46,408 results match your criteria indicating physical


Os Doping Suppressed Cu-Fe Charge Transfer and Induced Structural and Magnetic Phase Transitions in LaCuFeOsO ( = 1 and 2).

Inorg Chem 2021 Apr 13. Epub 2021 Apr 13.

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

B-site Os-doped quadruple perovskite oxides LaCuFeOsO ( = 1 and 2) were prepared under high-pressure and high-temperature conditions. Although parent compound LaCuFeO experiences Cu-Fe intermetallic charge transfer that changes the Cu/Fe charge combination to Cu/Fe at 393 K, in the Os-doped samples, the Cu and Fe charge states are found to be constant 2+ and 3+, respectively, indicating the complete suppression of charge transfer. Correspondingly, Os and mixed Os valence states are determined by X-ray absorption spectroscopy for = 1 and = 2 compositions, respectively. Read More

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Predictors of Parental Barriers to Reduce Excessive Child Screen Time Among Parents of Under-Five Children in Selangor, Malaysia: Cross-sectional Study.

J Med Internet Res 2021 Apr 13;23(4):e25219. Epub 2021 Apr 13.

Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.

Background: Globally, there is an increasing prevalence of excessive screen time exposure among young children, including in Malaysia. Parents are advised to limit this exposure, but there are barriers for many of them to follow this recommendation. To date, there is a lack of research on the factors that cause these parental barriers. Read More

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Membrane binding controls ordered self-assembly of animal septins.

Elife 2021 Apr 13;10. Epub 2021 Apr 13.

Bionanoscience Department, Delft University of Technology, Delft, Netherlands.

Septins are conserved cytoskeletal proteins that regulate cell cortex mechanics. The mechanisms of their interactions with the plasma membrane remain poorly understood. Here we show by cell-free reconstitution that binding to flat lipid membranes requires electrostatic interactions of septins with anionic lipids and promotes the ordered self-assembly of fly septins into filamentous meshworks. Read More

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Analysis of Extra Virgin Olive Oils from Two Italian Regions by Means of Proton Nuclear Magnetic Resonance Relaxation and Relaxometry Measurements.

J Agric Food Chem 2021 Apr 13. Epub 2021 Apr 13.

Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 3, 56124 Pisa, Italy.

The interest in development of new non-destructive methods for characterization of extra virgin olive oils (EVOOs) has been increasing in the recent years. Among different experimental techniques, nuclear magnetic resonance (NMR) relaxation measurements are very promising in the field of food characterization and authentication. In this study, we focused on relaxation times and measured at different magnetic field strengths (namely, 2, 100, and 400 MHz) and H NMR relaxometry dispersions directly on olive oil samples without any chemical/physical treatments. Read More

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A robust nitridation technique for fabrication of disordered superconducting TiN thin films featuring phase slip events.

Sci Rep 2021 Apr 12;11(1):7888. Epub 2021 Apr 12.

Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh, 201002, India.

Disorder induced phase slip (PS) events appearing in the current voltage characteristics (IVCs) are reported for two-dimensional TiN thin films produced by a robust substrate mediated nitridation technique. Here, high temperature annealing of Ti/SiN based metal/substrate assembly is the key to produce majority phase TiN accompanied by TiSi & elemental Si as minority phases. The method itself introduces different level of disorder intrinsically by tuning the amount of the non-superconducting minority phases that are controlled by annealing temperature (T) and the film thickness. Read More

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Feasibility of Colocating a Nutrition Education Program into a Medical Clinic Setting to Facilitate Pediatric Obesity Prevention.

J Prim Care Community Health 2021 Jan-Dec;12:21501327211009695

University of California, Davis, CA, USA.

Purpose: Within a medical clinic environment, pediatric obesity prevention education for families faces challenges. Existing long-term government-funded nutrition education programs have the expertise and staff to deliver. The purpose is to determine feasibility of colocating the Expanded Food and Nutrition Education Program (EFNEP) into a medical clinic setting to support pediatric obesity prevention. Read More

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Muscle damage in response to a single bout of high intensity concentric exercise in patients with Pompe disease.

Ann Transl Med 2021 Mar;9(5):389

Department of Neurology, Medical School, University of Pécs, Pécs, Hungary.

Background: In Pompe disease, resistance exercise could be an effective treatment to delay motor function impairment, however, the acute effects of this exercise modality are unclear.

Methods: In a prospective cohort study, we compared responses to a single bout of resistance exercise by serum markers of muscle damage and quantitative muscle magnetic resonance imaging (MRI) in patients (n=12) and age- and gender-matched healthy controls (n=12). Participants performed 50 maximal effort concentric knee flexions on a dynamometer. Read More

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Measurement of Motivation States for Physical Activity and Sedentary Behavior: Development and Validation of the CRAVE Scale.

Front Psychol 2021 25;12:568286. Epub 2021 Mar 25.

Yale Stress Center, Yale School of Medicine, New Haven, CT, United States.

Physical activity, and likely the motivation for it, varies throughout the day. The aim of this investigation was to create a short assessment (CRAVE: Cravings for Rest and Volitional Energy Expenditure) to measure motivation states (wants, desires, urges) for physical activity and sedentary behaviors. Five studies were conducted to develop and evaluate the construct validity and reliability of the scale, with 1,035 participants completing the scale a total of 1,697 times. Read More

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Relationship between urinary heavy metals with metabolic syndrome and its components in population from Hoveyzeh cohort study: A case-control study in Iran.

J Trace Elem Med Biol 2021 Apr 5;66:126757. Epub 2021 Apr 5.

Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran. Electronic address:

Background: The incidence of Metabolic Syndrome (MetS) has been growing rapidly and is rising to pandemic proportions. Although obesity is a primary risk factor for the enhancement of these conditions, not all obese individuals develop metabolic syndrome, indicating that the risk for developing MetS is impacted by other genetic and/or environmental factors such as heavy metals. Therefore, the present study focused on the association between exposures to heavy metal and MetS. Read More

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A competitive nature-derived multilayered scaffold based on chitosan and alginate, for full-thickness wound healing.

Carbohydr Polym 2021 Jun 8;262:117921. Epub 2021 Mar 8.

Laboratory for Stem Cell & Regenerative Medicine, Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, P. O. Box: 33, PC 616, Oman. Electronic address:

The aim of this study was to evaluate a bioactive multilayer wound dressing, based on chitosan and alginate. To enhance healing potential, Dracaena Cinnabari and Aloe Vera were loaded as separate layers into the scaffold. The bare and bioactive multilayered scaffolds were fabricated by an iterative layering freeze-drying technique. Read More

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Ambient carbon monoxide and daily mortality: a global time-series study in 337 cities.

Lancet Planet Health 2021 Apr;5(4):e191-e199

Institute of Epidemiology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany.

Background: Epidemiological evidence on short-term association between ambient carbon monoxide (CO) and mortality is inconclusive and limited to single cities, regions, or countries. Generalisation of results from previous studies is hindered by potential publication bias and different modelling approaches. We therefore assessed the association between short-term exposure to ambient CO and daily mortality in a multicity, multicountry setting. Read More

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Perioperative high inspired oxygen fraction induces atelectasis in patients undergoing abdominal surgery: A randomized controlled trial.

J Clin Anesth 2021 Apr 7;72:110285. Epub 2021 Apr 7.

Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine in Seoul, South Korea. Electronic address:

Study Objective: We evaluated the feasibility of use and effects on postoperative atelectasis and complications of lower inspired oxygen fraction (FIO) compared to conventional oxygen therapy.

Design: Single center, randomized clinical trial.

Setting: University hospital, operating room and postoperative recovery area. Read More

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Dual-tasking impacts gait, cognitive performance, and gaze behavior during walking in a real-world environment in older adult fallers and non-fallers.

Exp Gerontol 2021 Apr 7:111342. Epub 2021 Apr 7.

Department of Physical Therapy, MGH Institute of Health Professions, Boston, MA, United States of America.

Introduction: Everyday walking often involves simultaneous performance of a cognitive task in environments with competing auditory and visual stimuli. Previous research has not evaluated task performance in these situations, where older adults are known to fall, limiting our understanding of how older adults adjust their gait, visual scanning (gaze), and cognitive processing to avoid falls (or not). The purpose of this study was to examine the effect of dual-task walking in a high-distraction real-world environment on cognitive performance, gait performance, and gaze behavior in older adult fallers relative to non-fallers. Read More

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The patient enablement instrument for back pain: reliability, content validity, construct validity and responsiveness.

Health Qual Life Outcomes 2021 Apr 9;19(1):116. Epub 2021 Apr 9.

Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark.

Background: Currently, there are no outcome measures assessing the ability of people with non-specific low back pain to self-manage their illness. Inspired by the 'Patient Enablement Instrument', we developed the Patient Enablement Instrument for Back Pain (PEI-BP). The aim of this study was to describe the development of the Patient Enablement Instrument for Back Pain (PEI-BP) and investigate content validity, construct validity, internal consistency, test-retest reliability, measurement error, responsiveness and floor and ceiling effects. Read More

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