全文获取类型
收费全文 | 44015篇 |
免费 | 1030篇 |
国内免费 | 12篇 |
出版年
2020年 | 279篇 |
2019年 | 327篇 |
2018年 | 3821篇 |
2017年 | 3192篇 |
2016年 | 2687篇 |
2015年 | 616篇 |
2014年 | 560篇 |
2013年 | 2205篇 |
2012年 | 1323篇 |
2011年 | 3088篇 |
2010年 | 2895篇 |
2009年 | 1870篇 |
2008年 | 2258篇 |
2007年 | 2748篇 |
2006年 | 585篇 |
2005年 | 709篇 |
2004年 | 650篇 |
2003年 | 595篇 |
2002年 | 545篇 |
2001年 | 796篇 |
2000年 | 816篇 |
1999年 | 578篇 |
1998年 | 257篇 |
1997年 | 226篇 |
1996年 | 242篇 |
1992年 | 463篇 |
1991年 | 450篇 |
1990年 | 440篇 |
1989年 | 410篇 |
1988年 | 424篇 |
1987年 | 383篇 |
1986年 | 391篇 |
1985年 | 388篇 |
1984年 | 316篇 |
1983年 | 284篇 |
1982年 | 216篇 |
1981年 | 212篇 |
1979年 | 357篇 |
1978年 | 261篇 |
1977年 | 221篇 |
1975年 | 287篇 |
1974年 | 361篇 |
1973年 | 370篇 |
1972年 | 296篇 |
1971年 | 289篇 |
1970年 | 291篇 |
1969年 | 256篇 |
1968年 | 353篇 |
1967年 | 313篇 |
1966年 | 291篇 |
排序方式: 共有10000条查询结果,搜索用时 203 毫秒
801.
Lozoff B Park AM Radan AE Wolf AW 《International journal of behavioral development》1995,18(2):277-295
It has been established through several decades of research that children's home environments significantly influence their development. Many researchers have also been interested in expanding research beyond indirect measures of the home environment, such as socioeconomic status, to help understand the nature of specific environmental mechanisms which influence early behavior and cognitive development. The Home Observation for Measurement of the Environment (HOME) Inventory was developed to meet these needs. Specifically, HOME measures the quality of stimulation in a child's early family environment. Almost all studies of the approach's reliability and validity have been conducted with US samples. HOME is, however, being used in other countries. The authors report their findings from a study of whether the psychometric properties of HOME based upon US samples parallel those found in Costa Rica, and whether HOME discriminates between Costa Rican environments with different associations to child health and development. Focus centers upon the infant/toddler version of the HOME Inventory. HOME data for 183 healthy Costa Rican infants were compared to the original HOME standardization sample from Little Rock, Arkansas. The study found the HOME Inventory to be helpful in identifying children at risk for delayed development in this Latin American sample. Lower HOME scores related to a shorter duration of breastfeeding and differentiated children with iron deficiency anemia in infancy, a condition associated with long-lasting developmental disadvantage. 相似文献
802.
Gender role perceptions of five objects—Ideal Woman, Ideal Man, Most Women, Most Men and Self—were elicited from 3300 university students, 81% of whom were Caucasian, with 7% Hispanic, 6% African-American, and 4% Asian. Profiles of student responses for the five objects provided a comprehensive updating of 1970s research on student gender roles. Women (N= 1842) and men (N= 1148) students generally preferred an androgynous Ideal Woman. Women also preferred an androgynous Ideal Man, but men preferred a masculine sex-typed Ideal Man. Women and men's perceptions of Most Women and Men continued to be sex-typed. Men's self perceptions were androgynous, while women saw themselves as feminine sex-typed. Findings suggest that little change in students' gender role perceptions has occurred in the past 15 years. 相似文献
803.
804.
805.
806.
RESOLUTION OF LEXICAL AMBIGUITY BY EMOTIONAL STATE 总被引:2,自引:0,他引:2
Abstract— The role of emotion in the resolution of lexical ambiguity was investigated. Happy and sad subjects listened to a list of words that included homophones that had happy and neutral meanings (eg., presents-presence ) and homophones that had sad and neutral meanings (eg., mourning-morning ). Words were presented every 3 s, and subjects wrote down the words, as they heard them (Meaning could be identified by spelling in all cases). An interaction between emotional state and homophone category was observed. Sad subjects were more likely to write down sad meanings than were happy subjects. Results are discussed with reference to the literatures on both emotion and lexical access. 相似文献
807.
E. Wayne Holden Wendy B. Schuman 《Journal of clinical psychology in medical settings》1995,2(1):71-87
We reviewed the literature on the detection and management of mental health disorders within the context of pediatric primary care. Pediatricians have displayed a low sensitivity and high specificity in research investigating the detection of mental health impairment in children. Active management efforts characterize approaches to identified cases with more recently trained primary care pediatricians displaying a wider range of skills in managing mental health disorders. Few efforts have been made by pediatric psychologists to develop strategies for enhancing detection rates and management or to empirically evaluate the integration of pediatric psychology services into the primary care context. A conceptual model of factors influencing detection rates and ongoing management of mental health disorders within pediatric primary care is presented. Recommendations are made for more direct involvement of pediatric psychologists within the primary care context. 相似文献
808.
Parenting a child with ADHD can challenge parenting resources and coping. Increasingly, researchers are examining the relationship between the behavior of the child with ADHD and family functioning. While studies have shown inceased parenting stress in parents of children with ADHD, these studies have compared children with ADHD to non-disabled children. This study compares reports of parenting stress among mothers of children with ADHD, mothers of children with learning disabilities and mothers of non-referred children. Results showed that parenting stress was highest for mothers of children with ADHD. Increased parenting stress was associated with child characteristics and, in particular, with externalizing behavior problems. 相似文献
809.
We identified two characteristics of the impression formation process that may cause people to underestimate the riskiness of potential sexual partners. In Study 1, participants were quite confident that they could determine whether someone was lying to them about risk-related behavior when, in reality, they could not. Particularly troubling was a “truth bias” that resulted in relatively high rates of truth detection, but poor lie detection. In Study 2, increased familiarity with a target person (who actually was HIV+) caused participants to lower their estimates of the target's riskiness, despite the fact that we explicitly warned them that the target might be HIV+. We suggest that such processes may foster the illusion of knowing one's partner when one does not. 相似文献
810.
Despite a variety of "non-ecumenical" features in Christian arguments about suicide, assisted suicide, and euthanasia, there are obvious "ecumenical" aspects to be found in the general Christian prohibition of these practices. A fair reading of the Christian tradition requires that we acknowledge both the differences that distinguish particular perspectives and the fundamental themes that allow an identifiably Christian position to emerge in stark contrast to the secular discussion of these issues. Central to Christian interpretations of dying and death are an acknowledgment of God's sovereignty over human life, an understanding of suffering that stresses identification with Christ as the source of Christian hope, and the recognition that God's creative and redemptive purposes are generally (or always) at odds with the deliberate choice of assisted suicide or euthanasia. 相似文献