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391.
392.
This paper presents estimates of daily average per capita fish consumption by age and gender for the 48 conterminous states. The estimated consumption rates are reported for three fish habitats: freshwater/estuarine fish, marine fish, and all fish. The estimates were generated from the combined 1989, 1990, and 1991 Continuing Survey of Food Intake by Individuals (CSFII), a national food consumption survey conducted by the United States Department of Agriculture (USDA). Point and interval estimates of per capita fish consumption were generated from the empirical distribution of daily average per capita consumption. The point estimates include the mean, 50th, 75th, 90th, 95th, and 99th percentiles. Ninety percent confidence intervals are provided for the estimated mean and 90% bootstrap intervals are provided for percentile estimates. Information in a recipe file provided by USDA was used to calculate the amount of fish in recipes which contain fish. The estimated consumption rates are based on the weight of fish in its prepared or "as consumed" condition. The estimated mean consumption rate for all fish for the U.S. population of the 48 conterminous states was 15.65 grams/person/day (C.I.:14.67–16.63) of which 4.71 grams/person/day (C.I.:4.17–5.25) was freshwater/estuarine fish and 10.94 grams/person/day (C.I.: 10.14–11.73) was marine fish. 相似文献
393.
394.
E. Helen Berry 《Rural sociology》2000,65(4):658-667
Research in Rural Sociology and Development: Focus on Migration, edited by Harry K. Schwarzweller and Brendan P. Mullan. Population Change in the Rural West: 1975–1990, edited by John M. Wardwell and James H. Copp. Lanham, MD Community of Strangers: Change, Turnover, Turbulence and the Transformation of a Midwestern Country Town, by Joseph A. Amato and John Radzilowski. 相似文献
395.
Censored median regression has proved useful for analyzing survival data in complicated situations, say, when the variance is heteroscedastic or the data contain outliers. In this paper, we study the sparse estimation for censored median regression models, which is an important problem for high dimensional survival data analysis. In particular, a new procedure is proposed to minimize an inverse-censoring-probability weighted least absolute deviation loss subject to the adaptive LASSO penalty and result in a sparse and robust median estimator. We show that, with a proper choice of the tuning parameter, the procedure can identify the underlying sparse model consistently and has desired large-sample properties including root-n consistency and the asymptotic normality. The procedure also enjoys great advantages in computation, since its entire solution path can be obtained efficiently. Furthermore, we propose a resampling method to estimate the variance of the estimator. The performance of the procedure is illustrated by extensive simulations and two real data applications including one microarray gene expression survival data. 相似文献
396.
The Impact of Parental Occupation and Socioeconomic Status on Choice of College Major 总被引:1,自引:0,他引:1
Karen Leppel Mary L. Williams Charles Waldauer 《Journal of Family and Economic Issues》2001,22(4):373-394
This study examines the effects of socioeconomic status and parental occupation on choice of college major, with special attention directed toward female and male differences. The study uses multinomial logit analysis and data from the National Center for Education Statistics (NCES) 1990 Survey of Beginning Postsecondary Students (BPS). Having a father in a professional or executive occupation has a larger effect on female students than does having a mother in a similar occupation. The opposite holds for males. Women from families with high socioeconomic status are less likely to major in business; the opposite holds for males. Students who believe that being very well off financially is very important are more likely to major in business than are other students. 相似文献
397.
As cities around the world struggle to cope with increasing populations, major new master planned housing developments are being undertaken to meet the demand for housing. Such urban developments are influencing workforce, household, and community relations, which in turn drive health and well-being outcomes, and affect social capital and labour market participation. This paper reports findings from the first phase of data collection for the Work, Home and Community Project. Fourteen focus groups were conducted with 68 men and women who live and/or work at newly developed master planned communities in South Australia and Victoria. Findings indicate that familiarity, availability, and the enabling of social bridges contribute to the development of community and social capital in these residential areas. For individuals at different stages of life these factors were facilitated or inhibited by specific physical and social infrastructures in the residential area and the workplace. At a time when concerns are being raised about the ability of people to combine work, home, and community these findings shed some light on the physical and social infrastructures that can enable or constrain the building of healthy communities. 相似文献
398.
Helen O’Nions 《Intercultural Education》2010,21(1):1-13
This article analyses and welcomes the decision of the Grand Chamber of the European Court of Human Rights which held that the use of special schools for Roma pupils was contrary to the right to an education coupled with the prohibition on discrimination. The decision has wide ramifications for the education of minority, particularly Roma, pupils who are often sent to remedial schools or special classes as an alternative to mainstream, integrated education. It is argued that such segregation, whilst it may arise from a legitimate intention to address educational disadvantage, cannot achieve such a goal in a climate of separation and intolerance which permeates the wider society. The Grand Chamber’s willingness to scrutinise the wider societal context and to allow statistical evidence to suggest a prime facie case of indirect discrimination, will be welcomed by those seeking a more pro‐active non‐discrimination platform from the European Court of Human Rights (ECHR). 相似文献
399.
Current models of the factors underlying management performance make use of a variety of variables at different levels of analysis. A framework is presented in which variables of three different types are linked together. Using data from a sample (n = 437) of British managers this article explores relationships between personality factors (using the big-five factors), work competencies and managerial performance. Results from the analyses reveal a set of underlying competency factors, which show different patterns of correlation with two facets of performance: current proficiency and promotability. In turn, these factors and the facets of performance show relationships with the big-five personality factors. Current proficiency is more closely related to competencies of organization, specialization and analysis – competencies more likely to be displayed by people who are conscientious and introverted. Promotability is linked more closely to competencies concerning action/motivation, flexibility/sensitivity and communication – competencies more likely to be displayed by people who are extroverted with lower conscientiousness and agreeableness. 相似文献
400.
Gareth Williams Alex Duncan Pierre Landell‐Mills Sue Unsworth 《Development policy review : the journal of the Overseas Development Institute》2009,27(1):5-31
Theories of growth have made progress in understanding the mechanisms of growth in economic terms. However, there is less understanding of the political processes that enable or obstruct these mechanisms. This article provides a four‐stage framework to clarify and analyse the connections between politics and growth: (i) discussing the basic conditions essential for growth; (ii) suggesting that whether or not these conditions emerge depends on specific forms of public‐private interaction; (iii) linking these relationships to the incentives facing those in political power and investors; and (iv) considering the factors at country level that may help to push incentives in a pro‐growth direction. 相似文献