In this paper, we study the recognition complexity of discrete geometric 2gures (rectangles, squares, circles, ellipses) on a retina by diameter-limited and order-restricted perceptrons. We construct a diameter-limited recognition perceptron for the family of rectangles, beginning with local con2gurations, which is di6erent from the one shown by Minsky et al. (Perceptrons: An Introduction to Co...

INTRODUCTION Breastfeeding promotion is one of the most important strategies against infant mortality and to control child undernourishment. Despite policies and plans to promote and protect breastfeeding in Colombia, its practice is low and its duration is short. OBJECTIVE To propose an ecology framework to interpret and incorporate contextual, interpersonal, and individual factors associate...

AN INTRODUCTION TO THE PLANT SCIENCES By WILLIAM C. DARRAH, Tutor in the Department of Biology and Research Curator in the Botanical Museum, Harvard University. This book offers a concise, humanistic account, of the nature of the plant kingdom. It is intended for use by students in a half-year or one-semester course in botany or plant biology. Emphasis is placed on these four recent development...

At present there is a degree of uncertainty regarding when, how and in what form gluten should be introduced into the infant diet. For years the recommendations of the ESPGHAN Committee on Nutrition have prevailed, which include avoiding early introduction, before 4 months, and late, after 7 months, and gradually introducing gluten into the diet while the infant is being breastfed, with the aim...

Statistical mechanics deals with systems having a large number of particles. In statistical mechanics, large scale properties (such as temperature, pressure etc) are studied by applying probability theory to a large number of small particles. Hence this is a probabilistic theory and the behaviour of all of the system is studied using the average individual behaviour of particles. With small num...