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21.
Maqattam, with a population of 17,000, is the largest of Cairo's garbage settlements. Twice a day, girls and young women aged 12-20 years sift through garbage in search of food scraps to feed their pigs, bundle animal bones, pick through glass and metal, and separate paper and plastic. 20 years ago, the Association for the Protection of the Environment (APE), an Egyptian nonprofit organization, began working in the settlement in an effort to improve both the standard of living in the community and women's status. A composting plant for pig manure was first installed, removing the product from yards and generating income for development. A second project involved 500 Cairo families who separated organic and inorganic garbage before pick-up by the garbage-collecting families, reducing by 50% the hours which Maqattam women and girls spend sorting. Particular effort was made to connect girls to nonfamilial institutions in the attempt to create employment which was close to home, acceptable to the community, readily learned, requiring low material investment, and having a market. To develop girls' skills and offer them a chance to earn income, the developers chose rug weaving, patchwork, and papermaking, while some young women have become home-visiting health workers. Project leaders are now looking into how to encourage men to be supportive of young women who assume new roles. The development project also opened an infant and child care center.  相似文献   
22.
Ofer H. Azar   《Journal of Socio》2004,33(6):745-764
Tipping is a multi-billion-dollar phenomenon that challenges the traditional assumption of selfish economic agents who have no feelings and do not care about social norms. This article reviews the early history of tipping and offers an economic analysis of different aspects of tipping. Using the historical evidence, it then addresses two major questions about tipping: why do people tip? And does tipping improve service quality? The reasons for tipping changed over the years, but conforming to social norms and avoiding embarrassment were generally the main reasons. Tipping seems to improve service quality; the extent of the improvement varies across occupations.  相似文献   
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The association of knowledge of health risks, living arrangements, and perceived stress with health-risk behaviors was examined in a sample of college students included in the Health Promotion and Disease Prevention Supplement of the National Health Interview Survey. Regressions of each health-risk behavior (dependent variable) were performed on the predicted correlates. Although knowledge was not associated with participation in physical activity or smoking, the study found that students who knew more about the harmful effects of alcohol drank less, and those with greater knowledge of health risks practiced fewer risky behaviors. Students living independently were more likely to smoke, and those living in residence halls were less like to do so. Drinking, however, was more common among students living in residence halls or independently than among those living at home. Hall residents engaged in more group physical activity than other students did, but their physical activity was unrelated to health-risk behaviors. Stress was associated with smoking but not with other health practices. The findings suggest that smoking may be less influenced by health knowledge and more associated than drinking is with a response to stress. Drinking appears to be a social activity associated with living among peers and is potentially modifiable by increased knowledge about the effects of alcohol on health.  相似文献   
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Despite the existence of a family planning program in Pakistan since 1965 and widespread knowledge among Pakistanis about contraception, there is a high level of unmet need for family planning. One recent survey found that while 53% of married women express the desire to avoid pregnancy, less than 20% use contraception. A recent Population Council study conducted in urban and rural areas of Punjab province investigated personal beliefs, family circumstances, social norms, and gender relations among 1310 married women and 554 of their husbands. The unmet need for contraception was highest among women over age 30 years, those with more living children, less educated women, and women living in rural areas. The study found that while most Pakistanis approve of family planning, obstacles to contraceptive use exist in most marriages. 97% of respondents who wanted another child wished for a boy. That preference for sons influences contraceptive use behavior. The fear of social disapproval of contraceptive use, perceived opposition from in-laws and husbands, and fear of health side effects and divine punishment were major reasons identified against contraceptive use. Female contraceptive users were more autonomous and likely to make domestic decisions without consulting their husbands, while husbands defer to social and cultural norms.  相似文献   
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This research examined racial differences in wellbeing among 440 older persons receiving home based services connected with Older Americans Act funded nutrition sites. These data clearly indicate that compared with white homebound aged, black aged receiving homebased services have more limited economic resources and live in more impoverished neighborhoods, are more irnpaired in their health and functional status, have more limited social resources and have more limited knowledge and access to services. Service utilization appears similar for both groups and the life perspective of blacks is somewhat higher than that of white homebound aged.  相似文献   
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When modeling multilevel data, it is important to accurately represent the interdependence of observations within clusters. Ignoring data clustering may result in parameter misestimation. However, it is not well established to what degree parameter estimates are affected by model misspecification when applying missing data techniques (MDTs) to incomplete multilevel data. We compare the performance of three MDTs with incomplete hierarchical data. We consider the impact of imputation model misspecification on the quality of parameter estimates by employing multiple imputation under assumptions of a normal model (MI/NM) with two-level cross-sectional data when values are missing at random on the dependent variable at rates of 10%, 30%, and 50%. Five criteria are used to compare estimates from MI/NM to estimates from MI assuming a linear mixed model (MI/LMM) and maximum likelihood estimation to the same incomplete data sets. With 10% missing data (MD), techniques performed similarly for fixed-effects estimates, but variance components were biased with MI/NM. Effects of model misspecification worsened at higher rates of MD, with the hierarchical structure of the data markedly underrepresented by biased variance component estimates. MI/LMM and maximum likelihood provided generally accurate and unbiased parameter estimates but performance was negatively affected by increased rates of MD.  相似文献   
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Data about 233 new car models were collected, and a measure of customer success in bargaining for a new car (alpha) was created by computing the ratio between the discount received on the manufacturer's suggested retail price (MSRP) and the negotiable range (MSRP − dealer's car cost). One hypothesis was that customers who purchase more expensive cars succeed less in bargaining because of their higher time value. A second hypothesis was that a positive correlation between the negotiable range and alpha should exist, because of either customer incentives to bargain or dealer's bargaining strategy. Both hypotheses were supported by the data.  相似文献   
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Although research has demonstrated poor visual skills in premature infants, few studies assessed infants’ gaze behaviors across several domains of functioning in a single study. Thirty premature and 30 full‐term 3‐month‐old infants were tested in three social and nonsocial tasks of increasing complexity and their gaze behavior was micro‐coded. In a one‐trial version of the visual recognition paradigm, where novel stimuli were paired with familiar stimuli, preterm infants showed longer first looks to novel stimuli. In the behavior response paradigm, which presented infants with 17 stimuli of increasing complexity in a predetermined “on‐off” sequence, premature infants tended to look away from toys more during presentation. Finally, during mother–infant face‐to‐face interaction, the most dynamic interpersonal context, preterm infants and their mothers displayed short, frequent episodes of gaze synchrony, and lag‐sequential analysis indicated that both mother and infant broke moments of mutual gaze within 2 sec of its initiation. The propotion of look away during the behavior response paradigm was related to lower gaze synchrony and more gaze breaks during mother–infant interactions. Results are discussed in terms of the unique and adaptive gaze patterns typical of low‐risk premature infants.  相似文献   
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