Results 121 to 130 of about 8,192,646 (396)

Improved scenario of baryogenesis [PDF]

arXiv, 1999
It is assumed that, in the primordial plasma, at the temperatures above the mass of electron, fermions are in the neutral state being the superposition of particle and antiparticle. There exists neutral proton-electron symmetry. Proton-electron equilibrium is defined by the proton-electron mass difference.
arxiv  

Boundaries of photosynthesis: adaptations of carbon fixation in extreme environments

FEBS Open Bio, EarlyView.
Photosynthesis faces challenges from environmental extremes of temperature, pH, and salinity, limiting gas diffusion, modifying membrane fluidity, and destabilizing photochemical and biochemical reactions. Photosynthetic organisms have evolved unique adaptations overcoming these stresses and maintaining their photosynthetic activity.
Pere Aguiló‐Nicolau, Concepción Iñiguez, Sebastià Capó‐Bauçà, Jeroni Galmés   +3 more
wiley   +1 more source

Polarization phenomena initiated by electromagnetic interactions of particles with nuclei [PDF]

Âderna Fìzika ta Energetika, 2010
Polarization phenomena in the processes induced by electromagnetic interaction of photons, electrons, nucleons and certain composite particles with nuclei are studied.
V. K. Tartakovsky
doaj  

Iron‐dependent lysosomal LDL oxidation induces the expression of scavenger receptor A in human THP‐1 monocytes

FEBS Open Bio, EarlyView.
In human monocytic cells THP‐1, a limited uptake of native—not oxidized—LDL/VLDL induced expression of scavenger receptor A and cellular adhesion. Induction was inhibited by lysosomotropic (WR‐1065) and lipophilic (BHT) antioxidants and by siRNAs against ferritinophagy.
Martina Čierna, Richard Buchal, Martin Leníček, Amit Shachak, Jan Pláteník   +4 more
wiley   +1 more source

The impact of frailty syndrome on skeletal muscle histology: preventive effects of exercise

FEBS Open Bio, EarlyView.
Frailty syndrome exacerbates skeletal muscle degeneration via increased ECM deposition and myofiber loss. This study, using a murine model, demonstrates that endurance exercise attenuates these histopathological alterations, preserving muscle integrity. Findings support exercise as a viable strategy to counteract frailty‐induced musculoskeletal decline
Fujue Ji, Hae Sung Lee, Haesung Lee, Jong‐Hee Kim   +3 more
wiley   +1 more source

Creep Characterization of Inconel 718 Lattice Metamaterials Manufactured by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView., 2023
Herein, the creep characteristics of additively manufactured Inconel 718 metamaterials are investigated. The creep behavior of metamaterials and the effects of microstructural defects are assessed, and the microstructure defects are accurately captured using Kachanov's creep damage model.
Akash Singh Bhuwal, Yong Pang, Ian Maskery, Ian Ashcroft, Wei Sun, Tao Liu   +5 more
wiley   +1 more source

Electron-electron Bound States in Parity-Preserving QED3

, 2002
By considering the Higgs mechanism in the framework of a parity-preserving Planar Quantum Electrodynamics, one shows that an attractive electron-electron interaction may come out. The e-e interaction potential emerges as the non-relativistic limit of the
't Hooft G, 't Hooft G, Aitchison I J R, Belich H, Binegar B, Chadan K, Chen Y, Christiansen H, De Andrade M A, Deser S, Deser S, Dobroliubov M I, Ferreira M M Jr, Fetter A L, Georgelin Y, Girotti H O, Girotti H O, H Belich, Hagen C R, J A Helay l-Neto, Jackiw R, Jackiw R, Kalmeyer V, Kim D H, Kogan Ya I, Laughlin R B, Laughlin R B, Lykken J, M M Ferreira, O M Del Cima, Randjbar-Daemi S, Sakurai J J   +31 more
core   +1 more source

An approach for coherent periodogram averaging of tilt‐series data for improved contrast transfer function estimation

FEBS Open Bio, EarlyView.
The contrast transfer function (CTF) is an imaging aberration that is a major resolution‐limiting factor in cryo‐electron microscopy (cryo‐EM). Precise CTF estimation is key to overcoming this limitation, but is particularly challenging in cryo‐electron tomography (cryo‐ET) data. Here, we present an approach for using geometric information to assist in
Sagar Khavnekar, William Wan
wiley   +1 more source

Flexural Behavior of Bidirectionally Graded Lattice

Advanced Engineering Materials, EarlyView., 2023
An experimental study of the bending behavior of bidirectional body‐centered cubic lattice beams is conducted in comparison to uniform and unidirectional counterparts of electron beam melted SS 316 L. Experimental results are used to develop and validate a finite element model which is subsequently used to conduct parametric studies to assess the ...
Chamini Rodrigo, Shanqing Xu, Yvonne Durandet, Darren Fraser, Dong Ruan   +4 more
wiley   +1 more source

Quantum decoherence by Coulomb interaction

New Journal of Physics, 2020
The performance of modern quantum devices in communication, metrology or microscopy relies on the quantum–classical interaction which is generally described by the theory of decoherence.
N Kerker, R Röpke, L M Steinert, A Pooch, A Stibor   +4 more
doaj   +1 more source