首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   3068篇
  免费   6篇
  国内免费   1篇
管理学   230篇
民族学   64篇
人才学   7篇
人口学   380篇
丛书文集   89篇
教育普及   2篇
理论方法论   455篇
现状及发展   1篇
综合类   201篇
社会学   1481篇
统计学   165篇
  2021年   5篇
  2020年   4篇
  2018年   4篇
  2015年   4篇
  2014年   7篇
  2013年   5篇
  2012年   318篇
  2011年   268篇
  2010年   104篇
  2009年   41篇
  2008年   183篇
  2007年   217篇
  2006年   167篇
  2005年   153篇
  2004年   164篇
  2003年   104篇
  2002年   129篇
  2001年   86篇
  2000年   109篇
  1999年   79篇
  1998年   44篇
  1997年   48篇
  1996年   40篇
  1995年   37篇
  1994年   28篇
  1993年   62篇
  1992年   49篇
  1991年   35篇
  1990年   25篇
  1989年   37篇
  1988年   47篇
  1987年   36篇
  1986年   41篇
  1985年   45篇
  1984年   40篇
  1983年   47篇
  1982年   56篇
  1981年   49篇
  1980年   46篇
  1979年   27篇
  1978年   15篇
  1977年   10篇
  1976年   5篇
  1975年   5篇
  1974年   4篇
  1973年   6篇
  1971年   6篇
  1970年   5篇
  1967年   7篇
  1966年   5篇
排序方式: 共有3075条查询结果,搜索用时 15 毫秒
991.
The present study examined the perceptions of early interpersonal experiences of sexual offenders (child molesters and rapists) and two criminal comparison groups. A grounded theory approach was applied to a comprehensive list of responses provided by the participants to questions about their early interpersonal experiences. The raw data was collapsed into 14 basic categories by grouping together responses of similar meanings. The categories were responsiveness, consistency, acceptance, boundaries, emotional regulation, autonomy, self-evaluation, developmental trauma, sexual abuse and deviation, physical abuse, loss, conflict, safety, and positive mediating interactions. In the second part of the study, the four groups were compared using the categories and the differences noted. All four groups experienced significantly negative early interpersonal experiences.  相似文献   
992.
With rates of adolescent tobacco use steadily increasing over the past 20 years, assisting youth to quit, particularly those youth most susceptible to tobacco use, has become a national focus. The purpose of this pilot study was to examine and profile the smoking patterns of a small sample (n = 37) of juvenile offenders in Texas. In contrast to anecdotal reports, the sample group from this study did not differ clinically from the general population of adolescent tobacco users. Importantly, the study participants indicated previous attempts to stop smoking. The authors conclude that delinquent youth may be responsive to cognitive behavioral smoking cessation programs that also address the management of peer networks.  相似文献   
993.
We offer a theoretical perspective to provide insight into why people are ambivalent about sex and why cultures regulate sex and attach symbolic meaning to it. Building on terror management theory, we propose that sex is problematic for humankind in part because it reminds us of our creaturely mortal nature. Two experiments investigated the effects of reminding people of the similarity between humans and other animals on their reactions to the physical aspects of sex. In Study 1, priming human-animal similarities led to increased accessibility of death-related thoughts after thinking about the physical but not romantic aspects of sex. In Study 2, when participants were reminded of similarities between humans and other animals, mortality salience resulted in decreased attraction to the physical but not romantic aspects of sex. In each study, priming thoughts about how humans are distinct from animals eliminated the association between sex and death.  相似文献   
994.
This study examined the role of emotional awareness in couples' relationships and the effects of a tendency to respond to difficult couples' situations with "soft" emotions (including sadness and fear) versus "hard" emotions (including anger and resentment). Participants were 56 heterosexual couples who completed a measure of relationship satisfaction and two measures of emotional awareness, including one that was developed as part of this study. Results indicated that women were more emotionally aware than men in response to couples' situations, but not in response to general situations outside the relationship. In addition, higher levels of emotional awareness and a higher awareness of "hard" emotions were associated with decreased relationship satisfaction for women, but not for men. Discrepancy between partners' levels of awareness was related to lower satisfaction for both men and women.  相似文献   
995.
This Issue Brief develops a model that project the proportion of an individual's preretirement income that might be replaced by 401(k) plan accumulations at retirement, under several different projected scenarios. The 401(k) participant behaviors in the model are based on the year-end 2000 database collected by the Employee Benefit Research Institute (EBRI) and the Investment Company Institute (ICI) in their collaborative effort known as the EBRI/ICI Participant-Directed Retirement Plan Data Collection Project. The most significant factor affecting projected replacement rates at retirement is having access to a 401(k) plan. Projected replacement rates from 401(k) accumulations at retirement are reduced significantly when participants are not offered a 401(k) plan in all portions of their careers. Most 401(k) participants tend to have contributions in any given year. Thus, projecting that participants always have contributions (their own and/or employer contributions) every year raises projected replacement rates, but not by much compared with the importance of being offered a plan to begin with. The model simulations show that participant activities such as taking loans, taking preretirement withdrawals, or cashing out account balances at job change reduce projected 401(k) accumulations and thus replacement rates at age 65. Because loans are forecast to be paid back to the account in full, their effect on replacement rates at retirement in the model is the smallest. Even if equity returns in the future are projected to replicate the worst 50-year segment in the Standard & Poor's (S&P) 500 history (1929 to 1978), 401(k) accumulations are still projected to replace significant proportions of projected preretirement income. Another projection scenario forecasts participants experiencing a simulated three-year bear market (negative equity returns) either early in their careers, near the middle of their careers, or at the end of their careers. Forecasts of the effects of bear markets on 401(k) balances show that a bear market in equities is projected to have the largest effect the closer it occurs to age 65 (retirement), even though older participants typically have diversified their portfolios away from equities. A three-year bear market for those early in their careers would reduce median replacement rates from 401(k) accumulations by an estimated 2.9-3.7 percentage points, compared with 13.4-17.7 percentage points for those immediately before retirement. Similarly, a simulated three-year bull market (positive equity returns) is projected to have a larger positive effect on projected account balances and replacement rates the closer it occurs to retirement.  相似文献   
996.
The countries of the Middle East all have traditional social insurance type social security programs. The move towards defined contribution individual accounts that is occurring in some regions has not affected this region The social security programs in the Middle East are not facing the problems of financing found in Europe and North America, in part because they still have relatively high fertility rates and are thus little affected by population aging. They tend to have low retirement ages and some of the wealthy countries of the region provide very generous benefits. Many of them need to consider reforms that raise retirement ages. A characteristic of many of the social security old-age benefit programs of the region is that they exclude foreign workers, who in some countries account for more than half the workforce.  相似文献   
997.
We studied perceived partner verbal behaviors associated with participants' use of dating aggression. Men's reports of their partners' demanding, controlling, and psychologically abusive behaviors during conflicts were expected to predict men's perpetration against partners. In contrast, women's reports of their partners' withdrawal were expected to predict women's perpetration. Data were collected from heterosexual undergraduates (N = 223) in exclusive dating relationships. Participants' reports of partner demands and partner psychological abuse were associated with participants' use of physical aggression and sexual coercion. Reports of partner withdrawal and partner controlling behaviors were associated with participants' sexual coercion only. Significant moderating effects of gender emerged. As expected, partner demands, controlling behaviors, and psychological abuse were associated with physical aggression and sexual coercion in men, but not women. Partner withdrawal was associated with sexual coercion in both women and men. We conclude that gender-sensitive approaches are necessary to understand and prevent verbal conflict patterns associated with physical aggression and sexual coercion in intimate relationships.  相似文献   
998.
Gambling participation in the U.S.--results from a national survey   总被引:1,自引:0,他引:1  
Demographic patterns of gambling participation in the U.S. were examined. A national telephone survey was conducted with 2,630 representative U.S. residents aged 18 or older. The sample as weighted for analysis was 48% male, 12% black, and 11% Hispanic. Respondents were questioned on 15 types of gambling: how often they played and how much they won or lost. Eighty-two percent gambled in the past year. Lottery was the most commonly played game, while casino gambling accounted for the largest extent of gambling involvement. Men and women were equally likely to gamble in the past year, but men gambled more frequently and had larger wins and losses, particularly on sports betting and games of skill. Blacks were less likely to have gambled in the past year, but blacks who gambled did so more heavily than other racial groups. Blacks and Hispanics were more likely than average to be pathological gamblers. The rate of past year gambling declined with age, but extent of gambling involvement among gamblers did not vary with age. Rates of participation in most forms of gambling increased with socioeconomic status, but higher socioeconomic status gamblers had lower rates of pathological gambling, and lower extent of gambling involvement, particularly for lottery. New Englanders gambled more heavily than other Americans. Comparison with past studies showed an increase in overall gambling participation in the U.S., and large increases in rates of participation in lottery and casino gambling.  相似文献   
999.
An ergonomics team from the US Army Center for Health Promotion and Preventive medicine evaluated 465 video display terminal (VDT) workstations in a Government office building over an 18-day period. Each workstation evaluation involved an assessment of the worker, the chair, the desk, the keyboard, the pointing device, the monitor, and the office environmental conditions. The team also collected worker pain and injury information. The problems seen during the evaluation were characteristic of most office environments where VDT workstation furniture was purchased before the advent of mouse-driven software. The majority of furniture evaluated was not designed to meet the demands of intensive mouse use for prolonged periods of time. Much of the workstation furniture was not adjustable, chairs lacked adequate back support, and workers assumed non-neutral postures. As a result, more than 35% of the workers evaluated complained of on-the-job pain. New office furniture that is adjustable, adequate desk space and storage space were among the solutions recommended by the ergonomics team.  相似文献   
1000.
This study assessed the construct validities and the relationships between Optimism [21], Hope [27], Self-Efficacy [18], and Locus of Control [12]. The validities and relationships between these scales were examined not only because they are to some degree rival constructs but also because there is an outstanding theoretical question in the literature of whether each of these variables is a state or trait variable or both. Synder' Hope scale was the "know marker" trait-state scale in this study. Data were obtained on all scales from 78 at-risk university students and 22 regular (or normal) students, as all scales either make claims about or have existing data on these two different types of subjects. Other background data were also collected. A Manova on the 13 variables for which data were obtained found significant profile differences between the two groups of subjects as theory and the literature predicted at the 0.01 level. The trait-state two factor structure of Synder's Hope scale was found except the structure was orthogonal in at-risk students as opposed to the oblique structure Synder found in normals. The same strong results were obtained for Schiever and Carver's Optimism scale which additionally resolved an outstanding interpetability issue with this scale. Hypothesized factor structures were not obtained for the self-efficacy or the locus of control scales and both scales best fit the trait-sate model, which contradicts Bandura's and other prevailing view of these two variables, but supports the results found by Bandalos et al. [2].  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号