Results 71 to 80 of about 1,285,086 (339)

Entropy of charged dilaton-axion black hole

, 2008
Using brick wall method the entropy of charged dilaton-axion black hole is determined for both asymptotically flat and non-flat cases. The entropy turns out to be proportional to the horizon area of the black hole confirming the Beckenstien, Hawking area-
Ren Zhao, S. Hawking, Soumitra SenGupta, Tanwi Ghosh   +3 more
core   +1 more source

Microstructures and Mechanical Properties of Al-Ti-Zr-Nb-Ta-Mo-V Refractory High-Entropy Alloys with Coherent B2 Nanoprecipitation

Crystals, 2021
In this work, the microstructural evolution and mechanical properties of new body-centered cubic (BCC)-based Al-Ti-Zr-Nb-Ta-Mo-V refractory high-entropy alloys (RHEAs) with coherent B2 precipitation are investigated.
Zhenhua Wang, Dongming Jin, Jincan Han, Qing Wang, Zhongwei Zhang, Chuang Dong   +5 more
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

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, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Optimize the Mechanical Properties of Al_0.6CoCrFeNi High-Entropy Alloys by Thermo-Mechanical Processing

Metals, 2022
The phase stability, microstructural evolution, and mechanical properties of Al0.6CoCrFeNi high-entropy alloy (HEA) subjected to different thermo-mechanical treatments were systematically investigated in the present study.
Huijun Yang, Yaqin Tan, Junwei Qiao, Jeffrey A. Hawk, Yong Zhang, Michael Gao, Peter K. Liaw   +6 more
doaj   +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

Entropy production in systems with long range interactions

, 2017
On a fine grained scale the Gibbs entropy of an isolated system remains constant throughout its dynamical evolution. This is a consequence of Liouville's theorem for Hamiltonian systems and appears to contradict the second law of thermodynamics.
Levin, Yan, Pakter, Renato
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Entanglement, fidelity, and quantum phase transition in antiferromagnetic-ferromagnetic alternating Heisenberg chain

, 2008
The fidelity and entanglement entropy in an antiferromagnetic-ferromagnetic alternating Heisenberg chain are investigated by using the method of density-matrix renormalization-group.
Re, Jie, Zhu, Shiqun
core   +1 more source

Pandemic mitigation: Bringing it home

Mathematical Biosciences and Engineering, 2010
In the US, national, regional and even institutional plans for ameliorating the effects of pandemic influenza focus on stockpiling antiviral medications, early production and distribution of vaccine, mass and personal social distancing, and a number of ...
Tom Reichert
doaj   +1 more source

Endocrine Entropy

Journal of the Pakistan Medical Association
This communication defines and describes the novelconcept of endocrine entropy. The authors share insightsregarding the various facets of entropy in endocrineepidemiology, physiology, clinical presentation andmanagement. The discussion opens up a new way ofapproaching endocrinology. Recent advances in artificialintelligence, assessment and addressal of
Sanjay Kalra, Nitin Kapoor
openaire   +4 more sources