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71.
72.
Investment in information systems and technology is often justified as a necessary strategy for coping with the increased complexity and information needs of today/s manufacturing environments. However, the world class manufacturing paradigm suggests that increased complexity is not always necessary to meet the needs of markets and customers. Galbraith/s (1973, 1977) seminal information-processing model is applied to a manufacturing environment, supported by the world class manufacturing paradigm, to test the role of various information-processing alternatives for coping with increased environmental complexity. Moderated regression and multiple discriminant analysis are used to test hypotheses in a sample of 164 manufacturing plants. Environmental complexity was found to be related to manufacturing performance for each of the five dependent variables. This relationship was moderated by at least one information-processing alternative for each dependent variable, including self-contained tasks, lateral relations, and environmental management strategies for reducing manufacturing, supplier, and goal diversity. Investments in information systems and reduction of labor and customer diversity did not moderate this relationship. Practices that were found to be particularly effective in moderating this relationship included the use of multifunctional employees, communication of manufacturing strategy, coordination of decision making, product design simplicity, reduction of parts counts, supervisory interaction facilitation, recruiting and selection for flexible employees, JIT practices, blanket purchase orders, and strong customer relationships.  相似文献   
73.
Summary.  The paper is concerned with a problem of finding an optimum experimental design for discriminating between two rival multiresponse models. The criterion of optimality that we use is based on the sum of squares of deviations between the models and picks up the design points for which the divergence is maximum. An important part of our criterion is an additional vector of experimental conditions, which may affect the design. We give the necessary conditions for the design and the additional parameters of the experiment to be optimum, we present the algorithm for the numerical optimization procedure and we show the relevance of these methods to dynamic systems, especially to chemical kinetic models.  相似文献   
74.
The move from print to online journal publishing has allowed the proliferation of journal access programs aimed at poor countries. These programs offer access to online journals on very favorable terms to developing country institutions and readers and are based on the premise that developing world scientists can contribute significantly to ameliorating the conditions of life in their countries. The authors give a brief overview of the environment in which these programs emerged, discuss different orientations of the major programs, examine the case of the Health InterNetwork Access to Research Initiative (HINARI), consider why the World Health Organization (WHO) runs a journal access program for developing countries, and conclude with the accomplishments of HINARI.  相似文献   
75.
Marital terminations are life transitions that may lead to changes in diet, activity, and body weight. This investigation examined how marital status was associated with relative body weight, underweight, overweight, and obesity among men and women in the United States using cross-sectional nationally representative data from the 1992 HRS cohort age 51–61 and the 1993 AHEAD cohort age 70 and older. Results in the HRS cohort revealed that even when adjusting for demographic and behavioral variables, widowed women were significantly more likely to be obese than married women, while men who were never married, divorced, or separated were more likely to be underweight. Results in the AHEAD cohort showed few significant associations between marital status and weight for either men or women when demographics were controlled. Clear gender variations appeared to exist in how marriage is related to body weight among unmarried older adults, with widows in their 50s being obese and divorced/separated/never married men being underweight. However, marital status differences in weight were not present among much older adults of either gender. Jeffery Sobal is a asociologist who is an associate professor at the Division of Nutritional Sciences at Cornell University. He has studied food systems, food choice, and is currently examining social aspects of body weight and obesity, particularly marriage and body weight. Barbara S. Rauschenbach is a sociologist who is a research associate in the Division of Nutritional Sciences at Cornell University. She has studied food insecurity and food assistance, and is currently examining marital status and body weight.  相似文献   
76.
Medical case management of musculoskeletal injuries can be facilitated when objective testing of the physical demands of the job can be compared to the functional capabilities of the individual. When the job analysis is appropriately sectioned into the separate physical demands, the physician can use information about specific job demands to maximize the likelihood of a safe return to regular duties. The response in the physical abilities in the worker can then be again functionally evaluated, leading to increased confidence in the process.  相似文献   
77.
Information gathered from over 1000 adoptions in the fourth year of a prospective study of adoptions finds satisfaction levels to be quite high, with those families adopting through private agencies to feel best prepared and satisfied. Differences by adoption auspice are detailed and discussed.The senior authors are Co-Principal Investigators of the California Long-range Adoption Study. This research was supported by the Child Welfare Research Center, Family Welfare Research Group, University of California at Berkeley, through a grant from the Children's Bureau, Administration for Children and Families, Department of Health and Human Services. The authors wish to thank the families for their participation. Please address correspondence to Mary Berry at the Center for Child Welfare, UTA School of Social Work, P.O. Box 19129, Arlington, Texas 76019.  相似文献   
78.
Summary Emphasis throughout this paper has been placed on the importance of viewing black patients in their current social context. The positive impact of the Black Power movement has been observed in black patients who are involved in issues of black separatism and activism. Bennett's four stages of black process provide a means of identifying the position of individual blacks in terms of racial identity. Since relationships with whites are highly determined by the black patient's stage of black process, use of this conceptual frame work will assist the therapist in determining the indirect way in which black patients express racial issues.The author's experience has confirmed the existence and importance of two problem areas: the longer time needed to establish a therapeutic alliance in interracial work and the lack of knowledge of the black experience and culture in the white professional. The knowledge that additional time must be expended by both therapy partners must raise questions about the ethics of interracial practice and the need for more black mental health professionals. The second area of concern, the white professional's lack of knowledge, could be remedied. The fact that whites have not attempted to learn more about the black culture suggests the problem is a philosophical one. Liberal professionals are generally committed to the ideal of a truly integrated society where there are no differences among people. Black people appear to be telling us that they are different from whites here and now, and they like the difference.Supported by U.S.P.H.S. Grant # MH 15650 and MH 17728 from the National Institute of Mental Health, U.S. Department of Health, Education and Welfare  相似文献   
79.
Rainwater's assertion that blacks have low self-evaluations because they receive more negative evaluations from other blacks than whites receive from other whites is challenged here by reference to Heiss and Owens evidence that negative self evaluation among blacks is limited to work-related traits. Substantial support was found for our major hypotheses that, compared to whites, (1) blacks would report more negative evaluation of “most men” but not of “most women” (since the provider role is traditionally ascribed primarily to men), and (2) the more negative evaluation of “most men” by blacks would be limited to work-related traits.  相似文献   
80.
Where strength training has been used in conjunction with functional-task training in older people, not only have there been improvements in leg strength but also improved function has been measured (e.g., Skelton & McLaughlin, 1996). Many studies use participants from care homes rather than community dwellers. We investigated changes in leg power, balance, and functional mobility in community-dwelling sedentary men and women over 70 years of age (n = 6 for training group [TR]; n = 10 for control group [CN]). Progressive training took place over 24 weeks using seated and nonseated exercise. For TR, leg power increased 40%, from 108 +/- 40 to 141 +/- 53 W (p < .01); dynamic balance increased 48%, from 22.3 +/- 7.9 to 33.1 +/- 6.1 cm (p < .01; functional reach); and functional mobility increased 12%, from 7.46 +/- 1.32 to 6.54 +/- 1.41 s (p < .05; timed walk). CN showed no significant change. In conclusion, a community-based exercise program led to large improvements in leg-extensor power, dynamic balance, and functional mobility.  相似文献   
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