全文获取类型
收费全文 | 13197篇 |
免费 | 238篇 |
国内免费 | 192篇 |
出版年
2015年 | 37篇 |
2013年 | 37篇 |
2012年 | 1238篇 |
2011年 | 1421篇 |
2010年 | 362篇 |
2009年 | 186篇 |
2008年 | 1063篇 |
2007年 | 1066篇 |
2006年 | 1013篇 |
2005年 | 793篇 |
2004年 | 746篇 |
2003年 | 678篇 |
2002年 | 631篇 |
2001年 | 421篇 |
2000年 | 493篇 |
1999年 | 233篇 |
1998年 | 83篇 |
1997年 | 37篇 |
1996年 | 60篇 |
1995年 | 46篇 |
1994年 | 82篇 |
1993年 | 100篇 |
1992年 | 105篇 |
1991年 | 117篇 |
1990年 | 98篇 |
1989年 | 98篇 |
1988年 | 108篇 |
1987年 | 123篇 |
1986年 | 91篇 |
1985年 | 116篇 |
1984年 | 116篇 |
1983年 | 139篇 |
1982年 | 97篇 |
1981年 | 92篇 |
1980年 | 78篇 |
1979年 | 89篇 |
1978年 | 78篇 |
1966年 | 50篇 |
1965年 | 132篇 |
1964年 | 106篇 |
1963年 | 127篇 |
1962年 | 54篇 |
1958年 | 120篇 |
1957年 | 112篇 |
1956年 | 75篇 |
1955年 | 46篇 |
1954年 | 30篇 |
1953年 | 35篇 |
1952年 | 35篇 |
1951年 | 30篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
251.
252.
253.
A review of the literature was conducted to better understand the (potential) role of mental health professionals in physician-assisted suicide. Numerous studies indicate that depression is one of the most commonly encountered psychiatric illnesses in primary care settings. Yet, depression consistently goes undetected and undiagnosed by nonpsychiatrically trained primary care physicians. Noting the well-studied link between depression and suicide, it is necessary to question giving sole responsibility of assisting patients in making end-of-life treatment decisions to these physicians. Unfortunately, the use of mental health consultation by these physicians is not a common occurrence. Greater involvement of mental health professionals in this emerging and debated area is advocated. Beyond describing mental health professionals' role in the assessment of patient competency or decision making capacity, other areas of potential involvement are described. A discussion of ethical principles relevant to this area follows, along with comments on the training necessary to adequately serve patient needs. 相似文献
254.
对人的尊严的挑战——试论P.辛格的优先权——实利主义 总被引:2,自引:0,他引:2
一个社会对其成员重视和承认的程度,首先表现为这个社会如何对待其成员中的弱者和受歧视的人。而在每个社会遭受歧视的人中,无疑也包括那些由于先天或后天的缘故患有精神上或肉体上的疾病而需要特别照顾的人。1989年以来,首先是这一社会群体的代言人,对他们的遭遇提出了强烈的抗议。而他们的抗议,又引发了德国舆论界对澳大利亚哲学家彼得·辛格的关注。特别是辛格关于可以对残疾人(既包括先天不足的婴儿,也包括老年人)施行强制性安乐死的论述,点燃了论战的烽火,更激起了一部分人的强烈抗议。残疾人的代盲人指出,辛格的“实用伦理学”不仅是对“残疾人”,而且从根本上讲是对人的错误认识。 相似文献
255.
256.
The development of a 42-item measure of a number of personality features derived from the theory of psychological reversals is reported. These personality features are (a) the extent to which a person is serious-minded, (b) the extent to which a person plans ahead and organizes himself in the pursuit of goals, and (c) the extent to which a person seeks to avoid arousal. These features together are seen to constitute a personality trait which is described as telic dominance. Data concerning the test-retest reliability, criterion-related and construct validity of the Telic Dominance Scale are presented, together with the scale and scoring key. 相似文献
257.
Schnelle JF Kirchner RE Macrae JW McNees MP Eck RH Snodgrass S Casey JD Uselton PH 《Journal of applied behavior analysis》1978,11(1):11-21
The significance of a helicopter patrol procedure directed toward prevention of home burglaries was evaluated from experimental and cost-benefit perspectives. The helicopter patrolled one city zone from 9 a.m. to 5 p.m. for two 12-day periods. Each 12-day period was separated by a baseline period in which only normal patrol-car levels were maintained. Significantly reduced burglary levels during the intervention periods, compared to baseline periods, documented the experimental significance of the helicopter procedure. The cash costs of implementing the patrol procedure were compared to two estimates of the resulting cash benefits. This latter cost-benefit analysis was supplemented by a discussion of the intangible costs and benefits of the helicopter procedure. Taken together, these analyses documented that the marginal costs of the helicopter intervention were exceeded by all estimates of benefits. 相似文献
258.
Male and female college students answered standard questions about the women's liberation movement on three occasions. A set of target words was embedded in the questions, with one set used in Sessions 1 and 3, and a synonymous, but different set used in Session 2. The relative frequencies of usage of a given target word were directly related to whether the questions for that session contained the word. The results supported the hypothesis of echoics as proposed in Skinner's theory of verbal behavior. 相似文献
259.
在六十年代,资本主义用以攻击马克思列宁主义的新手法,特别清楚地表现在所谓“新左派”运动这种独特的左倾机会主义思想体系中。这种运动在1968年法国五一六月事件中表现得最为明显。在此之前不久,它也表现在六十年代左翼学生运动中,这个运动开始于美国、后来波及西欧许多资本主义国家,还传播到日本。对六十年代思想斗争所作的分析令人信服地证明,这种左倾机会主义的主要思想根源之一,就是所 相似文献
260.