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Decision theory

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https://www.readbyqxmd.com/read/29149075/a-game-theoretic-approach-for-balancing-energy-consumption-in-clustered-wireless-sensor-networks
#1
Liu Yang, Yinzhi Lu, Lian Xiong, Yang Tao, Yuanchang Zhong
Clustering is an effective topology control method in wireless sensor networks (WSNs), since it can enhance the network lifetime and scalability. To prolong the network lifetime in clustered WSNs, an efficient cluster head (CH) optimization policy is essential to distribute the energy among sensor nodes. Recently, game theory has been introduced to model clustering. Each sensor node is considered as a rational and selfish player which will play a clustering game with an equilibrium strategy. Then it decides whether to act as the CH according to this strategy for a tradeoff between providing required services and energy conservation...
November 17, 2017: Sensors
https://www.readbyqxmd.com/read/29148082/insights-into-flood-coping-appraisals-of-protection-motivation-theory-empirical-evidence-from-germany-and-france
#2
Philip Bubeck, W J Wouter Botzen, Jonas Laudan, Jeroen C J H Aerts, Annegret H Thieken
Protection motivation theory (PMT) has become a popular theory to explain the risk-reducing behavior of residents against natural hazards. PMT captures the two main cognitive processes that individuals undergo when faced with a threat, namely, threat appraisal and coping appraisal. The latter describes the evaluation of possible response measures that may reduce or avert the perceived threat. Although the coping appraisal component of PMT was found to be a better predictor of protective intentions and behavior, little is known about the factors that influence individuals' coping appraisals of natural hazards...
November 17, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/29144068/going-public-early-disclosure-of-food-risks-for-the-benefit-of-public-health
#3
Benjamin Chapman, Maria Sol Erdozaim, Douglas Powell
Often during an outbreak of foodborne illness, there are health officials who have data indicating that there is a risk prior to notifying the public. During the lag period between the first public health signal and some release of public information, there are decision makers who are weighing evidence with the impacts of going public. Multiple agencies and analysts have lamented that there is not a common playbook or decision tree for how public health agencies determine what information to release and when...
March 2017: Journal of Environmental Health
https://www.readbyqxmd.com/read/29143635/a-systematic-review-of-concepts-related-to-women-s-empowerment-in-the-perinatal-period-and-their-associations-with-perinatal-depressive-symptoms-and-premature-birth
#4
Esmeralda R Garcia, Ilona S Yim
BACKGROUND: The perinatal period, which we here define as pregnancy and the first year postpartum, is a time in women's lives that involves significant physiological and psychosocial change and adjustment, including changes in their social status and decision-making power. Supporting women's empowerment at this particular time in their lives may be an attractive opportunity to create benefits for maternal and infant health outcomes such as reductions in perinatal depressive symptoms and premature birth rates...
November 8, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29140619/-i-would-go-if-my-arm-were-hanging-off-a-qualitative-study-of-healthcare-seeking-behaviors-of-small-farm-owners-in-central-new-york-state
#5
David J Droullard, Pamela J Tinc, Julie A Sorensen
Compared to their rural non-farming peers, farmers are less likely to access preventive healthcare services; however, the reasons for this disparity are poorly understood. We conducted semi-structured interviews with a total of 30 farm household members in central New York. Interview topics included farming identity, perceptions of one's health, past experiences with acute and preventive healthcare, and attitudes toward seeking healthcare services. Grounded Theory analysis of the interview transcripts revealed that (1) utilizing healthcare services is felt to be in conflict with the farming identity, (2) the need to conserve time and money for farm applications poses a barrier to healthcare utilization, (3) farmers decide to seek healthcare when they believe it is necessary to ensure survival of the farm, and (4) the decision to seek healthcare is most strongly driven by the presence of intolerable symptoms, prompting from others, and the perception that treatment will yield clear benefits...
January 26, 2017: Journal of Agricultural Safety and Health
https://www.readbyqxmd.com/read/29140436/-%C3%A2-what-god-and-the-angels-know-of-us-character-autonomy-and-best-interests-in-minimally-conscious-state
#6
Giles Birchley
Determining the best interests of incapacitated patients has been observed to be an opaque area of the law, and this is no less so in decisions about the (non-)treatment of patients in the minimally conscious state. A systematic examination of the way best interests are used in judgments relating to this population suggests that narratives involving the character of the patient frequently form an important plank of judicial reasoning. Since insights into the concept of best interests may be gained by an engagement with the philosophy of well-being, I identify the court's character-based approach with perfectionist theories of well-being...
November 13, 2017: Medical Law Review
https://www.readbyqxmd.com/read/29137666/utilization-of-the-behavior-change-wheel-framework-to-develop-a-model-to-improve-cardiometabolic-screening-for-people-with-severe-mental-illness
#7
Christina Mangurian, Grace C Niu, Dean Schillinger, John W Newcomer, James Dilley, Margaret A Handley
BACKGROUND: Individuals with severe mental illness (e.g., schizophrenia, bipolar disorder) die 10-25 years earlier than the general population, primarily from premature cardiovascular disease (CVD). Contributing factors are complex, but include systemic-related factors of poorly integrated primary care and mental health services. Although evidence-based models exist for integrating mental health care into primary care settings, the evidence base for integrating medical care into specialty mental health settings is limited...
November 14, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/29135765/the-effects-of-price-and-health-consciousness-and-satisfaction-on-the-medical-tourism-experience
#8
JungKun Park, Jiseon Ahn, Weon Sang Yoo
The objective of this study was to analyze the effects of price and health consciousness on medical tourism. Accordingly, we explore the utility of the theory of planned behavior for assessing the relationships between several variables and explain consumers' intentions to be repeat medical tourists. A 26-item questionnaire was developed, and data were collected from 407 patients who visited South Korea for medical purposes. Structural equation modeling was used to analyze the data. The results indicate that medical tourists' price consciousness was significant with respect to their satisfaction with medical and travel services...
November 2017: Journal of Healthcare Management / American College of Healthcare Executives
https://www.readbyqxmd.com/read/29135752/experiences-and-shared-meaning-of-teamwork-and-interprofessional-collaboration-among-health-care-professionals-in-primary-health-care-settings-a-systematic-review
#9
Carine Sangaleti, Mariana Cabral Schveitzer, Marina Peduzzi, Elma Lourdes Campos Pavone Zoboli, Cassia Baldini Soares
BACKGROUND: During the last decade, teamwork has been addressed under the rationale of interprofessional practice or collaboration, highlighted by the attributes of this practice such as: interdependence of professional actions, focus on user needs, negotiation between professionals, shared decision making, mutual respect and trust among professionals, and acknowledgment of the role and work of the different professional groups. Teamwork and interprofessional collaboration have been pointed out as astrategy for effective organization of health care services as the complexity of healthcare requires integration of knowledge and practices from differente professional groups...
November 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29135751/perceptions-experiences-and-preferences-of-patients-receiving-a-clinician-s-touch-during-intimate-care-and-procedures-a-qualitative-systematic-review
#10
Chad O'Lynn, Adam Cooper, Lisa Blackwell
BACKGROUND: Clinical practice frequently involves the practitioner touching patients' bodies in areas that are highly personal. If inappropriately performed, such intimate touch may result in much anxiety, confusion and misinterpretation. Examination of evidence is necessary to guide practice in this area to mitigate risks and foster optimal clinician-patient relations and care. OBJECTIVES: The objective of this qualitative systematic review was to identify and synthesize findings on the perceptions, experiences and preferences of patients receiving a clinician's touch during intimate care and procedures INCLUSION CRITERIA TYPES OF PARTICIPANTS: The current review considered studies that included patients who had received a clinician's touch during intimate care and procedures...
November 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29134838/the-analyst-s-use-of-theory-or-theories-the-play-of-theory
#11
Steven H Cooper
Two clinical vignettes demonstrate a methodological approach that guides the analyst's attention to metaphors and surfaces that are the focus of different theories. Clinically, the use of different theories expands the metaphorical language with which the analyst tries to make contact with the patient's unconscious life. Metaphorical expressions may be said to relate to each other as the syntax of unconscious fantasy (Arlow 1979). The unconscious fantasy itself represents a metaphorical construction of childhood experience that has persisted, dynamically expressive and emergent into adult life...
October 2017: Journal of the American Psychoanalytic Association
https://www.readbyqxmd.com/read/29133515/-rather-one-more-chemo-than-one-less%C3%A2-oncologists-and-oncology-nurses-reasons-for-aggressive-treatment-of-young-adults-with-advanced-cancer
#12
Katsiaryna Laryionava, Pia Heußner, Wolfgang Hiddemann, Eva C Winkler
BACKGROUND: Empirical research demonstrates that there is a tendency to administer tumor-directed therapy to patients with advanced cancer close to death, especially if they are young. The aim of this qualitative study was to understand oncologists' treatment decisions and oncology nurses' perception of these decisions in young adult patients and to investigate the extent to which young age was a factor in cancer treatment decisions. MATERIALS AND METHODS: We conducted 29 face-to-face interviews with oncologists and oncology nurses at the Department of Hematology and Oncology at the University Hospital in Munich, Germany...
November 13, 2017: Oncologist
https://www.readbyqxmd.com/read/29133418/normalized-value-coding-explains-dynamic-adaptation-in-the-human-valuation-process
#13
Mel W Khaw, Paul W Glimcher, Kenway Louie
The notion of subjective value is central to choice theories in ecology, economics, and psychology, serving as an integrated decision variable by which options are compared. Subjective value is often assumed to be an absolute quantity, determined in a static manner by the properties of an individual option. Recent neurobiological studies, however, have shown that neural value coding dynamically adapts to the statistics of the recent reward environment, introducing an intrinsic temporal context dependence into the neural representation of value...
November 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29133403/parochial-trust-and-cooperation-across-17-societies
#14
Angelo Romano, Daniel Balliet, Toshio Yamagishi, James H Liu
International challenges such as climate change, poverty, and intergroup conflict require countries to cooperate to solve these complex problems. However, the political tide in many countries has shifted inward, with skepticism and reluctance to cooperate with other countries. Thus, cross-societal investigations are needed to test theory about trust and cooperation within and between groups. We conducted an experimental study in 17 countries designed to test several theories that explain why, who, and where people trust and cooperate more with ingroup members, compared with outgroup members...
November 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29132626/early-hospital-mortality-prediction-of-intensive-care-unit-patients-using-an-ensemble-learning-approach
#15
Aya Awad, Mohamed Bader-El-Den, James McNicholas, Jim Briggs
BACKGROUND: Mortality prediction of hospitalized patients is an important problem. Over the past few decades, several severity scoring systems and machine learning mortality prediction models have been developed for predicting hospital mortality. By contrast, early mortality prediction for intensive care unit patients remains an open challenge. Most research has focused on severity of illness scoring systems or data mining (DM) models designed for risk estimation at least 24 or 48h after ICU admission...
December 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29131714/understanding-variations-in-secondary-findings-reporting-practices-across-u-s-genome-sequencing-laboratories
#16
Sara Ackerman, Barbara Koenig
BACKGROUND: Increasingly used for clinical purposes, genome and exome sequencing can generate clinically relevant information that is not directly related to the reason for testing (incidental or secondary findings). Debates about the ethical implications of secondary findings were sparked by the American College of Medical Genetics (ACMG)'s 2013 policy statement, which recommended that laboratories report pathogenic alterations in 56 genes. Although wide variation in laboratories' secondary findings policies has been reported, little is known about its causes...
November 13, 2017: AJOB Empirical Bioethics
https://www.readbyqxmd.com/read/29128659/on-line-confidence-monitoring-during-decision-making
#17
Dror Dotan, Florent Meyniel, Stanislas Dehaene
Humans can readily assess their degree of confidence in their decisions. Two models of confidence computation have been proposed: post hoc computation using post-decision variables and heuristics, versus online computation using continuous assessment of evidence throughout the decision-making process. Here, we arbitrate between these theories by continuously monitoring finger movements during a manual sequential decision-making task. Analysis of finger kinematics indicated that subjects kept separate online records of evidence and confidence: finger deviation continuously reflected the ongoing accumulation of evidence, whereas finger speed continuously reflected the momentary degree of confidence...
November 9, 2017: Cognition
https://www.readbyqxmd.com/read/29128333/nf-%C3%AE%C2%BAb-dynamics-discriminate-between-tnf-doses-in-single-cells
#18
Qiuhong Zhang, Sanjana Gupta, David L Schipper, Gabriel J Kowalczyk, Allison E Mancini, James R Faeder, Robin E C Lee
Although cytokine-dependent dynamics of nuclear factor κB (NF-κB) are known to encode information that regulates cell fate decisions, it is unclear whether single-cell responses are switch-like or encode more information about cytokine dose. Here, we measure the dynamic subcellular localization of NF-κB in response to a range of tumor necrosis factor (TNF) stimulation conditions to determine the prevailing mechanism of single-cell dose discrimination. Using an information theory formalism that accounts for signaling dynamics and non-responsive cell subpopulations, we find that the information transmission capacity of single cells exceeds that predicted from a switch-like response...
November 7, 2017: Cell Systems
https://www.readbyqxmd.com/read/29128004/perfusion-and-permeability-imaging-for-head-and-neck-cancer-theory-acquisition-postprocessing-and-relevance-to-clinical-imaging
#19
REVIEW
Adam J Davis, Razia Rehmani, Ashok Srinivasan, Girish M Fatterpekar
Perfusion and permeability computed tomography and MR imaging applied to head and neck cancer provide powerful diagnostic and prognostic tools for clinicians. Understanding the basics of these techniques allows the radiologist to make informed decisions regarding the use of modeling algorithms, acquisition parameters, and postprocessing techniques. This helps to ensure that studies are acquired, analyzed, and reported appropriately and erroneous results are avoided. These techniques are highly automated, widely available, and can be easily and safely incorporated into daily imaging workflow...
February 2018: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/29127584/-if-you-choose-to-abort-you-have-acted-as-an-instrument-of-satan-zimbabwean-health-service-providers-negative-constructions-of-women-presenting-for-post-abortion-care
#20
Malvern Chiweshe, Catriona Macleod
PURPOSE: Health service providers play a crucial role in providing post abortion care in countries where abortion legislation is restrictive and abortion is stigmatised. Research in countries where these factors apply has shown that health service providers can be barriers to women accessing post abortion services. Much of this research draws from attitude theory. In this paper, we utilise positioning theory to show how the ways in which Zimbabwean health service providers' position women and themselves are rooted in cultural and social power relations...
November 10, 2017: International Journal of Behavioral Medicine
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