The preparation of pure alloys     

Ernst Julius Berg 《Journal of The Franklin Institute》1924,198(6):794

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Heaviside's operators in engineering and physics     

Ernst Julius Berg 《Journal of The Franklin Institute》1924,198(5):647-702

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Girls’ bodily activities in physical education How current fitness and sport discourses influence girls’ identity construction     

Kristin Walseth  Iselin Aartun  Gunn Engelsrud 《Sport, Education and Society》2017,22(4):442-459

Girls’ identity constructions are influenced by the dominant sport, health and beauty discourses in their society. Recent research indicates that sport and health discourses embedded in physical education (PE) compete for influence. Some of these studies have illustrated how these discourses inform girls’ social construction of body ideals and femininities, as well as their choices among physical activities. Our purpose in posing the question, ‘How are girls’ identity construction in PE influenced by current fitness and sport discourses?’ is to explore their identity construction and how they negotiate within the PE discourse as embodied subjects, as well as how they use their body as an object of display. This study is based on fieldwork among 10th grade students (15-year-olds) in a school in Oslo, Norway. The methods used include participant observation, informal conversations with the students and two group interviews. We hope that our findings concerning how sport and fitness discourses influence the students’ concepts of both the ideal body and their choices among bodily activities in PE will contribute to the debate on the future of PE. In particular, the girls’ embrace of the fitness discourse in PE is relevant to a question of great current concern: How should schools and PE teachers meet and relate to the fitness discourse in contemporary society? We believe that if left unchallenged and permitted to deepen its influence on PE, this discourse may well ensure that body modification becomes the primary purpose of PE.  相似文献   

Propulsion of ships     

Eskil Berg 《Journal of The Franklin Institute》1918,185(3):317-332

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Wear and Tear of World Heritage: Preventive Conservation and Tourism in Norway’s Stave Churches     

Fredrik Berg 《文物保护研究》2018,63(5):320-322

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Sustainable Museum Storage Buildings for Long-term Preservation     

Kristina Holl  Ralf Kilian  Lars Klemm  Kristin Lengsfeld  Stefan Bichlmair  Martin Krus 《文物保护研究》2018,63(5):366-368

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The Relationship Between Social Support and Type 2 Diabetes Risk     

Kristin G. Maki 《Communication Research Reports》2018,35(1):12-21

Prior research links social support with several positive health outcomes. However, less is known about the association between social support and Type 2 diabetes risk factors, such as glycemic control. This study uses a nationally representative sample from the National Longitudinal Study of Adolescent to Adult Health (Add Health) to examine the relationship between social support and glycated hemoglobin A1c (HbA1c) levels. The data were analyzed through hierarchical logistic regression. Results indicate an inverse relationship between elevated HbA1c levels and individuals’ satisfaction with their partners’ daily interactions. Implications include the possibility of reducing Type 2 diabetes risk through communication interventions highlighting the importance of maintaining positive daily interactions.  相似文献   

Philosophy and Sport     

Adam Berg 《体育哲学杂志》2016,43(2):329-333

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Exploratory insights from the right-sided electrocardiogram following prolonged endurance exercise     

Rachel Lord  Keith George  John Somauroo  Nikhil Jain  Kristin Reese  Martin D. Hoffman 《European Journal of Sport Science》2016,16(8):1014-1022

Background: Prolonged strenuous exercise has a profound effect on cardiac function. The right heart may be more susceptible to this imposition; yet, right-sided chest leads have not been utilised in this setting. Methods: Thirty highly trained athletes at the 2014 Western States 100-mile Endurance Run from Squaw Valley to Auburn, California (body mass 68?±?12?kg, age 45?±?10?years, 57?±?15?miles per week) were recruited for the study. Pre- and post-race, a right-sided 12-lead ECG was obtained and data were extracted for P, R and S waves, J point, ST segment and T wave amplitude. Data were compared using Students T-test and statistical significance set as P?Results: There was a significant increase in P wave amplitude (29%) and QTc interval (4%) pre- to post-race from standard 12-lead ECG. From the right-sided12-lead ECG, a 23% (P?=?.01) and 38% (P?=?.03) increase in J point amplitude in V1R and V2R and a 22% (P?=?.05) increase in ST segment integral in V2R and V3R were evident. T wave inversion was evident in leads V2R–V6R in 50–90% of athletes, respectively. Close examination revealed marked heterogeneity in individual ECGs. Conclusions: Completion of a 100-mile ultra-marathon resulted in significant changes in the right-sided ECG alongside more marked responses in specific individuals. P wave, ST segment and T wave changes post-race are indicative of acute exercise-induced right heart electrical adaptation.  相似文献   

JAEE editorial committee member’s choice for the best articles 2018     

Dr. Kristin Davis 《The Journal of Agricultural Education and Extension》2019,25(1)

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