Prenatal Maternal Stress,Child Cortical Thickness,and Adolescent Depressive Symptoms     

Elysia Poggi Davis  Benjamin L. Hankin  Laura M. Glynn  Kevin Head  Dae Jin Kim  Curt A. Sandman 《Child development》2020,91(2):e432-e450

Prenatal maternal stress predicts subsequent elevations in youth depressive symptoms, but the neural processes associated with these links are unclear. This study evaluated whether prenatal maternal stress is associated with child brain development, and adolescent depressive symptoms using a prospective design with 74 mother child pairs (40 boys). Maternal stress was assessed during pregnancy, child cortical thickness at age 7, and depressive symptoms at age 12. Prenatal maternal stress was associated with less cortical thickness primarily in frontal and temporal regions and with elevated depressive symptoms; child cortical thickness additionally correlated with adolescent depressive symptoms. The observed associations are consistent with the possibility that cortical thickness in superior frontal regions links associations between prenatal maternal stress and adolescent depressive symptoms.  相似文献   

A Meta-Analysis of Single-Case Research on Mathematics Word Problem-Solving Interventions for English Learners with Learning Disabilities and Mathematics Difficulties     

Qingli Lei  Rose A. Mason  Yan Ping Xin  John L. Davis  Marie David  Catharine Lory 《Learning disabilities research & practice》2020,35(4):201-217

This single-case meta-analysis is the first to provide a quantitative synthesis of the published literature on mathematics word problem-solving intervention studies for English learners with learning disabilities and mathematics difficulties. A total of ten single-subject studies were included for analysis. The current study investigated the magnitude of the effect of mathematics interventions targeting the improvement of students’ mathematics word problem-solving performance, and analyzed variables that moderated this effect. Results indicate a moderate overall effect size of 0.81 (95% CI [0.71, 0.90]) on word problem-solving performance for English learners with learning disabilities and mathematics difficulties. Moderator variables such as the implementer of the interventions, instructional focus, and word problem-solving content significantly moderated the mathematics intervention effects.  相似文献   

The effects of mid-flight whole-body and trunk rotation on landing mechanics: implications for anterior cruciate ligament injuries     

Meghan L. Critchley  Daniel J. Davis  Michaela M. Keener  Jacob S. Layer  Margaret A. Wilson  Qin Zhu 《Sports biomechanics / International Society of Biomechanics in Sports》2020,19(4):421-437

ABSTRACT

The purpose was to quantify the effects of mid-flight whole-body and trunk rotation on knee mechanics in a double-leg landing. Eighteen male and 20 female participants completed a jump-landing-jump task in five conditions: no rotation, testing leg ipsilateral or contralateral (WBRC) to the whole-body rotation direction, and testing leg ipsilateral (TRI) or contralateral to the trunk rotation direction. The WBRC and TRI conditions demonstrated decreased knee flexion and increased knee abduction angles at initial contact (2.6 > Cohen’s dz > 0.3) and increased peak vertical ground reaction forces and knee adduction moments during the 100 ms after landing (1.7 > Cohen’s dz > 0.3). The TRI condition also showed the greatest knee internal rotation angles at initial contact and peak knee abduction and internal rotation angles and peak knee extension moments during the 100 ms after landing (2.0 > Cohen’s dz > 0.5). Whole-body rotation increased contralateral knee loading because of its primary role in decelerating medial-lateral velocities. Trunk rotation resulted in the greatest knee loading for the ipsilateral knee due to weight shifting and mechanical coupling between the trunk and lower extremities. These findings may help understand altered trunk motion in anterior cruciate ligament injuries.  相似文献   

Rediscovering the political dimension of the personal life story: results from an intergenerational narrative learning project with older adults in South Westphalia     

Joachim Broecher  Joyce H. Davis  Janet F. Painter 《International Journal of Lifelong Education》2017,36(4):471-485

Using qualitative interviews, focus groups, storytelling and collective journaling, the life experiences of people in a local village community, in South Westphalia, Germany, born between 1930 and 1945, were analysed collaboratively. The research intention was to give the younger generations in that region access to these experiences and insights, within the context of democratic learning and civic education. The focus of this narrative learning project was on the politically relevant issues and themes they contained, above all: the significance of free information and thought, a free cultural life, access to education for all children and youth, a self-determined life for women and girls, as well as cohesion and self-help structures in the social community. Many tales were shared from the Third Reich, making references to Wilhelmine Germany and the Republic of Weimar, including how these times had been narrated to them through their forebearers and families’ archives.  相似文献   

The effect on student achievement of increasing kinetic structure of teachers' lectures     

William G. Lamb  Patricia Davis  Robert Leflore  Cicero Hall  J. Griffin  Rudolph Holmes 《科学教学研究杂志》1979,16(3):223-227

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Comparing deaf and hearing college students' mental arithmetic calculations under two interference conditions     

Davis SM  Kelly RR 《American annals of the deaf》2003,148(3):213-221

Deaf and hearing college students' mean reaction times (RTs) were compared on a mental calculation task in which they had to verify the accuracy of solutions to addition and multiplication problems. The deaf students were divided into higher and lower readers. Higher deaf readers and hearing students had similar RTs and accuracy on addition problems; their RTs were greater in the voicing interference mode than in the manual tapping interference mode. The lower deaf readers showed no RT differences between the two interference modes and had consistently lower RT performance and score accuracy across the verification tasks. On the verification task for multiplication problems, all participants showed a greater RT effect for manual tapping. The lower deaf readers were significantly less accurate on multiplication problems.  相似文献   

College Student Wellness: A Comparison Between Traditional‐ and Nontraditional‐Age Students     

David A. Hermon  Greta A. Davis 《Journal of College Counseling》2004,7(1):32-39

This study examined differences in wellness reported by traditional‐ and nontraditional‐age students as measured by the Wellness Evaluation of Lifestyle (J. E. Myers, T. J. Sweeney, & J. M. Witmer, 1998). Differences were found between the 2 age groups on 4 self‐regulation dimensions: realistic beliefs, sense of control, exercise, and self‐care. Implications for counseling practice and suggestions for future research are discussed.  相似文献   

The University Presidency: Do Evaluations Make a Difference?     

William E. Davis  Douglas R. Davis 《Journal of Personnel Evaluation in Education》1999,13(2):119-140

High turnover and short tenures are the norm for state university presidents in the last part of the twentieth century. Depending on the type of institution, the average state university president stays in office about four years, some three years shorter than the national average of seven years for all higher education institutions. The article discusses this trend and relates length of tenure to the formal and informal evaluations of presidents. Beginning with a presentation of presidential tenure (time in office) data and a discussion of the benefits of longer terms, the article continues with a dialogue on the role of the president in state institutions of higher education. It is argued that the position of president necessitates constituent leadership with presidents often expected to please all constituencies. Included in this discussion are the nature, role, and effectiveness of evaluations of university presidents. The authors conclude that evaluations of presidents make little difference in decisions to retain or remove presidents. Even a good or great evaluation does not offset the impact of the unforseen event or changes in political leadership within a state or on a board. The authors agree that annual reviews or reports are valuable in improving a presidents performance and leadership. Evaluations make a difference when they are supervised by individuals with direct knowledge of the job, are fair in terms of expectations from often divergent constituent groups, and focus on maximizing the ability of the president to improve the institution.  相似文献   

Structuring Occasions     

Jo Towers  Brent Davis 《Educational Studies in Mathematics》2002,49(3):313-340

Within the mathematics education literature, the term constructivism has been subject to a diversity of interpretations, many of which are trivializations of original theoretical work. We suggest that trivialized versions of constructivism continue to be promulgated due, in large part,to misunderstandings of some of the vocabulary adopted by its advocates. This situation has been the source of considerable frustration in our ongoing efforts to communicate the insights and implications of radical and social constructivist theories to preservice and practicing teachers. We discuss some of the specifics of these frustrations along with strategies intended to flag and circumvent them in our work with teachers. The writing is structured around a set of recursively elaborated interpretations of a classroom episode. Developed around varied understandings of the terms structure and construct, these interpretations are intended to show how we have worked with teachers to foster a deep appreciation of how learning might be reframed as dependent on, rather than determined by, teaching.This revised version was published online in September 2005 with corrections to the Cover Date.  相似文献   

Using conjoint analysis to examine bias in referral to a behavior intervention program     

Amity Noltemeyer  Claire Kunesh  Erin Harper  Darrel R. Davis 《Psychology in the schools》2021,58(1):89-106

Research in the United States suggests that teachers view Black students' misbehavior as more likely to reoccur, but such research has not disentangled the effect of race from related factors. We used conjoint analysis to experimentally test the effect of multiple student characteristics on the chances of being referred for a behavior intervention program. Although preservice teacher participants were not more likely to refer Black students, they were more likely to refer students who had lower grades, lived in poverty, lived with a single mother, and had been retained. We interpret these results and highlight directions for future research and practice.  相似文献