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251.
252.
The association between cortisol and behavioral reactivity to a medical heel stick and a neurobehavioral exam was examined in 100 healthy African American neonates, who have been underrepresented in this area of research. Using continuous measures, behavioral distress was associated with cortisol reactivity to both stressors. High levels of behavioral distress, however, were associated with cortisol reactivity only in response to the neurobehavioral exam. In contrast, low levels of behavioral distress were associated with cortisol reactivity only in response to the heel stick. The results highlight potentially important parameters for exploring the relation between biological and behavioral reactivity to stress such as the operationalization of behavioral distress and the context in which a stress response is elicited. 相似文献
253.
Pigeons responded in a two-component peak procedure in which the components differed in terms of reinforcement magnitude (Experiment 1), immediacy (Experiment 2), or probability (Experiment 3). The prediction of behavioral momentum theory that responding in the relatively richer component should be more resistant to change was tested by (1) presenting response-independent food in the intervals between components according to a variable-time (VT) schedule, (2) prefeeding, and (3) extinction. In all the experiments, peak location in baseline occurred earlier, relative to the schedule value in the richer component. Peak response rate was more resistant to change in the richer component during the VT and prefeeding tests, and change in peak rate was more sensitive to differential reinforcement than change in overall response rate. Changes in measures of performance on peak trials during the disruptor tests were partially consistent with predictions of the behavioral theory of timing. The results suggest that peak response rate provides a more sensitive index of resistance to change for fixed-interval schedules than does overall response rate and that reinforcement strengthens both peak responding and temporal control. 相似文献
254.
Elina Birmingham Tamara Meixner Grace Iarocci Christopher Kanan Daniel Smilek James W. Tanaka 《Child development》2013,84(4):1407-1424
The strategies children employ to selectively attend to different parts of the face may reflect important developmental changes in facial emotion recognition. Using the Moving Window Technique (MWT), children aged 5–12 years and adults (N = 129) explored faces with a mouse‐controlled window in an emotion recognition task. An age‐related increase in attention to the left eye emerged at age 11–12 years and reached significance in adulthood. This left‐eye bias is consistent with previous eye tracking research and findings of a perceptual bias for the left side of faces. These results suggest that a strategic attentional bias to the left eye begins to emerge at age 11–12 years and is likely established sometime in adolescence. 相似文献
255.
温布顿是所有网球迷心中的圣殿,自从2002年开始看网球以来,那片绿草就承载着我对网球的所有梦想。在网球界,似乎只有温布顿才配的上“经典”这一修饰语。又因为我最喜爱的球员费德勒一直将温布顿视作他自己的后花园,我对这片场地的情感更加深沉。我一直梦想着可以亲临温布顿见证费天王捧起金杯,这个梦想支撑着我对网球的所有热情。 相似文献
256.
Kanyengo CW Ajuwon GA Kamau N Horta C Anne A 《Medical reference services quarterly》2011,30(3):257-268
The United States National Library of Medicine (NLM) has the largest collection of biomedical information products and services in the world. Little is known of the extent to which librarians in sub-Saharan Africa are aware of and use these resources. The study's aim was to assess knowledge and frequency of use of NLM's biomedical information products and services among African librarians. Forty-three of the 50 delegates at the 11th biannual Congress of the Association of Health Information and Libraries in Africa (AHILA) participated in the study. The findings showed that participants' knowledge of NLM information products and services was low and that there is a need for increased awareness and training in the use of NLM's information products and services in order for users on the African continent to effectively benefit from them. 相似文献
257.
Using a daily diary method, this study assessed daily episodes of family and peer conflict among 578 adolescents in the 9th grade to examine potential bidirectional associations between the family and peer domains. Adolescents completed a daily diary checklist at the end of each day over a 14-day period to report events of conflict and their emotional states for a given day. Overall, the within-person models provided evidence for the bidirectional nature of family peer linkages across gender and ethnicity. Adolescents experienced more peer conflict on days in which they argued with parents or other family members, and vice versa. Effect of family conflict further spilled over into peer relationships the next day and 2 days later, whereas peer conflict predicted only the following day family conflict. Adolescents' emotional distress partially explained these short-term spillovers between family and peer conflict. 相似文献
258.
Sharon A. Sass Ginger L. Pedersen Grace H. Truman 《Community College Journal of Research & Practice》2013,37(6):453-461
Palm Beach Community College realigned its curriculum to allow student to seamlessly process through career pathways. Students can start in clock-hour-based instruction and transfer that learning into credit-based associate in science degrees. Along this pathway, students can use exit points to employment with recognized certificates. 相似文献
259.
Carol Ward Benjamin G. Gibbs Rilee Buttars Patricia Grace Gaither Bert Burraston 《Journal of Education for Students Placed at Risk》2013,18(4):312-335
This study examines math and English standardized test score progress of students who participated in the 21st century program across 2 years of involvement with a focus on the learning trajectories of limited English proficiency (LEP) students. We find that math and English scores are highly associated with the school and program type—even within a single school district. LEP participants are the furthest behind but have the highest gains compared to other participants. Results vary based on the type of outcome (math or reading), the type of activity (academic or enrichment), and the grade level (elementary or middle school). 相似文献
260.
Grace Sarra 《International Journal of Inclusive Education》2013,17(6):611-625
Cherbourg State School is approximately 300 km northwest of Brisbane. It is situated in an Aboriginal community at Cherbourg with approximately 250 students. At the Cherbourg State School, the aim was to generate good academic outcomes for all students from kindergarten to Year 7 and to nurture a strong and positive sense of what it means to be Aboriginal in today’s society. In this paper, I will discuss modernism and postmodernism in indigenous studies and how this has impacted on the design and development of the Indigenous Studies Programme at the Cherbourg State School. The programme was designed to provide students with the opportunity to learn about the history of Indigenous people from Indigenous voices and provide an understanding of the impact of invasion and the consequences on the lives of Indigenous people, in the past and present. The stories from the elders and members of their own community provided knowledge that allowed students to challenge Aboriginal identity by taking on existing perceptions so that they could be better processed and understood. 相似文献