Enhancing tolerance to unexpected jumps in GR(1) games

When used as part of a hybrid controller, finite-memory strategies synthesized from linear-time temporal logic (LTL) specifications rely on an accurate dynamics model in order to ensure correctness of trajectories. In the presence of uncertainty about the underlying model, there may exist unexpected trajectories that manifest as unexpected transitions under control of the strategy. While some disturbances can be captured by augmenting the dynamics model, such approaches may be conservative in that bisimulations may fail to exist for which strategies can be synthesized. In this paper, we consider games of the GR(1) fragment of LTL, and we characterize the tolerance of hybrid controllers to perturbations that appear as unexpected jumps (transitions) to states in the discrete strategy part of the controller. As a first step, we show robustness to certain unexpected transitions that occur in a finite manner, i.e., despite a certain number of unexpected jumps, the sequence of states obtained will still meet a stricter specification and hence the original specification. Additionally, we propose algorithms to improve robustness by increasing tolerance to additional disturbances. A robot gridworld example is presented to demonstrate the application of the developed ideas and also to perform empirical analysis

Sandspur, Vol 100, No 09, November 17, 1993

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.https://stars.library.ucf.edu/cfm-sandspur/1021/thumbnail.jp

Washington University Magazine, Winter 2005

https://digitalcommons.wustl.edu/ad_wumag/1174/thumbnail.jp

Sports Medicine and Physical Fitness

Sports Medicine and Physical Fitness has been a successful Special Issue, which addressed novel topics in any subject related to sports medicine, physical fitness, and human movement. The article collection was able to positively evaluate three systematic reviews, nineteen original articles, and one brief report. These encompassed a broad range of topics ranging from accident kinematics, soccer monitoring, children’s physical evaluation, adapted physical activity, physical evaluation for people with intellectual disabilities, performance analysis in rowers, ultramarathon racers, karateka’s, rugby players, volleyball and basketball players, and cross-fit athletes, and also aspects related to biomechanics, fatigue and injury prevention in racing motorcycle riders, gymnasts, and cyclists.These scientific contributions within the field of Sports Medicine and Physical Fitness broaden the understanding of specific aspects of each analyzed discipline.It has been a pleasure for the Editorial Team to have served the International Journal Of Environmental Research and Public Health

1999 Twenty Questions

The student yearbook of the Northern University High School, part of the Malcolm Price Laboratory School of the University of Northern Iowa.https://scholarworks.uni.edu/mpls_yearbooks/1013/thumbnail.jp

A PHILOSOPHICAL ANALYSIS OF OLYMPIC ELIGIBILITY, VALUES, AND AUXILIARY RULES

This dissertation examines whether or not the rules governing participation in the Olympic Games facilitate the attainment ofthe values and ideals associated with the Olympic Games. Compared to the constitutive and regulative rules of sport, little critical analysis has been done on sports’ auxiliary rules concerning who can compete and under whatconditions. Whilerestrictionsonentriesarewarrantedtoensurethesizeofthe Olympic Games does not grow to include an unmanageable number of competitors, some rules that limit eligibility appear to be more unfair and discriminatory than others. Utilizing a mixed ethical framework, which focuses on rule-consequentialism and the moral concepts of equality, justice, and moral desert, through a liberal feminist lens, this dissertation examines the moral acceptability o f current Olympic eligibility rules. Four components are common among many conceptions of Olympism. The four aspects include: 1) an emphasis on fairness and fair play, 2) expectations of equality and non-discrimination, 3) a focus on ethical behaviour, and 4) the belief that the Olympic Gamesoffereducationalprospectsforyouthsworldwide. Athematicanalysisofthe Olympic Charter and a representative sample ofrulebooks ofthe International Federations (IFs) rendered six themes of rules that restrict eligibility to compete at the Olympic Games: 1) sex and gender; 2) anti-doping; 3) citizenship; 4) behaviour and dispute resolution; 5) uniforms and competitive attire; and 6) age limits. Each theme was critically analyzed to determine if the rules restricting eligibility are morally acceptable or unacceptable and in need o f revision. Through a comparative analysis of the Olympic ideals and the eligibility rules of participation it was determined that auxiliary rules set by the IOC and IFs both hinder and m facilitatethepursuitoftheOlympicideals. Severalimposedauxiliaryrulespertainingto an athlete’s eligibility to compete at the Olympic Games are in opposition to the goal of promoting equality, fairness, ethical behaviour and education through sport. The most pressing inequities stem from rules that restrict women from competing in a program of events equitable to the men’s program and rules that violate athletes’ rights to autonomy and privacy

The frequency of falls in children judo training

Purpose: Falling techniques are inseparable part of youth judo training. Falling techniques are related to avoiding injuries exercises (Nauta et al., 2013). There is not good evidence about the ratio of falling during the training in children. Methods: 26 children (age 8.88±1.88) were video recorded on ten training sessions for further indirect observation and performance analysis. Results: Research protocol consisted from recording falls and falling techniques (Reguli et al., 2015) in warming up, combat games, falling techniques, throwing techniques and free fighting (randori) part of the training session. While children were taught almost exclusively forward slapping roll, backward slapping roll and sideward direct slapping fall, in other parts of training also other types of falling, as forward fall on knees, naturally occurred. Conclusions: Judo coaches should stress also on teaching unorthodox falls adding to standard judo curriculum (Koshida et al., 2014). Various falling games to teach children safe falling in different conditions should be incorporated into judo training. Further research to gain more data from groups of different age in various combat and non-combat sports is needed