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Kate Smith - One of the best experts on this subject based on the ideXlab platform.

Ellen L. Haring - One of the best experts on this subject based on the ideXlab platform.

A. Nickles Fader - One of the best experts on this subject based on the ideXlab platform.

  • Lifestyle and Weight Management Counseling in Uterine Cancer Survivors: A Study of the Uterine Cancer Action Network
    International Journal of Gynecological Cancer, 2015
    Co-Authors: Jill Tseng, A.m. Jernigan, Ritu Salani, Robert E. Bristow, Kara Long Roche, A. Nickles Fader
    Abstract:

    Objective The purpose of this study was to examine the experiences, attitudes, and preferences of uterine cancer survivors with regard to weight and lifestyle counseling. Materials and Methods Members of the US Uterine Cancer Action Network of the Foundation for Women’s Cancer were invited to complete a 45-item, Web-based survey. Standard descriptive statistical methods and χ2 tests were used to analyze responses. Results One hundred eighty (28.3%) uterine cancer survivors completed the survey. Median age was 58 years, 85% were white, and median survivorship period was 4.4 years. Most had stage I–II disease (69%) and were overweight or obese (65%). Eighty-nine percent of respondents received care by a gynecologic oncologist. Increased respondent body mass index was associated with decreased exercise frequency (P = 0.016). Only 50% of respondents underwent any weight/lifestyle counseling, with those living in the West and Southwest reporting the highest rates (70.8% and 69.2%, P = 0.011). Most who received counseling felt that discussions were motivating, performed in a sensitive manner, and did not undermine the patient–physician relationship. Specific recommendations were rarely offered; there were no reported referrals to weight loss programs or bariatric specialists, and few (6%) reported referrals to nutritionists. Respondents (85%) preferred their gynecologic oncologist address weight using direct, face-to-face counseling with specific recommendations regarding interventions and referral to specialists. Finally, self-reported overweight respondents experienced greater success with weight loss compared to those reporting obesity or morbid obesity (30.8% vs 15.8% vs 12.5%, P = 0.011). Conclusions Uterine cancer survivors reported high obesity, low activity rates, and a desire for substantive weight loss counseling from their gynecologic oncologists. Respondents suggested that current counseling practices are inadequate and incongruent with their needs. Further research to define optimal timing, interventional strategies, and specific recommendations for successful lifestyle changes in this population is warranted.

  • Endometrial cancer survivor perspectives on weight loss and lifestyle modifications: A Uterine Cancer Action Network study
    Gynecologic Oncology, 2015
    Co-Authors: Jill Tseng, Kara C. Long, A.m. Jernigan, Ritu Salani, Robert E. Bristow, A. Nickles Fader
    Abstract:

    Objectives: To examine the experiences and preferences of uterine cancer (UC) survivors with regard to weight and lifestyle counseling performed by their cancer providers. Methods: Members of the Uterine Cancer Action Network of the Foundation for Women's Cancer were invited to complete a 45-item web-based survey. Standard descriptive statistical methods and chi square tests were used to analyze responses. Results: For the 177/657 UC survivors who completed the survey (27%), themedian agewas 58 years, 90%werewhite, and themedian length of survivorship was 4.4 years. Most were diagnosed with stage I disease (89%). Eighty-nine percent received their cancer care from a gynecologic oncologist (GO). Sixty-five percent classified themselves as overweight or obese. Increased respondent bodymass index was associated with decreased exercise frequency (P = 0.016). Only 50% of respondents received any weight or lifestyle counseling. Counseling rates differed significantly between geographic regions, with respondents in the West and Southwest reporting the highest rates (70.8% and 69.2%, P = 0.011). Most who received counseling felt that discussions were motivating, were performed sensitively, and did not undermine the patient–physician relationship. However, 72% of respondents did not believe that specific recommendations or interventions were offered; no survivors reported referrals to weight loss programs or bariatric specialists and few (6%) reported referrals to nutritionists. Overweight patients experienced greater successes with weight loss/ lifestyle changes compared to their obese or morbidly obese counterparts (30.8% vs. 15.8% vs. 12.5%, P = 0.011). Respondents (85%) preferred that their GO address weight using direct, face-toface counseling, with specific recommendations for interventions and referral to weight specialists. Conclusions: In this UC Action Network study, survivors reported high obesity and low activity rates and desire for substantive weight loss counseling from their GOs. Respondents suggested that current counseling practices are inadequate and incongruent with their needs, especially for morbidly obese survivors. Specific weight loss recommendations, with referrals to other specialists for lifestyle interventions, were desired.

Kate H. Thomas - One of the best experts on this subject based on the ideXlab platform.

Haibo He - One of the best experts on this subject based on the ideXlab platform.

  • power system stability control for a wind farm based on adaptive dynamic programming
    IEEE Transactions on Smart Grid, 2015
    Co-Authors: Yufei Tang, Haibo He
    Abstract:

    In this paper, a goal representation heuristic dynamic programming (GrHDP) based controller is developed for the doubly-fed induction generator based wind farm to improve the system transient stability under fault conditions. The proposed controller is based on adaptive dynamic programming (ADP) techniques to approximate the optimal control policy according to the interAction between the controller and the power plant. Compared to existing ADP approaches with one Action Network and one critic Network, our GrHDP architecture introduces an additional Network, i.e., the reference Network, to form an internal goal/reward representation. This better mapping between the system state and the control Action significantly improves the control performance. The effectiveness of the proposed approach is validated via two cases. The first case investigates a revised four-machine two-area system with high wind penetration and a static synchronous compensator. The second case is a practical size power system with wind farm in Liaoning Province in China. Detailed simulation analysis and comparative studies with traditional ADP approaches are presented to demonstrate the superior performance of our method.

  • a three Network architecture for on line learning and optimization based on adaptive dynamic programming
    Neurocomputing, 2012
    Co-Authors: Haibo He, Zhen Ni, Jian Fu
    Abstract:

    In this paper, we propose a novel adaptive dynamic programming (ADP) architecture with three Networks, an Action Network, a critic Network, and a reference Network, to develop internal goal-representation for online learning and optimization. Unlike the traditional ADP design normally with an Action Network and a critic Network, our approach integrates the third Network, a reference Network, into the actor-critic design framework to automatically and adaptively build an internal reinforcement signal to facilitate learning and optimization overtime to accomplish goals. We present the detailed design architecture and its associated learning algorithm to explain how effective learning and optimization can be achieved in this new ADP architecture. Furthermore, we test the performance of our architecture both on the cart-pole balancing task and the triple-link inverted pendulum balancing task, which are the popular benchmarks in the community to demonstrate its learning and control performance over time.