428 research outputs found
Feel the difference! The influence of ease experiences on the direction of social comparisons
"The present work investigates if ease/difficulty experiences associated with social comparison information shape the direction of the comparison. In particular, we test the hypothesis that standards of comparison associated with experiences of ease lead to assimilation whereas standards processed under experiences of difficulty result in comparative contrast. In line with this hypothesis, we found in Experiment 1 that the easy processing of a standard led to assimilation whereas difficult processing of the same standard led to contrast. This finding was replicated in Experiment 2, even though the ease/difficulty experiences were this time introduced independently of the standard. Finally, Experiment 3 tested the boundary conditions of the influence of experiences by showing their flexible use in judgmental processes." [author's abstract
Технологии информационной власти в условиях глобализации
Представлен анализ эволюции дискурса по проблеме современной власти в направлении изменений технологий информационной власти в условиях глобализации. Исследуется проблема развития новых технологий формирующейся информационной власти в условиях глобализации
Decay of the Maxwell field on the Schwarzschild manifold
We study solutions of the decoupled Maxwell equations in the exterior region
of a Schwarzschild black hole. In stationary regions, where the Schwarzschild
coordinate ranges over , we obtain a decay rate of
for all components of the Maxwell field. We use vector field methods
and do not require a spherical harmonic decomposition.
In outgoing regions, where the Regge-Wheeler tortoise coordinate is large,
, we obtain decay for the null components with rates of
, , and . Along the event horizon and in ingoing regions, where ,
and when , all components (normalized with respect to an ingoing null
basis) decay at a rate of C \uout^{-1} with \uout=t+r_* in the exterior
region.Comment: 37 pages, 5 figure
Simple Three-Integral Scale-Free Galaxy Models
The Jeans equations give the second moments or stresses required to support a
stellar population against the gravity field. A general solution of the Jeans
equations for arbitrary axisymmetric scale-free densities in flattened
scale-free potentials is given. A two-parameter subset of the solution for the
second moments for the self-consistent density of the power-law models, which
have exactly spheroidal equipotentials, is examined in detail. In the spherical
limit, the potential of these models reduces to that of the singular power-law
spheres. We build the physical three-integral distribution functions that
correspond to the flattened stellar components. Next, we attack the problem of
finding distribution functions associated with the Jeans solutions in flattened
scale-free potentials. The third or partial integral introduced by de Zeeuw,
Evans and Schwarzschild for Binney's model is generalised to thin and near-thin
orbits moving in arbitrary axisymmetric scale-free potentials. The partial
integral is a modification of the total angular momentum. For the
self-consistent power-law models, we show how this enables the construction of
simple three-integral distribution functions. The connexion between these
approximate distribution functions and the Jeans solutions is discussed in some
detail.Comment: 14 pages, 7 postscript figures, to appear in Monthly Notice
Local energy decay of massive Dirac fields in the 5D Myers-Perry metric
We consider massive Dirac fields evolving in the exterior region of a
5-dimensional Myers-Perry black hole and study their propagation properties.
Our main result states that the local energy of such fields decays in a weak
sense at late times. We obtain this result in two steps: first, using the
separability of the Dirac equation, we prove the absence of a pure point
spectrum for the corresponding Dirac operator; second, using a new form of the
equation adapted to the local rotations of the black hole, we show by a Mourre
theory argument that the spectrum is absolutely continuous. This leads directly
to our main result.Comment: 40 page
Descriptive geometry in the life of the future engineer
The discipline "Descriptive Geometry and Engineering Graphics", relating to the disciplines of general education cycle, being very time-consuming, "opens the door" for future creativity and thetransfer of technical ideas, which are currently very relevant in the educational process
Novel Schizophrenia Risk Gene TCF4 Influences Verbal Learning and Memory Functioning in Schizophrenia Patients
Background: Recently, a role of the transcription factor 4 (TCF4) gene in schizophrenia has been reported in a large genome-wide association study. It has been hypothesized that TCF4 affects normal brain development and TCF4 has been related to different forms of neurodevelopmental disorders. Schizophrenia patients exhibit strong impairments of verbal declarative memory (VDM) functions. Thus, we hypothesized that the disease-associated C allele of the rs9960767 polymorphism of the TCF4 gene led to impaired VDM functioning in schizophrenia patients. Method: The TCF4 variant was genotyped in 401 schizophrenia patients. VDM functioning was measured using the Rey Auditory Verbal Learning Test (RAVLT). Results: Carriers of the C allele were less impaired in recognition compared to those carrying the AA genotype (13.76 vs. 13.06; p = 0.049). Moreover, a trend toward higher scores in patients with the risk allele was found for delayed recall (10.24 vs. 9.41; p = 0.088). The TCF4 genotype did not influence intelligence or RAVLT immediate recall or total verbal learning. Conclusion: VDM function is influenced by the TCF4 gene in schizophrenia patients. However, the elevated risk for schizophrenia is not conferred by TCF4-mediated VDM impairment. Copyright (C) 2011 S. Karger AG, Base
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