全文获取类型
收费全文 | 3707篇 |
免费 | 300篇 |
国内免费 | 10篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 106篇 |
妇产科学 | 192篇 |
基础医学 | 240篇 |
口腔科学 | 34篇 |
临床医学 | 903篇 |
内科学 | 282篇 |
皮肤病学 | 21篇 |
神经病学 | 470篇 |
特种医学 | 65篇 |
外科学 | 130篇 |
综合类 | 161篇 |
一般理论 | 5篇 |
预防医学 | 1151篇 |
眼科学 | 4篇 |
药学 | 224篇 |
2篇 | |
中国医学 | 10篇 |
肿瘤学 | 15篇 |
出版年
2024年 | 3篇 |
2023年 | 101篇 |
2022年 | 75篇 |
2021年 | 128篇 |
2020年 | 205篇 |
2019年 | 185篇 |
2018年 | 174篇 |
2017年 | 180篇 |
2016年 | 186篇 |
2015年 | 136篇 |
2014年 | 226篇 |
2013年 | 478篇 |
2012年 | 154篇 |
2011年 | 175篇 |
2010年 | 135篇 |
2009年 | 152篇 |
2008年 | 158篇 |
2007年 | 150篇 |
2006年 | 170篇 |
2005年 | 117篇 |
2004年 | 114篇 |
2003年 | 99篇 |
2002年 | 86篇 |
2001年 | 76篇 |
2000年 | 72篇 |
1999年 | 50篇 |
1998年 | 46篇 |
1997年 | 33篇 |
1996年 | 28篇 |
1995年 | 21篇 |
1994年 | 20篇 |
1993年 | 6篇 |
1992年 | 7篇 |
1991年 | 11篇 |
1990年 | 9篇 |
1989年 | 3篇 |
1988年 | 8篇 |
1986年 | 4篇 |
1985年 | 4篇 |
1984年 | 2篇 |
1983年 | 6篇 |
1981年 | 5篇 |
1980年 | 5篇 |
1978年 | 4篇 |
1977年 | 2篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
排序方式: 共有4017条查询结果,搜索用时 198 毫秒
21.
22.
A. K. Goenjian L. M. Najarian R. S. Pynoos A. M. Steinberg P. Petrosian S. Setrakyan L. A. Fairbanks 《Acta psychiatrica Scandinavica》1994,90(3):214-221
This study evaluated the severity and symptom profile of posttraumatic stress reactions of 202 adults exposed in 1988 to political violence in Azerbaijan and/or the earthquake in Armenia. High rates of severe posttraumatic stress reactions were found among the most highly exposed individuals, irrespective of the type of trauma. There was no difference in symptom profile for subjects exposed to earthquake versus violence. These similarities in severity and symptom profile may be attributable to common features of the exposures, which included experiencing life-threat and witnessing injury, mutilation and death. Recent prior exposure to violence contributed to the severity of reaction to the earthquake. The high rates of chronic and severe posttraumatic stress reactions in Armenia constitute a major public mental health problem. 相似文献
23.
This paper examines young African school children's understanding of HIV and AIDS. Based on focus group interviews with children aged 7–8 in KwaZulu-Natal province, South Africa, it explores the ways in which gender and sexuality feature in their responses to the disease. Data were collected between 2003 and 2004 through 26 focus groups involving 55 boys and 64 girls. The paper argues that younger children are active agents in giving meaning to the disease. Their agency is negotiated within complex social processes involving sexual violence, highly unequal gender/age inequalities, but also sexual expression. Those expressions are subsumed however under a regime of violence and fear catapulting men, albeit with contestation, as chief vectors in the spread of the disease and a source of girls' anxieties. Children's responses to the disease are the effects of material, symbolic and discursive forces effectively constraining the opportunities available to them and creating patterns of vulnerability especially for young girls. Interventions aimed at scaling up efforts to address young children responses to the disease must be situated in parallel efforts to end poverty, sexual violence and pervasive gender inequalities in order to foster more comprehensively the exercise of young children's agency. 相似文献
24.
Beryce W. MacLennan Ph.D. FAPA DFAGPA 《Journal of Child and Adolescent Group Therapy》1994,4(4):243-250
Many inner-city children, living in resource-poor violent communities, have low self esteem, deficient social skills and do
not know how to prevent and cope with provocation and conflict. A group therapy model is described for assisting elementary
school children deal with these problems. Groups were led by volunteer mental health professionals in two inner-city elementary
schools. 相似文献
25.
Many different variables have been associated with suicidal behavior as well as with violent behavior. This study was designed to test a model that attempts to relate such variables to violence and suicide risk. Sixty psychiatric patients were evaluated and divided into suicidal and nonsuicidal groups and then into violent and nonviolent groups. Scores on suicide risk, violence risk, anxiety, anger, impulsivity and mood were then compared between these groups. In a second analysis, scores on suicide risk and violence risk were correlated with all the other variables. Anxiety and impulsivity were found to strongly correlate with suicide risk. Angry and resentful mood correlated with violence risk; trait anxiety correlated negatively with violence risk. The results contribute further insight into the authors' two-stage model of countervailing forces. 相似文献
26.
Effecting Change in Maltreating Fathers: Critical Principles for Intervention Planning 总被引:2,自引:0,他引:2
Although fathers perpetrate a significant proportion of child maltreatment, the intervention needs of abusive and neglectful fathers have not been adequately addressed or researched. This paper argues that well-designed treatment has the potential to benefit men, their children, and their families. However, the treatment needs of maltreating and at-risk fathers are unique, and programs must be designed accordingly. Based on the integration of parenting, child abuse, change promotion, and batterer treatment literatures, five principles to guide intervention with maltreating fathers are advanced: (a) overly controlling behavior, a sense of entitlement, and self-centered attitudes are primary problems of abusive fathers; thus, the development of child-management skills should not be an initial focus of intervention; (b) abusive fathers are seldom initially ready to make changes in their parenting; (c) fathers' adherence to gender-role stereotypes also contributes to their maltreatment of children; (d) the relationship between abusive fathers and the mothers of their children requires special attention; and (e) because abusive fathers have eroded children's emotional security, the need to rebuild trust will affect the pace of change and potential impact of relapse on the child. These principles are contrasted with the supportive and child-management goals of conventional group parenting programs, and the implications for providing service to fathers are considered. 相似文献
27.
The manifestation of diurnal periodicity and the extent of its control by the photoperiod was assessed in three predation defense reactions which constitute either components or outcomes of a predator-prey interaction sequence. Two-hundred White Leghorn chicks were reared from hatching for one week in either 24L or 12L and then tested at one of two clock hours previously demonstrated to define peak and trough response for one of the components. Putative evidence was found for an endogenous source of the periodicity manifested in all reactions. Maintenance schedule did not entrain the periodicity, but simple room entry and handling elicited anti-predator reactions, the extent of which varied as a function of clock hour. A general model of predation defense behavior was proposed. 相似文献
28.
观看电视暴力对青少年攻击行为的影响 总被引:12,自引:2,他引:12
目的 :探讨观看电视暴力对青少年攻击行为的影响。方法 :采用问卷对 2 5 9名初中生进行了观看暴力镜头的频次、对暴力的认同态度、观看暴力镜头的情绪反应、攻击行为倾向等五个方面的调查和分析。结果 :青少年观看暴力镜头频次和兴奋水平程度越高 ,情绪宣泄越少 ,表现出攻击行为倾向越多 ;男生的攻击行为比女生多 ;青少年的攻击行为随年级升高而降低 ;工读学校学生比普通学校学生表现出更多的攻击行为。结论 :过多地观看电视暴力可能导致青少年攻击行为倾向增加 ,且攻击行为与观看电视暴力引起的情绪反应有关。 相似文献
29.
30.
陈练魏瑗赵扬玉 《中国卫生质量管理》2022,(5):006-9
通过文献回顾,对世界卫生组织产科质量指标体系、英国产科质量指标体系、美国产科质量指标体系、欧洲围产期保健计划、丹麦产科质量指标体系及我国的产科质量指标体系现状进行总结。认为我国产科质量指标体系缺乏最佳的指标变化趋势及期望达到的目标值,缺少基于产科质量指标进行质量改进的研究和证据,尚无基于产科质量指标体系的信息化质控平台。对此,建议探索产科质量控制指标的适宜标准值,建立质量指标和医疗质量评价的关联性,拓展指标体系内涵,加快信息化建设。 相似文献