Regardless of the surgery performed, dialysis dependence is a significant risk factor for major post-surgical morbidity and mortality after operative treatment of femoral neck fractures in this population. Increased mechanical failure in the internal fixation group was not observed. The increased risk associated with caring for this population should be understood when considering surgical intervention and counseling patients.
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ABSTRACTPlasma and ultraviolet (UV) ozone treatments were compared as methods to functionalize ultrahigh molecular weight polyethylene films in order to make them more compatible with materials or reactive for subsequent surface chemistry. Oxidation states and atomic compositions were determined using x-ray photoelectron spectroscopy, while surface energy and bond stability were probed with contact angle goniometry. Both modification techniques increased the surface energy of the polymer, and the bonds formed were found to be stable over a period of 30 days. Plasma treatment times were much shorter than UV ozone; thus, plasma was determined to be a more efficient surface modification technique. iii Contents
Improving virtual team collaboration has been a centerpiece of many computer mediated communication research efforts. Team collaboration presents unique challenges which are further exacerbated when such collaboration occurs in high-tempo environments that require “lean” communication affordances because they are not suited to traditional methods of rich communication such as text-based chat. Competitive multiplayer games can provide unique insights into how virtual teams communicate with limited communication affordance and under stress. In this work, we employed a mixed-method analysis of specific communication tools in a popular MOBA game
Heroes of the Storm
. Our study focuses on how players of the game use a gesturing communication system, called “Pings”, an example of lean communication affordance, to communicate within a team and its impact on team performance. We found that players appropriate the pings in distinct ways and exhibit different communication styles and these styles have different effects on the overall team performance. Our findings have implications for the design of emerging communication tools for virtual teams and can serve as guidelines to optimize communication in virtual teams.
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