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   2062篇
  免费   61篇
  国内免费   8篇
管理学   8篇
劳动科学   1篇
民族学   20篇
人口学   479篇
丛书文集   138篇
理论方法论   97篇
综合类   854篇
社会学   520篇
统计学   14篇
  2024年   2篇
  2023年   21篇
  2022年   16篇
  2021年   18篇
  2020年   40篇
  2019年   35篇
  2018年   54篇
  2017年   62篇
  2016年   52篇
  2015年   57篇
  2014年   89篇
  2013年   353篇
  2012年   125篇
  2011年   91篇
  2010年   80篇
  2009年   72篇
  2008年   107篇
  2007年   135篇
  2006年   136篇
  2005年   107篇
  2004年   103篇
  2003年   110篇
  2002年   81篇
  2001年   67篇
  2000年   52篇
  1999年   19篇
  1998年   9篇
  1997年   5篇
  1996年   8篇
  1995年   2篇
  1994年   8篇
  1993年   4篇
  1992年   5篇
  1991年   3篇
  1990年   1篇
  1989年   1篇
  1987年   1篇
排序方式: 共有2131条查询结果,搜索用时 15 毫秒
91.
Objective: To analyze the impact of age, BMI and sex hormone on aging males’ symptoms (AMS) and the 5-item version of the international index of erectile function (IIEF-5) scores in middle-aged and elderly Chinese men.

Methods: A population-based cross-sectional study was conducted in Jiashan County. A total of 969 men, aged between 40 and 80 years old, were admitted. Physical examination and the sex hormones were measured, and AMS and IIEF-5 scores were assessed.

Results: The oneway ANOVA analysis indicated older age groups had higher AMS total-scores, somatic and sexual sub-scores, and lower IIEF5 scores (all p?rpairwise) analyses showed the significant associations between AMS and age or sex hormone (cFT, Bio-T, SHBG, and LH) levels, and similar for IIEF5. However, when age was adjusted, the correlation coefficients (rpartial) weakened, and correlation significance disappeared, except LH (for AMS: rpartial?=?0.096, p?=?.009; for IIEF-5: rpartial?= ?0.140, p?=?.001). Multiple linear regressions confirmed the influence of increased age and LH on the AMS and IIEF5 scores.

Conclusion: CFT, Bio-T and SHBG failed to yield any additional predicting information when age was adjusted. To improve the male reproductive health, future research should pay more attention on aging-related comorbidities and how to improve general wellness.  相似文献   
92.
The authors' goal was to characterize predictors of attitudes toward lesbian and gay parent families (LGPF), held by students enrolled in psychology, social work, medicine, nursing, elementary, and preschool education programs in Portugal. The authors examined the predictive value of students' (n = 600) sociodemographic characteristics when assessing their attitudes toward LGPF. Participant's gender, interpersonal contact with lesbians and gay men, gender role attitudes had indirect effects on attitudes toward LGPF, through attitudes toward lesbians and gay men. Understanding characteristics associated with attitudes toward LGPF may inform decisions in terms of the education and training of helping professionals.  相似文献   
93.
The relationship between teen childbearing and depression has been extensively studied; however, little is known about how young women's own attitudes toward becoming pregnant shape this association. This study used data from the National Longitudinal Study of Adolescent Health to investigate whether the relationship between teen childbearing and adult depression is moderated by adolescent attitudes toward becoming pregnant. The results showed that although, on average, women who had first births between ages 16 and 19 experienced no more depressive symptoms in adulthood than women who had first births at age 20 or older, the relationship between teen childbearing and adult depression varied significantly based on adolescent pregnancy attitudes. When they had negative adolescent attitudes toward getting pregnant, teen mothers had similar levels of depression as adult mothers, but when they had positive adolescent pregnancy attitudes, teen mothers actually had fewer depressive symptoms than women with adult first births.  相似文献   
94.
China’s middle-aged and older women suffer from poorer health than men. Using national baseline data from the China Health and Retirement Longitudinal Study (CHARLS), a survey conducted from 2011 to 2012, this article applies logistic models to investigate the association between female fertility history (parity, early childbearing, late childbearing) and middle-aged and late-life health. We find that parity is related to the mid-late-life health of women. Women with four children or more are more likely to suffer from activities of daily living (ADL) impairment and poorer self-rated health than those with one to three children. Early childbearing is associated with ADL impairment; however, the correlation is mediated by socioeconomic status. Early childbearing is related to self-rated health in later life by an indirect-only mediation effect via educational attainment and personal income.  相似文献   
95.
We examine economic inequality and social differences in infant and child mortality, and fertility responses to food price changes in North Orkney, 1855–1910, using linked vital records. This small population featured a diverse occupational structure, limited land resources, and geographic isolation from mainland Scotland. Segments of Orkney’s non-agricultural working population were living so close to the margin of subsistence in normal years that an increase in food prices in bad years cost the lives of their children. Delayed childbearing, in addition to increased labour intensity, occupational diversification, and poor relief, failed to mitigate the negative effects of unfavourable prices in this group. While previous studies for Western Europe show a strong social gradient in mortality responses to food prices, and for Eastern Asia a strong household gradient, this study shows a strong sectoral gradient, indicating low standards of living for the non-agricultural working population well into the twentieth century.  相似文献   
96.
Child sexual abuse is one of the main types of abuse still to be addressed within the field of education, yet the education system itself can serve as a primary tool for its prevention. A better understanding of teachers’ knowledge and beliefs about child sexual abuse will allow us to establish key starting points from which to utilize the system for prevention. Four hundred and fifty teachers participated in this study, completing a questionnaire regarding their knowledge and beliefs about child sexual abuse. The study revealed that over half the teachers, 65.3% (n = 294), had never received any type of training in child sexual abuse education and that the majority were not familiar with methods of identifying child sexual abuse, 90.7% (n = 279). Various mistaken beliefs were identified among the participating teachers, such as pathological profiles of abusers, that the vast majority of child sexual abuse implies violent behavior, and that there cannot be abusers the same age as the victim. These results indicate that knowledge deficiencies do exist about child sexual abuse among teachers and highlight the need for training in this field.  相似文献   
97.
This article uses feminist theory to investigate how the socialization processes used to maintain the clergy community in the Roman Catholic Church contributes to a vulnerability in some clergy for sexually abusing children. This vulnerability is identified first in an examination of the literature on the impact of socialization processes on clergy offenders between the 1960s and 1980s. A comparison is then made with the implications of the apostolic exhortation, Pastores Dabo Vobis, which provides a theological basis to clergy formation. The article argues that the document works to ensure a continuity of socialization processes that not only have been shown to create a vulnerability for committing child sexual abuse but compound existing vulnerabilities. The article concludes that constraints produced by the preservation of a hegemonic masculinity and patriarchy retain a threat of violence against children and require recommended reforms.  相似文献   
98.
Objective: The aim of this study was to analyze the age-related recession trajectory of reproductive health indices in middle-aged and elderly Chinese men.

Methods: A population-based cross-sectional study was conducted in Jiashan County, Zhejiang in 2012. Healthy men between 40 and 80 years of age were considered eligible for the study. Physical examination and the sex hormones were measured. The subjects were assessed based on the 5-item version of the International Index of Erectile Function (IIEF-5) for Erectile Dysfunction (ED), and Aging Males’ Symptoms (AMS) scale for Symptomatic Late-Onset Hypogonadism (SLOH).

Results: TG showed a decrease at age 60 years. Testis volume and TT did not show significant difference among the four age groups; cFT began to decrease at age 50 years and Bio-T decreased faster at age 50 years. SHBG and LH increased faster at age 50 and 70 years, respectively. IIEF5 score decrease faster at age 60 years. AMS scores increased faster at age 70 years. With the increase in age, the symptoms of ED and SLOH became severer.

Conclusion: Different indices on reproductive health of men showed turning points at different ages. At first, androgenic sex hormones decreased faster, and then erectile dysfunction got severer, and the last overall male syndromes declined.  相似文献   

99.
Family formation changed dramatically over the 20th century in the United States. The impact of these changes on childbearing has primarily been studied in terms of nonmarital fertility. However, changes in family formation behavior also have implications for fertility within marriage. The authors used data from 10 fertility surveys to describe changes in the timing of marital childbearing from the 1940s through the 21st century for non‐Hispanic White and non‐Hispanic Black women. Based on harmonized data from the Integrated Fertility Survey Series, the results suggest increasing divergence in fertility timing for White women. A growing proportion of marriages begin with a premarital conception; at the same time, an increasing proportion of White women are postponing fertility within marriage. For Black women, marital fertility is increasingly postponed beyond the early years of marriage. Evaluating the sequencing of marriage and parenthood over time is critical to understanding the changing meaning of marriage.  相似文献   
100.
This article draws on a case study of lesbian, gay, bisexual, and transgender (LGBT) and queer politics in Vermont to explain the conditions under which radical discourse gains and loses a public voice. In contrast to claims that the marginalization of queer discourse is due to silencing by LGBT rights activists or to litigation strategies, we argue that variation in queer discourse over time is the result of the co‐optation of queer discourse and goals by opponents. Extending the social movement literature on frame variation, we argue that opponents co‐opt discourse when they adopt aspects of the content of a movement's discourse, while subverting its intent. We show that conservative LGBT rights opponents co‐opted queer discourse. As a result, queer positions lost their viability as the discursive field in which those arguments were made was fundamentally altered. Because queer positions became less tenable, we see the withdrawal of queer discourse from the mainstream and alternative LGBT media. Our work both supports and builds on research on frame variation by demonstrating how discourse can change over time in response to the interplay between changing aspects of the political and cultural landscape and the discourse of opponents.  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