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61.
The authors sought to determine whether a greater academic incentive would improve the effectiveness and student adherence to a 12-week voluntary exercise program designed to decrease students' percentage of body fat. They randomly assigned 210 students to 1 of 2 groups with different academic reward structures. The group with the greater reward structure showed better exercise adherence and lost more body fat than those without the additional incentive. These findings suggest that an academic incentive can increase overall student adherence to a voluntary exercise program and can boost the effectiveness of the program in a university environment. The findings also have potential implications for on-campus promotion of physical activity. 相似文献
62.
Based upon research in an alcoholism treatment organization, the study explores the impact of interdisciplinary team treatment on organizational participants and structure. The findings suggest that alternate organizational arrangements are necessary for organizations which use the team method. The implications of team treatment for professionals were confounded because of power relationships within the organization. Role bargaining between professionals was observed to be virtually non-existent because of the dominance of a single discipline. A surprising finding was the extent to which supervisory personnel were disadvantaged in the study. Caution is suggested for those organizations most likely to adopt the team method, large public health organizations. 相似文献
63.
Jon M. Shepard 《The Sociological quarterly》1972,13(2):161-173
A theoretical framework is tested predicting that the lack of perceived status recognition within a status structure promotes social psychological withdrawal from that status structure. Scales of Powerlessness, Meaninglessness, and Normlessness were used as independent variables, representing aspects of the work status structure. Self-Evaluative Involvement in work and Instrumental Work Orientation scales were employed as two indicators of social psychological withdrawal from the work role. Some empirical support for the theoretical framework is presented. 相似文献
64.
Firearms play an important role in lethal domestic violence incidents. The authors review state laws regarding two policies to separate batterers from firearms: laws authorizing police to remove firearms when responding to a domestic violence complaint ("police gun removal laws") and laws authorizing courts to order guns removed from batterers through a protective order ("court-ordered removal laws"). As of April 2004, 18 states had police gun removal laws; 16 states had court-ordered removal laws. The authors examine relevant characteristics of the laws and recommend that these laws be mandatory, apply to all guns and ammunition possessed by an abuser, and include clear procedures to enhance implementation. 相似文献
65.
In this article, we delineate the qualitative phase of a mixed-method research study focused on understanding the relationship between Clinical Members of the American Association for Marriage and Family Therapy (MFT) and complementary alternative medicine (CAM). Based on an analysis of the data derived from telephone interviews with 54 respondents, we describe four themes: definitional issues, depth of awareness of CAM, fit with MFT, and ethical considerations. Our discussion focuses on the findings of this phase, considerations from the quantitative phase, and reflections on the research study as a whole. While acknowledging the limitations of the study, we conclude that the growing awareness of and involvement with CAM approaches and practitioners among MFTs suggest a need for further education for both professionals and clients. We also note the importance of additional research support for the use of CAM practices. 相似文献
66.
One solution to the underutilization of workplace accommodations is to use teleconferencing technology to conduct remote assessments, effectively expanding the geographical area that experienced rehabilitation specialists can cover. However, such an effort requires a highly structured and comprehensive assessment protocol. This paper reports on the analysis of 53 existing assessments to develop a conceptual framework for assessment and the use of that framework to evaluate the applicability of 10 work-related assessment protocols for remote tele-assessment. While none of the 10 protocols were found to be sufficiently comprehensive for our purposes, the conceptual framework itself will serve as an important tool to structure a new comprehensive protocol that will be developed. Moreover, the framework can also be used by providers of workplace assessments to evaluate the suitability of any assessment protocol to meet the needs of any particular individual or workplace situation. 相似文献
67.
68.
The Dirichlet process prior allows flexible nonparametric mixture modeling. The number of mixture components is not specified
in advance and can grow as new data arrive. However, analyses based on the Dirichlet process prior are sensitive to the choice
of the parameters, including an infinite-dimensional distributional parameter G
0. Most previous applications have either fixed G
0 as a member of a parametric family or treated G
0 in a Bayesian fashion, using parametric prior specifications. In contrast, we have developed an adaptive nonparametric method
for constructing smooth estimates of G
0. We combine this method with a technique for estimating α, the other Dirichlet process parameter, that is inspired by an
existing characterization of its maximum-likelihood estimator. Together, these estimation procedures yield a flexible empirical
Bayes treatment of Dirichlet process mixtures. Such a treatment is useful in situations where smooth point estimates of G
0 are of intrinsic interest, or where the structure of G
0 cannot be conveniently modeled with the usual parametric prior families. Analysis of simulated and real-world datasets illustrates
the robustness of this approach. 相似文献
69.
Jon Hudson 《Journal of Community Practice》2019,27(3-4):487-502
ABSTRACTThe article presents a study of how U.S. social work educators are including discussion, exercises, readings, and other pedagogical approaches to the natural environment into their classrooms. The findings are part of a larger, naturalistic study that gathered data using a semi-structured interview format. The three major themes that emerged were human behavior theory, ecological and environmental justice, and environmental sustainability. The participants are introducing issues of the natural environment using varied pedagogical techniques including readings, in-class discussions and exercises, service learning, assignments, including written and practical work, research, self-awareness exercises, and class facilitation. Questions for further investigation of social work and the natural environment are included. 相似文献
70.
Gray George M. Allen Jon C. Burmaster David E. Gage Stuart H. Hammitt James K. Kaplan Stanley Keeney Ralph L. Morse Joseph G. North D. Warner Nyrop Jan P. Stahevitch Alina Williams Richard 《Risk analysis》1998,18(6):773-780
The North American Free Trade Agreement (NAFTA) and the General Agreement on Tariffs and Trade (GATT) have focused attention on risk assessment of potential insect, weed, and animal pests and diseases of livestock. These risks have traditionally been addressed through quarantine protocols ranging from limits on the geographical areas from which a product may originate, postharvest disinfestation procedures like fumigation, and inspections at points of export and import, to outright bans. To ensure that plant and animal protection measures are not used as nontariff trade barriers, GATT and NAFTA require pest risk analysis (PRA) to support quarantine decisions. The increased emphasis on PRA has spurred multiple efforts at the national and international level to design frameworks for the conduct of these analyses. As approaches to pest risk analysis proliferate, and the importance of the analyses grows, concerns have arisen about the scientific and technical conduct of pest risk analysis. In January of 1997, the Harvard Center for Risk Analysis (HCRA) held an invitation-only workshop in Washington, D.C. to bring experts in risk analysis and pest characterization together to develop general principles for pest risk analysis. Workshop participants examined current frameworks for PRA, discussed strengths and weaknesses of the approaches, and formulated principles, based on years of experience with risk analysis in other setting and knowledge of the issues specific to analysis of pests. The principles developed highlight the both the similarities of pest risk analysis to other forms of risk analysis, and its unique attributes. 相似文献