Bovine diarrhea virus (BVDV) causes a variety of economically important enteric and infertility problems. For that reason, several countries have eradicated the disease and some others have schemes in progress to achieve freedom from it. Although there is a considerable amount of information about the risk of BVDV transmission through contaminated semen used for AI, there is no available eviden...

Many lessons have been learned over the last 20 years about the development of large, complex systems. Structured programming techniques used for implementation have led to improved software quality and maintainability. Compilers and other tools have been developed to improve productivity and reliability. Management procedures have evolved that improved the control and stability of the developm...

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 ...