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Decision theory

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https://www.readbyqxmd.com/read/28097060/why-choose-random-forest-to-predict-rare-species-distribution-with-few-samples-in-large-undersampled-areas-three-asian-crane-species-models-provide-supporting-evidence
#1
Chunrong Mi, Falk Huettmann, Yumin Guo, Xuesong Han, Lijia Wen
Species distribution models (SDMs) have become an essential tool in ecology, biogeography, evolution and, more recently, in conservation biology. How to generalize species distributions in large undersampled areas, especially with few samples, is a fundamental issue of SDMs. In order to explore this issue, we used the best available presence records for the Hooded Crane (Grus monacha, n = 33), White-naped Crane (Grus vipio, n = 40), and Black-necked Crane (Grus nigricollis, n = 75) in China as three case studies, employing four powerful and commonly used machine learning algorithms to map the breeding distributions of the three species: TreeNet (Stochastic Gradient Boosting, Boosted Regression Tree Model), Random Forest, CART (Classification and Regression Tree) and Maxent (Maximum Entropy Models)...
2017: PeerJ
https://www.readbyqxmd.com/read/28093020/what-causes-the-greater-perceived-similarity-of-consonant-transposed-nonwords
#2
Teresa Schubert, Sachiko Kinoshita, Dennis Norris
Nonwords created by transposing two non-adjacent orthographic consonants (CONDISER) have been reported to produce more priming for their baseword (CONSIDER), and to be classified as a nonword less readily than nonwords created by transposing two orthographic vowels (CINSODER). We investigate the origin of this difference and its relevance for theories of letter position coding. In the unprimed versions of the lexical decision and same-different tasks, a consonant-vowel difference was found in the transposition condition, not when those letters are substituted (Experiment 1)...
January 17, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28089913/physicians-perception-of-alternative-displays-of-clinical-research-evidence-for-clinical-decision-support-a-study-with-case-vignettes
#3
Stacey L Slager, Charlene R Weir, Heejun Kim, Javed Mostafa, Guilherme Del Fiol
OBJECTIVE: To design alternate information displays that present summaries of clinical trial results to clinicians to support decision-making; and to compare the displays according to efficacy and acceptability. METHODS: A 6-between (information display presentation order) by 3-within (display type) factorial design. Two alternate displays were designed based on Information Foraging theory: a narrative summary that reduces the content to a few sentences; and a table format that structures the display according to the PICO (Population, Intervention, Comparison, Outcome) framework...
January 13, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28089620/the-use-of-information-theory-for-the-evaluation-of-biomarkers-of-aging-and-physiological-age
#4
David Blokh, Ilia Stambler
The present work explores the application of information theoretical measures, such as entropy and normalized mutual information, for research of biomarkers of aging. The use of information theory affords unique methodological advantages for the study of aging processes, as it allows evaluating non-linear relations between biological parameters, providing the precise quantitative strength of those relations, both for individual and multiple parameters, showing cumulative or synergistic effect. Here we illustrate those capabilities utilizing a dataset on heart disease, including diagnostic parameters routinely available to physicians...
January 12, 2017: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/28088845/-%C3%A2-it-shows-that-there-s-no-limits-the-psychological-impact-of-co-production-for-experts-by-experience-working-in-youth-mental-health
#5
Claire Mayer, Karen McKenzie
Co-production is commonly conceptualised as a more equal sharing of power and decision-making between a dichotomy of service user and service provider, each bringing valuable and different assets to the process. 'Experts by experience' lie in the overlap between this conceptually created duality, providing the services they now do by virtue of having once used services themselves. Previous related studies suggest that their involvement in co-production could impact positively on their social capital, self-esteem, self-efficacy and life skills...
January 15, 2017: Health & Social Care in the Community
https://www.readbyqxmd.com/read/28088350/the-emotive-nature-of-conflict-monitoring-in-the-medial-prefrontal-cortex
#6
Blair Saunders, Hause Lin, Marina Milyavskaya, Michael Inzlicht
The detection of conflict between incompatible impulses, thoughts, and actions is a ubiquitous source of motivation across theories of goal-directed action. In this overview, we explore the hypothesis that conflict is emotive, integrating perspectives from affective science and cognitive neuroscience. Initially, we review evidence suggesting that the mental and biological processes that monitor for information processing conflict-particularly those generated by the anterior midcingulate cortex-track the affective significance of conflict and use this signal to motivate increased control...
January 11, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28080093/psychometric-properties-of-the-short-inventory-of-problems-sip-with-adjudicated-dui-intervention-participants
#7
David T Morse, Angela A Robertson
We used responses of two large samples of court-ordered participants from a statewide alcohol/driving safety program to investigate factor structure, score reliability, and criterion-related validity of the Short Inventory of Problems (SIP). Exploratory and confirmatory factor analyses, using both item-level and subscore-level data, support a one-factor structure for the SIP. Internal consistency score reliability estimates were consistent across samples and high enough to warrant use for making decisions about individuals...
January 12, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28078495/economic-context-and-hiv-vulnerability-in-adolescents-and-young-adults-living-in-urban-slums-in-kenya-a-qualitative-analysis-based-on-scarcity-theory
#8
Larissa Jennings, Muthoni Mathai, Sebastian Linnemayr, Antonio Trujillo, Margaret Mak'anyengo, Brooke E E Montgomery, Deanna L Kerrigan
Urban slum adolescents and young adults have disproportionately high rates of HIV compared to rural and non-slum urban youth. Yet, few studies have examined youth's perceptions of the economic drivers of HIV. Informed by traditional and behavioral economics, we applied a scarcity theoretical framework to qualitatively examine how poverty influences sexual risk behaviors among adolescents and young adults. Focus group discussions with one hundred twenty youth in Kenyan's urban slums were transcribed, coded, and analyzed using interpretive phenomenology...
January 11, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28077716/the-attraction-effect-modulates-reward-prediction-errors-and-intertemporal-choices
#9
Sebastian Gluth, Jared M Hotaling, Jörg Rieskamp
: Classical economic theory contends that the utility of a choice option should be independent of other options. This view is challenged by the attraction effect, in which the relative preference between two options is altered by the addition of a third, asymmetrically dominated option. Here, we leveraged the attraction effect in the context of intertemporal choices to test whether both decisions and reward prediction errors (RPE) in the absence of choice violate the independence of irrelevant alternatives principle...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28077685/working-with-what-you-ve-got-unattractive-males-show-greater-mate-guarding-effort-in-a-duetting-songbird
#10
Jenélle Dowling, Michael S Webster
When mates are limited, individuals should allocate resources to mating tactics that maximize fitness. In species with extra-pair paternity (EPP), males can invest in mate guarding, or, alternatively, in seeking EPP. Males should optimize fitness by adjusting investment according to their attractiveness to females, such that attractive males seek EPP, and unattractive males guard mates. This theory has received little empirical testing, leaving our understanding of the evolution of mating tactics incomplete; it is unclear how a male's relative attractiveness influences his tactics...
January 2017: Biology Letters
https://www.readbyqxmd.com/read/28074587/after-the-dnr-surrogates-who-persist-in-requesting-cardiopulmonary-resuscitation
#11
Ellen M Robinson, Wendy Cadge, Angelika A Zollfrank, M Cornelia Cremens, Andrew M Courtwright
Some health care organizations allow physicians to withhold cardiopulmonary resuscitation from a patient, despite patient or surrogate requests that it be provided, when they believe it will be more harmful than beneficial. Such cases usually involve patients with terminal diagnoses whose medical teams argue that aggressive treatments are medically inappropriate or likely to be harmful. Although there is state-to-state variability and a considerable judicial gray area about the conditions and mechanisms for refusals to perform CPR, medical teams typically follow a set of clearly defined procedures for these decisions...
January 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28074586/the-theory-and-practice-of-surrogate-decision-making
#12
David Wendler
When a patient lacks decision-making capacity and has not left a clear advance directive, there is now widespread agreement that patient-designated and next-of-kin surrogates should implement substituted judgment within a process of shared decision-making. Specifically, after discussing the "best scientific evidence available, as well as the patient's values, goals, and preferences" with the patient's clinicians, the patient-designated or next-of-kin surrogate should attempt to determine what decision the patient would have made in the circumstances...
January 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28074578/managing-conflicts-between-physicians-and-surrogates
#13
Carol Bayley
Two articles in this issue of the Hastings Center Report explore two sides of the same problematic coin. In "The Limits of Surrogates' Moral Authority and Physician Professionalism," Jeffrey Berger discusses the moral problem of a surrogate refusing a treatment, palliative sedation, on behalf of a patient whose suffering is refractory to intensive palliative efforts provided by a multidisciplinary team. In "After the DNR: Surrogates Who Persist in Requesting Cardiopulmonary Resuscitation," Ellen Robinson and her colleagues analyze data from a study of cases in which physicians wished not to perform cardiopulmonary resuscitation on patients whom they thought it would harm...
January 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28073327/nonmotor-symptoms-in-parkinson-disease
#14
Rosanna Palmeri, Lo Viviana Buono, Francesco Corallo, Maria Foti, Di Giuseppe Lorenzo, Placido Bramanti, Silvia Marino
Parkinson disease (PD) is a neurodegenerative disorder characterized by motor and nonmotor symptoms. Nonmotor symptoms include cognitive deficits and impairment in emotions recognition ability associated with loss of dopaminergic neurons in the substantia nigra and with alteration in frontostriatal circuits. In this review, we analyzed the studies on social cognition ability in patients with PD. We searched on PubMed and Web of Science databases and screening references of included studied and review articles for additional citations...
January 1, 2017: Journal of Geriatric Psychiatry and Neurology
https://www.readbyqxmd.com/read/28072867/complex-economies-have-a-lateral-escape-from-the-poverty-trap
#15
Emanuele Pugliese, Guido L Chiarotti, Andrea Zaccaria, Luciano Pietronero
We analyze the decisive role played by the complexity of economic systems at the onset of the industrialization process of countries over the past 50 years. Our analysis of the input growth dynamics, considering a further dimension through a recently introduced measure of economic complexity, reveals that more differentiated and more complex economies face a lower barrier (in terms of GDP per capita) when starting the transition towards industrialization. As a consequence, we can extend the classical concept of a one-dimensional poverty trap, by introducing a two-dimensional poverty trap: a country will start the industrialization process if it is rich enough (as in neo-classical economic theories), complex enough (using this new dimension and laterally escaping from the poverty trap), or a linear combination of the two...
2017: PloS One
https://www.readbyqxmd.com/read/28071806/gps-perspectives-on-prescribing-for-older-people-in-primary-care-a-qualitative-study
#16
David O Riordan, Stephen Byrne, Aoife Fleming, Patricia M Kearney, Rose Galvin, Carol Sinnott
AIMS: The aim of this study was firstly to reveal the determinants of GP prescribing behaviour for older adults in primary care and secondly to elicit GPs' views on the potential role for broad intervention strategies involving pharmacists and/or information technology systems in general practice. METHODS: Semi-structured qualitative interviews were carried out with a purposive sample of GPs. Three multidisciplinary researchers independently coded the interview data using a framework approach...
January 10, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28070261/the-effect-of-utilizing-organizational-culture-improvement-model-of-patient-education-on-coronary-artery-bypass-graft-patients-anxiety-and-satisfaction-theory-testing
#17
Mansoureh Ashghali Farahani, Fatemeh Ghaffari, Faezeh Norouzinezhad, Roohangiz Jamshidi Orak
INTRODUCTION: Due to the increasing prevalence of arteriosclerosis and the mortality caused by this disease, Coronary Artery Bypass Graft (CABG) has become one of the most common surgical procedures. Utilization of patient education is approved as an effective solution for increasing patient survival and outcomes of treatment. However, failure to consider different aspects of patient education has turned this goal into an unattainable one. The objective of this research was to determine the effect of utilizing the organizational culture improvement model of patient education on CABG patients' anxiety and satisfaction...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28069027/reliability-of-health-related-quality-of-life-assessments-made-by-older-adults-and-significant-others-for-health-states-of-increasing-cognitive-impairment
#18
Gina Bravo, Modou Sene, Marcel Arcand
BACKGROUND: Older adults are encouraged by many organizations to engage in advance care planning in the event of decisional incapacity. Planning for future health care often involves anticipating health-related quality of life (HRQoL) in states of reduced cognitive functioning. No study has yet examined whether anticipated HRQoL is stable over time. The accuracy with which significant others can predict how an older adult envisions HRQoL in a future state of cognitive impairment is also unknown...
January 7, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28062898/why-vascular-surgeons-and-interventional-radiologists-collaborate-or-compete-a-look-at-endovascular-stent-placements
#19
Eric J Keller, Jeremy D Collins, Megan Crowley-Matoka, Howard B Chrisman, Magdy P Milad, Robert L Vogelzang
PURPOSE: To understand how cultural differences between vascular surgeons (VSs) and interventional radiologists (IRs) affect their clinical decision making and inter-specialty relationships. METHODS: Twenty-four conversational interviews were conducted with IRs and VSs about their approaches to patient care, views of their specialty and others, and solutions to any expressed concerns. Interview transcripts were systematically analyzed to identify and compare key themes according to the constructivist grounded theory and content analysis using NVivo 10 software...
January 6, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28060718/woce-a-framework-for-clustering-ensemble-by-exploiting-the-wisdom-of-crowds-theory
#20
Muhammad Yousefnezhad, Sheng-Jun Huang, Daoqiang Zhang
The wisdom of crowds (WOCs), as a theory in the social science, gets a new paradigm in computer science. The WOC theory explains that the aggregate decision made by a group is often better than those of its individual members if specific conditions are satisfied. This paper presents a novel framework for unsupervised and semisupervised cluster ensemble by exploiting the WOC theory. We employ four conditions in the WOC theory, i.e., diversity, independency, decentralization, and aggregation, to guide both constructing of individual clustering results and final combination for clustering ensemble...
January 4, 2017: IEEE Transactions on Cybernetics
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