全文获取类型
收费全文 | 3557篇 |
免费 | 159篇 |
国内免费 | 2篇 |
出版年
2020年 | 49篇 |
2019年 | 74篇 |
2018年 | 97篇 |
2017年 | 88篇 |
2016年 | 94篇 |
2015年 | 72篇 |
2014年 | 94篇 |
2013年 | 392篇 |
2012年 | 120篇 |
2011年 | 142篇 |
2010年 | 88篇 |
2009年 | 89篇 |
2008年 | 128篇 |
2007年 | 111篇 |
2006年 | 114篇 |
2005年 | 102篇 |
2004年 | 84篇 |
2003年 | 99篇 |
2002年 | 108篇 |
2001年 | 96篇 |
2000年 | 86篇 |
1999年 | 69篇 |
1998年 | 42篇 |
1997年 | 38篇 |
1996年 | 41篇 |
1995年 | 43篇 |
1994年 | 40篇 |
1993年 | 33篇 |
1992年 | 49篇 |
1991年 | 51篇 |
1990年 | 46篇 |
1989年 | 48篇 |
1988年 | 36篇 |
1987年 | 37篇 |
1986年 | 46篇 |
1985年 | 43篇 |
1984年 | 43篇 |
1983年 | 33篇 |
1982年 | 41篇 |
1981年 | 35篇 |
1979年 | 40篇 |
1978年 | 31篇 |
1975年 | 35篇 |
1974年 | 34篇 |
1973年 | 29篇 |
1972年 | 31篇 |
1970年 | 39篇 |
1968年 | 35篇 |
1967年 | 42篇 |
1966年 | 33篇 |
排序方式: 共有3718条查询结果,搜索用时 15 毫秒
951.
Regina Kenen Ann C. M. Smith Carolee Watkins Carol Zuber-Pittore 《Journal of genetic counseling》2000,9(3):203-217
We conducted an exploratory, qualitative study investigating the factors influencing the use of genetic counseling and prenatal genetic testing for two groups: pregnant women 35 years of age and over (AMA) at the time of delivery and pregnant women with an abnormal maternal serum triple screen (MSAFP3). The convenience sample consisted of 25 semistructured interviews of women/couples and 50 observations of genetic counseling sessions. Worry turned out to be the most important variable influencing decision making about prenatal genetic testing and was greater in the MSAFP3 group than in the AMA group. The women in the AMA group appeared to assign the risk of having a child with Down syndrome to their age category rather than to themselves individually, whereas, the risk perception for women with an abnormal MSAFP3 appeared to have shifted from a general population risk for pregnant women to an individual, personal risk. There was a general lack of understanding and also more misinformation about the MSAFP3 screen compared to amniocentesis. Women in both groups were torn between fear of an invasive test and worry about the health of their fetus for the rest of their pregnancy if they did not undergo amniocentesis. 相似文献
952.
Michael T. Smith Timothy P. Carmody Michelle Sun Smith 《Journal of clinical psychology in medical settings》2000,7(3):175-184
Outcome measures that assess quality of life for use in health policy decisions need to be investigated in chronic pain patients. In the present study, the validity of the Quality of Well-Being Scale (QWB) was evaluated on 67 adult chronic low back pain (CLBP) patients who were enrolled in a 12-week multidisciplinary pain treatment program. Participants completed the QWB, a battery of pain measures, a behavioral observation task, and a medical exam. The findings indicated that CLBP patients have a low level of functioning or quality of life (M = .567, SD = .08) compared with persons with life-threatening diseases. The QWB score was significantly correlated with observational measures of pain behavior and pain-related coping strategies. Multivariate analysis indicated that interference in daily activities, distorted ambulation, affective distress, pain duration, and guarding were the most significant predictors of quality of well-being (multiple R = .84, p < .0001). Patients with medically incongruent physical signs had significantly lower QWB scores than patients with congruent signs. Overall, the data supported the validity of the QWB in a sample of CLBP patients. 相似文献
953.
Frederick J. Diedrich Esther Thelen Linda B. Smith Daniela Corbetta 《Developmental science》2000,3(4):479-494
Why do infants make perseverative errors when reaching for two identical targets? From a dynamic systems perspective, perseverative errors emerge from repetitive perceptual–motor activity in novel and/or difficult contexts. To evaluate this account, we studied 9‐month‐old infants performing two tasks in which they repetitively reached toward either a single target or two identical targets. Results showed that, in the context of the two identical targets, perseverative responses were preceded by the creation of strong memories of previous reach directions and trajectories. In contrast, we found little evidence for convergence on habitual reach trajectories when the infants performed the less taxing single‐target task, suggesting that the demands of reaching for two identical targets strongly constrained the reaching behavior. In total, results indicated that memories of prior movements make a critical contribution to performance in the A‐not‐B task and its variants. 相似文献
954.
David Smith 《Journal of Beliefs & Values》2000,21(1):27-38
An important issue in recent discussions of spirital development in educational contexts is the relationship between spirituality and religion. This paper explores, with particular reference to a series of articles by Mike Newby, the position that religious perspectives should not be allowed a formative role, and that spiritual development in schools must have a secular basis. The paper examines two lines of argument put forward by Newby. The first appeals to the post-religious and/or plural nature of the social context. The second evaluates religious frameworks negatively, regarding them as restrictive, exclusionary and fictitious. I argue that there are significant problems with each of these arguments, that Newby's case for a secularist approach does not hold, and that religiously oriented accounts remain viable. The paper concludes with reflections on the relationship between secularism and pluralism. 相似文献
955.
Naila A. Smith Joshua L. Brown Tran Tran Carola Suárez-Orozco 《International journal of psychology》2020,55(5):743-753
Parents and friends can help facilitate the academic engagement of newcomer immigrant youth during the early post-migration years. Using an accelerated longitudinal design and the integrative risk and resilience framework, we examined how parent home involvement and friendships were directly and indirectly associated with the development of newcomer immigrant youths' academic engagement. We used data from three waves (Years 3–5) of the Longitudinal Immigrant Student Adaptation study where a culturally diverse group of immigrant youth (N = 354, ages 10–17, MtimeinUS = 3.98 years, SD = 1.39) in the United States reported on their perceptions of parent home involvement (educational values and communication) and friendship (educational values and academic support) in Year 3 and on their academic engagement (behavioural and emotional) across 3 years. Findings showed high-stable behavioural and emotional engagement and direct positive associations between perceptions of parent home involvement and initial levels of behavioural and emotional engagement and between perceptions of friend educational values and initial levels of emotional engagement. Additionally, perceptions of parents' educational values indirectly contributed to initial levels of emotional engagement through positive associations with perceptions of friends' educational values. These findings can inform family–school partnerships and school-interventions targeting newcomer immigrant youths' engagement. 相似文献
956.
Brooke M. Smith Gregory S. Smith Simon Dymond 《Journal of the experimental analysis of behavior》2020,113(1):87-104
Excessive fear and avoidance in relatively safe situations can lead to a narrowing of one's behavioral repertoire and less engagement with valued aspects of living. Ultimately, these processes can reach clinical levels, as seen in anxiety, trauma, and obsessive–compulsive disorders. Research on the basic behavioral processes underlying successful treatment with exposure therapy is growing, yet little is known about the mechanisms contributing to clinical relapse. Until recently, these mechanisms have largely been conceptualized in terms of Pavlovian return of fear, with relatively little research into operant processes. In the current paper, we briefly review translational research in anxiety disorders and the connections between fear and avoidance, focusing on recent work in the acquisition, extinction, and relapse of avoidance behavior and the generalization of this learning through arbitrary symbolic relations. We then introduce one possible treatment approach to mitigating clinical relapse, acceptance and commitment therapy (ACT), and provide a conceptual analysis for why ACT may be especially well-situated to address this issue. Finally, we end with potential directions for future research on treatment and relapse of anxiety disorders. 相似文献
957.
Among theories of human language comprehension, cue-based memory retrieval has proven to be a useful framework for understanding when and how processing difficulty arises in the resolution of long-distance dependencies. Most previous work in this area has assumed that very general retrieval cues like [+subject] or [+singular] do the work of identifying (and sometimes misidentifying) a retrieval target in order to establish a dependency between words. However, recent work suggests that general, handpicked retrieval cues like these may not be enough to explain illusions of plausibility (Cunnings & Sturt, 2018), which can arise in sentences like The letter next to the porcelain plate shattered. Capturing such retrieval interference effects requires lexically specific features and retrieval cues, but handpicking the features is hard to do in a principled way and greatly increases modeler degrees of freedom. To remedy this, we use well-established word embedding methods for creating distributed lexical feature representations that encode information relevant for retrieval using distributed retrieval cue vectors. We show that the similarity between the feature and cue vectors (a measure of plausibility) predicts total reading times in Cunnings and Sturt’s eye-tracking data. The features can easily be plugged into existing parsing models (including cue-based retrieval and self-organized parsing), putting very different models on more equal footing and facilitating future quantitative comparisons. 相似文献
958.
Lauren N. Miley Ellie Heiss-Moses John K. Cochran Kathleen M. Heide Sondra J. Fogel M. Dwayne Smith Beth J. Bejerregaard 《Behavioral sciences & the law》2020,38(4):381-405
Mentally ill and emotionally disturbed offenders comprise a significant component of those whose criminal conduct has swept them into the criminal justice system, including a subset who are tried and convicted of capital murder. The present study employs the population of capital cases advanced to penalty phase in the state of North Carolina (1990–2009) to examine whether presentation to the jury of the statutory mitigators of extreme mental and emotional disturbance and capacity impaired, and specific mental illness diagnoses, often referred to as mental disorders, at the sentencing phase mitigate against a sentence of death. Mental disorders included mood disorders, psychotic disorders, anxiety disorders, brain disorders, multiple mental illness diagnoses, learning disabilities, and personality disorders. Results from these 835 cases indicate that with the exception of one, the diagnosis of a learning disability, the capital jury's acceptance of various mental health conditions does not effectively mitigate against a capital sentence. In addition, jury rejection of a diagnosis of mental illness or the two mental health statutory mitigators, capacity impaired and extreme emotional disturbance, as a mitigating factor has a counter-mitigating effect in that it significantly increases the odds of a death penalty recommendation by about 85–200%. 相似文献
959.
Michael T. Kalkbrenner Christopher A. Sink Jessica L. Smith 《Journal of counseling and development : JCD》2020,98(2):172-182
Mental health literacy (MHL) has utility for promoting peer-to-peer referrals to mental health support services among university students. However, there is a gap in the extant literature about the potential usefulness of MHL for supporting the mental health of community college students, a population facing a number of mental health conditions. The authors examined the construct validity and the utility of 3 dimensions of MHL as predictors of peer-to-peer referrals to the counseling center among community college students. Results of confirmatory factor analyses supported the dimensionality of the instrumentation and a hierarchical logistic regression analysis revealed that MHL was a significant positive predictor of peer-to-peer referrals to the counseling center. Implications for counseling practice and future research are discussed. 相似文献
960.