Anatomy of quantum chaotic eigenstates

The eigenfunctions of quantized chaotic systems cannot be described by explicit formulas, even approximate ones. This survey summarizes (selected) analytical approaches used to describe these eigenstates, in the semiclassical limit. The levels of description are macroscopic (one wants to understand the quantum averages of smooth observables), and microscopic (one wants informations on maxima of eigenfunctions, "scars" of periodic orbits, structure of the nodal sets and domains, local correlations), and often focusses on statistical results. Various models of "random wavefunctions" have been introduced to understand these statistical properties, with usually good agreement with the numerical data. We also discuss some specific systems (like arithmetic ones) which depart from these random models.Comment: Corrected typos, added a few references and updated some result

Diaphragmatic Hernia in Horses in Israel: A Case Series. In: Israel Journal of Veterinary Medicine - Vol. 70 - N°1 - Mar. 2015

Diaphragmatic hernia (DH) is possibly more frequent in the horse than typically reported in the literature. Since DH is not as rare as perceived, reporting on its occurrence is critical in order to increase awareness of this problem. DH typically presents as an emergency situation, whose prompt treatment influences the prognosis. Thus, it should be included in the differential diagnosis of horses presenting with signs of colic or of respiratory distress, or with a combination of the two. The aims of this study were to determine the prevalence of DH cases at the Veterinary Teaching Hospital of the Koret School of Veterinary Medicine and to describe the clinical signs, case management and outcome of these cases. The equine medical records of our hospital for January 2008 -August 2012 were reviewed. The information retrieved included chief complaints, mode of diagnosis, physical characteristics of the hernia, organs found in the thorax, treatment, results and, where relevant and pathology report. The number of DHs was compared to the hospital's caseload and colic surgeries during the reference period. Four horses were presented with DH in the reference period constituting 0.46% of all surgeries and 1.29 % of all colic surgeries in the reference period, and 0.14% of the annual referral figure. Three of the four cases showed signs of colic with respiratory symptoms, whereas the fourth presented only acute respiratory distress. The survival rate was 25%, one patient being successfully treated. The prevalence of DH was found to be more frequent at the KVSM-VTH than previously reported. Early diagnosis and a suitable surgical approach proved essential to the successful surgical repair of DH, but the overall survival rate remained low

Agreement among three different equine venipuncture sites with regard to measurement of packed cell volume and total solids

The primary objective of this study was to determine the agreement between the packed cell volume (PCV) and total solids (TS) values in blood collected from the jugular vein (JV) in comparison with the cephalic vein (CV) and the transverse facial venous sinus (TFVS) in healthy adult horses. A total of 72 samples were taken from 24 horses. We found high agreement that reflects no clinically relevant differences between the PCV and TS values obtained from the CV or the TFVS in comparison with the JV in standing healthy adult horses.R Dahan, GA Sutton, GL Oreff and G Kelme

Long-Distance Relationships: Use of Technology Advances in Communication, Idealization and Satisfaction

Long distance romantic relationships are becoming more and more common nowadays. There can be various concrete reasons that are the causes for this occurrence, among the most common, the pursuit of career opportunities, educational goals, military service, and migratory issues. The aim of this study is answering the question: how is possible to maintain this kind of relationship? This is explained from two variables: the first one refers to the technology advances which help the communication and the second one studied from the psychological periscope, the romantic idealization. It is approach the perception of this new type of relationships in the general population. Understanding technology influences in human life could help to develop more technological advances to the people to feel closer and to keep healthy relationships with themselves and the others, as well, it could bring lights to counseling and psychological therapy