A dimension-reduction solution of free-time differential games for spacecraft pursuit-evasion
Sign Up to like & getrecommendations! Published in 2019 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2019.01.011
Abstract: Abstract This paper presents a dimension-reduction method for solving the free-time pursuit-evasion game between two spacecraft near circular orbits. Theoretically, finding the saddle-point solution of the game results in solving a high-dimensional (twenty-four in our… read more here.
Keywords: dimension reduction; pursuit; pursuit evasion; solution ... See more keywords
A comparison of free time activity choices of third culture kids in Albania and children in the UK
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DOI: 10.1080/03004279.2016.1218523
Abstract: ABSTRACT This study aims to consider children’s perspectives about free time activity choices. Through the use of drawings, favourite free time activities of third culture kids in Albania are compared with those of children in… read more here.
Keywords: free time; activity choices; time activity; third culture ... See more keywords
A Timestamp-Free Time Synchronization Scheme Based on Reverse Asymmetric Framework for Practical Resource-Constrained Wireless Sensor Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3188830
Abstract: Energy-efficient time synchronizations for wireless sensor networks (WSNs) have been put under the spotlight for years. A promising technique among which is the timestamp-free approach where no timestamps are required to establish the synchronization, thereby… read more here.
Keywords: time; scheme; free time; time synchronization ... See more keywords
Proneness to Boredom and Risk Behaviors During Adolescents’ Free Time
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DOI: 10.1177/0033294117724447
Abstract: As a clinical condition, boredom is an emotional state, widespread among young people, characterized by unpleasant feelings, lack of motivation, and low physiological arousal in which the level of stimulation is perceived as unsatisfactorily low.… read more here.
Keywords: free time; proneness; adolescents free; risk ... See more keywords
No Time for a ‘Time Out’? Managing Time around (Non)Drinking
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DOI: 10.1177/00380385211008370
Abstract: Young people’s drinking represents a nexus between time, temporalities and social practices. While drinking and intoxication have previously been considered a way to achieve a youthful sense of ‘time out’, young people’s drinking is declining… read more here.
Keywords: free time; time time; time; drinking time ... See more keywords
Effects of apixaban compared with warfarin as gain in event-free time – a novel assessment of the results of the ARISTOTLE trial
Sign Up to like & getrecommendations! Published in 2019 at "European Journal of Preventive Cardiology"
DOI: 10.1177/2047487319886959
Abstract: Background A novel approach to determine the effect of a treatment is to calculate the delay of event, which estimates the gain of event-free time. The aim of this study was to estimate gains in… read more here.
Keywords: free time; trial; event free; event ... See more keywords
O TRABALHO E O USUFRUTO DO TEMPO LIVRE/LAZER PARA OS PROFESSORES EM SARANDI/PR: DA COMPENSAÇÃO À CONFORMAÇÃO
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DOI: 10.22456/1982-8918.107646
Abstract: This study examined determinations of teachers’ work at municipal schools in Sarandi, Parana, Brazil, focused on their free time/leisure practices. This type of work has become increasingly precarious and intense, resulting in needs both in… read more here.
Keywords: free time; time; tempo livre; usufruto tempo ... See more keywords
Main Cross-Cutting Training Contents of LEISURE and Free Time Schools: Acceptance of Groups Involved in the Leisure Time Instructor Courses
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DOI: 10.3390/su13168959
Abstract: Time atomisation trends, leisure economy, and social and technological changes are causing a reframe of the leisure and free-time industry. This study aims to analyse the assessment of nine cross-cutting contents by the main agents… read more here.
Keywords: free time; cross cutting; leisure free; time ... See more keywords
Free Time and Physical Activity Among Americans 15 Years or Older: Cross-Sectional Analysis of the American Time Use Survey
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DOI: 10.5888/pcd16.190017
Abstract: Introduction Many Americans fail to meet physical activity guidelines. We investigated whether this failure is due in part to a lack of free time. Methods We analyzed data from the American Time Use Survey, 2014… read more here.
Keywords: free time; time physical; time; physical activity ... See more keywords