Results 51 to 60 of about 5,004 (256)

Limited musculoskeletal benefits of artificial gravity combined with cycling during bed rest: Results from the BRACE study

Experimental Physiology, EarlyView.
Abstract Prolonged exposure to microgravity, simulated via 6° head‐down tilt bed rest (HDT), induces musculoskeletal deconditioning and negatively impacts body composition. This study evaluated whether a combination of aerobic exercise with artificial gravity (AG) offers superior protection in comparison to exercise alone.
Mirko Mandić, Tommy R. Lundberg, Jean‐Pol Frippiat, Adam C. McDonnell, Igor B. Mekjavić, Marie‐Pierre Bareille, Rebecca Billette de Villemeur, Rodrigo Fernandez‐Gonzalo   +7 more
wiley   +1 more source

Polymer fibers electrospun using pulsed voltage

Materials & Design, 2019
Electrospinning processes are commonly conducted with direct-current voltage (DCV) but the fibers can also be electrospun using a pulsed voltage (PV). Although this method has been used in other electrostatic processes, there is little research on its ...
Adam Mirek, Paulina Korycka, Marcin Grzeczkowicz, Dorota Lewińska   +3 more
doaj   +1 more source

Chemical Degradation of PSF-PUR Blend Hollow Fiber Membranes—Assessment of Changes in Properties and Morphology after Hydrolysis

Membranes, 2021
In this study, we focused on obtaining polysulfone-polyurethane (PSF-PUR) blend partly degradable hollow fiber membranes (HFMs) with different compositions while maintaining a constant PSF:PUR = 8:2 weight ratio.
Wioleta Sikorska, Monika Wasyłeczko, Małgorzata Przytulska, Cezary Wojciechowski, Gabriel Rokicki, Andrzej Chwojnowski   +5 more
doaj   +1 more source

Method of calibration for glucose sensor implemented in an integrated microdialysis based system [PDF]

, 2005
In this paper the novel method of calibration of glucose amperometric type sensor implemented in an integrated microdialysis based micro system is presented.
Bergveld, P., Olthuis, W., Pijanowska, D.G., Sprenkels, A.J.   +3 more
core   +1 more source

Reduced cardiovascular mortality at moderate altitude: a putative role of physical activity and body mass

The Journal of Physiology, EarlyView.
Abstract figure legend Benefits of performing physical exercise at moderate altitude. At moderate altitude, increased resting metabolic rate and physical exertion promote physical fitness and exercise tolerance, whereas hypoxia suppresses appetite and elicits adaptations that increase tissue O2 delivery while augmenting O2‐independent ATP production ...
Robert T. Mallet, Johannes Burtscher, Hannes Gatterer, Katharina Hüfner, Samuel Verges, Tadej Debevec, Martin Burtscher   +6 more
wiley   +1 more source

Relation Between the Mechanical Properties of Muscles and Their Structure on the Molecular Level

Engineering Transactions, 2015
Mechanical properties of the vertebrate skeletal muscles are satisfactorily described on the basis of a new model of the myosin molecule packing into the thick filament.
L. Skubiszak, L. Kowalczyk
doaj   +1 more source

Defining Sex‐ and Age‐Specific Initial Stay Times for Continuous Moderate‐Intensity Work in Hot Environments Before Heat‐Mitigation Controls Are Implemented – Part A

American Journal of Industrial Medicine, Volume 68, Issue 11, Page 933-948, November 2025.
ABSTRACT Rationale Industry guidelines recommend work‐rest allocations to limit increases in core temperature (Tcore; > 38.0°C or > Δ1.0°C above resting) during work in the heat. However, the initial duration of permissible work before implementing these allocations is not specified (initial stay time [IST]) and individual factors such as sex and age ...
Fergus K. O'Connor, Kristina‐Marie T. Janetos, Brodie J. Richards, Roberto C. Harris‐Mostert, Katie E. Wagar, Leonidas G. Ioannou, James J. McCormick, Robert D. Meade, Emily J. Tetzlaff, Ronald J. Sigal, W. Shane Journeay, Glen P. Kenny   +11 more
wiley   +1 more source

Defining Sex‐ and Age‐Specific Initial Stay Times for Continuous Heavy‐Intensity Work in Hot Environments Before Heat‐Mitigation Controls Are Implemented—Part B

American Journal of Industrial Medicine, Volume 68, Issue 11, Page 949-964, November 2025.
ABSTRACT Rationale Industry guidelines recommend work‐rest schedules to prevent unsafe core temperature elevations (> 38.0°C or > Δ1.0°C above baseline resting) in an “average” worker exposed to occupational heat stress. While permissible initial work durations (initial stay times [IST]) before implementing rest schedules have been suggested, existing ...
Fergus K. O'Connor, Kristina‐Marie T. Janetos, Brodie J. Richards, Roberto C. Harris‐Mostert, Katie E. Wagar, Leonidas G. Ioannou, James J. McCormick, Robert D. Meade, Emily J. Tetzlaff, Ronald J. Sigal, W. Shane Journeay, Glen P. Kenny   +11 more
wiley   +1 more source

Erratum: Jamšek et al. Gaussian Mixture Models for Control of Quasi-Passive Spinal Exoskeletons. Sensors 2020, 20, 2705

Sensors, 2021
There was an error in the original article [...]
Marko Jamšek, Tadej Petrič, Jan Babič
doaj   +1 more source

Touchless Heart Rate Monitoring from an Unmanned Aerial Vehicle Using Videoplethysmography

Sensors, 2023
Motivation: The advancement of preventive medicine and, subsequently, telemedicine drives the need for noninvasive and remote measurements in patients’ natural environments.
Anna Pająk, Jaromir Przybyło, Piotr Augustyniak   +2 more
doaj   +1 more source