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As anyone who has ever unwound a string of holiday lights or detangled a lock of snarled hair knows, undoing a knot of fibers takes a lot longer than tangling it up in the first place.
Computer Model Is ‘Crystal Ball’ for E. Coli Bacteria
Computer Model Crystal Ball E. Coli Bacteria
2016/11/4
It’s difficult to make predictions, especially about the future, and even more so when they involve the reactions of living cells — huge numbers of genes, proteins and enzymes, embedded in complex pat...
Accuracy and Reliability of a New Tennis Ball Machine
Technology tennis testing training ball-machine
2016/7/7
The aim was to evaluate the reliability of a newly-developed ball machine named 'Hightof', on the field and to assess its accuracy. The experiment was conducted in the collaboration of the 'Hawk-Eye' ...
Comparison of Ball-And-Racket Impact Force in Two-Handed Backhand Stroke Stances for Different-Skill-Level Tennis Players
Biomechanics upper extremity kinetic acceleration open stance square stance
2016/7/7
This study compared the kinetic roles of the upper extremities in racket impact force generation between the open stance (OS) and square stance (SS) for tennis players with different skill levels in t...
The Future of Medicine Could Be Found In This Tiny Crystal Ball
Future of Medicine Tiny Crystal Ball
2016/2/23
A Drexel University materials scientist has discovered a way to grow a crystal ball in a lab. Not the kind that soothsayers use to predict the future, but a microscopic version that could be used to e...
Professor Gregory Ball，Department of Psychology at University of Maryland（图）
Professor Gregory Ball Department of Psychology at University of Maryland
2015/9/25
Dr. Ball joined the University of Maryland in 2014 as Professor and Dean of the College of Behavioral and Social Science.
Dr. Ball was previously Vice Dean for Science and Research Infrastructure in ...
Ball Machine Usage in Tennis: Movement Initiation and Swing Timing While Returning Balls from a Ball Machine and from a Real Server
Tennis ball machine server return stroke movement initiation
2015/5/22
Practicing with the use of a ball machine could handicap a player compared to playing against an actual opponent. Recent studies have shown some differences in swing timing and movement coordination, ...
Effects of Stabilization Exercise Using a Ball on Mutifidus Cross-Sectional Area in Patients with Chronic Low Back Pain
Stabilization exercise ball multifidus cross-sectional area low back pain
2015/5/18
The purpose of this study was to compare the effects of lumbar stabilization exercises using balls to the effects of general lumbar stabilization exercises with respect to changes in the cross section...
Effects of a 12 Week SAQ Training Programme on Agility with and without the Ball among Young Soccer Players
speed specific agility change of direction SAQ
2015/5/14
The purpose of this study was to determine the effects of a 12 week conditioning programme involving speed, agility and quickness (SAQ) training and its effect on agility performance in young soccer p...
Influence Of Opposition On Ball Velocity In The Handball Jump Throw
Team handball jump throw ball velocity defence
2015/5/7
The purpose of the present study was to investigate the influence of different degrees of opposition on ball velocity in the jump throw in elite, amateur and adolescent team handball players. Thus, on...
Development of body composition, hormone profile, physical fitness, general perceptual motor skills, soccer skills and on-the-ball performance in soccerspecific laboratory test among adolescent soccer players
Football youth perception growth puberty
2015/5/6
The aim of the present study was to examine the development of
on-the-ball skills in soccer-specific laboratory test and to examine how traditional measures of body composition, hormone
profile, p...
The Influence of Ball Velocity and Court Illumination on Reaction Time for Tennis Volley
premotor reaction time motor reaction time electromyogram tennis
2015/5/4
The he purpose of this study is to examine the effects of ball velocity, court illumination, and volley type on the reaction time (RT) of a tennis athlete for a volley stroke. Eights cases with two di...
Four Ball Best Ball 1
Strategies for four ball best ball golf selecting pairs of four ball best ball players
2015/5/4
In this paper a four-ball-best-ball (4BBB) model for pairs of golf players is set up. The 4BBB match-play scoring system is seen to satisfy a basic requirement of fairness. It is shown that it is not ...
Differences in Ball Sports Athletes Speed Discrimination Skills Before and After Exercise Induced Fatigue
Decision-making perception exhaustion
2015/4/22
Substantial research exists in relation to the effect of fatigue on the cognitive skills of athletes. Very few studies in the sport domain, however, have investigated decision-making time and accuracy...
Privacy and Security Risks and Requirements with Healthcare IT: Hitting a Home Run Instead of a Foul Ball
electronic discovery privacy security health information social media cloud computing wireless mobile devices
2014/12/20
Using baseball as a metaphor, this practical, engaging session will explore the security and privacy risks with a number of technologies for storing, handling and communicating health information and ...