Results 71 to 80 of about 3,568,014 (331)
Actin cortex architecture regulates cell surface tension
Nature Cell Biology, 2017 Animal cell shape is largely determined by the cortex, a thin actin network underlying the plasma membrane in which myosin-driven stresses generate contractile tension. Tension gradients result in local contractions and drive cell deformations.
P. Chugh +9 more
semanticscholar +1 more source
Hot axions and the H0 tension [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 Scattering and decay processes of thermal bath particles involving heavy leptons can dump hot axions in the primordial plasma around the QCD phase transition.
Francesco D’Eramo +3 more
semanticscholar +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou +10 more
wiley +1 more source
Effect of internal technological defects and loading waveform on CFRP fatigue life
Fracture and Structural IntegrityThis paper explores the effect of internal technological defects on the fatigue life of carbon fiber reinforced plastic (CFRP) under simple loading waveforms.
D.S. Lobanov +3 more
doaj +1 more source
Sensors, 2018 Galloping of overhead transmission lines (OHTLs) may induce conductor breakage and tower collapse, and there is no effective method for long distance distribution on-line galloping monitoring.
Guo-ming Ma +5 more
doaj +1 more source
Associations between stress and migraine and tension-type headache: Results from a school-based study in adolescents from grammar schools in Germany [PDF]
, 2011 Introduction: Stress is considered the major contributor to migraine and tension-type headache in adolescents. Previous studies have focused on general stressors, whereas the aim of the present study was to investigate associations between individuals ...
Blaschek, Astrid +7 more
core +1 more source
Are microtubules tension sensors?
Nature Communications, 2019 Mechanical signals play many roles in cell and developmental biology. Several mechanotransduction pathways have been uncovered, but the mechanisms identified so far only address the perception of stress intensity.
O. Hamant +4 more
semanticscholar +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Tunneling with negative tension
, 2008 We describe a new family of thin-wall instantons, with negative tension bubble walls, that mediate tunneling between Minkowski or de Sitter vacua. Some of these instantons can have exponentially enhanced tunneling rates, and would dominate the Euclidean ...
Marvel, Kate, Wesley, Daniel
core +1 more source
Effects of small surface tension in Hele-Shaw multifinger dynamics: an analytical and numerical study [PDF]
, 2002 We study the singular effects of vanishingly small surface tension on the dynamics of finger competition in the Saffman-Taylor problem, using the asymptotic techniques described in [S. Tanveer, Phil. Trans. R. Soc. Lond. A 343, 155 (1993)]and [M. Siegel,
A.J. DeGregoria +36 more
core +3 more sources