Results 51 to 60 of about 14,824 (273)

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

FEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu, Huseyn Babayev, Ismail Ogulur, Sena Ardicli, Yagiz Pat, Duygu Yazici, Bingjie Zhao, Lihong Chang, Xiaoqing Liu, Paolo D'Avino, Manru Li, Ceren Biçer, Fatma Hacer Kurtoğlu Babayev, Raja Dhir, Kari C. Nadeau, Marie‐Charlotte Brüggen, Mubeccel Akdis, Cezmi A. Akdis   +17 more
wiley   +1 more source

Physical Parameters of 11,100 Short-period ASAS-SN Eclipsing Contact Binaries

The Astrophysical Journal Supplement Series
Starting from more than 11,200 short-period (less than 0.5 days) EW-type eclipsing binary candidates with the All-Sky Automated Survey for Supernovae V -band light curves, we use the Markov Chain Monte Carlo algorithm and neural networks to obtain the ...
Xu-Zhi Li, Qing-Feng Zhu, Xu Ding, Xiao-Hui Xu, Hang Zheng, Jin-Sheng Qiu, Ming-Chao Liu   +6 more
doaj   +1 more source

The SPHINX M-dwarf Spectral Grid. I. Benchmarking New Model Atmospheres to Derive Fundamental M-dwarf Properties

The Astrophysical Journal, 2023
About 70%–80% of stars in our solar and Galactic neighborhood are M dwarfs. They span a range of low masses and temperatures relative to solar-type stars, facilitating molecule formation throughout their atmospheres.
Aishwarya R. Iyer, Michael R. Line, Philip S. Muirhead, Jonathan J. Fortney, Ehsan Gharib-Nezhad   +4 more
doaj   +1 more source

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Photometric and Spectroscopic Analysis of Eight Totally Eclipsing Contact Binaries with Small Mass Ratios

The Astrophysical Journal
This paper selected eight totally eclipsing contact binaries for photometric and spectroscopic studies. Spectral data were analyzed by University of Lyon Spectroscopic analysis Software, and photometric data were analyzed using PHOEBE through Markov ...
Li-Heng Wang, Kai Li, Ya-Ni Guo, Jing-Yi Wang, Xiang Gao, Xing Gao, Guo-You Sun   +6 more
doaj   +1 more source

Fundamental parameters of massive stars [PDF]

, 2003
We discuss the determination of fundamental parameters of `normal' hot, massive OB-type stars, namely temperatures, luminosities, masses, gravities and surface abundances.
P. Crowther
semanticscholar   +1 more source

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

FEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

Half a Million M Dwarf Stars Characterized Using Domain-adapted Spectral Analysis

The Astrophysical Journal Supplement Series
We present fundamental atmospheric parameters ( T _eff and $\mathrm{log}\,g$ ) and metallicities ([M/H]) for 507,513 M dwarf stars using low-resolution spectra ( R  ∼ 1800) from LAMOST DR10.
Shuo Zhang, Hua-Wei Zhang, Yuan-Sen Ting, Rui Wang, Teaghan O’Briain, Hugh R. A. Jones, Derek Homeier, A-Li Luo   +7 more
doaj   +1 more source

An Eclipsing Binary Comprising Two Active Red Stragglers of Identical Mass and Synchronized Rotation: A Post-mass-transfer System or Just Born That Way?

The Astrophysical Journal, 2023
We report the discovery of 2M0056–08 as an equal-mass eclipsing binary (EB), comprising two red straggler stars (RSSs) with an orbital period of 33.9 days. Both stars have masses of ≈1.419 M _⊙ , identical to within 0.2%.
Keivan G. Stassun, Guillermo Torres, Marina Kounkel, Benjamin M. Tofflemire, Emily Leiner, Dax L. Feliz, Don M. Dixon, Robert D. Mathieu, Natalie Gosnell, Michael Gully-Santiago   +9 more
doaj   +1 more source

Single cis‐elements in brassinosteroid‐induced upregulated genes are insufficient to recruit both redox states of the BIL1/BZR1 DNA‐binding domain

FEBS Letters, EarlyView.
Phytohormone brassinosteroid‐induced gene regulation by the transcription factor BIL1/BZR1 involves redox‐dependent DNA‐binding alternation and interaction with the transcription factor PIF4. The reduced BIL1/BZR1 dimer binds preferred cis‐elements, while oxidation alters its oligomerization state and disrupts DNA‐binding ability.
Shohei Nosaki, Masae Ohtsuka, Takeshi Nakano, Masaru Tanokura, Takuya Miyakawa   +4 more
wiley   +1 more source