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101.
Ruth Brookman Marina Kalashnikova Janet Conti Nan Xu Rattanasone Kerry-Ann Grant Katherine Demuth Denis Burnham 《Child development》2020,91(6):e1211-e1230
This longitudinal study investigated the effects of maternal emotional health concerns, on infants’ home language environment, vocalization quantity, and expressive language skills. Mothers and their infants (at 6 and 12 months; 21 mothers with depression and or anxiety and 21 controls) provided day-long home-language recordings. Compared with controls, risk group recordings contained fewer mother–infant conversational turns and infant vocalizations, but daily number of adult word counts showed no group difference. Furthermore, conversational turns and infant vocalizations were stronger predictors of infants’ 18-month vocabulary size than depression and anxiety measures. However, anxiety levels moderated the effect of conversational turns on vocabulary size. These results suggest that variability in mothers’ emotional health influences infants’ language environment and later language ability. 相似文献
102.
Family Reading Behavior and Early Literacy Skills in Preschool Children From Low-Income Backgrounds 总被引:1,自引:0,他引:1
This study investigated the family reading behavior of 233 preschool children from low-income backgrounds who were attending Head Start. Parents completed a survey of their family reading behavior, including Child Reading, Parent Reading Interest, and Parent-Child Reading Interaction, and provided demographic data on their educational level, parent and child age, and family size. Children's receptive vocabulary, story and print concepts, letter knowledge, and general emergent literacy skills were assessed in the fall of their preschool year. Analyses focused on the variation in family reading behavior, the relationship between different dimensions of family reading behavior, and the contribution of family reading behavior to early literacy skills. Results indicated that Parent-Child Reading Interaction and Child Reading Interest were significantly related to children's early literacy skills. In addition, multiple regression analyses indicated that Parent-Child Reading Interaction was a small yet significant predictor of children's receptive vocabulary, story and print concepts, and general emergent literacy skills, above and beyond the influence of demographic variables. Child Reading Interest was a significant, albeit small, predictor of letter knowledge above and beyond these demographic controls. Implications of these results for the early literacy education of children of low-income families are discussed. 相似文献
103.
The differences between US (Ohio) gifted and talented high school students and South Korean gifted and talented high school students on the Overexcitabilities Questionnaire II (OEQ II) were investigated. The OEQ II was administered to 227 Ohio identified gifted and talented high school students (M = 88, F = 139) and to 341 high school students from four specialized high schools (one for science, one for foreign language, and two for the arts) in Seoul, Korea (M = 117; F = 224). Multiple analysis of variance by gender and country revealed that Korean males and females scored higher in psychomotor OE and that US males and females scored higher in imaginational OE. No differences were found in intellectual OE, emotional OE, or sensual OE. 相似文献
104.
105.
This study examines the ways in which preschool teachers support the development of children's explanatory language through science inquiry. Two classrooms in a preschool center using a science inquiry curriculum were videotaped during a 5-week unit on color mixing. Videotapes were analyzed for how teachers facilitated children's explanatory language. An assessment of explanatory language was administered to 47 children in the center before and after the color mixing unit. Analysis of discourse revealed that teachers engaged children as conversational partners and as scientific investigators responsible for their own learning. Explanations were dynamically co-constructed by adults and children within the context of participation in scientific inquiry. By the end of the unit, children produced more on-topic responses, more standard color-mixing terms, and more causal connectives in their responses to the assessment of explanatory language. 相似文献
106.
Peter Baldwin Victoria Yaneva Janet Mee Brian E. Clauser Le An Ha 《Journal of Educational Measurement》2021,58(1):4-30
In this article, it is shown how item text can be represented by (a) 113 features quantifying the text's linguistic characteristics, (b) 16 measures of the extent to which an information‐retrieval‐based automatic question‐answering system finds an item challenging, and (c) through dense word representations (word embeddings). Using a random forests algorithm, these data then are used to train a prediction model for item response times and predicted response times then are used to assemble test forms. Using empirical data from the United States Medical Licensing Examination, we show that timing demands are more consistent across these specially assembled forms than across forms comprising randomly‐selected items. Because an exam's timing conditions affect examinee performance, this result has implications for exam fairness whenever examinees are compared with each other or against a common standard. 相似文献
107.
A fractal approximation algorithm for inverse initial-value problems of nonlinear differential equations 总被引:1,自引:0,他引:1
唐艳 《重庆大学学报(英文版)》2003,2(2)
1. Introduction Initial-value problems (IVP) for the differential equations are often confronted with in many fields of science, and are particularly common in engineering. These problems are characterized by a governing differential equation and its associated initial conditions. Methods for solving direct IVP have been known for many decades in the area of differential equation. A few of the more popular methods of solution have proven to provide sufficient and even efficient mechanisms … 相似文献
108.
109.
Stuart Copans Helen Krell John Gundy Frances Field Janet Rogan 《Child abuse & neglect》1979,3(1):123-130
A wide range of health workers in the community provide care for families that abuse or have a potential for abusing their children. Frequently these workers are unable to work effectively because of difficulty dealing with feelings aroused by contact with such families.An experimental child abuse training program for community health workers was designed by a pediatrician, a social worker, a public health nurse and two child psychiatrists. This program included a six-month study group which met weekly to focus on feelings and conflcts aroused during the course of work with abusing or potentially abusing families.Through analysis of the group experience, the leaders identified eleven sets of feelings or conflicts which seemed to interfere consistently with effective delivery of care: 1)anxieties about a) being physically harmed by angry parents and b) about the effects of a decision; 2) denial and inhibition of anger; 3) need for emotional gratification from clients; 4) lack of professional support; 5) feelings of incompetence; 6) denial and projection of responsbility; 7) feeling total responsibility for assigned families; 8) difficulty separating personal from professional responsibility; 9) feelings of being a victim; 10) ambivalent feelings a) toward clients and b) about one's professional role; 11) need to be in control.This type of group experience seems to be an effective method for exploration and resolution of feelings and conflicts. 相似文献
110.
Tip-of-the-Tongue experiences (TOTs) are often accompanied by incorrect answers (blockers) that come to mind persistently
and seem to block recall. According to the blocking hypothesis, blockers cause retrieval difficulty during TOTs. We predicted
that delay would allow participants to forget their blockers, and thereby enhance TOT resolution. In Experiment 1 participants
were asked trivia questions and then retested on the ones that elicited TOTs, either immediately or after a delay. There was
an incubation effect overall, with greater TOT resolution after a delay than on an immediate test. Contrary to the blocking
hypothesis, however, delay did not enhance resolution of blocked TOTs more than non-blocked TOTs. In Experiment 2, during
the retest, participants were reminded of their previous blockers on some questions, but the reminders did not affect TOT
resolution. These findings suggest that blockers may be a side effect, not a cause, of retrieval difficulty during TOTs.
This paper is based on the first author’s Master’s thesis. 相似文献