全文获取类型
收费全文 | 52346篇 |
免费 | 2113篇 |
国内免费 | 15篇 |
出版年
2019年 | 670篇 |
2018年 | 899篇 |
2017年 | 940篇 |
2016年 | 971篇 |
2015年 | 717篇 |
2014年 | 855篇 |
2013年 | 4014篇 |
2012年 | 1533篇 |
2011年 | 1612篇 |
2010年 | 971篇 |
2009年 | 948篇 |
2008年 | 1352篇 |
2007年 | 1381篇 |
2006年 | 1262篇 |
2005年 | 1146篇 |
2004年 | 1110篇 |
2003年 | 1034篇 |
2002年 | 1078篇 |
2001年 | 1657篇 |
2000年 | 1525篇 |
1999年 | 1173篇 |
1998年 | 581篇 |
1997年 | 493篇 |
1996年 | 515篇 |
1992年 | 949篇 |
1991年 | 924篇 |
1990年 | 895篇 |
1989年 | 896篇 |
1988年 | 893篇 |
1987年 | 820篇 |
1986年 | 855篇 |
1985年 | 894篇 |
1984年 | 732篇 |
1983年 | 675篇 |
1982年 | 533篇 |
1981年 | 527篇 |
1979年 | 829篇 |
1978年 | 608篇 |
1977年 | 508篇 |
1976年 | 548篇 |
1975年 | 692篇 |
1974年 | 806篇 |
1973年 | 837篇 |
1972年 | 668篇 |
1971年 | 635篇 |
1970年 | 628篇 |
1969年 | 630篇 |
1968年 | 806篇 |
1967年 | 696篇 |
1966年 | 683篇 |
排序方式: 共有10000条查询结果,搜索用时 250 毫秒
831.
R E Muuss 《Adolescence》1986,21(82):257-267
Bulimia, an eating disorder, recently has emerged as a major mental health problem, especially among adolescent females. The bulimic experiences periods of compulsive binge eating followed by purges to rid the body of unwanted calories. Binges are triggered by intense emotional experiences, such as loneliness, anger, rejection, or stress. Associated features of bulimia are secretiveness, depression, drug abuse, preoccupation with body image and sexual attractiveness, and an awareness that the behavior is abnormal. The physical side effects include dental problems, inflamed esophagus, EEG abnormalities, abdominal or urinary disturbances, and changes in blood sugar level. Cognitive disturbances related to binging and purging are perfectionistic, egocentric, and distorted thinking, misconceptions about nutritional requirements, unreasonable goals and expectations, and disturbed affect. Bulimics resist treatment; however, such methods as cognitive, group, family, behavior, and drug therapy, and hospitalization appear promising. 相似文献
832.
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
833.
H E Mendelberg 《Adolescence》1986,21(81):215-224
Mexican-American adolescents of migrant origin present conflicting attitudes in their selection of ideal characters and images for identification. As minority members, identification with members of outside groups appears blocked for them. At the same time, encounters with outside society seem to undermine identification processes that develop within their own group, their families, and community. This study concludes that relationships of dominance and dependence in the outside society foster inhibitions to the process of identification, and disturbances in the mechanisms of defense in the minority member. These relationships seem to interfere with the internalization and adoption of significant others' characteristics and attitudes. 相似文献
834.
835.
E A Waites 《Journal of the American Psychoanalytic Association》1986,34(3):637-662
Gifted women often find it difficult to integrate an acceptable social image with an autonomous artistic identity. This paper explores the ambitions and conflicts of Zelda Fitzgerald, who aspired to be an artist in several fields, but whose fame is largely contingent on the role she played in the life of her husband, F. Scott Fitzgerald. Zelda's flamboyant public pose, which served as a model for many of her husband's literary characters, is interpreted as an attempt to organize a consistent identity configuration by means of constant appeals for applause from an admiring audience. But although this configuration provided some stability and cohesion for her during her twenties, it was a superficial and vulnerable structure which failed to support her serious artistic aspirations. An examination of the separation conflicts and difficulties in internalization which contributed to Zelda's dilemma leads to a consideration of the role of the father in the organization of differentiated female achievements. Although Zelda Fitzgerald's pathology was extreme, her struggles suggest useful insights into the intrapsychic and social barriers commonly confronting creative women. 相似文献
836.
837.
A critical review of the theoretical and outcome studies on family therapy with delinquents is presented. Assessment of the theoretical developments reveals that families of delinquents may be distinguishable from other families by their interactional sequences and processes. The available outcome studies within the field indicate that family therapy is viable for interventions with this population, with behavioral, structural, strategic, and communication approaches receiving the most support, but more specific and robust evidence is still needed. Trends in the research and critical issues are identified and used to provide suggestions for future research and practice. 相似文献
838.
Sabir A. Alvi Sar B. Khan Sandra L. Vegeris Z.A. Ansari 《International journal of psychology》1986,21(1-4):659-670
A cross-cultural study of psychological differentiation of Canadian and Pakistani high school students was undertaken to examine the nature of psychological differentiation in relation to differences in age/grade, gender, and academic programs. The study involved 707 Canadian students from grades 6, 8, 10, and 12; and 349 Pakistani students from grades 8, 9, 10, and 12. The Group Embedded Figures Test was employed as a measure of the field-dependence-independence cognitive style. Analyses of data included two-way and three-way analyses of variance to determine the effects of grade, gender, and academic program upon GEFT scores. Differences in psychological differentiation between high school students in the two cultures were discussed in terms of Berry's eco-cultural model. 相似文献
839.
A new test for measuring the ability to perceive pictorial depth was used with children of two remote Bushman populations (!Xu and Kxoe), as well as with a sample of adult Bushmen drawn from these populations and a sample of urban Zulu children. The results show that subjects of apparently little sophistication are capable of perceiving depth when confronted with a ‘geometric’ figure. They also show surprising inter-group differences which cannot be easily explained by differences of environmental experience. 相似文献
840.