keyword
MENU ▼
Read by QxMD icon Read
search

Health simulation

keyword
https://www.readbyqxmd.com/read/29781983/effective-analysis-of-human-exposure-conditions-with-body-worn-dosimeters-in-the-2-4-ghz-band
#1
Silvia de Miguel-Bilbao, Juan Blas, Victoria Ramos
A well-defined experimental procedure is put forward to evaluate maximum exposure conditions in a worst-case scenario whilst avoiding the uncertainties caused by the use of personal exposimeters (PEMs) as measuring devices: the body shadow effect (BSE), the limited sensitivity range, and the non-identification of the radiation source. An upper bound for exposure levels to EMF in several indoor enclosures has been measured and simulated. The frequency used for the study is 2.4 GHz, as it is the most commonly used band in indoor communications...
May 2, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29780976/modeling-individual-cyclic-variation-in-human-behavior
#2
Emma Pierson, Tim Althoff, Jure Leskovec
Cycles are fundamental to human health and behavior. Examples include mood cycles, circadian rhythms, and the menstrual cycle. However, modeling cycles in time series data is challenging because in most cases the cycles are not labeled or directly observed and need to be inferred from multidimensional measurements taken over time. Here, we present Cyclic Hidden Markov Models (CyH-MMs) for detecting and modeling cycles in a collection of multidimensional heterogeneous time series data. In contrast to previous cycle modeling methods, CyHMMs deal with a number of challenges encountered in modeling real-world cycles: they can model multivariate data with both discrete and continuous dimensions; they explicitly model and are robust to missing data; and they can share information across individuals to accommodate variation both within and between individual time series...
April 2018: Proceedings of the International World-Wide Web Conference
https://www.readbyqxmd.com/read/29780789/a-fundamentals-train-the-trainer-approach-to-building-pediatric-critical-care-expertise-in-the-developing-world
#3
Sheri S Crow, Beth A Ballinger, Mariela Rivera, David Tsibadze, Nino Gakhokidze, Nino Zavrashvili, Matthew J Ritter, Grace M Arteaga
Pediatric Fundamental Critical Care Support (PFCCS) is an educational tool for training non-intensivists, nurses, and critical care practitioners in diverse health-care settings to deal with the acute deterioration of pediatric patients. Our objective was to evaluate the PFCCS course as a tool for developing a uniform, reproducible, and sustainable model for educating local health-care workers in the optimal management of critically ill children in the Republic of Georgia. Over a period of 18 months and four visits to the country, we worked with Georgian pediatric critical care leadership to complete the following tasks: (1) survey health-care needs within the Republic of Georgia, (2) present representative PFCCS lectures and simulation scenarios to evaluate interest and obtain "buy-in" from key stakeholders throughout the Georgian educational infrastructure, and (3) identify PFCCS instructor candidates...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29780431/mathematical-modelling-of-bacterial-meningitis-transmission-dynamics-with-control-measures
#4
Joshua Kiddy K Asamoah, Farai Nyabadza, Baba Seidu, Mehar Chand, Hemen Dutta
Vaccination and treatment are the most effective ways of controlling the transmission of most infectious diseases. While vaccination helps susceptible individuals to build either a long-term immunity or short-term immunity, treatment reduces the number of disease-induced deaths and the number of infectious individuals in a community/nation. In this paper, a nonlinear deterministic model with time-dependent controls has been proposed to describe the dynamics of bacterial meningitis in a population. The model is shown to exhibit a unique globally asymptotically stable disease-free equilibrium ℰ 0 , when the effective reproduction number ℛ VT ≤ 1, and a globally asymptotically stable endemic equilibrium ℰ 1 , when ℛ VT > 1; and it exhibits a transcritical bifurcation at ℛ VT = 1...
2018: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/29778266/estimation-of-hepatitis-c-disease-burden-and-budget-impact-of-treatment-using-health-economic-modeling
#5
REVIEW
Jagpreet Chhatwal, Qiushi Chen, Rakesh Aggarwal
Oral direct-acting antiviral agents have revolutionized treatment of hepatitis C virus (HCV) infection. Nonetheless, barriers exist to elimination of HCV as a public health threat including low uptake of treatment, limited budget allocations for HCV treatment, and low awareness rates of HCV status among infected people. Mathematical modeling provides a systematic framework to analyze and compare potential solutions and elimination strategies by simulating the HCV epidemic under different conditions. Such models evaluate impact of interventions in advance of implementation...
June 2018: Infectious Disease Clinics of North America
https://www.readbyqxmd.com/read/29777308/theoretical-analysis-of-evaporative-cooling-of-classic-heat-stroke-patients
#6
Abdulaziz H Alzeer, E H Wissler
Heat stroke is a serious health concern globally, which is associated with high mortality. Newer treatments must be designed to improve outcomes. The aim of this study is to evaluate the effect of variations in ambient temperature and wind speed on the rate of cooling in a simulated heat stroke subject using the dynamic model of Wissler. We assume that a 60-year-old 70-kg female suffers classic heat stroke after walking fully exposed to the sun for 4 h while the ambient temperature is 40 °C, relative humidity is 20%, and wind speed is 2...
May 18, 2018: International Journal of Biometeorology
https://www.readbyqxmd.com/read/29776841/-medical-simulation-as-a-tool-in-the-training-of-perinatal-professionals
#7
B Tosello, J Blanc, C Kelway, V Pellegrin, E Quarello, F Comte, C Zakarian, C D'Ercole
Though technology plays an increasingly important role in modern health systems, human performance remains a major determinant of safety, effectiveness and efficiency of patient care. This is especially true in the delivery room. Thus, the training of professionals must aim not only for the acquisition of theory and practical skills on an individual basis, but also for the learning of teamwork systematically. Training health professionals with simulation enhances their theoretical knowledge and meets formal requirements in literacy, technical skills and communication...
May 15, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29775648/towards-a-quantitative-model-to-predict-the-toxicity-pathogenicity-potential-of-mineral-fibers
#8
Alessandro F Gualtieri
A number of mineral fibers represent a health hazard because they are classified as cancer-causing chemical/physical toxicants upon (chronic) dust inhalation. Although in the last decades they have been the subject of intensive multidisciplinary investigations, the mechanisms by which mineral fibers induce toxic and pathogenic adverse effects on human health and environment are not yet fully understood. The major intricacy of the biological approach that prevents the design of a conclusive shared model of behavior of mineral fibers in a biological system stems from their very nature with intrinsic variability in chemical, molecular, structural and morphometric parameters, biodurability and surface reactivity...
May 15, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29774571/clustering-and-variable-selection-in-the-presence-of-mixed-variable-types-and-missing-data
#9
C B Storlie, S M Myers, S K Katusic, A L Weaver, R G Voigt, P E Croarkin, R E Stoeckel, J D Port
We consider the problem of model-based clustering in the presence of many correlated, mixed continuous, and discrete variables, some of which may have missing values. Discrete variables are treated with a latent continuous variable approach, and the Dirichlet process is used to construct a mixture model with an unknown number of components. Variable selection is also performed to identify the variables that are most influential for determining cluster membership. The work is motivated by the need to cluster patients thought to potentially have autism spectrum disorder on the basis of many cognitive and/or behavioral test scores...
May 17, 2018: Statistics in Medicine
https://www.readbyqxmd.com/read/29774298/cystic-echinococcosis-in-marketed-offal-of-sheep-in-basrah-iraq-abattoir-based-survey-and-a-probabilistic-model-estimation-of-the-direct-economic-losses-due-to-hydatid-cyst
#10
Mohanad F Abdulhameed, Ihab Habib, Suzan A Al-Azizz, Ian Robertson
Cystic echinococcosis (CE) is a highly endemic parasitic zoonosis in Iraq with substantial impacts on livestock productivity and human health. The objectives of this study were to study the abattoir-based occurrence of CE in marketed offal of sheep in Basrah province, Iraq, and to estimate, using a probabilistic modelling approach, the direct economic losses due to hydatid cysts. Based on detailed visual meat inspection, results from an active abattoir survey in this study revealed detection of hydatid cysts in 7...
February 2018: Parasite Epidemiology and Control
https://www.readbyqxmd.com/read/29772688/modeling-the-population-health-impact-of-introducing-a-modified-risk-tobacco-product-into-the-u-s-market
#11
Smilja Djurdjevic, Peter N Lee, Rolf Weitkunat, Zheng Sponsiello-Wang, Frank Lüdicke, Gizelle Baker
Philip Morris International (PMI) has developed the Population Health Impact Model (PHIM) to quantify, in the absence of epidemiological data, the effects of marketing a candidate modified risk tobacco product (cMRTP) on the public health of a whole population. Various simulations were performed to understand the harm reduction impact on the U.S. population over a 20-year period under various scenarios. The overall reduction in smoking attributable deaths (SAD) over the 20-year period was estimated as 934,947 if smoking completely went away and between 516,944 and 780,433 if cMRTP use completely replaces smoking...
May 16, 2018: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/29772472/postintroduction-study-of-cost-effectiveness-of-pneumococcal-vaccine-pcv10-from-public-sector-payer-s-perspective-in-the-state-of-santa-catarina-brazil
#12
Emil Kupek, Ilse Viertel
OBJECTIVES: To evaluate cost effectiveness of 10-valent pneumococcal conjugate vaccine in the routine immunization program for children younger than 5 years in Brazil by a postintroduction study. METHODS: Ecological study of prevaccine (2006-2009) versus postvaccine (2011-2014) period related the changes in mortality rate and hospitalization rate to direct cost of pneumonia treatment from the payer's perspective to estimate the cost effectiveness regarding lives saved, life-years gained, and disability-adjusted life-year for children younger than 5 years in the southern Brazilian state of Santa Catarina...
May 14, 2018: Value in Health Regional Issues
https://www.readbyqxmd.com/read/29771814/using-technology-to-enhance-teaching-of-patient-centered-interviewing-for-early-medical-students
#13
Stacey Kaltman, Nicholas Talisman, Susan Pennestri, Eleri Syverson, Paige Arthur, Yianna Vovides
INTRODUCTION: Effective strategies for teaching communication skills to health professions students are needed. This article describes the design and evaluation of immersive and interactive video simulations for medical students to practice basic communication skills. METHODS: Three simulations were developed, focusing on patient-centered interviewing techniques such as using open-ended questions, reflections, and empathic responses while assessing a patient's history of present illness...
May 15, 2018: Simulation in Healthcare: Journal of the Society for Simulation in Healthcare
https://www.readbyqxmd.com/read/29771693/use-of-patient-simulators-to-characterize-the-repeatability-and-reproducibility-of-automated-oscillometric-blood-pressure-monitors
#14
Elmiloudi M Sarhrani, Thomas B Gilmore, Andre S Lamontagne, Lauren B Harris, Jay S Kellett, Michael P Sweeney, Teresa I Navas, Oleg Vesnovsky, Charles Ho, Luke H Herbertson
OBJECTIVES: Automated oscillometric blood pressure (BP) monitors can be critical health assessment tools if they are accurate and can provide repeatable and reproducible readings. Commercial patient simulators are capable of screening for poorly performing oscillometric BP monitors. A valid screening bench test method to identify unreliable and underperforming BP monitors could advance surveillance of these devices and support regulatory decision making. METHODS: Two simulators were used to characterize a total of 19 legally marketed upper arm, wrist, hospital-grade, and public-use BP monitors...
May 16, 2018: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/29771338/cost-effectiveness-analysis-of-an-adherence-promotion-intervention-for-children-with-leukemia-a-markov-model-based-simulation
#15
Meghan E McGrady, Mark H Eckman, Maureen M O'Brien, Ahna L H Pai
Objective: Improving medication adherence among children with B-cell precursor acute lymphoblastic leukemia (B-ALL) has the potential to reduce relapse rates but requires an investment in resources. An economic evaluation is needed to understand the potential costs and benefits of delivering adherence-promotion interventions (APIs) as part of standard clinical care. Methods: A Markov decision analytic model was used to simulate the potential incremental cost-effectiveness per quality-adjusted life year (QALY) to be gained from an API for children with B-ALL in first continuous remission compared with treatment as usual (TAU, no intervention)...
May 15, 2018: Journal of Pediatric Psychology
https://www.readbyqxmd.com/read/29770484/inter-method-reproducibility-of-biexponential-r-2-mr-relaxometry-for-estimation-of-liver-iron-concentration
#16
Ali Pirasteh, Qing Yuan, Diego Hernando, Scott B Reeder, Ivan Pedrosa, Takeshi Yokoo
PURPOSE: To assess the reproducibility of biexponential R2 -relaxometry MRI for estimation of liver iron concentration (LIC) between proprietary and nonproprietary analysis methods. METHODS: This single-center retrospective study, approved by investigational review board and compliant with the Health Insurance Portability and Accountability Act, included 40 liver MRI exams in 38 subjects with suspected or known iron overload. From spin-echo images of the liver, acquired at 5 different echo times (TE = 6-18 ms), biexponential R2 maps were calculated using 1 proprietary (FerriScan, Resonance Health Ltd...
May 16, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29770445/cost-effectiveness-of-a-community-based-diabetes-prevention-program-with-participation-incentives-for-medicaid-beneficiaries
#17
Todd Gilmer, Patrick J O'Connor, Jeffrey S Schiff, Gretchen Taylor, Gabriela Vazquez-Benitez, Joyce E Garrett, Houa Vue-Her, Sarah Rinn, Julie Anderson, Jay Desai
OBJECTIVE: To examine the cost-effectiveness of a community-based Diabetes Prevention Program (DPP) for Medicaid beneficiaries from the perspective of the health care sector. DATA SOURCES/STUDY SETTING: A total of 847 Medicaid enrollees at high risk for type 2 diabetes participating in a community-based DPP. STUDY DESIGN: Pre- and post clinical outcome and cost data were used as inputs into a validated diabetes simulation model. The model was used to evaluate quality-adjusted life years (QALYs) and health care costs over a 40-year time horizon from the perspective of the health care sector...
May 16, 2018: Health Services Research
https://www.readbyqxmd.com/read/29770443/the-impact-of-policy-incentives-on-long-term-care-insurance-and-medicaid-costs-does-underwriting-matter
#18
Portia Y Cornell, David C Grabwoski
OBJECTIVE: To test whether underwriting modifies the effect of state-based incentives on individuals' purchase of long-term care insurance. DATA SOURCE: Health and Retirement Study (HRS), 1996-2012. STUDY DESIGN: We estimated difference-in-difference regression models with an interaction of state policy indicators with individuals' probabilities of being approved for long-term care insurance. DATA EXTRACTION: We imputed probabilities of underwriting approval for respondents in the HRS using a model developed with underwriting decisions from two U...
May 16, 2018: Health Services Research
https://www.readbyqxmd.com/read/29768667/analyzing-self-controlled-case-series-data-when-case-confirmation-rates-are-estimated-from-an-internal-validation-sample
#19
Stanley Xu, Christina L Clarke, Sophia R Newcomer, Matthew F Daley, Jason M Glanz
Vaccine safety studies are often electronic health record (EHR)-based observational studies. These studies often face significant methodological challenges, including confounding and misclassification of adverse event. Vaccine safety researchers use self-controlled case series (SCCS) study design to handle confounding effect and employ medical chart review to ascertain cases that are identified using EHR data. However, for common adverse events, limited resources often make it impossible to adjudicate all adverse events observed in electronic data...
May 16, 2018: Biometrical Journal. Biometrische Zeitschrift
https://www.readbyqxmd.com/read/29768416/poverty-dynamics-poverty-thresholds-and-mortality-an-age-stage-markovian-model
#20
Shayna Fae Bernstein, David Rehkopf, Shripad Tuljapurkar, Carol C Horvitz
Recent studies have examined the risk of poverty throughout the life course, but few have considered how transitioning in and out of poverty shape the dynamic heterogeneity and mortality disparities of a cohort at each age. Here we use state-by-age modeling to capture individual heterogeneity in crossing one of three different poverty thresholds (defined as 1×, 2× or 3× the "official" poverty threshold) at each age. We examine age-specific state structure, the remaining life expectancy, its variance, and cohort simulations for those above and below each threshold...
2018: PloS One
keyword
keyword
34051
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"