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https://www.readbyqxmd.com/read/29342366/evaluation-of-the-get-active-questionnaire-in-community-dwelling-older-adults
#1
Andrea F M Petrella, Dawn P Gill, Robert J Petrella
BACKGROUND: Physical activity screening prior to starting a physical activity program is important to identify if there are any underlying health conditions. However, many older adults do not complete such assessments prior to beginning their physical activity program. This project compared the Canadian Society for Exercise Physiology's newly developed Get Active Questionnaire (GAQ) to a standardized exercise stress test in terms of screening out versus screening in false positive GAQ tests...
January 17, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29342302/determination-of-the-appropriate-physical-density-of-internal-metallic-ports-in-temporary-tissue-expanders-for-the-treatment-planning-of-post-mastectomy-radiation-therapy
#2
Norifumi Mizuno, Haruna Takahashi, Jiro Kawamori, Naoki Nakamura, Mami Ogita, Shogo Hatanaka, Ryouhei Yamauchi, Masatsugu Hariu, Kenji Sekiguchi
Some patients undergoing breast reconstruction require post-mastectomy radiation therapy, but the metallic ports used in temporary tissue expanders attenuate the X-rays. In this study, we evaluated by the film method, the attenuation of 4 MV and 6 MV X-rays after passing through a metallic port, with the aim of identifying a useful method for determining the appropriate density to use in the radiation treatment planning system (RTPS), taking into account the distance between the metallic port and the targets...
January 12, 2018: Journal of Radiation Research
https://www.readbyqxmd.com/read/29342271/melodi-mining-enriched-literature-objects-to-derive-intermediates
#3
Benjamin Elsworth, Karen Dawe, Emma E Vincent, Ryan Langdon, Brigid M Lynch, Richard M Martin, Caroline Relton, Julian P T Higgins, Tom R Gaunt
Background: The scientific literature contains a wealth of information from different fields on potential disease mechanisms. However, identifying and prioritizing mechanisms for further analytical evaluation presents enormous challenges in terms of the quantity and diversity of published research. The application of data mining approaches to the literature offers the potential to identify and prioritize mechanisms for more focused and detailed analysis. Methods: Here we present MELODI, a literature mining platform that can identify mechanistic pathways between any two biomedical concepts...
January 12, 2018: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29342218/cross-lagged-structural-equation-models-for-the-relationship-between-health-related-state-and-behaviours-and-body-bullying-in-adolescence-findings-from-longitudinal-study-elana
#4
Viviane S Straatmann, Ylva B Almquist, Aldair J Oliveira, Mikael Rostila, Claudia S Lopes
We investigated the stability and the directionality of being body bullied and a set of four variables- 1) Body Mass Index (BMI), 2) moderate and vigorous physical activity (MVPA), 3) television time (TV) and 4) video game/computer time (VG)-, termed in the present study as 'health-related state and behaviours (HRSB)'-across adolescence. The Adolescent Nutritional Assessment Longitudinal Study (ELANA) is a cohort study conducted among middle school students from two public and four private schools in Rio de Janeiro-Brazil...
2018: PloS One
https://www.readbyqxmd.com/read/29342198/three-dimensional-printing-model-improves-morphological-understanding-in-acetabular-fracture-learning-a-multicenter-randomized-controlled-study
#5
Zhenfei Huang, Wenhao Song, Yaoshen Zhang, Qiang Zhang, Dongsheng Zhou, Xi Zhou, Yu He
Conventional education results in unsatisfactory morphological understanding of acetabular fractures due to lack of three-dimensional (3D) details and tactile feedback of real fractures. Virtual reality (VR) and 3D printing (3DP) techniques are widely applied in teaching. The purpose of this study was to identify the effect of physical model (PM), VR and 3DP models in education of morphological understanding of acetabular fractures. 141 students were invited to participate in this study. Participants were equally and randomly assigned to the PM, VR and 3DP learning groups...
2018: PloS One
https://www.readbyqxmd.com/read/29342129/fabrication-structural-characterization-and-uniaxial-tensile-properties-of-novel-sintered-multi-layer-wire-mesh-porous-plates
#6
Liuyang Duan, Zhaoyao Zhou, Bibo Yao
There is an increasing interest in developing porous metals or metallic foams for functional and structural applications. The study of the physical and mechanical properties of porous metals is very important and helpful for their application. In this paper, a novel sintered multilayer wire mesh porous plate material (WMPPs) with a thickness of 0.5 mm-3 mm and a porosity of 10-35% was prepared by winding, pressing, rolling, and subsequently vacuum sintering them. The pore size and total size distribution in the as-prepared samples were investigated using the bubble point method...
January 17, 2018: Materials
https://www.readbyqxmd.com/read/29342126/tailoring-cu-nanoparticle-catalyst-for-methanol-synthesis-using-the-spinning-disk-reactor
#7
Christian Ahoba-Sam, Kamelia V K Boodhoo, Unni Olsbye, Klaus-Joachim Jens
Cu nanoparticles are known to be very active for methanol (MeOH) synthesis at relatively low temperatures, such that smaller particle sizes yield better MeOH productivity. We aimed to control Cu nanoparticle (NP) size and size distribution for catalysing MeOH synthesis, by using the spinning disk reactor. The spinning disk reactor (SDR), which operates based on shear effect and plug flow in thin films, can be used to rapidly micro-mix reactants in order to control nucleation and particle growth for uniform particle size distribution...
January 17, 2018: Materials
https://www.readbyqxmd.com/read/29342115/investigating-the-associations-between-ethnic-networks-community-social-capital-and-physical-health-among-marriage-migrants-in-korea
#8
Harris Hyun-Soo Kim
This study examines factors associated with the physical health of Korea's growing immigrant population. Specifically, it focuses on the associations between ethnic networks, community social capital, and self-rated health (SRH) among female marriage migrants. For empirical testing, secondary analysis of a large nationally representative sample (NSMF 2009) is conducted. Given the clustered data structure (individuals nested in communities), a series of two-level random intercepts and slopes models are fitted to probe the relationships between SRH and interpersonal (bonding and bridging) networks among foreign-born wives in Korea...
January 17, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29342063/low-prevalence-of-hip-and-knee-arthritis-in-active-marathon-runners
#9
Danielle Y Ponzio, Usman Ali M Syed, Kelly Purcell, Alexus M Cooper, Mitchell Maltenfort, Julie Shaner, Antonia F Chen
BACKGROUND: Existing evidence on whether marathon running contributes to hip and knee arthritis is inconclusive. Our aim was to describe hip and knee health in active marathon runners, including the prevalence of pain, arthritis, and arthroplasty, and associated risk factors. METHODS: A hip and knee health survey was distributed internationally to marathon runners. Active marathoners who completed ≥5 marathons and were currently running a minimum of 10 miles per week were included (n = 675)...
January 17, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29342053/gradual-symmetric-progression-of-dfna34-hearing-loss-caused-by-an-nlrp3-mutation-and-cochlear-autoinflammation
#10
Hiroshi Nakanishi, Yoshiyuki Kawashima, Kiyoto Kurima, Julie A Muskett, H Jeffrey Kim, Carmen C Brewer, Andrew J Griffith
OBJECTIVE: To characterize the audiometric phenotype of autosomal-dominant DFNA34 hearing loss (HL) caused by a missense substitution in the NLRP3 gene. NLRP3 encodes a critical component of the NLRP3 inflammasome that is activated in innate immune responses. STUDY DESIGN: This study was conducted under protocol 01-DC-0229 approved by the NIH Combined Neurosciences IRB. We performed medical and developmental history interviews and physical and audiological examinations of affected individuals with DFNA34 HL caused by the p...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342005/from-theoretical-physics-to-atomic-bombs-learning-to-value-medical-epistemology
#11
Benjamin L Mazer
No abstract text is available yet for this article.
January 16, 2018: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/29341957/multiple-tuning-of-magnetic-biskyrmions-using-in-situ-l-tem-in-centrosymmetric-mnniga-alloy
#12
Licong Peng, Ying Zhang, Min He, Bei Ding, Wenhong Wang, Jianqi Li, Jianwang Cai, Shouguo Wang, Guangheng Wu, Baogen Shen
Magnetic skyrmions are topologically protected spin configurations and have recently received growingly attention in magnetic materials. The existence of biskyrmions within a broad temperature range has been identified in our newly-discovered MnNiGa material, promising for potential application in physics and technological study. Here, the biskyrmion microscopic origination from the spin configuration evolution of stripe ground state is experimentally identified. The biskyrmion manipulations based on the influences of the basic microstructures and external factors such as grain boundary confinement, sample thickness, electric current, magnetic field and temperature have been systematically studied by using real-space Lorentz transmission electron microscopy...
January 17, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29341941/cauda-equina-syndrome-due-to-lumbar-disc-herniation-a-review-of-literature
#13
Stylianos Kapetanakis, Constantinos Chaniotakis, Constantinos Kazakos, Jannis V Papathanasiou
Cauda equina syndrome (CES) is a rare neurologic condition that is caused by compression of the cauda equina. Cauda equina consists of spinal nerves L2-L5, S1-S5 and the coccygeal nerve. The compression of these nerve roots can be caused mainly by lumbar disc herniation (45% of all causes). The diagnosis consists of two critical points: a) detailed history and physical examination and b) MRI or CT. The gold standard of the treatment of this syndrome is the surgical approach in combination with the timing of onset of symptoms...
December 20, 2017: Folia Medica
https://www.readbyqxmd.com/read/29341910/isomalt-and-its-diastereomer-mixtures-as-stabilizing-excipients-with-freeze-dried-lactate-dehydrogenase
#14
Anna-Kaisa Tuderman, Clare J Strachan, Anne M Juppo
The purpose of this research was to study isomalt as a protein-stabilizing excipient with lactate dehydrogenase (LDH) during freeze-drying and subsequent storage and compare it to sucrose, a standard freeze-drying excipient. Four different diastereomer mixtures of isomalt were studied. The stability of the protein was studied with a spectrophotometric enzyme activity test and circular dichroism after freeze-drying and after 21 days of storage at 16% RH. Physical stability was analyzed with differential scanning calorimetry and Karl Fischer titration...
January 13, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29341884/acute-stress-persistently-alters-locus-coeruleus-function-and-anxiety-like-behavior-in-adolescent-rats
#15
Olga Borodovitsyna, Matthew D Flamini, Daniel J Chandler
Stress is a physiological state characterized by altered neuroendocrine signaling, behavioral arousal, and anxiety. Chronic or traumatic stress may predispose individuals for multiple somatic and psychiatric illnesses. The locus coeruleus (LC) is a major node in the stress response that integrates input from multiple stress responsive neural circuits and releases norepinephrine throughout the central nervous system to promote vigilance and anxiety. Many mood disorders associated with prior stress are characterized by chronically altered noradrenergic signaling, yet the long-term impact of an acute stressor on LC function is not clear...
January 13, 2018: Neuroscience
https://www.readbyqxmd.com/read/29341873/differences-in-heart-rate-reserve-of-similar-physical-activities-during-work-and-in-leisure-time-a-study-among-danish-blue-collar-workers
#16
Pieter Coenen, Mette Korshøj, David M Hallman, Maaike A Huysmans, Allard J van der Beek, Leon M Straker, Andreas Holtermann
Recent studies suggest that while leisure-time physical activity (LTPA) promotes general health, engaging in occupational physical activity (OPA) may have negative health consequences. It has been hypothesized that the different health effects from OPA and LTPA can be explained by differences in physical activity (PA) intensity in these two domains. To assess the intensity of OPA and LTPA, we aimed to study the percentage heart rate reserve (%HRR) during similar types of OPA and LTPA during workdays. Data from the NOMAD study on Danish blue-collar workers (n=124) with objective measurements of PA (using accelerometers) and heart rate (using heart rate monitors) for 4 workdays were analysed...
January 13, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29341860/risk-management-of-free-radicals-involved-in-air-travel-syndromes-by-antioxidants
#17
Jeum-Nam Kim, Byung-Mu Lee
Frequent air travelers and airplane pilots may develop various types of illnesses. The environmental risk factors associated with air travel syndromes (ATS) or air travel-related adverse health outcomes raised concerns and need to be assessed in the context of risk management and public health. Accordingly, the aim of the present review was to determine ATS, risk factors, and mechanisms underlying ATS using scientific data and information obtained from Medline, Toxline, and regulatory agencies. Additional information was also extracted from websites of organizations, such as the International Air Transport Association (IATA), International Association for Medical Assistance to Travelers (IAMAT), and International Civil Aviation Organization (ICAO)...
January 17, 2018: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/29341852/emissions-of-organic-compounds-from-produced-water-ponds-ii-evaluation-of-flux-chamber-measurements-with-inverse-modeling-techniques
#18
Huy N Q Tran, Seth N Lyman, Marc L Mansfield, Trevor O'Neil, Richard L Bowers, Ann P Smith, Cara Keslar
In this study, we apply two different dispersion models to evaluate flux chamber measurements of emissions of 58 organic compounds, including C2-C11 hydrocarbons and methanol, ethanol, and isopropanol from oil and gas produced water ponds in the Uintah Basin. Field measurement campaigns using the flux chamber technique were performed at a limited number of produced water ponds in the Basin throughout 2013-2016. Inverse modeling results showed significantly higher emissions than were measured by the flux chamber...
January 17, 2018: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/29341781/valley-polarized-quantum-anomalous-hall-effect-in-ferrimagnetic-honeycomb-lattices
#19
Jian Zhou, Qiang Sun, Puru Jena
The valley-polarized quantum anomalous Hall effect (VP-QAHE), which combines valleytronics and topology in one material, is of significant fundamental and practical importance in condensed-matter physics and materials science. In previous model studies, VP-QAHE occurs under strong Rashba spin-orbit coupling (SOC), which is an extrinsic effect. Here, using a low energy k·p model, we propose a different mechanism of VP-QAHE by introducing an intrinsic staggered magnetic exchange field and develop a general picture of valley dependent band inversion in honeycomb lattice...
July 28, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29341774/tailoring-correlations-of-the-local-density-of-states-in-disordered-photonic-materials
#20
F Riboli, F Uccheddu, G Monaco, N Caselli, F Intonti, M Gurioli, S E Skipetrov
We present experimental evidence for the different mechanisms driving the fluctuations of the local density of states (LDOS) in disordered photonic systems. We establish a clear link between the microscopic structure of the material and the frequency correlation function of LDOS accessed by a near-field hyperspectral imaging technique. We show, in particular, that short- and long-range frequency correlations of LDOS are controlled by different physical processes (multiple or single scattering processes, respectively) that can be-to some extent-manipulated independently...
July 28, 2017: Physical Review Letters
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