute... personal privacy. Name of Committee: National Cancer Institute Special Emphasis Panel; Companion... Review Officer, Special Review and Logistics Branch, Division of Extramural Activities, National Cancer...
NASA Astrophysics Data System (ADS)
Yang, Jianhua; Lu, Wenbo; Hu, Yingguo; Chen, Ming; Yan, Peng
2015-09-01
Presence of an excavation damage zone (EDZ) around a tunnel perimeter is of significant concern with regard to safety, stability, costs and overall performance of the tunnel. For deep-buried tunnel excavation by drill and blast, it is generally accepted that a combination of effects of stress redistribution and blasting is mainly responsible for development of the EDZ. However, few open literatures can be found to use numerical methods to investigate the behavior of rock damage induced by the combined effects, and it is still far from full understanding how, when and to what degree the blasting affects the behavior of the EDZ during excavation. By implementing a statistical damage evolution law based on stress criterion into the commercial software LS-DYNA through its user-subroutines, this paper presents a 3D numerical simulation of the rock damage evolution of a deep-buried tunnel excavation, with a special emphasis on the combined effects of the stress redistribution of surrounding rock masses and the blasting-induced damage. Influence of repeated blast loadings on the damage extension for practical millisecond delay blasting is investigated in the present analysis. Accompanying explosive detonation and secession of rock fragments from their initial locations, in situ stress in the immediate vicinity of the excavation face is suddenly released. The transient characteristics of the in situ stress release and induced dynamic responses in the surrounding rock masses are also highlighted. From the simulation results, some instructive conclusions are drawn with respect to the rock damage mechanism and evolution during deep-buried tunnel excavation by drill and blast.
75 FR 16489 - National Institute on Aging; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-04-01
... Emphasis Panel; Adiposity, Aging, and Stem Cells. Date: June 23, 2010. Time: 1 p.m. to 5 p.m. Agenda: To... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Institute on Aging... personal privacy. Name of Committee: National Institute on Aging Special Emphasis Panel; Effect of Energy...
ERIC Educational Resources Information Center
Nerland, Monika; Karseth, Berit
2015-01-01
This paper examines how professional associations engage themselves in efforts to develop, regulate and secure knowledge in their respective domains, with special emphasis on standardisation. The general emphasis on science in society brings renewed attention to the knowledge base of professionals, and positions professional bodies as key…
75 FR 66113 - National Institute of Mental Health; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-10-27
... Emphasis Panel; NRSA Institutional Research Training (T32). Date: November 17, 2010. Time: 8 a.m. to 5 p.m... Institute of Mental Health Special Emphasis Panel; Novel NeuroAIDS Therapeutics. Date: November 22, 2010... Research Service Awards for Research Training, National Institutes of Health, HHS) Dated: October 20, 2010...
77 FR 24970 - National Institute of Mental Health; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-04-26
... Emphasis Panel; Fast Fail--Experimental Medicines Contracts--Mood and Anxiety Disorders. Date: May 22, 2012... Institute of Mental Health Special Emphasis Panel; Fast Fail--Experimental Medicines Contracts--Autism. Date...-- Psychotic Spectrum. Date: May 25, 2012. Time: 1 p.m. to 6 p.m. Agenda: To review and evaluate contract...
Women's Participation in the Greek Educational System.
ERIC Educational Resources Information Center
Polydorides, Georgia
The evolution of women's participation in the Greek educational system during the last 20 years is considered, with emphasis on present developments. The pattern of this evolution along with educational policy measures and reforms are also discussed. Factors related to women's achievement patterns and mobility between educational levels are also…
Apollo experience report: Evolution of the attitude time line
NASA Technical Reports Server (NTRS)
Duncan, R. D.
1973-01-01
The evolution of the attitude time line is discussed. Emphasis is placed on the operational need for and constraints on the time line and on how these factors were involved in the time line generation procedure. Examples of constraints on and applications of the complete time line are given.
Darwin's Missing Link--A Novel Paradigm for Evolution Education
ERIC Educational Resources Information Center
Catley, Kefyn M.
2006-01-01
Microevolutionary mechanisms are taught almost exclusively in our schools, to the detriment of those mechanisms that allow us to understand the larger picture--macroevolution. The results are demonstrable; as a result of the strong emphasis on micro processes in evolution education, students and teachers still have poor understanding of the…
ERIC Educational Resources Information Center
Green, Joseph David
2011-01-01
Researchers have focused their attention on the subject of special education teacher attrition for many years. While these researchers have made valuable findings, the need to abate the staggering numbers of special education teachers who leave the field still exists. Districts desiring to retain their teachers must place greater emphasis on the…
The resolved history of galaxy evolution.
Brinchmann, Jarle
2002-12-15
We briefly review the study of the evolution of galaxies from an observational point of view, with particular emphasis on the role of the Hubble Space Telescope in probing the evolution of the different morphological types of galaxy. We show how using the stellar mass of galaxies as a tracer of evolution can improve our understanding of the physical process taking place before turning our eyes towards the future and giving an overview of what we can expect from future advances in technology.
ERIC Educational Resources Information Center
Cerna, Marie
1987-01-01
The structure of the Czechoslovak system of preservice and inservice teacher education introduced by Education Act No. 29 of 1984 is described. The preparation of special education teachers is given particular emphasis. (Author/MT)
Teacher Training in Curative Education.
ERIC Educational Resources Information Center
Juul, Kristen D.; Maier, Manfred
1992-01-01
This article considers the application of the philosophical and educational principles of Rudolf Steiner, called "anthroposophy," to the training of teachers and curative educators in the Waldorf schools. Special emphasis is on the Camphill movement which focuses on therapeutic schools and communities for children with special needs. (DB)
ERIC Educational Resources Information Center
McLean, Gary N.
1993-01-01
Principles of quality management applicable to education for secondary special populations include process orientation, cascading, top commitment, vertical/horizontal communication, continuous improvement, shared vision, primacy of customers, investment in people, constancy of purpose, and shared goal setting. (JOW)
Kamath, Ambika; Losos, Jonathan B
2017-03-01
Ecological specialization is common across all levels of biological organization, raising the question of whether the evolution of specialization at one scale in a taxon is linked to specialization at other scales. Anolis lizards have diversified repeatedly along axes of habitat use, but it remains unknown if this diversification into habitat use specialists is underlain by individual specialization. From repeated observations of individuals in a population of Anolis sagrei in Florida, we show that the extent of habitat use specialization among individuals is comparable to the extent of specialization in the same traits among ten sympatric Anolis habitat specialist species in Cuba. However, the adaptive correlations between habitat use and morphology commonly seen across species of Anolis were not observed across individuals in the sampled population. Our results therefore suggest that while patterns of ecological specialization can transcend scale, these parallels are the consequence of distinct ecological processes acting at microevolutionary and macroevolutionary scales. © 2016 The Author(s). Evolution © 2016 The Society for the Study of Evolution.
75 FR 19983 - National Heart, Lung, and Blood Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-04-16
... Cardiovascular Conditions (GenTAC). Date: May 12, 2010. Time: 10 a.m. to 1 p.m. Agenda: To review and evaluate... Emphasis Panel, NHLBI Cardiovascular Outcomes Research Coordinating Unit. Date: May 25, 2010. Time: 8 a.m... Blood Institute Special Emphasis Panel, NHLBI Centers for Cardiovascular Outcomes Research. Date: May 25...
Barger, Nicole; Stefanacci, Lisa; Schumann, Cynthia M; Sherwood, Chet C; Annese, Jacopo; Allman, John M; Buckwalter, Joseph A; Hof, Patrick R; Semendeferi, Katerina
2012-09-01
In human and nonhuman primates, the amygdala is known to play critical roles in emotional and social behavior. Anatomically, individual amygdaloid nuclei are connected with many neural systems that are either differentially expanded or conserved over the course of primate evolution. To address amygdala evolution in humans and our closest living relatives, the apes, we used design-based stereological methods to obtain neuron counts for the amygdala and each of four major amygdaloid nuclei (the lateral, basal, accessory basal, and central nuclei) in humans, all great ape species, lesser apes, and one monkey species. Our goal was to determine whether there were significant differences in the number or percent of neurons distributed to individual nuclei among species. Additionally, regression analyses were performed on independent contrast data to determine whether any individual species deviated from allometric trends. There were two major findings. In humans, the lateral nucleus contained the highest number of neurons in the amygdala, whereas in apes the basal nucleus contained the highest number of neurons. Additionally, the human lateral nucleus contained 59% more neurons than predicted by allometric regressions on nonhuman primate data. Based on the largest sample ever analyzed in a comparative study of the hominoid amygdala, our findings suggest that an emphasis on the lateral nucleus is the main characteristic of amygdala specialization over the course of human evolution. Copyright © 2012 Wiley Periodicals, Inc.
NASA Technical Reports Server (NTRS)
Weinberg, Aaron
1989-01-01
The Tracking and Data Relay Satellite System (TDRSS) is an integral part of the overall NASA Space Network (SN) that will continue to evolve into the 1990's. Projections for the first decade of the 21st century indicate the need for an SN evolution that must accommodate growth int he LEO user population and must further support the introduction of new/improved user services. A central ingredient of this evolution is an Advanced TDRSS (ATDRSS) follow-on to the current TDRSS that must initiate operations by the late 1990's in a manner that permits an orderly transition from the TDRSS to the ATDRSS era. An SN/ATDRSS architectural and operational concept that will satisfy the above goals is being developed. To this date, an SN/ATDRSS baseline concept was established that provides users with an end-to-end data transport (ENDAT) service. An expanded description of the baseline ENDAT concept, from the user perspective, is provided with special emphasis on the TDRSS/ATDRSS evolution. A high-level description of the end-to-end system that identifies the role of ATDRSS is presented; also included is a description of the baseline ATDRSS architecture and its relationship with the TDRSS 1996 baseline. Other key features of the ENDAT service are then expanded upon, including the multiple grades of service, and the RF telecommunications/tracking services to be available. The ATDRSS service options are described.
NASA Astrophysics Data System (ADS)
Schmidtchen, M.; Rimnac, A.; Warczok, P.; Kozeschnik, E.; Bernhard, C.; Bragin, S.; Kawalla, R.; Linzer, B.
2016-03-01
The newly developed LaySiMS simulation tool provides new insight for inhomogeneous material flow and microstructure evolution in an endless strip production (ESP) plant. A deepened understanding of the influence of inhomogeneities in initial material state, temperature profile and material flow and their impact on the finished product can be reached e.g. by allowing for variable layer thickness distributions in the roll gap. Coupling temperature, deformation work and work hardening/recrystallization phenomena accounts for covering important effects in the roll gap. The underlying concept of the LaySiMS approach will be outlined and new insight gained regarding microstructural evolution, shear and inhomogeneous stress and strain states in the roll gap as well as local residual stresses will be presented. For the case of thin slab casting and direct rolling (TSDR) the interrelation of inhomogeneous initial state, micro structure evolution and dissolution state of micro alloying elements within the roughing section of an ESP line will be discussed. Special emphasis is put on the influence of the local chemical composition arising from direct charging on throughthickness homogeneity of the final product. It is concluded that, due to the specific combination of large reductions in the high reduction mills (HRM) and the highly inhomogeneous inverse temperature profile, the ESP-concept provides great opportunities for homogenizing the microstructure across the strip thickness.
77 FR 24969 - National Cancer Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-04-26
... Special Emphasis Panel; SPORE in Breast, Prostate and Thyroid Cancers. Date: May 23-24, 2012. Time: 8 a.m... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health National Cancer Institute... clearly unwarranted invasion of personal privacy. Name of Committee: National Cancer Institute Special...
77 FR 5259 - Center for Scientific Review; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-02-02
... Methodologies Integrated Review Group; Biostatistical Methods and Research Design Study Section. Date: March 2... Special Emphasis Panel; RFA-OD11-003: Specialized Centers of Research (SCOR) on Sex Differences. [email protected] . (Catalogue of Federal Domestic Assistance Program Nos. 93.306, Comparative Medicine; 93...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-04-01
... announced below concerns Attitudes Towards Cognitive Health, Cognitive Impairment, and Caregiving--Identifying Attitude Questions and Measures for Public Health Practice, Special Interest Project (SIP)13-071... review, discussion, and evaluation of ``Attitudes Towards Cognitive Health, Cognitive Impairment, and...
On the Special Problems in Creating Group Cohesion Within the Prison Setting.
ERIC Educational Resources Information Center
Juda, Daniel P.
1983-01-01
Describes attempts to form a communication group among male and female inmates. The failure of this effort is discussed with emphasis on the special problems and needs of groups in prisons and the lack of insight among the institution's administration and staff. (JAC)
ERIC Educational Resources Information Center
Comptroller General of the U.S., Washington, DC.
Many handicapped Indian children in Bureau of Indian Affairs (BIA) schools are not receiving the benefits of special education services due to problems caused by poor leadership and a lack of emphasis on the program. Because of the late and incomplete evaluation of students, too few special education teachers have been hired, and funds that should…
ERIC Educational Resources Information Center
Council of the Great City Schools, 2009
2009-01-01
This report presents the Council of the Great City Schools' findings and recommendations for improving the general education intervention and special education services of the Boston Public Schools. The report places special emphasis how the instructional program serves students with disabilities districtwide. The process that the Council used to…
NASA Technical Reports Server (NTRS)
1979-01-01
Topics covered include growth options evaluation, mass properties, attitude control and structural dynamics, contamination evaluation, berthing concepts, orbit reboost options and growth kit concepts. Systems support elements and space support equipment are reviewed with emphasis on power module operations and technology planning.
The Evolution and Validity of Health-Related Fitness
ERIC Educational Resources Information Center
Jackson, Andrew
2006-01-01
This paper traces the evolution fitness testing from an athletic emphasis to one with a public health focus and examines the forces that brought about the change in an environment that was not totally receptive. An atmosphere for change was created during this era with the development of exercise physiology, exercise epidemiology, and measurement.…
Evolution of specialization in resource utilization in structured metapopulations.
Nurmi, Tuomas; Geritz, Stefan; Parvinen, Kalle; Gyllenberg, Mats
2008-07-01
We study the evolution of resource utilization in a structured discrete-time metapopulation model with an infinite number of patches, prone to local catastrophes. The consumer faces a trade-off in the abilities to consume two resources available in different amounts in each patch. We analyse how the evolution of specialization in the utilization of the resources is affected by different ecological factors: migration, local growth, local catastrophes, forms of the trade-off and distribution of the resources in the patches. Our modelling approach offers a natural way to include more than two patch types into the models. This has not been usually possible in the previous spatially heterogeneous models focusing on the evolution of specialization.
Evolution in Clinical Knowledge Management Strategy at Intermountain Healthcare
Hulse, Nathan C.; Galland, Joel; Borsato, Emerson P.
2012-01-01
In this manuscript, we present an overview of the clinical knowledge management strategy at Intermountain Healthcare in support of our electronic medical record systems. Intermountain first initiated efforts in developing a centralized enterprise knowledge repository in 2001. Applications developed, areas of emphasis served, and key areas of focus are presented. We also detail historical and current areas of emphasis, in response to business needs. PMID:23304309
High School Programs for Students with Special Needs.
ERIC Educational Resources Information Center
Lieman, Meyer, Ed.
1980-01-01
Thirteen brief articles look at high school programs for students with special needs with emphasis on programs offered in New York State. Articles have the following titles and authors: "Vocational Education for Handicapped Students in New York City High Schools" (F. Yauch); "Development of a Comprehensive Program for High School…
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-03
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease... announced below concerns Special Interest Project (SIP): Evaluation of School Salad Bars as a Public Health...), the Centers for Disease Control and Prevention (CDC) announces the aforementioned meeting: Time and...
The "New" Competition: Serving the Learning Society in an Electronic Age.
ERIC Educational Resources Information Center
El-Khawas, Elaine
1999-01-01
Examines the changing environment for serving adult learners, with special attention to new modes of delivering instruction: distance education; use of information technology; emphasis on convenience; focus on special markets; and emergence of large-scale, profit-driven enterprises. Argues that, to develop an effective response, universities must…
Modern Special Collections Cataloguing: A University of London Case Study
ERIC Educational Resources Information Center
Attar, K. E.
2013-01-01
Recent years have seen a growing emphasis on modern special collections (in themselves no new phenomenon), with a dichotomy between guidance for detailed cataloguing in "Descriptive Cataloging of Rare Materials (Books)" (DCRM(B), 2007) and the value of clearing cataloguing backlogs expeditiously. This article describes the De la Mare…
75 FR 7489 - National Cancer Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-02-19
... review and evaluate grant applications. Place: Legacy Hotel and Meeting Center, 1775 Rockville Pike, Rockville, MD 20852. Contact Person: Lalita D. Palekar, PhD, Scientific Review Officer, Special Review and... Institute Special Emphasis Panel; NCI Cancer Nanotechnology Training (R25) and Career Development Award (K99...
Toward a Comprehensive Rural Development Policy.
ERIC Educational Resources Information Center
Knutson, Ronald D.; And Others
Rural development is broader than just agriculture. Farm policy cannot solve rural community problems. Rural problems are sufficiently unique to require special emphasis and special programs. Since rural development has a broader focus than the local community, its problems need to be addressed by all levels of government as well as the private…
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-03
... announced below concerns Special Interest Projects (SIPs): Nutrition and Obesity Policy Research and Evaluation Network (NOPREN)--Coordinating Center, SIP12-061 and Nutrition and Obesity Policy Research and... received in response to ``Nutrition and Obesity Policy Research and Evaluation Network (NOPREN...
78 FR 13364 - National Institute of General Medical Sciences; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-27
... Committee: National Institute of General Medical Sciences Special Emphasis Panel; Systems Biology Grant... Program Nos. 93.375, Minority Biomedical Research Support; 93.821, Cell Biology and Biophysics Research... Developmental Biology Research; 93.88, Minority Access to Research Careers; 93.96, Special Minority Initiatives...
Opinion on Recent Developments and the Future of Special Education
ERIC Educational Resources Information Center
Kauffman, James M.
2015-01-01
Three encouraging trends in special education are greater focus on instruction, emphasis on positive approaches to problem behavior, and greater reliance on scientific evidence. Next steps involving instruction should include research on modifications of instruction needed to accommodate learners with disabilities and on the place in which these…
76 FR 22715 - National Institute on Drug Abuse; Notice of Closed Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-22
... personal privacy. Name of Committee: National Institute on Drug Abuse Special Emphasis Panel; NIDA Blending..., Training and Special Projects Review Branch, Office of Extramural Affairs, National Institute on Drug Abuse... Assistance Program Nos.: 93.279, Drug Abuse and Addiction Research Programs, National Institutes of Health...
75 FR 36429 - National Institute on Drug Abuse; Notice of Closed Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-25
... personal privacy. Name of Committee: National Institute on Drug Abuse Special Emphasis Panel, Medications..., National Institute on Drug Abuse, NIH, DHHS, Room 220, MSC 8401, 6101 Executive Blvd., Bethesda, MD 20892. 301-451-3086. [email protected] . Name of Committee: National Institute on Drug Abuse Special...
Humboldt's Legacy and the Restoration of Science.
ERIC Educational Resources Information Center
Sachs, Aaron
1995-01-01
Examines issues related to specialization in science in the context of the work of Alexander Von Humboldt, one of the first popular scientists in the 19th century and Charles Darwin's mentor. Chronicles the impacts of a science dominated by specialization and argues for increased emphasis on interdisciplinary environmental study. (LZ)
76 FR 13196 - National Institute of General Medical Sciences; Notice of Closed Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-03-10
... Nos. 93.375, Minority Biomedical Research Support; 93.821, Cell Biology and Biophysics Research; 93... Biology Research; 93.88, Minority Access to Research Careers; 93.96, Special Minority Initiatives... Sciences Special Emphasis Panel, Research Centers in Trauma, Burn and Perioperative Injury. Date: April 8...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-04-01
... DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention Disease... announced below concerns Development of an Evidenced-- Informed Mall Walking Program Resource Guide, Special... review, discussion, and evaluation of ``Development of an Evidenced--Informed Mall Walking Program...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Mueller, A.H.
1997-06-01
After a brief review of the kinematics of deep inelastic lepton-proton scattering, the parton model is described. Small-x behavior coming from DGLAP evolution and from BFKL evolution is discussed, and the two types of evolution are contrasted and compared. Then a more detailed discussion of BFKL dynamics is given. The phenomenology of small-x physics is discussed with an emphasis on ways in which BFKL dynamics may be discussed and measured. 45 refs., 12 figs.
76 FR 29772 - National Human Genome Research Institute; Notice of Closed Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-05-23
... Institute Special Emphasis Panel; ELSI-SEP. Date: June 21, 2011. Time: 8 a.m. to 5:30 p.m. Agenda: To review... Emphasis Panel; Data Analysis-SEP. Date: June 27, 2011. Time: 8 a.m. to 5:30 p.m. Agenda: To review and evaluate grant applications. Place: Courtyard Arlington Crystal City/Reagan National Airport, 2899...
G. R., Jr. Trimble
1973-01-01
This report is an attempt to integrate and summarize research results from studies made mostly in West Virginia and to show the relationship of site quality and cutting practices to hardwood reproduction, with special emphasis on species composition. Reproduction has been found satisfactory in numbers and distribution after both clearcutting and selection cutting, but...
Hassanin, Alexandre
2015-07-01
In this report, I review recent molecular studies dealing with the origin and evolution of polar bears (Ursus maritimus), with special emphasis on their relationships with brown bears (U. arctos). On the basis of mitochondrial and nuclear data, different hypotheses have been proposed, including rapid morphological differentiation of U. maritimus, genetic introgression from U. arctos into U. maritimus, or inversely from U. maritimus into U. arctos, involving either male- or female-mediated gene flow. In the light of available molecular and eco-ethological data, I suggest, firstly, that all divergences among major clades of large bears can be linked to glacial periods, secondly, that polar bears diverged from brown bears before 530 thousand years ago (ka), during one of the three glacial marine isotope stages (MIS) 14, 15.2 or 16, and, thirdly, that genetic introgression had occurred from female polar bears into brown bear populations during at least two glacial periods, at 340 ± 10 ka (MIS 10) in western Europe, and at 155 ± 5 ka (MIS 6) on the ABC islands of southeastern Alaska, and probably also in Beringia and Ireland based on ancient DNA sequences. Copyright © 2015 Académie des sciences. Published by Elsevier SAS. All rights reserved.
Gas Evolution in Operating Lithium-Ion Batteries Studied In Situ by Neutron Imaging
Michalak, Barbara; Sommer, Heino; Mannes, David; Kaestner, Anders; Brezesinski, Torsten; Janek, Jürgen
2015-01-01
Gas generation as a result of electrolyte decomposition is one of the major issues of high-performance rechargeable batteries. Here, we report the direct observation of gassing in operating lithium-ion batteries using neutron imaging. This technique can be used to obtain qualitative as well as quantitative information by applying a new analysis approach. Special emphasis is placed on high voltage LiNi0.5Mn1.5O4/graphite pouch cells. Continuous gassing due to oxidation and reduction of electrolyte solvents is observed. To separate gas evolution reactions occurring on the anode from those associated with the cathode interface and to gain more insight into the gassing behavior of LiNi0.5Mn1.5O4/graphite cells, neutron experiments were also conducted systematically on other cathode/anode combinations, including LiFePO4/graphite, LiNi0.5Mn1.5O4/Li4Ti5O12 and LiFePO4/Li4Ti5O12. In addition, the data were supported by gas pressure measurements. The results suggest that metal dissolution in the electrolyte and decomposition products resulting from the high potentials adversely affect the gas generation, particularly in the first charge cycle (i.e., during graphite solid-electrolyte interface layer formation). PMID:26496823
Evolution of the diagnostic criteria for degenerative and cognitive disorders
Lopez, Oscar L.; McDade, Eric; Riverol, Mario; Becker, James T.
2012-01-01
Purpose of review This review describes the evolution of the clinical criteria for Alzheimer’s disease over the past 25 years, with special emphasis on those recently published that have incorporated the use of biomarkers. Recent findings One of the most important advances in the knowledge of Alzheimer’s disease was the development of cerebrospinal fluid, PET and MRI biomarkers. These have shown that the Alzheimer’s disease is present in cognitively normal individuals, suggesting that there is a long incubation process that precedes the onset of the symptoms. Although there are diagnostic criteria for Alzheimer’s disease, the National Institute on Aging and the Alzheimer’s Association has proposed a set of diagnostic criteria oriented to provide a unified vision of the pathological process from preclinical, to mild cognitive impairment, and to full-blown dementia. These new criteria take advantage of different biomarkers to support the clinical diagnosis of the different stages of the disease. Summary The new guidelines provide a definition of the dementia syndrome and core diagnostic features to be used in research and clinical practice, although they caution about the use of biomarkers, since they still require validation, and the longitudinal interaction and dynamics of these biomarkers in relationship to the manifestation of the symptoms are not fully understood. PMID:22071334
Satoh, Nori; Tagawa, Kuni; Takahashi, Hiroki
2012-01-01
More than 550 million years ago, chordates originated from a common ancestor shared with nonchordate deuterostomes by developing a novel type of larva, the "tadpole larva." The notochord is the supporting organ of the larval tail and the most prominent feature of chordates; indeed, phylum Chordata is named after this organ. In this review, we discuss the molecular mechanisms involved in the formation of the notochord over the course of chordate evolution with a special emphasis on a member of T-box gene family, Brachyury. Comparison of the decoded genome of a unicellular choanoflagellate with the genomes of sponge and cnidarians suggests that T-box gene family arose at the time of the evolution of multicellular animals. Gastrulation is a morphogenetic movement that is essential for the formation of two- or three-germ-layered embryos. Brachyury is transiently expressed in the blastopore (bp) region, where it confers on cells the ability to undergo invagination. This process is involved in the formation of the archenteron in all metazoans. This is a "primary" function of Brachyury. During the evolution of chordates, Brachyury gained an additional expression domain at the dorsal midline region of the bp. In this new expression domain, Brachyury served its "secondary" function, recruiting another set of target genes to form a dorsal axial organ, notochord. The Wnt/β-catenin, BMP/Nodal, and FGF-signaling pathways are involved in the transcriptional activation of Brachyury. We discuss the molecular mechanisms of Brachyury secondary function in the context of the dorsal-ventral (D-V) inversion theory and the aboral-dorsalization hypothesis. Although the scope of this review requires some degree of oversimplification of Brachyury function, it is beneficial to facilitate studies on the notochord formation, a central evolutionary developmental biology problem in the history of metazoan evolution, pointed out first by Alexander Kowalevsky. © 2012 Wiley Periodicals, Inc.
Photometric study of cometary analogs in the LOSSy laboratory at the University of Bern
NASA Astrophysics Data System (ADS)
Pommerol, A.; Thomas, N.; Jost, B.; Poch, O.
2014-07-01
We have set up the LOSSy laboratory (Laboratory for Outflow Studies of Sublimating Materials) to study the spectro-photometric properties of various analogs of planetary-object surfaces, with a special emphasis on icy samples and their evolution under simulated space conditions. This laboratory is currently equipped with two facilities: the PHIRE-2 radio-goniometer, designed to measure the bidirectional visible reflectance of samples under a wide range of geometries and the SCITEAS simulation chamber, designed to follow the evolution of icy samples subliming under low temperature and low pressure conditions by means of VIS-NIR hyperspectral imaging. We will report on the characterization of cometary analogs using both facilities. We produce these analogs by mixing in various proportions fine-grained ice, mineral and organic matter. Various preparation protocols have been defined to produce different textures of sample. Using the PHIRE-2 radio-goniometer, we are building a catalog of bidirectional reflectance data for various cometary analogs, varying by steps the different parameters susceptible to affect the reflectance phase function. In particular, we have recently upgraded the instrument to be able to characterize in detail the opposition effect by allowing measurements of the reflectance at very low phase angle. This laboratory dataset is intended to be used for the analysis of the data acquired by the OSIRIS imager onboard Rosetta. Using the SCITEAS simulation chamber, we have followed for 30 hours the evolution of a cometary analog placed under secondary vacuum (<10^{-6} mbar) and maintained at low temperature (170-200 K) for more than 30 hours. We analyzed the temporal evolution of the morphology and the photometry of the surface of the sample to identify which processes affect the surfaces of cometary nuclei during sublimation and how they affect their visible and near-infrared surface properties.
[Nematodirinae (Nematoda) from Ruminants and from lagomorpha. (author's transl)].
Durette-Desset, M C
1979-01-01
Study of eight species of Nematodirinae with special emphasis on their synlophe: Nematodirus filicollis (Rudolphi, 1802), N. spathiger (Railliet, 1896). N. helvetianus May, 1920, N. battus Crofton & Thomas, 1951, N. tortuosus Tucker, 1942, Nematodirella dromedarii (May, 1920), Nematodiroides zembrae (Bernard, 1965) and Rauschia triangularis, type species of the new genus Rauschia. Furthermore, bibliographical data permit to know the structure of the synlophe in four other species. In each of these species the synlophe retains the primitive bilateral symmetry observed in the Molineidae; in species parasitic in Ruminants and Rodents, the synlophe shows non pronounced size gradient, nor a pronounced peculiar orientation of the tip of the crests. These last specialized characters are observed, on the contrary, in species parasitic in Lagomorpha. These latter show, starting from synlophes of the "Anoplostrongylinae"-type, various evolutionary essays; the most remarkable is an hypertrophy of the dorsal crests which leads at the end of the evolution, to a dextral coiling, the back of the animal being inside the spire: such a position appears unique in the superfamily. Rauschia gen. nov. (type species: R. triangularis) is created for species previously pertaining to Nematodirus parasite of Lagomorpha, and in which the synlophe, very complex, differs from the synlophe of the parasite of Ruminants. A dichotomic key of the six genera of Nematodirinae is proposed.
Evolution of shuttle avionics redundancy management/fault tolerance
NASA Technical Reports Server (NTRS)
Boykin, J. C.; Thibodeau, J. R.; Schneider, H. E.
1985-01-01
The challenge of providing redundancy management (RM) and fault tolerance to meet the Shuttle Program requirements of fail operational/fail safe for the avionics systems was complicated by the critical program constraints of weight, cost, and schedule. The basic and sometimes false effectivity of less than pure RM designs is addressed. Evolution of the multiple input selection filter (the heart of the RM function) is discussed with emphasis on the subtle interactions of the flight control system that were found to be potentially catastrophic. Several other general RM development problems are discussed, with particular emphasis on the inertial measurement unit RM, indicative of the complexity of managing that three string system and its critical interfaces with the guidance and control systems.
ERIC Educational Resources Information Center
Baron, Georges-Louis
1989-01-01
Presents an overview of the evolution of ideas and achievements in the sphere of general secondary education. Emphasis is on the social aspects of the implementation of the various stages which were involved in the introduction and development of computer technology in educational systems in different countries. Both French and English versions…
ERIC Educational Resources Information Center
Nadelson, Louis S.; Southerland, Sherry A.
2010-01-01
The challenges in teaching and learning of biological evolution continue to be documented (NAS, 2008). Developers of science standards continue their work to increase emphasis on evolution. Although gains have been made, many K-12 science curricula focus on microevolution (i.e., natural selection, genetic drift), and a more limited effort is in…
Weng, Jing-Ke; Noel, Joseph P.
2013-01-01
Early plants began colonizing the terrestrial earth approximately 450 million years ago. Their success on land has been partially attributed to the evolution of specialized metabolic systems from core metabolic pathways, the former yielding structurally and functionally diverse chemicals to cope with a myriad of biotic and abiotic ecological pressures. Over the past two decades, functional genomics, primarily focused on flowering plants, has begun cataloging the biosynthetic players underpinning assorted classes of plant specialized metabolites. However, the molecular mechanisms enriching specialized metabolic pathways during land plant evolution remain largely unexplored. Selaginella is an extant lycopodiophyte genus representative of an ancient lineage of tracheophytes. Notably, the lycopodiophytes diverged from euphyllophytes over 400 million years ago. The recent completion of the whole-genome sequence of an extant lycopodiophyte, S. moellendorffii, provides new genomic and biochemical resources for studying metabolic evolution in vascular plants. 400 million years of independent evolution of lycopodiophytes and euphyllophytes resulted in numerous metabolic traits confined to each lineage. Surprisingly, a cadre of specialized metabolites, generally accepted to be restricted to seed plants, have been identified in Selaginella. Initial work suggested that Selaginella lacks obvious catalytic homologs known to be involved in the biosynthesis of well-studied specialized metabolites in seed plants. Therefore, these initial functional analyses suggest that the same chemical phenotypes arose independently more commonly than anticipated from our conventional understanding of the evolution of metabolism. Notably, the emergence of analogous and homologous catalytic machineries through convergent and parallel evolution, respectively, seems to have occurred repeatedly in different plant lineages. PMID:23717312
78 FR 64226 - Center for Scientific Review; Notice of Closed Meetings
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2013-10-28
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2012-03-02
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Inclusive Education in Korea: Policy, Practice, and Challenges
ERIC Educational Resources Information Center
Kim, Yong Wook
2013-01-01
Even though the Korean experience with special education in the public education system is limited, inclusive education for special education needs (SEN) students has been at the center of attention at the national policy level since the mid-1990s. Since then, Korean educators and administrators have put an emphasis on the revision and regulation…
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2013-04-01
..., Special Interest Project (SIP)13-067; and Feasibility Study of the New Clinical Measure of Colorectal... Determination of the Director, Management Analysis and Services Office, CDC, pursuant to Public Law 92-463... ``Understanding the Barriers to Colorectal Cancer Screening among Asian Subgroups, SIP13-067; and Feasibility...
Special Education Policy: A Retrospective and Future Prospective--A View from Saskatchewan.
ERIC Educational Resources Information Center
Dahl, Harry; Sanche, Robert
This paper reviews the history of special education in Saskatchewan (Canada) since the 1960s and proposes policy initiatives for future changes. Emphasis in the discussion is on trends and Canadian reports that led to Saskatchewan's 1971 passing of legislation mandating an "appropriate" free public education with procedural due process,…
76 FR 10038 - National Institute of General Medical Sciences; Notice of Closed Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-23
... Sciences Special Emphasis Panel, PSI Biology Meeting. Date: March 11, 2011. Time: 1 p.m. to 5 p.m. Agenda... Nos. 93.375, Minority Biomedical Research Support; 93.821, Cell Biology and Biophysics Research; 93... Biology Research; 93.88, Minority Access to Research Careers; 93.96, Special Minority Initiatives...
Public Services and Outreach in Rare Book, Manuscript, and Special Collections Libraries.
ERIC Educational Resources Information Center
Traister, Daniel
2003-01-01
Discusses the new emphasis in special collections, especially in academic libraries, on the promotion of materials. Highlights include the economic basis of promotion; exhibitions; classroom ventures; the Web; seminars and other discussion groups; creative writing courses; one-time events; friends, tourists, and the public; and reference services.…
78 FR 25460 - National Institute on Drug Abuse; Notice of Closed Meetings
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2010-01-20
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PROPOSED CURRICULUM PROGRAM FOR TEXAS MIGRATORY CHILDREN.
ERIC Educational Resources Information Center
Texas Education Agency, Austin.
A SPECIAL CURRICULUM IS ENVISIONED WHICH WOULD INCLUDE AN 8-HOUR SCHOOL DAY FOR 6 MONTHS OF THE YEAR. EMPHASIS WOULD BE PLACED ON ENGLISH, MATHEMATICS, AND SOCIAL STUDIES. STUDENT PROGRESS WOULD BE DETERMINED BY STANDARIZED TESTS, OR TESTS DESIGNED FOR THE SPECIAL CURRICULUM. GRADE PLACEMENT WOULD BE USED IN SOCIAL STUDIES, SCIENCE, PHYSICAL…
ERIC Educational Resources Information Center
Gersten, Russell; Marks, Susan Unok
1998-01-01
This cross-case analysis examined general education elementary-level teacher engagement with and effectiveness of "coaching," or expert consultation by special educators on effective teaching strategies. Factors resulting in high levels of impact on teaching and high levels of engagement were identified, including emphasis on conceptual…
Code of Federal Regulations, 2014 CFR
2014-07-01
... EEO Program, the establishment of Special Emphasis Programs (SEPs) entitled the Federal Women's...), the Asian/Pacific Islander Employment Program (AEP), the American Indian/Alaskan Native Employment...
Code of Federal Regulations, 2012 CFR
2012-07-01
... EEO Program, the establishment of Special Emphasis Programs (SEPs) entitled the Federal Women's...), the Asian/Pacific Islander Employment Program (AEP), the American Indian/Alaskan Native Employment...
Code of Federal Regulations, 2013 CFR
2013-07-01
... EEO Program, the establishment of Special Emphasis Programs (SEPs) entitled the Federal Women's...), the Asian/Pacific Islander Employment Program (AEP), the American Indian/Alaskan Native Employment...
2013-01-01
Background The arylamine N-acetyltransferases (NATs) are a unique family of enzymes widely distributed in nature that play a crucial role in the detoxification of aromatic amine xenobiotics. Considering the temporal changes in the levels and toxicity of environmentally available chemicals, the metabolic function of NATs is likely to be under adaptive evolution to broaden or change substrate specificity over time, making NATs a promising subject for evolutionary analyses. In this study, we trace the molecular evolutionary history of the NAT gene family during the last ~450 million years of vertebrate evolution and define the likely role of gene duplication, gene conversion and positive selection in the evolutionary dynamics of this family. Results A phylogenetic analysis of 77 NAT sequences from 38 vertebrate species retrieved from public genomic databases shows that NATs are phylogenetically unstable genes, characterized by frequent gene duplications and losses even among closely related species, and that concerted evolution only played a minor role in the patterns of sequence divergence. Local signals of positive selection are detected in several lineages, probably reflecting response to changes in xenobiotic exposure. We then put a special emphasis on the study of the last ~85 million years of primate NAT evolution by determining the NAT homologous sequences in 13 additional primate species. Our phylogenetic analysis supports the view that the three human NAT genes emerged from a first duplication event in the common ancestor of Simiiformes, yielding NAT1 and an ancestral NAT gene which in turn, duplicated in the common ancestor of Catarrhini, giving rise to NAT2 and the NATP pseudogene. Our analysis suggests a main role of purifying selection in NAT1 protein evolution, whereas NAT2 was predicted to mostly evolve under positive selection to change its amino acid sequence over time. These findings are consistent with a differential role of the two human isoenzymes and support the involvement of NAT1 in endogenous metabolic pathways. Conclusions This study provides unequivocal evidence that the NAT gene family has evolved under a dynamic process of birth-and-death evolution in vertebrates, consistent with previous observations made in fungi. PMID:23497148
Rethinking the evolution of specialization: A model for the evolution of phenotypic heterogeneity.
Rubin, Ilan N; Doebeli, Michael
2017-12-21
Phenotypic heterogeneity refers to genetically identical individuals that express different phenotypes, even when in the same environment. Traditionally, "bet-hedging" in fluctuating environments is offered as the explanation for the evolution of phenotypic heterogeneity. However, there are an increasing number of examples of microbial populations that display phenotypic heterogeneity in stable environments. Here we present an evolutionary model of phenotypic heterogeneity of microbial metabolism and a resultant theory for the evolution of phenotypic versus genetic specialization. We use two-dimensional adaptive dynamics to track the evolution of the population phenotype distribution of the expression of two metabolic processes with a concave trade-off. Rather than assume a Gaussian phenotype distribution, we use a Beta distribution that is capable of describing genotypes that manifest as individuals with two distinct phenotypes. Doing so, we find that environmental variation is not a necessary condition for the evolution of phenotypic heterogeneity, which can evolve as a form of specialization in a stable environment. There are two competing pressures driving the evolution of specialization: directional selection toward the evolution of phenotypic heterogeneity and disruptive selection toward genetically determined specialists. Because of the lack of a singular point in the two-dimensional adaptive dynamics and the fact that directional selection is a first order process, while disruptive selection is of second order, the evolution of phenotypic heterogeneity dominates and often precludes speciation. We find that branching, and therefore genetic specialization, occurs mainly under two conditions: the presence of a cost to maintaining a high phenotypic variance or when the effect of mutations is large. A cost to high phenotypic variance dampens the strength of selection toward phenotypic heterogeneity and, when sufficiently large, introduces a singular point into the evolutionary dynamics, effectively guaranteeing eventual branching. Large mutations allow the second order disruptive selection to dominate the first order selection toward phenotypic heterogeneity. Copyright © 2017 Elsevier Ltd. All rights reserved.
Glyoxalase diversity in parasitic protists.
Deponte, Marcel
2014-04-01
Our current knowledge of the isomerase glyoxalase I and the thioesterase glyoxalase II is based on a variety of prokaryotic and eukaryotic (model) systems with an emphasis on human glyoxalases. During the last decade, important insights on glyoxalase catalysis and structure-function relationships have also been obtained from parasitic protists. These organisms, including kinetoplastid and apicomplexan parasites, are particularly interesting, both because of their relevance as pathogens and because of their phylogenetic diversity and host-parasite co-evolution which has led to specialized organellar and metabolic adaptations. Accordingly, the glyoxalase repertoire and properties vary significantly among parasitic protists of different major eukaryotic lineages (and even between closely related organisms). For example, several protists have an insular or non-canonical glyoxalase. Furthermore, the structures and the substrate specificities of glyoxalases display drastic variations. The aim of the present review is to highlight such differences as well as similarities between the glyoxalases of parasitic protists and to emphasize the power of comparative studies for gaining insights into fundamental principles and alternative glyoxalase functions.
Benelli, Giovanni
2014-12-30
True fruit flies (Diptera: Tephritidae) include over 4000 species, many of which constitute enormous threats to fruit and vegetable production worldwide. A number of Tephritidae are lekking species, forming aggregations in which males fight to defend a small territory where they court females and mate. Male-male contests also occur in non-lekking species, characterized by resource defense polygyny. Tephritidae females display agonistic behavior to maintain single oviposition sites and reduce larval competition for food. Here, how, where, when and why aggressive interactions occur in Tephritidae flies is reviewed. A number of neglected issues deserving further research are highlighted, with a special focus on diel periodicity of aggression, cues evoking aggressive behavior, the role of previous experience on fighting success and the evolution of behavioral lateralization of aggressive displays. In the final section, future directions to exploit this knowledge in Integrated Pest Management, with particular emphasis on enhancement of Sterile Insect Technique and interspecific competitive displacement in the field are suggested.
NASA Astrophysics Data System (ADS)
Mascetti, L.; Cano, E.; Chan, B.; Espinal, X.; Fiorot, A.; González Labrador, H.; Iven, J.; Lamanna, M.; Lo Presti, G.; Mościcki, JT; Peters, AJ; Ponce, S.; Rousseau, H.; van der Ster, D.
2015-12-01
CERN IT DSS operates the main storage resources for data taking and physics analysis mainly via three system: AFS, CASTOR and EOS. The total usable space available on disk for users is about 100 PB (with relative ratios 1:20:120). EOS actively uses the two CERN Tier0 centres (Meyrin and Wigner) with 50:50 ratio. IT DSS also provide sizeable on-demand resources for IT services most notably OpenStack and NFS-based clients: this is provided by a Ceph infrastructure (3 PB) and few proprietary servers (NetApp). We will describe our operational experience and recent changes to these systems with special emphasis to the present usages for LHC data taking, the convergence to commodity hardware (nodes with 200-TB each with optional SSD) shared across all services. We also describe our experience in coupling commodity and home-grown solution (e.g. CERNBox integration in EOS, Ceph disk pools for AFS, CASTOR and NFS) and finally the future evolution of these systems for WLCG and beyond.
Benelli, Giovanni
2014-01-01
True fruit flies (Diptera: Tephritidae) include over 4000 species, many of which constitute enormous threats to fruit and vegetable production worldwide. A number of Tephritidae are lekking species, forming aggregations in which males fight to defend a small territory where they court females and mate. Male-male contests also occur in non-lekking species, characterized by resource defense polygyny. Tephritidae females display agonistic behavior to maintain single oviposition sites and reduce larval competition for food. Here, how, where, when and why aggressive interactions occur in Tephritidae flies is reviewed. A number of neglected issues deserving further research are highlighted, with a special focus on diel periodicity of aggression, cues evoking aggressive behavior, the role of previous experience on fighting success and the evolution of behavioral lateralization of aggressive displays. In the final section, future directions to exploit this knowledge in Integrated Pest Management, with particular emphasis on enhancement of Sterile Insect Technique and interspecific competitive displacement in the field are suggested. PMID:26463064
Forini, Francesca; Nicolini, Giuseppina; Iervasi, Giorgio
2015-03-19
Ischemic heart disease is the major cause of mortality and morbidity worldwide. Early reperfusion after acute myocardial ischemia has reduced short-term mortality, but it is also responsible for additional myocardial damage, which in the long run favors adverse cardiac remodeling and heart failure evolution. A growing body of experimental and clinical evidence show that the mitochondrion is an essential end effector of ischemia/ reperfusion injury and a major trigger of cell death in the acute ischemic phase (up to 48-72 h after the insult), the subacute phase (from 72 h to 7-10 days) and chronic stage (from 10-14 days to one month after the insult). As such, in recent years scientific efforts have focused on mitochondria as a target for cardioprotective strategies in ischemic heart disease and cardiomyopathy. The present review discusses recent advances in this field, with special emphasis on the emerging role of the biologically active thyroid hormone triiodothyronine (T3).
Membrane Repair: Mechanisms and Pathophysiology
Cooper, Sandra T.; McNeil, Paul L.
2015-01-01
Eukaryotic cells have been confronted throughout their evolution with potentially lethal plasma membrane injuries, including those caused by osmotic stress, by infection from bacterial toxins and parasites, and by mechanical and ischemic stress. The wounded cell can survive if a rapid repair response is mounted that restores boundary integrity. Calcium has been identified as the key trigger to activate an effective membrane repair response that utilizes exocytosis and endocytosis to repair a membrane tear, or remove a membrane pore. We here review what is known about the cellular and molecular mechanisms of membrane repair, with particular emphasis on the relevance of repair as it relates to disease pathologies. Collective evidence reveals membrane repair employs primitive yet robust molecular machinery, such as vesicle fusion and contractile rings, processes evolutionarily honed for simplicity and success. Yet to be fully understood is whether core membrane repair machinery exists in all cells, or whether evolutionary adaptation has resulted in multiple compensatory repair pathways that specialize in different tissues and cells within our body. PMID:26336031
The organization and practice of East Asian medicine in Japan: continuity and change.
Lock, M
1980-11-01
The historical development, structure, and organization of traditional East Asian medicine are summarized as background for a discussion of the popular revival of traditional medicine in Japan. Despite evolution and development of traditional medical practice, continuity in attitudes toward medical theory, the concept of holism, and the demonstration of empathy is noted. The main changes have occurred in theories of disease causation and terminology. Revival of interest in East Asian medical systems is explained by a surge of nationalism following rapid social change in Japan, a new emphasis on ecological and cybernetic models, changes in the epidemiology of disease with chronic diseases assuming a more important role, and desire to avoid toxic drugs. Factionalism, competitition and innovation are encouraged by the structure of traditional medicine in Japan. Incorporation of traditional medicine into the organization of cosmopolitan medicine and application of the standards of science to it would probably result in the loss of its special features which are of value to patients.
NASA Astrophysics Data System (ADS)
Mishchenko, Michael I.; Liu, Li; Mackowski, Daniel W.
2013-07-01
We use state-of-the-art public-domain Fortran codes based on the T-matrix method to calculate orientation and ensemble averaged scattering matrix elements for a variety of morphologically complex black carbon (BC) and BC-containing aerosol particles, with a special emphasis on the linear depolarization ratio (LDR). We explain theoretically the quasi-Rayleigh LDR peak at side-scattering angles typical of low-density soot fractals and conclude that the measurement of this feature enables one to evaluate the compactness state of BC clusters and trace the evolution of low-density fluffy fractals into densely packed aggregates. We show that small backscattering LDRs measured with ground-based, airborne, and spaceborne lidars for fresh smoke generally agree with the values predicted theoretically for fluffy BC fractals and densely packed near-spheroidal BC aggregates. To reproduce higher lidar LDRs observed for aged smoke, one needs alternative particle models such as shape mixtures of BC spheroids or cylinders.
Statistics of gravitational lenses - The uncertainties
NASA Technical Reports Server (NTRS)
Mao, Shude
1991-01-01
The assumptions in the analysis of gravitational lensing statistics are examined. Special emphasis is given to the uncertainties in the theoretical predictions. It is shown that a simple redshift cutoff model, which may result from galaxy evolution, can significantly reduce the lensing probability and explain the large mean separation of images in observed gravitational lenses. This effect may affect the constraint on the contribution of the cosmological constant to producing a flat universe from the number counts of the observed lenses. For the Omega(0) = 1 (filled beam) model, the lensing probability of early-type galaxies with finite core radii is reduced roughly by a factor of 2 for high-redshift quasars as compared with the corresponding singular isothermal sphere model. The finite core radius effect is about 20 percent for a lambda-dominated flat universe. It is also shown that the most recent galaxy luminosity function gives lensing probabilities that are smaller than previously estimated roughly by a factor of 3.
NASA Technical Reports Server (NTRS)
Sugioka, I.; Widnall, S. E.
1985-01-01
The self induced evolution of a vortex sheet was simulated by modeling the sheet using an integration of discrete elements of vorticity. Replacing small sections of a vortex sheet by flat panels of constant vorticity is found to reproduce more accurately the initial conditions for the Lagrangian simulation technique than replacement by point vortices. The flat panel method for the vortex sheet was then extended to model axisymmetric vortex sheets. The local and far field velocities induced by the axisymmetric panels were obtained using matched asymptotic analysis, and some of the uncertainties involved in other models of the axisymmetric vortex sheet have been eliminated. One important result of this analysis is the determination of the proper choice of core size for a circular vortex filament which may replace a section of an axisymmetric vortex sheet. Roll-up of both two dimensional and axisymmetric vortex sheets was computed using the panel methods developed in the report.
NASA Technical Reports Server (NTRS)
Mishchenko, Michael I.; Liu, Li; Mackowski, Daniel W.
2013-01-01
We use state-of-the-art public-domain Fortran codes based on the T-matrix method to calculate orientation and ensemble averaged scattering matrix elements for a variety of morphologically complex black carbon (BC) and BC-containing aerosol particles, with a special emphasis on the linear depolarization ratio (LDR). We explain theoretically the quasi-Rayleigh LDR peak at side-scattering angles typical of low-density soot fractals and conclude that the measurement of this feature enables one to evaluate the compactness state of BC clusters and trace the evolution of low-density fluffy fractals into densely packed aggregates. We show that small backscattering LDRs measured with groundbased, airborne, and spaceborne lidars for fresh smoke generally agree with the values predicted theoretically for fluffy BC fractals and densely packed near-spheroidal BC aggregates. To reproduce higher lidar LDRs observed for aged smoke, one needs alternative particle models such as shape mixtures of BC spheroids or cylinders.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Drake, Harold
2001-07-26
The Gordon Research Conference on Applied and Environmental Microbiology was held at Connecticut College, New London, Connecticut, July 22-27, 2001. The conference was attended by 121 participants. The attendees represented the spectrum of endeavor in this field, coming from academia, industry, and government laboratories, and included US and foreign scientists, senior researchers, young investigators, and students. Emphasis was placed on current unpublished research and discussion of the future target areas in this field. There was a conscious effort to stimulate discussion about the key issues in the field today. Session topics included the following: Environmental and applied genomics, Cell-to-cell signalingmore » and multicellular behavior, Emerging technologies and methods, Novel metabolisms and ecosystems, Directed evolution of enzymes and pathways, Symbiotic and trophic relationships, Synthesis and application of novel biopolymers, and Microbes at the oxic-anoxic interface. There was also a special lecture titled ''Under the umbrella of the big tree: microbial biology into the 21st century.''« less
"And teach agony to sing": an afternoon with Eleanor Clarke Slagle.
Bing, R K
1997-03-01
Using published works, archival correspondence, interviews with contemporaries, and historical commentary, an imagined conversation is presented between Eleanor Clarke Slagle (1871-1942) and three of her actual contemporaries. As a founder of the National Society for the Promotion of Occupational Therapy (later to become the American Occupational Therapy Association [AOTA] and a past-president and executive secretary of AOTA for 21 years, Slagle came in contact with a host of therapists as well as men and women who influenced her and the occupational therapy profession, most particularly Julia Lathrop, Adolf Meyer, William Rush Dunton, Jr., and Ida Sands. Emphasis is placed on some of her early life experiences; Hull House; and the evolution of the occupational therapy belief system, including occupations, curative work, and spiritual rehabilitation (i.e., self-respect, interests, ambition, happiness, economic usefulness, success). Special attention was taken to reflect Slagle's typical use of language and the vernacular of the mid-1930s. Extensive study was undertaken, through reading Slagle's published works, to remain true to her use of language.
NASA Astrophysics Data System (ADS)
Tăcutu, Laurenţiu; Nastase, Ilinca; Iordache, Vlad; Catalina, Tiberiu; Croitoru, Cristiana Verona
2018-02-01
Nowadays, there is an increasing emphasis on indoor air quality due to technological evolution and the fact that people spend most of the time in enclosed spaces. Also, energy efficiency is another related factor that gains more and more attention. Improving air distribution in an enclosure can lead to achieve these goals. This improvement can be done by adjustingthe air terminals position, theredimensions or the air diffuser perforations. The paper presents the study of 8 types of panels with different perforations shapes. The systems were characterized by flow, pressure loss and noise. Usualand special geometries were chosen, all having the same flowsurface. The perforated panels were mounted in a unidirectional air flow (UAF)diffuser, also called a laminar air flow (LAF)diffuser, that is placed in a real scale operating room (OR) in our laboratory.The purpose of this study is to determine whether changing the shape in the perforated panels can improve the technical parameters of the diffuser.
Integration Of Heat Transfer Coefficient In Glass Forming Modeling With Special Interface Element
NASA Astrophysics Data System (ADS)
Moreau, P.; César de Sá, J.; Grégoire, S.; Lochegnies, D.
2007-05-01
Numerical modeling of the glass forming processes requires the accurate knowledge of the heat exchange between the glass and the forming tools. A laboratory testing is developed to determine the evolution of the heat transfer coefficient in different glass/mould contact conditions (contact pressure, temperature, lubrication…). In this paper, trials are performed to determine heat transfer coefficient evolutions in experimental conditions close to the industrial blow-and-blow process conditions. In parallel of this work, a special interface element is implemented in a commercial Finite Element code in order to deal with heat transfer between glass and mould for non-meshing meshes and evolutive contact. This special interface element, implemented by using user subroutines, permits to introduce the previous heat transfer coefficient evolutions in the numerical modelings at the glass/mould interface in function of the local temperatures, contact pressures, contact time and kind of lubrication. The blow-and-blow forming simulation of a perfume bottle is finally performed to assess the special interface element performance.
Evolution of magnetic cataclysmic binaries
NASA Technical Reports Server (NTRS)
Lamb, Don Q.; Melia, F.
1988-01-01
The evolution of magnetic cataclysmic binaries is reviewed, with emphasis on the synchronization process by which DQ Herculis stars become AM Herculis stars. The various mechanisms that are thought to drive the evolution of cataclysmic binaries are discussed, and the criterion for stream versus disk accretion, the physics of the accretion and synchronization torques, and the conditions required for synchronization are described. The different physical regimes to which magnetic cataclysmic binaries belong are summarized, and how synchronization may be achieved, and how it may be broken, are considered.
Code of Federal Regulations, 2010 CFR
2010-07-01
... Charter. (b) Consolidates in a single document provisions of Secretary of Defense Multiple Addressee... EEO Program, the establishment of Special Emphasis Programs (SEPs) entitled the Federal Women's...
Assessment of flying-quality criteria for air-breathing aerospacecraft
NASA Technical Reports Server (NTRS)
Mcruer, Duane T.; Myers, Thomas T.; Hoh, Roger H.; Ashkenas, Irving L.; Johnston, Donald E.
1992-01-01
A study of flying quality requirements for air breathing aerospacecraft gives special emphasis to the unusual operational requirements and characteristics of these aircraft, including operation at hypersonic speed. The report considers distinguishing characteristics of these vehicles, including dynamic deficiencies and their implications for control. Particular emphasis is given to the interaction of the airframe and propulsion system, and the requirements for dynamic systems integration. Past operational missions are reviewed to define tasks and maneuvers to be considered for this class of aircraft. Areas of special concern with respect to vehicle dynamics and control are identified. Experience with the space shuttle orbiter is reviewed with respect to flight control system mechanization and flight experience in approach and landing flying qualities for the National Aerospace Plane (NASP).
Vandervliet, Everhard J M; Vanhoenacker, Filip M; Snoeckx, Annemie; Gielen, Jan L; Van Dyck, Pieter; Parizel, Paul M
2007-01-01
Acute and chronic sports‐related muscle and tendon injuries are not infrequent in youngsters. In particular, the physis is prone to trauma as it constitutes the weakest part of the immature skeleton. The type of sports activity determines the location of the lesion. Most commonly, apophyses of the hip and pelvis are subject to avulsion. The purpose of this paper is to give a short overview of the pathogenesis, location, prevalence and imaging characteristics of acute and chronic avulsion injuries in the immature skeleton, with special emphasis on tennis‐related injuries. Tennis‐related injuries particularly involve apophyses of the ischial tuberosity, the anterior inferior or superior iliac spine and the iliac crest. PMID:17586583
Origin and evolution of the Saturn system
NASA Technical Reports Server (NTRS)
Pollack, J. B.; Consolmagno, G.
1983-01-01
A review is provided of current concepts concerning the formation of the Saturn system and the subsequent history of the planet, its satellites, and rings. Emphasis is placed upon numerical models of Saturn's evolution and interior models of its satellites. Alternative theories are presented and assessed for the origins of the Saturn system, the rings of Saturn, and the atmosphere of Titan.
ERIC Educational Resources Information Center
Moore, Randy
2007-01-01
In a sample of 107 biology teachers from Minnesota's public schools, most teachers claimed that they emphasize evolution and allocated little or no time to creationism in the classes. However, in a sample of 685 students from Minnesota's public schools, students claimed that their teachers allocated much less time to evolution and much more time…
Smocks and Jocks outside the Box: The Paradigmatic Evolution of Sport and Exercise Psychology
ERIC Educational Resources Information Center
Vealey, Robin S.
2006-01-01
The objective of this article is to describe the historical development of sport and exercise psychology, with a particular emphasis on the construction and evolution of the "box" through history. The box represents the dominant paradigm that serves as the model for research and application as it evolves through successive historical eras (Kuhn,…
NASA Astrophysics Data System (ADS)
Bilica, Kimberly Lynn
The teaching of biological evolution in public science classrooms has been mitigated by a lingering and historic climate of controversy (Skoog, 1984; Skoog, 1979). This controversy has successfully stalled attempts to bring authentic science literacy to the American public (Bybee, 1997). The first encouraging signs of the abatement of this controversy occurred during the early 1990s when several prominent science organizations promoted evolution to its appropriate status as a central and unifying concept in biology (National Science Teachers Association, 1992; National Research Council, 1996; American Association for the Advancement of Science, 1990, 1993). The organizations acknowledged that not only should biological evolution be taught, evolution should stand as one of a select group of essential concepts upon which biology curricula should be built. Bandura's Social Learning theory (Bandura, 1997; Lumpe, Haney, & Czerniak, 2000) and Helms' Model of Identity (Helms, 1998) provide the theoretical basis for this study. Both Bandura and Helms explain the actions of teachers by examining the beliefs and values that influence their decisions. The models distinguish between two types of belief systems: capacity beliefs and context beliefs (Lumpe, et al, 2000; Helms, 1998). Both belief types influence and are influenced by individual actions. In this study, the action to be described is the decision that teachers make about the degree of emphasis on evolution in the classroom. The capacity beliefs that will be examined are teachers' beliefs about their capability to teach evolution. The contextual beliefs in this study are perceptions about students' capabilities to learn evolution, the status of evolution in science, the place of evolution in the biology classroom, the influence of textbooks, time, and community/school values. This study contributes to and extends the knowledge base established by studies of evolution education by exploring the relative amount of emphasis that Texas biology teachers currently as well as prefer to place on fundamental evolution concepts in relationship to specific belief factors which influence biology teachers' curricular decisions.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Berger, H.J.; Zaret, B.L.
1981-10-01
A review of recent developments and future directions in nuclear cardiology is presented. Myocardial perfusion imaging is discussed with special emphasis on thallium-201 methods. Infarct-avid imaging is also discussed with emphasis on technetium-99m labelled in diagnosis, and emission computed tomography is briefly reviewed. In addition, new biologically based radiotracers such as indium-111-labeled blood cells, gallium-67 citrate, and new positron- and gamma-emittng radiotracers are reviewed.
Evolutionary genetics of insect innate immunity.
Viljakainen, Lumi
2015-11-01
Patterns of evolution in immune defense genes help to understand the evolutionary dynamics between hosts and pathogens. Multiple insect genomes have been sequenced, with many of them having annotated immune genes, which paves the way for a comparative genomic analysis of insect immunity. In this review, I summarize the current state of comparative and evolutionary genomics of insect innate immune defense. The focus is on the conserved and divergent components of immunity with an emphasis on gene family evolution and evolution at the sequence level; both population genetics and molecular evolution frameworks are considered. © The Author 2015. Published by Oxford University Press.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-19
... Diabetes and Digestive and Kidney and Diseases; Notice of Closed Meeting Pursuant to section 10(d) of the... Diabetes and Digestive and Kidney Diseases Special Emphasis Panel; RFA-DK-13-008 USRDS Special Study... Program Nos. 93.847, Diabetes, Endocrinology and Metabolic Research; 93.848, Digestive Diseases and...
The Essential Special Education Guide for the Regular Education Teacher
ERIC Educational Resources Information Center
Burns, Edward
2007-01-01
The Individuals with Disabilities Education Act (IDEA) of 2004 has placed a renewed emphasis on the importance of the regular classroom, the regular classroom teacher and the general curriculum as the primary focus of special education. This book contains over 100 topics that deal with real issues and concerns regarding the regular classroom and…
ERIC Educational Resources Information Center
1994
This paper presents a review of the literature on toy play in infancy and early childhood, with an emphasis on both normal development and special considerations for young children with disabilities. Specifically, it describes children's encounters with toys within a developmental framework, identifies characteristics of the child and aspects of…
Achieving Inclusion? Effective Resourcing of Students with Special Educational Needs
ERIC Educational Resources Information Center
Banks, Joanne; Frawley, Denise; McCoy, Selina
2015-01-01
In line with the increasing policy emphasis on inclusive education, there is now a greater focus on how best to provide for students special educational needs (SEN) in mainstream schools. However, there is little consensus internationally as to the most equitable way in which to support these students. Despite ongoing evaluations of the existing…
ERIC Educational Resources Information Center
Beddow-Beste, Jolaine
2012-01-01
Administrators, teachers, and paraprofessionals play an important role in successful outcomes for students with special needs. Post-secondary training does not guarantee that emphasis is put on how each professional entity maintains the ability to collaborate with one another, and how to determine what continued training is pertinent for each of…
ERIC Educational Resources Information Center
San Jose State Univ., CA.
This report discusses the activities and outcomes of Project Zenith, which was designed to recruit two cohorts of bilingual graduate students to complete a graduate program with specialized skills in the diagnosis and treatment of communicative disorders in multicultural populations in the public schools. Included in the specialized training is…
Philosophical Bases of Women in Sport.
ERIC Educational Resources Information Center
Oglesby, Carole A.
The special problems faced by black women in sports and in American society are discussed. Ways of bringing about change in social attitudes and in interaction between the races and the sexes are considered. Special emphasis is placed on the need to develop a sense of worth and an understanding of the basic social structures which breed racial and…
ERIC Educational Resources Information Center
Edwards, Nancy Joan
The development, current status, and future prospects of community colleges are examined in this study with special emphasis on finance and funding concerns. Introductory material outlines study objectives, methodology, and purposes; defines key terms; and emphasizes the importance of college planning. Chapter 1 presents a history of the community…
GUIDING THE RETARDED CHILD, AN APPROACH TO A TOTAL EDUCATIONAL PROGRAM.
ERIC Educational Resources Information Center
BAUMGARTNER, BERNICE B.
THIS BOOK PRESENTS AN APPROACH TO EDUCATING THE MENTALLY RETARDED CHILD, WITH THE EMPHASIS ON PROVIDING A COMPREHENSIVE EDUCATIONAL PROGRAM BASED ON CREATING A HOME-SCHOOL-COMMUNITY ENVIRONMENT. IT IS ADDRESSED TO SPECIAL EDUCATION AND SPECIAL SUBJECT TEACHERS, TO THE REGULAR CLASSROOM TEACHER WITH A MENTALLY RETARDED CHILD IN HIS CLASS, AND TO…
Special Education and the New Mental Health: A Response to New Direction of CCBD?
ERIC Educational Resources Information Center
Forness, Steven R.
2011-01-01
The emphasis or focus of a professional association often shifts imperceptibly over time in ways that neither its membership nor its leadership seems able to recognize until pivotal events compel it to do so. The historical shift from psychodynamic to behavioral approaches in special education for children with emotional or behavioral disorders…
ERIC Educational Resources Information Center
Liasidou, Anastasia
2013-01-01
In the light of educational reforms aimed at promoting greater inclusive policies and practices, it is important to put a more pronounced emphasis on the needs of English language learners (ELLs) with special educational needs and/or disabilities. Simultaneously, a focus should also be placed on understanding and dealing with the disproportional…
ERIC Educational Resources Information Center
Vinton, Dennis A.; And Others
A program of career education for exceptional students in the leisure occupations is described. It is explained that the book is designed for regular and special class teachers. Chapters one and two present information on career education principles and implementation. Chapters three through five deal with practical teaching concerns. Behavioral…
Forecasting Propagation and Evolution of CMEs in an Operational Setting: What Has Been Learned
NASA Technical Reports Server (NTRS)
Zheng, Yihua; Macneice, Peter; Odstrcil, Dusan; Mays, M. L.; Rastaetter, Lutz; Pulkkinen, Antti; Taktakishvili, Aleksandre; Hesse, Michael; Kuznetsova, M. Masha; Lee, Hyesook;
2013-01-01
One of the major types of solar eruption, coronal mass ejections (CMEs) not only impact space weather, but also can have significant societal consequences. CMEs cause intense geomagnetic storms and drive fast mode shocks that accelerate charged particles, potentially resulting in enhanced radiation levels both in ions and electrons. Human and technological assets in space can be endangered as a result. CMEs are also the major contributor to generating large amplitude Geomagnetically Induced Currents (GICs), which are a source of concern for power grid safety. Due to their space weather significance, forecasting the evolution and impacts of CMEs has become a much desired capability for space weather operations worldwide. Based on our operational experience at Space Weather Research Center at NASA Goddard Space Flight Center (http://swrc.gsfc.nasa.gov), we present here some of the insights gained about accurately predicting CME impacts, particularly in relation to space weather operations. These include: 1. The need to maximize information to get an accurate handle of three-dimensional (3-D) CME kinetic parameters and therefore improve CME forecast; 2. The potential use of CME simulation results for qualitative prediction of regions of space where solar energetic particles (SEPs) may be found; 3. The need to include all CMEs occurring within a 24 h period for a better representation of the CME interactions; 4. Various other important parameters in forecasting CME evolution in interplanetary space, with special emphasis on the CME propagation direction. It is noted that a future direction for our CME forecasting is to employ the ensemble modeling approach.
Forecasting propagation and evolution of CMEs in an operational setting: What has been learned
NASA Astrophysics Data System (ADS)
Zheng, Yihua; Macneice, Peter; Odstrcil, Dusan; Mays, M. L.; Rastaetter, Lutz; Pulkkinen, Antti; Taktakishvili, Aleksandre; Hesse, Michael; Masha Kuznetsova, M.; Lee, Hyesook; Chulaki, Anna
2013-10-01
of the major types of solar eruption, coronal mass ejections (CMEs) not only impact space weather, but also can have significant societal consequences. CMEs cause intense geomagnetic storms and drive fast mode shocks that accelerate charged particles, potentially resulting in enhanced radiation levels both in ions and electrons. Human and technological assets in space can be endangered as a result. CMEs are also the major contributor to generating large amplitude Geomagnetically Induced Currents (GICs), which are a source of concern for power grid safety. Due to their space weather significance, forecasting the evolution and impacts of CMEs has become a much desired capability for space weather operations worldwide. Based on our operational experience at Space Weather Research Center at NASA Goddard Space Flight Center (http://swrc.gsfc.nasa.gov), we present here some of the insights gained about accurately predicting CME impacts, particularly in relation to space weather operations. These include: 1. The need to maximize information to get an accurate handle of three-dimensional (3-D) CME kinetic parameters and therefore improve CME forecast; 2. The potential use of CME simulation results for qualitative prediction of regions of space where solar energetic particles (SEPs) may be found; 3. The need to include all CMEs occurring within a 24 h period for a better representation of the CME interactions; 4. Various other important parameters in forecasting CME evolution in interplanetary space, with special emphasis on the CME propagation direction. It is noted that a future direction for our CME forecasting is to employ the ensemble modeling approach.
Delsuc, F; Catzeflis, F M; Stanhope, M J; Douzery, E J
2001-08-07
The mammalian order Xenarthra (armadillos, anteaters and sloths) is one of the four major clades of placentals, but it remains poorly studied from the molecular phylogenetics perspective. We present here a study encompassing most of the order's diversity in order to establish xenarthrans' intra-ordinal relationships, discuss the evolution of their morphological characters, search for their extant sister group and specify the timing of their radiation with special emphasis on the status of the controversial fossil Eurotamandua. Sequences of three genes (nuclear exon 28 of the Von Willebrand factor and mitochondrial 12S and 16S rRNAs) are compared for eight of the 13 living genera. Phylogenetic analyses confirm the order's monophyly and that of its three major lineages: armadillos (Cingulata), anteaters (Vermilingua) and sloths ('Tardigrada', renamed in 'Folivora'), and our results strongly support the grouping of hairy xenarthrans (anteaters and sloths) into Pilosa. Within placentals, Afrotheria might be the first lineage to branch off, followed by Xenarthra. The morphological adaptative convergence between New World xenarthrans and Old World pangolins is confirmed. Molecular datings place the early emergence of armadillos around the Cretaceous/Tertiary boundary, followed by the divergence between anteaters and sloths in the Early Eocene era. These Tertiary dates contradict the concept of a very ancient origin of modern xenarthran lineages. They also question the placement of the purported fossil anteater (Eurotamandua) from the Middle Eocene period of Europe with the Vermilingua and instead suggest the independent and convergent evolution of this enigmatic taxon.
Delsuc, F.; Catzeflis, F. M.; Stanhope, M. J.; Douzery, E. J.
2001-01-01
The mammalian order Xenarthra (armadillos, anteaters and sloths) is one of the four major clades of placentals, but it remains poorly studied from the molecular phylogenetics perspective. We present here a study encompassing most of the order's diversity in order to establish xenarthrans' intra-ordinal relationships, discuss the evolution of their morphological characters, search for their extant sister group and specify the timing of their radiation with special emphasis on the status of the controversial fossil Eurotamandua. Sequences of three genes (nuclear exon 28 of the Von Willebrand factor and mitochondrial 12S and 16S rRNAs) are compared for eight of the 13 living genera. Phylogenetic analyses confirm the order's monophyly and that of its three major lineages: armadillos (Cingulata), anteaters (Vermilingua) and sloths ('Tardigrada', renamed in 'Folivora'), and our results strongly support the grouping of hairy xenarthrans (anteaters and sloths) into Pilosa. Within placentals, Afrotheria might be the first lineage to branch off, followed by Xenarthra. The morphological adaptative convergence between New World xenarthrans and Old World pangolins is confirmed. Molecular datings place the early emergence of armadillos around the Cretaceous/Tertiary boundary, followed by the divergence between anteaters and sloths in the Early Eocene era. These Tertiary dates contradict the concept of a very ancient origin of modern xenarthran lineages. They also question the placement of the purported fossil anteater (Eurotamandua) from the Middle Eocene period of Europe with the Vermilingua and instead suggest the independent and convergent evolution of this enigmatic taxon. PMID:11487408
Evolution of Proton and Alpha Particle Velocities through the Solar Cycle
NASA Astrophysics Data System (ADS)
Ďurovcová, T.; Šafránková, J.; Němeček, Z.; Richardson, J. D.
2017-12-01
Relative properties of solar wind protons and α particles are often used as indicators of a source region on the solar surface, and analysis of their evolution along the solar wind path tests our understanding of physics of multicomponent magnetized plasma. The paper deals with the comprehensive analysis of the difference between proton and α particle bulk velocities at 1 au with a special emphasis on interplanetary coronal mass ejections (ICMEs). A comparison of about 20 years of Wind observations at 1 au with Helios measurements closer to the Sun (0.3-0.7 au) generally confirms the present knowledge that (1) the differential speed between both species increases with the proton speed; (2) the differential speed is lower than the local Alfvén speed; (3) α particles are faster than protons near the Sun, and this difference decreases with the increasing distance. However, we found a much larger portion of observations with protons faster than α particles in Wind than in Helios data and attributed this effect to a preferential acceleration of the protons in the solar wind. A distinct population characterized by a very small differential velocity and nearly equal proton and α particle temperatures that is frequently observed around the maximum of solar activity was attributed to ICMEs. Since this population does not exhibit any evolution with increasing collisional age, we suggest that, by contrast to the solar wind from other sources, ICMEs are born in an equilibrium state and gradually lose this equilibrium due to interactions with the ambient solar wind.
The Evolution of Special Education in Malaysia
ERIC Educational Resources Information Center
Lee, Lay Wah; Low, Hui Min
2014-01-01
This article traces the evolution of special education in Malaysia across four chronological stages: before and during the early colonial period (before 1900), pre-independence (1900-1957), post-independence (1957-1990) and modern Malaysia (1990 to the present), through document analysis. By placing current issues and trends within a historical…
Omissions in the synthetic theory of evolution.
Frías L, Daniel
2010-01-01
The Synthetic Theory of Evolution is the most unifying theory of life science. This theory has dominated scientific thought in explaining the mechanisms involved in speciation. However, there are some omissions that have delayed the understanding of some aspects of the mechanisms of organic evolution, principally: 1) the bridge between somatic and germinal cells, especially in some phylum of invertebrates and vertebrates; 2) horizontal genetic transferences and the importance of viruses in host adaptation and evolution; 3) the role of non-coding DNA and non-transcriptional genes; 4) homeotic evolution and the limitations of gradual evolution; and 5) excessive emphasis on extrinsic barriers to animal speciation. This paper reviews each of these topics in an effort to contribute to a better comprehension of organic evolution. Molecular findings suggest the need for a new evolutionary synthesis.
38 CFR 21.252 - Job development and placement services.
Code of Federal Regulations, 2010 CFR
2010-07-01
... AFFAIRS (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Vocational Rehabilitation and Employment Under... providing for special consideration or emphasis or preference of the veteran in employment or training...
Correlated evolution of body and fin morphology in the cichlid fishes.
Feilich, Kara L
2016-10-01
Body and fin shapes are chief determinants of swimming performance in fishes. Different configurations of body and fin shapes can suit different locomotor specializations. The success of any configuration is dependent upon the hydrodynamic interactions between body and fins. Despite the importance of body-fin interactions for swimming, there are few data indicating whether body and fin configurations evolve in concert, or whether these structures vary independently. The cichlid fishes are a diverse family whose well-studied phylogenetic relationships make them ideal for the study of macroevolution of ecomorphology. This study measured body, and caudal and median fin morphology from radiographs of 131 cichlid genera, using morphometrics and phylogenetic comparative methods to determine whether these traits exhibit correlated evolution. Partial least squares canonical analysis revealed that body, caudal fin, dorsal fin, and anal fin shapes all exhibited strong correlated evolution consistent with locomotor ecomorphology. Major patterns included the evolution of deep body profiles with long fins, suggestive of maneuvering specialization; and the evolution of narrow, elongate caudal peduncles with concave tails, a combination that characterizes economical cruisers. These results demonstrate that body shape evolution does not occur independently of other traits, but among a suite of other morphological changes that augment locomotor specialization. © 2016 The Author(s). Evolution © 2016 The Society for the Study of Evolution.
ERIC Educational Resources Information Center
Glenn, William H.
1990-01-01
Examined is the extent to which trends found in high school biology textbooks are also found in earth science texts. Procedures, book lists, and summaries are presented. It is recommended that more emphasis be placed on the theory of evolution in future editions of earth science textbooks. (CW)
Function, form, and technology - The evolution of Space Station in NASA
NASA Technical Reports Server (NTRS)
Fries, S. D.
1985-01-01
The history of major Space Station designs over the last twenty-five years is reviewed. The evolution of design concepts is analyzed with respect to the changing functions of Space Stations; and available or anticipated technology capabilities. Emphasis is given to the current NASA Space Station reference configuration, the 'power tower'. Detailed schematic drawings of the different Space Station designs are provided.
Setting up psychiatric services: cross-cultural issues in planning and delivery.
Bhugra, D
1997-01-01
There is convincing evidence that in the UK, various ethnic minorities are over-represented in psychiatric hospitals, prisons and special hospitals. Various explanations have been put forward for this picture. The expanding emphasis on community care means that models for looking after ethnic communities should be innovative and work from a bottom-up approach. Psychiatric emphasis on clinical diagnoses means that services are developed according to the diagnoses rather than needs.
Transformation and diversification in early mammal evolution.
Luo, Zhe-Xi
2007-12-13
Evolution of the earliest mammals shows successive episodes of diversification. Lineage-splitting in Mesozoic mammals is coupled with many independent evolutionary experiments and ecological specializations. Classic scenarios of mammalian morphological evolution tend to posit an orderly acquisition of key evolutionary innovations leading to adaptive diversification, but newly discovered fossils show that evolution of such key characters as the middle ear and the tribosphenic teeth is far more labile among Mesozoic mammals. Successive diversifications of Mesozoic mammal groups multiplied the opportunities for many dead-end lineages to iteratively evolve developmental homoplasies and convergent ecological specializations, parallel to those in modern mammal groups.
The Evolution of Modern Dance Therapy.
ERIC Educational Resources Information Center
Levy, Fran
1988-01-01
The article traces the impact of the modern dance movement from the early 1900s and its emphasis on creativity and self-expression on the professional and institutional development of dance therapy. (CB)
Quartz crystal and superconductive resonators and oscillators
NASA Technical Reports Server (NTRS)
Besson, R. S.
1978-01-01
A general overview of piezoelectric resonators is given with emphasis on evolution of the resonator design. Superconducting cavities and crystals at low temperature and the use of resonant frequencies are also discussed.
DOT National Transportation Integrated Search
1976-07-01
The objective of the report is to analyze the impacts of the non-market allocation of cargo in the U.S.-International liner trades, with a special emphasis on analyzing the impacts of cargo allocation as prescribed by the United Nations Code of Condu...
Understanding of Special Educational Needs Terms by Student Teachers and Student Paediatric Nurses
ERIC Educational Resources Information Center
Mintz, Joseph
2010-01-01
There has been a growing emphasis in recent years on inter-agency working in respect of the care and development of children. This is of particular relevance when considering the needs of children with special educational needs (SEN). Teachers and healthcare professionals are two groups who need to have a clear understanding of the meaning and…
Mental Health among Former Students with Special Educational Needs Who Are Now in Their Mid-30s
ERIC Educational Resources Information Center
Myklebust, Jon; Myklebust, Vidar
2017-01-01
This article discusses how psychosocial health in adolescence influences adult mental health among former students with special educational needs in Norway. These individuals have been followed prospectively from their teens and into their mid-30s. The study is inspired by life course perspectives with an emphasis on cumulative processes. The…
ERIC Educational Resources Information Center
Radel, David
This paper provides an inventory and summary of current and planned international information clearing house services in the field of population/family planning, worldwide. Special emphasis is placed on services relating to audio-visual aids, educational materials, and information/education/communication support, as these items and activities have…
ERIC Educational Resources Information Center
School Leader, 1987
1987-01-01
A brief background on indoor radon and the health risks associated with radon exposure, with special emphasis on nonresidential buildings. One school district's experience in radon testing and monitoring is included. (MLF)
Hood, J.W.; Patterson, D.J.
1984-01-01
This report presents the results of a study of bedrock aquifers in the northern San Rafael Swell area, Utah (fig. 1), with special emphasis on the Navajo Sandstone of Triassic(?) and Jurassic age. The study was made by the U.S. Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Rights. Fieldwork was done mainly during March 1979-July 1980, with supplemental testing and observations during August-December 1980.The principal objectives of this study were to determine: (1) Well yields of the bedrock formations, (2) the capability of formations to yield, over the long term, water chemically suitable for presently (1980) known uses, and (3) effects of withdrawals from wells on the surface-water supply in the Colorado River Basin.
Pal, Dilipkumar; Mazumder, Upal Kanti
2014-12-01
Mikania scandens, a twining herb that grows as a weed in India and Bangladesh is used as vegetables and is a good source of vitamin A, C, B complex, mikanin, sesquiterpenes, betasitosterin, stigmasterol and friedelin. The present communication reports CNS depressant activities with special emphasis to brain biogenic amines in mice. Ethanol extract of leaves of M. scandens (EEMS) was prepared by Soxhalation and analyzed chemically. EEMS potentiated sleeping time induced by pentobarbitone, diazepam and meprobamate and showed significant reduction in the number of writhes and stretches. EEMS caused significant protection against pentylene tetrazole-induced convulsion and increased catecholamines and brain amino acids level significantly. Results showed that EEMS produced good CNS depressant effects in mice.
Haider, Khadija; Khokhar, Muhammad Fahim; Chishtie, Farrukh; RazzaqKhan, Waseem; Hakeem, Khalid Rehman
2017-03-01
Like other developing countries, Pakistan is also facing changes in temperature per decade and other climatic abnormalities like droughts and torrential rains. In order to assess and identify the extent of temperature change over Pakistan, the whole Pakistan was divided into five climatic zones ranging from very cold to hot and dry climates. Similarly, seasons in Pakistan are defined on the basis of monsoon variability as winter, pre-monsoon, monsoon, and post-monsoon. This study primarily focuses on the comparison of surface temperature observations from Pakistan Meteorological Department (PMD) network with PRECIS (Providing Regional Climates for Impacts Studies) model simulations. Results indicate that PRECIS underestimates the temperature in Northern Pakistan and during the winter season. However, there exists a fair agreement between PRECIS output and observed datasets in the lower plain and hot areas of the country. An absolute increase of 0.07 °C is observed in the mean temperature over Pakistan during the time period of 1951-2010. Especially, the increase is more significant (0.7 °C) during the last 14 years (1997-2010). Moreover, SCIAMACHY observations were used to explore the evolution of atmospheric CO 2 levels in comparison to temperature over Pakistan. CO 2 levels have shown an increasing trend during the first decade of the twenty-first century.
Applications of statistical physics to technology price evolution
NASA Astrophysics Data System (ADS)
McNerney, James
Understanding how changing technology affects the prices of goods is a problem with both rich phenomenology and important policy consequences. Using methods from statistical physics, I model technology-driven price evolution. First, I examine a model for the price evolution of individual technologies. The price of a good often follows a power law equation when plotted against its cumulative production. This observation turns out to have significant consequences for technology policy aimed at mitigating climate change, where technologies are needed that achieve low carbon emissions at low cost. However, no theory adequately explains why technology prices follow power laws. To understand this behavior, I simplify an existing model that treats technologies as machines composed of interacting components. I find that the power law exponent of the price trajectory is inversely related to the number of interactions per component. I extend the model to allow for more realistic component interactions and make a testable prediction. Next, I conduct a case-study on the cost evolution of coal-fired electricity. I derive the cost in terms of various physical and economic components. The results suggest that commodities and technologies fall into distinct classes of price models, with commodities following martingales, and technologies following exponentials in time or power laws in cumulative production. I then examine the network of money flows between industries. This work is a precursor to studying the simultaneous evolution of multiple technologies. Economies resemble large machines, with different industries acting as interacting components with specialized functions. To begin studying the structure of these machines, I examine 20 economies with an emphasis on finding common features to serve as targets for statistical physics models. I find they share the same money flow and industry size distributions. I apply methods from statistical physics to show that industries cluster the same way according to industry type. Finally, I use these industry money flows to model the price evolution of many goods simultaneously, where network effects become important. I derive a prediction for which goods tend to improve most rapidly. The fastest-improving goods are those with the highest mean path lengths in the money flow network.
NASA Astrophysics Data System (ADS)
Stippich, Christian; Glasmacher, Ulrich Anton; Hackspacher, Peter
2015-04-01
The aim of the research is to quantify the long-term landscape evolution of the South Atlantic passive continental margin (SAPCM) in SE-Brazil and NW-Namibia. Excellent onshore outcrop conditions and complete rift to post-rift archives between Sao Paulo and Porto Alegre and in the transition from Namibia to Angola (onshore Walvis ridge) allow a high precision quantification of exhumation, and uplift rates, influencing physical parameters, long-term acting forces, and process-response systems. Research will integrate the published and partly published thermochronological data from Brazil and Namibia, and test lately published new concepts on causes of long-term landscape evolution at rifted margins. The climate-continental margin-mantle coupled process-response system is caused by the interaction between endogenous and exogenous forces, which are related to the mantle-process driven rift - drift - passive continental margin evolution of the South Atlantic, and the climate change since the Early/Late Cretaceous climate maximum. Special emphasis will be given to the influence of long-living transform faults such as the Florianopolis Fracture Zone (FFZ) on the long-term topography evolution of the SAPCM's. A long-term landscape evolution model with process rates will be achieved by thermo-kinematic 3-D modeling (software code PECUBE1,2 and FastScape3). Testing model solutions obtained for a multidimensional parameter space against the real thermochronological and geomorphological data set, the most likely combinations of parameter rates, and values can be constrained. The data and models will allow separating the exogenous and endogenous forces and their process rates. References 1. Braun, J., 2003. Pecube: A new finite element code to solve the 3D heat transport equation including the effects of a time-varying, finite amplitude surface topography. Computers and Geosciences, v.29, pp.787-794. 2. Braun, J., van der Beek, P., Valla, P., Robert, X., Herman, F., Goltzbacj, C., Pedersen, V., Perry, C., Simon-Labric, T., Prigent, C. 2012. Quantifying rates of landscape evolution and tectonic processes by thermochronology and numerical modeling of crustal heat transport using PECUBE. Tectonophysics, v.524-525, pp.1-28. 3. Braun, J. and Willett, S.D., 2013. A very efficient, O(n), implicit and parallel method to solve the basic stream power law equation governing fluvial incision and landscape evolution. Geomorphology, v.180-181, 170-179.
Woźniak, Natalia Joanna; Sicard, Adrien
2018-07-01
Flowers represent a key innovation during plant evolution. Driven by reproductive optimization, evolution of flower morphology has been central in boosting species diversification. In most cases, this has happened through specialized interactions with animal pollinators and subsequent reduction of gene flow between specialized morphs. While radiation has led to an enormous variability in flower forms and sizes, recurrent evolutionary patterns can be observed. Here, we discuss the targets of selection involved in major trends of pollinator-driven flower evolution. We review recent findings on their adaptive values, developmental grounds and genetic bases, in an attempt to better understand the repeated nature of pollinator-driven flower evolution. This analysis highlights how structural innovation can provide flexibility in phenotypic evolution, adaptation and speciation. Copyright © 2017 Elsevier Ltd. All rights reserved.
Morphology, development, and evolution of fetal membranes and placentation in squamate reptiles.
Blackburn, Daniel G; Flemming, Alexander F
2009-09-15
Current studies on fetal membranes of reptiles are providing insight into three major historical transformations: evolution of the amniote egg, evolution of viviparity, and evolution of placentotrophy. Squamates (lizards and snakes) are ideal for such studies because their fetal membranes sustain embryos in oviparous species and contribute to placentas in viviparous species. Ultrastructure of the fetal membranes in oviparous corn snakes (Pituophis guttatus) shows that the chorioallantois is specialized for gas exchange and the omphalopleure, for water absorption. Transmission and scanning electron microscopic studies of viviparous thamnophine snakes (Thamnophis, Storeria) have revealed morphological specializations for gas exchange and absorption in the intra-uterine environment that represent modifications of features found in oviparous species. Thus, fetal membranes in oviparous species show morphological differentiation for distinct functions that have been recruited and enhanced under viviparous conditions. The ultimate in specialization of fetal membranes is found in viviparous skinks of South America (Mabuya) and Africa (Trachylepis, Eumecia), in which placentotrophy accounts for nearly all of the nutrients for development. Ongoing research on these lizards has revealed morphological specializations of the chorioallantoic placenta through which nutrient transfer is accomplished. In addition, African Trachylepis show an invasive form of implantation, in which uterine epithelium is replaced by invading chorionic cells. Ongoing analysis of these lizards shows how integration of multiple lines of evidence can provide insight into the evolution of developmental and reproductive specializations once thought to be confined to eutherian mammals.
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