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1

Physics Tutoring List Names shown are either graduate students or Physics majors charging fees for their tutoring services. These  

E-print Network

6/5/2014 Physics Tutoring List Names shown are either graduate students or Physics majors charging fees for their tutoring services. These persons are not sponsored by UCLA or the Physics & Astronomy Department. Tutor Name Phone E-mail Subject(s) Bauer, David 419.460.1267 dbauer88@gmail.com Physics

Durian, Douglas

2

Electric dipole moments as probes of new CP-odd physics  

NASA Astrophysics Data System (ADS)

We review the importance of precision probes for flavor-diagonal CP-violation, specifically searches for electric dipole moments of nucleons, atoms and molecules, in accessing new CP-odd physics at high scales. We summarize the effective field theory analysis of observable EDMs in terms of a general set of CP-odd operators at 1 GeV, and the ensuing model-independent new physics constraints, incorporating the recently improved limit on the Hg EDM. We also discuss the current status of these limits in the context of 1- and 2-loop contributions in supersymmetric models.

Ritz, Adam

2009-12-01

3

PHYSICAL REVIEW C 74, 064312 (2006) Co: Structure of an odd-odd nucleus in the pf shell  

E-print Network

-machi, Aizu-Wakamatsu, Fukushima 965-8580, Japan T. Mizusaki Institute of Natural Sciences, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa 214-8580, Japan T. Otsuka Department of Physics and Astronomy, University of Tokyo, Hongo, Tokyo 113-0033, Japan and RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Japan

Ribas, Roberto Vicençotto

4

Odd + Odd = Odd: Is It Possible?  

ERIC Educational Resources Information Center

In this article, the authors explore the reasons why some mathematical functions are referred to as odd, and others as even. They start by recalling the definitions of both functions. Simply stated, the value of an even function is the same for a number and its opposite, whereas the value of an odd function changes for the opposite number when the…

Sinitsky, Ilya; Zazkis, Rina; Leikin, Roza

2011-01-01

5

A classification of spin frustration in molecular magnets from a physical study of large odd-numbered-metal, odd electron rings.  

PubMed

The term "frustration" in the context of magnetism was originally used by P. W. Anderson and quickly adopted for application to the description of spin glasses and later to very special lattice types, such as the kagomé. The original use of the term was to describe systems with competing antiferromagnetic interactions and is important in current condensed matter physics in areas such as the description of emergent magnetic monopoles in spin ice. Within molecular magnetism, at least two very different definitions of frustration are used. Here we report the synthesis and characterization of unusual nine-metal rings, using magnetic measurements and inelastic neutron scattering, supported by density functional theory calculations. These compounds show different electronic/magnetic structures caused by frustration, and the findings lead us to propose a classification for frustration within molecular magnets that encompasses and clarifies all previous definitions. PMID:23132941

Baker, Michael L; Timco, Grigore A; Piligkos, Stergios; Mathieson, Jennifer S; Mutka, Hannu; Tuna, Floriana; Kozlowski, Piotr; Antkowiak, Michal; Guidi, Tatiana; Gupta, Tulika; Rath, Harapriya; Woolfson, Robert J; Kamieniarz, Grzegorz; Pritchard, Robin G; Weihe, Høgni; Cronin, Leroy; Rajaraman, Gopalan; Collison, David; McInnes, Eric J L; Winpenny, Richard E P

2012-11-20

6

A classification of spin frustration in molecular magnets from a physical study of large odd-numbered-metal, odd electron rings  

PubMed Central

The term “frustration” in the context of magnetism was originally used by P. W. Anderson and quickly adopted for application to the description of spin glasses and later to very special lattice types, such as the kagomé. The original use of the term was to describe systems with competing antiferromagnetic interactions and is important in current condensed matter physics in areas such as the description of emergent magnetic monopoles in spin ice. Within molecular magnetism, at least two very different definitions of frustration are used. Here we report the synthesis and characterization of unusual nine-metal rings, using magnetic measurements and inelastic neutron scattering, supported by density functional theory calculations. These compounds show different electronic/magnetic structures caused by frustration, and the findings lead us to propose a classification for frustration within molecular magnets that encompasses and clarifies all previous definitions. PMID:23132941

Baker, Michael L.; Timco, Grigore A.; Piligkos, Stergios; Mathieson, Jennifer S.; Mutka, Hannu; Tuna, Floriana; Kozlowski, Piotr; Antkowiak, Michal; Guidi, Tatiana; Gupta, Tulika; Rath, Harapriya; Woolfson, Robert J.; Kamieniarz, Grzegorz; Pritchard, Robin G.; Weihe, H?gni; Cronin, Leroy; Rajaraman, Gopalan; Collison, David; McInnes, Eric J. L.; Winpenny, Richard E. P.

2012-01-01

7

COUPLING OF ANGULAR MOMENTA IN ODD-ODD NUCLEI  

Microsoft Academic Search

BS>The coupling of the angular momenta of individual particle states in ; odd-odd nuclei ls shown to be generally describable as spin-spin coupling if the ; asymptoticquantum-number description of particle states is used for deformed ; nuclei. Coupling rules for these nuclei are given, and all available data are ; treated by them. The results are compared with results based

C. J. Jr. Gallagher; S. A. Moszkowski

1958-01-01

8

Content Analysis of Taiwanese 14 Year Olds' Information Processing Operations Shown in Cognitive Structures Following Physics Instruction, with Relations to Science Attainment and Scientific Epistemological Beliefs.  

ERIC Educational Resources Information Center

Describes a study of Taiwanese 14-year-olds' (n=48) cognitive structures derived from the instruction of basic atomic physics. Finds that even academically above-average students tended to use relatively lower-level modes of knowledge construction, focusing on reciting or describing specific factual knowledge in physics. (Contains 27 references.)…

Tsai, Chin-Chung

1999-01-01

9

Coupling of Angular Momenta in Odd-Odd Nuclei  

Microsoft Academic Search

The coupling of the angular momenta of individual particle states in odd-odd nuclei is shown to be generally describable as spin-spin coupling if the asymptotic-quantum-number description of particle states is used for deformed nuclei. Coupling rules for these nuclei are given, and all available data are treated by them. The results are compared with results based upon a j-j coupling

C. J. Gallagher; S. A. Moszkowski

1958-01-01

10

The Book of Odds  

NSDL National Science Digital Library

An online book of probabilities relevant to everyday life, the Book of Odds contains thoroughly researched odds on accidents and death, daily life and activities, health and illness, relationships and society. Articles, blogs, and numerical probability statements, all written in formats friendly to the general reader, are presented here on each of the topics. This reference source contains hundreds of thousands of Odds Statements, from the odds of being the only one to survive a plane crash, to the odds of having a heart attack, to the odds of having ever eaten cold pizza for breakfast. Overall, its mission is to increase the public's understanding of probability.

2006-01-01

11

ODDS, ODDS Ratios and Relative Risk What are ODDS?  

E-print Network

, on the other hand, are the number of times an ace will be drawn divided by the number of times that the event will happen, and the second, the relative likelihood it won't, as in "the odds that a randomly given as "p" are . #12;Consider the Table below: FATHERSMOKE SMOKE? YES NO YES 58 20 78 NO 212 152 364

Priestley, Jennifer Lewis

12

Against All Odds  

ERIC Educational Resources Information Center

More than a decade ago, no one held out much hope for the poor, immigrant children at Kennedy Middle School. Nobody thinks that now. This article presents how Kennedy Middle School transformed and beat all the odds to be a "school to watch." In many ways, Kennedy Middle School has become a model of middle-grades improvement. Test scores, though…

Manzo, Kathleen Kennedy

2005-01-01

13

Magnetic moments of odd-odd spherical nuclei  

E-print Network

Magnetic moments of more than one hundred odd-odd spherical nuclei in ground and excited states are calculated within the self-consistent TFFS based on the EDF method by Fayans {\\it et al}. We limit ourselves to nuclei with a neutron and a proton particle (hole) added to the magic or semimagic core. A simple model of no interaction between the odd nucleons is used. In most the cases we analyzed, a good agreement with the experimental data is obtained. Several cases are considered where this simple model does not work and it is necessary to go beyond. The unknown values of magnetic moments of many unstable odd and odd-odd nuclei are predicted including sixty values for excited odd-odd nuclei.

O. I. Achakovskiy; S. P. Kamerdzhiev; E. E. Saperstein; S. V. Tolokonnikov

2013-11-09

14

Magnetic moments of odd-odd spherical nuclei  

E-print Network

Magnetic moments of more than one hundred odd-odd spherical nuclei in ground and excited states are calculated within the self-consistent TFFS based on the EDF method by Fayans {\\it et al}. We limit ourselves to nuclei with a neutron and a proton particle (hole) added to the magic or semimagic core. A simple model of no interaction between the odd nucleons is used. In most the cases we analyzed, a good agreement with the experimental data is obtained. Several cases are considered where this simple model does not work and it is necessary to go beyond. The unknown values of magnetic moments of many unstable odd and odd-odd nuclei are predicted including sixty values for excited odd-odd nuclei.

Achakovskiy, O I; Saperstein, E E; Tolokonnikov, S V

2013-01-01

15

Extremal Myers-Perry Black Holes Coupled to Born-Infeld Electrodynamics in Odd Dimensions  

NASA Astrophysics Data System (ADS)

Employing higher-order perturbation theory, we find a new class of perturbative extremal rotating black hole solutions with Born-Infeld electric charge in odd D dimensional spacetime. The seed solution is an odd-dimensional extremal Myers-Perry black hole with equal angular momenta to which a perturbative, nonlinear, electric Born-Infeld field charge q is added maintaining the extremality condition. The perturbations are performed up to third-order. We also study some physical properties of these black holes. In particular, it is shown that the values of the gyromagnetic ratio of the black holes are modified by the perturbative parameter q and the Born-Infeld parameter ?.

Allaverdizadeh, Masoud; Hendi, Seyed H.; Lemos, José P. S.; Sheykhi, Ahmad

2014-02-01

16

Odd Tic Tac  

NSDL National Science Digital Library

This variation of Tic Tac Toe develops students' strategic thinking. Two players, one using 1s and the other using 0s, take turns entering their numbers into the cells of a 3 by 3 grid. The winner is the first to complete three in a row with an odd sum. The game can be played on paper with a friend or against the computer with the interactive applet. The interactive version allows a user to choose which number to play with and whether to go first or second, providing an opportunity to refine strategy by reflecting on how these choices affect the outcome.

2000-03-01

17

Time-odd mean fields in covariant density functional theory: Rotating systems  

SciTech Connect

Time-odd mean fields (nuclear magnetism) and their impact on physical observables in rotating nuclei are studied in the framework of covariant density functional theory (CDFT). It is shown that they have profound effect on the dynamic and kinematic moments of inertia. Particle number, configuration, and rotational frequency dependencies of their impact on the moments of inertia have been analyzed in a systematic way. Nuclear magnetism can also considerably modify the band crossing features such as crossing frequencies and the properties of the kinematic and dynamic moments of inertia in the band crossing region. The impact of time-odd mean fields on the moments of inertia in the regions away from band crossing only weakly depends on the relativistic mean-field parametrization, reflecting good localization of the properties of time-odd mean fields in CDFT. The moments of inertia of normal-deformed nuclei considerably deviate from the rigid-body value. On the contrary, superdeformed and hyperdeformed nuclei have the moments of inertia which are close to rigid-body value. The structure of the currents in rotating frame, their microscopic origin, and the relations to the moments of inertia have been systematically analyzed. The phenomenon of signature separation in odd-odd nuclei, induced by time-odd mean fields, has been analyzed in detail.

Afanasjev, A. V.; Abusara, H. [Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762 (United States)

2010-09-15

18

Flavor Dependence of T-odd PDFs  

SciTech Connect

The flavor dependence of the naive time reversal odd ("T-odd'') parton distributions for $u$- and $d$-quarks are explored in the spectator model. The flavor dependence of $h_{1}^{\\perp}$ is of significance for the analysis of the azimuthal $\\cos(2\\phi)$ asymmetries in unpolarized SIDIS and DY-processes, as well as for the overall physical understanding of the distribution of transversely polarized quarks in unpolarized nucleons. As a by-product of the formalism, we calculate the chiral-odd but ``T-even'' function $h_{1L}^{\\perp}$ which enables us to present a prediction for the single spin asymmetry $A_{UL}^{\\sin(2\\phi)}$ for a longitudinally polarized target in SIDIS.

Leonard P. Gamberg; Gary R. Goldstein; Marc Schlegel

2007-04-20

19

Odds of observing the multiverse  

NASA Astrophysics Data System (ADS)

Eternal inflation predicts that our observable universe lies within a bubble (or pocket universe) embedded in a volume of inflating space. The interior of the bubble undergoes inflation and standard cosmology, while the bubble walls expand outward and collide with other neighboring bubbles. The collisions provide either an opportunity to make a direct observation of the multiverse or, if they produce unacceptable anisotropy, a threat to inflationary theory. The probability of an observer in our bubble detecting the effects of collisions has an absolute upper bound set by the odds of being in the part of our bubble that lies in the forward light cone of a collision; in the case of collisions with bubbles of identical vacua, this bound is given by the bubble nucleation rate times (HO/HI)2, where HO is the Hubble scale outside the bubbles and HI is the scale of the second round of inflation that occurs inside our bubble. Similar results were obtained by Freigovel et al. using a different method for the case of collisions with bubbles of much larger cosmological constant; here, it is shown to hold in the case of collisions with identical bubbles as well.

Dahlen, A.

2010-03-01

20

Survey of odd-odd deformed nuclear spectroscopy  

SciTech Connect

In this paper, we survey the current experimental data that support assignment of rotational bands in odd-odd deformed nuclear in the rare earth and actinide regions. We present the results of a new study of {sup 170}Mt nuclear structure. In a comparing experimental and calculated Gallagher-Moszkowski matrix elements for rare earth-region nuclei, we have developed a new approach to the systematics of these matrix elements.

Hoff, R.W.

1993-09-14

21

Magnetic Moments of Odd Nuclei  

Microsoft Academic Search

To understand the grouping of the nuclear magnetic moments a generalization of Schmidt's single-particle model is considered. In the first approximation, the ground state of an odd nucleus is taken to be a doublet state with definite partition quantum numbers, but involving both possible values of the azimuthal quantum number L. Only very general assumptions are made concerning the detailed

H. Margenau; E. Wigner

1940-01-01

22

Analysis of the consistency of parity-odd nonbirefringent modified Maxwell theory  

NASA Astrophysics Data System (ADS)

There exist two deformations of standard electrodynamics which describe Lorentz symmetry violation in the photon sector: CPT-odd Maxwell-Chern-Simons theory and CPT-even modified Maxwell theory. In this article, we focus on the parity-odd nonbirefringent sector of modified Maxwell theory. It is coupled to a standard Dirac theory of massive spin-1/2 fermions resulting in a modified quantum electrodynamics (QED). This theory is discussed with respect to properties such as microcausality and unitarity, where it turns out that these hold. Furthermore, a priori, the limit of the theory for vanishing Lorentz-violating parameters seems to be discontinuous. The modified photon polarization vectors are interweaved with preferred spacetime directions defined by the theory, and one vector even has a longitudinal part. That structure remains in the limit mentioned. Since it is not clear whether or not this behavior is a gauge artifact, the cross section for a physical process—modified Compton scattering—is calculated numerically. Despite the numerical instabilities occurring for scattering of unpolarized electrons off polarized photons in the second physical polarization state, it is shown that for Lorentz-violating parameters much smaller than one, the modified cross sections approach the standard QED results. Analytical investigations strengthen the numerical computations. Hence, the theory proves to be consistent, at least with regard to the investigations performed. This leads to the interesting outcome of the modification being a well-defined parity-odd extension of QED.

Schreck, M.

2012-09-01

23

An integrated genetic, radiation hybrid, physical and transcription map of a region of distal mouse chromosome 12, including an imprinted locus and the ‘Legs at odd angles’ ( Loa) mutation  

Microsoft Academic Search

A variety of loci with interesting patterns of regulation such as imprinted expression, and critical functions such as involvement in tumour necrosis factor pathways, map to a distal portion of mouse chromosome 12. This region also contains disease related loci including the ‘Legs at odd angles’ mutation (Loa) that we are pursuing in a positional cloning project. To further define

Abi S Witherden; Majid Hafezparast; Sharon J Nicholson; Azlina Ahmad-Annuar; Nessan Bermingham; Demet Arac; Joanna Rankin; Marjan Iravani; Simon Ball; Jo Peters; Joanne E Martin; Derek Huntley; Holger Hummerich; Marek Sergot; Elizabeth M. C Fisher

2002-01-01

24

Soil clay content underlies prion infection odds  

PubMed Central

Environmental factors—especially soil properties—have been suggested as potentially important in the transmission of infectious prion diseases. Because binding to montmorillonite (an aluminosilicate clay mineral) or clay-enriched soils had been shown to enhance experimental prion transmissibility, we hypothesized that prion transmission among mule deer might also be enhanced in ranges with relatively high soil clay content. In this study, we report apparent influences of soil clay content on the odds of prion infection in free-ranging deer. Analysis of data from prion-infected deer herds in northern Colorado, USA, revealed that a 1% increase in the clay-sized particle content in soils within the approximate home range of an individual deer increased its odds of infection by up to 8.9%. Our findings suggest that soil clay content and related environmental properties deserve greater attention in assessing risks of prion disease outbreaks and prospects for their control in both natural and production settings. PMID:21326232

David Walter, W.; Walsh, Daniel P.; Farnsworth, Matthew L.; Winkelman, Dana L.; Miller, Michael W.

2011-01-01

25

Soil clay content underlies prion infection odds  

USGS Publications Warehouse

Environmental factors-especially soil properties-have been suggested as potentially important in the transmission of infectious prion diseases. Because binding to montmorillonite (an aluminosilicate clay mineral) or clay-enriched soils had been shown to enhance experimental prion transmissibility, we hypothesized that prion transmission among mule deer might also be enhanced in ranges with relatively high soil clay content. In this study, we report apparent influences of soil clay content on the odds of prion infection in free-ranging deer. Analysis of data from prion-infected deer herds in northern Colorado, USA, revealed that a 1% increase in the clay-sized particle content in soils within the approximate home range of an individual deer increased its odds of infection by up to 8.9%. Our findings suggest that soil clay content and related environmental properties deserve greater attention in assessing risks of prion disease outbreaks and prospects for their control in both natural and production settings. ?? 2011 Macmillan Publishers Limited. All rights reserved.

David, Walter W.; Walsh, D.P.; Farnsworth, M.L.; Winkelman, D.L.; Miller, M.W.

2011-01-01

26

Photon statistics of multimode even and odd coherent light  

E-print Network

The even and odd coherent states are generalized for multimode case. The explicit forms for the photon distribution, Q-function and Wigner function are derived. In particular, it is shown that for two-mode case there exist strong correlations between these modes, under certain conditions, which are responsible for two-mode squeezing in case of even coherent states

Nadeem A. Ansari; V. I. Man'ko

1993-08-07

27

Alperin weight conjecture Solvable and odd groups  

E-print Network

Alperin weight conjecture Solvable and odd groups Normal subgroups Extending a character #12;Alperin weight conjecture Solvable and odd groups Normal subgroups Definitions The Alperin weight Cossey University of Akron Extending a character correspondence in groups of odd order #12;Alperin weight

Cossey, James P.

28

Evolution of Collective Structure in Odd-Odd ^70As  

NASA Astrophysics Data System (ADS)

Excited states in ^70As were produced via the ^23Na(^54Fe, ?2pn)^77Rb reaction at 80MeV. Gamma-ray transitions between the excited states were collected in coincidence using a high-resolution array of 10 Ge detectors. From the coincidence relationships, a candidate for the missing odd-spin negative-parity sequence was found, with spins and parities assigned tentatively using systematic arguments. All other high-spin level sequences found previously were confirmed. The kinematic moments of inertia for the new band and those observed previously, calculated within the context of the cranked-shell model, show that ^70As is likely dominated by collective behavior at high spin, making it more similar in this regard to ^72As than ^68As. Collectivity and deformation also seem to increase with neutron number in the light proton-rich arsenic isotopes.

Bruckman, J. K.; Kaye, R. A.; Arora, S. R.; Baker, N. R.; Tabor, S. L.; Hinners, T. A.; Hoffman, C. R.; Lee, S.; Doering, J.

2008-10-01

29

Extremal charged rotating dilaton black holes in odd dimensions  

SciTech Connect

Employing higher-order perturbation theory, we find a new class of charged rotating black hole solutions of Einstein-Maxwell-dilaton theory with general dilaton coupling constant. Starting from the Myers-Perry solutions, we use the electric charge as the perturbative parameter, and focus on extremal black holes with equal-magnitude angular momenta in odd dimensions. We perform the perturbations up to 4th order for black holes in 5 dimensions and up to 3rd order in higher odd dimensions. We calculate the physical properties of these black holes and study their dependence on the charge and the dilaton coupling constant.

Allahverdizadeh, Masoud; Kunz, Jutta; Navarro-Lerida, Francisco [Institut fuer Physik, Universitaet Oldenburg, Postfach 2503 D-26111 Oldenburg (Germany); Departamento de Fisica Atomica, Molecular y Nuclear, Ciencias Fisicas Universidad Complutense de Madrid, E-28040 Madrid (Spain)

2010-09-15

30

On stability of odd-frequency superconducting state  

SciTech Connect

Odd-frequency pairing mechanism has been investigated for several decades. Nevertheless the properties of such superconducting phase as well as its thermodynamic stability have remained unclear. In particular it has been argued by numerous authors that the odd-frequency state is thermodynamically unstable, has an unphysical Meissner effect (at least within the mean-field approximation), and therefore can not exist as a homogeneous phase in equilibrium physical systems. We argue that such a conclusion is incorrect because it relies on an inappropriate assumption that the odd-frequency superconductor can be described by an effective Hamiltonian that breaks the U(l) symmetry. We show that the odd-frequency state can be appropriately formulated within the functional integral representation by using the effective action to describe such a superconducting state within the mean field approximation. We find that the odd-frequency superconductor is thermodynamically stable and exhibits ordinary Meissner effect, and therefore, in principle, it can be realized in equilibrium solid state systems.

Lenov, Bmitry [Los Alamos National Laboratory; Martin, Ivar [Los Alamos National Laboratory; Mozyrsky, Dima [Los Alamos National Laboratory

2008-01-01

31

Investigation of Cool and Hot Executive Function in ODD/CD Independently of ADHD  

ERIC Educational Resources Information Center

Background: Children with oppositional defiant disorder/conduct disorder (ODD/CD) have shown deficits in "cool" abstract-cognitive, and "hot" reward-related executive function (EF) tasks. However, it is currently unclear to what extent ODD/CD is associated with neuropsychological deficits, independently of attention deficit hyperactivity disorder…

Hobson, Christopher W.; Scott, Stephen; Rubia, Katya

2011-01-01

32

Odd-Frequency Pairing in Superconducting Heterostructures  

NASA Astrophysics Data System (ADS)

We review the theory of odd-frequency pairing in superconducting heterostructures, where an odd-frequency pairing component is induced near interfaces. General description of superconducting proximity effect in a normal metal or a ferromagnet attached to an unconventional superconductor (S) is given within quasiclassical kinetic theory for various types of symmetry state in S. Various possible symmetry classes in a superconductor are considered, which are consistent with the Pauli principle: even-frequency spin-singlet even-parity (ESE) state, even-frequency spin-triplet odd-parity (ETO) state, odd-frequency spin-triplet even-parity (OTE) state and odd-frequency spin-singlet odd-parity (OSO) state. As an example, we consider junction between a diffusive normal metal (DN) and a p-wave superconductor (even-frequency spin-triplet odd-parity symmetry), where the pairing amplitude in DN belongs to an odd-frequency spin-triplet even-parity symmetry class. We also discuss the manifestation of odd-frequency pairing in conventional superconductor/normal (S/N) proximity systems and its relation to the classical McMillan-Rowell oscillations.

Golubov, A. A.; Tanaka, Y.; Asano, Y.; Tanuma, Y.

33

Odd-frequency pairing in superconducting heterostructures  

NASA Astrophysics Data System (ADS)

We review the theory of odd-frequency pairing in superconducting heterostructures, where an odd-frequency pairing component is induced near interfaces. A general description of the superconducting proximity effect in a normal metal or a ferromagnet attached to an unconventional superconductor (S) is given within quasiclassical kinetic theory for various types of symmetry state in S. Various possible symmetry classes in a superconductor are considered which are consistent with the Pauli principle: even-frequency spin-singlet even-parity (ESE) state, even-frequency spin-triplet odd-parity (ETO) state, odd-frequency spin-triplet even-parity (OTE) state and odd-frequency spin-singlet odd-parity (OSO) state. As an example, we consider a junction between a diffusive normal metal (DN) and a p-wave superconductor (even-frequency spin-triplet odd-parity symmetry), where the pairing amplitude in DN belongs to an odd-frequency spin-triplet even-parity symmetry class. We also discuss the manifestation of odd-frequency pairing in conventional superconductor/normal (S/N) proximity systems and its relation to the classical McMillan-Rowell oscillations.

Golubov, A. A.; Tanaka, Y.; Asano, Y.; Tanuma, Y.

2009-04-01

34

Improving the Odds of Surviving Sepsis  

MedlinePLUS

... Improving the Odds of Surviving Sepsis Inside Life Science View All Articles | Inside Life Science Home Page Improving the Odds of Surviving Sepsis ... Threatening Bacterial Infection Remains Mysterious This Inside Life Science article also appears on LiveScience . Learn about related ...

35

Social Adjustment among Taiwanese Children with Symptoms of ADHD, ODD, and ADHD Comorbid with ODD  

ERIC Educational Resources Information Center

This study examined social problems at school and relationships with peers, siblings, mothers, and fathers among children with ADHD only (n = 41), ODD only (n = 14), ADHD + ODD (n = 47), and normal controls (n = 204) from a school-based sample of 2,463 first to ninth graders in Taiwan. ADHD and ODD symptoms were determined by teacher and mother…

Tseng, Wan-Ling; Kawabata, Yoshito; Gau, Susan Shur-Fen

2011-01-01

36

Topology Explains Why Automobile Sunshades Fold Oddly  

ERIC Educational Resources Information Center

Automobile sunshades always fold into an "odd" number of loops. The explanation why involves elementary topology (braid theory and linking number, both explained in detail here with definitions and examples), and an elementary fact from algebra about symmetric group.

Feist, Curtis; Naimi, Ramin

2009-01-01

37

Magnetic Moments of Even-Odd Nuclei  

Microsoft Academic Search

The deviations of nuclear magnetic moments from the Schmidt limits are interpreted in terms of a failure of L-S coupling, and a simple interpolation procedure is applied to compute the statistical weight of the components with L=I+12 and L=I-12. The results below odd N or Z=53 are sufficiently regular to be used to compute the magnetic moments of several odd

Jack P. Davidson

1952-01-01

38

Logarithm Odds Maps for Shape Representation  

PubMed Central

The concept of the Logarithm of the Odds (LogOdds) is frequently used in areas such as artificial neural networks, economics, and biology. Here, we utilize LogOdds for a shape representation that demonstrates desirable properties for medical imaging. For example, the representation encodes the shape of an anatomical structure as well as the variations within that structure. These variations are embedded in a vector space that relates to a probabilistic model. We apply our representation to a voxel based segmentation algorithm. We do so by embedding the manifold of Signed Distance Maps (SDM) into the linear space of LogOdds. The LogOdds variant is superior to the SDM model in an experiment segmenting 20 subjects into subcortical structures. We also use LogOdds in the non-convex interpolation between space conditioned distributions. We apply this model to a longitudinal schizophrenia study using quadratic splines. The resulting time-continuous simulation of the schizophrenic aging process has a higher accuracy then a model based on convex interpolation. PMID:17354865

Pohl, Kilian M.; Fisher, John; Shenton, Martha; McCarley, Robert W.; Grimson, W. Eric L.; Kikinis, Ron; Wells, William M.

2009-01-01

39

Flexible Parametrization of Generalized Parton Distributions: The Chiral-Odd Sector  

E-print Network

We present a physically motivated parameterization of the chiral-odd generalized parton distributions. The parametrization is an extension of our previous one in the chiral-even sector which was based on the reggeized diquark model. While for chiral even generalized distributions a quantitative fit with uncertainty estimation can be performed using deep inelastic scattering data, nucleon electromagnetic, axial and pseuoscalar form factors measurements, and all available deeply virtual Compton scattering data, the chiral-odd sector is far less constrained. While awaiting the analysis of measurements on pseudoscalar mesons exclusive electroproduction which are key for the extraction of chiral odd GPDs, we worked out a connection between the chiral-even and chiral-odd reduced helicity amplitudes using Parity transformations. The connection works for a class of models including two-components models. This relation allows us to estimate the size of the various chiral odd contributions and it opens the way for future quantitative fits.

G. R. Goldstein; J. O. Gonzalez Hernandez; S. Liuti

2013-11-03

40

Extremal charged rotating black holes in odd dimensions  

SciTech Connect

Employing higher order perturbation theory, we obtain charged rotating black holes in odd dimensions, where the Einstein-Maxwell Lagrangian may be supplemented with a Chern-Simons term. Starting from the Myers-Perry solutions, we use the electric charge as the perturbative parameter and focus on extremal black holes with equal-magnitude angular momenta. For Einstein-Maxwell-Chern-Simons theory with arbitrary Chern-Simons coupling constant, we perform the perturbations up to 3rd order for any odd dimension. We discuss the physical properties of these black holes and study their dependence on the charge. In particular, we show that the gyromagnetic ratio g of Einstein-Maxwell black holes differs from the lowest order perturbative value D-2, and that the first correction term to g/(D-2) is universal.

Allahverdizadeh, Masoud; Kunz, Jutta; Navarro-Lerida, Francisco [Institut fuer Physik, Universitaet Oldenburg, Postfach 2503 D-26111 Oldenburg (Germany); Departmento de Fisica Atomica, Molecular y Nuclear, Ciencias Fisicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain)

2010-07-15

41

Social Adjustment Among Taiwanese Children with Symptoms of ADHD, ODD, and ADHD Comorbid with ODD  

Microsoft Academic Search

This study examined social problems at school and relationships with peers, siblings, mothers, and fathers among children\\u000a with ADHD only (n = 41), ODD only (n = 14), ADHD + ODD (n = 47), and normal controls (n = 204) from a school-based sample of 2,463 first to ninth graders in Taiwan. ADHD and ODD symptoms were determined by teacher\\u000a and mother reports on the Conners’ Rating Scales and social

Wan-Ling Tseng; Yoshito Kawabata; Susan Shur-Fen Gau

2011-01-01

42

Isoscalar g Factors of Even-Even and Odd-Odd Nuclei  

E-print Network

We consider T=0 states in even-even and odd-odd N=Z nuclei. The g factors that emerge are isoscalar. We find that the single j shell model gives simple expressions for these g factors which for even-even nuclei are suprisingly close to the collective values for K=0 bands. The g factors of many 2+ in even-even nuclei and 1+ and 3+ states in odd-odd nuclei have g factors close to 0.5.

S. Yeager; L. Zamick; Y. Y. Sharon; S. J. Q. Robinson

2008-07-02

43

Competition between strong and de-coupling in odd-odd mass nuclei  

NASA Astrophysics Data System (ADS)

Competition of strong and decoupling is studied systematically for odd-odd mass nuclei as a function of the position of the Fermi surfaces ? F ( ?) and ? F ( ?) and the deformations ? and ?. As an example we use80Br. For a prolate deformation the odd proton likes to decouple while the odd neutron couples strongly. This favours a ground state angular momentum of 5 to 6. The strong coupling is described by the admixture of a d 5/2 nucleon. Only for the neutrons the admixture is so appreciably that it affects the spectrum and improves the agreement between theory and experiment for80Br.

Poggel, G.; Faessler, Amand; Schmid, K. W.

1981-03-01

44

Interior view, anteroom of the postmaster general's reception hall; shown ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Interior view, anteroom of the postmaster general's reception hall; shown here are two of the six aluminum statues of postal delivery men - New Post Office Building, Twelfth Street and Pennsylvania Avenue, Washington, District of Columbia, DC

45

Detail of southeast corner and pipes, shown along California Avenue; ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail of southeast corner and pipes, shown along California Avenue; camera facing north. - Mare Island Naval Shipyard, Central Power Plant, California Avenue, norhtwest corner of California Avenue & Seventh Street, Vallejo, Solano County, CA

46

QUADRATIC RECIPROCITY IN ODD CHARACTERISTIC KEITH CONRAD  

E-print Network

+ T + 1? The answer to questions like this can be found with the quadratic reciprocity law in F[T]. It has a strong resemblance to the quadratic reciprocity law in Z. We restrict to F with odd characteristic the quadratic reciprocity law. The proof of the law is in Section 3. Some applications are given in Section 4

Lozano-Robledo, Alvaro

47

Confusion between Odds and Probability, a Pandemic?  

ERIC Educational Resources Information Center

This manuscript discusses the common confusion between the terms probability and odds. To emphasize the importance and responsibility of being meticulous in the dissemination of information and knowledge, this manuscript reveals five cases of sources of inaccurate statistical language imbedded in the dissemination of information to the general…

Fulton, Lawrence V.; Mendez, Francis A.; Bastian, Nathaniel D.; Musal, R. Muzaffer

2012-01-01

48

Cloud Microphysics Spring 2013 **odd years?**  

E-print Network

ATS724 Cloud Microphysics (2-0-0) Spring 2013 **odd years?** Prerequisites: ATS620, ATS621; Ph, as the class will involve designing and building a simple cloud microphysical model. Course Description: **Sue and observations of nucleation, mechanisms of cloud droplet-spectra broadening, precipitation particle growth

49

ODD COUPLES Extraordinary Differences between the  

E-print Network

and is the coeditor of Sex, Size, and Gender Roles. * * * Praise for ODD COUPLES: "Balancing descriptive natural history with probing evolutionary biology, Fairbairn (Sex, Size & Gender Roles, coeditor), professor gender roles, we tend to think only of a narrow range of species conforming to our preconceptions about

Saltzman, Wendy

50

Optimal Betting Odds against Insider Traders  

Microsoft Academic Search

This paper examines the optimal pricing decision of a bookmaker facing a group of gamblers, some of whom have superior information to the bookmaker. The central result is that the normalized betting odds diverge systematically from the true possibilities of winning. Specifically, it is optimal for the bookmaker to follow a \\

Hyun Song Shin

1991-01-01

51

Study odd numbers with traditional functions  

E-print Network

In this paper we will focus on the study of relationships that can exist between odd numbers and different traditional functions like the gamma function, Riemann zeta function or function of von Mangoldt. Number theory applies to this study. It will also analyze the convergence of the series obtained as a result of that relationship.

Elias Rios

2012-08-21

52

Reuters Oddly Strange-but-true stories  

E-print Network

.S. Politics International Technology Entertainment Sports Lifestyle Oddly Enough Environment Health Science the width of a human hair, forming a thin layer of semiconductor material that can be used in electronics mourns Mormon leader Most Popular Articles RSS Feed EDITOR'S CHOICE Pictures Video Articles MOST POPULAR

Rogers, John A.

53

Contextual view of building 271 from across the river shown ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Contextual view of building 271 from across the river shown at center between coal sheds at left and building 91 at right; camera facing northwest. - Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west side between A Street & Third Street, Vallejo, Solano County, CA

54

59. DETAIL OF THIRD PAYLOAD CONTROL PANEL IN CONSOLE SHOWN ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

59. DETAIL OF THIRD PAYLOAD CONTROL PANEL IN CONSOLE SHOWN IN CA-133-1-A-58. NOTE 20-CHANNEL COMMUNICATIONS PANEL IN FOREGROUND. - Vandenberg Air Force Base, Space Launch Complex 3, Launch Operations Building, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

55

White Matter Development during Adolescence as Shown by Diffusion MRI  

ERIC Educational Resources Information Center

Previous volumetric developmental MRI studies of the brain have shown white matter development continuing through adolescence and into adulthood. This review presents current findings regarding white matter development and organization from diffusion MRI studies. The general trend during adolescence (age 12-18 years) is towards increasing…

Schmithorst, Vincent J.; Yuan, Weihong

2010-01-01

56

Sea level rise shown to drive coastal erosion  

Microsoft Academic Search

Our research has shown that an important relationship exists between sea level rise and sandy beach erosion. The link is highly multiplicative, with the long-term shoreline retreat rate averaging about 150 times that of sea level rise. For example, a sustained rise of 10 cm in sea level could result in 15 m of shoreline erosion. Such an amount is

Stephen P. Leatherman; Keqi Zhang; Bruce C. Douglas

2000-01-01

57

Such ion gels have shown superior performance as gate  

E-print Network

Such ion gels have shown superior performance as gate dielectrics in organic thin-film transistors (5). For many organic semiconductors, device perfor- mance is constrained by the num- ber of charge electric field leads to differential gel swelling and thus to bending. A possible route to accentu- ate

Zeebe, Richard E.

58

1. INTRODUCTION Freshwater ecosystems have been repeatedly shown to  

E-print Network

with the North Atlantic Oscillation Dietmar Straile1, David M. Livingstone2, Gesa A. Weyhenmeyer3, D. Glen George4 The North Atlantic Oscillation (NAO) affects the physics, hydrology, chemistry and biology, Sweden 4Centre for Ecology and Hydrology, Windermere, U.K. The North Atlantic Oscillation: Climatic

Livingstone, David M.

59

Odd Wisconsin at the Wisconsin Historical Society  

NSDL National Science Digital Library

The guiding disclaimer that informs this website offered by the Wisconsin Historical Society is that well-known dictum, "Je n'impose rien; je ne propose rien: j'expose," which means: "I do not impose anything; I do not propose anything: I expose." By drawing on its vast holdings of compelling and curious primary documents, the Wisconsin Historical Society offers these small portions of odd and unusual historical items that are quite worth perusing. The project was started in January 2004, and visitors can view the current items, or look through the monthly archives. The selections offered here may also be browsed by categories, such as odd lives, strange deaths, bizarre events, and animals. Some of the rather intriguing events that visitors can read about here include a first-hand account of the deep freeze of 1838 and Wisconsin's first poet, the rather eccentric James Gates Percival. It may truly be said that this site has "something for everyone."

60

Relativistic Hartree calculations of odd- A nuclei  

Microsoft Academic Search

Ground-state properties of odd-{ital A} nuclei near closed shells are calculated using self-consistent, relativistic mean-field models of baryon-meson dynamics. Contributions from Ï, Ï, and ρ mesons and the photon are included. Comparisons are made between linear and nonlinear mean-field models, and with calculations including vacuum polarization in a local density approximation. Results are given for (intrinsic) binding energies, rms radii,

R. J. Furnstahl; C. E. Price

1989-01-01

61

Beating the Odds: Prematurity and Posthemorrhagic Hydrocephalus  

Microsoft Academic Search

\\u000a Lucy was a miracle child. She overcame extreme odds and significant medical complications to become a spunky, chatty, child\\u000a beauty pageant contestant. When she was referred for an evaluation at age 5 years by a neurosurgeon, she was doing well academically\\u000a in a regular-education kindergarten classroom. However, both her parents and teachers acknowledged that she talked “too much”\\u000a and had

Jennifer I. Koop

62

59. Timbers from the lock are shown in one of ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

59. Timbers from the lock are shown in one of two large, unused, waste water settling tanks (near the city of New Haven, at some distance from the lock site). All members have been laid up with contemporary separating ties between them to ensure complete wetting during storage. - Wabash & Erie Canal, Lock No. 2, 8 miles east of Fort Wayne, adjacent to U.S. Route 24, New Haven, Allen County, IN

63

CXXXIII. Magnetic moments and quadrupole moments of odd-mass nuclei in jj-coupling  

Microsoft Academic Search

Magnetic moments and quadrupole moments of nuclei are treated in a model which considers all particles outside the core of completed levels on an equal footing. It is shown that in this way better agreement with experimental magnetic moments is obtained than from the simpler Schmidt model. The manner in which electric quadrupole moments arise in odd-neutron nuclei without the

B. H. Flowers

1952-01-01

64

Magnetic dipole moments of odd-odd N=Z nuclei  

Microsoft Academic Search

The experimental data of the magnetic dipole moments of low-lying states in odd-odd N=Z nuclei, which has increased recently by a factor of 2, are revisited within the simple shell model, taking the wave functions to be of the form Psicore(J=0,T=0)Psinp(J,T=0). Good agreement with the updated experimental data is obtained within the jj-coupling scheme Psinp[(nlj)2J,(T=0)], using the Schmidt values for

Yigal Ronen; Shalom Shlomo

1998-01-01

65

Low spin structure of the N=Z odd-odd nucleus 5025Mn25  

NASA Astrophysics Data System (ADS)

Low spin states in the odd-odd nucleus 50Mn were populated in the 50Cr(p,n?)50Mn fusion evaporation reaction at 15 MeV beam energy at the FN-Tandem accelerator in Cologne. ?-angular correlations, ?? coincidences, and Compton asymmetries were measured. 21 states of 50Mn were observed, 16 for the first time. Six new spin assignments and two parity assignments were made. Eight multipole-mixing ratios and nine new ?-decay branching ratios were determined for the first time. A full pf-shell model calculation for the low-lying states in 50Mn is compared to the data.

Schmidt, A.; Schneider, I.; Frießner, C.; Lisetskiy, A. F.; Pietralla, N.; Sebe, T.; Otsuka, T.; von Brentano, P.

2000-10-01

66

Gear Durability Shown To Be Improved by Superfinishing  

NASA Technical Reports Server (NTRS)

Gears, bearings, and similar mechanical elements transmit loads through contacting surfaces. At the NASA Glenn Research Center at Lewis Field, we postulated that the fatigue lives of gears could be improved by providing smoother tooth surfaces. A superfinishing process was applied to a set of conventionally ground, aerospace-quality gears. This process produced a highly polished, mirrorlike surface as shown in the preceding photograph. The surface fatigue lives of both superfinished and conventionally ground gears were measured by experiments. The superfinished gears survived about four times longer than the conventionally ground gears. These superfinished gears were produced from conventionally ground, aerospace-quality gears whose geometry had been inspected. The gears were superfinished by placing them in a vibrating bath consisting of water, detergent, abrasive powder, and small pieces of zinc. Upon removal from the bath, the surfaces were highly polished, as depicted in the preceding photograph. The gears were again inspected, and dimensional measurements made before and after the superfinishing operation were compared. Superfinishing removed the peaks of the grinding marks and left a much smoother surface. Profile and spacing checks proved that the overall gear tooth shape was not affected in any harmful way. Superfinishing uniformly removed approximately 2.5 microns from each surface.

Krautz, Timothy L.

2000-01-01

67

Measurement of lifetimes and tensor polarizabilities of odd parity states of atomic samarium  

E-print Network

1 Measurement of lifetimes and tensor polarizabilities of odd parity states of atomic samarium S for Beam Physics, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 A systematic measurement. The lifetimes were measured by detecting time- resolved fluorescence following pulsed laser excitation of atoms

Pines, Alexander

68

Odd-even glass transition temperatures in network-forming ionic glass homologue.  

PubMed

Odd-even effects, the non-monotonic dependency of physical properties on odd/even structural units, are widely observed in homologous series of crystalline materials. However, such alternation is not expected for molecular amorphous materials. Herein, we report the synthesis of a class of network-forming ionic glasses using multivalent ammonium cations and citrate anions. The glass transition temperatures of these amorphous solids show an alternating pattern with increasing backbone length. To understand the phenomenon's molecular origin, we performed incoherent elastic neutron scattering measurements of the nanosecond atomic dynamics. Our results suggest that the molecules' mobility, and thus the glass transition temperature, correlates with their structural symmetry. PMID:24417556

Yang, Ke; Tyagi, Madhusudan; Moore, Jeffrey S; Zhang, Yang

2014-01-29

69

Non-empirical nuclear energy functionals, pairing gaps and odd-even mass differences  

E-print Network

First, we briefly outline some aspects of the starting project to design non-empirical energy functionals based on low-momentum vacuum interactions and many-body perturbation theory. Second, we present results obtained within an approximation of such a scheme where the pairing part of the energy density functional is constructed at first order in the nuclear plus Coulomb two-body interaction. We discuss in detail the physics of the odd-even mass staggering and the necessity to compute actual odd-even mass differences to analyze it meaningfully.

T. Duguet; T. Lesinski

2009-07-06

70

W' signatures with odd Higgs particles  

NASA Astrophysics Data System (ADS)

We point out that W ' bosons may decay predominantly into Higgs particles associated with their broken gauge symmetry. We demonstrate this in a renormalizable model where the W ' and W couplings to fermions differ only by an overall normalization. This "meta-sequential" W ' boson decays into a scalar pair, with the charged one subsequently decaying into a W boson and a neutral scalar. These scalars are odd under a parity of the Higgs sector, which consists of a complex bidoublet and a doublet. The W ' and Z ' bosons have the same mass and branching fractions into scalars, and may show up at the LHC in final states involving one or two electroweak bosons and missing transverse energy.

Dobrescu, Bogdan A.; Peterson, Andrea D.

2014-08-01

71

Empirical formula applied to the lowest excitation energies of the natural parity odd multipole states in even-even nuclei  

E-print Network

We applied our recently proposed empirical formula, a formula quite successful in describing essential trends of the lowest excitation energies of the natural parity even multipole states, to the lowest excitation energies of the natural parity odd multipole states in even-even nuclei throughout the entire periodic table. Even though the systematic behavior of the lowest excitation energies of odd multipole states is quite different from those of even multipole states, we have shown that the same empirical formula also holds reasonably well for the odd multipole states with the exception of a few certain instances.

Guanghao Jin; Jin-Hee Yoon; Dongwoo Cha

2008-03-27

72

Spectroscopy of the odd-odd fp-shell nucleus 52Sc from secondary fragmentation  

E-print Network

The odd-odd fp-shell nucleus 52Sc was investigated using in-beam gamma-ray spectroscopy following secondary fragmentation of a 55V and 57Cr cocktail beam. Aside from the known gamma-ray transition at 674(5)keV, a new decay at E_gamma=212(3) keV was observed. It is attributed to the depopulation of a low-lying excited level. This new state is discussed in the framework of shell-model calculations with the GXPF1, GXPF1A, and KB3G effective interactions. These calculations are found to be fairly robust for the low-lying level scheme of 52Sc irrespective of the choice of the effective interaction. In addition, the frequency of spin values predicted by the shell model is successfully modeled by a spin distribution formulated in a statistical approach with an empirical, energy-independent spin-cutoff parameter.

A. Gade; R. V. F. Janssens; D. Bazin; B. A. Brown; C. M. Campbell; M. P. Carpenter; J. M. Cook; A. N. Deacon; D. -C. Dinca; S. J. Freeman; T. Glasmacher; B. P. Kay; P. F. Mantica; W. F. Mueller; J. R. Terry; S. Zhu

2006-03-02

73

High-spin states in the odd-odd N=Z nucleus 50Mn  

NASA Astrophysics Data System (ADS)

High-spin states in the odd-odd N=Z nucleus 50Mn have been identified. At low spin, the T=1 isobaric analogue states of 50Cr are established up to I?=4+. At high spin, the T=0 band built on the low-lying I?=5+ isomer in 50Mn becomes energetically favored and this band is observed up to its f7/2-shell termination at I?=15+. Spherical shell model calculations in the full pf shell are found to be in excellent agreement with the experimental results. In addition, a weak side band in 50Mn is observed to spin (12-) and is interpreted as a possible octupole vibrational structure.

Svensson, C. E.; Lenzi, S. M.; Napoli, D. R.; Poves, A.; Ur, C. A.; Bazzacco, D.; Brandolini, F.; Cameron, J. A.; de Angelis, G.; Gadea, A.; Haslip, D. S.; Lunardi, S.; Maqueda, E. E.; Martínez-Pinedo, G.; Nagarajan, M. A.; Alvarez, C. Rossi; Vitturi, A.; Waddington, J. C.

1998-11-01

74

Quantum Phase Transitions in Odd-Mass Nuclei  

E-print Network

Quantum shape-phase transitions in odd-even nuclei are investigated in the framework of the interacting boson-fermion model. Classical and quantum analysis show that the presence of the odd fermion strongly influences the location and nature of the phase transition, especially near the critical point. Experimental evidence for the occurrence of spherical to axially-deformed transitions in odd-proton nuclei Pm, Eu and Tb (Z=61, 63, 65) is presented.

A. Leviatan; D. Petrellis; F. Iachello

2011-10-04

75

K4-free graphs with no odd holes  

Microsoft Academic Search

Abstract All K4-free graphs with no odd hole and no odd antihole are three-colourable, but what about K4- free graphs with no odd hole? They are not necessarily three-colourable, but we prove a conjecture of Ding that they are all four-colourable. This is a consequence of a decomposition theorem for such graphs; we prove that every such graph either has

Maria Chudnovsky; Neil Robertson; Paul D. Seymour; Robin Thomas

2010-01-01

76

Odd-even mass difference and isospin dependent pairing interaction  

SciTech Connect

The neutron and proton odd-even mass differences are studied with Hartree-Fock + BCS (HF+BCS) calculations with Skyrme interactions and an isospin dependent contact pairing interaction, which is recently derived from a microscopic nucleon-nucleon interaction. To this end, we perform HF+BCS calculations for even and odd semi-magic tin and lead isotopes together with even and odd Z isotones with N=50 and 82. The filling approximation is applied to the last unoccupied particle in odd nuclei. Comparisons with the experimental data show a clear manifestation of the isospin dependent pairing correlations in both proton and neutron pairing gaps.

Bertulani, C. A. [Department of Physics, Texas A and M University-Commerce, Commerce, Texas 75429 (United States); Lue, H. F. [College of Science, China Agricultural University, Beijing (China); Sagawa, H. [Center for Mathematics and Physics, University of Aizu, Aizu-Wakamatsu, 965-8580 Fukushima (Japan)

2009-08-15

77

More Theoretical Odds and Practical Ends  

ERIC Educational Resources Information Center

Illustrates how various common objects can be used in the classroom to demonstrate physical science concepts. Describes the use of toys, ice cubes, light bulbs, meter sticks, and wine bottles as teaching aids. (MLH)

Siddons, J. C.

1975-01-01

78

Multi-quasiparticle structures up to spin $\\sim{44}\\hbar$ in the odd-odd nucleus $^{168}$Ta  

E-print Network

High-spin states in the odd-odd nucleus $^{168}$Ta have been populated in the $^{120}$Sn($^{51}$V,3n) reaction. Two multi-quasiparticle structures have been extended significantly from spin $\\sim{20\\hbar}$ to above ${40\\hbar}$. As a result, the first rotational alignment has been fully delineated and a second band crossing has been observed for the first time in this nucleus. Configurations for these strongly-coupled rotational bands are proposed based on signature splitting, $B(M1)/B(E2)$ ratio information, and observed rotation-alignment behavior. Properties of the observed bands in $^{168}$Ta are compared to related structures in the neighboring odd-$Z$, odd-$N$, and odd-odd nuclei and are discussed within the framework of the cranked shell model.

X. Wang; D. J. Hartley; M. A. Riley; L. L. Riedinger; A. Aguilar; M. P. Carpenter; C. J. Chiara; P. Chowdhury; I. Darby; U. Garg; Q. Ijaz; R. V. F. Janssens; F. G. Kondev; S. Lakshmi; T. Lauritsen; W. C. Ma; E. A. McCutchan; S. Mukhopadhyay; E. P. Seyfried; I. Stefanescu; S. K. Tandel; U. S. Tandel; C. Teal; J. R. Vanhoy; S. Zhu

2010-11-08

79

Executive functioning in children: a comparison of hospitalised ODD and ODD\\/ADHD children and normal controls  

Microsoft Academic Search

Background: Deficits in executive functioning are supposed to have a predisposing influence on im- pulsive or aggressive behaviour. We tested the hypothesis that oppositional-defiant disorder (ODD) children with or without attention deficit hyperactivity disorder (ADHD) have problems in executive functioning. Method: Seventy-seven 7- to 12-year-old children (15 ODD, 26 ODD\\/ADHD, and 36 normal controls), all with normal IQ, completed 7

Stephanie H. M. van Goozen; Peggy T. Cohen-Kettenis; Heddeke Snoek; Walter Matthys; Hanna Swaab-Barneveld; Herman van Engeland

2004-01-01

80

Band structures in doubly odd Rh98  

NASA Astrophysics Data System (ADS)

Excited states in the transitional doubly odd Rh98 nucleus were populated in the As75(Si28,2p3n) fusion-evaporation reaction using the 120-MeV incident Si28 beam. The subsequent de-excitations were investigated through in-beam ?-ray spectroscopic techniques using an early implementation phase of the Indian National Gamma Array (INGA) spectrometer equipped with 18 clover Ge detectors. The level structures in Rh98 have been established up to excitation energy ?10 MeV and angular momentum ˜23?. The previously reported level schemes are considerably modified and extended substantially. Significant expansion of the level scheme at low excitation energies stipulates that the previously reported 842-726-994-980-265 keV ?-transition cascade in Rh98 is not directly based on the ground state (T1/2 = 8.7 min). Tilted-axis cranking (TAC) shell-model calculations have been used to put the present level scheme of Rh98 in perspective. Level structures have been interpreted in terms of the rotational bands based on the ?p1/2??h11/2 [triaxiality parameter (?) = 25?], and ?f5/2??h11/2 proton-neutron configurations having moderate quadrupole deformation (?2 ? 0.13) and the admixtures. Excited band structures are based on the ?p1/2/f5/2??(g9/2)2??h11/2 configuration and the fully stretched [?p1/2??(h11/2)2??d5/2]13- configuration.

Kumar, S.; Sihotra, S.; Singh, K.; Singh, V.; Sandeep, Goswamy, J.; Singh, N.; Mehta, D.; Malik, S. S.; Palit, R.; Kumar, R.; Singh, R. P.; Muralithar, S.; Bhowmik, R. K.

2014-03-01

81

Middle atmosphere heating by exothermic chemical reactions involving odd-hydrogen species  

NASA Technical Reports Server (NTRS)

The rate of heating which occurs in the middle atmosphere due to four exothermic reactions involving members of the odd-hydrogen family is calculated. The following reactions are considered: O + OH yields O2 + H; H + O2 + M yields HO2 + M; H + O3 yields OH + O2; and O + HO2 yields OH + O2. It is shown that the heating rates due to these reactions rival the oxygen-related heating rates conventionally considered in middle-atmosphere models. The conversion of chemical potential energy into molecular translational energy (heat) by these odd-hydrogen reactions is shown to be a significant energy source in the middle atmosphere that has not been previously considered.

Mlynczak, Martin G.; Solomon, Susan

1991-01-01

82

Singular eigenstates in the even(odd) length Heisenberg spin chain  

E-print Network

Introducing a regularization scheme, we derive a set of equations for the rapidities of the singular solutions, whose distinct and self-conjugate solutions produce Bethe eigenstates. We obtain singular eigenstates and their corresponding eigenvalues of the transfer matrix of the spin-1/2 XXX chain. For an even length spin-1/2 XXX chain, we show that the singular solutions \\{\\lambda_\\alpha\\} are invariant under the sign changes of their rapidities, \\{\\lambda_\\alpha\\}=\\{-\\lambda_\\alpha\\}. For odd N length spin-1/2 chain in the three down-spin sector, it has been analytically shown that there exist singular solutions in any finite length of the spin chain of the form N= 3\\left(2k+1\\right) with k=1, 2, 3, \\cdots. It is also shown that there exist no singular solutions in the four down-spin sector for some odd length spin-1/2 XXX chains.

Giri, Pulak Ranjan

2014-01-01

83

Physics.  

ERIC Educational Resources Information Center

The author presents the argument that the past few years, in terms of new discoveries, insights, and questions raised, have been among the most productive in the history of physics. Selected for discussion are some of the most important new developments in physics research. (Author/SA)

Bromley, D. Allan

1980-01-01

84

Physics  

Microsoft Academic Search

Nuclear, plasma, elementary particle, and atomic and molecular physics are surveyed along with the physics of condensed matter and relativistic astrophysics. Attention is given to the discovery of quarks, psi particles, bosons and nuclear quantum states, the role of group theory and the search for a unified field theory. Also considered are magnetic and inertial confinement regarding fusion power, and

D. A. Bromley

1980-01-01

85

Cosmic impact: What are the odds?  

NASA Astrophysics Data System (ADS)

Firestone et al. (PNAS 104, 16016-16021, 2007) propose that the impact of a ~4 km diameter comet (or multiple bodies making up a similar mass) led to the Younger Dryas cooling and extinction of megafauna in North America, 12,900 years ago. Even more provocatively, Firestone et al. (Cycle of Cosmic Catastrophes, Bear & Co. Books, 2006, 392pp), suggest that a nearby supernova may have produced a comet shower leading to the impact event, either by disturbing the Oort Cloud or by direct injection of 4-km comet-like bodies to the solar neighborhood. Here we show: (a) A supernova shockwave or mass ejection is not capable of triggering a shower of comets from the Oort Cloud. (b) An Oort Cloud shower from whatever cause would take 100,000 years or more for the perturbed comets to arrive in the inner solar system, and the peak flux would persist for some hundreds of thousands more years. (c) Even if all 20 solar masses or so of ejected matter from a SN were in the form of 4-km diameter balls, the probability of even one such ball hitting the Earth from an event 100 light years away would be about 3e-5. (d) A 4-km diameter ball traveling fast enough to get here from 100 LY away in some tens of thousands of years would deliver the energy of a 50 km diameter impactor traveling at typical Earth-impact velocity (~20 km/sec). We review the current impact flux on the Earth from asteroids and comets, and show that the probability of an impact of a 4-km diameter asteroid in an interval of 13,000 years is about one in a thousand, and the probability of a comet impact of that size is a few in a million. An "impact shower" caused by the injection or breakup of comets or asteroids in the inner solar system by whatever means would take tens to hundreds of thousands of years to clear out, thus the population of NEOs we see now with our telescopic surveys is what we’ve had for the last few tens of thousands of years, at least. Faced with such low odds, the evidence that such a large cosmic impact is the cause of the Younger Dryas boundary and cooling, and that there is no other possible cause, needs to be extraordinary indeed.

Harris, A. W.

2009-12-01

86

Massive and massless higher spinning particles in odd dimensions  

NASA Astrophysics Data System (ADS)

We study actions for massive bosonic particles of higher spins by dimensionally reducing an action for massless particles. For the latter we take a model with a SO( N) extended local supersymmetry on the worldline, that is known to describe massless (conformal) particles of higher spins in flat spacetimes of even dimensions. Dimensional reduction produces an action for massive spinning particles in odd dimensions. The field equations that emerge in a quantization à la Dirac are shown to be equivalent to the Fierz-Pauli ones. The massless limit generates a multiplet of massless states with higher spins, whose first quantized field equations have a geometric form with fields belonging to various types of Young tableaux. These geometric equations can be partially integrated to show their equivalence with the standard Fronsdal-Labastida equations. We covariantize our model to check whether an extension to curved spacetimes can be achieved. Restricting to (A)dS spaces, we find that the worldline gauge algebra becomes nonlinear, but remains first class. This guarantees consistency on such backgrounds. A light cone analysis confirms the presence of the expected propagating degrees of freedom. A covariant analysis is worked out explicitly for the massive case, which is seen to give rise to the Fierz-Pauli equations extended to (A)dS spaces. It is worth noting that in D = 3 the massless limit of our model with N ? ? has the same field content of the Vasiliev's theory that accommodates each spin exactly once.

Bastianelli, Fiorenzo; Bonezzi, Roberto; Corradini, Olindo; Latini, Emanuele

2014-09-01

87

Massive and massless higher spinning particles in odd dimensions  

E-print Network

We study actions for massive bosonic particles of higher spins by dimensionally reducing an action for massless particles. For the latter we take a model with a SO(N) extended local supersymmetry on the worldline, that is known to describe massless (conformal) particles of higher spins in flat spacetimes of even dimensions. Dimensional reduction produces an action for massive spinning particles in odd dimensions. The field equations that emerge in a quantization a la Dirac are shown to be equivalent to the Fierz-Pauli ones. The massless limit generates a multiplet of massless states with higher spins, whose first quantized field equations have a geometric form with fields belonging to various types of Young tableaux. These geometric equations can be partially integrated to show their equivalence with the standard Fronsdal-Labastida equations. We covariantize our model to check whether an extension to curved spacetimes can be achieved. Restricting to (A)dS spaces, we find that the worldline gauge algebra becomes nonlinear, but remains first class. This guarantees consistency on such backgrounds. A light cone analysis confirms the presence of the expected propagating degrees of freedom. A covariant analysis is worked out explicitly for the massive case, which is seen to give rise to the Fierz-Pauli equations extended to (A)dS spaces. It is worth noting that in D=3 the massless limit of our model when N goes to infinity has the same field content of the Vasiliev's theory that accommodates each spin exactly once.

Fiorenzo Bastianelli; Roberto Bonezzi; Olindo Corradini; Emanuele Latini

2014-07-18

88

Massive and massless higher spinning particles in odd dimensions  

E-print Network

We study actions for massive bosonic particles of higher spins by dimensionally reducing an action for massless particles. For the latter we take a model with a SO(N) extended local supersymmetry on the worldline, that is known to describe massless (conformal) particles of higher spins in flat spacetimes of even dimensions. Dimensional reduction produces an action for massive spinning particles in odd dimensions. The field equations that emerge in a quantization a la Dirac are shown to be equivalent to the Fierz-Pauli ones. The massless limit generates a multiplet of massless states with higher spins, whose first quantized field equations have a geometric form with fields belonging to various types of Young tableaux. These geometric equations can be partially integrated to show their equivalence with the standard Fronsdal-Labastida equations. We covariantize our model to check whether an extension to curved spacetimes can be achieved. Restricting to (A)dS spaces, we find that the worldline gauge algebra becom...

Bastianelli, Fiorenzo; Corradini, Olindo; Latini, Emanuele

2014-01-01

89

Physics  

NASA Astrophysics Data System (ADS)

Nuclear, plasma, elementary particle, and atomic and molecular physics are surveyed along with the physics of condensed matter and relativistic astrophysics. Attention is given to the discovery of quarks, psi particles, bosons and nuclear quantum states, the role of group theory and the search for a unified field theory. Also considered are magnetic and inertial confinement regarding fusion power, and the use of tunable lasers and microwave spectroscopy to study Rydberg states. In addition, surface physics, amorphous solids, superfluidity and gravitational collapse are discussed.

Bromley, D. A.

1980-07-01

90

Interventions shown to aid executive function development in children 4 to 12 years old.  

PubMed

To be successful takes creativity, flexibility, self-control, and discipline. Central to all those are executive functions, including mentally playing with ideas, giving a considered rather than an impulsive response, and staying focused. Diverse activities have been shown to improve children's executive functions: computerized training, noncomputerized games, aerobics, martial arts, yoga, mindfulness, and school curricula. All successful programs involve repeated practice and progressively increase the challenge to executive functions. Children with worse executive functions benefit most from these activities; thus, early executive-function training may avert widening achievement gaps later. To improve executive functions, focusing narrowly on them may not be as effective as also addressing emotional and social development (as do curricula that improve executive functions) and physical development (shown by positive effects of aerobics, martial arts, and yoga). PMID:21852486

Diamond, Adele; Lee, Kathleen

2011-08-19

91

Interventions shown to Aid Executive Function Development in Children 4-12 Years Old *  

PubMed Central

To be successful takes creativity, flexibility, self-control, and discipline. Central to all those are ‘executive functions,’ including mentally playing with ideas, giving a considered rather than an impulsive response, and staying focused. Diverse activities have been shown to improve children’s executive functions – computerized training, non-computerized games, aerobics, martial arts, yoga, mindfulness, and school curricula. Central to all these is repeated practice and constantly challenging executive functions. Children with worse executive functions initially, benefit most; thus early executive-function training may avert widening achievement gaps later. To improve executive functions, focusing narrowly on them may not be as effective as also addressing emotional and social development (as do curricula that improve executive functions) and physical development (shown by positive effects of aerobics, martial arts, and yoga). PMID:21852486

Diamond, Adele; Lee, Kathleen

2011-01-01

92

Stability and Change of ODD, CD and ADHD Diagnosis in Referred Preschool Children.  

PubMed

Longitudinal studies have shown that preschool children's diagnosis of Oppositional Defiant Disorder (ODD), Conduct Disorder (CD) and Attention-Deficit/Hyperactivity Disorder (ADHD) are likely to persist into school age. However, limited attention has been paid to instability of diagnosis. The aim of the present study, therefore, was to investigate both stability and change of ODD, CD and ADHD diagnosis in children aged 3.5-5.5 years. For diagnosing these disorders, a semi-structured diagnostic parent interview, i.e., the Kiddie-Disruptive Behavior Disorder Schedule (K-DBDS), was used at the first assessment and at follow-up assessments (9 and 18 months). Five diagnostic stability groups (chronic, partial remission, full remission, new onset, no diagnosis) were compared with regard to impairment and number of symptoms. Participants were referred preschool children with externalizing behavioral problems (N?=?193; 83 % male) and typically developing (TD) children (N?=?58; 71 % male). Follow-up assessments allowed to distinguish children belonging to the chronic group of ODD, CD or ADHD from those belonging to one of the remission groups. In addition, there was a substantial number of children with a new onset diagnosis. In conclusion, as a complement to studies showing stability of ODD, CD and ADHD diagnosis into school age, present findings point to changes of diagnosis in the preschool and early school period. Diagnostic reassessments therefore are needed in this age group. PMID:24781411

Bunte, Tessa L; Schoemaker, Kim; Hessen, David J; van der Heijden, Peter G M; Matthys, Walter

2014-10-01

93

NUCLEAR SCIENCE AND ENGINEERING: 124, 482-491 (1996) Fission Cross-Section Measurements of the Odd-Odd  

E-print Network

NUCLEAR SCIENCE AND ENGINEERING: 124, 482-491 (1996) Fission Cross-Section Measurements of the Odd-Odd Isotopes 232Pa, 238Np, and 236Np Y. Danon* Rensselaer Polytechnic Institute, Department of Nuclear, 1995 Accepted March 9, 1996 Abstract- Transmutation ofactinide waste into fission products could

Danon, Yaron

94

When Is an Odd Number Not Odd? Influence of Task Rule on the MARC Effect for Numeric Classification  

ERIC Educational Resources Information Center

When classifying numbers as odd or even with left-right keypresses, performance is better with the mapping even-right/odd-left than with the opposite mapping. This linguistic markedness association of response codes (MARC) effect has been attributed to compatibility between the linguistic markedness of stimulus and response codes. In 2 experiments…

Cho, Yang Seok; Proctor, Robert W.

2007-01-01

95

Level Density In Interacting Boson-Fermion-Fermion Model (IBFFM) Of The Odd-Odd Nucleus 196Au  

SciTech Connect

The level density of the odd-odd nucleus 196Au is investigated in the interacting boson-fermion-fermion model (IBFFM) which accounts for collectivity and complex interaction between quasiparticle and collective modes.The IBFFM total level density is fitted by Gaussian and its tail is also fitted by Bethe formula and constant temperature Fermi gas model.

Kabashi, Skender; Bekteshi, Sadik [Faculty of Natural Sciences, University of Prishtina, 10000 UNMIK, Kosovo (Country Unknown)

2007-04-23

96

Physics  

NSDL National Science Digital Library

Physics is the scientific study of the basic principles of the universe, including matter, energy, motion and force, and their interactions. Major topics include classical mechanics, thermodynamics, light and optics, electromagnetism and relativity.

K-12 Outreach,

97

Applications of the odd symplectic group in Hamiltonian systems  

NASA Astrophysics Data System (ADS)

In this paper we give two applications of the odd symplectic group to the study of the linear Poincaré maps of a periodic orbits of a Hamiltonian vector field, which cannot be obtained using the standard symplectic theory. First we look at the geodesic flow. We show that the period of the geodesic is a noneigenvalue modulus of the conjugacy class in the odd symplectic group of the linear Poincaré map. Second, we study an example of a family of periodic orbits, which forms a folded Robinson cylinder. The stability of this family uses the fact that the unipotent odd symplectic Poincaré map at the fold has a noneigenvalue modulus.

Cushman, Richard; Bates, Larry

2011-02-01

98

Effective $?$ term by CP-odd electromagnetic background fields  

E-print Network

We discuss our study of QCD in the presence of CP-odd electromagnetic (e.m.) background fields. We investigate the propagation of the CP-odd term from the e.m. sector to the strong sector, inducing an effective $\\theta$ term. We discuss the method we have used in our lattice QCD simulations, and the results of our analysis, which are relevant to the determination of the effective pseudoscalar QED-QCD interactions. We also explore how these CP-odd e.m. background fields influence the number of the Dirac zero modes in our configurations.

Claudio Bonati; Guido Cossu; Massimo D'Elia; Marco Mariti; Francesco Negro

2013-12-10

99

Tell Me the Odds (of Cancer)  

NSDL National Science Digital Library

Through four lessons and three hands-on activities, students learn the concepts of refraction and interference in order to solve an engineering challenge: "In 2013, actress Angelina Jolie underwent a double mastectomy, not because she had been diagnosed with breast cancer, but merely to lower her cancer risk. But what if she never inherited the gene(s) that are linked to breast cancer and endured surgery unnecessarily? Can we create a new method of assessing people's genetic risks of breast cancer that is both efficient and cost-effective?" While pursuing a solution to this challenge, students learn about some high-tech materials and delve into the properties of light, including the equations of refraction (index of refraction, Snell's law). Students ultimately propose a method to detect cancer-causing genes by applying the refraction of light in a porous film in the form of an optical biosensor. Investigating this challenge question through this unit is designed for an honors or AP level physics class, although it could be modified for conceptual physics.

Vu Bioengineering Ret Program

100

Cancer and Parkinson's disease: the odd couple.  

PubMed

Epidemiological studies have consistently shown that individuals with Parkinson's disease (PD) are less likely to develop nonmelanoma cancers and vice versa. In contrast, the co-occurrence of PD and melanoma has been reported in numerous studies. The exact mechanisms underlying the observed cancer-PD association are not clear. Different hypotheses have been put forward, including shared environmental/lifestyle factors (e.g., smoking and socioeconomic status) and common genetic components (e.g., parkinson protein 2 [PARK2], leucine-rich repeat kinase 2 [LRRK2], Parkinson disease [autosomal recessive, early onset] 7 [PARK7, DJ-1] and pigmentation genes). In the current review, we summarize recent findings to offer new insight into the pathogenesis of both conditions. PMID:21494699

Gao, X; Ning, Y

2011-03-01

101

People with OCD May Have Higher Odds for Schizophrenia  

MedlinePLUS

... People With OCD May Have Higher Odds for Schizophrenia: Study But the absolute risk to any one ... 3, 2014 Related MedlinePlus Pages Obsessive-Compulsive Disorder Schizophrenia WEDNESDAY, Sept. 3, 2014 (HealthDay News) -- People with ...

102

Note on the Odds Ratio and the Probability Ratio  

Microsoft Academic Search

This note compares the odds ratio with the probability ratio (relative risk). These quantities arise, for example, in the analysis of educational and social science data by means of logistic regression.

Michael P. Cohen

2000-01-01

103

On a no-go theorem for classical Maxwell-Lorentz electrodynamics in odd-dimensional worlds  

NASA Astrophysics Data System (ADS)

A non-existence theorem of classical electrodynamics in odd-dimensional spacetimes is shown to be invalid. The source of the error is pointed out, and is then demonstrated during the derivation of the fields generated by a uniformly moving point source.

Aharonovich, I.; Horwitz, L. P.

2012-03-01

104

Computing an Exact Confidence Interval for the Common Odds Ratio in Several 2×2 Contingency Tables  

Microsoft Academic Search

A quadratic time network algorithm is provided for computing an exact confidence interval for the common odds ratio in several 2×2 independent contingency tables. The algorithm is shown to be a considerable improvement on an existing algorithm developed by Thomas (1975), which relies on exhaustive enumeration. Problems that would formerly have consumed several CPU hours can now be solved in

Cyrus R. Mehta; Nitin R. Patel; Robert Gray

1985-01-01

105

Constraints on a Parity-even/Time-Reversal-odd Interaction  

E-print Network

Time-Reversal-Invariance non-conservation has for the first time been unequivocally demonstrated in a direct measurement, one of the results of the CPLEAR experiment. What is the situation then with regard to time-reversal-invariance non-conservation in systems other than the neutral kaon system? Two classes of tests of time-reversal-invariance need to be distinguished: the first one deals with parity violating (P-odd)/time-reversal-invariance non-conserving (T-odd) interactions, while the second one deals with P-even/T-odd interactions (assuming CPT conservation this implies C-conjugation non-conservation). Limits on a P-odd/T-odd interaction follow from measurements of the electric dipole moment of the neutron. This in turn provides a limit on a P-odd/T-odd pion-nucleon coupling constant which is 10^-4 times the weak interaction strength. Limits on a P-even/T-odd interaction are much less stringent. The better constraint stems also from the measurement of the electric dipole moment of the neutron. Of all the other tests, measurements of charge-symmetry breaking in neutron-proton elastic scattering provide the next better constraint. The latter experiments were performed at TRIUMF (at 477 and 347 MeV) and at IUCF (at 183 MeV). Weak decay experiments (the transverse polarization of the muon in K+ -> pi0 mu+ nu and the transverse polarization of the positrons in polarized muon decay) have the potential to provide comparable or possibly better constraints.

Willem T. H. van Oers

2000-05-10

106

T-parity odd heavy leptons at the LHC  

SciTech Connect

Little Higgs models with T parity can easily satisfy electroweak precision tests and at the same time give a stable particle which is a candidate for cold dark matter. In addition to little Higgs heavy gauge bosons, this type of model predicts a set of new T-odd fermions, which may show quite interesting signatures at colliders. We study purely leptonic signatures of T-odd leptons at the (LHC.

Cacciapaglia, Giacomo; Deandrea, Aldo; Choudhury, S. Rai; Gaur, Naveen [Universite de Lyon (France); Universite Lyon 1, CNRS/IN2P3, UMR5822 IPNL, F-69622 Villeurbanne Cedex (France); Center for Theoretical Physics (CTP), Jamia Millia University, Delhi, and Indian Institute of Science Education and Research (IISER), Govindpura, Bhopal (India); Department of Physics and Astrophysics, University of Delhi, Delhi - 110007 (India)

2010-04-01

107

Electric Dipole Moments of Neutron-Odd Nuclei  

E-print Network

The electric dipole moments (EDMs) of neutron-odd nuclei with even protons are systematically evaluated. We first derive the relation between the EDM and the magnetic moment operators by making use of the core polarization scheme. This relation enables us to calculate the EDM of neutron-odd nuclei without any free parameters. From this calculation, one may find the best atomic system suitable for future EDM experiments.

Takehisa Fujita; Sachiko Oshima

2011-02-15

108

Odd cloud in the Ross Sea, Antarctica  

NASA Technical Reports Server (NTRS)

On January 28, 2002, MODIS captured this image of an interesting cloud formation in the boundary waters between Antarctica's Ross Sea and the Southern Ocean. A dragon? A snake? A fish? No, but it is an interesting example of the atmospheric physics of convection. The 'eye' of this dragon-looking cloud is likely a small spot of convection, the process by which hot moist air rises up into the atmosphere, often producing big, fluffy clouds as moisture in the air condenses as rises into the colder parts of the atmosphere. A false color analysis that shows different kinds of clouds in different colors reveals that the eye is composed of ice crystals while the 'body' is a liquid water cloud. This suggests that the eye is higher up in the atmosphere than the body. The most likely explanation for the eye feature is that the warm, rising air mass had enough buoyancy to punch through the liquid water cloud. As a convective parcel of air rises into the atmosphere, it pushes the colder air that is higher up out of its way. That cold air spills down over the sides of the convective air mass, and in this case has cleared away part of the liquid cloud layer below in the process. This spilling over of cold air from higher up in the atmosphere is the reason why thunderstorms are often accompanied by a cool breeze. Credit: Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC

2002-01-01

109

Fermi superallowed ?+ decays and T=1 ground states of heavy odd-odd N=Z nuclei  

NASA Astrophysics Data System (ADS)

The ?+-decay half-lives of the neutron-deficient odd-odd N=Z nuclei 74Rb, 78Y, 82Nb, and 86Tc have been measured following the fragmentation of a primary 92Mo beam at an energy of 60 MeV per nucleon at the GANIL laboratory, France. This was achieved by correlating ?+ decays with the implantation of unambiguously identified fragments at the final focus of the LISE3 separator. The deduced log10 ft1/2 values are consistent with 0+-->0+, Fermi superallowed transitions, which together with the measured ?+-detection efficiencies, suggest T=1, I?=0+ ground states for these odd-odd N=Z nuclei. These data represent the heaviest N=Z systems for which Fermi superallowed decays have been established.

Garcés Narro, J.; Longour, C.; Regan, P. H.; Blank, B.; Pearson, C. J.; Lewitowicz, M.; Miehé, C.; Gelletly, W.; Appelbe, D.; Axelsson, L.; Bruce, A. M.; Catford, W. N.; Chandler, C.; Clark, R. M.; Cullen, D. M.; Czajkowski, S.; Daugas, J. M.; Dessagne, P.; Fleury, A.; Frankland, L.; Giovinazzo, J.; Greenhalgh, B.; Grzywacz, R.; Harder, M.; Jones, K. L.; Kelsall, N.; Kszczot, T.; Page, R. D.; Reed, A. T.; Sorlin, O.; Wadsworth, R.

2001-04-01

110

Bounds on P-odd T-odd Interactions from Zero-Energy Crossings in Resonance Neutron Reactions  

NASA Astrophysics Data System (ADS)

We discuss the study of Parity-odd Time Reversal Violation (P-odd TRV) via shifts in the zero-energy crossings of angular correlations in polarized-neutron capture reactions [1]. In contrast to the conventional approach for studying P-odd TRV at p-wave resonances through the polarized-beam, polarized- target triple-correlation s ot I × k, energy shift studies require only a polarized beam. The measurements can be performed with an array of high purity germanium detectors at, for example, the SNS at Oak Ridge. We review the two-level result for the shift in the zero-energy crossing of the correlation sn ot k_?, consider corrections associated with distant states, and outline statistical issues regarding extraction of a bound on an rms P-odd TRV compound nuclear matrix element

Davis, E. D.; Gould, C. R.; Mitchell, G. E.; Sharapov, E. I.

2003-10-01

111

Proton-hole-induced bands in odd-odd /sup 116,118,120,122/I nuclides  

SciTech Connect

..delta..J = 1 bands were observed in the odd-odd /sup 116en-dash122/I nuclides with the (/sup 12/C,pn), (/sup 10/B,4n), and (/sup 7/Li,3n) reactions via ..gamma..-ray spectroscopy. In all four cases, the band properties are consistent with the collectivity associated with the g/sub 9/2/ proton-hole intruder and a decoupled h/sub 11/2/ neutron.

Quader, M.A.; Piel W.F. Jr.; Vajda, S.; Watson W.A. III; Yang, F.C.; Fossan, D.B.

1984-11-01

112

P-odd, P-even, and T-odd asymmetries in true quaternary fission of nuclei  

SciTech Connect

The coefficients of P-odd, P-even, and T -odd asymmetries for a third and a fourth prescission particle emitted in the true quaternary fission of nuclei that was induced by polarized cold neutrons were studied on the basis of quantum-mechanical fission theory. By using non-evaporation (nonadiabatic) mechanisms of light-particle emission, these coefficients were compared with the analogous coefficients for prescission third particles emitted in the ternary fission of nuclei.

Kadmensky, S. G., E-mail: kadmensky@phys.vsu.ru; Titova, L. V. [Voronezh State University (Russian Federation)] [Voronezh State University (Russian Federation)

2013-04-15

113

Characterization of isomers in the neutron-rich odd-odd nucleus Pm156  

NASA Astrophysics Data System (ADS)

Critical examination of the experimental data from Nd156 and Pm156 ? decays and the observed location of relevant neutron and proton orbitals in the neighboring odd-A isotones and isotopes, taken together with the low-lying two-quasiparticle (2qp) structures expected in Pm156 from the rotor-particle model, lead to the conclusion that a consistent description of all the available data is achieved with the I?=4+ spin-parity assignment to the 26.7s156Pm ground state (g.s.) and assignment of I?=1+ to its 150.3-keV isomer with the 2qp configuration 4g.s.+{po:5/2[532?]±no:3/2[521?]}1150+. In the process, a two-neutron configuration is also suggested for the 1509-keV 4+ level in the daughter nucleus Sm156. The present analysis reiterates the important question of whether the ?-decay logft value, by itself, can be employed to deduce the relative parity of the ?-connected states.

Sood, P. C.; Sainath, M.; Gowrishankar, R.; Sai, K. Vijay

2011-02-01

114

Use of prior odds for missing persons identifications  

PubMed Central

Identification of missing persons from mass disasters is based on evaluation of a number of variables and observations regarding the combination of features derived from these variables. DNA typing now is playing a more prominent role in the identification of human remains, and particularly so for highly decomposed and fragmented remains. The strength of genetic associations, by either direct or kinship analyses, is often quantified by calculating a likelihood ratio. The likelihood ratio can be multiplied by prior odds based on nongenetic evidence to calculate the posterior odds, that is, by applying Bayes' Theorem, to arrive at a probability of identity. For the identification of human remains, the path creating the set and intersection of variables that contribute to the prior odds needs to be appreciated and well defined. Other than considering the total number of missing persons, the forensic DNA community has been silent on specifying the elements of prior odds computations. The variables include the number of missing individuals, eyewitness accounts, anthropological features, demographics and other identifying characteristics. The assumptions, supporting data and reasoning that are used to establish a prior probability that will be combined with the genetic data need to be considered and justified. Otherwise, data may be unintentionally or intentionally manipulated to achieve a probability of identity that cannot be supported and can thus misrepresent the uncertainty with associations. The forensic DNA community needs to develop guidelines for objectively computing prior odds. PMID:21707977

2011-01-01

115

Chiral-odd fragmentation functions in single pion inclusive electroproduction  

NASA Astrophysics Data System (ADS)

We consider a sub-leading twist chiral-odd pion fragmentation function and explore its contribution in single pion semi-inclusive electroproduction. We evaluate the single beam-spin azimuthal asymmetry ALU and the double spin asymmetry ALT in polarized electroproduction of pions from an unpolarized and transversely polarized nucleon, respectively. The beam asymmetry is expressed as the product of chiral-odd, and T-odd and even distribution and fragmentation functions. The double spin asymmetry contains information on the quark's transversity distribution. In a quark-diquark-spectator framework we estimate these asymmetries at 6 GeV, 12 GeV, and 27.5 GeV energies.

Gamberg, Leonard P.; Hwang, Dae Sung; Oganessyan, Karo A.

2004-04-01

116

Global phenomenological descriptions of nuclear odd-even mass staggering  

E-print Network

We examine the general nature of nuclear odd-even mass differences by employing neutron and proton mass relations that emphasize these effects. The most recent mass tables are used. The possibility of a neutron excess dependence of the staggering is examined in detail in separate regions defined by the main nuclear shells, and a clear change in this dependency is found at $Z=50$ for both neutrons and protons. A further separation into odd and even neutron (proton) number produces very accurate local descriptions of the mass differences for each type of nucleons. These odd-even effects are combined into a global phenomenological expression, ready to use in a binding energy formula. The results deviate from previous parametrizations, and in particular found to be significantly superior to a recent two term, $A^{-1}$ dependence.

Hove, D; Riisager, K

2014-01-01

117

Global phenomenological descriptions of nuclear odd-even mass staggering  

E-print Network

We examine the general nature of nuclear odd-even mass differences by employing neutron and proton mass relations that emphasize these effects. The most recent mass tables are used. The possibility of a neutron excess dependence of the staggering is examined in detail in separate regions defined by the main nuclear shells, and a clear change in this dependency is found at $Z=50$ for both neutrons and protons. A further separation into odd and even neutron (proton) number produces very accurate local descriptions of the mass differences for each type of nucleons. These odd-even effects are combined into a global phenomenological expression, ready to use in a binding energy formula. The results deviate from previous parametrizations, and in particular found to be significantly superior to a recent two term, $A^{-1}$ dependence.

D. Hove; A. S. Jensen; K. Riisager

2014-08-26

118

Enhancement of “CP-odd ” Higgs Boson Production in the Minimal Supersymmetric Standard Model with Explicit CP Violation  

E-print Network

We calculate the production cross section of the “CP-odd ” Higgs boson via gluon fusion in the minimal supersymmetric standard model with explicit CP violation in the stop sector. We show that there is a parameter region in which the cross section is enhanced by a factor of about 1000, as compared to the case without CP violation in the stop sector. In the parameter region where the “CP-odd ” Higgs boson can decay into a stop pair, the stop pair events will be the important signature of the enhanced “CP-odd ” Higgs boson. In the case where the “CP-odd ” Higgs boson cannot decay into any superparticles, the ?? and ?? decay channels could become important for discovering the “CP-odd ” Higgs boson. We also discuss the constraints from electric dipole moments of electron, neutron and mercury on the viable parameter space mentioned above. Low energy supersymmetry (SUSY) is one of the most promising candidates of physics beyond the Standard Model (SM). SUSY gives an elegant solution to the naturalness problem of the stability of the weak scale by canceling quadratically divergent radiative corrections. One of the most important predictions of the minimal supersymmetric standard model (MSSM) is the upper bound of the lightest Higgs boson mass. At tree level, the MSSM predicts the lightest Higgs boson mass to be less than the Z boson mass. However, after including loop corrections, the

Qing-hong Cao; Daisuke Nomura; Kazuhiro Tobe; C. -p. Yuan

2005-01-01

119

Configuration Mixing and Magnetic Moments of Odd Nuclei  

Microsoft Academic Search

The deviations of magnetic moments of odd nuclei from the Schmidt lines are calculated by taking into account the effect of departure from the single-particle model in nuclear states caused by configuration mixing. The calculation are based upon the simple peturbation theory and the values of the deviations are estimated by adopting the two-body interaction strengths and integrals which are

Akito Arima; Hisashi Horie

1954-01-01

120

ODD CYCLE TRANSVERSALS AND INDEPENDENT SETS IN FULLERENE GRAPHS  

E-print Network

ODD CYCLE TRANSVERSALS AND INDEPENDENT SETS IN FULLERENE GRAPHS LUERBIO FARIA, SULAMITA KLEIN, AND MATEJ STEHL´IK Abstract. A fullerene graph is a cubic bridgeless plane graph with all faces of size 5 and 6. We show that every fullerene graph on n vertices can be made bipartite by deleting at most 12n/5

Boyer, Edmond

121

Negatively Coupled Inductors for Odd-Phase Choppers  

NASA Technical Reports Server (NTRS)

Splitting windings of output inductors of negatively-coupled "boost" chopper extends applicability to odd number of phases -- including three phases. New version concatenates output inductors of each phase with those of neighboring phases achieving negative coupling effect that suppresses unwanted harmonics.

Jamieson, R. S.

1985-01-01

122

A Study of Odd- and Even-Number Cultures  

ERIC Educational Resources Information Center

Japanese prefer odd numbers, whereas Westerners emphasize even numbers, an observation that is clear from the distribution of number-related words in Japanese and English dictionaries. In this article, the author explains why these two cultures differ by surveying the history of numbers, including yin-yang thought from ancient China, ancient Greek…

Nishiyama, Yutaka

2006-01-01

123

Chiral-Odd Twist-3 Distribution Function $e(x)$  

E-print Network

We clarify the nonperturbative origin of the $\\delta$-function singularity at $x = 0$ in the chiral-odd twist-3 distribution function $e(x)$ of the nucleon. We also compare a theoretical prediction for $e(x)$ based on the chiral quark soliton model with the empirical information extracted from the CLAS semi-inclusive DIS measurement.

M. Wakamatsu; Y. Ohnishi

2004-11-16

124

Against the Odds: Disadvantaged Students Who Succeed in School  

ERIC Educational Resources Information Center

This report explores the factors and conditions that could help more students succeed at school despite challenging socio-economic backgrounds. It does this by studying resilient students and what sets them apart from their less successful peers. Understanding how educational systems can support disadvantaged students and help them "beat the odds

OECD Publishing (NJ1), 2011

2011-01-01

125

Correspondence SATELLITE AND SURFACE TEMPERATURE DATA AT ODDS?  

E-print Network

Correspondence SATELLITE AND SURFACE TEMPERATURE DATA AT ODDS? Reply to John R. Christy and Roy W temperature change are inconsistent with surface measurements and with climate model predictions of global for complementary temperature measurements, left the impression that surface and tropospheric temperature trends

Fridlind, Ann

126

Analogues of Riemann tensors for the odd metric on supermanifolds  

Microsoft Academic Search

Structure functions constitute the complete set of obstructions to integrability of a G-structure on a manifold. For a Riemannian manifold the structure function is the Riemann tensor. In this work, we compute structure functions for the odd analogue of the metric on supermanifolds and for several related structures. Structure functions take values in Spencer cohomology groups, which we describe by

E. Poletaeva

1993-01-01

127

Generation of even and odd nonlinear coherent states  

Microsoft Academic Search

We show that a class of even and odd nonlinear coherent states, defined as the eigenstates of the product of a nonlinear function of the number operator and the square of the boson annihilation operator, can be generated in the centre-of-mass motion of a trapped and bichromatically laser-driven ion. The nonclasscial properties of the states are studied.

S. Sivakumar; Indira Gandhi

2000-01-01

128

Executive Functioning in Children: A Comparison of Hospitalised ODD and ODD/ADHD Children and Normal Controls  

ERIC Educational Resources Information Center

Background: Deficits in executive functioning are supposed to have a predisposing influence on impulsive or aggressive behaviour. We tested the hypothesis that oppositional-defiant disorder (ODD) children with or without attention deficit hyperactivity disorder (ADHD) have problems in executive functioning. Method: Seventy-seven 7- to 12-year-old…

Van Goozen, Stephanie H. M.; Cohen-Kettenis, Peggy T.; Snoek, Heddeke; Matthys, Walter; Swaab-Barneveld, Hanna; Van Engeland, Herman

2004-01-01

129

Level density and ?-ray strength function in the odd-odd Np238 nucleus  

NASA Astrophysics Data System (ADS)

The level density and ?-ray strength function in the quasicontinuum of Np238 have been measured using the Oslo method. The level-density function follows closely the constant-temperature level-density formula and reaches 43×106 levels per MeV at Sn=5.488 MeV of excitation energy. The ?-ray strength function displays a two-humped resonance at low-energy as also seen in previous investigations of Th, Pa, and U isotopes. The structure is interpreted as the scissors resonance and has an average centroid of ?SR=2.26(5) MeV and a total strength of BSR=10.8(12)?N2, which is in excellent agreement with sum-rule estimates. The scissors resonance is shown to have an impact on the Np237(n ,?)238Np cross section.

Tornyi, T. G.; Guttormsen, M.; Eriksen, T. K.; Görgen, A.; Giacoppo, F.; Hagen, T. W.; Krasznahorkay, A.; Larsen, A. C.; Renstrøm, T.; Rose, S. J.; Siem, S.; Tveten, G. M.

2014-04-01

130

Level density and gamma-ray strength function in the odd-odd 238Np  

E-print Network

The level density and gamma-ray strength function in the quasi-continuum of 238Np has been measured using the Oslo method. The level density function follows closely the constant-temperature level density formula and reaches 43 million levels per MeV at Sn = 5.488 MeV of excitation energy. The gamma-ray strength function displays a two-humped resonance at low-energy as also seen in previous investigations of Th, Pa and U isotopes. The structure is interpreted as the scissors resonance and has an average centroid of wSR = 2.26(5) MeV and a total strength of BSR = 10.8(12)m2N, which is in excellent agreement with sum-rule estimates. The scissors resonance is shown to have an impact on the 237Np(n; g)238Np cross section.

Tamás Gábor Tornyi; Magne Guttormsen; Tomas Kvalheim Eriksen; Andreas Görgen; Francesca Giacoppo; Trine Wiborg Hagen; Attila Krasznahorkay; Ann-Cecilie Larsen; Therese Renstrøm; Sunniva Johanne Rose; Sunniva Siem; Gry Merete Tveten

2014-02-25

131

Interpreting spatial variation in ozone symptoms shown by cutleaf cone flower, Rudbeckia laciniata L.  

E-print Network

Interpreting spatial variation in ozone symptoms shown by cutleaf cone flower, Rudbeckia laciniata ``Capsule'': Within-population variation in ozone injury shown by coneflower (Rudbeckia laciniata) is shown coneflower (Rudbeckia laciniata L.), shows great variation in symptoms between and within populations

Neufeld, Howard S.

132

Odd-bit symmetric QASK. [quadrature amplitude shift keyed signals  

NASA Technical Reports Server (NTRS)

Multiple-amplitude and phase-shift-keyed (MAPSK) signal set selection is influenced by factors such as average and/or peak signal-to-noise ratio for a given error probability, dynamic range of signal amplitudes, simplicity of generation and detection, and number of bit errors per adjacent symbol error. This paper compares two possible quadrature-amplitude-shift-keyed (QASK) signal sets for the case where the number of bits per symbol is odd (for the even-bit case, the square array is the only viable QASK choice). The symmetric QASK version out-performs the rectangular QASK set at a very modest implementation penalty. This permits symmetric QASK to be considered in future odd-bit system studies.

Smith, J. G.

1974-01-01

133

Shape phase transitions in odd-A nuclei  

SciTech Connect

We investigate shape phase transitions in odd nuclei within the Interacting Boson Fermion Model. Special attention is given to the case of the transition from the vibrational behaviour to the stable axial deformation. The odd particle is assumed to be moving in the three single particle orbitals j = 1/2,3/2,5/2 with a boson-fermion Hamiltonian that leads to the occurrence of the SU{sup BF}(3) boson-fermion symmetry when the boson part approaches the SU(3) condition. Both energy spectra and electromagnetic transitions show characteristic patterns similar to those displayed by the even nuclei at the corresponding critical point. The role of the additional particle in characterizing the properties of the critical points in finite quantal systems is investigated by resorting to the formalism based on the intrinsic frame.

Alonso, C. E.; Arias, J. M. [Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Fisica Universidad de Sevilla, Apartado 1065, 41080 Sevilla (Spain); Fortunato, L.; Vitturi, A. [Dipartimento di Fisica Galileo Galilei and INFN, Via Marzolo 8, 35131 Padova (Italy)

2008-11-11

134

J/Psi dissociation in parity-odd bubbles  

E-print Network

We calculate the quarkonium dissociation rate in the P and CP-odd domains (bubbles) that were possibly created in heavy-ion collisions. In the presence of the magnetic field produced by the valence quarks of colliding ions, parity-odd domains generate electric field. Quarkonium dissociation is the result of quantum tunneling of quark or antiquark through the potential barrier in this electric field. The strength of the electric field in the quarkonium comoving frame depends on the quarkonium velocity with respect to the background magnetic field. We investigate momentum, electric field strength and azimuthal dependence of the dissociation rate. Azimuthal distribution of quarkonia surviving in the electromagnetic field is strongly anisotropic; the form of anisotropy depends on the relation between the electric and magnetic fields and quarkonium momentum. These features can be used to explore the properties of the electromagnetic field created in heavy ion collisions.

Kirill Tuchin

2011-05-26

135

Mesospheric Odd Nitrogen Enhancements During Relativistic Electron Precipitation Events  

NASA Technical Reports Server (NTRS)

The behavior of mesospheric odd nitrogen species during and following relativistic and diffuse auroral precipitation events is simulated, Below 75 km nitric oxide is enhanced in proportion to the ion pair production function associated with the electron precipitation and the length of the event. Nitrogen dioxide and nitric acid are also enhanced. At 65 km the percentage of odd nitrogen for N is 0.1%, HNO3 is 1.6%, NO2 is 15%, and NO is 83.3%. Between 75 and 85 km NO is depleted during particle events due to the faster destruction of NO by N relative to the production of NO by N reacting with O2. Recovery of NO depends on transport from the lower thermosphere, where NO is produced in abundant amounts during particle events.

Aikin, A. C.; Smith, H. J. P.

1999-01-01

136

Predator fitness increases with selectivity for odd prey.  

PubMed

The fundamental currency of normative models of animal decision making is Darwinian fitness. In foraging ecology, empirical studies typically assess foraging strategies by recording energy intake rates rather than realized reproductive performance. This study provides a rare empirical link, in a vertebrate predator-prey system, between a predator's foraging behavior and direct measures of its reproductive fitness. Goshawks Accipiter gentilis selectively kill rare color variants of their principal prey, the feral pigeon Columba livia, presumably because targeting odd-looking birds in large uniform flocks helps them overcome confusion effects and enhances attack success. Reproductive performance of individual hawks increases significantly with their selectivity for odd-colored pigeons, even after controlling for confounding age effects. Older hawks exhibit more pronounced dietary preferences, suggesting that hunting performance improves with experience. Intriguingly, although negative frequency-dependent predation by hawks exerts strong selection against rare pigeon phenotypes, pigeon color polymorphism is maintained through negative assortative mating. PMID:22503502

Rutz, Christian

2012-05-01

137

Relativistic Hartree calculations of odd-A nuclei  

Microsoft Academic Search

Ground-state properties of odd-A nuclei near closed shells are calculated using self-consistent, relativistic mean-field models of baryon-meson dynamics. Contributions from sigma, omega, and rho mesons and the photon are included. Comparisons are made between linear and nonlinear mean-field models, and with calculations including vacuum polarization in a local density approximation. Results are given for (intrinsic) binding energies, rms radii, magnetic

R. J. Furnstahl; C. E. Price

1989-01-01

138

Higher dimensional geometries related to fuzzy odd-dimensional spheres  

Microsoft Academic Search

We study SO(m) covariant matrix realizations of sumi = 1mXi2 = 1 for even m as candidate fuzzy odd spheres following \\\\cite{guram}. As for the fuzzy four sphere, these matrix algebras contain more degrees of freedom than the sphere itself and the full set of variables has a geometrical description in terms of a higher dimensional coset. The fuzzy S2k-1

Sanjaye Ramgoolam

2002-01-01

139

Transition strengths and new band structures in odd-odd {sup 78}Rb  

SciTech Connect

High-spin states in {sup 78}Rb were studied using the {sup 54}Fe({sup 28}Si,3{ital pn}) reaction at 120 MeV and the {sup 58}Ni({sup 23}Na,2{ital pn}) reaction at 65 and 70 MeV. Prompt and delayed {gamma}-{gamma} coincidences were measured using the Pitt-FSU detector array. Results from these experiments have led to new levels partly grouped into new bands, new spin-parity assignments, and a rearrangement of the low-lying portion of the level scheme. States were observed up to (19{sup +}) and (15{sup {minus}}) in the lowest energy positive- and negative-parity bands. Spin assignments were based on both directional correlation of oriented nuclei ratios and angular distributions. For some low-lying levels parity assignments were supported by a measurement of the linear polarizations of {gamma} rays. Lifetimes were determined using the Doppler-shift attenuation method and direct timing. A reversal of signature splitting was observed in the yrast band at the 10{sup +} state. Large alternations were seen in the {ital B}({ital M}1) strengths in the yrast band, while the {ital B}({ital E}2) values in the two most strongly populated bands show a considerable collective enhancement. {copyright} {ital 1996 The American Physical Society.}

Kaye, R.A.; Doering, J.; Holcomb, J.W.; Johns, G.D.; Johnson, T.D.; Riley, M.A.; Sylvan, G.N.; Womble, P.C.; Wood, V.A.; Tabor, S.L. [Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)] [Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States); Saladin, J.X. [Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)] [Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)

1996-09-01

140

The distribution of odd nitrogen in the lower stratosphere and possible perturbations caused by stratospheric air transport  

NASA Technical Reports Server (NTRS)

In the lower stratosphere a significant production of odd nitrogen results from the reaction N2O + O(D-1) yields 2NO. Since the transport is relatively slow, odd nitrogen builds up with a maximum mixing ratio of 2 x 10 to the minus 8th power at 30 Km. Profiles of odd nitrogen, for different latitudes, winter and summer, are computed from one-dimensional transport models. Variations with latitude are small. Horizontal transport is therefore not believed to alter our results significantly. In order to evaluate the effect of odd nitrogen upon the ozone layer, NO(x) profiles are calculated. OH is here a key component, since it converts NO2 to HNO3. In the region where ozone is determined by chemistry rather than by transport (above 25 km), NO2 is found to be relatively abundant. The effect of stratospheric transport on the NO(x) distribution is shown to depend critically upon the height of emission. The effect increases by a factor of 5 or more for a change of flight level from 18 km to 23 km. This strong dependence should be duely considered when future stratospheric transport is discussed.

Isaksen, I. S. A.; Hesstvedt, E.

1973-01-01

141

Single-particle structures, high-spin isomers, and a strongly coupled band in odd-odd Sb120  

NASA Astrophysics Data System (ADS)

Excited states in Sb120 have been investigated using the Cd116(Li7,3n)Sb120 reaction at a beam energy of 34 MeV. A total of 15 new ? rays were added into the level scheme of Sb120. Most of the observed single-particle states can be interpreted in terms of weak coupling of the odd proton and odd neutron to an excited Sn118 core involving either vibrational states or broken neutron pairs. The previously known strongly coupled rotational band based on the ?g9/2-1??h11/2 configuration has been extended up to the (15-) state. The configuration-fixed constrained triaxial relativistic mean-field approaches and the particle rotor model are employed to discuss the high-spin isomers and strongly coupled rotational band, respectively.

Liu, L.; Wang, S. Y.; Chen, Z. Q.; Liu, C.; Qi, B.; Sun, D. P.; Wang, S.; An, Q.; Xu, C. J.; Zhang, P.; Li, Z. Q.; Niu, C. Y.; Wu, X. G.; Li, G. S.; He, C. Y.; Zheng, Y.; Li, C. B.; Yao, S. H.; Hu, S. P.; Li, H. W.; Liu, J. J.; Wang, J. L.

2014-07-01

142

T-odd distributions, breaking of long range correlations, and sudden entropy changes, in Drell-Yan high-energy processes  

E-print Network

T-odd parton distribution functions in a Drell-Yan process are here studied by examining the evolution of the internal statistical properties of the interacting hadrons. T-odd functions are shown to be a signature of the irreversible process in which a hadronic state characterized by long range correlation properties (hadronic phase) decays to produce a cloud of independent partons (partonic phase) because of initial/final state interactions. The relevant considered variable is the rate of increase of the entropy of the hadronic system. This quantity is shown to be roughly equal to the decay rate of the hadronic state. Conditions for getting a leading twist T-odd effect are established on this basis. Last, the relevant case of a large entropy increase associated with transverse-dominated initial/final state interactions is analyzed.

Andrea Bianconi

2006-11-27

143

Inelastic neutron scattering studies on the odd-membered antiferromagnetic wheel Cr8Ni  

NASA Astrophysics Data System (ADS)

[(iC3H7)2NH2][Cr8NiF9(O2CCMe)18], or Cr8Ni, is a prominent example of an odd-membered antiferromagnetic “wheel.” A detailed characterization of the magnetic properties of Cr8Ni has been conducted. Inelastic neutron scattering (INS) is used to investigate the energy and momentum transfer dependence of the low-lying spin excitations, including excited states inaccessible by other experimental techniques. The richness of the INS data, in conjunction with microscopic spin Hamiltonian simulations, enables an accurate characterization of the magnetic properties of Cr8Ni. Nearest-neighbor exchange constants of JCrCr = 1.31 meV and JCrNi = 3.22 meV are determined, and clear evidence of axial single-ion anisotropy is found. The parameters determined by INS are shown to fit magnetic susceptibility. The spectroscopic identification of several successive S=1 excited total spin states and lowest spin band excitations show that the rotational band picture, valid for bipartite AFM wheels, breaks down for this odd-numbered wheel. The exchange constants determined here differ from previous efforts based on bulk measurements, and possible reasons are discussed. The large JCrNi/JCrCr ratio in Cr8Ni puts this wheel into a regime with strong quantum fluctuations in which the ground state can be described with a valence bond solid state picture.

Baker, Michael L.; Waldmann, Oliver; Piligkos, Stergios; Bircher, Roland; Cador, Olivier; Carretta, Stefano; Collison, David; Fernandez-Alonso, Felix; McInnes, Eric J. L.; Mutka, Hannu; Podlesnyak, Andrew; Tuna, Floriana; Ochsenbein, Stefan; Sessoli, Roberta; Sieber, Andreas; Timco, Grigore A.; Weihe, Høgni; Güdel, Hans U.; Winpenny, Richard E. P.

2012-08-01

144

Semiparametric Efficient Estimation for a Class of Generalized Proportional Odds Cure Models.  

PubMed

We present a mixture cure model with the survival time of the "uncured" group coming from a class of linear transformation models, which is an extension of the proportional odds model. This class of model, first proposed by Dabrowska and Doksum (1988), which we term "generalized proportional odds model," is well suited for the mixture cure model setting due to a clear separation between long-term and short-term effects. A standard expectation-maximization algorithm can be employed to locate the nonparametric maximum likelihood estimators, which are shown to be consistent and semiparametric efficient. However, there are difficulties in the M-step due to the nonparametric component. We overcome these difficulties by proposing two different algorithms. The first is to employ an majorize-minimize (MM) algorithm in the M-step instead of the usual Newton-Raphson method, and the other is based on an alternative form to express the model as a proportional hazards frailty model. The two new algorithms are compared in a simulation study with an existing estimating equation approach by Lu and Ying (2004). The MM algorithm provides both computational stability and efficiency. A case study of leukemia data is conducted to illustrate the proposed procedures. PMID:22865944

Mao, Meng; Wang, Jane-Ling

2010-01-01

145

Controlled biosynthesis of odd-chain fuels and chemicals via engineered modular metabolic pathways.  

PubMed

Microbial systems are being increasingly developed as production hosts for a wide variety of chemical compounds. Broader adoption of microbial synthesis is hampered by a limited number of high-yielding natural pathways for molecules with the desired physical properties, as well as the difficulty in functionally assembling complex biosynthetic pathways in heterologous hosts. Here, we address both of these challenges by reporting the adaptation of the butanol biosynthetic pathway for the synthesis of odd-chain molecules and the development of a complementary modular toolkit to facilitate pathway construction, characterization, and optimization in engineered Escherichia coli. The modular feature of our pathway enables multientry and multiexit biosynthesis of various odd-chain compounds at high efficiency. By varying combinations of the pathway and toolkit enzymes, we demonstrate controlled production of propionate, trans-2-pentenoate, valerate, and pentanol, compounds with applications that include biofuels, antibiotics, biopolymers, and aroma chemicals. Importantly, and in contrast to a previously used method to identify limitations in heterologous amorphadiene production, our bypass strategy was effective even without the presence of freely membrane-diffusible substrates. This approach should prove useful for optimization of other pathways that use CoA-derivatized intermediates, including fatty acid ?-oxidation and the mevalonate pathway for isoprenoid synthesis. PMID:23071297

Tseng, Hsien-Chung; Prather, Kristala L J

2012-10-30

146

Controlled biosynthesis of odd-chain fuels and chemicals via engineered modular metabolic pathways  

PubMed Central

Microbial systems are being increasingly developed as production hosts for a wide variety of chemical compounds. Broader adoption of microbial synthesis is hampered by a limited number of high-yielding natural pathways for molecules with the desired physical properties, as well as the difficulty in functionally assembling complex biosynthetic pathways in heterologous hosts. Here, we address both of these challenges by reporting the adaptation of the butanol biosynthetic pathway for the synthesis of odd-chain molecules and the development of a complementary modular toolkit to facilitate pathway construction, characterization, and optimization in engineered Escherichia coli. The modular feature of our pathway enables multientry and multiexit biosynthesis of various odd-chain compounds at high efficiency. By varying combinations of the pathway and toolkit enzymes, we demonstrate controlled production of propionate, trans-2-pentenoate, valerate, and pentanol, compounds with applications that include biofuels, antibiotics, biopolymers, and aroma chemicals. Importantly, and in contrast to a previously used method to identify limitations in heterologous amorphadiene production, our bypass strategy was effective even without the presence of freely membrane-diffusible substrates. This approach should prove useful for optimization of other pathways that use CoA-derivatized intermediates, including fatty acid ?-oxidation and the mevalonate pathway for isoprenoid synthesis. PMID:23071297

Tseng, Hsien-Chung; Prather, Kristala L. J.

2012-01-01

147

Multi-quasiparticle structures up to spin {approx}44({h_bar}/2{pi}) in the odd-odd nucleus {sup 168}Ta  

SciTech Connect

High-spin states in the odd-odd nucleus {sup 168}Ta have been populated in the {sup 120}Sn({sup 51}V,3n) reaction. Two multi-quasiparticle structures have been extended significantly from spin {approx}20({h_bar}/2{pi}) to above 40({h_bar}/2{pi}). As a result, the first rotational alignment has been fully delineated and a second band crossing has been observed for the first time in this nucleus. Configurations for these strongly coupled rotational bands are proposed based on signature splitting, B(M1)/B(E2) ratio information, and observed rotation-alignment behavior. Properties of the observed bands in {sup 168}Ta are compared to related structures in the neighboring odd-Z, odd-N, and odd-odd nuclei and are discussed within the framework of the cranked shell model.

Wang, X.; Riley, M. A.; Aguilar, A.; Teal, C. [Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States); Hartley, D. J.; Seyfried, E. P.; Vanhoy, J. R. [Department of Physics, United States Naval Academy, Annapolis, Maryland 21402 (United States); Riedinger, L. L.; Darby, I. [Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States); Carpenter, M. P.; Janssens, R. V. F.; Lauritsen, T.; McCutchan, E. A.; Zhu, S. [Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Chiara, C. J.; Kondev, F. G. [Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Chowdhury, P.; Lakshmi, S.; Tandel, S. K.; Tandel, U. S. [Department of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854 (United States)

2010-09-15

148

Point Estimation: Odds Ratios, Hazard Ratios, Risk Differences, Precision  

NSDL National Science Digital Library

This site provides a PowerPoint presentation, created by Dr. Elizabeth Garrett-Mayer of Johns Hopkins University, of a lesson and examples of point estimation, odds ratios, hazard ratios, risk differences and precision. The presentations is quite thorough. The author attempts to define, provide examples of, and then show the application of almost every concept. The presentation follows a easily followed and logical order. Mathematical formulas are intertwined within the slides. If further research is necessary, the author has provided a list of references and cites them during the presentation.

Garrett-Mayer, Elizabeth

2009-02-11

149

A-SSE Sum of Even and Odd  

NSDL National Science Digital Library

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: A function $f$ defined for $âa < x < a$ is even if $f(-x) = f(x)$ and is odd if $f(-x) = -f(x)$ when $âa < x < a$. In this task we assume $f$ is define...

150

QCD evolution of naive-time-reversal-odd fragmentation functions  

SciTech Connect

We study QCD evolution equations of the first transverse-momentum moment of the naive-time-reversal-odd fragmentation functions--the Collins function and the polarizing fragmentation function. We find for the Collins function case that the evolution kernel has a diagonal piece the same as that for the transversity fragmentation function, while for the polarizing fragmentation function case this piece is the same as that for the unpolarized fragmentation function. Our results might have important implications in the current global analysis of spin asymmetries.

Kang Zhongbo [RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973 (United States)

2011-02-01

151

QCD evolution of naive-time-reversal-odd fragmentation functions  

SciTech Connect

We study QCD evolution equations of the first transverse-momentum moment of the naive-time-reversal-odd fragmentation functions - the Collins function and the polarizing fragmentation function. We find for the Collins function case that the evolution kernel has a diagonal piece the same as that for the transversity fragmentation function, while for the polarizing fragmentation function case this piece is the same as that for the unpolarized fragmentation function. Our results might have important implications in the current global analysis of spin asymmetries.

Kang, Z.B.

2011-02-17

152

QCD evolution of naive-time-reversal-odd fragmentation functions  

E-print Network

We study QCD evolution equations of the first transverse-momentum-moment of the naive-time-reversal-odd fragmentation functions - the Collins function and the polarizing fragmentation function. We find for the Collins function case that the evolution kernel has a diagonal piece same as that for the transversity fragmentation function, while for the polarizing fragmentation function case this piece is the same as that for the unpolarized fragmentation function. Our results might have important implications in the current global analysis of spin asymmetries.

Zhong-Bo Kang

2010-12-15

153

F-BF Identifying Even and Odd Functions  

NSDL National Science Digital Library

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Determine whether each of these functions is odd, even, or neither. Use algebraic methods on all of the functions. You may start out by looking at a gr...

154

Particle-Rotor Model Description of Doubly Odd Ta Isotopes  

E-print Network

The doubly odd Ta isotopes are studied within the framework of the particle-rotor model. The main aim of this study is to obtain information on the neutron-proton interaction in deformed nuclei, with particular attention focused on the role of the tensor force. To this end, both zero-range abd finite-range phenomenological interactions are considered. Comparison of the calculated results with experimental data provides evidence of the importance of the tensor-force effects. We have also performed calculations using a realistic two-body G matrix for the neutron proton interaction. Some preliminary results are presented here.

N. Itaco; L. Coraggio; A. Covello; A. Gargano

2000-12-21

155

Manifestation of the odd-frequency spin-triplet pairing state in diffusive ferromagnet/superconductor junctions  

NASA Astrophysics Data System (ADS)

Using the quasiclassical Green’s function formalism, we study the influence of the odd-frequency spin-triplet superconductivity on the local density of states (LDOS) in a diffusive ferromagnet (DF) attached to a superconductor. Various possible symmetry classes in a superconductor are considered which are consistent with the Pauli’s principle: even-frequency spin-singlet even-parity (ESE) state, even-frequency spin-triplet odd-parity (ETO) state, odd-frequency spin-triplet even-parity (OTE) state, and odd-frequency spin-singlet odd-parity (OSO) state. For each of these states, the pairing state in the DF is studied. Particular attention is paid to the study of spin-singlet s -wave and spin-triplet p -wave superconductors as the examples of ESE and ETO superconductors. For the spin-singlet case the magnitude of the OTE component of the pair amplitude is enhanced with the increase of the exchange field in the DF. When the OTE component is dominant at low energy, the resulting LDOS in the DF has a zero-energy peak (ZEP). On the other hand, in DF/spin-triplet p -wave superconductor junctions the LDOS has a ZEP in the absence of the exchange field, where only the OTE pairing state exists. With the increase of the exchange field, the ESE component of the pair amplitude induced in the DF is enhanced. Then, the resulting LDOS has a ZEP splitting. We demonstrate that the appearance of the dominant OTE component of the pair amplitude is the physical reason for the emergence of the ZEP of the LDOS.

Yokoyama, T.; Tanaka, Y.; Golubov, A. A.

2007-04-01

156

Increasing The Odds Of Hit Iidentification By Screening Against Receptor Homologs  

E-print Network

Increasing the odds of hit identification in screening is of significance for drug discovery. The odds for finding a hit are closely related either to the diversity of libraries or to the availability of focused libraries. ...

Chen, Yuzong

157

The parallel development of ODD and CD symptoms from early childhood to adolescence  

Microsoft Academic Search

This study examined the developmental relations between symptoms of oppositional defiant disorder (ODD) and conduct disorder\\u000a (CD) from early childhood to adolescence. Specifically we tested, according to parent-reported problems, whether symptoms\\u000a of ODD precede the development of CD symptoms, whether ODD and CD symptoms are reciprocally associated across time, or whether\\u000a ODD and CD symptoms develop parallel to each other

Sofia Diamantopoulou; Frank C. Verhulst; Jan van der Ende

2011-01-01

158

Change of shell structure and magnetic moments of odd-N deformed nuclei towards neutron drip line  

E-print Network

Examples of the change of neutron shell-structure in both weakly-bound and resonant neutron one-particle levels in nuclei towards the neutron drip line are exhibited. It is shown that the shell-structure change due to the weak binding may lead to the deformation of those nuclei with the neutron numbers $N \\approx$ 8, 20, 28 and 40, which are known to be magic numbers in stable nuclei. Nuclei in the "island of inversion" are most easily and in a simple manner understood in terms of deformation. As an example of spectroscopic properties other than single-particle energies, magnetic moments of some weakly-bound possibly deformed odd-N nuclei with neutron numbers close to those traditional magic numbers are given, which are calculated using the wave function of the last odd particle in deformed Woods-Saxon potentials.

Ikuko Hamamoto

2010-03-04

159

Change of shell structure and magnetic moments of odd-N deformed nuclei towards neutron drip line  

E-print Network

Examples of the change of neutron shell-structure in both weakly-bound and resonant neutron one-particle levels in nuclei towards the neutron drip line are exhibited. It is shown that the shell-structure change due to the weak binding may lead to the deformation of those nuclei with the neutron numbers $N \\approx$ 8, 20, 28 and 40, which are known to be magic numbers in stable nuclei. Nuclei in the "island of inversion" are most easily and in a simple manner understood in terms of deformation. As an example of spectroscopic properties other than single-particle energies, magnetic moments of some weakly-bound possibly deformed odd-N nuclei with neutron numbers close to those traditional magic numbers are given, which are calculated using the wave function of the last odd particle in deformed Woods-Saxon potentials.

Hamamoto, Ikuko

2010-01-01

160

Non-yrast spectra of odd-A nuclei in a model of coherent quadrupole-octupole motion  

E-print Network

The model of coherent quadrupole and octupole motion (CQOM) is applied to describe non-yrast split parity-doublet spectra in odd-mass nuclei. The yrast levels are described as low-energy rotation-vibration modes coupled to the ground single-particle (s.p.) state, while the non-yrast parity-doublet structures are obtained as higher-energy rotation-vibration modes coupled to excited s.p. states. It is shown that the extended model scheme describes both the yrast and non-yrast quasi parity-doublet spectra and the related B(E1) and B(E2) transition rates in different regions of heavy odd-A nuclei. The involvement of the reflection-asymmetric deformed shell model to describe the single-particle motion and the Coriolis interaction on a deeper level is discussed.

N. Minkov; S. Drenska; K. Drumev; M. Strecker; H. Lenske; W. Scheid

2013-12-28

161

Rare decay $?^{0}\\to e^+ e^-$ constraints on the light CP-odd Higgs in NMSSM  

E-print Network

We constrain the light CP-odd Higgs $A_{1}^{0}$ in NMSSM via the rare decay $\\pi^{0}\\to e^{+}e^{-}$. It is shown that the possible $3\\sigma$ discrepancy between theoretical predictions and the recent KTeV measurement of ${\\cal B}({\\pi}^{0}\\to e^+ e^-)$ cannot be resolved when the constraints from $\\Upsilon\\to\\gamma A_1^0$, $a_{\\mu}$ and $\\pi^{0}\\to \\gamma \\gamma$ are combined. Furthermore, the combined constraints also exclude the scenario involving $m_{A_1^0}=214.3$ MeV, which is invoked to explain the anomaly in the $\\Sigma^{+}\\to p \\mu^{+}\\mu^{-}$ decay found by the HyperCP Collaboration.

Qin Chang; Ya-Dong Yang

2008-08-21

162

Beyond Mean-Field Calculations for Odd-Mass Nuclei  

NASA Astrophysics Data System (ADS)

Beyond mean-field methods are very successful tools for the description of large-amplitude collective motion for even-even atomic nuclei. The state-of-the-art framework of these methods consists in a generator coordinate method based on angular-momentum and particle-number projected triaxially deformed Hartree-Fock-Bogoliubov (HFB) states. The extension of this scheme to odd-mass nuclei is a long-standing challenge. We present for the first time such an extension, where the generator coordinate space is built from self-consistently blocked one-quasiparticle HFB states. One of the key points for this success is that the same Skyrme interaction is used for the mean-field and the pairing channels, thus avoiding problems related to the violation of the Pauli principle. An application to Mg25 illustrates the power of our method, as agreement with experiment is obtained for the spectrum, electromagnetic moments, and transition strengths, for both positive and negative parity states and without the necessity for effective charges or effective moments. Although the effective interaction still requires improvement, our study opens the way to systematically describe odd-A nuclei throughout the nuclear chart.

Bally, B.; Avez, B.; Bender, M.; Heenen, P.-H.

2014-10-01

163

Survival instantaneous log-odds ratio from empirical functions.  

PubMed

The objective of this work is to introduce a new method called the Survivorship Instantaneous Log-odds Ratios (SILOR); to illustrate the creation of SILOR from empirical bivariate survival functions; to also derive standard errors of estimation; to compare results with those derived from logistic regression. Hip fracture, AGE and BMI from the Third National Health and Nutritional Examination Survey (NHANES III) were used to calculate empirical survival functions for the adverse health outcome (AHO) and non-AHO. A stable copula was used to create a parametric bivariate survival function, that was fitted to the empirical bivariate survival function. The bivariate survival function had SILOR contours which are not constant. The proposed method has better advantages than logistic regression by following two reasons. The comparison deals with (i) the shapes of the survival surfaces, S(X1, X2), and (ii) the isobols of the log-odds ratios. When using logistic regression the survival surface is either a hyper plane or at most a conic section. Our approach preserves the shape of the survival surface in two dimensions, and the isobols are observed in every detail instead of being overly smoothed by a regression with no more than a second degree polynomial. The present method is straightforward, and it captures all but random variability of the data. PMID:22550648

Jung, JungAh; Drane, J Wanzer

2007-01-01

164

Beyond mean-field calculations for odd-mass nuclei.  

PubMed

Beyond mean-field methods are very successful tools for the description of large-amplitude collective motion for even-even atomic nuclei. The state-of-the-art framework of these methods consists in a generator coordinate method based on angular-momentum and particle-number projected triaxially deformed Hartree-Fock-Bogoliubov (HFB) states. The extension of this scheme to odd-mass nuclei is a long-standing challenge. We present for the first time such an extension, where the generator coordinate space is built from self-consistently blocked one-quasiparticle HFB states. One of the key points for this success is that the same Skyrme interaction is used for the mean-field and the pairing channels, thus avoiding problems related to the violation of the Pauli principle. An application to ^{25}Mg illustrates the power of our method, as agreement with experiment is obtained for the spectrum, electromagnetic moments, and transition strengths, for both positive and negative parity states and without the necessity for effective charges or effective moments. Although the effective interaction still requires improvement, our study opens the way to systematically describe odd-A nuclei throughout the nuclear chart. PMID:25361253

Bally, B; Avez, B; Bender, M; Heenen, P-H

2014-10-17

165

Beyond Mean-Field Calculations for Odd-A Nuclei  

E-print Network

Beyond mean-field methods are very successful tools for the description of large-amplitude collective motion for even-even atomic nuclei. The state-of-the-art framework of these methods consists in a Generator Coordinate Method based on angular-momentum and particle-number projected triaxially deformed Hatree-Fock-Bogoliubov (HFB) states. The extension of this scheme to odd-mass nuclei is a long-standing challenge. We present for the first time such an extension, where the Generator Coordinate space is built from self-consistently blocked one-quasiparticle HFB states. One of the key points for this success is that the same Skyrme interaction is used for the mean-field and the pairing channels, thus avoiding problems related to the violation of the Pauli principle. An application to 25Mg illustrates the power of our method, as agreement with experiment is obtained for the spectrum, electromagnetic moments, and transition strengths, for both positive and negative parity states and without the necessity for effective charges or effective moments. Although the effective interaction still requires improvement, our study opens the way to systematically describe odd-A nuclei throughout the nuclear chart.

B. Bally; B. Avez; M. Bender; P. -H. Heenen

2014-06-23

166

Direct Discovery Prospects for the Light CP-odd Higgs Boson of NMSSM Ideal Higgs Scenarios  

E-print Network

Direct Discovery Prospects for the Light CP-odd Higgs Boson of NMSSM Ideal Higgs Scenarios Jack on the following papers with R. Dermisek: · New constraints on a light CP-odd Higgs boson and related NMSSM Ideal CP-odd Higgs boson at the Tevatron and LHC. Published in Phys.Rev.D81:055001,2010, arXiv:0911

California at Santa Cruz, University of

167

Using the logarithm of odds to define a vector space on probabilistic atlases  

E-print Network

for placing label maps into the space of LogOdds. First, we relate signed distance maps, a widely used maps of the same object into the LogOdds space. Third, we define a framework for non- convexUsing the logarithm of odds to define a vector space on probabilistic atlases Kilian M. Pohl a

Fisher III, John

168

38 CFR 3.370 - Pulmonary tuberculosis shown by X-ray in active service.  

Code of Federal Regulations, 2011 CFR

...Considerations Relative to Specific Diseases § 3.370 Pulmonary tuberculosis shown by X-ray...active service. (a) Active disease. X-ray evidence alone...direct service connection for pulmonary tuberculosis....

2011-07-01

169

38 CFR 3.370 - Pulmonary tuberculosis shown by X-ray in active service.  

Code of Federal Regulations, 2013 CFR

...Considerations Relative to Specific Diseases § 3.370 Pulmonary tuberculosis shown by X-ray...active service. (a) Active disease. X-ray evidence alone...direct service connection for pulmonary tuberculosis....

2013-07-01

170

38 CFR 3.370 - Pulmonary tuberculosis shown by X-ray in active service.  

Code of Federal Regulations, 2012 CFR

...Considerations Relative to Specific Diseases § 3.370 Pulmonary tuberculosis shown by X-ray...active service. (a) Active disease. X-ray evidence alone...direct service connection for pulmonary tuberculosis....

2012-07-01

171

38 CFR 3.370 - Pulmonary tuberculosis shown by X-ray in active service.  

Code of Federal Regulations, 2010 CFR

...Considerations Relative to Specific Diseases § 3.370 Pulmonary tuberculosis shown by X-ray...active service. (a) Active disease. X-ray evidence alone...direct service connection for pulmonary tuberculosis....

2010-07-01

172

16 CFR Figure 1 to Part 1633 - Test Assembly, Shown in Furniture Calorimeter (Configuration A)  

Code of Federal Regulations, 2010 CFR

...Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt.1633, Fig. 1 Figure 1 to Part 1633—Test Assembly, Shown in Furniture Calorimeter...

2010-01-01

173

16 CFR Figure 1 to Part 1633 - Test Assembly, Shown in Furniture Calorimeter (Configuration A)  

Code of Federal Regulations, 2011 CFR

...Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt.1633, Fig. 1 Figure 1 to Part 1633—Test Assembly, Shown in Furniture Calorimeter...

2011-01-01

174

16 CFR Figure 1 to Part 1633 - Test Assembly, Shown in Furniture Calorimeter (Configuration A)  

...Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt. 1633, Fig. 1 Figure 1 to Part 1633—Test Assembly, Shown in Furniture Calorimeter...

2014-01-01

175

16 CFR Figure 1 to Part 1633 - Test Assembly, Shown in Furniture Calorimeter (Configuration A)  

Code of Federal Regulations, 2012 CFR

...Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt.1633, Fig. 1 Figure 1 to Part 1633—Test Assembly, Shown in Furniture Calorimeter...

2012-01-01

176

16 CFR Figure 1 to Part 1633 - Test Assembly, Shown in Furniture Calorimeter (Configuration A)  

Code of Federal Regulations, 2013 CFR

...Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt. 1633, Fig. 1 Figure 1 to Part 1633—Test Assembly, Shown in Furniture Calorimeter...

2013-01-01

177

Odd-even effect in the potential energy of the self-assembled peptide amphiphiles  

NASA Astrophysics Data System (ADS)

We report on an example of odd-even effect in self-assembled peptide amphiphiles (PAs) forming a cylindrical nanofiber. Minimum energy of the nanofiber depends on whether there are odd or even number of layers and whether each layer has odd or even number of PAs. More specifically, minimum energy for a nanofiber built of odd number of layers is achieved if each layer has even number of PAs uniformly, and radially aligned with alkyl chains in the center. On the other hand if the number of layers is even, energy is minimized if each layer has an odd number of PAs.

Tekin, E. Deniz

2014-10-01

178

The Interplay Among Preschool Child and Family Factors and the Development of ODD Symptoms  

PubMed Central

Objective The present study examined (a) the interactions between early behavior, early parenting, and early family adversity in predicting later ODD symptoms, and (b) the reciprocal relations between parent functioning and ODD symptoms across the preschool years. Method Participants were 258 3-year-old children (138 boys and 120 girls) and their parents from diverse backgrounds who participated in a 4-year longitudinal study. Results Early child behavior, parenting, and family adversity did not significantly interact in the predicted direction. Reciprocal relations between ODD symptoms and parent functioning were observed for maternal and paternal depression, and maternal warmth. Paternal laxness at age 4 predicted ODD symptoms at age 5 and paternal laxness at age 5 predicted ODD symptoms at age 6, but child ODD did not significantly predict paternal laxness. Conclusion Results suggest that ODD symptoms may develop through a transactional process between parent and child functioning across the preschool years. PMID:22530755

Harvey, Elizabeth A.; Metcalfe, Lindsay A.

2012-01-01

179

Odd triplet pairing in clean superconductor/ferromagnet heterostructures.  

PubMed

We study triplet pairing correlations in clean ferromagnet (F)/superconductor (S) nanojunctions, via fully self-consistent solution of the Bogoliubov-de Gennes equations. We consider FSF trilayers, with S being an s-wave superconductor, and an arbitrary angle alpha between the magnetizations of the two F layers. We find that contrary to some previous expectations, triplet correlations, odd in time, are induced in both the S and F layers in the clean limit. We investigate their behavior as a function of time, position, and alpha. The triplet amplitudes are largest at times on the order of the inverse Debye frequency, and at that time scale they are long-ranged in both S and F. The zero temperature condensation energy is found to be lowest when the magnetizations are antiparallel. PMID:17930543

Halterman, Klaus; Barsic, Paul H; Valls, Oriol T

2007-09-21

180

Ground State Magnetic Properties of Odd Neutron DY Isotopes  

NASA Astrophysics Data System (ADS)

Using the quasiparticle phonon nuclear model (QPNM) and taking into account the spin-spin interaction, the effects of the spin polarization on spin gyromagnetic factors (gs) as well as the intrinsic magnetic moments (gK) of the deformed odd neutron 155-165Dy isotopes were studied. The calculated values of gs and gK are in fair agreement with the experiment as well as with other microscopic calculations. Our calculations indicated that because of the core polarization, the gs factors of the nucleons in the nucleus reduce noticeably from its free nucleon value and the spin-spin interactions play an important role in the explanation of the quenching of the gs factors. A very good reproduction of the phenomenological quenching of gs factor from its free values (gs eff = 0.6-0.7gs free) is obtained for 155-165Dy.

Yakut, Hakan; Tabar, Emre; Kuliev, Ali Akbar; Zenginerler, Zemine; Kaplan, Pinar

2013-10-01

181

Colour Modification of Effective T-odd Distributions  

E-print Network

We show that soft-gluon twist-3 contributions to single-spin asymmetries (SSA) in hard processes may be presented in the form of effective T-odd Sivers distributions, whose signs and scales are modified by process-dependent colour factors. We thus prove that the Sivers mechanism may be applied at large transverse momenta. We stress that twist-3 SSA in semi-inclusive deeply inelastic scattering and Drell-Yan processes are not suppressed by a virtual-photon momentum transfer and thus correspond to twist two at the hadronic level. More rigorously, the transverse-momentum weighted averages of the Sivers function correspond to increasing twists (3, 5, 7, ...) while the full kT-dependent Sivers function (just as other transverse-momentum dependent distribution and fragmentation functions) corresponds to a resummed infinite tower of higher twists.

Ratcliffe, P G; Ratcliffe, Philip G.; Teryaev, Oleg V.

2007-01-01

182

Effect of odd hydrogen on ozone depletion by chlorine reactions  

NASA Technical Reports Server (NTRS)

The present paper discusses how the shape of the ozone layer changes under the influence of injected ClX for several choices of two key HOx reaction rates. The two HOx reactions are: OH + HO2 yields H2O + O2 and O + HO2 yields OH + O2. Results of calculations are presented which show that the two reaction rates determine the stratospheric concentrations of OH and HO2, and that these concentrations regulate the amount by which the stratospheric ozone column can be reduced due to injections of odd chlorine. It is concluded that the amount of ozone reduction by a given mixing ratio of ClX will remain very uncertain until the significance of several possible feedback effects involving HOx in a chlorine-polluted atmosphere are determined and measurements of the reaction rates and HOx concentrations are made at the relevant temperatures.

Donahue, T. M.; Cicerone, R. J.; Liu, S. C.; Chameides, W. L.

1976-01-01

183

Convection in Arc Weld Pools Electromagnetic and surface tension forces are shown to  

E-print Network

Convection in Arc Weld Pools Electromagnetic and surface tension forces are shown to dominate flow behavior/ in some cases producing double circulation loops in the weld pool BY G. M. OREP.ER, T. W. EAGAR and temperature distributions in sta- tionary arc weld pools driven by buoyan- cy, electromagnetic and surface

Eagar, Thomas W.

184

CME MEMBERS 2011-2012 (Term expirations for voting members shown in parentheses)  

E-print Network

CME MEMBERS 2011-2012 (Term expirations for voting members shown in parentheses) Voting Members Council Chairs Voting Members Dr. Amy Wilson-Delfosse Chair, Basic Science Curriculum Council Pharmacology for the University Program E306 School of Medicine 4924 (216) 368-5189, drw4@case.edu Dr. James B. Young Chair, CCLCM

Rollins, Andrew M.

185

1 Introduction Research has shown that the visual and vestibular systems play particularly important  

E-print Network

1 Introduction Research has shown that the visual and vestibular systems play particularly and Lee 1973). However, the vestibular system of the inner ear can only detect accelerations of the head to henceforth as `visual ^ vestibular conflict' theory (eg Zacharias and Young 1981).(1) According

Allison, Robert

186

ELL transplantation has shown great promise in the treatment of many neurological disorders including  

E-print Network

for an autologous model of cell therapy. In most animal studies, however, stem cells have been directly injected of Medicine, Philadelphia, Pennsylvania Object. Stem cell therapy has been shown to have considerable therapeutic potential for spinal cord injuries (SCIs); however, most experiments in animals have been

Fischer, Itzhak

187

32. DETAIL OF WALL SHOWN IN SD231. BEHIND WALL FRAMING ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

32. DETAIL OF WALL SHOWN IN SD-2-31. BEHIND WALL FRAMING IS SAMPLING ROOM WITH WOOD SAMPLING ELEVATOR. CRUSHED OXIDIZED ORE BIN ON LEFT (SOUTH). - Bald Mountain Gold Mill, Nevada Gulch at head of False Bottom Creek, Lead, Lawrence County, SD

188

IMPACT OF ROUNDUP ON THE MARINE MICROBIAL COMMUNITY, AS SHOWN BY AN IN SITU MICROCOSM EXPERIMENT  

E-print Network

1 IMPACT OF ROUNDUP ON THE MARINE MICROBIAL COMMUNITY, AS SHOWN BY AN IN SITU MICROCOSM EXPERIMENT The effects of the herbicide Roundup® (glyphosate) on natural marine microbial communities were assessed fingerprints for Roundup at 1 µg L-1 (ANOSIM, p = 0.055; R=0.53), and 10 µg L-1 (ANOSIM, p = 0.086; R=0

Paris-Sud XI, Université de

189

Finally, an intriguing feature of the present fibers is shown in scanning electron  

E-print Network

Finally, an intriguing feature of the present fibers is shown in scanning electron microscopy pictures of the fiber cross sec- tion. Two different domains can be distin- guished: a well-defined core from the raw material, are ran- domly distributed in the initial ribbons (Fig. 4A). Hence

Wyss, Max

190

27 CFR 70.507 - Data to be shown in claim.  

Code of Federal Regulations, 2010 CFR

...Application of Section 6423, Internal Revenue Code of 1954, as Amended, to Refund or Credit of Tax on Distilled Spirits, Wines, and Beer Claim Procedure § 70.507 Data to be shown in claim. Claims to which this subpart is applicable, in addition to...

2010-04-01

191

RWD domain: a recurring module in kinetochore architecture shown by a Ctf19Mcm21 complex  

E-print Network

RWD domain: a recurring module in kinetochore architecture shown by a Ctf19­Mcm21 complex structureBiologicalChemistryandMolecularPharmacology,and2HowardHughesMedicalInstitute,HarvardMedicalSchool, Boston, Massachusetts, USA The proteins Ctf19 determined the crystal structure of a conserved COMA subcomplex--the Ctf19­Mcm21 heterodimer--from Kluyvero

Harrison, Stephen C.

192

26 CFR 20.6151-1 - Time and place for paying tax shown on the return.  

The tax shown on the estate tax return is to be paid at the time and place fixed for filing the return (determined without regard to any extension of time for filing the return). For provisions relating to the time and place for filing the return, see §§ 20.6075-1 and...

2014-04-01

193

26 CFR 55.6151-1 - Time and place for paying of tax shown on returns.  

Code of Federal Regulations, 2013 CFR

The tax shown on any return which is imposed by Chapter 44 shall, without notice or assessment and demand, be paid to the internal revenue officer with whom the return is filed at the time and place for filing such return (determined without regard to any extension of time for filing the...

2013-04-01

194

We have previously shown that during compensatory growth in bovine, muscle  

E-print Network

calf serum in absence or presence of insulin (5, 10 and 50 pU/mL) or T3 (1, 3 and 5 ng/mL). On day 5We have previously shown that during compensatory growth in bovine, muscle fibres are rapidly, the serum concentration of the medium was lowered to 2 %. Cell prolifer- ation was assessed by scoring

Paris-Sud XI, Université de

195

The Helios Prototype flying wing is shown moments after takeoff, beginning its first test flight on  

NASA Technical Reports Server (NTRS)

The solar-electric Helios Prototype flying wing is shown moments after takeoff, beginning its first test flight on solar power from the U.S. Navy's Pacific Missile Range Facility on Kauai, Hawaii, July 14, 2001. The 18-hour flight was a functional checkout of the aircraft's systems and performance in preparation for an attempt to reach sustained flight at 100,000 feet altitude later this summer.

2001-01-01

196

Odd and even Kondo effects from emergent localization in quantum point contacts.  

PubMed

A quantum point contact (QPC) is a basic nanometre-scale electronic device: a short and narrow transport channel between two electron reservoirs. In clean channels, electron transport is ballistic and the conductance is then quantized as a function of channel width with plateaux at integer multiples of 2e(2)/h (where e is the electron charge and h is Planck's constant). This can be understood in a picture where the electron states are propagating waves, without the need to account for electron-electron interactions. Quantized conductance could thus be the signature of ultimate control over nanoscale electron transport. However, even studies with the cleanest QPCs generically show significant anomalies in the quantized conductance traces, and there is consensus that these result from electron many-body effects. Despite extensive experimental and theoretical studies, understanding these anomalies is an open problem. Here we report that the many-body effects have their origin in one or more spontaneously localized states that emerge from Friedel oscillations in the electron charge density within the QPC channel. These localized states will have electron spins associated with them, and the Kondo effect--related to electron transport through such localized electron spins--contributes to the formation of the many-body state. We present evidence for such localization, with Kondo effects of odd or even character, directly reflecting the parity of the number of localized states; the evidence is obtained from experiments with length-tunable QPCs that show a periodic modulation of the many-body properties with Kondo signatures that alternate between odd and even Kondo effects. Our results are of importance for assessing the role of QPCs in more complex hybrid devices and for proposals for spintronic and quantum information applications. In addition, our results show that tunable QPCs offer a versatile platform for investigating many-body effects in nanoscale systems, with the ability to probe such physics at the level of a single site. PMID:23995683

Iqbal, M J; Levy, Roi; Koop, E J; Dekker, J B; de Jong, J P; van der Velde, J H M; Reuter, D; Wieck, A D; Aguado, Ramón; Meir, Yigal; van der Wal, C H

2013-09-01

197

Succinate esters: odd-even effects in melting points.  

PubMed

Dialkyl succinates show a pattern of alternating behavior in their melting points, as the number of C atoms in the alkane side chain increases, unlike in the dialkyl oxalates [Joseph et al. (2011). Acta Cryst. B67, 525-534]. Dialkyl succinates with odd numbers of C atoms in the alkyl side chain show higher melting points than the immediately adjacent analogues with even numbers. The crystal structures and their molecular packing have been analyzed for a series of dialkyl succinates with 1-4 C atoms in the alkyl side chain. The energy difference (?E) between the optimized and observed molecular conformations, density, Kitaigorodskii packing index (KPI) and C-H...O interactions are considered to rationalize this behavior. In contrast to the dialkyl oxalates where a larger number of moderately strong C-H...O interactions were characteristic of oxalates with elevated melting points, here the molecular packing and the density play a major role in raising the melting point. On moving from oxalate to succinate esters the introduction of the C2 spacer adds two activated H atoms to the asymmetric unit, resulting in the formation of stronger C-H...O hydrogen bonds in all succinates. As a result the crystallinity of long-chain alkyl substituted esters improves enormously in the presence of hydrogen bonds from activated donors. PMID:25274517

Joseph, Sumy; Sathishkumar, Ranganathan

2014-10-01

198

Increasing the Odds: Applying Emergentist Theory in Language Intervention  

PubMed Central

Purpose This review introduces a leading theory of language development, emergentism, the view that language ability is the product of interactions between the language environment and the learning capabilities of the child. It suggests ways in which emergentism provides a theoretical rationale for interventions designed to address developmental language delays in young children. Method A review of selected literature on emergentist theory and research is presented, with a focus on the acquisition of early morphology and syntax. A significant method for developing and testing emergentist theory, connectionist modeling, is described. Key themes from both connectionist and behavioral studies are summarized and applied with specific examples to language intervention techniques. A case study is presented to integrate elements of emergentism with language intervention. Conclusions Evaluating the theoretical foundation for language interventions is an important step in evidence-based practice. This article introduces three themes in the emergentist literature that have implications for language intervention: sufficiency of language input, active engagement of the child with the input, and the introduction of factors that increase the odds for correctly mapping language form to meaning. Evidence supporting the importance of these factors in effective language intervention is presented, along with limitations in that evidence. PMID:21616988

Poll, Gerard H.

2011-01-01

199

Odd-electron molecular theory of graphene hydrogenation.  

PubMed

This paper highlights the molecular essence of graphene and presents its hydrogenation from the viewpoint of the odd-electron molecular theory. This chemical transformation was performed computationally, using a particular algorithm, through the stepwise addition of either hydrogen molecules or hydrogen atoms to a pristine graphene molecule. The graphene was considered to be a membrane, such that either both sides or just one side of the membrane was accessible to adsorbate, and the atoms on the perimeter of the membrane were either fixed (fixed membrane) or free to move (free-standing membrane). The algorithm explored the spatial distribution of the number of effectively unpaired electrons N (DA) over the carbon skeleton of the molecule. The highest ranked N (DA) values were considered to indicate the target atoms at each reaction step. The dependence of the hydrogenation itself and the final graphene hydrides on external factors such as whether the membrane was fixed, if both sides or only one side of the membrane were accessible to hydrogen, and whether the hydrogen was in the molecular or atomic state. Complete hydrogenation followed by the formation of a regular chairlike graphane structure (CH)(n) was only found to be possible for a fixed pristine graphene membrane for which the basal plane is accessible to hydrogen atoms from both sides. PMID:22395646

Sheka, Elena F; Popova, Nadezhda A

2012-08-01

200

Io Shown in Lambertian Equal Area Projection and in Approximately Natural Color  

NASA Technical Reports Server (NTRS)

Voyager 1 computer color mosaics, shown in approximately natural color and in Lambertian equal-area projections, show the Eastern (left) and Western (right) hemispheres of Io. This innermost of Jupiter's 4 major satellites is the most volcanically active object in the solar system. Io is 2263 mi (3640 km) in diameter, making it a little bigger than Earth's moon. Almost all the features visible here have volcanic origins, including several calderas and eruption plumes that were active at the time of the Voyager 1 encounter.

1986-01-01

201

At Odds Reconciling Experimental and Theoretical Results in High School Physics  

Microsoft Academic Search

For this experiment, students are divided into 2 groups and presented with a static equilibrium forcebalance problem to solve. One group works entirely experimentally and the other group theoretically, using Newton's laws. The groups present their seemingly dissimilar results and must reconcile them through discussion.

Joshua Gates

2009-01-01

202

At Odds: Reconciling Experimental and Theoretical Results in High School Physics  

ERIC Educational Resources Information Center

For this experiment, students are divided into 2 groups and presented with a static equilibrium force-balance problem to solve. One group works entirely experimentally and the other group theoretically, using Newton's laws. The groups present their seemingly dissimilar results and must reconcile them through discussion. (Contains 3 figures.)

Gates, Joshua

2009-01-01

203

Prosociality and negative emotionality mediate the association of serotonin transporter genotype with childhood ADHD and ODD.  

PubMed

Although there is evidence that the promoter polymorphism of the serotonin transporter (5-HTTLPR) gene is associated with attention-deficit/hyperactivity disorder (ADHD) and oppositional defiant disorder (ODD), the pathways underlying these associations are largely unknown. Given their theoretical and biological plausibility, we tested whether individual differences in key temperament dimensions (i.e., prosociality, negative emotionality, daring) constituted potential pathways from 5-HTTLPR to ADHD and ODD. Using a well-characterized sample of 194 six to nine-year-old children with and without ADHD, we utilized multiple mediation procedures with bootstrapping to evaluate prosociality, negative emotionality, and daring as independent mediators of 5-HTTLPR with separate parent and teacher ratings of ADHD and ODD. Controlling for ODD, prosociality and negative emotionality significantly mediated the association of 5-HTTLPR and parent-reported ADHD. Similarly, controlling for ADHD, prosociality and negative emotionality each uniquely mediated the association of 5-HTTLPR and parent-reported ODD. For teacher-reported ADHD, prosociality significantly mediated the association of 5-HTTLPR (controlling for ODD) whereas controlling for ODD, negative emotionality significantly mediated the prediction of teacher-reported ODD from 5-HTTLPR. Specifically, the number of 5-HTTLPR long alleles was inversely associated with prosociality and positively associated with negative emotionality; prosociality was inversely associated and negative emotionality was positively associated with ADHD and ODD. We consider the role of temperament in genetically sensitive designs as well as its potential value in the development and delivery of effective interventions. PMID:24116887

Brammer, Whitney A; Lee, Steve S

2013-01-01

204

Observation of Fermi Superallowed ?+ Decays in Heavy Odd-Odd, N = Z Nuclei: Evidence for 0+ Ground States in 78Y, 82Nb, and 86Tc  

NASA Astrophysics Data System (ADS)

The ?+-decay half-lives of the neutron-deficient, odd-odd, N = Z nuclei 74Rb, 78Y, 82Nb, and 86Tc have been measured following the fragmentation of a primary 92Mo beam at an energy of 60 MeV per nucleon. The half-lives were measured by correlating ?+ decays with the implantation of unambigously identified fragments. The deduced logft values are consistent with 0+-->0+ Fermi superallowed transitions, which together with the measured ?+ detection efficiencies suggest T = 1, I? = 0+ ground states for these odd-odd, N = Z nuclei. These data represent the heaviest N = Z systems for which Fermi superallowed decays have been established. The results suggest that these nuclei can extend the mass range used to test the conserved vector current hypothesis of the standard model.

Longour, C.; Garcés Narro, J.; Blank, B.; Lewitowicz, M.; Miehé, Ch.; Regan, P. H.; Applebe, D.; Axelsson, L.; Bruce, A. M.; Catford, W. N.; Chandler, C.; Clark, R. M.; Cullen, D. M.; Czajkowski, S.; Daugas, J. M.; Dessagne, Ph.; Fleury, A.; Frankland, L.; Gelletly, W.; Giovinazzo, J.; Greenhalgh, B.; Grzywacz, R.; Harder, M.; Jones, K. L.; Kelsall, N.; Kszczot, T.; Page, R. D.; Pearson, C. J.; Reed, A. T.; Sorlin, O.; Wadsworth, R.

1998-10-01

205

The development of hurricane Inez, 1966, as shown by satellite nighttime radiometric and daytime television coverage  

NASA Technical Reports Server (NTRS)

A complete documentation of Numbus 2 High Resolution infrared Radiometer data and ESSA-1 and 3 television photographs is presented for the life-time of Hurricane Inez, 1966. Ten computer produced radiation charts were analyzed in order to delineate the three dimensional cloud structure during the formative, mature and dissipating stages of this tropical cyclone. Time sections were drawn throughout the storm's life cycle to relate the warm core development and upper level outflow of the storm with their respective cloud canopies, as shown by the radiation data. Aerial reconnaissance weather reports, radar photographs and conventional weather analyses were used to complement the satellite data. A computer program was utilized to accept Nimbus 2 HRIR equivalent blackbody temperatures within historical maximum and minimum sea surface temperature limits over the tropical Atlantic Ocean.

Allison, L. J.

1972-01-01

206

The Peto odds ratio viewed as a new effect measure.  

PubMed

Meta-analysis has generally been accepted as a fundamental tool for combining effect estimates from several studies. For binary studies with rare events, the Peto odds ratio (POR) method has become the relative effect estimator of choice. However, the POR leads to biased estimates for the OR when treatment effects are large or the group size ratio is not balanced. The aim of this work is to derive the limit of the POR estimator for increasing sample size, to investigate whether the POR limit is equal to the true OR and, if this is not the case, in which situations the POR limit is sufficiently close to the OR. It was found that the derived limit of the expected POR is not equivalent to the OR, because it depends on the group size ratio. Thus, the POR represents a different effect measure. We investigated in which situations the POR is reasonably close to the OR and found that this depends only slightly on the baseline risk within the range (0.001; 0.1) yet substantially on the group size ratio and the effect size itself. We derived the maximum effect size of the POR for different group size ratios and tolerated amounts of bias, for which the POR method results in an acceptable estimator of the OR. We conclude that the limit of the expected POR can be regarded as a new effect measure, which can be used in the presented situations as a valid estimate of the true OR. Copyright © 2014 John Wiley & Sons, Ltd. PMID:25244540

Brockhaus, A Catharina; Bender, Ralf; Skipka, Guido

2014-12-10

207

Genetic signature of rice domestication shown by a variety of genes.  

PubMed

Cultivated rice was domesticated from common wild rice. However, little is known about genetic adaptation under domestication. We investigated the nucleotide variation of both cultivated rice and its wild progenitors at 22 R-gene and 10 non-R-gene loci. A significant regression was observed between wild rice and rice cultivars in their polymorphic levels, particularly in their nonsynonymous substitutions (theta ( a )). Our data also showed that a similar proportion (approximately 60%) of nucleotide variation in wild rice was retained in cultivated rice in both R-genes and non-R-genes. Interestingly, the slope always was >1 and the intercept always >0 in linear regressions when a cultivar's polymorphism was x-axis. The slope and intercept values can provide a basis by which to estimate the founder effect and the strength of artificial direct selection. A larger founder effect than previously reported and a strong direct-selection effect were shown in rice genes. In addition, two-directional selection was commonly found in differentiated genes between indica and japonica rice subspecies. This kind of selection may explain the mosaic origins of indica and japonica rice subspecies. Furthermore, in most R-genes, no significant differentiation between cultivated and wild rice was detected. We found evidence for genetic introgression from wild rice, which may have played an important role during the domestication of rice R-genes. PMID:19290563

Zhang, Yuanli; Wang, Jiao; Zhang, Xiaohui; Chen, Jian-Qun; Tian, Dacheng; Yang, Sihai

2009-04-01

208

Vesicular transport and apotransferrin in intestinal iron absorption, as shown in the Caco-2 cell model.  

PubMed

The potential roles of vesicular transport and apotransferrin (entering from the blood) in intestinal Fe absorption were investigated using Caco-2 cell monolayers with tight junctions in bicameral chambers as a model. As shown previously, addition of 39 microM apotransferrin (apoTf) to the basolateral fluid during absorption studies markedly stimulated overall transport of 1 microM (59)Fe from the apical to the basal chamber and stimulated its basolateral release from prelabeled cells, implicating endo- and exocytosis. Rates of transport more than doubled. Uptake was also stimulated, but only 20%. Specific inhibitors of aspects of vesicular trafficking were applied to determine their potential effects on uptake, retention, and basolateral (overall) transport of (59)Fe. Nocodazole and 5'-(4-fluorosulfonylbenzoyl)-adenosine each reduced uptake and basolateral transport up to 50%. Brefeldin A inhibited about 10%. Tyrphostin A8 (AG10) reduced uptake 35% but markedly stimulated basolateral efflux, particularly that dependent on apoTf. Cooling of cells to 4 degrees C (which causes depolymerization of microtubules and lowers energy availability) profoundly inhibited uptake and basolateral transfer of Fe (7- to 12-fold). Apical efflux (which was substantial) was not temperature affected. Our results support the involvement of apoTf cycling in intestinal Fe absorption and indicate that as much as half of the iron uses apoTf and non-apoTf-dependent vesicular pathways to cross the basolateral membrane and brush border of enterocytes. PMID:16179601

Moriya, Mizue; Linder, Maria C

2006-02-01

209

Logarithm Odds Maps for Shape Representation Kilian M. Pohl1,2, John Fisher2, Martha Shenton1, Robert W. McCarley1,  

E-print Network

Logarithm Odds Maps for Shape Representation Kilian M. Pohl1,2, John Fisher2, Martha Shenton1 the manifold of Signed Distance Maps (SDM) into the linear space of LogOdds. The LogOdds variant is superior, the log-odds maps (LogOdds), that explicitly addresses the issues above. LogOdds maps form a vector space

Fisher III, John

210

Cosmic Radiation as a Source of Odd Nitrogen in the Stratosphere  

Microsoft Academic Search

The effect of cosmic radiation on odd nitrogen production in the stratosphere is investigated, and odd nitrogen mixing ratios are desired for selected conditions. The concern about the effects of supersonic transport emissions on stratospheric ozone con- centrations has brought to light the significance of reactions involving nitrogen oxides (Crutzen, 1971; Johnstom, 1971), specifically NO, NO2, NOs, N205, and their

Peter Warneck

1972-01-01

211

The Correlation of Secondary Organic Aerosol with Odd Oxygen in Mexico City  

EPA Science Inventory

Data from a mountain location intercepting the Mexico City emission plume demonstrate a strong correlation between secondary organic aerosol and odd-oxygen (O3 + NO2). The measured oxygenated-organic aerosol correlates with odd-oxygen measurements with an a...

212

The Aeronomy of Odd Nitrogen in the Thermosphere 2. Twilight Emissions  

Microsoft Academic Search

A model developed for the aeronomy of odd nitrogen in the thermosphere is used to analyze rocket measurements of NOS) and NO densities. Data from Atmosphere Explorer were used to develop a consistent reaction kinetics model for odd nitrogen chemistry. We conclude that most NO + dissociative recombination events must produce N('D), that N('D) is quenched by O at a

D. F. Strobel; E. S. Oran; P. D. Feldman

1976-01-01

213

Clinically Referred ODD Children with or without CD and Healthy Controls: Comparisons across Contextual Domains  

ERIC Educational Resources Information Center

This study compares 6-11-year-old, clinically referred boys and girls diagnosed with Oppositional Defiant Disorder, either with (ODD + CD, n = 40) or without Conduct Disorder (ODD only; n = 136), to a matched sample of healthy control children (HC; n = 69). Multiple informants completed intake diagnostic interviews and self-reports to evaluate…

Kolko, David J.; Dorn, Lorah D.; Bukstein, Oscar; Burke, Jeffrey D.

2008-01-01

214

2Documenting Social Simulation Models: 3The ODD Protocol as a Standard  

E-print Network

1Chapter 8 2Documenting Social Simulation Models: 3The ODD Protocol as a Standard 4 AU1Volker Grimm minimum standards. The "Overview, Design concepts and Details" document 8protocol (ODD) is specifically specifying the details of 20a simulation (in a scholarly communication). Following such a protocol means

Tesfatsion, Leigh

215

Magnesium and titanium: "The odd couple" Local order and the influence of stress on the  

E-print Network

Magnesium and titanium: "The odd couple" Local order and the influence of stress on the hydrogen (Sweden) Cover: The graph on the cover is a collection of loading isotherms measured on magnesium thin UNIVERSITEIT Magnesium and titanium: "The odd couple" Local order and the influence of stress on the hydrogen

Dam, Bernard

216

ODD and ADHD Symptoms in Ukrainian Children: External Validators and Comorbidity  

ERIC Educational Resources Information Center

Objective: To examine potential external validators for oppositional defiant disorder (ODD) and attention-deficient/hyperactive disorder (ADHD) symptoms in a Ukrainian community-based sample of 600 children age 10 to 12 years old and evaluate the nature of co-occurring ODD and ADHD symptoms using mother- and teacher-defined groups. Method: In…

Drabick, Deborah A. G.; Gadow, Kenneth D.; Carlson, Gabrielle A.; Bromet, Evelyn J.

2004-01-01

217

Fitting Proportional Odds Models to Educational Data in Ordinal Logistic Regression Using Stata, SAS and SPSS  

ERIC Educational Resources Information Center

The proportional odds (PO) model, which is also called cumulative odds model (Agresti, 1996, 2002 ; Armstrong & Sloan, 1989; Long, 1997, Long & Freese, 2006; McCullagh, 1980; McCullagh & Nelder, 1989; Powers & Xie, 2000; O'Connell, 2006), is one of the most commonly used models for the analysis of ordinal categorical data and comes from the class…

Liu, Xing

2008-01-01

218

Limits on Log Odds Ratios for Unidimensional Item Response Theory Models  

ERIC Educational Resources Information Center

Bounds are established for log odds ratios (log cross-product ratios) involving pairs of items for item response models. First, expressions for bounds on log odds ratios are provided for one-dimensional item response models in general. Then, explicit bounds are obtained for the Rasch model and the two-parameter logistic (2PL) model. Results are…

Haberman, Shelby J.; Holland, Paul W.; Sinharay, Sandip

2007-01-01

219

Using Binary Logistic Regression Models for Ordinal Data with Non-proportional Odds  

Microsoft Academic Search

The proportional odds model (POM) is the most popular logistic regression model for analyzing ordinal response variables. However, violation of the main model assumption can lead to invalid results. This is demonstrated by application of this method to data of a study investigating the effect of smoking on diabetic retinopathy. Since the proportional odds assumption is not fulfilled, separate binary

Ralf Bender; Ulrich Grouven

1998-01-01

220

The Interplay among Preschool Child and Family Factors and the Development of ODD Symptoms  

ERIC Educational Resources Information Center

The present study examined (a) the interactions between early behavior, early parenting, and early family adversity in predicting later oppositional defiant disorder (ODD) symptoms, and (b) the reciprocal relations between parent functioning and ODD symptoms across the preschool years. Participants were 258 three-year-old children (138 boys, 120…

Harvey, Elizabeth A.; Metcalfe, Lindsay A.

2012-01-01

221

Association of Anxiety and ODD/CD in Children with and without ADHD  

ERIC Educational Resources Information Center

The goal of this study is to examine levels of oppositional defiant disorder (ODD) and conduct disorder (CD) in four groups of children: attention-deficit/hyperactivity disorder (ADHD) only, anxiety only, ADHD and anxiety, and controls (i.e., non-ADHD youth). Although children with ADHD exhibit more ODD and CD than non-ADHD youth, it is unknown if…

Humphreys, Kathryn L.; Aguirre, Vincent P.; Lee, Steve S.

2012-01-01

222

P-odd asymmetries in the processes l⁻(l\\/sup +\\/)+N. -->. l⁻(l\\/sup +\\/)+X and a possible method of testing the Weinberg-Salam theory  

Microsoft Academic Search

Deep inelastic scattering of polarized leptons and antileptons by nucleons is considered in the standard theory of the electroweak interaction. It is shown that the parton model is applicable as a consequence of the smallness of the isoscalar contribution to the P-odd asymmetries Aâ and A\\/sub +\\/. For fixed q², ..nu.., and y, a relation between the asymmetries Aâ and

S. Bilenkii; G. Motz

1981-01-01

223

If you are frustrated, tell someone! Odds are, they  

E-print Network

deep breaths keeps your pulse down and regulates your heart-rate. If you are having anxiety related concentration levels high as well as track success. Exercise: Physical activity helps relieve stress. Plus we have going into a task will directly effect the success we can achieve. Thinking negatively about

Westfall, Peter H.

224

Pure odd-order oscillators with constant excitation  

NASA Astrophysics Data System (ADS)

In this paper the excited vibrations of a truly nonlinear oscillator are analyzed. The excitation is assumed to be constant and the nonlinearity is pure (without a linear term). The mathematical model is a second-order nonhomogeneous differential equation with strong nonlinear term. Using the first integral, the exact value of period of vibration i.e., angular frequency of oscillator described with a pure nonlinear differential equation with constant excitation is analytically obtained. The closed form solution has the form of gamma function. The period of vibration depends on the value of excitation and of the order and coefficient of the nonlinear term. For the case of pure odd-order-oscillators the approximate solution of differential equation is obtained in the form of trigonometric function. The solution is based on the exact value of period of vibration. For the case when additional small perturbation of the pure oscillator acts, the so called 'Cveticanin's averaging method' for a truly nonlinear oscillator is applied. Two special cases are considered: one, when the additional term is a function of distance, and the second, when damping acts. To prove the correctness of the method the obtained results are compared with those for the linear oscillator. Example of pure cubic oscillator with constant excitation and linear damping is widely discussed. Comparing the analytically obtained results with exact numerical ones it is concluded that they are in a good agreement. The investigations reported in the paper are of special interest for those who are dealing with the problem of vibration reduction in the oscillator with constant excitation and pure nonlinear restoring force the examples of which can be found in various scientific and engineering systems. For example, such mechanical systems are seats in vehicles, supports for machines, cutting machines with periodical motion of the cutting tools, presses, etc. The examples can be find in electronics (electromechanical devices like micro-actuators and micro oscillators), in music instruments (hammers in piano), in human voice producing folds (voice cords), etc.

Cveticanin, L.

2011-02-01

225

Enhanced interferometry using squeezed thermal states and even or odd states  

E-print Network

We derive a general expression of the quantum Fisher information for a Mach-Zehnder interferometer, with the port inputs of an \\emph{arbitrary} pure state and a squeezed thermal state. We find that the standard quantum limit can be beaten, when even or odd states are applied to the pure-state port. In particular, when the squeezed thermal state becomes a thermal state, all the even or odd states have the same quantum Fisher information for given photon numbers. For a squeezed thermal state, optimal even or odd states are needed to approach the Heisenberg limit. As examples, we consider several common even or odd states: Fock states, even or odd coherent states, squeezed vacuum states, and single-photon-subtracted squeezed vacuum states. We also demonstrate that super-precision can be realized by implementing the parity measurement for these states.

Qing-Shou Tan; Jie-Qiao Liao; Xiaoguang Wang; Franco Nori

2014-05-10

226

Properties of rotating Einstein-Maxwell-Dilaton black holes in odd dimensions  

E-print Network

We investigate rotating Einstein-Maxwell-Dilaton (EMd) black holes in odd dimensions. Focusing on black holes with equal-magnitude angular momenta, we determine the domain of existence of these black holes. Non-extremal black holes reside with the boundaries determined by the static and the extremal rotating black holes. The extremal EMd black holes show proportionality of their horizon area and their angular momenta. Thus the charge does not enter. We also address the Einstein-Maxwell case, where the extremal rotating black holes exhibit two branches. On the branch emerging from the Myers-Perry solutions their angular momenta are proportional to their horizon area, whereas on the branch emerging from the static solutions their angular momenta are proportional to their horizon angular momenta. Only subsets of the near-horizon solutions are realized globally. Investigating the physical properties of these EMd black holes, we note that one can learn much about the extremal rotating solutions from the much simpler static solutions. The angular momenta of the extremal black holes are proportional to the area of the static ones for the Kaluza-Klein value of the dilaton coupling constant, and remain analogous for other values. The same is found for the horizon angular velocities of the extremal black holes, which possess an analogous behavior to the surface gravity of the static black holes. The gyromagnetic ratio is rather well approximated by the `static' value, obtained perturbatively for small angular momenta.

Jose Luis Blazquez-Salcedo; Jutta Kunz; Francisco Navarro-Lerida

2013-10-31

227

Properties of rotating Einstein-Maxwell-dilaton black holes in odd dimensions  

NASA Astrophysics Data System (ADS)

We investigate rotating Einstein-Maxwell-dilaton (EMd) black holes in odd dimensions. Focusing on black holes with equal-magnitude angular momenta, we determine the domain of existence of these black holes. Nonextremal black holes reside with the boundaries determined by the static and the extremal rotating black holes. The extremal EMd black holes show proportionality of their horizon area and their angular momenta. Thus the charge does not enter. We also address the Einstein-Maxwell case, where the extremal rotating black holes exhibit two branches. On the branch emerging from the Myers-Perry solutions, their angular momenta are proportional to their horizon area, whereas on the branch emerging from the static solutions their angular momenta are proportional to their horizon angular momenta. Only subsets of the near-horizon solutions are realized globally. Investigating the physical properties of these EMd black holes, we note that one can learn much about the extremal rotating solutions from the much simpler static solutions. The angular momenta of the extremal black holes are proportional to the area of the static ones for the Kaluza-Klein value of the dilaton coupling constant, and remain analogous for other values. The same is found for the horizon angular velocities of the extremal black holes, which possess an analogous behavior to the surface gravity of the static black holes. The gyromagnetic ratio is rather well approximated by the "static" value, obtained perturbatively for small angular momenta.

Blázquez-Salcedo, Jose Luis; Kunz, Jutta; Navarro-Lérida, Francisco

2014-01-01

228

Analysis of the triaxial, strongly deformed bands in odd-odd nucleus 164Lu with the tops-on-top model  

NASA Astrophysics Data System (ADS)

The top-on-top model with angular-momentum-dependent moments of inertia is extended to the tops-on-top model for an odd-odd nucleus, where one proton and one neutron in each single-j orbital are coupled to the triaxial rotor. For a pure rotor case, an explicit algebraic formula for the triaxial, strongly deformed (TSD) band levels is given, and its stability problem is discussed. Both positive and negative parity TSD bands are well reproduced by taking account of attenuation factors in the Coriolis interaction and the proton-neutron interaction in the recoil term. Difference in quantum numbers between the yrast and yrare TSD bands is confirmed by direct estimation of spin alignments. The electromagnetic transition rates of B(M1) are much reduced because of the different sign of g-factors in comparison with the odd-A case, while B(E2) are in the same order.

Sugawara-Tanabe, Kazuko; Tanabe, Kosai; Yoshinaga, Naotaka

2014-06-01

229

Electron-capture branching ratio measurements of odd-odd intermediate nuclei in double-beta decay at the TITAN facility  

NASA Astrophysics Data System (ADS)

A novel technique to measure electron-capture branching ratios is being introduced, where the TITAN ion traps and the ISAC radioactive beam facility at TRIUMF are the central components. The technique will be applied to the intermediate odd-odd nuclei in double-beta decay. The decay properties of these nuclei will constrain theoretical models dealing with the evaluation of the nuclear matrix elements for both the 2 ? and the 0 ? mode. The present setup and its potential for measuring extremely low branching ratios at low instrumental backgrounds is described.

Lennarz, A.; Brunner, T.; Andreoiu, C.; Chaudhuri, A.; Chowdhury, U.; Delheij, P.; Dilling, J.; Ettenauer, S.; Frekers, D.; Gallant, A. T.; Grossheim, A.; Jang, F.; Kwiatkowski, A. A.; Ma, T.; Mané, E.; Pearson, M. R.; Schultz, B. E.; Simon, M. C.; Simon, V. V.

2014-01-01

230

Positive parity states and some electromagnetic transition properties of even-odd europium isotopes  

SciTech Connect

The positive-parity low-spin states of even-odd Europium isotopes ({sup 151-155}Eu) were studied within the framework of the interacting boson-fermion model. The calculated positive low-spin state energy spectra of the odd Eu isotope were found to agree quite well with the experimental data. The B(E2) values were also calculated and it was found that the calculated positive-parity low-spin state energy spectra of the odd-A Eu isotopes agree quite well with the experimental data.

Yazar, Harun Resit, E-mail: yazar@nevsehir.edu.tr [Nevsehir University, Faculty of Art and Science (Turkey)

2013-06-15

231

ADHD, ODD, and CD: Do They Belong to a Common Psychopathological Spectrum? A Case Series  

PubMed Central

Purpose of Research. Numerous studies have reported comorbidities, overlapping symptoms, and shared risk factors among cases of attention deficit hyperactivity disorder (ADHD), oppositional defiant disorder (ODD) and conduct disorder (CD). We present three adolescent males aged 13–16 years with conduct disorder having past history of ADHD and ODD. Principal Result. The symptom profile especially in domains of aggression, hostility, and emotionality as well as the manner of progression from ADHD to ODD and CD in the above cases shows a similar pattern. Conclusion. These common developmental pathways and overlapping symptoms suggest the possibility of a common psychopathological spectrum encompassing the three externalizing disorders. PMID:23097736

Ghosh, Sayanti; Sinha, Mausumi

2012-01-01

232

The decoherence of the quantum excitation of even/odd coherent states in a photon-loss channel  

NASA Astrophysics Data System (ADS)

In this paper, the decoherence of the quantum excitation (the photon-added case) of even/odd coherent states, ({{({{\\hat{a}}^{\\dagger }})}^{m}}\\mid {{\\alpha }_{+/- }}\\rangle ) in a photon-loss channel is studied via the evaluation of the negative part of the Wigner quasi-distribution function in terms of the rescaled time (\\gamma t). We first obtain the explicit form of the time-dependent Wigner functions of the states considered, for arbitrary values of the photon excitations. To achieve this purpose, an equivalent Fokker-Planck-like equation which describes the time evolution of the Wigner function in the framework of the standard master equation of the density matrix is used. Then, by analyzing the time variation of the corresponding Wigner functions, the loss of the nonclassicality behavior and, hence, the decay of the negative part of the Wigner functions as a result of decoherence are clearly shown. In particular, we derive the threshold value of the rescaled time for single-photon-added even and odd coherent states; through this it is observed that the associated Wigner functions become positive whenever the rescaled time exceeds that value, i.e., the decoherence has become complete. By virtue of numerical calculations, it is also illustrated that the negative volume of the corresponding Wigner functions decreases with increasing time. In addition, the states with larger values of the excitation number m generally (but not absolutely always) possess smaller values of the rescaled threshold time.

Mohammadbeigi, A.; Tavassoly, M. K.

2014-08-01

233

Sedentary behavior, physical activity, and likelihood of breast cancer among black and white women: a report from the Southern Community Cohort Study  

PubMed Central

Increased physical activity has been shown to be protective for breast cancer although few studies have examined this association in black women. In addition, limited evidence to date indicates that sedentary behavior may be an independent risk factor for breast cancer. We examined sedentary behavior and physical activity in relation to subsequent incident breast cancer in a nested case-control study within 546 cases (374 among black women) and 2,184 matched controls enrolled in the Southern Community Cohort Study. Sedentary and physically active behaviors were assessed via self-report at study baseline (2002–2009) using a validated physical activity questionnaire. Conditional logistic regression was used to estimate mutually adjusted odds ratios (OR) and corresponding 95% confidence intervals (CI) for quartiles of sedentary and physical activity measures in relation to breast cancer risk. Being in the highest versus lowest quartile of total sedentary behavior (?12 hours/day versus <5.5 hours/day) was associated with increased odds of breast cancer among white women (OR=1.94 [95% CI 1.01–3.70], p for trend=0.1) but not black women (OR=1.23 [95% CI 0.82–1.83], p for trend=0.6) after adjustment for physical activity. After adjustment for sedentary activity, greater physical activity was associated with reduced odds for breast cancer among white women (p for trend=0.03) only. In conclusion, independent of one another, sedentary behavior and physical activity are risk factors for breast cancer among white women. Differences in these associations between black and white women require further investigation. Reducing sedentary behavior and increasing physical activity are potentially independent targets for breast cancer prevention interventions. PMID:23576427

Cohen, Sarah S.; Matthews, Charles E.; Bradshaw, Patrick T.; Lipworth, Loren; Buchowski, Maciej S.; Signorello, Lisa B.; Blot, William J.

2013-01-01

234

Sustainable Odds: Towards Quantitative Decision Support when Relevant Probabilities are not Available  

NASA Astrophysics Data System (ADS)

There is, at present, no attractive foundation for quantitative probabilistic decision support in the face of model inadequacy, or given ambiguity (deep uncertainty) regarding the relative likelihood of various outcomes, known or unknown. True model error arguably precludes the extraction of objective probabilities from an ensemble of model runs drawn from an available (inadequate) model class, while the acknowledgement of incomplete understanding precludes the justified use of (if not the very formation of) an individual's subjective probabilities. An alternative approach based on Sustainable Odds is proposed and investigated. Sustainable Odds differ from "fair odds" (and are easily distinguished any claim which implying well defined probabilities) as the probabilities implied by sustainable odds summed over all outcomes is expected to exceed one. Traditionally, a person's fair odds are found by identifying the probability level at which one would happily accept either side of a bet, thus the probabilities implied by fair odds always sum to one. Knowing that one has incomplete information and perhaps even erroneous beliefs, there is no compelling reason a rational agent should accept the constraint implied by "fair odds" in any bet. Rather, a rational agent might insist on longer odds both on the event and against the event in order to account for acknowledged ignorance. Let probabilistic odds imply any set of odds for which the implied probabilities sum to one; once model error is acknowledged can one rationally demand non-probabilistic odds? The danger of using fair odds (or probabilities) in decision making is illustrated by considering the risk of ruin a cooperative insurance scheme using probabilistic odds is exposed to. Cases where knowing merely that the insurer's model is imperfect, and nothing else, is sufficient to place bets which drive the insurer to an unexpectedly early ruin are presented. Methodologies which allow the insurer to avoid this early ruin are explored; those which prevent early ruin are said to provide "sustainable odds", and it is suggested that these must be non-probabilistic. The aim here is not for the insurance cooperative to make a profit in the long run (or to form a book in any one round) but rather to increase the chance that the cooperative will not go bust, merely breaking even in the long run and thereby continuing to provide a service. In the perfect model scenario, with complete knowledge of all uncertainties and unlimited computational resources, fair odds may prove to be sustainable. The implications these results hold in the case of games against nature, which is perhaps a more relevant context for decision makers concerned with geophysical systems, are discussed. The claim that acknowledged model error makes fair (probabilistic) odds an irrational aim is considered, as are the challenges of working within the framework of sustainable (but non-probabilistic) odds.

Smith, L. A.

2012-04-01

235

Testing Lorentz invariance using an odd-parity asymmetric optical resonator  

SciTech Connect

We present the first experimental test of Lorentz invariance using the frequency difference between counter-propagating modes in an asymmetric odd-parity optical resonator. This type of test is {approx}10{sup 4} more sensitive to odd-parity and isotropic (scalar) violations of Lorentz invariance than equivalent conventional even-parity experiments due to the asymmetry of the optical resonator. The disadvantages of odd-parity resonators have been negated by the use of counter-propagating modes, delivering a high level of immunity to environmental fluctuations. With a nonrotating experiment our result limits the isotropic Lorentz violating parameter {kappa}-tilde{sub tr} to 3.4{+-}6.2x10{sup -9}, the best reported constraint from direct measurements. Using this technique the bounds on odd-parity and scalar violations of Lorentz invariance can be improved by many orders of magnitude.

Baynes, Fred N.; Luiten, Andre N.; Tobar, Michael E. [Frequency Standards and Metrology, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009 (Australia)

2011-10-15

236

Changing the Odds A North Carolina family's search to help those with TBI  

MedlinePLUS

... Story: Traumatic Brain Injury Changing the Odds A North Carolina family's search to help those with TBI ... was injured in a 2002 traffic accident in North Carolina. Photo courtesy of Hind's Feet Farms TBI ...

237

Psykisk helse hos mødre til førskolebarn med symptomer på ADHD og ODD : En prospektiv longitudinell studie.  

E-print Network

??Bakgrunn og mål: Attention-Deficit/Hyperactivity Disorder (ADHD) og Oppositional Defiant Disorder (ODD) regnes blant de vanligste psykiske lidelsene hos barn og unge. Forskning har lenge funnet… (more)

Rye, Ingvild Hofseth

2013-01-01

238

Construct Validity of ADHD/ODD Rating Scales: Recommendations for the Evaluation of Forthcoming DSM-V ADHD/ODD Scales  

ERIC Educational Resources Information Center

Exploratory structural equation modeling (SEM) was applied to a multiple indicator (26 individual symptom ratings) by multitrait (ADHD-IN, ADHD-HI and ODD factors) by multiple source (mothers, fathers and teachers) model to test the invariance, convergent and discriminant validity of the Child and Adolescent Disruptive Behavior Inventory with 872…

Burns, G. Leonard; Walsh, James A.; Servera, Mateu; Lorenzo-Seva, Urbano; Cardo, Esther; Rodriguez-Fornells, Antoni

2013-01-01

239

Time-odd triaxial relativistic mean field approach for nuclear magnetic moments  

Microsoft Academic Search

The time-odd triaxial relativistic mean field approach is developed and applied to the investigation of the ground-state properties of light odd-mass nuclei near the double-closed shells. The nuclear magnetic moments including the isoscalar and isovector ones are calculated, and good agreement with Schmidt values is obtained. Taking ¹⁷F as an example, the splitting of the single-particle levels (around 0.7 MeV

J. Meng; H. Chen; J. M. Yao

2006-01-01

240

Time-odd triaxial relativistic mean field approach for nuclear magnetic moments  

Microsoft Academic Search

The time-odd triaxial relativistic mean field approach is developed and applied to the investigation of the ground-state properties of light odd-mass nuclei near the double-closed shells. The nuclear magnetic moments including the isoscalar and isovector ones are calculated, and good agreement with Schmidt values is obtained. Taking F17 as an example, the splitting of the single-particle levels (around 0.7 MeV

J. M. Yao; H. Chen; J. Meng

2006-01-01

241

Phase-sensitive test of odd-parity superconductivity in Sr2RuO4  

Microsoft Academic Search

The possibility of odd-parity, spin-triplet pairing of electrons was first pointed out in 1960 after the publication of the BCS theory for superconductivity. Sr2RuO4, the only Cu-free layered perovskite superconductor, was predicted to be a material featuring such an unusual pairing state. We have in the past several years pursued the phase-sensitive test of odd-parity pairing in Sr2RuO4 following the

Ying Liu

2005-01-01

242

FBCS for odd nuclei and the inverse gap equations: Application to N = 50 isotones  

Microsoft Academic Search

The single-quasiparticle descriptions of odd superfluid nuclei by BCS theory and by particle number projection methods are compared with the exact lowest-seniority shell model. The purpose is to trace systematic inadequacies of the inverse-gap-equations (IGE) method to extract single-particle energies from spectroscopic data on odd nuclei and to improve that method by using number projection techniques. The IGE method yields

K. Allaart; E. Boeker

1972-01-01

243

Analytical description of odd-A nuclei near the critical point of the spherical to axially deformed shape transition  

SciTech Connect

A coupling scheme for even-even nuclei with the X(5) critical point symmetry coupled to a single valence nucleon in a j orbit is proposed to approximately describe the critical point phenomena of spherical to axially deformed shape (phase) transition in odd-A nuclear systems. The corresponding scheme, which can be solved analytically, is called the X(5/(2j+1)) model. A special case with j=1/2 is analyzed in detail to show its level structure and transition patterns. It is further shown that {sup 189}Au and {sup 155}Tb may be possible X(5/(2j+1)) symmetry candidates with j=1/2 and j=3/2, respectively.

Zhang Yu [Department of Physics, Liaoning Normal University, Dalian 116029 (China); Pan Feng [Department of Physics, Liaoning Normal University, Dalian 116029 (China); Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001 (United States); Liu Yuxin [Department of Physics and the National Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China); Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 (China); Hou Zhanfeng [Department of Physics and the National Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China); Draayer, J. P. [Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001 (United States)

2010-09-15

244

M Times Photon Subtraction-Addition Coherent Superposition Operated Odd-Schr\\H{o}dinger-cat State: Nonclassicality and Decoherence  

E-print Network

We introduce a new non-Gaussian state, generated by m times coherent superposition operation $a\\cos \\theta +a^{\\dagger }e^{i\\varphi }\\sin \\theta $ (MCSO) on odd-Schrodinger-cat state (OSCS). Its normalized constant is turned out to be related with the Hermite polynomial. We further investigate the nonclassical properties of the MCSO-OSCS through Mandel's Q-parameter, quadrature squeezing, the photocount distribution and Wigner function (WF). It is shown that the nonclassicality of the MCSO-OSCS is influenced by the number of times (m) of coherent superpositon operation, the angle $\\theta $ and the amplitude of the coherent state (|$\\alpha _{0}$|). Especially the volume of negative region of WF increases with the increment of parameters m, $\\theta $ and $\\alpha _{0}$. We also investigate the decoherence of the MCSO-OSCS in terms of the fadeaway of the negativity of WF in a thermal environment.

Huang, Li; Jiang, Li-ying; Chen, Ge; Xu, Xue-xiang; Yuan, Wen

2014-01-01

245

Efficient odd straight medium chain free fatty acid production by metabolically engineered Escherichia coli.  

PubMed

Free fatty acids (FFAs) can be used as precursors for the production of biofuels or chemicals. Different composition of FFAs will be useful for further modification of the biofuel/biochemical quality. Microbial biosynthesis of even chain FFAs can be achieved by introducing an acyl-acyl carrier protein thioesterase gene into E. coli. In this study, odd straight medium chain FFAs production was investigated by using metabolic engineered E. coli carrying acyl-ACP thioesterase (TE, Ricinus communis), propionyl-CoA synthase (Salmonella enterica), and ?-ketoacyl-acyl carrier protein synthase III (four different sources) with supplement of extracellular propionate. By using these metabolically engineered E. coli, significant quantity of C13 and C15 odd straight-chain FFAs could be produced from glucose and propionate. The highest concentration of total odd straight chain FFAs attained was 1205?mg/L by the strain HWK201 (pXZ18, pBHE2), and 85% of the odd straight chain FFAs was C15. However, the highest percentage of odd straight chain FFAs was achieved by the strain HWK201 (pXZ18, pBHE3) of 83.2% at 48?h. This strategy was also applied successfully in strains carrying different TE, such as the medium length acyl-ACP thioesterase gene from Umbellularia californica. C11 and C13 became the major odd straight-chain FFAs. PMID:24889416

Wu, Hui; San, Ka-Yiu

2014-11-01

246

Physics and Consciousness  

E-print Network

Some contributions of physics towards the understanding of consciousness are described. As recent relevant models, associative memory neural networks are mentioned. It is shown that consciousness and quantum physics share some properties. Two existing quantum models are discussed.

Patricio Perez

1995-10-17

247

Impedances of thin and layered systems: cells with even or odd numbers of interfaces.  

PubMed

Impedance data, e.g., system responses, from perturbing small amplitude applied sinusoid signals of near DC to high kilohertz frequencies, give chemical information. Analysis of frequency-dependent imaginary and real impedance proceeds from equivalent analog circuit elements to chemical and physical significance determined from many model systems. Already, it is possible to interpret bulk transport processes, surface kinetic effects, diffusion phenomena, and dependencies on the type of contacts: symmetric ion contact, symmetric metal contact or asymmetric metal-ion interfaces, and cell design; even (battery or sensor) and odd numbered (constrained junction or immiscible liquid) interfaces in a system. These analyses cover the chemical origins, locations and meanings of the lumped resistances, capacitances and transmission lines that are introduced by engineers in their strict analog interpretations of the impedance data. Examples cover simple ohmic, simple diffusive behavior, complex behavior with surface interfacial kinetics or surface resistances, and with finite (nonblocking) or infinite (blocking) DC impedance. High and low frequency responses may show so-called constant phase element character that suggests fractal behavior. Low frequency data occasionally appear in the second quadrant of impedance plane plots. These results are caused by negative capacitances and resistances. In this paper, chemical interpretations of analog circuit elements are mainly based on theory and observations of thin cells of electrolytes and solid and liquid films (membranes) that are ionic or mixed ionic/electronic conductors. The information should carry over into thickened, gelled, and tissue electrolyte phases and serve as a basis for medically-oriented, perhaps diagnostic impedance measurement applications already pioneered by Herman Schwan. PMID:1443830

Buck, R P

1992-01-01

248

Consistency and universality in odd and even dimensional space-time QFT perturbative calculations  

NASA Astrophysics Data System (ADS)

The questions related to the consistent interpretation of QFT perturbative amplitudes are considered in light of a novel procedure, alternative to the traditional ones based on regularization prescriptions. A detailed discussion about the aspects associated to the space-time dimension is performed. For this purpose, it is considered a simple model having a fermionic vector current, coupled to a vector field, as well as a fermionic scalar current, coupled to a scalar field, both of them composed by different species of massive fermions. The referred currents are related in a precise way, which is reflected in the Ward identities for the perturbative physical amplitudes. The double vector two-point fermionic function, related to the vacuum polarization tensor of QED, as well as the amplitudes related to such quantity through relations among Green functions are explicit evaluated in space-time dimensions d = 2, 3, 4, 5 and 6. In the adopted procedure the perturbative amplitudes are not modified in intermediary steps of the calculations, as occurs in regularization procedures. Divergent Feynman integrals are not really solved. They appear only in standard objects, conveniently defined, where no physical parameter is present. Only very general properties for such quantities are assumed. For the finite parts, a set of functions is introduced which allows universal forms for the results. We show that scale independent, ambiguity free amplitudes are automatically obtained in a regularization independent way. As a consequence, interesting and, in certain way, surprising aspects are revealed in a clear and transparent way when the Ward identities and low-energy limits are verified for the simple amplitudes considered in the presently reported investigation. The obtained results suggest that the procedure can be considered as an advantageous tool to handle with the problem of divergences in perturbative solutions of QFT's, relative to the traditional regularization techniques, since the obtained results are so consistent as desirable and there are no limitations of applicability. In particular, the method can be applied in odd and even space-time dimensions having extra dimensions, which is not possible within the context of traditional regularization.

Battistel, O. A.; Dallabona, G.

2014-05-01

249

Impact of ODD Dimensions on the Temporal Ordering of Conduct Problems and Depression across Childhood and Adolescence in Girls  

PubMed Central

Background Little is known about the role of ODD dimensions on the temporal unfolding of CD and depression in girls between childhood and adolescence. Method The year-to-year associations between CD and depressive symptomatology were examined using nine waves of annually collected data (ages 8 through 16 years) from 1215 participants of the Pittsburgh Girls Study. A series of autoregressive path models were tested that included ODD-Emotion Dysregulation (ODD-ED) and ODD-Defiance, as time varying covariates on CD predicting depression severity in the following year, and vice versa. Results Conduct problems, depression, and ODD dimensions were relatively stable throughout childhood and adolescence, and a moderate degree of covariance was observed between these variables. Path analyses showed that CD often preceded depression across this developmental period, although the effect sizes were small. There was less consistent prediction from depression to CD. The overlap between ODD-ED and CD partially explained the prospective relations from CD to depression, whereas these paths were fully explained by the overlap between ODD-ED and depression. The overlap between ODD-Defiance and CD did not account for the prospective relations from CD to depression. In contrast, the overlap between ODD-Defiance and depression accounted for virtually all paths from CD to depression. Accounting for the overlap between ODD dimensions and both CD and depression eliminated all significant predictive paths. Conclusions Symptoms of CD tend to precede depression in girls during childhood and adolescence. However, covariance between depression and both ODD-ED and ODD-Defiance accounts for these prospective relations. ODD dimensions should be assessed when evaluating risk for comorbid depression in girls with conduct problems, and emotion dysregulation and defiance aspects of ODD should be identified as targets for treatment in order to prevent depression in the future. PMID:21815894

Hipwell, Alison E.; Stepp, Stephanie; Feng, Xin; Burke, Jeff; Battista, Deena R.; Loeber, Rolf; Keenan, Kate

2011-01-01

250

Odd- and branched-chain fatty acids in milk fat - characteristic and health properties.  

PubMed

This review analyzes the current state of knowledge on odd- and branched-chain fatty acids present in milk fat. Special attention is devoted to the characteristic, synthesis in ruminants, factors affecting their content in milk fat and pro-health properties of these compounds. The group of odd- and branched-chain fatty acids includes mainly saturated fatty acids with one or more methyl branches in the iso or anteiso position. These fatty acids are largely derived from ruminal bacteria and they have been transferred to ruminant tissue (milk and meat). For that reason they have been used as biomarkers of rumen fermentation. Odd- and branched-chain fatty acids are exogenous products for humans, and therefore have specific properties. The results of research from recent decades show that odd- and branched-chain fatty acids have anti-cancer activity. Branched-chain fatty acids may reduce the incidence of necrotizing enterocolitis. Additionally, these compounds have a beneficial effect on proper tissue function and on functioning and development of the infant gut, whereas odd-chain fatty acids are considered as biomarkers of milk fat intake by humans. So far, not all the mechanisms of activity of these compounds are known thoroughly. They should be more carefully studied for application of their biological effects in prevention and treatment. PMID:25228507

Adamska, Agata; Rutkowska, Jaros?awa

2014-01-01

251

Anger and Irritability Symptoms among Youth with ODD: Cross-Informant Versus Source-Exclusive Syndromes  

PubMed Central

We examined differences in co-occurring psychological symptoms and background characteristics among clinically referred youth with oppositional defiant disorder (ODD) with and without anger/irritability symptoms (AIS) according to either parent or teacher (source-exclusive) and both informants (cross-informant), youth with noncompliant symptoms (NS) of ODD, and non-ODD clinic controls. Parents and teachers evaluated 1127 youth (ages 6–18) with a DSM-IV-referenced rating scale to assess ODD and co-occurring psychological symptoms. Parents also completed a background questionnaire (demographic, developmental, treatment, relationship, and academic characteristics) and teachers rated school functioning. Source-exclusive AIS groups were associated with different clinical features, and there was some evidence that cross-informant youth had more mental health concerns than source-exclusive groups. Findings varied to some extent among older (12–18 years) versus younger (6–11 years) youth. In general, the NS group (youth without AIS) was the most similar to clinic controls. AIS and NS are likely candidates for component phenotypes in ODD and continued research into their pathogenesis may have important implications for nosology, etiology, and intervention. PMID:22581374

Drabick, Deborah A. G.

2013-01-01

252

Factors associated with young children's self-perceived physical competence and self-reported physical activity  

Microsoft Academic Search

The aim of this study was to identify factors associated with self-reported physical activity (PA), self-perceived physical fitness and compe- tence in physical education (PE) among young children. The study included physical tests, anthropometric measures and a questionnaire. The study group comprised 206 children (114 boys and 92 girls, aged 8-12 years). Positive Odds Ratio was used in the logistic

A.-C. Sollerhed; E. Apitzsch; L. Rastam; G. Ejlertsson

2008-01-01

253

A description of odd mass Xe and Te isotopes in the Interacting Boson-Fermion Model  

NASA Astrophysics Data System (ADS)

Recent interest in spectroscopic factors for single-neutron transfer in low-spin states of the even-odd Xenon 125,127,129.131Xe and even-odd Tellurium, 123,125,127,129,131Te isotopes stimulated us to study these isotopes within the framework of the Interacting Boson-Fermion Model. The fermion that is coupled to the system of bosons is taken to be in the positive parity 3s1/2, 2d3/2, 2d5/2, 1g7/2 and in the negative 1h11/2 single-particle orbits, the complete 50-82 major shell. The calculated energies of low-spin energy levels of the odd isotopes are found to agree well with the experimental data. Also, B(E2), B(M1) values and spectroscopic factors for single-neutron transfer are calculated and compared with experimental data.

Abu-Musleh, S.; Abu-Zeid, H. M.; Scholten, O.

2014-07-01

254

Odd-Particle Systems in the Shell Model Monte Carlo Method: Circumventing a Sign Problem  

NASA Astrophysics Data System (ADS)

The shell model Monte Carlo method is a powerful technique to calculate thermal and ground-state properties of strongly correlated finite-size systems. However, its application to odd-particle-number systems has been hampered by the sign problem that originates from the projection on an odd number of particles. We circumvent this sign problem for the ground-state energy by extracting the ground-state energy of the odd-particle-number system from the asymptotic behavior of the imaginary-time single-particle Green’s function of the even-particle-number system. We apply this method to calculate pairing gaps of nuclei in the iron region. Our results are in good agreement with experimental pairing gaps.

Mukherjee, Abhishek; Alhassid, Y.

2012-07-01

255

Odd Sensation Induced by Moving-Phantom which Triggers Subconscious Motor Program  

PubMed Central

Our motor actions are sometimes not properly performed despite our having complete understanding of the environmental situation with a suitable action intention. In most cases, insufficient skill for motor control can explain the improper performance. A notable exception is the action of stepping onto a stopped escalator, which causes clumsy movements accompanied by an odd sensation. Previous studies have examined short-term sensorimotor adaptations to treadmills and moving sleds, but the relationship between the odd sensation and behavioral properties in a real stopped-escalator situation has never been examined. Understanding this unique action-perception linkage would help us to assess the brain function connecting automatic motor controls and the conscious awareness of action. Here we directly pose a question: Does the odd sensation emerge because of the unfamiliar motor behavior itself toward the irregular step-height of a stopped escalator or as a consequence of an automatic habitual motor program cued by the escalator itself. We compared the properties of motor behavior toward a stopped escalator (SE) with those toward moving escalator and toward a wooden stairs (WS) that mimicked the stopped escalator, and analyzed the subjective feeling of the odd sensation in the SE and WS conditions. The results show that moving escalator-specific motor actions emerged after participants had stepped onto the stopped escalator despite their full awareness that it was stopped, as if the motor behavior was guided by a “phantom” of a moving escalator. Additionally, statistical analysis reveals that postural forward sway that occurred after the stepping action is directly linked with the odd sensation. The results suggest a dissociation between conscious awareness and subconscious motor control: the former makes us perfectly aware of the current environmental situation, but the latter automatically emerges as a result of highly habituated visual input no matter how unsuitable the motor control is. This dissociation appears to yield an attribution conflict, resulting in the odd sensation. PMID:19492054

Fukui, Takao; Kimura, Toshitaka; Kadota, Koji; Shimojo, Shinsuke; Gomi, Hiroaki

2009-01-01

256

Odd-Even Effect in Molecular Electronic Transport via an Aromatic Ring.  

PubMed

A distinct odd-even effect on the electrical properties, induced by monolayers of alkyl-phenyl molecules directly bound to Si(111), is reported. Monomers of H2C?CH-(CH2)n-phenyl, with n = 2-5, were adsorbed onto Si-H and formed high-quality monolayers with a binding density of 50-60% Si(111) surface atoms. Molecular dynamics simulations suggest that the binding proximity is close enough to allow efficient ?-? interactions and therefore distinctly different packing and ring orientations for monomers with odd or even numbers of methylenes in their alkyl spacers. The odd-even alternation in molecular tilt was experimentally confirmed by contact angle, ellipsometry, FT-IR, and XPS with a close quantitative match to the simulation results. The orientations of both the ring plane and the long axis of the alkyl spacer are more perpendicular to the substrate plane for molecules with an even number of methylenes than for those with an odd number of methylenes. Interestingly, those with an even number conduct better than the effectively thinner monolayers of the molecules with the odd number of methylenes. We attribute this to a change in the orientation of the electron density on the aromatic rings with respect to the shortest tunneling path, which increases the barrier for electron transport through the odd monolayers. The high sensitivity of molecular charge transport to the orientation of an aromatic moiety might be relevant to better control over the electronic properties of interfaces in organic electronics. PMID:25338192

Toledano, Tal; Sazan, Haim; Mukhopadhyay, Sabyasachi; Alon, Hadas; Lerman, Keti; Bendikov, Tatyana; Major, Dan T; Sukenik, Chaim N; Vilan, Ayelet; Cahen, David

2014-11-18

257

APPLIED PHYSICS APPLIED PHYSICS  

E-print Network

MSc APPLIED PHYSICS #12;MSc APPLIED PHYSICS This taught Masters course is based on the strong research in Applied Physics in the University's Department of Physics. The department has an impressive photonics and quantum optics, Physics and the Life Sciences, and solid state physics. The knowledge gained

Mottram, Nigel

258

Systematics of one-quasiparticle configurations in neutron-rich odd Sr, Zr, and Mo isotopes with the Gogny energy density functional  

SciTech Connect

The systematics of one-quasiparticle configurations in neutron-rich Sr, Zr, and Mo odd isotopes is studied within the Hartree-Fock-Bogoliubov plus equal filling approximation method preserving both axial and time-reversal symmetries. Calculations based on the Gogny energy density functional with both the standard D1S parametrization and the new D1M incarnation of this functional are included in our analysis. The nuclear deformation and shape coexistence inherent to this mass region are shown to play a relevant role in the understanding of the spectroscopic features of the ground and low-lying one-quasineutron states.

Rodriguez-Guzman, R. [Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid (Spain); Sarriguren, P.; Robledo, L. M. [Departamento de Fisica Teorica, Universidad Autonoma de Madrid, E-28049 Madrid (Spain)

2010-10-15

259

An Extended Approximation for the Lowest-lying States in Odd-mass Nuclei  

E-print Network

An enhanced model, based on the Extended Boson Approximation, for the lowest-lying states in odd-mass nuclei is presented. Our approach is built on the Quasiparticle Phonon Model, extending it to take into account the ground state correlations due to the action of the Pauli principle more accurately than in the conventional theory. The derived interaction strengths between the quasiparticles and the phonons in this model depend on the quasiparticle occupation numbers explicitly coupling the odd-mass nucleus equations with those of the even-even core. Within this model we calculated the transition probabilities in several Te, Xe and Ba isotopes with A$\\approx$130.

S. Mishev; V. V. Voronov

2010-12-06

260

Extended approximation for the lowest-lying states in odd-mass nuclei  

SciTech Connect

An enhanced model, based on the extended boson approximation, for the lowest-lying states in odd-mass nuclei is presented. Our approach is built on the quasiparticle phonon model, extending it to take into account the ground-state correlations due to the action of the Pauli principle more accurately than in the conventional theory. The derived interaction strengths between the quasiparticles and the phonons in this model depend on the quasiparticle occupation numbers explicitly coupling the odd-mass nucleus equations with those of the even-even core. Within this model we calculated the transition probabilities in several Te, Xe, and Ba isotopes with A{approx_equal}130.

Mishev, S.; Voronov, V. V. [Joint Institute for Nuclear Research, 6 Joliot-Curie str., Dubna 141980 (Russian Federation)

2010-12-15

261

An odd-number limitation of extended time-delayed feedback control in autonomous systems  

E-print Network

We propose a necessary condition for the successful stabilisation of a periodic orbit using the extended version of time-delayed feedback control. This condition depends on the number of real Floquet multipliers larger than unity and is therefore related to the well-known odd-number limitation in non-autonomous systems. We show that the period of the orbit which is induced by mismatching the delay-time of the control scheme and the period of the uncontrolled orbit plays an important role in the formulation of the odd-number limitation in the autonomous case.

Andreas Amann; Edward W. Hooton

2013-07-31

262

From Diphoton GDAs and Photon GPDs to the chiral odd Photon DA  

E-print Network

The photon is a very interesting object for QCD studies since it has both a pointlike coupling to quarks, which yields a perturbative part of photon's wave function, and a non-perturbative coupling related to the magnetic susceptibility of the QCD vacuum and which builds its chiral-odd twist-2 distribution amplitude. The first feature allows us to compute the photon anomalous generalized parton distributions (GPD) and the diphoton generalized distribution amplitudes. The second feature allows us to use a transverse spin asymmetry to probe the chiral odd distribution amplitude of the photon.

L. Szymanowski

2009-07-02

263

Even-odd effects in Z and N distributions of fragments emitted at intermediate energies  

SciTech Connect

Even-odd effects in Z and N distributions of light fragments emitted at forward angles in nuclear collisions {sup 40}Ca + {sup 40}Ca, {sup 40}Ca + {sup 48}Ca, and {sup 48}Ca + {sup 48}Ca at 25 MeV/nucleon and identified in charge and mass with the Chimera multidetector have been analyzed. The amplitude of even-odd staggering effects seems to be related to the neutron to proton ratio N/Z of the entrance channels. A qualitative explanation of this effect, taking into account the deexcitation phase of primary excited fragments, is discussed.

Lombardo, I.; Lanzalone, G. [INFN-Laboratori Nazionali del Sud, Via S. Sofia, Catania (Italy); Facolta di Ingegneria ed Architettura, Universita' 'Kore'' di Enna, Enna (Italy); Agodi, C.; Amorini, F.; Anzalone, A.; Han, J.; Maiolino, C. [INFN-Laboratori Nazionali del Sud, Via S. Sofia, Catania (Italy); Auditore, L.; Loria, D.; Trifiro, A.; Trimarchi, M. [Dipartimento di Fisica, Universita di Messina and INFN-Gruppo Collegato, Messina (Italy); Berceanu, I. [Institute for Physics and Nuclear Engineering, Bucharest (Romania); Cardella, G.; De Filippo, E.; Pagano, A.; Papa, M.; Pirrone, S. [INFN-Sezione di Catania, Via S. Sofia, 95123 Catania (Italy); Cavallaro, S.; Porto, F.; Rizzo, F. [INFN-Laboratori Nazionali del Sud, Via S. Sofia, Catania (Italy); Dipartimento di Fisica e Astronomia, Universita di Catania, Via S. Sofia, Catania (Italy)

2011-08-15

264

No-go theorem for the classical Maxwell-Lorentz electrodynamics in odd-dimensional worlds  

NASA Astrophysics Data System (ADS)

If the conventional Maxwell-Lorentz formulation of classical electrodynamics is adopted in a flat spacetime of arbitrary odd dimension, then the retarded vector potential A? generated by a point charge turns out to be pure gauge, A?=???. By Gauss' law, the charge shows up as zero. The classical electromagnetic coupling is thus missing from odd-dimensional worlds. If the action is augmented by the addition of the Chern-Simons term, then the classical interaction picture in the three-dimensional world becomes nontrivial.

Chubykalo, A. E.; Espinoza, A.; Kosyakov, B. P.

2011-12-01

265

Reactions with pions and vector mesons in the sector of odd intrinsic parity  

NASA Astrophysics Data System (ADS)

In chiral perturbation theory, the leading-order contribution to reactions with pions in the sector of odd intrinsic parity is defined by the Wess-Zumino-Witten structure. This structure is supplemented by a simple vector-meson Lagrangian where the vector mesons are described by antisymmetric tensor fields. With the rho-omega-pion coupling as the only parameter in the sector of odd intrinsic parity, i.e. without additional contact terms, one can achieve a proper description of the pion transition form factor and the three-pion production in electron-positron collisions.

Terschlüsen, Carla; Strandberg, Bruno; Leupold, Stefan

2014-06-01

266

Odd-frequency density waves: Non-Fermi-liquid metals with an order parameter  

SciTech Connect

We consider states with a charge- or spin-density wave order parameter which is odd in frequency so that the order parameter vanishes at zero frequency and there is a conventional Fermi surface. Such states break translational symmetry and, therefore, are not conventional Fermi liquids. In the odd-frequency spin-density wave case, there are Goldstone bosons and the low-energy spectrum is manifestly different from that of a Fermi liquid. We discuss a simple model that gives rise to such ordered states. The frequency dependence of the gap leads to an unusual temperature dependence for various thermodynamic and transport properties, notably the resistivity.

Pivovarov, Eugene; Nayak, Chetan

2001-07-15

267

Critical point symmetries in boson-fermion systems. The case of shape transition in odd nuclei in a multi-orbit model  

E-print Network

We investigate phase transitions in boson-fermion systems. We propose an analytically solvable model (E(5/12)) to describe odd nuclei at the critical point in the transition from the spherical to $\\gamma$-unstable behaviour. In the model, a boson core described within the Bohr Hamiltonian interacts with an unpaired particle assumed to be moving in the three single particle orbitals j=1/2,3/2,5/2. Energy spectra and electromagnetic transitions at the critical point compare well with the results obtained within the Interacting Boson Fermion Model, with a boson-fermion Hamiltonian that describes the same physical situation.

C. E. Alonso; J. M. Arias; A. Vitturi

2007-01-08

268

Critical-Point Symmetries in Boson-Fermion Systems: The Case of Shape Transitions in Odd Nuclei in a Multiorbit Model  

SciTech Connect

We investigate phase transitions in boson-fermion systems. We propose an analytically solvable model [E(5/12)] to describe odd nuclei at the critical point in the transition from the spherical to {gamma}-unstable behavior. In the model, a boson core described within the Bohr Hamiltonian interacts with an unpaired particle assumed to be moving in the three single-particle orbitals j=1/2, 3/2, 5/2. Energy spectra and electromagnetic transitions at the critical point compare well with the results obtained within the interacting boson-fermion model, with a boson-fermion Hamiltonian that describes the same physical situation.

Alonso, C. E.; Arias, J. M. [Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Fisica, Universidad de Sevilla, Apartado 1065, 41080 Sevilla (Spain); Vitturi, A. [Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Fisica, Universidad de Sevilla, Apartado 1065, 41080 Sevilla (Spain); Dipartimento di Fisica Galileo Galilei and INFN, Via Marzolo 8, 35131 Padova (Italy)

2007-02-02

269

Copyright Prof. Nalini Ravishanker, University of Connecticut Chapter 18 Comparisons of Proportions or Odds  

E-print Network

of Odds Enter data into Minitab as follows: Treatment Cold Count C Yes 302 C No 105 Placebo Yes 335 Binary Logistic Regression. In Response window, enter C2 and in Frequency window, enter C3. In Model window, enter C1. In Factors window, enter C1, and click OK. Binary Logistic Regression: Cold versus

Ravishanker, Nalini

270

SOME REGULARITIES OF THE MAGNETIC MOMENT DISTRIBUTION OF ODD-A NUCLEI  

Microsoft Academic Search

Some systematic features of the magnetic moment distribution of odd-A ; nuclei are established and theoretical explanation for them is given. The ; explanation suggested is based on the idea of quenching of the intrinsic magnetic ; moments of nucleons in nuclei. This idea was created independently by several ; investigators many years ago and was re-examined in detail recently.

Y. Bow

1963-01-01

271

Some Regularities of the Magnetic Moment Distribution of Odd-A Nuclei  

Microsoft Academic Search

Some systematic features of the magnetic moment distribution of odd-A nuclei are established and theoretical explanation for them is given. The explanation suggested here is based on the idea of quenching of the intrinsic magnetic moments of nucleons in nuclei. This idea was created independently by several investigators many years ago and has been re-examined in detail recently. Essentially all

Y. F. Bow

1963-01-01

272

Estimating the odds ratio when exposure has a limit of detection  

E-print Network

, epidemiologic methods, limit of detection, statistical method Introduction In epidemiologic research, emphasis Lei Nie3 and Enrique F Schisterman4 Accepted 6 July 2009 Background In epidemiologic research, little of detection (LOD). Methods We calculate the odds of anti-HIV therapy naivete´ in 45 HIV- infected men

Cole, Stephen R.

273

Mother-Teacher Agreement on Preschoolers' Symptoms of ODD and CD: Does Context Matter?  

ERIC Educational Resources Information Center

The aims of this study were to examine mother-teacher agreement on oppositional defiant disorder (ODD) and conduct disorder (CD) symptoms and diagnoses in preschool children; to determine if context is a source of disagreement; and to explore if sex, referral status, and age moderated agreement rates. Participants included 158 male and 139 female…

Strickland, Jennifer; Hopkins, Joyce; Keenan, Kate

2012-01-01

274

Nuclear spin-orbit interaction and T-odd angular correlations in ternary fission  

E-print Network

T-odd angular correlations in ternary fission of 233-U and 235-U nuclei by slow polarized neutrons are not related to TRI (time reversal invariance) violation, but are caused by an effective spin-orbit interaction in the final state.

Barabanov, A L

2014-01-01

275

Nuclear spin-orbit interaction and T-odd angular correlations in ternary fission  

E-print Network

T-odd angular correlations in ternary fission of 233-U and 235-U nuclei by slow polarized neutrons are not related to TRI (time reversal invariance) violation, but are caused by an effective spin-orbit interaction in the final state.

A. L. Barabanov

2014-07-08

276

Home Previous Page Odd power: New microbe strain makes more electricity, faster  

E-print Network

Home Previous Page Odd power: New microbe strain makes more electricity, faster Author: Newswise Issue: 8/2009 In their most recent experiments with Geobacter, the sediment-loving microbe whose-Amherst researchers adapted the microbe's environment, which pushed it to adapt more efficient electric current

Lovley, Derek

277

Why the Faulhaber Polynomials Are Sums of Even or Odd Powers of (n + 1/2)  

ERIC Educational Resources Information Center

By extending Faulhaber's polynomial to negative values of n, the sum of the p'th powers of the first n integers is seen to be an even or odd polynomial in (n + 1/2) and therefore expressible in terms of the sum of the first n integers.

Hersh, Reuben

2012-01-01

278

Neither Even nor Odd: Sixth Grade Students' Dilemmas Regarding the Parity of Zero  

ERIC Educational Resources Information Center

This study investigates two sixth grade students' dilemmas regarding the parity of zero. Both students originally claimed that zero was neither even nor odd. Interviews revealed a conflict between students' formal definitions of even numbers and their concept images of even numbers, zero, and division. These images were supported by practically…

Levenson, Esther; Tsamir, Pessia; Tirosh, Dina

2007-01-01

279

Chirality in odd-$A$ nucleus $^{135}$Nd in particle rotor model  

E-print Network

A particle rotor model is developed which couples several valence protons and neutrons to a rigid triaxial rotor core. It is applied to investigating the chirality in odd-$A$ nucleus $^{135}$Nd with $\\pi h_{11/2}^2\\otimes\

B. Qi; S. Q. Zhang; J. Meng; S. Y. Wang; S. Frauendorf

2008-12-25

280

UNIFORM RECTIFIABILITY, CALDERON-ZYGMUND OPERATORS WITH ODD KERNEL, AND QUASIORTHOGONALITY  

E-print Network

UNIFORM RECTIFIABILITY, CALDER´ON-ZYGMUND OPERATORS WITH ODD KERNEL, AND QUASIORTHOGONALITY XAVIER TOLSA Abstract. In this paper we study some questions in connection with uniform rectifiability and the L2 boundedness of Calder´on-Zygmund operators. We show that uniform rectifiability can

Tolsa, Xavier

281

Improving the Odds for Adolescents: State Policies That Support Adolescent Health and Well-Being. Report  

ERIC Educational Resources Information Center

For policymakers, adolescence presents an invaluable opportunity to ensure that all young people can access the high-quality services and supports they need to improve their odds of becoming successful, healthy, productive adults. At an historic moment when the provisions and breadth of health care reform are under vigorous debate, it is important…

Schwarz, Susan Wile; Aratani, Yumiko

2011-01-01

282

High Schools in California That Are Beating the Odds and How They Are Doing It  

ERIC Educational Resources Information Center

The purpose of this phenomenological study was to determine the common programs and practices that Beating the Odds (BTO) high schools in California are using to achieve high graduation rates. More specifically, this study identifies specific programs and practices that the high schools are using to address at-risk student behaviors as well as…

Viloria, Jason

2012-01-01

283

Why the effect of prior odds should accompany the likelihood ratio when reporting DNA evidence  

E-print Network

Why the effect of prior odds should accompany the likelihood ratio when reporting DNA evidence.sjerps@nfi.minjus.nl Abstract The introduction of DNA evidence has transformed human individu- alisation in criminal litigation a frequency estimate to be reported. 2 #12;1 Introduction DNA evidence plays an increasingly important role

Meester, Ronald

284

CoSMoS simulation experiment reproducibility and the ODD protocol  

E-print Network

, and arguing fit for purpose, a scientifically rigorous simulation of a complex real world system. The ODD complex, buggy, and difficult to relate to the real-world system. A simulation needs to be both of and confidence in the simulations. 1 Introduction Computer-based simulation is a key tool in many fields

Stepney, Susan

285

Drosophila Midgut Morphogenesis Requires the Function of the Segmentation Gene odd-paired  

Microsoft Academic Search

Development of the Drosophila embryonic midgut is dependent on a number of genes, including tinman and bagpipe, which are required for formation of the visceral mesoderm, and the homeotic genes and their targets, which act locally in the visceral mesoderm to direct formation of specific midgut constrictions. Here we report the identification and characterization of another gene, odd-paired (opa), required

Daniel M. Cimbora; Shigeru Sakonju

1995-01-01

286

Gathering an even number of robots in an odd ring without global multiplicity detection  

E-print Network

Gathering an even number of robots in an odd ring without global multiplicity detection Sayaka for an even number of robots in a ring-shaped network that allows symmetric but not periodic configurations as initial configurations, yet uses only local weak multiplicity detection. Robots are assumed

Paris-Sud XI, Université de

287

Even-odd oscillation and valley polarization of transmission between multilayer graphenes  

SciTech Connect

Electron transmission through a boundary between multi-layer graphenes with Bernal stacking consisting of different number of layers is studied. A valley polarization in transmission probability appears as in monolayer and bilayer systems, exhibits considerable oscillation depending of even or odd layer numbers, and its amplitude gradually decreases with the layer number. The total transmission shows oscillation with much smaller amplitude.

Nakanishi, Takeshi [Nanosystem Research Institute, AIST, 1-1-1 Umezono, Tsukuba 305-8568 (Japan); Ando, Tsuneya [Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551 (Japan)

2013-12-04

288

Abundances of Vanadium and Bromine in 3 Cen A: Additional Odd-Z Anomalies  

E-print Network

We report abundance excesses of 1.2 and 2.6 dex, respectively, for vanadium and bromine in the hot, peculiar star 3 Cen A. Abundances for these two odd-Z elements have not been previously reported for this star. Taken with previous work, they strengthen the case of the origin of the abundance peculiarities by diffusion.

C. R. Cowley; G. M. Wahlgren

2005-12-12

289

Abundances of Vanadium and Bromine in 3 Cen A: Additional Odd-Z Anomalies  

E-print Network

We report abundance excesses of 1.2 and 2.6 dex, respectively, for vanadium and bromine in the hot, peculiar star 3 Cen A. Abundances for these two odd-Z elements have not been previously reported for this star. Taken with previous work, they strengthen the case of the origin of the abundance peculiarities by diffusion.

Cowley, C R

2005-01-01

290

Observation of the naive-T-odd Sivers effect in deep-inelastic scattering.  

PubMed

Azimuthal single-spin asymmetries of leptoproduced pions and charged kaons were measured on a transversely polarized hydrogen target. Evidence for a naive-T-odd, transverse-momentum-dependent parton distribution function is deduced from nonvanishing Sivers effects for pi(+), pi(0), and K(+/-), as well as in the difference of the pi(+) and pi(-) cross sections. PMID:19905623

Airapetian, A; Akopov, N; Akopov, Z; Aschenauer, E C; Augustyniak, W; Avetissian, A; Avetisyan, E; Bacchetta, A; Ball, B; Bianchi, N; Blok, H P; Böttcher, H; Bonomo, C; Borissov, A; Bryzgalov, V; Burns, J; Capiluppi, M; Capitani, G P; Cisbani, E; Ciullo, G; Contalbrigo, M; Dalpiaz, P F; Deconinck, W; De Leo, R; De Nardo, L; De Sanctis, E; Diefenthaler, M; Di Nezza, P; Dreschler, J; Düren, M; Ehrenfried, M; Elbakian, G; Ellinghaus, F; Elschenbroich, U; Fabbri, R; Fantoni, A; Felawka, L; Frullani, S; Gabbert, D; Gapienko, G; Gapienko, V; Garibaldi, F; Gharibyan, V; Giordano, F; Gliske, S; Hadjidakis, C; Hartig, M; Hasch, D; Hill, G; Hillenbrand, A; Hoek, M; Holler, Y; Hristova, I; Imazu, Y; Ivanilov, A; Jackson, H E; Jo, H S; Joosten, S; Kaiser, R; Keri, T; Kinney, E; Kisselev, A; Korotkov, V; Kozlov, V; Kravchenko, P; Lagamba, L; Lamb, R; Lapikás, L; Lehmann, I; Lenisa, P; Linden-Levy, L A; López Ruiz, A; Lorenzon, W; Lu, X-G; Lu, X-R; Ma, B-Q; Mahon, D; Makins, N C R; Manaenkov, S I; Manfré, L; Mao, Y; Marianski, B; Martinez de la Ossa, A; Marukyan, H; Miller, C A; Miyachi, Y; Movsisyan, A; Murray, M; Mussgiller, A; Nappi, E; Naryshkin, Y; Nass, A; Negodaev, M; Nowak, W-D; Pappalardo, L L; Perez-Benito, R; Reimer, P E; Reolon, A R; Riedl, C; Rith, K; Rosner, G; Rostomyan, A; Rubin, J; Ryckbosch, D; Salomatin, Y; Sanftl, F; Schäfer, A; Schnell, G; Schüler, K P; Seitz, B; Shibata, T-A; Shutov, V; Stancari, M; Statera, M; Steijger, J J M; Stenzel, H; Stewart, J; Stinzing, F; Taroian, S; Terkulov, A; Trzcinski, A; Tytgat, M; Vandenbroucke, A; van der Nat, P B; Van Haarlem, Y; Van Hulse, C; Varanda, M; Veretennikov, D; Vikhrov, V; Vilardi, I; Vogel, C; Wang, S; Yaschenko, S; Ye, H; Ye, Z; Yen, S; Yu, W; Zeiler, D; Zihlmann, B; Zupranski, P

2009-10-01

291

Schoenberg's polynomial B-splines of odd degrees: A brief review of application  

NASA Astrophysics Data System (ADS)

A brief overview of applications of Schoenberg's polynomial B-splines of odd degrees in mathematical statistics, computational mathematics, and statistical radio engineering is provided. Exact formulas for the found Schoenberg B-spline of 15th degree are presented. High-quality approximations of smooth functions with an infinite Fourier transform by functions with a finite Fourier transform are found.

Alekseev, V. G.; Sukhodoev, V. A.

2012-10-01

292

Computing Estimates in the Proportional Odds Model David R. Hunter1  

E-print Network

present here an alternative to the standard Newton-Raphson method of maximum likelihood estimation. Our accelerated counterpart outperform Newton- Raphson by more than two orders of magnitude. Key Words: majorization, proportional odds, Newton-Raphson, quasi-Newton, survival analysis. 1 Introduction In a survival

Hunter, David

293

Partial proportional odds model-An alternate choice for analyzing pedestrian crash injury severities.  

PubMed

The conventional methods for crash injury severity analyses include either treating the severity data as ordered (e.g. ordered logit/probit models) or non-ordered (e.g. multinomial models). The ordered models require the data to meet proportional odds assumption, according to which the predictors can only have the same effect on different levels of the dependent variable, which is often not the case with crash injury severities. On the other hand, non-ordered analyses completely ignore the inherent hierarchical nature of crash injury severities. Therefore, treating the crash severity data as either ordered or non-ordered results in violating some of the key principles. To address these concerns, this paper explores the application of a partial proportional odds (PPO) model to bridge the gap between ordered and non-ordered severity modeling frameworks. The PPO model allows the covariates that meet the proportional odds assumption to affect different crash severity levels with the same magnitude; whereas the covariates that do not meet the proportional odds assumption can have different effects on different severity levels. This study is based on a five-year (2008-2012) national pedestrian safety dataset for Switzerland. A comparison between the application of PPO models, ordered logit models, and multinomial logit models for pedestrian injury severity evaluation is also included here. The study shows that PPO models outperform the other models considered based on different evaluation criteria. Hence, it is a viable method for analyzing pedestrian crash injury severities. PMID:25113015

Sasidharan, Lekshmi; Menéndez, Mónica

2014-11-01

294

Parent Training for Families of Children with Comorbid ADHD and ODD  

ERIC Educational Resources Information Center

This paper presents the details of a parent training program for families of children with comorbid ADHD/ODD. The goal of the training is to develop specific parenting skills that promote pro-social compliance and decrease disruptive child behavior. There are two parts to the parent training program. First, a theoretical framework of interactions…

Danforth, Jeffrey S.

2006-01-01

295

Balloons, CutEdges, Matchings, and Total Domination in Regular Graphs of Odd Degree  

E-print Network

Balloons, Cut­Edges, Matchings, and Total Domination in Regular Graphs of Odd Degree Suil O # , Douglas B. West + November 9, 2008; revised June 2, 2009 Abstract A balloon in a graph G is a maximal 2­edge­connected subgraph incident to exactly one cut­edge of G. Let b(G) be the number of balloons, let

West, Douglas B.

296

Balloons, Cut-Edges, Matchings, and Total Domination in Regular Graphs of Odd Degree  

E-print Network

Balloons, Cut-Edges, Matchings, and Total Domination in Regular Graphs of Odd Degree Suil O , Douglas B. West November 16, 2008 Abstract A balloon in a graph G is a maximal 2-edge-connected subgraph incident to exactly one cut-edge of G. Let b(G) be the number of balloons, let c(G) be the number of cut

O, Suil

297

An Odds Ratio Approach for Assessing Differential Distractor Functioning Effects under the Nominal Response Model  

ERIC Educational Resources Information Center

Investigations of differential distractor functioning (DDF) can provide valuable information concerning the location and possible causes of measurement invariance within a multiple-choice item. In this article, I propose an odds ratio estimator of the DDF effect as modeled under the nominal response model. In addition, I propose a simultaneous…

Penfield, Randall D.

2008-01-01

298

Anger and Irritability Symptoms among Youth with ODD: Cross-Informant versus Source-Exclusive Syndromes  

ERIC Educational Resources Information Center

We examined differences in co-occurring psychological symptoms and background characteristics among clinically referred youth with oppositional defiant disorder (ODD) with and without anger/irritability symptoms (AIS) according to either parent or teacher (source-exclusive) and both informants (cross-informant), youth with noncompliant symptoms…

Gadow, Kenneth D.; Drabick, Deborah A. G.

2012-01-01

299

Executive Functioning Deficits in Relation to Symptoms of ADHD and/or ODD in Preschool Children  

ERIC Educational Resources Information Center

The present study investigated the relation between executive functioning and symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD) and Oppositional Defiant Disorder (ODD) in children aged 4-6. A population-based sample (n = 201) was used and laboratory measures of inhibition, working memory and verbal fluency and teacher ratings of…

Thorell, Lisa B.; Wahlstedt, Cecilia

2006-01-01

300

Building and Solving Odd-One-Out Classification Problems: A Systematic Approach  

ERIC Educational Resources Information Center

Classification problems ("find the odd-one-out") are frequently used as tests of inductive reasoning to evaluate human or animal intelligence. This paper introduces a systematic method for building the set of all possible classification problems, followed by a simple algorithm for solving the problems of the R-ASCM, a psychometric test derived…

Ruiz, Philippe E.

2011-01-01

301

Pulse Train Generator for Producing Odd or Even Number of Pulses with Variable Pulse Spacing.  

National Technical Information Service (NTIS)

The pulse train generator is for use in computer circuitry. In the basic embodiment there is a plurality of monostable multivibrators and an odd number of pulses are generated for each trigger signal. The structure in a second embodiment is the same in th...

M. F. Williams, A. F. Thornhill

1965-01-01

302

Hindered Gamow-Teller Decay to the Odd-Odd N=Z Ga62: Absence of Proton-Neutron T =0 Condensate in A =62  

NASA Astrophysics Data System (ADS)

Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, J?=0+ ground state of Ge62 into excited states of the odd-odd N =Z nucleus Ga62. The experiment is performed at GSI Helmholtzzentrum für Shwerionenforshung with the Ge62 ions selected by the fragment separator and implanted in a stack of Si-strip detectors, surrounded by the RISING Ge array. A half-life of T1/2=82.9(14) ms is measured for the Ge62 ground state. Six excited states of Ga62, populated below 2.5 MeV through Gamow-Teller transitions, are identified. Individual Gamow-Teller transition strengths agree well with theoretical predictions of the interacting shell model and the quasiparticle random phase approximation. The absence of any sizable low-lying Gamow-Teller strength in the reported beta-decay experiment supports the hypothesis of a negligible role of coherent T =0 proton-neutron correlations in Ga62.

Grodner, E.; Gadea, A.; Sarriguren, P.; Lenzi, S. M.; GreÂbcedilosz, J.; Valiente-Dobón, J. J.; Algora, A.; Górska, M.; Regan, P. H.; Rudolph, D.; de Angelis, G.; Agramunt, J.; Alkhomashi, N.; Amon Susam, L.; Bazzacco, D.; Benlliure, J.; Benzoni, G.; Boutachkov, P.; Bracco, A.; Caceres, L.; Cakirli, R. B.; Crespi, F. C. L.; Domingo-Pardo, C.; Doncel, M.; Dombrádi, Zs.; Doornenbal, P.; Farnea, E.; Ganio?lu, E.; Gelletly, W.; Gerl, J.; Gottardo, A.; Hüyük, T.; Kurz, N.; Leoni, S.; Mengoni, D.; Molina, F.; Morales, A. I.; Orlandi, R.; Oktem, Y.; Page, R. D.; Perez, D.; Pietri, S.; Podolyák, Zs.; Poves, A.; Quintana, B.; Rinta-Antila, S.; Rubio, B.; Nara Singh, B. S.; Steer, A. N.; Verma, S.; Wadsworth, R.; Wieland, O.; Wollersheim, H. J.

2014-08-01

303

Hindered Gamow-Teller decay to the odd-odd N=Z (62)Ga: absence of proton-neutron T=0 condensate in A=62.  

PubMed

Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, J(?)=0+ ground state of (62)Ge into excited states of the odd-odd N=Z nucleus (62)Ga. The experiment is performed at GSI Helmholtzzentrum für Shwerionenforshung with the (62)Ge ions selected by the fragment separator and implanted in a stack of Si-strip detectors, surrounded by the RISING Ge array. A half-life of T1/2=82.9(14)??ms is measured for the (62)Ge ground state. Six excited states of (62)Ga, populated below 2.5 MeV through Gamow-Teller transitions, are identified. Individual Gamow-Teller transition strengths agree well with theoretical predictions of the interacting shell model and the quasiparticle random phase approximation. The absence of any sizable low-lying Gamow-Teller strength in the reported beta-decay experiment supports the hypothesis of a negligible role of coherent T=0 proton-neutron correlations in (62)Ga. PMID:25215980

Grodner, E; Gadea, A; Sarriguren, P; Lenzi, S M; Grebosz, J; Valiente-Dobón, J J; Algora, A; Górska, M; Regan, P H; Rudolph, D; de Angelis, G; Agramunt, J; Alkhomashi, N; Amon Susam, L; Bazzacco, D; Benlliure, J; Benzoni, G; Boutachkov, P; Bracco, A; Caceres, L; Cakirli, R B; Crespi, F C L; Domingo-Pardo, C; Doncel, M; Dombrádi, Zs; Doornenbal, P; Farnea, E; Ganio?lu, E; Gelletly, W; Gerl, J; Gottardo, A; Hüyük, T; Kurz, N; Leoni, S; Mengoni, D; Molina, F; Morales, A I; Orlandi, R; Oktem, Y; Page, R D; Perez, D; Pietri, S; Podolyák, Zs; Poves, A; Quintana, B; Rinta-Antila, S; Rubio, B; Nara Singh, B S; Steer, A N; Verma, S; Wadsworth, R; Wieland, O; Wollersheim, H J

2014-08-29

304

Degradation of carbohydrates added to Martian soil, shown by the Viking mission, has two interpretations. Either living  

E-print Network

of xylose for Martian life detection. In 1975 NASA carried out a mission to mars for scientific researchDegradation of carbohydrates added to Martian soil, shown by the Viking mission, has two for these findings. The soil of mars may indeed carry microorganisms. Another alternative is that, mars may

Walker, Lawrence R.

305

While the organization and patterns of modulation of cutaneous reflexes have been shown to be quite similar  

E-print Network

motor tasks. For example in leg muscles, task dependency of cutaneous reflexes has been shown at similar), cycling vs. static contraction (Zehr et al. 2001) and stable vs. unstable standing (Burke et al. 1991). The main observation from these experiments is that cutaneous reflexes in leg muscles are very sensitive

Zehr, Paul

306

All messages shown are encapsulated as TASK_DATA packets processed by TaskApp layer only.  

E-print Network

All messages shown are encapsulated as TASK_DATA packets processed by TaskApp layer only. Recovery power Hello messages are an overkill! · Accommodation of Sleep Wake cycle scheduling · Links are very that becomes unavailable? Sensor Network Aware Instantiation ·Sleep wake (SW) schedules are communicated

Little, Thomas

307

Abstract It has previously been shown that pigeons can shift attention between parts and wholes of complex stim-  

E-print Network

Abstract It has previously been shown that pigeons can shift attention between parts and wholes rate. Ex- periment 1 examined the possibility that pigeons can shift attention between local and global that pigeons, like humans, can display highly dynamic stimulus-driven shifts of local/global attention

Herbranson, Wally

308

Abstract We had previously shown that succinic acid production in a pfl ldhA double mutant strain of Escheri-  

E-print Network

succinic acid production. More reduced carbon substrate sorbitol was thus examined for the possibilityAbstract We had previously shown that succinic acid production in a pfl ldhA double mutant strain gene, produced a considerable amount of malic acid along with the desired product, succinic acid

309

We have previously shown how a genetic algo-rithm (GA) can be used to perform "data min-  

E-print Network

ABSTRACT We have previously shown how a genetic algo- rithm (GA) can be used to perform "data min to those that were "fixed" before the GA run. We report here on an extension of our previous work, substituting a genetic pro- gram (GP) for a GA. The GP could optimize data classification, as did the GA

310

Abstract We have shown that Werner syndrome (WRN) fibroblast cell lines are unusually sensitive to the DNA-  

E-print Network

disease whose phenotype mimics pre- mature aging. WRN patients develop a prematurely aged appearanceAbstract We have shown that Werner syndrome (WRN) fibroblast cell lines are unusually sensitive protein function. Introduction Werner syndrome (WRN; MIM 277700) is an uncommon autosomal recessive

Monnat, Ray

311

A close-up of the Sun (shown in ultraviolet light) reveals a mottled surface, bright flares,  

E-print Network

#12;#12;A close-up of the Sun (shown in ultraviolet light) reveals a mottled surface, bright flares, and tongues of hot gas leaping into space. Though they look like burns in the face of the Sun, sunspots circle in the center of the photo--allows scientists to see the solar wind streaming away from the Sun

Christian, Eric

312

Effects of Symptoms of ADHD, ODD, and Cognitive Functioning on Social Acceptance and the Positive Illusory Bias in Children  

ERIC Educational Resources Information Center

Objective: To examine the effects of symptoms of ADHD and ODD and cognitive functioning on social acceptance and positive bias in children. Method: The sample consisted of 86 children (49 girls) between 7 and 13 years old, recruited to reflect a wide range of ADHD symptoms. Parents and teachers reported on ADHD and ODD symptoms and social…

Scholtens, Sara; Diamantopoulou, Sofia; Tillman, Carin M.; Rydell, Ann-Margret

2012-01-01

313

Ab initio Dirac-Hartree-Fock calculations of chemical properties and PT-odd effects in thallium fluoride  

E-print Network

was obtained by Wu et al. 4 , who observed that nuclear decay is a P-odd process. This led to an extensive to account for the phenomena. Of these, the first success- ful description of P-odd processes was supplied formulated by Glashow 6 , Weinberg 7 , and Salam 8 . Consequently, we now have a complete and renormalizable

Chantler, Christopher T.

314

Bid-ask spreads and the avoidance of odd-eighth quotes on Nasdaq: An examination of exchange listings  

Microsoft Academic Search

This paper examines 472 securities that were listed on Nasdaq and moved to the NYSE or Amex. When Nasdaq market makers avoid odd-eighth quotes, bid-ask spreads are large and decline dramatically with exchange listing. When market makers use both odd and even eighths, spreads are smaller and decline only slightly with exchange listing. The large spreads observed when Nasdaq market

Michael J. Barclay

1997-01-01

315

Further Evidence of the Reliability and Validity of DSM-IV ODD and CD in Preschool Children  

ERIC Educational Resources Information Center

Objective: To test the reliability and validity of DSM-IV oppositional defiant and conduct disorders (ODD and CD) and symptoms using the Kiddie Disruptive Behavior Disorders Schedule and generate data on the manifestation of symptoms of ODD and CD in 3- to 5-year-old children. Method: One hundred twenty-three consecutive referrals to a child and…

Keenan, Kate; Wakschlag, Lauren S.; Danis, Barbara; Hill, Carri; Humphries, Marisha; Duax, Jeanne; Donald, Radiah

2007-01-01

316

When Fair Betting Odds Are Not Degrees of Belief T. Seidenfeld; M. J. Schervish; J. B. Kadane  

E-print Network

When Fair Betting Odds Are Not Degrees of Belief T. Seidenfeld; M. J. Schervish; J. B. Kadane PSA@jstor.org. http://www.jstor.org Tue Mar 4 10:42:43 2008 #12;When Fair Betting Odds are not Degrees of Belief T is, assumptions about the combination of wagers), your betting policy is consistent (coherent) only

Spirtes, Peter

317

Co-Occurring ODD and GAD Symptom Groups: Source-Specific Syndromes and Cross-Informant Comorbidity  

Microsoft Academic Search

Despite important clinical and nosological implications, the comorbidity of oppositional defiant disorder (ODD) and generalized anxiety disorder (GAD) has received little attention. A clinic-based sample of 243 boys (ages 6–10 years), their parents, and teachers participated in an evaluation that involved assessments of behavioral, academic, and family functioning. ODD and GAD symptom groups were defined using various combinations of mother

Deborah A. G. Drabick; Kenneth D. Gadow; Jan Loney

2008-01-01

318

Calculation of P, T-odd effects in 205TlF including electron correlation.  

PubMed

A method and codes for two-step correlation calculations of heavy-atom molecules have been developed, employing the generalized relativistic effective core potential (GRECP) and relativistic coupled cluster (RCC) methods at the first step, followed by nonvariational one-center restoration of proper four-component spinors in the heavy cores. Electron correlation is included for the first time in an ab initio calculation of the interaction of the permanent P,T-odd proton electric dipole moments with the internal electromagnetic field in a molecule. Inclusion of electron correlation by GRECP/RCC has a major effect on the P,T-odd parameters of 205TlF, decreasing M by 17% and X by 22%. PMID:11863891

Petrov, A N; Mosyagin, N S; Isaev, T A; Titov, A V; Ezhov, V F; Eliav, E; Kaldor, U

2002-02-18

319

Magnetic moments of $^{33}$Mg in time-odd relativistic mean field approach  

E-print Network

The configuration-fixed deformation constrained relativistic mean field approach with time-odd component has been applied to investigate the ground-state properties of $^{33}$Mg with effective interaction PK1. The ground state of $^{33}$Mg has been found to be prolate deformed, $\\beta_2=0.23$, with the odd neutron in $1/2[330]$ orbital and the energy -251.85 MeV which is close to the data -252.06 MeV. The magnetic moment $- 0.9134 \\mu_\\mathrm{N}$ is obtained with the effective electromagnetic current which well reproduces the data $- 0.7456 \\mu_\\mathrm{N}$ self-consistently without introducing any parameter. The energy splittings of time reversal conjugate states, the neutron current, the energy contribution from the nuclear magnetic potential, and the effect of core polarization are discussed in detail.

Jian Li; Ying Zhang; Jiang-ming Yao; Jie Meng

2009-10-21

320

A model for quasi-parity-doublet spectra in odd-mass nuclei  

NASA Astrophysics Data System (ADS)

A model of a quadrupole-octupole vibrating and rotating core plus a particle is proposed to describe and classify the quasi-parity-doublet spectra in odd-mass nuclei. The yrast levels are described as low-energy rotation-vibration modes built on the ground state. The non-yrast split parity-doublet sequences are considered as higher-energy rotation-vibration modes coupled to one-quasi-particle states. The even-even core is considered within the model of a coherent quadrupole-octupole motion, while the odd nucleon is described within the reflection-asymmetric deformed shell model with pairing interaction. The Coriolis decoupling and K-mixing interactions are calculated microscopically through a parity projection of the single-particle wave function. The unified model scheme was tested on the yrast and non-yrast quasi-parity-doublet spectra in the nuclei 223Ra and 221Fr.

Minkov, Nikolay

2013-05-01

321

Nuclear forces in the parity odd sector and the LS forces  

E-print Network

In this paper, we report our first attempt at determining NN potentials in the parity odd sector including the spin-orbit force in lattice QCD, employing the method to extract successfully parity even NN potentials from Nambu-Bethe-Salpeter (NBS) wave functions through the Schr\\"odinger equation. Using Nf = 2 CP-PACS gauge configurations on a 16^3 x 32 lattice at a = 0.16 fm and m_\\pi \\cong 1.1 GeV, we calculate central, tensor and spin-orbit potentials in the parity odd sector. Although statistical errors are still large, we observe that the qualitative features of these potentials roughly agree with those of phenomenological potentials.

Keiko Murano; for the HALQCD Collaboration

2011-12-09

322

T-Odd Asymmetry in W +jet Events at the LHC  

NASA Astrophysics Data System (ADS)

W bosons produced at high transverse momentum in hadron collisions can have polarization along the direction perpendicular to the production plane, which is odd under naïve T reversal where both the three-momenta and angular momenta are reversed. Perturbative QCD predicts nonzero polarization at the one-loop level, which can be measured as parity-odd components in the angular distribution of charged leptons from the decay of W bosons. We perform a detector-level simulation with the generator MadGraph5_aMC@NLO, and demonstrate that the asymmetry can be observed at the 8 TeV LHC with 20 fb-1 of data. If confirmed, it will be the first experimental measurement of the sign of the imaginary part of one-loop QCD amplitudes.

Frederix, Rikkert; Hagiwara, Kaoru; Yamada, Toshifumi; Yokoya, Hiroshi

2014-10-01

323

Encouraging Physical Activity in Teens Can technology help reduce barriers to physical activity in adolescent girls?  

E-print Network

Encouraging Physical Activity in Teens Can technology help reduce barriers to physical activity Indiana University Bloomington, Indiana, USA Abstract--Physical activity levels of girls decline States. Research has shown that social support is positively correlated with physical activity levels

Connelly, Kay

324

Core polarization and magnetic moment of some odd-mass nuclei around N = 50  

Microsoft Academic Search

The effect of core polarization on the magnetic moment is studied for odd-mass nuclei around N = 50: 85, 87Kr, 87, 89Sr, 91Zr and 89Y. The calculation is done in the framework of the modified Tamm-Dancoff approximation (MTDA). The ground-state wave function is calculated using the configuration space of pˇf$˘and sdg$˘shells. The core polarization correction to the magnetic moment is

J. Nag; M. K. Pal

1981-01-01

325

Effects of Velocity-Dependent Force on the Magnetic Form Factors of Odd-Z Nuclei  

Microsoft Academic Search

We investigate the effects of the velocity-dependent force on the magnetic form factors and magnetic moments of odd-Z nuclei. The form factors are calculated with the harmonic-oscillator wavefunctions. It is found that the contributions of the velocity-dependent force manifest themselves in the very large momentum transfer region (q ? 4fm-1). In the low and medium q region the contributions of

Tie-Kuang Dong; Zhong-Zhou Ren

2008-01-01

326

A model of odd nitrogen in the aurorally dosed nighttime terrestrial thermosphere  

Microsoft Academic Search

A model of the production and loss of odd nitrogen species (mainly, N(4S), N(2D), NO, and NO+) and the enhanced vibration-rotation band emission from NO in the infrared from the aurorally dosed terrestrial nighttime thermosphere is described. This model is assessed by analyzing the observations of the fundamental (Deltav = -1, ~5.3 mum) and overtone (Deltav = -2, ~2.7 mum)

H. Dothe; J. W. Duff; R. D. Sharma; N. B. Wheeler

2002-01-01

327

A model of odd nitrogen in the aurorally dosed nighttime terrestrial thermosphere  

Microsoft Academic Search

A model of the production and loss of odd nitrogen species (mainly, N(4S), N(2D), NO, and NO+) and the enhanced vibration-rotation band emission from NO in the infrared from the aurorally dosed terrestrial nighttime thermosphere is described. This model is assessed by analyzing the observations of the fundamental (?v = ?1, ?5.3 ?m) and overtone (?v = ?2, ?2.7 ?m)

H. Dothe; J. W. Duff; R. D. Sharma; N. B. Wheeler

2002-01-01

328

Legendre's Law of Quadratic Reciprocitya Let p and q be two odd primes.  

E-print Network

on p. 469). 5. (2 | m) = (-1)(m2 -1)/8 .a 6. If a and m are both odd, then (a | m)(m | a) = (-1)(a-1)(m|101) = -(-1)(44)(100)/4 (101|45) = -(101|45) = -(11|45) = -(-1)(10)(44)/4 (45|11) = -(45|11) = -(1|11) = -(11 Proposition 10.3 in the Textbook Theorem 66 The group of set (n) under multiplication mod n has a primitive

Lyuu, Yuh-Dauh

329

Legendre's Law of Quadratic Reciprocitya Let p and q be two odd primes.  

E-print Network

. If a and m are both odd, then (a | m)(m | a) = (-1)(a-1)(m-1)/4 . aBy Lemma 64 (p. 486) and some parity|45) = -(11|45) = -(-1)(10)(44)/4 (45|11) = -(45|11) = -(1|11) = -1. c 2008 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 497 #12;A Result Generalizing Proposition 10.3 in the Textbook Theorem 66

Lyuu, Yuh-Dauh

330

Magnetic response of odd-frequency s-wave Cooper pairs in a superfluid proximity system.  

PubMed

We investigate the magnetic response of a dirty-normal-Fermi-liquid-spin-triplet-superfluid proximity system consisting of liquid 3He and aerogel. In contrast to bulk superfluids, Pauli spin susceptibility in the proximity system exceeds its normal-state value locally around the interface. This enhanced Pauli paramagnetism originates from odd-frequency s-wave pairing arising due to spatial inhomogeneity. A characteristic observable signature of the paramagnetic effect can be found in the spin susceptibility temperature dependence. PMID:23679740

Higashitani, S; Takeuchi, H; Matsuo, S; Nagato, Y; Nagai, K

2013-04-26

331

Test of the Universality of Naive-time-reversal-odd Fragmentation Functions  

E-print Network

We investigate the ''spontaneous'' hyperon transverse polarization in $e^+e^-$ annihilation and semi-inclusive deep inelastic scattering processes as a test of the universality of the naive-time-reversal-odd transverse momentum dependent fragmentation functions. We find that universality implies definite sign relations among various observables. This provides a unique opportunity to study initial/final state interaction effects in the fragmentation process and test the associated factorization.

Daniel Boer; Zhong-Bo Kang; Werner Vogelsang; Feng Yuan

2010-08-20

332

Odd and even sums of generalized Fibonacci numbers by matrix methods  

NASA Astrophysics Data System (ADS)

For integers A and B, and positive integers n, we define two generalized Fibonacci sequence {gn} and {hn}, respectively, by the recurrence relations gn+1 = Agn+gn-1 and hn+1 = hn+Bhn-1 where g0 = h0 = 0, g1 = h1 = 1. Using a matrix approach, we obtained the odd sum and even sum of the two sequences for all values of A and B.

Ho, C. K.; Chong, Chin-Yoon

2014-06-01

333

Balloons, Cut-Edges, Matchings, and Total Domination in Regular Graphs of Odd Degree  

E-print Network

Balloons, Cut-Edges, Matchings, and Total Domination in Regular Graphs of Odd Degree Suil O , Douglas B. West November 9, 2008; revised June 2, 2009 Abstract A balloon in a graph G is a maximal 2-edge-connected subgraph incident to exactly one cut-edge of G. Let b(G) be the number of balloons, let c(G) be the number

West, Douglas B.

334

Entrance-channel effects in odd-Z tranactinide compound nucleus reactions  

SciTech Connect

Swiatecki, Siwek-Wilczynska, and Wilczynski's 'Fusion By Diffusion' description [1] of transactinide (TAN) compound nucleus (CN) formation utilizes a three-step model. The first step is the 'sticking', or capture, which can be calculated relatively accurately. The second step is the probability for the formation of a CN by 'diffusion' analogous to that of Brownian motion. Lastly, there exists the probability of the CN 'surviving' deexcitation by neutron emission, which competes with fission and other de-excitation modes. This model predicts and reproduces cross sections typically within a factor of two. Producing the same CN with different projectile-target pairs is a very sensitive way to test entrance channel effects on heavy element production cross sections. If the same CN is produced at or near the same excitation energy the survival portion of the theory is nearly identical for the two reactions. This method can be used as a critical test of the novel 'diffusion' portion of the model. The reactions producing odd-Z TAN CN such as Db, Bh, Mt, and Rg (Z = 105, 107, 109, and 111, respectively) were first studied using even-Z projectiles on {sup 209}Bi targets (as opposed to odd-Z projectiles on {sup 208}Pb targets) because lower effective fissility [2] was expected to lead to larger cross sections. Many odd-Z projectile reactions producing odd-Z CN had not been studied in-depth until very recently. We have completed studies of these reaction pairs with the 88-Inch Cyclotron and the Berkeley Gas-Filled Separator (BGS) at the Lawrence Berkeley National Laboratory (LBNL), see Figure 1. Cross section ratios for several pairs of reactions will be presented and compared with theory.

Nelson, S.L.; Gregorich, K.E.; Dragojevic, I.; Dullmann, Ch.E.; Eichler, R.; Folden III, C.M.; Garcia, M.A.; Gates, J.M.; Stavsetra, L.; Sudowe, R.; Nitsche, H.

2007-09-01

335

Improved Inverse Gap Equation and Quasiparticle Theories of Odd and Even Tin Isotopes  

Microsoft Academic Search

The nuclear-structure properties of the odd and even tin isotopes are studied, making use of an improved inverse-gap-equation (IGE) method and the quasiparticle theories. The two-body nuclear force assumed is a realistic potential (or reaction matrix) renormalized for the core polarization, and two cases are considered: (a) the potential of Tabakin, and (b) the reaction matrix of Yale-Shakin. While most

R. Alzetta; T. Weber; Y. K. Gambhir; M. Gmitro; J. Sawicki; A. Rimini

1969-01-01

336

The Construction and Use of Log-Odds Substitution Scores for Multiple Sequence Alignment  

PubMed Central

Most pairwise and multiple sequence alignment programs seek alignments with optimal scores. Central to defining such scores is selecting a set of substitution scores for aligned amino acids or nucleotides. For local pairwise alignment, substitution scores are implicitly of log-odds form. We now extend the log-odds formalism to multiple alignments, using Bayesian methods to construct “BILD” (“Bayesian Integral Log-odds”) substitution scores from prior distributions describing columns of related letters. This approach has been used previously only to define scores for aligning individual sequences to sequence profiles, but it has much broader applicability. We describe how to calculate BILD scores efficiently, and illustrate their uses in Gibbs sampling optimization procedures, gapped alignment, and the construction of hidden Markov model profiles. BILD scores enable automated selection of optimal motif and domain model widths, and can inform the decision of whether to include a sequence in a multiple alignment, and the selection of insertion and deletion locations. Other applications include the classification of related sequences into subfamilies, and the definition of profile-profile alignment scores. Although a fully realized multiple alignment program must rely upon more than substitution scores, many existing multiple alignment programs can be modified to employ BILD scores. We illustrate how simple BILD score based strategies can enhance the recognition of DNA binding domains, including the Api-AP2 domain in Toxoplasma gondii and Plasmodium falciparum. PMID:20657661

Altschul, Stephen F.; Wootton, John C.; Zaslavsky, Elena; Yu, Yi-Kuo

2010-01-01

337

Charge radii of odd-A191-211Po isotopes  

NASA Astrophysics Data System (ADS)

Isotope shifts have been measured for the odd-A polonium isotopes 191-211Po and changes in the nuclear mean square charge radii ? have been deduced. The measurements were performed at CERN-ISOLDE using the in-source resonance-ionization spectroscopy technique. The combined analysis of these data and our recent results for even-A polonium isotopes indicates an onset of deformation already at 197,198Po, when going away from stability. This is significantly earlier than was suggested by previous theoretical and experimental studies of the polonium isotopes. Moreover and in contrast to the mercury isotopes, where a strong odd-even staggering of the charge radii of the ground states was observed by approaching the neutron mid-shell at N=104, no such effect is present in polonium down to 191Po. Consequently the charge radii of both isomeric and ground states of the odd-A polonium isotopes follow the same trend as the even-A isotopes.

Seliverstov, M. D.; Cocolios, T. E.; Dexters, W.; Andreyev, A. N.; Antalic, S.; Barzakh, A. E.; Bastin, B.; Büscher, J.; Darby, I. G.; Fedorov, D. V.; Fedoseyev, V. N.; Flanagan, K. T.; Franchoo, S.; Fritzsche, S.; Huber, G.; Huyse, M.; Keupers, M.; Köster, U.; Kudryavtsev, Yu.; Marsh, B. A.; Molkanov, P. L.; Page, R. D.; Sjødin, A. M.; Stefan, I.; Van de Walle, J.; Van Duppen, P.; Venhart, M.; Zemlyanoy, S. G.

2013-02-01

338

Mean-field description of odd-frequency superconductivity with staggered ordering vector  

NASA Astrophysics Data System (ADS)

A low-energy fixed-point Hamiltonian is constructed for the s-wave odd-frequency pairing state with staggered ordering vector in the two-channel Kondo lattice. The effective model is justified because it reproduces low-energy behaviors of self-energy obtained by the dynamical mean-field theory. The retardation effect is essential for the odd-frequency pairing, which comes from the hybridization process between conduction electrons and pseudofermions originating from localized spins at low energies. Using the effective Hamiltonian, the electromagnetic response functions are microscopically calculated. The present system shows a "weak" Meissner effect, where both paramagnetic and diamagnetic parts contribute to the Meissner kernel to give a small total diamagnetic response in the superconducting state. This feature is in contrast to the ordinary s-wave BCS pairing where only the diamagnetic kernel is finite in the ground state. The staggered nature of the odd-frequency order parameter plays an important role for the sign of the Meissner kernel.

Hoshino, Shintaro

2014-09-01

339

Structure of the doublet bands in doubly odd nuclei: The case of {sup 128}Cs  

SciTech Connect

The structure of the {Delta}J=1 doublet bands in {sup 128}Cs is investigated within the framework of the interacting vector boson-fermion model. A new, purely collective interpretation of these bands is given on the basis of the used boson-fermion dynamical symmetry of the model. The energy levels of the doublet bands as well as the absolute B(E2) and B(M1) transition probabilities between the states of both yrast and yrare bands are described quite well. The observed odd-even staggering of both B(M1) and B(E2) values is reproduced by the introduction of an appropriate interaction term of quadrupole type, which produces such a staggering effect in the transition strengths. The calculations show that the appearance of doublet bands in certain odd-odd nuclei could be a consequence of the realization of a larger dynamical symmetry based on the noncompact supersymmetry group OSp(2{Omega}/12,R).

Ganev, H. G. [Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia 1784 (Bulgaria); Brant, S. [Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb (Croatia)

2010-09-15

340

Shape phase transition in odd-even nuclei: From spherical to deformed gamma-unstable shapes  

SciTech Connect

Shape phase transitions in odd-A nuclei are investigated within the framework of the interacting boson-fermion model. The case of a single j=9/2 fermion coupled to an even-even boson core is considered. This boson core transits from spherical to gamma-unstable shapes depending on the value of a control parameter in the boson Hamiltonian. The effect of the coupling of the odd particle to this core along the shape transition and, in particular, at the critical point is discussed. For that purpose, the ground-state energy surface in terms of the beta and gamma shape variables for the even core and odd-even energy surfaces for the different K states coming from j=9/2 are constructed. The evolution of each individual coupled state along the transition from the spherical [U(5)] to the gamma-unstable [O(6)] situation is investigated. One finds that the core-fermion coupling gives rise to a smoother transition than in the even-core case.

Boeyuekata, M. [Physics Department, Faculty of Science and Arts, University of Kirikkale, 71450 Kirikkale (Turkey); Alonso, C. E.; Arias, J. M. [Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Fisica, Universidad de Sevilla, Apartado 1065, ES-41080 Sevilla (Spain); Fortunato, L. [European Centre for Theoretical Studies in Nuclear Physics and Related Areas, Strada delle Tabarelle 286, I-38123 Villazzano (Italy); Vitturi, A. [Dipartimento di Fisica Galileo Galilei and Istituto Nazionale di Fisica Nucleare, Via Marzolo 8, IT-35131 Padova (Italy)

2010-07-15

341

On the relationship of gerbes to the odd families index theorem  

NASA Astrophysics Data System (ADS)

The goal of this paper is to apply the universal gerbe of [A. Carey, J. Mickelsson, A gerbe obstruction to quantization of fermions on odd dimensional manifolds, Lett. Math. Phys. 51 (2000) 145-160] and [A.L. Carey, J. Mickelsson, The universal gerbe, Dixmier-Douady classes and gauge theory, Lett. Math. Phys. 59 (2002) 47-60] to give an alternative, simple and more unified view of the relationship between index theory and gerbes. We discuss determinant bundle gerbes [A. Carey, J. Mickelsson, M. Murray, Index theory, gerbes, and Hamiltonian quantization, Comm. Math. Phys. 183 (1997) 707-722] and the index gerbe of [J. Lott, Higher-degree analogs of the determinant line bundle, Comm. Math. Phys. 230 (1) (2002) 41-69] for the case of families of Dirac operators on odd dimensional closed manifolds. The method also works for a family of Dirac operators on odd dimensional manifolds with boundary, for a pair of Melrose and Piazza's Cl(1)-spectral sections for a family of Dirac operators on even dimensional closed manifolds with vanishing index in K-theory and, in a simple case, for manifolds with corners. The common feature of these bundle gerbes is that there exists a canonical bundle gerbe connection whose curving is given by the degree 2 part of the even eta form (up to a locally defined exact form) arising from the local family index theorem.

Carey, Alan L.; Wang, Bai-Ling

2006-12-01

342

Different aggressive behaviours are exaggerated by facing vs. broadside subliminal stimuli shown to socially isolated Siamese fighting fish, Betta splendens.  

PubMed

We report and analyse some features of a new phenomenon: socially isolated Betta splendens become extremely hyper-aggressive after seeing brief glimpses of fish models or mirrors. These brief glimpses are below the threshold for releasing aggressive display, so they are considered subliminal aggressive stimuli. The hyper-aggressiveness was observed to last for weeks. To confirm that hyper-aggressiveness was dependent upon the aggressive significance of the subliminal stimuli, we presented socially isolated Betta splendens with subliminal models in either a `facing' posture (used mainly in aggressive contexts), or a `broadside' posture (used in many social contexts). The fish shown the aggressive `facing' subliminal stimuli became more aggressive, while those shown `broadside' stimuli performed more generalized advertisement behaviours. The display posture of the model, which may incorporate specific features relevant to aggression, therefore determined how the subliminal aggressive stimuli altered subsequent aggressiveness. This difference was also persistent. Subliminal stimuli may thus be implicated in the hyper-aggressiveness so often reported after social isolation. PMID:24897608

Halperin, J R; Giri, T; Dunham, D W

1997-04-01

343

Physical Activity, Sports Participation, and Suicidal Behavior among College Students.  

ERIC Educational Resources Information Center

Used data from the 1995 National College Health Risk Behavior Survey to evaluate the relationship between physical activity, sports participation, and suicide among college students. Overall, selected physical activity patterns were associated in a non-systematic manner with decreased or increased odds of suicidal behavior among male and female…

Brown, David R.; Blanton, Curtis J.

2002-01-01

344

How might Model-based Probabilities Extracted from Imperfect Models Guide Rational Decisions: The Case for non-probabilistic odds  

NASA Astrophysics Data System (ADS)

This contribution concerns "deep" or "second-order" uncertainty, such as the uncertainty in our probability forecasts themselves. It asks the question: "Is it rational to take (or offer) bets using model-based probabilities as if they were objective probabilities?" If not, what alternative approaches for determining odds, perhaps non-probabilistic odds, might prove useful in practice, given the fact we know our models are imperfect? We consider the case where the aim is to provide sustainable odds: not to produce a profit but merely to rationally expect to break even in the long run. In other words, to run a quantified risk of ruin that is relatively small. Thus the cooperative insurance schemes of coastal villages provide a more appropriate parallel than a casino. A "better" probability forecast would lead to lower premiums charged and less volatile fluctuations in the cash reserves of the village. Note that the Bayesian paradigm does not constrain one to interpret model distributions as subjective probabilities, unless one believes the model to be empirically adequate for the task at hand. In geophysics, this is rarely the case. When a probability forecast is interpreted as the objective probability of an event, the odds on that event can be easily computed as one divided by the probability of the event, and one need not favour taking either side of the wager. (Here we are using "odds-for" not "odds-to", the difference being whether of not the stake is returned; odds of one to one are equivalent to odds of two for one.) The critical question is how to compute sustainable odds based on information from imperfect models. We suggest that this breaks the symmetry between the odds-on an event and the odds-against it. While a probability distribution can always be translated into odds, interpreting the odds on a set of events might result in "implied-probabilities" that sum to more than one. And/or the set of odds may be incomplete, not covering all events. We ask whether or not probabilities based on imperfect models can be expected to yield probabilistic odds which are sustainable. Evidence is provided that suggest this is not the case. Even with very good models (good in an Root-Mean-Square sense), the risk of ruin of probabilistic odds is significantly higher than might be expected. Methods for constructing model-based non-probabilistic odds which are sustainable are discussed. The aim here is to be relevant to real world decision support, and so unrealistic assumptions of equal knowledge, equal compute power, or equal access to information are to be avoided. Finally, the use of non-probabilistic odds as a method for communicating deep uncertainty (uncertainty in a probability forecast itself) is discussed in the context of other methods, such as stating one's subjective probability that the models will prove inadequate in each particular instance (that is, the Probability of a "Big Surprise").

Smith, Leonard A.

2010-05-01

345

Multiday administration of ivermectin is effective in reducing alcohol intake in mice at doses shown to be safe in humans.  

PubMed

Ivermectin (IVM), an FDA approved anthelmintic agent, can significantly reduce ethanol intake in mice following acute administration. The current study evaluates the sustainability and safety of multiday IVM administration in reducing 10% v/v ethyl alcohol (10E) intake in mice at a dose shown to be safe in humans. We tested the effect of 10-day administration of IVM (3.0?mg/kg/day; intraperitoneally) on reducing 10E intake in C57BL/6J mice using a 24-h, two-bottle choice paradigm. On the 10th day of IVM administration, mice were sacrificed at 0, 0.5, 2, 8, 32, 48, and 72?h after injection. Brain tissue and plasma samples were collected and analyzed using liquid chromatography with tandem mass spectrometry (LC-MS/MS). Analysis of variance (ANOVA) was used to assess the effect of 10-day IVM administration on 10E intake, 10E preference, water intake, and total fluid intake with Dunnett's multiple comparison post-hoc test. Individual Student's t-tests were also used to further quantify changes in these dependent variables. IVM significantly decreased 10E intake over a 9-day period (P<0.01). Pre-IVM 10E intake was 9.1±3.2?g/kg/24?h. Following the 9th day of IVM injections, intake dropped by almost 30% (P<0.05). IVM had no effect on total water intake or mouse weight throughout the study; however, there was a significant decrease in both preference for 10E (P<0.01) and total fluid intake (P<0.05). Multiday administration of IVM significantly reduces 10E intake and preference in animals without causing any apparent adverse effects at a dose shown to be safe in humans. PMID:25004078

Yardley, Megan M; Neely, Michael; Huynh, Nhat; Asatryan, Liana; Louie, Stan G; Alkana, Ronald L; Davies, Daryl L

2014-09-10

346

Even-odd effects and Coulomb effects on minimal excitation energy of fragments from low energy fission  

E-print Network

This work is focused on even-odd effects on the minimal total fragment excitation energy in thermal neutron induced fission of 233U and 235U as well as in spontaneous fission of 252Cf. In a scission model, taking into account the fragment deformation properties and Coulomb interaction between fragments, the expression of the difference between Q-values referred to even/even and odd/odd charge splits, respectively, on the corresponding difference between the minimal total fragment excitation energy is studied.

Modesto Montoya

2014-10-06

347

Relationship of peroxyacetyl nitrate to active and total odd nitrogen at northern high latitudes - Influence of reservoir species on NO(x) and O3  

NASA Technical Reports Server (NTRS)

The partitioning of relative nitrogen in the Arctic and the sub-Arctic troposphere based on measurements conducted during the 1988 Arctic Boundary Layer Expedition (ABLE 3A) is described. The first set of comprehensive odd nitrogen and O3 measurements from the Arctic/sub-Arctic free troposphere shows that a highly aged air mass that has persisted under very cold conditions is present. A large fraction of the odd nitrogen appears to be present in the form of reservoir species such as PAN. Significant quantities of as yet unknown reactive nitrogen species, such as complex alkyl nitrates and pernitrates, are expected to be present. Together with PAN, these nitrate and pernitrate reservoir species could control the entire NO(x) availability of the high-latitude troposphere and in turn influence the O3 photochemistry of the region. The role of PAN in influencing the O3 reservoir is shown to be important and may be responsible for the increasing O3 temporal trend observed at high latitudes.

Singh, H. B.; Herlth, D.; O'Hara, D.; Zahnle, K.; Bradshaw, J. D.; Sandholm, S. T.; Talbot, R.; Crutzen, P. J.; Kanakidou, M. A.

1992-01-01

348

Biological pattern and transcriptomic exploration and phylogenetic analysis in the odd floral architecture tree: Helwingia willd  

PubMed Central

Background Odd traits in few of plant species usually implicate potential biology significances in plant evolutions. The genus Helwingia Willd, a dioecious medical shrub in Aquifoliales order, has an odd floral architecture-epiphyllous inflorescence. The potential significances and possible evolutionary origin of this specie are not well understood due to poorly available data of biological and genetic studies. In addition, the advent of genomics-based technologies has widely revolutionized plant species with unknown genomic information. Results Morphological and biological pattern were detailed via anatomical and pollination analyses. An RNA sequencing based transcriptomic analysis were undertaken and a high-resolution phylogenetic analysis was conducted based on single-copy genes in more than 80 species of seed plants, including H. japonica. It is verified that a potential fusion of rachis to the leaf midvein facilitates insect pollination. RNA sequencing yielded a total of 111450 unigenes; half of them had significant similarity with proteins in the public database, and 20281 unigenes were mapped to 119 pathways. Deduced from the phylogenetic analysis based on single-copy genes, the group of Helwingia is closer with Euasterids II and rather than Euasterids, congruent with previous reports using plastid sequences. Conclusions The odd flower architecture make H. Willd adapt to insect pollination by hosting those insects larger than the flower in size via leave, which has little common character that other insect pollination plants hold. Further the present transcriptome greatly riches genomics information of Helwingia species and nucleus genes based phylogenetic analysis also greatly improve the resolution and robustness of phylogenetic reconstruction in H. japonica. PMID:24969969

2014-01-01

349

Top Quark Physics  

Microsoft Academic Search

In this contribution I review the physics of top quarks at a future Linear Collider. Main emphasis is put on the process e+ e- --> t bar t close to threshold. Different physical observables, their sensitivity to the basic parameters and their theoretical prediction are discussed. Recent higher order calculations are shown to have a considerable impact on a precise

Thomas Teubner

1999-01-01

350

Emotional and rational product appeals in televised food advertisements for children: analysis of commercials shown on US broadcast networks.  

PubMed

The aggressive advertising and marketing of high caloric food products to children is implicated as a potential causative factor in the childhood obesity epidemic. This study analyzed 147 commercials appearing during children's programming on U.S. broadcast networks for a wide range of potential emotional and rational advertising appeals. The most prominent emotional appeals were fun/happiness and play followed by fantasy/ imagination, social enhancement/peer acceptance, and coolness/hipness. Many of the products used the term ;super-charged' or a similar adjective to describe the powerful taste or other physical properties of the product. More than one-third of all the commercials used a fruit appeal or association. Statements or depictions that a product was healthy or nutritious were quite rare among the commercials. This seems to imply that health and nutrition claims are understood by food marketers to not be salient concerns among children and as such are not a selling point to children. Commercials for high sugar cereal products and fast food restaurants differed in several respects. This study can serve to guide child health care professionals and other child advocates in designing measures that counter food advertising messages directed at children. PMID:18039734

Page, Randy M; Brewster, Aaron

2007-12-01

351

The influence of quasineutron configurations on {sup 161}Ta and nearby odd-A nuclei  

SciTech Connect

Several strongly coupled bands in the neutron-deficient nucleus {sup 161}Ta have been identified and quasiparticle configuration assignments have been made on the basis of rotational alignments and cranked shell model calculations. The level scheme elucidated for {sup 161}Ta highlights the competition between the {nu}(h{sub 9/2}) and {nu}(i{sub 13/2}) orbitals to form the yrast spectrum. The band structures in {sup 161}Ta also provide new insights into the structural features of other heavy odd-A nuclei populated with much lower reaction cross sections in this region at the proton drip line.

Joss, D. T.; Thomson, J.; Bianco, L.; O'Donnell, D.; Page, R. D.; Paul, E. S.; Sapple, P. J.; Wiseman, D. R. [Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE (United Kingdom); Lagergren, K. [Joint Institute for Heavy Ion Research, Holifield Radioactive Ion Beam Facility, Oak Ridge, TN 37381 (United States); Appelbe, D. E.; Barton, C. J.; Gomez-Hornillos, M. B.; Labiche, M.; Simpson, J.; Warner, D. D. [STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD (United Kingdom); Cederwall, B.; Hadinia, B.; Wyss, R. [Department of Physics, Royal Institute of Technology, S-10691 Stockholm (Sweden); Darby, I. G.; Grahn, T. [Department of Physics, University of Jyvaeskylae, P.O. Box 35, FI-40014 (Finland); and others

2011-11-30

352

Lifetimes of odd-spin yrast states in {sup 182}Hg  

SciTech Connect

Lifetimes of excited states in {sup 182}Hg were extracted from recoil-gated {gamma}-ray spectra and recoil-gated {gamma}{gamma}-coincidence matrices using the recoil distance Doppler-shift method. States were populated using the {sup 96}Mo({sup 88}Sr,2n){sup 182}Hg fusion-evaporation reaction. Measured lifetimes allowed transition probabilities, transition quadrupole moments, quadrupole deformation parameters, and transition dipole moments to be deduced for the band formed by the odd-spin yrast states. The experimental results confirm the low degree of octupole collectivity in this mass region.

Scheck, M.; Grahn, T.; Petts, A.; Butler, P. A.; Gaffney, L. P.; Page, R. D.; Pakarinen, J.; Paul, E. S. [Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom); Dewald, A.; Jolie, J.; Melon, B.; Pissulla, Th. [Institut fuer Kernphysik, Universitaet zu Koeln, Zuelpicher Str. 77, D-50937 Koeln (Germany); Hornillos, M. B. Gomez [STFC, Daresbury Laboratory, Warrington WA4 4AD (United Kingdom); Goergen, A.; Ljungvall, J. [CEA-SACLAY, DSM/DAPNIA/SPhN, F-91191 Gif-Sur-Yvette Cedex (France); Greenlees, P. T.; Jones, P.; Julin, R.; Juutinen, S.; Ketelhut, S. [Department of Physics, University of Jyvaeskylae, P.O. Box 35, FI-40014 Jyvaeskylae (Finland)

2010-01-15

353

Evolution of odd A transitional iridium nuclei at the strong deformation limit levels of $\\^{185}$Ir  

E-print Network

A level scheme is proposed for neutron deficient /sup 185/Ir obtained by the decay of /sup 185/Pt produced with the ISOLDE on-line separator (CERN). This level scheme is compared to those of heavier mass iridium nuclei where the negative parity levels had been interpreted in the asymmetric-rotor-plus-particle model. In /sup 185/Ir similar systems of levels appear with a stronger prolate deformation of the nucleus. They seem correctly described by coupling an odd-particle (or a hole) to a symmetric rotor.

Sébille-Schück, C; Genevey-Rivier, J; Höglund, A; Huck, A; Knipper, A; Richard-Serre, Claude; Walter, G

1976-01-01

354

Holocene sea-level change: geological records from the Skagen Odde spit system, Denmark  

NASA Astrophysics Data System (ADS)

Skagen Odde (northern Jutland, Denmark) is one of the largest spit systems in Europe. The spit, which now has a length of more than 30 km, has developed over the past 7000 years and spit growth towards the northeast is linked to a relatively continuous supply of marine sand and gravel transported north-eastward by longshore currents (Clemmensen et al. 2001, The Holocene 11, 323-331; Nielsen & Johannessen 2009, Sedimentology 56, 935-968). Spit evolution has been influenced by isostatic uplift (causing a drop in relative sea level) and eustatic sea level change. Reliable age models are required to unravel the details of the relationship between the evolution of the Skagen Odde spit system and sea-level variation. Early models relied on radiocarbon-dating of swale peats (Clemmensen et al. 2001, The Holocene 11, 323-331). Clemmensen & Murray 2010 (Boreas 39, 154-162) used optically stimulated luminescence (OSL) dating to test the reliability of this method to the spit system in question and made a first comparison between OSL dating and radiocarbon-dating of the spit deposits. Their results indicated that the OSL age of the test sites were in good agreement with previous chronology based on radiocarbon dating. Along the western side of Skagen Odde there is an almost continuous c. 15 km long section of spit deposits; in this study we use OSL dating of beach and backshore aeolian deposits to obtain supplementary age control on Skagen Odde spit development between 5000 and 2000 years ago. We define a new sedimentary proxy (foreshore-backshore boundary) for sea level and measure its elevation at 36 sites with the aim to look for variations in past sea level. The new elevation data indicate that the elevation of the foreshore-backshore boundary drops from about 11 m in the south (5000 years ago) to about 2.5 m towards the north (2000 years ago), and finally to about 0.8 m at the modern beach. The data points can be fitted by a curve being progressively steeper back in time. Data points between 5000 and 4000 years ago have values above the curve, while data points thereafter have values close to the curve. The data suggest that the isostatic rebound rate decreased between 5000 and 2000 years ago from about 3.5 mm/yr to about 1 mm/yr. Eustatic sea level was apparently high prior to 4000 years ago, dropped dramatically just after 4000 years ago and stayed close to modern values during the past 3500 years. The inferred drop in sea level takes place at the transition from the middle Holocene Thermal Maximum to the late Holocene Thermal Decline.

Clemmensen, L. B.; Murray, A.

2011-12-01

355

Charge separation induced by P-odd bubbles in QCD matter  

E-print Network

We examine the recent suggestion that P- and CP-odd effects in QCD matter can induce electric charge asymmetry with respect to reaction plane in relativistic heavy ion collisions. General arguments are given which confirm that the angular momentum of QCD matter in the presence of non-zero topological charge should induce an electric field aligned along the axis of the angular momentum. A simple formula relating the magnitude of charge asymmetry to the angular momentum and topological charge is derived. The expected asymmetry is amenable to experimental observation at RHIC and LHC; we discuss the recent preliminary STAR result in light of our findings.

D. Kharzeev; A. Zhitnitsky

2007-06-07

356

The use of odds ratio in the large population-based studies: Warning to readers  

PubMed Central

Summary When researchers conduct large prospective studies, they provide results generating statistical analysis; therefore readers need considerable familiarity with descriptive and inferential statistics. If quantitative judgments are based on interpreting odds ratios as though they were relative risks, they are unlikely to be seriously in error. Because of the calculating method, the OR is often less precise than the RR in estimating the strength of an association, and this should definitely be kept in mind by anyone who reads and interprets the results of a large population based-study. PMID:24932454

Di Lorenzo, Luigi; Coco, Valeria; Forte, Francesco; Trinchese, Giovanni Felice; Forte, Alfonso Maria; Pappagallo, Marco

2014-01-01

357

Trap-assisted studies of odd, neutron-rich isotopes from Tc to Pd  

NASA Astrophysics Data System (ADS)

We review the present and future of trap-assisted structure studies of odd, neutron-rich Tc, Ru, Rh and Pd isotopes at the limits of present experimental techniques. These nuclei of refractory elements are produced in light-particle induced fission and filtered by their mass number with the IGISOL mass separator. Further mass separation with the JYFLTRAP Penning trap system provides a clean, monoisotopic beam perfectly suited for precise nuclear spectroscopy. Connecting the IGISOL and the JYFLTRAP facilities to the recently installed MCC30/15 cyclotron opens new prospects for post-trap spectroscopy of very exotic, neutron-rich nuclei.

Kurpeta, J.; Jokinen, A.; Penttilä, H.; P?ochocki, A.; Rissanen, J.; Urban, W.; Äystö, J.

2014-01-01

358

Development of odd-Z-projectile reactions for transactinide element synthesis  

SciTech Connect

The development of new odd-Z-projectile reactions leading to the production of transactinide elements is described. The cross section of the even-Z-projectile 208Pb(64Ni, n)271Ds reaction was measured at two new energies using the Berkeley Gas-filled Separator at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. In total, seven decay chains attributable to 271Ds were observed. These data, combined with previous results, establish an excitation function for the production of 271Ds. The maximum cross section was 20 +15 -11 pb at a center-of-target energy of 311.5 MeV in the laboratory frame.The data from the 271Ds experiments were used to estimate the optimum beam energy for the new odd-Z-projectile 208Pb(65Cu, n)272-111 reaction using the Fusion by Diffusion theory proposed by Swiatecki, Siwek-Wilczynska, and Wilczynski. A cross section for this reaction was measured for the first time, at a center-of-target energy of 321.1 MeV in the laboratory frame. The excitation energy f or compound nuclei formed at the target center was 13.2 MeV. One decay chain was observed, resulting in a measured cross section of 1.7 +3.9 -1.4 pb. This decay chain is in good agreement with previously published data on the decay of 272-111.The new odd-Z-projectile 208Pb(55Mn, n)262Bh reaction was studied at three different projectile energies, and 33 decay chains of 262Bh were observed. The existence of a previously reported alpha-decaying isomeric state in this nuclide was confirmed. Production of the ground state was preferred at all three beam energies. The maximum cross section was 540 +180 -150 pb at a projectile center-of-target energy of 264.0 MeV. This cross section is much larger than that previously reported for the even-Z-projectile 209Bi(54Cr, n)262Bh reaction, which may be because the 54Cr projectile energies in the latter reaction were too high for optimum production of the 1n product. At the highest projectile energy of 268.0 MeV in the target center, two decay chains from 261Bh were observed as a result of the 208Pb(55Mn, 2n) reaction. In summary, this work shows that odd-Z-projectile reactions can have cross sections comparable to analogous even-Z-projectile reactions, and that the energy of the maximum cross section for 1n reactions can be estimated simply.

Folden III, Charles Marvin

2004-11-04

359

Carbohydrate moieties of the interstitial and glandular tissues of the amphibian Pleurodeles waltl testis shown by lectin histochemistry  

PubMed Central

The amphibian testis is a useful model because of its zonal organisation in lobules, distributed along the cephalocaudal axis, each containing a unique germ cell type. Sperm empty lobules form the so-called glandular tissue at the posterior region of the gonad. Androgen production is limited to the cells of the interstitial tissue surrounding lobules with spermatozoa bundles and to the cells of the glandular tissue. In this work, we have studied the distribution of terminal carbohydrate moieties of N- and O-linked oligosaccharides in the interstitial and glandular tissue of the Pleurodeles waltl testis, by means of 14 lectins combined with chemical and enzymatic deglycosylation pretreatment. Some differences in glycan composition between the interstitial and the glandular tissue have been detected. Thus in both tissues, N-linked oligosaccharides contained mannose, Gal(?1,4)GlcNAc, and Neu5Ac(?2,3)Gal(?1,4)GlcNAc, while O-linked oligosaccharides contained Con A-positive mannose, Gal(?1,3)GalNAc, Gal(?1,4)GlcNAc, Neu5Ac(?2,3)Gal(?1,4)GlcNAc, and WGA-positive GlcNAc. Fucose was also detected in both tissues. However, GlcNAc on N-linked oligosaccharides and GalNAc and Neu5Ac(?2,6)Gal/GalNAc on both N- and O-linked oligosaccharides were found only in the interstitial tissue. As glandular tissue cells arise from the innermost cells of interstitial tissue that surround lobules, the differences in the glycan composition of interstitial and glandular tissue shown in this work may be related to the start of androgen synthesis when steroid hormone (SH)-secreting cells develop. PMID:11215767

SAEZ, FRANCISCO JOSE; MADRID, JUAN FRANCISCO; APARICIO, RAQUEL; HERNANDEZ, FRANCISCO; ALONSO, EDURNE

2001-01-01

360

First Identification of Resident and Circulating Fibrocytes in Dupuytren's Disease Shown to Be Inhibited by Serum Amyloid P and Xiapex  

PubMed Central

Dupuytren’s disease (DD) is a common progressive fibroproliferative disorder causing permanent digital contracture. Proliferative myofibroblasts are thought to be the cells responsible for DD initiation and recurrence, although their source remains unknown. DD tissue has also been shown to harbor mesenchymal and hematopoietic stem cells. Fibrocytes are circulating cells that show characteristics of fibroblasts and they express surface markers for both hematopoietic and mesenchymal stromal cells. Fibrocytes differentiate from peripheral CD14+ mononuclear cells, which can be inhibited by serum amyloid P (SAP). In this study we have demonstrated the presence of fibrocytes in DD blood and tissue, moreover we have evaluated the effects of SAP and Xiapex (Collagenase Clostridium histolyticum) on fibrocytes derived from DD. H&E staining showed typical Spindle shaped morphology of fibrocytes. FACS analysis based on a unique combination of 3 markers, revealed the increased presence of fibrocytes in blood and tissue of DD patients. Additionally, immunohistology of DD nodule and cord tissue showed the presence of collagen 1+/CD34+ cells. No difference in plasma SAP levels was observed between DD and control. Higher concentrations of SAP significantly inhibited fibrocytes differentiated from DD derived monocytes compared to control. DD fascia derived fibrocytes showed resistance to growth inhibition by SAP, particularly nodule derived fibrocytes showed robust growth even at higher SAP concentrations compared to control. DD derived fibrocytes were positive for typical fibrocyte dual markers, i.e. Collagen 1/LSP-1 and collagen 1/CD34. Xiapex was more effective in inhibiting the growth of nodule derived cells compared to commercially available collagenase A. Our results show for the first time the increased presence of fibrocytes in DD patient’s blood and disease tissue compared to control tissue. Additionally, we evaluate the response of these fibrocytes to SAP and Xiapex therapy. PMID:24933153

Iqbal, Syed Amir; Hayton, Michael John; Watson, James Stewart; Szczypa, Piotr; Bayat, Ardeshir

2014-01-01

361

The Link between Peer Relations, Prosocial Behavior, and ODD/ADHD Symptoms in 7-9-Year-Old Children  

PubMed Central

Oppositional defiant disorder (ODD) and attention-deficit/hyperactivity disorder (ADHD) are characterized by symptoms that hinder successful positive interaction with peers. The main goal of this study was to examine if the presence of symptoms of ODD and ADHD affects the relationship between positive social behavior and peer status found in 7–9-year-old children who show symptoms typical of ADHD and/or ODD. Furthermore, the possible interaction with sex was investigated. We used data collected in the first wave of The Bergen Child Study of mental health (BCS), a prospective longitudinal total population study of children's developmental and mental health. The target population consisted of children in the second to the fourth, in all public, private, and special schools in Bergen, Norway, in the fall of 2002 (N = 9430). All 79 primary schools in Bergen participated in the study. Both teacher (8809 complete cases) and parent (6253 complete cases) report were used in the analyses. ADHD and ODD scores were estimated using the Swanson Noland and Pelham rating scale version IV (SNAP-IV), and peer problems and prosocial behavior were assessed using the Strengths and Difficulties Questionnaire (SDQ). We replicated the relationship between peer problems and prosocial behavior found previously in typically developing children. Our results showed that the relationship between peer problems and prosocial behavior became weaker as the ODD symptoms increased in number and severity. For ADHD this effect was only found in the teacher report of the children. A sex effect for ODD symptoms was found only using the parent report: boys with ODD symptoms showed less prosocial behavior than girls with similar levels of ODD symptoms. Since this effect was not found using the teacher data, it may imply a situational effect (school/home) for girls with high levels of ODD. The moderator effect of ODD/ADHD was comparable for boys and girls. Our findings suggest that even if children with ADHD/ODD symptoms have the opportunity to practice their social skills in peer relationships, this is not necessarily accompanied by an increase in prosocial behavior. PMID:24286065

Paap, Muirne C. S.; Haraldsen, Ira R.; Breivik, Kyrre; Butcher, Phillipa R.; Hellem, Fr?ydis M.; Stormark, Kjell M.

2013-01-01

362

Odds of fault and factors for out-of-state drivers in crashes in four states of the USA.  

PubMed

Drivers outside their country of residence are at a safety disadvantage when compared to native counterparts. This research aimed to (1) investigate if out-of-state drivers in the United States experienced the same vulnerabilities as foreign drivers, and (2) examine the relations of out-of-state crashes to various human and environmental factors. Crash data from Florida, Maine, Minnesota, and Nevada was analyzed to model fault using logistic regressions. Univariate regressions showed that out-of-state drivers had increased odds of fault, ranging from 17% to 92%, for a single-vehicle crash compared to in-state drivers in all states except Florida, where there was no difference between groups. Odds were elevated for out-of-state drivers in two-vehicle crashes by 3% to 19% in all states except Florida and Minnesota, where, again, there was no difference between groups. Human and environmental factors such as age, sex, driving conditions, and seasons were examined with multivariate regressions for in- and out-of-state groups separately, and their odds ratios were compared. For single-vehicle crashes age, sex, road grade, surface condition, light conditions, and day of week were factors that increased at least one of the two groups' odds of fault in all states. Sex, surface condition, and light conditions increased the odds of fault for at least one of the groups in two-vehicle crashes in all four states. Factors that consistently increased odds of fault for both single- and two-vehicle crashes were males, non-vehicle owners, curves, and inclement weather. Although there were several factors in each state that increased odds of fault for out-of-state drivers, no factors consistently increased odds of fault for out-of-state drivers across all four states. PMID:25003968

Harootunian, Kristine; Lee, Brian H Y; Aultman-Hall, Lisa

2014-11-01

363

Black hole perturbation in the most general scalar-tensor theory with second-order field equations: The odd-parity sector  

NASA Astrophysics Data System (ADS)

We perform a fully relativistic analysis of odd-type linear perturbations around a static and spherically symmetric solution in the most general scalar-tensor theory with second-order field equations in four-dimensional spacetime. It is shown that, as in the case of general relativity, the quadratic action for the perturbations reduces to the one having only a single dynamical variable, from which concise formulas for no-ghost and no-gradient instability conditions are derived. Our result is applicable to all the theories of gravity with an extra scalar degree of freedom. We demonstrate how the generic formulas can be applied to some particular examples such as the Brans-Dicke theory, f(R) models, and Galileon gravity.

Kobayashi, Tsutomu; Motohashi, Hayato; Suyama, Teruaki

2012-04-01

364

Parity Doublets in Quark Physics  

SciTech Connect

There are numerous examples of very nearly degenerate states of opposite parity in molecular physics. The ammonia maser is based on one such doublet.Theory shows that these parity doublets can occur if the nuclear shape in the molecule is reflection asymmetric because the time scales of the shape and the electronic cloud are well separated. Parity doublets occur in nuclear physics as well for odd A{approximately}219{endash}229. We discuss the theoretical foundation of these doublets and on that basis suggest that parity doublets should occur in particle physics too.In particular they should occur among baryons composed of cbu and cbd quarks. {copyright} {ital 1996} {ital The American Physical Society}

Balachandran, A.; Vaidya, S. [Department of Physics, Syracuse University, Syracuse, New York 13244-1130 (United States)] [Department of Physics, Syracuse University, Syracuse, New York 13244-1130 (United States)

1997-01-01

365

Mycobacterium tuberculosis is the causative agent of tuberculosis in the southern ecological zones of Cameroon, as shown by genetic analysis  

PubMed Central

Background Tuberculosis (TB) is a major cause of mortality and suffering worldwide, with over 95% of TB deaths occurring in low- and middle-income countries. In recent years, molecular typing methods have been widely used in epidemiological studies to aid the control of TB, but this usage has not been the case with many African countries, including Cameroon. The aims of the present investigation were to identify and evaluate the diversity of the Mycobacterium tuberculosis complex (MTBC) isolates circulating in two ecological zones of Cameroon, seven years after the last studies in the West Region, and after the re-organization of the National TB Control Program (NTBCP). These were expected to shed light also on the transmission of TB in the country. The study was conducted from February to July 2009. During this period, 169 patients with symptomatic disease and with sputum cultures that were positive for MTBC were randomly selected for the study from amongst 964 suspected patients in the savannah mosaic zone (West and North West regions) and the tropical rainforest zone (Central region). After culture and diagnosis, DNA was extracted from each of the MTBC isolates and transported to the BecA-ILRI Hub in Nairobi, Kenya for molecular analysis. Methods Genetic characterization was done by mycobacterial interspersed repetitive unit–variable number tandem repeat typing (MIRU-VNTR) and Spoligotyping. Results Molecular analysis showed that all TB cases reported in this study were caused by infections with Mycobacterium tuberculosis (98.8%) and Mycobacterium africanum (M. africanum) (1.2%) respectively. We did not detect any M. bovis. Comparative analyses using spoligotyping revealed that the majority of isolates belong to major clades of M. tuberculosis: Haarlem (7.6%), Latin American-Mediterranean (34.4%) and T clade (26.7%); the remaining isolates (31.3%) where distributed among the minor clades. The predominant group of isolates (34.4%) corresponded to spoligotype 61, previously described as the “Cameroon family. Further analysis based on MIRU-VNTR profiles had greater resolving power than spoligotyping and defined additional genotypes in the same spoligotype cluster. Conclusion The molecular characterization of MTBC strains from humans in two ecological regions of Cameroon has shown that M. tuberculosis sensu stricto is the predominant agent of TB cases in the zones. Three decades ago, TB was reported to be caused by M. africanum in 56.0% of cases. The present findings are consistent with a major shift in the prevalence of M. tuberculosis in Cameroon. PMID:24028382

2013-01-01

366

On the representation of even numbers as the sum and difference of two primes and the representation of odd numbers as the sum of an odd prime and an even semiprime and the distribution of primes in short intervals  

E-print Network

The representation of even numbers as the sum of two primes and the distribution of primes in short intervals were investigated and a main theorem was given out and proved, which states: For every number $n$ greater than a positive number $n_{0}$, let $q$ be an odd prime number smaller than $\\sqrt{2n}$ and $d=2n-q$, then there is always at least an odd number $d$ which does not contain any prime factor smaller than $\\sqrt{2n}$ and must be an odd prime number greater than $2n-\\sqrt{2n}$. Then it was proved that for every number $n$ greater than 1, there are always at least a pair of primes $p$ and $q$ which are symmetrical about the number $n$ so that even numbers greater than 2 can be expressed as the sum of two primes. Hence, the Goldbach's conjecture was proved. Also theorems of the distribution of primes in short intervals were given out and proved. By these theorems, the Legendre's conjecture, the Oppermann's conjecture, the Hanssner's conjecture, the Brocard's conjecture, the Andrica's conjecture, the Sierpinski's conjecture and the Sierpinski's conjecture of triangular numbers were proved and the Mills' constant can be determined. The representation of odd numbers as the sum of an odd prime number and an even semiprime was investigated and a main theorem was given out and proved, which states: For every number $n$ greater than a positive number $n_{0}$, let $q$ be an odd prime number smaller than $\\sqrt{2n}$ and $d=2n+1-2q$, then there is always at least an odd number $d$ which does not contain any odd prime factor smaller than $\\sqrt{2n}$ and must be a prime number greater than $2n+1-2\\sqrt{2n}$. Then it was proved that for every number $n$ greater than 2, there are always at least a pair of primes $p$ and $q$ so that all odd integers greater than 5 can be represented as the sum of an odd prime number and an even semiprime. Hence, the Lemoine's conjecture was proved.

Shan-Guang Tan

2011-10-16

367

The aeronomy of odd nitrogen in the thermosphere. II - Twilight emissions  

NASA Technical Reports Server (NTRS)

A model developed for the aeronomy of odd nitrogen in the thermosphere is used to analyze rocket measurements of N(4S) and NO densities. Data from Atmosphere Explorer were used to develop a consistent reaction kinetics model for odd nitrogen chemistry. It is concluded that most NO(+) dissociative recombination events must produce N(2D), that N(2D) is quenched by O at a rate of 1 trillionth cu cm per sec, and that the atmospheric O2 quenching rate of N(2D) is consistent with the laboratory rate. The major quenching agent of N(2D) between 140 and 220 km is atomic oxygen, and this reaction is the major source of N(4S). Peak N(4S) densities of about (20-60) million per cu cm at 140-150 km are predicted, with the variability being indicative of the model sensitivity to a factor of 2 change in the O/O2 ratio in the thermosphere.

Strobel, D. F.; Oran, E. S.; Feldman, P. D.

1976-01-01

368

A model of odd nitrogen in the aurorally dosed nighttime terrestrial thermosphere  

NASA Astrophysics Data System (ADS)

A model of the production and loss of odd nitrogen species (mainly, N(4S), N(2D), NO, and NO+) and the enhanced vibration-rotation band emission from NO in the infrared from the aurorally dosed terrestrial nighttime thermosphere is described. This model is assessed by analyzing the observations of the fundamental (?v = -1, ~5.3 ?m) and overtone (?v = -2, ~2.7 ?m) NO vibration-rotation band limb emissions made by a Michelson interferometer and radiometer, respectively, aboard the Cryogenic Infrared Radiance Instrumentation for Shuttle (CIRRIS-1A) experiment on the space shuttle Discovery during an auroral event. The auroral dosing along the line of sight is inferred from the 2.7-?m radiance profiles using a self-consistent procedure. The dosing obtained is then used in the model to predict the spectrally resolved emission in the 5.3-?m region. The calculated overtone radiance profiles agree with the measured ones at lower tangent altitudes, where the signal-to-noise ratio is large. The calculation, however, underpredicts the observed radiance, both fundamental and overtone, at higher tangent altitudes by a factor of ~3 and gives a colder rotational temperature for the rotationally hot component of the spectrally resolved emission from nascent NO. The causes of this discrepancy and its impact on the densities of the odd N species are discussed.

Dothe, H.; Duff, J. W.; Sharma, R. D.; Wheeler, N. B.

2002-06-01

369

Effects of Odd-Z Projectiles on Fusion-Evaporation Cross Sections  

NASA Astrophysics Data System (ADS)

The production of nuclides near the N=126 shell in the ^45Sc + ^159Tb, ^162Dy reactions has been studied at Texas A&M University using the MARS spectrometer. Previously measured 4n exit channel cross sections for the ^48Ca, ^50Ti + ^159Tb and ^48Ca + ^162Dy reactions have exhibited enhanced fission probabilities in the de-excitation of the compound nucleus due to collective enhancements to the fission level density. The current research intends to study the change in the evaporation residue cross sections when odd-Z projectiles react with the same targets. The maximum 4n cross sections of the ^45Sc + ^159Tb, ^162Dy reactions were 2 ?b, and 4 ?b respectively, and these data are several orders of magnitude smaller than both theoretical predictions and the experimental data for the ^48Ca and ^50Ti reactions discussed above. This can be explained by collective enhancements as well as the relative neutron deficiency of ^45Sc compared to ^48Ca and ^50Ti. This talk will discuss theoretical models of evaporation residue cross sections, and will discuss the latest results on excitation functions for odd-Z projectiles reacting with lanthanide targets. This work may also have relevance to the production of superheavy elements with Z 118.

Werke, Tyler; Mayorov, Dmitriy; Alfonso, Marisa; Bennett, Megan; Devanzo, Michael; Folden, Charles, III

2013-04-01

370

Neutron Single Particle States and Isomers in Odd Mass Nickel Isotopes Near 78NI  

NASA Astrophysics Data System (ADS)

A decay spectroscopy experiment was performed at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU) to measure the lowenergy excited states in 71-75Ni populated via the ?-decay of 71-75Co. Data collected from this experiment provided enough statistics to establish ?-? coincidence relations leading to partial level schemes for 71Ni and 73Ni. The main goal of this experiment was to investigate the changes in excitation energy of the 5/2- state relative to 9/2+ ground state as well as search for the 1/2- isomeric state in odd-mass nickel isotopes approaching 78Ni. Systematics in shell model calculations using realistic interactions for odd mass 69-77Ni reveal a steady increase in energy spacing between the 1/2- level and 9/2+ ground state but an almost constant energy separation between the 5/2- and 1/2- excited states. In this experiment the positions of the 5/2- states in 71Ni and 73Ni have tentatively been established.

Rajabali, M. M.; Grzywacz, R.; Liddick, S. N.; Bingham, C. R.; Darby, I. G.; Mazzocchi, C.; Rykaczewski, K. P.; Batchelder, J. C.; Baumann, T.; Ginter, T. N.; Mantica, P. F.; Weisshaar, D.; Karny, M.; Miernik, K.; Pfutzner, M.; Ilyushkin, S. V.; Winger, J. A.; Królas, W.

2008-08-01

371

Validation Study Methods for Estimating Odds Ratio in 2 × 2 × J Tables When Exposure is Misclassified  

PubMed Central

Background. Misclassification of exposure variables in epidemiologic studies may lead to biased estimation of parameters and loss of power in statistical inferences. In this paper, the inverse matrix method, as an efficient method of the correction of odds ratio for the misclassification of a binary exposure, was generalized to nondifferential misclassification and 2 × 2 × J tables. Methods. Simple estimates for predictive values when misclassification is nondifferential are presented. Using them, we estimated the corrected log odds ratio and its variance for 2 × 2 × J tables, using the inverse matrix method. A two-step weighted likelihood method was also developed. Moreover, we compared the matrix and inverse matrix methods to the maximum likelihood (MLE) method using a simulation study. Results. In all situations, the inverse matrix method proved to be more efficient than the matrix method. Matrix and inverse matrix methods for nondifferential situations are more efficient than differential misclassification. Conclusions. Although MLE is optimal among all of the methods, it is computationally difficult and requires programming. On the other hand, the inverse matrix method with a simple closed-form presents acceptable efficiency. PMID:24454529

Zare, Najaf; Ayatollahi, Seyyed Mohammad Taghi

2013-01-01

372

Simulated Effects of Odd-Alkane Impurities in a Hexane Monolayer on Graphite  

NASA Astrophysics Data System (ADS)

We present the results of molecular dynamics (MD) simulations of odd alkane impurities present within the hexane (even alkane) monolayer. We simulate a series of temperatures at 3%, 5%, 10%, and 15% impurities of propane (C3H8), pentane (C5H12), heptane (C7H16), nonane (C9H20), and undecane (C11H24) to study both the changes in the monolayer structure and the phase transitions when odd alkanes, whose low-temperature solid structure has been experimentally observed to be much different than that of hexane, occupy space within the hexane monolayer in the low-temperature herringbone (HB) phase. We find that the most significant changes in the melting transition are imposed by impurities whose chain lengths are much different than that of hexane, and the impurities whose chain lengths most closely resemble hexane still give a melting temperature that is within 10K of the pure hexane monolayer melting temperature at high impurity composition. However, due to ``lattice misfits,'' we find that the transition into the intermediate phase exhibits drastic changes as compared to the pure hexane monolayer with the exception of pentane impurities, whose optimal impurity chain length allows the monolayer to exhibit a commensurate phase that is similar to the hexane monolayer, even with a high impurity composition.

Pint, Cary L.

2005-05-01

373

Very light CP-odd scalar in the two-Higgs-doublet model  

NASA Astrophysics Data System (ADS)

We show that a general two-Higgs-doublet model with a very light CP-odd scalar (A) can be compatible with the ? parameter, Br(b-->s?), Rb,Ab, (g-2)? of the muon, Br(?-->A?), and the direct search via the Yukawa process at CERN LEP. For its mass around 0.2 GeV, the muon (g-2)? and Br(?-->A?) data require tan ? to be about 1. Consequently, A can behave like a fermiophobic CP-odd scalar and predominantly decay into a ?? pair, which registers in detectors of high energy collider experiments as a single photon signature when the momentum of A is large. We compute the partial decay width of Z-->AAA and the production rate of ff¯-->ZAA-->Z+ ``??,'' f'f¯-->W+/-AA-->W+/-+ ``??,'' and ff¯-->H+H--->W+W-AA-->W+W-+ ``??'' at high energy colliders such as LEP, Fermilab Tevatron, CERN LHC, and future Linear Colliders. Other production mechanisms of a light A, such as gg-->h-->AA--> ``??,'' are also discussed.

Larios, F.; Tavares-Velasco, G.; Yuan, C.-P.

2001-09-01

374

T-odd correlation in muon neutrino elastic scattering on polarized proton target  

NASA Astrophysics Data System (ADS)

In this paper, we analyze the elastic scattering of the muon neutrino (??) beam on the polarized proton target (PPT) in a presence of induced couplings, and predict how the existence of relative phases between the complex vector (weak magnetism) and axial (induced pseudoscalar) form factors of the proton with left-chirality ?? affects the azimuthal dependence of the differential cross section. The neutrinos are assumed to be Dirac fermions with non-zero mass and CPT symmetry is conserved. We show that the azimuthal asymmetry of recoil protons depends on the neutrino mass, but contributions are very tiny (˜10-5). Analysis of the differential cross section in the case of pure vector and axial couplings at zero ?? mass limit and zero momentum transfer shows that the T-violating phase ?VA generates the T-odd, P-even triple correlation and it could be detected by measuring the asymmetry between the (0,?) and (?,2?) angles. It should be clearly stressed that the considered T-odd observable is not a genuine CP-violating quantity as it can also be produced by the T-invariant contributions due to the final state interactions (FSI). Their magnitude must be precisely estimated and subtracted from the measured observable to extract information on the possible time reversal violation (TRV). We also indicate the possibility of using the PPT in the neutrino telescope.

Sobków, W.

2013-04-01

375

Isomers in three doubly odd Fr-At-Bi ?-decay chains  

NASA Astrophysics Data System (ADS)

The 206-->202At-->198Bi, 204-->200At-->196Bi, and 202-->198At-->194Bi a-decay chains have been studied by standard spectroscopic techniques using an on-line isotope separator. All the studied doubly odd isotopes have at least two isomers, which decay by a combination of the following decay modes: a emission, ?+/EC (electron capture) decay, and internal transition (IT). The internal transition, a highly retarded E3, is the j-forbidden transition between the [?h9/2??i13/2]-10 and the [?h9/2??f5/2]+7 states. The B(E3) values of these IT's together with their energy behavior as a function of the neutron and proton number, compared to the energy difference between the 13/2+(?i13/2) and 5/2-(?f5/2) states in the odd-mass Pb isotones, indicate that these proton-neutron-coupled states have a rather pure shell-model character.

Huyse, M.; Decrock, P.; Dendooven, P.; Reusen, G.; van Duppen, P.; Wauters, J.

1992-10-01

376

? decay to members of favored bands in both even-even and odd-A nuclei  

NASA Astrophysics Data System (ADS)

We present a systematic analysis of ? transitions from the ground state of the parent nucleus to members of the favored band in the daughter nucleus. By using measured ?-decay energies and partial half-lives, the well-known Geiger-Nuttall law is examined for these transitions in both even-even and odd-A nuclei. Accurate expressions are proposed for the evaluation of partial half-lives of these transitions based on microscopic quantum tunneling theory. The calculated partial ?-decay half-lives are in good agreement with the experimental data. The root-mean-square deviations of our expressions are ??{?i=1n[(log10Tcali-log10Texpi)]2/n}1/2=0.41 for the even-even nuclei and ?=0.35 for the odd-A nuclei. A set of parameters for the Viola-Seaborg (V-S) formula is also given by fitting the available experimental data. The proposed expressions and the V-S formula with our parameters will help experimentalists quickly evaluate the expected ?-decay half-lives during the design of experiments and check the measured decay energies and half-lives after experiments.

Zhang, Xin; Xu, Chang; Ren, Zhongzhou

2011-10-01

377

Logarithm Odds Maps for Shape Representation Kilian M. Pohl1,2, John Fisher2, Martha Shenton1, Robert W. McCarley1, W. Eric L.  

E-print Network

Logarithm Odds Maps for Shape Representation Kilian M. Pohl1,2, John Fisher2, Martha Shenton1 segmentation algorithm. We do so by embedding the manifold of Signed Distance Maps (SDM) into the linear spaceOdds), that explicitly addresses the issues above. LogOdds maps form a vector space and as such can be composed via

Pohl, Kilian M.

378

Physical activity in youth  

PubMed Central

Abstract Objective To determine the unadjusted and adjusted associations between developmental, environmental, psychological, social, or demographic factors and meeting the Health Canada physical activity standard. Design Survey. Setting Saskatoon, Sask. Participants Every student in grades 5 to 8 in Saskatoon was asked to complete the Saskatoon School Health Survey; 4197 students did so. Main outcome measures Whether students met the Health Canada standard for daily physical activity and associated risk factors for not meeting the standard. Results Among the 4197 youth who participated in the survey, only 7% met the Health Canada standard of daily physical activity longer than 1 hour of somewhat hard intensity or higher. Although there were 23 unadjusted factors associated with youth meeting the Health Canada standard, only 5 were significant after multivariate adjustment: 1) their fathers were employed (odds ratio [OR] 2.29, P = .027), 2) their parents watched them participate in physical activities or sports every day (OR 1.23, P < .001), 3) their friends encouraged them to do physical activities or sports every day (OR 1.19, P < .001), 4) their friends or classmates did not tease them for not doing well at physical activities or sports every day (OR 1.20, P = .001), and 5) they played sports or physical activities with coaches or instructors more than 4 times a week (OR 1.44, P < .001). Conclusion Given the low rates of physical activity among youth, we believe that a reduced list of independent risk indicators is required to focus our limited human and financial resources for successful intervention in the community. PMID:22267641

Lemstra, Mark; Nielsen, Ghita; Rogers, Marla; Thompson, Adam; Moraros, John

2012-01-01

379

An Inquiry-Based Course Using "Physics?" in Cartoons and Movies  

ERIC Educational Resources Information Center

Books, cartoons, movies, and video games provide engaging opportunities to get both science and nonscience students excited about physics. An easy way to use these media in one's classroom is to have students view clips and identify unusual events, odd physics, or list things that violate our understanding of the physics that governs our universe.…

Rogers, Michael

2007-01-01

380

Nuclear structure of the odd-neutron radon isotopes radon-203,205,207  

NASA Astrophysics Data System (ADS)

High-spin states in the odd-neutron nuclei 203,205,207Rn have been investigated following heavy-ion fusion evaporation reaction experiments at Yale University, the University of Jyväskylä, and Argonne National Laboratory. The emitted gamma rays were measured at each location using the Jurosphere, YRAST Ball and Gammasphere detector arrays, respectively. Fusion products were detected at Jyväskylä using the gas-filled recoil separator RITU and at Argonne with the Fragment Mass Analyzer. Internal conversion electrons were measured at Argonne using the ICE Ball array of mini-orange spectrometers. Experiments that were carried out include excitation function measurements, multi-gamma coincidences, angular distribution measurements, polarization measurements, and internal conversion electron spectroscopy. No gamma-ray transitions above the 13/2+ state had been reported for any of these isotopes prior to this work. Nuclear decay schemes were constructed for 203,205,207Rn up to a spin of ~29/2? and an excitation energy of ~4 MeV. The states built on the 13/2 + isomers feature strongly in the decay of these nuclei. A roughly harmonic ?I = 2 sequence assigned the ?( i13/2-1) configuration was observed in each odd-A nucleus. The energy level spacing of the 17/2+, 21/2+ and 25/2+ states relative to the 13/2 + state is similar to the 0+, 2+, 4 +, 6+ spacing observed in the neighboring even-even isotopes. The decreasing E(17/2+) energies and increasing R(/) /(/) values with decreasing neutron number reflect the increasing collectivity in the lighter isotopes as more neutron holes are added to the system. In contrast to the even-even neighbors, no evidence was found in any of the odd-A isotopes for isomeric states with lifetimes of tens of nanoseconds. An unobserved isomer in 205Rn with a lifetime of a few nanoseconds is suggested to exist near the top of the most intense cascade to account for the essentially isotropic angular distributions of the transitions in this sequence. A possible explanation for the lack of such long-lived isomers in the odd-A isotopes is the deformation-driving effects of the odd neutron, allowing additional configuration mixing and leading to increased collectivity at higher spin. A cascade of magnetic dipole transitions was observed in 205Rn and interpreted in terms of the shears mechanism. Its assigned configuration is the ?(i13/2-1) ? ?( i13/22). A short cascade of low-energy transitions was observed in 203Rn, but the shortness of the cascade and lack of other evidence precludes a shears band assignment for this sequence at this time. Such a band was not observed in 207Rn, which may be due to the fact that its core is not sufficiently polarized to allow the perpendicular coupling of the proton and neutron angular momentum vectors required for the manifestation of a shears band structure. A series of IBM and IBFM calculations were carried out in order to interpret the structure of the light radon nuclei in terms of a collective model. Excitation energies for the low-lying levels in the series of even- even isotopes 198-206Rn are well reproduced by the IBM predictions. Good agreement is also obtained between the IBFM calculations and the data obtained during the course of this work for the ?I = 2 sequence built on the 13/2+ states in 203Rn and 205 Rn.

Novak, John R.

381

Development of the quantum theory of T-odd asymmetries for prescission and evaporated third particles in ternary nuclear fission induced by cold polarized neutrons  

SciTech Connect

A comparative analysis of the results obtained by experimentally and theoretically studying T-odd asymmetries for various third particles in the true and delayed ternary nuclear fission induced by cold polarized neutrons was performed. It was confirmed that the appearance of these asymmetries was associated with the effect of rotation of a polarized system undergoing fission on the angular distributions of prescission and evaporated third particles with respect to the direction along which the emerging fission fragments flew apart, this effect being determined by the Coriolis interaction of the rotational and the internalmotion of the fissioning system. A quantum-mechanical description of particle motion in a rotating coordinate system was generalized to the case where gamma-ray emission was present. It was shown that the separation of the motions of an axially symmetric fissile system into a rotational and an internal motion was valid in the external region as well, where ternary-fission products had already been formed, if it was considered that the motion of fission fragments was tightly connected with the system symmetry axis, which rotated in the laboratory frame. It was found that the dependence of the fissile-system moment of inertia appearing in the Coriolis interaction Hamiltonian on the distance between the fission fragments flying apart generated an additional phase in the amplitude of the radial distribution of fission fragments. It was shown that this phase might change sizably the contribution of the interference between fission amplitudes of neutron resonances excited in a fissile compound nucleus to the absolute values of T -odd asymmetries, especially for third particles such as neutrons and photons, which interacted only slightly with fission fragments.

Kadmensky, S. G., E-mail: kadmensky@phys.vsu.ru [Voronezh State University (Russian Federation); Bunakov, V. E., E-mail: bunakov@vb3190.spbu.ru [Russian Academy of Sciences, Petersburg Nuclear Physics Institute (Russian Federation); Titova, L. V.; Kadmensky, S. S. [Voronezh State University (Russian Federation)

2011-10-15

382

Physical activity level and its sociodemographic correlates in a peri-urban Nepalese population: a cross-sectional study from the Jhaukhel-Duwakot health demographic surveillance site  

PubMed Central

Background Physical inactivity is a leading risk factor for cardiovascular and other noncommunicable diseases in high-, low- and middle-income countries. Nepal, a low-income country in South Asia, is undergoing an epidemiological transition. Although the reported national prevalence of physical inactivity is relatively low, studies in urban and peri-urban localities have always shown higher prevalence. Therefore, this study aimed to measure physical activity in three domains—work, travel and leisure—in a peri-urban community and assess its variations across different sociodemographic correlates. Methods Adult participants (n?=?640) from six randomly selected wards of the Jhaukhel-Duwakot Health Demographic Surveillance Site (JD-HDSS) near Kathmandu responded to the Global Physical Activity Questionnaire. To determine total physical activity, we calculated the metabolic equivalent of task in minutes/week for each domain and combined the results. Respondents were categorized into high, moderate or low physical activity. We also calculated the odds ratio for low physical activity in various sociodemographic variables and self-reported cardiometabolic states. Results The urbanizing JD-HDSS community showed a high prevalence of low physical activity (43.3%; 95% CI 39.4–47.1). Work-related activity contributed most to total physical activity. Furthermore, women and housewives and older, more educated and self-or government-employed respondents showed a greater prevalence of physical inactivity. Respondents with hypertension, diabetes or overweight/obesity reported less physical activity than individuals without those conditions. Only 5% of respondents identified physical inactivity as a cardiovascular risk factor. Conclusions Our findings reveal a high burden of physical inactivity in a peri-urban community of Nepal. Improving the level of physical activity involves sensitizing people to its importance through appropriate multi-sector strategies that provide encouragement across all sociodemographic groups. PMID:24628997

2014-01-01

383

Motivation for physical activity of psychiatric patients when physical activity was offered as part of treatment.  

PubMed

This study examined motivation variables, self-determination and self-schema, in relation to physical activity, among psychiatric patients with experience with physical activity as part of their treatment. Participants were patients (N=109) from 15 psychiatric hospitals or day-care institutions. Data were collected by questionnaires. A positive relationship between physical activity level, positive experiences of the activity and higher degree of self-determination and exercise self-schema was expected. Intrinsically regulated motives (motivated by the experience of the activity in itself) were positively and significantly related to physical activity level and the experience of decrease in symptoms during physical activity, and extrinsically regulated motives were negatively correlated with physical activity level. Intrinsically regulated motives gave an odds ratio of 20.0 for being physically active rather than inactive. Holding an exercise self-schema gave an odds ratio of 6.1 for being physically active. The majority of the patients (57.4%) reported that physical activity decreased their illness symptoms, but a few (11.9%) reported negative effects. The findings demonstrated that psychiatric patients do not differ from the normal population in relation to motivational mechanisms, even if they may experience more barriers to physical activities because of their illness. Therefore, in trying to motivate psychiatric patients, it is important to make physical activity as intrinsically motivating as possible by focusing on the positive experiences of the activity itself, as well as helping to develop an exercise self-schema. PMID:17121640

Sørensen, M

2006-12-01

384

Physics Central: Fiddle Physics  

NSDL National Science Digital Library

This PhysicsCentral article describes the physics behind violins. The article discusses the mechanics of violin construction and how violinists produce sound. It includes labeled pictures of violin parts, animations of how the violin bow works, and other helpful images.

Popkin, Gabriel

2009-11-16

385

DEPARTMENT OF PHYSICS Physics 32100  

E-print Network

DEPARTMENT OF PHYSICS Syllabus Physics 32100 Modern Physics for Engineers Designation to one- electron atoms, atomic shell structure and periodic table; nuclear physics, relativity. Prerequisites: Prereq.: Physics 20800 or equivalent, Math 20300 or 20900 (elective for Engineering students

Lombardi, John R.

386

DEPARTMENT OF PHYSICS Physics 21900  

E-print Network

DEPARTMENT OF PHYSICS Syllabus Physics 21900 Physics for Architecture Students Designation suggested material: Giancoli, Physics, Principles with Applications (6th ed.) (required), Prentice Hall Giancoli, Physics, Principles with Applications, Student Guide (6th ed.) (optional), Prentice Hall Course

Lombardi, John R.

387

Dietary patterns and odds of Type 2 diabetes in Beirut, Lebanon: a case–control study  

PubMed Central

Background In Lebanon, Type 2 diabetes (T2D) has a major public health impact through high disease prevalence, significant downstream pathophysiologic effects, and enormous financial liabilities. Diet is an important environmental factor in the development and prevention of T2D. Dietary patterns may exert greater effects on health than individual foods, nutrients, or food groups. The objective of this study is to examine the association between dietary patterns and the odds of T2D among Lebanese adults. Methods Fifty-eight recently diagnosed cases of T2D and 116 population-based age, sex, and place of residence matched control participants were interviewed. Data collection included a standard socio-demographic and lifestyle questionnaire. Dietary intake was evaluated by a semi-quantitative 97-item food frequency questionnaire. Anthropometric measurements including weight, height, waist circumference, and percent body fat were also obtained. Dietary patterns were identified by factor analysis. Multivariate logistic regression analysis was used to evaluate the associations of extracted patterns with T2D. Pearson correlations between these patterns and obesity markers, energy, and nutrient intakes were also examined. Results Four dietary patterns were identified: Refined Grains & Desserts, Traditional Lebanese, Fast Food and Meat & Alcohol. While scores of the “Refined Grains & Desserts” had the highest correlations with energy (r?=?0.74) and carbohydrates (r?=?0.22), those of the “Fast Food” had the highest correlation with fat intake (r?=?0.34). After adjustment for socio-demographic and lifestyle characteristics, scores of the Refined Grains & Desserts and Fast Food patterns were associated with higher odds of T2D (OR: 3.85, CI: 1.13-11.23 and OR: 2.80, CI: 1.14-5.59; respectively) and scores of the Traditional Lebanese pattern were inversely associated with the odds of T2D (OR: 0.46, CI: 0.22-0.97). Conclusions The findings of this study demonstrate direct associations of the Refined Grains & Desserts and Fast Food patterns with T2D and an inverse association between the Traditional Lebanese pattern and the disease among Lebanese adults. These results may guide the development of nutrition interventions for the prevention and management of T2D among Lebanese adults. PMID:23270372

2012-01-01

388

Physical state for non-relativistic quantum electrodynamics  

E-print Network

A physical subspace and physical Hilbert space associated with asymptotic fields of nonrelativistic quantum electrodynamics are constructed through the Gupta-Bleuler procedure. Asymptotic completeness is shown and a physical Hamiltonian is defined on the physical Hilbert space.

Fumio Hiroshima; Akito Suzuki

2008-07-31

389

Odd-skipped related 2 regulates genes related to proliferation and development  

SciTech Connect

Cell proliferation is a biological process in which chromosomes replicate in one cell and equally divide into two daughter cells. Our previous findings suggested that Odd-skipped related 2 (Osr2) plays an important role in cellular quiescence and proliferation under epigenetic regulation. However, the mechanism used by Osr2 to establish and maintain proliferation is unknown. To examine the functional role of Osr2 in cell proliferation, we analyzed its downstream target genes using microarray analysis following adenovirus-induced overexpression of Osr2 as well as knockdown with Osr2 siRNA, which showed that Osr2 regulates a multitude of genes involved in proliferation and the cell cycle, as well as development. Additional proliferation assays also indicated that Osr2 likely functions to elicit cell proliferation. Together, these results suggest that Osr2 plays important roles in proliferation and development.

Kawai, Shinji, E-mail: skawai@dent.osaka-u.ac.jp [Department of Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871 (Japan)] [Department of Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871 (Japan); Abiko, Yoshimitsu [Department of Biochemistry, Nihon University School of Dentistry at Matsudo, Matsudo-Chiba 271-8587 (Japan)] [Department of Biochemistry, Nihon University School of Dentistry at Matsudo, Matsudo-Chiba 271-8587 (Japan); Amano, Atsuo [Department of Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871 (Japan)] [Department of Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871 (Japan)

2010-07-23

390

Electromagnetic moments of odd-A Po193-203,211 isotopes  

NASA Astrophysics Data System (ADS)

Hyperfine splitting parameters have been measured for the neutron-deficient odd-mass polonium isotopes and isomers Po193-203g,m, Po209,211. The measurement was performed at the ISOLDE (CERN) online mass separator using the in-source resonance ionization spectroscopy technique. The magnetic dipole moments ? and spectroscopic electric quadrupole moments QS have been deduced. Their implication for the understanding of nuclear structure in the vicinity of the closed proton shell at Z =82 and the neutron mid-shell at N =104 is discussed. For the most neutron-deficient nuclei (A =193,195,197), a deviation of ? and QS from the nearly constant values for heavier polonium nuclei was observed. Particle-plus-rotor calculations with static oblate deformation describe the electromagnetic moments for these nuclei well, provided a gradual increase of a mean deformation when going to lighter masses is assumed for the polonium nuclei with A <198.

Seliverstov, M. D.; Cocolios, T. E.; Dexters, W.; Andreyev, A. N.; Antalic, S.; Barzakh, A. E.; Bastin, B.; Büscher, J.; Darby, I. G.; Fedorov, D. V.; Fedosseev, V. N.; Flanagan, K. T.; Franchoo, S.; Huber, G.; Huyse, M.; Keupers, M.; Köster, U.; Kudryavtsev, Yu.; Marsh, B. A.; Molkanov, P. L.; Page, R. D.; Sjödin, A. M.; Stefan, I.; Van Duppen, P.; Venhart, M.; Zemlyanoy, S. G.

2014-03-01

391

Odd-parity topological superconductor with nematic order: Application to CuxBi2Se3  

NASA Astrophysics Data System (ADS)

CuxBi2Se3 was recently proposed as a promising candidate for time-reversal-invariant topological superconductors. In this work, we argue that the unusual anisotropy of the Knight shift observed by Zheng and co-workers (unpublished), taken together with specific heat measurements, provides strong support for an unconventional odd-parity pairing in the two-dimensional Eu representation of the D3d crystal point group, which spontaneously breaks the threefold rotational symmetry of the crystal, leading to a subsidiary nematic order. We predict that the spin-orbit interaction associated with hexagonal warping plays a crucial role in pinning the two-component order parameter and makes the superconducting state generically fully gapped, leading to a topological superconductor. Experimental signatures of the Eu pairing related to the nematic order are discussed.

Fu, Liang

2014-09-01

392

Mixed symmetry states and {beta} decays of odd-A Xe to I isotopes  

SciTech Connect

The energy spectra of the parent and daughter nuclei in the {beta} decays ({sup 121-127}Xe,{beta}{sup +121-127}I) are considered in the interacting boson fermion model (IBFM-2) with the g{sub 7/2},d{sub 5/2},d{sub 3/2},s{sub 1/2}, and h{sub 11/2} single-particle orbitals. Electromagnetic transition probabilities and branching ratios in odd {sup 121-127}I isotopes are investigated. Special attention is given to the occurrence of mixed symmetry states, and the F-spin structures of the wave functions are analyzed. The log{sub 10}ft values of the allowed {beta} decay transitions are calculated. It is found that the IBFM-2 results agree with the experimental data quite well.

Al-Khudair, Falih H. [Department of Physics, Tsinghua University, Beijing 100084 (China); Center of Nuclear Theory, Lanzhou Heavy Ion National Laboratory, Lanzhou, 730000 (China) and Department of Physics, College of Education, Basrah University, Basrah (Iraq)

2009-07-15

393

Chirality in odd-A Rh isotopes within the triaxial particle rotor model  

SciTech Connect

By adopting the fully quantal triaxial particle-rotor model, the candidate chiral doublet bands in odd-A nuclei {sup 103}Rh and {sup 105}Rh with {pi}g{sub 9/2}{sup -1} x {nu}h{sub 11/2}{sup 2} configuration are studied. For the doublet bands in both nuclei, agreement is excellent for the observed energies over the entire spin range and B(M1)/B(E2) at higher spin range. The evolution of the chiral geometry with angular momentum is discussed in detail by using the angular momentum components and their probability distributions. Chirality is found to change from chiral vibration to nearly static chirality at spin I=37/2 and back to another type of chiral vibration at higher spin. The influence of the triaxial deformation {gamma} is also studied.

Qi, B.; Wang, S. Y. [Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Shandong University at Weihai, Weihai 264209 (China); Zhang, S. Q. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, 100871 Beijing (China); Meng, J. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, 100871 Beijing (China); School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191 (China); Department of Physics, University of Stellenbosch, Matieland 7602 (South Africa); Koike, T. [Department of Physics, Tohoku University, Sendai 980-8578 (Japan)

2011-03-15

394

Odd-skipped related 2 is epigenetically regulated in cellular quiescence  

SciTech Connect

Cellular behavior and development are extensively altered during the transition from cell cycle into quiescence, though the mechanism involved in establishing and maintaining quiescence is largely unknown. We found that Odd-skipped related 2 (Osr2) was up-regulated during cellular quiescence by serum starvation as well as culturing to confluence. To investigate the regulatory mechanism of Osr2 under these conditions, we characterized the mouse Osr2 promoter. CpG islands in the flanking region of the transcription start site were predominantly methylated in exponentially growing cells, resulting in silencing of Osr2 expression. In addition, CpG demethylation in quiescence caused activation of Osr2 expression, while acetylation of the H3 and H4 histones during quiescence also led to an increase in Osr2 expression. These results suggest that epigenetically regulated Osr2 plays an important role in cellular quiescence and proliferation.

Kawai, Shinji, E-mail: skawai@dent.osaka-u.ac.jp [Department of Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871 (Japan)] [Department of Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871 (Japan); Amano, Atsuo [Department of Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871 (Japan)] [Department of Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871 (Japan)

2010-06-11

395

Limiting P-Odd Interactions of Cosmic Fields with Electrons, Protons, and Neutrons  

NASA Astrophysics Data System (ADS)

We propose methods for extracting limits on the strength of P-odd interactions of pseudoscalar and pseudovector cosmic fields with electrons, protons, and neutrons, by exploiting the static and dynamic parity-nonconserving amplitudes and electric dipole moments they induce in atoms. Candidates for such fields are dark matter (including axions) and dark energy, as well as several more exotic sources described by Lorentz-violating standard model extensions. Atomic calculations are performed for H, Li, Na, K, Rb, Cs, Ba+, Tl, Dy, Fr, and Ra+. From these calculations and existing measurements in Dy, Cs, and Tl, we constrain the interaction strengths of the parity-violating static pseudovector cosmic field to be 7×10-15 GeV with an electron, and 3×10-8 GeV with a proton.

Roberts, B. M.; Stadnik, Y. V.; Dzuba, V. A.; Flambaum, V. V.; Leefer, N.; Budker, D.

2014-08-01

396

Inter-band B(E2) transition strengths in odd-mass heavy deformed nuclei  

E-print Network

Inter-band B(E2) transition strengths between different normal parity bands in 163Dy and 165Er are described using the pseudo-SU(3) model. The Hamiltonian includes Nilsson single-particle energies, quadrupole-quadrupole and pairing interactions with fixed, parametrized strengths, and three extra rotor terms used to fine tune the energy spectra. In addition to inter-band transitions, the energy spectra and the ground state intra-band B(E2) strengths are reported. The results show the pseudo-SU(3) shell model to be a powerful microscopic theory for a description of the normal parity sector in heavy deformed odd-A nuclei.

C. E. Vargas; J. G. Hirsch; J. P. Draayer

2001-09-21

397

Odd parity pairing and nodeless antiphase s± in iron-based superconductors  

NASA Astrophysics Data System (ADS)

We discuss the sign change of superconducting order parameters in both real and reciprocal spaces when the odd parity spin singlet pairing proposed recently by Hu [Phys. Rev. X 3, 031004 (2013), 10.1103/PhysRevX.3.031004] is allowed. We show that in this case an nodeless antiphase s± can be generated. In a 2-Fe Brilliouin zone (BZ), sign change exists between two hole pockets and between two electron pockets. In a 1-Fe BZ, which includes two 2-Fe BZs, the sign change is between two 2-Fe BZs, which leads to a d-wave type sign distribution on the electron pockets, namely, an antiphase s± state with no symmetry protected gapless node on the electron pockets. This sign change character consistently explains experimental results related to sign change properties measured on both iron-pnictides and iron-chalcogenides.

Hao, Ningning; Hu, Jiangping

2014-01-01

398

Limiting p-odd interactions of cosmic fields with electrons, protons, and neutrons.  

PubMed

We propose methods for extracting limits on the strength of P-odd interactions of pseudoscalar and pseudovector cosmic fields with electrons, protons, and neutrons, by exploiting the static and dynamic parity-nonconserving amplitudes and electric dipole moments they induce in atoms. Candidates for such fields are dark matter (including axions) and dark energy, as well as several more exotic sources described by Lorentz-violating standard model extensions. Atomic calculations are performed for H, Li, Na, K, Rb, Cs, Ba^{+}, Tl, Dy, Fr, and Ra^{+}. From these calculations and existing measurements in Dy, Cs, and Tl, we constrain the interaction strengths of the parity-violating static pseudovector cosmic field to be 7×10^{-15}??GeV with an electron, and 3×10^{-8}??GeV with a proton. PMID:25192086

Roberts, B M; Stadnik, Y V; Dzuba, V A; Flambaum, V V; Leefer, N; Budker, D

2014-08-22

399

Odd nitrogen during the MAP/GLOBUS 1983 campaign - Theoretical considerations  

NASA Technical Reports Server (NTRS)

The paper reviews the chemical processes involved in the formation and destruction of active nitrogen in the stratosphere and indicates that transport processes play an important role in the behavior of these species. Vertical profiles measured during the MAP/GLOBUS 1983 campaign are compared to distributions calculated by a number of one-dimensional models. An intercomparison between six of these models shows that, if some quantitative differences attributed to different model input are noticeable, the same type of behavior is predicted for NO and NO2 by all models. Although the observed concentration of species belonging to the odd nitrogen family should be highly variable, as a result of dynamical disturbances, most data obtained during the campaign appear to be consistent with the chemical scheme currently used in photochemical models.

Brasseur, Guy; Cariolle, Daniel; De Rudder, Anne; Gray, Lesley J.; Pyle, John A.

1987-01-01

400

Meissner effect probing of odd-frequency triplet pairing in superconducting spin valves  

NASA Astrophysics Data System (ADS)

Superconducting correlations which are long ranged in magnetic systems have attracted much attention due to their spin-polarization properties and potential use in spintronic devices. Whereas experiments have demonstrated the slow decay of such correlations, it has proven more difficult to obtain a smoking gun signature of their odd-frequency character which is responsible, e.g., for their gapless behavior. Here we demonstrate that the magnetic susceptibility response of a normal metal in contact with a superconducting spin valve provides precisely this signature, namely, in the form of an anomalous positive Meissner effect, which may be tuned back to a conventional negative Meissner response simply by altering the magnetization configuration of the spin valve.

Alidoust, Mohammad; Halterman, Klaus; Linder, Jacob

2014-02-01

401

Even-odd effect in multifragmentation products: the footprints of evaporation  

E-print Network

The analysis of experimental production cross-sections of intermediate-mass fragments (IMF) of several nuclear reactions at relativistic energy, measured at the FRS, GSI Darmstadt, revealed a very strong and complex even-odd staggering. The origin of this effect is related to the condensation process of hot nuclei while cooling down by evaporation. The characteristics of the staggering correlate strongly with the lowest particle separation energy of the final experimentally observed nuclei, but not with the binding energy. The study confirms the important role of the de-excitation process in multifragmentation reactions, and indicates that sequential decay strongly influences the yields of IMF, which are often used to extract information on the nature of nuclear reactions at high energies.

M. V. Ricciardi; K. -H. Schmidt; A. Keli?-Heil

2010-07-02

402

The even-odd systematics in R-process nuclide abundances  

NASA Technical Reports Server (NTRS)

The paper reports and discusses solar system N(R) abundances for nuclides A greater than 70, obtained as differences between measured solar system abundances and calculated S-process contributions. The abundance peak at A of about 163 in the rare earth element region reveals properties which are similar to those of the R-process peaks corresponding to magic neutron numbers N = 82 and N = 126. Systematic differences in the N(R) abundances of even-A and odd-A nuclides are restricted to specific mass regions. It is concluded that these differences are most probably related to the properties of nuclear species during beta(-) decay to the stability valley.

Marti, K.; Suess, H. E.

1988-01-01

403

Correcting "winner's curse" in odds ratios from genomewide association findings for major complex human diseases  

PubMed Central

Genome-wide association studies (GWAS) provide an important approach for identifying common genetic variants that predispose to human disease. However, odds ratio (OR) estimates for the reported findings from GWAS discovery data are typically affected by a bias away from the null sometimes referred to the “winner's curse”. Also standard confidence intervals (CIs) may have far from the desired coverage rates. We applied a bias reduction method to GWAS findings from several major complex human diseases, including breast cancer, colorectal cancer, lung cancer, prostate cancer, type I diabetes and type II diabetes. We found the simple bias correction procedure allows one to estimate bias-adjusted ORs that have substantial consistency with ORs from subsequent replication studies; and that corresponding selection-adjusted CIs appear to help quantify the uncertainty of the findings. Selection-adjusted ORs and CIs can provide a reliable summary of GWAS data, and can help to choose single nucleotide polymorphisms (SNPs) for subsequent validation studies. PMID:19639606

Zhong, Hua; Prentice, Ross L.

2009-01-01

404

Gamow-Teller response in deformed even and odd neutron-rich Zr and Mo isotopes  

E-print Network

Beta-decay properties of neutron-rich Zr and Mo isotopes are investigated within a microscopic theoretical approach based on the proton-neutron quasiparticle random-phase approximation. The underlying mean field is described self-consistently from deformed Skyrme Hartree-Fock calculations with pairing correlations. Residual separable particle-hole and particle-particle forces are also included in the formalism. The structural evolution in these isotopic chains including both even and odd isotopes is analyzed in terms of the equilibrium deformed shapes. Gamow-Teller strength distributions, beta-decay half-lives, and beta-delayed neutron-emission probabilities are studied, stressing their relevance to describe the path of the nucleosynthesis rapid neutron capture process.

P. Sarriguren; A. Algora; J. Pereira

2014-03-05

405

Signatures of shape transitions in odd-A neutron-rich rubidium isotopes  

SciTech Connect

The isotopic evolution of the ground-state nuclear shapes and the systematics of one-quasiproton configurations are studied in odd-A Rubidium isotopes. We use a self-consistent Hartree-Fock-Bogoliubov formalism based on the Gogny energy density functional with two parametrizations, D1S and D1M, and implemented with the equal-filling approximation. We find clear signatures of a sharp shape transition at N=60 in both the charge radii and spin parity of the ground states, which are robust, consistent with each other, and in agreement with experiment. We point out that the combined analysis of these two observables could be used to predict unambiguously new regions where shape transitions might develop.

Rodriguez-Guzman, R.; Sarriguren, P. [Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid (Spain); Robledo, L. M. [Departamento de Fisica Teorica, Modulo 15, Universidad Autonoma de Madrid, E-28049 Madrid (Spain)

2010-12-15

406

What are the Odds? The Neural Correlates of Active Choice during Gambling  

PubMed Central

Gambling is a widespread recreational activity and requires pitting the values of potential wins and losses against their probability of occurrence. Neuropsychological research showed that betting behavior on laboratory gambling tasks is highly sensitive to focal lesions to the ventromedial prefrontal cortex (vmPFC) and insula. In the current study, we assessed the neural basis of betting choices in healthy participants, using functional magnetic resonance imaging of the Roulette Betting Task. In half of the trials, participants actively chose their bets; in the other half, the computer dictated the bet size. Our results highlight the impact of volitional choice upon gambling-related brain activity: Neural activity in a distributed network – including key structures of the reward circuitry (midbrain, striatum) – was higher during active compared to computer-dictated bet selection. In line with neuropsychological data, the anterior insula and vmPFC were more activated during self-directed bet selection, and responses in these areas were differentially modulated by the odds of winning in the two choice conditions. In addition, responses in the vmPFC and ventral striatum were modulated by the bet size. Convergent with electrophysiological research in macaques, our results further implicate the inferior parietal cortex (IPC) in the processing of the likelihood of potential outcomes: Neural responses in the IPC bilaterally reflected the probability of winning during bet selection. Moreover, the IPC was particularly sensitive to the odds of winning in the active-choice condition, when the processing of this information was required to guide bet selection. Our results indicate an important role of the IPC in human decision-making under risk and help to integrate neuropsychological data of risk-taking following vmPFC and insula damage with models of choice derived from human neuroimaging and monkey electrophysiology. PMID:22529770

Studer, Bettina; Apergis-Schoute, Annemieke M.; Robbins, Trevor W.; Clark, Luke

2012-01-01

407

What are the Odds? The Neural Correlates of Active Choice during Gambling.  

PubMed

Gambling is a widespread recreational activity and requires pitting the values of potential wins and losses against their probability of occurrence. Neuropsychological research showed that betting behavior on laboratory gambling tasks is highly sensitive to focal lesions to the ventromedial prefrontal cortex (vmPFC) and insula. In the current study, we assessed the neural basis of betting choices in healthy participants, using functional magnetic resonance imaging of the Roulette Betting Task. In half of the trials, participants actively chose their bets; in the other half, the computer dictated the bet size. Our results highlight the impact of volitional choice upon gambling-related brain activity: Neural activity in a distributed network - including key structures of the reward circuitry (midbrain, striatum) - was higher during active compared to computer-dictated bet selection. In line with neuropsychological data, the anterior insula and vmPFC were more activated during self-directed bet selection, and responses in these areas were differentially modulated by the odds of winning in the two choice conditions. In addition, responses in the vmPFC and ventral striatum were modulated by the bet size. Convergent with electrophysiological research in macaques, our results further implicate the inferior parietal cortex (IPC) in the processing of the likelihood of potential outcomes: Neural responses in the IPC bilaterally reflected the probability of winning during bet selection. Moreover, the IPC was particularly sensitive to the odds of winning in the active-choice condition, when the processing of this information was required to guide bet selection. Our results indicate an important role of the IPC in human decision-making under risk and help to integrate neuropsychological data of risk-taking following vmPFC and insula damage with models of choice derived from human neuroimaging and monkey electrophysiology. PMID:22529770

Studer, Bettina; Apergis-Schoute, Annemieke M; Robbins, Trevor W; Clark, Luke

2012-01-01

408

Odds of abuse associated with retinal hemorrhages in children suspected of child abuse  

PubMed Central

Purpose To describe the prevalence of retinal hemorrhages in children being evaluated for abusive head trauma and quantify the association between the likelihood of abuse and the presence and severity of retinal hemorrhages. Methods Retrospective cross-sectional study of 110 children aged 15 months or younger who were evaluated for abusive head trauma and received an ophthalmological examination. The child abuse specialist's diagnosis was categorized as definite accident, probable accident, probable abuse, or definite abuse, according to an algorithm that excluded eye findings. Retinal hemorrhage severity was scored on a 12-point scale (6 points per eye) based on type, size, location, and extent. Higher scores indicated greater severity of eye findings. Results Seventy-four percent of children were under 6 months old. Forty-five percent of cases were definite-abuse and 37% were definite-accident. The prevalence of retinal hemorrhages was 32%. Across all subjects, the presence of retinal hemorrhage was highly associated with definite or probable abuse versus definite or probable accident (age-adjusted odds ratio 5.4 [95% CI, 2.1-13.6]). The odds ratio in children under age 6 months (n = 81) was 11.7 (95% CI, 2.9-66.8). Retinal hemorrhage severity was higher in abuse versus accident (p < 0.0001) and correlated positively with abuse (Spearman r = 0.406, p < 0.0001). Scores above 8 (n = 13) were only present in abused children Conclusions Retinal hemorrhages are highly associated with abusive head trauma, particularly in children under age 6 months. Increasing retinal hemorrhage severity is correlated with increasing likelihood of abuse. PMID:19541267

Binenbaum, Gil; Mirza-George, Naureen; Christian, Cindy W.; Forbes, Brian J.

2009-01-01

409

Cosmology and New Physics  

E-print Network

A comparison of the standard models in particle physics and in cosmology demonstrates that they are not compatible, though both are well established. Basics of modern cosmology are briefly reviewed. It is argued that the measurements of the main cosmological parameters are achieved through many independent physical phenomena and this minimizes possible interpretation errors. It is shown that astronomy demands new physics beyond the frameworks of the (minimal) standard model in particle physics. More revolutionary modifications of the basic principles of the theory are also discussed.

A. D. Dolgov

2006-06-21

410

Physics for Physical Sciences  

NSDL National Science Digital Library

Created by Jason Dicker at Launceston College in Tasmania, these materials present information and examples of the physics concepts of radioactivity, motion, and current electricity. The Radioactivity portion contains sections on natural types of radioactivity, radioactive decay, and problems for students such as designing "a series of experiments to show that 'radioactivity' has nothing to do with sunlight" without using a Geiger counter. The Motion portion contains pages about vectors, projectile motion, momentum, and force. The final section, Current Electricity, has links to pages about charge and current, voltage, resistance, and some problems about electricity for students to solve. This is an excellent resource for physics educators in higher education to use to explain physics principles in the physical sciences.

Dicker, Jason

2008-01-30

411

Of Physics & Astronomy. MEDICAL PHYSICS  

E-print Network

and may usefully help physics/medical physics students with module choices. #12;Medical Physics Guide 2013Department Of Physics & Astronomy. MEDICAL PHYSICS 2013-2014 Sept 2013 #12;Medical Physics Guide 2013-2014 2 1. Overview Two programmes of study are offered jointly by the Department of Physics

Crowther, Paul

412

LIMS data - Inferred stratospheric distribution of NOx and HOx trace constituents and the calculated odd nitrogen budget  

NASA Technical Reports Server (NTRS)

LIMS, SAMS, SBUV and in-situ data have been used to infer species not measured but which are of photochemical interest, e.g., O(3P), O(1D), NO, N2O5, OH, HO2, ClO and HCl. (LIMS = limb infrared monitor of the stratosphere; SAMS = stratospheric and mesospheric sounder; and SBUV = solar backscattered ultraviolet instrument.) Production and loss of odd nitrogen have been calculated and estimates have been made of the odd nitrogen transport due to adiabatically driven circulation derived from LIMS data. Data used from LIMS include O3, NO2, HNO3, H2O and T. CH4 and N2O were taken from SAMS and the UV solar flux from the SBUV instrument. Species were inferred for periods in October, December, March and May. Results for December are discussed. Results indicate: (1) maximum stratospheric odd nitrogen levels of 25 ppbv; (2) evidence of odd nitrogen transport from the mesosphere appearing at 25 km in the wintertime polar latitudes; (3) the polar night build-up of high levels of N2O5 beginning after the autumnal equinox; and (4) the possibility of large downward fluxes of odd nitrogen into the troposphere during the winter at latitudes poleward of 60 degrees.

Callis, L. B.; Russell, J. M.; Boughner, R. E.; Natarajan, M.

1985-01-01

413

Sexual victimization of youth with a physical disability: an examination of prevalence rates, and risk and protective factors.  

PubMed

Children with disabilities have been shown to be at greater risk of victimization than those without. Although much of the research combines disability of any type into a single disability category, recent evidence suggests that not all types of disabilities are equally associated with victimization. To date, little knowledge exists about the victimization of youth with physical disabilities. This study used data from a national school-based survey of adolescents (n = 6,749, mean age = 15.41, SD = .66) in Switzerland to investigate sexual victimization (SV) among physically disabled youth. Two subtypes of SV were differentiated: contact SV, including penetration or touching/kissing, and non-contact SV, such as exhibitionism, verbal harassment, exposure to sexual acts, or cyber SV. A total of 360 (5.1%) youth self-identified as having a physical disability. Lifetime prevalence rates for contact SV were 25.95% for girls with a physical disability (odds ratio [OR] = 1.29 compared with able-bodied girls), 18.50% for boys with physical disability (OR = 2.78 compared with able-bodied boys), and 22.35% for the total sample with physical disability (OR = 1.74 compared with able-bodied youth). For non-contact SV, the lifetime prevalence was 48.11% for girls with a physical disability (OR = 1.44 compared with able-bodied girls), 31.76% for boys with physical disability (OR = 1.95 compared with able-bodied boys), and 40.28% for the total sample with physical disability (OR = 1.67 compared with able-bodied youth). After controlling for other risk factors, physical disability was a significant predictor of contact and non-contact SV for boys, but not for girls. PMID:24870960

Mueller-Johnson, Katrin; Eisner, Manuel P; Obsuth, Ingrid

2014-11-01

414

Physical Punishment  

MedlinePLUS

... privileges, and physical punishment. Physical punishment, sometimes called corporal punishment, is anything done to cause pain or discomfort ... likely to physically punish their own children. Physical punishment may influence ... in your child: bullying other children being aggressive ...

415

Early-life predictors of leisure-time physical inactivity in midadulthood: findings from a prospective british birth cohort.  

PubMed

Much adult physical inactivity research ignores early-life factors from which later influences may originate. In the 1958 British birth cohort (followed from 1958 to 2008), leisure-time inactivity, defined as activity frequency of less than once a week, was assessed at ages 33, 42, and 50 years (n = 12,776). Early-life factors (at ages 0-16 years) were categorized into 3 domains (i.e., physical, social, and behavioral). We assessed associations of adult inactivity 1) with factors within domains, 2) with the 3 domains combined, and 3) allowing for adult factors. At each age, approximately 32% of subjects were inactive. When domains were combined, factors associated with inactivity (e.g., at age 50 years) were prepubertal stature (5% lower odds per 1-standard deviation higher height), hand control/coordination problems (14% higher odds per 1-point increase on a 4-point scale), cognition (10% lower odds per 1-standard deviation greater ability), parental divorce (21% higher odds), institutional care (29% higher odds), parental social class at child's birth (9% higher odds per 1-point reduction on a 4-point scale), minimal parental education (13% higher odds), household amenities (2% higher odds per increase (representing poorer amenities) on a 19-point scale), inactivity (8% higher odds per 1-point reduction in activity on a 4-point scale), low sports aptitude (13% higher odds), and externalizing behaviors (i.e., conduct problems) (5% higher odds per 1-standard deviation higher score). Adjustment for adult covariates weakened associations slightly. Factors from early life were associated with adult leisure-time inactivity, allowing for early identification of groups vulnerable to inactivity. PMID:25282383

Pinto Pereira, Snehal M; Li, Leah; Power, Chris

2014-12-01

416

Influence of complete energy sorting on the characteristics of the odd-even effect in fission-fragment element distributions  

E-print Network

The characteristics of the odd-even effect in fission-fragment Z distributions are compared to a model based on statistical mechanics. Special care is taken for using a consistent description for the influence of pairing correlations on the nuclear level density. The variation of the odd-even effect with the mass of the fissioning nucleus and with fission asymmetry is explained by the important statistical weight of configurations where the light nascent fission fragment populates the lowest energy state of an even-even nucleus. This implies that entropy drives excitation energy and unpaired nucleons predominantly to the heavy fragment. Therefore, within our model, the odd-even effect appears as an additional signature of the recently discovered energy-sorting process in nuclear fission.

Jurado, Beatriz

2014-01-01

417

Constraints on a very light CP-odd Higgs of the NMSSM and other axion-like particles  

E-print Network

In the NMSSM, a light CP-odd Higgs arises due to spontaneous breaking of approximate symmetries such as Peccei-Quinn or R-symmetry and is motivated by string theory. The case when it is heavier than two muons is well studied and constrained. We analyze various meson decay, g-2, beam dump and reactor bounds on the CP-odd Higgs with mass below the muon threshold, in particular, addressing the question how light a CP-odd Higgs can be. We find that it has to be heavier than 210 MeV or have couplings to fermions 4 orders of magnitude below those of the Standard Model Higgs. Our analysis applies more generally to couplings of a light pseudoscalar to matter.

Sarah Andreas; Oleg Lebedev; Saul Ramos-Sanchez; Andreas Ringwald

2010-05-21

418

Influence of complete energy sorting on the characteristics of the odd-even effect in fission-fragment element distributions  

E-print Network

The characteristics of the odd-even effect in fission-fragment Z distributions are compared to a model based on statistical mechanics. Special care is taken for using a consistent description for the influence of pairing correlations on the nuclear level density. The variation of the odd-even effect with the mass of the fissioning nucleus and with fission asymmetry is explained by the important statistical weight of configurations where the light nascent fission fragment populates the lowest energy state of an even-even nucleus. This implies that entropy drives excitation energy and unpaired nucleons predominantly to the heavy fragment. Therefore, within our model, the odd-even effect appears as an additional signature of the recently discovered energy-sorting process in nuclear fission.

Beatriz Jurado; Karl-Heinz Schmidt

2014-11-17

419

Identifying the odds ratio estimated by a two-stage instrumental variable analysis with a logistic regression model*  

PubMed Central

Adjustment for an uncorrelated covariate in a logistic regression changes the true value of an odds ratio for a unit increase in a risk factor. Even when there is no variation due to covariates, the odds ratio for a unit increase in a risk factor also depends on the distribution of the risk factor. An instrumental variable can be used to consistently estimate a causal effect in the presence of arbitrary confounding. With a logistic outcome model, we show that the simple ratio or two-stage instrumental variable estimate is consistent for the odds ratio of an increase in the population distribution of the risk factor equal to the change due to a unit increase in the instrument divided by the average change in the risk factor due to the increase in the instrument. This odds ratio is conditional within strata of the instrumental variable, but marginal across all other covariates, and is averaged across the population distribution of the risk factor. Where the proportion of variance in the risk factor explained by the instrument is small, this is similar to the odds ratio from a randomized controlled trial without adjustment for any covariates, where the intervention corresponds to the effect of a change in the population distribution of the risk factor. This implies that the ratio or two-stage instrumental variable method is not biased, as has been suggested, but estimates a different quantity to the conditional odds ratio from an adjusted multiple regression; a quantity which has arguably more relevance to an epidemiologist or a policy-maker, especially in the context of Mendelian randomization. PMID:23733419

Burgess, Stephen

2014-01-01

420

Identifying the odds ratio estimated by a two-stage instrumental variable analysis with a logistic regression model.  

PubMed

An adjustment for an uncorrelated covariate in a logistic regression changes the true value of an odds ratio for a unit increase in a risk factor. Even when there is no variation due to covariates, the odds ratio for a unit increase in a risk factor also depends on the distribution of the risk factor. We can use an instrumental variable to consistently estimate a causal effect in the presence of arbitrary confounding. With a logistic outcome model, we show that the simple ratio or two-stage instrumental variable estimate is consistent for the odds ratio of an increase in the population distribution of the risk factor equal to the change due to a unit increase in the instrument divided by the average change in the risk factor due to the increase in the instrument. This odds ratio is conditional within the strata of the instrumental variable, but marginal across all other covariates, and is averaged across the population distribution of the risk factor. Where the proportion of variance in the risk factor explained by the instrument is small, this is similar to the odds ratio from a RCT without adjustment for any covariates, where the intervention corresponds to the effect of a change in the population distribution of the risk factor. This implies that the ratio or two-stage instrumental variable method is not biased, as has been suggested, but estimates a different quantity to the conditional odds ratio from an adjusted multiple regression, a quantity that has arguably more relevance to an epidemiologist or a policy maker, especially in the context of Mendelian randomization. PMID:23733419

Burgess, Stephen

2013-11-30

421

Identifying the irritability dimension of ODD: Application of a modified bifactor model across five large community samples of children.  

PubMed

The importance of irritability, as measured among the symptoms of oppositional defiant disorder (ODD), has dramatically come to the fore in recent years. New diagnostic categories rely on the distinct clinical utility of irritability, and models of psychopathology suggest it plays a key role in explaining developmental pathways within and between disorders into adulthood. However, only a few studies have tested multidimensional models of ODD, and the results have been conflicting. Further, consensus has not been reached regarding which symptoms best identify irritability. The present analyses use 5 large community data sets with 5 different measures of parent-reported ODD, comprising 16,280 youth in total, to help resolve these questions. Across the samples, ages ranged from 5 to 18, and included both boys and girls. Confirmatory factor analyses demonstrated that a modified bifactor model showed the best fit in each data set. The structure of the model included 2 correlated specific factors (irritability and oppositional behavior) in addition to a general ODD factor. In 4 models, the best fit was obtained using the items "being touchy," "angry," and "often losing temper" as indicators of irritability. Given the structure of the models and the generally high correlation between the specific dimensions, the results suggest that irritability may not be sufficiently distinct from oppositional behavior to support an entirely independent diagnosis. Rather, irritability may be better understood as a dimension of psychopathology that can be distinguished within ODD, and which may be related to particular forms of psychopathology apart from ODD. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:25314267

Burke, Jeffrey D; Boylan, Khrista; Rowe, Richard; Duku, Eric; Stepp, Stephanie D; Hipwell, Alison E; Waldman, Irwin D

2014-11-01

422

Localization of a marine source of odd chain-length fatty acids. I. The amphipod Pontoporeia femorata (Kröyer).  

PubMed

The amphipod Pontoporeia femorata (Kröyer) contains approximately equal amounts of odd chain length and even chain length fatty acids. Mature males of this species are released into the waters of Jeddore Harbour during winter months as the result of a regular reproductive cycle and become food for smelt Osmerus mordax moving into the harbor in preparation for spring spawning runs, thus accounting for the previously reported unusual fatty acid composition of these smelt. The exceptionally high levels of odd chain length fatty acids in P. femorata occur at all stages of maturity in both sexes of the animal and are found in P. femorata in other locations. PMID:1011943

Paradis, M; Ackman, R G

1976-12-01

423

Physics 232 Condensed Matter Physics  

E-print Network

1 Physics 232 Condensed Matter Physics Instructor: Peter Young Office: 212 ISB Telephone: 459://apyoung.com/232 TOPICS This course on condensed matter physics will cover three areas: · magnetism, · optical physics such as Condensed Matter Physics by M. Mardar Solid State Physics by N. Ashroft and N. D. Mermin

Young, A. Peter

424

@Why Physics Comprehensive Physics Major.  

E-print Network

@Why Physics Comprehensive Physics Major. From the basic laws of physics to the resulting emergent behavior, physics studies what the universe is made of and how it works. As a Physics major that surrounds us, to the structure and evolution of the entire universe. We offer three degrees in Physics

Yoo, S. J. Ben

425

Transtibial ACL Femoral Tunnel Preparation Increases Odds of Repeat Ipsilateral Knee Surgery  

PubMed Central

Background: Recent efforts to improve the results of anterior cruciate ligament (ACL) reconstruction have focused on placing the femoral tunnel anatomically. Medial portal femoral tunnel techniques facilitate drilling of femoral tunnels that are more anatomic than those made with transtibial techniques. Few studies have compared the clinical outcomes of these two femoral tunnel techniques. We hypothesized that the transtibial technique is associated with decreased Knee injury and Osteoarthritis Outcome Scores (KOOS) and an increased risk of repeat surgery in the ipsilateral knee when compared with the anteromedial portal technique. Methods: Four hundred and thirty-six patients who had undergone primary isolated autograft ACL reconstruction with a transtibial (229 patients) or anteromedial portal (207 patients) technique in 2002 or 2003 were identified in a prospective multicenter cohort. A multiple linear regression model was used to determine whether surgical technique (transtibial or anteromedial portal) was a significant predictor of KOOS at six years postoperatively, after controlling for preoperative KOOS, patient age, sex, activity level, body mass index (BMI), smoking status, graft type, and the presence of meniscal and chondral pathology at the time of reconstruction. A multiple logistic regression model was used to determine whether surgical technique was a significant predictor of repeat ipsilateral knee surgery, after controlling for patient age and activity level, graft type, and meniscal pathology at the time of reconstruction. Results: Postoperative KOOS were available for 387 patients (88.8%). Femoral tunnel drilling technique was not a predictor of the KOOS Quality of Life subscore (p = 0.72) or KOOS Function, Sports and Recreational Activities subscore (p = 0.36) at the six-year follow-up evaluation. Data regarding the prevalence of repeat surgery were available for 380 patients. Femoral tunnel technique was a significant predictor of subsequent ipsilateral knee surgery (odds ratio [OR] = 2.49, 95% confidence interval [CI] = 1.30 to 4.78, p = 0.006). Conclusions: Patients who underwent ACL reconstruction with a transtibial technique had significantly higher odds of undergoing repeat ipsilateral knee surgery relative to those who underwent reconstruction with an anteromedial portal technique. Level of Evidence: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID:24257662

Duffee, Andrew; Magnussen, Robert A.; Pedroza, Angela D.; Flanigan, David C.; Kaeding, Christopher C.

2013-01-01

426

Joint associations of multiple leisure-time sedentary behaviours and physical activity with obesity in Australian adults  

Microsoft Academic Search

BACKGROUND: Television viewing and physical inactivity are independently associated with risk of obesity. However, how the combination of multiple leisure-time sedentary behaviours (LTSB) and physical activity (LTPA) may contribute to the risk of obesity is not well understood. We examined the joint associations of multiple sedentary behaviours and physical activity with the odds of being overweight or obese. METHODS: A

Takemi Sugiyama; Genevieve N Healy; David W Dunstan; Jo Salmon; Neville Owen

2008-01-01

427

Radiative-lifetime measurements and calculations of odd-parity highly excited levels in Ba i  

SciTech Connect

Natural radiative lifetime measurements have been performed for 70 odd-parity highly excited levels of neutral barium in the energy range from 308 15.512 to 417 59.93 cm{sup -1} by a time-resolved laser-induced fluorescence technique in a laser-produced plasma. The lifetime values measured in this paper are in the range from 11.3 to 901 ns. They are compared with the published lifetimes of four levels. Two of them are in good agreement, whereas for the other two our measurements are slightly longer than the published data. The reasons for the discrepancies are discussed. Comparisons with theoretical results of the Hartree-Fock method with relativistic corrections illustrate the difficulties associated with the use of Cowan's codes for obtaining accurate branching fractions for transitions depopulating highly excited levels along the Rydberg series of heavy neutral elements. This work will be useful to extend the set of oscillator strengths available in Ba i.

Zhang Wei; Du Shan [College of Physics, Jilin University, Changchun 130021 (China); Key Lab of Coherent Light, Atomic and Molecular Spectroscopy, Ministry of Education, Changchun 130021 (China); Palmeri, Patrick [Astrophysique et Spectroscopie, Universite de Mons, B-7000 Mons (Belgium); Quinet, Pascal; Biemont, Emile [Astrophysique et Spectroscopie, Universite de Mons, B-7000 Mons (Belgium); IPNAS (Bat. B15), Universite de Liege, Sart Tilman, B-4000 Liege (Belgium); Dai Zhenwen [College of Physics, Jilin University, Changchun 130021 (China); Key Lab of Coherent Light, Atomic and Molecular Spectroscopy, Ministry of Education, Changchun 130021 (China); Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012 (China)

2010-10-15

428

Predicting preference-based utility values using partial proportional odds models  

PubMed Central

Background The majority of analyses on utility data have used ordinary least square (OLS) regressions to explore potential relationships. The aim of this paper is to explore the benefits of response mapping onto health dimension profiles to generate preference-based utility scores using partial proportional odds models (PPOM). Methods Models are estimated using EQ-5D data collected in the Health Survey for England and the predicted utility scores are compared with those obtained using OLS regressions. Explanatory variables include age, acute illness, educational level, general health, deprivation and survey year. The expected EQ-5D scores for the PPOMs are obtained by weighting the predicted probabilities of scoring one, two or three for the five health dimensions by the corresponding preference-weights. Results The EQ-5D scores obtained using the probabilities from the PPOMs characterise the actual distribution of EQ-5D preference-based utility scores more accurately than those obtained from the linear model. The mean absolute and mean squared errors in the individual predicted values are also reduced for the PPOM models. Conclusions The PPOM models characterise the underlying distributions of the EQ-5D data better than models obtained using OLS regressions. Additional research exploring the effect of modelling conditional responses and two part models could potentially improve the results further. PMID:25000846

2014-01-01

429

Multi-instantons and exact results III: Unification of even and odd anharmonic oscillators  

SciTech Connect

This is the third article in a series of three papers on the resonance energy levels of anharmonic oscillators. Whereas the first two papers mainly dealt with double-well potentials and modifications thereof [see J. Zinn-Justin, U.D. Jentschura, Ann. Phys. (N.Y.) 313 (2004) 197 and 269], we here focus on simple even and odd anharmonic oscillators for arbitrary magnitude and complex phase of the coupling parameter. A unification is achieved by the use of PT-symmetry inspired dispersion relations and generalized quantization conditions that include instanton configurations. Higher-order formulas are provided for the oscillators of degrees 3 to 8, which lead to subleading corrections to the leading factorial growth of the perturbative coefficients describing the resonance energies. Numerical results are provided, and higher-order terms are found to be numerically significant. The resonances are described by generalized expansions involving intertwined nonanalytic exponentials, logarithmic terms and power series. Finally, we summarize spectral properties and dispersion relations of anharmonic oscillators, and their interconnections. The purpose is to look at one of the classic problems of quantum theory from a new perspective, through which we gain systematic access to the phenomenologically significant higher-order terms.

Jentschura, Ulrich D. [Department of Physics, Missouri University of Science and Technology, Rolla, Missouri, MO 65409 (United States)], E-mail: ulj@mst.edu; Surzhykov, Andrey [Physikalisches Institut der Universitaet, Philosophenweg 12, 69120 Heidelberg (Germany); GSI Helmholtzzentrum fuer Schwerionenforschung, 64291 Darmstadt (Germany); Zinn-Justin, Jean [CEA, IRFU and Institut de Physique Theorique, Centre de Saclay, F-91191 Gif-Sur-Yvette (France)

2010-05-15

430

Odd complaints and doubtful conditions: norms of hypochondria in Jane Austen and Catherine Belling.  

PubMed

In her final fragmentary novel Sanditon, Jane Austen develops a theme that pervades her work from her juvenilia onward: illness, and in particular, illness imagined, invented, or self-inflicted. While the "invention of odd complaints" is characteristically a token of folly or weakness throughout her writing, in this last work imagined illness is also both a symbol and a cause of how selves and societies degenerate. In the shifting world of Sanditon, hypochondria is the lubricant for a society bent on turning health into a commodity. As a result, people's rationality and their moral character come under attack. Catherine Belling's recent subtle study, A Condition of Doubt: The Meanings of Hypochondria, unveils hypochondria's discursive and cultural character. Running sharply against the tenor of Austen's treatment, however, she argues in defense of the rationality of hypochondriacs; the notion that the condition may involve morally significant defects is not entertained; any connection to the commercialization of health care is muted. Here, I contrast Austen's morally and epistemically negative rendering of her hypochondriacal characters in Sanditon with Belling's efforts to create a sympathetic understanding of people with hypochondria. I will argue that, despite time gaps and genre differences, joint consideration of these texts can help bioethicists better appreciate how medicine can intensify, pathologize, and exploit anxieties about illness and death, thus adding to the challenges of living well in the face of mortality and morbidity. PMID:24796425

Nelson, James Lindemann

2014-06-01

431

Single- and multi-phonon excitations of $\\gamma$ vibration in rotating odd-$A$ nuclei  

E-print Network

Collective motions in quantum many-body systems are described as bosonic excitations. Multi-phonon excitations in atomic nuclei, however, were observed very rarely. In particular, the first two-phonon \\gamma vibration (2\\gamma) in odd-A nuclei was reported in 2006 and only a few have been known. Two theoretical calculations for the data on Nb103 were done, one of which was done by the present author within a limited model space. Quite recently, conspicuously enhanced B(E2) feeding the 2\\gamma were observed in Nb105 and conjectured that their mother states are candidates of 3\\gamma. In the present work, the model space is enlarged up to 4\\gamma states. The purposes are two-folds: One is to see how the description in the previous work is improved, and the other is to look into the existence of 3\\gamma states, and when they exist, study their collectivity through calculating interband B(E2). The particle-vibration coupling model based on the cranking model and the random-phase approximation is used to calculate ...

Matsuzaki, Masayuki

2014-01-01

432

Electron capture strength on odd-A nucleus $\\mathbf{^{59}}$Co in explosive astrophysical environment  

E-print Network

The Gamow-Teller (GT) transitions within massive stars play sumptuous role in the dynamics of core collapse supernovae. GT strength distributions and electron capture rates have been calculated for odd-A nucleus $^{59}$Co within the proton-neutron quasiparticles random phase approximation (pn-QRPA) formalism. The pn-QRPA results are compared with other model calculations and (n, p) reaction experiment carried out at TRIUMF charge-exchange facility. The pn-QRPA calculated a total $B(GT_{+})$ strength of 3.3 for $^{59}$Co to be compared with the shell model value of 2.5 and the 1.9 $\\pm$ 0.1 in the (n, p) charge-exchange reaction. Aufderheide et. al. \\cite{Aufderheide93} extracted total strength equaling 2.4 $\\pm$ 0.3. The placement of GT centroid at 5.6 MeV by the pn-QRPA model is in reasonable agreement with the shell model centroid at 5.1 MeV whereas the measured GT centroid was placed at 4.4 $\\pm$ 0.3 MeV in the (n, p) experiment. Fuller, Fowler and Newman (FFN) \\cite{FFN80, FFN82, FFN82b}, placed the GT ce...

Rahman, Muneeb-Ur

2014-01-01

433

Searching for P- and CP- odd effects in heavy ion collisions  

E-print Network

In this thesis we study the possibility that QCD breaks parity at high temperatures and densities, a scenario that may be tested in heavy ion collisions. Analytical studies with effective models suggest that QCD may break parity in dense systems. Besides, P- and CP- odd bubbles may appear in a finite volume due to local large topological fluctuations in a hot medium. The last effect may be treated in a quasi-equilibrium description by means of a non-trivial axial chemical potential. We consider the 'two flavour' Nambu--Jona-Lasinio model in the presence of a vector and an axial external chemical potentials and study the phase structure of the model at zero temperature. These magnitudes could trigger a phase where parity could be broken in QCD. Analogies and differences with the expected behaviour in QCD are discussed besides the limitations of the model. We also consider the low energy realization of QCD in terms of mesons when an axial chemical potential is present. The eigenstates of strong interactions do ...

Planells, Xumeu

2014-01-01

434

Physical Changes  

NSDL National Science Digital Library

After completing this tutorial you should be able to identify a physical change as well as describe what happens to a substance that undergoes a phase change. Physical changes cause a change in the physical properties of a substance without changing what the substance actually is. Physical Change Definition What are some common physical properties? Physical Properties You\\'ve already learned about chemical properties and changes. Now test your knowledge of physical and chemical properties. Physical Properties Quiz An important physical change is a phase change. Go to ...

Jolley, Mr.

2005-10-29

435

Physical Science  

NSDL National Science Digital Library

Physical science is the science of matter and energy and their interactions and examines the physical world around us. Using the methods of the physical sciences, students learn about the composition, structure, properties, and reactions of matter and the relationships between matter and energy. Students are best able to build understanding of the physical sciences through hands-on exploration of the physical world.

K-12 Outreach,

436

Beyond the Gym: Increasing Outside of School Physical Activity through Physical Education  

ERIC Educational Resources Information Center

The purpose of physical education is to guide youngsters to become and remain physically active for life. Research on correlates and determinants of physical activity has shown the importance of developing intrinsic motivation in students so that they will choose to be physically active in their leisure time. When the physical education curriculum…

Palmer, Stephen; Bycura, Dierdra

2014-01-01

437

Evaluation of the odd–even effect in limits of detection for electron microprobe analysis of natural minerals  

Microsoft Academic Search

Limit of detection (LOD), being a fundamental quality parameter for analytical techniques, has been recently investigated and a systematic behavior has been observed for most odd–even element pairs for many techniques. However, to the best of our knowledge very few LOD data are available in published literature for electron microprobe analysis; these consist of three papers, two being on rare-earth

Surendra P. Verma; Kailasa Pandarinath; Fernando Velasco-Tapia; Rodolfo Rodríguez-Ríos

2009-01-01

438

A three-dimensional total odd nitrogen (NOy) simulation during SONEX using a stretched-grid chemical transport model  

E-print Network

Assimilation System (GEOS-STRAT DAS). A new algorithm is used to estimate the lightning flash rates needed including lightning, aircraft, and surface emissions on upper tropospheric total odd nitrogen is illustrated was chosen so that its maximum resolution is located over eastern North America and the North Atlantic

Stenchikov, Georgiy L.

439

odd-skipped genes and lines organize the notum anterior-posterior axis using autonomous and non-autonomous mechanisms  

PubMed Central

The growth and patterning of Drosophila wing and notum primordia depend on their subdivision into progressively smaller domains by secreted signals that emanate from localized sources termed organizers. While the mechanisms that organize the wing primordium have been studied extensively, those that organize the notum are incompletely understood. The genes odd-skipped (odd), drumstick (drm), sob, and bowl comprise the odd-skipped family of C2H2 zinc finger genes, which has been implicated in notum growth and patterning. Here we show that drm, Bowl, and eyegone (eyg), a gene required for notum patterning, accumulate in nested domains in the anterior notum. Ectopic drm organized the nested expression of these anterior notum genes and downregulated the expression of posterior notum genes. The cell autonomous induction of Bowl and Eyg required bowl, while the non-autonomous effects were independent of bowl. The homeodomain protein Bar is expressed along the anterior border of the notum adjacent to cells expressing the Notch (N) ligand Delta (Dl). bowl was required to promote Bar and repress Dl expression to pattern the anterior notum in a cell-autonomous manner, while lines acted antagonistically to bowl posterior to the Bowl domain. Our data suggest that the odd-skipped genes act at the anterior notum border to organize the notum anterior-posterior (AP) axis using both autonomous and non-autonomous mechanisms. PMID:22613630

Del Signore, Steven J; Hayashi, Teru; Hatini, Victor

2012-01-01

440

Trends in the human sex odds at birth in Europe and the Chernobyl Nuclear Power Plant accident  

Microsoft Academic Search

To investigate trends in the sex odds before and after the Chernobyl accident, gender-specific annual birth statistics were obtained from the Czech Republic, Denmark, Finland, Germany, Hungary, Norway, Poland, and Sweden between 1982 and 1992. For parts of Germany, annual birth statistics and fallout measurements after Chernobyl are available at the district level. Trend models allowing for discontinuities of the

Hagen Scherb; Kristina Voigt

2007-01-01

441

Sex Steroids and Sex Chromosomes at Odds? Alfred Jost's proposal in the 1940s (1) that testes are crucial  

E-print Network

Sex Steroids and Sex Chromosomes at Odds? Alfred Jost's proposal in the 1940s (1) that testes of sexual differentiation into `Sex chromosomal genes determine the differentiation of the go- nads doctrine may not be as generally applicable as first thought. Several sex differences, for example in bird

de Vries, Geert J.

442

Co-Occurring ODD and GAD Symptom Groups: Source-Specific Syndromes and Cross-Informant Comorbidity  

ERIC Educational Resources Information Center

Despite important clinical and nosological implications, the comorbidity of oppositional defiant disorder (ODD) and generalized anxiety disorder (GAD) has received little attention. A clinic-based sample of 243 boys (ages 6-10 years), their parents, and teachers participated in an evaluation that involved assessments of behavioral, academic, and…

Drabick, Deborah A. G.; Gadow, Kenneth D.; Loney, Jan

2008-01-01

443

Repeated measures proportional odds logistic regression analysis of ordinal score data in the statistical software package R  

Microsoft Academic Search

The widely used proportional odds model is developed for correlated repeated ordinal score data, using a modified version of the generalized estimating equation (GEE) method for model fitting for a range of working correlation models. The algorithm developed estimates the correlation parameter, by minimizing the generalized variance of the regression parameters at each step of the fitting algorithm. Methods for

Nick R. Parsons; Matthew L. Costa; Juul Achten; Nigel Stallard

2009-01-01

444

Drinking and Driving Back in your senior year of high school, odds are you can remember your  

E-print Network

, drink, and enjoy your time spent with family and friends. But if you are of legal age to drink beverages the legal limit? Ages 21-24. (2) (1) The potential penalties are severe: blowing a 0.08 BAC on a firstDrinking and Driving Back in your senior year of high school, odds are you can remember your

Bieber, Michael

445

ADHD Preschoolers with and without ODD: Do They Act Differently Depending on Degree of Task Engagement/Reward?  

ERIC Educational Resources Information Center

Objective: To examine the impact of reinforcement on reaction time (RT) and RT variability (RT standard deviation [RTSD]) in preschoolers with ADHD with and without oppositional defiant disorder (ODD), and a typically developing (TD) comparison group. Method: Participants were administered a computerized task consisting of two conditions: simple…

Gopin, Chaya B.; Berwid, Olga; Marks, David J.; Mlodnicka, Agnieska; Halperin, Jeffrey M.

2013-01-01

446

Should There Be Separate Parent and Teacher-Based Categories of ODD? Evidence from a General Population  

ERIC Educational Resources Information Center

Objective: To examine the occurrence of oppositional defiant disorder (ODD) symptoms in a general population of boys and girls, as reported by parents and teachers, and to investigate differences in prevalence estimates, depending on how parents' and teachers' ratings were combined. Method: Data were collected from 7007 children (aged 7-9) who…

Munkvold, Linda; Lundervold, Astri; Lie, Stein Atle; Manger, Terje

2009-01-01

447

(d,3He) reaction on an odd-neutron nuclear target for the formation of deeply bound pionic atoms  

NASA Astrophysics Data System (ADS)

We consider pionic atom spectroscopy by the (d,^3He) reaction on an odd-neutron nuclear target in this article, which has not yet been investigated. In the (d,^3He) reaction on the odd-neutron nuclear target, we can observe pionic states in the even-neutron nucleus with spin-parity 0^+. We expect that these pionic states do not have additional shifts due to the effects of the residual interaction between neutron-hole and pionic states. For the even-neutron nuclear target cases, we may have to take into account the residual interaction effects to deduce the binding energies of the pionic states precisely from the high-precision experimental data, since the final pionic states are pion-particle plus neutron-hole [? ? n-1] states. Thus, in addition to widening the domain of pionic atom spectroscopy on the nuclear chart, the present study of the (d,^3He) reaction on an odd-neutron target is considered to be important to deduce extremely precise information on the binding energies of the observed pionic states, and to clarify the pion properties and aspects of the symmetries of the strong interaction at finite density. We modify the formula of the even-even nuclear target case to study pionic atom formation spectra on the even-odd nuclear target and show the numerical results of the ^{117}Sn target case. This experiment will be performed at RIBF/RIKEN in the near future.

Ikeno, Natsumi; Yamagata-Sekihara, Junko; Nagahiro, Hideko; Hirenzaki, Satoru

2013-06-01

448

The Mismatch Effect: When Testosterone and Status Are at Odds Robert A. Josephs and Jennifer Guinn Sellers  

E-print Network

The Mismatch Effect: When Testosterone and Status Are at Odds Robert A. Josephs and Jennifer Guinn between baseline testosterone and a person's current level of status. The authors tested this mismatch effect by placing high and low testosterone individuals into high or low status positions using a rigged

Josephs, Robert

449

Cognitive Functioning and Family Risk Factors in Relation to Symptom Behaviors of ADHD and ODD in Adolescents  

ERIC Educational Resources Information Center

Objective: In this study, the authors investigated whether ADHD and oppositional defiant disorder (ODD) behaviors share associations with problems in cognitive functioning and/or family risk factors in adolescence. This was done by examining independent as well as specific associations of cognitive functioning and family risk factors with ADHD and…

Forssman, Linda; Eninger, Lilianne; Tillman, Carin M.; Rodriguez, Alina; Bohlin, Gunilla

2012-01-01

450

Collective states of the odd-mass nuclei within the framework of the Interacting Vector Boson Model  

E-print Network

A supersymmetric extension of the dynamical symmetry group $Sp^{B}(12,R)$ of the Interacting Vector Boson Model (IVBM), to the orthosymplectic group $OSp(2\\Omega/12,R)$ is developed in order to incorporate fermion degrees of freedom into the nuclear dynamics and to encompass the treatment of odd mass nuclei. The bosonic sector of the supergroup is used to describe the complex collective spectra of the neighboring even-even nuclei and is considered as a core structure of the odd nucleus. The fermionic sector is represented by the fermion spin group $SO^{F}(2\\Omega)\\supset SU^{F}(2)$. The so obtained, new exactly solvable limiting case is applied for the description of the nuclear collective spectra of odd mass nuclei. The theoretical predictions for different collective bands in three odd mass nuclei, namely $^{157}Gd$, $^{173}Yb$ and $^{163}Dy$ from rare earth region are compared with the experiment. The $B(E2)$ transition probabilities for the $^{157}Gd$ and $^{163}Dy$ between the states of the ground band are also studied. The important role of the symplectic structure of the model for the proper reproduction of the $B(E2)$ behavior is revealed. The obtained results reveal the applicability of the models extension.

H. G. Ganev

2007-05-15

451

The Effect of Raffle Odds on Signing In at a Treatment Center for Adults with Mental Illness  

ERIC Educational Resources Information Center

This case study describes the use of a daily raffle to increase attendance in a socialization center for approximately 75 adults diagnosed with mental illness. Specifically, the relationship between signing in, which was a measure of attendance, and the odds of winning points which could be exchanged for tangible and edible items was examined. An…

Gravina, Nicole; Wilder, David A.; White, Holly; Fabian, Todd

2005-01-01

452

Analysis on problem of removing the odd point in rotors torsional vibration characteristics' calculation using Riccati method  

Microsoft Academic Search

Aiming at the problem of the odd point in the calculation of rotors torsional vibration characteristics by using the improved Riccati method, this paper presents a new viewpoint about how to confirm and remove the lost root and the accessional root.

Dan-Mei Xie; Juan Huang; Jian-Feng Wan; Ye Yuan

2003-01-01

453

Beating the Odds: The College, Career, and Civic Life (C3) Framework for Social Studies State Standards  

ERIC Educational Resources Information Center

When the College, Career, and Civic Life (C3) Framework for Social Studies State Standards project began, there really was nowhere else to go but up. The project was up against great odds--a dearth of funding, a history of incivility amongst the disciplines within social studies, a knack for ending up in media battles over what should be taught in…

Swan, Kathy; Griffin, Susan

2013-01-01

454

Odd-Skipped Labels a Group of Distinct Neurons Associated With the Mushroom Body and Optic Lobe in the Adult Drosophila Brain  

PubMed Central

Olfactory processing has been intensively studied in Drosophila melanogaster. However, we still know little about the descending neural pathways from the higher order processing centers and how these connect with other neural circuits. Here we describe, in detail, the adult projections patterns that arise from a cluster of 78 neurons, defined by the expression of the Odd-skipped transcription factor. We term these neurons Odd neurons. By using expression of genetically encoded axonal and dendritic markers, we show that a subset of the Odd neurons projects dendrites into the calyx of the mushroom body (MB) and axons into the inferior protocerebrum. We exclude the possibility that the Odd neurons are part of the well-known Kenyon cells whose projections form the MB and conclude that the Odd neurons belong to a previously not described class of extrinsic MB neurons. In addition, three of the Odd neurons project into the lobula plate of the optic lobe, and two of these cells extend axons ipsi- and contralaterally in the brain. Anatomically, these cells do not resemble any previously described lobula plate tangential cells (LPTCs) in Drosophila. We show that the Odd neurons are predominantly cholinergic but also include a small number of ?-aminobutyric acid (GABA)ergic neurons. Finally, we provide evidence that the Odd neurons are a hemilineage, suggesting they are born from a defined set of neuroblasts. Our anatomical analysis hints at the possibility that subgroups of Odd neurons could be involved in olfactory and visual processing. PMID:23749685

Levy, Peter; Larsen, Camilla

2014-01-01

455

Factors associated with leisure time physical inactivity in black individuals: hierarchical model  

PubMed Central

Background. A number of studies have shown that the black population exhibits higher levels of leisure-time physical inactivity (LTPI), but few have investigated the factors associated with this behavior. Objective. The aim of this study was to analyze associated factors and the explanatory model proposed for LTPI in black adults. Methods. The design was cross-sectional with a sample of 2,305 adults from 20–96 years of age, 902 (39.1%) men, living in the city of Salvador, Brazil. LTPI was analyzed using the International Physical Activity Questionnaire (IPAQ). A hierarchical model was built with the possible factors associated with LTPI, distributed in distal (age and sex), intermediate 1 (socioeconomic status, educational level and marital status), intermediate 2 (perception of safety/violence in the neighborhood, racial discrimination in private settings and physical activity at work) and proximal blocks (smoking and participation in Carnival block rehearsals). We estimated crude and adjusted odds ratio (OR) using logistic regression. Results. The variables inversely associated with LTPI were male gender, socioeconomic status and secondary/university education, although the proposed model explains only 4.2% of LTPI. Conclusions. We conclude that male gender, higher education and socioeconomic status can reduce LTPI in black adults. PMID:25289177

Lessa, Ines; Barbosa, Paulo Jose B.; Barbosa, Simone Janete O.; Costa, Maria Cecilia; Lopes, Adair da Silva

2014-01-01

456

Factors associated with leisure time physical inactivity in black individuals: hierarchical model.  

PubMed

Background. A number of studies have shown that the black population exhibits higher levels of leisure-time physical inactivity (LTPI), but few have investigated the factors associated with this behavior. Objective. The aim of this study was to analyze associated factors and the explanatory model proposed for LTPI in black adults. Methods. The design was cross-sectional with a sample of 2,305 adults from 20-96 years of age, 902 (39.1%) men, living in the city of Salvador, Brazil. LTPI was analyzed using the International Physical Activity Questionnaire (IPAQ). A hierarchical model was built with the possible factors associated with LTPI, distributed in distal (age and sex), intermediate 1 (socioeconomic status, educational level and marital status), intermediate 2 (perception of safety/violence in the neighborhood, racial discrimination in private settings and physical activity at work) and proximal blocks (smoking and participation in Carnival block rehearsals). We estimated crude and adjusted odds ratio (OR) using logistic regression. Results. The variables inversely associated with LTPI were male gender, socioeconomic status and secondary/university education, although the proposed model explains only 4.2% of LTPI. Conclusions. We conclude that male gender, higher education and socioeconomic status can reduce LTPI in black adults. PMID:25289177

Pitanga, Francisco José Gondim; Lessa, Ines; Barbosa, Paulo José B; Barbosa, Simone Janete O; Costa, Maria Cecília; Lopes, Adair da Silva

2014-01-01

457

Combined Influence of Physical Activity and Screen Time Recommendations on Childhood Overweight  

Microsoft Academic Search

Objectives To examine the combined influence of physical activity and screen time (television and video games) on the odds of being overweight and to evaluate the utility of current public policy recommendations. Study design Physical activity was assessed by a pedometer and screen time was assessed by survey in a sample of 709 children age 7 to 12 years. The

KELLY R. LAURSON; JOEY C. EISENMANN; GREGORY J. WELK; ERIC E. WICKEL; DOUGLAS A. GENTILE; DAVID A. WALSH

458

DEPARTMENT OF PHYSICS Physics 42200  

E-print Network

DEPARTMENT OF PHYSICS Syllabus Physics 42200 Biophysics Designation: Undergraduate Catalog and membranes. In depth study of the physical basis of selected systems including vision, nerve transmission. Prerequisites: Prereq.: 1 yr. of Math, 1 yr. of Physics (elective for Physics Majors and Biomedical Engineering

Lombardi, John R.

459

DEPARTMENT OF PHYSICS Physics 32300  

E-print Network

DEPARTMENT OF PHYSICS Syllabus Physics 32300 Quantum Mechanics for Engineers Designation: required for Physics majors in the Applied Physics Option Undergraduate Catalog description: Basic experiments, wave: Physics 20700 and 20800, Math 39100 and Math 39200 Textbook and other suggested material: Scherrer

Lombardi, John R.

460

Physical Constructivism and Quantum Probability  

NASA Astrophysics Data System (ADS)

I describe the main ideas of constructive physics and its role for the probability interpretation of quantum theory. It is shown how the explicit probability space for quantum systems gives the formal representation of entanglement and decoherence.

Ozhigov, Yu. I.

2009-03-01

461

Particle Physics and Cosmology  

Microsoft Academic Search

An interplay between elementary particle physics and cosmology is discussed with a special emphasis on the theory of scalar meson fields and the inflationary universe scenario. It is shown that the chaotic inflation scenario, unlike the new inflationary universe scenario, can be realized in a wide class of realistic theories of elementary particles under some natural assumptions concerning initial conditions

Andrei Linde

1985-01-01

462

Electron capture strength on odd- A nucleus 59Co in explosive astrophysical environment  

NASA Astrophysics Data System (ADS)

The Gamow-Teller (GT) transitions within massive stars play sumptuous role in the dynamics of core collapse supernovae. GT strength distributions and electron capture rates have been calculated for odd- A nucleus 59Co within the proton-neutron quasiparticles random phase approximation (pn-QRPA) formalism. The pn-QRPA results are compared with other model calculations and ( n, p) reaction experiment carried out at TRIUMF charge-exchange facility. The pn-QRPA calculated a total B( GT +) strength of 3.3 for 59Co to be compared with the shell model value of 2.5 and the 1.9±0.1 in the ( n, p) charge-exchange reaction. Aufderheide et al. (1993) extracted total strength equaling 2.4±0.3. The placement of GT centroid at 5.6 MeV by the pn-QRPA model is in reasonable agreement with the shell model centroid at 5.1 MeV whereas the measured GT centroid was placed at 4.4±0.3 MeV in the ( n, p) experiment. Fuller, Fowler and Newman (FFN) (1980, 1982a, 1982b), placed the GT centroid at too low excitation energy of 2.0 MeV in the daughter nucleus 59Fe, and this misplacement led to the enhancement of FFN rates. The suppressed pn-QRPA and shell model electron capture rates are in good agreement with each other. The rates are suggestive of higher value of Y e (electron-to-baryon ratio) and may contribute to a more massive homologously collapsing core resulting in a more energetic shock. It might be interesting for the simulators to check the effect of these suppressed rates on the fine-tuning of the time rate of Y e , the concomitant heavy element nucleosynthesis, and, on the energetics of the subsequent shock wave.

Rahman, Muneeb-Ur; Nabi, Jameel-Un

2014-05-01

463

Maternal complement C1q and increased odds for psychosis in adult offspring.  

PubMed

The presence of maternal antibodies to food and infectious antigens may confer an increased risk of developing schizophrenia and psychosis in adult offspring. Complement factor C1q is an immune molecule with multiple functions including clearance of antigen-antibody complexes from circulation and mediation of synaptic pruning during fetal brain development. To determine if maternal C1q was associated with offspring schizophrenia and psychosis, we evaluated 55 matched case-control maternal serum pairs from the National Collaborative Perinatal Project. Sample pairs were composed of mothers whose offspring developed psychoses as adults and those whose offspring were free from psychiatric disease. Matching criteria for offspring included birth date, delivery hospital, race, and gender, with further matching based on mother's age. IgG markers of C1q, bovine milk casein, egg ovalbumin, and wheat gluten were measured with enzyme-linked immunosorbent assays. C1q levels were compared to food antigen IgG and to previously generated data for C-reactive protein, adenovirus, herpes simplex viruses, influenza viruses, measles virus, and Toxoplasma gondii. C1q was significantly elevated in case mothers with odds ratios of 2.66-6.31 (conditional logistic regressions, p ? 0.008-0.05). In case mothers only, C1q was significantly correlated with antibodies to both food and infectious antigens: gluten (R(2)=0.26, p ? 0.004), herpes simplex virus type 2 (R(2)=0.21, p ? 0.02), and adenovirus (R(2)=0.25, p ? 0.006). In conclusion, exposure to maternal C1q activity during pregnancy may be a risk factor for the development of schizophrenia and psychosis in offspring. Prenatal measurement of maternal C1q may be an important and convergent screening tool to identify potentially deleterious immune activation from multiple sources. PMID:25195065

Severance, Emily G; Gressitt, Kristin L; Buka, Stephen L; Cannon, Tyrone D; Yolken, Robert H

2014-10-01

464

Against All Odds: Genocidal Trauma Is Associated with Longer Life-Expectancy of the Survivors  

PubMed Central

Does surviving genocidal experiences, like the Holocaust, lead to shorter life-expectancy? Such an effect is conceivable given that most survivors not only suffered psychosocial trauma but also malnutrition, restriction in hygienic and sanitary facilities, and lack of preventive medical and health services, with potentially damaging effects for later health and life-expectancy. We explored whether genocidal survivors have a higher risk to die younger than comparisons without such background. This is the first population-based retrospective cohort study of the Holocaust, based on the entire population of immigrants from Poland to Israel (N?=?55,220), 4–20 years old when the World War II started (1939), immigrating to Israel either between 1945 and 1950 (Holocaust group) or before 1939 (comparison group; not exposed to the Holocaust). Hazard of death – a long-term outcome of surviving genocidal trauma – was derived from the population-wide official data base of the National Insurance Institute of Israel. Cox regression yielded a significant hazard ratio (HR?=?0.935, CI (95%)?=?0.910–0.960), suggesting that the risk of death was reduced by 6.5 months for Holocaust survivors compared to non-Holocaust comparisons. The lower hazard was most substantial in males who were aged 10–15 (HR?=?0.900, CI (95%)?=?0.842–0.962, i.e., reduced by 10 months) or 16–20 years at the onset of the Holocaust (HR?=?0.820, CI (95%)?=?0.782–0.859, i.e., reduced by18 months). We found that against all odds genocidal survivors were likely to live longer. We suggest two explanations: Differential mortality during the Holocaust and “Posttraumatic Growth” associated with protective factors in Holocaust survivors or in their environment after World War II. PMID:23894427

Sagi-Schwartz, Abraham; Bakermans-Kranenburg, Marian J.; Linn, Shai; van IJzendoorn, Marinus H.

2013-01-01

465

A Note on formulae for causal mediation analysis in an odds ratiocontext  

PubMed Central

In a recent manuscript, VanderWeele and Vansteelandt (American Journal of Epidemiology, 2010,172:1339–1348) (hereafter VWV) build on results due to Judea Pearl on causal mediation analysis and derive simple closed-form expressions for so-called natural direct and indirect effects in an odds ratio context for a binary outcome and a continuous mediator. The expressions obtained by VWV make two key simplifying assumptions: The mediator is normally distributed with constant variance,The binary outcome is rare. Assumption A may not be appropriate in settings where, as can happen in routine epidemiologic applications, the distribution of the mediator variable is highly skew. However, in this note, the author establishes that under a key assumption of “no mediator-exposure interaction” in the logistic regression model for the outcome, the simple formulae of VWV continue to hold even when the normality assumption of the mediator is dropped. The author further shows that when the “no interaction” assumption is relaxed, the formula of VWV for the natural indirect effect in this setting continues to apply when assumption A is also dropped. However, an alternative formula to that of VWV for the natural direct effect is required in this context and is provided in an appendix. When the disease is not rare, the author replaces assumptions A and B with an assumption C that the mediator follows a so-called Bridge distribution in which case simple closed-form formulae are again obtained for the natural direct and indirect effects. PMID:25309848

Tchetgen Tchetgen, Eric J.

2014-01-01

466

Electron capture strength on odd-A nucleus $\\mathbf{^{59}}$Co in explosive astrophysical environment  

E-print Network

The Gamow-Teller (GT) transitions within massive stars play sumptuous role in the dynamics of core collapse supernovae. GT strength distributions and electron capture rates have been calculated for odd-A nucleus $^{59}$Co within the proton-neutron quasiparticles random phase approximation (pn-QRPA) formalism. The pn-QRPA results are compared with other model calculations and (n, p) reaction experiment carried out at TRIUMF charge-exchange facility. The pn-QRPA calculated a total $B(GT_{+})$ strength of 3.3 for $^{59}$Co to be compared with the shell model value of 2.5 and the 1.9 $\\pm$ 0.1 in the (n, p) charge-exchange reaction. Aufderheide et. al. \\cite{Aufderheide93} extracted total strength equaling 2.4 $\\pm$ 0.3. The placement of GT centroid at 5.6 MeV by the pn-QRPA model is in reasonable agreement with the shell model centroid at 5.1 MeV whereas the measured GT centroid was placed at 4.4 $\\pm$ 0.3 MeV in the (n, p) experiment. Fuller, Fowler and Newman (FFN) \\cite{FFN80, FFN82, FFN82b}, placed the GT centroid at too low excitation energy of 2.0 MeV in the daughter nucleus $^{59}$Fe, and this misplacement led to the enhancement of FFN rates. The suppressed pn-QRPA and shell model electron capture rates are in good agreement with each other. The rates are suggestive of higher value of $Y_{e}$ (electron-to-baryon ratio) and may contribute to a more massive homologously collapsing core resulting in a more energetic shock. It might be interesting for the simulators to check the effect of these suppressed rates on the fine-tuning of the time rate of $Y_{e}$, the concomitant heavy element nucleosynthesis, and, on the energetics of the subsequent shock wave.

Muneeb-Ur Rahman; Jameel-Un Nabi

2014-08-21

467

U{sup BF}(5) to SU{sup BF}(3) shape phase transition in odd nuclei for j=1/2, 3/2, and 5/2 orbits: The role of the odd particle at the critical point  

SciTech Connect

We investigate the phase transition in odd nuclei within the Interacting Boson Fermion Model in correspondence with the transition from spherical to stable axially deformed shape. The odd particle is assumed to be moving in the single-particle orbitals with angular momenta j=1/2,3/2,5/2 with a boson-fermion Hamiltonian that leads to the occurrence of the SU{sup BF}(3) boson-fermion symmetry when the boson part approaches the SU(3) condition. Both energy spectra and electromagnetic transitions show characteristic patterns similar to those displayed by the even nuclei at the corresponding critical point. The role of the additional particle in characterizing the properties of the critical points in finite quantal systems is investigated by resorting to the formalism based on the intrinsic frame.

Alonso, C. E.; Arias, J. M. [Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Fisica Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain); Fortunato, L.; Vitturi, A. [Dipartimento di Fisica Galileo Galilei and INFN, Via Marzolo 8, I-35131 Padova (Italy)

2009-01-15

468

Self-Consciousness, Evaluation of Physical Characteristics, and Physical Attractiveness.  

ERIC Educational Resources Information Center

Investigated the relationship between public self-consciousness and speed of processing information about self. Results indicated that high public self-conciousness subjects required less time to report evaluations of their physical features. In a second study high public self-conciousness was shown to be positively related to judged physical…

Turner, Robert G.; Gilliland, LuNell

1981-01-01

469

Which Better Predicts Conduct Problems? The Relationship of Trajectories of Conduct Problems with ODD and ADHD Symptoms from Childhood into Adolescence  

ERIC Educational Resources Information Center

Background: To assess the co-occurrence in deviant trajectories of parent-rated symptoms of conduct disorder (CD), oppositional defiant disorder (ODD) and attention-deficit/hyperactivity disorder (ADHD) from age 4 to 18 years old in a general population sample of Dutch children. Methods: Developmental trajectories of CD, ODD, and ADHD were…

van Lier, Pol A. C.; van der Ende, Jan; Koot, Hans M.; Verhulst, Frank C.

2007-01-01

470

Against All Odds: The Achievements of Community-Based Development Organizations.  

ERIC Educational Resources Information Center

Community-based development organizations (CBDOs) appear to be a major force for the economic and physical rejuvenation of distressed, low-income communities. A CBDO is a private nonprofit group that serves a low-income community or constituency, is governed by a community-based board, and is an ongoing producer, with at least one completed…

National Congress for Community Economic Development, Washington, DC.

471

Against All Odds: Positive Life Experiences of People with Advanced Amyotrophic Lateral Sclerosis.  

ERIC Educational Resources Information Center

Describes the nature of positive life experiences of 13 people coping exceptionally well while living with advanced amyotrophic lateral sclerosis (ALS), or Lou Gehrig's, disease and the resulting significant physical disabilities. Emerging themes were the use of cognitive reappraisal, reframing, and intellectual stimulation as coping mechanisms;…

Young, Jenny M.; McNicoll, Paule

1998-01-01

472

Electroweak Physics at the ILC  

E-print Network

Some aspects of electroweak physics at the International Linear Collider (ILC) are reviewed. The importance of precision measurements in the Higgs sector and in top-quark physics is emphasized, and the physics potential of the GigaZ option of the ILC is discussed. It is shown in particular that even in a scenario where the states of new physics are so heavy that they would be outside of the reach of the LHC and the first phase of the ILC, the GigaZ precision on the effective weak mixing angle may nevertheless allow the detection of quantum effects of new physics.

Georg Weiglein

2007-11-19

473

Semiparametric Odds Rate Model for Modeling Short-Term and Long-Term Effects with Application to a Breast Cancer Genetic Study  

PubMed Central

The proportional odds model is commonly used in the analysis of failure time data. The assumption of constant odds ratios over time in the proportional odds model, however, can be violated in some applications. Motivated by a genetic study with breast cancer patients, we propose a novel semiparametric odds rate model for the analysis of right-censored survival data. The proposed model incorporates the short-term and long-term covariate effects on the failure time data and includes the proportional odds model as a nested model. We develop efficient likelihood-based inference procedures and establish the large sample properties of the proposed non-parametric maximum likelihood estimators. Simulation studies demonstrate that the proposed methods perform well in practical settings. An application to the motivating example is provided. PMID:24815054

Yuan, Mengdie

2014-01-01

474

Teachers' approaches to teaching physics  

NASA Astrophysics Data System (ADS)

Benjamin Franklin said, "Tell me, and I forget. Teach me, and I remember. Involve me, and I learn." He would not be surprised to learn that research in physics pedagogy has consistently shown that the traditional lecture is the least effective teaching method for teaching physics. We asked high school physics teachers which teaching activities they used in their classrooms. While almost all teachers still lecture sometimes, two-thirds use something other than lecture most of the time. The five most often-used activities are shown in the table below. In the January issue, we will look at the 2013 Nationwide Survey of High School Physics teachers. Susan White is Research Manager in the Statistical Research Center at the American Institute of Physics; she direct