Shordy following release of the To Err is Human report exposing serious threats to patient safety, the Institute of Medicine (10M) released a second report, Crossing the Quality Chasm,' which revealed other problems in our health care system. Not only was rhe health care system shown to be zmm!e, with needless numbers of patient deaths and injuries, it was found to be inef jective, with an over...

Although sociodemographic factors are one aspect of understanding the effects of neighborhood environments on health, equating neighborhood quality with socioeconomic status ignores the important role of physical neighborhood attributes. Prior work on neighborhood environments and health has relied primarily on level of socioeconomic disadvantage as the indicator of neighborhood quality without...

JOPERD • Volume 77 No. 6 • August 2006 W hen the clock struck midnight on December 31, 2000, we moved into the 21st century. Noted historian Roberta Park (1989) has suggested that the turn of the century marked the beginning of the second century for the profession of physical education. She also noted that it was time for physical education to move on from its status as a “second-class” profes...

Physical modeling of the phonatory and vocal tract systems has served as a useful tool to study many aspects of speech production. This paper offers a brief review of two specific types of physically-based models. One for simulating the vibration of the vocal folds and another for representing the vocal tract shape in the form of an area function. While much of the technical detail of these mod...

Physical activity (PA) professionals and participants recognize enhanced quality of life (QoL) as a benefit of and motivator for PA. However, QoL measures are often problematic and rarely consider the participants'perspective. This paper focuses on recent findings from a larger project on the role of QoL in PA and health promotion. More specifically, we focus on the views of participants and po...

background: physical wedges are still widely used as beam modifiers in external beam radiotherapy. however the presence of them in the beam trace may cause beam hardening which may not be considered in many treatment planning systems. the aim of this study is to investigate the beam hardening effect generated by physical wedges via different beam quality indexes as photon spectrum, half value l...