全文获取类型
收费全文 | 65517篇 |
免费 | 2607篇 |
国内免费 | 31篇 |
出版年
2020年 | 627篇 |
2019年 | 787篇 |
2018年 | 1067篇 |
2017年 | 1133篇 |
2016年 | 1159篇 |
2015年 | 872篇 |
2014年 | 989篇 |
2013年 | 4741篇 |
2012年 | 1841篇 |
2011年 | 1916篇 |
2010年 | 1234篇 |
2009年 | 1189篇 |
2008年 | 1731篇 |
2007年 | 1648篇 |
2006年 | 1477篇 |
2005年 | 1341篇 |
2004年 | 1249篇 |
2003年 | 1237篇 |
2002年 | 1196篇 |
2001年 | 2190篇 |
2000年 | 2129篇 |
1999年 | 1561篇 |
1998年 | 712篇 |
1997年 | 602篇 |
1992年 | 1426篇 |
1991年 | 1344篇 |
1990年 | 1343篇 |
1989年 | 1187篇 |
1988年 | 1173篇 |
1987年 | 1146篇 |
1986年 | 1137篇 |
1985年 | 1256篇 |
1984年 | 1003篇 |
1983年 | 855篇 |
1982年 | 629篇 |
1981年 | 613篇 |
1979年 | 1060篇 |
1978年 | 721篇 |
1977年 | 698篇 |
1976年 | 656篇 |
1975年 | 930篇 |
1974年 | 1000篇 |
1973年 | 1091篇 |
1972年 | 921篇 |
1971年 | 828篇 |
1970年 | 823篇 |
1969年 | 827篇 |
1968年 | 1061篇 |
1967年 | 928篇 |
1966年 | 904篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
971.
R K Mills 《Adolescence》1987,22(87):641-646
This article explores the use of fiction in the classroom as a tool for enhancing the self-understanding of adolescents. Specifically, two novels by S.E. Hinton are used as examples. Theoretical consideration as well as practical classroom activities are discussed. 相似文献
972.
R Teeter 《Adolescence》1987,22(86):253-257
The prominence of sport in the American secondary school curriculum owes much to 19th-century child development theories, the most prominent of which (Von Baer's Law) originated in embryology, the forerunner of modern psychology. Von Baer's Law held that embryonic development formed a condensed record of human development, that the embryo in the womb represented in miniature the overall organic evolution of man. The "law" held that youth passed through the same developmental gradations ontogenetically that the human race passed through phylogenetically; that youth repeated in their development approximately the development, from barbarity to civilization, of the human race. Indeed, they stood at a primitive developmental level and simply passed through a stage the human race had passed through thousands of years earlier. Von Baer's Law became a scientific rationale for sport in American schools, most particularly, football, which was believed to be spirited enough to "satisfy the racial claim" and mitigate against antisocial aggressiveness. 相似文献
973.
Psychobiological Factors Predicting the Course of Breast Cancer 总被引:3,自引:0,他引:3
Mogens R. Jensen 《Journal of personality》1987,55(2):317-342
Drawing on a carefully controlled sample of 52 women with a history of breast carcinoma and 34 healthy controls, this prospective study examined empirical associations between psychological factors and the progression of neoplastic disorders over a follow-up period averaging 624 days. Psychological variables were psychometrically assessed by self-report measures. A multiple regression analysis which controlled for disease stage at original diagnosis, age, total length of disease course, hematological factors, and blood chemistries measured at study onset showed neoplastic spread to be associated with a repressive personality style, reduced expression of negative affect, helplessness-hopelessness, chronic stress, and comforting daydreaming. The identified model of medical and psychological variables accounted for 56% of the observed variance. A psychobiological model of brain-body disregulation provided the best account of the observed associations between psychological functioning and the progression of disease. Future research is necessary to examine the role which psychological functioning may exert upon health-relevant behaviors that might blunt the benefits of professional health care. 相似文献
974.
Using a backward-masking paradigm with a bias-free and ceiling-free psychophysical task, we tested hypnotized and control subjects for speed of visual information processing. Approximately half of each group received visual imagery suggestions in an attempt to influence attention. Imagery produced no significant differential effect. Although an absence of a hypnotizability-performance relationship was in keeping with findings of a previous study, those subjects in the present study who performed under hypnosis were, as a group, significantly superior to the other subjects in speed of information processing. 相似文献
975.
Dittmar, Warm, and Dember (1985) suggested that visual parallax may lead to declines in perceptual sensitivity over time in spatial vigilance tasks involving comparative judgments. The present study tested this possibility by restraining subjects' head movements during a 1-hr vigil in which comparative (simultaneous task) or absolute (successive task) judgments of line length were necessary for signal detection. Under free-viewing conditions, perceptual sensitivity declined over time with both types of tasks. Head restraint eliminated the sensitivity decrement in both cases. The results highlight signal quality as a crucial determinant of perceptual decrements in sustained attention. 相似文献
976.
S Gutstein 《Family process》1987,26(4):475-491
Concern for adolescents who act in dangerous, life-threatening ways has heightened dramatically in recent years. Many of these adolescents appear to come from nuclear families isolated from their kinship systems. Without the mediating effects of kin, the adolescent transition can become a major crisis. Kinship systems remain cohesive when members can reconcile their beliefs about essential aspects of family functioning with the demands for adaptation during major life transitions. Reconciliation is lost when members believe that kin can no longer be trusted to insure their well-being. Kinship fragmentation ensues as family members leave the field or are excluded. Isolated nuclear families then rapidly lose the resilience to respond to life transitions without resorting to extreme, maladaptive solutions. The Systemic Crisis Intervention Program (SCIP) uses the opportunity of the crisis precipitated by the adolescent's life-threatening behavior to alter family myths that have led to network fragmentation. Crisis teams mobilize and meet with kin in four-hour gatherings to foster reconciliation and kinship system reintegration. 相似文献
977.
Chronic Illness and the Life Cycle:A Conceptual Framework 总被引:2,自引:0,他引:2
This article provides a conceptual framework for thinking about the system created at the interface of chronic illness with the family life cycle. First, a psychosocial typology and time phases of illness schema is described as a necessary, preliminary step to create a common language that bridges the worlds of illness, individual, and family development. This schema organizes similarities and differences between diseases in a manner useful to psychosocial-developmental rather than biomedical inquiry. Then, drawing on several major life-cycle theories in the literature, key concepts (periods of transition, life-structure building and maintaining, centripetality, and centrifugality) are used in a complementary fashion to link these three lines of development. Equipped with these psychosocial languages, consideration is given to transgenerational aspects of illness, loss, and crisis, and the interwoven threads of illness, family, and individual development. Clinical vignettes are provided to highlight this conceptual framework. 相似文献
978.
Families of Adolescent Drug Abusers Are “Rigid”: Are These Families Either “Disengaged” or “Enmeshed,” or Both? 总被引:2,自引:0,他引:2
The FACES instrument, based on Olson's Circumplex Model of family functioning, was administered to 96 adolescent drug-abuse clients and their parents. The majority of these families categorized themselves as "disengaged" (rather than "enmeshed") on the cohesion dimension, and as "rigid" (rather than "chaotic") on the adaptability dimension. These findings were unexpected as they were substantially different from published findings on families with other types of problems. Family therapists, utilizing Olson's Clinical Rating Scale for the Circumplex Model, characterized significantly more of these same families as "enmeshed," rather than "disengaged." Possible explanations for the difference between the therapists' perceptions and the families' self-perceptions are discussed. 相似文献
979.
D. Robin Hill David S. Krantz Richard J. Contrada Susan M. Hedges Jeffrey A. Ratliff-Grain 《Journal of applied social psychology》1987,17(8):679-698
This study examined the effects of academic stress upon components of Type A behavior and cardiovascular reactivity. In a longitudinal design, heart rate and blood pressure responses to the Type A Structured Interview (SI) and additional laboratory challenges were measured in medical students at three points during an academic semester. Sessions 1 and 3 were scheduled during vacation periods; Session 2 took place during an intensive examination week. Results indicated that three “stylistic” components of Pattern A derived from the SI—loud and explosive speech, short response latency, and potential for hostility—increased significantly during the exam period. Similar increases achieved marginal significance for another stylistic component, rapid and accelerated speech. By contrast, global Type A assessments did not increase with academic demands. Cardiovascular reactivity was significantly but only moderately stable across the three sessions, showing less consistency than has been reported in previous research. In addition, there was little evidence in this study that cardiovascular reactivity was potentiated by academic stress or by Type A behavior. These results demonstrate the influence of naturalistic environmental factors on overt behavioral components that have recently been suggested as coronary risk factors. Therefore, it is advisable for future experimental and epidemiological research to examine the social and environmental context in which these behaviors occur. 相似文献
980.
Michael E. Reaves M.D. Michael J. Maxwell M.S. 《Journal of Contemporary Psychotherapy》1987,17(1):22-33
The evolution of a therapy group for hospitalized Vietnam veterans with post-traumatic stress disorder (PTSD) and related symptomatology is described. The literature on group treatment for this population is briefly reviewed and discussed in relation to an inpatient psychiatry setting. The prevailing conditions at the time of group inception are recalled along with the initial goals of the therapeutic intervention. Problems encountered are also discussed, along with the changes made in response to these identified difficulties. The results of three and one-half years of experience with this group are described in detail.The authors would like to thank Cynthia Sturm, Ph.D. for her helpful editorial assistance. 相似文献