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https://www.readbyqxmd.com/read/28647895/systematic-design-for-trait-introgression-projects
#1
John N Cameron, Ye Han, Lizhi Wang, William D Beavis
Using an Operations Research approach, we demonstrate design of optimal trait introgression projects with respect to competing objectives. We demonstrate an innovative approach for designing Trait Introgression (TI) projects based on optimization principles from Operations Research. If the designs of TI projects are based on clear and measurable objectives, they can be translated into mathematical models with decision variables and constraints that can be translated into Pareto optimality plots associated with any arbitrary selection strategy...
June 24, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28647843/alarming-increase-in-the-registration-of-degenerative-rotator-cuff-related-lesions-a-nationwide-epidemiological-study-investigating-244-519-patients
#2
Nina Monrad, Ann Ganestam, Thomas Kallemose, Kristoffer Weisskirchner Barfod
PURPOSE AND HYPOTHESIS: Shoulder lesions are common and a challenge to diagnose. They often result in significant disability for the patient and are an economic burden to society. From recent studies, an increasing incidence has been reported. The purpose of this study was to investigate and map the incidence of shoulder lesions in Denmark from 1996 to 2013 with focus on sex, age and geographical area. METHODS: The Danish National Patient Registry was searched retrospectively to find the number of shoulder lesions in Denmark during the period 1996-2013...
June 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28647724/observed-and-projected-trends-in-paediatric-health-resources-and-services-in-china-between-2003-and-2030-a-time-series-study
#3
Xin-Yu Zhang, Ying Gao, Chang-Ping Li, Rong-Xiu Zheng, Jie-Li Chen, Lin Zhao, You-Fa Wang, Yao-Gang Wang
OBJECTIVES: The two-child policy took effect in China on 1 January 2016, thus officially ending the one-child policy. The resultant growth in the population will create a considerable demand for public services such as paediatric healthcare, even while there are limited paediatric resources. We estimated the relationship between paediatric health resources and services and child mortality to determine the degree of the deficiency of such resources in China. Projecting the quantity of paediatric health resource allocation and service supply through 2030 will help provide data reference for future policy decision making...
June 24, 2017: BMJ Open
https://www.readbyqxmd.com/read/28647393/the-effect-and-use-of-milestones-in-the-assessment-of-neurological-surgery-residents-and-residency-programs
#4
Lisa N Conforti, Nicholas A Yaghmour, Stanley J Hamstra, Eric S Holmboe, Benjamin Kennedy, Jesse J Liu, Heidi Waldo, Nathan R Selden
OBJECTIVES: The purpose of this study was to determine the effect of the Accreditation Council for Graduate Medical Education Milestones on the assessment of neurological surgery residents. The authors sought to determine the feasibility, acceptability, and utility of this new framework in making judgments of progressive competence, its implementation within programs, and the influence on curricula. Residents were also surveyed to elicit the effect of Milestones on their educational experience and professional development...
June 21, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28647228/chloramine-demand-estimation-using-surrogate-chemical-and-microbiological-parameters
#5
Sina Moradi, Sanly Liu, Christopher W K Chow, John van Leeuwen, David Cook, Mary Drikas, Rose Amal
A model is developed to enable estimation of chloramine demand in full scale drinking water supplies based on chemical and microbiological factors that affect chloramine decay rate via nonlinear regression analysis method. The model is based on organic character (specific ultraviolet absorbance (SUVA)) of the water samples and a laboratory measure of the microbiological (Fm) decay of chloramine. The applicability of the model for estimation of chloramine residual (and hence chloramine demand) was tested on several waters from different water treatment plants in Australia through statistical test analysis between the experimental and predicted data...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28646775/consequences-of-intensive-forest-harvesting-on-the-recovery-of-swedish-lakes-from-acidification-and-on-critical-load-exceedances
#6
Filip Moldan, Johanna Stadmark, Jens Fölster, Sara Jutterström, Martyn N Futter, Bernard J Cosby, Richard F Wright
Across much of the northern hemisphere, lakes are at risk of re-acidification due to incomplete recovery from historical acidification and pressures associated with more intensive forest biomass harvesting. Critical load (CL) calculations aimed at estimating the amount of pollutants an ecosystem can receive without suffering adverse consequences are dependent on these factors. Here, we present a modelling study of the potential effects of intensified forest harvesting on re-acidification of a set of 3239 Swedish lakes based on scenarios with varying intensities of forest biomass harvest and acid deposition...
June 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28646751/an-attentional-drift-diffusion-model-over-binary-attribute-choice
#7
Geoffrey Fisher
In order to make good decisions, individuals need to identify and properly integrate information about various attributes associated with a choice. Since choices are often complex and made rapidly, they are typically affected by contextual variables that are thought to influence how much attention is paid to different attributes. I propose a modification of the attentional drift-diffusion model, the binary-attribute attentional drift diffusion model (baDDM), which describes the choice process over simple binary-attribute choices and how it is affected by fluctuations in visual attention...
June 21, 2017: Cognition
https://www.readbyqxmd.com/read/28646591/morphological-characteristics-and-hpv-genotype-predict-the-treatment-response-in-cutaneous-warts
#8
G K Hogendoorn, S C Bruggink, M N C de Koning, J A H Eekhof, K E Hermans, R Rissmann, J Burggraaf, R Wolterbeek, K D Quint, S T P Kouwenhoven, J N B Bavinck
BACKGROUND: Cutaneous warts have a cure rate after therapy of no more than approximately 50%. Recently, we developed and validated a standard assessment tool for warts (CWARTS) based on phenotypical characteristics. OBJECTIVES: To assess whether patient and morphological wart characteristics predict the HPV type in the specific wart and whether these characteristics as well as the HPV type predict a favourable treatment response. METHODS: Photographs were used to score 9 morphological wart characteristics using the newly developed CWARTS tool...
June 24, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28646349/modeling-pain-using-fmri-from-regions-to-biomarkers
#9
REVIEW
Marianne C Reddan, Tor D Wager
Pain is a subjective and complex phenomenon. Its complexity is related to its heterogeneity: multiple component processes, including sensation, affect, and cognition, contribute to pain experience and reporting. These components are likely to be encoded in distributed brain networks that interact to create pain experience and pain-related decision-making. Therefore, to understand pain, we must identify these networks and build models of these interactions that yield testable predictions about pain-related outcomes...
June 23, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28645969/protocol-for-the-residents-in-action-pilot-cluster-randomised-controlled-trial-riat-evaluating-a-behaviour-change-intervention-to-promote-walking-reduce-sitting-and-improve-mental-health-in-physically-inactive-older-adults-in-retirement-villages
#10
Cecilie Thøgersen-Ntoumani, Ashlene Wright, Eleanor Quested, Elissa Burton, Keith D Hill, Ester Cerin, Stuart J H Biddle, Nikos Ntoumanis
INTRODUCTION: Ageing is accompanied by increased risks of chronic disease, declined functioning and increased dependency. Physical activity is critical to retaining health and independence, but the majority of older people are insufficiently physically active to achieve these benefits and have high levels of sedentary (sitting) time. Activity programmes are often offered in retirement villages; however, their uptake is limited. Furthermore, although the physical environment in and around these villages can play an important role in decisions to be physically active, its role is often overlooked by research in these settings...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28645954/assessing-the-impact-of-colonoscopy-complications-on-use-of-colonoscopy-among-primary-care-physicians-and-other-connected-physicians-an-observational-study-of-older-americans
#11
Nancy L Keating, A James O'Malley, Jukka-Pekka Onnela, Bruce E Landon
OBJECTIVES: Psychological biases can distort treatment decision-making. The availability heuristic is one such bias, wherein events that are recent, vivid or easily imagined are readily 'available' to memory and are therefore judged more likely to occur than expected based on epidemiological data. We assessed if the occurrence of a serious colonoscopy complication for a primary care physician's patient influenced colonoscopy rates for the physician's other patients. DESIGN: Longitudinal study with time-varying exposure variables...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28645948/the-relationship-between-bicycle-commuting-and-perceived-stress-a-cross-sectional-study
#12
Ione Avila-Palencia, Audrey de Nazelle, Tom Cole-Hunter, David Donaire-Gonzalez, Michael Jerrett, Daniel A Rodriguez, Mark J Nieuwenhuijsen
INTRODUCTION: Active commuting - walking and bicycling for travel to and/or from work or educational addresses - may facilitate daily, routine physical activity. Several studies have investigated the relationship between active commuting and commuting stress; however, there are no studies examining the relationship between solely bicycle commuting and perceived stress, or studies that account for environmental determinants of bicycle commuting and stress. The current study evaluated the relationship between bicycle commuting, among working or studying adults in a dense urban setting, and perceived stress...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28645849/thermal-management-in-closed-incubators-new-software-for-assessing-the-impact-of-humidity-on-the-optimal-incubator-air-temperature
#13
Stéphane Delanaud, Pauline Decima, Amandine Pelletier, Jean-Pierre Libert, Estelle Durand, Erwan Stephan-Blanchard, Véronique Bach, Pierre Tourneux
BACKGROUND: Low-birth-weight (LBW) neonates are nursed in closed incubators to prevent transcutaneous water loss. The RH's impact on the optimal incubator air temperature setting has not been studied. METHODS: On the basis of a clinical cohort study, we modelled all the ambient parameters influencing body heat losses and gains. The algorithm quantifies the change in RH on the air temperature, to maintain optimal thermal conditions in the incubator. RESULTS: Twenty-three neonates (gestational age (GA): 30...
June 20, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28645841/how-do-self-interest-and-other-need-interact-in-the-brain-to-determine-altruistic-behavior
#14
Jie Hu, Yue Li, Yunlu Yin, Philip R Blue, Hongbo Yu, Xiaolin Zhou
Altruistic behavior, i.e., promoting the welfare of others at a cost to oneself, is subserved by the integration of various social, affective, and economic factors represented in extensive brain regions. However, it is unclear how different regions interact to process/integrate information regarding the helper's interest and recipient's need when deciding whether to behave altruistically. Here we combined an interactive game with functional Magnetic Resonance Imaging (fMRI) and transcranial direct current stimulation (tDCS) to characterize the neural network underlying the processing/integration of self-interest and other-need...
June 20, 2017: NeuroImage
https://www.readbyqxmd.com/read/28645446/cost-effectiveness-analysis-of-two-treatment-strategies-for-chronic-hepatitis-c-before-and-after-access-to-direct-acting-antivirals-in-spain
#15
Juan Turnes, Raquel Domínguez-Hernández, Miguel Ángel Casado
OBJECTIVE: To evaluate the cost-effectiveness of a strategy based on direct-acting antivirals (DAAs) following the marketing of simeprevir and sofosbuvir (post-DAA) versus a pre-direct-acting antiviral strategy (pre-DAA) in patients with chronic hepatitis C, from the perspective of the Spanish National Health System. METHODS: A decision tree combined with a Markov model was used to estimate the direct health costs (€, 2016) and health outcomes (quality-adjusted life years, QALYs) throughout the patient's life, with an annual discount rate of 3%...
June 20, 2017: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/28645319/architectural-frameworks-defining-the-structures-for-implementing-learning-health-systems
#16
Lysanne Lessard, Wojtek Michalowski, Michael Fung-Kee-Fung, Lori Jones, Agnes Grudniewicz
BACKGROUND: The vision of transforming health systems into learning health systems (LHSs) that rapidly and continuously transform knowledge into improved health outcomes at lower cost is generating increased interest in government agencies, health organizations, and health research communities. While existing initiatives demonstrate that different approaches can succeed in making the LHS vision a reality, they are too varied in their goals, focus, and scale to be reproduced without undue effort...
June 23, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28644835/physician-assessments-of-drug-seeking-behavior-a-mixed-methods-study
#17
Michael A Fischer, John B McKinlay, Jeffrey N Katz, Eric Gerstenberger, Felicia Trachtenberg, Lisa D Marceau, Lisa C Welch
BACKGROUND: Pain complaints are common, but clinicians are increasingly concerned about overuse of opioid pain medications. This may lead patients with actual pain to be stigmatized as "drug-seeking," or attempting to obtain medications they do not require medically. We assessed whether patient requests for specific opioid pain medication would lead physicians to classify them as drug-seeking and change management decisions. METHODS AND FINDINGS: Mixed-methods analysis of interviews with 192 office-based primary care physicians after viewing video vignettes depicting patients presenting with back pain...
2017: PloS One
https://www.readbyqxmd.com/read/28644786/antecedents-and-consequences-of-medical-students-moral-decision-making-during-professionalism-dilemmas
#18
Lynn Monrouxe, Malissa Shaw, Charlotte Rees
Medical students often experience professionalism dilemmas (which differ from ethical dilemmas) wherein students sometimes witness and/or participate in patient safety, dignity, and consent lapses. When faced with such dilemmas, students make moral decisions. If students' action (or inaction) runs counter to their perceived moral values-often due to organizational constraints or power hierarchies-they can suffer moral distress, burnout, or a desire to leave the profession. If moral transgressions are rationalized as being for the greater good, moral distress can decrease as dilemmas are experienced more frequently (habituation); if no learner benefit is seen, distress can increase with greater exposure to dilemmas (disturbance)...
June 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28644772/risk-stratification-for-second-primary-lung-cancer
#19
Summer S Han, Gabriel A Rivera, Martin C Tammemägi, Sylvia K Plevritis, Scarlett L Gomez, Iona Cheng, Heather A Wakelee
Purpose This study estimated the 10-year risk of developing second primary lung cancer (SPLC) among survivors of initial primary lung cancer (IPLC) and evaluated the clinical utility of the risk prediction model for selecting eligibility criteria for screening. Methods SEER data were used to identify a population-based cohort of 20,032 participants diagnosed with IPLC between 1988 and 2003 and who survived ≥ 5 years after the initial diagnosis. We used a proportional subdistribution hazards model to estimate the 10-year risk of developing SPLC among survivors of lung cancer LC in the presence of competing risks...
June 23, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28643629/faecal-immunochemical-tests-to-triage-patients-with-lower-abdominal-symptoms-for-suspected-colorectal-cancer-referrals-in-primary-care-a-systematic-review-and-cost-effectiveness-analysis
#20
Marie Westwood, Isaac Corro Ramos, Shona Lang, Marianne Luyendijk, Remziye Zaim, Lisa Stirk, Maiwenn Al, Nigel Armstrong, Jos Kleijnen
BACKGROUND: Colorectal cancer (CRC) is the third most common cancer in the UK. Presenting symptoms that can be associated with CRC usually have another explanation. Faecal immunochemical tests (FITs) detect blood that is not visible to the naked eye and may help to select patients who are likely to benefit from further investigation. OBJECTIVES: To assess the effectiveness of FITs [OC-Sensor (Eiken Chemical Co./MAST Diagnostics, Tokyo, Japan), HM-JACKarc (Kyowa Medex/Alpha Laboratories Ltd, Tokyo, Japan), FOB Gold (Sentinel/Sysmex, Sentinel Diagnostics, Milan, Italy), RIDASCREEN Hb or RIDASCREEN Hb/Hp complex (R-Biopharm, Darmstadt, Germany)] for primary care triage of people with low-risk symptoms...
May 2017: Health Technology Assessment: HTA
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