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981.
This article analyzes President Barack Obama’s remarks following the acquittal of George Zimmerman on the charge of murdering Trayvon Martin. Speaking directly to, for, or about African Americans would lead some to accuse him of speaking primarily as a black man, while ignoring the idea of race would lead some to accuse him of failing to acknowledge its omnipresence in American life. To manage these constraints, the president employed what we have termed a doubled persona; that is, he enacted two different speaking personae and envisioned a distinct audience persona for each speaking persona: He spoke both as a black president and as a president who is black. 相似文献
982.
This paper discusses the development and use of an audiographics program, Electronic Classroom®, at all levels of Australian education and analyses the manner in which the rapid improvements in computing performance have allowed the technology to meet the needs of users from new areas of the curriculum; illustrates the usage of the product in a variety of educational settings by pointing to a number of case studies; discusses the educational strategies used by teachers in their use of audiographics and makes conclusions on the role of audiographics in education. 相似文献
983.
Timothy C. Bates Anne Castles Michelle Luciano Margaret J. Wright Max Coltheart Nicholas G. Martin 《Reading and writing》2007,20(1-2):147-171
We develop and test a dual-route model of genetic effects on reading aloud and spelling, based on irregular and non-word reading
and spelling performance assessed in 1382 monozygotic and dizygotic twins. As in earlier research, most of the variance in
reading was due to genetic effects. However, there were three more specific conclusions: the first was that most of the genetic
effect is common to both regular and irregular reading. In addition to this common variance evidence was found for distinct
genes influencing the acquisition of a lexicon of stored words, and additional genetic effects influencing the acquisition
of grapheme–phoneme correspondence rules. The third conclusion, from a combined model of reading and spelling, is that reading
and spelling have a common genetic basis. Models that did not distinguish lexical and non-lexical performance fit significantly
worse than dual route genetic models. An implication of the research is that models of reading, whether connectionist or dual-route,
must allow for the genetic independence of neurological processes underlying the decoding of non-words and irregular words. 相似文献
984.
Propper C Moore GA Mills-Koonce WR Halpern CT Hill-Soderlund AL Calkins SD Carbone MA Cox M 《Child development》2008,79(5):1377-1394
This study investigated dopamine receptor genes (DRD2 and DRD4) and maternal sensitivity as predictors of infant respiratory sinus arrhythmia (RSA) and RSA reactivity, purported indices of vagal tone and vagal regulation, in a challenge task at 3, 6, and 12 months in 173 infant-mother dyads. Hierarchical linear modeling (HLM) revealed that at 3 and 6 months, RSA withdrawal in response to maternal separation was greater (suggesting expected physiological regulation) in infants without the DRD2 risk allele than those with the risk allele. At 12 months, infants with the risk allele who were also exposed to maternal sensitivity showed levels of RSA withdrawal comparable to infants who were not at genetic risk. Findings demonstrate the importance of developmental analysis of gene-environment interaction. 相似文献
985.
Bruno Giordani Michael J. Boivin Bikayi Opel Diawaku “Noah” Dia Nseyila Roger E. Lauer 《International Journal of Disability, Development & Education》1996,43(1):5-24
There is a continuing need for formalised assessment procedures that can be adapted for group comparisons across diverse cultures to facilitate school and occupational placement, as well as to evaluate the effectiveness of nutritional, education, and medical intervention programs. This study used a direct translation of the Kaufman Assessment Battery for Children (K‐ABC) to evaluate 130 Zairian primary school children. The distinction between Sequential Processing and Simultaneous Processing abilities on the K‐ABC was generally found to be valid in this sample. The K‐ABC also discriminated effectively among grade levels, differences in health and family environment indicators, and tribal membership. Reasonable test‐retest correlations for the K‐ABC global scales were also found with a subsample of the children. The Zairian children's K‐ABC scores, particularly for the Simultaneous subtests, were markedly lower than the American normative sample. Education and experiential factors inherent in the sub‐Sahara environment may put these children at a significant cultural disadvantage in terms of the skills required for successful completion of K‐ABC items. 相似文献
986.
987.
Kent Gustafson Roger Wagner Michael D. Corry Barbara Seels Rita Richey John Rousell Williams Gibbs Danial J. Robertson Kay Bland David Little Danilo M. Baylen Abdulrahim M. Saad Patricia Burke Hyunjoo Kim Linda Gilbert Hoffman Debra J. Dirksen Negishi Jason Ravistz Vicki Napper Danilo Baylen 《TechTrends》1996,41(3):2-3
988.
Feldman et al. criticize the MacArthur Communicative Development Inventories (CDIs) as having too much variability, too little stability, and insufficient ability to predict early language delay. We present data showing that these characteristics of the CDI are authentic reflections of individual differences in early language development rather than measurement deficiencies. We also respond to their critical assertions concerning sociodemographic influences on the CDI scores. 相似文献
989.
Two experiments investigating odor production and utilization in rats under the effects of Thorazine and Elavil injections, respectively, are reported. In Experiment 1, significantly slower speeds shown by the Thorazine-injected subjects indicated that this drug depressed performance. It is felt that depressed performance allowed these subjects to attend and respond to odor cues earlier in Phase 1 than did saline-injected control animals. Reversing the injection conditions (Phase 2) failed to disrupt already-established patterning. During the first phase of Experiment 2, Elavil-injected subjects failed to establish patterned responding, whereas such responding was readily established by saline-injected subjects. Reversing the injection conditions (Phase 2) resulted in the rapid development of double-alternation patterning by the subjects that were shifted from Elavil to saline and in the maintenance of such responding by the animals shifted from saline to Elavil. 相似文献
990.