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   4711篇
  免费   189篇
  国内免费   3篇
  2023年   39篇
  2022年   24篇
  2021年   52篇
  2020年   94篇
  2019年   116篇
  2018年   161篇
  2017年   135篇
  2016年   164篇
  2015年   113篇
  2014年   125篇
  2013年   568篇
  2012年   221篇
  2011年   212篇
  2010年   147篇
  2009年   127篇
  2008年   168篇
  2007年   191篇
  2006年   164篇
  2005年   168篇
  2004年   168篇
  2003年   147篇
  2002年   147篇
  2001年   89篇
  2000年   73篇
  1999年   90篇
  1998年   77篇
  1997年   54篇
  1996年   71篇
  1995年   61篇
  1994年   65篇
  1993年   61篇
  1992年   65篇
  1991年   40篇
  1990年   46篇
  1989年   44篇
  1988年   36篇
  1987年   44篇
  1986年   46篇
  1985年   50篇
  1984年   39篇
  1983年   51篇
  1982年   42篇
  1981年   35篇
  1980年   38篇
  1979年   23篇
  1978年   27篇
  1977年   25篇
  1976年   22篇
  1975年   19篇
  1974年   24篇
排序方式: 共有4903条查询结果,搜索用时 46 毫秒
971.
In this paper we examine goal setting and feedback as possible sources of perceived organizational support (Eisenberger, Huntington, Hutchison, & Sowa, 1986). Surveys were administered to 337 employees from 3 different organizations in the southern California area. Two path models were examined: one that allowed goal setting and feedback to have direct effects on perceived support and organizational commitment, and one that only allowed goal setting and feedback to have direct effects on perceived support. Results show that goal setting and feedback do not have direct effects on organizational commitment but, rather, affect commitment indirectly by way of their effects on employee perceptions of support from the organization.  相似文献   
972.
ABSTRACT Individual differences in social-emotional adjustment, jointly defined by levels of distress and self-restraint, were used to evaluate (a) patterns of alcohol use, (b) reasons for use, and (c) associated problems in two college samples of young adults (N= 287 and N= 215). As hypothesized, low self-restraint was associated with high levels of alcohol use, drinking to increase positive affect, and high levels of alcohol-related problems. Subjective distress was not related to levels of use; however, it was associated with drinking to escape negative moods and social discomfort and with excessive alcohol-related problems. Both high distress and low self-restraint predicted problem drinking beyond what could be accounted for by quantity or frequency of alcohol use or by peers' use. Within Weinberger and Schwartz's (1990) six-group typology, reactive individuals (high distress–low restraint) were especially likely to be problem drinkers, even when compared to groups with equivalent alcohol use. In a separate study, knowledgeable peers' reports validated the differences between reactive and repressive individuals, the two groups most likely to have inaccurate self-reports.  相似文献   
973.
This study investigates the relative likelihood of psychotherapists promoting altruism and forgiveness as therapeutic agents as compared with other techniques. One hundred and five therapists were asked to rate the relative likelihood of fostering altruism, forgiveness, direct expression of feelings, vicarious ventilation of feelings, and self-reinforcement in response to treating four presenting problems where a fictitious client had been hurt by another. Results indicated that, for the most part, altruism and forgiveness were likely to be promoted significantly less often than the other three therapeutic alternatives by the therapists sampled. The association of altruism and forgiveness with religious values and their disassociation from selftheory are posited as possible explanations for the findings.  相似文献   
974.
Mary Strom Larson 《Sex roles》1996,35(1-2):97-110
This study investigated the contribution of daytime television soap operas to the perception of the roles and lifestyle of the single mother. The perceptions of soap opera viewers and nonviewers were compared using 163 junior and senior high students as subjects, 9% of whom were ethnic minorities. In particular, viewers perceive that single mothers have good jobs, are relatively well-educated and do not live in poverty. Further, they perceive that their babies will be as healthy as most babies and that their babies will get love and attention from adult men who are friends of their mothers. To the degree that these perceptions contribute to the gender role socialization of adolescents, we are faced with a problematic situation. Particularly in light of the fact that soap operas are increasingly targeting the adolescent viewer, the image portrayed on soap operas and the impact it appears to have is of great concern.  相似文献   
975.
We have previously argued that rehearsal in spatial working memory is interfered with by spatial attention shifts rather than simply by movements to locations in space (Smyth & Scholey, 1994). It is possible, however, that the stimuli intended to induce attention shifts in our experiments also induced eye movements and interfered either with an overt eye movement rehearsal strategy or with a covert one. In the first experiment reported here, subjects fixated while they maintained a sequence of spatial items in memory before recalling them in order. Fixation did not affect recall, but auditory spatial stimuli presented during the interval did decrease performance, and it was further decreased if the stimuli were categorized as coming from the right or the left. A second experiment investigated the effects of auditory spatial stimuli to which no response was ever required and found that these did not interfere with performance, indicating that it is the spatial salience of targets that leads to interference. This interference from spatial input in the absence of any overt movement of the eyes or limbs is interpreted in terms of shifts of spatial attention or spatial monitoring, which Morris (1989) has suggested affects spatial encoding and which our findings suggest also affects reactivation in rehearsal.  相似文献   
976.
Mary Gerhart 《Zygon》1996,31(1):87-92
Abstract. Ian Harbour's Ethics in an Age of Technology provides an indispensable overview of the field of ethics and technology—an overview that gives balanced views informed by science, philosophy, and religion and that provides encyclopedic coverage of a variety of issues and methods typical to them. Barbour makes communication possible between two fields often at odds in our culture. Part 2 of the book relates the values introduced in Part 1 to three specific areas of technology: agriculture, energy, and computers. The book pays superficial attention to gender issues. Its focus is on planet Earth; the universe and models of the future are only implicit.  相似文献   
977.
The relationship between maternal affective symptomatology and discrepancies in maternal reports of child symptoms, relative to teacher and child reports, was evaluated in a community sample of 188 children ages 9–12 years. Mothers, teachers, and children were administered a structured interview about child psychopathology. In general, mothers reported more child behavior problems than children and teachers, regardless of maternal symptomatology. However, maternal affective symptoms were associated with discrepancies between mothers' and daughters' reports and between mothers' and teachers' reports of girls' externalizing symptoms. Furthermore, mothers who reported high levels of both anxiety and depressive symptomatology tended to report a large number of symptoms that were not confirmed by either their daughters or teachers. Findings are discussed as possible evidence of the role of maternal affective symptomatology in both actual increases in child symptomatology and maternal reporting distortions. Although maternal depressive and anxiety symptoms shared variance in reporting discrepancies, only anxiety explained unique variance. Consistent with previous studies, cross-informant agreement was modest to moderate (r= .16 to .50) and all informants reported more behavior problems in boys than in girls. This work was undertaken with the support of National Institute of Mental Health Grants MH43909 and MH46717.  相似文献   
978.
The present study sought to extend our knowledge of dysphoric adolescents' dyadic peer interactions. Thirty female dyads (ages 13–17) were videotaped interacting during both a structured and an unstructured task. Fourteen of the dyads were each comprised of a dysphoric girl and a nondysphoric girl; the remaining dyads were comprised of two nondysphoric girls. Girls were considered dysphoric if they scored 10 or higher on the Beck Depression Inventory. Dysphoric subjects evaluated their performances more negatively than nondysphoric subjects and rated their partners more negatively overall. The partners of the dysphoric girls were viewed by raters as less positive and less happy. They saw the dysphoric teens as making more critical comments and evaluated them more negatively overall. There was also a tendency for these girls to reject their dysphoric partners and to become more passive during the unstructured task. The findings indicate that dysphoric adolescent girls evoke negative reactions from peers and negatively influence their peers' behavior. These negative reactions from others may lead to further difficulties in negotiating the developmental tasks of adolescence.  相似文献   
979.
A revised teacher rating scale for Reactive and Proactive Aggression   总被引:12,自引:0,他引:12  
A teacher rating scale of reactive aggression, proactive aggression, and covert antisocial behavior was evaluated in a normative sample of third- to fifth-grade predominantly white lower middle class boys (N= 186). Factor analysis revealed independent and internally consistent Reactive Aggression (six reactive items), and Proactive Aggression (five proactive items, five covert items) factors. Although the factors were intercorrelated (r= .67), and each factor was significantly correlated with negative peer social status (r= .26 for each, controlling for grade), the independence of the factors was supported by the unique relation of Reactive Aggression with in-school detentions (r= .31), controlling for Proactive Aggression and grade. These results supported the reliability and validity of Reactive and Proactive Aggression as rated by teachers, which should facilitate further research of these constructs. This research was supported in part by an NIMH First Award to Marc Atkins (MH4682), and support from an NICHD Mental Retardation Research Center Core Center Grant (DH26979). Portions of these data were presented at the annual meeting of the Society for Research in Child and Adolescent Psychopathology, Sarasota, Florida, in February 1992. The authors are grateful to Paul McDermott and Tom Power for editorial comments, and to Gail Apfel, principal, and the teachers, staff, and students of Stonehurst Elementary School for their enthusiastic participation in this research.  相似文献   
980.
Data from rodent studies have indicated that stress experienced by pregnant mothers may result in behavioral and biological abnormalities in their offspring. However, few studies have examined the effects of prenatal stress on the offspring beyond the childhood period. In this study, 7 prenatally stressed (PNS) monkeys and 7 monkeys from undisturbed pregnancies were tested under mildly challenging conditions at 4 years of age. Following separation from cagemates and group formation, PNS monkeys showed more locomotion, abnormal and disturbance behavior than controls. Controls showed approximately six times more play than PNS animals. The PNS males showed the most clinging to others and the largest increase in contact with other animals over the period. Group differences were also found when the monkeys were observed as groups or alone in a playroom. Controls showed more explanatory behavior in the playroom, whereas PNS monkeys showed more inactivity. Control animals showed a decrease in distress vocalizations over time in the playroom, whereas PNS animals showed the opposite pattern. Control animals spent more time in proximity to and contact with cagemates than PNS animals. These results indicate that prenatal stress can have effects on adaptive and social behavior that persist into adolescence.  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