Visual Rays are Parallel

How parallel are the primate visual pathways?

The visual system, like all sensory systems, contains parallel pathways (see Stone 1983). Recently, much emphasis has been placed on the relationship between two subcortical and two cortical pathways. It has been suggested that the cortical and subcortical pathways are continuous, so that distinct channels of information that arise in the retina remain segregated up to the highest levels of vis...

Parallel Searching on m Rays

In this paper we investigate parallel searching on m concurrent rays. We assume that a target t is located somewhere on one of the rays and that a group of m point robots has to reach t. Furthermore, we assume that the robots have no way of communicating over distance. Given a strategy S we are interested in the competitive ratio which is deened as the ratio of the time needed by the robots usi...

Parallel Sear hing on m Rays ?

The effect of visual impairment on emotional development and emotional competence in learners who are visual impairment

Abstract Background and Aim: Emotion is a strong affective perception or feeling that arises from personal circumstances, one's mood, or communication with others. Emotions are multidimensional and have holistic structures that consist of different dimensions such as behavioral expression, physiological layers, phenomenological experience, cognitive processes and social context. The aim of ...

Cosmic rays: are air crew at risk?

This article reviews the current knowledge about cosmic rays and their possible effects on health of air crew, discusses research directions necessary for establishing and measuring the risks, and highlights the need for physicians and air crew to be informed, despite the inconclusiveness of the evidence. A literature review of computerised medical and scientific databases was carried out. Rece...