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101.
Research has documented a relation between parents' ethnic socialization and youth's ethnic identity, yet there has been little research examining the transmission of cultural values from parents to their children through ethnic socialization and ethnic identity. This study examines a prospective model in which mothers' and fathers' Mexican American values and ethnic socialization efforts are linked to their children's ethnic identity and Mexican American values, in a sample of 750 families (including 467 two-parent families) from an ongoing longitudinal study of Mexican American families (Roosa, Liu, Torres, Gonzales, Knight, & Saenz, 2008). Findings indicated that the socialization of Mexican American values was primarily a function of mothers' Mexican American values and ethnic socialization, and that mothers' Mexican American values were longitudinally related to children's Mexican American values. Finally, these associations were consistent across gender and nativity groups.  相似文献   
102.
In efforts to reform the child welfare system, agency leaders must involve staff at all levels; yet, little research has been done to determine which organizational factors encourage or inhibit staff engagement. Employees from an urban child welfare agency were invited to complete a survey regarding organizational effectiveness and its influence on reform efforts. The results show how these findings can be used by managers to improve practice, specifically through increased information sharing with stakeholders.  相似文献   
103.
The development of a strong ethnic identity has been considered to relate to psychological well-being. The aim of this article is to critically review the literature relating to ethnic identity and positive outcomes in looked after and adopted children from ethnic minority groups. A literature search of SCOPUS, PsycINFO, and Medline databases from 2000 to 2010 was conducted to identify qualifying published studies. Studies that pertained to ethnic identity development in children in relation to positive outcomes, adjustment, self-esteem, and psychological well-being were reviewed. Overall, evidence from the studies was mixed, with strong ethnic identity not always found to be indicative of improved psychological adjustment. Methodological limitations of the reviewed studies are discussed, and clinical implications and recommendations for future research are presented.  相似文献   
104.
Recreation Demand Choices and Revealed Values of Leisure Time   总被引:3,自引:0,他引:3  
An approach to jointly estimating an endogenous marginal value of time function and a recreation budget share equation is developed. The specification requirements for the marginal value of time function, to ensure consistency with the maintained hypothesis of two binding constraints on choice, are articulated. The estimating model consistent with these requirements that nests several conventional treatments of the marginal value of time is highly significant. The general endogenous marginal value of time model outperforms other approaches and shows a more complex relationship between the marginal value of time and the individual's wage than has been used in previous work. (JEL J22 , Q26 )  相似文献   
105.
Previous research has shown that 6‐ to 9‐month‐old infants detect role reversals in dyadic interaction involving 2‐argument relations. These studies extend this line of research to a 3‐argument structure: An agent gives an object to a recipient. We conducted 4 experiments in a novelty‐preference paradigm. Infants were habituated to videotaped sequences of a puppet giving a flower to another puppet. In the test phase, the puppets' spatial positions were switched, and infants alternately saw role‐reversal and direction‐reversal trials. Results indicate that 10.5‐ and 12‐month‐olds but not 9‐month‐olds selectively encoded the change of action role (agent‐recipient) over a change in the spatiotemporal properties of the interaction and that action role encoding was specific to intentional relations in a 3‐argument structure. Thus, infants at the end of their 1st year seem to be sensitive to movement cues that specify intentional relations between an agent and a recipient.  相似文献   
106.
This paper proposes how to select a methodology to target multidimensionally poor households, and how to update that targeting exercise periodically. We present this methodology in the context of discussions regarding the selection of a targeting methodology in India. In 1992, 1997, and 2002 the Indian government identified households that are below the poverty line (BPL) and in updating the 2002 methodology, alternative methods have been proposed and vigorously debated. A fourth BPL method was published and a corresponding Socio Economic Caste Census (SECC), implemented. Using the third National Family Health Survey (NFHS-3), this paper illustrates how a BPL targeting method using SECC variables might be calibrated to a multidimensional poverty measure. This paper compares the fit between a benchmark measure of multidimensional poverty and several plausible targeting methods to determine which method(s) approximate it—as well as related measures—most closely. We find a ten-item binary scoring method, which uses variables already available in the SECC questionnaire, provides a strong proxy. The emphasis of this paper is to illustrate how a particular targeting method can be justified, rather than to advocate any particular solution.  相似文献   
107.
Many wavelet shrinkage methods assume that the data are observed on an equally spaced grid of length of the form 2J for some J. These methods require serious modification or preprocessed data to cope with irregularly spaced data. The lifting scheme is a recent mathematical innovation that obtains a multiscale analysis for irregularly spaced data. A key lifting component is the “predict” step where a prediction of a data point is made. The residual from the prediction is stored and can be thought of as a wavelet coefficient. This article exploits the flexibility of lifting by adaptively choosing the kind of prediction according to a criterion. In this way the smoothness of the underlying ‘wavelet’ can be adapted to the local properties of the function. Multiple observations at a point can readily be handled by lifting through a suitable choice of prediction. We adapt existing shrinkage rules to work with our adaptive lifting methods. We use simulation to demonstrate the improved sparsity of our techniques and improved regression performance when compared to both wavelet and non-wavelet methods suitable for irregular data. We also exhibit the benefits of our adaptive lifting on the real inductance plethysmography and motorcycle data.  相似文献   
108.
Andrew Knight 《Risk analysis》2007,27(6):1553-1563
Data from a regional Southwest telephone survey in the United States (N= 432) were used to examine the intervening effects of knowledge, morality, trust, and benefits on support for animal and plant biotechnology applications. Results showed that perceptions of agricultural biotechnologies varied by the two applications-animals and plants. Respondents reported higher opposition to the genetic modification of animals, which is consistent with prior research. Results also indicated that morality and perceived benefits directly affected support for both animal and plant applications, but trust and knowledge only had indirect effects. Morality and perceived benefits accounted for most of the variance explained among the intervening variables. The effects of trust were mediated through perceived benefits. The effects of knowledge on support were mediated primarily through trust. The influence of sociodemographic and consumer behavior variables varied by application. Results lend support to several theoretical notions. First, the significance of perceived benefits supports that there is an inverse relationship between benefits and risks. Second, moral objections may outweigh perceived benefits for specific applications, and the genetic modification of animals is deemed to be more morally unacceptable than the genetic modification of plants. These findings demonstrate the need to understand more thoroughly the moral and ethical issues surrounding novel technologies. Third, this research supports the claim that trust is not a powerful predictor of perceptions of technological products, which is contrary to most risk perception research.  相似文献   
109.
This article reports on the results of two surveys that asked BSW and MSW students to evaluate the supervision provided by their field instructors at two points during their practicum. Students responded to a variety of questions pertaining to the supervisory assignments and activities of their field instructor. The author discusses the relationship between supervisory skills and students’ perceptions of enhanced learning. Early in the practicum, activities reported as most helpful to students were those that introduced them to the agency and clarified expectations of their performance. At the end of their experience, students perceived as most helpful those activities which helped them to be self-critical and to link classroom and field learning.  相似文献   
110.
The paper examines methodology and research priorities. It considers whether economists are asking the wrong questions and whether they are producing inadequate answers to questions. It examines the nature of imbalance in economists’ efforts ‐ drawing on e.g. the economics of racial discrimination, growth and distribution ‐ and the reasons for this imbalance. It concludes with an appeal for a wider approach to a topic or problem than most individual economists normally adopt: one which incorporates not only economic theory and statistical testing but also a deep knowledge of the facts, a study of relevant institutions, and ‐ where helpful ‐ a crossing of conventional disciplinary boundaries.  相似文献   
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