Gravitational waves in preheating

We study the evolution of gravitational waves through the preheating era that follows inflation. The oscillating inflaton drives parametric resonant growth of scalar field fluctuations, and although super-Hubble tensor modes are not strongly amplified, they do carry an imprint of preheating. This is clearly seen in the Weyl tensor, which provides a covariant description of gravitational waves.Comment: 8 pages, 8 figures, Revte

Ventricular Tachycardia in the Dog

Ventricular arrhythmias are not uncommon. Practitioners should realize that many arrhythmias are potentially very dangerous. Unfortunately, most veterinarians do not have electrocardiograpic equipment available as a diagnostic. aid. It is hoped that more practitioners will add this valuable item to their existing diagnostic tools, as they did X-ray units not too many years ago

FEASIBILITY OF AN OKLAHOMA FRESH GREENS AND COWPEAS PACKING COOPERATIVE

Oklahoma's green producers are not benefiting from a growing fresh market. In order to seize the opportunities offered by the growing fresh market for leafy greens, investment in packing facilities have been evaluated. To make use of these facilities during summer months, the addition of a cowpea shelling enterprise is considered. A business plan for a new generation cooperative is estimated using an updated version of "The Packing Simulation Model" (PACKSIM) The business associates PACKSIM with @RISK®, to incorporate risks in the financial analysis.Agribusiness,

Are Repeatedly Extorted Businesses Different? A Multilevel Hurdle Model of Extortion Victimization

Objectives: Research consistently shows that crime concentrates on a few repeatedly victimized places and targets. In this paper we examine whether the same is true for extortion against businesses. We then test whether the factors that explain the likelihood of becoming a victim of extortion also explain the number of incidents suffered by victimized businesses. The alternative is that extortion concentration is a function of event dependence. Methods: Drawing on Mexico’s commercial victimization survey, we determine whether repeat victimization occurs by chance by comparing the observed distribution to that expected under a Poisson process. Next, we utilize a multilevel negative binomial-logit hurdle model to examine whether area- and business-level predictors of victimization are also associated with the number of repeat extortions suffered by businesses. Results: Findings suggest that extortion is highly concentrated, and that the predictors of repeated extortion differ from those that predict the likelihood of becoming a victim of extortion. While area-level variables showed a modest association with the likelihood of extortion victimization, they were not significant predictors of repeat incidents. Similarly, most business-level variables significantly associated with victimization risk showed insignificant (and sometimes contrary) associations with victimization concentration. Overall, unexplained differences in extortion concentration at the business-level were unaffected by predictors of extortion prevalence. Conclusions: The inconsistent associations of predictors across the hurdle components suggest that extortion prevalence and concentration are fueled by two distinct processes, an interpretation congruent with theoretical expectations regarding extortion that considers that repeats are likely fueled by a process of event dependence

Searching for answers and validation: Australian women's experiences of coping with the adverse sexual effects of antidepressants

Sexual difficulties relating to selective serotonin reuptake inhibitor (SSRI) medication have an impact on quality of life and are a common cause for non-adherence to medication. While most research has focussed on the prevalence and treatment of sexual difficulties, little is known about how patients cope with the adverse sexual effects of SSRIs. This qualitative study, using Interpretive Phenomenological Analysis (IPA), investigated the experiences of 10 Australian women currently coping with the adverse sexual effects of this antidepressant by conducting semi-structured interviews. This paper presents one major theme from the study and reports the findings related to women's self-reported experiences of interacting with GPs in their search for answers and validation of their concerns. Findings from the study add to the current literature by providing an insight into how interactions with GPs impact on women's abilities to cope with adverse sexual effects. Empathic discussions and shared decision-making between GPs and women can provide the opportunity to improve the management of the adverse sexual effects of SSRIs and may lead to improved outcomes for women