全文获取类型
收费全文 | 15658篇 |
免费 | 694篇 |
国内免费 | 7篇 |
出版年
2020年 | 173篇 |
2019年 | 180篇 |
2018年 | 269篇 |
2017年 | 250篇 |
2016年 | 282篇 |
2015年 | 214篇 |
2014年 | 267篇 |
2013年 | 1120篇 |
2012年 | 488篇 |
2011年 | 452篇 |
2010年 | 307篇 |
2009年 | 285篇 |
2008年 | 409篇 |
2007年 | 434篇 |
2006年 | 373篇 |
2005年 | 370篇 |
2004年 | 314篇 |
2003年 | 276篇 |
2002年 | 308篇 |
2001年 | 681篇 |
2000年 | 671篇 |
1999年 | 455篇 |
1998年 | 172篇 |
1997年 | 167篇 |
1996年 | 167篇 |
1995年 | 143篇 |
1992年 | 365篇 |
1991年 | 342篇 |
1990年 | 355篇 |
1989年 | 306篇 |
1988年 | 288篇 |
1987年 | 282篇 |
1986年 | 257篇 |
1985年 | 257篇 |
1984年 | 240篇 |
1983年 | 205篇 |
1982年 | 157篇 |
1979年 | 221篇 |
1978年 | 175篇 |
1977年 | 150篇 |
1975年 | 193篇 |
1974年 | 231篇 |
1973年 | 231篇 |
1972年 | 184篇 |
1971年 | 180篇 |
1970年 | 148篇 |
1969年 | 176篇 |
1968年 | 211篇 |
1967年 | 192篇 |
1966年 | 158篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
Much of the methodology in stress research focuses on stress manifestation and organismic reactions to life’s crises. In contrast,
the present study sought to identify the major sources of stress and the nature of those sources. The results revealed a consistent
pattern in high and low stressors throughout the 3-year period of the study, and differences only of intensity between males
and females, not type of stress. Except for individuals’ temporal variations in critical events, the highest stressors for
the groups were external, primarily financial and time management. Internal sources, such as personal relationships and self-absorption,
were typically the lowest concerns. Everyday problems arising from current life styles seem to be significant sources of stress. 相似文献
122.
The authors used a correlated motion paradigm to investigate the effects of aging and gender on motion sensitivity. In 2 experiments with a total of 50 elderly and 50 young subjects, motion thresholds were significantly higher for elderly women. The correlated motion signal, which was embedded in random motion, may have been coherent to subjects in much the same way a form is in Witkin's Embedded Figures Test (EFT). In Experiment 2, EFT scores were obtained. A significant positive relationship between motion thresholds and EFT performance was found within each age group. Although gender-related perceptual style differences may contribute to motion perception effects, the authors argue that a common neural factor contributes to performance on both the EFT and the correlated motion task. 相似文献
123.
Counselors' vulnerability to inferential bias during the counseling process may result in misdiagnosis and improper interventions. This article provides readers with information regarding inferential bias. The inferential biases discussed include (a) availability and representativeness heuristics; (b) fundamental attribution error; (c) anchoring, prior knowledge, and labeling; (d) confirmatory hypothesis testing; and (e) reconstructive memory. Each bias is described and illustrated through fictitious case vignettes, and suggestions concerning what precautions counselors may do to avoid each type of bias are presented. 相似文献
124.
Gerontologists have long been concerned with the impact of individual-difference factors on memory. This study used a large sample (N = 2,495) of adult volunteers aged 18 to 90 years to determine if a set of individual-difference variables--vocabulary, education, depression, gender, marital status, and employment status--mediates the effects of aging on a wide range of laboratory-analogue tests of everyday memory. The data indicated that age was consistently the most significant predictor of memory performance, followed by vocabulary and gender. Vocabulary totally mediated age effects on a prose memory measure, and partial mediation of aging effects--primarily by vocabulary and gender--was observed on 5 other memory tests. These data suggest that when health samples of volunteers serve as research subjects, these individual differences can affect some memory test scores, but age remains the best overall predictor of memory performance. 相似文献
125.
126.
Robert T. Carter Janet E. Helms 《Journal of multicultural counseling and development》1992,20(4):181-201
Helms (1984) presented a model to explain the influence of Black and White racial identity development on counseling interactions. The purpose of this study was to examine her hypothesis that specific combinations of racial identity attitudes contribute to qualitatively different counseling process and outcome or relationship types. 相似文献
127.
This study investigated the relationship between intergenerational family relationships and Frankl's concept of meaning in life. Intergenerational family relationships were measured by the Personal Authority in the Family System Questionnaire (PAFS-QE) by Bray, Williamson, and Malone. The meaning in life variables were measured by the Life Attitude Profile-Revised (LAP-R) by Reker. This quantitative study, using the BMDP Statistical Package (Dixon, 1990), correlated the scores on various subscales from both instruments, resulting in seven statistically significant relationships. The findings, although modest, suggest the existence of a relationship between these two theoretical areas.This article is based in part on the first author's doctoral dissertation at Texas Woman's University.A copy of the PAFS-Q may be obtained from: James H. Bray, PhD, 5510 Greenbriar, Houston, TX 77005. A copy of the LAP-R may be obtained from: Gary Reker, PhD, Trent University, Psychology Department, Peterborough, Ontario Canada K9J 7B8. 相似文献
128.
129.
Nancy C. Higgins C. Alec Pollard William T. Merkel 《Current psychology (New Brunswick, N.J.)》1992,11(1):79-85
This exploratory study sought to determine whether selected religion-related factors differentiated between 86 patients with
obsessive compulsive disorder (OCD), 73 patients with panic disorder, and 292 patients with other psychiatric (non-anxiety)
disorders. A standard history questionnaire was used to obtain information from patients concerning religion of origin, involvement
in religious activities, religious conflict, and perceived religiousness of parents. It was found that the percentage of patients
who reported experiencing religious conflict was significantly higher for the OCD group than for the other two groups. Other
findings suggested associations between Catholicism and OCD and between Protestantism and panic disorder, but further research
is needed to clarify these relationships.
This article is based on a paper presented at the 98th annual convention of the American Psychological Association, Boston,
August 1990. 相似文献
130.
X B Qian O J Andy C Dearman M Andrews R W Rockhold 《Integrative Physiological and Behavioral Science》1992,27(2):117-129
A variety of abnormal sensory/motor behaviors associated with electrical discharges recorded from the bilateral brainstem were induced in adult WKY rats by mechanical (electrode implants) and DC electrical current stimulations and by acute and chronic administration of cocaine. The electrode implant implicated one side or the other of the reticular system of the brainstem but subjects were not incapacitated by the stimulations. Cocaine (40 mg/kg) was injected subcutaneously for an acute experiment and subsequent 20 mg/kg doses twice daily for 3 days in a chronic study. Cocaine generated more abnormal behaviors in the brainstem perturbation group, especially the electrically perturbated subjects. The abnormal behaviors were yawning, retrocollis, hyperactivity, hypersensitivity, "beating drum" behavior, squealing, head bobbing, circling, sniffing, abnormal posturing, and facial twitching. Shifts in the power frequency spectra of the discharge patterns were noted between quiet and pacing behavioral states. Hypersensitivity to various auditory, tactile, and visual stimulation was present and shifts in the brainstem ambient power spectral frequency occurred in response to tactile stimulation. These findings suggest that the brainstem generates and propagates pathological discharges that can be elicited by mechanical and DC electrical perturbation. Cocaine was found to activate the discharge system and thus induce abnormal behaviors that are generated at the discharge site and at distant sites to which the discharge propagates. Cognitive functions may also be involved since dopaminergic and serotonergic cellular elements at the brainstem level are also implicated. 相似文献