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61.
ABSTRACT. The purpose of the present study was to evaluate the association between extended unemployment insurance (UI) benefits and young adults’ job-seeking behavior. In particular, the study evaluated if the extension of UI benefits to 99 weeks in 2008 had direct effects on job search efforts. Three waves (2007–2009) of data (N = 915) from the National Longitudinal Survey of Youth were analyzed using multiple regression models to assess the association of UI benefits to young adults’ job search efforts. Additionally, the homogeneity of slope coefficients of the UI benefit on job search effort was evaluated across 3 years using an analysis of covariance (ANCOVA). The results of regression analyses suggest that UI benefits were negatively associated with job search efforts for 2007 and the pooled sample of 2007 to 2009, but the relationship was not significant for 2008 and 2009. The results of the ANCOVA suggest that the UI benefit extension of 2008 did not have any negative association with job search efforts. Future studies should explore the subjective experiences and decisions young adults make in consideration of unemployment, UI benefits, and job search efforts.  相似文献   
62.
The problem of elder abuse and neglect in South Africa is widespread, but the definition of abuse remains problematic. An expanded typology is needed to classify certain types of abuse reported commonly, such as marginalization, disrespect, exploitation and violence. The history of elder abuse and responses is traced, relevant legislation and selected intervention programs are reviewed, and research and the status of elder abuse are evaluated. Interventions to address sociostructural factors that impact elders' settings, increase their vulnerability, and diminish their ability to realize human rights can contribute to an improvement in their condition and a reduction in abuse and rights violations in the long-term.  相似文献   
63.
Monica Boyd 《Demography》1976,13(1):83-104
This paper discusses recent migration to North America with reference to the 1962 and 1967 Canadian immigration regulations and the 1965 United States Immigration and Nationality Act. Despite the similar emphasis on manpower and kinship criteria as the basis for the admission of immigrants, differences between Canada and the United States exist with respect to the importance of immigration for the respective economies, the organization of immigration, the formal regulations, and the size and composition of migrant streams. After an examination of the volume, origin, and occupational composition of immigration to Canada and the United States, flows between the two countries are studied. The paper concludes with a scrutiny of changes in immigration regulations which are pending in both countries.  相似文献   
64.
65.
Studies in the literature have revealed that a speaker’s co-speech gestures favor the construction of a complete and articulated mental model of the discourse by the listener; moreover, from the literature on co-speech gestures we know that they help the speaker to organize the stream of thought. Given these data, we hypothesized that a person who listens to a discourse accompanied by gestures would produce fewer co-speech gestures in recollecting the discourse compared to a person who listens to a discourse not accompanied by gestures. The analysis of the co-speech gestures produced by the participants in two experiments while recollecting the content of a discourse confirmed our predictions.  相似文献   
66.
Prominent explanations of the overrepresentation of Black Americans in criminal justice statistics focus on the effects of neighborhood concentrated disadvantage, racial isolation, and social disorganization. We suggest that perceived personal discrimination is an important but frequently neglected complement to these factors. We test this hypothesis with longitudinal data on involvement in general and violent juvenile delinquency in a sample of Black youth from a variety of communities in 2 states. We examine the direct effects of concentrated disadvantage and racial isolation and the direct and mediating effects of social organization, support for violence, and personal discrimination. Consistent with our hypothesis, perceived personal discrimination has notable direct effects on both general and violent delinquency and is an important mediator between neighborhood structural conditions and offending; moreover, its effects exceed those associated with neighborhood conditions.  相似文献   
67.
Nine‐month‐old infants were presented with an engaging and challenging task of visually tracking and reaching for a rolling ball that disappeared and reappeared from behind an occluder. On some trials, the infant observed the experimenter place a barrier on the ball's track; the barrier remained partially visible above the occluder throughout the remainder of the trial. When the task involved only predictive tracking, infants' anticipatory gaze shifts were faster when no barrier was present. When the task involved both tracking and reaching, there were more reaches when no barrier was present. If the infant reached, the timing and extension of the reach and the accompanying gaze shift did not differ with regard to the barrier. Because catching the ball was quite difficult for these infants, task demands interfered with the integration of visual information and visuospatial reasoning about the barrier with the reaching action.  相似文献   
68.
In the quest to model various phenomena, the foundational importance of parameter identifiability to sound statistical modeling may be less well appreciated than goodness of fit. Identifiability concerns the quality of objective information in data to facilitate estimation of a parameter, while nonidentifiability means there are parameters in a model about which the data provide little or no information. In purely empirical models where parsimonious good fit is the chief concern, nonidentifiability (or parameter redundancy) implies overparameterization of the model. In contrast, nonidentifiability implies underinformativeness of available data in mechanistically derived models where parameters are interpreted as having strong practical meaning. This study explores illustrative examples of structural nonidentifiability and its implications using mechanistically derived models (for repeated presence/absence analyses and dose–response of Escherichia coli O157:H7 and norovirus) drawn from quantitative microbial risk assessment. Following algebraic proof of nonidentifiability in these examples, profile likelihood analysis and Bayesian Markov Chain Monte Carlo with uniform priors are illustrated as tools to help detect model parameters that are not strongly identifiable. It is shown that identifiability should be considered during experimental design and ethics approval to ensure generated data can yield strong objective information about all mechanistic parameters of interest. When Bayesian methods are applied to a nonidentifiable model, the subjective prior effectively fabricates information about any parameters about which the data carry no objective information. Finally, structural nonidentifiability can lead to spurious models that fit data well but can yield severely flawed inferences and predictions when they are interpreted or used inappropriately.  相似文献   
69.
To date, relatively little is known about the prosocial values of adolescents. Research has shown that females attach more importance to certain prosocial values than males do in late adolescence but has not considered whether this gender difference is evident across stages of adolescence and whether it varies by race. We examine values that focus on doing things for others, using data from a nationwide survey of 12- to 17-year-olds. We find that girls place more importance on these prosocial values than boys at younger ages. However, we also find important patterns in this gender difference across racial groups as well as across age. White boys appear to attach less importance to prosocial values than other race and gender groups. Furthermore, the gender gap in prosocial values is larger at older ages, with older adolescent boys placing less importance on prosocial values than younger ones.  相似文献   
70.
The paper draws on resource orchestration theory to investigate whether and how performance management (PM) practices interact with human resource management (HRM) practices in organisations as well as how this interaction affects firm performance. The proposed theoretical model was tested through a survey of 192 UK firms using Partial Least Squares approach for structural equations modelling. The findings show that the effect of PM practices on firm performance is better explained when the interaction between these practices and other organisational practices is considered. In particular, we examine the extent to which the interaction between PM practices and commitment-based HRM practices affects performance. We find that when HRM practices and PM practices are misaligned, their effect on performance can be negative. This is the first paper in the PM literature that establishes the relationship between PM and HRM practices in organisations and demonstrates the effect of this relationship on firm performance.  相似文献   
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