全文获取类型
收费全文 | 18046篇 |
免费 | 816篇 |
国内免费 | 4篇 |
出版年
2023年 | 98篇 |
2021年 | 141篇 |
2020年 | 251篇 |
2019年 | 335篇 |
2018年 | 436篇 |
2017年 | 478篇 |
2016年 | 462篇 |
2015年 | 376篇 |
2014年 | 440篇 |
2013年 | 2004篇 |
2012年 | 743篇 |
2011年 | 814篇 |
2010年 | 508篇 |
2009年 | 521篇 |
2008年 | 736篇 |
2007年 | 695篇 |
2006年 | 638篇 |
2005年 | 616篇 |
2004年 | 609篇 |
2003年 | 585篇 |
2002年 | 592篇 |
2001年 | 293篇 |
2000年 | 236篇 |
1999年 | 253篇 |
1998年 | 280篇 |
1997年 | 262篇 |
1996年 | 224篇 |
1995年 | 216篇 |
1994年 | 214篇 |
1993年 | 218篇 |
1992年 | 206篇 |
1991年 | 179篇 |
1990年 | 186篇 |
1989年 | 149篇 |
1988年 | 148篇 |
1987年 | 160篇 |
1986年 | 140篇 |
1985年 | 190篇 |
1984年 | 225篇 |
1983年 | 206篇 |
1982年 | 233篇 |
1981年 | 200篇 |
1980年 | 178篇 |
1979年 | 166篇 |
1978年 | 213篇 |
1977年 | 197篇 |
1976年 | 194篇 |
1975年 | 171篇 |
1974年 | 177篇 |
1973年 | 131篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
952.
Gellis LA Lichstein KL Scarinci IC Durrence HH Taylor DJ Bush AJ Riedel BW 《Journal of abnormal psychology》2005,114(1):111-118
This investigation compared the likelihood of insomnia and insomnia-related health consequences among individuals of different socioeconomic status. A random-digit dialing procedure was used to recruit at least 50 men and 50 women in each age decade from 20 to 80+ years old. Participants completed 2 weeks of sleep diaries as well as questionnaires related to fatigue, sleepiness, and psychological distress. Socioeconomic status was measured by education status assessed at 3 different levels: individual, household, and community. Results indicated that individuals of lower individual and household education were significantly more likely to experience insomnia even after researchers accounted for ethnicity, gender, and age. Additionally, individuals with fewer years of education, particularly those who had dropped out of high school, experienced greater subjective impairment because of their insomnia. 相似文献
953.
The authors examined whether parental major depressive disorder (MDD) is associated with course of depression and other psychopathology among formerly depressed adolescents as they enter adulthood. The sample consisted of 244 individuals (age 24) in a longitudinal study who had experienced MDD by 19. Maternal MDD was associated with MDD recurrence, chronicity and severity, anxiety disorders, and (among sons only) lower psychosocial functioning in offspring between the ages of 19 and 24. Paternal MDD was associated with lower functioning. Sons of depressed fathers had elevated suicidal ideation and attempt rates in young adulthood. Recurrent paternal MDD was associated with depression recurrence in daughters but not sons. The impact of parental MDD on offspring could not be attributed to characteristics of the offspring's depression prior to age 19. 相似文献
954.
Developmental and etiological advances have set the stage for considering trajectories of problem behavior across the life course, but little work thus far addresses co-occurring problem behavior trajectories. Although recent work characterizes drinking and smoking trajectories, none has explored the course of concurrent drinking and smoking. Using panel data from the Monitoring the Future Project (N=32,087), the authors applied growth mixture modeling to 4 waves of heavy drinking and smoking in a young-adult sample. The authors extracted a single latent group membership factor from heavy drinking and smoking. Associations between trajectory classes and risk factors were relatively unique to the substance being predicted. The association of smoking with alcohol expectancies and delinquency appeared to exist by virtue of smoking's comorbidity with drinking. 相似文献
955.
Advances in genomic research are increasingly identifying genetic components in major health and mental health disorders. This article presents a Family System Genetic Illness model to address the psychosocial challenges of genomic conditions for patients and their families, and to help organize this complex biopsychosocial landscape for clinical practice and research. This model clusters genomic disorders based on key characteristics that define types of disorders with similar patterns of psychosocial demands over time. Key disease variables include the likelihood of developing a disorder based on specific genetic mutations, overall clinical severity, timing of clinical onset in the life cycle, and whether effective treatment interventions exist to alter disease onset and/or progression. For disorders in which carrier, predictive, or presymptomatic testing is available, core nonsymptomatic time phases with salient developmental challenges are described pre- and post-testing, including a long-term adaptation phase. The FSGI model builds on Rolland's Family System Illness model, which identifies psychosocial types and phases of chronic disorders after clinical onset. The FSGI model is designed to be flexible and responsive to future discoveries in genomic research. Its utility is discussed for research, preventive screening, family assessment, treatment planning, and service delivery in a wide range of healthcare settings. 相似文献
956.
Mohanty A Herrington JD Koven NS Fisher JE Wenzel EA Webb AG Heller W Banich MT Miller GA 《Journal of abnormal psychology》2005,114(1):16-27
Negatively valenced stimuli foster cognitive impairment in schizotypy and schizophrenia. To identify relevant brain mechanisms, the authors had 16 positive-schizotypy and 16 control participants perform an emotional Stroop task, judging the ink color of negative and neutral words during functional magnetic resonance imaging (fMRI) of regional brain activity. Schizotypy individuals showed increased right and decreased left activity in dorsolateral prefrontal cortex, indicating a deficit in maintenance of attentional set in the presence of negative emotional distractors. They also showed abnormal activity in ventral limbic areas, including decreased activity in nucleus accumbens and increased activity in hippocampus and amygdala, a circuit involved in the integration of cognitive and affective processes. These results indicate that aspects of emotion-cognition processes and the brain mechanisms that implement them are similar in schizotypy and schizophrenia. 相似文献
957.
Fairness heuristic theory was used to examine how information from one's peers affects an individual's interpretation of, and reactions to, an authority's subsequent behavior. Participants (N=105) overheard their peers discuss an experimenter's reputation (fair, unfair, or absent) before interacting with the experimenter who behaved more versus less fairly. Results showed that the social cues biased participants' subsequent information processing: controlling for the experimenter's behavior, interactional justice mediated the effect of social cues on retaliation. Social cues and the authority's behavior also interacted to predict retaliation. Participants who were treated less fairly retaliated more after being led to expect fair treatment than did participants who heard no prior information about the experimenter. 相似文献
958.
Assessing the feasibility of using contingency management to modify cigarette smoking by adolescents
Roll JM 《Journal of applied behavior analysis》2005,38(4):463-467
Cigarette smoking is a leading cause of preventable death in the United States. Many smokers initiate this dangerous behavior during adolescence. This report describes a contingency management intervention designed to initate and maintain a period of abstinence from cigarettes by adolescent smokers. Results suggest that the intervention was generally successful and that further investigation of this topic is warranted. 相似文献
959.
Recent research suggests that the turnover process is not fully captured by the traditional sequential model relating job dissatisfaction to subsequent turnover. The present study contributes to this research by modeling within-individual job satisfaction as a function of job change patterns to determine if individual work attitudes change systematically with the temporal turnover process. Specifically, the authors hypothesized that low satisfaction would precede a voluntary job change, with an increase in job satisfaction immediately following a job change (the honeymoon effect), followed by a decline in job satisfaction (the hangover effect). Though this pattern is suggested in the literature, no prior research has integrated and tested this complete temporal model within individuals. Findings based on a sample of managers supported the proposed honeymoon-hangover effect. 相似文献
960.
Marks MA DeChurch LA Mathieu JE Panzer FJ Alonso A 《The Journal of applied psychology》2005,90(5):964-971
The authors examined how networks of teams integrate their efforts to succeed collectively. They proposed that integration processes used to align efforts among multiple teams are important predictors of multiteam performance. The authors used a multiteam system (MTS) simulation to assess how both cross-team and within-team processes relate to MTS performance over multiple performance episodes that differed in terms of required interdependence levels. They found that cross-team processes predicted MTS performance beyond that accounted for by within-team processes. Further, cross-team processes were more important for MTS effectiveness when there were high cross-team interdependence demands as compared with situations in which teams could work more independently. Results are discussed in terms of extending theory and applications from teams to multiteam systems. 相似文献