全文获取类型
收费全文 | 3267篇 |
免费 | 176篇 |
国内免费 | 3篇 |
专业分类
3446篇 |
出版年
2023年 | 37篇 |
2022年 | 56篇 |
2021年 | 57篇 |
2020年 | 76篇 |
2019年 | 116篇 |
2018年 | 135篇 |
2017年 | 134篇 |
2016年 | 152篇 |
2015年 | 95篇 |
2014年 | 118篇 |
2013年 | 366篇 |
2012年 | 199篇 |
2011年 | 183篇 |
2010年 | 116篇 |
2009年 | 109篇 |
2008年 | 130篇 |
2007年 | 137篇 |
2006年 | 127篇 |
2005年 | 113篇 |
2004年 | 121篇 |
2003年 | 81篇 |
2002年 | 89篇 |
2001年 | 43篇 |
2000年 | 44篇 |
1999年 | 46篇 |
1998年 | 41篇 |
1997年 | 18篇 |
1996年 | 23篇 |
1995年 | 27篇 |
1994年 | 19篇 |
1993年 | 25篇 |
1992年 | 35篇 |
1991年 | 29篇 |
1990年 | 26篇 |
1989年 | 17篇 |
1988年 | 12篇 |
1987年 | 18篇 |
1986年 | 15篇 |
1985年 | 12篇 |
1983年 | 12篇 |
1982年 | 24篇 |
1981年 | 13篇 |
1980年 | 15篇 |
1979年 | 12篇 |
1978年 | 12篇 |
1973年 | 21篇 |
1972年 | 15篇 |
1971年 | 12篇 |
1968年 | 11篇 |
1967年 | 12篇 |
排序方式: 共有3446条查询结果,搜索用时 0 毫秒
171.
Rodrigues CS de Oliveira VZ Camargo G Osório CM de Castilhos RM Saraiva-Pereira ML Schuler-Faccini L Jardim LB 《Journal of genetic counseling》2012,21(1):101-112
Diagnostic tests are available to detect several mutations related to adult-onset, autosomal dominant, neurodegenerative diseases.
We aimed to describe our experience in a presymptomatic testing program run by the Brazilian Public Health System from 1999
to 2009. A total of 184 individuals were eligible for presymptomatic testing due to a risk for spinocerebellar ataxia (SCA)
- SCA3 (80%), Huntington’s disease (11.9%), familial amyloidotic neuropathy (4.3%), SCA1, SCA2, SCA6, or SCA7. Most were women
(70%), married (54%), and had children prior to presymptomatic testing (67%). Their mean age at entrance was 34 (SD = 11 years).
Educational level was above the average Brazilian standard. After receipt of genetic counseling, 100 individuals (54%) decided
to undergo testing; of these, 51 were carriers. Since no individual returned for post-test psychological evaluation, we conducted
a subsequent survey, unrelated to test disclosures. We contacted 57 individuals of whom 31 agreed to participate (24 had been
tested, 7 had not). Several ascertainment concerns relating to these numerous losses prevented us from generalizing our results
from this second survey. We concluded that: decision-making regarding presymptomatic testing seems to be genuinely autonomous,
since after genetic counseling half the individuals who asked for presymptomatic testing decided in favor and half decided
against it; general characteristics of Brazilians who sought presymptomatic testing were similar to many European samples
studied previously; and individuals at risk for SCA3 may be at greater risk of depression. Although no clear-cut reason emerged
for rejection of follow-up psychological sessions after presymptomatic testing, this finding suggests adjustments to our presymptomatic
testing program are necessary. 相似文献
172.
Mackner LM Vannatta K Crandall WV 《Journal of clinical psychology in medical settings》2012,19(3):270-276
Inflammatory bowel disease (IBD) has been associated with social difficulties. Boys with IBD may have increased risk for social problems due to delayed growth and puberty, but gender differences in social functioning have not been investigated. This study examined gender differences in multiple areas of social functioning for adolescents with IBD compared to healthy adolescents. Participants were 92 adolescents 11-17?years (50 with IBD, 42 healthy) and parents who completed questionnaires assessing social functioning. IBD was associated with poorer social functioning in the areas of social competence and social problems. Boys with IBD had worse social competence, with no gender differences for social problems. Gender predicted the use of social contact as a coping strategy, but no significant group differences were found for other areas of social functioning. Adolescents with IBD experience significant social difficulties in some areas, and boys are at risk for poor social competence. However, previously reported social difficulties may not extend to all areas of social functioning. 相似文献
173.
Affording Emerging Adulthood: Parental Financial Assistance of their College-Aged Children 总被引:1,自引:0,他引:1
Laura M. Padilla-Walker Larry J. Nelson Jason S. Carroll 《Journal of Adult Development》2012,19(1):50-58
The purpose of this study was to examine parents’ attitudes about and patterns of providing financial assistance to their
children during college, and how varying levels of parental financial support were related to children’s beliefs (e.g., perceptions
of adulthood), behaviors (e.g., work hours, drinking, and drug use), and identity development. The sample consisted of 402
undergraduate students (62% women) recruited from four college sites across the United States (M age = 19.89), and one of their parents (310 mothers and 92 fathers). Using cluster analysis, results suggested four distinct
approaches to parental financial involvement and found that emerging adults’ beliefs, behaviors, and identity development
differed as a function of parents’ cluster membership. Discussion focuses on implications for emerging adult children whose
parents endorse varying levels of financial involvement. 相似文献
174.
Sburlati ES Lyneham HJ Mufson LH Schniering CA 《Clinical child and family psychology review》2012,15(2):93-112
In order to treat adolescent depression, a number of empirically supported treatments (ESTs) have been developed from both
the cognitive behavioral therapy (CBT) and interpersonal psychotherapy (IPT-A) frameworks. Research has shown that in order
for these treatments to be implemented in routine clinical practice (RCP), effective therapist training must be generated
and provided. However, before such training can be developed, a good understanding of the therapist competencies needed to
implement these ESTs is required. Sburlati et al. (Clin Child Fam Psychol Rev 14:89–109, 2011) developed a model of therapist competencies for implementing CBT using the well-established Delphi technique. Given that
IPT-A differs considerably to CBT, the current study aims to develop a model of therapist competencies for the implementation
of IPT-A using a similar procedure as that applied in Sburlati et al. (Clin Child Fam Psychol Rev 14:89–109, 2011). This method involved: (1) identifying and reviewing an empirically supported IPT-A approach, (2) extracting therapist competencies
required for the implementation of IPT-A, (3) consulting with a panel of IPT-A experts to generate an overall model of therapist
competencies, and (4) validating the overall model with the IPT-A manual author. The resultant model offers an empirically
derived set of competencies necessary for effectively treating adolescent depression using IPT-A and has wide implications
for the development of therapist training, competence assessment measures, and evidence-based practice guidelines. This model,
therefore, provides an empirical framework for the development of dissemination and implementation programs aimed at ensuring
that adolescents with depression receive effective care in RCP settings. Key similarities and differences between CBT and
IPT-A, and the therapist competencies required for implementing these treatments, are also highlighted throughout this article. 相似文献
175.
Objective: To empirically identify the appropriate symptom threshold for hyperactivity-impulsivity for diagnosis of ADHD in adults. Method: Participants were 88 adults (M [SD] age = 41.69 [11.78] years, 66% female, 16% minority) meeting formal DSM-IV criteria for ADHD combined or predominantly inattentive subtypes based on a structured diagnostic interview keyed to DSM-IV (Conners' Adult ADHD Diagnostic Interview for DSM-IV [CAADID]). All participants also completed the Conners' Adult ADHD Rating Scale (CAARS), which was normed on the general adult population and includes subscales for DSM-IV inattentive and DSM-IV hyperactive-impulsive symptoms. A T-score threshold of 65 (at least 1.5 SD above population mean) on the CAARS DSM-IV hyperactive-impulsive dimension was used to identify participants with empirically elevated symptom severity. Results: Of 88 participating adults, 48 (55%) had a T-score of at least 65 (1.5 SD) on the CAARS DSM-IV Hyperactive-Impulsive scale. Of these, only 25 (52%) met the DSM-IV cutoff of six hyperactive-impulsive symptoms on the CAADID. Thus, approximately half of those who reported empirically elevated hyperactive-impulsive complaints on the CAARS did not concurrently meet the six-symptom DSM-IV cutoff on the CAADID. An alternative cutoff of four hyperactive-impulsive symptoms on the CAADID captured 39 (81%) cases identified by the CAARS. Conclusion: In adults, mandating at least six hyperactive-impulsive symptoms excludes a significant percentage (almost half) of adults who are at least 1.5 SD above the population mean on a dimensional measure of hyperactivity-impulsivity. These data provide a compelling basis for lowering the symptom threshold of hyperactivity-impulsivity for adults in the DSM-5. 相似文献
176.
A coherent psychoanalytic theory of violence has been hindered by the very few psychoanalysts who have actually worked with violent patients, by political allegiance to certain psychoanalytic schools of thought, a naïve belief that all violence is typically not intentional, but rather a problem of impulse control, and the lack of understanding of recent neurobiological findings concerning aggression. Although intensive psychoanalytic treatment is usually not appropriate for violent individuals, the authors assert that a comprehensive understanding of violent behavior from a psychoanalytic perspective is of relevance for all mental health practitioners interested in the nature of human aggression. Actual violence is informed by bodily enactments and regressions to primitive subjective states; the effects of trauma on representation and symbolic functioning; the demarcation between affective and predatory violence; and understanding how all of our mental processes, including cognitions, wishes, memories, unconscious phantasies, ego-defenses, and object relations, are originally rooted in the body. The authors review the historical psychoanalytic literature on violence and critique contemporary psychoanalytic theorizing regarding the etiology of violent behavior in the light of some neurobiological research findings. They conclude with treatment recommendations for those clinicians whose patients have been violent toward others. 相似文献
177.
According to the rapid auditory processing theory, the ability to parse incoming auditory information underpins learning of oral and written language. There is wide variation in this low-level perceptual ability, which appears to follow a protracted developmental course. We studied the development of rapid auditory processing using event-related potentials (ERPs) elicited by tone pairs presented at varying inter-stimulus intervals (25, 50, 100, 200, and 400 ms) in a sample of children (N = 103) aged 7-9 years initially and again at 9-11 years. We also assessed their ability to repeat nonsense words at both time-points. The amount of difference between the ERP to single tones and paired tones (as assessed by the intra-class correlation coefficient, ICC) provided a measure of the brain's capacity to discriminate auditory information delivered at different presentation rates. Results showed that older children showed greater neural discrimination to tone pairs than younger children at rapid presentation rates, although these differences were reduced at slower presentation rates. The ICC at time 1 significantly predicted nonword repetition scores two years later, providing support for the view that rapid auditory temporal processing ability affects oral language development in typically developing children. 相似文献
178.
179.
Laura Bortoli Maurizio Bertollo Yuri Hanin Claudio Robazza 《Psychology of sport and exercise》2012,13(5):693-701
ObjectivesA multi-action plan (MAP) intervention model has been applied to the Italian shooting team in preparation for the London 2012 Olympics to help athletes improve, stabilise, and optimise their performances during practice and competition.DesignA longitudinal design was adopted to assess the intervention effects over two years.MethodsFifteen participants, two female and three male carbine shooters, and five female and five male pistol shooters, took part in the study. First, shooters were requested to accurately and extensively describe their usually optimal sequence of actions for the execution of a single shot from start to follow-through. Second, shooters were asked to identify a small number of the most important core components (three or four) deemed fundamental to optimal performance. Third, performers were engaged in several shooting sessions and asked to assess themselves by rating the quality of each core component. Finally, the most influential core components were further assessed under conditions of increased distress and simulated competition.ResultsCore component ratings were linked to shooting scores classified as optimal or suboptimal. The probability levels of optimal/suboptimal performance associated with the core component ratings were derived using logistical ordinal regression analysis. The full links among core component scores and the full range of shooting scores were also examined through path analysis.ConclusionsFindings highlighted the benefits of using the MAP intervention model in the preparation of elite level shooters. 相似文献