1. Observations have been made on the changes in optical retardation accompanying the passage of impulses along crab leg nerves and squid giant axons.2. The nerves were mounted on the stage of a polarizing microscope, at 45 degrees to the planes of polarization and analysis, brightly illuminated with white light. During the nerve impulse the intensity of the light passing the analyser decreased...

prevention of disabilities and handicaps, including mental relardation and low intelligence, is one of the important aims of health programmes. therefore, understanding the causes of such disabilities could reduce their incidence. a cause of low iq and mental retardation is prematurity and this could be the result of low age of mothers at the time of pregnancy. this study investigates the relat...

Abstract: This study is carried out to describe the behaviour of vehicles flow on the road, in the presence of blocking effects. A non-linear three dimensional system of ordinary differential equations is used to describe vehicles flow on the road. The study classify total vehicles population on the road into three compartments as Free – Slow – Released vehicles. The formulated model is well-po...

PURPOSE To evaluate whether erroneous compensation for anterior segment retardation can be estimated and used to correct peripapillary (PP) retinal nerve fiber layer (RNFL) retardation measurements. METHODS Retardation measurements (for the 780-nm wavelength), given as RNFL thickness by the scanning laser polarimeter, were obtained at the macula and PP retina in 45 eyes of 45 normal subjects ...

title. A book on molecular pharmacology should be concerned primarily with drug-receptor interactions in terms of small molecule-biopolymer interactions. Yet, this text discusses neither protein structure nor nucleic acid structure and minimizes discussions of drug induced conformational changes. In other words, this volume is a good textbook of nonmolecular pharmacology. In the introduction th...

We proposed a taxonomy of advocate development in the field of developmental disabilities detived from the systematic evaluation of a Partnets in Policymaking program. Three developmental stages evolved: beginner, involved, and activist. Self-reports of advocacy actions and outcomes were collected from 3 participants with disabilities and 21 parents before and during training. A follow-up, semi...