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   1498篇
  免费   72篇
  2024年   2篇
  2023年   18篇
  2022年   16篇
  2021年   28篇
  2020年   48篇
  2019年   49篇
  2018年   70篇
  2017年   59篇
  2016年   60篇
  2015年   52篇
  2014年   50篇
  2013年   185篇
  2012年   112篇
  2011年   94篇
  2010年   49篇
  2009年   60篇
  2008年   69篇
  2007年   72篇
  2006年   72篇
  2005年   56篇
  2004年   52篇
  2003年   44篇
  2002年   59篇
  2001年   22篇
  2000年   20篇
  1999年   17篇
  1998年   16篇
  1997年   8篇
  1996年   15篇
  1995年   16篇
  1994年   16篇
  1993年   5篇
  1992年   16篇
  1991年   5篇
  1990年   3篇
  1989年   6篇
  1988年   4篇
  1987年   4篇
  1986年   3篇
  1985年   4篇
  1984年   3篇
  1983年   2篇
  1981年   2篇
  1980年   2篇
  1979年   3篇
  1978年   2篇
排序方式: 共有1570条查询结果,搜索用时 15 毫秒
811.
A 1999 study of United Kingdom servicemembers by Unwin, et al. recently found significant relationships between anthrax and other vaccinations, reactions to those vaccines, and later health problems for male current or former active military Gulf War veterans. Likewise, in 2000 Steele and in 1998 Gilroy found possible adverse effects of vaccinations on Gulf War veterans. However, the role of such vaccinations remains controversial; more recent government reports continue to dispute the existence of any data that might reflect adversely on the role of vaccinations on the health of Gulf War veterans. To address this controversy, the current study assessed similar relationships for over 900 Reserve Component Gulf War Era veterans from Ohio and nearby states. Gulf War veterans were more likely to report poorer health than non-Gulf veterans. Female veterans were more likely to report mild or severe reactions to vaccines than male veterans. Those veterans who received anthrax vaccine reported more reactions to vaccines than those who did not receive anthrax vaccine. Declines in long-term subjective health were associated with receipt of anthrax vaccine by Gulf War veterans but not for those who did not deploy to the Gulf, although few of the latter received anthrax vaccine. Regardless of deployment status, veterans who reported more severe reactions to vaccines were more likely to report declines in subjective health. Female veterans reported poorer health during the Gulf War than did male veterans, but sex was not related to veterans' reports of subjective health at subsequent times. It is recommended that servicemembers who experience severe reactions to anthrax vaccine be medically reevaluated before receiving further anthrax vaccine and that careful follow-ups be conducted of those receiving the vaccine currently, in accordance with Nass's 1999 recommendations. We also recommend that safer alternatives to thimerosal (a mercury sodium salt, 50% mercury) be used to preserve all vaccines.  相似文献   
812.
Rats in a state of salt need prefer a flavor that has previously been paired with saline (Experiment 1). In Experiments 2 and 3, rats exposed to 2 saline concentrations, presented either concurrently or on separate trials, and each paired with a different flavor, showed a preference for the flavor that had been associated with the stronger saline. This effect was substantial, however, only in those rats that had experienced the concurrent exposure schedule. This effect cannot be attributed to a difference in the strength of within-compound associations produced by the 2 preexposure schedules (Experiment 4). It is suggested that concurrent preexposure can engage a learning process that enhances the discriminability of the preexposed stimuli.  相似文献   
813.
The cultural internalization and competence of a diverse sample of tricultural university students was assessed. Based on recent research on the internalization of cultural norms, it was predicted that (a) having a heritage culture that embraced egalitarian values would be conducive to autonomous internalization and cultural competence, (b) competence and internalization would be associated with positive affect in heritage cultural contexts, and (c) the same positive relations between competence, internalization, and affect would be evident in English Canadian and French Canadian contexts. The study included 113 participants representing more than 35 distinct ethnicities. Results supported the hypothesized relations among egalitarianism, autonomous internalization, competence, and affect. Furthermore, the results indicated that individuals' cultural adaptation in both heritage and English Canadian cultures, combined with the extent to which they had integrated their cultural identities in their self, predicted psychological wellbeing.  相似文献   
814.
Self-objectification theory posits and past research has found that Caucasian women's body image is negatively affected by a stigma of obesity and sociocultural norm of thinness that leads women to self-focus from a critical external perspective. However, research in this area is limited by its methodology and the restricted demographic composition of its study participants. The current study tested 176 men and 224 women of Caucasian, African American, Hispanic, and Asian American descent in a situation that induced a state of self-objectification (e.g., wearing a one-piece Speedo bathing suit) or that served as a control condition (e.g., wearing a sweater). Contrary to previous research, when put in a self-objectifying situation, men and women of every ethnicity experienced negative outcomes (e.g., lower math performance) that parallel those previously found for Caucasian women.  相似文献   
815.
816.
The significant expansion of correctional populations in the last decade, coupled with the gradual erosion of community treatment infrastructure and health insurance, have brought greater attention to the needs of offenders who have co-occurring mental health and substance use disorders. Individuals with co-occurring disorders frequently cycle through acute care facilities in the community and increasingly are placed in jails or prisons. Approximately 16% of inmates in correctional facilities have major mental health disorders (Bureau of Justice Statistics, 1999), and a large majority of these inmates have co-occurring substance use disorders. Few studies have examined the effectiveness of correctional treatment for co-occurring disorders, and there is little information available regarding clinical and programmatic approaches used with this population. The current study provides findings from a comprehensive national survey of co-occurring disorder treatment programs in correctional settings. A total of 20 co-occurring disorder treatment programs from 13 state correctional systems were identified and surveyed. Many of the programs featured modified therapeutic communities, but there was significant diversity in the duration of treatment and type of services provided. Several unique structural and clinical modifications to treatment have been developed in these settings. Implementation of co-occurring disorder treatment programs has led to enhanced collaboration with prison health services and community supervision and treatment agencies, and greater use of interdisciplinary staff to provide outreach and case management services. Research is now being conducted to examine outcomes in several of these correctional treatment programs.  相似文献   
817.
The purpose of the study was to investigate the life experiences of a group of South African adults who stutter and the impact of stuttering on their quality of life. Participants were 16 adults with a mean age of 28.9 and ranging from 20 to 59 years. Methods involved individual interviews designed to explore the life domains of education; social life; employment; speech therapy; family and marital life; and identity, beliefs and emotional issues. Main findings of the study indicated that the majority of participants perceived their stuttering to have impacted on their academic performance at school, and relationships with teachers and classmates. Although their stuttering was not perceived to adversely influence their ability to establish friendships, people generally reacted negatively to their stuttering. Many felt that their stuttering did not have an adverse effect on their choice of occupation, ability to obtain work, and relationships with managers and co-workers, although it was perceived to influence their work performance and hamper their chances for promotion. Although the majority viewed their speech therapy experiences as being negative; more than half the sample believed that speech therapy had, nevertheless exerted a positive effect on their quality of life. Overall, stuttering did not appear to have influenced participants’ family and marital life. Most participants felt that stuttering had affected their self-esteem and self-image, and had evoked strong emotions within them. Findings are taken to suggest the need to incorporate subjective feelings about stuttering into the clinical practice of speech-language therapy; to provide information and coping strategies for teachers and employers; and for further research.

Educational objectives: After completing this activity, the reader will be able to: (1) describe and explain the perceived impact of stuttering on quality of life in terms of education; social life; employment; speech therapy; family and marital life; and identity, beliefs and emotional issues; (2) to interpret and utilize the subjective meanings that individuals attach to their stuttering to improve stuttering treatment, counseling and research.  相似文献   

818.
819.
Michael Balint, who used to be known the world over, no longer gets either the fame or the influence that he deserves, and the three special issues of the journal devoted to him are meant to contribute to make him better known. I intend to draw a portrait of Balint—it will necessarily be only an outline, within the limits of the present issue—and to follow his path as a man and as a scholar.  相似文献   
820.
The rationale underpinning the diagnosis of acute stress disorder is that cognitive mechanisms result in avoidant processing of aversive experiences. This study investigated acutely traumatized participants with either acute stress disorder (ASD; n = 15) or no ASD (n = 14) and nontraumatized comparison participants (n = 16). Participants were administered intermixed presentations on a computer screen of positive, neutral, and trauma-related words that were followed by instructions to either remember or forget each word. On a subsequent recall test, ASD participants displayed poorer recall of to-be-forgotten trauma-related words than did non-ASD participants. Severity of psychopathology was negatively correlated with to-be-remembered positive words. These findings are consistent with the proposal that people who develop ASD display an aptitude for superior forgetting of aversive material.  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