全文获取类型
收费全文 | 29526篇 |
免费 | 513篇 |
专业分类
管理学 | 3752篇 |
民族学 | 145篇 |
人才学 | 13篇 |
人口学 | 2781篇 |
丛书文集 | 145篇 |
教育普及 | 2篇 |
理论方法论 | 2644篇 |
现状及发展 | 1篇 |
综合类 | 561篇 |
社会学 | 13987篇 |
统计学 | 6008篇 |
出版年
2023年 | 150篇 |
2021年 | 172篇 |
2020年 | 413篇 |
2019年 | 641篇 |
2018年 | 692篇 |
2017年 | 993篇 |
2016年 | 707篇 |
2015年 | 542篇 |
2014年 | 668篇 |
2013年 | 4974篇 |
2012年 | 999篇 |
2011年 | 853篇 |
2010年 | 691篇 |
2009年 | 645篇 |
2008年 | 745篇 |
2007年 | 762篇 |
2006年 | 668篇 |
2005年 | 691篇 |
2004年 | 666篇 |
2003年 | 640篇 |
2002年 | 682篇 |
2001年 | 755篇 |
2000年 | 626篇 |
1999年 | 628篇 |
1998年 | 506篇 |
1997年 | 461篇 |
1996年 | 455篇 |
1995年 | 425篇 |
1994年 | 416篇 |
1993年 | 403篇 |
1992年 | 467篇 |
1991年 | 443篇 |
1990年 | 423篇 |
1989年 | 399篇 |
1988年 | 419篇 |
1987年 | 390篇 |
1986年 | 374篇 |
1985年 | 404篇 |
1984年 | 367篇 |
1983年 | 379篇 |
1982年 | 292篇 |
1981年 | 272篇 |
1980年 | 273篇 |
1979年 | 294篇 |
1978年 | 259篇 |
1977年 | 228篇 |
1976年 | 212篇 |
1975年 | 215篇 |
1974年 | 166篇 |
1973年 | 144篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
The study reported describes Efe (pygmy) forager one-, two-, and three-year-olds' involvement with males. The Efe of northeastern Zaïre were chosen because their social organization allows us to examine hypotheses based on studies in Western, technologically complex societies about the distinctive role fathers play in the lives of their young children. Behavioral observations of Efe children's day-to-day activities with fathers, men and boys were recorded using a focal subject sampling technique (Altmann, 1974). Two behavioral measures were created to capture the extent to which males were involved with children: Social engagement describes males' involvement with children and social attention describes eavesdropping by children on males' everyday activities. Eight one-year-olds, 7 two-year-olds and 8 three-year-olds were each observed for six, one-hour observation sessions that were distributed evenly over the daylight hours. Data were analyzed using the traditional measure of involvement (e.g., adult males) and using a newly developed measure of the involvement of the average individual (e.g., average adult mate). Comparisons at each of the ages showed that fathers were consistently like other men in the extent to which children participated in social activities with them and watched their activities. Only fathers' level of social engagement declined significantly as children grew older. Boys' role relative to other males became increasingly distinctive as children aged. The findings suggest that Efe fathers may not be unique in the same sense assumed by Western study ideals, and raise questions about the special status given to fathers in Western theory and data. The patterning of mate involvement with children is discussed in terms of Efe community life, and in terms of Efe children's developing understanding of their relationship with fathers and other males. 相似文献
32.
33.
34.
35.
36.
37.
This article examines whether asking the vote question beforeparty identification alters the strength of partisanship andits relationship to vote choice. It employs the 1992 BritishElection Survey, which included a random split half-sample experiment,and the 1992–93 American Election Study Panel, where thequestion order for party identification and the vote were changed.The results show that altering the question ordering had verylittle effect in Britain and no significant effect in the UnitedStates. These results are consistent with the notion that partyidentification is one of the more enduring and stable componentsof mass political behavior in both presidential and parliamentarysystems. 相似文献
38.
39.
Nick Cocco MA Louise Sharpe M. Psych. Alex P. Blaszczynski Ph.D. 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》1995,11(2):221-229
Twelve problem poker machine players and thirteen horse race gamblers (20 males and 5 females; age range 28–69) completed a series of questionnaires which assessed levels of anxiety, their preferred state of arousal and their motivations to gamble. As predicted, problem poker machine gamblers were found to be more anxious and reported avoiding arousal more frequently than the horse race gamblers. Alternately, problem horse race gamblers were found to prefer heightened levels of arousal and appeared to gamble to achieve these optimal levels of arousal. However, there was no difference between the groups on proneness to boredom. The present results provide evidence which is consistent with the Reversal theory and its application to the field of problem gambling. 相似文献
40.
D R Lairson R Harrist D W Martin R Ramby T A Rustin J M Swint K Harlow J Cobb 《Journal of drug education》1992,22(4):337-352
Primary care physicians are well situated to identify patients with substance abuse problems and motivate them to seek appropriate assistance, but active programs are the exception. A study in a community setting was undertaken to assess the CAGE (the first letters of key words in a series of four questions about drinking: cut down; annoyed; guilty; and eye-opener), instrument in the routine screening for alcohol problems in both new and established patients. The screening process identified subjects for a pilot evaluation of a motivational interview designed to encourage problem-solving behavior. This article focuses on the screening results and the use of the CAGE instrument. During June and July of 1990, 687 patients of two primary care physicians belonging to a large group practice were asked to complete a health questionnaire that included the CAGE. Those who responded affirmatively to at least two of the four CAGE questions were requested to participate in follow-up assessment of problems associated with alcohol and health. The type and severity of alcohol problems experienced by patients who scored positive on the CAGE are described. Prevalence of a positive score on the CAGE was 8.6 percent with males, smokers, and blue collar and unemployed persons being more likely to score positive. The positive predictive value was .68. Primarily, persons with moderate alcohol problems were identified. Results show that the CAGE instrument is a useful screening device for identifying those with mild to moderate substance abuse problems, increasing the opportunity for intervention prior to serious medical complications. The instrument is easily administered, and has demonstrated relatively high levels of sensitivity and specificity. When combined with assessment and motivational interviews, the CAGE shows promise in the secondary prevention of substance abuse and related health problems. 相似文献