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   605篇
  免费   32篇
  637篇
  2024年   2篇
  2023年   10篇
  2022年   7篇
  2021年   13篇
  2020年   8篇
  2019年   24篇
  2018年   25篇
  2017年   16篇
  2016年   29篇
  2015年   14篇
  2014年   25篇
  2013年   71篇
  2012年   33篇
  2011年   34篇
  2010年   21篇
  2009年   21篇
  2008年   19篇
  2007年   24篇
  2006年   25篇
  2005年   20篇
  2004年   18篇
  2003年   22篇
  2002年   18篇
  2001年   4篇
  2000年   7篇
  1999年   4篇
  1998年   6篇
  1997年   7篇
  1996年   7篇
  1994年   5篇
  1993年   4篇
  1992年   7篇
  1989年   2篇
  1988年   7篇
  1987年   4篇
  1986年   4篇
  1985年   16篇
  1984年   7篇
  1983年   2篇
  1982年   5篇
  1981年   5篇
  1980年   4篇
  1979年   5篇
  1978年   5篇
  1975年   5篇
  1973年   3篇
  1972年   2篇
  1971年   2篇
  1967年   1篇
  1965年   1篇
排序方式: 共有637条查询结果,搜索用时 15 毫秒
511.
Interventions to assist reproductive health decision-making in populations affected by sickle cell disease (SCD) or trait (SCT) lack proven efficacy over time. Our aim was to compare effects of CHOICES, a Web-based multimedia education program on implementing informed reproductive plans, and usual care education (e-Book) on reproductive knowledge, intention, and behavior over 24 months. We randomized 234 participants with SCD (n?=?138) or SCT (n?=?96) (age 18–35 years, 35 % male, 94 % African American) to CHOICES and e-Book groups. Participants completed a sickle cell-specific reproductive measure before and four times after the intervention (6, 12, 18 and 24 months). Compared to the e-Book group the CHOICES group had significantly more improvement in knowledge over time (p?=?.004) but not intention (p?=?.18) or behavior (p?=?.69). At baseline, 114 (48.7 %) participants reported having partners who would not put the couple at risk for their children inheriting SCD. Of the 116 (49.6 %) at-risk participants, a higher poroportion of those who were in the CHOICES group chose partners that reduced their risk by the last visit than the e-Book group (p?=?.04). Study findings provide important insights for designing a national trial of the CHOICES intervention focusing on subjects whose partner status puts them at risk for having a child with SCD.  相似文献   
512.
Use of apolipoprotein E genotyping to personalize the risk of a poor recovery after traumatic brain injury is complicated by the potential for genetic discrimination and the potential to reveal an increased risk for late onset Alzheimer’s disease. We developed a survey to gauge interest in testing among athletes participating in National Collegiate Athletic Association programs. Eight hundred and forty seven student-athletes were surveyed to determine their interest in genetic testing, their willingness to share the results of testing with parents, coaches and physicians, their concerns about privacy and/or discrimination, and their interest in genetic counseling. Nearly three quarters of respondents expressed some level of interest in testing, with the largest number describing themselves as ‘possibly interested’ (54.9 %, n = 463) and a smaller number describing themselves as ‘very interested’ (18.9 %, n = 159). Most student-athletes said that receiving secondary information about their risk for late-onset Alzheimer’s disease made them more likely to test (50.6 %, n = 426) rather than less likely to test (12.4 %, n = 104). Student-athletes were open to apolipoprotein E genotyping and willing to share test results with their parents, coaches and physicians. They did not anticipate that test results would impact their behavior or ability to play. Testing programs may be welcome but should provide clear information as to risks and benefits.  相似文献   
513.
514.
515.
The central thesis of this study is that crime victims' emotional distress, influenced by the severity of the offence experienced, impacts their propensity to utilize preventive measures via its influence on perceived risk of victimization and fear of crime. Path analysis was conducted to test a model of these relationships, utilizing data from a crime victimization survey conducted on the Caribbean Island, Trinidad, in 2015. Results suggest a direct predictive relationship between crime severity and emotional distress and indirect effects of emotional distress on preventive measures through risk perception and fear of crime. Findings were discussed in the context of prior research, comparability, and variances, and practical implications were noted.  相似文献   
516.
517.
Feminist studies of female genital cutting (FGC) provide ample evidence that many women exercise effective agency with respect to this practice, both as accommodators and as resisters. The influence of culture on autonomy is ambiguous: women who resist cultural mandates for FGC do not necessarily enjoy greater autonomy than do those women who accommodate the practice, yet it is clear that some social contexts are more conducive to autonomy than others. In this paper, I explore the implications for autonomy theory of these understandings of the relation between culture, FGC, and women's agency. I review the range of worldwide FGC practices – including "corrective" surgery for "ambiguous genitalia" in Western cultures as well as the various initiation rites observed in some African and Asian cultures – and the diverse cultural rationales for different forms of FGC. I argue that neither latitudinarian, value-neutral accounts of autonomy nor restrictive, value-saturated accounts adequately explain women's agentic position with respect to FGC. I then analyze a number of educational programs that have enhanced women's autonomy, especially by strengthening their introspection, empathy, and imagination. Such programs, which engage women's autonomy skills without exposing them to autonomy-disabling cultural alienation, promote autonomy-within-culture. This understanding of autonomy as socially situated, however, entails neither endorsement of FGC nor resignation to its persistence.  相似文献   
518.
519.
In first language research, there appear to be two predominant positions relating metalinguistic awareness to language development. One suggests that since metalinguistic awareness is related to primary language acquisition (comprehension and production), general cognitive processes perform a limited role in metalinguistic awareness. The other suggests that since metalinguistic awareness is more closely related to secondary language acquisition (reading and writing), a greater role is assumed by general cognitive processes. There have been some indirect attempts to study the role of language and cognition with respect to second language grammaticality judgments. There is growing evidence that metalinguistic awareness is a reliable indicator of developing second language competence. Furthermore, it has been shown that language aptitude is significantly related to metalinguistic awareness. The present study was designed to investigate the statistical relationship between second language grammaticality judgments and selected cognitive and linguistic variables. The variables studied were second language proficiency, second language classroom achievement, first language reading competence, language aptitude, nonverbal intelligence, field dependence-independence, and a written grammaticality judgment test tapping the ability to recognize, and correct, deviance. Subjects were college students in advanced English-as-a-second-language classes. Multivariate statistical techniques were used to determine the relative contribution of linguistic and cognitive variables to the individual variation demonstrated by the learners in their ability to detect deviance in English. The results showed that second language proficiency, second language achievement in the classroom, and language aptitude were significant predictors of the subjects' ability to make grammaticality judgments. First language reading competence was significantly related to subjects' ability to correct deviance. These observations are discussed in the light of: (1) the relationship among cognition, language, and metalinguistic awareness, and (2) the role of metalinguistic awareness in second language acquisition and second language learning.  相似文献   
520.
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