Live Instruction for Distance Students: Development of Synchronous Online Workshops     

Fotini Kontos  Harold Henkel 《Public Services Quarterly》2013,9(1):1-14

ABSTRACT

This paper examines the Regent University Library's effort to reach online students by incorporating online library workshops using the Live Classroom software from Horizon Wimba. The paper explains the need for synchronous online library instruction which arose from the university's changing clientele and curriculum. It also analyzes participant feedback regarding strengths and weaknesses of the online workshops. The paper concludes by considering the future for this type of instruction in light of Regent University's increasing emphasis on online education.  相似文献   

Effects of load on ground reaction force and lower limb kinematics during concentric squats     

Kellis E  Arambatzi F  Papadopoulos C 《Journal of sports sciences》2005,23(10):1045-1055

The purpose of this study was to examine the effects of external load on vertical ground reaction force, and linear and angular kinematics, during squats. Eight males aged 22.1 +/- 0.8 years performed maximal concentric squats using loads ranging from 7 to 70% of one-repetition maximum on a force plate while linear barbell velocity and the angular kinematics of the hip, knee and ankle were recorded. Maximum, average and angle-specific values were recorded. The ground reaction force ranged from 1.67 +/- 0.20 to 3.21 +/- 0.29 times body weight and increased significantly as external load increased (P < 0.05). Bar linear velocity ranged from 0.54 +/- 0.11 to 2.50 +/- 0.50 m x s(-1) and decreased significantly with increasing external load (P < 0.05). Hip, knee and ankle angles at maximum ground reaction force were affected by external load (P < 0.05). The force-barbell velocity curves were fitted using linear models with coefficients (r2) ranging from 0.59 to 0.96. The results suggest that maximal force exertion during squat exercises is not achieved at the same position of the lower body as external load is increased. In contrast, joint velocity coordination does not change as load is increased. The force-velocity relationship was linear and independent from the set of data used for its determination.  相似文献   

Leveraging the 1:1 iPad approach for enhanced learning in the classroom     

Symeon Retalis  Fotini Paraskeva  Aikaterini Alexiou  Zoi Litou  Theofili Sbrini  Youla Limperaki 《Educational Media International》2018,55(3):213-230

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Attachment insecurity mediates the relationship between childhood trauma and eating disorder psychopathology in a clinical sample: A structural equation model     

Giorgio A. Tasca  Kerri Ritchie  Fotini Zachariades  Genevieve Proulx  Anne Trinneer  Louise Balfour  Natasha Demidenko  Genevieve Hayden  Alison Wong  Hany Bissada 《Child abuse & neglect》2013

Objectives

Childhood maltreatment occurs often among those with an eating disorder and is considered a nonspecific risk factor. However, the mechanisms by which childhood maltreatment may lead to an eating disorder are not well understood. The current study tests a model in which attachment insecurity is hypothesized to mediate the relationship between childhood maltreatment and eating disorder psychopathology.

Method

Treatment seeking adults with eating disorders (N = 308) completed questionnaires about childhood maltreatment, eating disorder psychopathology, and adult attachment.

Results

Structural equation models indicated that childhood trauma had a direct effect on eating disorder symptoms. Also, attachment anxiety and avoidance each equally mediated the childhood maltreatment to eating disorder psychopathology relationship.

Conclusions

Attachment insecurity, characterized by affect dysregulation and interpersonal sensitivities may help to explain why eating disorder symptoms may be one consequence of childhood maltreatment in a clinical sample. Clinicians treating primarily those with trauma might assess for disordered eating as a potential manifestation of the sequelae of trauma and attachment insecurity.  相似文献