全文获取类型
收费全文 | 47093篇 |
免费 | 517篇 |
国内免费 | 4篇 |
专业分类
47614篇 |
出版年
2021年 | 223篇 |
2020年 | 381篇 |
2019年 | 420篇 |
2018年 | 3881篇 |
2017年 | 3205篇 |
2016年 | 2747篇 |
2015年 | 639篇 |
2014年 | 655篇 |
2013年 | 2425篇 |
2012年 | 1547篇 |
2011年 | 3222篇 |
2010年 | 3088篇 |
2009年 | 2066篇 |
2008年 | 2552篇 |
2007年 | 2988篇 |
2006年 | 860篇 |
2005年 | 961篇 |
2004年 | 914篇 |
2003年 | 781篇 |
2002年 | 754篇 |
2001年 | 874篇 |
2000年 | 903篇 |
1999年 | 643篇 |
1998年 | 370篇 |
1997年 | 337篇 |
1996年 | 271篇 |
1995年 | 279篇 |
1994年 | 273篇 |
1993年 | 247篇 |
1992年 | 485篇 |
1991年 | 447篇 |
1990年 | 466篇 |
1989年 | 406篇 |
1988年 | 395篇 |
1987年 | 387篇 |
1986年 | 342篇 |
1985年 | 359篇 |
1984年 | 350篇 |
1983年 | 296篇 |
1982年 | 267篇 |
1981年 | 245篇 |
1980年 | 226篇 |
1979年 | 320篇 |
1978年 | 277篇 |
1977年 | 231篇 |
1976年 | 227篇 |
1975年 | 253篇 |
1974年 | 302篇 |
1973年 | 282篇 |
1968年 | 226篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
211.
212.
ROBERT T. CARTER 《Journal of counseling and development : JCD》1990,69(1):46-50
This research explored the relationship between White racial identity attitudes and racism. Participants were 100 White students from a large midwestern university who were asked to complete the New Racism Scale and the White Racial Identity Inventory. Multiple regression analyses found that White racial identity attitudes were predictive of racism. The study, however, also found gender differences in White racial identity. Results of the study are discussed in terms of implications for developing racial awareness on college campuses. 相似文献
213.
INNATENESS, EXPERIENCE, AND MUSIC PERCEPTION 总被引:2,自引:0,他引:2
214.
Benedict T. McWhirter 《Current psychology (New Brunswick, N.J.)》1990,9(1):56-68
The Revised UCLA Loneliness Scale (R-UCLA) is described and used as a unidimensional measure of loneliness; conceptualizing
and assessing loneliness as a unitary, global experience. The present study suggests that the R-UCLA is a multidimensional
measure of loneliness that assesses more than one construct of the loneliness experience. Results of principal axis factor
analysis suggest that the R-UCLA measures three dimensions of loneliness: loneliness related to (a) “intimate others,” (b)
“social others,” and (c) the “affiliative environment.” These findings may affect the utilization of the R-UCLA in future
assessment, research, and intervention. These implications are discussed.
This article is based on the author’s master’s thesis, submitted for the Master of Counseling degree at Arizona State University. 相似文献
215.
Michael Peters 《Neuropsychology review》1990,1(2):165-183
The degree of structural and functional specialization that differentiates between upper and lower limb use in humans is quite unparalleled among primates. It is argued that less neural resources are devoted to leg and foot control than to arm and hand control, and that this aspect of lower limb innervation, together with the uniquely restricted use of the lower limb, renders lower limb function more sensitive to general neural insult. In addition, the status of leg and foot control differs from that of arm and hand control both early in life and during the later years of decline. 相似文献
216.
Abstract— In our discussion of the articles in this Special Section, we ask how well the various methods employed in these investigations can be made to converge on a common issue. We review how current evidence from positron emission tomography, studies of event-related potentials, cognitive methods, lesion studies, and network models relates to the mental processing of an ambiguous word. While many puzzles remain, we are impressed by the promising possibility of bringing these different methods together to deal with an issue central to cognition. 相似文献
217.
Michael J 《The Behavior analyst / MABA》1993,16(2):191-206
The first two books on behavior analysis (Skinner, 1938; Keller & Schoenfeld, 1950) had chapter-length coverage of motivation. The next generation of texts also had chapters on the topic, but by the late 1960s it was no longer being given much treatment in the behavior-analytic literature. The present failure to deal with the topic leaves a gap in our understanding of operant functional relations. A partial solution is to reintroduce the concept of the establishing operation, defined as an environmental event, operation, or stimulus condition that affects an organism by momentarily altering (a) the reinforcing effectiveness of other events and (b) the frequency of occurrence of that part of the organism's repertoire relevant to those events as consequences. Discriminative and motivative variables can be distinguished as follows: The former are related to the differential availability of an effective form of reinforcement given a particular type of behavior; the latter are related to the differential reinforcing effectiveness of environmental events. An important distinction can also be made between unconditioned establishing operations (UEOs), such as food deprivation and painful stimulation, and conditioned establishing operations (CEOs) that depend on the learning history of the organism. One type of CEO is a stimulus that has simply been paired with a UEO and as a result may take on some of the motivative properties of that UEO. The warning stimulus in avoidance procedures is another important type of CEO referred to as reflexive because it establishes its own termination as a form of reinforcement and evokes the behavior that has accomplished such termination. Another CEO is closely related to the concept of conditional conditioned reinforcement and is referred to as a transitive CEO, because it establishes some other stimulus as a form of effective reinforcement and evokes the behavior that has produced that other stimulus. The multiple control of human behavior is very common, and is often quite complex. An understanding of unlearned and learned establishing operations can contribute to our ability to identify and control the various components of such multiple determination. 相似文献
218.
Daya S. Sandhu T. Glen Reeves Pedro R. Portes 《Journal of multicultural counseling and development》1993,21(2):106-118
This study examined the effects of neurolinguistic mirroring versus nonmirroring of selected nonverbal behaviors on empathy, trustworthiness, and positive interaction in a cross-cultural setting among 60 Choctaw adolecents and Caucasian female counselors. Results indicated significant mirroring effects on the empathy scale of the Barrett-Lennard Relationship Inventory. 相似文献
219.
220.
Menzel PT 《Kennedy Institute of Ethics journal》1993,3(3):287-292
The arguments against doctors as "double agents" that are presented by Marcia Angell in the preceding article do not defeat the core justification for rationing some relatively high-expense, low-benefit care, and they do not enable us to conclude that clinicians should be barred from any active, substantive role in decisions to limit that care. They do, however, reveal several important conditions that need to govern cost-conscious medial practice in order to preserve an ethic of fidelity to patients: insurers' profits and providers' incomes must be fair, providers must inform patients of any economic reasons that lead to the foregoing of care, and "direct incentive" arrangements must not be used to contain costs. 相似文献