全文获取类型
收费全文 | 2133篇 |
免费 | 94篇 |
专业分类
2227篇 |
出版年
2023年 | 16篇 |
2021年 | 18篇 |
2020年 | 42篇 |
2019年 | 48篇 |
2018年 | 48篇 |
2017年 | 64篇 |
2016年 | 62篇 |
2015年 | 64篇 |
2014年 | 75篇 |
2013年 | 284篇 |
2012年 | 108篇 |
2011年 | 119篇 |
2010年 | 76篇 |
2009年 | 64篇 |
2008年 | 89篇 |
2007年 | 111篇 |
2006年 | 72篇 |
2005年 | 81篇 |
2004年 | 79篇 |
2003年 | 58篇 |
2002年 | 58篇 |
2001年 | 37篇 |
2000年 | 29篇 |
1999年 | 35篇 |
1998年 | 26篇 |
1997年 | 19篇 |
1996年 | 20篇 |
1995年 | 13篇 |
1994年 | 13篇 |
1993年 | 10篇 |
1992年 | 26篇 |
1991年 | 16篇 |
1990年 | 20篇 |
1989年 | 16篇 |
1988年 | 15篇 |
1987年 | 17篇 |
1986年 | 17篇 |
1985年 | 14篇 |
1984年 | 18篇 |
1983年 | 18篇 |
1982年 | 12篇 |
1981年 | 20篇 |
1980年 | 18篇 |
1979年 | 13篇 |
1978年 | 10篇 |
1977年 | 12篇 |
1976年 | 10篇 |
1975年 | 16篇 |
1974年 | 15篇 |
1973年 | 18篇 |
排序方式: 共有2227条查询结果,搜索用时 0 毫秒
961.
962.
Reremoana F. Theodore John M.D. Thompson Karen E. Waldie Clare Wall David M.O. Becroft Elizabeth Robinson Chris J. Wild Phillipa M. Clark Ed A. Mitchell 《Intelligence》2009,37(5):506-513
The association between intelligence and diet at 3.5 and 7 years was examined in 591 children of European descent. Approximately half of the children were born small-for-gestational age (birth weight ≤ 10th percentile). The relationship between IQ and diet (measured by food frequency) was investigated using multiple regression analyses. Eating margarine at least daily was associated with significantly lower IQ scores at 3.5 years in the total sample and at 7 years in SGA children. For all children, eating the recommended daily number of breads and cereals was associated with significantly higher IQ scores at 3.5 years, and those who ate fish at least weekly had significantly higher IQ scores at 7 years than those who did not. The consumption of fish, breads and cereals commeasurable with nutritional guidelines may be beneficial to children's cognitive development. In contrast, consuming margarine daily was associated with poorer cognitive functioning. Further research is needed to identify the nutrients that may underlie this association. 相似文献
963.
In the present study, we used fMRI to assess patients suffering from post-traumatic stress disorder (PTSD) or depression, and trauma-exposed controls, during an episodic memory retrieval task that included non-trauma-related emotional information. In the study phase of the task neutral pictures were presented in emotional or neutral contexts. Participants were scanned during the test phase, when they were presented with old and new neutral images in a yes/no recognition memory task. fMRI results for the contrast between old and new items revealed activation in a predominantly left-sided network of cortical regions including the left middle temporal, bilateral posterior cingulate, and left prefrontal cortices. Activity common to all three groups when correctly judging pictures encoded in emotional contexts was much more limited. Relative to the control and depressed groups the PTSD group exhibited greater sensitivity to correctly recognised stimuli in the left amygdala/ventral striatum and right occipital cortex, and more specific sensitivity to items encoded in emotional contexts in the right precuneus, left superior frontal gyrus, and bilateral insula. These results are consistent with a substantially intact neural system supporting episodic retrieval in patients suffering from PTSD. Moreover, there was little indication that PTSD is associated with a marked change in the way negatively valenced information, not of personal significance, is processed. 相似文献
964.
965.
Recent large-scale survey research has raised serious concerns in both the counselling community and the mass media about the ways in which counsellors work with lesbian, gay and bisexual (LGB) clients. The current questionnaire-based research focused on client experiences of their own, and their counsellor's, self-disclosures of sexuality. Most clients did not require counsellor disclosure. However, failure of the counsellor to disclose could result in problems and assumptions being made by the client. We conclude that LGB awareness is improving, but there is still much need for training in this area to challenge limiting assumptions by some counsellors and to avoid the need for clients to educate them. 相似文献
966.
Partai Keadilan Sejahtera (PKS, The Justice and Prosperity Party) is the largest Islamist political party in Indonesia. It has roots in the religious and political and religious teachings of the Muslim Brotherhood and promotes what Oliver Roy calls "deculturized religion." The party can be understood as the political component of a larger social movement that seeks to transform Indonesian society and culture in ways that would establish Shari'ah as social, if not political, reality. It is also committed to the electoral process and to working inside the Indonesian political system in a more general sense. Until recently, the PKS has dismissed local modes of Muslim practice and much of Indonesian culture as "un-Islamic." The extent of the party's transformative agenda is unclear for three reasons: it shares the Muslim Brotherhood's gradualist approach, it is less than transparent about its goals, and it is divided into purist or "Justice" and pragmatic or "Prosperity" factions. The leadership of the Prosperity faction is currently ascendant and is attempting to reach beyond its Islamist base by sponsoring musical and dramatic performances it hopes will appeal to Muslims devoted to Javanese and other Indonesian cultural traditions. Ethnographic and web-based research indicate that these efforts are greeted with considerable suspicion. 相似文献
967.
Craske MG Lang AJ Rowe M DeCola JP Simmons J Mann C Yan-Go F Bystritsky A 《Journal of abnormal psychology》2002,111(1):53-62
This study examined the role of presleep attributions about physiological events during sleep in nocturnal panic attacks. Patients who regularly experienced nocturnal panic were physiologically monitored as audio signals were presented during sleep. They were randomly assigned to 1 of 3 conditions: expected, in which signals of intense physiological changes were expected; unexpected, in which signals of intense physiological changes were not expected; or control, involving distinctly different signals unrelated to physiological responses. The unexpected condition led to substantially more self-reported distress and panic attacks. The experimental conditions did not elicit different autonomic reactions, but those who panicked showed stronger physiological responses than those who did not panic. The findings are consistent with a cognitive model of nocturnal panic attacks. 相似文献
968.
Kathy M. Evans Marva J. Larrabee 《Journal of multicultural counseling and development》2002,30(1):21-39
The need for all counselor trainees to simultaneously acquire the Multicultural Counseling Competencies and the revised Career Counseling Competencies is discussed, and the interface between them is examined. The authors recommend the development of simulation and technology resources so that both sets of competencies can be implemented for ongoing learning in counselor education. La necesidad que todos los estudiantes de consejería adquieran simultaneamente las Competencias de Consejería Multicultural y las competencias revisadas de la Consejería sobre Carreras, es discutida. La relación entre ambas competencias es examinada. Los autores recomiendan el desarrollo de recursos para simular y el uso de la tecnología para que ambos conjuntos de competencias sean implementadas para el aprendizaje progresivo en la educación consejeros. 相似文献
969.
Cruess DG Petitto JM Leserman J Douglas SD Gettes DR Ten Have TR Evans DL 《CNS spectrums》2003,8(1):52-58
Can psychological factors, such as depression, affect human immunodeficiency virus progression? HIV infection is viewed as a chronic illness in which those infected often confront a number of emotional challenges and physical health and disease-related issues. Over the past 20 years, there has been increasing evidence that depression and other mood-related disturbances are commonly observed among HIV-positive individuals. There is also mounting data showing that depressive symptoms might further impact upon specific elements of immune system functioning and influence quality of life and health status. This paper will highlight studies examining the prevalence of depression during HIV infection and review some of the evidence examining the impact of depressive symptoms on immune function and HIV disease progression. 相似文献
970.
Payne TJ Chen CI Baker CL Shah SN Pashos CL Boulanger L 《Psychology of addictive behaviors》2012,26(3):644-648
Tobacco use remains the leading cause of preventable death. The outpatient medical clinic represents an important venue for delivering evidence-based interventions to large numbers of tobacco users. Extensive evidence supports the effectiveness of brief interventions. In a retrospective database analysis of 11,827 adult patients captured in the 2005 National Ambulatory Medical Care Survey (of which 2,420 were tobacco users), we examined the degree to which a variety of patient demographic, clinical and physician-related variables predict the delivery of tobacco counseling during a routine outpatient visit in primary care settings. In 2005, 21.7% of identified tobacco users received a tobacco intervention during their visit. The probability of receiving an intervention differed by gender, geographic region and source of payment. Individuals presenting with tobacco-related health conditions were more likely to receive an intervention. Most physicians classified as specialists were less likely to intervene. The provision of tobacco intervention services appears to be increasing at a modest rate, but remains well below desirable levels. It is a priority that brief interventions be routinely implemented to reduce the societal burden of tobacco use. (PsycINFO Database Record (c) 2012 APA, all rights reserved). 相似文献