全文获取类型
收费全文 | 7774篇 |
免费 | 314篇 |
专业分类
管理学 | 1068篇 |
民族学 | 72篇 |
人才学 | 2篇 |
人口学 | 764篇 |
丛书文集 | 57篇 |
理论方法论 | 889篇 |
综合类 | 69篇 |
社会学 | 3881篇 |
统计学 | 1286篇 |
出版年
2023年 | 69篇 |
2022年 | 27篇 |
2021年 | 84篇 |
2020年 | 192篇 |
2019年 | 261篇 |
2018年 | 274篇 |
2017年 | 337篇 |
2016年 | 286篇 |
2015年 | 212篇 |
2014年 | 227篇 |
2013年 | 1436篇 |
2012年 | 290篇 |
2011年 | 292篇 |
2010年 | 237篇 |
2009年 | 200篇 |
2008年 | 240篇 |
2007年 | 238篇 |
2006年 | 206篇 |
2005年 | 199篇 |
2004年 | 191篇 |
2003年 | 182篇 |
2002年 | 196篇 |
2001年 | 147篇 |
2000年 | 132篇 |
1999年 | 123篇 |
1998年 | 102篇 |
1997年 | 96篇 |
1996年 | 87篇 |
1995年 | 99篇 |
1994年 | 103篇 |
1993年 | 92篇 |
1992年 | 94篇 |
1991年 | 89篇 |
1990年 | 62篇 |
1989年 | 64篇 |
1988年 | 80篇 |
1987年 | 73篇 |
1986年 | 40篇 |
1985年 | 65篇 |
1984年 | 66篇 |
1983年 | 76篇 |
1982年 | 47篇 |
1981年 | 56篇 |
1980年 | 47篇 |
1979年 | 51篇 |
1978年 | 49篇 |
1977年 | 37篇 |
1976年 | 47篇 |
1975年 | 39篇 |
1974年 | 31篇 |
排序方式: 共有8088条查询结果,搜索用时 328 毫秒
611.
James R. Hillard M.D. Cherie L. Kitchell L.C.S.W. U. G. Turner III M.D. Richard P. Keeling M.D. Rebecca F. Shank M.Ed. 《Journal of American college health : J of ACH》2013,61(3):112-117
Abstract Genital herpes virus infection is an important target for health education efforts because of its apparently rising incidence in the college student population and because it can have potentially serious psychological as well as medical consequences. In order to better understand the health education and counseling needs of students, the present study surveyed knowledge and attitudes about genital herpes of 190 university students using a gynecology clinic and of 161 students using a general medical clinic. The students were found to have a high degree of familiarity with the disease, its cause, and mode of transmission, but tended to view the consequences of the disease as more severe than is actually warranted by the common medical complications. There was some degree of misinformation about prevention and treatment of the disease and some negative attitudes about patients suffering from it, but the survey respondents endorsed a high level of responsible behavior with regard to the disease and expressed some optimism about the possibility of adapting to it. These findings suggest specific misconceptions about genital herpes that might be amenable to a mass education approach. They also suggest the need for a counseling program that centers around reasonable reassurance and appropriately positive psychological and medical management for newly diagnosed patients. 相似文献
612.
Few publications exist on the reactions of children and adolescents to the serious illness of their therapist. This paper reviews the literature on the responses of adult patient’s and presents three vignettes of adolescents who were in treatment when their therapist was diagnosed with cancer. We discuss some of the theoretical and clinical issues these cases present and conclude that openly sharing an appropriate amount of information with the adolescents appears to further rather than impede the therapeutic process. 相似文献
613.
This article offers an accounting‐based framework for evaluating the efficiency of nonprofit organizations using four factors. Separately, these factors reflect (1) the proportion of revenues actually used in the current year, (2) the proportion of the expenditures allocated to programs, (3) the units of output produced from that spending, and (4) the value of the units produced, expressed in terms of an index value. Combined, these four factors measure the value of units produced per dollar of revenue received, an accounting measure of overall efficiency. Using this framework provides insight into both the appropriateness and the limitations of employing solely financial measures to judge nonprofit organizations and also identifies conceptual areas absent from currently available evaluation tools. 相似文献
614.
James A. Craft 《Journal of Labor Research》1990,11(2):145-160
In recent years, the labor movement has expressed interest in using the community as a source of union power in dealing with
employers. This paper explores labor’s historical relationship with the community, examines the emphasis on more effective
uses of the community in core union activities, identifies the communities with which labor aligns itself in coalitions, and
discusses the strategies employed to form alliances with community groups. Finally, an analysis of some of the key barriers
and limitations that affect prospects of the formation and effectiveness of union-community coalitions is presented.
The author acknowledges and is grateful for the research assistance of Trudy Labovitz and Ellen Hufnagel. Also, appreciation
is expressed to the following persons for valuable comments on an earlier draft: Roger Ahlbrandt, Jr., Robert Atkin, Paul
Clark, Donald McPherson, Robert Perloff, Vida Scarpello, and Gerald Schoenfeld. 相似文献
615.
616.
The ratio of a country's foreign trade (i.e., exports plus imports) to its GNP has a known tendency to decrease with country size. Previous studies have used a single year's data; but trade fluctuates greatly from year to year. This paper makes available a compilation of 1953–1972 export/GNP and import/GNP figures for 110 countries. The average import/GNP figure is found to correlate strongly with population size; the simple expression, Imports/GNP = 40 , applies, within a factor of 2, in 94% of cases. No correlation with development level can be seen. The United States data throughout its history (1799–1972) follow the same inverse cube root pattern, but with a constant of 20 instead of 40. Correlation is much poorer in the case of export/GNP ration. Export and import figures are only marginally correlated to each other. 相似文献
617.
This paper presents influence diagnostics for simultaneous equations models. It proposes residuals, leverage and other influence measures. A missing data method is adopted to minimize the masking effect due to case deletions. The assessment of local influence is also considered. The paper shows how to evaluate the effects that perturbations to the endogenous variables, predetermined variables and case weights may have on the parameter estimates. The diagnostics are illustrated with two examples. 相似文献
618.
This paper studies the implementation of the coupling from the past (CFTP) method of Propp and Wilson (1996) in the set-up of two and three component mixtures with known components and unknown weights. We show that monotonicity structures can be exhibited in both cases, but that CFTP can still be costly for three component mixtures. We conclude with a simulation experiment exhibiting an almost perfect sampling scheme where we only consider a subset of the exhaustive set of starting values. 相似文献
619.
Even before the 1996 overhaul of the U.S. welfare system, a number of states had ended the practice of paying extra benefits
to families who have additional children while receiving welfare. Proponents believe that this reform can reduce births to
recipients, however many worry that it may encourage women to obtain abortions. Using a sample of unmarried AFDC recipients
from the NLSY, we estimate a bivariate probit model of pregnancy and, conditional on becoming pregnant, the probability of
abortion. Our results lend some support for the proposition that reducing incremental AFDC benefits will decrease pregnancies
without increasing abortions.
Received: 16 April 1998/Accepted: 11 March 1999 相似文献
620.
The primary purpose of this study was to contrast the life satisfaction of midlife empty-nest and childless individuals. Seventy-two men and women reported on their satisfaction with 11 areas of life as well as with regard to children. Empty-nest individuals were more satisfied than childless persons with regard to their decisions regarding children; however, the childless individuals were not unhappy with their decisions. Empty-nest individuals were also more positive than childless individuals about contact with children. There were no differences between the two groups with regard to areas of life satisfaction not related to children; nor were there significant gender differences in life satisfaction. The results were discussed in relation to both theory and data concerning midlife satisfaction and adjustment.SMS AssociatesThe research was completed by James E. Bell in partial fulfillment of the requirement for the masters of counseling degree at Arizona State University. 相似文献