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   26318篇
  免费   759篇
  国内免费   2篇
管理学   3506篇
民族学   138篇
人口学   2340篇
丛书文集   105篇
教育普及   1篇
理论方法论   2348篇
综合类   301篇
社会学   12964篇
统计学   5376篇
  2023年   163篇
  2021年   155篇
  2020年   434篇
  2019年   648篇
  2018年   732篇
  2017年   999篇
  2016年   740篇
  2015年   531篇
  2014年   715篇
  2013年   4734篇
  2012年   919篇
  2011年   848篇
  2010年   656篇
  2009年   541篇
  2008年   726篇
  2007年   671篇
  2006年   678篇
  2005年   539篇
  2004年   539篇
  2003年   454篇
  2002年   494篇
  2001年   617篇
  2000年   550篇
  1999年   529篇
  1998年   419篇
  1997年   376篇
  1996年   386篇
  1995年   385篇
  1994年   323篇
  1993年   368篇
  1992年   415篇
  1991年   397篇
  1990年   399篇
  1989年   342篇
  1988年   338篇
  1987年   301篇
  1986年   316篇
  1985年   324篇
  1984年   321篇
  1983年   280篇
  1982年   244篇
  1981年   185篇
  1980年   239篇
  1979年   266篇
  1978年   200篇
  1977年   184篇
  1976年   154篇
  1975年   175篇
  1974年   154篇
  1972年   121篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
Temperament by parenting interactions may reflect that individuals with greater risk are more likely to experience negative outcomes in adverse contexts (diathesis‐stress) or that these individuals are more susceptible to contextual influences in a “for better or for worse” pattern (differential susceptibility). Although such interactions have been identified for a variety of child outcomes, prior research has not examined approach characteristics—excitement and approach toward pleasurable activities—in the first year of life. Therefore, this study investigated whether 6‐month maternal reported infant negative affect—a phenotypic marker of risk/susceptibility—interacted with 8‐month observed parenting behaviors (positive parenting, negative parenting) to predict 12‐month infant behavioral approach. Based on a sample of mothers and their infants (= 150), results indicated that negative parenting was inversely associated with subsequent approach for infants with high, but not low, levels of negative affect. Similar results did not occur regarding positive parenting. These findings better fit a diathesis‐stress model rather than a differential susceptibility model. Implications and limitations of these findings are discussed.  相似文献   
942.
943.
This article asks whether hymns written prior to and following the Second Vatican Council (Vatican II) differ significantly in their use of self- and divine-referential pronouns and answers this question by content analyzing the lyrics of 196 hymns in two different hymnals used in Catholic parishes today. It finds that hymns written post-Vatican II contain significantly more self-referential pronouns as well as an interestingly different mix of divine-referential pronouns than hymns written pre-Vatican II. These findings contribute to our knowledge of how shifts in religious organizations’ identities find expression in liturgical texts, which is important for understanding how the religious identities of individuals and communities are socially constructed over time.  相似文献   
944.
ABSTRACT

This article identifies trends in the adoption and implementation of quotas for corporate boards, an underresearched topic in political science. Corporate quotas—like legislative quotas—constitute the “fast track” to gender equality but appear more commonly in advanced democracies. These corporate quotas fall into three categories: laws covering all companies; laws covering state-owned companies only; and nonbinding (voluntary) measures in corporate governance codes. Despite on-paper differences, these corporate quotas are largely toothless. First generation corporate quotas, like first generation legislative quotas, operate symbolically. By raising the specter of stringent legislation in the long run, corporate quotas induce firms into voluntary compliance in the short run.  相似文献   
945.
In the United States, the transgender and gender nonconforming (TGNC) population has increased twofold since 2011. Although counseling professionals are called to provide competent services to TGNC clients, no empirical studies exist that examine one of the first points of contact: Intake paperwork. The authors conducted a content analysis (N = 128) of intake paperwork and assessed how and if clinicians asked for gender, sex, and sexual/affectual orientation, and whether they conflated these constructs. Findings indicate adjustments need to be made for intakes to be more inclusive of these constructs. The authors offer clinical implications and avenues for future research.  相似文献   
946.

Background

Previous physical activity (PA) tracking studies have examined the stability of overall PA and/or PA types, but few have investigated how specific types of sport/exercise track over the life course. The aim of this study was to determine how specific sports/exercises in midlife track and predict future sport/exercise and PA in men transitioning to old age.

Methods

Seven thousand seven hundred thirty-five men (aged 40–59?years) recruited in 1978–80 were followed up after 12, 16 and 20?years. At each wave men self-reported participation in sport/exercise. Frequent sport/exercise participants (>?1/month) reported the types of sport/exercise they engaged in. Men also reported total PA, health status, lifestyle behaviours and socio-demographic characteristics. Stability of each sport/exercise was assessed using kappa statistics and intraclass correlation coefficients. Logistic regression estimated the odds of participating in sport/exercise and being active at 20-year follow up according to specific types of sport/exercise in midlife.

Results

Three thousand three hundred eighty-four men with complete data at all waves were included in analyses. Tracking of specific sports/exercises ranged from fair to substantial, with golf being the most common and most stable. Bowls was the most frequently adopted. Odds of participating in sport/exercise and being active in old age varied according to sport/exercise types in midlife. Golf and bowls in midlife were the strongest predictors of sport/exercise participation in old age. Golf, cricket and running/jogging in midlife were among the strongest predictors of being active in old age. Compared to participating in just one sport/exercise in midlife, sampling multiple sports/exercises was more strongly associated with sport/exercise participation and being active in old age.

Conclusion

The stability of sport/exercise participation from midlife to old age varies by type. Specific sports/exercises in midlife may be more likely to predict future PA than others. However, participating in a range of sports/exercises may be optimal for preserving PA into old age.
  相似文献   
947.
This article analyses international policy discussions on migration and development (M&D) and contrasts these with the actual M&D policies and practices of 11 European countries who were among the main proponents of this international discourse. Desk research of public documents and accompanying information sought from these 11 governments as well as in the European Commission (EC) provide the basis for a comparative analysis of their overall M&D policies and strategies, and institutional settings for formulating and implementing these. The comparison shows that M&D policy and practice remains in a tentative and experimental phase, and that countries experience difficulties reflecting their international positions in their own policies, as well as in learning from their own efforts and those of others. While stressing the developmental potential of migration in international discussions, most of the countries’ policies still reflect an understanding of migration as a problem and a preoccupation with short‐term domestic interests.  相似文献   
948.
Using longitudinal data across eight years, this study examined how parents' familism values in early adolescence predicted youths' depressive symptoms in young adulthood via youths' familism values and family time. We examined these processes among 246 Mexican‐origin families using interview and phone‐diary data. Findings revealed that fathers' familism values predicted male and female youths' familism values in middle adolescence. For female youth only, fathers' familism values also predicted youths' family time in late adolescence. The link between family time and young adults' depressive symptoms depended on parental acceptance and adolescent gender: Among female and male youth, family time predicted fewer depressive symptoms, but only when paternal acceptance was high. For female adolescents only, family time predicted fewer depressive symptoms when maternal acceptance was high but more depressive symptoms when maternal acceptance was low. Findings highlight family dynamics as the mechanisms through which familism values have implications for youths' adjustment.  相似文献   
949.
Research indicates that desire and arousal problems are highly interrelated in women. Therefore, hypoactive sexual desire disorder (HSDD) and female sexual arousal disorder (FSAD) were removed from the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), and a new diagnostic category, female sexual interest/arousal disorder (FSIAD), was created to include both arousal and desire difficulties. However, no research has tried to distinguish these problems based on psychosocial-physiological patterns to identify whether unique profiles exist. This study compared psychosocial-physiological patterns in a community sample of 84 women meeting DSM-IV (American Psychiatric Association, 2000 American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders (4th ed., text rev.). Washington, DC: Author.[Crossref] [Google Scholar]) criteria for HSDD (n = 22), FSAD (n = 18), both disorders (FSAD/HSDD; n = 25), and healthy controls (n = 19). Women completed self-report measures and watched neutral and erotic films while genital arousal (GA) and subjective arousal (SA) were measured. Results indicated that GA increased equally for all groups during the erotic condition, whereas women with HSDD and FSAD/HSDD reported less SA than controls or FSAD women. Women in the clinical groups also showed lower concordance and greater impairment on psychosocial variables as compared to controls, with women with FSAD/HSDD showing lowest functioning. Results have important implications for the classification and treatment of these difficulties.  相似文献   
950.
Intimate partner violence (IPV) victimization is linked to sexual risk exposure among women. However, less is known about the intersection of IPV perpetration and sexual risk behavior among men. This study used data from a diverse, community sample of 334 heterosexually active young men, aged 18 to 25, across the United States to examine whether and how men with distinct IPV-related behavior patterns differed in sexual risk–related behavior and attitudes. Participants were recruited and surveyed online, and grouped conceptually based on the types of IPV perpetration behavior(s) used in a current or recent romantic relationship. Groups were then compared on relevant sexual risk variables. Men reporting both physical abuse and sexual coercion against intimate partners reported significantly higher numbers of lifetime partners, higher rates of nonmonogamy, greater endorsement of nonmonogamy, and less frequent condom use relative to nonabusive men or those reporting controlling behavior only. This group also had higher sexually transmitted infection (STI) exposure compared to men who used controlling behavior only and men who used sexual coercion only. Findings suggest that interventions with men who use physical and sexual violence need to account for not only the physical and psychological harm of this behavior but also the sexual risk to which men may expose their partners.  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