Results 81 to 90 of about 83,891 (346)
Insect I‐Type Lysozymes Function as Antiviral Proteases by Forming Biomolecular Condensates
Advanced Science, EarlyView.Upon rice viral infection, the insect vector activates the Toll–MyD88–Dorsal signaling cascade, inducing i‐type lysozyme (Lyz‐I1) expression. Lyz‐I1 functions as an antiviral protease through its conserved catalytic dyad Glu/Asp (E/D), mediating cleavage of viral proteins at specific Lys (K) residues.
Yu Du +5 more
wiley +1 more source
A Mini-Review of Accreting Pulsating White Dwarfs
Frontiers in Astronomy and Space Sciences, 2021 The discovery in 1998 of a pulsating white dwarf in the cataclysmic variable GW Lib opened up a new avenue of exploration in the asteroseismology of white dwarfs.
Paula Szkody
doaj +1 more source
Discovery of New Ultracool White Dwarfs in the Sloan Digital Sky Survey
, 2004 We report the discovery of five very cool white dwarfs in the Sloan Digital Sky Survey (SDSS). Four are ultracool, exhibiting strong collision induced absorption (CIA) from molecular hydrogen and are similar in color to the three previously known coolest
Atsuko Nitta +17 more
core +2 more sources
White Dwarf Crystallization [PDF]
International Astronomical Union Colloquium, 1994 AbstractThe inclusion of a detailed treatment of solidification processes in the cooling theory of carbon–oxygen white dwarfs is of crucial importance for the determination of their luminosity function. Carbon–oxygen separation at crystallization yields delays larger than 2 Gyr to cool down to luminosities corresponding to the observed cut–off.
Enrique García-Berro, M. Hernanz
openaire +2 more sources
The Halo White Dwarf Population [PDF]
The Astrophysical Journal, 1998 29 pages (AASTeX), 7 eps figures included, accepted for publication in ...
Enrique García-Berro +4 more
openaire +3 more sources
Unraveling Alkali Ion Electron Donation for Enhancing Heterogeneous Catalytic Oxidation
Advanced Science, EarlyView.A new mechanistic pathway for potassium (K) ions as electron donors is identified by constructing single K ion chains confined within hexagonal WO3 tunnels. The as‐produced high‐electron‐density Kδ+ (0<δ<1) ions not only facilitate the formation of oxygen vacancies that behave classical electronic effect but, more importantly, also directly donate ...
Jin Wang +6 more
wiley +1 more source
Novel Atmospheric Dynamics Shape the Inner Edge of the Habitable Zone around White Dwarfs
The Astrophysical JournalWhite dwarfs offer a unique opportunity to search nearby stellar systems for signs of life, but the habitable zone around these stars is still poorly understood.
Ruizhi Zhan +2 more
doaj +1 more source
Advanced Energy Materials, EarlyView.This study provides mechanistic insights into ionic conduction in lead halide perovskites (LHPs) and perovskite‐inspired materials (PIMs). By comparing ionic conduction in PIMs with the well‐studied LHPs, correlations are established between ionic transport, anomalous device kinetics, and operational stability.
Ramesh Kumar +13 more
wiley +1 more source
Transit surveys for Earths in the habitable zones of white dwarfs
, 2011 To date the search for habitable Earth-like planets has primarily focused on nuclear burning stars. I propose that this search should be expanded to cool white dwarf stars that have expended their nuclear fuel. I define the continuously habitable zone of
Agol +30 more
core +1 more source
Le Journal de Physique Colloques, 1980 The thermal properties and neutrino emissivity of matter in the dense, degenerate cores of white dwarfs, together with efficient heat transport through the high-density envelopes of these stars, affect the theoretical white dwarf luminosity function.
openaire +1 more source