首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   57897篇
  免费   2419篇
  国内免费   21篇
  2020年   703篇
  2019年   820篇
  2018年   1182篇
  2017年   1197篇
  2016年   1244篇
  2015年   895篇
  2014年   1083篇
  2013年   5059篇
  2012年   2003篇
  2011年   2014篇
  2010年   1207篇
  2009年   1239篇
  2008年   1766篇
  2007年   1710篇
  2006年   1570篇
  2005年   1305篇
  2004年   1349篇
  2003年   1272篇
  2002年   1231篇
  2001年   1961篇
  2000年   1836篇
  1999年   1391篇
  1998年   651篇
  1997年   555篇
  1996年   634篇
  1995年   563篇
  1994年   558篇
  1993年   547篇
  1992年   1141篇
  1991年   1043篇
  1990年   1029篇
  1989年   982篇
  1988年   961篇
  1987年   892篇
  1986年   875篇
  1985年   931篇
  1984年   746篇
  1983年   647篇
  1979年   785篇
  1978年   575篇
  1976年   495篇
  1975年   622篇
  1974年   697篇
  1973年   715篇
  1972年   619篇
  1971年   581篇
  1970年   494篇
  1968年   634篇
  1967年   543篇
  1966年   522篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
991.
Health needs and concerns of male adolescents   总被引:1,自引:0,他引:1  
W J Pinch  M Heck  D Vinal 《Adolescence》1986,21(84):961-969
Lifestyle factors established within the family help determine health-care functioning. Adolescents first may be challenged to meet their own health needs as freshmen in college. A 153-item questionnaire was utilized to examine concerns in the areas of alcohol and other drug use, auto safety, weight and dieting, smoking, sexuality, coping and stress, and selection and utilization of health-care services. One hundred fifty-nine male college students responded. Major problems with alcohol use, auto safety, weight control, stress and sexuality were identified. Positive lifestyle factors that were strongly supported included regular exercise, nonsmoking, regular medical and dental checkups, and the development of some support systems to cope with stress. Health-care services designated by respondents to meet their own needs were significantly different from those services they pointed out as needed for their peers.  相似文献   
992.
This study reports on the reliability and concurrent validity of both the trait and state forms of the Multiple Affect Adjective Check List (MAACL) with a high school population, age range of 14-16 years and educational range of 9th and 10th grades (N = 403). Alphas of the four scales (anxiety, depression, hostility, and positive affect) ranged from .67 to .91. Correlations with a check-list of stress-related symptoms and an inventory of the number of extracurricular activities in which the students participated were significant and in the expected direction. Means and standard deviations on the MAACL scales were similar to those of college students. Sex differences were found on some of the scales. The findings indicate that the MAACL is sufficiently reliable and valid to warrant additional use with an adolescent population.  相似文献   
993.
The eating disorders of anorexia nervosa and bulimia are increasing in frequency among adolescent females. These increases have been linked to the cultural ideal in American society of thinness. Attempting to control weight is one behavioral manifestation of the desire for thinness. One particular group of adolescents, female cheerleaders, often experience pressure to attain and maintain weight that is lower than other adolescents of the same height. This study examined cheerleaders' desire for thinness in relationship to disordered eating and weight control behaviors. A Desire for Thinness Scale and selected scales from three eating disorders instruments were administered to 751 high school cheerleaders from the Midwest. Cheerleaders who scored in the upper third on the Desire for Thinness Scale were compared with those who scored in the lower third. Cheerleaders who expressed a strong desire for thinness had significantly higher scores (p less than .0001) on 7 of 8 eating disorders scales. The greater the desire for thinness, the more likely the tendency to report disordered eating and weight control behaviors associated with bulimia. Implications from this study include an awareness of how a cultural ideal of thinness may indirectly increase disordered eating and weight control behaviors by making weight loss a salient goal. A proactive approach to modifying negative aspects of the cultural emphasis on thinness is proposed.  相似文献   
994.
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   
995.
A woman's early development, including the unique mother-daughter bonding, the development of her body image, her castration and annihilation fears, and the interaction with her father, causes specific conflicts when she comes to make choices about motherhood and career. She struggles with disrupting and changing the early mother-daughter bond, with her belief that she should be able to accomplish what she expects of herself without help, with her priorities of relatedness to others as she deals with a larger number of people. She struggles with assertion and anger in her self-interest and with ego ideal expectations that demand she have infinite patience and caring for others.  相似文献   
996.
Physiognomic color responses in perception, imagery, and affect were investigated. Maluma and taketa, nonsense stimuli defined by many investigators as physiognomic, were utilized as prototypical physiognomic stimuli, along with eight other stimuli of various sorts. In Experiment 1, 22 subjects matched the colors of the stimuli; in Experiment 2, 27 subjects reported their imagery to the stimuli; and in Experiment 3, 16 subjects gave their color preferences for the stimuli. The Munsell sets of colors were employed throughout. Significant differences between the physiognomic and other stimuli were found on the brightness and saturation of color matches, images, and preferences. Other differences (e.g., the latency of color images) were also present. Distinctions were also noted between the two physiognomic stimuli. These results support the priority of innate and perceptual processes in physiognomy over those of learning and memory, although some ambiguities still remain.  相似文献   
997.
998.
A cognitive approach to panic   总被引:33,自引:1,他引:32  
  相似文献   
999.
1000.
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   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号