全文获取类型
收费全文 | 31001篇 |
免费 | 1057篇 |
国内免费 | 17篇 |
出版年
2020年 | 291篇 |
2019年 | 330篇 |
2018年 | 1839篇 |
2017年 | 1702篇 |
2016年 | 1357篇 |
2015年 | 411篇 |
2014年 | 413篇 |
2013年 | 1831篇 |
2012年 | 1008篇 |
2011年 | 1846篇 |
2010年 | 1542篇 |
2009年 | 1040篇 |
2008年 | 1370篇 |
2007年 | 1611篇 |
2006年 | 533篇 |
2005年 | 526篇 |
2004年 | 507篇 |
2003年 | 463篇 |
2002年 | 458篇 |
2001年 | 899篇 |
2000年 | 893篇 |
1999年 | 600篇 |
1998年 | 233篇 |
1997年 | 217篇 |
1996年 | 185篇 |
1993年 | 188篇 |
1992年 | 466篇 |
1991年 | 421篇 |
1990年 | 443篇 |
1989年 | 416篇 |
1988年 | 399篇 |
1987年 | 373篇 |
1986年 | 396篇 |
1985年 | 392篇 |
1984年 | 318篇 |
1983年 | 265篇 |
1981年 | 184篇 |
1979年 | 297篇 |
1978年 | 215篇 |
1976年 | 187篇 |
1975年 | 261篇 |
1974年 | 337篇 |
1973年 | 286篇 |
1972年 | 277篇 |
1971年 | 242篇 |
1970年 | 219篇 |
1969年 | 277篇 |
1968年 | 268篇 |
1967年 | 246篇 |
1966年 | 231篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
A D Pick C F Palmer B L Hennessy M G Unze R K Jones R M Richardson 《Journal of experimental child psychology》1988,45(1):28-51
Children's perception of scale and contour in melodies was investigated in five studies. Experimental tasks included judging transposed renditions of melodies (Studies 1 and 3), discriminating between transposed renditions of a melody (Study 2), judging contour-preserving transformations of melodies (Study 4), and judging similarity to a familiar target melody of transformations preserving rhythm or rhythm and contour (Study 5). The first and second studies showed that young children detect key transposition changes even in familiar melodies and they perceive similarity over key transpositions even in unfamiliar melodies. Young children also are sensitive to melodic contour over transformations that preserve it (Study 5), yet they distinguish spontaneously between melodies with the same contour and different intervals (Study 4). The key distance effect reported in the literature did not occur in the tasks of this investigation (Studies 1 and 3), and it may be apparent only for melodies shorter or more impoverished than those used here. 相似文献
72.
Effects of Social Demand on Reports of Self-Monitored Blood Glucose in Adolescents with Type 1 Diabetes Mellitus 总被引:2,自引:0,他引:2
Alan M. Delamater Steven M. Kurtz Neil H. White Julio V. Santiago 《Journal of applied social psychology》1988,18(6):491-502
The purpose of this study was to test the hypothesis that social demand could substantially affect reports of self-monitored blood glucose (BG) in adolescents with insulin-dependent diabetes mellitus. Of 34 patients initially enrolled in the study, 10 were excluded because they did not bring any BG records with them to an outpatient clinic appointment. The remaining 24 patients were randomly assigned to either a low or high social demand condition that provided instructions for monitoring of BG for the week following the appointment. The subjects' BG records were quantified to provide frequency of measurement and mean reported BG for the week prior to and after the clinic visit. Five subjects did not return their BG records for the week following the intervention. The analyses were therefore based on the 19 subjects from whom complete records were obtained. The 12 subjects in the low social demand group and 7 subjects in the high social demand group were equivalent with regard to age, duration of diabetes, socioeconomic status, and glycosylated hemoglobin. Frequency of BG measurement was similar in both groups during both weeks. The mean BG value reported in the week prior to intervention was similar for the groups. However, analyses of the post-intervention BGs revealed that subjects in the low-demand group reported significantly higher BGs compared to pre-intervention and to subjects in the high-demand group. These findings suggest that self-monitoring and reporting of BG is a social behavior that is affected by the demand characteristics of the interpersonal patient-health provider relationship. Because optimal treatment planning for individuals with diabetes requires accurate BG records, care must be taken to interpret them in light of the social demand characteristics associated with clinical assessment. 相似文献
73.
74.
Although peers' and teachers' evaluations of children's prosocial behavior and peers' sociometric ratings frequently have been used in studies of social development, the validity of young children's ratings of others has been questioned, as has that for teachers' ratings of prosocial behavior. In this study, preschoolers' ratings of peers' sociometric status and prosocial behavior, as well as teachers' ratings of children's prosocial dispositions, were obtained. These were correlated with children's naturally occurring prosocial or social behavior; ratings of prosocial behavior also were correlated with children's prosocial moral reasoning and prosocial self-attributions. Peers' sociometric ratings were positively related to children's sociability whereas prosocial ratings were related to helping (but not sharing) behavior. Teachers' ratings of prosocial behavior were not related to frequency of prosocial behaviors, but were positively related to developmentally mature moral judgments and self-reported motives. 相似文献
75.
Training in systemic therapy necessitates a structured approach to teaching systemic thinking. The Systemic Therapy Sessions Summary Form, a record-keeping method, is presented as a tool for enhancing training in systemic therapy. The purpose of this form is to provide the structure for the trainee to develop circular hypotheses, to connect reflexively the assessment and intervention components of therapy, and to maintain a sense of the evolving nature of therapy across sessions. A case example illustrates the use of this record-keeping format. 相似文献
76.
77.
78.
79.
80.
V E Whiffen 《Journal of abnormal psychology》1988,97(4):467-474