INJURY RATES, SEVERITY OF INJURY, AND ACCESS TO SPECIALTY HEALTH CARE OF AMERICAN INDIAN HIGH SCHOOL ATHLETES IN MONTANA

Introduction: Athletics are an integral part of American Indian (AI) life and culture. However, with participation there is a risk of receiving an injury. Sustaining an injury can be devastating to AI athletes that live on or near a reservation due to the rural location and disparities in health care. Objective: To determine Montana’s AI high school athletes’ injury rates, severity of injury, the current level of medical supervision, and type of health care they seek/receive. Methods: The procedure for collecting data consisted of sending out surveys to head coaches at 11 high schools that met the inclusion criteria. Analysis: Numerical data was analyzed using Microsoft Excel 2007. Discussion: Injury rates were fairly low, with most injuries being minor. Medical supervision at practices/competitions was inadequate and the majority of injured athletes sought medical care from Indian Health Service. Access to specialty care was also found to be inadequate

Social Preferences and the Efficiency of Bilateral Exchange

Under what conditions do social preferences, such as altruism or a concern for fair outcomes, generate efficient trade? I analyze theoretically a simple bilateral exchange game: Each player sequentially takes an action that reduces his own material payoff but increases the other player’s. Each player’s preferences may depend on both his/her own material payoff and the other player’s. I identify necessary conditions and sufficient conditions on the players’ preferences for the outcome of their interaction to be Pareto efficient. The results have implications for interpreting the rotten kid theorem, gift exchange in the laboratory, and gift exchange in the field

The Apache Point Observatory Galactic Evolution Experiment (APOGEE)

The Apache Point Observatory Galactic Evolution Experiment (APOGEE), one of the programs in the Sloan Digital Sky Survey III (SDSS-III), has now completed its systematic, homogeneous spectroscopic survey sampling all major populations of the Milky Way. After a three-year observing campaign on the Sloan 2.5 m Telescope, APOGEE has collected a half million high-resolution (R ~ 22,500), high signal-to-noise ratio (>100), infrared (1.51–1.70 μm) spectra for 146,000 stars, with time series information via repeat visits to most of these stars. This paper describes the motivations for the survey and its overall design—hardware, field placement, target selection, operations—and gives an overview of these aspects as well as the data reduction, analysis, and products. An index is also given to the complement of technical papers that describe various critical survey components in detail. Finally, we discuss the achieved survey performance and illustrate the variety of potential uses of the data products by way of a number of science demonstrations, which span from time series analysis of stellar spectral variations and radial velocity variations from stellar companions, to spatial maps of kinematics, metallicity, and abundance patterns across the Galaxy and as a function of age, to new views of the interstellar medium, the chemistry of star clusters, and the discovery of rare stellar species. As part of SDSS-III Data Release 12 and later releases, all of the APOGEE data products are publicly available