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https://www.readbyqxmd.com/read/29144380/a-passive-and-wireless-sensor-for-bone-plate-strain-monitoring
#1
Yisong Tan, Jiale Hu, Limin Ren, Jianhua Zhu, Jiaqi Yang, Di Liu
This paper reports on a sensor for monitoring bone plate strain in real time. The detected bone plate strain could be used for judging the healing state of fractures in patients. The sensor consists of a magnetoelastic material, which can be wirelessly connected and passively embedded. In order to verify the effectiveness of the sensor, a tibia-bone plate-screw (TBS) model was established using the finite element analysis method. A variation of the bone plate strain was obtained via this model. A goat hindquarter tibia was selected as the bone fracture model in the experiment...
November 16, 2017: Sensors
https://www.readbyqxmd.com/read/29143768/an-electronic-system-for-the-contactless-reading-of-ecg-signals
#2
Francesca Romana Parente, Marco Santonico, Alessandro Zompanti, Mario Benassai, Giuseppe Ferri, Arnaldo D'Amico, Giorgio Pennazza
The aim of this work is the development of a contactless capacitive sensory system for the detection of (Electrocardiographic) ECG-like signals. The acquisition approach is based on a capacitive coupling with the patient body performed by electrodes integrated in a front-end circuit. The proposed system is able to detect changes in the electric charge related to the heart activity. Due to the target signal weakness and to the presence of other undesired signals, suitable amplification stages and analogue filters are required...
October 28, 2017: Sensors
https://www.readbyqxmd.com/read/29143701/modelling-interactions-between-farmer-practices-and-fattening-pig-performances-with-an-individual-based-model
#3
A Cadéro, A Aubry, L Brossard, J Y Dourmad, Y Salaün, F Garcia-Launay
European pig production continues to encounter economic and environmental challenges. To address these issues, methods have been developed to assess performances of pig production systems. Recent studies indicate that considering variability in performances among pigs improves the accuracy and reliability of results compared with modelling an average animal. Our objective was to develop a pig fattening unit model able to (i) simulate individual pig performances, including their variability in interaction with farmers' practices and management, and (ii) assess their effects on technical, economic and environmental performances...
November 16, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29142396/antioxidant-and-cholinesterase-inhibitory-activities-of-ethyl-acetate-extract-of-terminalia-chebula-cell-free-in-vitro-and-in-silico-studies
#4
Mohamed Asik Rajmohamed, Suganthy Natarajan, Premkumar Palanisamy, Akbarsha Mohammad Abdulkader, Archunan Govindaraju
Background: Alzheimer's disease (AD) is a progressive neurodegenerative disorder clinically characterized by memory loss and impaired cognitive function. Cholinergic enzyme deficiency and oxidative stress are the two major factors implicated in the pathogenesis of AD. The symptomatic treatment, as of now, is the use of cholinesterase inhibitors toward cholinergic "downturn." Therefore, there is a search for compounds that will be useful in focused therapies. There has been suggestion that Terminalia chebula fruit would be a potential source...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29142029/routine-use-of-quantitative-disease-activity-measurements-among-us-rheumatologists-implications-for-treat-to-target-management-strategies-in-rheumatoid-arthritis
#5
Jeffrey R Curtis, Lang Chen, Maria I Danila, Kenneth G Saag, Kathy L Parham, John J Cush
OBJECTIVE: The aim of our study was to examine why real-world practices and attitudes regarding quantitative measurements of rheumatoid arthritis (RA) have received limited attention. METHODS: An e-mail survey asked US rheumatologists to self-report on their use of quantitative measurements (metric). RESULTS: Among 439 respondents, metric rheumatologists (58%) were more likely to be in group practice and to use tumor necrosis factor inhibitors...
November 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29141735/simulation-performance-and-national-council-licensure-examination-for-registered-nurses-outcomes-field-research-perspectives
#6
Dana E Brackney, Susan Hayes Lane, Tyia Dawson, Angie Koontz
PURPOSE: This descriptive field study examines processes used to evaluate simulation for senior-level Bachelor of Science in Nursing (BSN) students in a capstone course, discusses challenges related to simulation evaluation, and reports the relationship between faculty evaluation of student performance and National Council Licensure Examination for Registered Nurses (NCLEX-RN) first-time passing rates. METHODS: Researchers applied seven terms used to rank BSN student performance (n = 41, female, ages 22-24 years) in a senior-level capstone simulation...
November 1, 2017: Creative Nursing
https://www.readbyqxmd.com/read/29141425/macromolecules-with-amphiphilic-monomer-units-at-interface-of-two-immiscible-liquids
#7
A A Glagoleva, V V Vasilevskaya
The adsorption of macromolecules with amphiphilic monomer units at the liquid-liquid interface was studied. The amphiphilic structure of monomer units with groups selectively interacting with α and β liquids was described by the A-graft-B dumbbell model. The calculations were performed for the symmetrical interaction of A and B groups with liquids, different selectivity parameters ξ and degree of polymerization N. The simulations indicate a three-step adsorption scenario, including non-adsorbed, weak and strong localization states...
November 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29140644/evaluation-of-low-cost-hydrogen-sulfide-monitors-for-use-in-livestock-production
#8
Jessica M Beswick-Honn, Thomas M Peters, T Renée Anthony
Direct-reading gas monitors warn workers of the risk of potentially fatal hydrogen sulfide (H2S) exposures that may arise during manure handling. Low-cost, low-maintenance H2S monitors are available from many manufacturers, but differences in their features and performance make selection challenging for farmers. Moreover, little information is available on the practical maintenance and performance of these devices in agricultural environments. The objective of this study was to provide information to agricultural workers to aid in the selection, maintenance, and use of low-cost H2S monitors...
November 20, 2017: Journal of Agricultural Safety and Health
https://www.readbyqxmd.com/read/29140154/no-difference-in-young-adult-athletes-resting-energy-expenditure-when-measured-under-inpatient-or-outpatient-conditions
#9
Julia L Bone, Louise M Burke
Low energy availability can place athletes at increased risk of injury and illness and can be detected by a low metabolic rate. The lowest metabolic rate is captured at the bedside, after an overnight fast and termed inpatient REE. Measurements done in a laboratory with a shorter overnight fast are termed outpatient REE. Although important to know what the lowest energy expenditure, a bedside measure and/or 12 h fast is not always practical or logistically possible particularly when you take into account an athlete's training schedule...
November 15, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29139207/patient-reported-outcomes-of-slow-single-arc-rotation-do-we-need-rotating-gantries
#10
Brendan Whelan, Miriam Welgampola, Leigh McGarvie, Kuldeep Makhija, Robin M Turner, Lois Holloway, Ilana Feain, Michael Jackson, Michael Barton, Paul Keall
INTRODUCTION: Patient rotation could greatly simplify radiation therapy delivery, with particularly important ramifications for fixed beam treatment with protons, heavy ions, MRI-Linacs, and low cost Linacs. Patient tolerance is often cited as a barrier to widespread implementation to patient rotation; however, no quantitative data addressing this issue exists. In this study, patient reported experiences of slow, single arc rotation in upright (sitting) and lying orientations are reported...
November 15, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29139057/cadaveric-simulation-a-review-of-reviews
#11
REVIEW
M Yiasemidou, E Gkaragkani, D Glassman, C S Biyani
BACKGROUND: Traditional surgical training, largely based on the Halstedian model "see one, do one, teach one" is not as effective in the era of working time restrictions and elaborate shift-patterns. As a result, contemporary surgeons turned to educational methods outside the operating theatre such as simulation. Cadavers are high fidelity models but their use has ethical and cost implications and their availability may be limited. In this review, we explore the role of cadaveric simulation in modern surgical education...
November 14, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29138311/intrusion-and-extrusion-of-water-in-hydrophobic-nanopores
#12
Antonio Tinti, Alberto Giacomello, Yaroslav Grosu, Carlo Massimo Casciola
Heterogeneous systems composed of hydrophobic nanoporous materials and water are capable, depending on their characteristics, of efficiently dissipating (dampers) or storing ("molecular springs") energy. However, it is difficult to predict their properties based on macroscopic theories-classical capillarity for intrusion and classical nucleation theory (CNT) for extrusion-because of the peculiar behavior of water in extreme confinement. Here we use advanced molecular dynamics techniques to shed light on these nonclassical effects, which are often difficult to investigate directly via experiments, owing to the reduced dimensions of the pores...
November 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29138033/randomized-trial-of-high-and-low-fidelity-simulation-to-teach-intrauterine-contraception-placement
#13
Siripanth Nippita, Miriam J Haviland, Sara F Voit, Judith Perez-Peralta, Michele R Hacker, Maureen E Paul
BACKGROUND: High fidelity simulation creates conditions that resemble real circumstances, and can help teach procedures such as intrauterine contraception placement. Its impact on skill retention has not been studied. OBJECTIVE: To evaluate novice learners' skills, attitudes, and knowledge on placement of intrauterine contraception when trained using a high-fidelity commercially available simulator compared with a low-fidelity simulator. STUDY DESIGN: We recruited senior nurse practitioner students and interns in obstetrics and gynecology and family medicine inexperienced with intrauterine contraception placement...
November 11, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29137658/comparison-of-three-different-fixation-constructs-for-radial-neck-fractures-a-biomechanical-study
#14
Hongwei Chen, Dengying Wu, Tianlong Pan, Jun Pan, Rui Zhang, Xuchao Shi
BACKGROUND: Fixation of radial neck fractures can be achieved with a plate and screw construct or with two screws. This study evaluated the biomechanical properties of three different fixation methods following radial neck fractures. METHODS: Twenty-four fourth-generation composite radii were sawed to simulate an unstable radial neck fracture. They were then instrumented with a plate and screw construct or two different orientations (crossed and parallel) of screw fixation...
November 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29137184/cell-type-specific-metabolic-flux-analysis-a-challenge-for-metabolic-phenotyping-and-a-potential-solution-in-plants
#15
Merja T Rossi, Monika Kalde, Chaiyakorn Srisakvarakul, Nicholas J Kruger, R George Ratcliffe
Stable isotope labelling experiments are used routinely in metabolic flux analysis (MFA) to determine the metabolic phenotype of cells and tissues. A complication arises in multicellular systems because single cell measurements of transcriptomes, proteomes and metabolomes in multicellular organisms suggest that the metabolic phenotype will differ between cell types. In silico analysis of simulated metabolite isotopomer datasets shows that cellular heterogeneity confounds conventional MFA because labelling data averaged over multiple cell types does not necessarily yield averaged flux values...
November 13, 2017: Metabolites
https://www.readbyqxmd.com/read/29136493/systems-thinking-and-simulation-modeling-to-inform-childhood-obesity-policy-and-practice
#16
Kenneth E Powell, Debra L Kibbe, Rachel Ferencik, Chris Soderquist, Mary Ann Phillips, Emily Anne Vall, Karen J Minyard
OBJECTIVES: In 2007, 31.7% of Georgia adolescents in grades 9-12 were overweight or obese. Understanding the impact of policies and interventions on obesity prevalence among young people can help determine statewide public health and policy strategies. This article describes a systems model, originally launched in 2008 and updated in 2014, that simulates the impact of policy interventions on the prevalence of childhood obesity in Georgia through 2034. METHODS: In 2008, using information from peer-reviewed reports and quantitative estimates by experts in childhood obesity, physical activity, nutrition, and health economics and policy, a group of legislators, legislative staff members, and experts trained in systems thinking and system dynamics modeling constructed a model simulating the impact of policy interventions on the prevalence of childhood obesity in Georgia through 2034...
November 2017: Public Health Reports
https://www.readbyqxmd.com/read/29136211/p3-phylogenetic-posterior-prediction-in-revbayes
#17
Sebastian Höhna, Lyndon M Coghill, Genevieve G Mount, Robert C Thomson, Jeremy M Brown
Tests of absolute model fit are crucial in model-based inference because poorly structured models can lead to biased parameter estimates. In Bayesian inference, posterior predictive simulations can be used to test absolute model fit. However such tests have not been commonly practiced in phylogenetic inference due to a lack of convenient and flexible software. Here we describe our newly implemented tests of model fit using posterior predictive testing, based on both data- and inference-based test statistics, in the phylogenetics software RevBayes...
November 10, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29135848/using-simulation-to-hardwire-bedside-shift-report
#18
Arvis K Connolly
Numerous attempts to move nursing handoff to the bedside failed within our organization. Upon retrospect, previous attempts lacked standardization, coordination, and clear expectations. With emphasis on implementing patient- and family-centered care to increase patient experience scores, we developed a standardized staff training methodology using didactic and simulation to address staff barriers to adoption, a standardized implementation process, and a process to hardwire the practice.
December 2017: Journal of Nursing Administration
https://www.readbyqxmd.com/read/29135750/student-and-educator-experiences-of-maternal-child-simulation-based-learning-a-systematic-review-of-qualitative-evidence
#19
Karen MacKinnon, Lenora Marcellus, Julie Rivers, Carol Gordon, Maureen Ryan, Diane Butcher
BACKGROUND: Although maternal-child care is a pillar of primary health care, there is a global shortage of maternal-child health care providers. Nurse educators experience difficulties providing undergraduate students with maternal-child learning experiences for a number of reasons. Simulation has the potential to complement learning in clinical and classroom settings. Although systematic reviews of simulation are available, no systematic reviews of qualitative evidence related to maternal-child simulation-based learning (SBL) for undergraduate nursing students and/or educators have been located...
November 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29135742/the-effect-of-high-fidelity-simulated-learning-methods-on-physiotherapy-pre-registration-education-a-systematic-review-protocol
#20
Fiona Roberts, Kay Cooper
The objective of this review is to identify if high fidelity simulated learning methods are effective in enhancing clinical/practical skills compared to usual, low fidelity simulated learning methods in pre-registration physiotherapy education.
November 2017: JBI Database of Systematic Reviews and Implementation Reports
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