全文获取类型
收费全文 | 19446篇 |
免费 | 748篇 |
国内免费 | 4篇 |
专业分类
20198篇 |
出版年
2019年 | 264篇 |
2018年 | 340篇 |
2017年 | 295篇 |
2016年 | 346篇 |
2015年 | 250篇 |
2014年 | 339篇 |
2013年 | 1617篇 |
2012年 | 588篇 |
2011年 | 628篇 |
2010年 | 407篇 |
2009年 | 413篇 |
2008年 | 557篇 |
2007年 | 620篇 |
2006年 | 557篇 |
2005年 | 457篇 |
2004年 | 481篇 |
2003年 | 454篇 |
2002年 | 461篇 |
2001年 | 514篇 |
2000年 | 558篇 |
1999年 | 409篇 |
1998年 | 268篇 |
1997年 | 206篇 |
1996年 | 223篇 |
1995年 | 203篇 |
1994年 | 188篇 |
1992年 | 326篇 |
1991年 | 327篇 |
1990年 | 344篇 |
1989年 | 310篇 |
1988年 | 297篇 |
1987年 | 264篇 |
1986年 | 281篇 |
1985年 | 296篇 |
1984年 | 238篇 |
1983年 | 242篇 |
1982年 | 205篇 |
1981年 | 185篇 |
1980年 | 188篇 |
1979年 | 279篇 |
1978年 | 234篇 |
1975年 | 228篇 |
1974年 | 259篇 |
1973年 | 282篇 |
1972年 | 231篇 |
1971年 | 210篇 |
1969年 | 200篇 |
1968年 | 251篇 |
1967年 | 242篇 |
1966年 | 211篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
251.
Variables which differentiate placement of adolescents into juvenile justice or mental health systems 总被引:2,自引:0,他引:2
Studies of the variables that determine whether an adolescent is placed in the mental health or juvenile justice system for treatment have led to conflicting conclusions based on impressionistic data. The primary hypothesis of this study--that demographic variables would and personality/psychopathology variables would not differentiate into which system a youth will be placed--was supported. Adolescents were studied at intake into both the juvenile justice system and the mental health system. Data were collected on demographics (structured interviews), personality/psychopathology (MMPI), social adjustment (CAAP), and academic achievement (PIAT). A discriminant function analysis identified eight statistically significant variables which differentiated the two groups. In order of decreasing importance they are: ethnicity, gender, MMPI-depression, previous mental health history, CAAP-productivity, drug use, parental marital history, and parental religious preference. 相似文献
252.
Susan Kavaler 《American journal of psychoanalysis》1986,46(4):336-344
Repeated object loss drove Sylvia Plath to create, and what she created were her greatest, and best-known poems, collected in the book Ariel. Yet the compulsion to create alternated with the compulsion to destroy. Her suicidal impulses were as intense as her poetic impulses (see Bach, 1985, on the "Marquis de Sade"). How these two contrasting impulses counter-balanced each other, until self-destruction took the lead, is the story of Sylvia Plath. What remains with us is the puzzle of her despair. This puzzle can only be pieced together by looking at the internal object relations of the father-daughter bond, which germinated like a ghost and spector within Sylvia Plath's soul. 相似文献
253.
Burkhardt F 《Proceedings of the American Philosophical Society》1986,130(4):367-373
254.
255.
256.
257.
Interventions were employed to program maintenance following correspondence training. The use of reinforcement of verbalization and a mixed sequence of procedures designed to establish indiscriminable contingencies was evaluated in multiple-baseline designs across subjects and behaviors. The results indicated that target behaviors were maintained under less intrusive interventions and in the absence of programmed contingencies during extended follow-up conditions. The results are discussed in terms of changes in reinforcement schedules established in maintenance interventions. 相似文献
258.
Mark R Leary Susan Crites Atherton Sara Hill Christine Hur 《Journal of personality》1986,54(4):704-716
People differ in the degree to which they become inhibited and avoidant when they feel socially anxious This study explored the hypothesis that characterological attributions for one's feelings of nervousness in social settings are related to social inhibition and avoidance In a preliminary study, the dimensions people use to explain their feelings of nervousness and relaxation were determined One hundred and twenty-five subjects then completed measures of social anxiousness, inhibition, and avoidance, and made attributions for feeling nervous and relaxed in 10 interpersonal scenarios As predicted, attributions of nervousness to characterological factors, such as ability and personality traits, correlated positively with social inhibition and avoidance Unexpectedly, behavioral attributions for nervousness also predicted inhibition and avoidance 相似文献
259.
Recent studies have provided strong support for the convergent validity of the General Behavior Inventory (GBI), a case identification inventory for chronic subsyndromal affective disorders (cyclothymia and dysthymia). Fewer data are available, however, on the ability of the GBI to distinguish chronic subsyndromal affective disorders from other forms of psychopathology. In order to address this issue, outpatients with cyclothymia (n = 9), dysthymia (n = 26), nonchronic major depression (n = 16), and nonaffective psychiatric disorders (n = 30) were compared on the GBI. Diagnoses were derived blind to GBI scores using structured diagnostic interviews and DSM-III criteria. The inventory significantly discriminated cyclothymes and dysthymes from patients with nonchronic major depressions and nonaffective disorders. Using the cutoff score that maximized GBI-diagnosis concordance, the inventory correctly classified 88% of the sample. All of the cyclothymes, 92% of the dysthymes, 87% of the patients with nonaffective psychiatric disorders, and 75% of the nonchronic major depressives were correctly classified by the inventory. These data provide strong support for the discriminant validity of the GBI. 相似文献
260.
A two-phase functional analysis of a profoundly retarded 19-year-old male's pica facilitated the design of an effective intervention containing no aversive components. In the first analysis, frequent staff-client interaction resulted in 25% and 66% less pica than limited and no interaction, respectively. Paradoxical effects were obtained in the second analysis, where no protective helmet resulted in 38% and 26% less pica than the helmet with face shield and helmet without face shield, respectively. On the basis of these analyses, limited interaction and no helmet conditions were combined in an effective, staff-implemented treatment at a medium-sized institution. 相似文献