Results 121 to 130 of about 18,304 (208)

To identify normovolemia in humans: The stroke volume response to passive leg raising vs. head-down tilt. [PDF]

Physiol Rep, 2022
Sejersen C, Christiansen T, Secher NH.
europepmc   +1 more source

3D‐Printed Actuator Powered by Liquid Crystal Elastomer Muscles at the Water–Air Interface

Advanced Materials Technologies, EarlyView.
Soft robots for unstructured environments require responsive, durable actuators. Liquid crystal elastomers (LCEs) provide large reversible deformations under thermal or optical stimuli. Direct ink writing enables fabrication of LCE actuators integrated with silicone, with mesogen chemistry and oligomers optimized for printable inks.
Cecilie Ryberg, Stefan Pendlmayr, Jan Skov Pedersen, Jens Vinge Nygaard, Jan P. F. Lagerwall, Brigitte Städler   +5 more
wiley   +1 more source

Effect of simulated microgravity via head-down tilt on intracranial compliance, brain oscillations and cardiovascular autonomic modulation. [PDF]

Sci Rep
Mendes Zambetta R, De Favari Signini É, Catai AM, Benelli A, Angius L, Dos Santos TCR, Michaliski ES, de Oliveira LB, Ocamoto GN, Santarnecchi E, Frigieri G, Russo TL.   +11 more
europepmc   +1 more source

Segmental Tissue Resistance of Healthy Young Adults during Four Hours of 6-Degree Head-Down-Tilt Positioning. [PDF]

Sensors (Basel), 2023
Freeborn TJ, Critcher S, Hooper G.
europepmc   +1 more source

Extrusion‐Based Bioprinting of Living Bioinks for Tissue and Organ Engineering

Advanced Materials Technologies, EarlyView.
Extrusion‐based bioprinting is presented as the most versatile route for fabricating living, heterogeneous tissues. Its ability to combine diverse bioinks, support matrices, and advanced printhead geometries transforms familiar constraints into powerful biofabrication opportunities.
Eric Silberman, Ester Sapir Baruch, Roni Cohen, Assaf Shapira, Tal Dvir   +4 more
wiley   +1 more source

The effect of bed rest, unilateral limb immobilization and head-down tilt on muscle protein synthesis: A systematic review and meta-analysis. [PDF]

Exp Physiol
Prokopidis K, Morgan PT, Deane CS, Witard OC, Church DD.   +4 more
europepmc   +1 more source

Low-dissipation optimization of the prefrontal cortex in the -12° head-down tilt position: A functional near-infrared spectroscopy study. [PDF]

Front Psychol, 2022
Lun T, Wang D, Li L, Zhou J, Zhao Y, Chen Y, Yin X, Ou S, Yu J, Song R.   +9 more
europepmc   +1 more source

Autonomous Reconfigurable Modular Conductive Hydrogels for Adaptive and Degradable Bioelectronic Interfaces

Advanced Materials Technologies, EarlyView.
Bridging rigid electrodes with soft, irregular tissues demands more than conductivity alone. Modular conductive hydrogels autonomously reconfigure into conformal electrode‐tissue interfaces, coupling mixed ionic‐electronic conduction with tissue‐like mechanics, self‐healing, and degradability.
Matthew K. Burgess, Zofia B. Wolny, Zekun Liu, Karolina Cysewska, Malavika Nair   +4 more
wiley   +1 more source

Optic disc edema during strict 6° head-down tilt bed rest is related to one-carbon metabolism pathway genetics and optic cup volume. [PDF]

Front Ophthalmol (Lausanne), 2023
Zwart SR, Macias BR, Laurie SS, Ferguson C, Stern C, Suh A, Melin MM, Young M, Bershad E, Smith SM.   +9 more
europepmc   +1 more source

Self‐Sealing Microneedles Improve Precision and Reduce Reflux in Subretinal Cell Transplantation

Advanced Materials Technologies, EarlyView.
Ultrafine 49G microneedles enable subretinal delivery of induced pluripotent stem cell‐derived retinal pigment epithelial cells through a 50 µm outer diameter tip. Compared with conventional 38G microcannulas, these microneedles reduce cell suspension reflux in a rabbit model, highlighting the potential of microinvasive delivery instruments to improve ...
Jared Ching, Hinako Ichikawa, Aya Motoyoshi, Shin Tanaka, Liam Morrow, Satoshi Shirae, Noriko Sakai, Shohei Kitahata, Michiko Mandai, Kazuaki Kadonosono   +9 more
wiley   +1 more source