1,013 research outputs found
Trapping of Spin-0 fields on tube-like topological defects
We have considered the localization of resonant bosonic states described by a
scalar field trapped in tube-like topological defects. The tubes are
formed by radial symmetric defects in dimensions, constructed with two
scalar fields and , and embedded in the dimensional
Minkowski spacetime. The general coupling between the topological defect and
the scalar field is given by the potential .
After a convenient decomposition of the field , we find that the
amplitudes of the radial modes satisfy Schr\"odinger-like equations whose
eigenvalues are the masses of the bosonic resonances. Specifically, we have
analyzed two simple couplings: the first one is for a
fourth-order potential and, the second one is a sixth-order interaction
characterized by % . In both cases the
Schr\"odinger-like equations are numerically solved with appropriated boundary
conditions. Several resonance peaks for both models are obtained and the
numerical analysis showed that the fourth-order potential generates more
resonances than the sixth-order one.Comment: 7 pages, 10 figures, matches version published in Physics Letters
The Challenge of Maintaining our Physician-Scientist Workforce (Rare Breed/Endangered Species): Epidemiology & Anecdotes
As part of the mini-symposium entitled The Challenge of Maintaining our Physician-Scientist Workforce, Dr. Moore Simas discusses the epidemiology of physician scientists in the modern era with a focus on specialty-based and demographic issues
PPODS: Pregnancy and Postpartum Observational Dietary Study
An important contributor to weight gain among young women is postpartum weight retention; however, interventions aimed at promoting weight loss among post-partum women have generally been unsuccessful. This presentation will include an overview of a recently funded translational research project designed to evaluate whether associations among dietary consumption of saturated fat, fat deposition and weight loss observed in mice, can be observed in human subjects during pregnancy and the postpartum period
Why pregnant women with depression often slip through the cracks
One in seven women experience depression during pregnancy and after they give birth. This article explains how a model the authors created in Massachusetts to ensure that women with depression get the help they need is being implemented in other states
Addressing Perinatal Depression in the Outpatient Obstetric Setting
Presentation will discuss: (1) barriers that OB/Gyn providers and support staff encounter in recognizing depression and engaging perinatal women in treatment, (2) strategies to overcome barriers to treatment and (3) the development of interventions aimed at improving treatment entry and follow-up
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