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101.
Todd L. Richards Virginia W. Berninger Pat Stock Leah Altemeier Pamala Trivedi Kenneth R. Maravilla 《Reading and writing》2011,24(5):493-516
During fMRI imaging, 12 good and 8 poor writers aged 11 wrote a newly taught pseudoletter and a highly practiced letter. Both
letters were formed from the same components, but the pseudoletter had a novel configuration not corresponding to a written
English letter form. On the first fMRI contrast between the newly taught pseudoletter and highly practiced letter, based on
a group map, good and poor writers significantly activated many common regions; but the poor writers showed spatially more
extensive brain activation than did the good writers. The additional regions of significant activation may reflect inefficiency
in learning a new letter form. For the second contrast between the highly practiced and newly taught letters, individual brain
activation analyses, based on exact clusters, showed that good and poor writers differed significantly in activation only
in left fusiform. This individual fusiform activation correlated significantly with behavioral measures of automatic letter
writing and expressive orthographic coding. Multiple regression in which both individual fusiform activation and individual
orthographic coding were entered explained significant variance in written composition. Results are discussed in reference
to the role of the orthographic loop, from internal letter form to external letter writing by hand, in writing letters and
composing. The overall results are consistent with prior brain and behavioral studies of writing. 相似文献
102.
103.
Acquisition, extinction, and transfer of facilitation were explored in a series of experiments with C57BL/6J mice. With a
procedure in which an auditory target was followed by food only in the presence of a visual facilitator, Experiments 1—4 showed
that the facilitator promoted magazine entries to the auditory target. This enhancement effect was eliminated by training
the facilitator as a conditioned inhibitor (Experiments 1 and 3B). Enhancement was also reduced by nonreinforced presentations
of the facilitator in a discrimination procedure (Experiment 1) and by simple nonreinforcement of the facilitator (Experiments
2, 3A, and 4). In contrast to the results obtained with a facilitator, simple nonreinforcement of an inhibitor, a visual cue
that had signaled when an auditory target would not be reinforced, did not reduce its ability to modulate responding to that
target (Experiment 4). However, both the facilitator and the inhibitor were found to transfer their modulatory effects to
other targets (Experiment 4). Finally, mice demonstrated no evidence of differential responding on a biconditional discrimination
procedure in which one auditory target (A1) was reinforced in the presence of one visual stimulus (L1) but not in the presence
of another (L2), and a different auditory target (A2) was reinforced in L2 but not in L1 (Experiment 5). The implications
of these results for analysis of the function of a facilitator are discussed. 相似文献
104.
Exploring the boundary between school science and everyday knowledge in primary school pedagogic practices 总被引:1,自引:0,他引:1
This paper explores the different ways that primary school teachers in Uganda navigate the boundary between school science and everyday knowledge in the context of a centrally mandated curriculum innovation. The paper is based on a study of the pedagogic practices of 16 teachers in eight Ugandan primary schools that were selected on the basis of having a track record of either high or low academic achievement in the public primary school‐leaving examination. The official primary school curriculum in Uganda prescribes that science be taught in an integrated form, including integration between science subject knowledge and everyday knowledge. The strategies that teachers in the study adopted in relating science to everyday knowledge was a key feature that differentiated between pedagogic practices in the high‐performing and low‐performing schools. In high‐performing schools, teachers recruited everyday knowledge as a resource for learning science as a specialised discourse; whereas in the low‐performing schools, acquiring everyday knowledge was viewed as an end in itself. The paper, then, considers the implications of differences in teachers' pedagogic strategies for the kinds of knowledge to which learners are given access. 相似文献
105.
In this paper, we report on the structural nexus of one youth??s gaming practices across contexts and over time. We utilize data from an ethnography of youth science and technology learning, as well as expertise development, across settings and developmental time. We use Ole Dreier??s theory of persons to understand how this youth is able to develop considerable gaming expertise. Additionally, we explicate the learning practices embedded in the structural nexus of this youth??s gaming and we examine associated issues of learning and identity. We problematize the lack of continuity between his formal schooling experiences and the structural nexus of his gaming practices as situated in a variety of other contexts and we reflect on the implications for the design of STEM gaming experiences in formal school environments. 相似文献
106.
Ryan M. Hulteen Lisa M. Barnett Philip J. Morgan Leah E. Robinson Christian J. Barton Brian H. Wrotniak 《Journal of sports sciences》2018,36(20):2358-2367
Numerous skill batteries assess fundamental motor skill (e.g., kick, hop) competence. Few skill batteries examine lifelong physical activity skill competence (e.g., resistance training). This study aimed to develop and assess the content validity, test-retest and inter-rater reliability of the “Lifelong Physical Activity Skills Battery”. Development of the skill battery occurred in three stages: i) systematic reviews of lifelong physical activity participation rates and existing motor skill assessment tools, ii) practitioner consultation and iii) research expert consultation. The final battery included eight skills: grapevine, golf swing, jog, push-up, squat, tennis forehand, upward dog and warrior I. Adolescents (28 boys, 29 girls; M = 15.8 years, SD = 0.4 years) completed the Lifelong Physical Activity Skills Battery on two occasions two weeks apart. The skill battery was highly reliable (ICC = 0.84, 95% CI = 0.72–0.90) with individual skill reliability scores ranging from moderate (warrior I; ICC = 0.56) to high (tennis forehand; ICC = 0.82). Typical error (4.0; 95% CI 3.4–5.0) and proportional bias (r = ?0.21, p = .323) were low. This study has provided preliminary evidence for the content validity and reliability of the Lifelong Physical Activity Skills Battery in an adolescent population. 相似文献
107.
We investigated influences of non‐alphanumeric rapid naming on decoding skill growth for regularly and irregularly spelled English words. In a longitudinal study, 52 at‐risk and 69 not‐at‐risk readers were tracked from Grade 1 to Grade 3. Non‐alphanumeric rapid naming ability measured in Grade 1 accounted for unique variance in irregular word decoding in early Grade 2 – strong rapid naming was associated with strong irregular word decoding. An interaction between reading risk status and Grade 1 rapid naming indicated that the influence of Grade 1 rapid naming ability on growth in irregular word decoding was different for at‐risk than not‐at‐risk readers. Non‐alphanumeric rapid naming can have predictive validity as a marker for identifying specific difficulties in learning to read irregular words in at‐risk readers. Results indicate that rapid naming plays a general role in irregular word reading and a specific role in at‐risk readers' growth in irregular word decoding. 相似文献
108.
Elizabeth A. Suter Leslie A. Baxter Leah M. Seurer Lindsey J. Thomas 《Communication monographs》2014,81(1):59-78
Framed by relational dialectics theory, discursive constructions of the meaning of “family” were examined in 100 online foster adoption narratives. Parental narratives manifested struggles between biogenetic and discursive constructions of “family,” identified here as the discourse of biological normativity (DBN) and discourse of constitutive kinning (DCK). The DBN reinscribes the dominant cultural and foster care system preference for biogenetically connected families. The DCK resists the DBN, maintaining that enacted behaviors and shared affections, rather than shared genetics, constitute legitimate families. Contrapuntal analysis revealed a high degree of polemic interplay; both discourses competed to be centered rather than marginalized through the discursive practices of negating, countering, and entertaining. Implications for theorizing definitions of family and studying families in context are discussed 相似文献
109.
Mengyu Gao Bailey Speck Brendan Ostlund Dylan Neff Nila Shakiba Robert D. Vlisides-Henry Parisa R. Kaliush Nicolette C. Molina Leah Thomas K. Lee Raby Sheila E. Crowell Elisabeth Conradt 《Child development》2022,93(4):1090-1105
This study tested whether newborn attention and arousal provide a foundation for the dynamics of respiratory sinus arrhythmia (RSA) in mother–infant dyads. Participants were 106 mothers (Mage = 29.54) and their 7-month-old infants (55 males and 58 White and non-Hispanic). Newborn attention and arousal were measured shortly after birth using the NICU Network Neurobehavioral Scale. Higher newborn arousal predicted a slower return of infant RSA to baseline. Additionally, greater newborn attention predicted mothers’ slower return to baseline RSA following the still-face paradigm, and this effect only held for mothers whose infants had lower newborn arousal. These findings suggest that newborn neurobehavior, measured within days of birth, may contribute to later mother–infant physiological processes while recovering from stress. 相似文献
110.