577 research outputs found
Scattering in D=5 super Yang-Mills theory and the relation to (2,0) theory
Compactifying the A_1 version of (2,0) theory on a circle gives rise to
five-dimensional, maximally supersymmetric Yang-Mills theory. In the Coulomb
branch, where the SU(2) gauge group is spontaneously broken to a U(1) subgroup,
the degrees of freedom are constituted by one massless and two massive vector
multiplets. Because of the relation to the six-dimensional (2,0) theory, we are
then interested in scattering processes where both the in-state and the
out-state consist of one massless and one massive particle. We show that the
corresponding part of the S matrix is determined by the symmetries of the
theory up to a single unknown function, which depends on the energy and mass of
the incoming particles, together with the scattering angle. Performing a
straight forward scattering calculation by means of Feynman diagrams, this
function is determined to leading order in a low-energy approximation. The
result is strikingly simple, and it coincides exactly with the corresponding
function in the (2,0) theory.Comment: 17 pages, 1 figur
A self-assembled monolayer of a fluorescent guest for the screening of host molecules
The polarity-dependent fluorescence of self-assembled monolayers of dansyl adsorbates on glass enables monitoring of its specific interactions with B-cyclodextrin. \u
Free tensor multiplets and strings in spontaneously broken six-dimensional (2,0) theory
We first review the representations of the six-dimensional (2,0) superalgebra
on a free tensor multiplet and on a free string. We then construct a
supersymmetric Lagrangian describing a free tensor multiplet. (It also includes
a decoupled anti self-dual part of the three-form field strength.) This field
theory is then rewritten in variables appropriate for analyzing a situation
where the R-symmetry is spontaneously broken by the vacuum expectation values
of the scalar moduli fields. Finally, we construct a supersymmetric and
kappa-symmetric action for a free string.Comment: 15 pages, LaTe
Supersymmetric coupling of a self-dual string to a (2,0) tensor multiplet background
We construct an interaction between a (2,0) tensor multiplet in six
dimensions and a self-dual string. The interaction is a sum of a Nambu-Goto
term, with the tension of the string given by the modulus of the scalar fields
of the tensor multiplet, and a non-local Wess-Zumino term, that encodes the
electromagnetic coupling of the string to the two-form gauge field of the
tensor multiplet. The interaction is invariant under global (2,0)
supersymmetry, modulo the equations of motion of a free tensor multiplet. It is
also invariant under a local fermionic kappa-symmetry, as required by the
BPS-property of the string.Comment: 12 pages, LaTe
Genetics of gene expression characterizes response to selective breeding for alcohol preference
Numerous selective breeding experiments have been performed with rodents, in an attempt to understand the genetic basis for innate differences in preference for alcohol consumption. Quantitative trait locus (QTL) analysis has been used to determine regions of the genome that are associated with the behavioral difference in alcohol preference/consumption. Recent work suggests that differences in gene expression represent a major genetic basis for complex traits. Therefore, the QTLs are likely to harbor regulatory regions (eQTLs) for the differentially expressed genes that are associated with the trait. In this study, we examined brain gene expression differences over generations of selection of the third replicate lines of high and low alcohol-preferring (HAP3 and LAP3) mice, and determined regions of the genome that control the expression of these differentially expressed genes (de eQTLs). We also determined eQTL regions (rv eQTLs) for genes that showed a decrease in variance of expression levels over the course of selection. We postulated that de eQTLs that overlap with rv eQTLs, and also with phenotypic QTLs, represent genomic regions that are affected by the process of selection. These overlapping regions controlled the expression of candidate genes (that displayed differential expression and reduced variance of expression) for the predisposition to differences in alcohol consumption by the HAP3/LAP3 mice
Improving Practice Accessibility Through MyChart Utilization
Aims for Improvement Increase patient portal MyChart activation for a cohort of approximately 2,000 patients at JFMA by 1% from February to April 2021. Demonstrate evidence of utilization including appointment scheduling, results review, and communication with providers through MyChart after activation
Pain psychology in the 21st century: lessons learned and moving forward
Background and aims In the spring of 2019, Professor Steven J. Linton, the founder of the Center for Health and Medical Psychology (CHAMP) at Ărebro University, Sweden, formally retired. As a tribute to his scholarly work covering decades of influence and inspiration to the field of pain psychology, the research center organized a topical conference titled âPain in the 21st century: Where do we come from and where are we going?â, which resulted in this state-of the-art synthesis. The aim of this declaration is to highlight lessons learned but not in the least is meant to inspire and guide our continued journey forward, developing pain psychology into the 21st century. Methods Several collaborators of Professor Linton have summarized and reflected on the current state-of-the-art of pain psychology from the perspective of his input to the field, as well as on developments from the last years of advancements in pain psychology. Results The topics have been divided into six themed sections covering the fear avoidance model, transdiagnostics, secondary prevention, risk- and protective factors, communication and contextual factors. The sections cover a broad spectrum, from basic experimental studies, integrating emotion and motivational theories into current theoretical models, to applied research on the effect of early interventions as well as sophisticated emotion-focused treatment models for pain patients with concurrent emotional ill-health. Conclusions There have been major advancements within pain psychology research during the last decades, moving the field towards a more comprehensive picture, taking emotional and motivational aspects into account to understand pain sufferers. Although psychologically informed interventions in general mainly focus on the individual, it has been put forward that pain management is highly influenced by the surrounding environment, including communication with health care providers, and the occupational and social context. Implications Professor Steven J. Linton has been at the forefront of pain psychology research during the last decades, and inspired by his work this journey will continue into the 21st century, with the ultimate goal of enhancing the understanding and treatment for all people suffering from persistent and disabling pain
Patient-reported negative experiences related to caries and its treatment among Swedish adult patients
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