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   3003篇
  免费   294篇
  国内免费   60篇
耳鼻咽喉   8篇
儿科学   25篇
妇产科学   72篇
基础医学   201篇
口腔科学   14篇
临床医学   227篇
内科学   197篇
皮肤病学   9篇
神经病学   202篇
特种医学   51篇
外科学   141篇
综合类   699篇
一般理论   4篇
预防医学   497篇
眼科学   37篇
药学   249篇
  7篇
中国医学   704篇
肿瘤学   13篇
  2024年   15篇
  2023年   56篇
  2022年   107篇
  2021年   134篇
  2020年   118篇
  2019年   104篇
  2018年   77篇
  2017年   141篇
  2016年   106篇
  2015年   99篇
  2014年   195篇
  2013年   232篇
  2012年   179篇
  2011年   214篇
  2010年   186篇
  2009年   173篇
  2008年   154篇
  2007年   154篇
  2006年   164篇
  2005年   111篇
  2004年   102篇
  2003年   93篇
  2002年   85篇
  2001年   64篇
  2000年   66篇
  1999年   27篇
  1998年   24篇
  1997年   26篇
  1996年   12篇
  1995年   23篇
  1994年   14篇
  1993年   12篇
  1992年   14篇
  1991年   10篇
  1990年   12篇
  1989年   6篇
  1988年   6篇
  1987年   4篇
  1986年   4篇
  1985年   10篇
  1984年   5篇
  1982年   3篇
  1981年   1篇
  1980年   2篇
  1979年   1篇
  1978年   1篇
  1977年   5篇
  1976年   2篇
  1975年   1篇
  1973年   2篇
排序方式: 共有3357条查询结果,搜索用时 10 毫秒
101.
102.
近代学者对民商法学之研究,就纵向角度而言,数量众多、视角多元;就横向角度而言,涌现出具有时代特征的若干代表作,如陈瑾昆的《民法通义总则》、戴修瓒的《民法债编总论》以及王宠惠的《比较民法概要》。这些著作构建了近代民商法学科,开启了现代民商法学的发展。总体而言,近代民商法学史具有三大特征:研究集中于基础理论问题,注重总则部分的探究;实体法和具体制度成为研究热点,程序法成果较少;国别研究、比较法研究是其一大特色。  相似文献   
103.
Between 1906 and 1917 China (under the Imperial and then Republican regimes) enacted a highly effective intervention to suppress the production of opium. Evidence from British Foreign Office records suggest that the intervention was centred, in many areas, upon a highly repressive incarnation of law enforcement in which rural populations had their property destroyed, their land confiscated and/or were publically tortured, humiliated and executed. Crops were forcefully eradicated and resistance was often brutally suppressed by the military. As few farmers received compensation or support for alternative livelihood creation the intervention pushed many deeper into poverty. Importantly, the repressive nature of the opium ban appears to have been a contributing factor to the fragmentation of China, highlighting the counter-productivity of repressive interventions to reduce drug crop production.  相似文献   
104.
《Substance use & misuse》2013,48(4):364-374
Police are key stakeholders in cities considering supervised consumption site (SCS) implementation. We examine police perceptions of SCSs using data collected between 2008 and 2010. Data from interviews and focus groups conducted with police officers of varied ranks (n = 18) in Ottawa and Toronto, Canada, were analyzed using thematic analyses. Participants opposed SCS implementation in their respective cities. The police views we heard invoke values and perspectives on evidence that differ from those used in research. Whether these divergent frameworks are reconcilable is a question for future research. Study limitations are noted. The Ontario HIV Treatment Network funded the study.  相似文献   
105.
In order to explore the effect of gaze orientation on whole-body rotation perception, ten healthy participants were rotated in the dark while fixating on a visual target located either straight ahead or 15° to the right. A vestibular-memory contingent saccade paradigm was used to estimate the rotation perception. The results attest to the participants’ ability to accurately perceive their rotation, based solely on the intrinsic inputs (somesthetic and mainly vestibular), since the correlation between the imposed body rotation and the saccade amplitude was significant and positive. However, the rotation perception was less accurate and of lesser magnitude when the gaze was deviated in the opposite direction to the rotation than when it was either straight ahead or deviated in the direction of the rotation. This can be interpreted as the perceptual equivalent of Alexander’s law.  相似文献   
106.
为适应近代中国的救亡需求,新法家主要代表常燕生融合西方进化论学说和中国古代法家的法治思想,创生出有机生物史观和国家主义法治思想。以此为基础,常燕生大力提倡文化启蒙,主张建构近代民族国家,呼吁走渐进改良式的救亡道路。常燕生的思想因而带有明显的济世救亡的工具主义特质。批判性地反思其缺陷和不足,镜鉴其菁华,必大有益于当世“法治中国”建设。  相似文献   
107.
While public health remains the primary site of authority for preventing HIV transmission, recent shifts in the biopolitics of HIV have heightened tensions in the institutional and discursive relations through which the sexual lives of people living with HIV and broader HIV epidemics are regulated. Most notably, over the past decade, criminal justice responses to HIV have gained considerable traction. The growing use of the criminal law to regulate perceived HIV transmission risks has occasioned considerable controversy among people living with HIV, community-based AIDS organizations, health-care providers, public health authorities, prosecutors, judges, and the legal community. This article introduces a special section of Critical Public Health focused on the public health implications of HIV criminalization. The article reviews past and current work on the topic, situates the contributions made by the articles published in the special section, and outlines directions for future inquiry.  相似文献   
108.
We present qualitative research findings about how perceptions of criminal prosecutions for the transmission of HIV interact with the provision of high-quality HIV health and social care in England and Wales. Seven focus groups were undertaken with a total of 75 diverse professionals working in clinical and community-based services for people with HIV. Participants’ understanding of the law in this area was varied, with many knowing the basic requirements for a prosecution, yet lacking confidence in the best way to communicate key details with those using their service. Prosecutions for HIV transmission have influenced, and in some instances, disrupted the provision of HIV services, creating ambivalence and concern among many providers about their new role as providers of legal information. The way that participants approached the topic with service users was influenced by their personal views on individual and shared responsibility for health, their concerns about professional liability and their degree of trust in non-coercive health promotion approaches to managing public health. These findings reveal an underlying ambivalence among many providers about how they regard the interface between criminal law, coercion and public health. It is also apparent that in most HIV service environments, meaningful exploration of practical ethical issues is relatively rare. The data presented here will additionally be of use to managers and providers of HIV services in order that they can provide consistent and confident support and advice to people with HIV.  相似文献   
109.
The authors examined the institutional challenges that underrepresented minority (URM) faculty perceive in higher education with use of family support workplace policies. Evidence reveals that faculty encounter differences in access to information and explanations of how to use workplace–family statutes. A qualitative study of 58 URM faculty members highlighted five particularly notable themes: (a) faculty perceptions of how the institution views their family caregiving responsibilities, (b) inadequate compensation matters in the utilization of formal policies, (c) informal policies are often inaccessible and invisible, (d) social networks affect the inclusiveness of work–family institutional practices, and (e) fear of being regarded as a “red flag” constrains decisions regarding the use of policies. Given the push in higher education to diversify its faculty ranks, if administrators are to successfully implement diversity, equity, and inclusion and retain URM faculty, institutions need to pay particular attention to how URM faculty experience the academic climate regarding work–family balance.  相似文献   
110.

Context

In keeping with the Patient Protection and Affordable Care Act, Congress revised the law related to workplace wellness programs. In June 2013, the Departments of Treasury, Labor, and Health and Human Services passed the final regulations, updating their 2006 regulatory framework. Participatory programs that reward the completion of a health risk assessment are now the most common type of wellness program in the United States. However, legal and ethical concerns emerge when employers utilize incentives that raise questions about the voluntariness of such programs. At issue is that under the Americans with Disabilities Act (ADA) of 1990, employers cannot require health-related inquiries and exams.

Methods

To analyze the current interpretation of the ADA, I conducted research on both LexisNexis and federal agency websites. The resulting article evaluates the differences in the language of Congress''s enabling legislation and the federal departments’ regulations and how they may conflict with the ADA. It also reviews the federal government''s authority to address both the legal conflict and ethical concerns related to nonvoluntary participatory programs.

Findings

Employers’ practices and the federal departments’ regulations conflict with the current interpretation of the ADA by permitting employers to penalize employees who do not complete a health risk assessment. The departments’ regulations may be interpreted as conflicting with Congress''s legislation, which mentions penalties only for health-contingent wellness programs. Furthermore, the regulatory protections for employees applicable to health-contingent wellness programs do not apply to participatory programs.

Conclusions

Either Congress or the federal agencies should address the conflict among employers’ practices, the wellness regulations, and the ADA and also consider additional protections for employees. Employers can avoid ethical and legal complications by offering voluntary programs with positive incentives.  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