The Real Architeuthis—Still Unseen,but One More Model     

Richard Ellis 《Curator: The Museum Journal》1997,40(3):176-177

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On-the-Job Training: Prescriptions and Practice     

George B. Semb  John A. Ellis  Marguerite A. Fitch  Steve Parchman  Cheryl Irick 《Performance Improvement Quarterly》1995,8(3):19-37

This article discusses the status of workplace training in the United States, describes a model of how to conduct effective on-the-job training, and presents the results of a questionnaire based on a model designed to assess on-the-job training practices aboard Navy ships. The model views the on-the-job trainer as a coach who guides the trainee through a task using three steps: 1) assessment, 2) training, and 3) evaluation. The questionnaire was sent to over 5,000 shipboard supervisors; 2,321 responded. Results indicate that nearly 50% of the Navy supervisors who responded are not as effective as they could be. The implications of these findings for the civilian workplace are discussed.  相似文献   

Improving energy expenditure estimates from wearable devices: A machine learning approach     

Ruairi O’Driscoll  Jake Turicchi  Mark Hopkins  Graham. W. Horgan  Graham Finlayson  James. R. Stubbs 《Journal of sports sciences》2020,38(13):1496-1505

ABSTRACT

A means of quantifying continuous, free-living energy expenditure (EE) would advance the study of bioenergetics. The aim of this study was to apply a non-linear, machine learning algorithm (random forest) to predict minute level EE for a range of activities using acceleration, physiological signals (e.g., heart rate, body temperature, galvanic skin response), and participant characteristics (e.g., sex, age, height, weight, body composition) collected from wearable devices (Fitbit charge 2, Polar H7, SenseWear Armband Mini and Actigraph GT3-x) as potential inputs. By utilising a leave-one-out cross-validation approach in 59 subjects, we investigated the predictive accuracy in sedentary, ambulatory, household, and cycling activities compared to indirect calorimetry (Vyntus CPX). Over all activities, correlations of at least r = 0.85 were achieved by the models. Root mean squared error ranged from 1 to 1.37 METs and all overall models were statistically equivalent to the criterion measure. Significantly lower error was observed for Actigraph and Sensewear models, when compared to the manufacturer provided estimates of the Sensewear Armband (p < 0.05). A high degree of accuracy in EE estimation was achieved by applying non-linear models to wearable devices which may offer a means to capture the energy cost of free-living activities.  相似文献   

The Best of Language Matters     

Susan Ellis 《Literacy》2005,39(1):54-55

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Computers as learning resources in the health sciences: impact and issues     

L B Ellis  G G Hannigan 《Bulletin of the Medical Library Association》1986,74(2):95-99

Starting with two computer terminals in 1972, the Health Sciences Learning Resources Center of the University of Minnesota Bio-Medical Library expanded its instructional facilities to ten terminals and thirty-five microcomputers by 1985. Computer use accounted for 28% of total center circulation. The impact of these resources on health sciences curricula is described and issues related to use, support, and planning are raised and discussed. Judged by their acceptance and educational value, computers are successful health sciences learning resources at the University of Minnesota.  相似文献   

Young adults’ contact experiences and attitudes toward aging: age salience and intergroup anxiety in South Korea*     

Yan Bing Zhang  Soojeong Paik  Chong Xing  Jake Harwood 《亚洲交流杂志》2018,28(5):468-489

From the theoretical perspectives of communication accommodation and intergroup contact, this study examined South Korean young adults’ (N?=?301) perceptions of their communication experiences with a frequently-contacted grandparent, as well as attitudes toward older adults and own aging. Findings from structural equation modeling indicated that the participants’ attitudes towards older adults were positively predicted by contact frequency with the grandparent and negatively predicted by perceptions of the grandparent’s non-accommodative communication. Analyses of indirect effects revealed that young adults’ intergroup anxiety explained these associations. Although the direct effects of contact frequency and the grandparent’s non-accommodation on attitudes toward own aging were nonsignificant, the indirect effects through intergroup anxiety were significant. Moderation analysis indicated that these direct and indirect associations between non-accommodation and aging attitudes were significant only when age salience was low – a finding contrary to existing theory and research. Results are discussed in terms of intergenerational communication and culture, and theories of intergroup contact.  相似文献   

Physical education for deaf students     

Stewart DA  Ellis MK 《American annals of the deaf》1999,144(4):315-319

An ideal physical education program would be one that focuses on aspects leading to lifelong participation in and enjoyment of physical activity accompanied by appropriate fitness levels. Often, physical education classes are the only physical activity that many children receive throughout the day, and without them, an even greater number of children, including those who are deaf, would be prone to aspects associated with sedentary lifestyles. Schools need to involve their students in daily physical education classes. The emphasis of such a program should be placed on promoting physical fitness and developing skills that lead to a lifelong enjoyment of physical activity and healthy lifestyles. This paper reviews the literature on the state of physical fitness among deaf students and describes an exemplary physical education program that was implemented at a school for deaf children.  相似文献   

University film societies and series     

Jack C. Ellis 《Educational technology research and development : ETR & D》1956,4(1):47-56

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Mosha: the role of contemporary replicas in the conservation and preservation of Japanese paintings     

Justine Ellis  Yasuhiro Oka  Shiho Hashimoto 《文物保护研究》2016,61(3):286-288

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Disasters on the West Coast: Personal Observations     

Michael J. Ellis 《Quest (Human Kinetics)》2013,65(2):121-125

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