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Ripple AS 《Medical reference services quarterly》2006,25(2):97-107
Google is the search engine of choice for most Internet users. For a variety of reasons, librarians and other expert searchers do not always use Google to its full potential, even though it provides capabilities not possible in traditional bibliographic databases and other search engines. Applying expert searching principles and practices, such as the use of advanced search operators, information retrieval strategies, and search hedges to Google will allow health sciences librarians to find quality information on the Internet more efficiently and effectively. 相似文献
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Patrick T. Davies Jesse L. Coe Rochelle F. Hentges Melissa L. Sturge-Apple Michael T. Ripple 《Child development》2020,91(2):508-526
This study examined temperament dimensions of emotion as precursors of children's social information processing (SIP) of stressful peer events. Two hundred and forty-three preschool children (M = 4.60 years) and their primary caregivers participated in two measurement occasions spaced 2 years apart. Observations of temperamental anger, fearful distress, positive affect, and effortful control were assessed in multiple laboratory tasks across two visits at Wave 1. SIP assessments from vignettes of peer challenges were repeated across two waves and included: eye tracking measures of attention to peer emotion displays, hostile attribution bias, hostile solutions, and subjective distress. Findings from structural equation models with inclusion of autoregressive controls indicated that effortful control, fear, and anger predicted subsequent changes in specific SIP dimensions. 相似文献
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The purpose of this study was to explore the relationship between divergent thinking abilities, self‐esteem, and personal characteristics of older adults. A total of 39 subjects ranging in age from 61 to 84 years responded to a personal data inventory, a self‐esteem measure, and a taped auditory free‐response exercise in divergent thinking. Scores were obtained for fluency, flexibility, and originality of thought and for self‐esteem. Level of education was the best predictor of divergent thinking abilities. Self‐esteem and age were significantly correlated with fluency and flexibility but not with originality. Level of education accounted for the greatest proportion of variance in divergent thinking scores. In the multiple regressions neither self‐esteem nor age accounted for a significant proportion of the variance in fluency, flexibility, or originality. Self‐reports of subjects supported positiveness in self‐perceptions. Results are discussed in terms of the age‐decrement model of cognitive abilities and positiveness of educational intervention efforts. 相似文献
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Shedid SM Saada HN Eltahawy NA Hammad AS 《Indian journal of clinical biochemistry : IJCB》2018,33(3):314-321
Radiation induced brain damage is associated with impairment of mitochondrial functions, variations in the level of neurotransmitters, and oxidative stress. Mitochondrial function is closely linked to the level of neurotransmitters since the precursors are supplied by the Kreb’s cycle intermediates. The objective of this study was to evaluate the influence of pantothenic acid, an essential component in the synthesis of Coenzyme A (CoA), on the activity of the Krebs cycle enzymes, isocitrate dehydrogenase (IDH), α-ketoglutarate dehydrogenase (α-KGDH), and succinate dehydrogenase (SDH); the level of aspartic, glutamic and GABA; the activity of transaminases, and oxidative stress, in the cerebrum of γ-irradiated rats. Pantothenic acid (26 mg/Kg) was orally administered to the rats, 2 h after irradiation and during the following 5 days. Animals were sacrificed the 7th day post-irradiation. The exposure of male albino rats to γ-rays (5 Gy) has triggered oxidative stress notified by a significant elevation in the level of malondialdehyde (MDA), an end product of lipid peroxidation, associated to a significant decrease in the content of phospholipids, and the antioxidant compound glutathione (GSH). The activity of IDH, α-KGDH, and SDH, has significantly decreased, while the level of aspartic, glutamic and GABA has significantly increased. In parallel to these changes, the activity of alanine and aspartate transaminase has significantly increased, compared to their values in the control rats. Pantothenic acid treatment, has significantly attenuated oxidative stress; enhanced the activity of IDH, α-KGDH, and SDH; minimized the increase in the level of amino acids and the activity of transaminases, compared to their values in the cerebrum of irradiated rats. In conclusion, pantothenic acid could improve the level of neurotransmitters amino acids, which depends on the enzymatic activities of Krebs cycle and linked to oxidative stress. 相似文献
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Richard E. Ripple 《Contemporary educational psychology》1977,2(3):219-231
Communication, education, and creativity are conceptually related through a general systems approach. Each phenomenon is viewed as a transactional process. Implications are drawn for facilitating the development of more creative student behaviors in the education system. 相似文献
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