A special class of the knapsack problem is called the separable nonlinear knapsack problem. This problem has received considerable attention recently because of its numerous applications. Dynamic programming is one of the basic approaches for solving this problem. Unfortunately, the size of state-pace will dramatically increase and cause the dimensionality problem. In this paper, an efficient a...

this one year retrospective study was conducted in mirza kuchak khan maternity hospital, tehran, 1989-1990, to compare complications of pregnancy in adolescent (below 20 years old ) and young adult (20-24 years old) mothers. the results were as follows: 14.4% of all the deliveries during the period of study were adolescent mothers. the proportions of the following complications were higher in t...

BACKGROUND There has been little interest in the research literature on public opinions regarding assisted conception and surrogacy, particularly in European countries, despite the growing evidence showing that problems in adaptation and coping may be related to perceived normative values. This study investigated British women's attitudes to surrogacy using components of the theory of planned b...

BACKGROUND In surrogate pregnancies the genetic parents have little opportunity for early bonding to their infant, either prenatally (in utero) or in the immediate postnatal period. The purpose of this article is to describe a new method for encouraging early parent-infant bonding after surrogate pregnancy by hospitalizing the genetic mother in the maternity ward immediately after the delivery....

Ethnographic studies in West Africa show that the practice of sending children away to be raised by relatives and nonrelatives is widespread among many ethnic groups. This paper is an attempt to explore the demographic relevance of the practice. The fostering information is obtained from two sources: the responses given by women to the question on children away from home, and by linking all chi...

Recent evidence indicates a growing demand for newborn white babies for adoption in this country as well as a decreasing supply. Increasing fertility problems among women are said to be a result of at least three factors: an increased incidence of veneral disease, side effects of contraceptive measures including birth control pills and the IUD, and couples deciding to wait until later in life t...