We calculate the cross section for the dissociation of J/ψ by kaons within the framework of a meson exchange model. We find that, depending on the values of the coupling constants used, the cross section can vary from 5 mb to 30 mb at √ s ∼ 5 GeV. In relativistic heavy ion collisions J/ψ suppression has been recognized as an important tool to identify the possible phase transition to quark-gluo...

Thin section polarized-light microscopy is a simple, cost-effective and nondestructive technique utilized to delineate crystalline or amorphous solids at varying scales and spatial resolutions; thereby allowing the different phases to be studied within their textural framework. Estimates of chemical composition and insight into the solid’s genesis can be deduced via unique textural characterist...

Despite the World Health Organization’s (WHO) recommendation that caesarean section (c-section) rates should not exceed 15% [1], the high rates in some countries are cause for concern. For example, Italy, China, Mexico and Brazil all have rates higher than 36% [2] with great variation within each nation. The need for c-section has probably increased for many reasons, including rising rates of o...

Kjell Öberg, MD, PhD, is Professor of Endocrine Oncology at the Medical Faculty of Uppsala University, Sweden. He is founder and Head of the Endocrine Oncology Clinic and a specialist in endocrinology and internal medicine. He has more than 20 years of experience in the field of neuroendocrine tumors. Between 1986 and 1992 he was Clinical Associate Director of the Ludwig Institute for Cancer Re...

EDiTOR: Not too long ago, the most dreaded perhaps of all hemorrhagic complications in obstetrical practice was that following premature separation of the placenta. \Vhen fully under way it is a major emergency. A feeling existed that the hemorrhage involved more than the simple tearing and exposure of open blood vessels. Continuation of the hemorrhage even in the presence of what seemed to be ...

This patient, who had been operated on for pyosalpinx in April 1911 came back to hospital with a large ventral hernia. The abdominal section done on 13th December, 1912, was for the cure of the hernia. This was the first case done at this hospital with intravenous ether anaesthesia. The apparatus used was Rood's Apparatus for Infusion Anaesthesia (Meyer & Meltzer ?6-18-G). Five minutes before s...

YOHMAN, J.R., AND PARSONS, O.A. Verbal reasoning deficits in alcoholics. Journal of Nervous and Mental Diseases 175:219–223, 1987. Children of alcoholics (COA’s) are at higher risk than the general population for developing alcoholism.1 Evidence suggests that this risk is influenced by genetic factors (Hesselbrock 1995). Researchers have identified several biological traits that appear to be ge...