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21.
Information about the pornography-viewing habits of urban, low-income youth of color in the United States is lacking. This study was designed to answer the following using a sample of 16- to 18-year-old urban-residing, low-income Black or Hispanic youth: (1) What types of pornography do youth report watching; where and for what purpose? (2) Do youth feel that pornography exposure has an impact on their own sexual behaviors? and (3) How do parents react to their pornography use? The following themes emerged from interviews with 23 youth: (1) Youth primarily reported watching pornography that featured one-on-one sexual intercourse but also reported having seen extreme pornography (e.g., public humiliation, incest); (2) youth reported watching pornography on home computers or smartphones, and that pornography was frequently watched in school; (3) youth reported watching for entertainment, for sexual stimulation, instructional purposes, and to alleviate boredom; many copied what they saw in pornography during their own sexual encounters; (4) pressure to make or to imitate pornography was an element of some unhealthy dating relationships; and (5) parents were generally described as unsupportive of youth's use of pornography but underequipped to discuss it. Approximately one-fifth expressed a preference for pornography featuring actors of their same race/ethnicity.  相似文献   
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Clinicians and researchers alike have pointed to the considerable variation in trauma responses among women who have been raped. This qualitative study attempts to enhance the understanding of strengths and vulnerabilities in women who have been sexually assaulted and factors which influence their recovery. The results of the study suggest that there is an association between a woman's post-traumatic stress response to rape and her pre-existing perceptions of self and other. Women with positive early life experiences were able to mobilize adaptive coping mechanisms and thereby diminish the long-term impact of the sexual assault experience. In contrast, women with disruptive or traumatic early life experiences appeared to have negative views of self and other reinforced, which subsequently interfered with their ability to activate adaptive coping mechanisms. Implications of these findings for the development of treatment programs are discussed.  相似文献   
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This paper describes combined maximum likelihood estimation of treatment effects and variance components in a linear mixed model. Estimates are obtained by a simple modification of iterative weighted least squares. The method is illustrated using plating efficiencies of Solanum and Lycopersicon species.  相似文献   
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This article analyses the health care system reform process in Europe based on the concept of privatization. This notion is understood from two perspectives. First, privatization may concern the health care financing or the provision of health services. Second, privatization can be “imposed” on individuals or be “internalized” and then introduced by individuals (patients and doctors). So we emphasize the diversity that privatization can assume. We classify privatization mechanisms used by different countries and identify which of the perspectives presented are more common in 14 European Union countries since the 1980s. The article shows that even if privatization processes are widespread, they assume different patterns in each country.  相似文献   
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The belief that ‘the stranger’ (outsider, disinterested third party) sees things more clearly, i.e. is more “objective,” is seen to be a corner-stone of folk wisdom; underlying Western judicial thought and concepts of objectivity in the social sciences. The author raises the dilemma that both positivistic and humanistic sociologists accept this belief—suggesting 1) that it is a residue of positivism and a quest for certain knowledge, or 2) the possibility that ‘the stranger’ does gain deeper insight into group life than members. The paper examines the concept of the stranger, considering the aura of charisma that seems to have been attached to it in ordinary discourse as well as within the sociological dialogue. Two types of strangers are described: outsiders and enemies within. Finally, an attempt is made to examine the testimony of prominant strangers as they describe their marginal status and speculate on the ways that status has made them unusually perceptive observers of social phenomena.  相似文献   
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The information available to private agents determines the effectiveness of various types of monetary policy. In an economy in which private agents have differential information sets, the ranking of three classes of monetary policy rules critically depends on the specification of agents' information sets. A price rule, for example, minimizes the variance of output around its full information level when agents observe both the interest rate and money stock. More generally, if all three monetary policy variables (the money stock, the price level and the interest rate) are contemporaneously observed, the policy ranking is indeterminate.  相似文献   
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We investigate risk attitudes when the underlying domain of payoffs is finite and the payoffs are, in general, not numerical. In such cases, the traditional notions of absolute risk attitudes, that are designed for convex domains of numerical payoffs, are not applicable. We introduce comparative notions of weak and strong risk attitudes that remain applicable. We examine how they are characterized within the rank-dependent utility model, thus including expected utility as a special case. In particular, we characterize strong comparative risk aversion under rank-dependent utility. This is our main result. From this and other findings, we draw two novel conclusions. First, under expected utility, weak and strong comparative risk aversion are characterized by the same condition over finite domains. By contrast, such is not the case under non-expected utility. Second, under expected utility, weak (respectively: strong) comparative risk aversion is characterized by the same condition when the utility functions have finite range and when they have convex range (alternatively, when the payoffs are numerical and their domain is finite or convex, respectively). By contrast, such is not the case under non-expected utility. Thus, considering comparative risk aversion over finite domains leads to a better understanding of the divide between expected and non-expected utility, more generally, the structural properties of the main models of decision-making under risk.

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