全文获取类型
收费全文 | 2015篇 |
免费 | 181篇 |
国内免费 | 109篇 |
专业分类
2305篇 |
出版年
2024年 | 15篇 |
2023年 | 55篇 |
2022年 | 34篇 |
2021年 | 54篇 |
2020年 | 127篇 |
2019年 | 118篇 |
2018年 | 106篇 |
2017年 | 108篇 |
2016年 | 92篇 |
2015年 | 70篇 |
2014年 | 119篇 |
2013年 | 254篇 |
2012年 | 50篇 |
2011年 | 65篇 |
2010年 | 57篇 |
2009年 | 66篇 |
2008年 | 79篇 |
2007年 | 98篇 |
2006年 | 88篇 |
2005年 | 80篇 |
2004年 | 62篇 |
2003年 | 91篇 |
2002年 | 76篇 |
2001年 | 76篇 |
2000年 | 39篇 |
1999年 | 42篇 |
1998年 | 18篇 |
1997年 | 34篇 |
1996年 | 16篇 |
1995年 | 28篇 |
1994年 | 13篇 |
1993年 | 20篇 |
1992年 | 4篇 |
1991年 | 3篇 |
1990年 | 3篇 |
1989年 | 3篇 |
1988年 | 2篇 |
1987年 | 3篇 |
1984年 | 5篇 |
1983年 | 1篇 |
1982年 | 3篇 |
1981年 | 5篇 |
1980年 | 4篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1977年 | 6篇 |
1975年 | 4篇 |
1974年 | 2篇 |
排序方式: 共有2305条查询结果,搜索用时 0 毫秒
131.
流行病学数据的更新表明阿尔茨海默病(A D )已成为全球健康问题。早期应用生物标志物的AD新诊断标准广泛应用和临床试验不断失败的鲜明反差提示AD治疗的艰巨性。AD和其他慢性疾病的共病研究不断深入。生活方式干预作为非药物治疗备受重视。 相似文献
132.
苏占清 《医学与哲学(人文社会医学版)》2014,35(19)
临床医疗是医院的根本使命,在权重上医疗自然重于科研.医疗实践是科研的出发点与归宿,决定了科研的基本走向.当前,科研工作受到前所未有的重视,科研作为医疗人员绩效考核的权重过大,偏离了医院的根本使命,会对科研、医疗、医护人员乃至整个社会造成伤害.SCI论文与临床关系不密切,不宜用来评价临床医师的水准.应该建立科学的考评机制,考核标准应细化、全面,对科研的奖励应适度.对于医护人员的考核应以医疗为主、科研为辅. 相似文献
133.
134.
Hanson SS 《Theoretical medicine and bioethics》2006,27(3):215-226
It is commonly assumed that persons who hold abortions to be generally impermissible must, for the same reasons, be opposed to embryonic stem cell research [ESR]. Yet a settled position against abortion does not necessarily direct one to reject that research. The difference in potentiality between the embryos used in ESR and embryos discussed in the abortion debate can make ESR acceptable even if one holds that abortion is impermissible. With regard to their potentiality, in vitro embryos are here argued to be more morally similar to clonable somatic cells than they are to in vivo embryos. This creates an important moral distinction between embryos in vivo and in vitro. Attempts to refute this moral distinction, raised in the recent debate in this journal between Alfonso Gómez-Lobo and Mary Mahowald, are also addressed. 相似文献
135.
Previous research has developed multiple indices to detect instances of insufficient effort responding (IER; Huang et al., 2015, 0.1037/a0038510). Although these techniques are largely successful, conflation between effort and insufficient effort leads to unnecessary data removal, thus warranting investigation into IER prevention strategies such as warning statements. For example, Brühlmann et al. (2020, 10.1016/j.metip.2020.100022) reported that close to 60% of participants were flagged for IER on at least one IER detection index. The current study used positive, negative, and no warning statements in two samples (MTurk and university participant pool) to examine their impact on two types of IER. Results do not support the use of warning statements to reduce IER covertly, overtly, or overall. Although slightly more university participants were flagged for IER for two of five IER indices, the remaining three indices did not differ between samples. This finding represents an important contribution to survey research literature by directly comparing samples on a variety of IER indices. Implications for survey research necessitate the examination of additional prevention strategies and sample differences in IER. 相似文献
136.
Masakuni Tagaki 《The Japanese psychological research》2021,63(4):366-379
This is the third in a series on residents' meetings (RMs) for municipal disability policymaking in Japan; members included people with disabilities (PWDs). I focused on members' meaning-making process for three community organizational goals: task, process, and relationship. Action research was employed in all three studies during my participation in RMs, which began in 2002. The present study is a follow-up on the meetings' development and covers 2013 to 2019. Meetings were divided into three phases: (a) use of the annual symposium to inform a broader audience about disability policies; (b) appreciation that PWDs can play active roles as supporters of others, especially other PWDs; and (c) recognition that contradiction and dilemma are present in attempts to provide “universal” social equipment for social minorities. The three goals were interrelated through uncertainty and vagueness of RMs; however, it enabled the members to interpret their multifaceted disability-related experiences. PWDs realized their power to help others and developed disability identities through intensive discussions, while they realized the difficulty of social acceptance of their power and the limited solidarity among PWDs. 相似文献
137.
Miller KE 《American journal of community psychology》2004,33(3-4):217-227
This paper examines the role of trust and the concept of access as they affect the relational context in which community research, and research with refugee communities in particular, is conducted. Sociologist Irving Goffman's metaphor of frontstage and backstage behavior is used to illustrate the complexity and importance of developing of relations of trust, and thereby gaining "backstage" access, in communities that are generally closed to outsiders. It is argued that gaining authentic ("backstage") access to refugee communities, as well as other communities that have developed a self-protective insularity, is essential if we are to gather data that accurately reflect the actual beliefs, feelings, and experiences of community members. The paper then examines the puzzling lack of discussion regarding issues of trust, access, and the relational context in the literature on refugee mental health. Explanations for this apparent inattention are sought in the influence of the prevailing scientific paradigm that guides most research with refugees, and that shapes the values of the field's "gatekeepers," the editors and reviewers of scholarly journals. Throughout the paper, key points are illustrated with examples drawn from the author's research with refugees from Guatemala, Bosnia, and Afghanistan. 相似文献
138.
Jarl K. Kampen 《Metaphilosophy》2020,51(1):97-110
Research communication in interdisciplinary research projects requires a way of demarcation of theory and knowledge that is easy to communicate, is inconsequential for the framework of concepts, results, and procedures within existing scientific disciplines, and abstains from trying to resolve the dispute between (neo)positivists and constructivists. A simple way of demarcation starts from the notion of language-independent and language-dependent reality. Currently, what passes for knowledge (“news”) and myth (“fake news”) depends, besides on sheer volume and frequency of the messages, increasingly on the internal consistency of (computer) language-dependent reality and decreasingly on language-independent reality. All language is instruction, and knowledge is to know which instructions (that is, theory) are predictive of a result, state, or situation in language-independent reality. Any theory that doesn’t reduce outcome space, or contains one or more empirically/physically impossible instructions, or produces wrong predictions, or falls short of demonstration is not knowledge. 相似文献
139.
140.
Sejal Parikh-Foxx Robert Martinez Stanley B. Baker Jacob Olsen 《Journal of counseling and development : JCD》2020,98(2):183-192
Grounded in Bandura’s (1997) self-efficacy theory and Savickas’s (2011) career construction theory, this study examined school counselors’ beliefs about whether they can perform specific tasks related to supporting students’ career and college readiness. A national sample of school counselors (N = 2,047) completed the School Counselor Self-Efficacy for Enhancing Student Career and College Readiness Scale (Baker, Parikh-Foxx, & Martinez, 2017). Findings from a survey research design indicated that the extent of related training and the challenges associated with implementation of career service delivery were of concern to participants. Recommendations for training, practice, and further research are presented. 相似文献