438 research outputs found
Communication of a Modern Trading Company in the Function of the Drafting of the Final Decision on Shopping
The aim of this paper is communication of modern trading business based on two-way communication between traders and customers. It is very important for buyers to have the opportunity to express themselves freely about the products or services that a particular trading company provides, and the buyers give suggestions on what should be improved. The objective of a modern trading company is to understand each client individually and use it to facilitate the decision making of customers to prefer to work with a particular company rather than with competition. Nothing provides loyalty better than excellent service. Merchandising as a form of communication seeks to influence all of its elements and knowledge to draw attention of the person-consumer in order to adopt and memorize the content communicated to him. The company, the supermarket, the hypermarket is able to define the strategies and policies of the merchandising elements, which will help build the image of the sales, as well as the way of presenting the products, resulting in the main hypothesis of work: Timely communication with consumers influences to a large extent final consumption decision
Coherent Vector Meson Photoproduction with Nuclear Breakup in Relativistic Heavy Ion Collisions
Relativistic heavy ions are copious sources of virtual photons. The large
photon flux gives rise to a substantial photonuclear interaction probability at
impact parameters where no hadronic interactions can occur. Multiple
photonuclear interactions in a single collision are possible. In this letter,
we use mutual Coulomb excitation of both nuclei as a tag for moderate impact
parameter collisions. We calculate the cross section for coherent vector meson
production accompanied by mutual excitation, and show that the median impact
parameter is much smaller than for untagged production. The vector meson
rapidity and transverse momentum distribution are very different from untagged
exclusive vector meson production.Comment: 14 pages, including 4 figure
Performance indicators for roadway bridges
Publicado em "Maintenance, monitoring, safety, risk and resilience of bridges and bridge networks". ISBN 978-1-138-02851-7The performance indicators should, by its definition, allow capturing the life-cycle degradation
processes affecting maintenance plans or the remaining lifetime. The qualitative or quantitative performance
indicators are obtained through visual inspections, non-destructive tests or monitoring systems. After their
quantification and the comparison with the respective performance goals and thresholds, a Quality Control
plan should be accomplished. The COST TU1406 Action aims to uniform the European performance indicators, systemize the knowledge on the Quality Control plans for bridges, establish quality specifications and finally to develop the guideline and recommendations for the assessment of performance indicators. This contribution focuses on the current work of the first Working Group, WG1, where the first step is a collection of the key performance indicators at a European level. First those key performance indicators which capture mechanical and technical properties and its degradation behavior are assessed, while the further consideration reflect on the natural aging, quality of the material, service life design methods, and sustainable, environmental, economic and social based indicators.COST (European Cooperation in Science and Technology)Project “LeCIE – Life-cycle assessment for railway construction – strategies and methods
Coping with negative mental images in social anxiety disorder: Investigating the potential benefits of image morphing
Negative mental imagery contributes to symptom maintenance in social anxiety disorder (SAD). Here, we investigated the effects of image morphing, a brief mental strategy designed to facilitate access to positive images. Participants with SAD and healthy control (HC) participants were randomly assigned to receive either image morphing or supportive counseling. Although initial training and 1-week daily practice were successful in equipping morphing participants across groups with the required skill, those assigned to morphing failed to demonstrate differential improvements in positive affect, negative affect, or self-perception relative to control participants during a subsequent social stress task. Ancillary analyses revealed that the number of positive details contained in retrieved or morphed images prior to the task significantly predicted the level of positive affect reported after the task, but this effect was observed only for HC participants. We discuss the need for future research to refine innovative imagery-based psychotherapeutic strategies for social anxiety.This research was undertaken thanks to funding awarded to the third author from the Canada Research Chairs Program, the Social Sciences and Humanities Research Council of Canada, and the Canadian Institutes of Health Research
Interference in Exclusive Vector Meson Production in Heavy Ion Collisions
Photons emitted from the electromagnetic fields of relativistic heavy ions
can fluctuate into quark anti-quark pairs and scatter from a target nucleus,
emerging as vector mesons. These coherent interactions are identifiable by
final states consisting of the two nuclei and a vector meson with a small
transverse momentum. The emitters and targets can switch roles, and the two
possibilities are indistinguishable, so interference may occur. Vector mesons
are negative parity so the amplitudes have opposite signs. When the meson
transverse wavelength is larger than the impact parameter, the interference is
large and destructive.
The short-lived vector mesons decay before amplitudes from the two sources
can overlap, and so cannot interfere directly. However, the decay products are
emitted in an entangled state, and the interference depends on observing the
complete final state. The non-local wave function is an example of the
Einstein-Podolsky-Rosen paradox.Comment: 13 pages with 3 figures; submitted to Physical Review Letter
Disciplina, honor, transgresión y castigo en el estamento armado venezolano. El caso del Tribunal Militar Judicial de Mérida 1988-2022
En la presente obra se estudia el funcionamiento del sistema disciplinario en la Fuerza Armada Venezolana, como el conjunto de normas disciplinarias que rigen su actuación y su decoro, los sistemas de seguimiento y evaluación de la conducta de los efectivos, los procedimientos para determinar las transgresiones, las sanciones, la administración de justicia, los entes sancionadores y las consecuencias derivadas de las actuaciones ilícitas
Inclusive meson production in peripheral collisions of ultrarelativistic heavy ions
There exist several proposals to use Weizs\"{a}cker-Williams photons
generated by ultrarelativistic heavy ions to produce exotic particles in
fusion reactions. To estimate the background conditions for such
reactions we analyze various mechanisms of meson production in very peripheral
collisions of ultrarelativistic heavy ions at RHIC and LHC energies. Besides
fusion they include also electromagnetic interactions
and strong nucleon-nucleon interactions in grazing collisions. All these
processes are characterised by low multiplicities of produced particles.
and events are simulated by corresponding Monte Carlo codes,
RELDIS and FRITIOF. In each of these processes a certain fraction of pions is
produced close to the mid-rapidity region that gives a background for the
events. The possibility of selecting mesons produced in
fusion events via different cut procedures is
demonstrated.Comment: 27 pages with 4 eps-figures included, uses axodraw.sty Tab.2 and 3
correcte
Coulomb corrections to production in ultra-relativistic nuclear collisions
The purpose of this paper is to explain the discrepancies existing in the
literature relative to pair production in peripheral heavy ion
collisions at ultra-relativistic energies. A controversial issue is the
possible cancellation of Coulomb corrections to the Born term in the pair
production cross-section. Such a cancellation has been observed in a recent
approach based on finding retarded solutions of the Dirac equation, but does
not seem to hold in a perturbative approach. We show in this paper that the two
approaches are in fact calculating different observables: the perturbative
approach gives the exclusive cross-section of single pair production, while the
other method gives the inclusive cross-section.
We have also performed a thorough study of the electron propagator in the
non-static background field of the two nuclei, the conclusion of which is that
the retarded propagator is in the ultra-relativistic limit a much simpler
object than the Feynman propagator, and can be calculated exactly.Comment: 31 pages LaTeX document, 10 postscript figures (expanded 3rd section,
version to be published in Nucl. Phys. A
Practicing self-compassion weakens the relationship between fear of receiving compassion and the desire to conceal negative experiences from others
This is a post-peer-review, pre-copyedit version of an article published in Mindfulness. The final
authenticated version is available online from Springer at: http://dx.doi.org/10.1007/s12671-017-0792-0Disclosure of personal distress is linked to important inter- and intrapersonal benefits. However, people who tend to view self-disclosure as being risky are likely to conceal their feelings and forgo opportunities to receive valuable social support. One such group of people may be those who fear receiving compassion. The current study of 85 female undergraduates investigated (a) whether fear of receiving compassion would predict decreased distress disclosure, and (b) whether inducing a self-compassionate mindset could help to temper the association between fear of receiving compassion and perceived risks of revealing one’s distress to others. Participants completed self-report questionnaires to measure trait-like fears of receiving compassion as well as general distress disclosure tendencies. They were then enrolled in a laboratory experiment in which they recalled a personal past negative experience and were randomly assigned to write about it in a self-compassionate, self-esteem enhancing, or non-directive way. Finally, they rated how risky disclosing their experience would feel and disclosed the event in a written letter to another person. At a trait level, results indicated that the more participants feared receiving compassion, the less they tended to disclose. Moreover, self-compassion training – but neither of the comparison conditions – significantly weakened the positive link between fear of receiving compassion and perceived risks of distress disclosure. These novel findings suggest that practicing self-compassion could help to neutralize the maladaptive relationship between fear of receiving compassion and perceived risk of disclosure.Social Sciences and Humanities Research Council of Canada, Grant 435-2012-0017 || Social Sciences and Humanities Research Council of Canada, Grant 430-2013-000757|| Canada Research Chairs, Grant 950-22314
Particle emission following Coulomb excitation in ultrarelativistic heavy-ion collisions
We study nuclear reactions induced by virtual photons associated with
Lorentz-boosted Coulomb fields of ultrarelativistic heavy ions. Evaporation,
fission and multifragmentation mechanisms are included in a new RELDIS code,
which describes the deexcitation of residual nuclei formed after single and
double photon absorption in peripheral heavy-ion collisions. Partial cross
sections for different dissociation channels, including the multiple neutron
emission ones, are calculated and compared with data when available. Rapidity
and transverse momentum distributions of nucleons, nuclear fragments and pions,
produced electromagnetically, are also calculated. These results provide
important information for designing large-rapidity detectors and zero-degree
calorimeters at RHIC and LHC. The electromagnetic dissociation of nuclei
imposes some constrains on the investigation of exotic particle production in
gamma-gamma fusion reactions.Comment: 26 LaTeX pages including 8 figures, uses epsf.st
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