Slowly rotating supercompact Schwarzschild stars

NASA Astrophysics Data System (ADS)

Posada, Camilo

2017-06-01

The Schwarzschild interior solution, or 'Schwarzschild star', which describes a spherically symmetric homogeneous mass with a constant energy density, shows a divergence in pressure when the radius of the star reaches the Schwarzschild-Buchdahl bound. Recently, Mazur and Mottola showed that this divergence is integrable through the Komar formula, inducing non-isotropic transverse stresses on a surface of some radius R0. When this radius approaches the Schwarzschild radius Rs = 2 M, the interior solution becomes one of negative pressure evoking a de Sitter space-time. This gravitational condensate star, or gravastar, is an alternative solution to the idea of a black hole as the ultimate state of gravitational collapse. Using Hartle's model to calculate equilibrium configurations of slowly rotating masses, we report results of surface and integral properties for a Schwarzschild star in the very little studied region Rs < R < (9/8)Rs. We found that in the gravastar limit, the angular velocity of the fluid relative to the local inertial frame tends to zero, indicating rigid rotation. Remarkably, the normalized moment of inertia I/MR2 and the mass quadrupole moment Q approach the corresponding values for the Kerr metric to second order in Ω. These results provide a solution to the problem of the source of a slowly rotating Kerr black hole.

Reviews in Modern Astronomy: Vol. 16: The Cosmic Circuit of Matter

NASA Astrophysics Data System (ADS)

Schielicke, Reinhard E.

2003-08-01

The 16th volume in the annual series on recent developments and scientific progress in astronomy and astrophysics contains thirteen invited reviews presented during the International Scientific Conference of the Society on "The Cosmic Circuit of Matter", held in Berlin, Germany. Readers also learn about the lecture on the behaviour of stars by infrared interferometry given by Charles H. Townes, Berkeley, USA who was awarded the Karl Schwarzschild medal 2002. Further contributions on the topic provide, among other, the latest results on the Solar atmosphere, formation of stars, substellar objects, galaxies and clusters of galaxies.

Schwarzschild, Karl (1873-1916)

NASA Astrophysics Data System (ADS)

Murdin, P.

2000-11-01

Mathematical physicist, born in Frankfurt am Main, Germany, at first worked on celestial mechanics, including POINCARÉ's theory of rotating bodies, the tidal deformation of moons and LAPLACE's origin of the solar system. He became professor at Göttingen and Potsdam. He wrote on relativity and quantum theory. He early on proposed that space was non-Euclidean, giving a lower limit for the radius of...

Schwarzschild camera

NASA Technical Reports Server (NTRS)

1980-01-01

The fabrication procedures for the primary and secondary mirrors for a Schwarzschild camera are summarized. The achieved wave front for the telescope was 1/2 wave at .63 microns. Interferograms of the two mirrors as a system are given and the mounting procedures are outlined.

Reviews in Modern Astronomy 28: From the First Quasars to Life-Bearing Planets - From Accretion Physics to Astrobiology

NASA Astrophysics Data System (ADS)

Berlepsch, Regina v.

2016-07-01

The current issue of AN is Volume 28 of the Reviews in Modern Astronomy and presents the Karl Schwarzschild Award Lecture, the Ludwig Bierman n Award Lecture and the Doctoral Thesis Award Lecture given at the 88th Annual International Scientific Meeting of the Astronomische Gesellschaft held in Kiel, Germany, September 14-18, 2015. It was the fifth time that Kiel hosted a meeting of the AG, the first one was in 1887. In 2015 the fall meeting was a part of the celebrations of the 350th anniversary of the Christiana Albertina University Kiel in 1665. For astronomers around the globe, the astrophysical group is well known for the Kieler Schule and its fundamental contributions to the physics of stellar atmospheres. Based on the work by Albrecht Unsöld during his tenure of 41 years as active researcher and lecturer (and many more after becoming emeritus), the quantitative analysis of stellar atmospheres and the reliable determination of chemical abundances is nowadays a cornerstone of modern astrophysics. Even more, it is of ground-laying importance for the whole field, from the characterization of exoplanets and their host stars to the properties of galaxies at cosmic dawn. The meeting was guided by the theme "From the First Quasars to Life-Bearing Planets -- From Accretion Physics to Astrobiology". The meeting was attended by almost 300 participants from around the world. The Karl Schwarzschild Medal 2015 of the Astronomische Gesellschaft was awarded to Professor Immo Appenzeller, Heidelberg. His lecture with the title "Astronomical technology -- the past and the future" opened the meeting. The talk presented by the Ludwig Biermann Award winner 2015, Dr. Ivan Minchev, Potsdam, dealt with the topic "Constraining the Milky Way assembly history with Galactic Archaeology". The Doctoral Thesis Award 2015 was awarded to Dr. Cornelia Müller (Würzburg). In her lecture she discussed the subject "Multiwavelength and parsec-scale properties of extragalactic Jets". The AG

Quantum corrected Schwarzschild thin-shell wormhole

NASA Astrophysics Data System (ADS)

Jusufi, Kimet

2016-11-01

Recently, Ali and Khalil (Nucl Phys B, 909, 173-185, 2016), based on Bohmian quantum mechanics, derived a quantum corrected version of the Schwarzschild metric. In this paper, we construct a quantum corrected Schwarzschild thin-shell wormhole (QSTSW) and investigate the stability of this wormhole. First we compute the surface stress at the wormhole throat by applying the Darmois-Israel formalism to the modified Schwarzschild metric and show that exotic matter is required at the throat to keep the wormhole stable. We then study the stability analysis of the wormhole by considering phantom-energy for the exotic matter, generalized Chaplygin gas (GCG), and the linearized stability analysis. It is argued that quantum corrections can affect the stability domain of the wormhole.

Initial data sets for the Schwarzschild spacetime

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gomez-Lobo, Alfonso Garcia-Parrado; Kroon, Juan A. Valiente; School of Mathematical Sciences, Queen Mary, University of London, Mile End Road, London E1 4NS

2007-01-15

A characterization of initial data sets for the Schwarzschild spacetime is provided. This characterization is obtained by performing a 3+1 decomposition of a certain invariant characterization of the Schwarzschild spacetime given in terms of concomitants of the Weyl tensor. This procedure renders a set of necessary conditions--which can be written in terms of the electric and magnetic parts of the Weyl tensor and their concomitants--for an initial data set to be a Schwarzschild initial data set. Our approach also provides a formula for a static Killing initial data set candidate--a KID candidate. Sufficient conditions for an initial data set tomore » be a Schwarzschild initial data set are obtained by supplementing the necessary conditions with the requirement that the initial data set possesses a stationary Killing initial data set of the form given by our KID candidate. Thus, we obtain an algorithmic procedure of checking whether a given initial data set is Schwarzschildean or not.« less

Solar Observations on Magneto-Convection

DTIC Science & Technology

1989-05-31

Technical Library National Solar Observatory Sunspot, NM 88349 Karl - Schwarzschild -Strasse 1 8046 Garching bei Mundhen Solar Observations On Magneto...Schmidt, Hermann-Ulrich Schmidt, Hans-Christoph Thomas (eds.) Max-Planck-Institut fir Physik und Astrophysik Institut fiur Astrophysik Karl ... Schwarzschild -St-. 1 D-8046 Garching, FklG 14TIS CRiA.&l DTIC TA. U~Jar,iou8:ed B ......... ... Distribution I -- Availability COcý----- Avail and or Dist special

Reviews in Modern Astronomy: Vol. 15: JENAM 2001: Astronomy with Large Telescopes from Ground and Space

NASA Astrophysics Data System (ADS)

Schielicke, Reinhard E.

2002-11-01

This 15th volume in the annual series on recent developments and scientific progress in astronomy and astrophysics contains fourteen invited reviews presented during the Joint European and National Astronomical Meeting JENAM 2001, held in Munich, Germany. Readers also learn about the lecture on macro- and microscopic views of nearby galaxies given by Keiichi Kodaira, Japan, who was awarded the Karl Schwarzschild medal 2001. Further contributions on the topic provide the latest results on the search for extra-solar planets, formation of stars and galaxies, physics of active galactic nuclei, as well as new telescopes and sensor technologies for various wavelengths.

Sir Karl Popper and Education

ERIC Educational Resources Information Center

McNamara, D. R.

1978-01-01

Sir Karl Popper is one of England's most distinguished contemporary philosophers and it is surprising that his thought has not permeated and informed educational discussion. This paper suggests that educationists have much to learn from Karl Popper's writings and explores ways in which his ideas can illuminate and advance discussion about…

Multiple Stars in the Field

DTIC Science & Technology

2008-01-01

Southern Observatory Karl - Schwarzschild -Str. 2 85748 Garching Germany :--. ,") 1 ’< ’ I () ___ I Andrei Tokovinin Inter-American Observatory...Chile Monika Petr-Gotzens European Southern Observatory Karl -Schwarschild-Str. 2 85748 Garching Germany Series Editor Bruno Leibundgut European

Mean-field dynamos: The old concept and some recent developments. Karl Schwarzschild Award Lecture 2013

NASA Astrophysics Data System (ADS)

Rädler, K.-H.

This article elucidates the basic ideas of electrodynamics and magnetohydrodynamics of mean fields in turbulently moving conducting fluids. It is stressed that the connection of the mean electromotive force with the mean magnetic field and its first spatial derivatives is in general neither local nor instantaneous and that quite a few claims concerning pretended failures of the mean-field concept result from ignoring this aspect. In addition to the mean-field dynamo mechanisms of α2 and α Ω type several others are considered. Much progress in mean-field electrodynamics and magnetohydrodynamics results from the test-field method for calculating the coefficients that determine the connection of the mean electromotive force with the mean magnetic field. As an important example the memory effect in homogeneous isotropic turbulence is explained. In magnetohydrodynamic turbulence there is the possibility of a mean electromotive force that is primarily independent of the mean magnetic field and labeled as Yoshizawa effect. Despite of many efforts there is so far no convincing comprehensive theory of α quenching, that is, the reduction of the α effect with growing mean magnetic field, and of the saturation of mean-field dynamos. Steps toward such a theory are explained. Finally, some remarks on laboratory experiments with dynamos are made.

Reviews in Modern Astronomy 12, Astronomical Instruments and Methods at the turn of the 21st Century

NASA Astrophysics Data System (ADS)

Schielicke, Reinhard E.

The yearbook series Reviews in Modern Astronomy of the Astronomische Gesellschaft (AG) was established in 1988 in order to bring the scientific events of the meetings of the society to the attention of the worldwide astronomical community. Reviews in Modern Astronomy is devoted exclusively to the invited Reviews, the Karl Schwarzschild Lectures, the Ludwig Biermann Award Lectures, and the highlight contributions from leading scientists reporting on recent progress and scientific achievements at their respective research institutes. Volume 12 continues the yearbook series with 16 contributions which were presented during the International Scientific Conference of the AG on ``Astronomical Instruments and Methods at the Turn of the 21st Century'' at Heidelberg from September 14 to 19, 1998

[Medical history impressions of Karl Marx 1983].

PubMed

Kaiser, W

1983-12-15

Excerpts of his London era first published on the occasion of the Karl Marx testimonials of 1983 gave rise to extend the memory of the fundamental achievements of Karl Marx to medico-historical aspects. In this case Karl Marx paid special attention to the working and living conditions of the working class and an analysis of his adequate statements and records shows multifarious details which give a research basis also for the history of medicine. Marx and Engels had friendly contacts with several physicians who shared the opinions of the two classics: their way of life is shown in the most important points.

Astronomical Observations by Speckle Interferometry.

DTIC Science & Technology

1986-06-12

commonly -been noted [Heintz (101)] that it was Karl *, Schwarzchild who iui 1895 [ Schwarzschild (190)] made the first measure- ments of binary stars...J. Lett 163. Michelson, A A, Pease. F. G. 1921. Ap. 280: L23 J. 53: 249 190. Schwarzschild . K. 1896. Astron. Nadir. 164. Morgan. B. L., lieddoes. 1

Direct Detection of the Close Companion of Polaris With the Hubble Space Telescope

DTIC Science & Technology

2008-09-01

Italy 4 European Southern Observatory, Karl - Schwarzschild -Str. 2, 85748 Garching bei München, Germany; bono@mporzio.astro.it 5 Harvard University, 60...the late Karl Kamper to the study of Polaris were crucial to this work. REFERENCES Anderson, J., & King, I. R. 2004, Instrument Science Report ACS 2004

Dynamical Mass of the O-Type Supergiant in Zeta Orionis A

DTIC Science & Technology

2013-01-01

A. Hummel1, Th. Rivinius2, M.-F. Nieva3,4, O. Stahl5, G. van Belle6, and R. T. Zavala7 1 European Southern Observatory, Karl - Schwarzschild -Str. 2...85748 Garching, Germany e-mail: chummel@eso.org 2 European Southern Observatory, Casilla 19001, Santiago 19, Chile 3 Dr. Karl Remeis–Sternwarte & ECAP

The East German Research Landscape in Transition Part A: Status and Transition

DTIC Science & Technology

1993-03-02

traditional Meteorologisches Observatorium Potsdam, and Prof. Siegfried Marx of the Karl - Schwarzschild -Observatorium Tautenburg. G804L32-00-01 07 APR...Telefax: +37 (091) 53409 or 51959 The Ministry is on Breiter Weg (the former Karl -Marx StraBe) north of Wilhelm Pieck Allee, near Alter Markt. Non...27 69 Karl StraBe 4 D/W-6900 Heidelberg Telephone: +49 (6221) 54-3265 Telefax: +49 (6221) 54-3355 Akademie der Wissenschaften und der Literatur Mainz

Isgur-Karl model revisited

DOE Office of Scientific and Technical Information (OSTI.GOV)

Galeta, Leonardo; Pirjol, Dan; Schat, Carlos

2009-12-01

We show how to match the Isgur-Karl model to the spin-flavor quark operator expansion used in the 1/N{sub c} studies of the nonstrange negative parity L=1 excited baryons. Using the transformation properties of states and interactions under the permutation group S{sub 3} we are able to express the operator coefficients as overlap integrals, without making any assumption on the spatial dependence of the quark wave functions. The general mass operator leads to parameter free mass relations and constraints on the mixing angles that are valid beyond the usual harmonic oscillator approximation. The Isgur-Karl model with harmonic oscillator wave functions providesmore » a simple counterexample that demonstrates explicitly that the alternative operator basis for the 1/N{sub c} expansion for excited baryons recently proposed by Matagne and Stancu is incomplete.« less

Aplanatic Two-Surface Systems: The Optics Of Our Grandfathers

NASA Astrophysics Data System (ADS)

Krautter, Martin

1986-10-01

Karl Schwarzschild (1873 - 1916)1 has set up the 2-mirror systems as a 2-parameter mani-fold. He constructed them for primary aplanatism with conic section surfaces, and for finite aplanatism with numerically determined surfaces of revolution. Developing from the still older 2-paraboloid telescopes, conceived by Marin Mersenne, the systems since designed fill three domains of existence. The grazing incidence systems too (the Wolter-Schwarz-schild systems) have their loci on this map. Martin Linnemann (born 1880), student of Karl Schwarzschild, designed the first lenses, made aplanatic with two general surfaces of revolution2. For later authors remained only to vary image scale to non-zero values, and to adapt the design method to computer use.

Exact Harmonic Metric for a Uniformly Moving Schwarzschild Black Hole

NASA Astrophysics Data System (ADS)

He, Guan-Sheng; Lin, Wen-Bin

2014-02-01

The harmonic metric for Schwarzschild black hole with a uniform velocity is presented. In the limit of weak field and low velocity, this metric reduces to the post-Newtonian approximation for one moving point mass. As an application, we derive the dynamics of particle and photon in the weak-field limit for the moving Schwarzschild black hole with an arbitrary velocity. It is found that the relativistic motion of gravitational source can induce an additional centripetal force on the test particle, which may be comparable to or even larger than the conventional Newtonian gravitational force.

Reviews in Modern Astronomy: Vol. 17: The Sun and Planetary Systems - Paradigms for the Universe

NASA Astrophysics Data System (ADS)

Schielicke, Reinhard E.

2004-09-01

Volume 17 continues the Reviews of Modern Astronomy with fourteen invited reviews and Highlight Contributions which were presented during the International Scientific Conference of the Society on "The Sun and Planetary Systems", held at Freiburg, Germany, September 15 to 20, 2003. The Karl Schwarzschild medal 2003 was awarded to Professor Erika Boehm-Vitense, Seattle, USA. Her lecture with the title "What Hyades F Stars tell us about Heating Mechanisms in Stellar Transition Layers and Coronae" opened the meeting. The talk presented by the Ludwig Biermann-Prize winner 2003, Dr Luis R. Bellot Rubio, Freiburg i. Br., Germany, dealt with the topic "The Structure of Sunspots as Inferred from Spectropolarimetric Measurements". Other contributions to the meeting published in this volume discuss, among other subjects, solar physics, formation of planets and interferometric imaging in astronomy.

Gauge invariant perturbations of the Schwarzschild spacetime

NASA Astrophysics Data System (ADS)

Thompson, Jonathan E.; Chen, Hector; Whiting, Bernard F.

2017-09-01

Beginning with the pioneering work of Regge and Wheeler (1957 Phys. Rev. 108 1063), there have been many studies of perturbations away from the Schwarzschild spacetime background. In particular several authors Moncrief (1974 Ann. Phys. 88 323), Sachs (1964 Relativity, Groups and Topology (New York: Gordon and Breach)) and Brizuela et al (2007 Phys. Rev. D 76 024004) have investigated gauge invariant quantities of the Regge-Wheeler (RW) formalism. Steven Detweiler also investigated perturbations of Schwarzschild in his own formalism, introducing his own gauge choice which he denoted the ‘easy (EZ) gauge’, and which he was in the process of adapting for use in the second-order self-force problem. We present here a compilation of some of his working results, arising from notes for which there seems to have been no manuscript in preparation. In particular, we outline Detweiler’s formalism, list the gauge invariant quantities he used, and explain the process by which he found them.

Research Investigation Directed Toward Extending the Useful Range of the Electromagnetic Spectrum.

DTIC Science & Technology

1985-12-31

0.33) or a Schwarzschild reflector (N.A. ..- - 1.25, x 36) directly onto the GaAs (100) substrate housed in a stainless steel, 4-window cell. The cell...Department of Energy under contract .. DE-AC-02-78ER04940. (1) G. Karl , P. Kruus and J. Polanyl, J. Chem. Phys. 46,224, (1967). .- (2) G. Karl , P. Kruus, J...Chem. 39, 2244, (1961). (7) G. Karl and J. Polanyl, J. Chem Phys. 38, 271, (1963). (8) H. Okabe, Photochemistrv-of Small Molecules, New York, J

"Unmapped Territories": The Career of Karl Kroeber (1926-2009)

ERIC Educational Resources Information Center

Ruoff, A. Lavonne Brown

2012-01-01

Jean Taylor Kroeber, widow of Karl Kroeber, has granted permission for "SAIL" to reprint his "Address to Columbia College Students Elected to the Phi Beta Kappa Society, 18 May 2009" and "An Interview with Karl Kroeber." Conducted by Michael Mallick, the interview was published in the newsletter of the Department of English and Comparative…

[Karl Sudhoff].

PubMed

Kästner, Ingrid

2013-01-01

In 1914, from 6th May to 18th October, the International Exposition of book Industry and Graphic Arts (BUGRA) took place in Leipzig, then the world capital of books. Karl Sudhoff, director of the Leipzig Institute of the History of Medicine, was appointed by the executive committee of the BURGA to organize the special exhibition "Three Millennia of Graphic Arts in the Service of Science". The paper shows, following Sudhoff's own descriptions and new archival sources, the conceptual design and the contents of this exposition set up by Sudhoff.

The Schwarzschild effect of the dosimetry film Kodak EDR 2.

PubMed

Djouguela, A; Kollhoff, R; Rubach, A; Harder, D; Poppe, B

2005-11-07

The magnitude of the Schwarzschild effect or failure of the reciprocity law has been experimentally investigated for the dosimetry film EDR 2 from Kodak. When the dose rate applied to achieve a given dose was reduced by a factor of 12, the net optical density was reduced by up to 5%. The clinical importance of this effect is negligible as long as the films are calibrated at a value of the dose rate approximately representative of the dose rates occurring in the target volume, but in target regions of strongly reduced dose rate the Schwarzschild effect should be allowed for by a correction of the net optical density.

Particle dynamics in the original Schwarzschild metric

NASA Astrophysics Data System (ADS)

Fimin, N. N.; Chechetkin, V. M.

2016-04-01

The properties of the original Schwarzschild metric for a point gravitating mass are considered. The laws of motion in the corresponding space-time are established, and the transition from the Schwarzschildmetric to the metric of a "dusty universe" are studied. The dynamics of a system of particles in thr post-Newtonian approximation are analyzed.

Space–time and spatial geodesic orbits in Schwarzschild geometry

NASA Astrophysics Data System (ADS)

Resca, Lorenzo

2018-05-01

Geodesic orbit equations in the Schwarzschild geometry of general relativity reduce to ordinary conic sections of Newtonian mechanics and gravity for material particles in the non-relativistic limit. On the contrary, geodesic orbit equations for a proper spatial submanifold of Schwarzschild metric at any given coordinate-time correspond to an unphysical gravitational repulsion in the non-relativistic limit. This demonstrates at a basic level the centrality and critical role of relativistic time and its intimate pseudo-Riemannian connection with space. Correspondingly, a commonly popularised depiction of geodesic orbits of planets as resulting from the curvature of space produced by the Sun, represented as a rubber sheet dipped in the middle by the weighing of that massive body, is mistaken and misleading for the essence of relativity, even in the non-relativistic limit.

Course Lectures Abstracts of Participants Fellows Project Reports

DTIC Science & Technology

1990-10-01

Whitehead and Karl R. Helfrich 188 A Long Laboratory Salt Finger George Veronis 189 Applications of Compactly Supported Wavelets to the Numerical Solution...when it is negative, we have instability. This criterion for the onset of convection is called the Schwarzschild criterion, after one of the many who...and Astrophys. 85, 263-264 (1980) [14] Schwarzschild M., Harm R., Ap.J. 184, 5-8 (1973) [15) Shibahashi H., Osaki Y., Unno W., Publ. Astron. Soc

Conventional and modified Schwarzschild objective for EUV lithography: design relations

NASA Astrophysics Data System (ADS)

Bollanti, S.; di Lazzaro, P.; Flora, F.; Mezi, L.; Murra, D.; Torre, A.

2006-12-01

The design criteria of a Schwarzschild-type optical system are reviewed in relation to its use as an imaging system in an extreme ultraviolet lithography setup. Both the conventional and the modified reductor imaging configurations are considered, and the respective performances, as far as the geometrical resolution in the image plane is concerned, are compared. In this connection, a formal relation defining the modified configuration is elaborated, refining a rather naïve definition presented in an earlier work. The dependence of the geometrical resolution on the image-space numerical aperture for a given magnification is investigated in detail for both configurations. So, the advantages of the modified configuration with respect to the conventional one are clearly evidenced. The results of a semi-analytical procedure are compared with those obtained from a numerical simulation performed by an optical design program. The Schwarzschild objective based system under implementation at the ENEA Frascati Center within the context of the Italian FIRB project for EUV lithography has been used as a model. Best-fit functions accounting for the behaviour of the system parameters vs. the numerical aperture are reported; they can be a useful guide for the design of Schwarzschild objective type optical systems.

Schwarzschild-de Sitter spacetimes, McVittie coordinates, and trumpet geometries

NASA Astrophysics Data System (ADS)

Dennison, Kenneth A.; Baumgarte, Thomas W.

2017-12-01

Trumpet geometries play an important role in numerical simulations of black hole spacetimes, which are usually performed under the assumption of asymptotic flatness. Our Universe is not asymptotically flat, however, which has motivated numerical studies of black holes in asymptotically de Sitter spacetimes. We derive analytical expressions for trumpet geometries in Schwarzschild-de Sitter spacetimes by first generalizing the static maximal trumpet slicing of the Schwarzschild spacetime to static constant mean curvature trumpet slicings of Schwarzschild-de Sitter spacetimes. We then switch to a comoving isotropic radial coordinate which results in a coordinate system analogous to McVittie coordinates. At large distances from the black hole the resulting metric asymptotes to a Friedmann-Lemaître-Robertson-Walker metric with an exponentially-expanding scale factor. While McVittie coordinates have another asymptotically de Sitter end as the radial coordinate goes to zero, so that they generalize the notion of a "wormhole" geometry, our new coordinates approach a horizon-penetrating trumpet geometry in the same limit. Our analytical expressions clarify the role of time-dependence, boundary conditions and coordinate conditions for trumpet slices in a cosmological context, and provide a useful test for black hole simulations in asymptotically de Sitter spacetimes.

Schwarzschild and Kerr solutions of Einstein's field equation: An Introduction

NASA Astrophysics Data System (ADS)

Heinicke, Christian; Hehl, Friedrich W.

2015-12-01

Starting from Newton's gravitational theory, we give a general introduction into the spherically symmetric solution of Einstein's vacuum field equation, the Schwarzschild(-Droste) solution, and into one specific stationary axially symmetric solution, the Kerr solution. The Schwarzschild solution is unique and its metric can be interpreted as the exterior gravitational field of a spherically symmetric mass. The Kerr solution is only unique if the multipole moments of its mass and its angular momentum take on prescribed values. Its metric can be interpreted as the exterior gravitational field of a suitably rotating mass distribution. Both solutions describe objects exhibiting an event horizon, a frontier of no return. The corresponding notion of a black hole is explained to some extent. Eventually, we present some generalizations of the Kerr solution.

Schwarzschild solution from Weyl transverse gravity

NASA Astrophysics Data System (ADS)

Oda, Ichiro

2017-01-01

We study classical solutions in the Weyl-transverse (WTDiff) gravity. The WTDiff gravity is invariant under both the local Weyl (conformal) transformation and the volume preserving diffeomorphisms (Diff) (transverse diffeomorphisms (TDiff)) and is known to be equivalent to general relativity at least at the classical level. In particular, we find that in a general spacetime dimension, the Schwarzschild metric is a classical solution in the WTDiff gravity when it is expressed in the Cartesian coordinate system.

a Virtual Trip to the Schwarzschild-De Sitter Black Hole

NASA Astrophysics Data System (ADS)

Bakala, Pavel; Hledík, Stanislav; Stuchlík, Zdenĕk; Truparová, Kamila; Čermák, Petr

2008-09-01

We developed realistic fully general relativistic computer code for simulation of optical projection in a strong, spherically symmetric gravitational field. Standard theoretical analysis of optical projection for an observer in the vicinity of a Schwarzschild black hole is extended to black hole spacetimes with a repulsive cosmological constant, i.e, Schwarzschild-de Sitter (SdS) spacetimes. Influence of the cosmological constant is investigated for static observers and observers radially free-falling from static radius. Simulation includes effects of gravitational lensing, multiple images, Doppler and gravitational frequency shift, as well as the amplification of intensity. The code generates images of static observers sky and a movie simulations for radially free-falling observers. Techniques of parallel programming are applied to get high performance and fast run of the simulation code.

Thermodynamic phase transition in the rainbow Schwarzschild black hole

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gim, Yongwan; Kim, Wontae, E-mail: yongwan89@sogang.ac.kr, E-mail: wtkim@sogang.ac.kr

2014-10-01

We study the thermodynamic phase transition in the rainbow Schwarzschild black hole where the metric depends on the energy of the test particle. Identifying the black hole temperature with the energy from the modified dispersion relation, we obtain the modified entropy and thermodynamic energy along with the modified local temperature in the cavity to provide well defined black hole states. It is found that apart from the conventional critical temperature related to Hawking-Page phase transition there appears an additional critical temperature which is of relevance to the existence of a locally stable tiny black hole; however, the off-shell free energymore » tells us that this black hole should eventually tunnel into the stable large black hole. Finally, we discuss the reason why the temperature near the horizon is finite in the rainbow black hole by employing the running gravitational coupling constant, whereas it is divergent near the horizon in the ordinary Schwarzschild black hole.« less

Karl Marx and the Environment

ERIC Educational Resources Information Center

Shifferd, K. D.

1972-01-01

Implications from Karl Marx's concept of nature are explored. Serving as a frame of reference for the fight against pollution, the Marxian philosophy provides a kind of systems analysis of the origins and dynamics of pollution at the level of society and a set of conceptual tools and attitudes for unmasking the claims of industry. (BL)

Primordial SdS universe from a 5D vacuum: scalar field fluctuations on Schwarzschild and Hubble horizons

DOE Office of Scientific and Technical Information (OSTI.GOV)

Aguilar, José Edgar Madriz; Bellini, Mauricio, E-mail: jemadriz@fisica.ugto.mx, E-mail: mbellini@mdp.edu.ar

2010-11-01

We study scalar field fluctuations of the inflaton field in an early inflationary universe on an effective 4D Schwarzschild-de Sitter (SdS) metric, which is obtained after make a planar coordinate transformation on a 5D Ricci-flat Schwarzschild-de Sitter (SdS) static metric. We obtain the important result that the spectrum of fluctuations at zeroth order is independent of the scalar field mass M on Schwarzschild scales, while on cosmological scales it exhibits a mass dependence. However, in the first-order expansion, the spectrum depends of the inflaton mass and the amplitude is linear with the Black-Hole (BH) mass m.

Quasinormal Frequencies of D-Dimensional Schwarzschild Black Holes: Evaluation via Continued Fraction Method

NASA Astrophysics Data System (ADS)

Rostworowski, A.

2007-01-01

We adopt Leaver's [E. Leaver, {ITALIC Proc. R. Soc. Lond.} {A402}, 285 (1985)] method to determine quasi normal frequencies of the Schwarzschild black hole in higher (D geq 10) dimensions. In D-dimensional Schwarzschild metric, when D increases, more and more singularities, spaced uniformly on the unit circle |r|=1, approach the horizon at r=rh=1. Thus, a solution satisfying the outgoing wave boundary condition at the horizon must be continued to some mid point and only then the continued fraction condition can be applied. This prescription is general and applies to all cases for which, due to regular singularities on the way from the point of interest to the irregular singularity, Leaver's method in its original setting breaks down. We illustrate the method calculating gravitational vector and tensor quasinormal frequencies of the Schwarzschild black hole in D=11 and D=10 dimensions. We also give the details for the D=9 case, considered in the work of P. Bizoz, T. Chmaj, A. Rostworowski, B.G. Schmidt and Z. Tabor {ITALIC Phys. Rev.}{D72}, 121502(R) (2005) .

The Weak-Line T Tauri Star V410 Tau

DTIC Science & Technology

2003-01-01

700052 Tashkent, Uzbekistan 7 USRA/USNO Flagstaff Station, PO Box 1149, Flagstaff, AZ 86002-1149, USA 8 Thüringer Landessternwarte, Karl ... Schwarzschild -Observatorium, Sternwarte 5, 07778 Tautenburg, Germany 9 Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA 10

Large-scale influences on the pre-genesis of tropical cyclone Karl (2010)

NASA Astrophysics Data System (ADS)

Griffin, Kyle S.

The genesis of Tropical Cyclone (TC) Karl (2010) in September 2010 provided a unique opportunity to examine the continuing problem of understanding tropical cyclogenesis. The precursor disturbance to Karl originated from a cluster of showers east of the Windward Islands and was well sampled by ongoing field campaigns, particularly the PRE-Depression Investigation of Cloud-systems in the Tropics (PREDICT), as the targeted disturbance progressed westward. While traditional genesis theories focusing on moisture and mass fields (e.g. top-down showerhead method) can explain the initial spin-up of the disturbance several days prior to its official genesis, additional perspectives are examined in concert with more traditional methods in order to provide a more complete analysis of the synoptic-scale patterns that influenced the pre-Karl disturbance. A surge of westerly winds from northern South America aids the initial spin-up of the pre-Karl disturbance on 8-9 September, leading to the formation of a nearly closed earth-relative circulation. It can be shown that these anomalous westerly winds are tied to the convectively active phase of a convectively coupled Kelvin wave (CCKW). The observed formation of the nearly closed circulation on 10 September is well timed with the passage of this convectively active phase, a relationship that has been shown to hold true in cases of CCKW-TC interactions around the globe. Physically, the CCKW increases deep convection and aids in the generation of low-level relative vorticity on the cyclonic shear side of the low-level westerly wind anomalies, both of which serve to help organize the pre-Karl disturbance. Finally, the passage of the CCKW coincides with an equatorward surge of cold air and southerly winds in the lee of the Andes, triggered by a passing mid-latitude disturbance on 31 August. As the surge passes the equator on 7 September, little temperature perturbation remains with the surge, but terrain-channeled low-level flow

Design and Analysis of Experiments and More Realistic Techniques for Data Analysis.

DTIC Science & Technology

1986-03-01

Schwarzschild 1974-79 (Ph.D. 1979) P. Slasor 1984-85 (still a graduate student) David E. Tyler 1974-75 (Ph.D. 1979) Paul Velleman 1973-1974 (Ph.D...Statistics: Proceedings of the 14th Symposium on the Interface, eds. Karl W. Heiner, Richard S. Sacher and John W. Wilkinson, Springer-Verlag, New York...Proceedings of the 14th Symposium on the Interface, eds. Karl W. Heiner, Richard S. Sacher and John W. Wilkinson, Springer-Verlag, New York, 60-66. Tukey, John

Distinguished Astronomer Awarded Jansky Lectureship

NASA Astrophysics Data System (ADS)

2008-05-01

Associated Universities, Inc. (AUI), and the National Radio Astronomy Observatory (NRAO) have awarded the 2008 Karl G. Jansky Lectureship to Dr. Arthur M. Wolfe of the University of California, San Diego (UCSD). The Jansky Lectureship is an honor established by the trustees of AUI to recognize outstanding contributions to the advancement of radio astronomy. Dr. Arthur M. Wolfe Dr. Arthur M. Wolfe CREDIT: UCSD Click on image for high-resolution file Dr. Wolfe has made major contributions in several areas of astronomy. Along with Rainer Sachs, he predicted the Sachs-Wolfe Effect, a phenomenon which forms the basis for modern precision cosmology using the background radio emission left over from the Big Bang. In the 1970s, he discovered that light emitted by very distant galaxies is absorbed by hydrogen atoms in previously-undetected intervening gas clouds. From the 1980s until the present, he used optical light emitted by distant quasars to show that these clouds are the progenitors of stars found in modern galaxies. This phenomenon has since been used extensively to study the production of heavy elements and history of star formation in the Universe. He also did landmark research on whether the fundamental constants of nature, such as the charge of the electron and the masses of elementary particles, do, in fact, remain constant through cosmological time. Dr. Wolfe was the Director of the Center for Astrophysics and Space Sciences at UCSD from 1997 to 2007. He joined UCSD as a Professor of Physics and Astronomy in 1989, leaving the University of Pittsburgh, where he had taught since 1973. He holds the Chancellor's Associates Chair of Physics at UCSD. Dr. Wolfe received his Ph.D from the University of Texas at Austin. He is a Fellow of the American Academy of Arts and Sciences, and received the Sackler Fellowship of the Institute of Astronomy at the University of Cambridge, UK, in 2004. As Jansky Lecturer, Wolfe will give a presentation entitled, Finding the Gas that

Orographic Modification of Precipitation Processes in Hurricane Karl (2010)

DOE Office of Scientific and Technical Information (OSTI.GOV)

DeHart, Jennifer C.; Houze, Robert A.

Airborne radar data collected within Hurricane Karl (2010) provide a high-resolution glimpse of variations in the vertical precipitation structure around complex terrain in eastern Mexico. Widespread precipitation north of Karl’s track traced the strong gradient of terrain, suggesting orographic enhancement. Although the airborne radar did not sample the period of peak precipitation, time series of surface rainfall at three locations near the inner core show greater precipitation where flow was oriented to rise over the terrain. In regions of upslope flow, radar observations reveal reflectivity enhancement within 1–2 km of the surface. The shallow nature of the enhancement points tomore » orographically generated cloud water accreted by falling drops as a mechanism consistent with prior studies, while the heterogeneous nature of the enhancement suggests shallow convection was playing a role. In contrast, regions of downslope flow were characterized by uniform reflectivity above the ground and fallstreaks originating above the melting level. Unlike most previously studied tropical cyclones passing over topography, Karl made landfall on a mountainous continent, not an island. As Karl weakened and decayed over land, the vertical structure of the radar echo deteriorated north of the storm center, and infrared satellite imagery revealed a strong reduction in the upper-level cloud coverage; however, a small region of intense convection appeared and produced locally heavy rainfall as Karl was close to dissipation. In conclusion, these results indicate that orographic modification processes in a landfalling tropical cyclone are not static, and surface precipitation is highly sensitive to the changes.« less

Orographic Modification of Precipitation Processes in Hurricane Karl (2010)

DOE PAGES

DeHart, Jennifer C.; Houze, Robert A.

2017-10-06

Airborne radar data collected within Hurricane Karl (2010) provide a high-resolution glimpse of variations in the vertical precipitation structure around complex terrain in eastern Mexico. Widespread precipitation north of Karl’s track traced the strong gradient of terrain, suggesting orographic enhancement. Although the airborne radar did not sample the period of peak precipitation, time series of surface rainfall at three locations near the inner core show greater precipitation where flow was oriented to rise over the terrain. In regions of upslope flow, radar observations reveal reflectivity enhancement within 1–2 km of the surface. The shallow nature of the enhancement points tomore » orographically generated cloud water accreted by falling drops as a mechanism consistent with prior studies, while the heterogeneous nature of the enhancement suggests shallow convection was playing a role. In contrast, regions of downslope flow were characterized by uniform reflectivity above the ground and fallstreaks originating above the melting level. Unlike most previously studied tropical cyclones passing over topography, Karl made landfall on a mountainous continent, not an island. As Karl weakened and decayed over land, the vertical structure of the radar echo deteriorated north of the storm center, and infrared satellite imagery revealed a strong reduction in the upper-level cloud coverage; however, a small region of intense convection appeared and produced locally heavy rainfall as Karl was close to dissipation. In conclusion, these results indicate that orographic modification processes in a landfalling tropical cyclone are not static, and surface precipitation is highly sensitive to the changes.« less

Book Review:

NASA Astrophysics Data System (ADS)

Ernst, Frederick J.

2007-06-01

Shortly after Einstein published his general theory of relativity, the spherically symmetric solution of the vacuum field equations was discovered by Karl Schwarzschild, while Hermann Weyl showed that from any axisymmetric solution ψ of the Laplace equation ∇²ψ = 0 (satisfying appropriate boundary conditions) the metric tensor of a static axisymmetric vacuum spacetime can be constructed. In particular, the Schwarzschild solution corresponds to a rather trivial solution of Laplace's equation expressed in terms of prolate spheroidal coordinates. It took about 45 years before Roy Kerr discovered what he called the 'rotating Schwarzschild solution', and an additional five years before I established that from any complex axisymmetric solution \\E of the nonlinear equation (\\Re E)\

Komar energy and Smarr formula for noncommutative inspired Schwarzschild black hole

NASA Astrophysics Data System (ADS)

Banerjee, Rabin; Gangopadhyay, Sunandan

2011-11-01

We calculate the Komar energy E for a noncommutative inspired Schwarzschild black hole. A deformation from the conventional identity E = 2 ST H is found in the next to leading order computation in the noncommutative parameter θ (i.e. {{O}(sqrt{θ}e^{-M^2/θ})}) which is also consistent with the fact that the area law now breaks down. This deformation yields a nonvanishing Komar energy at the extremal point T H = 0 of these black holes. We then work out the Smarr formula, clearly elaborating the differences from the standard result M = 2 ST H , where the mass ( M) of the black hole is identified with the asymptotic limit of the Komar energy. Similar conclusions are also shown to hold for a deSitter-Schwarzschild geometry.

Proper temperature of the Schwarzschild AdS black hole revisited

NASA Astrophysics Data System (ADS)

Eune, Myungseok; Kim, Wontae

2017-10-01

The Unruh temperature calculated by using the global embedding of the Schwarzschild AdS spacetime into the Minkowski spacetime was identified with the local proper temperature; however, it became imaginary in a certain region outside the event horizon. So, the temperature was assumed to be zero of non-thermal radiation for that region. In this work, we revisit this issue in an exactly soluble two-dimensional Schwarzschild AdS black hole and present an alternative resolution to this problem in terms of the Tolman's procedure. However, the process appears to be non-trivial in the sense that the original procedure assuming the traceless energy-momentum tensor should be extended in such a way that it should cover the non-vanishing case of the energy-momentum tensor in the presence of the trace anomaly. Consequently, we show that the proper temperature turns out to be real everywhere outside the event horizon without any imaginary value, in particular, it vanishes at both the horizon and the asymptotic infinity.

Large-Scale Influences on the Genesis of Tropical Cyclone Karl (2010)

NASA Astrophysics Data System (ADS)

Griffin, K.; Bosart, L. F.

2012-12-01

The events leading up to the genesis of Tropical Cyclone (TC) Karl (2010) provides a unique opportunity to examine the continuing problem of understanding tropical cyclogenesis. The PRE-Depression Investigation of Cloud-systems in the Tropics (PREDICT) field campaign allowed for detailed investigation of the tropical disturbance that served as the precursor to TC Karl as it progressed westward through the Caribbean Sea. The purpose of this presentation is to examine the evolution of the pre-Karl disturbance using both common synoptic-scale analyses as well as statistically-based equatorial wave analyses, focusing on where these analyses complement and enhance each other. One of the major factors in the initial spin-up of the pre-Karl tropical disturbance is a surge of southerly and westerly winds from northern South America on 8-10 September 2010. As the surge entered the Caribbean on 9 September, it aided in the formation of a nearly closed earth-relative cyclonic circulation near the southern Leeward Islands. This circulation weakened late on 10 September and remained weak through 13 September before increased organization led to TC genesis on 14 September. This southerly wind surge can be traced to a well-defined surge of anomalously cold air and enhanced southerly winds originating in the lee of the Argentinian Andes over a week prior. While the temperature anomalies wash out prior to reaching the equator, anomalous low-level winds progress into Colombia and Venezuela, where topography aids in turning the southerly winds eastward. An investigation of the pre-Karl environment utilizing wavenumber-frequency filtering techniques also suggests that the initial spin-up of pre-Karl can be associated with the active phase of a convectively coupled Kelvin wave (CCKW). The observed formation of the nearly closed cyclonic circulation on 10 September is well timed with the passage of anomalous westerly winds along and behind the convectively active phase of a CCKW. These

Schwarzschild black holes can wear scalar wigs.

PubMed

Barranco, Juan; Bernal, Argelia; Degollado, Juan Carlos; Diez-Tejedor, Alberto; Megevand, Miguel; Alcubierre, Miguel; Núñez, Darío; Sarbach, Olivier

2012-08-24

We study the evolution of a massive scalar field surrounding a Schwarzschild black hole and find configurations that can survive for arbitrarily long times, provided the black hole or the scalar field mass is small enough. In particular, both ultralight scalar field dark matter around supermassive black holes and axionlike scalar fields around primordial black holes can survive for cosmological times. Moreover, these results are quite generic in the sense that fairly arbitrary initial data evolve, at late times, as a combination of those long-lived configurations.

The road to Earth twins

NASA Astrophysics Data System (ADS)

Mayor, M.; Lovis, C.; Pepe, F.; Ségransan, D.; Udry, S.

2011-06-01

A rich population of low-mass planets orbiting solar-type stars on tight orbits has been detected by Doppler spectroscopy. These planets have masses in the domain of super-Earths and Neptune-type objects, and periods less than 100 days. In numerous cases these planets are part of very compact multiplanetary systems. Up to seven planets have been discovered orbiting one single star. These low-mass planets have been detected by the HARPS spectrograph around 30% of solar-type stars. This very high occurrence rate has been recently confirmed by the results of the Kepler planetary transit space mission. The large number of planets of this kind allows us to attempt a first characterization of their statistical properties, which in turn represent constraints to understand the formation process of these systems. The achieved progress in the sensitivity and stability of spectrographs have already led to the discovery of planets with masses as small as 1.5 M⊕. Karl Schwarzschild Award Lecture 2010

Schwarzschild fuzzball and explicitly unitary Hawking radiation

NASA Astrophysics Data System (ADS)

Zeng, Ding-fang

2018-05-01

We provide a fuzzball picture for Schwarzschild black holes, in which matters and energy consisting the hole are not positioned on the central point exclusively but oscillate around there in a serial of eigen-modes, each of which features a special level of binding degrees and are quantum mechanically possible to be measured outside the horizon. By listing these modes explicitly for holes as large as 6Mpl, we find that their number increases exponentially with the area. Basing on these results, we construct a simple but explicitly unitary formulation of Hawking radiations.

On the proof of the C 0-inextendibility of the Schwarzschild spacetime

NASA Astrophysics Data System (ADS)

Sbierski, Jan

2018-02-01

This article presents a streamlined version of the author’s original proof of the C 0-inextendibility of the maximal analytic Schwarzschild spacetime. Firstly, we deviate from the original proof by using the result, recently established in collaboration with Galloway and Ling, that given a C 0-extension of a globally hyperbolic spacetime, one can find a timelike geodesic that leaves this spacetime. This result much simplifies the proof of the inextendibility through the exterior region of the Schwarzschild spacetime. Secondly, we give a more flexible and shorter argument for the inextendibility through the interior region. Furthermore, we present a small new structural result for the boundary of a globally hyperbolic spacetime within a C 0-extension which serves as a new and simpler starting point for the proof.

Workshop on Repetitive Opening Switches, held 28-30 January 1981, Tamarron, Colorado

DTIC Science & Technology

1981-04-20

have to be clever experimentalists and try out our ideas, such as the laser diverter described in t-he next paper by Karl Schoenbach. Thank you. :1 63...34Kinetics of E-Beam Ex- cited XeCL," 33rd Gaseous Electronics Conf., Univ of Oklahoma, Oct. 1980, Abstract FB-3. 10. M. Kruskal, M. Schwarzschild , Proc. hcy...International 1si0 e Rear 2700 Merced Street 10 15a3o San Leandro, CA 94577 Pittsburgh, PA 15235 ,415/357-4610 412/256-7552 . -Kr~stiansen Karl Freytag E

Homoclinic accretion solutions in the Schwarzschild-anti-de Sitter space-time

NASA Astrophysics Data System (ADS)

Mach, Patryk

2015-04-01

The aim of this paper is to clarify the distinction between homoclinic and standard (global) Bondi-type accretion solutions in the Schwarzschild-anti-de Sitter space-time. The homoclinic solutions have recently been discovered numerically for polytropic equations of state. Here I show that they exist also for certain isothermal (linear) equations of state, and an analytic solution of this type is obtained. It is argued that the existence of such solutions is generic, although for sufficiently relativistic matter models (photon gas, ultrahard equation of state) there exist global solutions that can be continued to infinity, similarly to standard Michel's solutions in the Schwarzschild space-time. In contrast to that global solutions should not exist for matter models with a nonvanishing rest-mass component, and this is demonstrated for polytropes. For homoclinic isothermal solutions I derive an upper bound on the mass of the black hole for which stationary transonic accretion is allowed.

Karl A. Gschneidner Jr (1930–2016)

DOE PAGES

Pecharsky, Vitalij K.

2016-09-23

Presented here is the obituary for Karl Albert Gschneidner Jr. He died on 27 April 2016. Nicknamed Mr Rare Earth, he holds an unparalleled place as the renowned authority in just about every aspect related to the science, technology and history of a very special family of elements — the rare earths.

Karl A. Gschneidner Jr (1930–2016)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pecharsky, Vitalij K.

Presented here is the obituary for Karl Albert Gschneidner Jr. He died on 27 April 2016. Nicknamed Mr Rare Earth, he holds an unparalleled place as the renowned authority in just about every aspect related to the science, technology and history of a very special family of elements — the rare earths.

Gesammelte Werke / Collected Works

NASA Astrophysics Data System (ADS)

Schwarzschild, Karl; Voigt, Hans-Heinrich

Der bekannte Astronom Karl Schwarzschild (1873-1916) gilt als der Begründer der Astrophysik und als hervorragender Forscher mit einer erstaunlichen Bandbreite seiner Interessen. Arbeiten zur Himmelsmechanik, Elektrodynamik und Relativitätstheorie weisen ihn als vorzüglichen Mathematiker und Physiker auf der Höhe seiner Zeit aus. Untersuchungen zur Photographischen Photometrie, Optik und Spektroskopie zeigen den versierten Beobachter, der sein Meßinstrumentarium beherrscht, und schließlich arbeitete Schwarzschild als Astrophysiker an Sternatmosphären, Kometen, Struktur und Dynamik von Sternsystemen. Die in seinem kurzen Leben entstandene Fülle an wissenschaftlichen Arbeiten ist in drei Bänden der Gesamtausgabe gesammelt, ergänzt durch biographisches Material, Annotationen von Fachleuten und einen Essay des Nobelpreisträgers S. Chandrasekhar. The well-known astronomer Karl Schwarzschild (1873-1916) is regarded as the founder of astrophysics and as an exceptionally talented researcher whose interests spanned a remarkably broad spectrum. His work on celestial mechanics, electrodynamics, and relativity theory demonstrates his great abilities as a mathematician and physicist who significantly influenced the science of his times. His investigations of photographic photometry, optics, and spectroscopy display his strengths as an observer who knew his instruments. But above all Schwarzschild pursued questions of astrophysics, addressing in particular stellar atmospheres, comets, and the structure and dynamics of stellar systems. The host of scientific works that he authored in his short life is now collected in the form of this three-volume complete works; it is supplemented by biographical material, notes from some of todays experts, and an essay by the Nobel Laureate S. Chandrasekhar.

On the existence of black holes in distorted Schwarzschild spacetime using marginally trapped surfaces

NASA Astrophysics Data System (ADS)

Pilkington, Terry

The classical definition of a black hole in terms of an event horizon relies on global properties of the spacetime. Realistic black holes have matter distributions surrounding them, which negates the asymptotic flatness needed for an event horizon. Using the (quasi-)local concept of marginally trapped surfaces, we investigate the Schwarzschild spacetime distorted by an axisymmetric matter distribution. We determine that it is possible to locate a future outer trapping horizon for a given foliation within certain value ranges of multipole moments. Furthermore, we show that there are no marginally trapped surfaces for arbitrary values of the multipole moment magnitudes. KEYWORDS: SCHWARZSCHILD; BLACK HOLE; DISTORTED SPACETIME; MARGINALLY TRAPPED SURFACE; FUTURE OUTER TRAPPING HORIZON

Some Educational Implications of Karl Marx's Communism

ERIC Educational Resources Information Center

Hellerich, Gert

1970-01-01

According to the expressed ideas of Karl Marx, education should be viewed as a means to develop a person's whole potential and to make him a better human being. It is his contention that in a capitalist society, the educational process causes misery and exists solely to further entrench the power of the rich. (CK)

Astronaut Karl Henize with soft drink in middeck area

NASA Technical Reports Server (NTRS)

1985-01-01

Astronaut Karl Henize drinks from a special carbonated beverage dispenser labeled Pepsi while floating in the middeck area of the shuttle Challenger. Note the can appears to have its own built in straw.

Dirac perturbations on Schwarzschild-anti-de Sitter spacetimes: Generic boundary conditions and new quasinormal modes

NASA Astrophysics Data System (ADS)

Wang, Mengjie; Herdeiro, Carlos; Jing, Jiliang

2017-11-01

We study Dirac quasinormal modes of Schwarzschild-anti-de Sitter (Schwarzschild-AdS) black holes, following the generic principle for allowed boundary conditions proposed in [M. Wang, C. Herdeiro, and M. O. P. Sampaio, Phys. Rev. D 92, 124006 (2015)., 10.1103/PhysRevD.92.124006]. After deriving the equations of motion for Dirac fields on the aforementioned background, we impose vanishing energy flux boundary conditions to solve these equations. We find a set of two Robin boundary conditions are allowed. These two boundary conditions are used to calculate Dirac normal modes on empty AdS and quasinormal modes on Schwarzschild-AdS black holes. In the former case, we recover the known normal modes of empty AdS; in the latter case, the two sets of Robin boundary conditions lead to two different branches of quasinormal modes. The impact on these modes of the black hole size, the angular momentum quantum number and the overtone number are discussed. Our results show that vanishing energy flux boundary conditions are a robust principle, applicable not only to bosonic fields but also to fermionic fields.

The Potassium-Argon Laser Experiment (KARLE): In Situ Geochronology for Planetary Robotic Missions

NASA Technical Reports Server (NTRS)

Cohen, B. A.; Devismes, D.; Miller, J. S.; Swindle, T. D.

2014-01-01

Isotopic dating is an essential tool to establish an absolute chronology for geological events, including crystallization history, magmatic evolution, and alteration events. The capability for in situ geochronology will open up the ability for geochronology to be accomplished as part of lander or rover complement, on multiple samples rather than just those returned. An in situ geochronology package can also complement sample return missions by identifying the most interesting rocks to cache or return to Earth. The K-Ar Laser Experiment (KArLE) brings together a novel combination of several flight-proven components to provide precise measurements of potassium (K) and argon (Ar) that will enable accurate isochron dating of planetary rocks. KArLE will ablate a rock sample, measure the K in the plasma state using laser-induced breakdown spectroscopy (LIBS), measure the liberated Ar using mass spectrometry (MS), and relate the two by measuring the volume of the ablated pit by optical imaging. Our work indicates that the KArLE instrument is capable of determining the age of planetary samples with sufficient accuracy to address a wide range of geochronology problems in planetary science. Additional benefits derive from the fact that each KArLE component achieves analyses useful for most planetary surface missions.

Hawking radiation inside a Schwarzschild black hole

NASA Astrophysics Data System (ADS)

Hamilton, Andrew J. S.

2018-05-01

The boundary of any observer's spacetime is the boundary that divides what the observer can see from what they cannot see. The boundary of an observer's spacetime in the presence of a black hole is not the true (future event) horizon of the black hole, but rather the illusory horizon, the dimming, redshifting surface of the star that collapsed to the black hole long ago. The illusory horizon is the source of Hawking radiation seen by observers both outside and inside the true horizon. The perceived acceleration (gravity) on the illusory horizon sets the characteristic frequency scale of Hawking radiation, even if that acceleration varies dynamically, as it must do from the perspective of an infalling observer. The acceleration seen by a non-rotating free-faller both on the illusory horizon below and in the sky above is calculated for a Schwarzschild black hole. Remarkably, as an infaller approaches the singularity, the acceleration becomes isotropic, and diverging as a power law. The isotropic, power-law character of the Hawking radiation, coupled with conservation of energy-momentum, the trace anomaly, and the familiar behavior of Hawking radiation far from the black hole, leads to a complete description of the quantum energy-momentum inside a Schwarzschild black hole. The quantum energy-momentum near the singularity diverges as r^{-6}, and consists of relativistic Hawking radiation and negative energy vacuum in the ratio 3 : - 2. The classical back reaction of the quantum energy-momentum on the geometry, calculated using the Einstein equations, serves merely to exacerbate the singularity. All the results are consistent with traditional calculations of the quantum energy-momentum in 1 + 1 spacetime dimensions.

Interactive Visualization of a Thin Disc around a Schwarzschild Black Hole

ERIC Educational Resources Information Center

Muller, Thomas; Frauendiener, Jorg

2012-01-01

In a first course in general relativity, the Schwarzschild spacetime is the most discussed analytic solution to Einstein's field equations. Unfortunately, there is rarely enough time to study the optical consequences of the bending of light for some advanced examples. In this paper, we present how the visual appearance of a thin disc around a…

(Non-adiabatic) string creation on nice slices in Schwarzschild black holes

NASA Astrophysics Data System (ADS)

Puhm, Andrea; Rojas, Francisco; Ugajin, Tomonori

2017-04-01

Nice slices have played a pivotal role in the discussion of the black hole information paradox as they avoid regions of strong spacetime curvature and yet smoothly cut through the infalling matter and the outgoing Hawking radiation, thus, justifying the use of low energy field theory. To avoid information loss it has been argued recently, however, that local effective field theory has to break down at the horizon. To assess the extent of this breakdown in a UV complete framework we study string-theoretic effects on nice slices in Schwarzschild black holes. Our purpose is two-fold. First, we use nice slices to address various open questions and caveats of [1] where it was argued that boost-enhanced non-adiabatic string-theoretic effects at the horizon could provide a dynamical mechanism for the firewall. Second, we identify two non-adiabatic effects on nice slices in Schwarzschild black holes: pair production of open strings near the horizon enhanced by the presence of the infinite tower of highly excited string states and a late-time non-adiabatic effect intrinsic to nice slices.

"Art, Imagination, Storytelling": An Interview with Karl Kroeber

ERIC Educational Resources Information Center

Mallick, Michael

2012-01-01

This article presents an interview with Karl Kroeber that was originally published in "English Department Updates" (Fall 2009), a semiannual alumni newsletter of the Columbia University Department of English & Comparative Literature. In this interview, Kroeber, who taught at Columbia for 57 years, discusses the range of courses he…

The Power of Prevention: Dr. Karl Augustus Menninger.

ERIC Educational Resources Information Center

Gillogly, Robert R.

1993-01-01

This issue's "Voices of Pioneers" segment features the work of Karl Menninger, pre-eminent psychiatrist, and his contributions to prison reform, mental health, and child care systems. Notes many of Menninger's books and writings, including relevant quotes throughout the article. Also describes Menninger's concern over the plight of…

Developement of the Potassium-Argon Laser Experiment (KArLE) for In Situ Geochronology

NASA Technical Reports Server (NTRS)

Cohen, Barbara A.

2012-01-01

Absolute dating of planetary samples is an essential tool to establish the chronology of geological events, including crystallization history, magmatic evolution, and alteration. Thus far, radiometric geochronology of planetary samples has only been accomplishable in terrestrial laboratories on samples from dedicated sample return missions and meteorites. In situ instruments to measure rock ages have been proposed, but none have yet reached TRL 6, because isotopic measurements with sufficient resolution are challenging. We have begun work under the NASA Planetary Instrument Definition and Development Program (PIDDP) to develop the Potassium (K) - Argon Laser Experiment (KArLE), a novel combination of several flight-proven components that will enable accurate KAr isochron dating of planetary rocks. KArLE will ablate a rock sample, measure the K in the plasma state using laser-induced breakdown spectroscopy (LIBS), measure the liberated Ar using quadrupole mass spectrometry (QMS), and relate the two by measuring the volume of the abated pit using a optical methods such as a vertical scanning interferometer (VSI). Our preliminary work indicates that the KArLE instrument will be capable of determining the age of several kinds of planetary samples to 100 Myr, sufficient to address a wide range of geochronology problems in planetary science. Additional benefits derive from the fact that each KArLE component achieves analyses common to most planetary surface missions.

The enhancement of quantum entanglement under an open Dirac system with the Hawking effect in Schwarzschild space-time

NASA Astrophysics Data System (ADS)

Sun, Wen-Yang; Wang, Dong; Fang, Bao-Long; Shi, Jia-Dong; Ye, Liu

2018-06-01

In this letter, we mainly investigate how to enhance the damaged quantum entanglement under an open Dirac system with the Hawking effect within Schwarzschild space-time. We consider that particle A held by Alice undergoes generalized amplitude damping noise in a flat space-time, and that another particle B by Bob entangled with A is under a Schwarzschild space-time. Subsequently, we put forward a physical scheme to recover the damaged quantum entanglement by prior weak measurement on subsystem A before the interaction with the decoherence noise followed by post-measurement filtering operation. The results indicate that our scheme can effectively recover the damaged quantum entanglement affected by the Hawking effect and the noisy channel. Thus, our work might be beneficial to understand the dynamic behavior of the quantum state and recover the damaged quantum entanglement with open Dirac systems under the Hawking effect in the background of a Schwarzschild black hole.

Karl Krueger, PhD | Division of Cancer Prevention

Cancer.gov

Dr. Karl Krueger received a PhD in biochemistry from Vanderbilt University and continued his research training at NIH as a postdoctoral fellow before joining the faculty at Georgetown University School of Medicine. His research throughout this period focused on different aspects of drug receptors and their role in the nervous system. |

University Observatory, Ludwig-Maximilians-Universität

NASA Astrophysics Data System (ADS)

Murdin, P.

2000-11-01

The University Observatory of Ludwig-Maximilians-Universität was founded in 1816. Astronomers who worked or graduated at the Munich Observatory include: Fraunhofer, Soldner, Lamont, Seeliger and Karl Schwarzschild. At present four professors and ten staff astronomers work here. Funding comes from the Bavarian Government, the German Science Foundation, and other German and European research progra...

J, H, K Spectro-Interferometry of the Mira Variable S Orionis

DTIC Science & Technology

2008-01-01

the Mira variable S Orionis M. Wittkowski1, D. A. Boboltz2, T. Driebe3, J.-B. Le Bouquin4 F. Millour3 K. Ohnaka3, and M. Scholz5,6 1 ESO, Karl ... Schwarzschild -Str. 2, 85748 Garching bei München, Germany e-mail: mwittkow@eso.org 2 US Naval Observatory, 3450 Massachusetts Avenue, NW, Washington, DC

Characterizing the Precipitation Processes in Hurricane Karl (2010) Through Analysis of Airborne Doppler Radar Data and Numerical Simulations

NASA Astrophysics Data System (ADS)

DeHart, J.; Houze, R.

2016-12-01

Airborne radar data and numerical simulations are employed to investigate the structure of Hurricane Karl (2010). Karl peaked in intensity as a major hurricane in the Gulf of Mexico before making landfall on the mountainous coast of Veracruz, Mexico. Multiple aircraft extensively sampled Karl during the NASA GRIP campaign, including NASA's DC-8 aircraft instrumented with the Advanced Precipitation Radar 2 (APR-2), which is a high-resolution, dual-frequency Doppler radar. Data from APR-2 provide a unique opportunity to characterize the precipitation structure of Karl as it underwent orographic modification. As Karl made landfall on 17 September 2010, the vertical structure of the precipitation echo varied spatially around the Mexican terrain. The precipitation variation was linked to several factors: landfall, orientation of flow relative to the topographic features, and differing characteristics inherent to the eyewall and rainbands. Despite the differences in the reflectivity intensity across the storm, we show that low-level reflectivity enhancement occurred only where upslope flow was favorable. The radar data indicate that the processes initially contributing to the reflectivity enhancement were warm-cloud processes, either through collection of orographically-generated cloud water or shallow convection. But as Karl weakened, the low-level enhancement processes were overshadowed by deep convection that developed along the terrain. Analysis of the radar data is complemented by a series of numerical simulations, which reasonably reproduce the track, intensity and structure of Karl. The simulated thermodynamic and kinematic patterns provide a holistic view of Karl's evolution during landfall. We use terrain modification experiments to examine the sensitivity of the orographic enhancement processes to the three-dimensional terrain and land surface characteristics. Consistent with the radar analysis, warm-cloud enhancement processes are visible in the spatial

The Potassium-Argon Laser Experiment (KarLE): In Situ Geochronology for Mars and Beyond

NASA Technical Reports Server (NTRS)

Cohen, Barbara A.

2014-01-01

The search for life in the solar system depends upon discovering the right moments in planetary evolution: when habitable environments existed, when they declined, and when geologic processes operated to preserve traces of life after death. However, an incomplete knowledge of absolute Martian geochronology limits our ability to understand the timing of Martian evolutionary milestones, major climate changes, and stratigraphic epochs [1, 2]. Absolute dating relates these habitability markers to planetarywide geologic, atmospheric, and climate history places, and ties their occurrence to the history of the solar system, especially the Earth-Moon system and the timescale of evolution of life on Earth. KArLE is being developed to anchor the relative timeline of geological events to an absolute chronology that puts Mars into a wider solar system context. KArLE makes its measurements on rock samples that can be obtained by landers or rovers and inserted into a small, mechanically simple chamber. KArLE interrogates the samples using laser-induced breakdown spectrocopy (LIBS), mass spectrometry, and optical imaging. The KArLE experiment is flexible enough to accommodate any partner providing these instrument components, a creative approach that extends the ability of mission payloads to accomplish an additional highly-desirable science measurement for low cost and risk and minimal extra hardware.

In Situ Geochronology on the Mars 2020 Rover with KArLE (Potassium-Argon Laser Experiment)

NASA Technical Reports Server (NTRS)

Cohen, B. A.; Swindle, T. D.; Roark, S. E.

2014-01-01

If extinct and/or extant life is discovered on Mars, knowledge of the chronology of the biosphere will be of paramount importance. KArLE will provide absolute ages of Mars 2020 rocks, which will allow us to understand them in the context of Mars' geologic history, connect them to other landing sites, and compare Martian epochs of habitability with the Earth's history and evolution of life. KArLE significantly enhances the ability of Mars 2020 to meet its science objectives by performing in situ age dating on key lithologies, enabling targeted searches for ancient biosignatures and increasing the chances of identifying evidence for Martian microbial life. The KArLE investigation makes its measurements on a core sample obtained with the rover drill, inserted into a small, mechanically simple chamber, followed by interrogation by laser-induced breakdown spectroscopy (LIBS), mass spectrometry, and optical imaging. The KArLE experiment is flexible enough to accommodate any partner providing these instrument components, a creative approach that extends the ability of the Mars 2020 payload to accomplish an additional highly-desirable science measurement for low cost and risk and minimal extra hardware.

Dirac Particles' Hawking Radiation from a Schwarzschild Black Hole

NASA Astrophysics Data System (ADS)

He, Xiao-Kai; Liu, Wen-Biao

2007-08-01

Considering energy conservation and the backreaction of particles to spacetime, we investigate the massless/massive Dirac particles' Hawking radiation from a Schwarzschild black hole. The exact expression of the emission rate near the horizon is obtained and the result indicates that Hawking radiation spectrum is not purely thermal. The result obtained is consistent with the results obtained before. It satisfies the underlying unitary theory and offers a possible mechanism to explain the information loss paradox. Whereas the improved Damour-Ruffini method is more concise and understandable.

(Non-adiabatic) string creation on nice slices in Schwarzschild black holes

DOE PAGES

Puhm, Andrea; Rojas, Francisco; Ugajin, Tomonori

2017-04-27

Nice slices have played a pivotal role in the discussion of the black hole information paradox as they avoid regions of strong spacetime curvature and yet smoothly cut through the infalling matter and the outgoing Hawking radiation, thus, justifying the use of low energy field theory. To avoid information loss it has been argued recently, however, that local effective field theory has to break down at the horizon. To assess the extent of this breakdown in a UV complete framework we study string-theoretic effects on nice slices in Schwarzschild black holes. Here, our purpose is two-fold. First, we use nicemore » slices to address various open questions and caveats of [1] where it was argued that boost-enhanced non-adiabatic string-theoretic effects at the horizon could provide a dynamical mechanism for the firewall. Second, we identify two non-adiabatic effects on nice slices in Schwarzschild black holes: pair production of open strings near the horizon enhanced by the presence of the infinite tower of highly excited string states and a late-time non-adiabatic effect intrinsic to nice slices.« less

(Non-adiabatic) string creation on nice slices in Schwarzschild black holes

DOE Office of Scientific and Technical Information (OSTI.GOV)

Puhm, Andrea; Rojas, Francisco; Ugajin, Tomonori

Nice slices have played a pivotal role in the discussion of the black hole information paradox as they avoid regions of strong spacetime curvature and yet smoothly cut through the infalling matter and the outgoing Hawking radiation, thus, justifying the use of low energy field theory. To avoid information loss it has been argued recently, however, that local effective field theory has to break down at the horizon. To assess the extent of this breakdown in a UV complete framework we study string-theoretic effects on nice slices in Schwarzschild black holes. Here, our purpose is two-fold. First, we use nicemore » slices to address various open questions and caveats of [1] where it was argued that boost-enhanced non-adiabatic string-theoretic effects at the horizon could provide a dynamical mechanism for the firewall. Second, we identify two non-adiabatic effects on nice slices in Schwarzschild black holes: pair production of open strings near the horizon enhanced by the presence of the infinite tower of highly excited string states and a late-time non-adiabatic effect intrinsic to nice slices.« less

Imaging Schwarzschild multilayer X-ray microscope

NASA Technical Reports Server (NTRS)

Hoover, Richard B.; Baker, Phillip C.; Shealy, David L.; Core, David B.; Walker, Arthur B. C., Jr.; Barbee, Troy W., Jr.; Kerstetter, Ted

1993-01-01

We have designed, analyzed, fabricated, and tested Schwarzschild multilayer X-ray microscopes. These instruments use flow-polished Zerodur mirror substrates which have been coated with multilayers optimized for maximum reflectivity at normal incidence at 135 A. They are being developed as prototypes for the Water Window Imaging X-Ray Microscope. Ultrasmooth mirror sets of hemlite grade sapphire have been fabricated and they are now being coated with multilayers to reflect soft X-rays at 38 A, within the biologically important 'water window'. In this paper, we discuss the fabrication of the microscope optics and structural components as well as the mounting of the optics and assembly of the microscopes. We also describe the optical alignment, interferometric and visible light testing of the microscopes, present interferometrically measured performance data, and provide the first results of optical imaging tests.

Astronomy from Olbers to Schwarzschild. (German Title: Astronomie von Olbers bis Schwarzschild)

NASA Astrophysics Data System (ADS)

Dick, Wolfgang R.; Hamel, Jürgen

This issue comprises talks presented 2000 September 18 at the colloquium ``International relations in astronomy'' it is supplemented by additional articles about this topic. The foundation of the international ``Vereinigte Astronomische Gesellschaft'', which took place in 1800 in Bremen, prompted us to investigate the development of astronomy in German-speaking regions, and its international relations during the 19th century. We investigate the activities of famous astronomers like W. Olbers, J.E. Bode, F.X. von Zach, J.H. Schroeter, H.C. Schumacher and K. Schwarzschild, as well as those of their less famous professional colleagues like J.G. Schrader and L. de Ball. The geographical spectrum extends from Bremen and Lilienthal over Kiel, Gotha and Dresden to Copenhagen, Vienna and Chile. Among the topics are: telescope construction, including telescopes made by Herschel, the rediscovery of the minor planet Ceres 1801/02, the Berlin ``Astronomisches Jahrbuch'', the foundation of the ``Astronomische Nachrichten'', the evolution from the ``Vereinigte Astronomische Gesellschaft'' to the present-day ``Astronomische Gesellschaft'', the research at the Kuffner Observatory in Vienna, the professionalization in astronomy, and the attempts of many countries to establish a southern observatory in Chile. A listing of astronomical monuments in Lilienthal and Bremen concludes the book. All papers are written in German with English abstracts.

Linear perturbations of a Schwarzschild blackhole by thin disc - convergence

NASA Astrophysics Data System (ADS)

Čížek, P.; Semerák, O.

2012-07-01

In order to find the perturbation of a Schwarzschild space-time due to a rotating thin disc, we try to adjust the method used by [4] in the case of perturbation by a one-dimensional ring. This involves solution of stationary axisymmetric Einstein's equations in terms of spherical-harmonic expansions whose convergence however turned out questionable in numerical examples. Here we show, analytically, that the series are almost everywhere convergent, but in some regions the convergence is not absolute.

Update on Development of the Potassium-Argon Laser Experiment (KArLE) Instrument for In Situ Geochronology

NASA Technical Reports Server (NTRS)

Cohen, Barbara A.; Li, Z.-H.; Miller, J. S.; Brinckerhoff, W. B.; Clegg, S. M.; Mahaffy, P. R.; Swindle, T. D.; Wiens, R. C.

2013-01-01

Absolute dating of planetary samples is an essential tool to establish the chronology of geological events, including crystallization history, magmatic evolution, and alteration. We are addressing this challenge by developing the Potassium (K) -- Argon Laser Experiment (KArLE), building on previous work to develop a K-Ar in situ instrument. KArLE ablates a rock sample, determines the K in the plasma state using laser-induced breakdown spectroscopy (LIBS), measures the liberated Ar using quadrupole mass spectrometry (QMS), and relates the two by the volume of the ablated pit using laser confocal microscopy (LCM). Our goal is for the KArLE instrument to be capable of determining the age of several kinds of planetary samples to address a wide range of geochronolgy problems in planetary science.

Astrophysical Institute, Potsdam

NASA Astrophysics Data System (ADS)

Murdin, P.

2000-11-01

Built upon a tradition of almost 300 years, the Astrophysical Institute Potsdam (AIP) is in an historical sense the successor of one of the oldest astronomical observatories in Germany. It is the first institute in the world which incorporated the term `astrophysical' in its name, and is connected with distinguished scientists such as Karl Schwarzschild and Albert Einstein. The AIP constitutes on...

History of optical theory of reflecting telescopes and implications for future projects

NASA Astrophysics Data System (ADS)

Wilson, Raymond N.

1997-03-01

This contribution, The History of Optical Theory of Reflecting Telescopes and Implications for Future Projects, is a shortened form of the Karl Schwarzschild lecture given in Bochum in September 1993. Some material has been added from an invited paper given in Padua in December 1992. For a full account, with figures and tables, the reader is referred to these two papers.

Hertzsprung, Ejnar (1873-1967)

NASA Astrophysics Data System (ADS)

Murdin, P.

2000-11-01

Danish astronomer, studied chemical engineering and worked as a chemist in St Petersburg before returning to Denmark to take up astronomy, worked in Göttingen and Potsdam with KARL SCHWARZSCHILD, and then at the Leiden Observatory (Netherlands) where he became director. Hertzsprung determined the proper motions of stars, and about a million positions of binary stars, as well as the brightnesses o...

The nature and consequence of Karl Marx's skin disease.

PubMed

Shuster, S

2008-01-01

From an analysis of the original correspondence, it has been possible to establish that Karl Marx's incapacitating skin disease was hidradenitis suppurativa, not 'boils' as was universally assumed at the time and since; the psychological effect of this illness on the man and his work appears to have been considerable.

Hannah Arendt and Karl Jaspers: The Time of Friendship

ERIC Educational Resources Information Center

Nixon, Jon

2016-01-01

This paper provides an introduction to the enduring friendship between Hannah Arendt and Karl Jaspers. It shows how their intellectual development as public educators was sustained by their ongoing dialogue which flourished not in spite of but because of their huge differences of circumstance and personality. This friendship between two renowned…

Quadratic curvature terms and deformed Schwarzschild-de Sitter black hole analogues in the laboratory

NASA Astrophysics Data System (ADS)

da Rocha, R.; Sobreiro, R. F.; Tomaz, A. A.

2017-12-01

Sound waves on a fluid stream, in a de Laval nozzle, are shown to correspond to quasinormal modes emitted by black holes that are physical solutions in a quadratic curvature gravity with cosmological constant. Sound waves patterns in transsonic regimes at a laboratory are employed here to provide experimental data regarding generalized theories of gravity, comprised by the exact de Sitter-like solution and a perturbative solution around the Schwarzschild-de Sitter standard solution as well. Using the classical tests of General Relativity to bound free parameters in these solutions, acoustic perturbations on fluid flows in nozzles are then regarded, to study quasinormal modes of these black holes solutions, providing deviations of the de Laval nozzle cross-sectional area, when compared to the Schwarzschild solution. The fluid sonic point in the nozzle, for sound waves in the fluid, is shown to implement the acoustic event horizon corresponding to quasinormal modes.

Vacuum Stress in Schwarzschild Spacetime

NASA Astrophysics Data System (ADS)

Howard, Kenneth Webster

Vacuum stress in the conformally invariant scalar field in the region exterior to the horizon of a Schwarzschild black hole is examined. In the Hartle-Hawking vacuum state <(phi)('2)> and are calculated. Covariant point-splitting renormalization is used, as is a mode sum expression for the Hartle-Hawking propagator. It is found that <(phi)('2)> separates naturally into two parts, a part that has a simple analytic form coinciding with the approximate expression of Whiting and Page, and a small remainder. The results of our numerical evaluation of the remainder agree with, but are more accurate than, those previously given by Fawcett. We find that also separates into two terms. The first coincides with the approximate expression obtained by Page with a Gaussian approximation to the proper time Green function. The second term, composed of sums over mode functions, is evaluated numerically. It is found that the total expression is in good qualitative agreement with Page's approximation. Our results disagree with previous numerical results given by Fawcett. The error in Fawcett's calculation is explained.

The Reference Process and the Philosophy of Karl Popper.

ERIC Educational Resources Information Center

Neill, S. D.

1985-01-01

Two aspects of Karl Popper's philosophy are applied to reference process: process is viewed as series of problem-solving situations amenable to analysis using Popper's problem-solving schema. Reference interview is analyzed in context of Popper's postulate that books contain autonomous world of ideas existing apart from mind of knower. (30…

Accretion onto a noncommutative-inspired Schwarzschild black hole

NASA Astrophysics Data System (ADS)

Gangopadhyay, Sunandan; Paik, Biplab; Mandal, Rituparna

2018-05-01

In this paper, we investigate the problem of ordinary baryonic matter accretion onto the noncommutative (NC) geometry-inspired Schwarzschild black hole. The fundamental equations governing the spherically symmetric steady state matter accretion are deduced. These equations are seen to be modified due to the presence of noncommutativity. The matter accretion rate is computed and is found to increase rapidly with the increase in strength of the NC parameter. The sonic radius reduces while the sound speed at the sonic point increases with the increase in the strength of noncommutativity. The profile of the thermal environment is finally investigated below the sonic radius and at the event horizon and is found to be affected by noncommutativity.

Karl Marx as a Social Scientist and Utopian Dreamer.

ERIC Educational Resources Information Center

Stevenson, James A.

The central paradox of Karl Marx's work is his belief that the vision of mankind leaving inequality and scarcity behind is attainable. The idea that human alienation, inequality, and need could be rendered obsolete by a future communist society of abundance is a significant failing in Marx's thought. It is at the same time the critical element in…

Karl Popper and Jean Piaget: A Rationale for Constructivism

ERIC Educational Resources Information Center

Harlow, Steve; Cummings, Rhoda; Aberasturi, Suzanne M.

2006-01-01

The current faddish use of the term constructivism has taken on as many different definitions as the number of people attempting to define it. This essay clarifies the meaning of constructivism through an examination of Karl Popper's and Jean Piaget's theories. The authors provide a rationale for the use of Popper's paradigm of "Three Worlds" and…

Behavior of a spin-1/2 massive charged particle in Schwarzschild immersed in an electromagnetic universe

NASA Astrophysics Data System (ADS)

Al-Badawi, A.

2018-02-01

The Dirac equation is considered in a spacetime that represents a Schwarzschild metric coupled to a uniform external electromagnetic field. Due to the presence of electromagnetic field from the surroundings, the interaction with the spin-1/2 massive charged particle is considered. The equations of the spin-1/2 massive charged particle are separated into radial and angular equations by adopting the Newman-Penrose formalism. The angular equations obtained are similar to the Schwarzschild geometry. For the radial equations we manage to obtain the one dimensional Schrödinger-type wave equations with effective potentials. Finally, we study the behavior of the potentials by plotting them as a function of radial distance and expose the effect of the external parameter, charge and the frequency of the particle on them.

Certification of the reference material of water content in water saturated 1-octanol by Karl Fischer coulometry, Karl Fischer volumetry and quantitative nuclear magnetic resonance.

PubMed

Wang, Haifeng; Ma, Kang; Zhang, Wei; Li, Jia; Sun, Guohua; Li, Hongmei

2012-10-15

Certified reference materials (CRMs) of water content are widely used in the calibration and validation of Karl Fischer coulometry and volumetry. In this study, the water content of the water saturated 1-octanol (WSO) CRM was certified by Karl Fischer coulometry, volumetry and quantitative nuclear magnetic resonance (Q NMR). The water content recovery by coulometry was 99.76% with a diaphragm-less electrode and Coulomat AG anolyte. The relative bias between the coulometry and volumetry results was 0.06%. In Q NMR, the water content of WSO is traceable to the International System (SI) of units through the purity of internal standard. The relative bias of water content in WSO between Q NMR and volumetry was 0.50%. The consistency of results for these three independent methods improves the accuracy of the certification of the RM. The certified water content of the WSO CRM was 4.76% with an expanded uncertainty of 0.09%. Copyright © 2012 Elsevier Ltd. All rights reserved.

Awards | NREL

Science.gov Websites

about NREL's outstanding researchers and scientists, high-performance buildings, and R&D 100 Award -winning technologies. photo of R&D 100 awards R&D 100 Awards R&D 100 Awards are presented to

Throat quantization of the Schwarzschild-Tangherlini(-AdS) black hole

NASA Astrophysics Data System (ADS)

Maeda, Hideki

2018-01-01

By the throat quantization pioneered by Louko and Mäkelä, we derive the mass and area/entropy spectra for the Schwarzschild-Tangherlini-type asymptotically flat or AdS vacuum black hole in arbitrary dimensions. Using the WKB approximation for black holes with large mass, we show that area/entropy is equally spaced for asymptotically flat black holes, while mass is equally spaced for asymptotically AdS black holes. Exact spectra can be obtained for toroidal AdS black holes in arbitrary dimensions including the three-dimensional BTZ black hole.

Mass quantization of the Schwarzschild black hole

NASA Astrophysics Data System (ADS)

Vaz, Cenalo; Witten, Louis

1999-07-01

We examine the Wheeler-DeWitt equation for a static, eternal Schwarzschild black hole in Kuchař-Brown variables and obtain its energy eigenstates. Consistent solutions vanish in the exterior of the Kruskal manifold and are nonvanishing only in the interior. The system is reminiscent of a particle in a box. States of definite parity avoid the singular geometry by vanishing at the origin. These definite parity states admit a discrete energy spectrum, depending on one quantum number which determines the Arnowitt-Deser-Misner mass of the black hole according to a relation conjectured long ago by Bekenstein M~nMp. If attention is restricted only to these quantized energy states, a black hole is described not only by its mass but also by its parity. States of indefinite parity do not admit a quantized mass spectrum.

Development of the Potassium-Argon Laser Experiment (KArLE) Instrument for In Situ Geochronology

NASA Technical Reports Server (NTRS)

Cohen, Barbara A.; Li, Z.-H.; Miller, J. S.; Brinckerhoff, W. B.; Clegg, S. M.; Mahaffy, P. R.; Swindle, T. D.; Wiens, R. C.

2012-01-01

Absolute dating of planetary samples is an essential tool to establish the chronology of geological events, including crystallization history, magmatic evolution, and alteration. Traditionally, geochronology has only been accomplishable on samples from dedicated sample return missions or meteorites. The capability for in situ geochronology is highly desired, because it will allow one-way planetary missions to perform dating of large numbers of samples. The success of an in situ geochronology package will not only yield data on absolute ages, but can also complement sample return missions by identifying the most interesting rocks to cache and/or return to Earth. In situ dating instruments have been proposed, but none have yet reached TRL 6 because the required high-resolution isotopic measurements are very challenging. Our team is now addressing this challenge by developing the Potassium (K) - Argon Laser Experiment (KArLE) under the NASA Planetary Instrument Definition and Development Program (PIDDP), building on previous work to develop a K-Ar in situ instrument [1]. KArLE uses a combination of several flight-proven components that enable accurate K-Ar isochron dating of planetary rocks. KArLE will ablate a rock sample, determine the K in the plasma state using laser-induced breakdown spectroscopy (LIBS), measure the liberated Ar using quadrupole mass spectrometry (QMS), and relate the two by the volume of the ablated pit using an optical method such as a vertical scanning interferometer (VSI). Our preliminary work indicates that the KArLE instrument will be capable of determining the age of several kinds of planetary samples to +/-100 Myr, sufficient to address a wide range of geochronology problems in planetary science.

Introduction to Some Fundamental Concepts of General Relativity and to Their Required Use in Some Modern Timekeeping Systems

DTIC Science & Technology

1981-12-01

t e d Riemann Curvature Wnsor and R i s the Curva ture ~ c 2 l ) a r . I n 1917, Karl Schwarzschi ld s o l v e d t h e s e e q u a t i o n...tu re of time a l o n e . I t is t h e Schwarzschild met r ic t h a t leads t o the famous concept n f t h e black h o l e . This is a...01 Well, it can: 2 m - I - - - - - 0 r c 2 Figure 2 4 One calls t h i s va lue of r t h e Schwarzschild b d l u s and o f t e n

7 CFR 2502.8 - Pre-award, award, and post-award procedures and administration of grants.

Code of Federal Regulations, 2014 CFR

2014-01-01

... (ACE) GRANTS PROGRAM Grant Applications and Administration § 2502.8 Pre-award, award, and post-award... CFR part 2500, subparts A, B, C, D, and E. (b) For purposes of the ACE Grants Program, the provisions...

7 CFR 2502.8 - Pre-award, award, and post-award procedures and administration of grants.

Code of Federal Regulations, 2013 CFR

2013-01-01

... (ACE) GRANTS PROGRAM Grant Applications and Administration § 2502.8 Pre-award, award, and post-award... CFR part 2500, subparts A, B, C, D, and E. (b) For purposes of the ACE Grants Program, the provisions...

7 CFR 2502.8 - Pre-award, award, and post-award procedures and administration of grants.

Code of Federal Regulations, 2012 CFR

2012-01-01

... (ACE) GRANTS PROGRAM Grant Applications and Administration § 2502.8 Pre-award, award, and post-award... CFR part 2500, subparts A, B, C, D, and E. (b) For purposes of the ACE Grants Program, the provisions...

Validation studies of Karl Fisher reference method for moisture in cotton

USDA-ARS?s Scientific Manuscript database

With current international standard oven drying (SOD) techniques lacking precision and accuracy statements, a new standard reference method is needed. Volumetric Karl Fischer Titration (KFT) is a widely used measure of moisture content. The method is used in many ASTM methods, 14 NIST SRMs, and te...

High-order tail in Schwarzschild spacetime

NASA Astrophysics Data System (ADS)

Casals, Marc; Ottewill, Adrian

2015-12-01

We present an analysis of the behavior at late times of linear field perturbations of a Schwarzschild black hole spacetime. In particular, we give explicit analytic expressions for the field perturbations (for a specific ℓ-multipole) of general spin up to the first four orders at late times. These expressions are valid at arbitrary radius and include, apart from the well-known power-law tail decay at leading order (˜t-2 ℓ-3), a new logarithmic behavior at third leading order (˜t-2 ℓ-5ln t ). We obtain these late-time results by developing an analytical formalism initially formulated by Mano, Suzuki and Takasugi (MST) [Prog. Theor. Phys. 95, 1079 (1996); 96, 549 (1996)] formalism and by expanding the various MST Fourier-mode quantities for small frequency. While we give explicit expansions up to the first four leading orders (for small frequency for the Fourier modes, for late time for the field perturbation), we give a prescription for obtaining expressions to arbitrary order within a "perturbative regime."

Radiative acceleration in Schwarzschild space-times

NASA Astrophysics Data System (ADS)

Keane, A. J.; Barrett, R. K.; Simmons, J. F. L.

2001-03-01

We examine the radial motion of a material particle in the intense radiation field of a static spherically symmetric compact object with spherical emitting surface outside the Schwarzschild radius. This paper generalizes previous work which dealt with radial motion in the Thomson limit, where the radiation force is simply proportional to the radiative flux. In the general case the average time component of the 4-momentum transferred to the particle is not negligible compared with its rest mass. Consequently, we find that the frequency dependence of the radiation force owing to Compton scattering for highly energetic photons gives rise to an increase in the effective mass of the test particle. In this work we outline the effects of this frequency dependence and compare these with the results in the Thomson limit. We present the frequency dependent saturation velocity curves for a range of stellar luminosities and radiation frequencies and present the resulting phase-space diagrams corresponding to the radial test particle trajectories. In particular, the stable equilibrium points which exist in the Thomson limit are found to be absent in the general case.

Trial by Newspaper: The Strange Case of Dr. Karl Muck.

ERIC Educational Resources Information Center

Kagan, Sheldon S.

1993-01-01

Examines the case of Dr. Karl Muck, conductor of the Boston Symphony Orchestra who was accused of espionage in 1917. Suggests that the espionage charge was a fiction created by newspapers, beginning with "The Providence Journal." Concludes that Muck admitted to being a spy rather than reveal the name of the woman with whom he had an…

Boosted Schwarzschild metrics from a Kerr–Schild perspective

NASA Astrophysics Data System (ADS)

Mädler, Thomas; Winicour, Jeffrey

2018-02-01

The Kerr–Schild version of the Schwarzschild metric contains a Minkowski background which provides a definition of a boosted black hole. There are two Kerr–Schild versions corresponding to ingoing or outgoing principle null directions. We show that the two corresponding Minkowski backgrounds and their associated boosts have an unexpected difference. We analyze this difference and discuss the implications in the nonlinear regime for the gravitational memory effect resulting from the ejection of massive particles from an isolated system. We show that the nonlinear effect agrees with the linearized result based upon the retarded Green function only if the velocity of the ejected particle corresponds to a boost symmetry of the ingoing Minkowski background. A boost with respect to the outgoing Minkowski background is inconsistent with the absence of ingoing radiation from past null infinity.

Interior volume of (1 + D)-dimensional Schwarzschild black hole

NASA Astrophysics Data System (ADS)

Bhaumik, Nilanjandev; Majhi, Bibhas Ranjan

2018-01-01

We calculate the maximum interior volume, enclosed by the event horizon, of a (1 + D)-dimensional Schwarzschild black hole. Taking into account the mass change due to Hawking radiation, we show that the volume increases towards the end of the evaporation. This fact is not new as it has been observed earlier for four-dimensional case. The interesting point we observe is that this increase rate decreases towards the higher value of space dimensions D; i.e. it is a decelerated expansion of volume with the increase of spatial dimensions. This implies that for a sufficiently large D, the maximum interior volume does not change. The possible implications of these results are also discussed.

Exact Schwarzschild-like solution in a bumblebee gravity model

NASA Astrophysics Data System (ADS)

Casana, R.; Cavalcante, A.; Poulis, F. P.; Santos, E. B.

2018-05-01

We obtain an exact vacuum solution from the gravity sector contained in the minimal standard-model extension. The theoretical model assumes a Riemann spacetime coupled to the bumblebee field which is responsible for the spontaneous Lorentz symmetry breaking. The solution achieved in a static and spherically symmetric scenario establishes a Schwarzschild-like black hole. In order to study the effects of the spontaneous Lorentz symmetry breaking we investigate some classic tests, including the advance of perihelion, the bending of light, and Shapiro's time delay. Furthermore, we compute some upper bounds, among which the most stringent associated with existing experimental data provides a sensitivity at the 10-15 level and that for future missions at the 10-19 level.

Numerical Solution of the Problem of the Expansion of the Universe in the Schwarzschild Metric

NASA Astrophysics Data System (ADS)

Vasenin, I. M.; Goiko, V. L.

2018-02-01

The statement and solution of the problem of the expansion of the Universe in nonstationary spherically-symmetric coordinates in the Schwarzschild metric are considered without pressure taken into account. The observational data of astronomers investigating the rates of recession of distant stars are explained on the basis of the obtained solutions.

Karl Julius Lohnert - an unknown astronomer, experimental psychologist and teacher (German Title: Karl Julius Lohnert - ein unbekannter Astronom, experimenteller Psychologe und Lehrer)

NASA Astrophysics Data System (ADS)

Schmadel, Lutz D.; Guski-Leinwand, Susanne

2011-08-01

Karl Julius Lohnert (1885-1944) with his double biography as astronomer and psychologist is hardly known in both fields. As a student of astronomy in Heidelberg, Lohnert discovered a couple of minor planets and he dedicated one to his PhD supervisor, the famous Leipzig professor for philosophy, Wilhelm Wundt. This connection is discussed for the first time almost one century after the naming of (635) Vundtia. The paper elucidates some biographical stations of Lohnert.

Hurricane Karl's Structure and Some Thoughts for 2014 Strategy

NASA Technical Reports Server (NTRS)

Cecil, Dan; Leppert, Ken, II

2014-01-01

Karl has interesting data, but far below the standards we should be able to achieve in HS3. We need to fly AV-1 over hurricanes in 2014. Most of the cold cloud shield in the inner core of hurricanes should be safe for AV-1 to fly. Significant convection occupies a small region, but we sometimes unnecessarily apply the 5000-ft separation rule to the entire cold cloud shield.

23 CFR 635.114 - Award of contract and concurrence in award.

Code of Federal Regulations, 2010 CFR

2010-04-01

... TRAFFIC OPERATIONS CONSTRUCTION AND MAINTENANCE Contract Procedures § 635.114 Award of contract and concurrence in award. (a) Federal-aid contracts shall be awarded only on the basis of the lowest responsive... 23 Highways 1 2010-04-01 2010-04-01 false Award of contract and concurrence in award. 635.114...

Web-Based Student Feedback: Comparing Teaching-Award and Research-Award Recipients

ERIC Educational Resources Information Center

Symbaluk, Diane G.; Howell, Andrew J.

2010-01-01

We examined web-based ratings and open-ended comments of teaching-award winners (n = 120) and research-award winners (n = 119) to determine if teaching-award winners received more favourable ratings and comments on RateMyProfessors.com. As predicted, students rated teaching-award winners higher than research-award winners on measures of teaching…

Cancellation of the central singularity of the Schwarzschild solution with natural mass inversion process

NASA Astrophysics Data System (ADS)

Petit, Jean-Pierre; D'Agostini, G.

2015-03-01

We reconsider the classical Schwarzschild solution in the context of a Janus cosmological model. We show that the central singularity can be eliminated through a simple coordinate change and that the subsequent transit from one fold to the other is accompanied by mass inversion. In such scenario matter swallowed by black holes could be ejected as invisible negative mass and dispersed in space.

Perturbation of a Schwarzschild Black Hole Due to a Rotating Thin Disk

DOE Office of Scientific and Technical Information (OSTI.GOV)

Čížek, P.; Semerák, O., E-mail: oldrich.semerak@mff.cuni.cz

Will, in 1974, treated the perturbation of a Schwarzschild black hole due to a slowly rotating, light, concentric thin ring by solving the perturbation equations in terms of a multipole expansion of the mass-and-rotation perturbation series. In the Schwarzschild background, his approach can be generalized to perturbation by a thin disk (which is more relevant astrophysically), but, due to rather bad convergence properties, the resulting expansions are not suitable for specific (numerical) computations. However, we show that Green’s functions, represented by Will’s result, can be expressed in closed form (without multipole expansion), which is more useful. In particular, they canmore » be integrated out over the source (a thin disk in our case) to yield good converging series both for the gravitational potential and for the dragging angular velocity. The procedure is demonstrated, in the first perturbation order, on the simplest case of a constant-density disk, including the physical interpretation of the results in terms of a one-component perfect fluid or a two-component dust in a circular orbit about the central black hole. Free parameters are chosen in such a way that the resulting black hole has zero angular momentum but non-zero angular velocity, as it is just carried along by the dragging effect of the disk.« less

The Advanced Gamma-ray Imaging System (AGIS): Schwarzschild-Couder (SC) Telescope Mechanical and Optical System Design

NASA Astrophysics Data System (ADS)

Guarino, V.; Vassiliev, V.; Buckley, J.; Byrum, K.; Falcone, A.; Fegan, S.; Finley, J.; Hanna, D.; Kaaret, P.; Konopelko, A.; Krawczynski, H.; Krennrich, F.; Romani, R.; Wagner, R.; Woods, M.

2009-05-01

The concept of a future ground-based gamma-ray observatory, AGIS, in the energy range 20 GeV to 200 TeV is based on an array of 50-100 imaging atmospheric Cherenkov telescopes (IACTs). The anticipated improvement of AGIS sensitivity, angular resolution, and reliability of operation imposes demanding technological and cost requirements on the design of IACTs. In this submission, we focus on the optical and mechanical systems for a novel Schwarzschild-Couder two-mirror aplanatic optical system originally proposed by Schwarzschild. Emerging new mirror production technologies based on replication processes, such as cold and hot glass slumping, cured CFRP, and electroforming, provide new opportunities for cost effective solutions for the design of the optical system. We explore capabilities of these mirror fabrication methods for the AGIS project and alignment methods for optical systems. We also study a mechanical structure which will provide support points for mirrors and camera design driven by the requirement of minimizing the deflections of the mirror support structures.

Schwarzschild and linear potentials in Mannheim's model of conformal gravity

NASA Astrophysics Data System (ADS)

Phillips, Peter R.

2018-05-01

We study the equations of conformal gravity, as given by Mannheim, in the weak field limit, so that a linear approximation is adequate. Specialising to static fields with spherical symmetry, we obtain a second-order equation for one of the metric functions. We obtain the Green function for this equation, and represent the metric function in the form of integrals over the source. Near a compact source such as the Sun the solution no longer has a form that is compatible with observations. We conclude that a solution of Mannheim type (a Schwarzschild term plus a linear potential of galactic scale) cannot exist for these field equations.

Hawking radiation spectra for scalar fields by a higher-dimensional Schwarzschild-de Sitter black hole

NASA Astrophysics Data System (ADS)

Pappas, T.; Kanti, P.; Pappas, N.

2016-07-01

In this work, we study the propagation of scalar fields in the gravitational background of a higher-dimensional Schwarzschild-de Sitter black hole as well as on the projected-on-the-brane four-dimensional background. The scalar fields have also a nonminimal coupling to the corresponding, bulk or brane, scalar curvature. We perform a comprehensive study by deriving exact numerical results for the greybody factors, and study their profile in terms of particle and spacetime properties. We then proceed to derive the Hawking radiation spectra for a higher-dimensional Schwarzschild-de Sitter black hole, and we study both bulk and brane channels. We demonstrate that the nonminimal field coupling, which creates an effective mass term for the fields, suppresses the energy emission rates while the cosmological constant assumes a dual role. By computing the relative energy rates and the total emissivity ratio for bulk and brane emission, we demonstrate that the combined effect of a large number of extra dimensions and value of the field coupling gives to the bulk channel the clear domination in the bulk-brane energy balance.

Effective temperatures and radiation spectra for a higher-dimensional Schwarzschild-de Sitter black hole

NASA Astrophysics Data System (ADS)

Kanti, P.; Pappas, T.

2017-07-01

The absence of a true thermodynamical equilibrium for an observer located in the causal area of a Schwarzschild-de Sitter spacetime has repeatedly raised the question of the correct definition of its temperature. In this work, we consider five different temperatures for a higher-dimensional Schwarzschild-de Sitter black hole: the bare T0, the normalized TBH, and three effective ones given in terms of both the black-hole and cosmological horizon temperatures. We find that these five temperatures exhibit similarities but also significant differences in their behavior as the number of extra dimensions and the value of the cosmological constant are varied. We then investigate their effect on the energy emission spectra of Hawking radiation. We demonstrate that the radiation spectra for the normalized temperature TBH—proposed by Bousso and Hawking over twenty years ago—leads to the dominant emission curve, while the other temperatures either support a significant emission rate only in a specific Λ regime or have their emission rates globally suppressed. Finally, we compute the bulk-over-brane emissivity ratio and show that the use of different temperatures may lead to different conclusions regarding the brane or bulk dominance.

Solar physics in Potsdam. (German Title: Sonnenphysik in Potsdam)

NASA Astrophysics Data System (ADS)

Staude, Jürgen

Solar research initiated the establishment of the Astrophysical Observatory Potsdam (AOP) in 1874. The present contribution outlines the development of solar physics in Potsdam from the early history of the AOP to this day. The main topics are the work of Karl Schwarzschild, the investigations related to the general theory of relativity, the foundation of the Einstein tower, Walter Grotrian's founding of modern coronal physics, and the investigations of sunspot magnetic fields.

The X-ray view of EROs

NASA Astrophysics Data System (ADS)

Brusa, M.; Comastri, A.; Daddi, E.; Cimatti, A.; Vignali, C.

(1) Dip. Astronomia Bologna University, via Ranzani 1, I-40127 Bologna ITALY (2) INAF - Osservatorio Astronomico di Bologna, via Ranzani 1, I-40127 Bologna ITALY (3) ESO - European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei Muenchen Germany (4) INAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-55025 Firenze, Italy (5) Dept. of Astronomy and Astrophysics, The Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA

Understanding the Relationships Between Lightning, Cloud Microphysics, and Airborne Radar-derived Storm Structure During Hurricane Karl (2010)

NASA Technical Reports Server (NTRS)

Reinhart, Brad; Fuelberg, Henry; Blakeslee, Richard; Mach, Douglas; Heymsfield, Andrew; Bansemer, Aaron; Durden, Stephen L.; Tanelli, Simone; Heymsfield, Gerald; Lambrigtsen, Bjorn

2013-01-01

This study explores relationships between lightning, cloud microphysics, and tropical cyclone (TC) storm structure in Hurricane Karl (16 September 2010) using data collected by the NASA DC-8 and Global Hawk (GH) aircraft during NASA's Genesis and Rapid Intensification Processes (GRIP) experiment. The research capitalizes on the unique opportunity provided by GRIP to synthesize multiple datasets from two aircraft and analyze the microphysical and kinematic properties of an electrified TC. Five coordinated flight legs through Karl by the DC-8 and GH are investigated, focusing on the inner-core region (within 50km of the storm center) where the lightning was concentrated and the aircraft were well coordinated. GRIP datasets are used to compare properties of electrified and nonelectrified inner-core regions that are related to the noninductive charging mechanism, which is widely accepted to explain the observed electric fields within thunderstorms. Three common characteristics of Karl's electrified regions are identified: 1) strong updrafts of 10-20ms21, 2) deep mixed-phase layers indicated by reflectivities.30 dBZ extending several kilometers above the freezing level, and 3) microphysical environments consisting of graupel, very small ice particles, and the inferred presence of supercooled water. These characteristics describe an environment favorable for in situ noninductive charging and, hence, TC electrification. The electrified regions in Karl's inner core are attributable to a microphysical environment that was conducive to electrification because of occasional, strong convective updrafts in the eyewall.

Oscillations of Static Discs around Schwarzschild Black Holes: Effect of Self-Gravitation

NASA Astrophysics Data System (ADS)

Semerák, Oldřich; Žáček, Miroslav

2000-12-01

The oscillations of accretion-disc matter about roughly circular motion may produce a quasi-periodic variation in the observed signal (Ipser 1996, AAA 65.067.047). They were studied theoretically on non-gravitating, test discs, in a pseudo-Newtonian manner as well as in general relativity, both in static and in stationary fields. The present paper shows how the radial profiles of oscillation frequencies can be modified by the self-gravity of the disc. Exact superpositions of a Schwarzschild black hole with the Lemos and Letelier (1994, AAA 61.067.077) annular discs (static thin discs obtained by inversion of the first Morgan-Morgan solution) are considered to be simple (static) models of an accretion system. Both the epicyclic and perpendicular frequencies are plotted against the Schwarzschild radius, the circumferential radius, and the proper distance from the horizon. The curves indicate that in the innermost parts more massive discs are more stable with respect to horizontal perturbations, whereas they are less stable with respect to vertical perturbations. In the case of a sequence of discs interpretable as counter-rotating particles on stable time-like circular geodesics and having their inner rims just on marginally stable circular orbits, oscillations of the inner parts get faster with increasing disc mass; the maximum of the epicyclic frequency, important for trapping of the low-frequency modes near the inner radius, moves to smaller radii and becomes somewhat higher.

Sigmund Freud (1856-1939) and Karl Köller (1857-1944) and the discovery of local anesthesia.

PubMed

dos Reis, Almiro

2009-01-01

The understanding, occasionally recognized, that Sigmund Freud had the intuition to use cocaine as local anesthetic for surgical procedures, or even that he played any role in the discovery of local anesthesia is not true. The objective of Freud's studies were different, and based in irrefutable evidence, Karl Köller was the real inventor of local anesthesia. In face of those facts, proper knowledge of this historically important subject is due. This report refers to the long-known properties of cocaine. It also remembers personal data, and the professional and scientific activities of Sigmund Freud and Karl Köller. It presents Freud's researches on the pathophysiological effects of cocaine. It exposes the reasons for the harsh criticism of Freud's concepts. It describes the sudden, but conscious and justified, idea of Karl Köller to study scientifically the use of cocaine as a local anesthetic in animals and humans. It indicates how those pioneering studies, that culminated with the discovery of local anesthesia by Köller and two presentations in Vienna on the subject, were done. It also reports the first ophthalmologic surgery under local anesthesia. It shows the immediate dissemination throughout the world of the discovery that marked the beginning of regional blocks. It comments several documents corroborating the role of Köller in this discovery. And, finally, it mentions the numerous homages received by Köller in different areas of the world. COCLUSIONS: Regional block was introduced by Karl Köller in 1884, when he demonstrated the feasibility of performing painless ophthalmologic surgeries by using cocaine as a local anesthetic. Sigmund Freud studied cocaine extensively, but he did not have direct participation in this important discovery.

Children's Book Awards Annual 1998.

ERIC Educational Resources Information Center

Berman, Matt; Dupuy, Marigny J.

This publication reviews the books from the major national children's book awards and lists. The following awards are covered: John Newberry Awards, Randolph Caldecott Awards, Coretta Scott King Awards, Mildred L. Batchelder Awards, Pura Belpre, Boston Globe-Horn Book Award, and the National Book Award for Young People's Literature. The lists are…

Karl Otto Himmler, manufacturer of the first contact lens.

PubMed

Pearson, Richard M

2007-03-01

In 1889 August Müller (1864-1949) reported the correction of his own high myopia with a ground scleral contact lens that had been manufactured in Berlin two years earlier. This paper provides the first conclusive identification, based upon primary sources, of the manufacturer of these lenses. They were made by an optical engineer, Karl Otto Himmler (1841-1903), whose firm enjoyed, until the outbreak of World War II, an international reputation for the manufacture of microscopes and their accessories.

The Potassium-Argon Laser Experiment (KArLE): In Situ Geochronology for Planetary Robotic Missions

NASA Technical Reports Server (NTRS)

Cohen, Barbara

2016-01-01

The Potassium (K) - Argon (Ar) Laser Experiment (KArLE) will make in situ noble-gas geochronology measurements aboard planetary robotic landers and roverss. Laser-Induced Breakdown Spectroscopy (LIBS) is used to measure the K abun-dance in a sample and to release its noble gases; the evolved Ar is measured by mass spectrometry (MS); and rela-tive K content is related to absolute Ar abundance by sample mass, determined by optical measurement of the ablated volume. KArLE measures a whole-rock K-Ar age to 10% or better for rocks 2 Ga or older, sufficient to resolve the absolute age of many planetary samples. The LIBS-MS approach is attractive because the analytical components have been flight proven, do not require further technical development, and provide complementary measurements as well as in situ geochronology.

Radiation reaction force on a particle in Schwarzschild spacetime

NASA Astrophysics Data System (ADS)

Tripathi, Swapnil; Wiseman, Alan

2007-04-01

The mathematical modelling of the radiation reaction force experienced by a particle in curved spacetime is very important for calculations of the templates used in detection of gravitational waves with LIGO, LISA etc. In particular, extreme mass ratio inspirals are strong candidates for gravitational wave detection with LISA. We model these systems as a particle in Schwarzschild spacetime, and use the Quinn Wald axioms to regularize the self force. Mode by mode expansion techniques are used for calculating the selfforce. Recent progress in this work is being reported in this talkootnotetextA. G. Wiseman, Phys. Rev. D 61 (2000) arXiv.org:gr-qc/084014 ootnotetextT.C. Quinn, Phys. Rev. D 62 (2000) arXiv.org:gr- qc/064029 ootnotetextT.C. Quinn, R.M. Wald Phys. Rev. D 56 (1997) 3381

Touching Ghosts: Observing Free Fall from an Infalling Frame of Reference into a Schwarzschild Black Hole

ERIC Educational Resources Information Center

Augousti, A. T.; Gawelczyk, M.; Siwek, A.; Radosz, A.

2012-01-01

The problem of communication between observers in the vicinity of a black hole in a Schwarzschild metric is considered. The classic example of an infalling observer Alice and a static distant mother station (MS) is extended to include a second infalling observer Bob, who follows Alice in falling towards the event horizon. Kruskal coordinates are…

7 CFR 2903.17 - Award document and notice of award.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 7 Agriculture 15 2013-01-01 2013-01-01 false Award document and notice of award. 2903.17 Section 2903.17 Agriculture Regulations of the Department of Agriculture (Continued) OFFICE OF ENERGY POLICY AND NEW USES, DEPARTMENT OF AGRICULTURE BIODIESEL FUEL EDUCATION PROGRAM Award Administration § 2903...

7 CFR 2903.17 - Award document and notice of award.

Code of Federal Regulations, 2012 CFR

2012-01-01

... 7 Agriculture 15 2012-01-01 2012-01-01 false Award document and notice of award. 2903.17 Section 2903.17 Agriculture Regulations of the Department of Agriculture (Continued) OFFICE OF ENERGY POLICY AND NEW USES, DEPARTMENT OF AGRICULTURE BIODIESEL FUEL EDUCATION PROGRAM Award Administration § 2903...

7 CFR 2903.17 - Award document and notice of award.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 7 Agriculture 15 2010-01-01 2010-01-01 false Award document and notice of award. 2903.17 Section 2903.17 Agriculture Regulations of the Department of Agriculture (Continued) OFFICE OF ENERGY POLICY AND NEW USES, DEPARTMENT OF AGRICULTURE BIODIESEL FUEL EDUCATION PROGRAM Award Administration § 2903...

7 CFR 2903.17 - Award document and notice of award.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 7 Agriculture 15 2014-01-01 2014-01-01 false Award document and notice of award. 2903.17 Section 2903.17 Agriculture Regulations of the Department of Agriculture (Continued) OFFICE OF ENERGY POLICY AND NEW USES, DEPARTMENT OF AGRICULTURE BIODIESEL FUEL EDUCATION PROGRAM Award Administration § 2903...

7 CFR 2903.17 - Award document and notice of award.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 7 Agriculture 15 2011-01-01 2011-01-01 false Award document and notice of award. 2903.17 Section 2903.17 Agriculture Regulations of the Department of Agriculture (Continued) OFFICE OF ENERGY POLICY AND NEW USES, DEPARTMENT OF AGRICULTURE BIODIESEL FUEL EDUCATION PROGRAM Award Administration § 2903...

[Karl Marx and the Malthusian theory of population].

PubMed

Jaggi, S

1985-06-01

An analysis of the works of Karl Marx is presented in order to demonstrate the importance of the population factor. The author contends that population growth is a critical factor in Marx's theory of the progressive impoverishment of the working class. However, because of his reluctance to acknowledge the value of the Malthusian contribution, Marx focused his analysis of the labor force under capitalism on the demand for workers and neglected the supply side, which is determined by the growth of population. The author concludes that Marxist theory would have benefited from greater consideration of Malthusian theory.

Volume Measurements of Laser-generated Pits for in Situ Geochronology Using KArLE (Potassium-Argon Laser Experiment)

NASA Technical Reports Server (NTRS)

French, R. A.; Cohen, B. A.; Miller, J. S.

2014-01-01

KArLE (Potassium-­-Argon Laser Experiment) has been developed for in situ planetary geochronology using the K - Ar (potassium-­-argon) isotope system, where material ablated by LIBS (Laser-­-Induced Breakdown Spectroscopy) is used to calculate isotope abundances. We are determining the accuracy and precision of volume measurements of these pits using stereo and laser microscope data to better understand the ablation process for isotope abundance calculations. If a characteristic volume can be determined with sufficient accuracy and precision for specific rock types, KArLE will prove to be a useful instrument for future planetary rover missions.

Karl Popper's Quantum Ghost

NASA Astrophysics Data System (ADS)

Shields, William

2004-05-01

Karl Popper, though not trained as a physicist and embarrassed early in his career by a physics error pointed out by Einstein and Bohr, ultimately made substantial contributions to the interpretation of quantum mechanics. As was often the case, Popper initially formulated his position by criticizing the views of others - in this case Niels Bohr and Werner Heisenberg. Underlying Popper's criticism was his belief that, first, the "standard interpretation" of quantum mechanics, sometimes called the Copenhagen interpretation, abandoned scientific realism and second, the assertion that quantum theory was "complete" (an assertion rejected by Einstein among others) amounted to an unfalsifiable claim. Popper insisted that the most basic predictions of quantum mechanics should continue to be tested, with an eye towards falsification rather than mere adding of decimal places to confirmatory experiments. His persistent attacks on the Copenhagen interpretation were aimed not at the uncertainty principle itself and the formalism from which it was derived, but at the acceptance by physicists of an unclear epistemology and ontology that left critical questions unanswered. In 1999, physicists at the University of Maryland conducted a version of Popper's Experiment, re-igniting the debate over quantum predictions and the role of locality in physics.

Stennis award

NASA Image and Video Library

2012-04-20

NASA Administrator Charles Bolden (l) and NASA Small Business Programs Associate Administrator Glenn Delgado (r) present NASA's Small Business Administrator's Cup Award to Stennis Space Center in recognition of its stellar small business program for fiscal year 2011. Receiving the award April 20, 2012, are (l to r) Stennis Procurement Office personnel Michelle Stracener and Rob Harris, along with Stennis Space Center Director Patrick Scheuermann. Bolden and Delgado presented the award during an onsite visit April 20.

[Management of functional sterility using clomiphene and cyclophenyl at the Karl-Marx-Stadt District Hospital Gynecologic Clinic].

PubMed

Neubert, S; Melzer, H

1977-01-01

We report on 39 barren patients suffering from anovulatory cycle disturbances or corpus luteum inadequacies. Them were given treatment in the Gynecological Hospital of Karl-Marx-Stadt County at Karl-Marx-Stadt in the past few years and were administered Clomiphendihydrogencitrate or Cyclophenyl to provoke ovulation. Before and during therapy, the total of estrogenes and pregnanediol were determined in the 24h-urine every two days. The clinical data and the results of the hormone investigations were analysed, and an attempt was made to derive a forecast from the estrogene and pregnanediol secretion so as to be able to form an opinion on the positive or negative result of the treatment.

Light bending, static dark energy, and related uniqueness of Schwarzschild-de Sitter spacetime

NASA Astrophysics Data System (ADS)

Ali, Md Sabir; Bhattacharya, Sourav

2018-01-01

Since the Schwarzschild-de Sitter spacetime is static inside the cosmological event horizon, if the dark energy state parameter is sufficiently close to -1 , apparently one could still expect an effectively static geometry, in the attraction dominated region inside the maximum turnaround radius, RTA ,max, of a cosmic structure. We take the first order metric derived recently assuming a static and ideal dark energy fluid with equation of state P (r )=α ρ (r ) as a source in Bhattacharya and Tomaras [Eur. Phys. J. C 77, 526 (2017), 10.1140/epjc/s10052-017-5102-4], which reproduced the expression for RTA ,max found earlier in the cosmological McVittie spacetime. Here we show that the equality originates from the equivalence of geodesic motion in these two backgrounds, in the nonrelativistic regime. We extend this metric up to the third order and compute the bending of light using the Rindler-Ishak method. For α ≠-1 , a dark energy dependent term appears in the bending equation, unlike the case of the cosmological constant, α =-1 . Because of this new term in particular, existing data for the light bending at galactic scales yields (1 +α )≲O (10-14), thereby practically ruling out any such static and inhomogeneous dark energy fluid we started with. Implication of this result pertaining to the uniqueness of the Schwarzschild-de Sitter spacetime in such an inhomogeneous dark energy background is discussed.

[Development of child neuropsychiatry at the Karl Marx University of Leipzig].

PubMed

Gebelt, H

1978-05-01

The development of pedoneuropsychiatry at the University of Leipzig is marked by the opening in 1926 of the first "Department of Pedopsychiatric Observation", the establishment of the Clinic of Pedoneuropsychiatry as an independent unit of the Department of Medicine, Karl Marx University, and the setting up in 1976 of a Chair of Pedoneuropsychiatry. Paul Schröder's and R. A. Pfeifer's services to their university are particularly appreciated.

The Dirac equation in Schwarzschild black hole coupled to a stationary electromagnetic field

NASA Astrophysics Data System (ADS)

Al-Badawi, A.; Owaidat, M. Q.

2017-08-01

We study the Dirac equation in a spacetime that represents the nonlinear superposition of the Schwarzschild solution to an external, stationary electromagnetic field. The set of equations representing the uncharged Dirac particle in the Newman-Penrose formalism is decoupled into a radial and an angular parts. We obtain exact analytical solutions of the angular equations. We manage to obtain the radial wave equations with effective potentials. Finally, we study the potentials by plotting them as a function of radial distance and examine the effect of the twisting parameter and the frequencies on the potentials.

General theories of linear gravitational perturbations to a Schwarzschild black hole

NASA Astrophysics Data System (ADS)

Tattersall, Oliver J.; Ferreira, Pedro G.; Lagos, Macarena

2018-02-01

We use the covariant formulation proposed by Tattersall, Lagos, and Ferreira [Phys. Rev. D 96, 064011 (2017), 10.1103/PhysRevD.96.064011] to analyze the structure of linear perturbations about a spherically symmetric background in different families of gravity theories, and hence study how quasinormal modes of perturbed black holes may be affected by modifications to general relativity. We restrict ourselves to single-tensor, scalar-tensor and vector-tensor diffeomorphism-invariant gravity models in a Schwarzschild black hole background. We show explicitly the full covariant form of the quadratic actions in such cases, which allow us to then analyze odd parity (axial) and even parity (polar) perturbations simultaneously in a straightforward manner.

We Know More Than We Can Tell About Diabetes and Vascular Disease: The 2016 Edwin Bierman Award Lecture.

PubMed

Semenkovich, Clay F

2017-07-01

The Edwin Bierman Award Lecture is presented in honor of the memory of Edwin L. Bierman, MD, an exemplary scientist, mentor, and leader in the field of diabetes, obesity, hyperlipidemia, and atherosclerosis. The award and lecture recognizes a leading scientist in the field of macrovascular complications and contributing risk factors in diabetes. Clay F. Semenkovich, MD, the Irene E. and Michael M. Karl Professor and Chief of the Division of Endocrinology, Metabolism and Lipid Research at Washington University School of Medicine in St. Louis, St. Louis, MO, received the prestigious award at the American Diabetes Association's 76th Scientific Sessions, 10-14 June 2016, in New Orleans, LA. He presented the Edwin Bierman Award Lecture, "We Know More Than We Can Tell About Diabetes and Vascular Disease," on Sunday, 12 June 2016. Diabetes is a disorder of abnormal lipid metabolism, a notion strongly supported by the work of Edwin Bierman, for whom this eponymous lecture is named. This abnormal lipid environment continues to be associated with devastating vascular complications in diabetes despite current therapies, suggesting that our understanding of the pathophysiology of blood vessel disease in diabetes is limited. In this review, potential new insights into the nature of diabetic vasculopathy will be discussed. Recent observations suggest that while the concept of distinct macrovascular and microvascular complications of diabetes has been useful, vascular diseases in diabetes may be more interrelated than previously appreciated. Moreover, the intermediary metabolic pathway of de novo lipogenesis, which synthesizes lipids from simple precursors, is robustly sensitive to insulin and may contribute to these complications. De novo lipogenesis requires fatty acid synthase, and recent studies of this enzyme suggest that endogenously produced lipids are channeled to specific intracellular sites to affect physiology. These findings raise the possibility that novel approaches

[Results of school inspections in the county of Karl-Marx-Stadt (author's transl)].

PubMed

Arnold, J

1978-10-01

Within the Health Protection in Childhood and Adolescence Research Project a hygienic inspection questionnaire was designed for schools. To test this questionnaire, 248 schools in 11 districts of the county of Karl-Marx-Stadt were inspected. From the ascertainments made, several instances are cited to point out the priorities of school hygiene.

Karl Marx and the Paris Commune of 1871: Tracing Traditions of Critical Pedagogy

ERIC Educational Resources Information Center

McGray, Robert

2014-01-01

In 1871, citizens of the war torn arrondissements of Paris, in the face of traumatic political and military turmoil, established a new local form of government. The Paris Commune, as this government became known as in the English world, attracted attention for its alternative political-economic organization. One notable commentator was Karl Marx…

Uncertainty relation in Schwarzschild spacetime

NASA Astrophysics Data System (ADS)

Feng, Jun; Zhang, Yao-Zhong; Gould, Mark D.; Fan, Heng

2015-04-01

We explore the entropic uncertainty relation in the curved background outside a Schwarzschild black hole, and find that Hawking radiation introduces a nontrivial modification on the uncertainty bound for particular observer, therefore it could be witnessed by proper uncertainty game experimentally. We first investigate an uncertainty game between a free falling observer and his static partner holding a quantum memory initially entangled with the quantum system to be measured. Due to the information loss from Hawking decoherence, we find an inevitable increase of the uncertainty on the outcome of measurements in the view of static observer, which is dependent on the mass of the black hole, the distance of observer from event horizon, and the mode frequency of quantum memory. To illustrate the generality of this paradigm, we relate the entropic uncertainty bound with other uncertainty probe, e.g., time-energy uncertainty. In an alternative game between two static players, we show that quantum information of qubit can be transferred to quantum memory through a bath of fluctuating quantum fields outside the black hole. For a particular choice of initial state, we show that the Hawking decoherence cannot counteract entanglement generation after the dynamical evolution of system, which triggers an effectively reduced uncertainty bound that violates the intrinsic limit -log2 ⁡ c. Numerically estimation for a proper choice of initial state shows that our result is comparable with possible real experiments. Finally, a discussion on the black hole firewall paradox in the context of entropic uncertainty relation is given.

NREL to Receive R & D 100 Awards at Annual Awards Ceremony | News | NREL

Science.gov Websites

5 » NREL to Receive R & D 100 Awards at Annual Awards Ceremony News Release: NREL to Receive R Energy's (DOE) National Renewable Energy Laboratory (NREL) will receive two R&D 100 awards during a black tie awards ceremony hosted by Research & Development (R&D) Magazine on Oct. 20 at

31 CFR 20.605 - Award.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 31 Money and Finance: Treasury 1 2014-07-01 2014-07-01 false Award. 20.605 Section 20.605 Money...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 20.605 Award. Award means an award of financial... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu...

31 CFR 20.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Award. 20.605 Section 20.605 Money...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 20.605 Award. Award means an award of financial... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu...

31 CFR 20.605 - Award.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 31 Money and Finance: Treasury 1 2011-07-01 2011-07-01 false Award. 20.605 Section 20.605 Money...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 20.605 Award. Award means an award of financial... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu...

31 CFR 20.605 - Award.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 31 Money and Finance: Treasury 1 2012-07-01 2012-07-01 false Award. 20.605 Section 20.605 Money...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 20.605 Award. Award means an award of financial... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu...

31 CFR 20.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 31 Money and Finance: Treasury 1 2013-07-01 2013-07-01 false Award. 20.605 Section 20.605 Money...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 20.605 Award. Award means an award of financial... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu...

32 CFR 644.118 - Awards.

Code of Federal Regulations, 2010 CFR

2010-07-01

... court awards (including jury or commission awards) where such awards do not exceed the highest testimony... Commissioner's Report, court award or jury verdict. This recommendation should include a discussion of any...

Gravitational Radiation - a New Window Onto the Universe. (Karl Schwarzschild Lecture 1996)

NASA Astrophysics Data System (ADS)

Thorne, K. S.

A summary is given of the current status and plans for gravitational-wave searches at all plausible wavelengths, from the size of the observable universe to a few kilometers. The anticipated scientific payoff from these searches is described, including expectations for detailed studies of black holes and neutron stars, high-accuracy tests of general relativity, and hopes for the discovery of exotic new kinds of objects.

@NASA Wins Shorty Award

NASA Image and Video Library

2013-04-10

A Shorty Award is seen Wednesday, April 10, 2013 at NASA Headquarters in Washington. NASA's official Twitter feed, @NASA, has won its second consecutive Shorty award for the best government use of social media. The Shorty Award honors the best of social media across sites such as Twitter, Facebook, Tumblr, YouTube, Foursquare and others. NASA took the prize Monday, April 8, at the fifth Shorty Awards ceremony in New York. The @NASA acceptance tweet was, "We're sharing the universe 1 tweet at a time. Be inspired! Follow @NASA & RT if you love science & space. #ShortyAwards." Photo Credit: (NASA/Carla Cioffi)

U.S. EPA SBIR Award Recipient Receives 2015 Tibbetts Award

EPA Pesticide Factsheets

Precision Combustion Inc. (PCI), an EPA SBIR award recipient , received the 2015 Tibbetts Award for developing and manufacturing advanced performance catalytic reactors and systems for energy, defense and environmental applications.

Tidal coupling of a Schwarzschild black hole and circularly orbiting moon

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fang Hua; Lovelace, Geoffrey

2005-12-15

We describe the possibility of using the laser interferometer space antenna (LISA) 's gravitational-wave observations to study, with high precision, the response of a massive central body (e.g. a black hole or a soliton star) to the tidal gravitational pull of an orbiting, compact, small-mass object (a white dwarf, neutron star, or small-mass black hole). Motivated by this LISA application, we use first-order perturbation theory to study tidal coupling for a special, idealized case: a Schwarzschild black hole of mass M, tidally perturbed by a 'moon' with mass {mu}<>M with orbital angularmore » velocity {omega}. We investigate the details of how the tidal deformation of the hole gives rise to an induced quadrupole moment I{sub ij} in the hole's external gravitational field at large radii, including the vicinity of the moon. In the limit that the moon is static, we find, in Schwarzschild coordinates and Regge-Wheeler gauge, the surprising result that there is no induced quadrupole moment. We show that this conclusion is gauge dependent and that the static, induced quadrupole moment for a black hole is inherently ambiguous, and we contrast this with an earlier result of Suen, which gave, in a very different gauge, a nonzero static induced quadrupole moment with a sign opposite to what one would get for a fluid central body. For the orbiting moon and the central Schwarzschild hole, we find (in agreement with a recent result of Poisson) a time-varying induced quadrupole moment that is proportional to the time derivative of the moon's tidal field, I{sub ij}=(32/45)M{sup 6}E{sub ij} and that therefore is out of phase with the tidal field by a spatial angle {pi}/4 and by a temporal phase shift {pi}/2. This induced quadrupole moment produces a gravitational force on the moon that reduces its orbital energy and angular momentum at the same rate as the moon's tidal field sends energy and angular momentum into the hole's horizon. As a

A Classical Based Derivation of Time Dilation Providing First Order Accuracy to Schwarzschild's Solution of Einstein's Field Equations

NASA Astrophysics Data System (ADS)

Austin, Rickey W.

In Einstein's theory of Special Relativity (SR), one method to derive relativistic kinetic energy is via applying the classical work-energy theorem to relativistic momentum. This approach starts with a classical based work-energy theorem and applies SR's momentum to the derivation. One outcome of this derivation is relativistic kinetic energy. From this derivation, it is rather straight forward to form a kinetic energy based time dilation function. In the derivation of General Relativity a common approach is to bypass classical laws as a starting point. Instead a rigorous development of differential geometry and Riemannian space is constructed, from which classical based laws are derived. This is in contrast to SR's approach of starting with classical laws and applying the consequences of the universal speed of light by all observers. A possible method to derive time dilation due to Newtonian gravitational potential energy (NGPE) is to apply SR's approach to deriving relativistic kinetic energy. It will be shown this method gives a first order accuracy compared to Schwarzschild's metric. The SR's kinetic energy and the newly derived NGPE derivation are combined to form a Riemannian metric based on these two energies. A geodesic is derived and calculations compared to Schwarzschild's geodesic for an orbiting test mass about a central, non-rotating, non-charged massive body. The new metric results in high accuracy calculations when compared to Einsteins General Relativity's prediction. The new method provides a candidate approach for starting with classical laws and deriving General Relativity effects. This approach mimics SR's method of starting with classical mechanics when deriving relativistic equations. As a compliment to introducing General Relativity, it provides a plausible scaffolding method from classical physics when teaching introductory General Relativity. A straight forward path from classical laws to General Relativity will be derived. This derivation

Wheels Shorty Award

NASA Image and Video Library

2011-03-30

A Shorty Award is seen Wednesday, March 30, 2011 at NASA Headquarters in Washington. The award was presented to NASA astronaut Doug Wheelock for an image of the moon he took and posted to his Twitter account, @Astro_Wheels, while living aboard the International Space Station last year. The awards ceremony was held at the TimesCenter in New York City on Monday, March 28. Photo Credit: (NASA/Paul E. Alers)

Coordinate Families for the Schwarzschild Geometry Based on Radial Timelike Geodesics

NASA Technical Reports Server (NTRS)

Finch, Tehani K.

2015-01-01

We explore the connections between various coordinate systems associated with observers moving inwardly along radial geodesics in the Schwarzschild geometry. Painleve-Gullstrand (PG) time is adapted to freely falling observers dropped from rest from in nity; Lake-Martel-Poisson (LMP) time coordinates are adapted to observers who start at in nity with non-zero initial inward velocity; Gautreau-Ho mann (GH) time coordinates are adapted to observers dropped from rest from a nite distance from the black hole horizon. We construct from these an LMP family and a propertime family of time coordinates, the intersection of which is PG time. We demonstrate that these coordinate families are distinct, but related, one-parameter generalizations of PG time, and show linkage to Lema^tre coordinates as well.

Coordinate Families for the Schwarzschild Geometry Based on Radial Timelike Geodesics

NASA Technical Reports Server (NTRS)

Finch, Tehani K.

2015-01-01

We explore the connections between various coordinate systems associated with observersmoving inwardly along radial geodesics in the Schwarzschild geometry. Painleve-Gullstrand (PG) time is adapted to freely falling observers dropped from rest from infinity; Lake-Martel-Poisson (LMP) time coordinates are adapted to observers who start at infinity with non-zero initial inward velocity; Gautreau-Hoffmann time coordinates are adapted to observers dropped from rest from a finite distance from the black hole horizon.We construct from these an LMP family and a proper-time family of time coordinates, the intersection of which is PG time. We demonstrate that these coordinate families are distinct, but related, one-parameter generalizations of PG time, and show linkage to Lemaître coordinates as well.

The incompressible Rindler fluid versus the Schwarzschild-AdS fluid

NASA Astrophysics Data System (ADS)

Matsuo, Yoshinori; Natsuume, Makoto; Ohta, Masahiro; Okamura, Takashi

2013-02-01

We study the proposal by Bredberg et al. [J. High Energy Phys. 1103, 141 (2011)], where the fluid is defined by the Brown-York tensor on a timelike surface at r = rc in black hole backgrounds. We consider both Rindler space and the Schwarzschild-AdS (SAdS) black hole. The former describes an incompressible fluid, whereas the latter describes the vanishing bulk viscosity at arbitrary rc. Although the near-horizon limit of the SAdS black hole is Rindler space, these two results do not contradict each other. We also find an interesting "coincidence" with the black hole membrane paradigm that gives a negative bulk viscosity. In order to show these results, we rewrite the hydrodynamic stress tensor via metric perturbations using the conservation equation. The resulting expressions are suitable to compare with the Brown-York tensor.

On some transonic aspects of general relativistic spherical accretion on to Schwarzschild black holes

NASA Astrophysics Data System (ADS)

Das, Tapas K.

2002-03-01

The equations governing general relativistic, spherically symmetric, hydrodynamic accretion of polytropic fluid on to black holes are solved in the Schwarzschild metric to investigate some of the transonic properties of the flow. Only stationary solutions are discussed. For such accretion, it has been shown that real physical sonic points may form even for flow with γ<4/3or γ>5/3. The behaviour of some flow variables in the close vicinity of the event horizon is studied as a function of specific energy and the polytropic index of the flow.

Resonance interatomic energy in a Schwarzschild spacetime

NASA Astrophysics Data System (ADS)

Zhou, Wenting; Yu, Hongwei

2017-08-01

We study, in the Schwarzschild spacetime, the resonance interatomic energy (RIE) of two static identical atoms with an interatomic separation L along the radial direction and correlated by a symmetric/antisymmetric entangled state. The atoms are assumed to be coupled to massless scalar fields in the Boulware, Unruh, and Hartle-Hawking vacua, and approximate analytical results are obtained both at infinity and near the horizon. Our results show that at infinity, the RIE approaches that in a flat spacetime, while, near the horizon, they can deviate dramatically from each other. Besides, different from other atomic radiative properties such as the Lamb shift of a single atom or the interatomic energy between two uncorrelated atoms, which can be obviously affected by the thermal character of quantum fields, the RIE of two atoms in a symmetric/antisymmetric entangled state in the Boulware, Unruh, and Hartle-Hawking vacua are exactly the same as a result of the fact that the RIE of two such atoms depends only on the atomic self-reaction, i.e., it does not feel the vacuum fluctuations. This suggests that the RIE of two static atoms in a symmetric/antisymmetric entangled state outside a black hole is oblivious to the Hawking radiation, in contrast to those uncorrelated atoms.

In Situ Dating Experiments of Igneous Rocks Using the KArLE Instrument: A Case Study for Approximately 380 Ma Basaltic Rocks

NASA Technical Reports Server (NTRS)

Cho, Yuichiro; Cohen, Barbara A.

2018-01-01

We report new K-Ar isochron data for two approximately 380 Ma basaltic rocks, using an updated version of the Potassium-Argon Laser Experiment (KArLE). These basalts have K contents comparable to lunar KREEP basalts or igneous lithologies found by Mars rovers, whereas previous proof-of-concept studies focused primarily on more K-rich rocks. We continue to measure these analogue samples to show the advancing capability of in situ K-Ar geochronology. KArLE is applicable to other bodies including the Moon or asteroids.

NREL Publications Win Awards

Science.gov Websites

Laboratory earned international awards from the Society for Technical Communications (STC). The awards were part of STC's International Technical Publications Competition. Fifteen publications (including the six international winners) also won awards in STC's Rocky Mountain Chapter's annual Publications, Art & Online

Pre-Award Administrators Are from Pluto: Post-Award Administrators Are from Saturn, Or Are They?

ERIC Educational Resources Information Center

Spina, Mary T.

2000-01-01

An experienced research administrator who has worked in both pre-award and post-award administrative roles offers her perspectives of both sides and suggests that a smooth relationship between pre-award and post-award research administrators is critical to the conduct of research. (DB)

42 CFR 66.106 - Awards.

Code of Federal Regulations, 2012 CFR

2012-10-01

... 42 Public Health 1 2012-10-01 2012-10-01 false Awards. 66.106 Section 66.106 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL RESEARCH SERVICE AWARDS Direct Awards § 66.106 Awards. (a) Within the limits of funds available, the...

42 CFR 66.106 - Awards.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 42 Public Health 1 2011-10-01 2011-10-01 false Awards. 66.106 Section 66.106 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL RESEARCH SERVICE AWARDS Direct Awards § 66.106 Awards. (a) Within the limits of funds available, the...

42 CFR 66.106 - Awards.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 42 Public Health 1 2013-10-01 2013-10-01 false Awards. 66.106 Section 66.106 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL RESEARCH SERVICE AWARDS Direct Awards § 66.106 Awards. (a) Within the limits of funds available, the...

42 CFR 66.106 - Awards.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 42 Public Health 1 2014-10-01 2014-10-01 false Awards. 66.106 Section 66.106 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL RESEARCH SERVICE AWARDS Direct Awards § 66.106 Awards. (a) Within the limits of funds available, the...

Climate Leadership Award for Excellence in GHG Management (Goal Achievement Award)

EPA Pesticide Factsheets

Apply to the Climate Leadership Award for Excellence in GHG Management (Goal Achievement Award), which publicly recognizes organizations that achieve publicly-set aggressive greenhouse gas emissions reduction goals.

Karl Marx in One Lesson (1818-1883). Series on Public Issues No. 6.

ERIC Educational Resources Information Center

Pejovich, Steve

This booklet, one of a series intended to apply economic principles to major social and political issues of the day, starts from the premise that Marxism is a threat to our way of life and offers a critique of fundamental components of the social movement Marx created. The first of six subsections focuses on sources of influence on Karl Marx…

42 CFR 66.106 - Awards.

Code of Federal Regulations, 2010 CFR

2010-10-01

... RESEARCH SERVICE AWARDS Direct Awards § 66.106 Awards. (a) Within the limits of funds available, the...) Whose proposed research or training would, in the judgment of the Secretary, best promote the purposes... need for personnel in the subject area of the proposed research or training. (b) In making Awards, the...

45 CFR 630.605 - Award.

Code of Federal Regulations, 2011 CFR

2011-10-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 630.605 Award. Award means an award of...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

45 CFR 630.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-10-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 630.605 Award. Award means an award of...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

45 CFR 630.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-10-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 630.605 Award. Award means an award of...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

45 CFR 630.605 - Award.

Code of Federal Regulations, 2014 CFR

2014-10-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 630.605 Award. Award means an award of...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

45 CFR 630.605 - Award.

Code of Federal Regulations, 2012 CFR

2012-10-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 630.605 Award. Award means an award of...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

BHP Billiton Science Teacher Awards

ERIC Educational Resources Information Center

Chittleborough, Gail; Campbell, Coral

2012-01-01

The prestigious BHP Billiton Science Teacher Awards are awarded annually to one teacher from each state of Australia. The awards recognise and value the time and effort that teachers give to the profession and to students conducting scientific research projects. This paper examines the Science Award scheme to identify the characteristics common to…

Problematizing the "Taken for Granted" in Educational Issues: Karl Marx, Antonio Gramsci, and Michel Foucault.

ERIC Educational Resources Information Center

Qi, Jie

This paper explores how educators would raise different questions about educational issues by using Karl Marx's framework, Antonio Gramsci's conception, and Michel Foucault's notions, respectively. First, the paper compares the historical perspectives of Marx and Foucault. Marx concludes that history is a progressive linear production and that…

29 CFR 1472.605 - Award.

Code of Federal Regulations, 2014 CFR

2014-07-01

...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1472.605 Award. Award means an award of financial.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

29 CFR 1472.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-07-01

...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1472.605 Award. Award means an award of financial.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

29 CFR 1472.605 - Award.

Code of Federal Regulations, 2011 CFR

2011-07-01

...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1472.605 Award. Award means an award of financial.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

32 CFR 26.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 26.605 Award. Award means an award of... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is...

32 CFR 26.605 - Award.

Code of Federal Regulations, 2012 CFR

2012-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 26.605 Award. Award means an award of... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is...

32 CFR 26.605 - Award.

Code of Federal Regulations, 2014 CFR

2014-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 26.605 Award. Award means an award of... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is...

32 CFR 26.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 26.605 Award. Award means an award of... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is...

32 CFR 26.605 - Award.

Code of Federal Regulations, 2011 CFR

2011-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 26.605 Award. Award means an award of... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is...

29 CFR 1472.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1472.605 Award. Award means an award of financial.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

29 CFR 1472.605 - Award.

Code of Federal Regulations, 2012 CFR

2012-07-01

...-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1472.605 Award. Award means an award of financial.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

Contract Award on Initial Proposals

DTIC Science & Technology

1988-09-30

3 2. Competition in Contracting Act ... ......... 6 3. Federal Property and Administrative Services Act 10 B. Basic Rules for Award Without...Discussions Before CICA . 11 C. Basic Rules for Award Without Discussions After Passage of CICA .......... ........................ ... 12 D. Award...controlled by statute. This chapter will explore those statutes and their antecedents. The basic rules for awarding contracts without discussions

38 CFR 48.605 - Award.

Code of Federal Regulations, 2012 CFR

2012-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 48.605 Award. Award means an award of.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

38 CFR 48.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 48.605 Award. Award means an award of.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

38 CFR 48.605 - Award.

Code of Federal Regulations, 2014 CFR

2014-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 48.605 Award. Award means an award of.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

38 CFR 48.605 - Award.

Code of Federal Regulations, 2011 CFR

2011-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 48.605 Award. Award means an award of.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

38 CFR 48.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 48.605 Award. Award means an award of.... (a) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

Hancock County Awards Gala

NASA Image and Video Library

2008-08-26

Gene Goldman (left), deputy director of NASA's John C. Stennis Space Center, accepts an Award of Excellence from Jack Zink, executive director of the Hancock County Port and Harbor Commission, during the 2008 Annual Hancock County Awards Gala. The Award of Excellence was presented to recognize Stennis Space Center's contribution to NASA's 50 years of excellence in space exploration.

NanoMech, US EPA SBIR Award Recipient: 2014 Tibbetts Award Winner

EPA Pesticide Factsheets

NanoMech, a EPA SBIR award recipient in 2004 and 2005, received the 2014 Tibbetts Award for its coating technology, which can improve manufacturing processes by extending the life of tools used in automotive and aerospace industries.

Large N phase transitions and the fate of small Schwarzschild-AdS black holes

NASA Astrophysics Data System (ADS)

Yaffe, Laurence G.

2018-01-01

Sufficiently small Schwarzschild-AdS black holes in asymptotically global AdS5×S5 spacetime are known to become dynamically unstable toward deformation of the internal S5 geometry. The resulting evolution of such an unstable black hole is related, via holography, to the dynamics of supercooled plasma which has reached the limit of metastability in maximally supersymmetric large-N Yang-Mills theory on R ×S3. Puzzles related to the resulting dynamical evolution are discussed, with a key issue involving differences between the large-N limit in the dual field theory and typical large volume thermodynamic limits.

Characteristics of transonic spherical symmetric accretion flow in Schwarzschild-de Sitter and Schwarzschild anti-de Sitter backgrounds, in pseudo-general relativistic paradigm

NASA Astrophysics Data System (ADS)

Ghosh, Shubhrangshu; Banik, Prabir

2015-07-01

In this paper, we present a complete work on steady state spherically symmetric Bondi type accretion flow in the presence of cosmological constant (Λ) in both Schwarzschild-de Sitter (SDS) and Schwarzschild anti-de Sitter (SADS) backgrounds considering an isolated supermassive black hole (SMBH), with the inclusion of a simple radiative transfer scheme, in the pseudo-general relativistic paradigm. We do an extensive analysis on the transonic behavior of the Bondi type accretion flow onto the cosmological BHs including a complete analysis of the global parameter space and the stability of flow, and do a complete study of the global family of solutions for a generic polytropic flow. Bondi type accretion flow in SADS background renders multiplicity in its transonic behavior with inner "saddle" type and outer "center" type sonic points, with the transonic solutions forming closed loops or contours. There is always a limiting value for ∣Λ∣ up to which we obtain valid stationary transonic solutions, which correspond to both SDS and SADS geometries; this limiting value moderately increases with the increasing radiative efficiency of the flow, especially correspond to Bondi type accretion flow in SADS background. Repulsive Λ suppresses the Bondi accretion rate by an order of magnitude for relativistic Bondi type accretion flow for a certain range in temperature, and with a marginal increase in the Bondi accretion rate if the corresponding accretion flow occurs in SADS background. However, for a strongly radiative Bondi type accretion flow with high mass accretion rate, the presence of cosmological constant do not much influence the corresponding Bondi accretion rate of the flow. Our analysis show that the relic cosmological constant has a substantial effect on Bondi type accretion flow onto isolated SMBHs and their transonic solutions beyond length-scale of kiloparsecs, especially if the Bondi type accretion occurs onto the host supergiant ellipticals or central

The Role of Awards Programs in Stimulating Energy Efficient Behavior: A Study of Award Winners

DOE Office of Scientific and Technical Information (OSTI.GOV)

McDermott, Christa; Malone, Elizabeth L.

The value of formal awards programs may be principally in gaining wider recognition for achievements in energy efficiency. But how do these programs contribute to the goal that is presumably behind this value, i.e., stimulating further energy efficient behavior, beyond publicizing the awards ceremonies and describing the projects via websites, posters, and the like? Interviews with 22 individuals and teams of award winners under the Department of Energy Federal Energy Management Program (DOE FEMP) yield insights on the roles that awards programs can play in stimulating energy efficient behavior, especially with regard to institutional dimensions of such behavior. Award winnersmore » identified institutional facilitators and barriers in their projects and programs as well as factors in their implementation processes, thus providing information that can guide other efforts. Although only one of the interviewees affirmed that winning an award was a motivating factor, awards do validate often-hard-won achievements through recognition and, in some cases, additional resources, thus stimulating both the winners themselves and those who see the achievements to further energy-saving activities. Finally, award winners’ responses demonstrated the importance of behavioral and institutional change in energy efficiency.« less

A sensitive EUV Schwarzschild microscope for plasma studies with sub-micrometer resolution

DOE PAGES

Zastrau, U.; Rodel, C.; Nakatsutsumi, M.; ...

2018-02-05

We present an extreme ultraviolet (EUV) microscope using a Schwarzschild objective which is optimized for single-shot sub-micrometer imaging of laser-plasma targets. The microscope has been designed and constructed for imaging the scattering from an EUV-heated solid-density hydrogen jet. Here, imaging of a cryogenic hydrogen target was demonstrated using single pulses of the free-electron laser in Hamburg (FLASH) free-electron laser at a wavelength of 13.5 nm. In a single exposure, we observe a hydrogen jet with ice fragments with a spatial resolution in the sub-micrometer range. In situ EUV imaging is expected to enable novel experimental capabilities for warm dense mattermore » studies of micrometer-sized samples in laser-plasma experiments.« less

A sensitive EUV Schwarzschild microscope for plasma studies with sub-micrometer resolution

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zastrau, U.; Rodel, C.; Nakatsutsumi, M.

We present an extreme ultraviolet (EUV) microscope using a Schwarzschild objective which is optimized for single-shot sub-micrometer imaging of laser-plasma targets. The microscope has been designed and constructed for imaging the scattering from an EUV-heated solid-density hydrogen jet. Here, imaging of a cryogenic hydrogen target was demonstrated using single pulses of the free-electron laser in Hamburg (FLASH) free-electron laser at a wavelength of 13.5 nm. In a single exposure, we observe a hydrogen jet with ice fragments with a spatial resolution in the sub-micrometer range. In situ EUV imaging is expected to enable novel experimental capabilities for warm dense mattermore » studies of micrometer-sized samples in laser-plasma experiments.« less

Accretion of a symmetry-breaking scalar field by a Schwarzschild black hole

NASA Astrophysics Data System (ADS)

Traykova, Dina; Braden, Jonathan; Peiris, Hiranya V.

2018-01-01

We simulate the behaviour of a Higgs-like field in the vicinity of a Schwarzschild black hole using a highly accurate numerical framework. We consider both the limit of the zero-temperature Higgs potential and a toy model for the time-dependent evolution of the potential when immersed in a slowly cooling radiation bath. Through these numerical investigations, we aim to improve our understanding of the non-equilibrium dynamics of a symmetry-breaking field (such as the Higgs) in the vicinity of a compact object such as a black hole. Understanding this dynamics may suggest new approaches for studying properties of scalar fields using black holes as a laboratory. This article is part of the Theo Murphy meeting issue `Higgs Cosmology'.

Accretion of a symmetry-breaking scalar field by a Schwarzschild black hole.

PubMed

Traykova, Dina; Braden, Jonathan; Peiris, Hiranya V

2018-03-06

We simulate the behaviour of a Higgs-like field in the vicinity of a Schwarzschild black hole using a highly accurate numerical framework. We consider both the limit of the zero-temperature Higgs potential and a toy model for the time-dependent evolution of the potential when immersed in a slowly cooling radiation bath. Through these numerical investigations, we aim to improve our understanding of the non-equilibrium dynamics of a symmetry-breaking field (such as the Higgs) in the vicinity of a compact object such as a black hole. Understanding this dynamics may suggest new approaches for studying properties of scalar fields using black holes as a laboratory.This article is part of the Theo Murphy meeting issue 'Higgs Cosmology'. © 2018 The Author(s).

NRAO Astronomer Wins Max-Planck Research Award

NASA Astrophysics Data System (ADS)

2005-04-01

galaxies. "The phone call from Prof. Fruehwald, president of the Humboldt Foundation, was quite a shock, and overwhelming, but much appreciated," Carilli said. "Now I just have to make good on their investment. Fortunately, I have a lot of help. I consider this award a recognition of our team's efforts over the last few years." The team includes collaborators in Bonn, Profs. Karl Menten and Frank Bertoldi; Heidelberg, Drs. Fabian Walter and Eva Schinnerer; and in France, Dr. Pierre Cox and Prof. Alain Omont. Carilli added: "In an era of big international telescope projects, I think we have set the standard for successful international research collaborations. These folks are not only my professional colleagues, but good friends." Carilli received a B.A. in Physics and Astronomy from the University of Pennsylvania and, in 1989, a Ph.D. in Physics from the Massachusetts Institute of Technology. After serving in research positions at NRAO in Socorro, the Harvard-Smithsonian Center for Astrophysics, and Leiden Observatory in the Netherlands, Carilli joined NRAO's permanent scientific staff in 1996. He also was a visiting Humboldt fellow in Bonn in 1999. He serves on a number of scientific advisory committees, and recently was chair of the international science advisory committee for the Square Kilometer Array project. He has co-edited five books and authored numerous research papers in a wide variety of scientific journals. The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.

Hawking radiation as tunneling in Schwarzschild anti-de Sitter black hole

NASA Astrophysics Data System (ADS)

Sefiedgar, A. S.; Ashrafinejad, A.

2017-08-01

The Hawking radiation from a (d+1) -dimensional Schwarzschild Anti-de Sitter (SAdS) black hole is investigated within rainbow gravity. Based on the method proposed by Kraus, Parikh and Wilczek, the Hawking radiation is considered as a tunneling process across the horizon. The emission rate of massless particles which are tunneling across the quantum-corrected horizon is calculated. Enforcing the energy conservation law leads to a dynamical geometry. Both the dynamical geometry and the quantum effects of space-time yield some corrections to the emission rate. The corrected radiation spectrum is not purely thermal. The emission rate is related to the changes of modified entropy in rainbow gravity and the corrected thermal spectrum may be consistent with an underlying unitary quantum theory. The correlations between emitted particles are also investigated in order to address the recovery of information.

Award-Winning Books: A Selected List for Teens.

ERIC Educational Resources Information Center

Dayton, Sandra

1984-01-01

Lists adolescent fiction and nonfiction titles that received Boston Globe/Horn Book Award, Carnegie Medal, Child Study Children's Book Committee at Bank Street College Award, Christopher Award, Edgar Allen Poe Award, Golden Kite Award, Nebula Award, and National Book Award/American Book Award. Each entry includes bibliographic information and…

The Rejectability of Karl Popper: Why Popper's Ideas Have Had So Little Influence on Social Practice.

ERIC Educational Resources Information Center

Burgess, Tyrrell; Swann, Joanna

2003-01-01

Addresses the question of why Karl Popper's work has been disregarded or rejected for educational improvement and suggests a series of impediments to an acceptance of Popper's ideas. Outlines a set of principle which if adopted as a basis for practice could lead to significant improvement. (EV)

International Humanitarian Award.

PubMed

2016-11-01

The International Humanitarian Award recognizes extraordinary humanitarian services and activism by psychologists, including professional and volunteer work conducted primarily in the field with underserved populations. Award recipients are psychologists who, by their extraordinary service at a difficult time, improve the lives and contribute to the well-being of people in a large or small geographic area anywhere in the world. The 2016 recipient of the APA International Humanitarian Award was selected by the 2015 Committee on International Relations in Psychology (CIRP). The members of the 2015 CIRP were Rehman Abdulrehman, PhD (Chair); Gonzalo Bacigalupe, EdD; Silvia S. Canetto, PhD; Amanda Clinton, PhD; Melissa L. Morgan Consoli, PhD; Chryse G. Hatzichristou, PhD; Arpana G. Inman, PhD; Lori Foster Thompson, PhD; and Danny Wedding, PhD. Dr. Abdulrehman, Dr. Morgan Consoli, Dr. Thompson, and Dr. Wedding were members of the subcommittee for the 2016 award. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

International Humanitarian Award.

PubMed

2017-12-01

The International Humanitarian Award recognizes extraordinary humanitarian services and activism by psychologists, including professional and volunteer work conducted primarily in the field with underserved populations. Award recipients are psychologists who, by their extraordinary service at a difficult time, improve the lives and contribute to the well-being of people in a large or small geographic area anywhere in the world. The 2017 recipient of the APA International Humanitarian Award was selected by the 2016 Committee on International Relations in Psychology (CIRP). The members of the 2016 CIRP were Melissa Morgan Consoli, PhD, and Arpana G. Inman, PhD (Co-chairs); Rehman Abdulrehman, PhD; Gonzalo Bacigalupe, EdD; Frederic Bemak, EdD; Brigitte Khoury, PhD; Susan Nolan, PhD; Nancy Sidun, PsyD; and Danny Wedding, PhD. Dr. Morgan Consoli, Dr. Inman, Dr. Nolan, and Doctor Sidun were members of the subcommittee for the 2017 award. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Mentor awards

NASA Astrophysics Data System (ADS)

Showstack, Randy

The Association of Women in Science (AWIS) and the American Indian Science and Engineering Society (AISES) were two of 19 institutions and individuals that received presidential awards for excellence in science, mathematics, and engineering mentoring, on September 11.Neal Lane, Director of the National Science Foundation, says the awards, which include $10,000 grants, recognize “individuals and institutions working to heighten the participation of underrepresented groups in science, mathematics, and engineering.”

Probing quantum entanglement in the Schwarzschild space-time beyond the single-mode approximation

NASA Astrophysics Data System (ADS)

He, Juan; Ding, Zhi-Yong; Ye, Liu

2018-05-01

In this paper, we deduce the vacuum structure for Dirac fields in the background of Schwarzschild space-time beyond the single-mode approximation and discuss the performance of quantum entanglement between particle and antiparticle modes of a Dirac field with Hawking effect. It is shown that Hawking radiation does not always destroy the physically accessible entanglement, and entanglement amplification may happen in some cases. This striking result is different from that of the single-mode approximation, which holds that the Hawking radiation can only destroy entanglement. Lastly, we analyze the physically accessible entanglement relation outside the event horizon and demonstrate that the monogamy inequality is constantly established regardless of the choice of given parameters.

Scattering of massless fermions by Schwarzschild and Reissner-Nordström black holes

NASA Astrophysics Data System (ADS)

Sporea, Ciprian A.

2017-12-01

We study the scattering of massless Dirac fermions by Schwarzschild and Reissner-Nordström black holes. This is done by applying partial wave analysis to the scattering modes obtained after solving the massless Dirac equation in the asymptotic regions of the two black hole geometries. We successfully obtain analytic phase shifts, with the help of which the scattering cross section is computed. The glory and spiral scattering phenomena are shown to be present, as in the case of massive fermion scattering by black holes. Supported by a grant of the Ministry of National Education and Scientific Research, RDI Programme for Space Technology and Advanced Research - STAR, project number 181/20.07.2017

Karl Jaspers' phenomenology in the light of histological and X-ray metaphors.

PubMed

Vlasova, Olga Alexandrovna; Beveridge, Allan

2014-03-01

The study considers the origins of Karl Jaspers' phenomenology. What did phenomenology mean to Jaspers and what was his personal perspective? What metaphors did he associate with it? This paper describes his phenomenological method by using the metaphors of histology and the X-ray. This perspective enables a better understanding, not only of the origins and essence of his phenomenology but also of its value for Jaspers himself. In Jaspers' daily life, he would have been familiar with microscopes and X-ray machines.

5 CFR 534.405 - Performance awards.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Performance awards. 534.405 Section 534... SYSTEMS Pay and Performance Awards Under the Senior Executive Service § 534.405 Performance awards. (a) This section covers the payment of performance awards to career appointees in the Senior Executive...

5 CFR 534.405 - Performance awards.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Performance awards. 534.405 Section 534... SYSTEMS Pay and Performance Awards Under the Senior Executive Service § 534.405 Performance awards. (a) This section covers the payment of performance awards to career appointees in the Senior Executive...

5 CFR 534.405 - Performance awards.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Performance awards. 534.405 Section 534... SYSTEMS Pay and Performance Awards Under the Senior Executive Service § 534.405 Performance awards. (a) This section covers the payment of performance awards to career appointees in the Senior Executive...

5 CFR 534.405 - Performance awards.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Performance awards. 534.405 Section 534... SYSTEMS Pay and Performance Awards Under the Senior Executive Service § 534.405 Performance awards. (a) This section covers the payment of performance awards to career appointees in the Senior Executive...

5 CFR 534.405 - Performance awards.

Code of Federal Regulations, 2012 CFR

2012-01-01

... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Performance awards. 534.405 Section 534... SYSTEMS Pay and Performance Awards Under the Senior Executive Service § 534.405 Performance awards. (a) This section covers the payment of performance awards to career appointees in the Senior Executive...

The 1973 Nobel Prize for Physiology or Medicine: recognition for behavioral science?

PubMed

Dewsbury, Donald A

2003-09-01

The Nobel Prize for Physiology or Medicine for 1973 was awarded to 3 ethologists: Karl von Frisch, Konrad Lorenz, and Nikolaas Tinbergen. This was a landmark event in the history of the field of ethology and potentially for the behavioral sciences more broadly. For the first time, the prize was awarded for research of a purely behavioral nature. The language used in making the award emphasized the implications of ethological work for human health and appeared to suggest that more such awards might be forthcoming; few were. The author provides an overview of the 3 men, their work, the events surrounding the award, the controversy that arose, and the significance of the award as viewed in contemporary perspective.

46 CFR 502.409 - Arbitration awards.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 46 Shipping 9 2010-10-01 2010-10-01 false Arbitration awards. 502.409 Section 502.409 Shipping... Alternative Dispute Resolution § 502.409 Arbitration awards. (a)(1) The award in an arbitration proceeding... appeal of an arbitrator's decision may not be filed with the Commission. (b) An award entered in an...

46 CFR 502.409 - Arbitration awards.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 46 Shipping 9 2011-10-01 2011-10-01 false Arbitration awards. 502.409 Section 502.409 Shipping... Alternative Dispute Resolution § 502.409 Arbitration awards. (a)(1) The award in an arbitration proceeding... appeal of an arbitrator's decision may not be filed with the Commission. (b) An award entered in an...

The significance and impact of a faculty teaching award: disparate perceptions of department chairs and award recipients.

PubMed

Brawer, James; Steinert, Yvonne; St-Cyr, Julie; Watters, Kevin; Wood-Dauphinee, Sharon

2006-11-01

Teaching awards are commonly regarded as an incentive to encourage pedagogic excellence. Inasmuch as their effectiveness depends on how they are perceived by faculty, the authors investigated the impact of a teaching award in the Faculty of Medicine (Faculty Honor List for Educational Excellence) on the attitudes of award recipients and departmental chairs. A questionnaire was designed to sample opinion on the extent to which the Honor List program was publicized, whether the award contributed to recognition and/or stature in the academic unit, and whether it was personally valued by recipients. The questionnaire was sent to all 23 departmental chairs and to all 43 faculty members who had received the award between 1998 and 2002; 78% of the chairs and 77% of the recipients responded. The results revealed marked discrepancies between the perceptions of chairs and recipients. Chairs, although uncertain of the effect on quality of teaching, largely regarded the award as prestigious and well publicized within their departments. A notably smaller percentage of award recipients shared these views. Nonetheless, 93% of recipients valued the award highly, and 45% of recipients indicated that the award inspired them to enhance the quality of their teaching.

2 CFR 1401.205 - Award.

Code of Federal Regulations, 2014 CFR

2014-01-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1401.205 Award. Award means an award of...) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A...: (1) Technical assistance that provides services instead of money. (2) Loans. (3) Loan guarantees. (4...

2 CFR 1401.205 - Award.

Code of Federal Regulations, 2012 CFR

2012-01-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1401.205 Award. Award means an award of...) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A...: (1) Technical assistance that provides services instead of money. (2) Loans. (3) Loan guarantees. (4...

2 CFR 1401.205 - Award.

Code of Federal Regulations, 2013 CFR

2013-01-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1401.205 Award. Award means an award of...) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A...: (1) Technical assistance that provides services instead of money. (2) Loans. (3) Loan guarantees. (4...

2 CFR 182.605 - Award.

Code of Federal Regulations, 2012 CFR

2012-01-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 182.605 Award. Award means an award of... grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or... that provides services instead of money. (2) Loans. (3) Loan guarantees. (4) Interest subsidies. (5...

24 CFR 21.605 - Award.

Code of Federal Regulations, 2011 CFR

2011-04-01

... GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (GRANTS) Definitions § 21.605 Award. Award means an award of... of money or property in lieu of money. (2) A block grant or a grant in an entitlement program... include: (1) Technical assistance that provides services instead of money. (2) Loans. (3) Loan guarantees...

2 CFR 182.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-01-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 182.605 Award. Award means an award of... grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or... that provides services instead of money. (2) Loans. (3) Loan guarantees. (4) Interest subsidies. (5...

40 CFR 36.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-07-01

... REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 36.605 Award. Award means an award of...: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2... include: (1) Technical assistance that provides services instead of money. (2) Loans. (3) Loan guarantees...

24 CFR 21.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-04-01

... GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (GRANTS) Definitions § 21.605 Award. Award means an award of... of money or property in lieu of money. (2) A block grant or a grant in an entitlement program... include: (1) Technical assistance that provides services instead of money. (2) Loans. (3) Loan guarantees...

2 CFR 175.15 - Award term.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 2 Grants and Agreements 1 2014-01-01 2014-01-01 false Award term. 175.15 Section 175.15 Grants and... grant or cooperative agreement to a private entity, as defined in § 175.25(d); and (2) A grant or... subawards under the award. 2. We as the Federal awarding agency may unilaterally terminate this award...

2 CFR 175.15 - Award term.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 2 Grants and Agreements 1 2011-01-01 2011-01-01 false Award term. 175.15 Section 175.15 Grants and... grant or cooperative agreement to a private entity, as defined in § 175.25(d); and (2) A grant or... subawards under the award. 2. We as the Federal awarding agency may unilaterally terminate this award...

2 CFR 3001.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-01-01

... FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 3001.605 Award. Award means an award of... grant, cooperative agreement or reimbursable agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is exempted from...

36 CFR 1212.605 - Award.

Code of Federal Regulations, 2012 CFR

2012-07-01

... GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1212.605 Award. Award...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

2 CFR 3001.605 - Award.

Code of Federal Regulations, 2014 CFR

2014-01-01

... FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 3001.605 Award. Award means an award of... grant, cooperative agreement or reimbursable agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is exempted from...

36 CFR 1212.605 - Award.

Code of Federal Regulations, 2014 CFR

2014-07-01

... GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1212.605 Award. Award...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

2 CFR 3001.605 - Award.

Code of Federal Regulations, 2012 CFR

2012-01-01

... FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 3001.605 Award. Award means an award of... grant, cooperative agreement or reimbursable agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is exempted from...

36 CFR 1212.605 - Award.

Code of Federal Regulations, 2011 CFR

2011-07-01

... GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1212.605 Award. Award...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

36 CFR 1212.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-07-01

... GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1212.605 Award. Award...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

A Conversation with Karl K. Turekian

NASA Astrophysics Data System (ADS)

Turekian, Karl K.; Cochran, J. Kirk

2012-01-01

Editors' Note Each year, the editorial board invites a distinguished member of the oceanographic community to contribute a prefatory chapter; this year, we were delighted when Karl Turekian, Sterling Professor of Geology and Geophysics at Yale, accepted our invitation. Over the course of a long and productive career, Dr. Turekian has pursued his interests in marine and atmospheric geochemistry by using natural radioactive and radiogenic isotopes to study Earth's evolution and the impacts of global change. He has also directed both the Center for the Study of Global Change at Yale and the Yale Institute for Biospheric Studies. In this interview, conducted by his former student Kirk Cochran, Dr. Turekian tells the story of his early career and discusses some of the major scientific challenges and opportunities faced along the way. His personal account of the rise of geochemistry is a charming story of how chance events and personalities impact scientific careers. His technical insight into the future of this field is illuminating, particularly for scientific outsiders who appreciate the central role of geochemistry in discerning and understanding patterns of global change. Craig A. Carlson and Stephen J. Giovannoni, Editors [Figure: see text

2 CFR 176.210 - Award term-Recovery Act transactions listed in Schedule of Expenditures of Federal Awards and...

Code of Federal Regulations, 2013 CFR

2013-01-01

... in Schedule of Expenditures of Federal Awards and Recipient Responsibilities for Informing... Awards and Recipient Responsibilities for Informing Subrecipients. The award term described in this...,” recipients agree to separately identify the expenditures for Federal awards under the Recovery Act on the...

2 CFR 176.210 - Award term-Recovery Act transactions listed in Schedule of Expenditures of Federal Awards and...

Code of Federal Regulations, 2012 CFR

2012-01-01

... in Schedule of Expenditures of Federal Awards and Recipient Responsibilities for Informing... Awards and Recipient Responsibilities for Informing Subrecipients. The award term described in this...,” recipients agree to separately identify the expenditures for Federal awards under the Recovery Act on the...

2 CFR 176.210 - Award term-Recovery Act transactions listed in Schedule of Expenditures of Federal Awards and...

Code of Federal Regulations, 2010 CFR

2010-01-01

... in Schedule of Expenditures of Federal Awards and Recipient Responsibilities for Informing... Recipients of Recovery Act Funds § 176.210 Award term—Recovery Act transactions listed in Schedule of Expenditures of Federal Awards and Recipient Responsibilities for Informing Subrecipients. The award term...

2 CFR 175.15 - Award term.

Code of Federal Regulations, 2012 CFR

2012-01-01

... 2 Grants and Agreements 1 2012-01-01 2012-01-01 false Award term. 175.15 Section 175.15 Grants and... section in— (1) A grant or cooperative agreement to a private entity, as defined in § 175.25(d); and (2) A... performance of the award or subawards under the award. 2. We as the Federal awarding agency may unilaterally...

2 CFR 175.15 - Award term.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 2 Grants and Agreements 1 2013-01-01 2013-01-01 false Award term. 175.15 Section 175.15 Grants and... section in— (1) A grant or cooperative agreement to a private entity, as defined in § 175.25(d); and (2) A... performance of the award or subawards under the award. 2. We as the Federal awarding agency may unilaterally...

1990 Hydrology Prize awarded

NASA Astrophysics Data System (ADS)

The International Association of Hydrological Sciences awarded its 1990 International Hydrology Prize to Z. Kaczmarek of Warsaw, Poland. The award was presented on March 16 in Paris, France, during Unesco's Commemorative Symposium on 25 Years of the International Hydrological Decade/International Hydrological Program.The IAHS International Hydrology Prize, a silver medal, was first approved in 1979 as an annual award to a person who has made an outstanding contribution to hydrology and gives the candidate universal recognition of his international stature. The IAHS national committees give nominations to the IAHS Secretary General for consideration by a nominating committee, which consists of the IAHS president, the first and second vice presidents and representatives of Unesco and the World Meteorological Organization. The citation for the award to Kaczmarek, which was given by IAHS president Vit Klemes, follows.

2 CFR 1401.205 - Award.

Code of Federal Regulations, 2011 CFR

2011-01-01

... DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) (Eff. 1-21-2011) Definitions § 1401.205 Award. Award means... award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant is...

Fabrication of nanoscale patterns in lithium fluoride crystal using a 13.5 nm Schwarzschild objective and a laser produced plasma source.

PubMed

Wang, Xin; Mu, Baozhong; Jiang, Li; Zhu, Jingtao; Yi, Shengzhen; Wang, Zhanshan; He, Pengfei

2011-12-01

Lithium fluoride (LiF) crystal is a radiation sensitive material widely used as EUV and soft x-ray detector. The LiF-based detector has high resolution, in principle limited by the point defect size, large field of view, and wide dynamic range. Using LiF crystal as an imaging detector, a resolution of 900 nm was achieved by a projection imaging of test meshes with a Schwarzschild objective operating at 13.5 nm. In addition, by imaging of a pinhole illuminated by the plasma, an EUV spot of 1.5 μm diameter in the image plane of the objective was generated, which accomplished direct writing of color centers with resolution of 800 nm. In order to avoid sample damage and contamination due to the influence of huge debris flux produced by the plasma source, a spherical normal-incidence condenser was used to collect EUV radiation. Together with a description of experimental results, the development of the Schwarzschild objective, the influence of condenser on energy density and the alignment of the imaging system are also reported.

Spectroscopy of the Schwarzschild black hole at arbitrary frequencies.

PubMed

Casals, Marc; Ottewill, Adrian

2012-09-14

Linear field perturbations of a black hole are described by the Green function of the wave equation that they obey. After Fourier decomposing the Green function, its two natural contributions are given by poles (quasinormal modes) and a largely unexplored branch cut in the complex frequency plane. We present new analytic methods for calculating the branch cut on a Schwarzschild black hole for arbitrary values of the frequency. The branch cut yields a power-law tail decay for late times in the response of a black hole to an initial perturbation. We determine explicitly the first three orders in the power-law and show that the branch cut also yields a new logarithmic behavior T(-2ℓ-5)lnT for late times. Before the tail sets in, the quasinormal modes dominate the black hole response. For electromagnetic perturbations, the quasinormal mode frequencies approach the branch cut at large overtone index n. We determine these frequencies up to n(-5/2) and, formally, to arbitrary order. Highly damped quasinormal modes are of particular interest in that they have been linked to quantum properties of black holes.

Reference test methods for total water in lint cotton by Karl Fischer Titration and low temperature distillation

USDA-ARS?s Scientific Manuscript database

In a study of comparability of total water contents (%) of conditioned cottons by Karl Fischer Titration (KFT) and Low Temperature Distillation (LTD) reference methods, we demonstrated a match of averaged results based on a large number of replications and weighing the test specimens at the same tim...

Scalar self-force on eccentric geodesics in Schwarzschild spacetime: A time-domain computation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Haas, Roland

2007-06-15

We calculate the self-force acting on a particle with scalar charge moving on a generic geodesic around a Schwarzschild black hole. This calculation requires an accurate computation of the retarded scalar field produced by the moving charge; this is done numerically with the help of a fourth-order convergent finite-difference scheme formulated in the time domain. The calculation also requires a regularization procedure, because the retarded field is singular on the particle's world line; this is handled mode-by-mode via the mode-sum regularization scheme first introduced by Barack and Ori. This paper presents the numerical method, various numerical tests, and a samplemore » of results for mildly eccentric orbits as well as ''zoom-whirl'' orbits.« less

40 CFR 35.548 - Award limitations.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Assistance Program (gap) § 35.548 Award limitations. (a) Each grant awarded under the General Assistance... exceed four years. (d) No award under this program shall result in reduction of total EPA grants for...

40 CFR 35.548 - Award limitations.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Assistance Program (gap) § 35.548 Award limitations. (a) Each grant awarded under the General Assistance... exceed four years. (d) No award under this program shall result in reduction of total EPA grants for...

The last SPR dinner awards

NASA Astrophysics Data System (ADS)

Tsurutani, Bruce

1992-03-01

Because the Solar-Planetary Relationships section of AGU has officially changed its name to Space Physics and Aeronomy (SPA), the December 10, 1991, section dinner award ceremony at the AGU Fall Meeting in San Francisco was the last of the series. Presumably an SPA dinner award series will be started under President-elect Andy Nagy.We have followed our tradition of recognizing the special talents of section members at the annual dinner. This year we had eight awardees. These awards are given in fun and are intended to be humorous. The selection committee defining the awards (the awards are changed regularly to keep people from trying to win one) and selecting the awardees will have to remain anonymous. (The committee is similar to Skull and Bones, but we are politically correct in that we allow women as members.)

Volume Measurements of Laser-generated Pits for In Situ Geochronology using KArLE (Potassium-Argon Laser Experiment)

NASA Technical Reports Server (NTRS)

French, R. A.; Cohen, B. A.; Miller, J. S.

2014-01-01

The Potassium-Argon Laser Experiment( KArLE), is composed of two main instruments: a spectrometer as part of the Laser-Induced Breakdown Spectroscopy (LIBS) method and a Mass Spectrometer (MS). The LIBS laser ablates a sample and creates a plasma cloud, generating a pit in the sample. The LIBS plasma is measured for K abundance in weight percent and the released gas is measured using the MS, which calculates Ar abundance in mols. To relate the K and Ar measurements, total mass of the ablated sample is needed but can be difficult to directly measure. Instead, density and volume are used to calculate mass, where density is calculated based on the elemental composition of the rock (from the emission spectrum) and volume is determined by pit morphology. This study aims to reduce the uncertainty for KArLE by analyzing pit volume relationships in several analog materials and comparing methods of pit volume measurements and their associated uncertainties.

NWWA Science Award given

NASA Astrophysics Data System (ADS)

Back, Bill

John G. Ferris, a U.S. Geological Survey retiree, received the National Water Well Association (NWWA) Science Award for 1985 on September 10, 1985, in Baltimore, Md. The award recognizes Ferris's renowned contributions to the science of groundwater.

Building Awards | NREL

Science.gov Websites

Mountain campus is designed to meet the Gold or Platinum standards of the U.S. Green Building Council's Research Facility. South Site Entrance Building South Site Entrance Building 2013 U.S. Green Buildings Building Awards Building Awards NREL's high-performance buildings are sustainability models for the

Specificities of Sightseeing Foot Tour Arrangement for History Related Street with Regard to Karl Marx Street in the Town of Irkutsk

NASA Astrophysics Data System (ADS)

Kulakov, A. I.; Shishkanov, V. S.

2017-11-01

The paper is devoted to the preparation of an innovative foot itinerary for tourists in Karl Marx Street in the town of Irkutsk. Methodology on preparation of sightseeing tours has been analysed by the authors. The analysis of the methodology has facilitated selecting the criteria to classify the excursions as well as the criteria for assessing and shortlisting the objects for excursion exposure. Some chosen criteria being used in tour arrangement and certain specificities of tour preparation have been revealed which are characteristic particularly for Karl Marx Street as a history-related one. It is also proved in the paper that the itinerary prepared for tourists is in full correspondence with the key innovation objectives in tourism.

14 CFR 1240.112 - Presentation of awards.

Code of Federal Regulations, 2010 CFR

2010-01-01

... CONTRIBUTIONS Awards for Scientific and Technical Contributions § 1240.112 Presentation of awards. (a) Monetary awards and accompanying written acknowledgments to employees of NASA will be presented in a formal... cognizant field installation or designee. (b) Monetary awards and accompanying written acknowledgments to...

Mapping a Space of Biography: Karl Triebold and the Waldschule of Senne I-Bielefeld (c.1923-1939)

ERIC Educational Resources Information Center

Thyssen, Geert

2012-01-01

Starting from a "life geography" of Karl Triebold, a leading figure in open-air education, this article provides an understanding of the seemingly ordinary but still idiosyncratic development of a German open-air school. Triebold's life's work, the fight against tuberculosis, conceived as character education through healthy occupation,…

Nuclear Fusion Award 2009 speech Nuclear Fusion Award 2009 speech

NASA Astrophysics Data System (ADS)

Sabbagh, Steven Anthony

2011-01-01

This is an exceptional moment in my career, and so I want to thank all of my teachers, colleagues and mentors who have made this possible. From my co-authors and myself, many thanks to the International Atomic Energy Agency, IOP Publishing, the Nuclear Fusion journal team, and the selection committee for the great honor of receiving this award. Also gratitude to Kikuchi-sensei, not only for the inventive and visionary creation of this award, but also for being a key mentor dating back to his efforts in producing high neutron output in JT-60U. It was also a great honor to receive the award directly from IAEA Deputy Director General Burkart during the 23rd IAEA Fusion Energy Conference in Daejeon. Receiving the award at this venue is particularly exciting as Daejeon is home to the new, next-generation KSTAR tokamak device that will lead key magnetic fusion research areas going forward. I would also like to thank the mayor of Daejeon, Dr Yum Hong-Chul, and all of the meeting organizers for giving us all a truly spectacular and singular welcoming event during which the award was presented. The research leading to the award would not have been possible without the support of the US Department of Energy, and I thank the Department for the continued funding of this research. Special mention must be made to a valuable co-author who is no longer with us, Professor A. Bondeson, who was a significant pioneer in resistive wall mode (RWM) research. I would like to thank my wife, Mary, for her infinite patience and encouragement. Finally, I would like to personally thank all of you that have approached and congratulated me directly. There are no units to measure how important your words have been in this regard. When notified that our paper had been shortlisted for the 2009 Nuclear Fusion Award, my co-authors responded echoing how I felt—honored to be included in such a fine collection of research by colleagues. It was unfathomable—would this paper follow the brilliant work

10 years of Elsevier/JQSRT awards

NASA Astrophysics Data System (ADS)

Stoop, José; Bernath, Peter F.; Mengüç, M. Pinar; Mishchenko, Michael I.; Rothman, Laurence S.

2017-10-01

The Elsevier award program administered by the Editorial Board of the Journal of Quantitative Spectroscopy and Radiative Transfer (JQSRT) was conceived in June of 2006 at the 9th Electromagnetic and Light Scattering Conference in St. Petersburg, Russia. Initially the program included three annual Elsevier/JQSRT awards for exceptional early-career scientists working in the main research fields covered by JQSRT: quantitative spectroscopy, radiative transfer, and electromagnetic scattering. In June of 2010 at the 12th Electromagnetic and Light Scattering Conference in Helsinki, Finland, it was decided to expand the award program to include three biennial Elsevier awards intended to celebrate fundamental life-time achievements of internationally recognized leaders in the same research fields. Finally, in 2013 the Elsevier award program was augmented to include a fourth annual early-career award in the category of atmospheric radiation and remote sensing.

Highlighting 2004 award-winning initiatives.

PubMed

2005-02-01

This issue takes a closer look at how five award-winning healthcare organizations are finding--and continually refining--innovative ways to provide high-quality healthcare. One of those organizations is Robert Wood Johnson University Hospital Hamilton, which recently was named the fourth healthcare winner of the annual Malcolm Baldrige National Quality Award. The Joint Commission on Accreditation of Healthcare Organizations recently selected two facilities in the hospital category--Stamford Hospital and Staten Island University Hospital--as recipients of the eighth annual Codman Award for their work in using outcomes measurement to promote quality care. The Reading Hospital and Medical Center received a Cheers Award from the Institute for Safe Medication Practices for its toolkit promoting patient safety. Sentara Healthcare System, top winner of the American Hospital Association's Quest for Quality Award, has been cited for its efforts to align its quality and safety goals with its organizational goals.

A generalized sine condition and performance comparison of Wolter type II and Wolter-Schwarzschild extreme ultraviolet telescopes

NASA Technical Reports Server (NTRS)

Saha, T. T.

1984-01-01

An equation similar to the Abbe sine condition is derived for a Wolter type II telescope. This equation and the sine condition are then combined to produce a so called generalized sine condition. Using the law of reflection, Fermat's principle, the generalized sine condition, and simple geometry the surface equations for a Wolter type II telescope and an equivalent Wolter-Schwarzschild telescope are calculated. The performances of the telescopes are compared in terms of rms blur circle radius at the Gaussian focal plane and at best focus.

22 CFR 226.14 - Special award conditions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Special award conditions. 226.14 Section 226.14 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT ADMINISTRATION OF ASSISTANCE AWARDS TO U.S. NON-GOVERNMENTAL ORGANIZATIONS Pre-award Requirements § 226.14 Special award conditions. If an applicant or...

22 CFR 226.11 - Pre-award policies.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Pre-award policies. 226.11 Section 226.11 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT ADMINISTRATION OF ASSISTANCE AWARDS TO U.S. NON-GOVERNMENTAL ORGANIZATIONS Pre-award Requirements § 226.11 Pre-award policies. (a) Use of grants and...

Examining faculty awards for gender equity and evolving values.

PubMed

Abbuhl, Stephanie; Bristol, Mirar N; Ashfaq, Hera; Scott, Patricia; Tuton, Lucy Wolf; Cappola, Anne R; Sonnad, Seema S

2010-01-01

Awards given to medical school faculty are one important mechanism for recognizing what is valued in academic medicine. There have been concerns expressed about the gender distribution of awards, and there is also a growing appreciation for the evolving accomplishments and talents that define academic excellence in the 21st century and that should be considered worthy of award recognition. Examine faculty awards at our institution for gender equity and evolving values. Recipient data were collected on awards from 1996 to 2007 inclusively at the University of Pennsylvania School of Medicine (SOM). Descriptions of each award also were collected. The female-to-male ratio of award recipients over the time span was reviewed for changes and trends. The title and text of each award announcement were reviewed to determine if the award represented a traditional or a newer concept of excellence in academic medicine. There were 21 annual awards given to a total of 59 clinical award recipients, 60 research award recipients, and 154 teaching award recipients. Women received 28% of research awards, 29% of teaching awards and 10% of clinical awards. Gender distribution of total awards was similar to that of SOM full-time faculty except in the clinical awards category. Only one award reflected a shift in the culture of individual achievement to one of collaboration and team performance. Examining both the recipients and content of awards is important to assure they reflect the current composition of diverse faculty and the evolving ideals of leadership and excellence in academic medicine.

Examining Faculty Awards for Gender Equity and Evolving Values

PubMed Central

Abbuhl, Stephanie; Bristol, Mirar N.; Ashfaq, Hera; Scott, Patricia; Tuton, Lucy Wolf; Cappola, Anne R.

2009-01-01

ABSTRACT BACKGROUND Awards given to medical school faculty are one important mechanism for recognizing what is valued in academic medicine. There have been concerns expressed about the gender distribution of awards, and there is also a growing appreciation for the evolving accomplishments and talents that define academic excellence in the 21st century and that should be considered worthy of award recognition. OBJECTIVE Examine faculty awards at our institution for gender equity and evolving values. METHODS Recipient data were collected on awards from 1996 to 2007 inclusively at the University of Pennsylvania School of Medicine (SOM). Descriptions of each award also were collected. The female-to-male ratio of award recipients over the time span was reviewed for changes and trends. The title and text of each award announcement were reviewed to determine if the award represented a traditional or a newer concept of excellence in academic medicine. MAIN RESULTS There were 21 annual awards given to a total of 59 clinical award recipients, 60 research award recipients, and 154 teaching award recipients. Women received 28% of research awards, 29% of teaching awards and 10% of clinical awards. Gender distribution of total awards was similar to that of SOM full-time faculty except in the clinical awards category. Only one award reflected a shift in the culture of individual achievement to one of collaboration and team performance. CONCLUSION Examining both the recipients and content of awards is important to assure they reflect the current composition of diverse faculty and the evolving ideals of leadership and excellence in academic medicine. PMID:19727968

45 CFR 74.11 - Pre-award policies.

Code of Federal Regulations, 2013 CFR

2013-10-01

... FOR AWARDS AND SUBAWARDS TO INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS, OTHER NONPROFIT ORGANIZATIONS, AND COMMERCIAL ORGANIZATIONS Pre-Award Requirements § 74.11 Pre-award policies. (a) Use of Grants and... 45 Public Welfare 1 2013-10-01 2013-10-01 false Pre-award policies. 74.11 Section 74.11 Public...

Vacuum Fluctuation Force on a Rigid Casimir Cavity in de Sitter and Schwarzschild-De Sitter Space-Time

NASA Astrophysics Data System (ADS)

Chen, Xiang

2012-11-01

We investigate the net force on a rigid Casimir cavity generated by vacuum fluctuations of electromagnetic field in three cases: de Sitter space-time, de Sitter space-time with weak gravitational field and Schwarzschild-de Sitter space-time. In de Sitter space-time the resulting net force follows the square inverse law but unfortunately it is too weak to be measurable due to the large universe radius. By introducing a weak gravitational field into the de Sitter space-time, we find that the net force can now be split into two parts, one is the gravitational force due to the induced effective mass between the two plates and the other one is generated by the metric structure of de Sitter space-time. In order to investigate the vacuum fluctuation force on the rigid cavity under strong gravitational field, we perform a similar analysis in Schwarzschild-de Sitter space-time and results are obtained in three different limits. The most interesting one is when the cavity gets closer to the horizon of a blackhole, square inverse law is recovered and the repulsive force due to negative energy/mass of the cavity now has an observable strength. More importantly the force changes from being repulsive to attractive when the cavity crosses the event horizon, so that the energy/mass of the cavity switches the sign, which suggests the unusual time direction inside the event horizon.

Over the horizon: Distinguishing the Schwarzschild spacetime and the R P3 spacetime using an Unruh-DeWitt detector

NASA Astrophysics Data System (ADS)

Ng, Keith K.; Mann, Robert B.; Martín-Martínez, Eduardo

2017-10-01

The RP3 geon and the Schwarzschild black hole are two black hole spacetimes which differ only behind the event horizon. We show that the thermal Hawking radiation emanating from the two black holes contains nontrivial correlations, that these correlations contain information about their interiors, and demonstrate that a particle detector can recover these correlations. In this manner, a simple particle detector can determine the structure behind the event horizon of an eternal black hole.

48 CFR 452.216-70 - Award Fee.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Award Fee. 452.216-70... SOLICITATION PROVISIONS AND CONTRACT CLAUSES Texts of Provisions and Clauses 452.216-70 Award Fee. As prescribed in 416.405, insert a clause substantially as follows: Award Fee (FEB 1988) The amount of award fee...

KARL: A Knowledge-Assisted Retrieval Language. Presentation visuals. M.S. Thesis Final Report, 1 Jul. 1985 - 31 Dec. 1987

NASA Technical Reports Server (NTRS)

Dominick, Wayne D. (Editor); Triantafyllopoulos, Spiros

1985-01-01

A collection of presentation visuals associated with the companion report entitled KARL: A Knowledge-Assisted Retrieval Language, is presented. Information is given on data retrieval, natural language database front ends, generic design objectives, processing capababilities and the query processing cycle.

10 CFR 600.17 - Contents of Award.

Code of Federal Regulations, 2013 CFR

2013-01-01

... of DOE and the recipient, consistent with the requirements of this part. [74 FR 44276, Aug. 28, 2009] ... 10 Energy 4 2013-01-01 2013-01-01 false Contents of Award. 600.17 Section 600.17 Energy DEPARTMENT... Award. Each financial assistance award shall be made on a Notice of Financial Assistance Award (NFAA...

10 CFR 600.17 - Contents of Award.

Code of Federal Regulations, 2012 CFR

2012-01-01

... of DOE and the recipient, consistent with the requirements of this part. [74 FR 44276, Aug. 28, 2009] ... 10 Energy 4 2012-01-01 2012-01-01 false Contents of Award. 600.17 Section 600.17 Energy DEPARTMENT... Award. Each financial assistance award shall be made on a Notice of Financial Assistance Award (NFAA...

10 CFR 600.17 - Contents of Award.

Code of Federal Regulations, 2014 CFR

2014-01-01

... of DOE and the recipient, consistent with the requirements of this part. [74 FR 44276, Aug. 28, 2009] ... 10 Energy 4 2014-01-01 2014-01-01 false Contents of Award. 600.17 Section 600.17 Energy DEPARTMENT... Award. Each financial assistance award shall be made on a Notice of Financial Assistance Award (NFAA...

10 CFR 600.17 - Contents of Award.

Code of Federal Regulations, 2011 CFR

2011-01-01

... of DOE and the recipient, consistent with the requirements of this part. [74 FR 44276, Aug. 28, 2009] ... 10 Energy 4 2011-01-01 2011-01-01 false Contents of Award. 600.17 Section 600.17 Energy DEPARTMENT... Award. Each financial assistance award shall be made on a Notice of Financial Assistance Award (NFAA...

10 CFR 600.17 - Contents of Award.

Code of Federal Regulations, 2010 CFR

2010-01-01

... of DOE and the recipient, consistent with the requirements of this part. [74 FR 44276, Aug. 28, 2009] ... 10 Energy 4 2010-01-01 2010-01-01 false Contents of Award. 600.17 Section 600.17 Energy DEPARTMENT... Award. Each financial assistance award shall be made on a Notice of Financial Assistance Award (NFAA...

Creativity Awards: Great Expectations?

ERIC Educational Resources Information Center

Kilgour, Mark; Sasser, Sheila; Koslow, Scott

2013-01-01

Given the creativity inherent in advertising, one useful measure of creativity may be the advertising creativity award. Although creativity awards have been used by academics, agencies, and clients as indicators of exemplary creative work, there is surprisingly little research as to what creative elements they actually represent. Senior agency…

Cost Reduction Incentive Awards. 1981 Winners.

ERIC Educational Resources Information Center

National Association of College and University Business Officers, Washington, DC.

Brief descriptions of 47 college programs recognized for awards in the National Association of College and University Officers/U. S. Steel Foundation Cost Reduction Incentive Awards Program are given. They include awards for: shower stall repair; chemical waste exchange; vibrating alarms for hearing-imparied; self-funding insurance consortium;…

Karl Heinrich Ulrichs: First Theorist of Erotic Age Orientation.

PubMed

Janssen, Diederik F

2017-01-01

The nomination of Karl Heinrich Ulrichs (1825-1895) as the first theorist of homosexuality may be placed in the oblique light of his eligibility for the nomination as the first theorist of erotic age orientation. In Ulrichs's pamphlets, "man-manly" homosexuality emerged as a particular age orientation, with a subsequent typological breakdown that, importantly, blended gender orientation and age orientation. Into the early 20th century, erotic age orientation remained bound up with the classification and emancipation of what here was demarcated as Urningsliebe. Ulrichs's pioneering and shifting comments on age eventually fed into his legal model of consenting adults in private. They also provide a starting point for the historical understanding of the trope of "grooming pedophile" as it, arguably, crossfaded with that of the "seducing homosexual" after the latter's depsychiatricization across the Western world.

Waterman Award nominations sought

NASA Astrophysics Data System (ADS)

Showstack, Randy

2012-10-01

The U.S. National Science Foundation (NSF) is accepting nominations for the 2013 Alan T. Waterman Award. The award, established in 1975 to commemorate NSF's first director, is the foundation's highest honor for promising, early-career researchers. Nominees are accepted from all sources, from any field of science and engineering that NSF supports. In addition to receiving a medal, the award recipient will also receive a $1,000,000 grant over 5 years for scientific research or advanced study in any field of science or engineering supported by NSF. Completed nomination packages are due by 31 October. For more information, see http://www.nsf.gov/od/waterman/waterman.jsp.

Elsevier/Spectrochimica Acta Atomic Spectroscopy Award 2014

NASA Astrophysics Data System (ADS)

Omenetto, Nicolo'; de Loos, Greet

2016-03-01

This is to announce the 2014 Elsevier/Spectrochimica Acta Award, the annual award honoring the most significant article(s) published in a volume. Elsevier makes this award on behalf of Spectrochimica Acta, Part B, to encourage the publication of top articles in this journal. All papers published during one year are considered for this award and the Editorial Advisory Board and the Guest Editor(s) of the special issue(s) are responsible for the selection. The award consists of a monetary prize of 1000 together with a presentation certificate.

Elsevier/Spectrochimica Acta atomic spectroscopy award 2015

NASA Astrophysics Data System (ADS)

Omenetto, Nicolo; de Loos-Vollebregt, Margaretha

2016-12-01

This is to announce the 2015 Elsevier/Spectrochimica Acta award, the annual award honoring the most significant article(s) published in a volume. Elsevier makes this award on behalf of Spectrochimica Acta, Part B, to encourage the publication of top articles in this journal. All papers published during one year are considered for this award and the Editorial Advisory Board and the Guest Editor(s) of the special issue(s) are responsible for the selection. The award consists of a monetary prize of 1000 together with a presentation certificate.

36 CFR § 1212.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-07-01

... GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 1212.605 Award. Award...) The term award includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program, whether or not the grant...

40 CFR 35.548 - Award limitations.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 1 2014-07-01 2014-07-01 false Award limitations. 35.548 Section 35... Assistance Program (gap) § 35.548 Award limitations. (a) Each grant awarded under the General Assistance Program shall be not less than $75,000. This limitation does not apply to additional funds that may become...

13 CFR 308.2 - Performance awards.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 13 Business Credit and Assistance 1 2014-01-01 2014-01-01 false Performance awards. 308.2 Section... PERFORMANCE INCENTIVES § 308.2 Performance awards. (a) A Recipient of Investment Assistance under parts 305 or 307 of this chapter may receive a performance award in connection with an Investment made on or after...

13 CFR 308.2 - Performance awards.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 13 Business Credit and Assistance 1 2013-01-01 2013-01-01 false Performance awards. 308.2 Section... PERFORMANCE INCENTIVES § 308.2 Performance awards. (a) A Recipient of Investment Assistance under parts 305 or 307 of this chapter may receive a performance award in connection with an Investment made on or after...

13 CFR 308.2 - Performance awards.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 13 Business Credit and Assistance 1 2011-01-01 2011-01-01 false Performance awards. 308.2 Section... PERFORMANCE INCENTIVES § 308.2 Performance awards. (a) A Recipient of Investment Assistance under parts 305 or 307 of this chapter may receive a performance award in connection with an Investment made on or after...

Supporting Young Writers with Award-Winning Books

ERIC Educational Resources Information Center

MacKay, Kathryn Lake; Ricks, Paul H.; Young, Terrell A.

2017-01-01

This article presents a way to use award-winning books as mentor texts for very young writers. Books were selected as mentor texts from the winners of the Australian Early Childhood Children's Book of the Year Award and the American Theodor Seuss Geisel Award. The authors explain the value of using award-winning texts in the classroom and describe…

EDITORIAL: The Nuclear Fusion Award The Nuclear Fusion Award

NASA Astrophysics Data System (ADS)

Kikuchi, M.

2011-01-01

The Nuclear Fusion Award ceremony for 2009 and 2010 award winners was held during the 23rd IAEA Fusion Energy Conference in Daejeon. This time, both 2009 and 2010 award winners were celebrated by the IAEA and the participants of the 23rd IAEA Fusion Energy Conference. The Nuclear Fusion Award is a paper prize to acknowledge the best distinguished paper among the published papers in a particular volume of the Nuclear Fusion journal. Among the top-cited and highly-recommended papers chosen by the Editorial Board, excluding overview and review papers, and by analyzing self-citation and non-self-citation with an emphasis on non-self-citation, the Editorial Board confidentially selects ten distinguished papers as nominees for the Nuclear Fusion Award. Certificates are given to the leading authors of the Nuclear Fusion Award nominees. The final winner is selected among the ten nominees by the Nuclear Fusion Editorial Board voting confidentially. 2009 Nuclear Fusion Award nominees For the 2009 award, the papers published in the 2006 volume were assessed and the following papers were nominated, most of which are magnetic confinement experiments, theory and modeling, while one addresses inertial confinement. Sabbagh S.A. et al 2006 Resistive wall stabilized operation in rotating high beta NSTX plasmas Nucl. Fusion 46 635-44 La Haye R.J. et al 2006 Cross-machine benchmarking for ITER of neoclassical tearing mode stabilization by electron cyclotron current drive Nucl. Fusion 46 451-61 Honrubia J.J. et al 2006 Three-dimensional fast electron transport for ignition-scale inertial fusion capsules Nucl. Fusion 46 L25-8 Ido T. et al 2006 Observation of the interaction between the geodesic acoustic mode and ambient fluctuation in the JFT-2M tokamak Nucl. Fusion 46 512-20 Plyusnin V.V. et al 2006 Study of runaway electron generation during major disruptions in JET Nucl. Fusion 46 277-84 Pitts R.A. et al 2006 Far SOL ELM ion energies in JET Nucl. Fusion 46 82-98 Berk H.L. et al 2006

Finding a New "Heimat" in the Wild West: Karl May and the German Western of the 1960s.

ERIC Educational Resources Information Center

Schneider, Tassilo

1995-01-01

Discusses Joe Hembus's "Western-Lexikon," a German encyclopedia of the western, and one particular entry: "Der Schatz im Silbersee," or "Treasure of Silver Lake," a uniquely German western adapted from a story by Karl May. Explores the impact that this film had on the European--and eventually, American--filmmaking…

[Experiences and results in hypertension screening in women between 20 and 65 years of age in Karl-Marx-City].

PubMed

Voigt, G; Börker, G; Edelmann, S; Hartung, A; Hartung, G; Heyne, S; Töpfer, V

1980-11-15

From 1975 to 1979 in the district of the City of Karl-Marx-Stadt 91,130 females at the age between 20 and 65 years were summoned to a gynaecologico-cardiological mass examination which was supported by computer. 56,460 females underwent the examination. According to the WHO-criteria two measurements of blood pressure were carried out, when increased blood pressure was present a third one and a fourth one by an examination group. A diagnostic standard programme was used. In the second measurement of blood pressure we established 19.8% of patients with hypertension and 28.6% patients with borderline values. 52.8% of the hypertensions were known. Of 10,685 females with known or established hypertension 10.1% underwent an optimum therapy. On the basis of these results a programme for the fight against hypertension was developed for the county Karl-Marx-Stadt.

Schwarzschild-de Sitter spacetime: The role of temperature in the emission of Hawking radiation

NASA Astrophysics Data System (ADS)

Pappas, Thomas; Kanti, Panagiota

2017-12-01

We consider a Schwarzschild-de Sitter (SdS) black hole, and focus on the emission of massless scalar fields either minimally or non-minimally coupled to gravity. We use six different temperatures, two black-hole and four effective ones for the SdS spacetime, as the question of the proper temperature for such a background is still debated in the literature. We study their profiles under the variation of the cosmological constant, and derive the corresponding Hawking radiation spectra. We demonstrate that only few of these temperatures may support significant emission of radiation. We finally compute the total emissivities for each temperature, and show that the non-minimal coupling constant of the scalar field to gravity also affects the relative magnitudes of the energy emission rates.

Numerical simulation of electromagnetic waves in Schwarzschild space-time by finite difference time domain method and Green function method

NASA Astrophysics Data System (ADS)

Jia, Shouqing; La, Dongsheng; Ma, Xuelian

2018-04-01

The finite difference time domain (FDTD) algorithm and Green function algorithm are implemented into the numerical simulation of electromagnetic waves in Schwarzschild space-time. FDTD method in curved space-time is developed by filling the flat space-time with an equivalent medium. Green function in curved space-time is obtained by solving transport equations. Simulation results validate both the FDTD code and Green function code. The methods developed in this paper offer a tool to solve electromagnetic scattering problems.

24 CFR 578.21 - Awarding funds.

Code of Federal Regulations, 2014 CFR

2014-04-01

... procedures provided in the NOFA and will award funds to recipients through a national competition based on... withdraw an award if the applicant does not satisfy all conditions imposed on it. Correcting all issues and... 24 Housing and Urban Development 3 2014-04-01 2013-04-01 true Awarding funds. 578.21 Section 578...

24 CFR 578.21 - Awarding funds.

Code of Federal Regulations, 2013 CFR

2013-04-01

... procedures provided in the NOFA and will award funds to recipients through a national competition based on... withdraw an award if the applicant does not satisfy all conditions imposed on it. Correcting all issues and... 24 Housing and Urban Development 3 2013-04-01 2013-04-01 false Awarding funds. 578.21 Section 578...

10 CFR 603.1260 - Expenditure-based award.

Code of Federal Regulations, 2010 CFR

2010-01-01

... adjustment does not exceed the total Government funds obligated to the award. Most Federal Government grants... Used in this Part § 603.1260 Expenditure-based award. A Federal Government assistance award for which...

[From Paul Flechsig to the Paul Flechsig Institute for Brain Research. Development of brain research at the Karl Marx University].

PubMed

Leibnitz, L; Werner, L; Schober, W; Brauer, K

1977-04-01

A review is given on the development of the brain research institute of the Karl-Marx-University of Leipzig during the directorates of Paul Flechsig (1883-1920), Richard Arwed Pfeifer (1925-1957), and Wolfgang Wünscher (1957-1971).

Michael Tomasello: Award for Distinguished Scientific Contributions.

PubMed

2015-11-01

The APA Awards for Distinguished Scientific Contributions are presented to persons who, in the opinion of the Committee on Scientific Awards, have made distinguished theoretical or empirical contributions to basic research in psychology. One of the 2015 award winners is Michael Tomasello, who received this award for "outstanding empirical and theoretical contributions to understanding what makes the human mind unique. Michael Tomasello's pioneering research on the origins of social cognition has led to revolutionary insights in both developmental psychology and primate cognition." Tomasello's award citation, biography, and a selected bibliography are presented here. (c) 2015 APA, all rights reserved).

Degrees and Certificates Awarded, 2001-2002.

ERIC Educational Resources Information Center

Coperthwaite, Corby A.; Jones, Dennis

This document reports on degrees and certificates awarded by the Connecticut community colleges during the 2001-02 academic year, using a set of eight categories. The colleges awarded 3,977 degrees and certificates in 2001-02. This represents a 1.3% increase over the previous year, and a 7.2% decrease since 1998. The colleges awarded 735…

Rebecca Knuth: LJ Teaching Award 2009

ERIC Educational Resources Information Center

Berry, John N., III

2009-01-01

This article profiles Rebecca Knuth, winner of the LJ Teaching Award for 2009. The way she plans a class she's teaching illustrates why she was nominated by her students and won the award. The award, which comes with a $5000 honorarium and a celebration at the American Library Association (ALA) Midwinter Meeting, is sponsored by ProQuest. For…

2 CFR 176.210 - Award term-Recovery Act transactions listed in Schedule of Expenditures of Federal Awards and...

Code of Federal Regulations, 2011 CFR

2011-01-01

... in Schedule of Expenditures of Federal Awards and Recipient Responsibilities for Informing... Recipient Responsibilities for Informing Subrecipients. The award term described in this section shall be...,” recipients agree to separately identify the expenditures for Federal awards under the Recovery Act on the...

2 CFR 176.210 - Award term-Recovery Act transactions listed in Schedule of Expenditures of Federal Awards and...

Code of Federal Regulations, 2014 CFR

2014-01-01

... in Schedule of Expenditures of Federal Awards and Recipient Responsibilities for Informing... Recipient Responsibilities for Informing Subrecipients. The award term described in this section shall be...,” recipients agree to separately identify the expenditures for Federal awards under the Recovery Act on the...

Reference method for total water in lint cotton by automated oven drying combined with volumetric Karl Fischer titration

USDA-ARS?s Scientific Manuscript database

In a preliminary study to measure total water in lint cotton we demonstrated that volumetric Karl Fischer Titration of moisture transported by a carrier gas from an attached small oven is more accurate than standard oven drying in air. The objective of the present study was to assess the measuremen...

Certification by the Karl Fischer method of the water content in SRM 2890, Water Saturated 1-Octanol, and the analysis of associated interlaboratory bias in the measurement process.

PubMed

Margolis, S A; Levenson, M

2000-05-01

The calibration of Karl Fischer instruments and reagents and the compensation for instrumental bias are essential to the accurate measurement of trace levels of water in organic and inorganic chemicals. A stable, nonhygroscopic standard, Water Saturated Octanol, which is compatible with the Karl Fischer reagents, has been prepared. This material, Standard Reference Material (SRM) 2890, is homogeneous and is certified to contain 39.24 +/- 0.85 mg water/mL (expanded uncertainty) of solution (47.3 +/- 1.0 mg water/g solution, expanded uncertainty) at 21.5 degrees C. The solubility of water in -octanol has been shown to be nearly constant between 10 degrees C and 30 degrees C (i.e., within 1% of the value at 21.5 degrees C). The results of an interlaboratory comparison exercise illustrate the utility of SRM 2890 in assessing the accuracy and bias of Karl Fischer instruments and measurements.

Resolving the Schwarzschild singularity in both classic and quantum gravity

NASA Astrophysics Data System (ADS)

Zeng, Ding-fang

2017-04-01

The Schwarzschild singularity's resolution has key values in cracking the key mysteries related with black holes, the origin of their horizon entropy and the information missing puzzle involved in their evaporations. We provide in this work the general dynamic inner metric of collapsing stars with horizons and with non-trivial radial mass distributions. We find that static central singularities are not the final state of the system. Instead, the final state of the system is a periodically zero-cross breathing ball. Through 3+1 decomposed general relativity and its quantum formulation, we establish a functional Schrödinger equation controlling the micro-state of this breathing ball and show that, the system configuration with all the matter concentrating on the central point is not the unique eigen-energy-density solution. Using a Bohr-Sommerfield like "orbital" quantisation assumption, we show that for each black hole of horizon radius rh, there are about e rh2 / ℓpl2 allowable eigen-energy-density profiles. This naturally leads to physic interpretations for the micro-origin of horizon entropy, as well as solutions to the information missing puzzle involved in Hawking radiations.

Detweiler's redshift invariant for spinning particles along circular orbits on a Schwarzschild background

NASA Astrophysics Data System (ADS)

Bini, Donato; Damour, Thibault; Geralico, Andrea; Kavanagh, Chris

2018-05-01

We study the metric perturbations induced by a classical spinning particle moving along a circular orbit on a Schwarzschild background, limiting the analysis to effects which are first order in spin. The particle is assumed to move on the equatorial plane and has its spin aligned with the z axis. The metric perturbations are obtained by using two different approaches, i.e., by working in two different gauges: the Regge-Wheeler gauge (using the Regge-Wheeler-Zerilli formalism) and a radiation gauge (using the Teukolsky formalism). We then compute the linear-in-spin contribution to the first-order self-force contribution to Detweiler's redshift invariant up to the 8.5 post-Newtonian order. We check that our result is the same in both gauges, as appropriate for a gauge-invariant quantity, and agrees with the currently known 3.5 post-Newtonian results.

The politics of psychiatry and the vicissitudes of faith circa 1950: Karl Stern's psychiatric novel.

PubMed

Burston, Daniel

2015-01-01

Karl Stern, MD (1906-1975) was the author of The Pillar of Fire (1951) and three nonfiction books on psychiatry, psychoanalysis, and religion. His novel, Through Dooms of Love (1960), written with the assistance of his friend and admirer Graham Greene, covers a number of topics that were to psychiatric theory, treatment, and research at mid-century, and reflects several features of his own personal and professional vicissitudes. © 2015 Wiley Periodicals, Inc.

Detection of Intrinsic Source Structure at ∼3 Schwarzschild Radii with Millimeter-VLBI Observations of SAGITTARIUS A*

NASA Astrophysics Data System (ADS)

Lu, Ru-Sen; Krichbaum, Thomas P.; Roy, Alan L.; Fish, Vincent L.; Doeleman, Sheperd S.; Johnson, Michael D.; Akiyama, Kazunori; Psaltis, Dimitrios; Alef, Walter; Asada, Keiichi; Beaudoin, Christopher; Bertarini, Alessandra; Blackburn, Lindy; Blundell, Ray; Bower, Geoffrey C.; Brinkerink, Christiaan; Broderick, Avery E.; Cappallo, Roger; Crew, Geoffrey B.; Dexter, Jason; Dexter, Matt; Falcke, Heino; Freund, Robert; Friberg, Per; Greer, Christopher H.; Gurwell, Mark A.; Ho, Paul T. P.; Honma, Mareki; Inoue, Makoto; Kim, Junhan; Lamb, James; Lindqvist, Michael; Macmahon, David; Marrone, Daniel P.; Martí-Vidal, Ivan; Menten, Karl M.; Moran, James M.; Nagar, Neil M.; Plambeck, Richard L.; Primiani, Rurik A.; Rogers, Alan E. E.; Ros, Eduardo; Rottmann, Helge; SooHoo, Jason; Spilker, Justin; Stone, Jordan; Strittmatter, Peter; Tilanus, Remo P. J.; Titus, Michael; Vertatschitsch, Laura; Wagner, Jan; Weintroub, Jonathan; Wright, Melvyn; Young, Ken H.; Zensus, J. Anton; Ziurys, Lucy M.

2018-05-01

We report results from very long baseline interferometric (VLBI) observations of the supermassive black hole in the Galactic center, Sgr A*, at 1.3 mm (230 GHz). The observations were performed in 2013 March using six VLBI stations in Hawaii, California, Arizona, and Chile. Compared to earlier observations, the addition of the APEX telescope in Chile almost doubles the longest baseline length in the array, provides additional uv coverage in the N–S direction, and leads to a spatial resolution of ∼30 μas (∼3 Schwarzschild radii) for Sgr A*. The source is detected even at the longest baselines with visibility amplitudes of ∼4%–13% of the total flux density. We argue that such flux densities cannot result from interstellar refractive scattering alone, but indicate the presence of compact intrinsic source structure on scales of ∼3 Schwarzschild radii. The measured nonzero closure phases rule out point-symmetric emission. We discuss our results in the context of simple geometric models that capture the basic characteristics and brightness distributions of disk- and jet-dominated models and show that both can reproduce the observed data. Common to these models are the brightness asymmetry, the orientation, and characteristic sizes, which are comparable to the expected size of the black hole shadow. Future 1.3 mm VLBI observations with an expanded array and better sensitivity will allow more detailed imaging of the horizon-scale structure and bear the potential for a deep insight into the physical processes at the black hole boundary.

32 CFR 37.125 - May I award or administer TIAs if I am authorized to award or administer other assistance...

Code of Federal Regulations, 2010 CFR

2010-07-01

... 32 National Defense 1 2010-07-01 2010-07-01 false May I award or administer TIAs if I am... INVESTMENT AGREEMENTS General § 37.125 May I award or administer TIAs if I am authorized to award or administer other assistance instruments? (a) You must have specific authorization to award or administer TIAs...

UK businesses bag innovation awards

NASA Astrophysics Data System (ADS)

Banks, Michael

2015-09-01

Five UK firms have received innovation awards from the Institute of Physics (IOP), which publishes Physics World. Hallmarq Veterinary Imaging, Metrasens, M Squared Lasers, Silixa and Tracerco have all won an IOP award for developing new innovative products.

Robotic Mining Competition Awards Ceremony

NASA Image and Video Library

2017-05-26

Team Astrobotics from The University of Alabama won the top award, the Joe Kosmo Award for Excellence, and several other awards, during NASA's 8th Annual Robotic Competition award ceremony inside the Apollo-Saturn V Center at the Kennedy Space Center Visitor Complex in Florida. More than 40 student teams from colleges and universities around the U.S. used their uniquely-designed mining robots to dig in a supersized sandbox filled with BP-1, or simulated Martian soil, and participated in other competition requirements, May 22-26, at the visitor complex. The Robotic Mining Competition is a NASA Human Exploration and Operations Mission Directorate project designed to encourage students in science, technology, engineering and math, or STEM fields. The project provides a competitive environment to foster innovative ideas and solutions that could be used on NASA's Journey to Mars.

48 CFR 852.273-74 - Award without exchanges.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Award without exchanges... Award without exchanges. As prescribed in 873.110(e), insert the following provision: Award Without Exchanges (JAN 2003) The Government intends to evaluate proposals and award a contract without exchanges...

Equilibrium configurations of perfect fluid orbiting Schwarzschild-de Sitter black holes

NASA Astrophysics Data System (ADS)

Stuchlík, Z.; Slaný, P.; Hledík, S.

2000-11-01

The hydrodynamical structure of perfect fluid orbiting Schwarzschild-de Sitter black holes is investigated for configurations with uniform distribution of angular momentum density. It is shown that in the black-hole backgrounds admitting the existence of stable circular geodesics, closed equipotential surfaces with a cusp, allowing the existence of toroidal accretion disks, can exist. Two surfaces with a cusp exist for the angular momentum density smaller than the one corresponding to marginally bound circular geodesics; the equipotential surface corresponding to the marginally bound circular orbit has just two cusps. The outer cusp is located nearby the static radius where the gravitational attraction is compensated by the cosmological repulsion. Therefore, due to the presence of a repulsive cosmological constant, the outflow from thick accretion disks can be driven by the same mechanism as the accretion onto the black hole. Moreover, properties of open equipotential surfaces in vicinity of the axis of rotation suggest a strong collimation effects of the repulsive cosmological constant acting on jets produced by the accretion disks.

Clark Receives Ocean Sciences Award

NASA Astrophysics Data System (ADS)

Roman, Michael R.; Clark, H. Lawrence

2008-09-01

H. Lawrence Clark received the 2008 Ocean Sciences Award at the 2008 Ocean Sciences Meeting, held 2-7 March 2008 in Orlando, Fla. The award is given in recognition of outstanding and long-standing service to the ocean sciences.

Lagrangian equations of motion of particles and photons in a Schwarzschild field

NASA Astrophysics Data System (ADS)

Ritus, V. I.

2015-11-01

The equations of motion of a particle in the gravitational field of a black hole are considered in a formulation that uses generalized coordinates, velocities, and accelerations and is convenient for finding the integrals of motion. The equations are rewritten in terms of the physical velocities and accelerations measured in the Schwarzschild frame by a stationary observer using proper local length and time standards. The attractive force due to the field and the centripetal acceleration of a particle is proportional to the particle kinetic energy m/\\sqrt{1 - v^2}, consistently with the fact that the particle kinetic energy and the photon energy \\hbarω in the field increase by the same factor compared with their values without a field. The attraction exerted on particles and photons by a gravitational field source is proportional to their kinetic energies. The particle trajectory in the ultrarelativistic limit v \\to 1 coincides with the photon trajectory.

Newly established AGU awards and lecture

NASA Astrophysics Data System (ADS)

Paredes, Beth; Kumar, Mohi

2012-05-01

The Sulzman Award for Excellence in Education and Mentoring (Biogeosciences section) recognizes AGU members who have sustained an active research career in a field related to biogeosciences while excelling as teachers and serving as role models for the next generation of female scientists. This new award acknowledges the importance of female mentors in enhancing gender balance in physical science career paths. The award is being endowed to honor Elizabeth Sulzman, an isotope biogeochemist and soil scientist, whose enthusiasm for teaching awed many undergraduates at Oregon State University. Current plans are to present the first Sulzman award at the 2013 Fall Meeting. Applicants must be women who are within 15 years of receiving their Ph.D., and nomination packages should include a cover letter, resumé, and three letters of recommendation. As they become available, more details will be posted on the Biogeosciences section Web site (http://www.agu.org/sections/biogeo/). The award will provide up to $1000 to one successful nominee each year, although the exact monetary amount is yet to be determined. AGU is currently accepting donations to endow this award; contact Victoria Thompson (vthompson@agu.org) to get involved.

Karl Schwarzschild Lecture: The Ups and Downs of the Hubble Constant (With 12 Figures)

NASA Astrophysics Data System (ADS)

Tammann, G. Andreas

2006-01-01

A brief history of the determination of the Hubble constant H_0 is given. Early attempts following Lemaitre (1927) gave much too high values due to errors of the magnitude scale, Malmquist bias and calibration problems. By 1962 most authors agreed that 75< H_0 <130. After 1975 a dichotomy arose with values near 100 and others around 55. The former came from apparent-magnitude-limited samples and were affected by Malmquist bias. New distance indicators were introduced; they were sometimes claimed to yield high values of H_0, but the most recent data lead to H_0 in the 60's, yet with remaining difficulties as to the zero-point of the respective distance indicators. SNe Ia with their large range and very small luminosity dispersion (avoiding Malmquist bias) offer a unique opportunity to determine the large-scale value of H_0. Their maximum luminosity can be well calibrated from 10 SNe Ia in local parent galaxies whose Cepheids have been observed with HST. An unforeseen difficulty - affecting all Cepheid distances - is that their P-L relation varies from galaxy to galaxy, presumably in function of metallicity. A proposed solution is summarized here. The conclusion is that H_0 = 63.2 +/- 1.3 (random) +/- 5.3 (systematic) on all scales. The expansion age becomes then (with Omega_m=0.3, Omega_Lambda=0.7) 15.1 Gyr.

R&D 100 Awards | NREL

Science.gov Websites

a cost of about $.50/watt. Learn more HP Apollo 8000 System HP Apollo 8000 System Uses component Award - HP Apollo 8000 System - Steve Hammond and Team 2008 Editor's Choice Award - Hybrid CIGS (copper

Gordon F. Kirkbright bursary award, 2019

NASA Astrophysics Data System (ADS)

2018-09-01

The Gordon F. Kirkbright bursary award is a prestigious annual award that assists a promising early career scientist of any nation to attend a recognised scientific meeting or visit a place of learning. (We define early career as being either a student, or an employee in a non-tenured academic post or in industry, within 7 years of award of PhD excluding career breaks).

14 CFR 1274.202 - Methods of award.

Code of Federal Regulations, 2010 CFR

2010-01-01

... Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION COOPERATIVE AGREEMENTS WITH COMMERCIAL FIRMS Pre-Award Requirements § 1274.202 Methods of award. (a) Competitive agreements. Consistent with 31 U.S.C. 6301(3), NASA uses competitive procedures to award cooperative agreements whenever possible...

49 CFR 663.21 - Pre-award audit requirements.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 49 Transportation 7 2010-10-01 2010-10-01 false Pre-award audit requirements. 663.21 Section 663.21 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL TRANSIT ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PRE-AWARD AND POST-DELIVERY AUDITS OF ROLLING STOCK PURCHASES Pre-Award Audits § 663.21 Pre-award audit...

Environmental Protection Agency Award Recipient Responsibilities

EPA Pesticide Factsheets

Itemized Award Phase information. Information about the Recipient's Responsibilities Upon Notification of the Award, The EPA Project Officer Responsibilities, and EPA Grant Specialists Responsibilities.

Step 4: Award Negotiation & Issuance

Cancer.gov

Before a grant can be awarded and accepted, several pre-award activities must happen to formalize the partnership. Ensuring compliance with federal laws, a review of costs and a negotiation of the appropriate funding level must all happen in order to rece

Award for Distinguished Scientific Contributions: Terry E. Robinson.

PubMed

2016-11-01

The APA Awards for Distinguished Scientific Contributions are presented to persons who, in the opinion of the Committee on Scientific Awards, have made distinguished theoretical or empirical contributions to basic research in psychology. One of the 2016 award winners is Terry E. Robinson, who received this award for "outstanding contributions to understanding the psychological and neural mechanisms underlying stimulant drug responses." Robinson's award citation, biography, and a selected bibliography are presented here. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

[Development, problems and results of specialty-specific genetic counseling at the Neurology Clinic of the Karl Marx University].

PubMed

Bachmann, H

1987-11-01

Genetic counselling for inherited neurological diseases has been established at the Clinic for Neurology of Karl Marx University. Comprehensive experiences have been got with the specific and sometimes markedly different problems and aims of counselling in Wilsons disease, X-linked recessive muscular dystrophies, myotonic dystrophy and other neuromuscular disorders, Huntingtons chorea and hereditary ataxias.

10 CFR 1023.329 - Payment of award.

Code of Federal Regulations, 2010 CFR

2010-01-01

... official. The agency will pay the amount awarded to the applicant within 60 days. ... 10 Energy 4 2010-01-01 2010-01-01 false Payment of award. 1023.329 Section 1023.329 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) CONTRACT APPEALS Procedures Relating to Awards Under the Equal...

32 CFR 37.1285 - Expenditure-based award.

Code of Federal Regulations, 2010 CFR

2010-07-01

... purposes for which the award was made. Most Federal Government grants and cooperative agreements are... National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE DoD GRANT AND AGREEMENT...-based award. A Federal Government contract or assistance award for which the amounts of interim payments...

36 CFR 1210.11 - Pre-award policies.

Code of Federal Regulations, 2012 CFR

2012-07-01

... RULES UNIFORM ADMINISTRATIVE REQUIREMENTS FOR GRANTS AND AGREEMENTS WITH INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Pre-Award Requirements § 1210.11 Pre-award policies... 36 Parks, Forests, and Public Property 3 2012-07-01 2012-07-01 false Pre-award policies. 1210.11...

13 CFR 308.3 - Planning performance awards.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Planning performance awards. 308.3 Section 308.3 Business Credit and Assistance ECONOMIC DEVELOPMENT ADMINISTRATION, DEPARTMENT OF COMMERCE PERFORMANCE INCENTIVES § 308.3 Planning performance awards. (a) A Recipient of Investment Assistance awarded...

BOOK REVIEW: Astronomie von Olbers bis Schwarzschild. Nationale Entwicklungen und internationale Beziehungen im 19. Jahrhundert (Acta Historica Astronomiae Vol. 16)

NASA Astrophysics Data System (ADS)

Sterken, C.; Dick, W. R.; Hamel, J.

2002-12-01

astronomers in his days, when his working place at Altona still belonged to the kingdom of Denmark. This paper is followed by a second one by the same author and deals with the correspondence of H. C. Schumacher and H C. Oersted (1777-1851) and shows how intense and diverse their cooperation was. In a subsequent paper, Wolfgang Kokott describes the role of the Astronomisches Jahrbuch (published from 1776 by the Royal Academy of Sciences at Berlin), a ranking international publication, with Bode's modest Berlin Observatory serving as a clearinghouse of information originating from virtually all European countries. "Karl Schwarzschild and the professionalisation of Astrophysics" is the title of Theodor Schmidt-Kaler's contribution and presents Schwarzschild's contributions to professionalization of astronomy: establishment of course lectures and a permanent astrophysical laboratory, a tight connection between teaching and research, stimulations and suggestions for astronomy at high school and for the formation of high school teachers, international organisation, and the planning of a southern observatory. Peter Habison describes the contribution of Leo de Ball (1853-1916, Director of the Kuffner Observatory in Vienna) to international astronomy. Internationalization in astronomy is also discussed in a following paper by Gudrun Wolfschmidt on the establishment of the Vereinigte Astronomische Gesellschaft, the international Astronomische Gesellschaft in 1863 and finally the International Astronomical Union in 1919. In the second but last paper of the book, Hilmar Duerbeck describes the history of the Chilean National Observatory, beginning with its origins out of Gilliss' US Naval Expedition to the Southern Hemisphere in 1849, over its directors Moesta, Vergara, Obrecht and Ristenpart, to the middle of the 20th century. The paper also includes the astronomical development at the Universidad Catolica and various international expeditions, which aimed at the observations of solar

Bose–Einstein graviton condensate in a Schwarzschild black hole

NASA Astrophysics Data System (ADS)

Alfaro, Jorge; Espriu, Domènec; Gabbanelli, Luciano

2018-01-01

We analyze in detail a previous proposal by Dvali and Gómez that black holes could be treated as consisting of a Bose–Einstein condensate of gravitons. In order to do so we extend the Einstein–Hilbert action with a chemical potential-like term, thus placing ourselves in a grand-canonical ensemble. The form and characteristics of this chemical potential-like piece are discussed in some detail. We argue that the resulting equations of motion derived from the action could be interpreted as the Gross–Pitaevskii equation describing a graviton Bose–Einstein condensate trapped by the black hole gravitational field. After this, we proceed to expand the ensuring equations of motion up to second order around the classical Schwarzschild metric so that some non-linear terms in the metric fluctuation are kept. Next we search for solutions and, modulo some very plausible assumptions, we find out that the condensate vanishes outside the horizon but is non-zero in its interior. Inspired by a linearized approximation around the horizon we are able to find an exact solution for the mean-field wave function describing the graviton Bose–Einstein condensate in the black hole interior. After this, we can rederive some of the relations involving the number of gravitons N and the black hole characteristics along the lines suggested by Dvali and Gómez.

14 CFR 1260.111 - Pre-award policies.

Code of Federal Regulations, 2010 CFR

2010-01-01

... Higher Education, Hospitals, and Other Non-Profit Organizations Pre-Award Requirements § 1260.111 Pre-award policies. (a) Use of grants and cooperative agreements, and contracts. In each instance, NASA... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Pre-award policies. 1260.111 Section 1260...

28 CFR 70.11 - Pre-award policies.

Code of Federal Regulations, 2014 CFR

2014-07-01

... AND AGREEMENTS (INCLUDING SUBAWARDS) WITH INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS AND OTHER NON-PROFIT ORGANIZATIONS Pre-Award Requirements § 70.11 Pre-award policies. (a) Use of grants and cooperative... 28 Judicial Administration 2 2014-07-01 2014-07-01 false Pre-award policies. 70.11 Section 70.11...

14 CFR 1260.111 - Pre-award policies.

Code of Federal Regulations, 2011 CFR

2011-01-01

... Higher Education, Hospitals, and Other Non-Profit Organizations Pre-Award Requirements § 1260.111 Pre-award policies. (a) Use of grants and cooperative agreements, and contracts. In each instance, NASA... 14 Aeronautics and Space 5 2011-01-01 2010-01-01 true Pre-award policies. 1260.111 Section 1260...

10 CFR 600.111 - Pre-award policies.

Code of Federal Regulations, 2014 CFR

2014-01-01

... Requirements for Grants and Cooperative Agreements With Institutions of Higher Education, Hospitals, and Other Nonprofit Organizations Pre-Award Requirements § 600.111 Pre-award policies. (a) Use of Grants and... 10 Energy 4 2014-01-01 2014-01-01 false Pre-award policies. 600.111 Section 600.111 Energy...

28 CFR 70.11 - Pre-award policies.

Code of Federal Regulations, 2011 CFR

2011-07-01

... AND AGREEMENTS (INCLUDING SUBAWARDS) WITH INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS AND OTHER NON-PROFIT ORGANIZATIONS Pre-Award Requirements § 70.11 Pre-award policies. (a) Use of grants and cooperative... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Pre-award policies. 70.11 Section 70.11...

28 CFR 70.11 - Pre-award policies.

Code of Federal Regulations, 2010 CFR

2010-07-01

... AND AGREEMENTS (INCLUDING SUBAWARDS) WITH INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS AND OTHER NON-PROFIT ORGANIZATIONS Pre-Award Requirements § 70.11 Pre-award policies. (a) Use of grants and cooperative... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Pre-award policies. 70.11 Section 70.11...

32 CFR 22.420 - Pre-award procedures.

Code of Federal Regulations, 2014 CFR

2014-07-01

... REGULATIONS DoD GRANTS AND AGREEMENTS-AWARD AND ADMINISTRATION Recipient Qualification Matters-General... the grants officer decides to make the award to the recipient, unless there are compelling reasons to... Defense at 2 CFR 1125.425) checking the EPLS for: (i) Potential recipients of prime awards; and (ii) A...

22 CFR 145.11 - Pre-award policies.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Pre-award policies. 145.11 Section 145.11 Foreign Relations DEPARTMENT OF STATE CIVIL RIGHTS GRANTS AND AGREEMENTS WITH INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Pre-Award Requirements § 145.11 Pre-award policies...

22 CFR 145.14 - Special award conditions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Special award conditions. 145.14 Section 145.14 Foreign Relations DEPARTMENT OF STATE CIVIL RIGHTS GRANTS AND AGREEMENTS WITH INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Pre-Award Requirements § 145.14 Special award...

Designing an effective recognition award program. Dispelling the myths.

PubMed

Cherrington, D J

1993-01-01

Recognition award programs are effective when valuable symbolic awards are presented in a meaningful award ceremony. Valuable symbolic awards are more than just expensive merchandise. The best awards are functional jewelry or office/home accessories made of precious materials (such as gold and diamonds) that contain some form of symbolism, such as the company logo or colors. Meaningful presentations make employees feel genuinely appreciated and increase their job satisfaction and company commitment. The awards should be presented in the presence of coworkers by a higher-level manager who can articulate the employee's contribution to the company. A careless and casual award presentation can make employees feel demeaned and unappreciated.

76 FR 19792 - Notice of Intent To Award-Grant Awards for the Provision of Civil Legal Services to Eligible...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-08

... LEGAL SERVICES CORPORATION Notice of Intent To Award--Grant Awards for the Provision of Civil Legal Services to Eligible Clients in Louisiana (Service Area LA- 1) Beginning June 2011 AGENCY: Legal...: The Legal Services Corporation (LSC) hereby announces its intention to award grants and contracts to...

Descriptive psychopathology, phenomenology, and the legacy of Karl Jaspers

PubMed Central

Häfner, Heinz

2015-01-01

With his early publications (1910-1913), Karl Jaspers created a comprehensive methodological arsenal for psychiatry, thus laying the foundation for descriptive psychopathology. Following Edmund Husserl, the founder of philosophical phenomenology, Jaspers introduced phenomenology into psychopathology as “static understanding,” ie, the unprejudiced intuitive reproduction (Vergegenwärtigung) and description of conscious phenomena. In a longitudinal perspective, “genetic understanding” based on empathy reveals how mental phenomena arise from mental phenomena. Severance in understanding of, or alienation from, meaningful connections is seen as indicating illness or transition of a natural development into a somatic process. Jaspers opted for philosophy early. After three terms of law, he switched to studying medicine, came to psychopathology after very little training in psychiatry; to psychology without ever studying psychology; and to a chair in philosophy without ever studying philosophy. In the fourth and subsequent editions of his General Psychopathology, imbued by his existential philosophy, Jaspers partly abandoned the descriptive method. PMID:25987860

Descriptive psychopathology, phenomenology, and the legacy of Karl Jaspers.

PubMed

Häfner, Heinz

2015-03-01

With his early publications (1910-1913), Karl Jaspers created a comprehensive methodological arsenal for psychiatry, thus laying the foundation for descriptive psychopathology. Following Edmund Husserl, the founder of philosophical phenomenology, Jaspers introduced phenomenology into psychopathology as "static understanding," ie, the unprejudiced intuitive reproduction (Vergegenwärtigung) and description of conscious phenomena. In a longitudinal perspective, "genetic understanding" based on empathy reveals how mental phenomena arise from mental phenomena. Severance in understanding of, or alienation from, meaningful connections is seen as indicating illness or transition of a natural development into a somatic process. Jaspers opted for philosophy early. After three terms of law, he switched to studying medicine, came to psychopathology after very little training in psychiatry; to psychology without ever studying psychology; and to a chair in philosophy without ever studying philosophy. In the fourth and subsequent editions of his General Psychopathology, imbued by his existential philosophy, Jaspers partly abandoned the descriptive method.

Manual of Military Decorations and Awards: DoD-Wide Performance and Valor Awards; Foreign Awards; Military Awards to Foreign Personnel and U.S. Public Health Service Officers; and Miscellaneous Information

DTIC Science & Technology

2010-11-23

Indies Campaign Medal Women’s Army Corps Service Medal World War II Victory Medal Yangtze Service Medal Table 3. Foreign Awards Awarded...Philippine Islands who served on active duty at any time between December 7, 1941, and December 31, 1946. (45) Yangtze Service Medal. Department of...operations in the Yangtze River Valley, China, between September 3, 1926, and October 21, 1927, and between March 1, 1930, and December 31, 1932

Frank H. Spedding award citation

NASA Astrophysics Data System (ADS)

Soderholm, Lynda

2003-02-01

Today it is my honor and my pleasure to present the Frank H. Spedding Award for Outstanding Contributions to the Science and Technology of the Rare Earths. Professor Spedding, after whom this award is named, was the former director of Ames Laboratory at Iowa State University. He received his Ph.D. in 1929 under the supervision of Professor G.N. Lewis and went on to receive the Langmuir Award in Pure Chemistry, awarded to a chemist, under 31 years old. With the advent of World War II he became involved with the Manhattan Project, and was present with Enrico Fermi during the first sustained pile reaction at the University of Chicago. Among Professor Spedding's most notable achievements was the development in the 1950s of a form of ion exchange displacement chromatography that permits the remarkably effective separation of neighboring rare-earth elements. Additionally, the Spedding team established the efficacy of EDTA in performing such separations.

Notification: Evaluation of EPA's Green Chemistry Challenge Awards and Use of Data from the Award Results

EPA Pesticide Factsheets

Project #OPE-FY18-0003, January 9, 2018. The OIG plans to begin preliminary research to evaluate the agency's Presidential Green Chemistry Challenge Awards and how the agency uses the data from the award nominations.

43 CFR 12.911 - Pre-award policies.

Code of Federal Regulations, 2011 CFR

2011-10-01

... With Institutions of Higher Education, Hospitals, and Other Non-Profit Organizations Pre-Award Requirements § 12.911 Pre-award policies. (a) Use of Grants and Cooperative Agreements, and Contracts. In each... 43 Public Lands: Interior 1 2011-10-01 2011-10-01 false Pre-award policies. 12.911 Section 12.911...

49 CFR 19.11 - Pre-award policies.

Code of Federal Regulations, 2011 CFR

2011-10-01

... AGREEMENTS WITH INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Pre-Award Requirements § 19.11 Pre-award policies. (a) Use of grants and cooperative agreements, and contracts. In each... 49 Transportation 1 2011-10-01 2011-10-01 false Pre-award policies. 19.11 Section 19.11...

22 CFR 518.11 - Pre-award policies.

Code of Federal Regulations, 2011 CFR

2011-04-01

... AGREEMENTS WITH INSTITUTIONS OF HIGHER EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Pre-Award Requirements § 518.11 Pre-award policies. (a) Use of Grants and Cooperative Agreements, and Contracts. In each... 22 Foreign Relations 2 2011-04-01 2009-04-01 true Pre-award policies. 518.11 Section 518.11...

43 CFR 12.911 - Pre-award policies.

Code of Federal Regulations, 2013 CFR

2013-10-01

... With Institutions of Higher Education, Hospitals, and Other Non-Profit Organizations Pre-Award Requirements § 12.911 Pre-award policies. (a) Use of Grants and Cooperative Agreements, and Contracts. In each... 43 Public Lands: Interior 1 2013-10-01 2013-10-01 false Pre-award policies. 12.911 Section 12.911...

43 CFR 12.911 - Pre-award policies.

Code of Federal Regulations, 2012 CFR

2012-10-01

... With Institutions of Higher Education, Hospitals, and Other Non-Profit Organizations Pre-Award Requirements § 12.911 Pre-award policies. (a) Use of Grants and Cooperative Agreements, and Contracts. In each... 43 Public Lands: Interior 1 2012-10-01 2011-10-01 true Pre-award policies. 12.911 Section 12.911...

45 CFR 63.17 - Amount of award.

Code of Federal Regulations, 2011 CFR

2011-10-01

... award. Federal assistance shall be provided only to meet allowable costs incurred by the award recipient... 45 Public Welfare 1 2011-10-01 2011-10-01 false Amount of award. 63.17 Section 63.17 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION GRANT PROGRAMS ADMINISTERED BY THE...

45 CFR 63.17 - Amount of award.

Code of Federal Regulations, 2013 CFR

2013-10-01

... award. Federal assistance shall be provided only to meet allowable costs incurred by the award recipient... 45 Public Welfare 1 2013-10-01 2013-10-01 false Amount of award. 63.17 Section 63.17 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION GRANT PROGRAMS ADMINISTERED BY THE...

45 CFR 63.17 - Amount of award.

Code of Federal Regulations, 2014 CFR

2014-10-01

... award. Federal assistance shall be provided only to meet allowable costs incurred by the award recipient... 45 Public Welfare 1 2014-10-01 2014-10-01 false Amount of award. 63.17 Section 63.17 Public Welfare Department of Health and Human Services GENERAL ADMINISTRATION GRANT PROGRAMS ADMINISTERED BY THE...

45 CFR 63.17 - Amount of award.

Code of Federal Regulations, 2012 CFR

2012-10-01

... award. Federal assistance shall be provided only to meet allowable costs incurred by the award recipient... 45 Public Welfare 1 2012-10-01 2012-10-01 false Amount of award. 63.17 Section 63.17 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION GRANT PROGRAMS ADMINISTERED BY THE...

NIH Career Development Awards in Clinical and Translational Science Award Institutions: Distinguishing Characteristics of Top Performing Sites

PubMed Central

Nakazono, Terry; Davidson, Pamela L.

2014-01-01

ABSTRACT Purpose To identify and disseminate the organizational characteristics of “top performing” National Institute of Health (NIH) Clinical and Translational Science Awards (CTSA) institutions in regards to career development, using the number of new K awards received per year to rank institutions and comparing these with non‐CTSA institutions. Methods The authors analyzed the organizational characteristics of all 61 CTSA institutions from 2006 to 2013 using the American Association of Medical Colleges Organizational Characteristics Database and K Award funding details using NIH RePORT. Results Five of the “top 10 performing” institutions are in the western region, and six out of the ten are public schools. Three of the “top 10 performing” institutions receive most of their K awards through two funding mechanisms—the K08 (mentored clinical scientist research award) and K23 (mentored patient‐oriented research career development awards). Notably, these three institutions lack a KL2 program. Conclusion The CTSA network of institutions is committed to developing the next generation of physician scientists in order to meet the pressing health needs of society. Educators and evaluators within this network may need to provide training to junior investigators beyond the traditional KL2 programs in order to advance their career development as physician scientists and clinical translational researchers. PMID:25044058

NIH Career Development Awards in Clinical and Translational Science Award institutions: distinguishing characteristics of top performing sites.

PubMed

Guerrero, Lourdes R; Nakazono, Terry; Davidson, Pamela L

2014-12-01

To identify and disseminate the organizational characteristics of "top performing" National Institute of Health (NIH) Clinical and Translational Science Awards (CTSA) institutions in regards to career development, using the number of new K awards received per year to rank institutions and comparing these with non-CTSA institutions. The authors analyzed the organizational characteristics of all 61 CTSA institutions from 2006 to 2013 using the American Association of Medical Colleges Organizational Characteristics Database and K Award funding details using NIH RePORT. Five of the "top 10 performing" institutions are in the western region, and six out of the ten are public schools. Three of the "top 10 performing" institutions receive most of their K awards through two funding mechanisms-the K08 (mentored clinical scientist research award) and K23 (mentored patient-oriented research career development awards). Notably, these three institutions lack a KL2 program. The CTSA network of institutions is committed to developing the next generation of physician scientists in order to meet the pressing health needs of society. Educators and evaluators within this network may need to provide training to junior investigators beyond the traditional KL2 programs in order to advance their career development as physician scientists and clinical translational researchers. © 2014 Wiley Periodicals, Inc.

2 CFR 182.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-01-01

... GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 182.605 Award. Award... includes: (1) A Federal grant or cooperative agreement, in the form of money or property in lieu of money... include: (1) Technical assistance that provides services instead of money. (2) Loans. (3) Loan guarantees...

An Analysis of Past Surgical Infection Society Award Recipients.

PubMed

Claridge, Jeffrey A; Banerjee, Aman; Zosa, Brenda M; Hydo, Lynn J; Lipsett, Pamela A; Barie, Philip S

2016-06-01

The Surgical Infection Society (SIS) through its foundation (FDTN) confers awards to individuals who demonstrate interest in researching infection in the surgical setting. We sought to characterize the research output from prior award recipients and determine the impact of these awards on the individual and the SIS. The SIS website was queried for the names of all past award recipients. A MEDLINE search of the recipients was performed. Total number of publications and publications in the society's journal, Surgical Infections (SI), were identified. Gender and leadership positions within SIS were determined. Meeting attendance and participation were assessed. Donations by scholarship recipient to the FDTN were evaluated. Between 1984 and 2012, 116 individuals received an SIS award or scholarship. Of these, 72% were male. There were 101 scholarships awarded, totaling nearly $3 million. Of the 19 new Junior Faculty Scholarships awarded, four were to consecutive recipients (CR). There were 11 clinical evaluative award scholarships awarded, three to CR. There were 100 Resident/Fellow scholarships awarded, and of these, 22 were awarded to CR. Past recipients had multiple publications (median total publications = 27; interquartile range (IQR): Nine to 62) and published multiple papers on the topic for which they received an award (median two; IQR: Zero to four). Recipients did not publish in SI (median SI publications = zero; IQR: Zero to one). There was no substantial difference in the number of publications by gender. Multiple awards (MA) were conferred to 26 (22%) individuals. Six (5.1%) assumed an executive position within SIS, two (1.7%) became SIS president. Those who received MA were more likely to serve as an officer than those who only received one award (15% vs. 2%, p = 0.02). Scholarships have a large benefit for individual recipients; however, the benefit to the society remains harder to quantify.

Massey Award Given to Harvey Tananbaum

NASA Astrophysics Data System (ADS)

2010-06-01

Dr. Harvey Tananbaum, director of the Chandra X-ray Center, has been selected as the recipient of the 2010 Massey Award for his career accomplishments in high-energy astrophysics in space. The Massey Award is given by the Royal Society of London and the Committee of Space Research (COSPAR) in memory of Sir Harrie Massey, past Physical Secretary of the Society and member of the COSPAR Bureau. The prestigious award recognizes outstanding contributions to the development of space research in which a leadership role is of particular importance. Dr. Harvey Tananbaum began his career at American Science and Engineering and has been an astrophysicist at the Smithsonian Astrophysical Observatory since 1973. He was involved with pioneering X-ray astronomy missions including UHURU and the Einstein Observatory. Beginning in 1976, Dr. Tananbaum, along with Nobel Prize winner Dr. Riccardo Giacconi, led the team that proposed to NASA to study and design a large X-ray telescope. This project was launched 23 years later in 1999 as the Chandra X-ray Observatory, becoming NASA's flagship X-ray telescope. Dr. Tananbaum has served as the director of the Chandra X-ray Center since 1991. Dr. Tananbaum has received numerous awards from NASA as well as from other agencies and institutions, including the American Astronomical Society's Bruno Rossi Award in 2004 along with Chandra Project Scientist Martin Weisskopf. He is a fellow of the American Association for the Advancement of Science, and in 2005 was elected as a member of the United States National Academy of Science. The presentation of the Massey Award, along with the gold medal that accompanies it, will be made at the upcoming 2010 COSPAR meeting in Bremen, Germany in July. NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program for NASA's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory controls Chandra's science and flight operations from Cambridge, Mass. A complete

5 CFR 2610.311 - Payment of award.

Code of Federal Regulations, 2010 CFR

2010-01-01

... THE EQUAL ACCESS TO JUSTICE ACT Procedures for Considering Applications § 2610.311 Payment of award..., Suite 500, 1201 New York Avenue NW., Washington, DC 20005-3917. The Office will pay the amount awarded to the applicant within 60 days, unless judicial review of the award or of the underlying decision of...

22 CFR 134.30 - Payment of award.

Code of Federal Regulations, 2010 CFR

2010-04-01

... will pay the amount awarded to the applicant within 60 days, unless judicial review of the award or of... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Payment of award. 134.30 Section 134.30 Foreign Relations DEPARTMENT OF STATE MISCELLANEOUS EQUAL ACCESS TO JUSTICE ACT; IMPLEMENTATION Procedures for...

17 CFR 201.59 - Payment of award.

Code of Federal Regulations, 2010 CFR

2010-04-01

... as authorized by law, unless judicial review of the award has been sought by the applicant. [54 FR... Regulations Pertaining to the Equal Access to Justice Act § 201.59 Payment of award. An applicant seeking... decision granting the award, accompanied by a sworn statement that the applicant will not seek review of...

[Territorial differences in the occurrence of caries in Karl Marx Stadt children and adolescent after 12 years of water fluoridation].

PubMed

Künzel, W

1976-01-01

Cariostatistical comparisons made since the start of drinking-water fluoridation in Karl-Marx-Stadt suggested territorial differences in the prevalence of dental decay. In the present paper an attempt is made to analyse the problems involved, with due consideration being given to both demographic and ecological factors.

NICBR Announces First Collaboration Project Awards | Poster

Cancer.gov

Courtesy of the NICBR Public Affairs/Community Relations Subcommittee The National Interagency Confederation for Biological Research (NICBR) announced the 2012 NICBR Collaboration Project Award (CPA) Program winners in December. The award, the first of its kind for NICBR, was adapted from the National Cancer Institute’s (NCI’s) Young Investigator Award Program. This year, the

15 CFR 18.6 - Standards for awards.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Standards for awards. 18.6 Section 18.6 Commerce and Foreign Trade Office of the Secretary of Commerce ATTORNEY'S FEES AND OTHER EXPENSES General Provisions § 18.6 Standards for awards. (a) A prevailing applicant may receive an award for fees...

23 CFR 1350.7 - Post-award requirements.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 23 Highways 1 2012-04-01 2012-04-01 false Post-award requirements. 1350.7 Section 1350.7 Highways... MOTORCYCLIST SAFETY PROGRAM § 1350.7 Post-award requirements. (a) Within 30 days after notification of award but in no event later than September 12 of each year, a State must submit electronically to the agency...

23 CFR 1350.7 - Post-award requirements.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 23 Highways 1 2010-04-01 2010-04-01 false Post-award requirements. 1350.7 Section 1350.7 Highways... MOTORCYCLIST SAFETY PROGRAM § 1350.7 Post-award requirements. (a) Within 30 days after notification of award but in no event later than September 12 of each year, a State must submit electronically to the agency...

23 CFR 1350.7 - Post-award requirements.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 23 Highways 1 2011-04-01 2011-04-01 false Post-award requirements. 1350.7 Section 1350.7 Highways... MOTORCYCLIST SAFETY PROGRAM § 1350.7 Post-award requirements. (a) Within 30 days after notification of award but in no event later than September 12 of each year, a State must submit electronically to the agency...

31 CFR 7.6 - Effect of awards.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Effect of awards. 7.6 Section 7.6 Money and Finance: Treasury Office of the Secretary of the Treasury EMPLOYEE INVENTIONS § 7.6 Effect of awards. The acceptance by an employee of a cash award for performance which constitutes an invention...

Directory of Awards. FY 1986.

ERIC Educational Resources Information Center

National Science Foundation, Washington, DC. Directorate for Science and Engineering Education.

The National Science Foundation (NSF) provides awards for education and research in the sciences, mathematics, and engineering. This publication contains information on fiscal year 1986 awards. An introductory section reviews the goals of NSF's education program and the long-range goals of the Directorate for Science and Engineering Education.…

42 CFR 64.6 - Awards.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 42 Public Health 1 2010-10-01 2010-10-01 false Awards. 64.6 Section 64.6 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.6 Awards. (a) Criteria. Within the limits of available funds, the...

42 CFR 64.6 - Awards.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 42 Public Health 1 2013-10-01 2013-10-01 false Awards. 64.6 Section 64.6 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.6 Awards. (a) Criteria. Within the limits of available funds, the...

42 CFR 64.6 - Awards.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 42 Public Health 1 2011-10-01 2011-10-01 false Awards. 64.6 Section 64.6 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.6 Awards. (a) Criteria. Within the limits of available funds, the...

42 CFR 64.6 - Awards.

Code of Federal Regulations, 2012 CFR

2012-10-01

... 42 Public Health 1 2012-10-01 2012-10-01 false Awards. 64.6 Section 64.6 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.6 Awards. (a) Criteria. Within the limits of available funds, the...

42 CFR 64.6 - Awards.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 42 Public Health 1 2014-10-01 2014-10-01 false Awards. 64.6 Section 64.6 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES FELLOWSHIPS, INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.6 Awards. (a) Criteria. Within the limits of available funds, the...

40 CFR 35.688 - Award limitations.

Code of Federal Regulations, 2010 CFR

2010-07-01

... protection program or agrees to establish an approvable program within four years of the initial award. (b... within the four-year period after initial award. After the four-year period expires, the Regional...

10 CFR 603.830 - Pre-award costs.

Code of Federal Regulations, 2010 CFR

2010-01-01

... at the recipient's risk (e.g., DOE is not obligated to reimburse the costs if, for any reason, the recipient does not receive an award, or if the award is less than anticipated and inadequate to cover the... 10 Energy 4 2010-01-01 2010-01-01 false Pre-award costs. 603.830 Section 603.830 Energy DEPARTMENT...

10 CFR 603.830 - Pre-award costs.

Code of Federal Regulations, 2013 CFR

2013-01-01

... at the recipient's risk (e.g., DOE is not obligated to reimburse the costs if, for any reason, the recipient does not receive an award, or if the award is less than anticipated and inadequate to cover the... 10 Energy 4 2013-01-01 2013-01-01 false Pre-award costs. 603.830 Section 603.830 Energy DEPARTMENT...

10 CFR 603.830 - Pre-award costs.

Code of Federal Regulations, 2012 CFR

2012-01-01

... at the recipient's risk (e.g., DOE is not obligated to reimburse the costs if, for any reason, the recipient does not receive an award, or if the award is less than anticipated and inadequate to cover the... 10 Energy 4 2012-01-01 2012-01-01 false Pre-award costs. 603.830 Section 603.830 Energy DEPARTMENT...

10 CFR 603.830 - Pre-award costs.

Code of Federal Regulations, 2014 CFR

2014-01-01

... at the recipient's risk (e.g., DOE is not obligated to reimburse the costs if, for any reason, the recipient does not receive an award, or if the award is less than anticipated and inadequate to cover the... 10 Energy 4 2014-01-01 2014-01-01 false Pre-award costs. 603.830 Section 603.830 Energy DEPARTMENT...

10 CFR 603.830 - Pre-award costs.

Code of Federal Regulations, 2011 CFR

2011-01-01

... at the recipient's risk (e.g., DOE is not obligated to reimburse the costs if, for any reason, the recipient does not receive an award, or if the award is less than anticipated and inadequate to cover the... 10 Energy 4 2011-01-01 2011-01-01 false Pre-award costs. 603.830 Section 603.830 Energy DEPARTMENT...

28 CFR 523.16 - Lump sum awards.

Code of Federal Regulations, 2012 CFR

2012-07-01

... TRANSFER COMPUTATION OF SENTENCE Extra Good Time § 523.16 Lump sum awards. Any staff member may recommend to the Warden the approval of an inmate for a lump sum award of extra good time. Such recommendations... make lump sum awards of extra good time not to exceed thirty days. If the recommendation is for an...

28 CFR 523.16 - Lump sum awards.

Code of Federal Regulations, 2010 CFR

2010-07-01

... TRANSFER COMPUTATION OF SENTENCE Extra Good Time § 523.16 Lump sum awards. Any staff member may recommend to the Warden the approval of an inmate for a lump sum award of extra good time. Such recommendations... make lump sum awards of extra good time not to exceed thirty days. If the recommendation is for an...

28 CFR 523.16 - Lump sum awards.

Code of Federal Regulations, 2013 CFR

2013-07-01

... TRANSFER COMPUTATION OF SENTENCE Extra Good Time § 523.16 Lump sum awards. Any staff member may recommend to the Warden the approval of an inmate for a lump sum award of extra good time. Such recommendations... make lump sum awards of extra good time not to exceed thirty days. If the recommendation is for an...

28 CFR 523.16 - Lump sum awards.

Code of Federal Regulations, 2011 CFR

2011-07-01

... TRANSFER COMPUTATION OF SENTENCE Extra Good Time § 523.16 Lump sum awards. Any staff member may recommend to the Warden the approval of an inmate for a lump sum award of extra good time. Such recommendations... make lump sum awards of extra good time not to exceed thirty days. If the recommendation is for an...

28 CFR 523.16 - Lump sum awards.

Code of Federal Regulations, 2014 CFR

2014-07-01

... TRANSFER COMPUTATION OF SENTENCE Extra Good Time § 523.16 Lump sum awards. Any staff member may recommend to the Warden the approval of an inmate for a lump sum award of extra good time. Such recommendations... make lump sum awards of extra good time not to exceed thirty days. If the recommendation is for an...

32 CFR 644.118 - Awards.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 32 National Defense 4 2011-07-01 2011-07-01 false Awards. 644.118 Section 644.118 National Defense Department of Defense (Continued) DEPARTMENT OF THE ARMY (CONTINUED) REAL PROPERTY REAL ESTATE HANDBOOK... satisfactory, e.g., the history of past awards at this project or in the same judicial district, the basis used...

32 CFR 21.620 - Award.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 32 National Defense 1 2010-07-01 2010-07-01 false Award. 21.620 Section 21.620 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE DoD GRANT AND AGREEMENT REGULATIONS DoD GRANTS AND AGREEMENTS-GENERAL MATTERS Definitions § 21.620 Award. A grant, cooperative agreement, technology investment...

32 CFR 21.620 - Award.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 32 National Defense 1 2012-07-01 2012-07-01 false Award. 21.620 Section 21.620 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE DoD GRANT AND AGREEMENT REGULATIONS DoD GRANTS AND AGREEMENTS-GENERAL MATTERS Definitions § 21.620 Award. A grant, cooperative agreement, technology investment...

32 CFR 21.620 - Award.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 32 National Defense 1 2014-07-01 2014-07-01 false Award. 21.620 Section 21.620 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE DoD GRANT AND AGREEMENT REGULATIONS DoD GRANTS AND AGREEMENTS-GENERAL MATTERS Definitions § 21.620 Award. A grant, cooperative agreement, technology investment...

32 CFR 21.620 - Award.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 32 National Defense 1 2011-07-01 2011-07-01 false Award. 21.620 Section 21.620 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE DoD GRANT AND AGREEMENT REGULATIONS DoD GRANTS AND AGREEMENTS-GENERAL MATTERS Definitions § 21.620 Award. A grant, cooperative agreement, technology investment...

32 CFR 21.620 - Award.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 32 National Defense 1 2013-07-01 2013-07-01 false Award. 21.620 Section 21.620 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE DoD GRANT AND AGREEMENT REGULATIONS DoD GRANTS AND AGREEMENTS-GENERAL MATTERS Definitions § 21.620 Award. A grant, cooperative agreement, technology investment...

Campus Technology Innovators Awards 2010

ERIC Educational Resources Information Center

Lloyd, Meg; Raths, David

2010-01-01

Each year in judging the Campus Technology Innovators awards, the authors have the privilege of reading through hundreds of fascinating examples of technology innovation on campus. Nominated projects cover the gamut of technology areas, from assessment and advising to wireless and web 2.0. This article presents 11 innovator award winners of this…

78 FR 64249 - Notice of Intent To Award-Grant Awards for the Provision of Civil Legal Services to Eligible Low...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-28

... LEGAL SERVICES CORPORATION Notice of Intent To Award--Grant Awards for the Provision of Civil Legal Services to Eligible Low-Income Clients Beginning January 1, 2014 AGENCY: Legal Services Corporation. ACTION: Announcement of intention to make FY 2014 Competitive Grant Awards. SUMMARY: The Legal...

77 FR 64551 - Notice of Intent to Award-Grant Awards for the Provision of Civil Legal Services to Eligible Low...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-22

... LEGAL SERVICES CORPORATION Notice of Intent to Award--Grant Awards for the Provision of Civil Legal Services to Eligible Low-Income Clients Beginning January 1, 2013 AGENCY: Legal Services Corporation. ACTION: Announcement of intention to make FY 2013 Competitive Grant Awards. SUMMARY: The Legal...

76 FR 68221 - Notice of Intent To Award-Grant Awards for the Provision of Civil Legal Services to Eligible Low...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-03

... LEGAL SERVICES CORPORATION Notice of Intent To Award--Grant Awards for the Provision of Civil Legal Services to Eligible Low-Income Clients Beginning January 1, 2012 AGENCY: Legal Services Corporation. ACTION: Announcement of intention to make FY 2012 Competitive Grant Awards. SUMMARY: The Legal...

20 CFR 10.413 - If a person dies while receiving a schedule award, to whom is the balance of the schedule award...

Code of Federal Regulations, 2010 CFR

2010-04-01

... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false If a person dies while receiving a schedule award, to whom is the balance of the schedule award payable? 10.413 Section 10.413 Employees' Benefits... balance of the schedule award payable? The circumstances under which the balance of a schedule award may...

20 CFR 10.413 - If a person dies while receiving a schedule award, to whom is the balance of the schedule award...

Code of Federal Regulations, 2011 CFR

2011-04-01

... 20 Employees' Benefits 1 2011-04-01 2011-04-01 false If a person dies while receiving a schedule award, to whom is the balance of the schedule award payable? 10.413 Section 10.413 Employees' Benefits... balance of the schedule award payable? The circumstances under which the balance of a schedule award may...

40 CFR 105.16 - How are award winners publicized?

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 22 2011-07-01 2011-07-01 false How are award winners publicized? 105.16 Section 105.16 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS RECOGNITION AWARDS UNDER THE CLEAN WATER ACT Awards Recognition § 105.16 How are award winners...

40 CFR 105.16 - How are award winners publicized?

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 23 2012-07-01 2012-07-01 false How are award winners publicized? 105.16 Section 105.16 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS RECOGNITION AWARDS UNDER THE CLEAN WATER ACT Awards Recognition § 105.16 How are award winners...

40 CFR 105.16 - How are award winners publicized?

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 22 2014-07-01 2013-07-01 true How are award winners publicized? 105.16 Section 105.16 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS RECOGNITION AWARDS UNDER THE CLEAN WATER ACT Awards Recognition § 105.16 How are award winners...

40 CFR 105.16 - How are award winners publicized?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 21 2010-07-01 2010-07-01 false How are award winners publicized? 105.16 Section 105.16 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS RECOGNITION AWARDS UNDER THE CLEAN WATER ACT Awards Recognition § 105.16 How are award winners...

Women in Aerospace Awards

NASA Image and Video Library

2010-10-26

NASA Deputy Administrator Lori Garver speaks after being given the Women in Aerospace's Outstanding Member Award at the organization's annual awards ceremony and banquet held at the Ritz-Carlton Hotel in Arlington, VA on Tuesday, Oct. 26, 2010. Four current NASA leaders and one retiree were recognized for their work by Women in Aerospace. The event celebrates women's professional excellence in aerospace and honors women who have made outstanding contributions to the aerospace community. Photo Credit: (NASA/Bill Ingalls)

Women in Aerospace Awards

NASA Image and Video Library

2010-10-26

NASA's Langley Research Center Lesa Roe speaks after being given the Women in Aerospace's Leadership Award at the organization's annual awards ceremony and banquet held at the Ritz-Carlton Hotel in Arlington, VA on Tuesday, Oct. 26, 2010. Four current NASA leaders and one retiree were recognized for their work by Women in Aerospace. The event celebrates women's professional excellence in aerospace and honors women who have made outstanding contributions to the aerospace community. Photo Credit: (NASA/Bill Ingalls)

Nominations sought for rcn fellowship awards.

PubMed

Harwood, Tricia

2006-09-20

Do you know of an RCN member who has made an outstanding contribution either to nursing or to the RCN? If so, there is an opportunity for you to nominate them for an award. The RCN is looking for nominations for RCN fellowships, honorary fellowships and the awards of merit. These honours are awarded by RCN council and will be given at congress 2007 in Harrogate. The nomination forms and guidance are available at the RCN website, www.rcn.org.uk . The closing date is November 16.

40 CFR 105.14 - How are award winners notified?

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 22 2014-07-01 2013-07-01 true How are award winners notified? 105.14 Section 105.14 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS RECOGNITION AWARDS UNDER THE CLEAN WATER ACT Awards Recognition § 105.14 How are award winners notified? EPA...

40 CFR 105.14 - How are award winners notified?

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 22 2011-07-01 2011-07-01 false How are award winners notified? 105.14 Section 105.14 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS RECOGNITION AWARDS UNDER THE CLEAN WATER ACT Awards Recognition § 105.14 How are award winners notified? EPA...

40 CFR 105.14 - How are award winners notified?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 21 2010-07-01 2010-07-01 false How are award winners notified? 105.14 Section 105.14 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS RECOGNITION AWARDS UNDER THE CLEAN WATER ACT Awards Recognition § 105.14 How are award winners notified? EPA...

40 CFR 105.14 - How are award winners notified?

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 23 2012-07-01 2012-07-01 false How are award winners notified? 105.14 Section 105.14 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS RECOGNITION AWARDS UNDER THE CLEAN WATER ACT Awards Recognition § 105.14 How are award winners notified? EPA...

Comparison between amperometric and true potentiometric end-point detection in the determination of water by the Karl Fischer method.

PubMed

Cedergren, A

1974-06-01

A rapid and sensitive method using true potentiometric end-point detection has been developed and compared with the conventional amperometric method for Karl Fischer determination of water. The effect of the sulphur dioxide concentration on the shape of the titration curve is shown. By using kinetic data it was possible to calculate the course of titrations and make comparisons with those found experimentally. The results prove that the main reaction is the slow step, both in the amperometric and the potentiometric method. Results obtained in the standardization of the Karl Fischer reagent showed that the potentiometric method, including titration to a preselected potential, gave a standard deviation of 0.001(1) mg of water per ml, the amperometric method using extrapolation 0.002(4) mg of water per ml and the amperometric titration to a pre-selected diffusion current 0.004(7) mg of water per ml. Theories and results dealing with dilution effects are presented. The time of analysis was 1-1.5 min for the potentiometric and 4-5 min for the amperometric method using extrapolation.

["Homesickness and crime"--a contribution of Karl Jaspers to criminal psychology].

PubMed

Bachhiesl, Sonja Maria

2009-01-01

Even a century after its first publication in "Archives of Criminology" (in German: Archiv für Kriminologie), the doctoral thesis of Karl Jaspers (1883-1969), which was newly edited in 1996, continues to be of interest. Although the crimes described by Jaspers, which took place in a rural area, do no longer occur in this form just as the rural culture itself has disappeared, this paper nevertheless contains reflections that may also be relevant for the interpretation of modern potentials of conflict and violence and crimes rooted therein. The former homesickness has developed into novel phenomena of uprooting. In both cases, problems of maladjustment are a contributing factor to crime motivation. Thus despite all terminological and methodological change, Jaspers' thesis is an example for the continuing relevance of certain subjects in criminological discourse.

Non-Schwarzschild black-hole metric in four dimensional higher derivative gravity: Analytical approximation

NASA Astrophysics Data System (ADS)

Kokkotas, K. D.; Konoplya, R. A.; Zhidenko, A.

2017-09-01

Higher derivative extensions of Einstein gravity are important within the string theory approach to gravity and as alternative and effective theories of gravity. H. Lü, A. Perkins, C. Pope, and K. Stelle [Phys. Rev. Lett. 114, 171601 (2015), 10.1103/PhysRevLett.114.171601] found a numerical solution describing a spherically symmetric non-Schwarzschild asymptotically flat black hole in Einstein gravity with added higher derivative terms. Using the general and quickly convergent parametrization in terms of the continued fractions, we represent this numerical solution in the analytical form, which is accurate not only near the event horizon or far from the black hole, but in the whole space. Thereby, the obtained analytical form of the metric allows one to study easily all the further properties of the black hole, such as thermodynamics, Hawking radiation, particle motion, accretion, perturbations, stability, quasinormal spectrum, etc. Thus, the found analytical approximate representation can serve in the same way as an exact solution.

NREL Wins Martin Luther King Award

Science.gov Websites

the Martin Luther King, Jr. Business Social Responsibility Award for its support of minority and women Luther King, Jr. Business Social Responsibility Award will be presented during ceremonies at 11:45 a.m

Quantum Gravity Effects on Hawking Radiation of Schwarzschild-de Sitter Black Holes

NASA Astrophysics Data System (ADS)

Singh, T. Ibungochouba; Meitei, I. Ablu; Singh, K. Yugindro

2017-08-01

The correction of Hawking temperature of Schwarzschild-de Sitter (SdS) black hole is investigated using the generalized Klein-Gordon equation and the generalized Dirac equation by taking the quantum gravity effects into account. We derive the corrected Hawking temperatures for scalar particles and fermions crossing the event horizon. The quantum gravity effects prevent the rise of temperature in the SdS black hole. Besides correction of Hawking temperature, the Hawking radiation of SdS black hole is also investigated using massive particles tunneling method. By considering self gravitation effect of the emitted particles and the space time background to be dynamical, it is also shown that the tunneling rate is related to the change of Bekenstein-Hawking entropy and small correction term (1 + 2 β m 2). If the energy and the angular momentum are taken to be conserved, the derived emission spectrum deviates from the pure thermal spectrum. This result gives a correction to the Hawking radiation and is also in agreement with the result of Parikh and Wilczek.

34 CFR 690.67 - Receiving up to two Scheduled Awards during a single award year.

Code of Federal Regulations, 2010 CFR

2010-07-01

... a student in an award year if the student— (1) Is enrolled for credit or clock hours that are attributable to the student's second academic year in the award year; (2) Is enrolled in an eligible program... in 34 CFR part 668, subpart O for students with intellectual disabilities; and (3) Is enrolled at...

49 CFR 663.23 - Description of pre-award audit.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 49 Transportation 7 2010-10-01 2010-10-01 false Description of pre-award audit. 663.23 Section 663.23 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL TRANSIT ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PRE-AWARD AND POST-DELIVERY AUDITS OF ROLLING STOCK PURCHASES Pre-Award Audits § 663.23 Description of pre-award...

Special awards lighten up SPR banquet

NASA Astrophysics Data System (ADS)

Zwickl, Ron; Baker, Dan; Reiff, Pat

On December 8, 1982, Marcia Neugebauer, then president of the Solar and Planetary Relationships section, held the “First Occasional Awards Ceremony” in conjunction with the annual dinner banquet at the Fall AGU meeting. These awards were an attempt to add a little humor to our usually somber gatherings. This year we reincarnated Neugebauer's successful concept and presented a number of new and novel awards to our fellow scientists at the Fall AGU SPR dinner. Summarized for your enjoyment are the categories and the official winners, as announced at the December 6 banquet.

Women in Aerospace Awards

NASA Image and Video Library

2010-10-26

NASA Headquarters Program Planning Specialist Beth Beck speaks after being given the Women in Aerospace's Aerospace Awareness Award at the organization's annual awards ceremony and banquet held at the Ritz-Carlton Hotel in Arlington, VA on Tuesday, Oct. 26, 2010. Four current NASA leaders and one retiree were recognized for their work by Women in Aerospace. The event celebrates women's professional excellence in aerospace and honors women who have made outstanding contributions to the aerospace community. Photo Credit: (NASA/Bill Ingalls)

Awards for Photovoltaic Manufacturing R&D | Photovoltaic Research | NREL

Science.gov Websites

Awards for Photovoltaic Manufacturing R&D Awards for Photovoltaic Manufacturing R&D The following research efforts within the PV Manufacturing R&D Project were honored with prestigious industry awards. 1995-AstroPower (now GE Energy): Received an R&D 100 Award for its Silicon-Film

49 CFR 663.25 - Pre-award Buy America certification.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 49 Transportation 7 2010-10-01 2010-10-01 false Pre-award Buy America certification. 663.25...-Award Audits § 663.25 Pre-award Buy America certification. For purposes of this part, a pre-award Buy America certification is a certification that the recipient keeps on file that— (a) There is a letter from...

49 CFR 663.25 - Pre-award Buy America certification.

Code of Federal Regulations, 2012 CFR

2012-10-01

... 49 Transportation 7 2012-10-01 2012-10-01 false Pre-award Buy America certification. 663.25...-Award Audits § 663.25 Pre-award Buy America certification. For purposes of this part, a pre-award Buy America certification is a certification that the recipient keeps on file that— (a) There is a letter from...

49 CFR 663.25 - Pre-award Buy America certification.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 49 Transportation 7 2014-10-01 2014-10-01 false Pre-award Buy America certification. 663.25...-Award Audits § 663.25 Pre-award Buy America certification. For purposes of this part, a pre-award Buy America certification is a certification that the recipient keeps on file that— (a) There is a letter from...

49 CFR 663.25 - Pre-award Buy America certification.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 49 Transportation 7 2013-10-01 2013-10-01 false Pre-award Buy America certification. 663.25...-Award Audits § 663.25 Pre-award Buy America certification. For purposes of this part, a pre-award Buy America certification is a certification that the recipient keeps on file that— (a) There is a letter from...

49 CFR 663.25 - Pre-award Buy America certification.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 49 Transportation 7 2011-10-01 2011-10-01 false Pre-award Buy America certification. 663.25...-Award Audits § 663.25 Pre-award Buy America certification. For purposes of this part, a pre-award Buy America certification is a certification that the recipient keeps on file that— (a) There is a letter from...

48 CFR 3427.472 - Advertising of awards clause.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Advertising of awards... Copyrights 3427.472 Advertising of awards clause. The contracting officer shall insert the clause in 3452.227-72, Advertising of Awards, in all solicitations and contracts other than purchase orders. ...

10 CFR 603.500 - Pre-award business evaluation.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 10 Energy 4 2010-01-01 2010-01-01 false Pre-award business evaluation. 603.500 Section 603.500 Energy DEPARTMENT OF ENERGY (CONTINUED) ASSISTANCE REGULATIONS TECHNOLOGY INVESTMENT AGREEMENTS Pre-Award Business Evaluation § 603.500 Pre-award business evaluation. (a) The contracting officer must determine the...

Thermodynamics phase transition and Hawking radiation of the Schwarzschild black hole with quintessence-like matter and a deficit solid angle

NASA Astrophysics Data System (ADS)

Rodrigue, Kamiko Kouemeni Jean; Saleh, Mahamat; Thomas, Bouetou Bouetou; Kofane, Timoleon Crepin

2018-05-01

In this paper, we investigate the thermodynamics and Hawking radiation of Schwarzschild black hole with quintessence-like matter and deficit solid angle. From the metric of the black hole, we derive the expressions of temperature and specific heat using the laws of black hole thermodynamics. Using the null geodesics method and Parikh-Wilczeck tunneling method, we derive the expressions of Boltzmann factor and the change of Bekenstein-Hawking entropy for the black hole. The behaviors of the temperature, specific heat, Boltzmann factor and the change of Bekenstein entropy versus the deficit solid angle (ɛ 2) and the density of static spherically symmetric quintessence-like matter (ρ 0) were explicitly plotted. The results show that, when the deficit solid angle (ɛ 2) and the density of static spherically symmetric quintessence-like matter at r=1 (ρ 0) vanish (ρ 0=ɛ =0), these four thermodynamics quantities are reduced to those obtained for the simple case of Schwarzschild black hole. For low entropies, the presence of quintessence-like matter induces a first order phase transition of the black hole and for the higher values of the entropies, we observe the second order phase transition. When increasing ρ 0, the transition points are shifted to lower entropies. The same thing is observed when increasing ɛ 2. In the absence of quintessence-like matter (ρ 0=0), these transition phenomena disappear. Moreover the rate of radiation decreases when increasing ρ 0 or (ɛ ^2).

48 CFR 3452.227-71 - Advertising of awards.

Code of Federal Regulations, 2012 CFR

2012-10-01

... 48 Federal Acquisition Regulations System 7 2012-10-01 2012-10-01 false Advertising of awards... Clauses 3452.227-71 Advertising of awards. As prescribed in 3427.409, insert the following clause in all solicitations and contracts other than purchase orders: Advertising of Awards (MAR 2011) The contractor agrees...

48 CFR 3452.227-72 - Advertising of awards.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Advertising of awards... Clauses 3452.227-72 Advertising of awards. As prescribed in 3427.472, insert the following clause in all solicitations and contracts other than purchase orders: Advertising of Awards (AUG 1987) The contractor agrees...

48 CFR 3452.227-71 - Advertising of awards.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 48 Federal Acquisition Regulations System 7 2011-10-01 2011-10-01 false Advertising of awards... Clauses 3452.227-71 Advertising of awards. As prescribed in 3427.409, insert the following clause in all solicitations and contracts other than purchase orders: Advertising of Awards (MAR 2011) The contractor agrees...

48 CFR 3452.227-71 - Advertising of awards.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 48 Federal Acquisition Regulations System 7 2013-10-01 2012-10-01 true Advertising of awards. 3452....227-71 Advertising of awards. As prescribed in 3427.409, insert the following clause in all solicitations and contracts other than purchase orders: Advertising of Awards (MAR 2011) The contractor agrees...

48 CFR 3452.227-71 - Advertising of awards.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 48 Federal Acquisition Regulations System 7 2014-10-01 2014-10-01 false Advertising of awards... Clauses 3452.227-71 Advertising of awards. As prescribed in 3427.409, insert the following clause in all solicitations and contracts other than purchase orders: Advertising of Awards (MAR 2011) The contractor agrees...

Evaluating Taught Postgraduate Awards from the Student's Perspective

ERIC Educational Resources Information Center

Kember, David; Ho, Amaly; Leung, Doris Y. P.

2016-01-01

There is a need for a questionnaire designed specifically to evaluate taught postgraduate (TPg) awards for quality assurance or enhancement purposes. Comparison of undergraduate and TPg awards suggests that as the former have broadened their ambit to better nurture generic graduate attributes, TPg awards have concentrated on advanced specialised…

40 CFR 35.1650-2 - Limitations on awards.

Code of Federal Regulations, 2010 CFR

2010-07-01

... which shall be completed before the project is awarded. (b) Before awarding Phase 2 projects, the Regional Administrator shall further determine that: (1) When a Phase 1 project was awarded, the final... restoration plan selected under the Phase 1 project must be implemented under a Phase 2 cooperative agreement...

Tidal disruptions by supermassive black holes - Hydrodynamic evolution of stars on a Schwarzschild background

NASA Technical Reports Server (NTRS)

Laguna, Pablo; Miller, Warner A.; Zurek, Wojciech H.; Davies, Melvyn B.

1993-01-01

We present a three-dimensional numerical study of tidal disruption of a main-sequence star by a supermassive black hole. The simulations include general relativistic effects which are important in this regime. We analyze stars in a marginally bound orbit around the black hole with pericentric separation of a few Schwarzschild radii. We show that during a close passage, as a result of relativistic effects analogous to the perihelion shift, the trajectories of the debris of the star fan out into a crescent-like shape centered on the black hole. We also discuss the increase of the central density of the star as it approaches pericentric distance, the fraction of the debris accreted by the hole, its accretion rate, the distribution of debris orbits bound to the hole, and the velocity of unbound ejected material. We compare these results with the disruption of the star by a Newtonian point mass.

Tripartite nonlocality for an open Dirac system in the background of Schwarzschild space-time

NASA Astrophysics Data System (ADS)

Ding, Zhi-Yong; Shi, Jia-Dong; Wu, Tao; He, Juan

2017-12-01

In this paper, the behavior of the tripartite nonlocality for a Dirac system in the background of Schwarzschild space-time is studied. It is shown that the nonlocality of the ultimate physical accessible state always decreases as the Hawking effect increases monotonically, which is independent of the number of particles located near the event horizon. Besides, the more particles there are located near the event horizon, the more difficult the violation of the Svetlichny inequality becomes. Furthermore, we investigate the property of these particles suffering from a non-Markovian environment, and derive that the nonlocality decreases quickly with the increasing decoherence time accompanied by damping revivals. To preserve tripartite nonlocality in the non-Markovian environment, we propose a scheme by means of prior weak measurement and post measurement reversal. It is worth noticing that the effect is better for larger measurement strengths, while it induces smaller success probability.

Karl Pearson and eugenics: personal opinions and scientific rigor.

PubMed

Delzell, Darcie A P; Poliak, Cathy D

2013-09-01

The influence of personal opinions and biases on scientific conclusions is a threat to the advancement of knowledge. Expertise and experience does not render one immune to this temptation. In this work, one of the founding fathers of statistics, Karl Pearson, is used as an illustration of how even the most talented among us can produce misleading results when inferences are made without caution or reference to potential bias and other analysis limitations. A study performed by Pearson on British Jewish schoolchildren is examined in light of ethical and professional statistical practice. The methodology used and inferences made by Pearson and his coauthor are sometimes questionable and offer insight into how Pearson's support of eugenics and his own British nationalism could have potentially influenced his often careless and far-fetched inferences. A short background into Pearson's work and beliefs is provided, along with an in-depth examination of the authors' overall experimental design and statistical practices. In addition, portions of the study regarding intelligence and tuberculosis are discussed in more detail, along with historical reactions to their work.

23 CFR 1313.8 - Award procedures.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 23 Highways 1 2010-04-01 2010-04-01 false Award procedures. 1313.8 Section 1313.8 Highways NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION INCENTIVE GRANT CRITERIA FOR ALCOHOL-IMPAIRED DRIVING PREVENTION PROGRAMS § 1313.8 Award procedures. In each Federal fiscal year...

Waldo E. Smith receives first award of his namesake medal

NASA Astrophysics Data System (ADS)

Smith, Waldo E.

This evening marks the first presentation of the American Geophysical Union's Waldo E. Smith Award. While all other AGU awards and honors are given for excellence in scientific research in one or another of the geophysical disciplines, this award is different. The Waldo E. Smith Award is given for dedicated and extraordinary service to geophysics and AGU. It is the principal purpose of this citation to show why it is particularly appropriate that an award for service to American geophysics should be called the Waldo E. Smith Award. A secondary objective, aimed at those present tonight, is to introduce the first recipient of this award, Waldo E. Smith, Executive Director Emeritus of AGU.

7 CFR 4284.1009 - Limitations on awards.

Code of Federal Regulations, 2013 CFR

2013-01-01

... RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GRANTS Agriculture Innovation Demonstration Centers § 4284.1009 Limitations on awards. The maximum grant award for an agriculture innovation center shall be...

7 CFR 4284.1009 - Limitations on awards.

Code of Federal Regulations, 2014 CFR

2014-01-01

... RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GRANTS Agriculture Innovation Demonstration Centers § 4284.1009 Limitations on awards. The maximum grant award for an agriculture innovation center shall be...

7 CFR 4284.1009 - Limitations on awards.

Code of Federal Regulations, 2012 CFR

2012-01-01

... RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GRANTS Agriculture Innovation Demonstration Centers § 4284.1009 Limitations on awards. The maximum grant award for an agriculture innovation center shall be...

7 CFR 4284.1009 - Limitations on awards.

Code of Federal Regulations, 2010 CFR

2010-01-01

... RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GRANTS Agriculture Innovation Demonstration Centers § 4284.1009 Limitations on awards. The maximum grant award for an agriculture innovation center shall be...

7 CFR 4284.1009 - Limitations on awards.

Code of Federal Regulations, 2011 CFR

2011-01-01

... RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GRANTS Agriculture Innovation Demonstration Centers § 4284.1009 Limitations on awards. The maximum grant award for an agriculture innovation center shall be...

Pulaski Award Ceremony

NASA Image and Video Library

2017-11-01

The prestigious 2017 Pulaski Award is on display near a new memorial marker on the Merritt Island National Wildlife Refuge in Florida. During a joint ceremony, the Spaceport Integration Team and its partners were presented with the award and a new memorial marker was dedicated. The multi-agency team includes representatives from NASA's Kennedy Space Center, Cape Canaveral Air Force Station's 45th Space Wing, the Merritt Island National Wildlife Refuge, as well as the Florida Forest Service and Brevard County Fire Rescue. The memorial marker honors two fallen firefighters, Scott Maness and Beau Sauselein, who died fighting a wildfire on space center property in 1981. Held outdoors, the ceremony was attended by 140 guests.

Faculty awards at US colleges and schools of pharmacy.

PubMed

Kalis, Michelle M; Kirschenbaum, Harold L

2008-08-15

To determine recognition given for outstanding teaching, service, and scholarship at US colleges and schools of pharmacy, the types of awards given, and the process used to select the recipients. A self-administered questionnaire was made available online in 2006 to deans at 89 colleges and schools of pharmacy. Sixty-four usable responses (72%) were obtained. An award to acknowledge teaching excellence was most commonly reported (92%), followed by an award for adjunct/volunteer faculty/preceptors (79%). The majority of the institutions (31 out of 58) reported offering 1 teaching award annually. The 2 most common methods for selecting the recipient of the teaching award were by student vote and by college/school committee vote following nominations. Twenty-four of the 63 respondents indicated that their institution provided an award for research/scholarship and 18 offered an award for outstanding service. Teaching excellence was recognized and rewarded at most US colleges and schools of pharmacy; however, research/scholarship and service were formally recognized less frequently.

Dark Candles of the Universe: Black Hole Observations

NASA Astrophysics Data System (ADS)

Aykutalp, Aycin

2016-03-01

In 1916, when Karl Schwarzschild solved the Einstein field equations of general relativity for a spherically symmetric, non-rotating mass no one anticipated the impact black holes would have on astrophysics. I will review the main formation channels for black hole seeds and their evolution through cosmic time. In this, emphasis will be placed on the observational diagnostics of astrophysical black holes and their role on the assembly of galaxy formation and evolution. I then review how these observations put constrain on the seed black hole formation theories. Finally, I present an outlook for how future observations can shed light on our understanding of black holes. This work is supported by NSF Grant AST-1333360.

Donges Receives 2013 Donald L. Turcotte Award

NASA Astrophysics Data System (ADS)

2014-07-01

Jonathan F. Donges was awarded the 2013 Donald L. Turcotte Award, given annually to recent Ph.D. recipients for outstanding dissertation research that contributes directly to the field of nonlinear geophysics. Donges's Ph.D. thesis is entitled "Functional network macroscopes for probing past and present Earth system dynamics." He gave an invited talk and was formally presented with the award at the 2013 AGU Fall Meeting, held 9-13 December in San Francisco, Calif.

Worden Ambassador of Exploration Award

NASA Image and Video Library

2009-07-29

Apollo astronaut Al Worden, left, and NASA Administrator Charles Bolden, take a close look at Worden's Ambassador of Exploration Award for his contributions to the U.S. space program following a ceremony, Thursday, July 30, 2009, where Worden was honored with the presentation of the award at Kennedy Space Center, Fla. Worden served as command module pilot for the Apollo 15 mission. Photo Credit: (NASA/Bill Ingalls)

Survey of faculty educator development award recipients.

PubMed

Aziz, Shahid R; Ziccardi, Vincent B

2011-01-01

Since 2002, the American Association of Oral and Maxillofacial Surgeons and the Oral and Maxillofacial Surgery Foundation have annually awarded the Faculty Educator Development Award (FEDA) to select junior full-time oral and maxillofacial surgery faculty. To date, 33 individuals have received this award. The purpose of this study was to evaluate the FEDA's impact on the recipients' career and assess the FEDA's strengths and weaknesses from the perspective of the recipients. A complete list of FEDA recipients was obtained from the American Association of Oral and Maxillofacial Surgeons, to whom a 19-question survey was electronically mailed for completion. Twenty-two of the 33 surveys were completed and returned. Strengths of the FEDA included encouraging faculty recruitment and retention and financial support. Weaknesses included unknown selection criteria for the FEDA, unknown FEDA selection committee, and that the financial component of the award was available for only 3 of the 6 years of the FEDA requirement. Although there are some weaknesses in the FEDA, it is the only award of its kind available to the specialty of oral and maxillofacial surgery. As such, consideration should be given to expanding the number of awards given and increasing the amount of the award. In addition, academic oral and maxillofacial surgery needs to improve its recruitment and retention of junior surgical faculty to ensure the continued viability of the specialty and training programs. Suggestions for improvement are discussed. Copyright © 2011 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

Awarding and promoting excellence in hearing loss prevention

PubMed Central

Meinke, Deanna K.; Morata, Thais C.

2015-01-01

Objective To describe the rationale and creation of a national award to recognize and promote hearing loss prevention. Design In 2007, the National Institute for Occupational Safety and Health partnered with the National Hearing Conservation Association to create the Safe-in-Sound Excellence in Hearing Loss Prevention Award™ (www.safeinsound.us). The objectives of this initiative were to recognize organizations that document measurable achievements and to share leading edge information to a broader community. Results An expert committee developed specific and explicit award evaluation criteria of excellence in hearing loss prevention for organizations in different industrial sectors. The general approach toward award criteria was to incorporate current ‘best practices’ and familiar benchmarks of hearing loss prevention programs. This approach was reviewed publicly. In addition, mechanisms were identified to measure the impact of the award itself. Interest in the award was recorded through the monitoring of the visitor traffic registered by the award web site and is increasing yearly. Specific values and strategies common across award winners are presented. Conclusion The Safe-in-Sound Award™ has obtained high quality field data; identified practical solutions, disseminated successful strategies to minimize the risk of hearing loss, generated new partnerships, and shared practical solutions with others in the field. PMID:22264064

14 CFR § 1260.111 - Pre-award policies.

Code of Federal Regulations, 2014 CFR

2014-01-01

... Higher Education, Hospitals, and Other Non-Profit Organizations Pre-Award Requirements § 1260.111 Pre-award policies. (a) Use of grants and cooperative agreements, and contracts. In each instance, NASA... 14 Aeronautics and Space 5 2014-01-01 2014-01-01 false Pre-award policies. § 1260.111 Section Â...

4 CFR 28.124 - Review of arbitration awards.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 4 Accounts 1 2011-01-01 2011-01-01 false Review of arbitration awards. 28.124 Section 28.124... ACCOUNTABILITY OFFICE Special Procedures; Unfair Labor Practices § 28.124 Review of arbitration awards. (a... pursuant to the arbitration. (2) The time limit for filing an exception to an arbitration award is 30 days...

4 CFR 28.124 - Review of arbitration awards.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 4 Accounts 1 2010-01-01 2010-01-01 false Review of arbitration awards. 28.124 Section 28.124... ACCOUNTABILITY OFFICE Special Procedures; Unfair Labor Practices § 28.124 Review of arbitration awards. (a... pursuant to the arbitration. (2) The time limit for filing an exception to an arbitration award is 30 days...

48 CFR 922.608-5 - Award.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Award. 922.608-5 Section 922.608-5 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS APPLICATION OF LABOR LAWS TO GOVERNMENT ACQUISITION Walsh-Healey Public Contracts Act 922.608-5 Award. The...

40 CFR 35.408 - Award limitations.

Code of Federal Regulations, 2013 CFR

2013-07-01

... management of a substantial portion of the State's construction grants program. The maximum amount of permit... Regional Administrator allows for full funding of the management of the construction grant program under... Award limitations. The Regional Administrator will not award section 205(g) funds: (a) For construction...

40 CFR 35.408 - Award limitations.

Code of Federal Regulations, 2011 CFR

2011-07-01

... management of a substantial portion of the State's construction grants program. The maximum amount of permit... Regional Administrator allows for full funding of the management of the construction grant program under... Award limitations. The Regional Administrator will not award section 205(g) funds: (a) For construction...

40 CFR 35.408 - Award limitations.

Code of Federal Regulations, 2012 CFR

2012-07-01

... management of a substantial portion of the State's construction grants program. The maximum amount of permit... Regional Administrator allows for full funding of the management of the construction grant program under... Award limitations. The Regional Administrator will not award section 205(g) funds: (a) For construction...

Vehicle Technologies Program Awards and Patents

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

2011-12-13

Award-winning technologies and processes are hallmarks of the programs funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, and industrial partners. Awards, patents, and other recognition validate the products of research undertaken as part of the Vehicle Technologies Program.

Women in Aerospace Awards

NASA Image and Video Library

2010-10-26

NASA Langley Aerospace Engineer Jill Lynette Hanna Prince receives the Women in Aerospace Achievement in Aerospace award from North Carolina State Professor Robert Tolson during the Women in Aerospace organization's annual awards ceremony and banquet held at the Ritz-Carlton Hotel in Arlington, VA on Tuesday, Oct. 26, 2010. Four current NASA leaders and one retiree were recognized for their work by Women in Aerospace. The event celebrates women's professional excellence in aerospace and honors women who have made outstanding contributions to the aerospace community. Photo Credit: (NASA/Bill Ingalls)

Women in Aerospace Awards

NASA Image and Video Library

2010-10-26

NASA's Associate Administrator of the Science Mission Directorate Dr. Edward J. Weiler presents the Women in Aerospace's Lifetime Achievement Award to retired NASA chief astronomer Nancy Grace Roman at the organization's annual awards ceremony and banquet held at the Ritz-Carlton Hotel in Arlington, VA on Tuesday, Oct. 26, 2010. Four current NASA leaders and one retiree were recognized for their work by Women in Aerospace. The event celebrates women's professional excellence in aerospace and honors women who have made outstanding contributions to the aerospace community. Photo Credit: (NASA/Bill Ingalls)

Women in Aerospace Awards

NASA Image and Video Library

2010-10-26

NASA Administrator Charlie Bolden holds up a photograph showing four female Astronauts onboard the Space Station during his presentation at the Women in Aerospace (WIA) organization's annual awards ceremony and banquet at the Ritz-Carlton Hotel in Arlington, VA on Tuesday, Oct. 26, 2010. Bolden presented Women in Aerospace's Outstanding Member Award to NASA Deputy Administrator Lori Garver, noting her ongoing leadership and participation in Women in Aerospace and her passion and dedication to opening the high frontier of space to the everyday person. Photo Credit: (NASA/Bill Ingalls)

The advantages of cost plus award fee contracts

NASA Technical Reports Server (NTRS)

Keathley, William C.

1994-01-01

A Cost Plus Award Fee contract is the best procurement vehicle for the high-tech, one-of-a-kind, development projects that constitute most of NASA'S projects. The use of this type of contract requires more government and contractor effort than any other forms of contracts. An award fee contract is described as an arrangement whereby the government periodically awards a fee consistent with the cost, schedule and technical performance that is achieved by a contractor during a preset period with preset award fee pools. It's the only contracting method where both the government and contractor goals are closely linked. It also has a built-in mechanism to conveniently alter and emphasize program events in order to current external and internal situations. The award fee process also demands good communication between government and contractor participants.

15 CFR 18.9 - Awards against other agencies.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Awards against other agencies. 18.9 Section 18.9 Commerce and Foreign Trade Office of the Secretary of Commerce ATTORNEY'S FEES AND OTHER EXPENSES General Provisions § 18.9 Awards against other agencies. If an applicant is entitled to an award...

48 CFR 1819.7208 - Award Fee Pilot Program.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 48 Federal Acquisition Regulations System 6 2011-10-01 2011-10-01 false Award Fee Pilot Program... Pilot Program. (a) Mentors will be eligible to earn a separate award fee associated with the provision... related to the mentor-protégé relationship. (d) The Award Fee Pilot Program is an addition to the credit...

Biswas Receives 2012 Donald L. Turcotte Award

NASA Astrophysics Data System (ADS)

2013-06-01

Asim Biswas has been awarded the Donald L. Turcotte Award, given annually to recent Ph.D. recipients for outstanding dissertation research that contributes directly to the field of nonlinear geophysics. Asim's Ph.D. thesis is entitled "Multi-scale controls on spatial patterns of soil water storage in the hummocky regions of North America." He gave an invited talk and was formally presented with the award at the 2012 AGU Fall Meeting, held 3-7 December in San Francisco, Calif.

41 CFR 105-74.605 - Award.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 105-74.605 Award. Award... form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program... money. (2) Loans. (3) Loan guarantees. (4) Interest subsidies. (5) Insurance. (6) Direct appropriations...

41 CFR 105-74.605 - Award.

Code of Federal Regulations, 2014 CFR

2014-01-01

...-GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 105-74.605 Award. Award... form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program... money. (2) Loans. (3) Loan guarantees. (4) Interest subsidies. (5) Insurance. (6) Direct appropriations...

41 CFR 105-74.605 - Award.

Code of Federal Regulations, 2013 CFR

2013-07-01

...-GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 105-74.605 Award. Award... form of money or property in lieu of money. (2) A block grant or a grant in an entitlement program... money. (2) Loans. (3) Loan guarantees. (4) Interest subsidies. (5) Insurance. (6) Direct appropriations...