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921.
We consider a 2r factorial experiment with at least two replicates. Our aim is to find a confidence interval for θ, a specified linear combination of the regression parameters (for the model written as a regression, with factor levels coded as ?1 and 1). We suppose that preliminary hypothesis tests are carried out sequentially, beginning with the rth‐order interaction. After these preliminary hypothesis tests, a confidence interval for θ with nominal coverage 1 ?α is constructed under the assumption that the selected model had been given to us a priori. We describe a new efficient Monte Carlo method, which employs conditioning for variance reduction, for estimating the minimum coverage probability of the resulting confidence interval. The application of this method is demonstrated in the context of a 23 factorial experiment with two replicates and a particular contrast θ of interest. The preliminary hypothesis tests consist of the following two‐step procedure. We first test the null hypothesis that the third‐order interaction is zero against the alternative hypothesis that it is non‐zero. If this null hypothesis is accepted, we assume that this interaction is zero and proceed to the second step; otherwise, we stop. In the second step, for each of the second‐order interactions we test the null hypothesis that the interaction is zero against the alternative hypothesis that it is non‐zero. If this null hypothesis is accepted, we assume that this interaction is zero. The resulting confidence interval, with nominal coverage probability 0.95, has a minimum coverage probability that is, to a good approximation, 0.464. This shows that this confidence interval is completely inadequate. 相似文献
922.
Paul McIntosh 《Disability & Society》2002,17(1):65-79
The work of Michel Foucault has been widely used in the social sciences to explore relationships of power and knowledge. This paper utilises Foucault's methods in an initial formation of discourse in the problem of care of people with learning disabilities in the twentieth century, and focuses on the problematisation of people with learning disabilities and their care needs. Little has been published regarding the contingencies of past and current practices in any form of systematic way within learning disability services. Neither has literature on disablism been utilised to support these contingencies. In order to establish a basis for the establishment of this discussion, the work and methodologies of Foucault have been utilised to develop ideas and a textual framework, and links are made with disablist literature. This paper is split into two halves; first classification and support structures, and secondly an architexture of learning disability services. 相似文献
923.
Michelle Haring Paul L. Hewitt Gordon L. Flett 《Journal of marriage and the family》2003,65(1):143-158
The present study examined the associations among perfectionism, marital coping, and marital functioning in a community sample of 76 couples. A theoretical model was tested in which maladaptive coping mediates the relationship between trait perfectionism and poorer marital functioning. As predicted, one of the interpersonal dimensions of perfectionism, socially prescribed perfectionism, was associated with maladaptive marital coping and poorer marital adjustment for both the self and the partner, even after controlling for depression and neuroticism. Finally, the use of negative coping strategies mediated the relationship between socially prescribed perfectionism and poorer marital functioning for both the self and the partner. Overall, this study highlights the importance of spouse‐specific forms of perfectionism in marital adjustment. 相似文献
924.
Paul A. Taylor 《Information, Communication & Society》2006,9(5):553-571
This paper argues that Scott Lash's Critique of Information is one of the most important works of the new informational order: the Order. However, despite its comprehensive and insightful analysis, it illustrates a common trend amongst theorists whereby the inherent pessimism of their arguments' logic tends to be replaced by an unwarranted optimism regarding their conclusions. This criticism is applied to Lash's critique, which is further supplemented by a rejection of Lash's argument that the transcendent perspective necessary for critical theory has been supplanted in the information age by an immanent all-at-onceness. The much more negative perceptions of the social and cultural effects of the Order to be found within literature and cultural history are defended as valuable sources of critical perspectives that may still help to aid theory as it struggles to keep up with the Order's discombobulating flows. 相似文献
925.
In this paper we use a penalized likelihood approach to image warping in the context of discrimination and averaging. The choice of average image is formulated statistically by minimizing a penalized likelihood, where the likelihood measures the similarity between images after warping and the penalty is a measure of distortion of a warping. The notions of measures of similarity are given in terms of normalized image information. The measures of distortion are landmark based. Thus we use a combination of landmark and normalized image information. The average defined in the paper is also extended by allowing random perturbation of the landmarks. This strategy improves averages for discrimination purposes. We give here real applications from medical and biological areas. 相似文献
926.
Disadvantage and Discrimination Compounded: the experience of Pakistani and Bangladeshi parents of disabled children in the UK 总被引:3,自引:2,他引:1
Qulsom Fazil Paul Bywaters Zoebia Ali Louise Wallace Gurnam Singh 《Disability & Society》2002,17(3):237-253
This paper discusses a qualitative and quantitative study of the circumstances of 20 Pakistani and Bangladeshi families with one or more severely disabled children living in Birmingham, England. Parents and other adult carers were interviewed using a combination of structured questionnaires and a semi-structured interview schedule focusing on the families' material circumstances, their use of formal services, informal care arrangements, and aspects of the parents' social and psychological well-being. The study suggests that previous national surveys of disabled families may have under-estimated the extent of material disadvantage, while it confirms that health and social care professionals should not assume that Pakistani and Bangladeshi parents have recourse to high levels of extended family support. The combination of disadvantaged circumstances and difficulties in securing access to appropriate services, which are found for the majority of families with a disabled child, was particularly acute for these ethnic minority families, suggesting the additional dimension of institutional racism. 相似文献
927.
We discuss the analysis of mark-recapture data when the aim is to quantify density dependence between survival rate and abundance. We describe an analysis for a random effects model that includes a linear relationship between abundance and survival using an errors-in-variables regression estimator with analytical adjustment for approximate bias. The analysis is illustrated using data from short-tailed shearwaters banded for 48 consecutive years at Fisher Island, Tasmania, and Hutton's shearwater banded at Kaikoura, New Zealand for nine consecutive years. The Fisher Island data provided no evidence of a density dependence relationship between abundance and survival, and confidence interval widths rule out anything but small density dependent effects. The Hutton's shearwater data were equivocal with the analysis unable to rule out anything but a very strong density dependent relationship between survival and abundance. 相似文献
928.
via e-mail: paul.garrett{at}nottingham.ac.uk Summary Harry Ferguson (2001), referring largely to Britain and Ireland,maintains that social work should be committed to a newway of thinking which is rooted in life politics.This idea, uncritically grounded in the ideas of Anthony Giddensand Ulrich Beck, fails to convince because: the assertion thatwe are now living in a post traditional orderis undermined by the resilience of key historical forms of regulationand control which continue, for example, to limit women's choicein the sphere of reproductive rights; identified changes inthe texture of family relations are not evidenced by research;the life politics perspective places too greatan emphasis on human agency, choice and volition and not enoughon structural constraint; the structural location of the lifepolitics proponents is not interrogated; the analysisis too stridently dismissive of the idea that emancipatorypolitics should be social work's primary orientation. 相似文献
929.
Kimberly?S.?MilochEmail author Paul?M.?Pedersen Michael?K.?Smucker Warren?A.?Whisenant 《Public Organization Review》2005,5(3):219-232
The purpose of this study was to provide an analysis of the current state of women journalists within the sports departments
at newspapers across the United States. This investigation involved a determination of their demographic make-up, job status
within the sports department, rationale for entering the field, and advice for younger women preparing to follow in their
footsteps. The findings suggest that although the large majority of women have faced discrimination in the sport media, they
believe improvements have been made towards equity. The majority of respondents noted that they were happy with the assignments
they had been given. Subjects did, however, feel that they were assigned to cover females more than their male counterparts,
and some responses regarding dissatisfaction with their positions was also noted. 相似文献
930.
A textbook hypothesis about divorce is that heterogamous marriages are more likely to end in divorce than homogamous marriages. We analyse vital statistics on the population of the Netherlands, which provide a unique and powerful opportunity to test this hypothesis. All marriages formed between 1974 and 1984 (nearly 1 million marriages) are traced in the divorce records and multivariate logistic regression models are used to analyse the effects on divorce of heterogamy in religion and national origin. Our analyses confirm the hypothesis for marriages that cross the Protestant-Catholic or the Jewish-Gentile boundary. Heterogamy effects are weaker for marriages involving Protestants or unaffiliated persons. Marriages between Dutch and other nationalities have a higher risk of divorce, the more so the greater the cultural differences between the two groups. Overall, the evidence supports the view that, in the Netherlands, new group boundaries are more difficult to cross than old group boundaries. 相似文献