Results 31 to 40 of about 55,411 (278)

Microgravity and Space Medicine [PDF]

open access: yesInternational Journal of Molecular Sciences, 2021
This Special Issue (SI), “Microgravity and Space Medicine”, covers research articles and reviews focusing on gravitational biology, cancer research and space medicine [...]
openaire   +2 more sources

Flow-enhanced priming of hESCs through H2B acetylation and chromatin decondensation

open access: yesStem Cell Research & Therapy, 2019
Background Distinct mechanical stimuli are known to manipulate the behaviors of embryonic stem cells (ESCs). Fundamental rationale of how ESCs respond to mechanical forces and the potential biological effects remain elusive.
Jiawen Wang   +7 more
doaj   +1 more source

Gravity-Vector Induces Mechanical Remodeling of rMSCs via Combined Substrate Stiffness and Orientation

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Distinct physical factors originating from the cellular microenvironment are crucial to the biological homeostasis of stem cells. While substrate stiffness and orientation are known to regulate the mechanical remodeling and fate decision of mesenchymal ...
Chen Zhang   +15 more
doaj   +1 more source

Experimental Investigation of Pendant and Sessile Drops in Microgravity [PDF]

open access: yes, 2010
The experiments regarding the contact angle behavior of pendant and sessile evaporating drops were carried out in microgravity environment. All the experiments were performed in the Drop Tower of Beijing, which could supply about 3.6 s of microgravity ...
Tadrist L   +14 more
core   +1 more source

Direct mechanical exposure initiates hepatocyte proliferation

open access: yesJHEP Reports, 2023
Background & Aims: Liver paracrine signaling from liver sinusoid endothelial cells to hepatocytes in response to mechanical stimuli is crucial in highly coordinated liver regeneration.
Wang Li   +12 more
doaj   +1 more source

Labyrinthine Structure with Subwavelength and Broadband Sound Insulation

open access: yesShock and Vibration, 2020
In this text, the combination of spiral structure and zigzag channels is introduced to design labyrinthine structures, in which sound waves can propagate alternately in the clockwise and counterclockwise directions.
Heng Jiang   +6 more
doaj   +1 more source

Asymptotic symmetries of Yang-Mills fields in Hamiltonian formulation

open access: yesJournal of High Energy Physics, 2020
We investigate the asymptotic symmetry group of the free SU(N )-Yang-Mills theory using the Hamiltonian formalism. We closely follow the strategy of Henneaux and Troessaert who successfully applied the Hamiltonian formalism to the case of gravity and ...
Roberto Tanzi, Domenico Giulini
doaj   +1 more source

Study on the Effect of Micro-Force Perturbations and Temperature Fluctuation on Interferometer for the Taiji Program

open access: yesSensors, 2023
To increase the interferometric measurement resolution in the Taiji program, we present a noise suppression method in this paper. Taking the specific micro-force perturbation and temperature fluctuation in the Taiji-1 interferometer as an example, we set
Juan Wang   +5 more
doaj   +1 more source

Correlation of Scale Factor Non-Linearity and Vibration Rectification Error in Vibrating Beam Accelerometers

open access: yesIEEE Access
Vibration Rectification Error (VRE) is a critical parameter for high-performance accelerometers operating in dynamic environments. This paper presents a focused experimental study to rigorously investigate the relationship between VRE and Scale Factor ...
Theo Miani   +6 more
doaj   +1 more source

Beijing Drop Tower Microgravity Adjustment Towards 10–3 ~ 10−5g Level by Cold-Gas Thrusters

open access: yes, 2023
Drop tower is an important facility for conducting microgravity experiments on the ground. Since the Beijing drop tower was put into operation in 2003, a large number of scientific experiments have been carried out in the fields of microgravity fluid ...
Chu Zhang   +17 more
core   +2 more sources

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