全文获取类型
收费全文 | 1516篇 |
免费 | 43篇 |
国内免费 | 3篇 |
专业分类
1562篇 |
出版年
2020年 | 11篇 |
2019年 | 26篇 |
2018年 | 27篇 |
2017年 | 23篇 |
2016年 | 20篇 |
2015年 | 25篇 |
2014年 | 27篇 |
2013年 | 159篇 |
2012年 | 51篇 |
2011年 | 49篇 |
2010年 | 40篇 |
2009年 | 36篇 |
2008年 | 37篇 |
2007年 | 63篇 |
2006年 | 45篇 |
2005年 | 49篇 |
2004年 | 64篇 |
2003年 | 51篇 |
2002年 | 51篇 |
2001年 | 20篇 |
2000年 | 31篇 |
1999年 | 29篇 |
1998年 | 21篇 |
1997年 | 16篇 |
1996年 | 28篇 |
1995年 | 22篇 |
1994年 | 23篇 |
1993年 | 14篇 |
1992年 | 32篇 |
1991年 | 14篇 |
1990年 | 20篇 |
1989年 | 18篇 |
1988年 | 16篇 |
1987年 | 15篇 |
1986年 | 18篇 |
1985年 | 25篇 |
1984年 | 14篇 |
1983年 | 18篇 |
1982年 | 32篇 |
1981年 | 20篇 |
1980年 | 27篇 |
1979年 | 20篇 |
1978年 | 18篇 |
1977年 | 21篇 |
1976年 | 19篇 |
1975年 | 25篇 |
1974年 | 16篇 |
1968年 | 14篇 |
1967年 | 12篇 |
1966年 | 12篇 |
排序方式: 共有1562条查询结果,搜索用时 0 毫秒
11.
The acquired immune deficiency syndrome (AIDS) has rapidly become the most serious medical consequence of injecting illicit drugs. Its potential impact on intravenous (IV) drug use is enormous. Human immunodeficiency virus (HIV, also known as HTLV-III and LAV), the virus that causes AIDS, appears, usually, to lead to lifelong infection. At present there is no effective treatment, and the treatments under development may require lifelong antiviral therapy. Since most of the antibody produced in response to HIV infection does not neutralize the virus, and since there is substantial genetic variation in the virus, it will be difficult to develop a vaccine. Even after vaccines are developed, testing their safety and efficacy will be formidable problems. Until either effective treatment or vaccines are developed, control of the epidemic among IV drug users must be attempted through behavior change/prevention efforts. In this paper we will review the epidemiology of AIDS among IV drug users and characteristics of the IV drug-use subculture relevant to prevention efforts. We will then identify different target groups for these prevention efforts, present available evidence about behavior change in these groups, and then briefly discuss how to prevent transmission of HIV to heterosexual partners who are not themselves IV drug users and to the children of IV drug users. 相似文献
12.
Effective overall performance in judgment tasks generally involves both acquisition of information and integration of the information acquired. When information is costly the decision maker must balance acquisition costs against improved decisional accuracy, a complex balancing problem in which, laboratory evidence suggests, humans often do poorly. The three experiments reported here extend this earlier evidence to different task structures, subject pools, incentive systems, information volumes, decision aids, and kind of data sources. Though each of these factors was found to affect performance, the general finding was of persistent underpurchase (buying less information overall than is optimal) and mispurchase (buying poor sources when better sources are available at the same cost), with significant inflation of overall costs. It is proposed that unaided human judgment is unequal to the complexity of the cost/benefit trade-offs involved in acquiring costly information, and that formal decision analysis should be preferred whenever the stakes justify. 相似文献
13.
SEX DIFFERENCES IN MORAL JUDGMENTS? A TEST OF GILLIGAN'S THEORY 总被引:1,自引:0,他引:1
14.
This paper examines the relationship between workaholism, sex, and sex role orientation among professionals. The sample consisted of 86 male and 106 female attorneys, physicians, and psychologists/therapists. Results indicated a significant relationship between sex and sex role stereotyping. Among females, workaholics were grouped exclusively in the sex role categories masculine and androgynous. Implications for counseling include increasing awareness of changing sex role attitudes among professional women and possible role conflict that can occur from integration of work and family. 相似文献
15.
Orthogonal and oblique factor analyses were performed using the Wechsler Adult Intelligence Scale-Revised (WAIS-R) standardization sample (Wechsler, 1981). Using objective criteria, it was decided to retain two factors. Evidence for a strong general intelligence (g) factor was found from both the orthogonal and oblique rotations. Whereas the verbal IQ provided an acceptable estimate of the Verbal Comprehension factor, a purer measure was found in the form of a Verbal Comprehension Deviation Quotient containing only the Information, Vocabulary, Comprehension, and Similarities subtests. The performance IQ was found to be an inadequate measure of the Perceptual Organization factor. A Perceptual Organization Deviation Quotient, containing only the Block Design and Object Assembly subtests, was recommended as an effective alternative. Analysis of the variance components for each subtest at every age level revealed that a substantial proportion of subtests at a wide range of age levels evidence either high or intermediate levels of specific variance. These results are discussed in terms of interpreting individual subtest scores and patterns. Each of the study's major findings are compared with prior work done with the Wechsler Adult Intelligence Scale (WAIS) (Wechsler, 1955). 相似文献
16.
This essay explores the dynamics underlying the search for a Messiah in psychotherapy. It argues that the disenchantment with one's Messiah emerges primarily from the confrontation with multiple messiahs, and hence, the personal crisis of relativism. The nature of this personal crisis is investigated through the developmental scheme of William Perry. Suggestions are made as to how pastoral counselors can help those struggling with the problem of relativism.The Southeastern Illinois Center for Pastoral Counseling is located at 100 South Church Street, Carmi, Illinois, 62821. 相似文献
17.
18.
For a joint family story-telling task, families with a schizophrenic offspring were compared to normal families on the completeness and clarity of the final composite stories and on their interactional behavior. The composite stories from schizogenic families were more “vague and confused”, fragmented, and less complete as to the five components required to satisfy the task instructions. Schizogenic families displayed more conflict, failure, and confusion during the interactional task than control families, and, fathers and mothers of schizophrenic offspring displayed more “anxiety and tension”, “depressive mood”, “evasiveness” and “lack of interest” than fathers and mothers of normal families. Mothers of schizophrenic offspring were also described as more “hostile” than control mothers. Comparing schizogenic families from which the patient was absent during the task with schizogenic families with the patient present, and with control families, indicated that the central findings were not attributable to the immediate presence and participation of the schizophrenic member. 相似文献
19.
Steven R. H. Beach Jack K. Martin Terry C. Blum Paul M. Roman 《Journal of psychopathology and behavioral assessment》1993,15(2):113-128
Considerable evidence has accumulated in support of the hypothesis that subclinical depression may inhibit role performance in important ways. However, interpersonal stress and marital discord often precede the development of depressive symptomatology and may independently predict deficits in family role functioning. In addition, cognitive theories suggest that persons with subclinical depression may report poor role functioning even in the absence of any real performance deficits. The current research examines the possibility (1) that the effect of depression on the fulfillment of important family roles is attributable to previously unmeasured contextual variables of ongoing interpersonal stress and/or relationship dissatisfaction or, alternatively, (2) that this relationship is the result of depressive distortion associated with self-report of symptoms and performance. Multiple regression analyses of interview data collected from 495 community-dwelling adults found, however, that depression is related to role functioning beyond any spurious effects attributable to interpersonal stress, spousal stress, or marital satisfaction. In addition, the effect of depression persists when collateral reports of role functioning utilized. Accordingly, it appears that subclinical depression is related to decrements in role performance, and this effect is not entirely due to contextual elements or shared method variance between self-report measures.The authors acknowledge research support from Research Grants R01-AA-07250 and R01-AA-07218 from the National Institute on Alcohol Abuse and Alcoholism, Research Grant R01-DA-07417 from the National Institute on Drug Abuse, and National Institutes of Mental Health Grant A-41487-07. 相似文献
20.
ABSTRACT Subjects consisted of a sample of two cohorts of approximately 100 boys each whose behaviors were rated by their parents and teachers. Criterion variables included antisocial behavior, based on parent, child, teacher, and interviewer reports, and delinquency, based on parent and child reports in addition to cumulative arrest data taken from juvenile court records. The data suggest that mothers are focused on the daily, irritating behaviors of their sons. Teachers, on the other hand, appear to focus on a relatively small number of items (e.g., child physically attacks others, associates with deviant peers), and thereby provide ratings that are better predictors of delinquency and arrest. When the mothers' ratings were constrained to include only items that were salient for teachers, their predictive validity coefficients approached the magnitude of the teacher coefficients. 相似文献