Fertility differences between the family of orientation and the family or procreation in Barbados

Data from an island-wide probability sample of 4119 Barbadian females aged 16-50 were used to study whether there has been an intergenerational fertility decline between the respondents and their mothers. The fertility of the respondents, all from the low or lower middle class, was significantly lower than that of their mothers. However, the size of the family of procreation was seen to be positively related to the size of the family of orientation; i.e., those from large families tended to have large families and vice versa. There was, however, a regression to the mean. There were no differences between women from small and large families as to fertility norms, age at 1st use of contraceptives, or actual practice of contraception. Women from small families did tend to enter sexual relationships and get pregnant at a later age. The women from small families were better educated, earned higher incomes, and had higher status occupations, all factors which might have influenced their fertility. Women from larger families cited higher numbers for both small and large families than did the women from small families. This indicates a perceptual difference which was, in turn, related to fertility differences.     

做好新时期民族地区高校学生稳定工作的初探

随着改革开放的不断深入和社会主义市场经济的进一步发展,人们的社会生活和思想观念发生了深刻变化,经济全球化、生活多样化、价值多元化、信息网络化、高等教育大众化等新情况、新观念不断冲击着大学校园。高校学生稳定工作是高校各项事业健康发展的重要保证。要确保高校教学、科研及学生的稳定,必须加强和改进高校学生的思想政治教育工作,依法治校,以德治校。     

Some useful Wishart expectations based on the multivariatet-model

In this note we derive some useful expectations of some functions of the Wishart matrix based on the multivariatet-model. The results are generalizations of similar expectations of the usual Wishart matrix. Some applications are outlined.     

The organisational identity of science centres

This paper presents an empirically grounded mapping of the organisational identity that science centres in the UK are trying to carve out for themselves against the backdrop of developing organisational strategies and multiple external pressures, expectations and perceptions. I attempt this through a relational analysis that views the science centres’ organisational identity formation as constituted by and through a dialectic of autonomy and heteronomy that subtends the differential relationships science centres seek to cultivate vis‐à‐vis what I describe as the ‘parent’ fields – namely, science, formal education, the leisure industry and the museum. Science centres seek to stage a unique encounter of these four parent fields – an encounter that appropriates many significant dimensions of these fields without duplicating them. Through my analysis I hope to capture some of the key tensions and dilemmas that science centres and their organizational actors have to grapple with, the balancing acts they have to perform, and the complex organisational identity that is being forged in the process.     

新疆少数民族人口优生优育及生殖健康状况调查研究

本文根据实地调查资料与结合历年统计资料,对新疆的五个主要的少数民族,即维吾尔族、哈萨克族、回族、蒙古族和柯尔克孜族人口的优生优育及生殖健康进行综合分析,探索这些少数民族人口优生优育、生殖健康方面存在的问题并提出相应的结论与对策。     

A Study of the Relationship Between Innovation and Performance Among NPOs in Pakistan

Abstract

Innovation has become a core driver for the success and survival of organizations regardless of their size and nature. A plethora of literature has discussed the importance of innovation in profit-based organizations, while nonprofit organizations (NPOs) have generally been ignored in research. This study examines the influence of the sub-dimensions of innovation on the performance of NPOs. Data were collected through structured questionnaires using a sample size of 309 NPOs operating in the emerging market Pakistan. The hypotheses were tested through structural equation modeling (SEM) in AMOS.21. The results indicate that process innovation and organization innovation have significant positive influence on the performance of NPOs, while product innovation and marketing innovation have insignificant influence on the performance of NPOs. NPOs are advised to give enough attention to process and organization innovation in order to boost their performance. Future researchers are encouraged to test the model in other environmental settings. Implications for practice were discussed.     

Minimizing the expected time to detect a randomly located lost target using 3-dimensional search technique

Abstract

This paper considers a new model in search theory to find a randomly located target in the 3-dimensional space. An approximation algorithm that facilitates searching procedures for searchers or robots is presented. The expected time to detect the target is also proved. The statistical analysis by calculating the optimal search strategy which minimizes the time to detect the target, assuming trivariate standard normal distribution is provided, and the technique by flowcharts is designed as well. The effectiveness of this strategy is illustrated by introducing an application from real world.     

Urban and peri-urban aquaculture as an immediate source of food fish: Perspectives of Dhaka City,Bangladesh

This paper describes the present status of aquaculture activities in Dhaka City and its surrounding areas including the system of fish marketing and distribution and environmental and socioeconomic issues. Dhaka City contains over 10 million people and is expanding day by day. Demand of fish in the last 10 years has increased as a result of increases in population and income levels. The annual per capita consumption of fish is reported to drop by 0.5 kg since 1985. The reason for this decline is increased prices and decreased supply of fish. Fish supply to the city comes from catch in the rivers-estuaries and floodlands of Dhaka district, neighboring districts, imports from other areas and aquaculture in surrounding areas of the city. Considerable quantities of fish are imported from India, Myanmar and Thailand. Seasonal patterns are common both in supply and consumption of fish. Along with traditional rural household aquaculture, in recent years, urban and peri-urban aquaculture has also been popular. Three broad types of aquaculture activities are found in and around Dhaka City; these are polyculture of carp in ponds, monoculture of catfishs in ponds, and pen and cage aquaculture in open waters. The carp includes both Indian major carp and Chinese carp and some minor carp. The catfish group includes mainly Thai pangas (Pangasius sutchi). Tilapia (Oreochromis niloticus) is also widely popular among the farmers. The technology used for aquaculture is improved extensive to semi-intensive. Increasing demand for fish in the city markets has encouraged the expansion of peri-urban aquaculture with a corresponding increase in the proportion of farmed fish in the markets.