Results 41 to 50 of about 1,055,858 (237)

Influence of postural changes on haemodynamics in internal carotid artery bifurcation aneurysm using numerical methods

Visual Computing for Industry, Biomedicine, and Art, 2022
Cerebral intracranial aneurysms are serious problems that can lead to stroke, coma, and even death. The effect of blood flow on cerebral aneurysms and their relationship with rupture are unknown.
Raghuvir Pai Ballambat, Mohammad Zuber, Shah Mohammed Abdul Khader, Anurag Ayachit, Kamarul Arifin bin Ahmad, Rajanikanth Rao Vedula, Sevagur Ganesh Kamath, Ibrahim Lutfi Shuaib   +7 more
doaj   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

The importance of gravity vector on adult mammalian organisms: Effects of hypergravity on mouse testis.

PLoS ONE, 2023
In the age of space exploration, the effect of hypergravity on human physiology is a relatively neglected topic. However, astronauts have several experiences of hypergravity during their missions. The main disturbance of altered gravity can be imputed to
Valentina Bonetto, Valeria Magnelli, Maurizio Sabbatini, Flavia Caprì, Jack J W A van Loon, Sara Tavella, Maria Angela Masini   +6 more
doaj   +1 more source

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

FEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi, Alain Dolla, Frauke Baymann, Celine Rommevaux, Latifa Elantak, Helene Gaussier, Matthieu Nouailler   +6 more
wiley   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park, Eun‐Hyuk Choi, Jorge Otero‐Millan, David S. Zee, Jeong‐Yoon Choi, Ji‐Soo Kim   +5 more
wiley   +1 more source

Human neural network activity reacts to gravity changes in vitro

Frontiers in Neuroscience, 2023
During spaceflight, humans experience a variety of physiological changes due to deviations from familiar earth conditions. Specifically, the lack of gravity is responsible for many effects observed in returning astronauts.
Johannes Striebel, Laura Kalinski, Maximilian Sturm, Nils Drouvé, Stefan Peters, Yannick Lichterfeld, Rouhollah Habibey, Jens Hauslage, Sherif El Sheikh, Volker Busskamp, Christian Liemersdorf   +10 more
doaj   +1 more source

Changes in Immune‐Inflammation Status and Prognosis in Pregnancy‐Related Cerebral Venous Thrombosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Distinguishing pathological changes from physiological adaptations in pregnancy‐related cerebral venous thrombosis (CVT) is clinically challenging. This study aimed to characterize coagulation, immune‐inflammation, and dehydration status in these patients and assess their prognostic value.
Xiaoming Zhang, Zilin Xu, Ran Duan, Chunxiao Lu, Da Zhou, Chen Zhou, Ran Meng, Xunming Ji   +7 more
wiley   +1 more source

Signal Transduction in Primary Human T Lymphocytes in Altered Gravity During Parabolic Flight and Clinostat Experiments

Cellular Physiology and Biochemistry, 2015
Background/Aims: Several limiting factors for human health and performance in microgravity have been clearly identified arising from the immune system, and substantial research activities are required in order to provide the basic information for ...
Svantje Tauber, Swantje Hauschild, Katrin Paulsen, Annett Gutewort, Christiane Raig, Eva Hürlimann, Josefine Biskup, Claudia Philpot, Hartwin Lier, Frank Engelmann, Antonella Pantaleo, Augusto Cogoli, Proto Pippia, Liliana E. Layer, Cora S. Thiel, Oliver Ullrich   +15 more
doaj   +1 more source

Is Gravity an Entropic Force? [PDF]

, 2011
The remarkable connections between gravity and thermodynamics seem to imply that gravity is not fundamental but emergent, and in particular, as Verlinde suggested, gravity is probably an entropic force.
Shan, Gao, Shan Gao
core   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source