Results 71 to 80 of about 939,663 (300)

Low Mach and Peclet number limit for a model of stellar tachocline and upper radiative zones

Electronic Journal of Differential Equations, 2016
We study a hydrodynamical model describing the motion of internal stellar layers based on compressible Navier-Stokes-Fourier-Poisson system. We suppose that the medium is electrically charged, we include energy exchanges through radiative transfer and
Donatella Donatelli, Bernard Ducomet, Marek Kobera, Sarka Necasova   +3 more
doaj  

Phase Retrieval in Short-Range Optical Communication Using Temporal Transport-of-Intensity Equation with Direct Detection

Photonics
Direct detection (DD) is a straightforward, cost-effective receiving scheme for medium- and short-range fiber-optic communication systems, yet directly accessing phase information presents inherent challenges. The temporal transport-of-intensity equation
Yue Liu, Jiahao Huo, Peng Qin, Xiaoying Zhang, Keping Long   +4 more
doaj   +1 more source

Why Do Chromospheric Oscillations in Sunspot Umbrae Appear to Propagate Downward?

The Astrophysical Journal Letters, 2023
Umbral oscillations constitute the most noticeable chromospheric feature of sunspot umbrae—large-amplitude oscillations of intensity (umbral flashes, if very strong) and line-of-sight velocity, with periods of about 3 minutes.
Jongchul Chae, Eun-Kyung Lim, Kyeore Lee, Hannah Kwak, Kyoung-Sun Lee, Juhyung Kang, Soosang Kang   +6 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Phase-space analysis of transport of intensity equation under partially coherent illumination

, 2015
We introduced a generalized version of the transport of intensity equation from a partially coherent phase-space perspective that relates axial intensity derivative to the transverse divergence of the conditional frequency moment of the Wigner ...
Asundi, Anand, Anand Asundi, Chao Zuo, Qian Chen, Zuo, Chao, Chen, Qian   +5 more
core   +1 more source

Relationship and comparison between the Monge–Ampère equation and the transport of intensity equation for phase retrieval

, 2023
Phase retrieval from two or more irradiance (or intensity) distributions is a fundamental and important inverse problem in optics. One of the most widely used phase retrieval methods is based on the transport of intensity equation (TIE). Although simple
ZeXin Feng (14225456), Xiao Ma (411875), Chunyuan Chen (3477305)   +2 more
core   +1 more source

Dual-mode varifocal Moiré metalens for quantitative phase and edge-enhanced imaging

Nanophotonics
Transport-of-intensity equation (TIE) as a noninterference method for quantitative phase imaging (QPI) has broad applications in micrographic imaging and optical metrology.
Lian Yi, Liu Yongqi, Cheng Dewen, Chi Cheng, Bao Yanjun, Wang Yongtian   +5 more
doaj   +1 more source

Heterozygous loss‐of‐function alleles associate the conserved 3′‐5′ exoribonuclease EXOSC10 with hypersensitivity to the anticancer drug 5‐fluorouracil

Molecular Oncology, EarlyView.
EXOSC10, an essential nuclear RNA exosome‐associated 3′‐5′ exoribonuclease, is inhibited by the anticancer drug 5‐fluorouracil (5‐FU), and EXOSC10 depletion increases 5‐FU sensitivity. The colon‐cancer variant EXOSC10S402T, located in a proteolysis motif, is stable and nuclear but nonfunctional in vivo.
Radhika Sain, Yann Le Page, Frédéric Percevault, Emmanuelle Becker, Luc Negroni, Almudena Fernandez, Marta Cantero, Diego Muñoz‐Santos, Lluís Montoliu, Cyrille Garnier, Michael Primig   +10 more
wiley   +1 more source

Dissecting the Opposing Roles of Thermal Intensity and Growing Degree Days in Regulating Spring Wheat Protein Content

Plants
Protein content (PC) stability is crucial for wheat quality. This study utilized partial least squares regression and structural equation modeling to distinguish the physiological effects of “thermal intensity” versus “thermal accumulation” on spring ...
Xuan Lei, Jun Ye, Xiaobing Wang, Wenjia Yang, Haibin Zhang, Xuanwei Zhao, Juan Liu, Tingjia Zhang, Zhenyu Zhang, Tingyu Ma, Cundong Li, Xin Gao, Juan Li, Zhanyuan Lu   +13 more
doaj   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source