To lie or not to lie: to whom and under what circumstances     

Perkins SA  Turiel E 《Child development》2007,78(2):609-621

This research examined adolescents' judgments about lying to circumvent directives from parents or friends in the moral, personal, and prudential domains. One hundred and twenty-eight adolescents (12.1-17.3 years) were presented with situations in which an adolescent avoids a directive through deception. The majority of adolescents judged some acts as acceptable, including deception regarding parental directives to engage in moral violations and to restrict personal activities. Other acts of deception were judged as unacceptable, including deception of parents regarding prudential acts, as well as deception of friends in each domain. In addition, lying to conceal a misdeed was negatively evaluated. Most adolescents thought that directives from parents and friends to engage in moral violations or to restrict personal acts were not legitimate, whereas parental directives concerning prudential acts were seen as legitimate. Results indicate that adolescents value honesty, but sometimes subordinate it to moral and personal concerns in relationships of inequality.  相似文献   

Bowling ball dynamics revealed by miniature wireless MEMS inertial measurement unit   总被引：1，自引：1，他引：0  

Kevin King  N. C. Perkins  Hugh Churchill  Ryan McGinnis  Ryan Doss  Ron Hickland 《Sports Engineering》2011,13(2):95-104

This paper presents a novel sensor technology to deduce the dynamics of a bowling ball. The sensor, a miniature wireless inertial measurement unit (IMU), incorporates MEMS accelerometers and angular rate gyros, a microcontroller, a low power RF transceiver, and a rechargeable battery. When embedded in a bowling ball, the IMU transmits the acceleration and angular velocity data that define the dynamics of the ball starting with the bowler’s delivery and its motion in the lane. Example results from professional bowlers illustrate how this technology can be used to assess bowler skill and ball performance. For instance, the IMU accurately measures the spin dynamics of the ball which are crucial to develop the ball “hook.” An analysis of ball dynamics in the lane is distilled to a measurable “hook potential” metric for further assessing bowler skill. Finally, the sensor presented herein is believed to be the world’s smallest, wireless IMU. This highly miniaturized and wireless design will enable parallel training systems for many sports, including basketball, baseball, crew, cricket, golf, fly fishing, soccer, softball, tennis, rowing, among others.  相似文献   

Emergent Literacy: Children's Books from 0 to 3 Bettina Kümmerling‐Meibauer (Ed). (2011) Amsterdam: John Benjamins Publishing Company. ISBN: 978 90 272 1808 7 hb; 978 90 272 8323 8 eb, 275pp., £89.94     

Margaret Perkins 《Literacy》2014,48(3):166-167

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Museum computer network     

John Perkins 《Archives and Museum Informatics》1992,6(4):11-12

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Letter box     

Minor W. Perkins 《Early Childhood Education Journal》1977,5(1):4-4

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Yoga for seniors: understanding their beliefs and barriers to participation     

Rebekah Perkins  Katarina Friberg Felsted  Gail Towsley  Linda Edelman 《Educational gerontology》2020,46(7):382-392

ABSTRACT

Yoga has been found to provide numerous health benefits to older adults including preventing or slowing physical frailty and subsequent functional limitations. The purpose of this study was to examine pre-frail or frail older adults’ beliefs about yoga as well as to identify barriers to participation. We recruited 37 older adults from a Faint, Fall, and Frailty Clinic at a medical center and asked them to complete questionnaires regarding their physical health and beliefs about yoga using the Beliefs About Yoga Scale. Frailty and fall risk were obtained through electronic health records. Participants’ had mean age of 72.81 years. Participants were considered to be prefrail (66.7%) or frail (33.3%), and most (78.4%) had fallen at least once in the past year. Over 72% of participants engaged in light physical activity. The BAYS mean score was 59.17 (SD = 12.5; Range 11–77). Higher scores indicted more optimistic beliefs about yoga. Over 90% of participants had not practiced yoga, 97.1% had no intentions to practice, 61.8% did not know locations placed where yoga classes were offered, 82.4% were unsure about the costs associated with yoga, and only 56.3% reported having transportation. The three primary barriers to practicing yoga were perceived difficulty of yoga practice, lack of motivation, and fear of injury. Participants held positive beliefs about yoga, yet had limited experience and little intention to participate indicating a need to provide targeted educational interventions to this population of older adults.  相似文献   

Medical knowledge discovery systems: data abstraction and performance measurement     

Albert L?HarrisEmail author  Charlie C?Chen  William J?Perkins 《知识管理研究与实践》2004,2(2):95-102

Knowledge discovery systems can be traced back to their origin, artificial intelligence and expert systems, but use the modern technique of data mining for the knowledge discovery process. To that end, the technical community views data mining as one step in the knowledge discovery process, while the non-technical community seems to view it as encompassing all of the steps to knowledge discovery. In this exploratory study, we look at medical knowledge discovery systems (MKDSs) by first looking at three examples of expert systems to generate medical knowledge. We then expand on the use of data abstraction as a pre-processing step in the comprehensive task of medical knowledge discovery. Next, we look at how performance of a medical knowledge discovery system is measured. Finally, the conclusions point to a bright future for MKDSs, but an area that needs extensive development to reach its full potential.  相似文献   

Book reviews     

Michelle Patterson  Tessa Blackstone  James A. Perkins  H. D. Law  Gareth Williams  Peter R. Fallon  Peter Armitage 《Higher Education》1975,4(2):251-260

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Meaningful assessment activities     

Jeffrey I. Gelfer  Peggy G. Perkins 《Early Childhood Education Journal》1988,16(1):6-9

Planning and organizing the young child's curriculum and classroom environment is an essential component in the early childhood education program. Every fall in the USA millions of children begin and continue to participate in formal school settings. These children are all unique and differ in cognitive and social maturity.Jeffrey I. Gelfer is Program Manager of children's services of Easter Seal Society in Sarasota, Florida. Peggy G. Perkins is an Educational Consultant in Sarasota, Florida.  相似文献   

Factors influencing anaphoric processing in ESL reading comprehension     

Charles Parish  Kyle Perkins 《Journal of Research in Reading》1985,8(2):106-115

The purpose of this study was to investigate the effects of some factors that influence English as Second Language (ESL) readers’ ability to resolve anaphoric expressions. Fifty full-time ESL students randomly drawn from three different proficiency levels served as unpaid volunteers for the project. Data were elicited by means of multiple-choice and cloze tests. The experimental design contains one between-subjects factor (proficiency level) and three within-subjects factors, all orthogonally manipulated (number of antecedents, case of pronominal anaphor, and propositional distance from antecedent). A four-way mixed ANOVA for the multiple-choice tests indicated significant effects for proficiency level, case of anaphor, and the interaction of case and number of antecedents. A similar four-way ANOVA for the cloze tests indicated significant effects for proficiency level, number of antecedents, case of anaphor, distance from antecedent, and for the interactions of case and antecedents, antecedents and distance, and case and distance. Similarities in the findings from this study and other first and second language studies are noted. Latent trait measurement procedures were employed to produce a rank order of difficulty for the different item types examined in this study.  相似文献