Is There a Relationship Between Foot Reaction Time and Ankle Frontal Plane Torque in Female Soccer Athletes: A Pilot Study.

International Journal of Exercise Science 15(1): 1506-1513, 2022. The purpose of this study was to determine if a relationship existed between foot reaction time and ankle frontal plane peak torque in female soccer athletes. A one-shot case study design was selected for this investigation. Seventeen female college athletes volunteered to participate. Right and left foot reaction time measurements were assessed using 3x4 switch mats interfaced with a precise timing counter. Participants stood in front of the mat with eyes closed and responded to the auditory stimulus by touching the mat as fast as possible with their foot. Two trials were conducted per foot, and the best time was used to determine the reaction time score per foot. An isokinetic dynamometer assessed inversion and eversion peak torque for both right and left ankle joint at 120°/sec. Left peak torque eversion and right foot reaction time demonstrated a significant negative moderate relationship (r = -0.530; p value = 0.03). Left ankle peak torque eversion does have a significant moderate negative relationship to reaction time of the right foot; therefore, evasive dribbling movements which requires inversion and eversion torque could directly affect foot reaction time, resulting in improved dribbling performance for soccer athletes

Free Electron Laser performance with quadrupole magnet misalignment from shipboard vibrations

The Free Electron Laser (FEL) has been discussed and studied in the United States Navy's directed energy weapon efforts. The goal of these studies is to use the FEL as a ship's primary defensive weapon against incoming threats such as missiles, aircraft and small boats. This thesis is an analysis of the effects of shipboard vibration on the performance of an FEL. The focus of this analysis will be on the performance degradation due to quadrupole magnet misalignments from ship vibrations and flexing. This study is aimed at improving system design efforts by determining the sensitivity of an FEL on magnet misalignments due to shipboard vibration and flexing. Simulations were conducted on the magnets placed along the electron beam path between the end of the accelerator and the beginning of the undulator. Simulations within this study were conducted using the 3D FEL simulator designed and programmed at the Navy Postgraduate School and FELSIM designed and managed by Advanced Energy Systems.http://archive.org/details/freeelectronlase109453065US Navy (USN) author.Approved for public release; distribution is unlimited

The Influence of Employer-sponsored On-site Child Care on Employment of Nurses Who Work in Hospitals

This study was designed to answer the following research questions: 1. How does the availability of an employer-sponsored on-site child care center influence current employment choices of nurses selected for the study? 2. What influence does employer-sponsored on-site child care have on employee job performance? 3. What influence does employer-sponsored on-site child care have on employee absenteeism? 4. What differences exist in the descriptions of benefits of employer-sponsored on-site child care between nurses who commute from a rural area to work in an urban area and nurses who live and work in the same urban area