全文获取类型
收费全文 | 95476篇 |
免费 | 1979篇 |
国内免费 | 4篇 |
专业分类
管理学 | 12925篇 |
民族学 | 551篇 |
人才学 | 25篇 |
人口学 | 7639篇 |
丛书文集 | 542篇 |
教育普及 | 3篇 |
理论方法论 | 9617篇 |
现状及发展 | 2篇 |
综合类 | 2221篇 |
社会学 | 44841篇 |
统计学 | 19093篇 |
出版年
2023年 | 512篇 |
2021年 | 575篇 |
2020年 | 1526篇 |
2019年 | 2211篇 |
2018年 | 2178篇 |
2017年 | 3247篇 |
2016年 | 2464篇 |
2015年 | 2075篇 |
2014年 | 2641篇 |
2013年 | 18891篇 |
2012年 | 2579篇 |
2011年 | 2408篇 |
2010年 | 2066篇 |
2009年 | 2227篇 |
2008年 | 2126篇 |
2007年 | 1980篇 |
2006年 | 2169篇 |
2005年 | 2379篇 |
2004年 | 2234篇 |
2003年 | 1986篇 |
2002年 | 2085篇 |
2001年 | 2184篇 |
2000年 | 1986篇 |
1999年 | 1831篇 |
1998年 | 1572篇 |
1997年 | 1431篇 |
1996年 | 1385篇 |
1995年 | 1395篇 |
1994年 | 1356篇 |
1993年 | 1359篇 |
1992年 | 1377篇 |
1991年 | 1317篇 |
1990年 | 1283篇 |
1989年 | 1144篇 |
1988年 | 1224篇 |
1987年 | 1089篇 |
1986年 | 1006篇 |
1985年 | 1173篇 |
1984年 | 1225篇 |
1983年 | 1110篇 |
1982年 | 1003篇 |
1981年 | 902篇 |
1980年 | 853篇 |
1979年 | 948篇 |
1978年 | 820篇 |
1977年 | 727篇 |
1976年 | 687篇 |
1975年 | 665篇 |
1974年 | 557篇 |
1973年 | 479篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Michael A. Cavanaugh 《Sociological Forum》1986,1(2):251-283
Research on the traditionalist movement against abortion needs alignment with currents in historical sociology, the theory of social movements and the sociology of politics. The religious (specifically, Christian) basis of the right-to-life movement has attracted considerable attention in the literature. The movement is seen as a traditionalist bloc claiming to oppose secularization and return to customary restrictions. However the tradition in question appears to be a recent social construction. There is slim warrant in the actual traditions of Western religion for asserting a categorical right to life. As a result, the movement's ideology is best approached as the product of—rather than the antidote to—secularizing processes (including the demographic transition, discourse about rights, markets for symbolic entrepreneurs and the separation of church and state) and possibly as an unintended import from non-Western religion. Implications for traditionalism, the functions of religion, and the study of countermovements are explored. This case illustrates the value of attending to historical sequences and the external cultural environments of social movements. 相似文献
992.
Laban A. J. Ogallo 《Journal of applied statistics》1986,13(1):49-56
ARIMA (p, d, q) models were fitted to areal annual rainfall of two homogeneous regions in East Africa with rainfall records extending between the period 1922–80. The areal estimates of the regional rainfall were derived from the time series of the first eigenvector, which was significantly dominant at each of the two regions. The first eigenvector accounted for about 80% of the total rainfall variance in each region.
The class of ARIMA (p, d, q) models which best fitted the areal indices of relative wetness/dryness were the A R M A (3, 1) models. Tests of forecasting skill however indicated low skill in the forecasts given by these models. In all cases the models accounted for less than 50% of the total variance.
Spectral analysis of the indices time series indicated dominant quasi-periodic fluctuations around 2.2–2.8 years, 3–3.7 years, 5–6 years and 10–13 years. These spectral bands however accounted for very low proportion of the total rainfall variance. 相似文献
993.
A fact-gathering, experimental game proved to be an effective instrument in the needs assessment phase of an adolescent sexuality educational program aimed at low-income females. The game ("Family Few"), which covered the topics of menstruation and reproduction, was played by 35 Black, Hispanic, and white females aged 13-16 years recruited from medical and psychiatric clinics in Miami, Florida. The goals of the game were to elicit terminology used by participants, identify and correct misconceptions and misinformation, and determine if learning could occur. Although 57% of participants reported prior exposure to formal sex education, misinformation about the need for activity curtailment during menstruation and the importance of early pregnancy detection was widespread. Group members believed they needed to restrict activities involving physical exercise, sexual relations, water, and cold during menses and were not likely to seek medical or family consultation regarding a missed period until the end of the 1st trimester of pregnancy. Also evident was a need for accurate information on the side effects, risk factors, benefits, and effectiveness of contraceptive methods. The group responses enabled the sex educators to prepare a culturally responsive, developmentally oriented curriculum for further work with disadvantaged female adolescents. The group process was ranked highly on the Likert Scale by these teenagers as an enjoyable, useful means of information dissemination and problem solving. 相似文献
994.
The authors describe a project, begun in 1981, to locate, list, and annotate all the published work based substantially on the census enumerators' books for nineteenth-century censuses for England and Wales. The results are currently available in a computerized file, enabling a variety of searches by topic, geographical area, and type of population. Information is provided on using the data and the computerized bibliography. The authors note that, subsequently, data for censuses of Scotland and Ireland have been added. 相似文献
995.
996.
O'Neil JD 《Human organization》1986,45(2):119-128
This paper describes the major structural and historical dimensions of health ideology and praxis in the Canadian Arctic. It examines the problems that occur when primary care services exclude their clients from meaningful involvement in planning and administration. It argues that the structure of health services in northern Canada reflects an internal colonial political economy which is characteristic of most Fourth World situations. 相似文献
997.
"This paper seeks to (1) identify socioeconomic variables that are expected to generate fertility differentials; (2) hypothesize the direction and magnitude of the effect of each variable by reference to a demand-for-children model; and (3) test empirically the model using evidence from Costa Rica. The estimates are obtained from a ten-percent systematic random sample of all Costa Rican individual-family households. There are 15,924 families in the sample...." The authors specifically seek "to capture the effects of changing relative prices and available income and time constraints on parental preferences for children. Least-squares estimates show statistically significant relationships between household fertility and opportunity cost of time, parental education, occurrence of an extended family, medical care, household sanitation, economic sector of employment, and household stock of nonhuman capital." 相似文献
998.
Hernandez Cruz JE 《International migration (Geneva, Switzerland)》1986,24(2):397-409
Puerto Rican migration to the US has been a more or less continuous process since 1917. The perspective of viewing return migration as a circulation process suggests that there are entries, exits, and reintergration into the metropolitan labor market. This study explores the circulatory movements of Puerto Rican families, events that influence the adaptation process when returning to Puerto Rico, and cultural identity aspects. Data collected by means of 2 research instruments that were administered to the respondents simultaneously were used: 1) a life history matrix and 2) an open-ended questionnaire. These interviews outlined the principal problems of adaptation as mentioned by the circulating migrants. The most difficult problems to adjust to were economic and employment (58%), followed by social acceptance (23%), education (17%), and language (15%). Transportation, medical services, and recreational facilities were also problems mentioned as being significant. It is expected that a great majority of migrant laborers will go to live in immigrant residential locations in large US cities. It is also expected that these migrants will meet with certain value conflicts by living in urban ghettos. These families will have serious difficulties finding economic stability and will possibly consider migrating once again as an alternative to their social reality. This study illustrates that: 1) the migrants return in family groups; 2) they face discriminatory problems in employment agencies and schools; 3) they look forward to a formal education as a means of social mobility; 4) they identify themselves with values, habits, and Puerto Rican traditions; and 5) they value the quality of life in Puerto Rico. 相似文献
999.
Miller MJ 《The International migration review》1986,20(4):740-757
In the introduction to this special issue on temporary worker programs, the author defines the term temporary worker and reviews worldwide research, writings, and policies to date pertaining to temporary workers. Labor market and economic effects, socio-administrative conditions, and effects on the labor-sending societies are discussed. Noting that mutually exclusive arguments are presented within one issue of the journal, the author introduces the authors of the individual articles and their subjects. It is determined that the temporary worker phenomenon is now global and that having an understanding of these workers is increasingly central to understanding key socioeconomic and political processes affecting modern industrial and nonindustrial societies. 相似文献
1000.
"This article highlights important developments in the character of temporary worker flows to Canada between 1973 and 1985 through the use of unpublished data and new measures for analyzing this data. The number of employment authorizations are converted to person years to indicate the overall labor market impact of temporary worker flows and this measure is employed in an analysis of unpublished data from Employment and Immigration Canada. The analysis reveals that a significant and growing proportion of employment authorizations are exempted from governmental procedures which link the admission of temporary workers to the Canadian labor market." Reasons for these exemptions and policy implications are discussed 相似文献