全文获取类型
收费全文 | 8732篇 |
免费 | 187篇 |
专业分类
管理学 | 1299篇 |
民族学 | 33篇 |
人口学 | 852篇 |
丛书文集 | 36篇 |
理论方法论 | 667篇 |
综合类 | 119篇 |
社会学 | 3786篇 |
统计学 | 2127篇 |
出版年
2020年 | 127篇 |
2019年 | 163篇 |
2018年 | 236篇 |
2017年 | 286篇 |
2016年 | 204篇 |
2015年 | 153篇 |
2014年 | 210篇 |
2013年 | 1427篇 |
2012年 | 288篇 |
2011年 | 268篇 |
2010年 | 199篇 |
2009年 | 194篇 |
2008年 | 180篇 |
2007年 | 214篇 |
2006年 | 188篇 |
2005年 | 191篇 |
2004年 | 186篇 |
2003年 | 161篇 |
2002年 | 171篇 |
2001年 | 221篇 |
2000年 | 207篇 |
1999年 | 192篇 |
1998年 | 140篇 |
1997年 | 138篇 |
1996年 | 143篇 |
1995年 | 115篇 |
1994年 | 118篇 |
1993年 | 103篇 |
1992年 | 155篇 |
1991年 | 136篇 |
1990年 | 132篇 |
1989年 | 124篇 |
1988年 | 107篇 |
1987年 | 95篇 |
1986年 | 103篇 |
1985年 | 114篇 |
1984年 | 129篇 |
1983年 | 135篇 |
1982年 | 109篇 |
1981年 | 99篇 |
1980年 | 91篇 |
1979年 | 101篇 |
1978年 | 97篇 |
1977年 | 82篇 |
1976年 | 71篇 |
1975年 | 71篇 |
1974年 | 60篇 |
1973年 | 63篇 |
1972年 | 43篇 |
1971年 | 50篇 |
排序方式: 共有8919条查询结果,搜索用时 562 毫秒
971.
G. H. Freeman S. D. Jacka J. E. H. Shaw J. Q. Smith 《Journal of applied statistics》1996,23(2):273-284
Central to the activities of any industry is the modernization of its assets. This paper describes the application of statistical methods to the asset management plan of a large water company. A model for the underground assets is given in detail, and the extensive computations required are illustrated. A Bayesian model shows the consequences of various policy options and provides realistic measures of the uncertainty connected with them. 相似文献
972.
Douglas V. Porpora 《Sociological Forum》1996,11(2):209-229
With the increased sociological interest in popular culture, many studies have examined the hero types lauded by the media
from situation comedies to movies, books, and magazines. Few studies, however, have examined who, if anybody, actual individuals
identify as personal heroes. To the extent that the hero identification of individuals has been examined at all, it has generally
been the hero identification of children and adolescents that has been studied. The study of heroes is important because heroes
are one indicator of who we are and what we stand for. That is partly what motivates the recent attention to the media's identification
of heroes. Yet while the media represent a very visible aspect of culture, who individuals privately cite as their heroes
is, although less visible, just as much a part of who we are as a culture. Accordingly, this paper reports on findings from
two telephone surveys conducted in Philadelphia that, among other questions pertaining to the meaning of life, asked adults
over 18 whether they had any heroes and if so who those heroes were. The tendency to identify with heroes was found to be
related to transcendental concerns with the meaning of life and to religiosity. Overall, the pattern of findings discloses
an unstudied dimension of cultural disenchantment. 相似文献
973.
Sociological Forum - 相似文献
974.
Brener Nancy D.; Eaton Danice K.; Kann Laura; Grunbaum Jo Anne; Gross Lori A.; Kyle Tonja M.; Ross James G. 《Public opinion quarterly》2006,70(3):354-374
This study examined whether the prevalence of self-reportedhealth risk behaviors among high school students varied by surveysetting (school versus home) and mode of administration (paperand pencil versus computer). Students in grades 9 and 11 wereassigned randomly to one of four conditionsschool paper-and-pencilinstrument (PAPI), school computer-assisted self-interview (CASI),home PAPI, and home CASI. During the spring of 2004, 4,506 studentscompleted identically worded questionnaires based on the YouthRisk Behavior Survey questionnaire. Logistic regression analysescontrolling for sex, grade, and race/ethnicity revealed thatsetting was associated significantly with the reporting of 30of the 55 risk behaviors examined, and mode was associated significantlywith the reporting of 7 of the 55 behaviors. For all behaviorswith a significant setting main effect, the odds of reportingthe behavior were greater among students who completed questionnairesat school than among students who completed questionnaires athome. For all behaviors with a significant mode main effect,PAPI mode students had lower odds of reporting the behaviorthan CASI mode students. Because social measurement researchassumes that higher prevalence estimates are more valid thanlower estimates, methodological factors shown to increase estimates,such as setting and mode, should be considered when planningsurveys. 相似文献
975.
A mixture model with Laplace and normal components is fitted to wind shear data available in grouped form. A set of equations is presented for iteratively estimating the parameters of the model using an application of the EM algorithm. Twenty-four sets of data are examined with this technique, and the model is found to give a good fit to the data. Some hypotheses about the parameters in the model are discussed in light of the estimates obtained. 相似文献
976.
Image correlation spectroscopy (ICS) is an experimental technique used in the study of cell tissue, specifically to obtain information about protein aggregates. This paper discusses a filtered Poisson process model of ICS, and uses this to obtain the sampling distribution of an estimator of interest, using spectral methods. Integrals of third- and fourth-order spectra are involved, and methods proposed in the literature are studied numerically. They are found to be infeasible methods, requiring months of computing time. An alternative method is proposed and is illustrated on some actual ICS experiments. A novel feature in this study is the use of a SIMD-class parallel computer, a MasPar MP-2 machine, to obtain some statistical properties of the estimation method. 相似文献
977.
978.
In this paper we explore the intersection of the modern-state and fieldwork practices within the social sciences. Our contention
is that during the past decade or so there has been an expansion in forbidden or restricted research terrain that threatens
the present and future conduct of social research. We argue that this restriction has been engendered by two related developments:
privatization and human subjects regulations. The social and political implications of these trends are considered.
Her most recent books areMadwives: Schizophrenic Women in the 1950s (Rutgers University Press, 1987) andGender Issues in Field Research (Sage, 1988).
He is the author ofCastles of Our Conscience: Social Control and the American State, 1800–1985 (Forthcoming, Polity Press, Cambridge, U.K.) 相似文献
979.
980.