全文获取类型
收费全文 | 55733篇 |
免费 | 2331篇 |
国内免费 | 21篇 |
出版年
2020年 | 675篇 |
2019年 | 791篇 |
2018年 | 1129篇 |
2017年 | 1139篇 |
2016年 | 1194篇 |
2015年 | 854篇 |
2014年 | 1032篇 |
2013年 | 4822篇 |
2012年 | 1927篇 |
2011年 | 1927篇 |
2010年 | 1153篇 |
2009年 | 1183篇 |
2008年 | 1662篇 |
2007年 | 1628篇 |
2006年 | 1490篇 |
2005年 | 1234篇 |
2004年 | 1277篇 |
2003年 | 1221篇 |
2002年 | 1160篇 |
2001年 | 1921篇 |
2000年 | 1795篇 |
1999年 | 1341篇 |
1998年 | 616篇 |
1997年 | 528篇 |
1996年 | 606篇 |
1995年 | 549篇 |
1994年 | 541篇 |
1993年 | 526篇 |
1992年 | 1105篇 |
1991年 | 1016篇 |
1990年 | 995篇 |
1989年 | 957篇 |
1988年 | 934篇 |
1987年 | 862篇 |
1986年 | 857篇 |
1985年 | 903篇 |
1984年 | 729篇 |
1983年 | 627篇 |
1979年 | 758篇 |
1978年 | 562篇 |
1975年 | 601篇 |
1974年 | 679篇 |
1973年 | 701篇 |
1972年 | 604篇 |
1971年 | 561篇 |
1970年 | 483篇 |
1969年 | 478篇 |
1968年 | 609篇 |
1967年 | 530篇 |
1966年 | 506篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
271.
In contrast to theoretical discussions about potential professional liability of clinical ethicists, this report gives the results of empirical data gathered in a national survey of clinical medical ethicists. The report assesses the types of activities of clinical ethicists, the extent and types of their professional liability coverage, and the influence that concerns about legal liability has on how they function as clinical ethicists. In addition demographic data on age, sex, educational background, etc. are reported. The results show that while nearly one third (28.9%) of the ethicists regularly make recommendations about patient care, only 10.8% of them regularly make entries in the medical record; only approximately half (53.0%) of them are covered by professional liability (malpractice) insurance; and the vast majority (84.3%) of them say that concerns about legal liability do not influence the way they function as clinical ethicists. 相似文献
272.
A unique relationship exists between physicians and philosophers — one that expands on the constructive potential of the liaison between physicians and, for example, theologians, on the one hand, or, social workers on the other. This liaison should focus in the scientific aspects of medicine, not just the ethical aspects. Philosophers can provide physicians with a perspective on both the philosophy and the history of medicine through the ages — a sense of how medicine has adapted to the social cultural and ethical needs of each period. This perspective, while emphasizing medicine asscience, should not be limited to matters of methodology, or to criteria for distinguishing science from other intellectual pursuits, but should be concerned also with the history, sociology and politics of science. Both physicians and philosophers stand to gain from a strengthening of their active liaison now as never before; but most of all, the public will be the beneficiary. 相似文献
273.
Erich H. Loewy M.D. 《The Journal of medical humanities》1988,9(2):135-142
This paper examines the reactions of physicians and other health-professionals when they become involved in decisions about the death of their patients. The way people understand the condition of death has a profound influence on attitudes towards death and dying issues. Four traditional views of death are explored. The problem that physicians have in helping patients die (be it by hastening death through pain control, assisting patients in suicide or by more active means) is analyzed. Physicians, in dealing with such patients, must be mindful of their own, and their patients beliefs as well as mindful of the community in which such dying takes place. They must try to reconcile these often divergent views but can neither paternalistically deny patients their rational will, hide themselves behind an appeal to the law or go against their own deeply held moral views. When such views cannot be reconciled, compassionate transfer to a more compatible physician may be necessary. 相似文献
274.
275.
276.
W. J. Jacobs M. Buttrick D. Kennedy 《Integrative psychological & behavioral science》1988,23(1):29-34
The present study outlines a rapid and sensitive on-the-baseline conditional emotional response (CER) procedure. Using rats as the experimental subject, the method detects delay conditioning, incubation, extinction and spontaneous recovery. In addition, the method detects conditional responding using electric shock ranging from 0.23 to 0.50 mA as the unconditional stimulus. Because of its speed and sensitivity, the method shelters the subject from unnecessary long-term deprivation and pain. 相似文献
277.
Many studies directed at demonstrating perception without awareness have relied on the dissociation paradigm. Although the logic underlying this paradigm is relatively straightforward, definitive results have been elusive in the absence of any general consensus as to what constitutes an adequate measure of awareness. We propose an alternative approach that involves comparisons of the relative sensitivity of comparable direct and indirect indexes of perception. The only assumption required by the proposed approach is that the sensitivity of direct discriminations to relevant conscious information is greater than or equal to the sensitivity of comparable indirect discriminations. The proposed approach is illustrated through an evaluation of Avant and Thieman’s (1985) recent claim that an indirect measure of perception based on judgments of apparent visual duration provides a more sensitive indicator of perception than does a direct measure based on forced-choice recognition. Contrary to this claim, when direct and indirect indexes are measured under comparable conditions, an indirect measure based on judgments of perceived duration provides a less sensitive index of perceptual processing than do comparable direct measures. The proposed approach provides a general conceptual/methodological framework for using the dissociation paradigm in studies directed at establishing unconscious processes. 相似文献
278.
This study investigated social sensitivity and self-concept in students with learning disabilities (LD) and their non-learning-disabled (non-LD) peers. Thirty students each from public junior and senior high schools and a community college participated in the study; at each grade level, half were identified as learning disabled and half experienced no learning problem. Students were individually assessed in 30-minute interviews for their accuracy in interpreting the thoughts and feelings of actors in tape-recorded stories depicting two adults in happy angry, anxious, and sad interactions. A questionnaire assessing four dimensions of self-concept in learning situations (motivation, task orientation, problem-solving ability, and class membership) was also administered. LD students at all grade levels were significantly less accurate at interpreting social situations than were their non-LD peers, and had significantly lower self-concepts. These results support the need for remediation efforts specifically aimed at social skills for overcoming social deficits in adulthood. 相似文献
279.
Two projective techniques were employed to explore the psychological characteristics of teenage mothers who were found, in a previous study, to have experienced more traumatic childhoods than the nonmother control group. Part I, presented here, investigated ego development using the Loevinger Sentence Completion Test. (Part II, responses to a set of TAT cards, will appear in a subsequent issue of Adolescence.) In comparison with the nonmothers, teenage mothers demonstrated more mature ego development. This is in distinct contrast with most reports in the literature, and the ramifications of these results are discussed. In addition, content analyses of the responses to the Sentence Completion Test confirm the highly involved mother-daughter and negative father-daughter relationships found in the previous study with this sample. 相似文献
280.
This paper deals with girls aged 13 to 21 who have run away from home. Social workers who work with such girls point out that they are not a homogeneous population and that their motives can be very different. This study divides their motives for running away into two types, "running from" and "running to," and describes the specific personality traits associated with each. Findings indicate that girls who "run to" are younger, more impulsive, have an internal locus of control and a history of more runaways and longer periods of staying away from home. Girls who "run from," on the other hand, are older, more reflective, have an external locus of control and a history of fewer runaways and shorter periods away from home. 相似文献