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The main purposes of this research were twofold. We examined the samenesses about learning disabilities (LD) in Guatemala and Spain, two countries with the same language but cultural, political, and educational differences, first analyzing data about the prevalence of reading and spelling disabilities in Guatemala City and the Spanish region of the Canary Islands. The focus of the second study was to determine whether there are cross‐national patterns of significant differences in cognitive processes associated with reading and spelling disabilities from a developmental approach in these two cultural contexts. We found some differences in the prevalence of specific LD in reading between both countries but we did not find significant differences between Guatemalan and Spanish reading‐disabled children in cognitive processes that are involved in reading and spelling acquisition in spite of the cultural and educational differences between the two countries.  相似文献   
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The present study aims to assess comorbidity of posttraumatic stress disorder (PTSD) in anxiety and depressive disorders and to determine whether childhood trauma types and other putative independent risk factors for comorbid PTSD are unique to PTSD or shared with anxiety and depressive disorders. The sample of 2402 adults aged 18–65 included healthy controls, persons with a prior history of affective disorders, and persons with a current affective disorder. These individuals were assessed at baseline (T0) and 2 (T2) and 4 years (T4) later. At each wave, DSM-IV-TR based anxiety and depressive disorder, neuroticism, extraversion, and symptom severity were assessed. Childhood trauma was measured at T0 with an interview and at T4 with a questionnaire, and PTSD was measured with a standardized interview at T4. Prevalence of 5-year recency PTSD among anxiety and depressive disorders was 9.2%, and comorbidity, in particular with major depression, was high (84.4%). Comorbidity was associated with female gender, all types of childhood trauma, neuroticism, (low) extraversion, and symptom severity. Multivariable significant risk factors (i.e., female gender and child sexual and physical abuse) were shared among anxiety and depressive disorders. Our results support a shared vulnerability model for comorbidity of anxiety and depressive disorders with PTSD. Routine assessment of PTSD in patients with anxiety and depressive disorders seems warranted.  相似文献   
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There is a major debate in the scholarly literature on whether early vocalizations imitate the mother tongue (L1) and whether prosody is an emerging feature of intentional communication. This longitudinal study explores the combinatory patterns of gestures and vocalizations of four Basque children aged 0:7 to 1:1 in the protoconversational stage. A total of 1,043 communicative acts were labelled (noting the kind of communication, the eye contact and the type of gestures), in which a total of 581 vocalizations were pragmatically and acoustically codified (marking the length and tonal range). The results showed that before they produce their first words, the children show a predominant pattern, tending to combine the deictic gestures with eye contact with the interlocutor. Furthermore, the children are capable of choosing specific prosodic signals — such as length and tonal range — to expression the intentionality of their vocalizations. This suggests that some prosodic features work as procedural antecedents in the process of constructing oral compositions.  相似文献   
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Theory-of-mind (ToM) abilities were studied in 176 deaf children aged 3 years 11 months to 8 years 3 months who use either American Sign Language (ASL) or oral English, with hearing parents or deaf parents. A battery of tasks tapping understanding of false belief and knowledge state and language skills, ASL or English, was given to each child. There was a significant delay on ToM tasks in deaf children of hearing parents, who typically demonstrate language delays, regardless of whether they used spoken English or ASL. In contrast, deaf children from deaf families performed identically to same-aged hearing controls (N=42). Both vocabulary and understanding syntactic complements were significant independent predictors of success on verbal and low-verbal ToM tasks.  相似文献   
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Previous studies have shown that instruction of reading strategies is an effective method for enhancing reading comprehension. However, many of the interventions in these studies focused on small groups of (poor) comprehenders and were provided by research assistants, making it time-consuming and relatively expensive. The authors implemented a strategy intervention to intact classrooms, consisting of reciprocal teaching and delivered by teachers. Participants were 510 typically developing fourth-grade students. A clustered randomized controlled trial was conducted with pretest, posttest, and follow-up measures to assess knowledge of reading strategies and reading comprehension. The results revealed that the intervention had an effect on knowledge of reading strategies at posttest and follow-up. However, the intervention did not affect reading comprehension performance. Together with the results of earlier studies, the present study raises the question whether strategy interventions are the most efficient to improve fourth-grade students' reading comprehension.  相似文献   
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Improving healthcare services in the developing world remains a major goal for many organizations and despite enormous training and program investments from international organizations, service improvements have been modest. This study looks at how to improve results by examining the relationship between the conditions in a healthcare providers' work environment and his or her performance. Drawing upon a human performance model that assumes that performance expectations, timely feedback, adequate environment, incentives, and skills and knowledge are required for a worker to perform well, this study explores how these conditions might affect healthcare provider performance in four countries. The study successfully shows that although multiple conditions were deficient or missing in every country, significant association is found between the performance of workers and conditions in the workers environment. Further, when viewed across all countries, non‐monetary incentives is the most powerful “predictor‘ of performance when compared with other factors. Of particular interest to Performance Improvement practitioners, knowledge and skills surfaced as important in only three of eight possible cases (with multiple cases in each country)—the least influential factor overall.  相似文献   
90.
Reconciliation, defined as a friendly reunion between former opponents shortly after an aggressive encounter, is common in the stumptail macaque (Macaca arctoides) but rare in the rhesus macaque (M. mulatta). Juveniles of the two species were cohoused for 5 months, after which they were observed with conspecifics only. Control rhesus monkeys, matched in age and sex to the experimental subjects, went through the same procedure without exposure to the other species. A threefold increase in the proportion of reconciled fights was measured in the rhesus subjects. The difference emerged gradually during cohousing with the tutor species and was sustained following removal of this species. Other behavior, such as grooming and aggression, decreased over time. It is suggested that the social attitude of the subjects was affected through contact with a species characterized by a more relaxed dominance style.  相似文献   
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