Physics division. Progress report, January 1, 1995--December 31, 1996
DOE Office of Scientific and Technical Information (OSTI.GOV)
Stewart, M.; Bacon, D.S.; Aine, C.J.
1997-10-01
This issue of the Physics Division Progress Report describes progress and achievements in Physics Division research during the period January 1, 1995-December 31, 1996. The report covers the five main areas of experimental research and development in which Physics Division serves the needs of Los Alamos National Laboratory and the nation in applied and basic sciences: (1) biophysics, (2) hydrodynamic physics, (3) neutron science and technology, (4) plasma physics, and (5) subatomic physics. Included in this report are a message from the Division Director, the Physics Division mission statement, an organizational chart, descriptions of the research areas of the fivemore » groups in the Division, selected research highlights, project descriptions, the Division staffing and funding levels for FY95-FY97, and a list of publications and presentations.« less
Physics division annual report 2006.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Glover, J.; Physics
2008-02-28
This report highlights the activities of the Physics Division of Argonne National Laboratory in 2006. The Division's programs include the operation as a national user facility of ATLAS, the Argonne Tandem Linear Accelerator System, research in nuclear structure and reactions, nuclear astrophysics, nuclear theory, investigations in medium-energy nuclear physics as well as research and development in accelerator technology. The mission of nuclear physics is to understand the origin, evolution and structure of baryonic matter in the universe--the core of matter, the fuel of stars, and the basic constituent of life itself. The Division's research focuses on innovative new ways tomore » address this mission.« less
Upper-Division Student Difficulties with Separation of Variables
ERIC Educational Resources Information Center
Wilcox, Bethany R.; Pollock, Steven J.
2015-01-01
Separation of variables can be a powerful technique for solving many of the partial differential equations that arise in physics contexts. Upper-division physics students encounter this technique in multiple topical areas including electrostatics and quantum mechanics. To better understand the difficulties students encounter when utilizing the…
Lightning Talks 2015: Theoretical Division
DOE Office of Scientific and Technical Information (OSTI.GOV)
Shlachter, Jack S.
2015-11-25
This document is a compilation of slides from a number of student presentations given to LANL Theoretical Division members. The subjects cover the range of activities of the Division, including plasma physics, environmental issues, materials research, bacterial resistance to antibiotics, and computational methods.
Physics Division progress report, January 1, 1984-September 30, 1986
DOE Office of Scientific and Technical Information (OSTI.GOV)
Keller, W.E.
1987-10-01
This report provides brief accounts of significant progress in development activities and research results achieved by Physics Division personnel during the period January 1, 1984, through September 31, 1986. These efforts are representative of the three main areas of experimental research and development in which the Physics Division serves Los Alamos National Laboratory's and the Nation's needs in defense and basic sciences: (1) defense physics, including the development of diagnostic methods for weapons tests, weapon-related high-energy-density physics, and programs supporting the Strategic Defense Initiative; (2) laser physics and applications, especially to high-density plasmas; and (3) fundamental research in nuclear andmore » particle physics, condensed-matter physics, and biophysics. Throughout the report, emphasis is placed on the design, construction, and application of a variety of advanced, often unique, instruments and instrument systems that maintain the Division's position at the leading edge of research and development in the specific fields germane to its mission. A sampling of experimental systems of particular interest would include the relativistic electron-beam accelerator and its applications to high-energy-density plasmas; pulsed-power facilities; directed energy weapon devices such as free-electron lasers and neutral-particle-beam accelerators; high-intensity ultraviolet and x-ray beam lines at the National Synchrotron Light Source (at Brookhaven National Laboratory); the Aurora KrF ultraviolet laser system for projected use as an inertial fusion driver; antiproton physics facility at CERN; and several beam developments at the Los Alamos Meson Physics Facility for studying nuclear, condensed-matter, and biological physics, highlighted by progress in establishing the Los Alamos Neutron Scattering Center.« less
Engineering physics and mathematics division
NASA Astrophysics Data System (ADS)
Sincovec, R. F.
1995-07-01
This report provides a record of the research activities of the Engineering Physics and Mathematics Division for the period 1 Jan. 1993 - 31 Dec. 1994. This report is the final archival record of the EPM Division. On 1 Oct. 1994, ORELA was transferred to Physics Division and on 1 Jan. 1995, the Engineering Physics and Mathematics Division and the Computer Applications Division reorganized to form the Computer Science and Mathematics Division and the Computational Physics and Engineering Division. Earlier reports in this series are identified on the previous pages, along with the progress reports describing ORNL's research in the mathematical sciences prior to 1984 when those activities moved into the Engineering Physics and Mathematics Division.
ERIC Educational Resources Information Center
School Science Review, 1976
1976-01-01
Described are 13 physics experiments/demonstrations applicable to introductory physics courses. Activities include: improved current balance, division circuits, liquid pressure, convection, siphons, oscillators and modulation, electrical resistance, soap films, Helmholtz coils, radioactive decay, and springs. (SL)
Meyerhofer, D. D.; Mauel, M. E.
2016-05-18
The 57th annual meeting of the APS Division of Plasma Physics (DPP) was held November 16–20, 2015 in Savannah, Georgia. The meeting brings together researchers (undergraduate students through retirees) from all areas of plasma physics. 1887 abstracts were included in the program, approximately 200 more than the previous year. The presentations included five invited review talks, 97 invited talks, three invited postdeadline talks, and four tutorials. Furthermore, there were approximately 1780 contributed presentations, with about 40% oral and 60% poster. Three mini-conferences were held concurrently.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Meyerhofer, D. D.; Mauel, M. E.
The 57th annual meeting of the APS Division of Plasma Physics (DPP) was held November 16–20, 2015 in Savannah, Georgia. The meeting brings together researchers (undergraduate students through retirees) from all areas of plasma physics. 1887 abstracts were included in the program, approximately 200 more than the previous year. The presentations included five invited review talks, 97 invited talks, three invited postdeadline talks, and four tutorials. Furthermore, there were approximately 1780 contributed presentations, with about 40% oral and 60% poster. Three mini-conferences were held concurrently.
How-to-Do-It: Hands-on Activities that Relate Mendelian Genetics to Cell Division.
ERIC Educational Resources Information Center
McKean, Heather R.; Gibson, Linda S.
1989-01-01
Presented is an activity designed to connect Mendelian laws with the physical processes of cell division. Included are materials production, procedures and worksheets for the meiosis-mitosis game and a genetics game. (CW)
Progress at LAMPF: Clinton P. Anderson Meson Physics Facility. Progress report, January-June 1981
DOE Office of Scientific and Technical Information (OSTI.GOV)
Allred, J.C.
1981-09-01
Progress at LAMPF is the semiannual progress report of the MP Division of the Los Alamos National Laboratory. The report includes brief reports on research done at LAMPF by researchers from other institutions and Los Alamos divisions.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
The primary purpose of this report is to provide an archival record of the activities of the Engineering Physics and Mathematics Division during the period September 1, 1989 through March 31, 1991. Earlier reports in this series are identified on the previous pages, along with the progress reports describing ORNL's research on the mathematical sciences prior to 1984 when those activities moved into the division. As in previous reports, our research is described through abstracts of journal articles, technical reports, and presentations. Summary lists of publications and presentations, staff additions and departures, scientific and professional activities of division staff, andmore » technical conferences organized and sponsored by the division are included as appendices. The report is organized following the division of our research among four sections and information centers. These research areas are: Mathematical Sciences; Nuclear Data Measurement and Evaluations; Intelligent Systems; Nuclear Analysis and Shielding; and Engineering Physics Information Center.« less
The Ampere and Electrical Standards
Elmquist, Randolph E.; Cage, Marvin E.; Tang, Yi-hua; Jeffery, Anne-Marie; Kinard, Joseph R.; Dziuba, Ronald F.; Oldham, Nile M.; Williams, Edwin R.
2001-01-01
This paper describes some of the major contributions to metrology and physics made by the NIST Electricity Division, which has existed since 1901. It was one of the six original divisions of the National Bureau of Standards. The Electricity Division provides dc and low-frequency calibrations for industrial, scientific, and research organizations, and conducts research on topics related to electrical metrology and fundamental constants. The early work of the Electricity Division staff included the development of precision standards, such as Rosa and Thomas standard resistors and the ac-dc thermal converter. Research contributions helped define the early international system of measurement units and bring about the transition to absolute units based on fundamental principles and physical and dimensional measurements. NIST research has helped to develop and refine electrical standards using the quantum Hall effect and the Josephson effect, which are both based on quantum physics. Four projects covering a number of voltage and impedance measurements are described in detail. Several other areas of current research at NIST are described, including the use of the Internet for international compatibility in metrology, determination of the fine-structure and Planck constants, and construction of the electronic kilogram. PMID:27500018
New tools for investigating student learning in upper-division electrostatics
NASA Astrophysics Data System (ADS)
Wilcox, Bethany R.
Student learning in upper-division physics courses is a growing area of research in the field of Physics Education. Developing effective new curricular materials and pedagogical techniques to improve student learning in upper-division courses requires knowledge of both what material students struggle with and what curricular approaches help to overcome these struggles. To facilitate the course transformation process for one specific content area --- upper-division electrostatics --- this thesis presents two new methodological tools: (1) an analytical framework designed to investigate students' struggles with the advanced physics content and mathematically sophisticated tools/techniques required at the junior and senior level, and (2) a new multiple-response conceptual assessment designed to measure student learning and assess the effectiveness of different curricular approaches. We first describe the development and theoretical grounding of a new analytical framework designed to characterize how students use mathematical tools and techniques during physics problem solving. We apply this framework to investigate student difficulties with three specific mathematical tools used in upper-division electrostatics: multivariable integration in the context of Coulomb's law, the Dirac delta function in the context of expressing volume charge densities, and separation of variables as a technique to solve Laplace's equation. We find a number of common themes in students' difficulties around these mathematical tools including: recognizing when a particular mathematical tool is appropriate for a given physics problem, mapping between the specific physical context and the formal mathematical structures, and reflecting spontaneously on the solution to a physics problem to gain physical insight or ensure consistency with expected results. We then describe the development of a novel, multiple-response version of an existing conceptual assessment in upper-division electrostatics courses. The goal of this new version is to provide an easily-graded electrostatics assessment that can potentially be implemented to investigate student learning on a large scale. We show that student performance on the new multiple-response version exhibits a significant degree of consistency with performance on the free-response version, and that it continues to provide significant insight into student reasoning and student difficulties. Moreover, we demonstrate that the new assessment is both valid and reliable using data from upper-division physics students at multiple institutions. Overall, the work described in this thesis represents a significant contribution to the methodological tools available to researchers and instructors interested in improving student learning at the upper-division level.
Solid State Division progress report for period ending September 30, 1984
DOE Office of Scientific and Technical Information (OSTI.GOV)
Green, P.H.; Watson, D.M.
1985-03-01
During the reporting period, relatively minor changes have occurred in the research areas of interest to the Division. Nearly all the research of the Division can be classified broadly as mission-oriented basic research. Topics covered include: theoretical solid state physics; surface and near-surface properties of solids; defects in solids; transport properties of solids; neutron scattering; and preparation and characterization of research materials. (GHT)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Duran, Susan M.
These slides are the updated overview presentation for the TV monitor in 3-1415-Lobby at Los Alamos National Laboratory (LANL). It gives an overview of the Materials Physics and Applications Division, including descriptions of the leaders, where researchers are fellows (such as APS or OSA), the newest LANL fellows at MPA, and many other researchers who have won prizes. Finally, MPA's research accomplishments and focuses are detailed.
Cortical PAR polarity proteins promote robust cytokinesis during asymmetric cell division
Jordan, Shawn N.; Davies, Tim; Zhuravlev, Yelena; Dumont, Julien; Shirasu-Hiza, Mimi
2016-01-01
Cytokinesis, the physical division of one cell into two, is thought to be fundamentally similar in most animal cell divisions and driven by the constriction of a contractile ring positioned and controlled solely by the mitotic spindle. During asymmetric cell divisions, the core polarity machinery (partitioning defective [PAR] proteins) controls the unequal inheritance of key cell fate determinants. Here, we show that in asymmetrically dividing Caenorhabditis elegans embryos, the cortical PAR proteins (including the small guanosine triphosphatase CDC-42) have an active role in regulating recruitment of a critical component of the contractile ring, filamentous actin (F-actin). We found that the cortical PAR proteins are required for the retention of anillin and septin in the anterior pole, which are cytokinesis proteins that our genetic data suggest act as inhibitors of F-actin at the contractile ring. Collectively, our results suggest that the cortical PAR proteins coordinate the establishment of cell polarity with the physical process of cytokinesis during asymmetric cell division to ensure the fidelity of daughter cell formation. PMID:26728855
NASA Astrophysics Data System (ADS)
Pollock, Steven
2013-04-01
At most universities, including the University of Colorado, upper-division physics courses are taught using a traditional lecture approach that does not make use of many of the instructional techniques that have been found to improve student learning at the introductory level. We are transforming several upper-division courses using principles of active engagement and learning theory, guided by the results of observations, interviews, and analysis of student work at CU and elsewhere. In this talk I outline these transformations, including the development of faculty consensus learning goals, clicker questions, tutorials, modified homeworks, and more. We present evidence of the effectiveness of these transformations relative to traditional courses, based on student grades, interviews, and through research-based assessments of student conceptual mastery and student attitudes. Our results suggest that many of the tools that have been effective in introductory courses are effective for our majors, and that further research is warranted in the upper-division environment. (See www.colorado.edu/sei/departments/physics.htm for materials)
NASA Astrophysics Data System (ADS)
2014-12-01
A scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS), entitled "A little something from physics for medicine", was held on 23 April 2014 at the conference hall of the Lebedev Physical Institute, RAS. The agenda posted on the website of the Physical Sciences Division, RAS, http://www.gpad.ac.ru, included the following reports: (1) Rumyantsev S A (D Rogachev Federal Research and Clinical Center of Pediatric Hematology, Oncology, and Immunology, Moscow) "Translational medicine as a basis of progress in hematology/oncology"; (2) Akulinichev S V (Institute for Nuclear Research, RAS, Moscow) "Promising nuclear medicine research at the INR, RAS"; (3) Nikitin P P (Prokhorov General Physics Institute, RAS, Moscow) "Biosensorics: new possibilities provided by marker-free optical methods and magnetic nanoparticles for medical diagnostics"; (4) Alimpiev S S, Nikiforov S M, Grechnikov A A (Prokhorov General Physics Institute, RAS, Moscow) "New approaches in laser mass-spectrometry of organic objects". The publication of the article based on the oral report No. 2 is presented below. • Promising nuclear medicine research in the Institute for Nuclear Research, Russian Academy of Sciences, V V Akulinichev Physics-Uspekhi, 2014, Volume 57, Number 12, Pages 1239-1243
DOE Office of Scientific and Technical Information (OSTI.GOV)
Stelson, P.H.
The bulk of the Division's effort concerned nuclear physics and accelerator development, but work in the areas of nuclear data, research applicable to the magnetic fusion project, atomic and molecular physics, and high-energy physics is also recounted. Lists of publications, technical talks, personnel, etc., are included. Individual reports with sufficient data are abstracted separately. (RWR)
ERIC Educational Resources Information Center
Hay, James G., Ed.
This is a collection of significant papers by leading authorities, compiled by the American Association of Health, Physical Education, and Recreation's Kinesiology Committee of the Physical Education Division. The following papers are included in this collection: "Supporting Biomechanics Subject Matter in the Undergraduate Curriculum";…
Physics division annual report 2000.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Thayer, K., ed.
2001-10-04
This report summarizes the research performed in 2000 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory and medium energy physics research, and accelerator research and development. As the Nuclear Science Advisory Committee and the nuclear science community create a new long range plan for the field in 2001, it is clear that the research of the Division is closely aligned with and continues to help define the national goals of our field. The NSAC 2001 Long Range Plan recommends as themore » highest priority for major new construction the Rare Isotope Accelerator (RIA), a bold step forward for nuclear structure and nuclear astrophysics. The accelerator R&D in the Physics Division has made major contributions to almost all aspects of the RIA design concept and the community was convinced that this project is ready to move forward. 2000 saw the end of the first Gammasphere epoch at ATLAS, One hundred Gammasphere experiments were completed between January 1998 and March 2000, 60% of which used the Fragment Mass Analyzer to provide mass identification in the reaction. The experimental program at ATLAS then shifted to other important research avenues including proton radioactivity, mass measurements with the Canadian Penning Trap and measurements of high energy gamma-rays in nuclear reactions with the MSU/ORNL/Texas A&M BaF{sub 2} array. ATLAS provided 5460 beam-research hours for user experiments and maintained an operational reliability of 95%. Radioactive beams accounted for 7% of the beam time. ATLAS also provided a crucial test of a key RIA concept, the ability to accelerate multiple charge states in a superconducting heavy-ion linac. This new capability was immediately used to increase the performance for a scheduled experiment. The medium energy program continued to make strides in examining how the quark-gluon structure of matter impacts the structure of nuclei and extended the exquisite sensitivity of the Atom-Trap-Trace-Analysis technique to new species and applications. All of this progress was built on advances in nuclear theory, which the Division pursues at the quark, hadron, and nuclear collective degrees of freedom levels. These are just a few of the highlights in the Division's research program. The results reflect the talents and dedication of the Physics Division staff and the visitors, guests and students who bring so much to the research.« less
NASA Astrophysics Data System (ADS)
McGinty, A. B.
1982-04-01
Contents: The Air Force Geophysics Laboratory; Aeronomy Division--Upper Atmosphere Composition, Middle Atmosphere Effects, Atmospheric UV Radiation, Satellite Accelerometer Density Measurement, Theoretical Density Studies, Chemical Transport Models, Turbulence and Forcing Functions, Atmospheric Ion Chemistry, Energy Budget Campaign, Kwajalein Reference Atmospheres, 1979, Satellite Studies of the Neutral Atmosphere, Satellite Studies of the Ionosphere, Aerospace Instrumentation Division--Sounding Rocket Program, Satellite Support, Rocket and Satellite Instrumentation; Space Physics Division--Solar Research, Solar Radio Research, Environmental Effects on Space Systems, Solar Proton Event Studies, Defense Meteorological Satellite Program, Ionospheric Effects Research, Spacecraft Charging Technology; Meteorology Division--Cloud Physics, Ground-Based Remote-Sensing Techniques, Mesoscale Observing and Forecasting, Design Climatology, Aircraft Icing Program, Atmospheric Dynamics; Terrestrial Sciences Division--Geodesy and Gravity, Geokinetics; Optical Physics Division--Atmospheric Transmission, Remote Sensing, INfrared Background; and Appendices.
The Astrophysics Science Division Annual Report 2008
NASA Technical Reports Server (NTRS)
Oegerle, William; Reddy, Francis; Tyler, Pat
2009-01-01
The Astrophysics Science Division (ASD) at Goddard Space Flight Center (GSFC) is one of the largest and most diverse astrophysical organizations in the world, with activities spanning a broad range of topics in theory, observation, and mission and technology development. Scientific research is carried out over the entire electromagnetic spectrum from gamma rays to radio wavelengths as well as particle physics and gravitational radiation. Members of ASD also provide the scientific operations for three orbiting astrophysics missions WMAP, RXTE, and Swift, as well as the Science Support Center for the Fermi Gamma-ray Space Telescope. A number of key technologies for future missions are also under development in the Division, including X-ray mirrors, and new detectors operating at gamma-ray, X-ray, ultraviolet, infrared, and radio wavelengths. This report includes the Division's activities during 2008.
77 FR 68125 - Statement of Organization, Functions, and Delegations of Authority
Federal Register 2010, 2011, 2012, 2013, 2014
2012-11-15
..., development and evaluation; and (16) provides health physics expertise for all division public health..., development and evaluation; and (16) provides health physics expertise for all division public health..., development and evaluation; and (16) provides health physics expertise for all division public health...
Books for the Blind and Physically Handicapped. Fourth Edition.
ERIC Educational Resources Information Center
Haycraft, Howard
The article discusses library services available for the blind and the physically handicapped at the Division for the Blind and Physically Handicapped of the Library of Congress and at regional libraries. Topics covered include conditions and eligibility for service, with talking book service provided for individuals who cannot read or use…
ERIC Educational Resources Information Center
American Alliance for Health, Physical Education, Recreation, and Dance, Houston, TX. Southern District.
The proceedings of the division meetings on health, physical education, and recreation are presented here. Topics include bioethics, cardiopulmonary resuscitation, sexuality, dance, athletics, movement education, outdoor education, and physical fitness. The proceedings of the business meeting are presented as well. (DS)
Federal Register 2010, 2011, 2012, 2013, 2014
2011-01-26
... and General Physics Corporation Excluding Workers of the Global Purchasing and Supply Chain Division... plants. The company reports that workers leased from General Physics Corporation were employed on-site at..., Technical Center. The Department has determined that on-site workers from General Physics Corporation were...
NASA Astrophysics Data System (ADS)
Chasteen, Stephanie V.; Wilcox, Bethany; Caballero, Marcos D.; Perkins, Katherine K.; Pollock, Steven J.; Wieman, Carl E.
2015-12-01
[This paper is part of the Focused Collection on Upper Division Physics Courses.] In response to the need for a scalable, institutionally supported model of educational change, the Science Education Initiative (SEI) was created as an experiment in transforming course materials and faculty practices at two institutions—University of Colorado Boulder (CU) and University of British Columbia. We find that this departmentally focused model of change, which includes an explicit focus on course transformation as supported by a discipline-based postdoctoral education specialist, was generally effective in impacting courses and faculty across the institution. In CU's Department of Physics, the SEI effort focused primarily on upper-division courses, creating high-quality course materials, approaches, and assessments, and demonstrating an impact on student learning. We argue that the SEI implementation in the CU Physics Department, as compared to that in other departments, achieved more extensive impacts on specific course materials, and high-quality assessments, due to guidance by the physics education research group—but with more limited impact on the departmental faculty as a whole. We review the process and progress of the SEI Physics at CU and reflect on lessons learned in the CU Physics Department in particular. These results are useful in considering both institutional and faculty-led models of change and course transformation.
Use of clickers and sustainable reform in upper-division physics courses
NASA Astrophysics Data System (ADS)
Dubson, Michael
2008-03-01
At the University of Colorado at Boulder, successful reforms of our freshmen and sophomore-level physics courses are now being extended to upper-division courses, including Mechanics, Math Methods, QM, E&M, and Thermal Physics. Our course reforms include clicker questions (ConcepTests) in lecture, peer instruction, and an added emphasis on conceptual understanding and qualitative reasoning on homework assignments and exams. Student feedback has been strongly positive, and I will argue that such conceptual training improves rather than dilutes, traditional, computationally-intensive problem-solving skills. In order for these reforms to be sustainable, reform efforts must begin with department-wide consensus and agreed-upon measures of success. I will discuss the design of good clicker questions and effective incorporation into upper-level courses, including examples from materials science. Condensed matter physics, which by nature involve intelligent use of approximation, particularly lends itself to conceptual training. I will demonstrate the use of a clicker system (made by iClicker) with audience-participation questions. Come prepared to think and interact, rather than just sit there!
Physics Division annual review, 1 April 1975--31 March 1976. [ANL
DOE Office of Scientific and Technical Information (OSTI.GOV)
Garvey, G. T.
1976-01-01
An overview is given of Physics Division activities in the following areas: the heavy-ion booster; medium-energy physics; heavy-ion physics; low-energy charged-particle physics; accelerator operations; neutron physics; theoretical nuclear physics, and atomic and molecular physics. A bibliography of publications amounts to 27 pages. (RWR)
Physics division. Progress report for period ending September 30, 1996
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ball, S.J.
1997-04-01
This report covers the research and development activities of the Physics Division for the 1995 and 1996 fiscal years, beginning October 1, 1994, and ending September 30, 1996. The activities of the Division continue to be concentrated in the areas of experimental nuclear physics, experimental atomic physics, and theoretical nuclear and atomic physics. In addition, there are smaller programs in plasma diagnostics and data compilation and evaluation. During the period of this report, there has been considerable success in bringing the Holifield Radioactive Ion Beam Facility (HRIBF) into routine operation. The budgets of the nuclear physics portion of the Divisionmore » have increased each year in nearly all areas, and several new members have been added to the Division research and development staff. On August 30, 1996, the HRIBF successfully accelerated its first radioactive ion beams, {sup 69}As and {sup 70}As. Prior to this, the heart of the facility, the RIB injector system, was completed, including installation of a remote handling system for the target/ion source assembly. Target and ion source development is likely to be the technical key to success of the HRIBF. We have expanded our efforts in those development areas. Of special note is the development of highly permeable composite targets which have now been shown to allow release of difficult-to-produce radioactive ions such as {sup 17,18}F. A summary of the HRIBF work is provided in Chapter 1, along with supporting activities of the Joint Institute for Heavy Ion Research.« less
Physics Education Research at the Upper Division at the University of Maine
NASA Astrophysics Data System (ADS)
Thompson, John
2013-04-01
Researchers from the University of Maine Physics Education Research Laboratory are conducting several investigations of the learning and teaching of physics beyond the introductory level. Content topics include intermediate mechanics, electronics, thermodynamics and statistical mechanics. One focus of our work is the identification and addressing of specific student difficulties with topics such as damped harmonic motion, bipolar junction transistor (BJT) circuits, work, entropy, and the Boltzmann factor. Student understanding and use of the underlying mathematics has been one important emerging theme, including definite integrals, partial derivatives, and linear differential equations. Recent work in mechanics has focused on understanding the interplay of mathematical and physical reasoning when describing damped harmonic motion, including framing and representational issues. In electronics, there has been an ongoing investigation of student understanding of the behavior of basic BJT follower and amplifier circuits as well as related issues of signal and bias. In thermal physics, student understanding of state functions, heat engines and the Carnot cycle, the First and Second Laws of thermodynamics, and the macroscopic and microscopic perspectives on entropy have been investigated. The greater content sophistication in these courses has drawn attention to the specific needs, constraints, and advantages of instructional materials tailored to the upper division. Future directions include more attention to interdisciplinary topics across mathematics, physics, and engineering in particular, as well as metacognition in the laboratory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... Division. (a) Section 12(a) prohibits the shipment or delivery for shipment in commerce of “any goods... part or ingredient thereof, but does not include goods after their delivery into the actual physical... their delivery into the actual physical possession of an ultimate consumer other than a producer...
Preface to the special issue on ;Optical Communications Exploiting the Space Domain;
NASA Astrophysics Data System (ADS)
Wang, Jian; Yu, Siyuan; Li, Guifang
2018-02-01
The demand for high capacity optical communications will continue to be driven by the exponential growth of global internet traffic. Optical communications are about the exploitation of different physical dimensions of light waves, including complex amplitude, frequency (or wavelength), time, polarization, etc. Conventional techniques such as wavelength-division multiplexing (WDM), time-division multiplexing (TDM) and polarization-division multiplexing (PDM) have almost reached their scalability limits. Space domain is the only known physical dimension left and space-division multiplexing (SDM) seems the only option to further scale the transmission capacity and spectral efficiency of optical communications. In recent years, few-mode fiber (FMF), multi-mode fiber (MMF), multi-core fiber (MCF) and few-mode multi-core fiber (FM-MCF) have been widely explored as promising candidates for fiber-based SDM. The challenges for SDM include efficient (de)multiplexer, amplifiers, and multiple-input multiple-output (MIMO) digital signal processing (DSP) techniques. Photonic integration will also be a key technology to SDM. Meanwhile, free-space and underwater optical communications have also exploited the space domain to increase the transmission capacity and spectral efficiency. The challenges include long-distance transmission limited by propagation loss, divergence, scattering and turbulence. Very recently, helically phased light beams carrying orbital angular momentum (OAM) have also seen potential applications both in free-space, underwater and fiber-based optical communications. Actually, different mode bases such as linearly polarized (LP) modes and OAM modes can be employed for SDM. Additionally, SDM could be used in chip-scale photonic interconnects and data center optical interconnects. Quantum processing exploiting the space domain is of great interest. The information capacity limit and physical layer security in SDM optical communications systems are important issues to be addressed.
Untitled Document [Argonne Logo] [DOE Logo] High Energy Physics Home Division ES&H Personnel Collider Physics Cosmic Frontier Cosmic Frontier Theory & Computing Detector R&D Electronic Design Mechanical Design Neutrino Physics Theoretical Physics Seminars HEP Division Seminar HEP Lunch Seminar HEP
NSF Support for Physics at the Undergraduate Level: A View from Inside
NASA Astrophysics Data System (ADS)
McBride, Duncan
2015-03-01
NSF has supported a wide range of projects in physics that involve undergraduate students. These projects include NSF research grants in which undergraduates participate; Research Experiences for Undergraduates (REU) centers and supplements; and education grants that range from upper-division labs that may include research, to curriculum development for upper- and lower-level courses and labs, to courses for non-majors, to Physics Education Research (PER). The NSF Divisions of Physics, Materials Research, and Astronomy provide most of the disciplinary research support, with some from other parts of NSF. I recently retired as the permanent physicist in NSF's Division of Undergraduate Education (DUE), which supports the education grants. I was responsible for a majority of DUE's physics grants and was involved with others overseen by a series of physics rotators. There I worked in programs entitled Instrumentation and Laboratory Improvement (ILI); Course and Curriculum Development (CCD); Course, Curriculum, and Laboratory Improvement (CCLI); Transforming Undergraduate STEM Education (TUES); and Improving Undergraduate STEM Education (IUSE). NSF support has enabled physics Principal Investigators to change and improve substantially the way physics is taught and the way students learn physics. The most important changes are increased undergraduate participation in physics research; more teaching using interactive engagement methods in classes; and growth of PER as a legitimate field of physics research as well as outcomes from PER that guide physics teaching. In turn these have led, along with other factors, to students who are better-prepared for graduate school and work, and to increases in the number of undergraduate physics majors. In addition, students in disciplines that physics directly supports, notably engineering and chemistry, and increasingly biology, are better and more broadly prepared to use their physics education in these fields. I will describe NSF support for undergraduate physics with both statistics and examples. In addition I will talk about trends in support for undergraduate physics at NSF and speculate about directions such support might go. Contents of this paper reflect the opinions of the author and do not necessarily reflect those of the National Science Foundation.
Fusion Energy Division progress report, 1 January 1990--31 December 1991
DOE Office of Scientific and Technical Information (OSTI.GOV)
Sheffield, J.; Baker, C.C.; Saltmarsh, M.J.
1994-03-01
The Fusion Program of the Oak Ridge National Laboratory (ORNL), a major part of the national fusion program, encompasses nearly all areas of magnetic fusion research. The program is directed toward the development of fusion as an economical and environmentally attractive energy source for the future. The program involves staff from ORNL, Martin Marietta Energy systems, Inc., private industry, the academic community, and other fusion laboratories, in the US and abroad. Achievements resulting from this collaboration are documented in this report, which is issued as the progress report of the ORNL Fusion Energy Division; it also contains information from componentsmore » for the Fusion Program that are external to the division (about 15% of the program effort). The areas addressed by the Fusion Program include the following: experimental and theoretical research on magnetic confinement concepts; engineering and physics of existing and planned devices, including remote handling; development and testing of diagnostic tools and techniques in support of experiments; assembly and distribution to the fusion community of databases on atomic physics and radiation effects; development and testing of technologies for heating and fueling fusion plasmas; development and testing of superconducting magnets for containing fusion plasmas; development and testing of materials for fusion devices; and exploration of opportunities to apply the unique skills, technology, and techniques developed in the course of this work to other areas (about 15% of the Division`s activities). Highlights from program activities during 1990 and 1991 are presented.« less
Wavefront division digital holography
NASA Astrophysics Data System (ADS)
Zhang, Wenhui; Cao, Liangcai; Li, Rujia; Zhang, Hua; Zhang, Hao; Jiang, Qiang; Jin, Guofan
2018-05-01
Digital holography (DH), mostly Mach-Zehnder configuration based, belongs to non-common path amplitude splitting interference imaging whose stability and fringe contrast are environmental sensitive. This paper presents a wavefront division DH configuration with both high stability and high-contrast fringes benefitting from quasi common path wavefront-splitting interference. In our proposal, two spherical waves with similar curvature coming from the same wavefront are used, which makes full use of the physical sampling capacity of the detectors. The interference fringe spacing can be adjusted flexibly for both in-line and off-axis mode due to the independent modulation to these two waves. Only a few optical elements, including the mirror-beam splitter interference component, are used without strict alignments, which makes it robust and easy-to-implement. The proposed wavefront division DH promotes interference imaging physics into the practical and miniaturized a step forward. The feasibility of this method is proved by the imaging of a resolution target and a water flea.
Health physics division annual progress report for period ending June 30, 1977
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1978-07-01
This annual progress report follows, as in the past, the organizational structure of the Health Physics Division. Each part is a report of work done by a section of the division: Assessment and Technology Section (Part I), headed by H.W. Dickson; Biological and Radiation Physics Section (Part II), H.A. Wright; Chemical Physics and Spectroscopy Section (Part III), W.R. Garrett; Emergency Technology Section (Part IV), C.V. Chester, Medical Physics and Internal Dosimetry Section (Part V), K.E. Cowser; and the Analytic Dosimetry and Education Group (Part VI), J.E. Turner.
NASA Astrophysics Data System (ADS)
2013-08-01
A scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS), titled "Near-Earth space hazards and their detection", was held on 27 March 2013 at the conference hall of the Lebedev Physical Institute, RAS. The agenda posted on the website of the Physical Sciences Division, RAS, http://www.gpad.ac.ru, included the following reports: (1) Emel'yanenko V V, Shustov B M (Institute of Astronomy, RAS, Moscow) "The Chelyabinsk event and the asteroid-comet hazard"; (2) Chugai N N (Institute of Astronomy, RAS, Moscow) "A physical model of the Chelyabinsk event"; (3) Lipunov V M (Lomonosov Moscow State University, Sternberg Astronomical Institute, Moscow) "MASTER global network of optical monitoring"; (4) Beskin G M (Special Astrophysical Observatory, RAS, Arkhyz, Karachai-Cirkassian Republic) "Wide-field optical monitoring systems with subsecond time resolution for the detection and study of cosmic threats". The expanded papers written on the base of oral reports 1 and 4 are given below. • The Chelyabinsk event and the asteroid-comet hazard, V V Emel'yanenko, B M Shustov Physics-Uspekhi, 2013, Volume 56, Number 8, Pages 833-836 • Wide-field subsecond temporal resolution optical monitoring systems for the detection and study of cosmic hazards, G M Beskin, S V Karpov, V L Plokhotnichenko, S F Bondar, A V Perkov, E A Ivanov, E V Katkova, V V Sasyuk, A Shearer Physics-Uspekhi, 2013, Volume 56, Number 8, Pages 836-842
Wang, Yi-Wen; Yuan, Jin-Qiang; Gao, Xin; Yang, Xian-Yu
2012-12-01
There are six micronuclear divisions during conjugation of Paramecium caudatum: three prezygotic and three postzygotic divisions. Four haploid nuclei are formed during the first two meiotic prezygotic divisions. Usually only one meiotic product is located in the paroral cone (PC) region at the completion of meiosis, which survives and divides mitotically to complete the third prezygotic division to yield a stationary and a migratory pronucleus. The remaining three located outside of the PC degenerate. The migratory pronuclei are then exchanged between two conjugants and fuse with the stationary pronuclei to form synkarya, which undergo three successive divisions (postzygotic divisions). However, little is known about the surviving mechanism of the PC nuclei. In the current study, stage-specific appearance of cytoplasmic microtubules (cMTs) was indicated during the third prezygotic division by immunofluorescence labeling with anti-alpha tubulin antibodies surrounding the surviving nuclei, including the PC nuclei and the two types of prospective pronuclei. This suggested that cMTs were involved in the formation of a physical barrier, whose function may relate to sequestering and protecting the surviving nuclei from the major cytoplasm, where degeneration of extra-meiotic products occurs, another important nuclear event during the third prezygotic division.
Weak Interactions Group UC Berkeley UC Berkeley Physics Lawrence Berkeley Lab Nuclear Science Division at LBL Physics Division at LBL Phonebook A-Z Index Navigation Home Members Research Projects CUORE Design Concept Berkeley Projects People Publications Contact Links KamLAND Physics Impact Neutrino
2008-10-01
Epidemiology Report No. 12-HF-05SR-05, September 2005 – October 2008 5 especially for fractures and for bone and soft-tissue injuries, in two...more in-theater hospitalizations,(22, 23) so that service members required less “ delayed ” postdeployment hospitalization. (6) Postdeployment...lower body overuse-type injuries and includes diagnoses such as stress fractures , stress reactions, tendonitis, bursitis, fasciitis, arthralgia
HEP Division Argonne National Laboratory
Design Neutrino Physics Theoretical Physics Seminars HEP Division Seminar HEP Lunch Seminar HEP Theory administrators theory users trice users HEP webmaster U.S. Department of Energy Office of Science | UChicago
Transforming a fourth year modern optics course using a deliberate practice framework
NASA Astrophysics Data System (ADS)
Jones, David J.; Madison, Kirk W.; Wieman, Carl E.
2015-12-01
[This paper is part of the Focused Collection on Upper Division Physics Courses.] We present a study of active learning pedagogies in an upper-division physics course. This work was guided by the principle of deliberate practice for the development of expertise, and this principle was used in the design of the materials and the orchestration of the classroom activities of the students. We present our process for efficiently converting a traditional lecture course based on instructor notes into activities for such a course with active learning methods. Ninety percent of the same material was covered and scores on common exam problems showed a 15% improvement with an effect size greater than 1 after the transformation. We observe that the improvement and the associated effect size is sustained after handing off the materials to a second instructor. Because the improvement on exam questions was independent of specific problem topics and because the material tested was so mathematically advanced and broad (including linear algebra, Fourier transforms, partial differential equations, and vector calculus), we expect the transformation process could be applied to most upper-division physics courses having a similar mathematical base.
Laboratory directed research and development program FY 1997
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
1998-03-01
This report compiles the annual reports of Laboratory Directed Research and Development projects supported by the Berkeley Lab. Projects are arranged under the following topical sections: (1) Accelerator and fusion research division; (2) Chemical sciences division; (3) Computing Sciences; (4) Earth sciences division; (5) Environmental energy technologies division; (6) life sciences division; (7) Materials sciences division; (8) Nuclear science division; (9) Physics division; (10) Structural biology division; and (11) Cross-divisional. A total of 66 projects are summarized.
Annual Historical Report Calendar Year 1993
1994-04-01
Physical Training, 16. PRICE CODE Military Performance, Military Nutrition , Military Psychology. 17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19... Nutrition Division . . . . . . . . . . 97 Military Performance & Neuroscience Division . 115 Occupational Medicine Division ........ .130 Occupational...Directorate, Dr. James A. Vogel, Director. The Directorate incorporates the Military Nutrition Division, the Military Performance and Neuroscience Division
Fusion energy division annual progress report, period ending December 31, 1980
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1981-11-01
The ORNL Program encompasses most aspects of magnetic fusion research including research on two magnetic confinement programs (tokamaks and ELMO bumpy tori); the development of the essential technologies for plasma heating, fueling, superconducting magnets, and materials; the development of diagnostics; the development of atomic physics and radiation effect data bases; the assessment of the environmental impact of magnetic fusion; the physics and engineering of present-generation devices; and the design of future devices. The integration of all of these activities into one program is a major factor in the success of each activity. An excellent example of this integration is themore » extremely successful application of neutral injection heating systems developed at ORNL to tokamaks both in the Fusion Energy Division and at Princeton Plasma Physics Laboratory (PPPL). The goal of the ORNL Fusion Program is to maintain this balance between plasma confinement, technology, and engineering activities.« less
A Deliberate Practice Instructional Approach for Upper Division Physics Courses
NASA Astrophysics Data System (ADS)
Jones, David
2015-05-01
In upper division physics courses, an overarching educational goal is to have students think about and use the material much as a practicing physicist in the field does. Specifically, this would include knowledge (such as concepts, formalism, and instruments), approaches, and metacognitive skills that physicists use in solving ``typical'' (research context) problems to both understand and predict physical observations and accompanying models. Using an interactive instructional approach known as deliberate practice (described earlier in this session) we will discuss our work on how to provide students with the necessary practice and feedback to achieve these skills in a core DAMOP course of modern optics. We present the results of a direct and explicit comparison between this approach and traditional lecture-based instruction revealing evidence that a significant improvement of the students' mastery of these skills occurs when deliberate practice is employed. Our work was supported by the University of British Columbia through the CWSEI.
Publications - GMC 70 | Alaska Division of Geological & Geophysical Surveys
DGGS GMC 70 Publication Details Title: Core permeability determinations and other related physical determinations and other related physical analyses of 20 North Slope wells: Alaska Division of Geological &
Space physics educational outreach
NASA Technical Reports Server (NTRS)
Copeland, Richard A.
1995-01-01
The goal of this Space Physics Educational Outreach project was to develop a laboratory experiment and classroom lecture on Earth's aurora for use in lower division college physics courses, with the particular aim of implementing the experiment and lecture at Saint Mary's College of California. The strategy is to teach physics in the context of an interesting natural phenomenon by investigating the physical principles that are important in Earth's aurora, including motion of charged particles in electric and magnetic fields, particle collisions and chemical reactions, and atomic and molecular spectroscopy. As a by-product, the undergraduate students would develop an appreciation for naturally occurring space physics phenomena.
Physics Division annual report, 1 January-31 December 1984
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1985-10-01
A brief overview of each of the several areas of research is given with a list of resulting publications. Areas of research include electron-positron annihilation, neutrino interactions, neutrinoless double beta decay of /sup 100/Mo, double beta decay of /sup 76/Ge, antiproton-proton interactions, right-handed gauge boson effects, muon decay asymmetry parameter measurements, supernovae detection, Nemesis search, and detector development. Areas of theoretical research include electroweak interactions, strong interactions, nonperturbative dynamics, supersymmetry, and cosmology and particle physics. 34 figs. (WRF)
NASA Astrophysics Data System (ADS)
Sousa, J. B.
1991-01-01
The 10th General Conference of the Condensed Matter Division of the European Physical Society was held in Lisbon from 9 to 12 April 1990; it was attended by 670 scientists from 28 countries of Europe and overseas. Following the tradition of the series, the Lisbon EPS Conference covered most of the relevant topics in Condensed Matter Physics, organized in three major Symposia: Soft Matter and Polymers, Solid State Physics and The Physics of Materials for future Electronics. The last Symposium was jointly organized with the European Materials Research Society, starting a timely cooperation between both European Societies in important scientific and technological areas of common interest. The Conference included 4 plenary lectures, 69 invited talks and 440 contributions in poster sessions. The present volume T35 of the Topical Issues of Physica Scripta, contains papers of the invited talks. The motivation of this volume is to present a wider information of the contents of the Conference, and also to offer to the participants, and in particular to the younger ones, the opportunity of a deeper personal analysis of the ideas and concepts that have been under discussion during the four days of the Conference. The local organization of the Conference was the responsibility of the Portuguese Physical Society, through its Division of Condensed Matter Physics. The event substituted in 1990 the Iberian Symposium on Condensed Matter Physics, which is regularly and alternatively organized in Spain and Portugal every two years, under the special sponsorship of Unesco. We wish to express our thanks to the Conference Committees, to the authors and the individuals who contributed to the contents of the Conference. A special acknowledgement is due to the Sponsors for their generous support of this event.
The final cut: cell polarity meets cytokinesis at the bud neck in S. cerevisiae.
Juanes, Maria Angeles; Piatti, Simonetta
2016-08-01
Cell division is a fundamental but complex process that gives rise to two daughter cells. It includes an ordered set of events, altogether called "the cell cycle", that culminate with cytokinesis, the final stage of mitosis leading to the physical separation of the two daughter cells. Symmetric cell division equally partitions cellular components between the two daughter cells, which are therefore identical to one another and often share the same fate. In many cases, however, cell division is asymmetrical and generates two daughter cells that differ in specific protein inheritance, cell size, or developmental potential. The budding yeast Saccharomyces cerevisiae has proven to be an excellent system to investigate the molecular mechanisms governing asymmetric cell division and cytokinesis. Budding yeast is highly polarized during the cell cycle and divides asymmetrically, producing two cells with distinct sizes and fates. Many components of the machinery establishing cell polarization during budding are relocalized to the division site (i.e., the bud neck) for cytokinesis. In this review we recapitulate how budding yeast cells undergo polarized processes at the bud neck for cell division.
Code of Federal Regulations, 2014 CFR
2014-01-01
... applicant for chemical, physical, or microbiological analyses and tests at a Science and Technology Division... Science and Technology Division laboratory, or by a laboratory approved and recognized by the Division to... quality control of procedures. Official plant or Science and Technology Division laboratories can analyze...
Code of Federal Regulations, 2013 CFR
2013-01-01
... applicant for chemical, physical, or microbiological analyses and tests at a Science and Technology Division... Science and Technology Division laboratory, or by a laboratory approved and recognized by the Division to... quality control of procedures. Official plant or Science and Technology Division laboratories can analyze...
Code of Federal Regulations, 2012 CFR
2012-01-01
... applicant for chemical, physical, or microbiological analyses and tests at a Science and Technology Division... Science and Technology Division laboratory, or by a laboratory approved and recognized by the Division to... quality control of procedures. Official plant or Science and Technology Division laboratories can analyze...
ERIC Educational Resources Information Center
Miller, Christina L.
2014-01-01
The purpose of this study is to determine the relationship between physical distance from the headquarters, number of years working within the Division of Agriculture, and job title compared to mission statement and goal focus. The Division of Agriculture as part of the University of Arkansas System is a unique organization because many of its…
Annual Historical Report Calendar Year 1992
1993-04-01
Environmental Stress, Exercise Physiology, Physical Training, 16. PRICE CODE Military Performance, Military Nutrition , Military Psychology. 17. SECURITY...63 Occupational Health & Performance Directorate . . . 84 Military Nutrition Division ........ ........... 87 Military Performance...Military Nutrition Division, the Military Performance and Neuroscience Division, the Occupational Medicine Division, and the Occupational Physiology
Comparison of FDMA and CDMA for second generation land-mobile satellite communications
NASA Technical Reports Server (NTRS)
Yongacoglu, A.; Lyons, R. G.; Mazur, B. A.
1990-01-01
Code Division Multiple Access (CDMA) and Frequency Division Multiple Access (FDMA) (both analog and digital) systems capacities are compared on the basis of identical link availabilities and physical propagation models. Parameters are optimized for a bandwidth limited, multibeam environment. For CDMA, the benefits of voice activated carriers, antenna discrimination, polarization reuse, return link power control and multipath suppression are included in the analysis. For FDMA, the advantages of bandwidth efficient modulation/coding combinations, voice activated carriers, polarization reuse, beam placement, and frequency staggering were taken into account.
ERIC Educational Resources Information Center
Walker, Jearl
1979-01-01
Describes a student investigation of a reverse flame in a atmosphere of methane that won second place in the physics division of the International Science and Engineering Fair. Includes a discussion of falling and fracturing behavior, specifically dealing with chimneys, trees, pencil point, stirring rods, and chalk. (BT)
Helping Students Come to Grips with the Meaning of Division
ERIC Educational Resources Information Center
Aubrecht, Gordon J., II
2004-01-01
Many years ago, Arons pointed out the incomprehension science students exhibit of the basic mathematical operations multiplication and division and the need to address the problem in physics classes to assure student understanding of the physical world. McDermott et al.'s Physics by Inquiry program does address this need directly and in detail (by…
The Physics Entrepreneurship Program at Case Western Reserve University
NASA Astrophysics Data System (ADS)
Taylor, Cyrus
2001-10-01
The Physics Entrepreneurship Program is a new, two-year Master's Program designed to empower physicists as entrepreneurs. Launched by the Dept. of Physics at Case Western Reserve University in close cooperation with the Weatherhead School of Management, the program is now in its second year. This innovative new program has already attracted important attention from the business community, including seed funding of a student launched venture, international press coverage, including an article in Business Week, and government interest, including an invitation to brief the Advisory Board of the Mathematical and Physical Sciences Division of the National Science Foundation. This talk will discuss the structure and content of the program, the lessons we are learning, and early indicators of success including a student-launched new business venture that has already secured more than $ 250,000 in seed funding.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Putnam, T.M.
This report presents the objectives, organization, policies, and essential rules and procedures that have been adopted by MP Division and that form the basis of the Health and Safety Program of the Clinton P. Anderson Meson Physics Facility (LAMPF). The facility includes the beam-delivery systems for the Los Alamos Neutron Scattering Center and the Weapons Neutron Research Facility (LANSCE/WNR). The program is designed not only to assure the health and safety of all personnel, including users, in their work at LAMPF, and of MP-Division staff in their work on the LANSCE/WNR beam lines, but also to protect the facility (buildingsmore » and equipment) and the environment. 33 refs., 18 figs., 2 tabs.« less
ERIC Educational Resources Information Center
Cylke, Frank Kurt
This testimony on the National Library Service for the Blind and Physically Handicapped, Library of Congress (NLS) provides information on: (1) NLS authority; (2) background; (3) functions and responsibilities; (4) Office of the Director; (5) director; (6) management; (7) budget; (8) division/section/office functions, including the Administrative…
Identifying student difficulties with entropy, heat engines, and the Carnot cycle
NASA Astrophysics Data System (ADS)
Smith, Trevor I.; Christensen, Warren M.; Mountcastle, Donald B.; Thompson, John R.
2015-12-01
[This paper is part of the Focused Collection on Upper Division Physics Courses.] We report on several specific student difficulties regarding the second law of thermodynamics in the context of heat engines within upper-division undergraduate thermal physics courses. Data come from ungraded written surveys, graded homework assignments, and videotaped classroom observations of tutorial activities. Written data show that students in these courses do not clearly articulate the connection between the Carnot cycle and the second law after lecture instruction. This result is consistent both within and across student populations. Observation data provide evidence for myriad difficulties related to entropy and heat engines, including students' struggles in reasoning about situations that are physically impossible and failures to differentiate between differential and net changes of state properties of a system. Results herein may be seen as the application of previously documented difficulties in the context of heat engines, but others are novel and emphasize the subtle and complex nature of cyclic processes and heat engines, which are central to the teaching and learning of thermodynamics and its applications. Moreover, the sophistication of these difficulties is indicative of the more advanced thinking required of students at the upper division, whose developing knowledge and understanding give rise to questions and struggles that are inaccessible to novices.
Jacq, Maxime; Arthaud, Christopher; Manuse, Sylvie; Mercy, Chryslène; Bellard, Laure; Peters, Katharina; Gallet, Benoit; Galindo, Jennifer; Doan, Thierry; Vollmer, Waldemar; Brun, Yves V; VanNieuwenhze, Michael S; Di Guilmi, Anne Marie; Vernet, Thierry; Grangeasse, Christophe; Morlot, Cecile
2018-05-15
Bacterial division is intimately linked to synthesis and remodeling of the peptidoglycan, a cage-like polymer that surrounds the bacterial cell, providing shape and mechanical resistance. The bacterial division machinery, which is scaffolded by the cytoskeleton protein FtsZ, includes proteins with enzymatic, structural or regulatory functions. These proteins establish a complex network of transient functional and/or physical interactions which preserve cell shape and cell integrity. Cell wall hydrolases required for peptidoglycan remodeling are major contributors to this mechanism. Consistent with this, their deletion or depletion often results in morphological and/or division defects. However, the exact function of most of them remains elusive. In this work, we show that the putative lysozyme activity of the cell wall hydrolase Pmp23 is important for proper morphology and cell division in the opportunistic human pathogen Streptococcus pneumoniae. Our data indicate that active Pmp23 is required for proper localization of the Z-ring and the FtsZ-positioning protein MapZ. In addition, Pmp23 localizes to the division site and interacts directly with the essential peptidoglycan synthase PBP2x. Altogether, our data reveal a new regulatory function for peptidoglycan hydrolases.
Higher Education: Teaching about the Colonization of Space.
ERIC Educational Resources Information Center
Huebner, Jay S.
1980-01-01
Describes an upper-division science course offered at the University of North Florida, Colonization of Space. The course presents several current issues in the areas of physical science and includes topics in science and technology likely to influence the future lives of present college students. (CS)
Köklü, Yusuf; Alemdaroğlu, Utku; Koçak, Fatma Ünver; Erol, A. Emre; Fındıkoğlu, Gülin
2011-01-01
The purpose of the present study was to compare chosen physical fitness characteristics of Turkish professional basketball players in different divisions (first and second division) and playing positions. Forty-five professional male basketball players (14 guards, 15 forwards, 16 centers) participated in this study voluntarily. For each player, anthropometric measurements were performed, as well as a multi-stage 20 m shuttle run, isokinetic leg strength, squat jump (SJ), countermovement jump (CMJ), 10–30 meter single-sprint and T-drill agility tests. The differences in terms of division were evaluated by independent t-test and the differences by playing position were evaluated by one-way ANOVA with Post Hoc Tukey test. First division players’ CMJ measurements were significantly higher than those of second division players’ (p≤0.05), whereas second division players’ 10 m sprint times were significantly better than those of first division players’ (p≤0.05). In addition, forwards and centers were significantly taller than guards. Centers were significantly heavier and their T-drill test performances were inferior to those of forwards and guards (p≤0.05). Moreover, guards had a significantly higher maximal oxygen uptake (VO2 max) than centers. Guards and forwards showed significantly better performance in the 10 and 30 m sprint tests than centers (p≤0.05). Forwards and centers had significantly better left leg flexor strength at 180°.s−1(p≤0.05). In conclusion, the findings of the present study indicated that physical performance of professional basketball players differed among guards, forwards and centers, whereas there were not significant differences between first and second division players. According to the present study, court positions have different demands and physical attributes which are specific to each playing position in professional basketball players. Therefore, these results suggest that coaches should tailor fitness programs according to specific positions on the court. PMID:23486863
Köklü, Yusuf; Alemdaroğlu, Utku; Koçak, Fatma Ünver; Erol, A Emre; Fındıkoğlu, Gülin
2011-12-01
The purpose of the present study was to compare chosen physical fitness characteristics of Turkish professional basketball players in different divisions (first and second division) and playing positions. Forty-five professional male basketball players (14 guards, 15 forwards, 16 centers) participated in this study voluntarily. For each player, anthropometric measurements were performed, as well as a multi-stage 20 m shuttle run, isokinetic leg strength, squat jump (SJ), countermovement jump (CMJ), 10-30 meter single-sprint and T-drill agility tests. The differences in terms of division were evaluated by independent t-test and the differences by playing position were evaluated by one-way ANOVA with Post Hoc Tukey test. First division players' CMJ measurements were significantly higher than those of second division players' (p≤0.05), whereas second division players' 10 m sprint times were significantly better than those of first division players' (p≤0.05). In addition, forwards and centers were significantly taller than guards. Centers were significantly heavier and their T-drill test performances were inferior to those of forwards and guards (p≤0.05). Moreover, guards had a significantly higher maximal oxygen uptake (VO2 max) than centers. Guards and forwards showed significantly better performance in the 10 and 30 m sprint tests than centers (p≤0.05). Forwards and centers had significantly better left leg flexor strength at 180°.s(-1)(p≤0.05). In conclusion, the findings of the present study indicated that physical performance of professional basketball players differed among guards, forwards and centers, whereas there were not significant differences between first and second division players. According to the present study, court positions have different demands and physical attributes which are specific to each playing position in professional basketball players. Therefore, these results suggest that coaches should tailor fitness programs according to specific positions on the court.
Advances in Solid State Physics
NASA Astrophysics Data System (ADS)
Kramer, Bernhard
The present volume 45 of Advances in Solid-State Physics contains the written versions of selected invited lectures from the spring meeting of the Arbeitskreis Festkörperphysik of the Deutsche Physikalische Gesellschaft in the World Year of Physics 2005, the Einstein Year, which was held from 4 - 11 March 2005 in Berlin, Germany. Many topical talks given at the numerous symposia are included. Most of these were organized collaboratively by several of the divisions of the Arbeitskreis. The book presents, to some extent, the status of the field of solid-state physics in 2005 not only in Germany but also internationally.
Upper-Division Student Difficulties with the Dirac Delta Function
ERIC Educational Resources Information Center
Wilcox, Bethany R.; Pollock, Steven J.
2015-01-01
The Dirac delta function is a standard mathematical tool that appears repeatedly in the undergraduate physics curriculum in multiple topical areas including electrostatics, and quantum mechanics. While Dirac delta functions are often introduced in order to simplify a problem mathematically, students still struggle to manipulate and interpret them.…
Libraries for the Blind Section. Libraries Serving the General Public Division. Papers.
ERIC Educational Resources Information Center
International Federation of Library Associations, The Hague (Netherlands).
Papers on library services and developments in reading materials for the blind, which were presented at the 1983 International Federation of Library Associations (IFLA) conference, include: (1) "Reading Programs for the Blind and Physically Handicapped in Public Libraries of the Polish People's Republic" by Franciszek Czajkowski…
NASA Astrophysics Data System (ADS)
Moldwin, M.; Morrow, C. A.; White, S. C.; Ivie, R.
2014-12-01
Members of the Education & Workforce Working Group and the American Institute of Physics (AIP) conducted the first ever National Demographic Survey of working professionals for the 2012 National Academy of Sciences Solar and Space Physics Decadal Survey to learn about the demographics of this sub-field of space science. The instrument contained questions for participants on: the type of workplace; basic demographic information regarding gender and minority status, educational pathways (discipline of undergrad degree, field of their PhD), how their undergraduate and graduate student researchers are funded, participation in NSF and NASA funded spaceflight missions and suborbital programs, and barriers to career advancement. Using contact data bases from AGU, the American Astronomical Society's Solar Physics Division (AAS-SPD), attendees of NOAA's Space Weather Week and proposal submissions to NSF's Atmospheric, Geospace Science Division, the AIP's Statistical Research Center cross correlated and culled these data bases resulting in 2776 unique email addresses of US based working professionals. The survey received 1305 responses (51%) and generated 125 pages of single space answers to a number of open-ended questions. This talk will summarize the highlights of this first-ever demographic survey including findings extracted from the open-ended responses regarding barriers to career advancement which showed significant gender differences.
Cardiovascular preparticipation screening practices of college team physicians.
Asplund, Chad A; Asif, Irfan M
2014-07-01
Determine the cardiovascular screening practices of college team physicians. Cross-sectional survey. Electronic mail with a link to a 9-item survey. American Medical Society for Sports Medicine college team physicians. Screening practices survey administered to college team physicians. Cardiovascular preparticipation screening practices including noninvasive cardiac screening (NICS) such as electrocardiogram (ECG) or echocardiogram. Two hundred twenty-four of 613 AMSSM members identifying themselves as college team physicians (36.5%) responded: National Collegiate Athletic Association Division I: 146, Division II: 41, Division III: 27, National Association of Intercollegiate Athletics: 8, and Junior College: 2. The majority (78%) of schools conducted the American Heart Association (AHA) 12-element history and physical examination. Division I institutions were more likely to add an ECG and/or echocardiogram (30%) to their preparticipation examination (PPE) compared with lower divisions (P < 0.0001). Those Division I schools using NICS were more likely to do so for all athletes (P < 0.001) or revenue generating sports (P < 0.001), whereas other institutions did so only for high-risk subgroups (P < 0.01). Lower division schools would consider adding ECG if it cost less (P = 0.01) or if there were more local expertise in athlete-specific interpretation standards (P = 0.04). Many National Collegiate Athletic Association Athletes Division I programs already use NICS to screen athletes, whereas a significant portion of lower division schools add ECG for athletes deemed high risk. Increased use of these modalities suggests limitations of traditional PPE screening methods. This is the first study to assess cardiac screening practices across all collegiate divisions and broadens our understanding of cardiac screening in high-level athletes.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
The goals and accomplishments of the Energy Division of Oak Ridge National Laboratory are described in this annual progress report for Fiscal Year (FY) 1988. The Energy Division is a multidisciplinary research organization committed to (1) increasing the knowledge and understanding of the way society makes choices in energy use and energy-using technologies, (2) improving society's understanding of the environmental implications of changes in energy technology, and (3) improving and developing new energy-efficient technologies. The Energy Division's programmatic activities focus on four major areas: (1) analysis and assessment, (2) transportation and decision systems research, (3) technology research and development formore » improving the efficiency of energy and end-use technologies, and (4) electric power systems. The Division's total expenditures in FY 1988 were $44.3 million. The work is supported by the US Department of Energy, US Department of Defense, many other federal agencies, and some private organizations. Disciplines of the 139 staff members include engineering, social sciences, physical and life sciences, and mathematics and statistics.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Mann, Reinhold C.
This is the first formal progress report issued by the ORNL Life Sciences Division. It covers the period from February 1997 through December 1998, which has been critical in the formation of our new division. The legacy of 50 years of excellence in biological research at ORNL has been an important driver for everyone in the division to do their part so that this new research division can realize the potential it has to make seminal contributions to the life sciences for years to come. This reporting period is characterized by intense assessment and planning efforts. They included thorough scrutinymore » of our strengths and weaknesses, analyses of our situation with respect to comparative research organizations, and identification of major thrust areas leading to core research efforts that take advantage of our special facilities and expertise. Our goal is to develop significant research and development (R&D) programs in selected important areas to which we can make significant contributions by combining our distinctive expertise and resources in the biological sciences with those in the physical, engineering, and computational sciences. Significant facilities in mouse genomics, mass spectrometry, neutron science, bioanalytical technologies, and high performance computing are critical to the success of our programs. Research and development efforts in the division are organized in six sections. These cluster into two broad areas of R&D: systems biology and technology applications. The systems biology part of the division encompasses our core biological research programs. It includes the Mammalian Genetics and Development Section, the Biochemistry and Biophysics Section, and the Computational Biosciences Section. The technology applications part of the division encompasses the Assessment Technology Section, the Environmental Technology Section, and the Toxicology and Risk Analysis Section. These sections are the stewards of the division's core competencies. The common mission of the division is to advance science and technology to understand complex biological systems and their relationship with human health and the environment.« less
Physical qualities and activity profiles of sub-elite and recreational Australian football players.
Stein, Josh G; Gabbett, Tim J; Townshend, Andrew D; Dawson, Brian T
2015-11-01
To investigate the relationship between physical qualities and match activity profiles of recreational Australian football players. Prospective cohort study. Forty players from three recreational Australian football teams (Division One, Two and Three) underwent a battery of fitness tests (vertical jump, 10 and 40 m sprint, 6 m × 30 m repeated sprint test, Yo-Yo intermittent recovery level Two and 2-km time trial). The activity profiles of competitive match-play were quantified using 10-Hz Global Positioning System units. Division One players possessed greater maximum velocity, Yo-Yo level Two and 2-km time trial performances than Division Two and Three players. In addition, Division One players covered greater relative distance, and relative distances at moderate- and high-intensities during match-play than Division Two and Three players. Division Two players had better 2-km time trial performances than Division Three players. Positive associations (P < 0.05) were found between 10 m acceleration, maximum velocity, Yo-Yo level Two and 2-km time trial performances and relative distance, and relative distances covered at moderate- and high-intensities during match-play. Moderate relationships were found between vertical jump and relative distance and high-intensity running. Sub-elite Australian football players competing at a higher level exhibit greater physical qualities and match-play activity profiles than lesser-skilled recreational players. Acceleration and maximum velocity, 2-km time trial and Yo-Yo level Two performances discriminate between players of different playing levels, and are related to physical match performance in recreational Australian football. The development of these qualities is likely to contribute to improved match performance in recreational Australian football players. Copyright © 2014 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
ERIC Educational Resources Information Center
Wilcox, Bethany R.; Pollock, Steven J.
2014-01-01
Free-response research-based assessments, like the Colorado Upper-division Electrostatics Diagnostic (CUE), provide rich, fine-grained information about students' reasoning. However, because of the difficulties inherent in scoring these assessments, the majority of the large-scale conceptual assessments in physics are multiple choice. To increase…
Fischer-Friedrich, Elisabeth; Friedrich, Benjamin M; Gov, Nir S
2012-02-01
In many bacterial species, the protein FtsZ forms a cytoskeletal ring that marks the future division site and scaffolds the division machinery. In rod-shaped bacteria, most frequently membrane-attached FtsZ rings or ring fragments are reported and occasionally helices. By contrast, axial FtsZ clusters have never been reported. In this paper, we investigate theoretically how dynamic FtsZ aggregates align in rod-shaped bacteria. We study systematically different physical mechanisms that affect the alignment of FtsZ polymers using a computational model that relies on autocatalytic aggregation of FtsZ filaments at the membrane. Our study identifies a general tool kit of physical and geometrical mechanisms by which rod-shaped cells align biopolymer aggregates. Our analysis compares the relative impact of each mechanism on the circumferential alignment of FtsZ as observed in rod-shaped bacteria. We determine spontaneous curvature of FtsZ polymers and axial confinement of FtsZ on the membrane as the strongest factors. Including Min oscillations in our model, we find that these stabilize axial and helical clusters on short time scales, but promote the formation of an FtsZ ring at the cell middle at longer times. This effect could provide an explanation to the long standing puzzle of transiently observed oscillating FtsZ helices in Escherichia coli cells prior to cell division.
Studio optics: Adapting interactive engagement pedagogy to upper-division physics
NASA Astrophysics Data System (ADS)
Sorensen, Christopher M.; McBride, Dyan L.; Rebello, N. Sanjay
2011-03-01
The use of interactive engagement strategies to improve learning in introductory physics is not new, but have not been used as often for upper-division physics courses. We describe the development and implementation of a Studio Optics course for upper-division physics majors at Kansas State University. The course adapts a three-stage Karplus learning cycle and other elements to foster an environment that promotes learning through an integration of lecture, laboratories, and problem solving. Some of the instructional materials are described. We discuss the evaluation of the course using data collected from student interviews, a conceptual survey, an attitudinal survey, and the instructor's reflections. Overall, students responded positively to the new format and showed modest gains in learning. The instructor's experiences compared favorably with the traditional course that he had taught in the past.
NASA Astrophysics Data System (ADS)
Chakraborty, Sagnik
2018-03-01
We present a general framework for the information backflow (IB) approach of Markovianity that not only includes a large number, if not all, of IB prescriptions proposed so far but also is equivalent to completely positive divisibility for invertible evolutions. Following the common approach of IB, where monotonic decay of some physical property or some information quantifier is seen as the definition of Markovianity, we propose in our framework a general description of what should be called a proper "physicality quantifier" to define Markovianity. We elucidate different properties of our framework and use them to argue that an infinite family of non-Markovianity measures can be constructed, which would capture varied strengths of non-Markovianity in the dynamics. Moreover, we show that generalized trace-distance measure in two dimensions serve as a sufficient criteria for IB Markovianity for a number of prescriptions suggested earlier in the literature.
30 years of Physics Education Research at the University of Washington
NASA Astrophysics Data System (ADS)
Shaffer, Peter S.
2017-01-01
Over the past 30 years, members of the UW Physics Education Group have examined student learning in courses serving a wide range of populations. Most of the focus has been on elementary, middle, and high school teachers and students in introductory university physics courses, but more recently, the effort has expanded to include physics majors in upper-division courses on quantum mechanics and electrodynamics. In general, the group has taken a practical approach that focuses on identifying instructional strategies that are effective at promoting conceptual understanding and student reasoning ability. Examples will be drawn from across these courses to illustrate common themes and connections.
Operational Environmental Assessment
1988-09-01
Chemistry Branch - Physical Chemistry Branch " Analytical Research Division - Analytical Systems Branch - Methodology Research Branch - Spectroscopy Branch...electromagnetic frequency spec- trum and includes radio frequencies, infrared , visible light, ultraviolet, X-rays and gamma rays (in ascending order of...Verruculogen Aflatrem Picrotoxin Ciguatoxin Mycotoxins Simple Tr ichothecenes T-2 Toxin T-2 Tetraol Neosolaniol * Nivalenol Deoxynivalenol Verrucarol B-3 B lank
Division of Adolescent and School Health School Health Programs, 2008. At a Glance
ERIC Educational Resources Information Center
Centers for Disease Control and Prevention, 2008
2008-01-01
Six priority health risk behaviors contribute to the leading causes of death, disability, and social problems in the United States. These behaviors are often established during childhood and adolescence. They include tobacco use; unhealthy dietary behaviors; inadequate physical activity; alcohol and other drug use; sexual behaviors that may result…
ERIC Educational Resources Information Center
Myers, Marvin L.; And Others
Presented by the Master Planning Committee of the Colorado Department of Institutions and the Division of Developmental Disabilities is a behavior inventory of sequential skills in four areas basic to the normalization of developmentally disabled persons. Instructional objectives are listed in the following areas: physical, including perceptual…
The Peoples Republic of China High-Frequency Gravitational Wave Research Program
NASA Astrophysics Data System (ADS)
Baker, Robert M. L.
2009-03-01
For the past decade the Peoples Republic of China has been increasingly active in the pursuit of High-Frequency Gravitational Wave (HFGW) research. Much of their progress has been during 2008. An epochal achievement was the publication of the theoretical analysis of the Li-Baker HFGW detector in the European Physical Journal C (Li, et al., 2008), "Perturbative Photon Fluxes Generated by High-Frequency Gravitational Waves and Their Physical Effects"). Many Chinese scientists and graduate students have participated in these HFGW studies and their contributions are briefly discussed. Some of the key scientists and their institutions are as follows: first from Chongqing University: Zhenyun Fang, Director of the Institute of Theoretical Physics, Xing gang Wu, The Institute of Theoretical Physics, Nan Yang, The Institute of Gravitational Physics; Jun Luo, Huazhong University of Science and Technology (HUST), Wuhan, China, the Head of Gravitational Laboratory, Yang Zhang, University of Science and Technology of China, Associate Dean of the College of Sciences, Biao Li, Institute of Electronic Engineering of China Academy of Engineering Physics (CAEP), Chief of Microwave Antenna Division, Chuan-Ming Zhou, Technology Committee of Institute of Electronic Engineering of the CAEP, Jie Zhou, Institute of Electronic Engineering of the CAEP, Chief of the Signal Processing Division; Weijia Wen, Department of Physics, The Hong Kong University of Science and Technology. This Chinese HFGW team includes two parts: (1) Theoretical study and (2) Experimental investigation. These two parts have closed relations, and many cross projects, including cooperation between the American GravWave and Chinese HFGW teams. Referring to financial support, The Institute of Electronic Engineering (i.e., Microwave Laboratory) has already (June 2008) provided support more than three million Yuan for the HFGW detection project and this activity is discussed.
Space physics strategy: Implementation study. Volume 2: Program plan
NASA Technical Reports Server (NTRS)
1991-01-01
In June, 1989, the Space Science and Applications Advisory Committee (SSAAC) authorized its Space Physics Subcommittee (SPS) to prepare a plan specifying the future missions, launch sequence, and encompassing themes of the Space Physics Division. The plan, now complete, is the product of a year-long study comprising two week-long workshops - in January and June 1990 - assisted by pre-workshop, inter-workshop, and post-workshop preparation and assessment activities. The workshops engaged about seventy participants, drawn equally from the Division's four science disciplines: cosmic and heliospheric physics, solar physics, magnetosphere physics, and ionosphere-thermosphere-mesospheric physics. An earlier report records the outcome of the first workshop; this is the report of the final workshop.
Physical punishment of children: can we continue to accept the status quo?
Oates, Kim
2011-08-01
All children require discipline, although physical punishment is just one form of discipline. Parental use of physical punishment is inter-generational. There is now evidence that physical punishment of children is not only less effective than other forms of discipline but can also lead to aggressive behaviour in childhood and adult life. Twenty-nine countries, including New Zealand, have laws against physical punishment in the home. Australian attitudes are slowly changing in favour of less use of physical punishment, but there is a long way to go. As advocates for children, paediatricians should not be content to accept the status quo. © 2011 The Author. Journal of Paediatrics and Child Health © 2011 Paediatrics and Child Health Division (Royal Australasian College of Physicians).
An Insider's History of Some of the Significant Changes In the APS from the 1960s to Today
NASA Astrophysics Data System (ADS)
Schwartz, Brian
2014-03-01
It has been over 50 years since I first joined the American Physical Society. A lot has changed. The APS in the 60s did not have a single Forum and all divisions were related to sub-field of physics research plus the History of Physics Division. The APS governance and meeting's structure did not provide for issues relate to physics and society, undergraduate and graduate education, minorities, women, industrial physics, international physics, communication of science, and many more subjects quite typical of APS in 2014. From the start, I was a very active member of APS and one of the original petitioners for the Division on Physics and Society. Ultimately this led to the APS Forum structure, the Panel on Public Affairs and many APS formal committees. Two of the major impetuses for change in the late 60s were the need to debate the role of science in the unpopular war in Vietnam and the overproduction and poor employment prospects for new Ph.D.s. I, and colleagues, (with little original encouragement from the APS leadership), arranged for the discussion on many new topics at the meeting and proposed changes within the governance of the Society. In the late 1980s I joined the APS and was involved in many changes over the next 20 years. ultimately as Associate Executive Officer and Director of the APS Centennial in 1999. As indicated earlier, I've been with the APS for over 50 years and will present its history as a participant-insider. Topic covered include my surprise election to the APS governance in 1972, the establishment of the Forum on Physics and Society (and the restrictions imposed on its governance), my role as the father (or mother) of the women's movement at APS, the complexities and politics of the move of APS headquarters from New York to College Park, the establishment of the tabloid APS News and many more subjects. Currently I am producing staged-readings of science-based plays at the March and April 2014 APS meetings for the Forum on History of Physics. Supported in part by the National Science Foundation.
USDA-ARS?s Scientific Manuscript database
This work is devoted to review the new scientific divisions that emerged in agrophysics in the last 10-15 years. Among them are the following: 1) application of Adaptive Neuro-Fuzzy Inference System (ANFIS), 2) development and application of fuzzy indicator modeling, 3) agrophysical and physic-tech...
Solid State Division progress report for period ending September 30, 1993
DOE Office of Scientific and Technical Information (OSTI.GOV)
Green, P.H.; Hinton, L.W.
1994-08-01
This report covers research progress in the Solid State Division from April 1, 1992, to September 30, 1993. During this period, the division conducted a broad, interdisciplinary materials research program with emphasis on theoretical solid state physics, neutron scattering, synthesis and characterization of materials, ion beam and laser processing, and the structure of solids and surfaces. This research effort was enhanced by new capabilities in atomic-scale materials characterization, new emphasis on the synthesis and processing of materials, and increased partnering with industry and universities. The theoretical effort included a broad range of analytical studies, as well as a new emphasismore » on numerical simulation stimulated by advances in high-performance computing and by strong interest in related division experimental programs. Superconductivity research continued to advance on a broad front from fundamental mechanisms of high-temperature superconductivity to the development of new materials and processing techniques. The Neutron Scattering Program was characterized by a strong scientific user program and growing diversity represented by new initiatives in complex fluids and residual stress. The national emphasis on materials synthesis and processing was mirrored in division research programs in thin-film processing, surface modification, and crystal growth. Research on advanced processing techniques such as laser ablation, ion implantation, and plasma processing was complemented by strong programs in the characterization of materials and surfaces including ultrahigh resolution scanning transmission electron microscopy, atomic-resolution chemical analysis, synchrotron x-ray research, and scanning tunneling microscopy.« less
ERIC Educational Resources Information Center
Ventura, Karen; Smith, Mark B.; Prat, Jacob R.; Echegoyen, Lourdes E.; Villagran´, Dino
2017-01-01
We have designed a 4 h physical chemistry laboratory to introduce upper division students to electrochemistry concepts, including mixed valency and electron transfer (ET), using cyclic and differential pulse voltammetries. In this laboratory practice, students use a ferrocene dimer consisting of two ferrocene centers covalently bonded through a…
Physics division annual report 2005.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Glover, J.; Physics
2007-03-12
This report highlights the research performed in 2005 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development. The mission of Nuclear Physics is to understand the origin, evolution and structure of baryonic matter in the universe--the matter that makes up stars, planets and human life itself. The Division's research focuses on innovative new ways to address this mission and 2005 was a year of great progress. One of the most exciting developments ismore » the initiation of the Californium Rare Ion Breeder Upgrade, CARIBU. By combining a Cf-252 fission source, the gas catcher technology developed for rare isotope beams, a high-resolution isobar separator, and charge breeding ECR technology, CARIBU will make hundreds of new neutron-rich isotope beams available for research. The cover illustration shows the anticipated intensities of low-energy beams that become available for low-energy experiments and for injection into ATLAS for reacceleration. CARIBU will be completed in early 2009 and provide us with considerable experience in many of the technologies developed for a future high intensity exotic beam facility. Notable results in research at ATLAS include a measurement of the isomeric states in {sup 252}No that helps pin down the single particle structure expected for superheavy elements, and a new low-background measurement of {sup 16}N beta-decay to determine the {sup 12}C({alpha},{gamma}){sup 16}O reaction rate that is so important in astrophysical environments. Precise mass measurements shed new light on the unitarity of the quark weak-mixing matrix in the search for physics beyond the standard model. ATLAS operated for 4686 hours of research in FY2005 while achieving 95% efficiency of beam delivery for experiments. In Medium-Energy Physics, radium isotopes were trapped in an atom trap for the first time, a major milestone in an innovative search for the violation of time-reversal symmetry. New results from HERMES establish that strange quarks carry little of the spin of the proton and precise results have been obtained at JLAB on the changes in quark distributions in light nuclei. New theoretical results reveal that the nature of the surfaces of strange quark stars. Green's function Monte Carlo techniques have been extended to scattering problems and show great promise for the accurate calculation, from first principles, of important astrophysical reactions. Flame propagation in type 1A supernova has been simulated, a numerical process that requires considering length scales that vary by factors of eight to twelve orders of magnitude. Argonne continues to lead in the development and exploitation of the new technical concepts that will truly make an advanced exotic beam facility, in the words of NSAC, 'the world-leading facility for research in nuclear structure and nuclear astrophysics'. Our science and our technology continue to point the way to this major advance. It is a tremendously exciting time in science for these new capabilities hold the keys to unlocking important secrets of nature. The great progress that has been made in meeting the exciting intellectual challenges of modern nuclear physics reflects the talents and dedication of the Physics Division staff and the visitors, guests and students who bring so much to the research.« less
Federal Register 2010, 2011, 2012, 2013, 2014
2010-04-02
... Manufacturing, Multi-Plastics, Inc., Division, Sipco, Inc., Division, Including Leased Workers of M-Ploy... Manufacturing, Multi-Plastics, Inc., Division and Sipco, Inc., Division, including leased workers of M-Ploy... applicable to TA-W-70,457 is hereby issued as follows: ``All workers of Core Manufacturing, Multi-Plastics...
SAMS-II Requirements and Operations
NASA Technical Reports Server (NTRS)
Wald, Lawrence W.
1998-01-01
The Space Acceleration Measurements System (SAMS) II is the primary instrument for the measurement, storage, and communication of the microgravity environment aboard the International Space Station (ISS). SAMS-II is being developed by the NASA Lewis Research Center Microgravity Science Division to primarily support the Office of Life and Microgravity Science and Applications (OLMSA) Microgravity Science and Applications Division (MSAD) payloads aboard the ISS. The SAMS-II is currently in the test and verification phase at NASA LeRC, prior to its first hardware delivery scheduled for July 1998. This paper will provide an overview of the SAMS-II instrument, including the system requirements and topology, physical and electrical characteristics, and the Concept of Operations for SAMS-II aboard the ISS.
A Conversation with Lee Alvin DuBridge - Part I
NASA Astrophysics Data System (ADS)
Goodstein, Judith R.
Physicist Lee A. DuBridge became president of the California Institute of Technology in 1946. In this interview he recalls the immediate problems he faced, including his dealings with Robert A. Millikan, whom he replaced as chief administrator of the institute; institute financing and inadequate salaries. DuBridge also talks about the advent of federal support for peacetime science and Millikan's distaste for it; his close working relationship with Robert F. Bacher, who came to the institute in 1949 as chairman of the Division of Physics, Mathematics, and Astronomy; his recollections of the meteorologist Irving P. Krick, the physicist Alexander Goetz, and the chemist Linus Pauling; and his attempts to build up the Humanities Division.
Is direct measurement of time possible?
NASA Astrophysics Data System (ADS)
Reynolds, Thomas
2017-08-01
Is direct measurement of time possible? The answer to this question may depend upon how one understands time. Is time an essential constituent of physical reality? Or is what scientists are talking about when they use the symbol ‘t’ or the word ‘time’ an human cultural construct, as the Chief of the USA NIST Divisions of Time and Frequency and of Quantum Physics has suggested. Few aspects of physics do not reference activity to time, but many discussions within either view of time seem to use one same, largely traditional, language of time. Briefly considering the question of measurement, including from a formal measure-theoretic point of view, clarifies the situation.
Living matter—nexus of physics and biology in the 21st century
Gardel, Margaret L.
2012-01-01
Cells are made up of complex assemblies of cytoskeletal proteins that facilitate force transmission from the molecular to cellular scale to regulate cell shape and force generation. The “living matter” formed by the cytoskeleton facilitates versatile and robust behaviors of cells, including their migration, adhesion, division, and morphology, that ultimately determine tissue architecture and mechanics. Elucidating the underlying physical principles of such living matter provides great opportunities in both biology and physics. For physicists, the cytoskeleton provides an exceptional toolbox to study materials far from equilibrium. For biologists, these studies will provide new understanding of how molecular-scale processes determine cell morphological changes. PMID:23112229
ERIC Educational Resources Information Center
Systems Architects, Inc., Randolph, MA.
A practical system for producing a union catalog of titles in the collections of the Library of Congress Division for the Blind and Physically Handicapped (DBPH), its regional network, and related agencies from a machine-readable data base is presented. The DBPH organization and operations and the associated regional library network are analyzed.…
Supportive and Palliative Care Research | Division of Cancer Prevention
Supportive and palliative care research includes studies to prevent or treat the acute and chronic symptoms and morbidities related to cancer and its treatment, and to examine the effects of cancer and its treatment on quality of life and psychosocial issues and treatment strategies at the end of life. Active Projects can range from caregiver issues to geriatrics, physical
ERIC Educational Resources Information Center
Louisiana State Dept. of Education, Baton Rouge.
Prepared by the vocational education division of a state department of education and compiled by industrial arts educators, this resource guide provides a conceptual basis for the elementary teacher using industrial arts as a means of introducing children to industrial processes and orienting them to the physical and material world. Included in…
Physics Division annual report 2004.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Glover, J.
2006-04-06
This report highlights the research performed in 2004 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development. The intellectual challenges of this research represent some of the most fundamental challenges in modern science, shaping our understanding of both tiny objects at the center of the atom and some of the largest structures in the universe. A great strength of these efforts is the critical interplay of theory and experiment. Notable results in researchmore » at ATLAS include a measurement of the charge radius of He-6 in an atom trap and its explanation in ab-initio calculations of nuclear structure. Precise mass measurements on critical waiting point nuclei in the rapid-proton-capture process set the time scale for this important path in nucleosynthesis. An abrupt fall-off was identified in the subbarrier fusion of several heavy-ion systems. ATLAS operated for 5559 hours of research in FY2004 while achieving 96% efficiency of beam delivery for experiments. In Medium Energy Physics, substantial progress was made on a long-term experiment to search for the violation of time-reversal invariance using trapped Ra atoms. New results from HERMES reveal the influence of quark angular momentum. Experiments at JLAB search for evidence of color transparency in rho-meson production and study the EMC effect in helium isotopes. New theoretical results include a Poincare covariant description of baryons as composites of confined quarks and non-point-like diquarks. Green's function Monte Carlo techniques give accurate descriptions of the excited states of light nuclei and these techniques been extended to scattering states for astrophysics studies. A theoretical description of the phenomena of proton radioactivity has been extended to triaxial nuclei. Argonne continues to lead in the development and exploitation of the new technical concepts that will truly make RIA, in the words of NSAC, ''the world-leading facility for research in nuclear structure and nuclear astrophysics''. The performance standards for new classes of superconducting cavities continue to increase. Driver linac transients and faults have been analyzed to understand reliability issues and failure modes. Liquid-lithium targets were shown to successfully survive the full-power deposition of a RIA beam. Our science and our technology continue to point the way to this major advance. It is a tremendously exciting time in science for RIA holds the keys to unlocking important secrets of nature. The work described here shows how far we have come and makes it clear we know the path to meet these intellectual challenges. The great progress that has been made in meeting the exciting intellectual challenges of modern nuclear physics reflects the talents and dedication of the Physics Division staff and the visitors, guests and students who bring so much to the research.« less
NASA Astrophysics Data System (ADS)
Thompson, John
2015-04-01
As the Physical Review Focused Collection demonstrates, recent frontiers in physics education research include systematic investigations at the upper division. As part of a collaborative project, we have examined student understanding of several topics in upper-division thermal and statistical physics. A fruitful context for research is the Boltzmann factor in statistical mechanics: the standard derivation involves several physically justified mathematical steps as well as the invocation of a Taylor series expansion. We have investigated student understanding of the physical significance of the Boltzmann factor as well as its utility in various circumstances, and identified various lines of student reasoning related to the use of the Boltzmann factor. Results from written data as well as teaching interviews suggest that many students do not use the Boltzmann factor when answering questions related to probability in applicable physical situations, even after lecture instruction. We designed an inquiry-based tutorial activity to guide students through a derivation of the Boltzmann factor and to encourage deep connections between the physical quantities involved and the mathematics. Observations of students working through the tutorial suggest that many students at this level can recognize and interpret Taylor series expansions, but they often lack fluency in creating and using Taylor series appropriately, despite previous exposure in both calculus and physics courses. Our findings also suggest that tutorial participation not only increases the prevalence of relevant invocation of the Boltzmann factor, but also helps students gain an appreciation of the physical implications and meaning of the mathematical formalism behind the formula. Supported in part by NSF Grants DUE-0817282, DUE-0837214, and DUE-1323426.
Wellman, Aaron D; Coad, Sam C; Goulet, Grant C; McLellan, Christopher P
2016-01-01
The aim of the present study was to examine the competitive physiological movement demands of National Collegiate Athletic Association (NCAA) Division I college football players using portable global positioning system (GPS) technology during games and to examine positional groups within offensive and defensive teams, to determine if a player's physiological requirements during games are influenced by playing position. Thirty-three NCAA Division I Football Bowl Subdivision football players were monitored using GPS receivers with integrated accelerometers (GPSports) during 12 regular season games throughout the 2014 season. Individual data sets (n = 295) from players were divided into offensive and defensive teams and subsequent position groups. Movement profile characteristics, including total, low-intensity, moderate-intensity, high-intensity, and sprint running distances (m), sprint counts, and acceleration and deceleration efforts, were assessed during games. A one-way ANOVA and post-hoc Bonferroni statistical analysis were used to determine differences in movement profiles between each position group within offensive and defensive teams. For both offensive and defensive teams, significant (p ≤ 0.05) differences exist between positional groups for game physical performance requirements. The results of the present study identified that wide receivers and defensive backs completed significantly (p ≤ 0.05) greater total distance, high-intensity running, sprint distance, and high-intensity acceleration and deceleration efforts than their respective offensive and defensive positional groups. Data from the present study provide novel quantification of position-specific physical demands of college football games and support the use of position-specific training in the preparation of NCAA Division I college football players for competition.
Mean sea-level rise impacts on Santos Bay, Southeastern Brazil--physical modelling study.
Alfredini, Paolo; Arasaki, Emilia; do Amaral, Rogério Fernando
2008-09-01
The greenhouse effect and resulting increase in the Earth's temperature may accelerate the mean sea-level rise. The natural response of bays and estuaries to this rise, such as this case study of Santos Bay (Brazil), will include change in shoreline position, land flooding and wetlands impacts. The main impacts of this scenario were studied in a physical model built in the Coastal and Harbour Division of Hydraulic Laboratory, University of São Paulo, and the main conclusions are presented in this paper. The model reproduces near 1,000 km(2) of the study area, including Santos, São Vicente, Praia Grande, Cubatão, Guarujá and Bertioga cities.
Computing Across the Physics and Astrophysics Curriculum
NASA Astrophysics Data System (ADS)
DeGioia Eastwood, Kathy; James, M.; Dolle, E.
2012-01-01
Computational skills are essential in today's marketplace. Bachelors entering the STEM workforce report that their undergraduate education does not adequately prepare them to use scientific software and to write programs. Computation can also increase student learning; not only are the students actively engaged, but computational problems allow them to explore physical problems that are more realistic than the few that can be solved analytically. We have received a grant from the NSF CCLI Phase I program to integrate computing into our upper division curriculum. Our language of choice is Matlab; this language had already been chosen for our required sophomore course in Computational Physics because of its prevalence in industry. For two summers we have held faculty workshops to help our professors develop the needed expertise, and we are now in the implementation and evaluation stage. The end product will be a set of learning materials in the form of computational modules that we will make freely available. These modules will include the assignment, pedagogical goals, Matlab code, samples of student work, and instructor comments. At this meeting we present an overview of the project as well as modules written for a course in upper division stellar astrophysics. We acknowledge the support of the NSF through DUE-0837368.
NASA Astrophysics Data System (ADS)
Sutter, Leo; Kolbman, Dan; Wu, Mingming; Ma, Minglin; Das, Moumita
The biophysics of cell co-cultures, i.e. binary systems of cell populations, is of great interest in many biological processes including formation of embryos, and tumor progression. During these processes, different types of cells with different physical properties are mixed with each other, with important consequences for cell-cell interaction, aggregation, and migration. The role of the differences in their physical properties in their collective behavior remains poorly understood. Furthermore, until recently most theoretical studies of collective cell migration have focused on two dimensional systems. Under physiological conditions, however, cells often have to navigate three dimensional and confined micro-environments. We study a confined, three-dimensional binary system of interacting, active, and deformable particles with different physical properties such as deformability, motility, adhesion, and division rates using Langevin Dynamics simulations. Our findings may provide insights into how the differences in and interplay between cell mechanical properties, division, and motility influence emergent collective behavior such as cell aggregation and segregation experimentally observed in co-cultures of breast cancer cells and healthy breast epithelial cells. This work was partially supported by a Cottrell College Science Award.
NASA Astrophysics Data System (ADS)
Emigh, Paul Jeffrey
This dissertation describes research on student understanding of quantum mechanics across multiple levels of instruction. The primary focus has been to identify patterns in student reasoning related to key concepts in quantum mechanics. The specific topics include quantum measurements, time dependence, vector spaces, and angular momentum. The research has spanned a variety of different quantum courses intended for introductory physics students, upper-division physics majors, and graduate students in physics. The results of this research have been used to develop a set of curriculum, Tutorials in Physics: Quantum Mechanics, for addressing the most persistent student difficulties. We document both the development of this curriculum and how it has impacted and improved student understanding of quantum mechanics.
New Directions in NASA's Materials Science Program
NASA Technical Reports Server (NTRS)
Gillies, Donald C.; Whitaker, Ann F. (Technical Monitor)
2001-01-01
Recently, NASA's Microgravity Research Division was re-aligned to match the Agency's increasing awareness of the importance of biological and nano-structural sciences. The Division has become the Physical Sciences Research section within the newly created Office of Biological and Physical Research. Within materials science and in the last few years, new programs aimed at biomaterials have been initiated. Results from these programs and also new research pertaining to materials for radiation protection will be discussed.
Argonne Physics Division Colloquium
and the birth of gravitational wave astronomy Host: Seamus Riordan 11 May 2018 18 May 2018 Laura University of Illinois at Chicago Physics Department Colloquia Northwestern University Physics and Astronomy
Statistical physics inspired energy-efficient coded-modulation for optical communications.
Djordjevic, Ivan B; Xu, Lei; Wang, Ting
2012-04-15
Because Shannon's entropy can be obtained by Stirling's approximation of thermodynamics entropy, the statistical physics energy minimization methods are directly applicable to the signal constellation design. We demonstrate that statistical physics inspired energy-efficient (EE) signal constellation designs, in combination with large-girth low-density parity-check (LDPC) codes, significantly outperform conventional LDPC-coded polarization-division multiplexed quadrature amplitude modulation schemes. We also describe an EE signal constellation design algorithm. Finally, we propose the discrete-time implementation of D-dimensional transceiver and corresponding EE polarization-division multiplexed system. © 2012 Optical Society of America
HEP Division Argonne National Laboratory
Argonne National Laboratory Environmental Safety & Health DOE Logo Home Division ES&H ... Search Argonne Home >High Energy Physics> Environmental Safety & Health Environmental Safety & Health New Employee Training */ ?> Office Safety: Checklist (Submitted Checklists) Submitted
Space Science at Los Alamos National Laboratory
NASA Astrophysics Data System (ADS)
Smith, Karl
2017-09-01
The Space Science and Applications group (ISR-1) in the Intelligence and Space Research (ISR) division at the Los Alamos National Laboratory lead a number of space science missions for civilian and defense-related programs. In support of these missions the group develops sensors capable of detecting nuclear emissions and measuring radiations in space including γ-ray, X-ray, charged-particle, and neutron detection. The group is involved in a number of stages of the lifetime of these sensors including mission concept and design, simulation and modeling, calibration, and data analysis. These missions support monitoring of the atmosphere and near-Earth space environment for nuclear detonations as well as monitoring of the local space environment including space-weather type events. Expertise in this area has been established over a long history of involvement with cutting-edge projects continuing back to the first space based monitoring mission Project Vela. The group's interests cut across a large range of topics including non-proliferation, space situational awareness, nuclear physics, material science, space physics, astrophysics, and planetary physics.
Characterization of contaminant removal by an optical strip material
NASA Astrophysics Data System (ADS)
Hamilton, James P.; Frigo, S. P.; Caroll, Brenden J.; Assoufidyen, L.; Lewis, Matthew S.; Cook, Russell E.; de Carlo, F.
2001-03-01
Department of Chemistry and Engineering Physics, University of Wisconsin-Platteville, Platteville, WI 53818 Advanced Photon Source, X-Ray Facilities Division, Argonne National Laboratory, Advanced Photon Source, User Program Division, Argonne National Laboratory, *Electron Microscopy Center, Materials Science Division, Argonne National Laboratory, Argonne National Laboratory, 9700 S. Cass Ave., Argonne IL 60439-4856 USA A novel optical strip coating material, Opticlean, has been shown to safely remove fingerprints, particles and contamination from a variety of optical surfaces including coated glass, Si and first surface mirrors. Contaminant removal was monitored by Nomarski, Atomic Force and Scanning Electron Microscopy. Sub-micron features on diffraction gratings and silicon wafers were also cleaned without leaving light scattering particles on the surface. **This work was supported in part by the U.S. Department of Energy, Basic Energy Sciences-Materials Sciences, under contract no. W-31-109-ENG-38. The authors acknowledge the support and facilities provided by the Advanced Photon Source and the Electron Microscopy Center at Argonne National Laboratory.
A macrochip interconnection network enabled by silicon nanophotonic devices.
Zheng, Xuezhe; Cunningham, John E; Koka, Pranay; Schwetman, Herb; Lexau, Jon; Ho, Ron; Shubin, Ivan; Krishnamoorthy, Ashok V; Yao, Jin; Mekis, Attila; Pinguet, Thierry
2010-03-01
We present an advanced wavelength-division multiplexing point-to-point network enabled by silicon nanophotonic devices. This network offers strictly non-blocking all-to-all connectivity while maximizing bisection bandwidth, making it ideal for multi-core and multi-processor interconnections. We introduce one of the key components, the nanophotonic grating coupler, and discuss, for the first time, how this device can be useful for practical implementations of the wavelength-division multiplexing network using optical proximity communications. Finite difference time-domain simulation of the nanophotonic grating coupler device indicates that it can be made compact (20 microm x 50 microm), low loss (3.8 dB), and broadband (100 nm). These couplers require subwavelength material modulation at the nanoscale to achieve the desired functionality. We show that optical proximity communication provides unmatched optical I/O bandwidth density to electrical chips, which enables the application of wavelength-division multiplexing point-to-point network in macrochip with unprecedented bandwidth-density. The envisioned physical implementation is discussed. The benefits of such an interconnect network include a 5-6x improvement in latency when compared to a purely electronic implementation. Performance analysis shows that the wavelength-division multiplexing point-to-point network offers better overall performance over other optical network architectures.
NASA Technical Reports Server (NTRS)
Williams, Louis J.; Hessenius, Kristin A.; Corsiglia, Victor R.; Hicks, Gary; Richardson, Pamela F.; Unger, George; Neumann, Benjamin; Moss, Jim
1992-01-01
The annual accomplishments is reviewed for the Aerodynamics Division during FY 1991. The program includes both fundamental and applied research directed at the full spectrum of aerospace vehicles, from rotorcraft to planetary entry probes. A comprehensive review is presented of the following aerodynamics elements: computational methods and applications; CFD validation; transition and turbulence physics; numerical aerodynamic simulation; test techniques and instrumentation; configuration aerodynamics; aeroacoustics; aerothermodynamics; hypersonics; subsonics; fighter/attack aircraft and rotorcraft.
Accelerator and Fusion Research Division. Annual report, October 1978-September 1979
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1980-03-01
Topics covered include: Super HILAC and Bevalac operations; high intensity uranium beams line item; advanced high charge state ion source; 184-inch synchrocyclotron; VENUS project; positron-electron project; high field superconducting accelerator magnets; beam cooling; accelerator theory; induction linac drivers; RF linacs and storage rings; theory; neutral beam systems development; experimental atomic physics; neutral beam plasma research; plasma theory; and the Tormac project. (GHT)
ERIC Educational Resources Information Center
National Academy of Sciences - National Research Council, Washington, DC.
Several aspects of plastics used in the building industry are discussed, and a general information format for specifying plastics in building construction is given. This format includes--(1) description of product, (2) physical properties, (3) design criteria, (4) installation, (5) maintenance, (6) economics, and (7) case histories. Several uses…
ERIC Educational Resources Information Center
National Academy of Sciences - National Research Council, Washington, DC.
Topics discussed include--(1) requirements for weatherproofing and sealant materials for thin shell concrete roof, (2) effect of physical factors on weatherproofing of thin shell concrete roofs, (3) problems and limitations imposed by thin shell concrete roofs and their effect on weatherproofing and sealant materials, and (4) properties and uses…
10 CFR Appendix A to Part 605 - The Energy Research Program Office Descriptions
Code of Federal Regulations, 2010 CFR
2010-01-01
... inorganic chemistry; chemical physics; atomic physics; photochemistry; radiation chemistry; thermodynamics... is comprised of the subfields metallurgy, ceramics, solid state physics, materials chemistry, and... listed below. (a) Applied Plasma Physics (APP) This Division seeks to develop that body of physics...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Knox, J.B.; MacCracken, M.C.; Dickerson, M.H.
1986-08-01
This annual report for the Atmospheric and Geophysical Sciences Division (G-Division) summarizes the activities and highlights of the past three years, with emphasis on significant research findings in two major program areas: the Atmospheric Release Advisory Capability (ARAC), with its recent involvement in assessing the effects of the Chernobyl reactor accident, and new findings on the environmental consequences of nuclear war. The technical highlights of the many other research projects are also briefly reported, along with the Division's organization, budget, and publications.
Physics Division progress report for period ending June 30, 1981
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1981-11-01
Progress is reported in detail in the following areas: Holifield Heavy-Ion Research Facility, nuclear physics, the UNISOR program, neutron physics, theoretical physics, the Nuclear Data Project, atomic and plasma physics, and high energy physics. Publications are listed. Separate abstracts were prepared for 34 papers. (WHK)
NASA Astrophysics Data System (ADS)
2011-10-01
An Astrophysics and Astronomy scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS) was held in the Conference Hall of the P N Lebedev Physical Institute, RAS, on 26 January 2011. The following reports were put on the session's agenda posted on the web site www.gpad.ac.ru of the Physical Sciences Division, RAS: (1) Cherepashchuk A M (Sternberg Astronomical Institute, Moscow State University, Moscow) "Investigation of X-ray sources"; (2) Shustov B M (Institute of Astronomy, Russian Academy of Sciences, Moscow) "Asteroid and comet hazards: physical and other aspects"; (3) Sazhin M V (Sternberg Astronomical Institute, Moscow State University, Moscow) "Search for cosmic strings"; (4) Zakharov A F (Russian Federation State Scientific Center 'A I Alikhanov Institute for Theoretical and Experimental Physics', Moscow) "Exoplanet search using gravitational microlensing". Papers written on the basis of the reports are published below. • Optical investigations of X-ray binary systems, A M Cherepashchuk Physics-Uspekhi, 2011, Volume 54, Number 10, Pages 1061-1067 • Asteroid and comet hazards: the role of physical sciences in solving the problem, B M Shustov Physics-Uspekhi, 2011, Volume 54, Number 10, Pages 1068-1071 • Search for cosmic strings using optical and radio astronomy methods, O S Sazhina, M V Sazhin, M Capaccioli, G Longo Physics-Uspekhi, 2011, Volume 54, Number 10, Pages 1072-1077 • Search for exoplanets using gravitational microlensing, A F Zakharov Physics-Uspekhi, 2011, Volume 54, Number 10, Pages 1077-1084
Federal Register 2010, 2011, 2012, 2013, 2014
2011-05-11
... Logistics Division, Including On-Site Leased Workers From Prologistix, Including Workers Whose Unemployment..., applicable to workers of CEVA Freight, LLC, Dell Logistics Division, including on-site leased workers from... workers employed at CEVA Freight, LLC, Dell Logistics Division, Winston-Salem, North Carolina who were...
NASA Astrophysics Data System (ADS)
2013-05-01
A scientific session of the General Meeting of the Physical Sciences Division of the Russian Academy of Sciences (RAS) was held in the conference hall of the Lebedev Physical Institute, RAS on 17 December 2012.The following reports were put on the session's agenda posted on the website http://www.gpad.ac.ru of the RAS Physical Sciences Division: (1) Dianov E M (Fiber Optics Research Center, RAS, Moscow) "On the threshold of a peta era"; (2) Zabrodskii A G (Ioffe Physical Technical Institute, RAS, St. Petersburg) "Scientists' contribution to the great victory in WWII using the example of the Leningrad (now A F Ioffe) Physical Technical Institute"; (3) Ilkaev R I (Russian Federal Nuclear Center --- All-Russian Research Institute of Experimental Physics, Sarov) "Major stages of the Soviet Atomic Project"; (4) Cherepashchuk A M (Sternberg State Astronomical Institute of Lomonosov Moscow State University, Moscow) "History of the Astronomy history ". Papers written on the basis of the reports are published below. • On the Threshold of Peta-era, E M Dianov Physics-Uspekhi, 2013, Volume 56, Number 5, Pages 486-492 • Scientists' contribution to the Great Victory in WWII on the example of the Leningrad (now A F Ioffe) Physical Technical Institute, A G Zabrodskii Physics-Uspekhi, 2013, Volume 56, Number 5, Pages 493-502 • Major stages of the Atomic Project, R I Ilkaev Physics-Uspekhi, 2013, Volume 56, Number 5, Pages 502-509 • History of the Universe History, A M Cherepashchuk Physics-Uspekhi, 2013, Volume 56, Number 5, Pages 509-530
Earth Sciences Division annual report 1990
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
1991-06-01
This Annual Report presents summaries of selected representative research activities grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrogeology, Geology and Geochemistry, and Geophysics and Geomechanics. Much of the Division`s research deals with the physical and chemical properties and processes in the earth`s crust, from the partially saturated, low-temperature near-surface environment to the high-temperature environments characteristic of regions where magmatic-hydrothermal processes are active. Strengths in laboratory and field instrumentation, numerical modeling, and in situ measurement allow study of the transport of mass and heat through geologic media -- studies that now include the appropriatemore » chemical reactions and the hydraulic-mechanical complexities of fractured rock systems. Of particular note are three major Division efforts addressing problems in the discovery and recovery of petroleum, the application of isotope geochemistry to the study of geodynamic processes and earth history, and the development of borehole methods for high-resolution imaging of the subsurface using seismic and electromagnetic waves. In 1989 a major DOE-wide effort was launched in the areas of Environmental Restoration and Waste Management. Many of the methods previously developed for and applied to deeper regions of the earth will in the coming years be turned toward process definition and characterization of the very shallow subsurface, where man-induced contaminants now intrude and where remedial action is required.« less
Exploring Physics with Computer Animation and PhysGL
NASA Astrophysics Data System (ADS)
Bensky, T. J.
2016-10-01
This book shows how the web-based PhysGL programming environment (http://physgl.org) can be used to teach and learn elementary mechanics (physics) using simple coding exercises. The book's theme is that the lessons encountered in such a course can be used to generate physics-based animations, providing students with compelling and self-made visuals to aid their learning. Topics presented are parallel to those found in a traditional physics text, making for straightforward integration into a typical lecture-based physics course. Users will appreciate the ease at which compelling OpenGL-based graphics and animations can be produced using PhysGL, as well as its clean, simple language constructs. The author argues that coding should be a standard part of lower-division STEM courses, and provides many anecdotal experiences and observations, that include observed benefits of the coding work.
76 FR 19147 - Proposal Review Panel for Physics; Notice of Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-06
... NATIONAL SCIENCE FOUNDATION Proposal Review Panel for Physics; Notice of Meeting In accordance... announces the following meeting. Name: LIGO Laboratory Annual Review at Livingston Observatory for Physics...: Partially Closed. Contact Person: Thomas Carruthers, Program Director, Division of Physics, National Science...
Physics division progress report for period ending September 30 1991
DOE Office of Scientific and Technical Information (OSTI.GOV)
Livingston, A.B.
1992-03-01
This report discusses research being conducted at Oak Ridge National Laboratory in physics. The areas covered are: Holifield Heavy Ion Research Facility; low/medium energy nuclear physics; high energy experimental physics; the Unisor program; experimental atomic physics; laser and electro-optics lab; theoretical physics; compilations and evaluations; and radioactive ion beam development. (LSP)
Federal Register 2010, 2011, 2012, 2013, 2014
2010-03-02
... Chemical Corporation Wacker Polymers Division a Subsidiary of Wacker Chemie AG Including On-Site Leased.... and Yoh Managed Staffing South Brunswick, NJ; Wacker Chemical Corporation Wacker Polymers Division a... of Wacker Chemical Corporation, Wacker Polymers Division, a subsidiary of Wacker Chemie AG, including...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-07-01
... Logistics Division, Including On-Site Leased Workers From Prologistix and Employment Staffing Solutions... 19, 2010, applicable to workers of CEVA Freight, LLC, Dell Logistics Division, including on-site..., North Carolina location of CEVA Freight, LLC, Dell Logistics Division. The Department has determined...
The Treatment and Destruction Branch (TDB) of NRMRL's Land Remediation and Pollution Control Division (LRPCD) produces and publishes highly technical and scientific documents relating to TDB's research. TDB conducts bioremediation and physical/chemical treatment research. The res...
The Treatment and Destruction Branch (TDB) of NRMRL's Land Remediation and Pollution Control Division (LRPCD) produces and publishes highly technical and scientific articles relating to TDB's research. TDB conducts bioremediation and physical/chemical treatment research. The rese...
The Treatment and Destruction Branch (TDB) of NRMRL's Land Remediation and Pollution Control Division (LRPCD)produces and publishes highly specialized technical and scientific documents relating to TDB's research. TDB conducts bioremediation and physical/chemical treatment resear...
The Treatment and Destruction Branch (TDB) of NRMRL's Land Remediation and Pollution Control Division (LRPCD) produces and publishes highly technical and scientific documents relating to TDB's research. TDB conducts bioremediation and physical/chemical treatment research. The res...
The Treatment and Destruction Branch (TDB) of NRMRL's Land Remediation and Pollution Control Division (LRPCD) produces and publishes highly technical and scientific documents relating to TDB's research. TDB conducts bioremediation and physical/chemical treatment research. The res...
Lagrangian Turbulence and Transport in Semi-enclosed Basins and Coastal Regions
2009-01-01
enclosed Basins and Coastal Regions Annalisa Griffa Division of Meteorology and Physical Oceanography Rosenstiel School of Marine and Atmospheric...enclosed Basins and Coastal Regions 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER...variables. A set of diagnostics is then performed, including hydrological sections, transport, mean circulation and variability, aimed at quantifying
2017-03-01
discrete set of specimen and instrumentation locations available to be studied in a high -speed tunnel, such as the 8-foot HTT, under the desired...Benjamin P. Smarslok Hypersonic Sciences Branch High Speed Systems Division Diane Villanueva Universal Technology Corporation MARCH 2017...and is available to the general public, including foreign nationals. Copies may be obtained from the Defense Technical Information Center (DTIC
Long-range ordered vorticity patterns in living tissue induced by cell division
NASA Astrophysics Data System (ADS)
Rossen, Ninna S.; Tarp, Jens M.; Mathiesen, Joachim; Jensen, Mogens H.; Oddershede, Lene B.
2014-12-01
In healthy blood vessels with a laminar blood flow, the endothelial cell division rate is low, only sufficient to replace apoptotic cells. The division rate significantly increases during embryonic development and under halted or turbulent flow. Cells in barrier tissue are connected and their motility is highly correlated. Here we investigate the long-range dynamics induced by cell division in an endothelial monolayer under non-flow conditions, mimicking the conditions during vessel formation or around blood clots. Cell divisions induce long-range, well-ordered vortex patterns extending several cell diameters away from the division site, in spite of the system’s low Reynolds number. Our experimental results are reproduced by a hydrodynamic continuum model simulating division as a local pressure increase corresponding to a local tension decrease. Such long-range physical communication may be crucial for embryonic development and for healing tissue, for instance around blood clots.
77 FR 14441 - Proposal Review Panel for Physics; Notice of Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-03-09
... NATIONAL SCIENCE FOUNDATION Proposal Review Panel for Physics; Notice of Meeting In accordance... announces the following meeting. Name: LIGO Annual Review Site Visit at Hanford Observatory for Physics...: Partially Closed. Contact Person: Thomas Carruthers, Program Director, Division of Physics, National Science...
76 FR 66998 - Proposal Review Panel for Physics; Notice of Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-10-28
... NATIONAL SCIENCE FOUNDATION Proposal Review Panel for Physics; Notice of Meeting In accordance... announces the following meeting. Name: LIGO Annual Review Site Visit at Hanford Observatory for Physics...: Partially Closed. Contact Person: Thomas Carruthers, Program Director, Division of Physics, National Science...
Accurate Cell Division in Bacteria: How Does a Bacterium Know Where its Middle Is?
NASA Astrophysics Data System (ADS)
Howard, Martin; Rutenberg, Andrew
2004-03-01
I will discuss the physical principles lying behind the acquisition of accurate positional information in bacteria. A good application of these ideas is to the rod-shaped bacterium E. coli which divides precisely at its cellular midplane. This positioning is controlled by the Min system of proteins. These proteins coherently oscillate from end to end of the bacterium. I will present a reaction-diffusion model that describes the diffusion of the Min proteins, and their binding/unbinding from the cell membrane. The system possesses an instability that spontaneously generates the Min oscillations, which control accurate placement of the midcell division site. I will then discuss the role of fluctuations in protein dynamics, and investigate whether fluctuations set optimal protein concentration levels. Finally I will examine cell division in a different bacteria, B. subtilis. where different physical principles are used to regulate accurate cell division. See: Howard, Rutenberg, de Vet: Dynamic compartmentalization of bacteria: accurate division in E. coli. Phys. Rev. Lett. 87 278102 (2001). Howard, Rutenberg: Pattern formation inside bacteria: fluctuations due to the low copy number of proteins. Phys. Rev. Lett. 90 128102 (2003). Howard: A mechanism for polar protein localization in bacteria. J. Mol. Biol. 335 655-663 (2004).
NASA Astrophysics Data System (ADS)
2012-10-01
A scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS), entitled 'Plasmonics', was held in the Conference Hall of the Lebedev Physical Institute, RAS on 21 February 2012. The following reports were put on the session agenda posted on the website www.gpad.ac.ru of the RAS Physical Sciences Division: (1) Kukushkin I V, Murav'ev V M (Institute of Solid State Physics, RAS, Chernogolovka, Moscow region) "Terahertz plasmonics"; (2) Lozovik Yu E (Institute of Spectroscopy, RAS, Troitsk, Moscow region) "Plasmonics and magnetoplasmonics based on graphene and a topological insulator"; (3) Protsenko I E (P N Lebedev Physical Institute, RAS, Moscow) "Dipole nanolaser"; (4) Vinogradov A P, Andrianov E S, Pukhov A A, Dorofeenko A V (Institute for Theoretical and Applied Electrodynamics, RAS, Moscow), Lisyansky A A (Queens College of the City University of New York, USA) "Quantum plasmonics of metamaterials: loss compensation using spasers"; (5) Klimov V V (Lebedev Physical Institute, RAS, Moscow) "Quantum theory of radiation of optically active molecules in the vicinity of chiral nano-meta-particles". The papers written on the basis of oral reports 2-5 are published below. • Plasmonics and magnetoplasmonics based on graphene and a topological insulator, Yu E Lozovik Physics-Uspekhi, 2012, Volume 55, Number 10, Pages 1035-1039 • Theory of the dipole nanolaser, I E Protsenko Physics-Uspekhi, 2012, Volume 55, Number 10, Pages 1040-1046 • Quantum plasmonics of metamaterials: loss compensation using spasers, A P Vinogradov, E S Andrianov, A A Pukhov, A V Dorofeenko, A A Lisyansky Physics-Uspekhi, 2012, Volume 55, Number 10, Pages 1046-1053 • Using chiral nano-meta-particles to control chiral molecule radiation, V V Klimov, D V Guzatov Physics-Uspekhi, 2012, Volume 55, Number 10, Pages 1054-1058
Annual Safety Education Review 1972.
ERIC Educational Resources Information Center
American Association for Health, Physical Education, and Recreation, Washington, DC.
This booklet presents articles completed in 1972 by the Division of Safety Education of the American Association for Health, Physical Education, and Recreation. The introductory article contains the accomplishments of the division in 1971-72. The major points covered are planning conferences, conventions and meetings; revising the operating code…
Berkeley Lab - Materials Sciences Division
Synthesis Condensed Matter and Materials Physics Scattering and Instrumentation Science Centers Center for Berkeley Lab Berkeley Lab A-Z Index Phone Book Jobs Search DOE Search MSD Go MSD - Materials Sciences Division About Organization Contact Research Core Programs Materials Discovery, Design and
32 CFR 644.140 - Physical protection.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 32 National Defense 4 2010-07-01 2010-07-01 true Physical protection. 644.140 Section 644.140... ESTATE HANDBOOK Acquisition Acquisition by Leasing § 644.140 Physical protection. It is essential that the Division or District Engineer make provision for the physical protection for all facilities under...
32 CFR 644.140 - Physical protection.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 32 National Defense 4 2013-07-01 2013-07-01 false Physical protection. 644.140 Section 644.140... ESTATE HANDBOOK Acquisition Acquisition by Leasing § 644.140 Physical protection. It is essential that the Division or District Engineer make provision for the physical protection for all facilities under...
32 CFR 644.140 - Physical protection.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 32 National Defense 4 2014-07-01 2013-07-01 true Physical protection. 644.140 Section 644.140... ESTATE HANDBOOK Acquisition Acquisition by Leasing § 644.140 Physical protection. It is essential that the Division or District Engineer make provision for the physical protection for all facilities under...
32 CFR 644.140 - Physical protection.
Code of Federal Regulations, 2011 CFR
2011-07-01
... 32 National Defense 4 2011-07-01 2011-07-01 false Physical protection. 644.140 Section 644.140... ESTATE HANDBOOK Acquisition Acquisition by Leasing § 644.140 Physical protection. It is essential that the Division or District Engineer make provision for the physical protection for all facilities under...
32 CFR 644.140 - Physical protection.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 32 National Defense 4 2012-07-01 2011-07-01 true Physical protection. 644.140 Section 644.140... ESTATE HANDBOOK Acquisition Acquisition by Leasing § 644.140 Physical protection. It is essential that the Division or District Engineer make provision for the physical protection for all facilities under...
1983-11-04
Division AREA & WORK UNIT NUMBERS . Department of Chemistry Howard University Washington, D. C. 20059 NR-051-733 1t. CONTROLLING OFFICE NAME AND...Journal of Physical Chemistry Laser Chemistry Division Department of Chemistry Howard University Washington, D. C. 20059 November 4, 1983 *Reproduction in...Victor McCrary, David Zakheim, and William M. Jackson Laser Chemistry Division Chemistry Departmient Howard University Washington, D.C.. 20059 ABSTRACT The
NASA Astrophysics Data System (ADS)
Lindgård, Per-Anker
2003-05-01
This special issue presents a series of papers on biological physics. It emphasizes the fact that Journal of Physics: Condensed Matter welcomes papers in this area and foresees a fruitful cross-fertilization between this and other more conventional condensed matter fields. The work was presented at the conference ÂNanophysics in Life SciencesÂ' held in Copenhagen on 21-22 June 2002. The meeting was arranged by, and marked the start of, the new Division of Physics in Life Sciences (DPL) within the European Physical Society (EPS). It also celebrated the opening of a new Danish research centre on quantum protein physics (QUP), which was co-organizer and co-sponsor. The meeting was organized at short notice and yet attracted some 80 participants from a number of countries (despite the fact that the chosen weekend included the `midsummer night', a feast nobody in the Northern Scandinavian countries would wish to miss - even when offered an event in the beautiful venue of the Carlsberg estate). The audience included many young people and students, demonstrating the great interest in the field of biological physics and in the topics chosen within that field. The selection represented, furthermore, the present scope of the new DPL division. All but one of the board members of DPL were able to attend and present their work, among others. They have subsequently delivered valuable contributions to this special issue. The subjects cover a large area (the full programme can be found on the division's web-page: DPL.risoe.dk). To mention a few: the dynamical and optical properties of biomolecules (proteins), experimental studies of single biomolecules, various theoretical approaches to the protein folding problem and DNA motion, biomolecular motor and transport functions, quantum chemical calculations. Many of these problems are closely related to those studied in conventional condensed matter. To emphasize one topic we have written the Viewpoint article (pages V5-V9) which ties together the concepts of solitons, self-trapping, polarons and pump-probe experiments used in both realms. The scope of biological physics is of course still wider. All biological processes occur in water, hence an important topic is how proteins and biomolecules behave and interact in liquids. There is in this case a strong overlap between subjects generally published in the Liquids, Soft Matter and Biophysics section of Journal of Physics: Condensed Matter, but not covered in this issue. Another branch not covered is the more mathematical, generally non-linear models of physiological processes. It is hoped that this issue will serve as a valuable current state-of-the-art overview of interesting and important problems in biological physics, which will stimulate the interest of the general readership of Journal of Physics: Condensed Matter and inspire the application of the knowledge and expertise accumulated in condensed matter physics. I wish to thank the participants for their contributions to the meeting and to this special issue, Institute of Physics Publishing editorial staff for the efficient and smooth handling of the refereeing of the articles, and finally the QUP Center, The Danish Graduate School of Biophysics, EPS and The Carlsberg Academy for financial and other support.
Water Resources Data for California, 1969; Part 2: Water Quality Records
1970-01-01
Water-resources investigations of the U.S. Geological Survey include the collection of water-quality data on the chemical and physical characteristics of surface and ground-water supplies of the Nation. Theses data for the 1969 water year for the quality of surface water in California are presented in this report. Data for a few water-quality stations in bordering States are also included. The data were collected by the Water Resources Division of the Geological Survey under the direction of R. Stanley Lord, district chief, Menlo Park, Calif.
Strategic Directions in Heliophysics Research Related to Weakly Ionized Plasmas
NASA Technical Reports Server (NTRS)
Spann, James F.
2010-01-01
In 2009, the Heliophysics Division of NASA published its triennial roadmap entitled "Heliophysics; the solar and space physics of a new era." In this document contains a science priority that is recommended that will serve as input into the recently initiated NRC Heliophysics Decadal Survey. The 2009 roadmap includes several science targets recommendations that are directly related to weakly ionized plasmas, including on entitled "Ion-Neutral Coupling in the Atmosphere." This talk will be a brief overview of the roadmap with particular focus on the science targets relevant to weakly ionized plasmas.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-22
..., Power Train Division, Mack Avenue Engine Plant 1, Including On-Site Leased Workers From Caravan Knight..., applicable to workers of Chrysler Group, LLC, Power Train Division, Mack Avenue Engine Plant 1, including on... all workers of Chrysler LLC, Mack Avenue Engine Plants 1 & 2, Power Train Division, Detroit, Michigan...
Origins of the Sexual Division of Labor.
ERIC Educational Resources Information Center
Leibowitz, Lila
An interactive, biosocial model of early hominids presents evidence that physical sex differences are not the basis for the sexual division of labor as is commonly believed. Production (the deliberate collection and distribution of food) developed among early hominids as a prerequisite for survival. Although the population appears to have had…
The North Carolina Division of Public Health's vision for healthy and sustainable communities.
Thomas, Cathy; Rhew, Lori K; Petersen, Ruth
2012-01-01
The North Carolina Division of Public Health is working to improve access to physical activity through changes in the built environment by participating in the Healthy Environments Collaborative and by leading the state's Communities Putting Prevention to Work project and the Shape Your World movement.
Using Physical Models to Explain a Division Algorithm.
ERIC Educational Resources Information Center
Vest, Floyd
1985-01-01
Develops a division algorithm in terms of familiar manipulations of concrete objects and presents it with a series of questions for diagnosis of students' understanding of the algorithm in terms of the concrete model utilized. Also offers general guidelines for using concrete illustrations to explain algorithms and other mathematical principles.…
NASA Astrophysics Data System (ADS)
1991-06-01
This Annual Report presents summaries of selected representative research activities grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrogeology, Geology and Geochemistry, and Geophysics and Geomechanics. Much of the Division's research deals with the physical and chemical properties and processes in the earth's crust, from the partially saturated, low-temperature near-surface environment to the high-temperature environments characteristic of regions where magmatic-hydrothermal processes are active. Strengths in laboratory and field instrumentation, numerical modeling, and in situ measurement allow study of the transport of mass and heat through geologic media -- studies that now include the appropriate chemical reactions and the hydraulic-mechanical complexities of fractured rock systems. Of particular note are three major Division efforts addressing problems in the discovery and recovery of petroleum, the application of isotope geochemistry to the study of geodynamic processes and earth history, and the development of borehole methods for high-resolution imaging of the subsurface using seismic and electromagnetic waves. In 1989, a major DOE-wide effort was launched in the areas of Environmental Restoration and Waste Management. Many of the methods previously developed for and applied to deeper regions of the earth will, in the coming years, be turned toward process definition and characterization of the very shallow subsurface, where man-induced contaminants now intrude and where remedial action is required.
Polarization division multiplexing for optical data communications
NASA Astrophysics Data System (ADS)
Ivanovich, Darko; Powell, Samuel B.; Gruev, Viktor; Chamberlain, Roger D.
2018-02-01
Multiple parallel channels are ubiquitous in optical communications, with spatial division multiplexing (separate physical paths) and wavelength division multiplexing (separate optical wavelengths) being the most common forms. Here, we investigate the viability of polarization division multiplexing, the separation of distinct parallel optical communication channels through the polarization properties of light. Two or more linearly polarized optical signals (at different polarization angles) are transmitted through a common medium, filtered using aluminum nanowire optical filters fabricated on-chip, and received using individual silicon photodetectors (one per channel). The entire receiver (including optics) is compatible with standard CMOS fabrication processes. The filter model is based upon an input optical signal formed as the sum of the Stokes vectors for each individual channel, transformed by the Mueller matrix that models the filter proper, resulting in an output optical signal that impinges on each photodiode. The results show that two- and three-channel systems can operate with a fixed-threshold comparator in the receiver circuit, but four-channel systems (and larger) will require channel coding of some form. For example, in the four-channel system, 10 of 16 distinct bit patterns are separable by the receiver. The model supports investigation of the range of variability tolerable in the fabrication of the on-chip polarization filters.
Chemical Technology Division, Annual technical report, 1991
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1992-03-01
Highlights of the Chemical Technology (CMT) Division`s activities during 1991 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for fluidized-bed combustion and coal-fired magnetohydrodynamics; (3) methods for treatment of hazardous and mixed hazardous/radioactive waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (5) processes for separating and recovering transuranic elements from nuclear waste streams; (6) recovery processes for discharged fuel and the uranium blanket in the Integral Fast Reactor (IFR); (7) processes for removalmore » of actinides in spent fuel from commercial water-cooled nuclear reactors and burnup in IFRs; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources; chemistry of superconducting oxides and other materials of interest with technological application; interfacial processes of importance to corrosion science, catalysis, and high-temperature superconductivity; and the geochemical processes involved in water-rock interactions occurring in active hydrothermal systems. In addition, the Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the technical programs at Argonne National Laboratory (ANL).« less
NASA Astrophysics Data System (ADS)
2011-08-01
A scientific session of the general meeting of the Physical Sciences Division of the Russian Academy of Sciences (RAS) dedicated to the 50th anniversary of the creation of lasers was held in the Conference Hall of the Lebedev Physical Institute, RAS, on 13 December 2010. The agenda of the session announced on the website www.gpad.ac.ru of the RAS Physical Sciences Division listed the following reports: (1) Matveev V A, Bagaev S N Opening speech; (2) Bratman V L, Litvak A G, Suvorov E V (Institute of Applied Physics, RAS, Nizhny Novgorod) "Mastering the terahertz domain: sources and applications"; (3) Balykin V I (Institute of Spectroscopy, RAS, Troitsk, Moscow region) "Ultracold atoms and atom optics"; (4) Ledentsov N N (Ioffe Physical Technical Institute, RAS, St. Petersburg) "New-generation surface-emitting lasers as the key element of the computer communication era"; (5) Krasil'nik Z F (Institute for the Physics of Microstructures, RAS, Nizhny Novgorod) "Lasers for silicon optoelectronics"; (6) Shalagin A M (Institute of Automation and Electrometry, Siberian Branch, RAS, Novosibirsk) "High-power diode-pumped alkali metal vapor lasers"; (7) Kul'chin Yu N (Institute for Automation and Control Processes, Far Eastern Branch, RAS, Vladivostok) "Photonics of self-organizing biomineral nanostructures"; (8) Kolachevsky N N (Lebedev Physical Institute, RAS, Moscow) "Laser cooling of rare-earth atoms and precision measurements". The papers written on the basis of reports 2-4, 7, and 8 are published below.Because the paper based on report 6 was received by the Editors late, it will be published in the October issue of Physics-Uspekhi together with the material related to the Scientific Session of the Physical Sciences Division, RAS, of 22 December 2010. • Mastering the terahertz domain: sources and applications, V L Bratman, A G Litvak, E V Suvorov Physics-Uspekhi, 2011, Volume 54, Number 8, Pages 837-844 • Ultracold atoms and atomic optics, V I Balykin Physics-Uspekhi, 2011, Volume 54, Number 8, Pages 844-852 • New-generation vertically emitting lasers as a key factor in the computer communication era, N N Ledentsov, J A Lott Physics-Uspekhi, 2011, Volume 54, Number 8, Pages 853-858 • The photonics of self-organizing biomineral nanostructures, Yu N Kulchin Physics-Uspekhi, 2011, Volume 54, Number 8, Pages 858-863 • Laser cooling of rare-earth atoms and precision measurements, N N Kolachevsky Physics-Uspekhi, 2011, Volume 54, Number 8, Pages 863-870
An Overview of the Computational Physics and Methods Group at Los Alamos National Laboratory
DOE Office of Scientific and Technical Information (OSTI.GOV)
Baker, Randal Scott
CCS Division was formed to strengthen the visibility and impact of computer science and computational physics research on strategic directions for the Laboratory. Both computer science and computational science are now central to scientific discovery and innovation. They have become indispensable tools for all other scientific missions at the Laboratory. CCS Division forms a bridge between external partners and Laboratory programs, bringing new ideas and technologies to bear on today’s important problems and attracting high-quality technical staff members to the Laboratory. The Computational Physics and Methods Group CCS-2 conducts methods research and develops scientific software aimed at the latest andmore » emerging HPC systems.« less
Clarke, Frank Wigglesworth
1890-01-01
The present bulletin represents work finished in the Division of Chemistry and Physics during the fiscal year 1888—'89, and resembles in general design and purpose its predecessors, Nos. 9, 27, 42, 55, and 60. It covers, however, only a part of the work actually accomplished, for some investigations are not yet completed, others will appear in special bulletins now in course of preparation, and many analyses will be published in forthcoming reports of the field geologists.
1990-04-01
and a stepped lead flattening filter. The electron energy used for these studies was 13 MeV. Dosimetry was performed by the Health Physics Division...VolI LJSAFSAPA-TR-90-4 AD-A222 722 SURVIVAL OF CHINESE HAMSTER OVARY CELLS FOLLOWING ULTRAHIGH DOSE RATE ELECTRON AND BREMISSTRAHLUNG RADIATION...Include Security ;a!. iatcn) Survival of Chinese Hamster Ovary Cells Following Ultrahigh Dose Rate Electron and Bremsstrahlung Radiation 12 PERSONAL
Sixteen years of collaborative learning through active sense-making in physics (CLASP) at UC Davis
NASA Astrophysics Data System (ADS)
Potter, Wendell; Webb, David; Paul, Cassandra; West, Emily; Bowen, Mark; Weiss, Brenda; Coleman, Lawrence; De Leone, Charles
2014-02-01
This paper describes our large reformed introductory physics course at UC Davis, which bioscience students have been taking since 1996. The central feature of this course is a focus on sense-making by the students during the 5 h per week discussion/labs in which the students take part in activities emphasizing peer-peer discussions, argumentation, and presentations of ideas. The course differs in many fundamental ways from traditionally taught introductory physics courses. After discussing the unique features of CLASP and its implementation at UC Davis, various student outcome measures are presented that show increased performance by students who took the CLASP course compared to students who took a traditionally taught introductory physics course. Measures we use include upper-division GPAs, MCAT scores, FCI gains, and MPEX-II scores.
Goddard's Astrophysics Science Division Annual Report 2011
NASA Technical Reports Server (NTRS)
Centrella, Joan; Reddy, Francis; Tyler, Pat
2012-01-01
The Astrophysics Science Division(ASD) at Goddard Space Flight Center(GSFC)is one of the largest and most diverse astrophysical organizations in the world, with activities spanning a broad range of topics in theory, observation, and mission and technology development. Scientific research is carried out over the entire electromagnetic spectrum from gamma rays to radiowavelengths as well as particle physics and gravitational radiation. Members of ASD also provide the scientific operations for three orbiting astrophysics missions WMAP, RXTE, and Swift, as well as the Science Support Center for the Fermi Gamma-ray Space Telescope. A number of key technologies for future missions are also under development in the Division, including X-ray mirrors, space-based interferometry, high contract imaging techniques to serch for exoplanets, and new detectors operating at gamma-ray, X-ray, ultraviolet, infrared, and radio wavelengths. The overriding goals of ASD are to carry out cutting-edge scientific research, and provide Project Scientist support for spaceflight missions, implement the goals of the NASA Strategic Plan, serve and suppport the astronomical community, and enable future missions by conceiving new conepts and inventing new technologies.
The Astrophysics Science Division Annual Report 2009
NASA Technical Reports Server (NTRS)
Oegerle, William (Editor); Reddy, Francis (Editor); Tyler, Pat (Editor)
2010-01-01
The Astrophysics Science Division (ASD) at Goddard Space Flight Center (GSFC) is one of the largest and most diverse astrophysical organizations in the world, with activities spanning a broad range of topics in theory, observation, and mission and technology development. Scientific research is carried out over the entire electromagnetic spectrum - from gamma rays to radio wavelengths - as well as particle physics and gravitational radiation. Members of ASD also provide the scientific operations for three orbiting astrophysics missions - WMAP, RXTE, and Swift, as well as the Science Support Center for the Fermi Gamma-ray Space Telescope. A number of key technologies for future missions are also under development in the Division, including X-ray mirrors, space-based interferometry, high contrast imaging techniques to search for exoplanets, and new detectors operating at gamma-ray, X-ray, ultraviolet, infrared, and radio wavelengths. The overriding goals of ASD are to carry out cutting-edge scientific research, provide Project Scientist support for spaceflight missions, implement the goals of the NASA Strategic Plan, serve and support the astronomical community, and enable future missions by conceiving new concepts and inventing new technologies.
Goddard's Astrophysics Science Division Annual Report 2013
NASA Technical Reports Server (NTRS)
Weaver, Kimberly A. (Editor); Reddy, Francis J. (Editor); Tyler, Patricia A. (Editor)
2014-01-01
The Astrophysics Science Division (ASD) at Goddard Space Flight Center (GSFC) is one of the largest and most diverse astrophysical organizations in the world, with activities spanning a broad range of topics in theory, observation, and mission and technology development. Scientific research is carried out over the entire electromagnetic spectrum from gamma rays to radio wavelengths as well as particle physics and gravitational radiation. Members of ASD also provide the scientific operations for two orbiting astrophysics missions Fermi Gamma-ray Space Telescope and Swift as well as the Science Support Center for Fermi. A number of key technologies for future missions are also under development in the Division, including X-ray mirrors, space-based interferometry, high contrast imaging techniques to search for exoplanets, and new detectors operating at gamma-ray, X-ray, ultraviolet, infrared, and radio wavelengths. The overriding goals of ASD are to carry out cutting-edge scientific research, provide Project Scientist support for spaceflight missions, implement the goals of the NASA Strategic Plan, serve and support the astronomical community, and enable future missions by conceiving new concepts and inventing new technologies.
Composite Overview and Composite Aerocover Overview
NASA Technical Reports Server (NTRS)
Caraccio, Anne; Tate, LaNetra; Dokos, Adam; Taylor, Brian; Brown, Chad
2014-01-01
Materials Science Division within the Engineering Directorate tasked by the Ares Launch Vehicle Division (LX-V) and the Fluids Testing and Technology Development Branch (NE-F6) to design, fabricate and test an aerodynamic composite shield for potential Heavy Lift Launch Vehicle infusion and a composite strut that will serve as a pathfinder in evaluating calorimeter data for the CRYOSTAT (cryogenic on orbit storage and transfer) Project. ATP project is to carry the design and development of the aerodynamic composite cover or "bracket" from cradle to grave including materials research, purchasing, design, fabrication, testing, analysis and presentation of the final product. Effort consisted of support from the Materials Testing & Corrosion Control Branch (NE-L2) for mechanical testing, the Prototype Development Branch (NE-L3) for CAD drawing, design/analysis, and fabrication, Materials & Processes Engineering Branch (NE-L4) for project management and materials selection; the Applied Physics Branch (NE-LS) for NDE/NDI support; and the Chemical Analysis Branch (NE-L6) for developmental systems evaluation. Funded by the Ares Launch Vehicle Division and the Fluids Testing and Technology Development Branch will provide ODC
Health and Safety Research Division: Progress report, October 1, 1985-March 31, 1987
DOE Office of Scientific and Technical Information (OSTI.GOV)
Walsh, P.J.
1987-09-01
This report summarizes the progress in our programs for the period October 1, 1985, through March 31, 1987. The division's presentations and publications represented important contributions on the forefronts of many fields. Eleven invention disclosures were filed, two patent applications submitted, and one patent issued. The company's transfers new technologies to the private sector more efficiently than in the past. The division's responsibilities to DOE under the Uranium Mill Tailings Remedial Action (UMTRA) program includes inclusion recommendations for 3100 properties. The nuclear medicine program developed new radiopharmaceuticals and radionuclide generators through clinical trials with some of our medical cooperatives. Twomore » major collaborative indoor air quality studies and a large epidemiological study of drinking water quality and human health were completed. ORNL's first scanning tunneling microscope (STM) has achieved single atom resolution and has produced some of the world's best images of single atoms on the surface of a silicon crystal. The Biological and Radiation Physics Section, designed and constructed a soft x-ray spectrometer which has exhibited a measuring efficiency that is 10,000 times higher than other equipment. 1164 refs.« less
NASA Astrophysics Data System (ADS)
A. Khan, M.; Qayyum, A.; I., Ahmed; T., Iqbal; A. Khan, A.; Waleed, R.; Mohuddin, B.; Malik, M.
2016-07-01
Not Available Supported by the Department of Physics, the University of AJK, High Tech. Centralized Instrumentation Lab, the University of AJK, Pakistan and the Experimental Physics Division, and the National Center for Physics, Islamabad Pakistan.
Nuclear and Particle Physics, Astrophysics and Cosmology : T-2 : LANL
linked in Search T-2, Nuclear and Particle Physics, Astrophysics and Cosmology T-2 Home T Division Focus Areas Nuclear Information Service Nuclear Physics Particle Physics Astrophysics Cosmology CONTACTS Group energy security, heavy ion physics, nuclear astrophysics, physics beyond the standard model, neutrino
Physics Division progress report for period ending September 30, 1983
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1983-12-01
Research and development activities are summarized in the following areas: Holifield Heavy Ion Research Facility, nuclear physics, the UNISOR program, accelerator-based atomic physics, theoretical physics, nuclear science applications, atomic physics and plasma diagnostics for fusion program, high-energy physics, the nuclear data project, and the relativistic heavy-ion collider study. Publications and papers presented are listed. (WHK)
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-29
..., Inc., Automation and Control Solutions Division, Including On-Site Leased Workers From Manpower... International, Inc., Automation and Control Solutions Division, Rock Island, Illinois. The notice was published...., Automation and Control Solutions Division. The Department has determined that these workers were sufficiently...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-02-01
... Packard Company Business Critical Systems, Mission Critical Business Software Division, OpenVMS Operating... Software Division, OpenVMS Operating System Development Group, Including an Employee Operating Out of the..., Mission Critical Business Software Division, OpenVMS Operating System Development Group, including...
Publications - GMC 252 | Alaska Division of Geological & Geophysical
DGGS GMC 252 Publication Details Title: Kemik sandstone - petrology, physical properties, and facies of Continental Margins Program, 1995, Kemik sandstone - petrology, physical properties, and facies of outcrop
Geometric Reasoning in an Active-Engagement Upper-Division E&M Classroom
ERIC Educational Resources Information Center
Cerny, Leonard Thomas
2012-01-01
A combination of theoretical perspectives is used to create a rich description of student reasoning when facing a highly-geometric electricity and magnetism problem in an upper-division active-engagement physics classroom at Oregon State University. Geometric reasoning as students encounter problem situations ranging from familiar to novel is…
Solid State Division progress report for period ending March 31, 1992
DOE Office of Scientific and Technical Information (OSTI.GOV)
Green, P.H.; Hinton, L.W.
1992-09-01
During this period, the division conducted a broad, interdisciplinary materials research program with emphasis on theoretical solid state physics, superconductivity, neutron scattering, synthesis and characterization of materials, ion beam and laser processing, and the structure of solids and surfaces. The High Flux Isotope Reactor was returned to full operation.
Can Peer Instruction Be Effective in Upper-Division Computer Science Courses?
ERIC Educational Resources Information Center
Bailey Lee, Cynthia; Garcia, Saturnino; Porter, Leo
2013-01-01
Peer Instruction (PI) is an active learning pedagogical technique. PI lectures present students with a series of multiple-choice questions, which they respond to both individually and in groups. PI has been widely successful in the physical sciences and, recently, has been successfully adopted by computer science instructors in lower-division,…
Federal Register 2010, 2011, 2012, 2013, 2014
2012-09-18
... overview of research activities from the NCTR Division of Bioinformatics and Computational Biology and the Division of Systems Biology. The SAB will also receive and update from the subcommittee on Immunotoxicology... advisory committee meetings and will make every effort to accommodate persons with physical disabilities or...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-01-08
...; Power Technologies Group Division; Including On-Site Leased Workers From Manpower Milwaukee, WI; Notice... former workers of Dana Holding Company, Power Technologies Group Division, Milwaukee, Wisconsin (subject... reconsideration investigation, I determine that workers of Dana Holding Company, Power Technologies Group Division...
Principles and Methods of Adapted Physical Education and Recreation.
ERIC Educational Resources Information Center
Arnheim, Daniel D.; And Others
This text is designed for the elementary and secondary school physical educator and the recreation specialist in adapted physical education and, more specifically, as a text for college courses in adapted and corrective physical education and therapeutic recreation. The text is divided into four major divisions: scope, key teaching and therapy…
78 FR 25101 - Proposal Review Panel for Physics, Notice of Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-04-29
... NATIONAL SCIENCE FOUNDATION Proposal Review Panel for Physics, Notice of Meeting In accordance... Physics, 1208 Date and Time: Tuesday, April 30, 2013; 8:00 a.m.-6:00 p.m., Wednesday, May 1, 2013, 8:00 a... Meeting: Partially Closed. Contact Person: Mark Coles, Director of Large Facilities, Division of Physics...
Solid State Division annual progress report for period ending December 31, 1975
DOE Office of Scientific and Technical Information (OSTI.GOV)
Wilkinson, M.K.; Young, F.W. Jr.
1976-05-01
Research activities are reported in programs on theoretical solid state physics, physical properties of solids, radiation effects in metals, neutron scattering, research materials, and isotope research materials. (JRD)
75 FR 10328 - Advisory Committee for Mathematical and Physical Sciences; Notice of Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-03-05
... Person: Dr. Morris L. Aizenman, Senior Science Associate, Directorate for Mathematical and Physical... Directorate; Report of NSF Advisory Working Groups; Meeting of MPSAC with Divisions within MPS Directorate...
Summaries of physical research in the geosciences
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1990-10-01
The Department of Energy supports research in the geosciences in order to provide a sound foundation of fundamental knowledge in those areas of the geosciences which are germane to the Department of Energy's many missions. The Division of Engineering and Geosciences, part of the Office of Basic Energy Sciences of the Office of Energy Research, supports the Geosciences Research Program. The participants in this program include Department of Energy laboratories, industry, universities, and other governmental agencies. The summaries in this document, prepared by the investigators, briefly describe the scope of the individual programs. The Geosciences Research Program includes research inmore » geology, petrology, geophysics, geochemistry, solar physics, solar-terrestrial relationships, aeronomy, seismology, and natural resource modeling and analysis, including their various subdivisions and interdisciplinary areas. All such research is related either directly or indirectly to the Department of Energy's long-range technological needs.« less
National Combustion Code: A Multidisciplinary Combustor Design System
NASA Technical Reports Server (NTRS)
Stubbs, Robert M.; Liu, Nan-Suey
1997-01-01
The Internal Fluid Mechanics Division conducts both basic research and technology, and system technology research for aerospace propulsion systems components. The research within the division, which is both computational and experimental, is aimed at improving fundamental understanding of flow physics in inlets, ducts, nozzles, turbomachinery, and combustors. This article and the following three articles highlight some of the work accomplished in 1996. A multidisciplinary combustor design system is critical for optimizing the combustor design process. Such a system should include sophisticated computer-aided design (CAD) tools for geometry creation, advanced mesh generators for creating solid model representations, a common framework for fluid flow and structural analyses, modern postprocessing tools, and parallel processing. The goal of the present effort is to develop some of the enabling technologies and to demonstrate their overall performance in an integrated system called the National Combustion Code.
Forensic science: the truth is out there
NASA Astrophysics Data System (ADS)
Herold, Lynne D.
2002-06-01
Criminalistics, one of the many sub-divisions of forensic science, is an applied science in which items of evidence are analyzed to provide investigative information and scientific evidence to be used in courts of law. Laboratories associated with governmental public agencies are typically involved in criminal cases as opposed to civil cases, and those types of cases that fall within the jurisdiction of the particular agency. Common analytical divisions within criminalistics laboratories include blood alcohol testing, toxicology, narcotics, questioned documents, biology, firearms, latent fingerprints, physical and trace evidence sections. Specialized field investigative services may be provided in the areas of clandestine drug laboratories and major crimes (firearms, biology, trace, arson/explosives). Forensic science best practice requires the use of non-destructive testing whenever reasonably possible. Several technically difficult situations (bodies and evidence encased in cement and metal) are presented as a challenge to audience.
Impact of physical confinement on nuclei geometry and cell division dynamics in 3D spheroids.
Desmaison, Annaïck; Guillaume, Ludivine; Triclin, Sarah; Weiss, Pierre; Ducommun, Bernard; Lobjois, Valérie
2018-06-08
Multicellular tumour spheroids are used as a culture model to reproduce the 3D architecture, proliferation gradient and cell interactions of a tumour micro-domain. However, their 3D characterization at the cell scale remains challenging due to size and cell density issues. In this study, we developed a methodology based on 3D light sheet fluorescence microscopy (LSFM) image analysis and convex hull calculation that allows characterizing the 3D shape and orientation of cell nuclei relative to the spheroid surface. By using this technique and optically cleared spheroids, we found that in freely growing spheroids, nuclei display an elongated shape and are preferentially oriented parallel to the spheroid surface. This geometry is lost when spheroids are grown in conditions of physical confinement. Live 3D LSFM analysis of cell division revealed that confined growth also altered the preferential cell division axis orientation parallel to the spheroid surface and induced prometaphase delay. These results provide key information and parameters that help understanding the impact of physical confinement on cell proliferation within tumour micro-domains.
Genome organization during the cell cycle: unity in division.
Golloshi, Rosela; Sanders, Jacob T; McCord, Rachel Patton
2017-09-01
During the cell cycle, the genome must undergo dramatic changes in structure, from a decondensed, yet highly organized interphase structure to a condensed, generic mitotic chromosome and then back again. For faithful cell division, the genome must be replicated and chromosomes and sister chromatids physically segregated from one another. Throughout these processes, there is feedback and tension between the information-storing role and the physical properties of chromosomes. With a combination of recent techniques in fluorescence microscopy, chromosome conformation capture (Hi-C), biophysical experiments, and computational modeling, we can now attribute mechanisms to many long-observed features of chromosome structure changes during cell division. Apparent conflicts that arise when integrating the concepts from these different proposed mechanisms emphasize that orchestrating chromosome organization during cell division requires a complex system of factors rather than a simple pathway. Cell division is both essential for and threatening to proper genome organization. As interphase three-dimensional (3D) genome structure is quite static at a global level, cell division provides an important window of opportunity to make substantial changes in 3D genome organization in daughter cells, allowing for proper differentiation and development. Mistakes in the process of chromosome condensation or rebuilding the structure after mitosis can lead to diseases such as cancer, premature aging, and neurodegeneration. WIREs Syst Biol Med 2017, 9:e1389. doi: 10.1002/wsbm.1389 For further resources related to this article, please visit the WIREs website. © 2017 Wiley Periodicals, Inc.
Materials for Active Engagement in Nuclear and Particle Physics Courses
NASA Astrophysics Data System (ADS)
Loats, Jeff; Schwarz, Cindy; Krane, Ken
2013-04-01
Physics education researchers have developed a rich variety of research-based instructional strategies that now permeate many introductory courses. Carrying these active-engagement techniques to upper-division courses requires effort and is bolstered by experience. Instructors interested in these methods thus face a large investment of time to start from scratch. This NSF-TUES grant, aims to develop, test and disseminate active-engagement materials for nuclear and particle physics topics. We will present examples of these materials, including: a) Conceptual discussion questions for use with Peer Instruction; b) warm-up questions for use with Just in Time Teaching, c) ``Back of the Envelope'' estimation questions and small-group case studies that will incorporate use of nuclear and particle databases, as well as d) conceptual exam questions.
Microgravity science and applications. Program tasks and bibliography for FY 1994
NASA Technical Reports Server (NTRS)
1995-01-01
This annual report includes research projects funded by the Office of Life and Microgravity Sciences and Applications, Microgravity Science and Applications Division, during FY 1994. It is a compilation of program tasks (objective, description, significance, progress, students funded under research, and bibliographic citations) for flight research and ground-based research in five major scientific disciplines: benchmark science, biotechnology, combustion science, fluid physics, and materials science. ATD (Advanced Technology Development) program task descriptions are also included. The bibliography cites the related PI (Principal Investigator) publications and presentations for these program tasks in FY 1994. Three appendices include Table of Acronyms, Guest Investigator Index, and Principal Investigator Index.
Microgravity science & applications. Program tasks and bibliography for FY 1995
NASA Technical Reports Server (NTRS)
1996-01-01
This annual report includes research projects funded by the Office of Life and Microgravity Sciences and Applications, Microgravity Science and Applications Division, during FY 1994. It is a compilation of program tasks (objective, description, significance, progress, students funded under research, and bibliographic citations) for flight research and ground based research in five major scientific disciplines: benchmark science, biotechnology, combustion science, fluid physics, and materials science. Advanced technology development (ATD) program task descriptions are also included. The bibliography cites the related principle investigator (PI) publications and presentations for these program tasks in FY 1994. Three appendices include a Table of Acronyms, a Guest Investigator index and a Principle Investigator index.
Experimental Measurement of Self-Diffusion in a Strongly Coupled Plasma
2016-08-04
Killian1 1Department of Physics and Astronomy , Rice University, Houston, Texas 77005, USA 2Theoretical Division, Los Alamos National Laboratory, Los...2] L. Spitzer, Physics of Fully Ionized Gases, Interscience Tracts on Physics and Astronomy (Interscience Publishers, New York, 1962), Vol. 3. [3] L
Supplemental Instruction in Physical Chemistry I
ERIC Educational Resources Information Center
Toby, Ellen; Scott, Timothy P.; Migl, David; Kolodzeji, Elizabeth
2016-01-01
Physical chemistry I at Texas A&M University is an upper division course requiring mathematical and analytical skills. As such, this course poses a major problem for many Chemistry, Engineering, Biochemistry and Genetics majors. Comparisons between participants and non-participants in Supplemental Instruction for physical chemistry were made…
Title: Public Comment on Department of Health and Human Services (DHHS) 2018 Physical Activity Guidelines Author: Wayne E. Cascio, Director, Environmental Public Health Division, US EPA Abstract: In the 2008 Physical Activity Guidelines, the effects of air pollution and advers...
76 FR 14996 - Advisory Committee for Mathematical and Physical Sciences; Notice of Meeting
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2011-03-18
.... Aizenman, Senior Science Associate, Directorate for Mathematical and Physical Sciences, Room 1005, National... Committee of Visitors Report of NSF Advisory Working Groups Meeting of MPSAC with Divisions within MPS...
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2013-02-06
...., Business & Information Solutions (BIS) Division, including on-site leased workers of Cognizant Technology..., Inc., Business & Information Solutions (BIS) Division Including On-Site Leased Workers From Procurestaff, Cognizant, Infosys, Wipro, and TCS; Plano, TX; PEPSICO, Inc., Business & Information Solutions...
Women of the Solar Physics Division
NASA Astrophysics Data System (ADS)
Dupree, Andrea K.
2007-05-01
In 1970, when the Solar Physics Division was established, the invitation to become a founding member of the Division was extended by the Organizing Committee to a group of 61 solar scientists of which 4 were women (6.6%). At the first SPD meeting in Huntsville AL (1970), 11% of the papers were given by women. Near that time (1973), women accounted for 8% of all AAS members. The representation of women in the SPD has more than doubled in percentage since the first years. Currently, women comprise about 15.5% of SPD members which, however, is less than the percentage in the AAS general membership (18%) in March 2007. In the 37 years that the SPD has existed, women have frequently held the office of Treasurer and Secretary of the Division and made notable contributions. Elske V.P. Smith was elected the first Treasurer of the SPD and that began a long tradition. Women appear to be considered exceptionally trustworthy since they have been reelected and occupied the position of Treasurer for 75% of the available terms. The Office of SPD Secretary has seen a woman for 13% of the terms. Yet women are practically absent among those in the top leadership positions and in the lists of prize winners of the SPD. Among the 21 SPD Chairs, only 1 woman, Judith T. Karpen, has held that office. The Hale Prize has been awarded 19 times in almost 3 decades, and all of the awardees have been men. Several aspects of the participation of women and their contributions to the Solar Physics Division of the AAS will be reviewed, and compared to that of the AAS and astronomy in general.
Harry Mergler with His Modified Differential Analyzer
1951-06-21
Harry Mergler stands at the control board of a differential analyzer in the new Instrument Research Laboratory at the National Advisory Committee for Aeronautics (NACA) Lewis Flight Propulsion Laboratory. The differential analyzer was a multi-variable analog computation machine devised in 1931 by Massachusetts Institute of Technology researcher and future NACA Committee member Vannevar Bush. The mechanical device could solve computations up to the sixth order, but had to be rewired before each new computation. Mergler modified Bush’s differential analyzer in the late 1940s to calculate droplet trajectories for Lewis’ icing research program. In four days Mergler’s machine could calculate what previously required weeks. NACA Lewis built the Instrument Research Laboratory in 1950 and 1951 to house the large analog computer equipment. The two-story structure also provided offices for the Mechanical Computational Analysis, and Flow Physics sections of the Physics Division. The division had previously operated from the lab’s hangar because of its icing research and flight operations activities. Mergler joined the Instrument Research Section of the Physics Division in 1948 after earning an undergraduate degree in Physics from the Case Institute of Technology. Mergler’s focus was on the synthesis of analog computers with the machine tools used to create compressor and turbine blades for jet engines.
Micro- and Macroscale Ideas of Current among Upper-Division Electrical Engineering Students
ERIC Educational Resources Information Center
Adam, Gina C.; Harlow, Danielle B.; Lord, Susan M.; Kautz, Christian H.
2017-01-01
The concept of electric current is fundamental in the study of electrical engineering (EE). Students are often exposed to this concept in their daily lives and early in middle school education. Lower-division university courses are usually limited to the study of passive electronic devices and simple electric circuits. Semiconductor physics is an…
NASA Astrophysics Data System (ADS)
2010-12-01
A scientific session of the Physical Sciences Division, Russian Academy of Sciences (RAS), was held on 26 May 2010 at the conference hall of the Lebedev Physical Institute, RAS. The session was devoted to the 85th birthday of S I Syrovatskii. The program announced on the web page of the RAS Physical Sciences Division (www.gpad.ac.ru) contained the following reports: (1) Zelenyi L M (Space Research Institute, RAS, Moscow) "Current sheets and reconnection in the geomagnetic tail"; (2) Frank A G (Prokhorov General Physics Institute, RAS, Moscow) "Dynamics of current sheets as the cause of flare events in magnetized plasmas"; (3) Kuznetsov V D (Pushkov Institute of Terrestrial Magnetism, the Ionosphere, and Radio Wave Propagation, RAS, Troitsk, Moscow region) "Space research on the Sun"; (4) Somov B V (Shternberg Astronomical Institute, Lomonosov Moscow State University, Moscow) "Strong shock waves and extreme plasma states"; (5) Zybin K P (Lebedev Physical Institute, RAS, Moscow) "Structure functions for developed turbulence"; (6) Ptuskin V S (Pushkov Institute of Terrestrial Magnetism, the Ionosphere, and Radio Wave Propagation, RAS, Troitsk, Moscow region) "The origin of cosmic rays." Papers based on reports 1-4 and 6 are published in what follows. • Metastability of current sheets, L M Zelenyi, A V Artemyev, Kh V Malova, A A Petrukovich, R Nakamura Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 933-941 • Dynamics of current sheets underlying flare-type events in magnetized plasmas, A G Frank Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 941-947 • Space research of the Sun, V D Kuznetsov Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 947-954 • Magnetic reconnection in solar flares, B V Somov Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 954-958 • The origin of cosmic rays, V S Ptuskin Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 958-961
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Identity Statuses in Upper-Division Physics Students
ERIC Educational Resources Information Center
Irving, Paul W.; Sayre, Eleanor C.
2016-01-01
We use the theories of identity statuses and communities of practice to describe three different case studies of students finding their paths through undergraduate physics and developing a physics subject-specific identity. Each case study demonstrates a unique path that reinforces the link between the theories of communities of practice and…
Physical Disabilities: Education and Related Services, Fall 1999-Spring 2000.
ERIC Educational Resources Information Center
Kulik, Barbara J., Ed.
2000-01-01
These two journal issues discuss topics relating to the physical and health disabilities of children and adults. The first issue contains the following articles: (1) "Position Statement on Specialized Health Care Procedures," by the Council for Exceptional Children's Division on Physical and Health Disabilities that calls for all…
Ego Network Analysis of Upper Division Physics Student Survey
NASA Astrophysics Data System (ADS)
Brewe, Eric
2017-01-01
We present the analysis of student networks derived from a survey of upper division physics students. Ego networks focus on the connections that center on one person (the ego). The ego networks in this talk come from a survey that is part of an overall project focused on understanding student retention and persistence. The theory underlying this work is that social and academic integration are essential components to supporting students continued enrollment and ultimately graduation. This work uses network analysis as a way to investigate the role of social and academic interactions in retention and persistence decisions. We focus on student interactions with peers, on mentoring interactions with physics department faculty, and on engagement in physics groups and how they influence persistence. Our results, which are preliminary, will help frame the ongoing research project and identify ways in which departments can support students. This work supported by NSF grant #PHY 1344247.
Report of work done in the division of chemistry and physics, mainly during the fiscal year 1889-90
Clarke, Frank Wigglesworth
1891-01-01
This bulletin, like the bulletins issued in previous years and numbered 9, 27, 42, 55, 60, and 64, contains a partial record of work completed in the chemical and physical laboratories of the Survey Turing one tiscAl year. It represents, however, only a portion of the whole work done, for various investigations, begun during the year 1859—'90, are still unfinished; many analyses are reserved for publication in other reports; and certain of the larger researches, notably the physical studies of Dr. Barns, will appear in independent form as separate bulletins. In the annual reports of the Director of the Survey a tolerably complete summary of the work done in the Division of Chemistry and Physics is always given, and such summaries, taken in connection with these bulletins, convey.a fair idea of the amount of ground actually covered.
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Establishment of the New Ecuadorian Solar Physics Phenomena Division
NASA Astrophysics Data System (ADS)
Lopez, E. D.
2014-02-01
Crucial physical phenomena occur in the equatorial atmosphere and ionosphere, which are currently understudied and poorly understood. Thus, scientific campaigns for monitoring the equatorial region are required in order to provide the necessary data for the physical models. Ecuador is located in strategic geographical position where these studies can be performed, providing quality data for the scientific community working in understanding the nature of these physical systems. The Quito Astronomical Observatory of National Polytechnic School is moving in this direction by promoting research in space sciences for the study of the equatorial zone. With the participation and the valuable collaboration of international initiatives such us AWESOME, MAGDAS, SAVNET and CALLISTO, the Quito Observatory is establishing a new space physics division on the basis of the International Space Weather Initiative. In this contribution, the above initiative is presented by inviting leaders of other scientific projects to deploy its instruments and to work with us providing the necessary support to the creation of this new strategic research center
NASA Astrophysics Data System (ADS)
2011-01-01
A joint scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS) and the scientific councils of the P N Lebedev Physical Institute, RAS and the A M Prokhorov General Physics Institute, RAS dedicated to the 50th anniversary of the advent of the laser was held in the conference hall of the Lebedev Physical Institute on 21 April 2010. The following reports were put on the session's agenda posted on the website www.gpad.ac.ru of the Physical Sciences Division, RAS: (1) Alferov Zh I (A F Ioffe Physical-Technical Institute RAS, St. Petersburg) "Semiconductor heterostructure lasers"; (2) Bagaev S N (Institute of Laser Physics, Siberian Branch, RAS, Novosibirsk) "Ultrahigh-resolution spectra and their fundamental application"; (3) Masalov A V (P N Lebedev Physical Institute, RAS, Moscow) "Optical Department of the Lebedev Physical Institute: early work on lasers"; (4) Garnov S V, Shcherbakov I A (A M Prokhorov General Physics Institute, RAS, Moscow) "Laser sources of megavolt terahertz pulses"; (5) Sergeev A M, Khazanov E A (Institute of Applied Physics, RAS, Nizhny Novgorod) "Structural functions of a developed turbulence"; (6) Popov Yu M (P N Lebedev Physical Institute, RAS, Moscow) "The early history of semiconductor lasers"; (7) Manenkov A A (A M Prokhorov General Physics Institute, RAS, Moscow) "Self-focusing laser pulses: current state and future prospects". The papers written on the basis of reports 3, 4, 6, and 7 are published below. A comprehensive version of report 5 prepared in the form of a review paper is published in this issue of Physics-Uspekhi on p. 9. • Optical Department of the Lebedev Physical Institute: early work on lasers, A V Masalov Physics-Uspekhi, 2011, Volume 54, Number 1, Pages 87-91 • Laser methods for generating megavolt terahertz pulses, S V Garnov, I A Shcherbakov Physics-Uspekhi, 2011, Volume 54, Number 1, Pages 91-96 • The early history of the injection laser, Yu M Popov Physics-Uspekhi, 2011, Volume 54, Number 1, Pages 96-100 • Self-focusing of laser pulses: current state and future prospects, A A Manenkov Physics-Uspekhi, 2011, Volume 54, Number 1, Pages 100-104
A morphologically specialized soldier caste improves colony defense in a neotropical eusocial bee.
Grüter, Christoph; Menezes, Cristiano; Imperatriz-Fonseca, Vera L; Ratnieks, Francis L W
2012-01-24
Division of labor among workers is common in insect societies and is thought to be important in their ecological success. In most species, division of labor is based on age (temporal castes), but workers in some ants and termites show morphological specialization for particular tasks (physical castes). Large-headed soldier ants and termites are well-known examples of this specialization. However, until now there has been no equivalent example of physical worker subcastes in social bees or wasps. Here we provide evidence for a physical soldier subcaste in a bee. In the neotropical stingless bee Tetragonisca angustula, nest defense is performed by two groups of guards, one hovering near the nest entrance and the other standing on the wax entrance tube. We show that both types of guards are 30% heavier than foragers and of different shape; foragers have relatively larger heads, whereas guards have larger legs. Low variation within each subcaste results in negligible size overlap between guards and foragers, further indicating that they are distinct physical castes. In addition, workers that remove garbage from the nest are of intermediate size, suggesting that they might represent another unrecognized caste. Guards or soldiers are reared in low but sufficient numbers (1-2% of emerging workers), considering that <1% usually perform this task. When challenged by the obligate robber bee Lestrimelitta limao, an important natural enemy, larger workers were able to fight for longer before being defeated by the much larger robber. This discovery opens up opportunities for the comparative study of physical castes in social insects, including the question of why soldiers appear to be so much rarer in bees than in ants or termites.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Thayer, K.J.
The past year has seen several of the Physics Division`s new research projects reach major milestones with first successful experiments and results: the atomic physics station in the Basic Energy Sciences Research Center at the Argonne Advanced Photon Source was used in first high-energy, high-brilliance x-ray studies in atomic and molecular physics; the Short Orbit Spectrometer in Hall C at the Thomas Jefferson National Accelerator (TJNAF) Facility that the Argonne medium energy nuclear physics group was responsible for, was used extensively in the first round of experiments at TJNAF; at ATLAS, several new beams of radioactive isotopes were developed andmore » used in studies of nuclear physics and nuclear astrophysics; the new ECR ion source at ATLAS was completed and first commissioning tests indicate excellent performance characteristics; Quantum Monte Carlo calculations of mass-8 nuclei were performed for the first time with realistic nucleon-nucleon interactions using state-of-the-art computers, including Argonne`s massively parallel IBM SP. At the same time other future projects are well under way: preparations for the move of Gammasphere to ATLAS in September 1997 have progressed as planned. These new efforts are imbedded in, or flowing from, the vibrant ongoing research program described in some detail in this report: nuclear structure and reactions with heavy ions; measurements of reactions of astrophysical interest; studies of nucleon and sub-nucleon structures using leptonic probes at intermediate and high energies; atomic and molecular structure with high-energy x-rays. The experimental efforts are being complemented with efforts in theory, from QCD to nucleon-meson systems to structure and reactions of nuclei. Finally, the operation of ATLAS as a national users facility has achieved a new milestone, with 5,800 hours beam on target for experiments during the past fiscal year.« less
Chemistry Division. Quarterly progress report for period ending June 30, 1949
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1949-09-14
Progress reports are presented for the following tasks: (1) nuclear and chemical properties of heavy elements (solution chemistry, phase rule studies); (2) nuclear and chemical properties of elements in the fission product region; (3) general nuclear chemistry; (4) radio-organic chemistry; (5) chemistry of separations processes; (6) physical chemistry and chemical physics; (7) radiation chemistry; (8) physical measurements and instrumentation; and (9) analytical chemistry. The program of the chemistry division is divided into two efforts of approximately equal weight with respect to number of personnel, chemical research, and analytical service for the Laboratory. The various research problems fall into the followingmore » classifications: (1) chemical separation processes for isolation and recovery of fissionable material, production of radioisotopes, and military applications; (2) reactor development; and (3) fundamental research.« less
1991-08-30
members: domestic $310, Canada, convenience a change of address authors. Mexico , Central and South America, form is included in every issue of - and...Canada, Mexico , volumes available on microfilm. be purchased at the single-copy Centi-al Ameiica, WVest Indies $47; Europe, South America, Mediter...least 6 weeks advance no- bcribel Services Division, American $70, Canada, Mexico , Central and tice. For address changes, please Institute of Physics, 500
The doctrine of integration in psychiatry and the pre-Socratics.
Plastow, Michael
2009-02-01
The notion of the integration of the mental and the physical, and of a number of other divisions, is widely promoted in psychiatry. René Descartes is often held responsible for divisions that appear in our profession and in our practice. The wish for integration, though, fails to recognize the way in which such divisions might be fundamental and necessary in our profession. This paper describes the endeavour in psychiatry and in Western thought more generally to cover up such divisions. It traces the drive towards integration to the origins of contemporary thought in Plato and Aristotle, in order to examine what preceded such thought. The pre-Socratic thinkers were able to articulate fundamental and radical divisions, an ability which has been lost since the writings of Plato and Aristotle. A reappraisal of the pre-Socratics can lead to a reconsideration of the ongoing attempt to cover over the necessary divisions which mark our clinical practice, in order to be able to value what is most fundamental in our profession.
NASA Astrophysics Data System (ADS)
2016-05-01
A scientific session of the General meeting of the Physical Sciences Division of the Russian Academy of Sciences (RAS) was held in the conference hall of the Lebedev Physical Institute, RAS on 7 December 2015. The papers collected in this issue were written based on talks given at the session (the program of the session is available on the RAS Physical Sciences Division website http://www.gpad.ac.ru). (1) Loshchenov V B (Prokhorov General Physics Institute, RAS, Moscow) "Pharmacodynamics of a nanophotosensitizer under irradiation by an electromagnetic field: from THz to Cherenkov radiation"; (2) Zhuikov B L (Institute for Nuclear Research, RAS, Moscow) "Successes and problems in the development of medical radioisotope production in Russia"; (3) Tikhonov Yu A (Budker Institute of Nuclear Physics, SB RAS, Novosibirsk) "Applying nuclear physics methods in healthcare"; (4) Turchin I V (Institute of Applied Physics, RAS, Nizhny Novgorod) "Methods of biomedical optical imaging: from subcellular structures to tissues and organs"; (5) Breus T K, Petrukovich A A (Space Research Institute, RAS, Moscow), Binhi V N (Prokhorov General Physics Institute, RAS, Moscow; Lomonosov Moscow State University, Moscow) "Magnetic factor in solar-terrestrial relations and its impact on the human body: physical problems and prospects for research"; (6) Makarov D I (Special Astrophysical Observatory, RAS, Nizhnii Arkhyz, Zelenchukskii region, Karachai-Cherkessian Republic) "Studying the Local University". Papers based on oral reports 2, 4, and 5 are presented below. • Successes and problems in the development of medical radioisotope production in Russia, B L Zhuikov Physics-Uspekhi, 2016, Volume 59, Number 5, Pages 481-486 • Methods of biomedical optical imaging: from subcellular structures to tissues and organs, I V Turchin Physics-Uspekhi, 2016, Volume 59, Number 5, Pages 487-501 • Magnetic factor in solar-terrestrial relations and its impact on the human body: physical problems and prospects for research, T K Breus, V N Binhi, A A Petrukovich Physics-Uspekhi, 2016, Volume 59, Number 5, Pages 502-510
Meeting moved due to discriminatory law
NASA Astrophysics Data System (ADS)
Kruesi, Liz
2016-09-01
The American Physical Society (APS) has relocated the 2018 annual meeting of the Division of Atomic, Molecular and Optical Physics (DAMOP) over concerns about a new state law that discriminates against members of the lesbian, gay, bisexual and transgender (LGBT) community.
Health and Safety Research Division progress report, July 1, 1984-September 30, 1985
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1986-01-01
This report summarizes progress made for the period July 1984 through September 1985. Sections describe research in health studies, dosimetry and biophysical transport, biological and radiation physics, chemical physics, and risk analysis. (ACR)
GSFC Heliophysics Science Division FY2010 Annual Report
NASA Technical Reports Server (NTRS)
Gilbert, Holly R.; Strong, Keith T.; Saba, Julia L. R.; Clark, Judith B.; Kilgore, Robert W.; Strong, Yvonne M.
2010-01-01
This report is intended to record and communicate to our colleagues, stakeholders, and the public at large about heliophysics scientific and flight program achievements and milestones for 2010, for which NASA Goddard Space Flight Center's Heliophysics Science Division (HSD) made important contributions. HSD comprises approximately 323 scientists, technologists, and administrative personnel dedicated to the goal of advancing our knowledge and understanding of the Sun and the wide variety of domains that its variability influences. Our activities include: Leading science investigations involving flight hardware, theory, and data analysis and modeling that will answer the strategic questions posed in the Heliophysics Roadmap; Leading the development of new solar and space physics mission concepts and support their implementation as Project Scientists; Providing access to measurements from the Heliophysics Great Observatory through our Science Information Systems; and Communicating science results to the public and inspiring the next generation of scientists and explorers.
GSFC Heliophysics Science Division 2008 Science Highlights
NASA Technical Reports Server (NTRS)
Gilbert, Holly R.; Strong, Keith T.; Saba, Julia L. R.; Firestone, Elaine R.
2009-01-01
This report is intended to record and communicate to our colleagues, stakeholders, and the public at large about heliophysics scientific and flight program achievements and milestones for 2008, for which NASA Goddard Space Flight Center's Heliophysics Science Division (HSD) made important contributions. HSD comprises approximately 261 scientists, technologists, and administrative personnel dedicated to the goal of advancing our knowledge and understanding of the Sun and the wide variety of domains that its variability influences. Our activities include Lead science investigations involving flight hardware, theory, and data analysis and modeling that will answer the strategic questions posed in the Heliophysics Roadmap; Lead the development of new solar and space physics mission concepts and support their implementation as Project Scientists; Provide access to measurements from the Heliophysics Great Observatory through our Science Information Systems, and Communicate science results to the public and inspire the next generation of scientists and explorers.
GSFC Heliophysics Science Division 2009 Science Highlights
NASA Technical Reports Server (NTRS)
Strong, Keith T.; Saba, Julia L. R.; Strong, Yvonne M.
2009-01-01
This report is intended to record and communicate to our colleagues, stakeholders, and the public at large about heliophysics scientific and flight program achievements and milestones for 2009, for which NASA Goddard Space Flight Center's Heliophysics Science Division (HSD) made important contributions. HSD comprises approximately 299 scientists, technologists, and administrative personnel dedicated to the goal of advancing our knowledge and understanding of the Sun and the wide variety of domains that its variability influences. Our activities include: Leading science investigations involving flight hardware, theory, and data analysis and modeling that will answer the strategic questions posed in the Heliophysics Roadmap; Leading the development of new solar and space physics mission concepts and support their implementation as Project Scientists; Providing access to measurements from the Heliophysics Great Observatory through our Science Information Systems; and Communicating science results to the public and inspiring the next generation of scientists and explorers.
ERIC Educational Resources Information Center
Stanley, Jacob T.; Su, Weifeng; Lewandowski, H. J.
2017-01-01
We demonstrate how students' use of modeling can be examined and assessed using student notebooks collected from an upper-division electronics lab course. The use of models is a ubiquitous practice in undergraduate physics education, but the process of constructing, testing, and refining these models is much less common. We focus our attention on…
The Effects of Ejection Seat Cushion Design on Physical Fatigue and Cognitive Performance
2006-11-01
Protection Division Biomechanics Branch Wright-Patterson AFB Ohio 45433-7947 Approved for public release; distribution is unlimited. NOTICE...ADDRESS(ES *Air Force Materiel Command Air Force Research Laboratory Human Effectiveness Directorate Biosciences & Protection Division Biomechanics ...Dayton, Ohio. Analyses of the data were accomplished by the Biomechanics Branch, Human Effectiveness Directorate of the Air Force Research Laboratory
An Evaluation of the Model School Division (MSD) Preschool Program for the School Year 1973-74.
ERIC Educational Resources Information Center
District of Columbia Public Schools, Washington, DC. Dept. of Research and Evaluation.
This study was designed to assess the extent to which children served by the Model Schools Division Preschool Program developed socially, intellectually, physically and emotionally during the 1973-74 school year. This evaluation was also designed to measure the appropriateness of the learning environment and the amount of services provided by the…
Colorado Upper-Division Electrostatics Diagnostic: A Conceptual Assessment for the Junior Level
ERIC Educational Resources Information Center
Chasteen, Stephanie V.; Pepper, Rachel E.; Caballero, Marcos D.; Pollock, Steven J.; Perkins, Katherine K.
2012-01-01
As part of an effort to systematically improve our junior-level E&M I course, we have developed a tool to assess student conceptual learning of electrostatics at the upper division. Together with a group of physics faculty, we established a list of learning goals for the course that, with results from student observations and interviews,…
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NASA Astrophysics Data System (ADS)
Tolhurst, Jeffrey Wayne
Most students enrolled in lower division physical geology courses are non-majors and tend to finish the course with little appreciation of what it is geologists really do. They may also be expected to analyze, synthesize, and apply knowledge from previous laboratory experiences with little or no instruction and/or practice in utilizing the critical thinking skills necessary to do so. This study sought to answer two research questions: (1) do physical geology students enrolled in a course designed around a mining simulation activity perform better cognitively than students who are taught the same curriculum in the traditional fashion; and (2) do students enrolled in the course gain a greater appreciation of physical geology and the work that geologists do. Eighty students enrolled in the course at Columbia College, Sonora, California over a two year period. During the first year, thirty-one students were taught the traditional physical geology curriculum. During the second year, forty-nine students were taught the traditional curriculum up until week nine, then they were taught a cooperative learning mining simulation activity for three weeks. A static group, split plot, repeated measures design was used. Pre- and post-tests were administered to students in both the control and treatment groups. The cognitive assessment instrument was validated by content area experts in the University of South Carolina Geological Sciences Department. Students were given raw lithologic, gravimetric, topographic, and environmental data with which to construct maps and perform an overlay analysis. They were tested on the cognitive reasoning and spatial analysis they used to make decisions about where to test drill for valuable metallic ores. The affective instrument used a six point Likert scale to assess students' perceived enjoyment, interest, and importance of the material. Gains scores analysis of cognitive achievement data showed a mean of 2.43 for the control group and 4.47 for the treatment group, statistically significantly different at the alpha = 0.05 level (p = 0.0038). Gains scores for the affective data indicated no statistically significant differences between the treatment and control groups. The simulation seems to make a difference in terms of students' intellectual performance, but not in terms of their attitudinal perceptions of the course. Results support the hypothesis that cognitive achievement is improved by a cooperative learning mining simulation activity. One implication might include adapting and implementing the model in lower division physical geology courses. Another would be to develop similar activities for other lower division, non-majors earth science courses (i.e. environmental geology, astronomy, meteorology, oceanography, etc.) that could improve students' subject matter knowledge. Additionally, the research supports shifting the locus of control from the instructor to students as well as the use of the principles of active learning, cooperative learning, and confluent education in the science classroom.
Materials sciences programs: Fiscal year 1994
NASA Astrophysics Data System (ADS)
1995-04-01
The Division of Materials Sciences is located within the DOE in the Office of Basic Energy Sciences. The Division of Materials Sciences is responsible for basic research and research facilities in strategic materials science topics of critical importance to the mission of the Department and its Strategic Plan. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship amongst the synthesis, processing, structure, properties, behavior, performance and other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences sub-fields include physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 458 research programs including 216 at 14 DOE National Laboratories, 242 research grants (233 for universities), and 9 Small Business Innovation Research (SBIR) Grants. The report is divided into eight sections. Section A contains all Laboratory projects, Section B has all contract research projects, Section C has projects funded under the SBIR Program, Section D describes the Center of Excellence for the Synthesis and Processing of Advanced Materials and E has information on major user facilities. F contains descriptions of other user facilities; G, a summary of funding levels; and H, indices characterizing research projects.
Materials sciences programs, fiscal year 1994
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
1995-04-01
The Division of Materials Sciences is located within the DOE in the Office of Basic Energy Sciences. The Division of Materials Sciences is responsible for basic research and research facilities in strategic materials science topics of critical importance to the mission of the Department and its Strategic Plan. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship amongst the synthesis, processing, structure, properties, behavior, performance andmore » other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences sub-fields include physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 458 research programs including 216 at 14 DOE National Laboratories, 242 research grants (233 for universities), and 9 Small Business Innovation Research (SBIR) Grants. The report is divided into eight sections. Section A contains all Laboratory projects, Section B has all contract research projects, Section C has projects funded under the SBIR Program, Section D describes the Center of Excellence for the Synthesis and Processing of Advanced Materials and E has information on major user facilities. F contains descriptions of other user facilities; G, a summary of funding levels; and H, indices characterizing research projects.« less
The Effect of Modeling and Visualization Resources on Student Understanding of Physical Hydrology
ERIC Educational Resources Information Center
Marshall, Jilll A.; Castillo, Adam J.; Cardenas, M. Bayani
2015-01-01
We investigated the effect of modeling and visualization resources on upper-division, undergraduate and graduate students' performance on an open-ended assessment of their understanding of physical hydrology. The students were enrolled in one of five sections of a physical hydrology course. In two of the sections, students completed homework…
An Evaluation of Student Team Teaching in Sophomore Physics Classes. Final Report.
ERIC Educational Resources Information Center
Thrasher, Paul H.
In the present document the effectiveness of a student team teaching technique is evaluated in comparison with the lecture method. The team teaching technique, previously used for upper division and graduate physics courses, was, for this study, used in a sophomore physics, electricity and magnetism course for engineers, mathematicians, chemists,…
Understanding Introductory Students' Application of Integrals in Physics from Multiple Perspectives
ERIC Educational Resources Information Center
Hu, Dehui
2013-01-01
Calculus is used across many physics topics from introductory to upper-division level college courses. The concepts of differentiation and integration are important tools for solving real world problems. Using calculus or any mathematical tool in physics is much more complex than the straightforward application of the equations and algorithms that…
NASA Astrophysics Data System (ADS)
Skiff, Fred; Davidson, Ronald C.
2013-05-01
Each year, the annual meeting of the APS Division of Plasma Physics (DPP) brings together a broad representation of the many active subfields of plasma physics and enjoys an audience that is equally diverse. The meeting was well attended and largely went as planned despite the interventions of hurricane Sandy which caused the city of Providence to shut-down during the first day of the conference. The meeting began on Monday morning with a review of the physics of cosmic rays, 2012 being the 100th year since their discovery, which illustrated the central importance of plasma physics to astrophysical problems. Subsequent reviews covered the importance of tokamak plasma boundaries, progress towards ignition on the National Ignition Facility (NIF), and magnetized plasma turbulence. The Maxwell prize address, by Professor Liu Chen, covered the field of nonlinear Alfvén wave physics. Tutorial lectures were presented on the verification of gyrokinetics, new capabilities in laboratory astrophysics, magnetic flux compression, and tokamak plasma start-up.
The Impact of Injury on Health-Related Quality of Life in College Athletes.
Houston, Megan N; Hoch, Johanna M; Van Lunen, Bonnie L; Hoch, Matthew C
2017-09-01
Health-related quality of life (HRQOL) is a broad term for the impact of injury or illness on physical, psychological, and social health dimensions. Injury has been associated with decreased HRQOL in athletes. However, the influence of injury history, participation status, time since last injury, and injury severity on HRQOL remains unclear. To compare HRQOL in collegiate athletes based on injury history, participation status, time since last injury, and injury severity and to examine relationships between HRQOL outcomes. Cross-sectional. 3 National Collegiate Athletic Association (NCAA) institutions. 467 collegiate athletes (199 males, 268 females; 19.5 ± 1.3 y, 173.9 ± 10.5 cm, 71.9 ± 13.6 kg) were recruited from NCAA Division I (n = 299) and Division III (n = 168) institutions. Athletes were included regardless of participation status, which created a diverse sample of current and past injury histories. During a single session, participants completed an injury history form, the Disablement in the Physically Active Scale (DPA), and the Fear-Avoidance Beliefs Questionnaire (FABQ). Dependent variables included DPA-Physical Summary Component (DPA-PSC), DPA-Mental Summary Component (DPA-MSC), and FABQ Scores. HRQOL differences were detected between groups based on injury history, participation status, and time since last injury. No differences were detected for injury severity. A moderate correlation was identified between the DPA-PSC and FABQ (r s = 0.503, P < .001) and a weak relationship was identified between the DPA-MSC and FABQ (r s = 0.266, P < .001). Injury negatively influenced HRQOL in athletes with a current injury. While those individuals participating injured reported better HRQOL than the athletes sidelined due to injury, deficits were still present and should be monitored to ensure a complete recovery. Identifying the patient's perception of impairment will help facilitate evidencebased treatment and rehabilitation strategies that target the physical and psychosocial aspects of health.
Website for the Space Science Division
NASA Technical Reports Server (NTRS)
Schilling, James; DeVincenzi, Donald (Technical Monitor)
2002-01-01
The Space Science Division at NASA Ames Research Center is dedicated to research in astrophysics, exobiology, advanced life support technologies, and planetary science. These research programs are structured around Astrobiology (the study of life in the universe and the chemical and physical forces and adaptions that influence life's origin, evolution, and destiny), and address some of the most fundamental questions pursued by science. These questions examine the origin of life and our place in the universe. Ames is recognized as a world leader in Astrobiology. In pursuing our mission in Astrobiology, Space Science Division scientists perform pioneering basic research and technology development.
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2012 SARA Students Technical Report
DOE Office of Scientific and Technical Information (OSTI.GOV)
Briccetti, Angelo; Lorei, Nathan; Yonkings, David
The Service Academy Research Associates (SARA) program provides an opportunity for Midshipmen and Cadets from US Service Academies to participate in research at Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratory for several weeks during the summer as part of their summer training assignments. During the summer of 2012, three Midshipmen were assigned to work with the XCP Division at LANL for approximately 5-6 weeks. As one of the nation's top national security science laboratories, LANL stretches across 36 square miles, has over 2,100 facilities, and employs over 9,000 individuals including a significant numbermore » of students and postdocs. LANL's mission is to 'apply science and technology to: ensure the safety, security, and reliability of the US nuclear deterrent, reduce global threats, and solve other emerging national security challenges.' While LANL officially operates under the US Department of Energy (DoE), fulfilling this mission requires mutual cooperation with the US Department of Defense (DoD) as well. LANL's high concentration of knowledge and experience provides interns a chance to perform research in many disciplines, and its connection with the DoD in both operation and personnel gives SARA students insight to career possibilities both during and after military service. SARA students have plenty of opportunity to enjoy hiking, camping, the Los Alamos YMCA, and many other outdoor activities in New Mexico while staying at the Buffalo Thunder Resort, located 20 miles east of the lab. XCP Division is the Computational Physics division of LANL's Weapons Department. Working with XCP Division requires individuals to be Q cleared by the DoE. This means it is significantly more convenient for SARA students to be assigned to XCP Division than their civilian counterparts as the DoD CNWDI clearance held by SARA students is easily transferred to the lab prior to the students arriving at the start of the summer. SARA students working with XCP Division were given a comprehensive introduction into nuclear engineering and physics, nuclear weapons, and radiation transport and detection via texts and lectures at various classification levels. Students also attended tours of several prominent facilities at LANL including TA-41 Ice House, TA-55 PF-4 plutonium facility, the Nicholas C. Metropolis Center for Modeling and Simulation, also known as the Secure Computing Center (SCC), and the Dual-Axis Radiological Hydro Test (DARHT) facility; in addition, SARA students accompanied by LANL staff traveled to Minot AFB in North Dakota for tours of the 5th Bomb Wing and 91st Missile Wing facilities. Students participated in a week long class on the Monte Carlo N Particle (MCNP) code to supplement their understanding of radiation transport simulations. SARA students were then tasked with using this knowledge to model radiation detectors and use MCNP to compare their models to experimental data and previously accepted models.« less
Integrative Physical and Cognitive Training Development to Better Meet Airman Mission Requirements
2015-07-26
Warfighter Interface Division Applied Neuroscience Branch Wright-Patterson AFB OH 45433 711 HPW/RHCP 11. SPONSOR/MONITOR’S REPORT NUMBER(S...Interface Division) and Erica Johnson (AFRL, Applied Neuroscience Branch) for their contributions in technical development and manuscript editing that...Liston C. Hobson J. Stickgold, R. Cognitive flexibility across the sleep–wake cycle: REM-sleep enhancement of anagram problem solving. Cogn Brain
Hormiga-Sánchez, Claudia M; Alzate-Posada, Martha L; Borrell, Carme; Palència, Laia; Rodríguez-Villamizar, Laura A; Otero-Wandurraga, Johanna A
2016-04-01
Objectives To estimate the prevalence of occupation-, transportation- and leisure-related physical activity, its compliance with recommendations, and to explore its association with demographic and socioeconomic variables in men and women of the Department of Santander (Colombia). Methods The sample consisted of 2421 people between 15 and 64 years of age, participants in the Risk Factors for Chronic Diseases of Santander cross-sectional study, developed in 2010. The Global Physical Activity Questionnaire was used for data collection. Age-adjusted prevalence ratios were calculated and multivariate analysis models were built by sex using robust Poisson regression. Results The prevalence of occupational and leisure physical activity and compliance with recommendations were lower in women. Sexual division of labor and a low socioeconomic level negatively influenced physical activity in women, limiting the possibility of practice of those principally engaged in unpaid work at home. Young or single men and those living in higher socioeconomic areas were more likely to practice physical activity in leisure time and meet recommendations. Conclusion Physical activity surveillance and related public policies should take into account the inequalities between the practice of men and women related to their socioeconomic conditions and the sexual division of labor.
NASA Astrophysics Data System (ADS)
2016-07-01
A scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS), "Black holes: theory and observations," was held in the conference hall of the Lebedev Physical Institute, RAS, on 23 December 2015. The papers collected in this issue were written based on talks given at the session: (1) I D Novikov (Lebedev Physical Institute, Russian Academy of Sciences, Astro Space Center, Moscow; The Niels Bohr International Academy, The Niels Bohr Institute, Copenhagen; National Research Center 'Kurchatov Institute', Moscow) "Black holes, wormholes, and time machines"; (2) A M Cherepashchuk (Lomonosov Moscow State University, Sternberg Astronomical Institute, Moscow) "Observing stellar-mass and supermassive black holes"; (3) N S Kardashev (Lebedev Physical Institute, Russian Academy of Sciences, Astro Space Center, Moscow) "Millimetron space project: a tool for researching black holes and wormholes." Papers written on the basis of oral presentations 1, 2 are published below. • Observing stellar mass and supermassive black holes, A M Cherepashchuk Physics-Uspekhi, 2016, Volume 59, Number 7, Pages 702-712 • Black holes, wormholes, and time machines, I D Novikov Physics-Uspekhi, 2016, Volume 59, Number 7, Pages 713-715
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Coherent Motion of Monolayer Sheets under Confinement and Its Pathological Implications.
Soumya, S S; Gupta, Animesh; Cugno, Andrea; Deseri, Luca; Dayal, Kaushik; Das, Dibyendu; Sen, Shamik; Inamdar, Mandar M
2015-12-01
Coherent angular rotation of epithelial cells is thought to contribute to many vital physiological processes including tissue morphogenesis and glandular formation. However, factors regulating this motion, and the implications of this motion if perturbed, remain incompletely understood. In the current study, we address these questions using a cell-center based model in which cells are polarized, motile, and interact with the neighboring cells via harmonic forces. We demonstrate that, a simple evolution rule in which the polarization of any cell tends to orient with its velocity vector can induce coherent motion in geometrically confined environments. In addition to recapitulating coherent rotational motion observed in experiments, our results also show the presence of radial movements and tissue behavior that can vary between solid-like and fluid-like. We show that the pattern of coherent motion is dictated by the combination of different physical parameters including number density, cell motility, system size, bulk cell stiffness and stiffness of cell-cell adhesions. We further observe that perturbations in the form of cell division can induce a reversal in the direction of motion when cell division occurs synchronously. Moreover, when the confinement is removed, we see that the existing coherent motion leads to cell scattering, with bulk cell stiffness and stiffness of cell-cell contacts dictating the invasion pattern. In summary, our study provides an in-depth understanding of the origin of coherent rotation in confined tissues, and extracts useful insights into the influence of various physical parameters on the pattern of such movements.
Coherent Motion of Monolayer Sheets under Confinement and Its Pathological Implications
Soumya, S S; Gupta, Animesh; Cugno, Andrea; Deseri, Luca; Dayal, Kaushik; Das, Dibyendu; Sen, Shamik; Inamdar, Mandar M.
2015-01-01
Coherent angular rotation of epithelial cells is thought to contribute to many vital physiological processes including tissue morphogenesis and glandular formation. However, factors regulating this motion, and the implications of this motion if perturbed, remain incompletely understood. In the current study, we address these questions using a cell-center based model in which cells are polarized, motile, and interact with the neighboring cells via harmonic forces. We demonstrate that, a simple evolution rule in which the polarization of any cell tends to orient with its velocity vector can induce coherent motion in geometrically confined environments. In addition to recapitulating coherent rotational motion observed in experiments, our results also show the presence of radial movements and tissue behavior that can vary between solid-like and fluid-like. We show that the pattern of coherent motion is dictated by the combination of different physical parameters including number density, cell motility, system size, bulk cell stiffness and stiffness of cell-cell adhesions. We further observe that perturbations in the form of cell division can induce a reversal in the direction of motion when cell division occurs synchronously. Moreover, when the confinement is removed, we see that the existing coherent motion leads to cell scattering, with bulk cell stiffness and stiffness of cell-cell contacts dictating the invasion pattern. In summary, our study provides an in-depth understanding of the origin of coherent rotation in confined tissues, and extracts useful insights into the influence of various physical parameters on the pattern of such movements. PMID:26691341
NASA Astrophysics Data System (ADS)
The Naval Research Laboratory (Washington, D.C.) formed the Space Plasma Branch within its Plasma Physics Division on July 1. Vithal Patel, former Program Director of Magnetospheric Physics, National Science Foundation, also joined NRL on the same date as Associate Superintendent of the Plasma Physics Division. Barret Ripin is head of the newly organized branch. The Space Plasma branch will do basic and applied space plasma research using a multidisciplinary approach. It consolidates traditional rocket and satellite space experiments, space plasma theory and computation, with laboratory space-related experiments. About 40 research scientists, postdoctoral fellows, engineers, and technicians are divided among its five sections. The Theory and Computation sections are led by Joseph Huba and Joel Fedder, the Space Experiments section is led by Paul Rodriguez, and the Pharos Laser Facility and Laser Experiments sections are headed by Charles Manka and Jacob Grun.
Brief, embedded, spontaneous metacognitive talk indicates thinking like a physicist
NASA Astrophysics Data System (ADS)
Sayre, Eleanor C.; Irving, Paul W.
2015-12-01
[This paper is part of the Focused Collection on Upper Division Physics Courses.] Instructors and researchers think "thinking like a physicist" is important for students' professional development. However, precise definitions and observational markers remain elusive. We reinterpret popular beliefs inventories in physics to indicate what physicists think thinking like a physicist entails. Through discourse analysis of upper-division students' speech in natural settings, we show that students may appropriate or resist these elements. We identify a new element in the physicist speech genre: brief, embedded, spontaneous metacognitive talk (BESM talk). BESM talk communicates students' in-the-moment enacted expectations about physics as a technical field and a cultural endeavor. Students use BESM talk to position themselves as physicists or nonphysicists. Students also use BESM talk to communicate their expectations in four ways: understanding, confusion, spotting inconsistencies, and generalized expectations.
TU-CD-303-00: In Memoriam of Warren Sinclair: Physics Applications for New Radiobiology
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
The Medical Physics and Radiation Protection communities lost one of their true pioneers in May, 2014 with the passing of Warren K. Sinclair, Ph.D. He received his Doctorate in Physics at the University of London, U.K. He was a fellow of the Institute of Physics and a Certified Health Physicist. After a number of posts at Hospitals and Universities in the U.K. and New Zealand, he became the Head, Physics Department at the M.D. Anderson Hospital, Houston, TX. He held a number of academic physics positions with the University of Texas, Austin at the main campus and at the Postgraduatemore » School of Medicine, Houston. He later served as a Senior Biophysicist, Division Director, and then Associate Laboratory Director for Biomedical Division Director, and then Associate Laboratory Director for Biomedical and Environmental Research at the Argonne National Laboratory, IL. He had additional academic appointments at the University of California, Berkeley; Northern Illinois University; the University of Illinois (Chicago Circle Campus); and the University of Chicago. Warren was a charter member of the AAPM and a leader in many communities: President of the AAPM from 1960 to 1961 and the Journal Editor from 1964 to 1969, the 2nd President of the NCRP from 1977 to 1991, and the President of the Radiation Research Society from 1978 to 1979. His many awards included the William D. Coolidge Award in 1986. Even this barely scratches the surface of the many other organizations he served with and influenced including the ICRP, IOP, RSNA, SNM, and UNSCEAR. His research interests resulted in publications from 1948 to the 1990s in many aspects (physical and biological) of radiotherapy and the effects of ionizing radiation in general, leading to early definitions of RBE values for megavoltage radiotherapy as well as contributing to the development of the modern framework for radiation protection worldwide. Warren was not a retiring person and even after moving to NCRP President Emeritus status continued to provide advice and comments on publications and to mentor others until the time of his passing. Sadly, Warren’s long-time wife Joy passed away in December, 2014 but he is survived by his son Bruce and daughter Roslyn, 2 grandchildren and 4 great-grandchildren.« less
The Scope & Sequence of Fitness Education for PreK-16 Programs: NASPE Fitness Education Project
ERIC Educational Resources Information Center
National Association for Sport and Physical Education, 2012
2012-01-01
In May 2006, the National Association for Sport and Physical Education (NASPE) received funding from the Centers for Disease Control and Prevention's (CDC) Division of Adolescent and School Health to improve the quality and quantity of physical education and physical activity programs across the United States. The cooperative agreement project…
ERIC Educational Resources Information Center
Cardinal, Bradley J.; And Others
Consistent with the Year 2000 National Health Promotion and Disease Prevention Objectives, this paper presents a proposal for a Wellness Clinician/Research specialization within the existing Master of Education in Physical Education degree program offered by the Division of Health, Physical Education, and Recreation at Wayne State University…
ERIC Educational Resources Information Center
Gambari, Amosa Isiaka; Yusuf, Mudasiru Olalere; Thomas, David Akpa
2015-01-01
This study examined the effectiveness of computer-assisted instruction on Student Team Achievement Division (STAD) and Learning Together (LT) cooperative learning strategies on Nigerian secondary students' achievement and motivation in physics. The effectiveness of computer assisted instructional package (CAI) for teaching physics concepts in…
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Summaries of FY 1982 research in the chemical sciences
DOE Office of Scientific and Technical Information (OSTI.GOV)
None
1982-09-01
The purpose of this booklet is to help those interested in research supported by the Department of Energy's Division of Chemical Sciences, which is one of six Divisions of the Office of Basic Energy Sciences in the Office of Energy Research. These summaries are intended to provide a rapid means for becoming acquainted with the Chemical Sciences program to members of the scientific and technological public and interested persons in the Legislative and Executive Branches of the Government. Areas of research supported by the Division are to be seen in the section headings, the index and the summaries themselves. Energymore » technologies which may be advanced by use of the basic knowledge discovered in this program can be seen in the index and again (by reference) in the summaries. The table of contents lists the following: photochemical and radiation sciences; chemical physics; atomic physics; chemical energy; separation and analysis; chemical engineering sciences; offsite contracts; equipment funds; special facilities; topical index; institutional index for offsite contracts; investigator index.« less
Sethi, Kriti; Palani, Saravanan; Cortés, Juan C. G.; Sato, Mamiko; Sevugan, Mayalagu; Ramos, Mariona; Vijaykumar, Shruthi; Osumi, Masako; Naqvi, Naweed I.; Ribas, Juan Carlos; Balasubramanian, Mohan
2016-01-01
Cytokinesis in many organisms requires a plasma membrane anchored actomyosin ring, whose contraction facilitates cell division. In yeast and fungi, actomyosin ring constriction is also coordinated with division septum assembly. How the actomyosin ring interacts with the plasma membrane and the plasma membrane-localized septum synthesizing machinery remains poorly understood. In Schizosaccharomyces pombe, an attractive model organism to study cytokinesis, the β-1,3-glucan synthase Cps1p / Bgs1p, an integral membrane protein, localizes to the plasma membrane overlying the actomyosin ring and is required for primary septum synthesis. Through a high-dosage suppressor screen we identified an essential gene, sbg1+ (suppressor of beta glucan synthase 1), which suppressed the colony formation defect of Bgs1-defective cps1-191 mutant at higher temperatures. Sbg1p, an integral membrane protein, localizes to the cell ends and to the division site. Sbg1p and Bgs1p physically interact and are dependent on each other to localize to the division site. Loss of Sbg1p results in an unstable actomyosin ring that unravels and slides, leading to an inability to deposit a single contiguous division septum and an important reduction of the β-1,3-glucan proportion in the cell wall, coincident with that observed in the cps1-191 mutant. Sbg1p shows genetic and / or physical interaction with Rga7p, Imp2p, Cdc15p, and Pxl1p, proteins known to be required for actomyosin ring integrity and efficient septum synthesis. This study establishes Sbg1p as a key member of a group of proteins that link the plasma membrane, the actomyosin ring, and the division septum assembly machinery in fission yeast. PMID:27749909
Sethi, Kriti; Palani, Saravanan; Cortés, Juan C G; Sato, Mamiko; Sevugan, Mayalagu; Ramos, Mariona; Vijaykumar, Shruthi; Osumi, Masako; Naqvi, Naweed I; Ribas, Juan Carlos; Balasubramanian, Mohan
2016-10-01
Cytokinesis in many organisms requires a plasma membrane anchored actomyosin ring, whose contraction facilitates cell division. In yeast and fungi, actomyosin ring constriction is also coordinated with division septum assembly. How the actomyosin ring interacts with the plasma membrane and the plasma membrane-localized septum synthesizing machinery remains poorly understood. In Schizosaccharomyces pombe, an attractive model organism to study cytokinesis, the β-1,3-glucan synthase Cps1p / Bgs1p, an integral membrane protein, localizes to the plasma membrane overlying the actomyosin ring and is required for primary septum synthesis. Through a high-dosage suppressor screen we identified an essential gene, sbg1+ (suppressor of beta glucan synthase 1), which suppressed the colony formation defect of Bgs1-defective cps1-191 mutant at higher temperatures. Sbg1p, an integral membrane protein, localizes to the cell ends and to the division site. Sbg1p and Bgs1p physically interact and are dependent on each other to localize to the division site. Loss of Sbg1p results in an unstable actomyosin ring that unravels and slides, leading to an inability to deposit a single contiguous division septum and an important reduction of the β-1,3-glucan proportion in the cell wall, coincident with that observed in the cps1-191 mutant. Sbg1p shows genetic and / or physical interaction with Rga7p, Imp2p, Cdc15p, and Pxl1p, proteins known to be required for actomyosin ring integrity and efficient septum synthesis. This study establishes Sbg1p as a key member of a group of proteins that link the plasma membrane, the actomyosin ring, and the division septum assembly machinery in fission yeast.
Cell Division and Evolution of Biological Tissues
NASA Astrophysics Data System (ADS)
Rivier, Nicolas; Arcenegui-Siemens, Xavier; Schliecker, Gudrun
A tissue is a geometrical, space-filling, random cellular network; it remains in this steady state while individual cells divide. Cell division (fragmentation) is a local, elementary topological transformation which establishes statistical equilibrium of the structure. Statistical equilibrium is characterized by observable relations (Lewis, Aboav) between cell shapes, sizes and those of their neighbours, obtained through maximum entropy and topological correlation extending to nearest neighbours only, i.e. maximal randomness. For a two-dimensional tissue (epithelium), the distribution of cell shapes and that of mother and daughter cells can be obtained from elementary geometrical and physical arguments, except for an exponential factor favouring division of larger cells, and exponential and combinatorial factors encouraging a most symmetric division. The resulting distributions are very narrow, and stationarity severely restricts the range of an adjustable structural parameter
Somatotype analysis of elite boxing athletes compared with nonathletes for sports physiotherapy.
Noh, Ji-Woong; Kim, Ju-Hyun; Kim, Mee-Young; Lee, Jeong-Uk; Lee, Lim-Kyu; Park, Byoung-Sun; Yang, Seung-Min; Jeon, Hye-Joo; Lee, Won-Deok; Kwak, Taek-Yong; Jang, Sung-Ho; Lee, Tae-Hyun; Kim, Ju-Young; Kim, Junghwan
2014-08-01
[Purpose] The purpose of this study was to show somatotype and physical characteristic differences between elite boxing athletes and non-athletes. [Methods] The somatotypes of 23 elite boxing athletes and 23 nonathletes were measured with the Heath-Carter method. The subjects were divided into four weight divisions as follows: lightweight, light middleweight, middleweight, and heavyweight class. [Results] The endomorphic component values of the boxing athletes were lower than those of the nonathletes. However, the mesomorphic component values of the boxing athletes were higher than those of the nonathletes. There was no significant difference in the ectomorphic component between the two groups. The higher weight divisions tended to have higher values of height, weight, and BMI than the lower weight divisions. The higher weight divisions also tended to have higher values for the endomorphic and mesomorphic components and a lower value for the ectomorphic component than the lower weight divisions. The group of nonathletes consisted of eight endomorphs, four mesomorphs, six ectomorphs, and five central types. Among the boxing athletes, there were 16 mesomorphic, four ectomorphic, and two central types and one endomorphic type. Subdividing the athletes into 13 somatotypes resulted in five balanced mesomorphs, five endomorphic mesomorphs, five mesomorph-ectomorphs, three mesomorph-endomorphs, two mesomorphic ectomorphs, two central types, and one ectomorphic mesomorph type. [Conclusion] The data from this study provides in part physical characteristics of elite boxing athletes that can be used to establish a reference for systemic study of sports physiotherapy.
Somatotype Analysis of Elite Boxing Athletes Compared with Nonathletes for Sports Physiotherapy
Noh, Ji-Woong; Kim, Ju-Hyun; Kim, Mee-Young; Lee, Jeong-Uk; Lee, Lim-Kyu; Park, Byoung-Sun; Yang, Seung-Min; Jeon, Hye-Joo; Lee, Won-Deok; Kwak, Taek-Yong; Jang, Sung-Ho; Lee, Tae-Hyun; Kim, Ju-Young; Kim, Junghwan
2014-01-01
[Purpose] The purpose of this study was to show somatotype and physical characteristic differences between elite boxing athletes and non-athletes. [Methods] The somatotypes of 23 elite boxing athletes and 23 nonathletes were measured with the Heath-Carter method. The subjects were divided into four weight divisions as follows: lightweight, light middleweight, middleweight, and heavyweight class. [Results] The endomorphic component values of the boxing athletes were lower than those of the nonathletes. However, the mesomorphic component values of the boxing athletes were higher than those of the nonathletes. There was no significant difference in the ectomorphic component between the two groups. The higher weight divisions tended to have higher values of height, weight, and BMI than the lower weight divisions. The higher weight divisions also tended to have higher values for the endomorphic and mesomorphic components and a lower value for the ectomorphic component than the lower weight divisions. The group of nonathletes consisted of eight endomorphs, four mesomorphs, six ectomorphs, and five central types. Among the boxing athletes, there were 16 mesomorphic, four ectomorphic, and two central types and one endomorphic type. Subdividing the athletes into 13 somatotypes resulted in five balanced mesomorphs, five endomorphic mesomorphs, five mesomorph-ectomorphs, three mesomorph-endomorphs, two mesomorphic ectomorphs, two central types, and one ectomorphic mesomorph type. [Conclusion] The data from this study provides in part physical characteristics of elite boxing athletes that can be used to establish a reference for systemic study of sports physiotherapy. PMID:25202187
The Virtual Solar Observatory and the Heliophysics Meta-Virtual Observatory
NASA Technical Reports Server (NTRS)
Gurman, Joseph B.
2007-01-01
The Virtual Solar Observatory (VSO) is now able to search for solar data ranging from the radio to gamma rays, obtained from space and groundbased observatories, from 26 sources at 12 data providers, and from 1915 to the present. The solar physics community can use a Web interface or an Application Programming Interface (API) that allows integrating VSO searches into other software, including other Web services. Over the next few years, this integration will be especially obvious as the NASA Heliophysics division sponsors the development of a heliophysics-wide virtual observatory (VO), based on existing VO's in heliospheric, magnetospheric, and ionospheric physics as well as the VSO. We examine some of the challenges and potential of such a "meta-VO."
Students' views about the nature of experimental physics
NASA Astrophysics Data System (ADS)
Wilcox, Bethany
2017-04-01
The physics community explores and explains the physical world through a blend of theoretical and experimental studies. The future of physics as a discipline depends on training of students in both the theoretical and experimental aspects of the field. However, while student learning within lecture courses has been the subject of extensive research, lab courses remain relatively under-studied. In particular, there is little, if any, data available that addresses the effectiveness of physics lab courses at encouraging students to recognize the nature and importance of experimental physics within the discipline as a whole. To address this gap, we present the first large-scale, national study (Ninstitutions = 71 and Nstudents = 7167) of undergraduate physics lab courses through analysis of students' responses to a research-validated assessment designed to investigate students' beliefs about the nature of experimental physics. We find that students often enter and leave physics lab courses with ideas about experimental physics that are inconsistent with the views of practicing experimental physicists, and this trend holds at both the introductory and upper-division levels. Despite this inconsistency, we find that both introductory and upper-division students are able to accurately predict the expert-like response even in cases where their personal views disagree. These finding have implications for the recruitment, retention, and adequate preparation of students in physics. This work was funded by the NSF-IUSE Grant No. DUE-1432204 and NSF Grant No. PHY-1125844.
Students' views about the nature of experimental physics
NASA Astrophysics Data System (ADS)
Wilcox, Bethany R.; Lewandowski, H. J.
2017-12-01
The physics community explores and explains the physical world through a blend of theoretical and experimental studies. The future of physics as a discipline depends on training of students in both the theoretical and experimental aspects of the field. However, while student learning within lecture courses has been the subject of extensive research, lab courses remain relatively under-studied. In particular, there is little, if any, data available that address the effectiveness of physics lab courses at encouraging students to recognize the nature and importance of experimental physics within the discipline as a whole. To address this gap, we present the first large-scale, national study (Ninstitutions=75 and Nstudents=7167 ) of undergraduate physics lab courses through analysis of students' responses to a research-validated assessment designed to investigate students' beliefs about the nature of experimental physics. We find that students often enter and leave physics lab courses with ideas about experimental physics as practiced in their courses that are inconsistent with the views of practicing experimental physicists, and this trend holds at both the introductory and upper-division levels. Despite this inconsistency, we find that both introductory and upper-division students are able to accurately predict the expertlike response even in cases where their views about experimentation in their lab courses disagree. These finding have implications for the recruitment, retention, and adequate preparation of students in physics.
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Model-Based Reasoning in Upper-division Lab Courses
NASA Astrophysics Data System (ADS)
Lewandowski, Heather
2015-05-01
Modeling, which includes developing, testing, and refining models, is a central activity in physics. Well-known examples from AMO physics include everything from the Bohr model of the hydrogen atom to the Bose-Hubbard model of interacting bosons in a lattice. Modeling, while typically considered a theoretical activity, is most fully represented in the laboratory where measurements of real phenomena intersect with theoretical models, leading to refinement of models and experimental apparatus. However, experimental physicists use models in complex ways and the process is often not made explicit in physics laboratory courses. We have developed a framework to describe the modeling process in physics laboratory activities. The framework attempts to abstract and simplify the complex modeling process undertaken by expert experimentalists. The framework can be applied to understand typical processes such the modeling of the measurement tools, modeling ``black boxes,'' and signal processing. We demonstrate that the framework captures several important features of model-based reasoning in a way that can reveal common student difficulties in the lab and guide the development of curricula that emphasize modeling in the laboratory. We also use the framework to examine troubleshooting in the lab and guide students to effective methods and strategies.
ERIC Educational Resources Information Center
Pfundt, Helga
The hypothesis as to the atomic structure of any given substance is introduced in many physics and chemistry textbooks by conveying the idea of repetitive division of a given amount of substance, for example, by grinding, dissolving, or evaporating. The rationale for this approach is the assumption of students inferring that this process of…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
In 1988 the Atmospheric and Geophysical Sciences Division began its 15th year as a division. As the Division has grown over the years, its modeling capabilities have expanded to include a broad range of time and space scales ranging from hours to years, and from kilometers to global, respectively. For this report, we have chosen to show a subset of results from several projects to illustrate the breadth, depth, and diversity of the modeling activities that are a major part of the Division's research, development, and application efforts. In addition, the recent reorganization of the Division, including the merger ofmore » another group with the Division, is described, and the budget, personnel, models, and publications are reviewed. 95 refs., 26 figs., 2 tabs.« less
NASA Astrophysics Data System (ADS)
Nordal Petersen, Martin; Nuijts, Roeland; Lange Bjørn, Lars
2014-05-01
This article presents an advanced optical model for simulation of alien wavelengths in multi-domain and multi-vendor dense wavelength-division multiplexing networks. The model aids optical network planners with a better understanding of the non-linear effects present in dense wavelength-division multiplexing systems and better utilization of alien wavelengths in future applications. The limiting physical effects for alien wavelengths are investigated in relation to power levels, channel spacing, and other factors. The simulation results are verified through experimental setup in live multi-domain dense wavelength-division multiplexing systems between two national research networks: SURFnet in Holland and NORDUnet in Denmark.
Computer Model of the Empirical Knowledge of Physics Formation: Coordination with Testing Results
ERIC Educational Resources Information Center
Mayer, Robert V.
2016-01-01
The use of method of imitational modeling to study forming the empirical knowledge in pupil's consciousness is discussed. The offered model is based on division of the physical facts into three categories: 1) the facts established in everyday life; 2) the facts, which the pupil can experimentally establish at a physics lesson; 3) the facts which…
Physical Science Rocks! Outreach for Elementary Students
ERIC Educational Resources Information Center
McKone, Kevin
2010-01-01
Students at Copiah-Lincoln Community College (Co-Lin) have been hesitant to take courses in the physical sciences, mostly because of a lack of exposure to them in K-12 or a bad experience in this area. The college is addressing this need by exposing students to the physical sciences early on in their education. The science division at Co-Lin has…
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Chinese-English Nuclear and Physics Dictionary.
ERIC Educational Resources Information Center
Air Force Systems Command, Wright-Patterson AFB, OH. Foreign Technology Div.
The Nuclear and Physics Dictionary is one of a series of Chinese-English technical dictionaries prepared by the Foreign Technology Division, United States Air Force Systems Command. The purpose of this dictionary is to provide rapid reference tools for translators, abstractors, and research analysts concerned with scientific and technical…
Health and Safety Research Division progress report, April 1, 1981-September 30, 1982
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1983-02-01
Research progress for the reporting period is briefly summarized for the following sections: (1) health studies, (2) technology assessments, (3) biological and radiation physics, (4) chemical physics, (5) Office of Risk Analysis, and (6) health and environmental risk and analysis. (ACR)
Sell, Timothy C; Abt, John P; Crawford, Kim; Lovalekar, Mita; Nagai, Takashi; Deluzio, Jennifer B; Smalley, Brain W; McGrail, Mark A; Rowe, Russell S; Cardin, Sylvain; Lephart, Scott M
2010-01-01
Physical training for United States military personnel requires a combination of injury prevention and performance optimization to counter unintentional musculoskeletal injuries and maximize warrior capabilities. Determining the most effective activities and tasks to meet these goals requires a systematic, research-based approach that is population specific based on the tasks and demands of the Warrior. The authors have modified the traditional approach to injury prevention to implement a comprehensive injury prevention and performance optimization research program with the 101st Airborne Division (Air Assault) at Fort Campbell, KY. This is second of two companion papers and presents the last three steps of the research model and includes Design and Validation of the Interventions, Program Integration and Implementation, and Monitor and Determine the Effectiveness of the Program. An 8-week trial was performed to validate the Eagle Tactical Athlete Program (ETAP) to improve modifiable suboptimal characteristics identified in Part I. The experimental group participated in ETAP under the direction of a ETAP Strength and Conditioning Specialist while the control group performed the current physical training at Fort Campbell under the direction of a Physical Training Leader and as governed by FM 21-20 for the 8-week study period. Soldiers performing ETAP demonstrated improvements in several tests for strength, flexibility, performance, physiology, and the APFT compared to current physical training performed at Fort Campbell. ETAP was proven valid to improve certain suboptimal characteristics within the 8-week trial as compared to the current training performed at Fort Campbell. ETAP has long-term implications and with expected greater improvements when implemented into a Division pre-deployment cycle of 10-12 months which will result in further systemic adaptations for each variable.
Computational Fluid Dynamics Symposium on Aeropropulsion
NASA Technical Reports Server (NTRS)
1991-01-01
Recognizing the considerable advances that have been made in computational fluid dynamics, the Internal Fluid Mechanics Division of NASA Lewis Research Center sponsored this symposium with the objective of providing a forum for exchanging information regarding recent developments in numerical methods, physical and chemical modeling, and applications. This conference publication is a compilation of 4 invited and 34 contributed papers presented in six sessions: algorithms one and two, turbomachinery, turbulence, components application, and combustors. Topics include numerical methods, grid generation, chemically reacting flows, turbulence modeling, inlets, nozzles, and unsteady flows.
International interface design for Space Station Freedom - Challenges and solutions
NASA Technical Reports Server (NTRS)
Mayo, Richard E.; Bolton, Gordon R.; Laurini, Daniele
1988-01-01
The definition of interfaces for the International Space Station is discussed, with a focus on negotiations between NASA and ESA. The program organization and division of responsibilities for the Space Station are outlined; the basic features of physical and functional interfaces are described; and particular attention is given to the interface management and documentation procedures, architectural control elements, interface implementation and verification, and examples of Columbus interface solutions (including mechanical, ECLSS, thermal-control, electrical, data-management, standardized user, and software interfaces). Diagrams, drawings, graphs, and tables listing interface types are provided.
An interdisciplinary teaching program in geriatrics for physician's assistants.
Stark, R; Yeo, G; Fordyce, M; Grudzen, M; Hopkins, J; McGann, L; Shepard, K
1984-11-01
An interdisciplinary curriculum committee within the Division of Family Medicine, Stanford University Medical Center, developed and taught a beginning course in clinical geriatrics for medical students and student physician's assistants, physical therapists, and nurse practitioners. Through a series of Saturday classes held in community facilities serving seniors, physician's assistant students had the opportunity to learn clinical geriatrics from a faculty team including a physician's assistant, physician, nurse, physical therapist, social worker, gerontologist, and health educator. Local seniors served as consumer consultants and models of health and vigor. This interdisciplinary approach was modeled by the faculty to demonstrate the need for a team approach to deliver quality care to seniors. In this well-received course, the role of the physician's assistant in health care was made evident to their future physician employers and physical therapy co-workers through faculty modeling as well as through informal contacts and patient conferences. Older people constitute a growing and increasingly medically underserved population. Team training may serve to stimulate physician's assistant students to include geriatrics in their career plans while educating their future physician employers about their role.
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Solid State Division progress report for period ending March 31, 1997
DOE Office of Scientific and Technical Information (OSTI.GOV)
Green, P.H.; Hinton, L.W.
1997-12-01
This report covers research progress in the Solid State Division from April 1, 1995, through March 31, 1997. During this period, the division conducted a broad, interdisciplinary materials research program in support of Department of Energy science and technology missions. The report includes brief summaries of research activities in condensed matter theory, neutron scattering, synthesis and characterization of materials, ion beam and laser processing, and the structure of solids and surfaces. An addendum includes listings of division publications and professional activities.
Grinenko, Tatyana; Eugster, Anne; Thielecke, Lars; Ramasz, Beáta; Krüger, Anja; Dietz, Sevina; Glauche, Ingmar; Gerbaulet, Alexander; von Bonin, Malte; Basak, Onur; Clevers, Hans; Chavakis, Triantafyllos; Wielockx, Ben
2018-05-15
Hematopoietic stem cells (HSCs) continuously replenish all blood cell types through a series of differentiation steps and repeated cell divisions that involve the generation of lineage-committed progenitors. However, whether cell division in HSCs precedes differentiation is unclear. To this end, we used an HSC cell-tracing approach and Ki67 RFP knock-in mice, in a non-conditioned transplantation model, to assess divisional history, cell cycle progression, and differentiation of adult HSCs. Our results reveal that HSCs are able to differentiate into restricted progenitors, especially common myeloid, megakaryocyte-erythroid and pre-megakaryocyte progenitors, without undergoing cell division and even before entering the S phase of the cell cycle. Additionally, the phenotype of the undivided but differentiated progenitors correlated with the expression of lineage-specific genes and loss of multipotency. Thus HSC fate decisions can be uncoupled from physical cell division. These results facilitate a better understanding of the mechanisms that control fate decisions in hematopoietic cells.
Asymmetric cell division requires specific mechanisms for adjusting global transcription.
Mena, Adriana; Medina, Daniel A; García-Martínez, José; Begley, Victoria; Singh, Abhyudai; Chávez, Sebastián; Muñoz-Centeno, Mari C; Pérez-Ortín, José E
2017-12-01
Most cells divide symmetrically into two approximately identical cells. There are many examples, however, of asymmetric cell division that can generate sibling cell size differences. Whereas physical asymmetric division mechanisms and cell fate consequences have been investigated, the specific problem caused by asymmetric division at the transcription level has not yet been addressed. In symmetrically dividing cells the nascent transcription rate increases in parallel to cell volume to compensate it by keeping the actual mRNA synthesis rate constant. This cannot apply to the yeast Saccharomyces cerevisiae, where this mechanism would provoke a never-ending increasing mRNA synthesis rate in smaller daughter cells. We show here that, contrarily to other eukaryotes with symmetric division, budding yeast keeps the nascent transcription rates of its RNA polymerases constant and increases mRNA stability. This control on RNA pol II-dependent transcription rate is obtained by controlling the cellular concentration of this enzyme. © The Author(s) 2017. Published by Oxford University Press on behalf of Nucleic Acids Research.
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DOE Office of Scientific and Technical Information (OSTI.GOV)
Kippen, Karen Elizabeth
This is the December 2016 issue of Physics Flash, the newsletter of the Physics Division of Los Alamos National Laboratory (LANL). In this issue, the following topics are covered: Novel liquid helium technique to aid highly sensitive search for a neutron electrical dipole moment; Silverleaf: Prototype Red Sage experiments performed at Q-site; John L. Kline named 2016 APS Fellow; Physics students in the news; First Entropy Engine quantum random number generator hits the market; and celebrating service.
NASA Astrophysics Data System (ADS)
2011-07-01
The scientific session "Econophysics and evolutionary economics" of the Division of Physical Sciences of the Russian Academy of Sciences (RAS) took place on 2 November 2010 in the conference hall of the Lebedev Physical Institute, Russian Academy of Sciences. The session agenda announced on the website www.gpad.ac.ru of the RAS Physical Sciences Division listed the following reports: (1) Maevsky V I (Institute of Economics, RAS, Moscow) "The transition from simple reproduction to economic growth"; (2) Yudanov A Yu (Financial University of the Government of the Russian Federation, Moscow) "Experimental data on the development of fast-growing innovative companies in Russia"; (3) Pospelov I G (Dorodnitsyn Computation Center, RAS, Moscow) "Why is it sometimes possible to successfully model an economy? (4) Chernyavskii D S (Lebedev Physical Institute, RAS, Moscow) "Theoretical economics"; (5) Romanovskii M Yu (Prokhorov Institute of General Physics, RAS, Moscow) "Nonclassical random walks and the phenomenology of fluctuations of the yield of securities in the securities market"; (6) Dubovikov M M, Starchenko N V (INTRAST Management Company, Moscow Engineering Physics Institute, Moscow) "Fractal analysis of financial time series and the prediction problem"; Papers written on the basis of these reports are published below. • The transition from simple reproduction to economic growth, V I Maevsky, S Yu Malkov Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 729-733 • High-growth firms in Russia: experimental data and prospects for the econophysical simulation of economic modernization, A Yu Yudanov Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 733-737 • Equilibrium models of economics in the period of a global financial crisis, I G Pospelov Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 738-742 • On econophysics and its place in modern theoretical economics, D S Chernavskii, N I Starkov, S Yu Malkov, Yu V Kosse, A V Shcherbakov Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 742-749 • Nonclassical random walks and the phenomenology of fluctuations of securities returns in the stock market, P V Vidov, M Yu Romanovsky Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 749-753 • Econophysics and the fractal analysis of financial time series, M M Dubovikov, N V Starchenko Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 754-761
A New Simulation Framework for the Electron-Ion Collider
NASA Astrophysics Data System (ADS)
Arrington, John
2017-09-01
Last year, a collaboration between Physics Division and High-Energy Physics at Argonne was formed to enable significantly broader contributions to the development of the Electron-Ion Collider. This includes efforts in accelerator R&D, theory, simulations, and detector R&D. I will give a brief overview of the status of these efforts, with emphasis on the aspects aimed at enabling the community to more easily become involved in evaluation of physics, detectors, and details of spectrometer designs. We have put together a new, easy-to-use simulation framework using flexible software tools. The goal is to enable detailed simulations to evaluate detector performance and compare detector designs. In addition, a common framework capable of providing detailed simulations of different spectrometer designs will allow for fully consistent evaluations of the physics reach of different spectrometer designs or detector systems for a variety of physics channels. In addition, new theory efforts will provide self-consistent models of GPDs (including QCD evolution) and TMDs in nucleons and light nuclei, as well as providing more detailed physics input for the evaluation of some new observables. This material is based upon work supported by Laboratory Directed Research and Development (LDRD) funding from Argonne National Laboratory, provided by the Director, Office of Science, of the U.S. Department of Energy under Contract DE-AC02-06CH11357.
NASA Astrophysics Data System (ADS)
2015-09-01
A scientific session of the Physical Sciences Division of the Russian Academy of Sciences dedicated to the 100th anniversary of the birth of Academician E M Lifshitz was held in the conference hall of the institute of Physical Problems, RAS, on 26 March 2015. The agenda of the session announced on the website www.gpad.ac.ru of the PSD RAS contains the reports: (1) Khalatnikov I M (Landau Institute for Theoretical Physics, RAS, Moscow) "Problem of singularity in cosmology"; (2) Kats E I (Landau Institute for Theoretical Physics, RAS, Moscow) "Van der Waals, Casimir, and Lifshitz forces in soft matter"; (3) Volovik G E (Landau Institute for Theoretical Physics, RAS, Moscow) "Superfluids in rotation: Onsager-Feynman vortices and Landau-Lifshitz vortex sheets." Papers written on the basis of oral presentations 1-3 are published below. • Stochastic cosmology, perturbation theories, and Lifshitz gravity, I M Khalatnikov, A Yu Kamenshchik Physics-Uspekhi, 2015, Volume 58, Number 9, Pages 878-891 • Van der Waals, Casimir, and Lifshitz forces in soft matter, E I Kats Physics-Uspekhi, 2015, Volume 58, Number 9, Pages 892-896 • Superfluids in rotation: Landau-Lifshitz vortex sheets vs Onsager-Feynman vortices, G E Volovik Physics-Uspekhi, 2015, Volume 58, Number 9, Pages 897-905
PREFACE: X Workshop of the Gravitation and Mathematical Physics Division, Mexican Physical Society
NASA Astrophysics Data System (ADS)
2014-11-01
The collection of papers in this volume was presented during the X Workshop of the Gravitation and Mathematical Physics Division of the Mexican Physical Society (DGFM-SMF), which was held in Pachuca, Hidalgo, México, December 2-6, 2013. The Workshop is a bi-annual series of conferences sponsored by the DGFM-SMF that started in 1993 with the purposes of discussing and exchanging the research and experience of the gravitational and mathematical physics communities in Mexico. Each Mexican Workshop has been devoted to subjects of broad interest, so that students, in particular, can have access to specialized courses and talks that allow them to raise up their qualifications as professional researchers. Recurrent topics in the Mexican Workshop are supergravity, branes, black holes, the early Universe, observational cosmology, quantum gravity and cosmology and numerical relativity. Following our previous Workshops, distinguished researchers in the field, working in Mexico, were invited to give courses, whereas young researchers were invited for plenary lectures. More specialized talks were also presented in parallel sessions, with ample participation of researchers, and graduate and undergraduate students; most of the presentations have been included in these proceedings. The contributions in this volume have been peer-reviewed, and they represent most of the courses, plenary talks and contributed talks presented during our Workshop. We are indebted to the contributors of these proceedings, as well as to the other participants and organizers, all for making the event a complete success. We acknowledge the professionalism of our reviewers, who helped us to keep high quality standards in all manuscripts. Acknowledgments The organizing committee would like to acknowledge the financial support of the Mexican National Science and Technology Council (CONACyT), the Mexican Physical Society (SMF), as well as several Institutions including: Centro de Investigación y Estudios Avanzados (CINVESTAV), Universidad Autónoma Metropolitana Iztapalapa (UAM-I), Universidad de Guanajuato (UG), Universidad Nacional Autónoma de México (UNAM). We especially acknowledge the support and the kind hospitality of our host, the Universidad Autónoma del Estado de Hidalgo. Ricardo Becerril Bárcenas, Héctor H. Hernández Hernández, Miguel Sabido, Carlos A. Soto, Luis Alberto López, Omar Pedraza, Victoria E. Cerón. Editors
TU-CD-303-01: Memorial to Warren Sinclair - Memorial Lecturer
DOE Office of Scientific and Technical Information (OSTI.GOV)
Grissom, M
The Medical Physics and Radiation Protection communities lost one of their true pioneers in May, 2014 with the passing of Warren K. Sinclair, Ph.D. He received his Doctorate in Physics at the University of London, U.K. He was a fellow of the Institute of Physics and a Certified Health Physicist. After a number of posts at Hospitals and Universities in the U.K. and New Zealand, he became the Head, Physics Department at the M.D. Anderson Hospital, Houston, TX. He held a number of academic physics positions with the University of Texas, Austin at the main campus and at the Postgraduatemore » School of Medicine, Houston. He later served as a Senior Biophysicist, Division Director, and then Associate Laboratory Director for Biomedical Division Director, and then Associate Laboratory Director for Biomedical and Environmental Research at the Argonne National Laboratory, IL. He had additional academic appointments at the University of California, Berkeley; Northern Illinois University; the University of Illinois (Chicago Circle Campus); and the University of Chicago. Warren was a charter member of the AAPM and a leader in many communities: President of the AAPM from 1960 to 1961 and the Journal Editor from 1964 to 1969, the 2nd President of the NCRP from 1977 to 1991, and the President of the Radiation Research Society from 1978 to 1979. His many awards included the William D. Coolidge Award in 1986. Even this barely scratches the surface of the many other organizations he served with and influenced including the ICRP, IOP, RSNA, SNM, and UNSCEAR. His research interests resulted in publications from 1948 to the 1990s in many aspects (physical and biological) of radiotherapy and the effects of ionizing radiation in general, leading to early definitions of RBE values for megavoltage radiotherapy as well as contributing to the development of the modern framework for radiation protection worldwide. Warren was not a retiring person and even after moving to NCRP President Emeritus status continued to provide advice and comments on publications and to mentor others until the time of his passing. Sadly, Warren’s long-time wife Joy passed away in December, 2014 but he is survived by his son Bruce and daughter Roslyn, 2 grandchildren and 4 great-grandchildren.« less
A Computerized Bibliographic Service for the Blind and Physically Handicapped
ERIC Educational Resources Information Center
Friedman, Morton H.
1975-01-01
Describes a three-year plan and a system study designed to produce a computerized union catalog and an in-process file for both the Library of Congress Division for the Blind and Physically Handicapped and a network of almost 200 libraries throughout the nation. (Author/PF)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1979-01-01
Research on the chemical physics of atoms and molecules, especially their interaction with external agents such as photons and electrons is reported. Abstracts of seven individual items from the report were prepared separately for the data base. (GHT)
Selected Tennis and Badminton Articles. Sports Articles Reprint Series. Third Edition.
ERIC Educational Resources Information Center
Tyler, Jo Ann, Ed.
Presented is a collection of articles from "The Division for Girls and Women's Sports (DGWS) Guides 1964-1970,""Research Quarterly 1962-1969," and "Journal of Health, Physical Education, and Recreation, 1962-1969." It is the latest in the American Association for Health, Physical Education, and Recreation…
Intern Programs | Undergraduate Lecture Series
Tuesday June 12 One West Harrison Prosper Florida State University Particle physics Thursday June 14 One Facilities Ops Mechanical Engineering of accelerators Thursday June 21 One West Anne Schukraft Fermilab Neutrino Division / SBN Introduction to neutrino physics Tuesday June 26 One West Leo Aliaga Fermilab SCD
10 CFR 10.25 - NRC Hearing Counsel.
Code of Federal Regulations, 2010 CFR
2010-01-01
...) Hearing Counsel assigned pursuant to § 10.24 will, before the scheduling of the hearing, review the... physical evidence relied upon by the Director, Division of Facilities and Security, in making a finding... witness and the production of documents and other physical evidence is deemed by the Hearing Counsel to be...
Health and Safety Research Division. Progress report, October 1, 1979-March 31, 1981
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1981-08-01
Research progress for the period October 1, 1979 through March 31, 1981 is reported. Research conducted by the Office of Integrated Assessments and Policy Analysis, Health Studies Section, Technology Assessments Section, Biological and Radiation Physics Section, and Chemical Physics Section is summarized. (ACR)
One Year Term Review as a Participating Guest in the Detonator and Detonation Physics Group
DOE Office of Scientific and Technical Information (OSTI.GOV)
Lefrancois, A; Roeske, F; Tran, T
2006-02-06
The one year stay was possible after a long administrative process, because of the fact that this was the first participating guest of B division as a foreign national in HEAF (High Explosives Application Facility) with the Detonator/Detonation Physics Group.
This project entails the development of an alternative technology for plating gun barrel steel to replace the process electroplating of chrome (Cr-electroplate) with physical vapor deposition of tantalum (Ta-PVD). Developed by Benet Laboratory at Watervliet Arsenal, this project'...
Standards for Teachers of Students with Physical and Health Disabilities
ERIC Educational Resources Information Center
Baldwin, Joni L.
2007-01-01
The Council for Exceptional Children (CEC) has been involved in the development of standards for teachers of students with exceptional learning needs since 1922. These standards drive the curriculum of institutions of higher education and state licensing requirements. The Division for Physical and Health Disabilities assisted in developing…
Students' Epistemological Framing in Quantum Mechanics Problem Solving
ERIC Educational Resources Information Center
Modir, Bahar; Thompson, John D.; Sayre, Eleanor C.
2017-01-01
Students' difficulties in quantum mechanics may be the result of unproductive framing and not a fundamental inability to solve the problems or misconceptions about physics content. We observed groups of students solving quantum mechanics problems in an upper-division physics course. Using the lens of epistemological framing, we investigated four…
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Chemical Technology Division, Annual technical report, 1991
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1992-03-01
Highlights of the Chemical Technology (CMT) Division's activities during 1991 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for fluidized-bed combustion and coal-fired magnetohydrodynamics; (3) methods for treatment of hazardous and mixed hazardous/radioactive waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (5) processes for separating and recovering transuranic elements from nuclear waste streams; (6) recovery processes for discharged fuel and the uranium blanket in the Integral Fast Reactor (IFR); (7) processes for removalmore » of actinides in spent fuel from commercial water-cooled nuclear reactors and burnup in IFRs; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources; chemistry of superconducting oxides and other materials of interest with technological application; interfacial processes of importance to corrosion science, catalysis, and high-temperature superconductivity; and the geochemical processes involved in water-rock interactions occurring in active hydrothermal systems. In addition, the Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the technical programs at Argonne National Laboratory (ANL).« less
Physical Property Measurements on Samples from an Analogue Soviet Nuclear Test Site: Northern Maine
1991-04-11
A Division of Maxwell Laboratory Berkeley, CA 94720 P.O. Box 1620 La Jolla, CA 92038-1620 Dr. Richard LaCoss Prof. William Menke MIT-Lincoln...90089-0741 Tucson, AZ 85721 Prof. Christopher H. Scholz Dr. William Wortman Lamont-Doherty Geological Observatory Mission Research Corporation of...Stanford, CA 94305 Reston, VA 22091 Mr. William J. Best Prof. Robert W. Clayton 907 Westwood Drive Seismological Laboratory Vienna, VA 22180 Division
An Analysis of the Marine Corps Individual Ready Reserve Screening Process
2015-03-01
Identification of anticipated requirements among M&RA and HQMC’s Manpower Management division (MM) and Manpower Plans and Policy division (MP) for...Retain a militruy identification card • Attend musters when ordered • Maintain physical, height, and weight standards IRR MEMBER’S YEARS IN THE...their components.32 The identification of these specialties and required training might prove advantageous to the AC and RC.33 b. The Transition to
Physical and Economic Feasibility of Nonstructural Flood Plain Management Measures,
1978-03-01
5. U.S. Army Engineers, "Flood Proofing: Example of Raising a Private Residence", South Atlantic Division, Technical Services Report, March 1977. 6...Army Engineers, "Flood Proofing: Example of Raising a Private Residence", South Atlantic Division, Technical Services Report, March 1977. 25 . .. .. .i 0...10,000 (except below) Alaska, Hawaii, Guam, and 50,000 10,000 Virgin Islands Other Residential (except single-family) All states and jurisdictions
Federal Register 2010, 2011, 2012, 2013, 2014
2010-09-21
... Airlines, a Subsidiary of Skywest, Inc., Airport Customer Service Division, Including On-Site Leased... Airlines, a Subsidiary of Skywest, Inc., Airport Customer Service Division v. United States Secretary of... former workers of Atlantic Southeast Airlines, a Subsidiary of Skywest, Inc., Airport Customer Division...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kippen, Karen Elizabeth
Physics Flash is the newsletter for the Physics Division at Los Alamos National Laboratory. This newsletter is for August 2016. The following topics are covered: "Accomplishments in the Trident Laser Facility", "David Meyerhofer elected as chair-elect APS Nominating Committee", "HAWC searches for gamma rays from dark matter", "Proton Radiography Facility commissions electromagnetic magnifier", and "Cosmic ray muon computed tomography of spent nuclear fuel in dry storage casks."
The Future of U.S. Doctoral Programs in Physics (May 22-23, 1989). Topical Conference Series.
ERIC Educational Resources Information Center
Neal, Homer A., Ed.; Wilson, Jack M., Ed.
The 1990's represent an unusual period in physics. Some areas are in a state of unusual excitement, while there are divisions growing within the discipline over priorities. Another problem facing the field at this time is that few U.S. nationals are going into careers related to physics. In addition, the percentage of females and minorities…
The Science Training Program for Young Italian Physicists and Engineers at Fermilab
DOE Office of Scientific and Technical Information (OSTI.GOV)
Barzi, Emanuela; Bellettini, Giorgio; Donati, Simone
2015-03-12
Since 1984 Fermilab has been hosting a two-month summer training program for selected undergraduate and graduate Italian students in physics and engineering. Building on the traditional close collaboration between the Italian National Institute of Nuclear Physics (INFN) and Fermilab, the program is supported by INFN, by the DOE and by the Scuola Superiore di Sant`Anna of Pisa (SSSA), and is run by the Cultural Association of Italians at Fermilab (CAIF). This year the University of Pisa has qualified it as a “University of Pisa Summer School”, and will grant successful students with European Supplementary Credits. Physics students join the Fermilabmore » HEP research groups, while engineers join the Particle Physics, Accelerator, Technical, and Computing Divisions. Some students have also been sent to other U.S. laboratories and universities for special trainings. The programs cover topics of great interest for science and for social applications in general, like advanced computing, distributed data analysis, nanoelectronics, particle detectors for earth and space experiments, high precision mechanics, applied superconductivity. In the years, over 350 students have been trained and are now employed in the most diverse fields in Italy, Europe, and the U.S. In addition, the existing Laurea Program in Fermilab Technical Division was extended to the whole laboratory, with presently two students in Master’s thesis programs on neutrino physics and detectors in the Neutrino Division. And finally, a joint venture with the Italian Scientists and Scholars North-America Foundation (ISSNAF) provided this year 4 professional engineers free of charge for Fermilab. More details on all of the above can be found below.« less
Heat Treat Shop in the Technical Services Building
1948-01-21
A technician prepares a metal component for a high-temperature bake in the Heat Treatment Shop at the National Advisory Committee for Aeronautics (NACA) Lewis Flight Propulsion Laboratory. Fabrication Division under Dan White and John Dalgleish created almost all of the equipment and models used at the laboratory. The Technical Services Building, referred to as the Fab Shop, contained a number of specialized shops in the 1940s and 1950s. These included a Machine Shop, Sheet Metal Shop, Wood and Pattern Shop, Instrument Shop, Thermocouple Shop, Heat Treating Shop, Metallurgical Laboratory, and Fabrication Office. The Metallurgical Laboratory contained a control lab for the Heat Treating Shop and a service lab for the NACA Lewis research divisions. This metallurgical group performed tensile and impact tests on metals to determine their suitability for specific research or equipment. The Heat Treating Shop heated metal parts to optimize their physical properties and contained a Precision Castings Foundry to manufacture equipment made of heat resisting alloys.
Teaching Quantum Mechanics through Project-based Learning
NASA Astrophysics Data System (ADS)
Duda, Gintaras; Ward, Kristina
2014-03-01
Project/Problem-based learning (PBL) is an active area of research within the physics education research (PER) community, however, work done to date has focused on introductory courses. This talk will explore research on upper division quantum mechanics, a junior/senior level course at Creighton University, which was taught using PBL pedagogy with no in-class lectures. Course time was primarily spent on lecture tutorials and projects, which included alpha decay of Uranium, neutrino oscillations, and FTIR spectroscopy of HCl. This talk will explore: 1. student learning in light of the new pedagogy and embedded meta-cognitive self-monitoring exercises, 2. the effect of the PBL curriculum on student attitudes, motivation, and students' epistemologies, and 3. the use of explicit written reflections within a physics course to probe student understanding.
Polyimides with attached chromophores for improved performance in electro-optical devices
NASA Astrophysics Data System (ADS)
Guenthner, Andrew J.; Wright, Michael E.; Fallis, Stephen; Lindsay, Geoffrey A.; Petteys, Brian J.; Yandek, Gregory R.; Zang, De-Yu; Sanghadasa, Mohan; Ashley, Paul R.
2006-08-01
A method of chemical synthesis that allows for the facile attachment of a wide variety of chemical compounds, including highly active nonlinear optical chromophores, to polyimides has been developed recently at the Naval Air Warfare Center, Weapons Division. The synthesis of these compounds is presented, along with a discussion of their relevant physical and chemical properties, alone and in comparison to equivalent guest/host materials. Examples of attached chromophores include the well-known Disperse Red 1, along with high-activity chromophores of more recent interest such as FTC and CLD. The synthesis of structures that contain both attached chromophores and chemical functionalities that enable thermal cross-linking of the polyimides is also discussed.
Metals and Ceramics Division annual progress report, October 1, 1978-June 30, 1979
DOE Office of Scientific and Technical Information (OSTI.GOV)
Peterson, S.
Research is reported concerning: (1) engineering materials including materials compatibility, mechanical properties, nondestructive testing, pressure vessel technology, and welding and brazing; (2) fuels and processes consisting of ceramic technology, fuel cycle technology, fuels evaluation, fuels fabrication and metals processing; and (3) materials science which includes, ceramic studies, physical metallurgy and properties, radiation effects and microstructural analysis, metastable and superconducting materials, structure and properties of surfaces, theoretical research, and x-ray research and applications. Highlights of the work of the metallographic group and the current status of the High-Temperature Materials Laboratory (HTML) and the Materials and Structures Technology Management Center (MSTMC) aremore » presented. (FS)« less
Brownmillerite CaCoO2.5: Synthesis, Re-entrant Structural Transitions and Magnetic properties
NASA Astrophysics Data System (ADS)
Zhang, Junjie; Zheng, Hong; Malliakas, Christos; Allred, Jared; Ren, Yang; Li, Qing'an; Han, Tianheng; Mitchell, John
2015-03-01
Cobalt oxides attract both fundamental and technological attention due to their physical properties including thermoelectricity, giant magnetoresistance, superconductivity and multiferroicity. Here we report the first synthesis of CaCoO2.5 single crystals using a high pressure optical-image floating zone technique. We find that it is an ordered oxygen-deficient perovskite of the brownmillerite type, and it undergoes an unprecedented re-entrant structural phase transitions (Pcmb --> P2/c11 --> P121/m1 --> Pcmb) with decreasing temperature. We describe its temperature-dependent structural, thermal, and magnetic properties, including AFM ordering near 240 K, with a weakly spin canted ferromagnet ground state below 140 K. The magnetic response of CaCoO2.5 depends markedly on the cooling rate and field history. Magnetization data also imply the potential of a distinct, field-induced phase arising uniquely from the P121/m1 structure, revealed as kinetically trapped by a rapid-cooling protocol. Work in the Materials Science Division at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Division of Materials Science and Engineering.
DOE Office of Scientific and Technical Information (OSTI.GOV)
L.G. Hoffman; K. Alvar; T. Buhl
2002-05-01
This progress report presents the results of 11 projects funded ($500K) in FY01 by the Technology Development, Evaluation, and Application (TDEA) Committee of the Environment, Safety, and Health Division (ESH). Five projects fit into the Health Physics discipline, 5 projects are environmental science and one is industrial hygiene/safety. As a result of their TDEA-funded projects, investigators have published sixteen papers in professional journals, proceedings, or Los Alamos reports and presented their work at professional meetings. Supplement funds and in-kind contributions, such as staff time, instrument use, and workspace, were also provided to TDEA-funded projects by organizations external to ESH Divisions.
Fire prevention in the California Division of Forestry. . .personnel and practices
Adam Sarapata; William S. Folkman
1970-01-01
A sample of California Division of Forestry employees whose jobs include some contact with the public were queried about job satisfaction and employee motivations, and their responses were related to the Division's fire prevention program. Most respondents felt that Division management considered the program less important than fire suppression and detection. They...
2016-06-05
have attended and made presen- tations at the annual APS Division of Plasma Physics Meeting, the bi-annual High Energy Laboratory Astrophysics meeting...the AFOSR Space Science Pro- gram Review, the SHINE solar physics meeting, the International Astrophysics Conference, and the workshop “Complex plasma...tor k and Resolving Space-time Ambiguity. GR-Space Physics . submitted. Bellan, P. M., Zhai, X., Chai, K. B., & Ha, B. N. 2015. Complex astrophysical
Knowles, Sarah E; Chew-Graham, Carolyn; Coupe, Nia; Adeyemi, Isabel; Keyworth, Chris; Thampy, Harish; Coventry, Peter A
2013-09-20
Mental-physical multi-morbidities pose challenges for primary care services that traditionally focus on single diseases. Collaborative care models encourage inter-professional working to deliver better care for patients with multiple chronic conditions, such as depression and long-term physical health problems. Successive trials from the United States have shown that collaborative care effectively improves depression outcomes, even in people with long-term conditions (LTCs), but little is known about how to implement collaborative care in the United Kingdom. The aim of the study was to explore the extent to which collaborative care was implemented in a naturalistic National Health Service setting. A naturalistic pilot study of collaborative care was undertaken in North West England. Primary care mental health professionals from IAPT (Increasing Access to Psychological Therapies) services and general practice nurses were trained to collaboratively identify and manage patients with co-morbid depression and long-term conditions. Qualitative interviews were performed with health professionals at the beginning and end of the pilot phase. Normalization Process Theory guided analysis. Health professionals adopted limited elements of the collaborative care model in practice. Although benefits of co-location in primary care practices were reported, including reduced stigma of accessing mental health treatment and greater ease of disposal for identified patients, existing norms around the division of mental and physical health work in primary care were maintained, limiting integration of the mental health practitioners into the practice setting. Neither the mental health practitioners nor the practice nurses perceived benefits to joint management of patients. Established divisions between mental and physical health may pose particular challenges for multi-morbidity service delivery models such as collaborative care. Future work should explore patient perspectives about whether greater inter-professional working enhances experiences of care. The study demonstrates that research into implementation of novel treatments must consider how the introduction of innovation can be balanced with the need for integration into existing practice.
2013-01-01
Background Mental-physical multi-morbidities pose challenges for primary care services that traditionally focus on single diseases. Collaborative care models encourage inter-professional working to deliver better care for patients with multiple chronic conditions, such as depression and long-term physical health problems. Successive trials from the United States have shown that collaborative care effectively improves depression outcomes, even in people with long-term conditions (LTCs), but little is known about how to implement collaborative care in the United Kingdom. The aim of the study was to explore the extent to which collaborative care was implemented in a naturalistic National Health Service setting. Methods A naturalistic pilot study of collaborative care was undertaken in North West England. Primary care mental health professionals from IAPT (Increasing Access to Psychological Therapies) services and general practice nurses were trained to collaboratively identify and manage patients with co-morbid depression and long-term conditions. Qualitative interviews were performed with health professionals at the beginning and end of the pilot phase. Normalization Process Theory guided analysis. Results Health professionals adopted limited elements of the collaborative care model in practice. Although benefits of co-location in primary care practices were reported, including reduced stigma of accessing mental health treatment and greater ease of disposal for identified patients, existing norms around the division of mental and physical health work in primary care were maintained, limiting integration of the mental health practitioners into the practice setting. Neither the mental health practitioners nor the practice nurses perceived benefits to joint management of patients. Conclusions Established divisions between mental and physical health may pose particular challenges for multi-morbidity service delivery models such as collaborative care. Future work should explore patient perspectives about whether greater inter-professional working enhances experiences of care. The study demonstrates that research into implementation of novel treatments must consider how the introduction of innovation can be balanced with the need for integration into existing practice. PMID:24053257
Griffith, Megan E.; Mayer, Ulrike; Capron, Arnaud; Ngo, Quy A.; Surendrarao, Anandkumar; McClinton, Regina; Jürgens, Gerd; Sundaresan, Venkatesan
2007-01-01
Embryogenesis in Arabidopsis thaliana is marked by a predictable sequence of oriented cell divisions, which precede cell fate determination. We show that mutation of the TORMOZ (TOZ) gene yields embryos with aberrant cell division planes and arrested embryos that appear not to have established normal patterning. The defects in toz mutants differ from previously described mutations that affect embryonic cell division patterns. Longitudinal division planes of the proembryo are frequently replaced by transverse divisions and less frequently by oblique divisions, while divisions of the suspensor cells, which divide only transversely, appear generally unaffected. Expression patterns of selected embryo patterning genes are altered in the mutant embryos, implying that the positional cues required for their proper expression are perturbed by the misoriented divisions. The TOZ gene encodes a nucleolar protein containing WD repeats. Putative TOZ orthologs exist in other eukaryotes including Saccharomyces cerevisiae, where the protein is predicted to function in 18S rRNA biogenesis. We find that disruption of the Sp TOZ gene results in cell division defects in Schizosaccharomyces pombe. Previous studies in yeast and animal cells have identified nucleolar proteins that regulate the exit from M phase and cytokinesis, including factors involved in pre-rRNA processing. Our study suggests that in plant cells, nucleolar functions might interact with the processes of regulated cell divisions and influence the selection of longitudinal division planes during embryogenesis. PMID:17616738
Walsh, James C; Angstmann, Christopher N; Duggin, Iain G; Curmi, Paul M G
2015-01-01
Oscillations of the Min protein system are involved in the correct midcell placement of the divisome during Escherichia coli cell division. Based on molecular interactions of the Min system, we formulated a mathematical model that reproduces Min patterning during cell growth and division. Specifically, the increase in the residence time of MinD attached to the membrane as its own concentration increases, is accounted for by dimerisation of membrane-bound MinD and its interaction with MinE. Simulation of this system generates unparalleled correlation between the waveshape of experimental and theoretical MinD distributions, suggesting that the dominant interactions of the physical system have been successfully incorporated into the model. For cells where MinD is fully-labelled with GFP, the model reproduces the stationary localization of MinD-GFP for short cells, followed by oscillations from pole to pole in larger cells, and the transition to the symmetric distribution during cell filamentation. Cells containing a secondary, GFP-labelled MinD display a contrasting pattern. The model is able to account for these differences, including temporary midcell localization just prior to division, by increasing the rate constant controlling MinD ATPase and heterotetramer dissociation. For both experimental conditions, the model can explain how cell division results in an equal distribution of MinD and MinE in the two daughter cells, and accounts for the temperature dependence of the period of Min oscillations. Thus, we show that while other interactions may be present, they are not needed to reproduce the main characteristics of the Min system in vivo.
European Scientific Notes. Volume 35, Number 3,
1981-03-31
the distribution of par- fodder to feed the animals. ticulate matter in Icelandic coastal Because of their country’s small size waters. He is studying...however, has the possibil- of the Condensed Matter Division of the ity of depositing the energy required for European Physical Society (EPS) which... Matter Division of the heat energy is deposited at the front of EPS. the slab; isothermal (t ’, 10 s), in which Of xital concern to those present the
NASA Astrophysics Data System (ADS)
Dounas-Frazer, Dimitri R.; Stanley, Jacob T.; Lewandowski, H. J.
2017-12-01
We investigate students' sense of ownership of multiweek final projects in an upper-division optics lab course. Using a multiple case study approach, we describe three student projects in detail. Within-case analyses focused on identifying key issues in each project, and constructing chronological descriptions of those events. Cross-case analysis focused on identifying emergent themes with respect to five dimensions of project ownership: student agency, instructor mentorship, peer collaboration, interest and value, and affective responses. Our within- and cross-case analyses yielded three major findings. First, coupling division of labor with collective brainstorming can help balance student agency, instructor mentorship, and peer collaboration. Second, students' interest in the project and perceptions of its value can increase over time; initial student interest in the project topic is not a necessary condition for student ownership of the project. Third, student ownership is characterized by a wide range of emotions that fluctuate as students alternate between extended periods of struggle and moments of success while working on their projects. These findings not only extend the literature on student ownership into a new educational domain—namely, upper-division physics labs—they also have concrete implications for the design of experimental physics projects in courses for which student ownership is a desired learning outcome. We describe the course and projects in sufficient detail that others can adapt our results to their particular contexts.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-07-29
..., Pricing Policy Division, (202) 418-1520 or [email protected] . SUPPLEMENTARY INFORMATION: This is... Communications Commission. Kalpak Gude, Division Chief, Pricing Policy Division, Wireline Competition Bureau...
28 CFR 16.93 - Exemption of Tax Division Systems-limited access.
Code of Federal Regulations, 2010 CFR
2010-07-01
... MATERIAL OR INFORMATION Exemption of Records Systems Under the Privacy Act § 16.93 Exemption of Tax... necessary to protect the privacy and physical safety of witnesses and informants. (9)(e)(5). In the... information. Such exemption is further necessary to protect the privacy and physical safety of witnesses and...
Faculty Beliefs about the Purposes for Teaching Undergraduate Physical Chemistry Courses
ERIC Educational Resources Information Center
Mack, Michael R.; Towns, Marcy H.
2016-01-01
We report the results of a phenomenographic analysis of faculty beliefs about the purposes for teaching upper-division physical chemistry courses in the undergraduate curriculum. A purposeful sampling strategy was used to recruit a diverse group of faculty for interviews. Collectively, the participating faculty regularly teach or have taught…
ERIC Educational Resources Information Center
Gambari, Amosa Isiaka; Yusuf, Mudasiru Olalere
2015-01-01
This study investigated the effectiveness of computer-assisted Students' Team Achievement Division (STAD) cooperative learning strategy on physics problem solving, students' achievement and retention. It also examined if the student performance would vary with gender. Purposive sampling technique was used to select two senior secondary schools…
Tiers for Fears: Sensible, Streamlined Sharing of Special Collections
ERIC Educational Resources Information Center
Massie, Dennis
2013-01-01
This report presents strategies for providing efficient and affordable interlending of actual physical items from special collections for research purposes, as well as advice on determining if a loan is the most appropriate way to fulfill a particular request. Lending physical items ranks among the most divisive issues in the field of archives and…
Model-Based Reasoning in the Physics Laboratory: Framework and Initial Results
ERIC Educational Resources Information Center
Zwickl, Benjamin M.; Hu, Dehui; Finkelstein, Noah; Lewandowski, H. J.
2015-01-01
We review and extend existing frameworks on modeling to develop a new framework that describes model-based reasoning in introductory and upper-division physics laboratories. Constructing and using models are core scientific practices that have gained significant attention within K-12 and higher education. Although modeling is a broadly applicable…
Argonne Physics Division - ATLAS
Strategic Plan (2014) ATLAS Gus Savard Guy Savard, Director of ATLAS Welcome to ATLAS, the Argonne Tandem users. ATLAS mission statement and strategic plan guide the operation of the facility. The strategic plan defines the facilities main goals and is aligned with the US Nuclear Physics long-range plan
What Physicists Mean By the Equals Sign in Undergraduate Education
NASA Astrophysics Data System (ADS)
Kornick, Kellianne; Alaee, Dina; Sayre, Eleanor; Franklin, Scott
2017-01-01
Mathematical syntax allows for the description of meaningful concepts in the physical sciences, and having nuanced proficiency in mathematical formalism is closely tied to communication and understanding of physical principles. The concept of equality is especially important, as it constrains and dictates the relationships between two equated expressions, and a student with detailed understanding of these relationships can derive physical meaning from syntactical expressions mediated by equals signs by knowing the ``meaning'' of equals signs. We delineate types of equals signs as used in undergraduate textbooks and develop a categorization scheme in order to investigate how equals signs are used paradigmatically and culturally in textbooks to convey physical meaning. We classify equals signs into general clusters (causal, definitional, assignment, balancing, and ``just math''), each cluster containing more detailed types. We investigate differences across various topics and between introductory and upper-division textbooks. We found that upper division textbooks are more likely to use balancing, definitional, and more complex kinds of assignment forms, while introductory texts have much higher frequencies of simple assignment and ``just math'' types.
RETURN TO DIVISION IA FOOTBALL FOLLOWING A 1ST METATARSOPHALANGEAL JOINT DORSAL DISLOCATION
Cook, Chad; Zarzour, Hap; Moorman, Claude T.
2010-01-01
Background. Although rare in occurrence, a dorsal dislocation of the 1st metatarsophalangeal (MTP) joint has been successfully treated using surgical and/or non-operative treatment. No descriptions of conservative intervention following a dorsal dislocation of the MTP joint in an athlete participating in a high contact sport are present in the literature. Objectives. The purpose of this case report is to describe the intervention and clinical reasoning during the rehabilitative process of a collegiate football player diagnosed with a 1st MTP joint dorsal dislocation. The plan of care and return to play criteria used for this athlete are presented. Case Description. The case involved a 19-year-old male Division IA football player, who suffered a traumatic dorsal dislocation of the 1st MTP joint during practice. The dislocation was initially treated on-site by closed reduction. Non-operative management included immobilization, therapeutic exercises, non-steroidal anti-inflammatories, manual treatment, modalities, prophylactic athletic taping, gait training, and a sport specific progression program for full return to Division IA football. Outcomes. Discharge from physical therapy occurred after six weeks of treatment. At discharge, no significant deviations existed during running, burst, and agility related drills. At a six-month follow-up, the patient reported full return to all football activities including contact drills without restrictions. Discussion. This case describes an effective six-week rehabilitation intervention for a collegiate football player who sustained a traumatic great toe dorsal dislocation. Further study is suggested to evaluate the intervention strategies and timeframe for return to contact sports. PMID:21589669
NASA Astrophysics Data System (ADS)
2014-08-01
A scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS), entitled 'Superconductivity in iron-based compounds', was held on 29 January 2014 at the conference hall of the Lebedev Physical Institute, RAS. The agenda of the session, announced on the website http://www.gpad.ac.ru of the RAS Physical Sciences Division listed the following reports: (1) Eremin I M (Institut für Theoretische Physik III, Ruhr-Universität Bochum, Bochum, Deutschland; Kazan (Volga region) Federal University, Kazan, Russian Federation) "Antiferromagnetism in iron-based superconductors: interaction of the magnetic, orbital, and lattice degrees of freedom"; (2) Korshunov M M (Kirenskii Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk) "Superconducting state in iron-based materials and spin-fluctuation pairing theory"; (3) Kuzmicheva T E (Lebedev Physical Institute, Russian Academy of Sciences, Moscow; Lomonosov Moscow State University) "Andreev spectroscopy of iron-based superconductors: temperature dependence of the order parameters and scaling of Δ_L, S with T_C"; (4) Eltsev Yu F (Lebedev Physical Institute, Russian Academy of Sciences, Moscow) "Synthesis and study of the magnetic and transport properties of iron-based superconductors of the 122 family". Papers written on the basis of oral presentations 1-4 are published below. • Antiferromagnetism in iron-based superconductors: magnetic order in the model of delocalized electrons, I M Eremin Physics-Uspekhi, 2014, Volume 57, Number 8, Pages 807-813 • Superconducting state in iron-based materials and spin-fluctuation pairing theory, M M Korshunov Physics-Uspekhi, 2014, Volume 57, Number 8, Pages 813-819 • Andreev spectroscopy of iron-based superconductors: temperature dependence of the order parameters and scaling of Δ_L, S with T_C, T E Kuzmicheva, S A Kuzmichev, M G Mikheev, Ya G Ponomarev, S N Tchesnokov, V M Pudalov, E P Khlybov, N D Zhigadlo Physics-Uspekhi, 2014, Volume 57, Number 8, Pages 819-827 • Magnetic and transport properties of single crystals of Fe-based superconductors of the 122 family, Yu F Eltsev, K S Pervakov, V A Vlasenko, S Yu Gavrilkin, E P Khlybov, V M Pudalov Physics-Uspekhi, 2014, Volume 57, Number 8, Pages 827-832
2017-07-10
physical training programs, health behaviors, and perceptions of leadership and medical support related to injury. Survey responses were received...illness, and health behavior data is recommended for monitoring of physical training program effects and collection of data necessary to inform future...calculated for demographics, personal characteristics, physical fitness and occupational demands, leadership and medical support, health behaviors
Permafrost, Seasonally Frozen Ground, Snow Cover and Vegetation in the USSR
1984-12-01
Snow Cover in Physical Geographic Processes (1948). He covered aspects of the dynamics of the snow cover, its properties and the connection between...Bigl, Research Physical Scientist, of the Geotechnical Research Branch, Experimental Engineering Division, un- der the general supervision of Dr...generalized from a detailed vegetation map in the volume Physical Geographic Atlas of the World (Gerasimov 1964), The tundra zone consists mostly of
Couples' Attitudes, Childbirth, and the Division of Labor
ERIC Educational Resources Information Center
Jansen, Miranda; Liefbroer, Aart C.
2006-01-01
In this article, the authors examine effects of partners' attitudes on the timing of the birth of a first child, the division of domestic labor, the division of child care, and the division of paid labor of couples. They use data from the Panel Study of Social Integration in the Netherlands, which includes independent measures of both partners'…
Code of Federal Regulations, 2014 CFR
2014-07-01
... 1971), as revised to include a division of Carson Desert (area 101) into two areas, a smaller area 101... Carson Desert (area 101) into two areas, a smaller area 101 and area 101A, and a division of Boulder Flat... division of Carson Desert (area 101) into two areas, a smaller area 101 and area 101A, and a division of...
Berkeley Lab - Materials Sciences Division
Synthesis Condensed Matter and Materials Physics Scattering and Instrumentation Science Centers Center for ; Finance Templates Travel One-Stop Latest News Postdoc Forum Research Highlights Awards Publications
NASA Astrophysics Data System (ADS)
2011-12-01
A scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS) dedicated to the 120th anniversary of the birth of Sergei Ivanovich Vavilov was held in the Conference Hall of the P N Lebedev Physical Institute, RAS, on 30 March 2011. The following reports were put on the session's agenda posted on the web site www.gpad.ac.ru of the Physical Sciences Division, RAS: (1) Masalov A V (P N Lebedev Physical Institute, RAS, Moscow) "S I Vavilov and nonlinear optics"; (2) Basiev T T (Laser Materials and Technology Research Center, A M Prokhorov General Physics Institute, RAS, Moscow) "Luminescent nanophotonics and high-power lasers"; (3) Vitukhnovsky A G (P N Lebedev Physical Institute, RAS, Moscow) "Advances in luminescent light sources and displays"; (4) Aleksandrov E B (Ioffe Physical Technical Institute, RAS, St. Petersburg) "Sergei Ivanovich Vavilov and the special theory of relativity"; (5) Bolotovsky B M (P N Lebedev Physical Institute, RAS, Moscow) "Vavilov-Cherenkov effect"; (6) Vizgin V P (S I Vavilov Institute of the History of Natural Scienses and Technology, RAS, Moscow) "Sergei Ivanovich Vavilov as a historian of science"; (7) Ginzburg A S (Knowledge Society) "Academician S I Vavilov — a devotee of the enlightenment and the first president of the Knowledge Society of the USSR". The papers written on the basis of reports 1-4 and 6 are given below. The main contents of report 5 is reflected in the paper "Vavilov-Cherenkov radiation: its discovery and application" [Usp. Fiz. Nauk 179 1161 (2009); Phys. Usp. 52 1099 (2009)] published earlier by B M Bolotovsky. • S I Vavilov and nonlinear optics, A V Masalov, Z A Chizhikova Physics-Uspekhi, 2011, Volume 54, Number 12, Pages 1257-1262 • Luminescent nanophotonics, fluoride laser ceramics, and crystals, T T Basiev, I T Basieva, M E Doroshenko Physics-Uspekhi, 2011, Volume 54, Number 12, Pages 1262-1268 • Advances in light sources and displays, A G Vitukhnovsky Physics-Uspekhi, 2011, Volume 54, Number 12, Pages 1268-1272 • Direct experimental demonstration of the second special relativity postulate: the speed of light is independent of the speed of the source, E B Aleksandrov, P A Aleksandrov, V S Zapasskii, V N Korchuganov, A I Stirin Physics-Uspekhi, 2011, Volume 54, Number 12, Pages 1272-1278 • Sergei Ivanovich Vavilov as a historian of science, V P Vizgin, A V Kessenikh, K A Tomilin Physics-Uspekhi, 2011, Volume 54, Number 12, Pages 1278-1283
Division G Commission 35: Stellar Constitution
NASA Astrophysics Data System (ADS)
Limongi, Marco; Lattanzio, John C.; Charbonnel, Corinne; Dominguez, Inma; Isern, Jordi; Karakas, Amanda; Leitherer, Claus; Marconi, Marcella; Shaviv, Giora; van Loon, Jacco
2016-04-01
Commission 35 (C35), ``Stellar Constitution'', consists of members of the International Astronomical Union whose research spans many aspects of theoretical and observational stellar physics and it is mainly focused on the comprehension of the properties of stars, stellar populations and galaxies. The number of members of C35 increased progressively over the last ten years and currently C35 comprises about 400 members. C35 was part of Division IV (Stars) until 2014 and then became part of Division G (Stars and Stellar Physics), after the main IAU reorganisation in 2015. Four Working Groups have been created over the years under Division IV, initially, and Division G later: WG on Active B Stars, WG on Massive Stars, WG on Abundances in Red Giant and WG on Chemically Peculiar and Related Stars. In the last decade the Commission had 4 presidents, Wojciech Dziembowski (2003-2006), Francesca D'Antona (2006-2009), Corinne Charbonnel (2009-2012) and Marco Limongi (2012-2015), who were assisted by an Organizing Committee (OC), usually composed of about 10 members, all of them elected by the C35 members and holding their positions for three years. The C35 webpage (http://iau-c35.stsci.edu) has been designed and continuously maintained by Claus Leitherer from the Space Telescope Institute, who deserves our special thanks. In addition to the various general information on the Commission structure and activities, it contains links to various resources, of interest for the members, such as stellar models, evolutionary tracks and isochrones, synthetic stellar populations, stellar yields and input physics (equation of state, nuclear cross sections, opacity tables), provided by various groups. The main activity of the C35 OC is that of evaluating, ranking and eventually supporting the proposals for IAU sponsored meetings. In the last decade the Commission has supported several meetings focused on topics more or less relevant to C35. Since the primary aim of this document is to present the main activity of C35 over the last ten years, in the following we present some scientific highlights that emerged from the most relevant IAU Symposia and meetings supported and organized by C35 in the last decade.
Health in police officers: Role of risk factor clusters and police divisions.
Habersaat, Stephanie A; Geiger, Ashley M; Abdellaoui, Sid; Wolf, Jutta M
2015-10-01
Law enforcement is a stressful occupation associated with significant health problems. To date, most studies have focused on one specific factor or one domain of risk factors (e.g., organizational, personal). However, it is more likely that specific combinations of risk factors are differentially health relevant and further, depend on the area of police work. A self-selected group of officers from the criminal, community, and emergency division (N = 84) of a Swiss state police department answered questionnaires assessing personal and organizational risk factors as well as mental and physical health indicators. In general, few differences were observed across divisions in terms of risk factors or health indicators. Cluster analysis of all risk factors established a high-risk and a low-risk cluster with significant links to all mental health outcomes. Risk cluster-by-division interactions revealed that, in the high-risk cluster, Emergency officers reported fewer physical symptoms, while community officers reported more posttraumatic stress symptoms. Criminal officers in the high-risk cluster tended to perceived more stress. Finally, perceived stress did not mediate the relationship between risk clusters and posttraumatic stress symptoms. In summary, our results support the notion that police officers are a heterogeneous population in terms of processes linking risk factors and health indicators. This heterogeneity thereby appeared to be more dependent on personal factors and individuals' perception of their own work conditions than division-specific work environments. Our findings further suggest that stress-reduction interventions that do not target job-relevant sources of stress may only show limited effectiveness in reducing health risks associated with police work. Copyright © 2015 Elsevier Ltd. All rights reserved.
Health in police officers: Role of risk factor clusters and police divisions
Habersaat, Stephanie A.; Geiger, Ashley M.; Abdellaoui, Sid; Wolf, Jutta M.
2015-01-01
Objective Law enforcement is a stressful occupation associated with significant health problems. To date, most studies have focused on one specific factor or one domain of risk factors (e.g., organizational, personal). However, it is more likely that specific combinations of risk factors are differentially health relevant and further, depend on the area of police work. Methods A self-selected group of officers from the criminal, community, and emergency division (N = 84) of a Swiss state police department answered questionnaires assessing personal and organizational risk factors as well as mental and physical health indicators. Results In general, few differences were observed across divisions in terms of risk factors or health indicators. Cluster analysis of all risk factors established a high-risk and a low-risk cluster with significant links to all mental health outcomes. Risk cluster-by-division interactions revealed that, in the high-risk cluster, Emergency officers reported fewer physical symptoms, while community officers reported more posttraumatic stress symptoms. Criminal officers in the high-risk cluster tended to perceived more stress. Finally, perceived stress did not mediate the relationship between risk clusters and posttraumatic stress symptoms. Conclusion In summary, our results support the notion that police officers are a heterogeneous population in terms of processes linking risk factors and health indicators. This heterogeneity thereby appeared to be more dependent on personal factors and individuals' perception of their own work conditions than division-specific work environments. Our findings further suggest that stress-reduction interventions that do not target job-relevant sources of stress may only show limited effectiveness in reducing health risks associated with police work. PMID:26364008
Berkeley Lab - Materials Sciences Division
Synthesis Condensed Matter and Materials Physics Scattering and Instrumentation Science Centers Center for ; Finance Templates Travel One-Stop Core Programs Materials Discovery, Design and Synthesis Condensed Matter
Fermilab | Particle Physics Division
Fermilab Search Toggle Fermilab Navbar Toggle Search Search Home Contact Phone Book Fermilab at Links Fermilab Home Contact Fermilab Phone Book Fermilab at Work Jobs at Fermilab Industrial
Paulette S. Gray, Ph.D. is the Director for the Division of Extramural Activities (DEA). As the director of the division, she is responsible for the overall scientific, fiscal, and administrative management of the division, including broad strategic planning, development, implementation, and evaluation.
Montana Department of Transportation Guide to Public Involvement
DOT National Transportation Integrated Search
1996-01-01
This guide describes the various methods the Transportation Planning Division of the MDOT uses to involve the public in Division activities, and also includes a chart that provides the names of staff people responsible for various Division programs. ...
NASA Human Research Program Space Radiation Program Element
NASA Technical Reports Server (NTRS)
Chappell, Lori; Huff, Janice; Patel, Janapriya; Wang, Minli; Hu, Shaowwen; Kidane, Yared; Myung-Hee, Kim; Li, Yongfeng; Nounu, Hatem; Plante, Ianik;
2013-01-01
The goal of the NASA Human Research Program's Space Radiation Program Element is to ensure that crews can safely live and work in the space radiation environment. Current work is focused on developing the knowledge base and tools required for accurate assessment of health risks resulting from space radiation exposure including cancer and circulatory and central nervous system diseases, as well as acute risks from solar particle events. Division of Space Life Sciences (DSLS) Space Radiation Team scientists work at multiple levels to advance this goal, with major projects in biological risk research; epidemiology; and physical, biophysical, and biological modeling.
Edwards, Michael B; Theriault, Daniel S; Shores, Kindal A; Melton, Karen M
2014-01-01
Research on youth physical activity has focused on urban areas. Rural adolescents are more likely to be physically inactive than urban youth, contributing to higher risk of obesity and chronic diseases. Study objectives were to: (1) identify perceived opportunities and barriers to youth physical activity within a rural area and (2) identify rural community characteristics that facilitate or inhibit efforts to promote youth physical activity. Thirty in-depth interviews were conducted with expert informants in 2 rural southern US counties. Interviewees were recruited from diverse positions across multiple sectors based on their expert knowledge of community policies and programs for youth physical activity. Informants saw ball fields, natural amenities, and school sports as primary resources for youth physical activity, but they were divided on whether opportunities were abundant or scarce. Physical distance, social isolation, lack of community offerings, and transportation were identified as key barriers. Local social networks facilitated political action and volunteer recruitment to support programs. However, communities often lacked human capital to sustain initiatives. Racial divisions influenced perceptions of opportunities. Despite divisions, there were also examples of pooling resources to create and sustain physical activity opportunities. Developing partnerships and leveraging local resources may be essential to overcoming barriers for physical activity promotion in rural areas. Involvement of church leaders, school officials, health care workers, and cooperative extension is likely needed to establish and sustain youth rural physical activity programs. Allocating resources to existing community personnel and volunteers for continuing education may be valuable. © 2014 National Rural Health Association.
NASA Astrophysics Data System (ADS)
Rodriguez, Idaykis; Potvin, Geoff; Kramer, Laird H.
2016-12-01
[This paper is part of the Focused Collection on Gender in Physics.] Active-learning approaches to teaching introductory physics have been found to improve student learning and affective gains on short-term outcomes [S. Freeman et al., Proc. Natl. Acad. Sci. U.S.A. 111, 8410 (2014)]; however, whether or not the benefits of active learning impact women to the same degree as men has been a point of concern [A. Madsen, S. B. McKagan, and E. C. Sayre, Phys. Rev. ST Phys. Educ. Res. 9, 020121 (2013)]. Further, the long-term impacts of active-learning experiences are also understudied. At Florida International University, a Hispanic-majority institution, we have implemented Modeling Instruction (MI) and the Integrated Science Learning Environment (ISLE) in introductory physics classes for the past decade. In this empirical paper, we report on a longitudinal investigation of student performance and persistence in upper level physics courses after having previously experienced MI or ISLE in their introductory physics courses, and disaggregate students by gender. Using survival analysis methods, we find women who declare physics as a major are more likely than men to graduate with a physics degree. Women are also just as likely as men to pass through the upper division courses, with the highest failure risk for both men and women occurring in the first semester of upper-division course taking. These results reinforce the need to expand considerations of performance outcomes to be longitudinal to measure the effectiveness of the entire physics experience.
Spontaneous Division and Motility in Active Nematic Droplets
NASA Astrophysics Data System (ADS)
Giomi, Luca; DeSimone, Antonio
2014-04-01
We investigate the mechanics of an active droplet endowed with internal nematic order and surrounded by an isotropic Newtonian fluid. Using numerical simulations we demonstrate that, due to the interplay between the active stresses and the defective geometry of the nematic director, this system exhibits two of the fundamental functions of living cells: spontaneous division and motility, by means of self-generated hydrodynamic flows. These behaviors can be selectively activated by controlling a single physical parameter, namely, an active variant of the capillary number.
1979-05-01
RESEARH DIVISION fLT COL JOEL BRADSHAW 1300 - 1400 HIGH EXPLOSIVE TESTING COMPU’rATIONAL DIVISION MR. (MI OMDDA 1 1400 - 1630 TOUR AND DEUNSTRATIONS OF...high schools. In sciences, Biology and Chemistry were the most common courses that had been taken. Physics was taken mainly by students again from the... biology ), and the other music. percent changed their senior year program following UNITE . percent wanted to change their program but could not. Many
Design and implementation of a Windows NT network to support CNC activities
NASA Technical Reports Server (NTRS)
Shearrow, C. A.
1996-01-01
The Manufacturing, Materials, & Processes Technology Division is undergoing dramatic changes to bring it's manufacturing practices current with today's technological revolution. The Division is developing Computer Automated Design and Computer Automated Manufacturing (CAD/CAM) abilities. The development of resource tracking is underway in the form of an accounting software package called Infisy. These two efforts will bring the division into the 1980's in relationship to manufacturing processes. Computer Integrated Manufacturing (CIM) is the final phase of change to be implemented. This document is a qualitative study and application of a CIM application capable of finishing the changes necessary to bring the manufacturing practices into the 1990's. The documentation provided in this qualitative research effort includes discovery of the current status of manufacturing in the Manufacturing, Materials, & Processes Technology Division including the software, hardware, network and mode of operation. The proposed direction of research included a network design, computers to be used, software to be used, machine to computer connections, estimate a timeline for implementation, and a cost estimate. Recommendation for the division's improvement include action to be taken, software to utilize, and computer configurations.
DCB - DNA and Chromosome Aberrations Research
Part of NCI's Division of Cancer Biology's research portfolio, this research area is focused on making clear the genetic and epigenetic mechanisms of tumorigenesis and mechanisms of chemical and physical carcinogenesis.
NASA Astrophysics Data System (ADS)
2017-04-01
A scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS) devoted to the centenary of the birth of V L Ginzburg was held on 5 October 2016 in the conference hall of the Lebedev Physical Institute, RAS. The agenda posted on the website of the RAS Physical Sciences Division http://www.gpad.ac.ru comprised the following reports: (1) Ritus V I (Lebedev Physical Institute, RAS, Moscow), "V L Ginzburg and the Atomic project"; (2) Dremin I M (Lebedev Physical Institute, RAS, Moscow), "Unexpected interaction properties between high-energy protons"; (3) Kocharovsky Vl V, Zheleznyakov V V (Institute of Applied Physics, RAS, Nizhny Novgorod), Belyanin A A (Institute of Applied Physics, RAS, Nizhny Novgorod and Texas A \\&M University, USA), Kocharovskaya E R, Kocharovsky V V (Institute of Applied Physics, RAS, Nizhny Novgorod), "Superradiance: the principles of generation and implementation in lasers"; (4) Pudalov V M (Lebedev Physical Institute, RAS, Moscow), "Structure of the superconducting order parameter in high-temperature Fe-based superconductors"; (5) Sadovski M V (Institute of Electrophysics, UB RAS, Ekaterinburg; M N Mikheev Institute of Metal Physics, UB RAS, Ekaterinburg), "High-temperature superconductivity in an FeSe monolayer: Why is T_c so high?" The paper versions of reports 1 and 4 are presented in this Phys. Usp. issue (see pp. 414 and 420, respectively). Report 2, with its content expanded but title unchanged, is to be published as a review paper in Usp. Fiz. Nauk 187 (4) 353 (2017); Phys. Usp. 60 (4) 333 (2017). Report 3, with its content expanded, is to be published as a review paper in Usp. Fiz. Nauk 187 (4) 367 (2017); Phys. Usp. 60 (4) 345 (2017). Report 5, with its content expanded, was published as a review paper in Usp. Fiz. Nauk 186 (10) 1035 (2016); Phys. Usp. 59 (10) 947 (2016). • V L Ginzburg and the Atomic Project, V I Ritus Physics-Uspekhi, 2017, Volume 60, Number 4, Pages 413-418 • On the structure of the superconducting order parameter in high-temperature Fe-based superconductors, T E Kuzmicheva, A V Muratov, S A Kuzmichev, A V Sadakov, Yu A Aleshchenko, V A Vlasenko, V P Martovitsky, K S Pervakov, Yu F Eltsev, V M Pudalov Physics-Uspekhi, 2017, Volume 60, Number 4, Pages 419-429
ERIC Educational Resources Information Center
Gambrari, Isiaka Amosa; Yusuf, Mudasiru Olalere; Thomas, David Akpa
2015-01-01
This study examined the effectiveness of computer-assisted instruction on Student Team Achievement Division (STAD) and Learning Together Model (LTM) cooperative learning strategies on Nigerian secondary students' achievement and motivation in physics. The efficacy of Authors developed computer assisted instructional package (CAI) for teaching…
Effects of Mastery Learning Approach on Secondary School Students' Physics Achievement
ERIC Educational Resources Information Center
Wambugu, Patriciah W.; Changeiywo, Johnson M.
2008-01-01
This study aimed at finding out the effects of Mastery Learning Approach (MLA) on students' achievement in Physics. The study was Quasi-experimental and Solomon Four Non-equivalent Control Group Design was used. The target population comprised of secondary school students in Kieni East Division of Nyeri District. The accessible population was Form…
Physical Education, Junior Division: Grades 4, 5, 6. Curriculum J.5.
ERIC Educational Resources Information Center
Ontario Dept. of Education, Toronto.
This manual was prepared to give teachers assistance in carrying out programs in physical education in grades 4, 5, and 6. Because many schools have space and equipment deficiencies, some emphasis has been placed on improvisation and the fullest possible use of available space and equipment. The manual is divided into two sections: organization…
ERIC Educational Resources Information Center
Library of Congress, Washington, DC. Div. for the Blind and Physically Handicapped.
Residents of the United States, its territories and possessions, and American citizens temporarily living abroad who are unable to read or use ordinary print because of physical limitations are eligible for free library service provided by the Library of Congress and a system of cooperating regional libraries. The Library of Congress Division for…
1970 Directory of Library Resources for the Blind and Physically Handicapped.
ERIC Educational Resources Information Center
Library of Congress, Washington, DC. Div. for the Blind and Physically Handicapped.
Residents of the United States, its territories and possessions, and American citizens temporarily living abroad who are unable to read or use ordinary print because of physical limitations are eligible for free library service provided by the library of Congress and a system of cooperating regional libraries. The Library of Congress Division for…
An Empirical Study of the Process of Crafting and Using Definitions
ERIC Educational Resources Information Center
Little, Angela Jean
2013-01-01
In this dissertation I analyze the process of crafting definitions whose purpose is classification. The context I examine is undergraduate upper-division physical science majors defining and naming sub-categories of a physical phenomenon in the context of a design task over an extended period of time. The goal of the design task is one of…
NASA Musculoskeletal Space Medicine and Reconditioning Program
NASA Technical Reports Server (NTRS)
Kerstman, Eric; Scheuring, Richard
2011-01-01
The Astronaut Strength, Conditioning, and Rehabilitation (ASCR) group is comprised of certified strength and conditioning coaches and licensed and certified athletic trainers. The ASCR group works within NASA s Space Medicine Division providing direction and supervision to the astronaut corp with regards to physical readiness throughout all phases of space flight. The ASCR group is overseen by flight surgeons with specialized training in sports medicine or physical medicine and rehabilitation. The goals of the ASCR group include 1) designing and administering strength and conditioning programs that maximize the potential for physical performance while minimizing the rate of injury, 2) providing appropriate injury management and rehabilitation services, 3) collaborating with medical, research, engineering, and mission operations groups to develop and implement safe and effective in-flight exercise countermeasures, and 4) providing a structured, individualized post-flight reconditioning program for long duration crew members. This Panel will present the current approach to the management of musculoskeletal injuries commonly seen within the astronaut corp and will present an overview of the pre-flight physical training, in-flight exercise countermeasures, and post-flight reconditioning program for ISS astronauts.
Atmospheric and Geophysical Sciences Division Program Report, 1988--1989
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1990-06-01
In 1990, the Atmospheric and Geophysical Sciences Division begins its 17th year as a division. As the Division has grown over the years, its modeling capabilities have expanded to include a broad range of time and space scales ranging from hours to decades and from local to global. Our modeling is now reaching out from its atmospheric focus to treat linkages with the oceans and the land. In this report, we describe the Division's goal and organizational structure. We also provide tables and appendices describing the Division's budget, personnel, models, and publications. 2 figs., 1 tab.
Federal Register 2010, 2011, 2012, 2013, 2014
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... Engineering Division, Including B&C Distribution Center, Including On-Site Leased Workers From B&C Services, Inc., Barberton, OH; Amended Certification Regarding Eligibility To Apply for Worker Adjustment... Department of Labor issued a Certification of Eligibility to Apply for Worker Adjustment Assistance on...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
The Medical Institutions of The Johns Hopkins University and The Johns Hopkins University Applied Physics Laboratory have developed a vigorous collaborative program of biomedical research, development, and systems engineering. An important objective of the program is to apply the expertise in engineering, the physical sciences, and systems analysis acquired by APL in defense and space research and development to problems of medical research and health care delivery. This program has grown to include collaboration with many of the clinical and basic science departments of the medical divisions. Active collaborative projects exist in ophthalmology, neurosensory research and instrumentation development, cardiovascular systems,more » patient monitoring, therapeutic and rehabilitation systems, clinical information systems, and clinical engineering. This application of state-of-the-art technology has contributed to advances in many areas of basic medical research and in clinical diagnosis and therapy through improvement of instrumentation, techniques, and basic understanding.« less
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..., Evansville Division, Including On-Site Leased Workers from Andrews International, Inc., Evansville, IN... that workers leased from Andrews International, Inc. were employed on-site at the Evansville, Indiana... findings, the Department is amending this certification to include leased workers from Andrews...
Argonne National Laboratory High Energy Physics Division Email Information Problem Report Service outlook.office365.com. Your mailbox on this server is created along with your ANL Domain account. All of your
, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator structure of baryonic matter in the universe - the matter that makes up stars, planets and human life itself
A physical multifield model predicts the development of volume and structure in the human brain
NASA Astrophysics Data System (ADS)
Rooij, Rijk de; Kuhl, Ellen
2018-03-01
The prenatal development of the human brain is characterized by a rapid increase in brain volume and a development of a highly folded cortex. At the cellular level, these events are enabled by symmetric and asymmetric cell division in the ventricular regions of the brain followed by an outwards cell migration towards the peripheral regions. The role of mechanics during brain development has been suggested and acknowledged in past decades, but remains insufficiently understood. Here we propose a mechanistic model that couples cell division, cell migration, and brain volume growth to accurately model the developing brain between weeks 10 and 29 of gestation. Our model accurately predicts a 160-fold volume increase from 1.5 cm3 at week 10 to 235 cm3 at week 29 of gestation. In agreement with human brain development, the cortex begins to form around week 22 and accounts for about 30% of the total brain volume at week 29. Our results show that cell division and coupling between cell density and volume growth are essential to accurately model brain volume development, whereas cell migration and diffusion contribute mainly to the development of the cortex. We demonstrate that complex folding patterns, including sinusoidal folds and creases, emerge naturally as the cortex develops, even for low stiffness contrasts between the cortex and subcortex.
Ploidy-Dependent Unreductional Meiotic Cell Division in Polyploid Wheat
USDA-ARS?s Scientific Manuscript database
Meiosis includes one round of DNA replication and two successive nuclear divisions, i.e. meiosis I (reductional) and meiosis II (equational). This specialized cell division reduces chromosomes in half and generates haploid gametes in sexual reproduction of eukaryotes. It ensures faithful transmiss...
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2012-01-24
... Administrative Division Including On-Site Leased Workers From JFC Including Teleworkers Located Throughout the United States Reporting to Etters, PA; Amended Certification Regarding Eligibility To Apply for Worker.... 2273, the Department of Labor issued a Certification of Eligibility To Apply for Worker Adjustment...
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2011-06-24
... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-75,033] Indianapolis Metal Center... FEIN 38- 0572515, Including On-Site Leased Workers From Aerotek, Comprehensive Logistics Company, Inc... Metal Center, a division of General Motors Company, including workers whose wages were previously...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-08-08
... amending this certification to include all workers of Delphi Automotive Systems, LLC, Product and Service..., LLC, Products and Service Solutions Division, Including On-Site Leased Workers From Bartech Workforce Management, Kokomo, Indiana; Amended Certification Regarding Eligibility To Apply for Worker Adjustment...
DOT National Transportation Integrated Search
1991-07-01
Oregon must use natural rock deposits that exhibit a wide variety of physical, chemical, and geological properties. To help ensure the quality of these aggregates, the Oregon State Highway Division (OSHD) has specifications regarding test requirement...
Berkeley Lab - Materials Sciences Division
Synthesis Condensed Matter and Materials Physics Scattering and Instrumentation Science Centers Center for Issue 3, March Issue 2, February Issue 1, January A U.S. Department of Energy National Laboratory
Code of Federal Regulations, 2010 CFR
2010-07-01
... to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS MINIMUM WAGE AND... Administrator of the Wage and Hour Division, Employment Standards Administration, U.S. Department of Labor, and includes any official of the Wage and Hour Division who is authorized by the Administrator to perform any...
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2011-06-17
... and Veneer, Colville Tribal Enterprise Corporation Wood Products Division, Including On-Site Workers..., applicable to workers of Colville Indian Plywood and Veneer, Colville Tribal Enterprise Corporation Wood... Wood Products Division, to perform construction, electrical and operational maintenance support...
78 FR 57927 - Credit Risk Retention
Federal Register 2010, 2011, 2012, 2013, 2014
2013-09-20
..., Division of Research & Statistics, (202) 452-2342; or Nikita Pastor, Counsel, (202) 452-3667, Division of... include provisions that strengthen the regulation and supervision of national recognized statistical... delinquencies and foreclosures since 2007. These included features permitting negative amortization, interest...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-07-07
... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-73,555] Hewlett-Packard Company Division of Corporate Administration and Shared Services Including On-Site Leased Workers From Manpower and Including Workers Off-Site From Various States in the United States Reporting to Omaha, NE; Including Employees of Hewlett-Packard Company...
Haugen, Thomas A; Tønnessen, Espen; Seiler, Stephen
2016-01-01
The purpose of this study was to quantify differences in anthropometrical and physical characteristics according to playing position and competitive level in male elite handball. One hundred and seventy-six national team and 1st division players (age 23±4 years, body mass 89±11 kg, body height 188±5 cm) participated in the study. All participants were tested on throwing velocity, 20-meter sprint, countermovement jump, 3000-meter run, 1RM squat and bench press. Back players achieved higher throwing velocities compared to other positions. National team back players achieved higher velocities in set shots (9.4%, P<0.001, d=1.5) and jump shots (8.1%, P<0.001, d=1.5) than 1st division players. Wings sprinted faster than pivots (3.5%, P<0.001, d=1.2) and goalkeepers (5.4%, P<0.001, d=1.2). Wings jumped higher than pivots (13.0%, P<0.001, d=1.0) and goalkeepers (11.4%, P=0.003, d=0.9). National team back players ran faster than 1st division back players over 3000 meters (4.9%, P=0.011, d=0.7). Back players showed better relative strength in squat than pivots (12.1%, P=0.016, d=0.7). Wings had better relative strength in squat that pivots (17.4%, P=0.001, d=1.0) and goalkeepers (13.1%, P=0.016, d=0.8). Pivots were 8.9% stronger than wing players (P=0.044, d=0.7) in 1RM bench press. Varying on-court demands in handball are reflected by different physical and physiological characteristics across playing standard and positions. Physical conditioning of players should therefore be individualized and targeted to solve the position-dependent tasks during play.
Skinfold thickness at 8 common cryotherapy sites in various athletic populations.
Jutte, Lisa S; Hawkins, Jeremy; Miller, Kevin C; Long, Blaine C; Knight, Kenneth L
2012-01-01
Researchers have observed slower cooling rates in thigh muscle with greater overlying adipose tissue, suggesting that cryotherapy duration should be based on the adipose thickness of the treatment site. Skinfold data do not exist for other common cryotherapy sites, and no one has reported how those skinfolds might vary because of physical activity level or sex. To determine the variability in skinfold thickness among common cryotherapy sites relative to sex and activity level (National Collegiate Athletic Association Division I athletes, recreationally active college athletes). Descriptive laboratory study. Field. Three hundred eighty-nine college students participated; 196 Division I athletes (157 men, 39 women) were recruited during preseason physicals, and 193 recreationally active college athletes (108 men, 85 women) were recruited from physical education classes. Three skinfold measurements to within 1 mm were taken at 8 sites (inferior angle of the scapula, middle deltoid, ulnar groove, midforearm, midthigh, medial collateral ligament, midcalf, and anterior talofibular ligament [ATF]) using Lange skinfold calipers. Skinfold thickness in millimeters. We noted interactions among sex, activity level, and skinfold site. Male athletes had smaller skinfold measurements than female athletes at all sites except the ATF, scapula, and ulnar groove (F₇,₂₇₀₂ = 69.85, P < .001). Skinfold measurements were greater for recreationally active athletes than their Division I counterparts at all sites except the ATF, deltoid, and ulnar groove (F₇,₂₇₀₂ = 30.79, P < .001). Thigh skinfold measurements of recreationally active female athletes were the largest, and their ATF skinfolds were the smallest. Skinfold thickness at common cryotherapy treatment sites varied based on level of physical activity and sex. Therefore, clinicians should measure skinfold thickness to determine an appropriate cryotherapy duration.
Skinfold Thickness at 8 Common Cryotherapy Sites in Various Athletic Populations
Jutte, Lisa S.; Hawkins, Jeremy; Miller, Kevin C.; Long, Blaine C.; Knight, Kenneth L.
2012-01-01
Context: Researchers have observed slower cooling rates in thigh muscle with greater overlying adipose tissue, suggesting that cryotherapy duration should be based on the adipose thickness of the treatment site. Skinfold data do not exist for other common cryotherapy sites, and no one has reported how those skinfolds might vary because of physical activity level or sex. Objective: To determine the variability in skinfold thickness among common cryotherapy sites relative to sex and activity level (National Collegiate Athletic Association Division I athletes, recreationally active college athletes). Design: Descriptive laboratory study. Setting: Field. Patients or Other Participants: Three hundred eighty-nine college students participated; 196 Division I athletes (157 men, 39 women) were recruited during preseason physicals, and 193 recreationally active college athletes (108 men, 85 women) were recruited from physical education classes. Intervention(s): Three skinfold measurements to within 1 mm were taken at 8 sites (inferior angle of the scapula, middle deltoid, ulnar groove, midforearm, midthigh, medial collateral ligament, midcalf, and anterior talofibular ligament [ATF]) using Lange skinfold calipers. Main Outcome Measure(s): Skinfold thickness in millimeters. Results: We noted interactions among sex, activity level, and skinfold site. Male athletes had smaller skinfold measurements than female athletes at all sites except the ATF, scapula, and ulnar groove (F7,2702 = 69.85, P < .001). Skinfold measurements were greater for recreationally active athletes than their Division I counterparts at all sites except the ATF, deltoid, and ulnar groove (F7,2702 = 30.79, P < .001). Thigh skinfold measurements of recreationally active female athletes were the largest, and their ATF skinfolds were the smallest. Conclusions: Skinfold thickness at common cryotherapy treatment sites varied based on level of physical activity and sex. Therefore, clinicians should measure skinfold thickness to determine an appropriate cryotherapy duration. PMID:22488282
2018-03-01
Natick, MA 2 Rutgers University, School of Biomedical and Health Sciences, Newark, NJ 3 Research Support Division, USARIEM, Natick, MA 4 Toronto...issue for the U.S. military, as they routinely travel and conduct a range of physical activities around the world within the full spectrum of extreme...level of physical analysis (level 1), for example, clothing can be weighed and inspected for physical attributes. Biophysical analysis (level 2
Argonne Physics Division - Theory Group
Spectroscopic overlaps Nuclear density Nucleon momenta Workshops 2017 1) VI International Workshop on Non experimental groups at Argonne and at other facilities around the world. A brief overview of our program is
10 CFR 75.35 - Material status reports.
Code of Federal Regulations, 2010 CFR
2010-01-01
... physical inventory which is taken as part of the material accounting and control procedures required by... instructions may be obtained from the U.S. Nuclear Regulatory Commission, Division of Fuel Cycle Safety and...
78 FR 56899 - Blood Products Advisory Committee; Notice of Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-09-16
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Accelerator and fusion research division. 1992 Summary of activities
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1992-12-01
This report contains brief discussions on research topics in the following area: Heavy-Ion Fusion Accelerator Research; Magnetic Fusion Energy; Advanced Light Source; Center for Beam Physics; Superconducting Magnets; and Bevalac Operations.
US Army Armor Reference Data in Three Volumes. Volume I. The Army Division.
1981-01-01
dental treatment ASSIGNMENT Organic Armored Division, TOE 17 (d) Optometrc services CAPABILITIES a Provides the following combat service support to a...Support Command. Infantry Division (Mechaniied TOE 29-ft 1 Provides expedient dental treatment CAPABILITIES a Provides medical staff services, including g...administration, and supervision of and f Provides expedient dental treatment plan, mrt division level ol4 uii novel medicaf support rendered by
DOE Office of Scientific and Technical Information (OSTI.GOV)
Park, Jong -Kyu
The 20th workshop on magnetohydrodynamic (MHD) stability control took place November 22–24, 2015, in Princeton Plasma Physics Laboratory (PPPL), following the American Physical Society—Division of Plasma Physics annual meeting on November 16–20 in Savannah, GA. The purpose of this workshop is to stimulate in depth discussion and motivate future research in the areas of MHD stability physics and control of magnetically confined plasmas. Furthermore, the workshop was organized jointly by Auburn University, Columbia University, General Atomics, Princeton Plasma Physics Laboratory, University of Wisconsin-Madison, and the Los Alamos National Laboratory, and under the auspices of the US/Japan Collaboration.
NASA's Physics of the Cosmos and Cosmic Origins Technology Development Programs
NASA Technical Reports Server (NTRS)
Pham, Thai; Seery, Bernard; Ganel, Opher
2016-01-01
The strategic astrophysics missions of the coming decades will help answer the questions "How did our universe begin and evolve?" and "How did galaxies, stars, and planets come to be?" Enabling these missions requires advances in key technologies far beyond the current state of the art. NASA's Physics of the Cosmos (PCOS) and Cosmic Origins (COR) Program Offices manage technology maturation projects funded through the Strategic Astrophysics Technology (SAT) program to accomplish such advances. The PCOS and COR Program Offices, residing at the NASA Goddard Space Flight Center (GSFC), were established in 2011, and serve as the implementation arm for the Astrophysics Division at NASA Headquarters. We present an overview of the Programs' technology development activities and the current technology investment portfolio of 23 technology advancements. We discuss the process for addressing community-provided technology gaps and Technology Management Board (TMB)-vetted prioritization and investment recommendations that inform the SAT program. The process improves the transparency and relevance of our technology investments, provides the community a voice in the process, and promotes targeted external technology investments by defining needs and identifying customers. The Programs' priorities are driven by strategic direction from the Astrophysics Division, which is informed by the National Research Council's (NRC) "New Worlds, New Horizons in Astronomy and Astrophysics" (NWNH) 2010 Decadal Survey report [1], the Astrophysics Implementation Plan (AIP) [2] as updated, and the Astrophysics Roadmap "Enduring Quests, Daring Visions" [3]. These priorities include technology development for missions to study dark energy, gravitational waves, X-ray and inflation probe science, and large far-infrared (IR) and ultraviolet (UV)/optical/IR telescopes to conduct imaging and spectroscopy studies. The SAT program is the Astrophysics Division's main investment method to mature technologies that will be identified by study teams set up to inform the 2020 Decadal Survey process on several large astrophysics mission concepts.
NASA Astrophysics Data System (ADS)
Pham, Thai; Thronson, Harley; Seery, Bernard; Ganel, Opher
2016-07-01
The strategic astrophysics missions of the coming decades will help answer the questions "How did our universe begin and evolve?" "How did galaxies, stars, and planets come to be?" and "Are we alone?" Enabling these missions requires advances in key technologies far beyond the current state of the art. NASA's Physics of the Cosmos2 (PCOS), Cosmic Origins3 (COR), and Exoplanet Exploration Program4 (ExEP) Program Offices manage technology maturation projects funded through the Strategic Astrophysics Technology (SAT) program to accomplish such advances. The PCOS and COR Program Offices, residing at the NASA Goddard Space Flight Center (GSFC), were established in 2011, and serve as the implementation arm for the Astrophysics Division at NASA Headquarters. We present an overview of the Programs' technology development activities and the current technology investment portfolio of 23 technology advancements. We discuss the process for addressing community-provided technology gaps and Technology Management Board (TMB)-vetted prioritization and investment recommendations that inform the SAT program. The process improves the transparency and relevance of our technology investments, provides the community a voice in the process, and promotes targeted external technology investments by defining needs and identifying customers. The Programs' priorities are driven by strategic direction from the Astrophysics Division, which is informed by the National Research Council's (NRC) "New Worlds, New Horizons in Astronomy and Astrophysics" (NWNH) 2010 Decadal Survey report [1], the Astrophysics Implementation Plan (AIP) [2] as updated, and the Astrophysics Roadmap "Enduring Quests, Daring Visions" [3]. These priorities include technology development for missions to study dark energy, gravitational waves, X-ray and inflation probe science, and large far-infrared (IR) and ultraviolet (UV)/optical/IR telescopes to conduct imaging and spectroscopy studies. The SAT program is the Astrophysics Division's main investment method to mature technologies that will be identified by study teams set up to inform the 2020 Decadal Survey process on several large astrophysics mission concepts.
Teaching Cell Division: Basics and Recommendations.
ERIC Educational Resources Information Center
Smith, Mike U.; Kindfield, Ann C. H.
1999-01-01
Presents a concise overview of cell division that includes only the essential concepts necessary for understanding genetics and evolution. Makes recommendations based on published research and teaching experiences that can be used to judge the merits of potential activities and materials for teaching cell division. Makes suggestions regarding the…
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A Vision on the Status and Evolution of HEP Physics Software Tools
DOE Office of Scientific and Technical Information (OSTI.GOV)
Canal, P.; Elvira, D.; Hatcher, R.
2013-07-28
This paper represents the vision of the members of the Fermilab Scientific Computing Division's Computational Physics Department (SCD-CPD) on the status and the evolution of various HEP software tools such as the Geant4 detector simulation toolkit, the Pythia and GENIE physics generators, and the ROOT data analysis framework. The goal of this paper is to contribute ideas to the Snowmass 2013 process toward the composition of a unified document on the current status and potential evolution of the physics software tools which are essential to HEP.
Atmospheric Research 2016 Technical Highlights
NASA Technical Reports Server (NTRS)
Platnick, Steven
2017-01-01
Atmospheric research in the Earth Sciences Division (610) consists of research and technology development programs dedicated to advancing knowledge and understanding of the atmosphere and its interaction with the climate of Earth. The Divisions goals are to improve understanding of the dynamics and physical properties of precipitation, clouds, and aerosols; atmospheric chemistry, including the role of natural and anthropogenic trace species on the ozone balance in the stratosphere and the troposphere; and radiative properties of Earth's atmosphere and the influence of solar variability on the Earth's climate. Major research activities are carried out in the Mesoscale Atmospheric Processes Laboratory, the Climate and Radiation Laboratory, the Atmospheric Chemistry and Dynamics Laboratory, and the Wallops Field Support Office. The overall scope of the research covers an end-to-end process, starting with the identification of scientific problems, leading to observation requirements for remote-sensing platforms, technology and retrieval algorithm development; followed by flight projects and satellite missions; and eventually, resulting in data processing, analyses of measurements, and dissemination from flight projects and missions. Instrument scientists conceive, design, develop, and implement ultraviolet, infrared, optical, radar, laser, and lidar technology to remotely sense the atmosphere. Members of the various laboratories conduct field measurements for satellite sensor calibration and data validation, and carry out numerous modeling activities. These modeling activities include climate model simulations, modeling the chemistry and transport of trace species on regional-to-global scales, cloud resolving models, and developing the next-generation Earth system models. Satellite missions, field campaigns, peer-reviewed publications, and successful proposals are essential at every stage of the research process to meeting our goals and maintaining leadership of the Earth Sciences Division in atmospheric science research. Figure 1.1 shows the 22-year record of peer-reviewed publications and proposals among the various laboratories.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Craig, D.F.
The division was formed in 1946 at the suggestion of Dr. Eugene P. Wigner to attack the problem of the distortion of graphite in the early reactors due to exposure to reactor neutrons, and the consequent radiation damage. It was called the Metallurgy Division and assembled the metallurgical and solid state physics activities of the time which were not directly related to nuclear weapons production. William A. Johnson, a Westinghouse employee, was named Division Director in 1946. In 1949 he was replaced by John H Frye Jr. when the Division consisted of 45 people. He was director during most ofmore » what is called the Reactor Project Years until 1973 and his retirement. During this period the Division evolved into three organizational areas: basic research, applied research in nuclear reactor materials, and reactor programs directly related to a specific reactor(s) being designed or built. The Division (Metals and Ceramics) consisted of 204 staff members in 1973 when James R. Weir, Jr., became Director. This was the period of the oil embargo, the formation of the Energy Research and Development Administration (ERDA) by combining the Atomic Energy Commission (AEC) with the Office of Coal Research, and subsequent formation of the Department of Energy (DOE). The diversification process continued when James O. Stiegler became Director in 1984, partially as a result of the pressure of legislation encouraging the national laboratories to work with U.S. industries on their problems. During that time the Division staff grew from 265 to 330. Douglas F. Craig became Director in 1992.« less
Lockie, Robert G; Moreno, Matthew R; Lazar, Adrina; Orjalo, Ashley J; Giuliano, Dominic V; Risso, Fabrice G; Davis, DeShaun L; Crelling, Jeff B; Lockwood, John R; Jalilvand, Farzad
2018-02-01
Lockie, RG, Moreno, MR, Lazar, A, Orjalo, AJ, Giuliano, DV, Risso, FG, Davis, DL, Crelling, JB, Lockwood, JR, and Jalilvand, F. The physical and athletic performance characteristics of Division I collegiate female soccer players by position. J Strength Cond Res 32(2): 334-343, 2018-Playing positions in soccer can exhibit different movement demands during a match, contributing to variations in physical and performance characteristics. National Collegiate Athletic Association (NCAA) soccer features different substitution rules when compared to FIFA-sanctioned matches, which could influence each players' characteristics. Therefore, this study determined the athletic performance characteristics of Division I female soccer players. Twenty-six players (3 goalkeepers; 8 defenders; 10 midfielders; 5 forwards) from the same squad completed assessments of: lower-body power (vertical and standing broad jump); linear (0-5, 0-10, 0-30 meter [m] sprint intervals) and change-of-direction (pro-agility shuttle; arrowhead change-of-direction speed test) speed; and soccer-specific fitness (Yo-Yo Intermittent Recovery Test [YYIRT] levels 1 and 2). Players were split into position groups, and a Kruskal-Wallis H test with post hoc pairwise analyses (p ≤ 0.05) calculated significant between-group differences. There were no differences in age, height, or body mass between the positions. Midfielders had a faster 0-5 m time compared with the defenders (p = 0.017) and the goalkeepers (p = 0.030). The defenders (p = 0.011) and midfielders (p = 0.013) covered a greater YYIRT2 distance compared with the goalkeepers. There were no other significant between-position differences. Overall, Division I collegiate female players from the same squad demonstrated similar characteristics as measured by soccer-specific performance tests, which could allow for flexibility in position assignments. However, a relatively homogenous squad could also indicate commonality in training prescription, particularly regarding acceleration and high-intensity running. Strength and conditioning coaches may have to consider the specific movement demands of individual positions when training these capacities.
Bridging the Timescales of Single-Cell and Population Dynamics
NASA Astrophysics Data System (ADS)
Jafarpour, Farshid; Wright, Charles S.; Gudjonson, Herman; Riebling, Jedidiah; Dawson, Emma; Lo, Klevin; Fiebig, Aretha; Crosson, Sean; Dinner, Aaron R.; Iyer-Biswas, Srividya
2018-04-01
How are granular details of stochastic growth and division of individual cells reflected in smooth deterministic growth of population numbers? We provide an integrated, multiscale perspective of microbial growth dynamics by formulating a data-validated theoretical framework that accounts for observables at both single-cell and population scales. We derive exact analytical complete time-dependent solutions to cell-age distributions and population growth rates as functionals of the underlying interdivision time distributions, for symmetric and asymmetric cell division. These results provide insights into the surprising implications of stochastic single-cell dynamics for population growth. Using our results for asymmetric division, we deduce the time to transition from the reproductively quiescent (swarmer) to the replication-competent (stalked) stage of the Caulobacter crescentus life cycle. Remarkably, population numbers can spontaneously oscillate with time. We elucidate the physics leading to these population oscillations. For C. crescentus cells, we show that a simple measurement of the population growth rate, for a given growth condition, is sufficient to characterize the condition-specific cellular unit of time and, thus, yields the mean (single-cell) growth and division timescales, fluctuations in cell division times, the cell-age distribution, and the quiescence timescale.
Division of Labor in Colonies of the Eusocial Wasp, Mischocyttarus consimilis
Torres, Viviana O.; Montagna, Thiago S.; Raizer, Josué; Antonialli-Junior, William F.
2012-01-01
The division of labor between castes and the division of labor in workers according to age (temporal polyethism) in social wasps are crucial for maintaining social organization. This study evaluated the division of labor between castes, and the temporal polyethism in workers of Mischocyttarus consimilis Zikán (Hymenoptera: Vespidae). To describe the behavioral repertory of this species, observations were made of 21 colonies, with 100 hours of observations. In order to observe temporal polyethism, each newly emerged wasp was marked with colored dots on the upper area of the thorax. This allowed the observation of behavioral acts performed by each worker from the time of emergence to its death. Through hybrid multidimensional scaling, a clear division between queens and workers could be identified, in which the behaviors of physical dominance and food solicitation characterized the queen caste; while behaviors such as adult—adult trophallaxis, destruction of cells, alarm, foraging for prey, foraging for nectar, and unsuccessful foraging characterized the worker caste. Hybrid multidimensional scaling characterized two groups, with intra—nest activities preferentially accomplished by younger workers, while extra—nest activities such as foraging were executed more frequently by older workers. PMID:22954231
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... Select Staffing, Oxnard, CA; CalAmp Wireless Networks Corporation (CWNC), Including On- Site Leased... Division, including on-site leased workers from Select Staffing, Oxnard, California (TA-W-80,399). The...-site leased workers from Select Staffing, Oxnard, California (TA-W-80,399) and CalAmp Wireless Networks...
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NASA Astrophysics Data System (ADS)
Faller, James E.
Jan, whose 70th birthday and scientific contributions we celebrate today, was a founding (charter) member of the Joint Institute for Laboratory Astrophysics (now JILA). He came in July of 1961 as a National Research Council Postdoctoral Fellow to the National Bureau of Standards (jointing the Atomic Physics Division) in Washington. A year later he came to Boulder with the contingency from that Division who constituted the bulk of the Federal Government's scientific staff contribution to the Joint Institute. Midway during Jan's first year at JILA he was made a regular NBS employee…
2014-10-09
Panelists, from left, Jim Green, director, Planetary Science Division, NASA Headquarters, Washington, Carey Lisse, senior astrophysicist, Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, Kelly Fast, program scientist, Planetary Science Division, NASA Headquarters, Washington, and Padma Yanamandra-Fisher, senior research scientist, Space Science Institute, Rancho Cucamonga Branch, California, are seen during a media briefing where they outlined how space and Earth-based assets will be used to image and study comet Siding Spring during its Sunday, Oct. 19 flyby of Mars, Thursday, Oct. 9, 2014 at NASA Headquarters in Washington. (Photo credit: NASA/Joel Kowsky)
2014-10-09
Jim Green, director, Planetary Science Division, NASA Headquarters, Washington, left, is seen with fellow panelists Carey Lisse, senior astrophysicist, Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, Kelly Fast, program scientist, Planetary Science Division, NASA Headquarters, Washington, and Padma Yanamandra-Fisher, senior research scientist, Space Science Institute, Rancho Cucamonga Branch, California during a media briefing where they outlined how space and Earth-based assets will be used to image and study comet Siding Spring during its Sunday, Oct. 19 flyby of Mars, Thursday, Oct. 9, 2014 at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)
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5 CFR 831.641 - Division of a survivor annuity.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false Division of a survivor annuity. 831.641... REGULATIONS (CONTINUED) RETIREMENT Survivor Annuities Eligibility § 831.641 Division of a survivor annuity. (a... annuities (not including any benefits based on an election of an insurable interest annuity) payable based...
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.../Professional Services, Excluding Workers of the Global Purchasing and Supply Chain Division, Warren, MI...., and Tek Systems, excluding workers of the Global Purchasing and Supply Chain Division, Warren... Purchasing and Supply Chain Division, Warren, Michigan, who became totally or partially separated from...
Ulrich, Daniela; Bjelic-Radisic, Vesna; Höllein, Anna; Tamussino, Karl; Aigmüller, Thomas
2017-01-01
Background Midurethral tapes may cause long-term complications such as voiding dysfunction, groin pain, de novo urgency or mesh erosion, which necessitate a reoperation. There is a paucity of data regarding health related quality of life in patients undergoing tape removal. The aim of the study was to evaluate quality of life (QoL) and objective outcome after midurethral tape division or excision. Methods All patients who underwent a midurethral tape division for voiding difficulties, pain or therapy resistant de novo overactive bladder between 1999 and 2014 were invited for follow-up. A control group with a suburethral tape without division was established in a 1:2 ratio and matched for age, tape used and year of tape insertion. Patients completed the Kings´ Health Questionnaire (KHQ), Incontinence Outcome Questionnaire, Female Sexual Function Index Questionnaire and the Patient Global Impression of Improvement score. Results Tape division or excision was performed in 32 women. Overall, 15 (60%) of 25 women who were alive were available for clinical examination and completed the questionnaires. Tape division was performed for voiding dysfunction (n = 7), overactive bladder (n = 2), mesh extrusion (n = 3) and ongoing pain (n = 3). Median time to tape division/excision was 10 months. Three women in the tape division group had undergone reoperation for stress urinary incontinence (SUI). At a median follow-up of 11 years (IQR 9–13) subjective SUI rate was 53% (8/15 women) in the tape division group and 17% (5/30) in the control group (p = 0.016), with no significant differences in objective SUI rates between groups. With regard to quality of life, the study group had significantly worse scores in the SUI related domains role limitation, physical limitation, severity measures and social limitations (KHQ) compared to the control group. Conclusions Women needing tape division or excision have lower SUI related QoL scores compared to controls mostly because of higher subjective SUI rates. PMID:28346541
NASA Astrophysics Data System (ADS)
2000-01-01
A recent report from the American Institute of Physics has indicated that high school enrolments in physics in the USA have reached their highest level since World War II. Figures for the last decade show an increase in the proportion of high school students taking physics from 20 to 28% (800Â 000 students now), according to Physics Today (October 1999, p 68). The report, Maintaining Momentum: High School Physics for a New Millennium , was based on a 1997 survey of high school physics teachers, the fourth such since the mid-1980s. One conclusion drawn by the report's authors was that a broader range of physics courses is now offered, with increased popularity of `conceptual' physics courses using little algebra or trigonometry over the last ten years. The proportion of students with the strongest maths abilities now taking advanced placement or second-year physics has doubled since 1987. In addition the physics appeal has been noted among high school girls, where the percentage taking physics has risen from 39 to 47% in the ten years to 1997. These female students do not, however, seem to extend their studies into advanced placements or even into teaching physics (women constitute just a quarter of high school teachers of the subject). Sadly the good news is outweighed by the fact that physics still registers the lowest enrolments of all the high school sciences - about half those in chemistry for example. Indeed only around 1% of high school students have taken two years of physics before they graduate, which represents a much lower proportion than in many European and Asian countries. The full report can be viewed at the AIP's statistics division's homepage: www.aip.org/statistics/trends/hstrends.htm whilst summaries of the document are available free from the AIP, Education and Employment Statistics Division, One Physics Ellipse, College Park, MD 20740, USA.
Solid state division progress report, period ending February 29, 1980
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1980-09-01
Research is reported concerning theoretical solid state physics; surface and near-surface properties of solids; defects in solids; transport properties of solids; neutron scattering; crystal growth and characterization; and isotope research materials.
Berkeley Lab - Materials Sciences Division
Synthesis Condensed Matter and Materials Physics Scattering and Instrumentation Science Centers Center for Berkeley National Laboratory 1 Cyclotron Road MS 66R0200 Berkeley CA 94720 510-486-4957 A U.S. Department
Physics Division annual progress report for period ending December 31, 1975. [ORNL
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1976-05-01
Separate abstracts were prepared for each of the data-containing sections of this report. Additional sections deal with publications, titles of papers presented at scientific and technical meetings, personnel, etc. (RWR)
HIPPOCAMPAL ADULT NEUROGENESIS: ITS REGULATION AND POTENTIAL ROLE IN SPATIAL LEARNING AND MEMORY
Lieberwirth, Claudia; Pan, Yongliang; Liu, Yan; Zhang, Zhibin; Wang, Zuoxin
2016-01-01
Adult neurogenesis, defined here as progenitor cell division generating functionally integrated neurons in the adult brain, occurs within the hippocampus of numerous mammalian species including humans. The present review details various endogenous (e.g., neurotransmitters) and environmental (e.g., physical exercise) factors that have been shown to influence hippocampal adult neurogenesis. In addition, the potential involvement of adult-generated neurons in naturally-occurring spatial learning behavior is discussed by summarizing the literature focusing on traditional animal models (e.g., rats and mice), non-traditional animal models (e.g., tree shrews), as well as natural populations (e.g., chickadees and Siberian chipmunk). PMID:27174001
A new gun facility dedicated to performing shock physics and terminal ballistics experiments
NASA Astrophysics Data System (ADS)
Zakraysek, Alan J.; Sutherland, Gerrit T.; Sandusky, Harold D.; Strange, David
2000-04-01
A new building has been constructed to house various powder and single-stage and two-stage gas guns at the Naval Surface Warfare Center, Indian Head Division. Guns previously located at the Naval Research Laboratory and the former White Oak Site of the Naval Surface Warfare Center have been relocated here. Most of the guns are mounted on moveable pedestals to allow them to be shot into various chambers. The facility includes a concrete blast chamber, a target chamber/catch tank for flyer plate experiments, and a target chamber outfitted for terminal ballistics measurements. This paper will discuss the capabilities of this new facility.
Activities of NIST (National Inst. of Standards and Technology)
NASA Technical Reports Server (NTRS)
1992-01-01
The Radiometric Physics Division of the NIST is responsible for the national standards in radiation thermometry, spectroradiometry, photometry, and spectrophotometry; dissemination of these standards by providing measurement services to customers requiring calibrations of the highest accuracy; and conducting fundamental and applied research to develop the scientific basis for future measurement services. Its relevance to EOS/TIR calibration includes calibrating unknown blackbody for radiance using a well-characterized NIST blackbody source by matching the radiant fluxes with an IR radiometer. The TIR Round Robin is used to verify the calibration of the sources that are used for the absolute radiometric calibration of the individual EOS sensors.
A new physically-based windblown dust emission ...
Dust has significant impacts on weather and climate, air quality and visibility, and human health; therefore, it is important to include a windblown dust emission module in atmospheric and air quality models. In this presentation, we summarize our efforts in development of a physics-based windblown dust emission scheme and its implementation in the CMAQ modeling system. The new model incorporates the effect of the surface wind speed, soil texture, soil moisture, and surface roughness in a physically sound manner. Specifically, a newly developed dynamic relation for the surface roughness length in this model is believed to adequately represent the physics of the surface processes involved in the dust generation. Furthermore, careful attention is paid in integrating the new windblown dust module within the CMAQ to ensure that the required input parameters are correctly configured. The new model is evaluated for the case studies including the continental United States and the Northern hemisphere, and is shown to be able to capture the occurrence of the dust outbreak and the level of the soil concentration. We discuss the uncertainties and limitations of the model and briefly describe our path forward for further improvements. The National Exposure Research Laboratory (NERL) Computational Exposure Division (CED) develops and evaluates data, decision-support tools, and models to be applied to media-specific or receptor-specific problem areas. CED uses modeling-based
Physics of the Cosmos (PCOS) Technology Development Program Overview
NASA Astrophysics Data System (ADS)
Pham, B. Thai; Clampin, M.; Werneth, R. L.
2014-01-01
The Physics of the Cosmos (PCOS) Program Office was established in FY11 and resides at the NASA Goddard Space Flight Center (GSFC). The office serves as the implementation arm for the Astrophysics Division at NASA Headquarters for PCOS Program related matters. We present an overview of the Program’s technology management activities and the Program’s technology development portfolio. We discuss the process for addressing community-provided technology needs and the Technology Management Board (TMB)-vetted prioritization and investment recommendations. This process improves the transparency and relevance of technology investments, provides the community a voice in the process, and leverages the technology investments of external organizations by defining a need and a customer. Goals for the PCOS Program envisioned by the National Research Council’s (NRC) “New Worlds, New Horizons in Astronomy and Astrophysics” (NWNH) Decadal Survey report include science missions and technology development for dark energy, gravitational waves, X-ray, and inflation probe science.
NASA Astrophysics Data System (ADS)
Cardall, Christian Y.; Budiardja, Reuben D.
2018-01-01
The large-scale computer simulation of a system of physical fields governed by partial differential equations requires some means of approximating the mathematical limit of continuity. For example, conservation laws are often treated with a 'finite-volume' approach in which space is partitioned into a large number of small 'cells,' with fluxes through cell faces providing an intuitive discretization modeled on the mathematical definition of the divergence operator. Here we describe and make available Fortran 2003 classes furnishing extensible object-oriented implementations of simple meshes and the evolution of generic conserved currents thereon, along with individual 'unit test' programs and larger example problems demonstrating their use. These classes inaugurate the Mathematics division of our developing astrophysics simulation code GENASIS (Gen eral A strophysical Si mulation S ystem), which will be expanded over time to include additional meshing options, mathematical operations, solver types, and solver variations appropriate for many multiphysics applications.
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... Management, Inc., Corporate Service Group, Information Technology (IT) Division, Including On-Site Leased... Information Management, Inc., Corporate Service Group, Information Technology (IT) Division, including on-site... location of Iron Mountain Information Management, Inc., Corporate Service Group, Information Technology (IT...
Rohn, Jennifer L; Patel, Jigna V; Neumann, Beate; Bulkescher, Jutta; Mchedlishvili, Nunu; McMullan, Rachel C; Quintero, Omar A; Ellenberg, Jan; Baum, Buzz
2014-11-03
During animal cell division, an actin-based ring cleaves the cell into two. Problems with this process can cause chromosome missegregation and defects in cytoplasmic inheritance and the partitioning of organelles, which in turn are associated with human diseases. Although much is known about how chromosome segregation is coupled to cell division, the way organelles coordinate their inheritance during partitioning to daughter cells is less well understood. Here, using a high-content live-imaging small interfering RNA screen, we identify Myosin-XIX (Myo19) as a novel regulator of cell division. Previously, this actin-based motor was shown to control the interphase movement of mitochondria. Our analysis shows that Myo19 is indeed localized to mitochondria and that its silencing leads to defects in the distribution of mitochondria within cells and in mitochondrial partitioning at division. Furthermore, many Myo19 RNAi cells undergo stochastic division failure--a phenotype that can be mimicked using a treatment that blocks mitochondrial fission and rescued by decreasing mitochondrial fusion, implying that mitochondria can physically interfere with cytokinesis. Strikingly, using live imaging we also observe the inappropriate movement of mitochondria to the poles of spindles in cells depleted for Myo19 as they enter anaphase. Since this phenocopies the results of an acute loss of actin filaments in anaphase, these data support a model whereby the Myo19 actin-based motor helps to control mitochondrial movement to ensure their faithful segregation during division. The presence of DNA within mitochondria makes their inheritance an especially important aspect of symmetrical cell division. Copyright © 2014 The Authors. Published by Elsevier Inc. All rights reserved.
Rolander, Bo; Wåhlin, Charlotte; Johnston, Venerina; Wagman, Petra; Lindmark, Ulrika
2016-08-01
By 2023, fewer dentists are expected in Sweden, at the same time as the demand for dental care is expected to increase. Older people, in particular, are expected to require more dental health than previous generations. To meet this demand, the public sector dentistry in Sweden is moving towards changes in division of labour among dental professionals, including dentists, dental hygienists and dental nurses. However, the impact of this reallocation on the physical and psychosocial wellbeing of employees is unknown. The aim of this study was to compare workplaces with an equal or larger proportion of dental hygienists than dentists (HDH) with workplaces with a larger proportion of dentists than dental hygienists (HD) on the physical and psychosocial work load, musculoskeletal and psychosomatic disorders and sickness presence. A total of 298 persons employed in the Public Dental Service in a Swedish County Council participated in this study. The medium large clinics HDH reported 85% of employee's with considerably more high psychosocial demands compared to employees in medium HD (53%) and large HD (57%). Employees in medium large clinics HDH also reported sleep problems due to work (25%) compared with employees in medium large clinics HD (6%), large clinics HD (11%) and small clinics HDH (3%). Clinic size does not seem to influence the outcome of the HD and HD clinics to any great extent. Of all employees, about 94-100% reported high precision demands and 78-91% poor work postures.
Parrish, Clyde F
2003-12-01
A series of workshops were sponsored by the Physical Science Division of NASA's Office of Biological and Physical Research to address operational gravity-compliant in-situ resource utilization and life support techologies. Workshop participants explored a Mars simulation study on Devon Island, Canada; the processing of carbon dioxide in regenerative life support systems; space tourism; rocket technology; plant growth research for closed ecological systems; and propellant extraction of planetary regoliths.
An Estimate of the Number of Persons with Visual and Physical Handicaps Eligible for DBPH Services.
ERIC Educational Resources Information Center
Pollet, Dorothy, Comp.
It is estimated that 1,868,000 people are certainly eligible for the services of the Library of Congress Division for the Blind and Physically Handicapped. Between 5,781,500 and 11,384,500 are also possibly eligible. Handicapping conditions which are certainly eligible are severe visual impairment, absence of one or both arms or hands, cerebral…
Disposal of Industrial and Domestic Wastes: Land and Sea Alternatives.
1984-01-01
square kilometers. The rough classification of physical, chemical , and biological processes into near field versus far field and short term versus...contaminants by sedimentation is slowed. Chemical Precipitation and Dissolution During the few minutes of the initial dilution of a buoyant plume ...model. Time and space scales of physical, chemical , and biological processes often provide natural divisions in such modeling. Near -field and far-field
Space Physics Cosmic & Heliospheric Data Evaluation Panel Report
NASA Technical Reports Server (NTRS)
McGuiere, R. E.; Cooper, J.; Gazis, P.; Kurth, W.; Lazarus, A.; McDonald, F.; McNutt, R.; Pyle, R.; Tsurutani, B. T.
1995-01-01
This Cosmic and Heliospheric (C&H) Data Evaluation Panel was charged with the task of identifying and prioritizing important C&H data sets. It was requested to provide C&H community input to the Space Physics Division for a program of revitalizing data holdings. Details and recommendations are provided. Highest C&H priority is assigned to Voyager, Pioneer, Helios, IMP-8, and ISEE-3 data.
40 CFR 52.2630 - Prevention of significant deterioration of air quality.
Code of Federal Regulations, 2010 CFR
2010-07-01
.... Skie, EPA, dated May 18, 1989, Charles A. Collins, Administrator of the Air Quality Divisions stated: * * * The Division, will, as a matter of practice, utilize the “Guideline on Air Quality Models” as revised, including Supplement A, in all PSD permit application reviews. The Division will utilize any future...
47 CFR 73.3617 - Information available on the Internet.
Code of Federal Regulations, 2010 CFR
2010-10-01
... include copies of public notices and texts of recent decisions. The Media Bureau's address is http://www.fcc.gov/mb/; the Audio Division's address is http://www.fcc.gov/mmb/audio; the Video Division's address is http://www.fcc.gov/mb/video; the Policy Division's address is http://www.fcc.gov/mb/policy; the...
NASA Astrophysics Data System (ADS)
Wang, Zhongpeng; Chen, Shoufa
2016-07-01
A physical encryption scheme for discrete Hartley transform (DHT) precoded orthogonal frequency division multiplexing (OFDM) visible-light communication (VLC) systems using frequency domain chaos scrambling is proposed. In the scheme, the chaos scrambling, which is generated by a modified logistic mapping, is utilized to enhance the physical layer of security, and the DHT precoding is employed to reduce of OFDM signal for OFDM-based VLC. The influence of chaos scrambling on peak-to-average power ratio (PAPR) and bit error rate (BER) of systems is studied. The experimental simulation results prove the efficiency of the proposed encryption method for DHT-precoded, OFDM-based VLC systems. Furthermore, the influence of the proposed encryption to the PAPR and BER of systems is evaluated. The experimental results show that the proposed security scheme can protect the DHT-precoded, OFDM-based VLC from eavesdroppers, while keeping the good BER performance of DHT-precoded systems. The BER performance of the encrypted and DHT-precoded system is almost the same as that of the conventional DHT-precoded system without encryption.
Argonne Physics Division - E-906/SeaQuest
measure the quark and antiquark structure of the nucleon and the modifications to that structure which experiment will also examine the modifications to the antiquark structure of the proton from nuclear binding
NASA Astrophysics Data System (ADS)
Wang, Zhongpeng; Zhang, Shaozhong; Chen, Fangni; Wu, Ming-Wei; Qiu, Weiwei
2017-11-01
A physical encryption scheme for orthogonal frequency-division multiplexing (OFDM) visible light communication (VLC) systems using chaotic discrete cosine transform (DCT) is proposed. In the scheme, the row of the DCT matrix is permutated by a scrambling sequence generated by a three-dimensional (3-D) Arnold chaos map. Furthermore, two scrambling sequences, which are also generated from a 3-D Arnold map, are employed to encrypt the real and imaginary parts of the transmitted OFDM signal before the chaotic DCT operation. The proposed scheme enhances the physical layer security and improves the bit error rate (BER) performance for OFDM-based VLC. The simulation results prove the efficiency of the proposed encryption method. The experimental results show that the proposed security scheme not only protects image data from eavesdroppers but also keeps the good BER and peak-to-average power ratio performances for image-based OFDM-VLC systems.
2002 Microgravity Materials Science Conference
NASA Technical Reports Server (NTRS)
Gillies, Donald (Editor); Ramachandran, Narayanan (Editor); Murphy, Karen (Editor); McCauley, Dannah (Editor); Bennett, Nancy (Editor)
2003-01-01
The 2002 Microgravity Materials Science Conference was held June 25-26, 2002, at the Von Braun Center, Huntsville, Alabama. Organized by the Microgravity Materials Science Discipline Working Group, sponsored by the Physical Sciences Research Division, NASA Headquarters, and hosted by NASA Marshall Space Flight Center and member institutions under the Cooperative Research in Biology and Materials Science (CORBAMS) agreement, the conference provided a forum to review the current research and activities in materials science, discuss the envisioned long-term goals, highlight new crosscutting research areas of particular interest to the Physical Sciences Research Division, and inform the materials science community of research opportunities in reduced gravity. An abstracts book was published and distributed at the conference to the approximately 240 people attending, who represented industry, academia, and other NASA Centers. This CD-ROM proceedings is comprised of the research reports submitted by the Principal Investigators in the Microgravity Materials Science program.
Federal Register 2010, 2011, 2012, 2013, 2014
2010-07-19
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77 FR 47669 - Employment and Training Administration
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2012-08-09
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... software and related services including quality assurance and learning products, marketing, product development, marketing and administration. The company reports that on-site leased workers from Managed..., Santa Clara, California, and the Everett, Washington locations of Agilent Technologies, EEsof Division...
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...., Automotive Experience Division, Including Workers Whose Unemployment Insurance (UI) Wages Are Paid Through... Assistance on October 6, 2009, applicable to workers of Johnson Controls, Inc., Automotive Experience... industry. New information shows that Johnson Controls purchased Hoover Universal in 1985 and that some...
Special Issue on the 20th Workshop on MHD Stability Control
Park, Jong -Kyu
2016-11-08
The 20th workshop on magnetohydrodynamic (MHD) stability control took place November 22–24, 2015, in Princeton Plasma Physics Laboratory (PPPL), following the American Physical Society—Division of Plasma Physics annual meeting on November 16–20 in Savannah, GA. The purpose of this workshop is to stimulate in depth discussion and motivate future research in the areas of MHD stability physics and control of magnetically confined plasmas. Furthermore, the workshop was organized jointly by Auburn University, Columbia University, General Atomics, Princeton Plasma Physics Laboratory, University of Wisconsin-Madison, and the Los Alamos National Laboratory, and under the auspices of the US/Japan Collaboration.
NASA Astrophysics Data System (ADS)
Anonymous
2013-07-01
The Geological Society of America's (GSA) new class of medal and award recipients and fellows includes many AGU members. Medal and award recipients are Stephen G. Pollock, University of Southern Maine: GSA Distinguished Service Award; John R. Wheaton, Montana Bureau of Mines and Geology: John C. Frye Award; Clifford A. Jacobs, National Science Foundation (NSF): Outstanding Contributions Award, Geoinformatics Division; Peter Bird, University of California, Los Angeles (emeritus): George P. Woollard Award, Geophysics Division; Chunmiao Zheng, University of Alabama: O. E. Meinzer Award, Hydrogeology Division; Gerhard Wörner, Georg August Universität Göttingen: Distinguished Geologic Career Award, Mineralogy, Geochemistry, Petrology, and Volcanology Division; Alan D. Howard, University of Virginia: G. K. Gilbert Award, Planetary Geology Division; Michael E. Perkins, University of Utah: Kirk Bryan Award for Research Excellence, Quaternary Geology and Geomorphology Division; and Peter J. Hudleston, University of Minnesota: Career Contribution Award, Structural Geology and Tectonics Division.
Draftsmen Create a Blade Template in the Materials and Stresses Building
1953-04-21
Draftsmen in the Materials and Stresses Building at the National Advisory Committee for Aeronautics (NACA) Lewis Flight Propulsion Laboratory create a template for a compressor using actual compressor blades. The Compressor and Turbine Division contained four sections of researchers dedicated to creating better engine components. The Materials and Thermodynamics Division studied the strength, durability, heat transfer characteristics, and physical composition of various materials. The two divisions were important to the research and development of new aircraft engines. The constant battle to increase the engine’s thrust while decreasing its overall weight resulted in additional stress on jet engine components, particularly compressors. As speed and maneuverability were enhanced, the strain on the engines and inlets grew. For decades NACA Lewis researchers continually sought to improve compressor blade design, develop stronger composite materials, and minimize flutter and inlet distortions.
Climate-mediated dance of the plankton
NASA Astrophysics Data System (ADS)
Behrenfeld, Michael J.
2014-10-01
Climate change will unquestionably influence global ocean plankton because it directly impacts both the availability of growth-limiting resources and the ecological processes governing biomass distributions and annual cycles. Forecasting this change demands recognition of the vital, yet counterintuitive, attributes of the plankton world. The biomass of photosynthetic phytoplankton, for example, is not proportional to their division rate. Perhaps more surprising, physical processes (such as deep vertical mixing) can actually trigger an accumulation in phytoplankton while simultaneously decreasing their division rates. These behaviours emerge because changes in phytoplankton division rates are paralleled by proportional changes in grazing, viral attack and other loss rates. Here I discuss this trophic dance between predators and prey, how it dictates when phytoplankton biomass remains constant or achieves massive blooms, and how it can determine even the sign of change in ocean ecosystems under a warming climate.
Physical layer security in fiber-optic MIMO-SDM systems: An overview
NASA Astrophysics Data System (ADS)
Guan, Kyle; Cho, Junho; Winzer, Peter J.
2018-02-01
Fiber-optic transmission systems provide large capacities over enormous distances but are vulnerable to simple eavesdropping attacks at the physical layer. We classify key-based and keyless encryption and physical layer security techniques and discuss them in the context of optical multiple-input-multiple-output space-division multiplexed (MIMO-SDM) fiber-optic communication systems. We show that MIMO-SDM not only increases system capacity, but also ensures the confidentiality of information transmission. Based on recent numerical and experimental results, we review how the unique channel characteristics of MIMO-SDM can be exploited to provide various levels of physical layer security.
NASA Astrophysics Data System (ADS)
Jin, Wei; Zhang, Chongfu; Yuan, Weicheng
2016-02-01
We propose a physically enhanced secure scheme for direct detection-orthogonal frequency division multiplexing-passive optical network (DD-OFDM-PON) and long reach coherent detection-orthogonal frequency division multiplexing-passive optical network (LRCO-OFDM-PON), by employing noise-based encryption and channel/phase estimation. The noise data generated by chaos mapping are used to substitute training sequences in preamble to realize channel estimation and frame synchronization, and also to be embedded on variable number of key-selected randomly spaced pilot subcarriers to implement phase estimation. Consequently, the information used for signal recovery is totally hidden as unpredictable noise information in OFDM frames to mask useful information and to prevent illegal users from correctly realizing OFDM demodulation, and thereby enhancing resistance to attackers. The levels of illegal-decryption complexity and implementation complexity are theoretically discussed. Through extensive simulations, the performances of the proposed channel/phase estimation and the security introduced by encrypted pilot carriers have been investigated in both DD-OFDM and LRCO-OFDM systems. In addition, in the proposed secure DD-OFDM/LRCO-OFDM PON models, both legal and illegal receiving scenarios have been considered. These results show that, by utilizing the proposed scheme, the resistance to attackers can be significantly enhanced in DD-OFDM-PON and LRCO-OFDM-PON systems without performance degradations.
PREFACE: 14th General Conference of the Condensed Matter Division
NASA Astrophysics Data System (ADS)
de Segovia, José L.; Flores, F.; García-Moliner, F.
1994-01-01
This volume contains the proceedings of the 14th General Conference of the Condensed Matter Division, GCCMD-14, held on 28-31 March 1994, at the Faculty of Civil Engineering of the Polytechnical University of Madrid. The publication contains the Plenary and Invited Lectures of those authors who agreed to publish their presentations. The meeting was organized by the Spanish Vacuum Society, ASEVA, under the auspices of the Condensed Matter Division of the European Physical Society, CMD-EPS. The Conference was attended by 466 participants mostly from Europe. The emphasis of the Conference was mainly on: Semiconductors and Insulators Surfaces and Interfaces Liquids and Statistical Mechanics Magnetism and Metals Macromolecules and Chemical Physics The 554 contributions were presented as 6 plenary lectures, 67 invited lectures, 140 oral presentation and 341 poster presentation, in five parallel sessions. The guest Editors are grateful to those authors who sent their contribution for the publication, to the Organizing Committee, to the International Advisory and Programme Committee and to the Local Committee for their excellent work. We also wish to thank those colleagues who took on the hard task of helping in refereeing the papers. It is also a pleasure to thank the Physica Scripta Editor and Editorial Board of Physica Scripta.
Town Meeting on Plasma Physics at the National Science Foundation
NASA Astrophysics Data System (ADS)
2015-11-01
We invite you to the Town Meeting on the role of the National Science Foundation (NSF) in supporting basic and applied research in Plasma Physics in the U.S. The overarching goal of NSF is to promote the progress of science and to enable training of the next generation of scientists and engineers at US colleges and universities. In this context, the role of the NSF Physics Division in leading the nearly 20 year old NSF/DOE Partnership in Basic Plasma Science and Engineering serves as an example of the long history of NSF support for basic plasma physics research. Yet, the NSF interest in maintaining a healthy university research base in plasma sciences extends across the Foundation. A total of five NSF Divisions are participating in the most recent Partnership solicitation, and a host of other multi-disciplinary and core programs provide opportunities for scientists to perform research on applications of plasma physics to Space & Solar Physics, Astrophysics, Accelerator Science, Material Science, Plasma Medicine, and many sub-disciplines within Engineering. This Town Meeting will provide a chance to discuss the full range of relevant NSF funding opportunities, and to begin a conversation on the present and future role of NSF in stewarding basic plasma science and engineering research at US colleges and universities. We would like to particularly encourage early career scientists and graduate students to participate in this Town Meeting, though everyone is invited to join what we hope to be a lively discussion.
Model-based reasoning in the physics laboratory: Framework and initial results
NASA Astrophysics Data System (ADS)
Zwickl, Benjamin M.; Hu, Dehui; Finkelstein, Noah; Lewandowski, H. J.
2015-12-01
[This paper is part of the Focused Collection on Upper Division Physics Courses.] We review and extend existing frameworks on modeling to develop a new framework that describes model-based reasoning in introductory and upper-division physics laboratories. Constructing and using models are core scientific practices that have gained significant attention within K-12 and higher education. Although modeling is a broadly applicable process, within physics education, it has been preferentially applied to the iterative development of broadly applicable principles (e.g., Newton's laws of motion in introductory mechanics). A significant feature of the new framework is that measurement tools (in addition to the physical system being studied) are subjected to the process of modeling. Think-aloud interviews were used to refine the framework and demonstrate its utility by documenting examples of model-based reasoning in the laboratory. When applied to the think-aloud interviews, the framework captures and differentiates students' model-based reasoning and helps identify areas of future research. The interviews showed how students productively applied similar facets of modeling to the physical system and measurement tools: construction, prediction, interpretation of data, identification of model limitations, and revision. Finally, we document students' challenges in explicitly articulating assumptions when constructing models of experimental systems and further challenges in model construction due to students' insufficient prior conceptual understanding. A modeling perspective reframes many of the seemingly arbitrary technical details of measurement tools and apparatus as an opportunity for authentic and engaging scientific sense making.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-24
.... The Department has determined that these workers were sufficiently under the control of the subject..., Stevens Point, Wisconsin Division, Including On-Site Leased Workers From ABR, Aerotek, and Manpower, Stevens Point, WI; Amended Certification Regarding Eligibility To Apply for Worker Adjustment Assistance...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-08-27
... these workers were sufficiently under the control of the subject firm to be considered leased workers...; Springfield, Missouri Division Including On-site Leased Workers From Penmac Personnel Services and GCA Services Group Springfield, Missouri; Amended Certification Regarding Eligibility to Apply for Worker...
The Association for Educational Communications and Technology: Division of School Media Specialists.
ERIC Educational Resources Information Center
Miller, Mary Mock
1993-01-01
Reports on the Division of School Media Specialists of the Association for Educational Communications and Technology (AECT). Highlights include the mission statement; publications; board members and committee chairs; activities at the AECT conferences; and future concerns, including public relations and marketing plans for media specialists and…
Federal Register 2010, 2011, 2012, 2013, 2014
2010-01-06
... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-62,282] National Starch and Chemical Company Specialty Starches Division Including On-Site Leased Workers From Page Employment, Island... Adjustment Assistance on December 13, 2007, applicable to workers of National Starch and Chemical Company...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-17
... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-81,299] Kohler Company, Malvern Division, Including On-Site Leased Workers From Manpower Staffing and Dow Cleaning Services, Malvern, AR; Amended Certification Regarding Eligibility To Apply for Worker Adjustment Assistance In accordance with...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-07-14
... America Division, Including Workers From Steelcase University Also Known as Steelcase Learning Center, a..., also known as Steelcase Learning Center, is a subsidiary of Steelcase, Inc. Since Steelcase University, also known as Steelcase Learning Center, a subsidiary of Steelcase, Inc. operates internally with...
2013-06-13
Hepburn Attack Force, commanded by Rear Admiral A. W. Johnson. The Navy force included the New York, Arkansas, Wyoming, Atares , Destroyer Squadron...force included the New York, Arkansas, Wyoming, Atares , Destroyer Squadron Ten (8 destroyers), Cruiser Division Eight, Destroyer Division Four, five
Federal Register 2010, 2011, 2012, 2013, 2014
2010-09-07
... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-73,762] Rain Bird Corporation, Arizona Molding Division Including On-Site Leased Workers From Lumea Staffing Services, Tri-State Staffing Services and Remedy Staffing (AKA Select Staffing) Tucson, AZ; Amended Certification Regarding Eligibility...
NASA Astrophysics Data System (ADS)
Brecher, Kenneth
2006-12-01
Project LITE (Light Inquiry Through Experiments) is a materials, software, and curriculum development project. It focuses on light, optics, color and visual perception. According to two recent surveys of college astronomy faculty members, these are among the topics most often included in the large introductory astronomy courses. The project has aimed largely at the design and implementation of hands-on experiences for students. However, it has also included the development of lecture demonstrations that employ novel light sources and materials. In this presentation, we will show some of our new lecture demonstrations concerning geometrical and physical optics, fluorescence, phosphorescence and polarization. We have developed over 200 Flash and Java applets that can be used either by teachers in lecture settings or by students at home. They are all posted on the web at http://lite.bu.edu. For either purpose they can be downloaded directly to the user's computer or run off line. In lecture demonstrations, some of these applets can be used to control the light emitted by video projectors to produce physical effects in materials (e.g. fluorescence). Other applets can be used, for example, to demonstrate that the human percept of color does not have a simple relationship with the physical frequency of the stimulating source of light. Project LITE is supported by Grant #DUE-0125992 from the NSF Division of Undergraduate Education.
Péloquin, Claudie; Doering, Thomas; Alley, Stephanie; Rebar, Amanda
2017-10-01
Disparities in health perspectives between Indigenous and non-Indigenous populations are major concerns in many of the world's well-developed nations. Indigenous populations are largely less healthy, more prone to chronic diseases, and have an earlier overall mortality than non-Indigenous populations. Low levels of physical activity (PA) contribute to the high levels of disease in Indigenous Australians. Qualitative analysis of structured one-on-one interviews discussing PA in a regional setting. Participants were 12 Indigenous Australian adults, and 12 non-Indigenous Australian adults matched on age, sex, and basketball division. Most participants reported engaging in regular exercise; however, the Indigenous group reported more barriers to PA. These factors included cost, time management and environmental constraints. The physical facilitators identified by our Indigenous sample included social support, intrinsic motivation and role modelling. Findings describe individual and external factors that promote or constraint PA as reported by Indigenous Australian adults. Results indicate that Indigenous people face specific barriers to PA when compared to a non-Indigenous sample. Implications for public health: This study is the first to compare the perspective of Indigenous Australians to a matched group of non-Indigenous Australians and provides useful knowledge to develop public health programs based on culturally sensitive data. © 2017 The Authors.
Reinventing Fractions and Division as They Are Used in Algebra: The Power of Preformal Productions
ERIC Educational Resources Information Center
Peck, Frederick; Matassa, Michael
2016-01-01
In this paper, we explore algebra students' mathematical realities around fractions and division, and the ways in which students reinvented mathematical productions involving fractions and division. We find that algebra students' initial realities do not include the fraction-as-quotient sub-construct. This can be problematic because in algebra,…
ERIC Educational Resources Information Center
Kara, Yilmaz; Yesilyurt, Selami
2008-01-01
The purpose of this study was to investigate the effects of tutorial and edutainment design of instructional software programs related to the "cell division" topic on student achievements, misconceptions and attitudes. An experimental research design including the cell division achievement test (CAT), the cell division concept test (CCT) and…
Federal Register 2010, 2011, 2012, 2013, 2014
2010-04-29
..., Corrigan Company, and Murphy Company, Fenton, MO; Amended Certification Regarding Eligibility To Apply for... of Chrysler LLC, St. Louis South Assembly Division, Fenton, Missouri. The notice was published in the... employed on-site by the Fenton, Missouri location of Chrysler LLC, St. Louis South Assembly Division. The...
The stem cell division theory of cancer.
López-Lázaro, Miguel
2018-03-01
All cancer registries constantly show striking differences in cancer incidence by age and among tissues. For example, lung cancer is diagnosed hundreds of times more often at age 70 than at age 20, and lung cancer in nonsmokers occurs thousands of times more frequently than heart cancer in smokers. An analysis of these differences using basic concepts in cell biology indicates that cancer is the end-result of the accumulation of cell divisions in stem cells. In other words, the main determinant of carcinogenesis is the number of cell divisions that the DNA of a stem cell has accumulated in any type of cell from the zygote. Cell division, process by which a cell copies and separates its cellular components to finally split into two cells, is necessary to produce the large number of cells required for living. However, cell division can lead to a variety of cancer-promoting errors, such as mutations and epigenetic mistakes occurring during DNA replication, chromosome aberrations arising during mitosis, errors in the distribution of cell-fate determinants between the daughter cells, and failures to restore physical interactions with other tissue components. Some of these errors are spontaneous, others are promoted by endogenous DNA damage occurring during quiescence, and others are influenced by pathological and environmental factors. The cell divisions required for carcinogenesis are primarily caused by multiple local and systemic physiological signals rather than by errors in the DNA of the cells. As carcinogenesis progresses, the accumulation of DNA errors promotes cell division and eventually triggers cell division under permissive extracellular environments. The accumulation of cell divisions in stem cells drives not only the accumulation of the DNA alterations required for carcinogenesis, but also the formation and growth of the abnormal cell populations that characterize the disease. This model of carcinogenesis provides a new framework for understanding the disease and has important implications for cancer prevention and therapy. Copyright © 2018 Elsevier B.V. All rights reserved.
Ground-water conditions in Utah, spring of 2007
Burden, Carole B.; Allen, David V.; Danner, M.R.; Enright, Michael; Cillessen, J.L.; Gerner, S.J.; Eacret, Robert J.; Downhour, Paul; Slaugh, Bradley A.; Swenson, Robert L.; Howells, James H.; Christiansen, Howard K.; Fisher, Martel J.
2007-01-01
This is the forty-fourth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Department of Natural Resources, Division of Water Resources and Division of Water Rights, and the Utah Department of Environmental Quality, Division of Water Quality, provide data to enable interested parties to maintain awareness of changing ground-water conditions.This report, like the others in the series, contains information on well construction, ground-water withdrawal from wells, water-level changes, precipitation, streamflow, and chemical quality of water. Information on well construction included in this report refers only to wells constructed for new appropriations of ground water. Supplementary data are included in reports of this series only for those years or areas which are important to a discussion of changing ground-water conditions and for which applicable data are available.This report includes individual discussions of selected significant areas of ground-water development in the State for calendar year 2006. Most of the reported data were collected by the U.S. Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Resources and Division of Water Rights, and the Utah Department of Environmental Quality, Division of Water Quality. This report is available online at http://www.waterrights.utah. gov/ and http://ut.water.usgs.gov/newUTAH/GW2007.pdf.
Ground-water conditions in Utah, spring of 2008
Burden, Carole B.; Allen, David V.; Danner, M.R.; Fisher, Martel J.; Freeman, Michael L.; Downhour, Paul; Wilkowske, C.D.; Eacret, Robert J.; Enright, Michael; Swenson, Robert L.; Howells, James H.; Christiansen, Howard K.
2008-01-01
This is the forty-fifth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Department of Natural Resources, Division of Water Resources and Division of Water Rights, and the Utah Department of Environmental Quality, Division of Water Quality, provide data to enable interested parties to maintain awareness of changing ground-water conditions.This report, like the others in the series, contains information on well construction, ground-water withdrawal from wells, water-level changes, precipitation, streamflow, and chemical quality of water. Information on well construction included in this report refers only to wells constructed for new appropriations of ground water. Supplementary data are included in reports of this series only for those years or areas which are important to a discussion of changing ground-water conditions and for which applicable data are available.This report includes individual discussions of selected significant areas of ground-water development in the State for calendar year 2007. Most of the reported data were collected by the U.S. Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Resources and Division of Water Rights, and the Utah Department of Environmental Quality, Division of Water Quality. This report is available online at http://www.waterrights.utah.gov/techinfo/ and http://ut.water.usgs.gov/publications/GW2008.pdf.
Ground-water conditions in Utah, spring of 2009
Burden, Carole B.; Allen, David V.; Rowland, Ryan C.; Fisher, Martel J.; Freeman, Michael L.; Downhour, Paul; Nielson, Ashley; Eacret, Robert J.; Myers, Andrew; Slaugh, Bradley A.; Swenson, Robert L.; Howells, James H.; Christiansen, Howard K.
2009-01-01
This is the forty-sixth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Department of Natural Resources, Division of Water Resources and Division of Water Rights, and the Utah Department of Environmental Quality, Division of Water Quality, provide data to enable interested parties to maintain awareness of changing ground-water conditions. This report, like the others in the series, contains information on well construction, ground-water withdrawal from wells, water-level changes, precipitation, streamflow, and chemical quality of water. Information on well construction included in this report refers only to wells constructed for new appropriations of ground water. Supplementary data are included in reports of this series only for those years or areas which are important to a discussion of changing ground-water conditions and for which applicable data are available.This report includes individual discussions of selected significant areas of ground-water development in the State for calendar year 2008. Most of the reported data were collected by the U.S. Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Resources and Division of Water Rights, and the Utah Department of Environmental Quality, Division of Water Quality. This report is available online at http://www.waterrights. utah.gov/techinfo/ and http://ut.water.usgs.gov/publications/ GW2009.pdf.
NASA Astrophysics Data System (ADS)
Smith, A.; Siegel, Edward Carl-Ludwig
2011-03-01
Numbers: primality/indivisibility/non-factorization versus compositeness/divisibility/ factorization, often in tandem but not always, provocatively close analogy to nuclear-physics: (2 + 1)=(fusion)=3; (3+1)=(fission)=4[=2 x 2]; (4+1)=(fusion)=5; (5 +1)=(fission)=6[=2 x 3]; (6 + 1)=(fusion)=7; (7+1)=(fission)=8[= 2 x 4 = 2 x 2 x 2]; (8 + 1) =(non: fission nor fusion)= 9[=3 x 3]; then ONLY composites' Islands of fusion-INstability: 8, 9, 10; then 14, 15, 16, ... Could inter-digit Feshbach-resonances exist??? Possible applications to: quantum-information/ computing non-Shore factorization, millennium-problem Riemann-hypotheses proof as Goodkin BEC intersection with graph-theory "short-cut" method: Rayleigh(1870)-Polya(1922)-"Anderson"(1958)-localization, Goldbach-conjecture, financial auditing/accounting as quantum-statistical-physics; ...abound!!! Watkins [www.secamlocal.ex.ac.uk/people/staff/mrwatkin/] "Number-Theory in Physics" many interconnections: "pure"-maths number-theory to physics including Siegel [AMS Joint Mtg.(2002)-Abs.# 973-60-124] inversion of statistics on-average digits' Newcomb(1881)-Weyl(14-16)-Benford(38)-law to reveal both the quantum and BEQS (digits = bosons = digits:"spinEless-boZos"). 1881 1885 1901 1905 1925 < 1927, altering quantum-theory history!!!
Lippold, Melissa A.; Davis, Kelly D.; McHale, Susan M.; Almeida, David M.
2015-01-01
Considerable evidence documents linkages between parental knowledge of youth activities and youth risky behavior. We extended this research to determine whether parental knowledge was associated with youth physical health, including reports of physical symptoms (e.g., headaches, stomachaches) and a biomarker of hypothalamic pituitary adrenocortical (HPA) axis functioning (i.e., salivary cortisol levels). Participants were children of employees in the Information Technology division of a Fortune 500 company (N = 132, Mean Age Youth = 13.39 years, 55% female) who participated in a daily diary study. Data were collected via telephone calls on eight consecutive evenings. On four study days, cortisol samples were collected at 4 time points (waking, 30 min after waking, before dinner, bedtime). Multi-level models revealed that, at the between-person level, youth whose parents had higher average knowledge about their activities, exhibited lower bedtime cortisol levels. Furthermore, at the within-person level, on days when parents displayed more knowledge than usual (relative to their own eight-day average), youth had lower before-dinner cortisol than usual. Linkages between average parental knowledge and physical health symptoms were moderated by youth age: Younger but not older adolescents whose parents were more knowledgeable had fewer physical health symptoms, on average. A next step is to identify the processes that underlie these associations. PMID:26751757
Re-Conceptualizing Command and Control
2002-01-01
systems. Having discussed the four quadrants of the authority-responsibility surface, we are now in a posi- tion to reintegrate the competency dimension and...feet higher up, who in his turn was monitored by the division commander in the next highest chopper … The point is not to argue that micro-management is...into the following four general class- es: physical, intellectual, emotional and interpersonal. For most militaries, physical competency is a pre
Evaluation of the Military Functional Assessment Program: Inter rater Reliability of Task Scores
2017-09-19
return-to-duty. Performance on the tasks is rated by a non-commissioned officer (NCO), occupational therapist, physical therapist, and mental health ...and additional ratings are provided on a subset of the tasks by an occupational therapist (OT), physical therapist (PT), and mental health (MH...3National Intrepid Center of Excellence United States Army Aeromedical Research Laboratory Aircrew Health and Performance Division September 2017
Mechanical influences in bacterial morphogenesis and cell division
NASA Astrophysics Data System (ADS)
Sun, Sean
2010-03-01
Bacterial cells utilize a ring-like organelle (the Z-ring) to accomplish cell division. The Z-ring actively generates a contractile force and influences cell wall growth. We will discuss a general model of bacterial morphogenesis where mechanical forces are coupled to the growth dynamics of the cell wall. The model suggests a physical mechanism that determines the shapes of bacteria cells. The roles of several bacterial cytoskeletal proteins and the Z-ring are discussed. We will also explore molecular mechanisms of force generation by the Z-ring and how cells can generate mechanical forces without molecular motors.
2014-10-09
Dwayne Brown, NASA public affairs officer, left, moderates a media briefing where panelist, seated from left, Jim Green, director, Planetary Science Division, NASA Headquarters, Washington, Carey Lisse, senior astrophysicist, Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, Kelly Fast, program scientist, Planetary Science Division, NASA Headquarters, Washington, and Padma Yanamandra-Fisher, senior research scientist, Space Science Institute, Rancho Cucamonga Branch, California, outlined how space and Earth-based assets will be used to image and study comet Siding Spring during its Sunday, Oct. 19 flyby of Mars, Thursday, Oct. 9, 2014 at NASA Headquarters in Washington. (Photo credit: NASA/Joel Kowsky)
Origin of the Wang-Sheeley-Arge solar wind model
NASA Astrophysics Data System (ADS)
Sheeley, Neil R., Jr.
2017-03-01
A correlation between solar wind speed at Earth and the amount of magnetic field line expansion in the corona was verified in 1989 using 22 years of solar and interplanetary observations. We trace the evolution of this relationship from its birth 15 years earlier in the Skylab era to its current use as a space weather forecasting technique. This paper is the transcript of an invited talk at the joint session of the Historical Astronomy Division and the Solar Physics Division of the American Astronomical Society during its 224th meeting in Boston, MA, on 3 June 2014.
Kovacevic, Ismar; Bao, Zhirong
2018-01-01
C. elegans cell divisions that produce an apoptotic daughter cell exhibit Daughter Cell Size Asymmetry (DCSA), producing a larger surviving daughter cell and a smaller daughter cell fated to die. Genetic screens for mutants with defects in apoptosis identified several genes that are also required for the ability of these divisions to produce daughter cells that differ in size. One of these genes, ham-1, encodes a putative transcription factor that regulates a subset of the asymmetric cell divisions that produce an apoptotic daughter cell. In a survey of C. elegans divisions, we found that ham-1 mutations affect primarily anterior/posterior divisions that produce a small anterior daughter cell. The affected divisions include those that generate an apoptotic cell as well as those that generate two surviving cells. Our findings suggest that HAM-1 primarily promotes DCSA in a certain class of asymmetric divisions. PMID:29668718
NASA Astrophysics Data System (ADS)
Vavylonis, Dimitrios
2009-03-01
I will describe my experience in developing an interdisciplinary biophysics course addressed to students at the upper undergraduate and graduate level, in collaboration with colleagues in physics and biology. The students had a background in physics, biology and engineering, and for many the course was their first exposure to interdisciplinary topics. The course did not depend on a formal knowledge of equilibrium statistical mechanics. Instead, the approach was based on dynamics. I used diffusion as a universal ``long time'' law to illustrate scaling concepts. The importance of statistics and proper counting of states/paths was introduced by calculating the maximum accuracy with which bacteria can measure the concentration of diffuse chemicals. The use of quantitative concepts and methods was introduced through specific biological examples, focusing on model organisms and extremes at the cell level. Examples included microtubule dynamic instability, the search and capture model, molecular motor cooperativity in muscle cells, mitotic spindle oscillations in C. elegans, polymerization forces and propulsion of pathogenic bacteria, Brownian ratchets, bacterial cell division and MinD oscillations.
The Laboratory for Terrestrial Physics
NASA Technical Reports Server (NTRS)
2003-01-01
The Laboratory for Terrestrial Physics is dedicated to the advancement of knowledge in Earth and planetary science, by conducting innovative research using space technology. The Laboratory's mission and activities support the work and new initiatives at NASA's Goddard Space Flight Center (GSFC). The Laboratory's success contributes to the Earth Science Directorate as a national resource for studies of Earth from Space. The Laboratory is part of the Earth Science Directorate based at the GSFC in Greenbelt, MD. The Directorate itself is comprised of the Global Change Data Center (GCDC), the Space Data and Computing Division (SDCD), and four science Laboratories, including Laboratory for Terrestrial Physics, Laboratory for Atmospheres, and Laboratory for Hydrospheric Processes all in Greenbelt, MD. The fourth research organization, Goddard Institute for Space Studies (GISS), is in New York, NY. Relevant to NASA's Strategic Plan, the Laboratory ensures that all work undertaken and completed is within the vision of GSFC. The philosophy of the Laboratory is to balance the completion of near term goals, while building on the Laboratory's achievements as a foundation for the scientific challenges in the future.
Nguyen, H Bryant; Thomson, Carey C; Kaminski, Naftali; Schnapp, Lynn M; Madison, J Mark; Glenny, Robb W; Dixon, Anne E
2018-02-27
An academic medical career traditionally revolves around patient care, teaching, and scholarly projects. Thus, when an opportunity for a leadership role arises, such as Division Chief, the new leader is often unprepared with little or no formal leadership training. In this article, academic leaders of the Association of Pulmonary, Critical Care and Sleep Division Directors reviewed several leadership concepts adapted from the business sector and applied years of their experience to aid new division chiefs with their first day on the job. The first 90 days are highlighted to include accomplishing the early wins, performing a division Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis, establishing division rapport, redefining the division infrastructure, avoiding conflicts, and managing their relationship with the department chair. The five levels of leadership applicable to academic medicine are discussed: position, permission, production, people, and pinnacle. Finally, emotional intelligence and behavior styles crucial to leadership success are reviewed.
The Scientific Legacy of Ugo Fano
NASA Astrophysics Data System (ADS)
Inokuti, Mitio
2001-04-01
In 1934 Fano received a Sc. D. degree in mathematics at University of Turin, Italy (the city of his birth in 1912). He was then led to physics by his cousin Guilio Racah, and received postdoctoral training from Fermi at Rome and from Heisenberg at Leipzig. He worked at institutions near Washington, D. C. during the war, and joined the staff of the National Bureau of Standards in 1946. He became a professor of physics at The University of Chicago in 1966. His contributions to radiation physics, atomic and molecular physics, and statistical physics are extensive and outstanding. Recognition includes many honors such as the Fermi Award by the DOE, and terms such as the Beutler-Fano profile of certain spectral lines, the Fano factor characterizing the fluctuations of the radiation-induced ionization, the Fano-Lichten mechanism for inelastic atomic collisions, and the Fano effect leading to spin-polarized photoelectrons. His work follows a style inherited from Fermi and is characterized by incisive insight into the physics behind experimental data, penetrating mathematical analysis, and close communications with many colleagues. Because he took a leading role in developing new areas of research and in nurturing young scientists, his influence now permeates many topics of physics. They include far uv and soft x-ray spectroscopy with synchrotron radiation and fundamental radiological physics, both stemming from his time at NBS, as well as multi-channel quantum-defect theory and hyperspherical-coordinate approach, both pioneered at Chicago. Fuller accounts of his life and science are seen in Inokuti [1], in Rau [2], and in a forthcoming special issue of Physics Essays in his honor. The present work is supported by U. S. DOE, Office of Science, Nuclear Physics Division, under Contract No. W-31-109-Eng-38. References 1. M. Inokuti, in Fundamental Processes of Atomic Dynamics, J. S. Briggs et al. (eds.), (Plenum, New York, 1988), p. 1. 2. A. R. P. Rau, Comments At. Mol. Phys. 33, 181 (1997).
NASA Astrophysics Data System (ADS)
The effective integration of processes, systems, and procedures used in the production of aerospace systems using computer technology is managed by the Integration Technology Division (MTI). Under its auspices are the Information Management Branch, which is actively involved with information management, information sciences and integration, and the Implementation Branch, whose technology areas include computer integrated manufacturing, engineering design, operations research, and material handling and assembly. The Integration Technology Division combines design, manufacturing, and supportability functions within the same organization. The Processing and Fabrication Division manages programs to improve structural and nonstructural materials processing and fabrication. Within this division, the Metals Branch directs the manufacturing methods program for metals and metal matrix composites processing and fabrication. The Nonmetals Branch directs the manufacturing methods programs, which include all manufacturing processes for producing and utilizing propellants, plastics, resins, fibers, composites, fluid elastomers, ceramics, glasses, and coatings. The objective of the Industrial Base Analysis Division is to act as focal point for the USAF industrial base program for productivity, responsiveness, and preparedness planning.
Division of Biological and Medical Research annual report, 1979. [Lead abstract
DOE Office of Scientific and Technical Information (OSTI.GOV)
Rosenthal, M.W.
1979-01-01
Separate abstracts were prepared for 14 of the 20 sections included in this progress report. The other 6 sections include: introductory statements by the division director; descriptions of the animal, computer, electron microscope, and radiation support facilities; a listing of the educational activities, divisional seminars, and oral presentations by staff members; and divisional staff publications. An author index to the report is included. (ERB)
Federal Register 2010, 2011, 2012, 2013, 2014
2012-11-26
... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-81,880: TA-A-81,880A] RG Steel Wheeling, LLC, Wheeling Office, A Division Of RG Steel, LLC, Including On-Site Leased Workers From Pro Unlimited and Green Energy Initiatives LLC, Including Workers Whose Wages Were Reported Through Severstal Wheeling, Wheeling, WV: Mountain State...
Materials Division research and technology accomplishments for FY 87 and plans for FY 88
NASA Technical Reports Server (NTRS)
Brinkley, Kay L.
1988-01-01
The research program of the Materials Division is presented as FY 87 accomplishments and FY 88 plans. The accomplishments for each Branch are highlighted and plans are outlined. Publications of the Division are included by Branch. This material will be useful in program coordination with other government organizations, universities, and industries in areas of mutual interest.
ERIC Educational Resources Information Center
Dissemination and Assessment Center for Bilingual Education, Austin, TX.
This is one of a series of student booklets designed for use in a bilingual mathematics program in grades 6-8. The general format is to present each page in both Spanish and English. The mathematical topics in this booklet include multiplication and division. (MK)
Materials Division research and technology accomplishments for FY 89 and plans for FY 90
NASA Technical Reports Server (NTRS)
Brinkley, Kay L.
1990-01-01
The research program of the Materials Division is presented as FY-89 accomplishments and FY-90 plans. The accomplishments for each Branch are highlighted and plans are outlined. Publications of the Division are included by Branch. This material will be useful in program coordination with other government organizations, universities, and industries in areas of mutual interest.
Susan L. Stout; Matthew B. Dickinson; Gregory J. Nowacki
2012-01-01
The Hot Continental Division is one of the larger ecoregions within the continental United States (McNab and Avers 1994), incorporating portions of 19 States and extending from the eastern seacoast to areas west of the Mississippi River (chapter 1). The Division includes the Eastern (Oceanic) and Eastern (Continental) Broadleaf Forest Provinces and two Mountain...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-07-07
... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-71,116] Russell Brands, LLC..., 2009, applicable to workers of Russell Brands, LLC, Fabrics Division, a subsidiary of Fruit of the Loom... applicable to TA-W-71,116 is hereby issued as follows: All workers of Russell Brands, LLC, Fabric Division, a...
ERIC Educational Resources Information Center
Archer, David Eric
2010-01-01
Scope and Method of Study: The purpose of this study was to discover the meanings female intercollegiate athletes ascribe to their experiences preceding exit from NCAA Division I competition. The study sample included five Division I female intercollegiate athletes. Four of these attended a large public research institution in the Southern Plains…
Materials Division research and technical accomplishments for FY 1988 and plans for FY 1989
NASA Technical Reports Server (NTRS)
Brinkley, Kay L.
1989-01-01
The research program of the Materials Division is presented as FY-88 accomplishments and FY-89 plans. The accomplishments for each Branch are highlighted and plans are outlined. Publications of the Division are included by Branch. This material is useful in program coordination with other government organizations, universities, and industry in areas of mutual interest.