Results 51 to 60 of about 1,757 (195)

Alkylthienyl Side Groups in Conjugated Polymers Enable Localization of π Electron Density and Facilitate Efficient Hole Transfer

Advanced Science, EarlyView.
Resonance Raman spectroscopy is used in combination with other spectroscopic and morphology characterization techniques to unveil the mechanistic origin of the shift in synthetic strategy to alkylthienyl peripheral groups for high‐performing organic photovoltaics.
Hristo Ivov Gonev, Daniel G. Congrave, Junjun Guo, Jose Marin‐Beloqui, Max Allen, David Bacon, Ankita Kumari, Mohammad Saeed Shadabroo, He Zhu, Dibyajyoti Ghosh, Rachel C. Kilbride, Safa Shoaee, Hugo Bronstein, Tracey M. Clarke   +13 more
wiley   +1 more source

Abundance Measurements of the Metal-poor M Subdwarf LHS 174 Using High-resolution Optical Spectroscopy

The Astronomical Journal
Metal-poor M subdwarfs are among the oldest stellar populations and carry valuable information about the chemical enrichment history of the Milky Way. The measurements of chemical abundances of these stars therefore provide essential insights into the ...
Neda Hejazi, Sébastien Lépine, Thomas Nordlander, Wei-Chun Jao, David R. Coria, Kathryn V. Lester   +5 more
doaj   +1 more source

The theoretical instability strip of M dwarf stars [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
The overstability of the fundamental radial mode in M dwarf models was theoretically predicted by Rodr guez-L pez et al. (2012). The periods were found to be in the ranges ~25-40 min and ~4-8 h, depending on stellar age and excitation mechanism. We have extended our initial M dwarf model grid in mass, metallicity, and mixing length parameter. We have
Rodríguez-López, Cristina, MacDonald, J, Amado, Pedro J., Moya, A., Mullan, D.   +4 more
openaire   +3 more sources

TOGR3, a Proteasome β4 Subunit, Orchestrates Sugar Homeostasis to Trade Off Growth and Thermotolerance in Rice

Advanced Science, EarlyView.
This study identifies a novel thermoregulatory mechanism in rice: TOGR3 partners with 26S proteasome subunits, including TT1, to drive thermoresponsive ubiquitin–proteasome activity, maintaining sugar homeostasis in stomatal regulation to balance growth and stress resistance.
Biyao Zhang, Xiaoyan Wu, Ting Xu, Feifei Guo, Xiaolu Shen, Cuiping Meng, Yanan Wang, Xue Han, Hong Zhao, Yongbiao Xue   +9 more
wiley   +1 more source

In the Quest for Pulsation in Main-sequence M Dwarf Stars from TESS Observations

The Astrophysical Journal
We report the results of an extensive survey in the quest for pulsation signatures in main-sequence M dwarf stars, based on observations acquired by the TESS space mission.
R. G. S. B. De Amorim, B. L. Canto Martins, D. O. Fontinele, R. L. Gomes, I. C. Leão, J. R. De Medeiros   +5 more
doaj   +1 more source

Coronal X-Ray Emission from Nearby, Low-mass, Exoplanet Host Stars Observed by the MUSCLES and Mega-MUSCLES HST Treasury Survey Projects

The Astronomical Journal, 2023
The high-energy X-ray and ultraviolet (UV) radiation fields of exoplanet host stars play a crucial role in controlling the atmospheric conditions and the potential habitability of exoplanets.
Alexander Brown, P. Christian Schneider, Kevin France, Cynthia S. Froning, Allison A. Youngblood, David J. Wilson, R. O. Parke Loyd, J. Sebastian Pineda, Girish M. Duvvuri, Adam F. Kowalski, Zachory K. Berta-Thompson   +10 more
doaj   +1 more source

Enhancing Binding by Electron Transfer at Heterointerfaces of Biochar‐Modified Hydrogel to Improve Utilization Efficiency of Wastewater Recovered Nutrients

Advanced Science, EarlyView.
Enhancing the utilization efficiency of nutrients recovered from wastewater is achieved through hydrogel modification by biochar. The strategy improves nutrient binding to hydrogels via electron transfer at heterointerfaces, thereby reducing nutrient release rate.
Hao Hu, Juncong Zou, Chenglin Zhang, Peng Li, Junnan Li, Yen Wah Tong, Jun Li, Yiliang He   +7 more
wiley   +1 more source

The MUSCLES Extension for Atmospheric Transmission Spectroscopy: Spectral Energy Distributions for 20 Exoplanet Host Stars that JWST Observed in Cycle 1

The Astronomical Journal
Correctly interpreting JWST spectra of close-in exoplanets requires a measurement of the X-ray and ultraviolet light that the planets receive from their host stars.
David J. Wilson, Allison Youngblood, Girish M. Duvvuri, Kevin France, P. Christian Schneider, Alexander Brown, Isabella Longo, Cynthia S. Froning, Jacob L. Bean, J. Sebastian Pineda, Eliza M.-R. Kempton, Yamila Miguel, Thomas M. Evans-Soma, Zachory Berta-Thompson   +13 more
doaj   +1 more source

M Dwarfs fromHubble Space TelescopeStar Counts. IV. [PDF]

The Astrophysical Journal, 2001
We study a sample of about 1400 disk M dwarfs that are found in 148 fields observed with the Wide Field Camera 2 (WFC2) on the Hubble Space Telescope and 162 fields observed with pre-repair Planetary Camera 1 (PC1), of which 95 of the WFC2 fields are newly analyzed.
Zheng, Zheng, Flynn, Chris, Gould, Andrew, Bahcall, John N., Salim, Samir   +4 more
openaire   +3 more sources

Parasitic Plant–Host Interactions: Molecular Mechanisms and Agricultural Resistance Strategies

Advanced Science, EarlyView.
Parasitic plants devastate global agriculture through sophisticated molecular interactions with host crops. This review synthesizes current understanding of parasitic plant‐host interactions, from strigolactone‐mediated germination and haustorium formation to host defense mechanisms.
Jiayang Shi, Qi Xie, Feifei Yu
wiley   +1 more source