Automatic subject indexing of Dryad repository datasets: performance evaluation of HIVE and SmartHIVE

HIVE is an automatic metadata application being considered for the Dryad data repository. The goals of this study were to 1) determine if HIVE performance can be improved by subject training and 2) determine HIVE’s effectiveness in automatically generating controlled vocabulary terms that can be used to represent scientific data sets. HIVE performance was evaluated by 1) matching of HIVE-generated keywords with manually generated index terms (precision and recall) and 2) human evaluation of keyword relevancy. Part 1 of the study found that subject training HIVE had no effect on the number of "correct" keywords, precision, or recall. Part 2 found that despite large inter-evaluator inconsistency, the trend was for domain experts to assign a statistically similar number of keywords as "relevant" to both the data (x=4.0) and the articles (x=3.3) suggesting that HIVE may be useful in creating subject metadata for data sets from the full-text article

Resonant nonlinear magneto-optical effects in atoms

In this article, we review the history, current status, physical mechanisms, experimental methods, and applications of nonlinear magneto-optical effects in atomic vapors. We begin by describing the pioneering work of Macaluso and Corbino over a century ago on linear magneto-optical effects (in which the properties of the medium do not depend on the light power) in the vicinity of atomic resonances, and contrast these effects with various nonlinear magneto-optical phenomena that have been studied both theoretically and experimentally since the late 1960s. In recent years, the field of nonlinear magneto-optics has experienced a revival of interest that has led to a number of developments, including the observation of ultra-narrow (1-Hz) magneto-optical resonances, applications in sensitive magnetometry, nonlinear magneto-optical tomography, and the possibility of a search for parity- and time-reversal-invariance violation in atoms.Comment: 51 pages, 23 figures, to appear in Rev. Mod. Phys. in Oct. 2002, Figure added, typos corrected, text edited for clarit

Facilitating Factors and Barriers to Weight Management in Women: Physician Perspectives

Purpose: The complexity of addressing overweight and obesity in women has been an ongoing public health and health care challenge. While the mechanism for addressing overweight and obesity in women remains unclear, it has been speculated that disparities in overweight and obesity by race and gender contribute to the complexity. The purpose of the present study was to examine perceptions of primary care physicians when discussing weight management with their patients. Methods: We conducted focus group discussions exploring facilitators and barriers to discussing weight management and weight loss among women patients. Participants included 18 family medicine and internal medicine physicians who were recruited using a snowball sampling technique from two large urban institutions. Focus group discussions were transcribed verbatim. Responses were then codified and analyzed in frequency of occurrence using specialized computer software. Results: Nine themes emerged from group discussions. These recurring themes reflected three overarching critical points: 1) potential utility of the primary care setting to address weight management; 2) the importance of positive patient-provider communication in supporting weight loss efforts; and 3) acknowledgement of motivation as intrinsic or extrinsic, and its role in obesity treatment. Conclusions: Physician perceptions of their own lack of education or training and their inability to influence patient behaviors play crucial roles in discussing weight management with patients

Facilitating Factors and Barriers to Weight Management in Women: Physician Perspectives

Purpose: The complexity of addressing overweight and obesity in women has been an ongoing public health and health care challenge. While the mechanism for addressing overweight and obesity in women remains unclear, it has been speculated that disparities in overweight and obesity by race and gender contribute to the complexity. The purpose of the present study was to examine perceptions of primary care physicians when discussing weight management with their patients. Methods: We conducted focus group discussions exploring facilitators and barriers to discussing weight management and weight loss among women patients. Participants included 18 family medicine and internal medicine physicians who were recruited using a snowball sampling technique from two large urban institutions. Focus group discussions were transcribed verbatim. Responses were then codified and analyzed in frequency of occurrence using specialized computer software. Results: Nine themes emerged from group discussions. These recurring themes reflected three overarching critical points: 1) potential utility of the primary care setting to address weight management; 2) the importance of positive patient-provider communication in supporting weight loss efforts; and 3) acknowledgement of motivation as intrinsic or extrinsic, and its role in obesity treatment. Conclusions: Physician perceptions of their own lack of education or training and their inability to influence patient behaviors play crucial roles in discussing weight management with patients

Weight loss associated with employee income in an incentivized employee wellness program

OBJECTIVE: We examined the relationship between the type of incentivized wellness program and employee weight loss and the effects of participant income. METHODS: We retrospectively examined employees who participated in one of six weight loss wellness programs, which were categorized for the present analysis: reweigh/body mass index, Coaching, and Weight Watchers/Meal Replacement. Those who participated were eligible for a $350/year insurance premium discount. RESULTS: Employees in the low-income category of$45K or less participated at a higher rate, however, did not lose as much weight as those participants in the higher income categories of $70K or more. We found a positive association with weight loss in two of the categories, reweigh/body mass index, and Weight Watchers/Meal Replacement programs. CONCLUSION: Wellness programs have a significant impact on employee weight loss, but this relationship may vary across the income level of participants