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S. K. Gaisie 《Demography》1975,12(1):21-34
This paper attempts to measure infant and child mortality levels and also to determine their structure by utilizing the results of the 1968–1969 National Demographic Sample Survey which was conducted under the directorship of the author. Among the major problems encountered in the exercise are the adjustment of the current raw mortality data and the estimation of infant and child mortality from independent source material. The estimated infant mortality rates range from 56 per 1,000 live births in the Accra Capital District to 192 in the Upper Region during the late 1960’s. The urban rate is lower than the rural rate, 98 as against 161 per 1,000 live births. A large proportion of the deaths among children aged 0–4 occur in the second year of life, and deaths in this age group account for the bulk of the deaths within the age group 1–4 years. 相似文献
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George PM Ebanks GE Nobbe CE Anwar M 《International journal of sociology of the family》1976,6(1):57-69
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. 相似文献
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On the basis of discussion and analysis during and following an ATSDR science panel on the bioavailability of mercury in soils, it is apparent that the default assumption of 100% relative bioavailability for mercury-contaminated soils is excessively conservative. However, current knowledge does not allow the development of default assumptions or guidelines for determining relative bioavailability of mercury in soils. Until such default assumptions or guidelines can be developed, site-specific assays of bioavailability, preferably using either animal bioassays or validated in vitro techniques, may provide the best approach for estimating soil-mercury bioavailability. 相似文献
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E. Sharon Mason 《英国管理杂志》1997,8(2):163-173
In this research case study, the competing hypothesis of socialization, structural and social role theories were derived and used to explore and compare the job attitudes and satisfaction of women and men in a Canadian insurance company subsequent to voluntary implementation of an employment equity programme. Gender comparisons of both managerial and clerical employees on individual facets of satisfaction indicated the most support for social role theory, some support for structural theory and the least support for socialization theory. These findings indicate that managerial women and men tend to derive work satisfaction from similar sources. The variation in facet results cautions against global conclusions about gender and job satisfaction. Unanticipated consequences such as a 'backlash' (Faludi, 1991) of managerial men and a 'glass escalator' (Williams, 1992) for clerical men were also suggested by the findings in this case. A key implication is the potential benefit to both organizations and managerial women from steps taken to level the structural playing field. 相似文献
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The objective of this study was to determine the impact of task information (TI) provided by an interface agent during the idea evaluation and integration step of the problem formulation stage of the problem solving process. The effectiveness assessment was based on solving diagnostic decision problems in the domain of complex industrial machinery. Ten domain experts participated in this study. Decision support was provided by a case-based reasoning system. Findings suggest that TI provided by the interface agent had no effect on the decision maker's performance, nor on the associated cognitive effort. However, a verbal protocol analysis revealed that the ten subjects used the interface agent to verify their decision processes. The results and their implications are discussed with respect to current findings in the area of decision support systems. 相似文献