Results 121 to 130 of about 408,744 (292)
The Astrophysical JournalWe present a pilot method to estimate the high-mass initial mass function (IMF) across the arm, interarm, and spur regions in galaxies and apply it to NGC 628.
S Amrutha, Mousumi Das
doaj +1 more source
Advanced Science, EarlyView.Boronic acid‐based fluorescent hybrids have been used as part of a versatile platform for real‐time metabolic bioimaging across cellular and organismal scales. Including glucose‐responsive imaging in living cells and in an insulin‐deficient vertebrate model, this work opens new opportunities for the development of precision diagnostics, metabolic ...
Haobo Ge +13 more
wiley +1 more source
Advanced Science, EarlyView.Based on the anionic Hofmeister effect, a universal strategy of incorporation of stereo‐π anion BPh4− into a series of Cy5 skeletons to unlock long‐lived charge‐separated states was reported, wherein the weak electronic coupling and low charge recombination driving force hinder the charge recombination process, elevating the oxygen‐independent ROS ...
Xuan Zhao +9 more
wiley +1 more source
Advanced Science, EarlyView.We use lysine‐to‐glutamine mutations to study the effect of electrostatics on the kinetics and thermodynamics of alpha‐synuclein amyloid fibril formation. We find that mutational effects map on their structural context within fibrils and identify residues that modulate the energy landscape of alpha‐synuclein self‐assembly. Our work outlines a scalable,
Antonin Kunka +10 more
wiley +1 more source
Reversible, Chemically Gated FRET via Ligand‐Activated Acceptors
Advanced Science, EarlyView.Fluorogen binding turns the compact FAST tag into a tunable FRET acceptor, with ligand chemistry programming spectral overlap and excited‐state lifetimes. Fluorescence‐lifetime imaging reads out energy transfer through the shortened donor lifetime, while simply adding or washing out the dye switches FRET on and off, reversibly mapping the supramodular ...
Nivedita Singh +7 more
wiley +1 more source
Anomalous Dips in Extinction Spectra of Disordered Carbon Grains
, 1988 Ultraviolet extinction spectra of spongy agglomerates of amorphous carbon grains have been measured in the spectral range 100-300 nm. These spectra present two dips which can be explained in terms of harmonic resonant modes of electromagnetic waves in a ...
A. MINAFRA +2 more
core +1 more source
Advanced Science, EarlyView.A novel B2‐ordered Ti‐Zr‐V‐Al medium‐entropy intermetallic is developed through controlled metastability engineering, which activates an ordered TRIP effect via a new B2→D019‐α2 transformation with a distinctive {0001}α2//{110}B2, <11‐20>α2//<100>B2 orientation relationship. This alloy achieves an elongation of ∼7%, a strength of ∼1.1 GPa, and superior
Chaohua Li +8 more
wiley +1 more source
The Astrophysical JournalBy analyzing the spectral energy distributions (SEDs) of resolved stars in nearby galaxies, we can constrain their stellar properties and line-of-sight dust extinction.
Christina W. Lindberg +16 more
doaj +1 more source
Extinction of ultraviolet-A, visible and near-infrared wavelength light in snow and antarctic sea ice [PDF]
, 1994 Dissertation (Ph.D.) University of Alaska Fairbanks, 1994The optical properties of sea ice are important in the understanding of sea ice thermodynamics, growth and decay processes, polar climates, and remote sensing.
Quakenbush, Timothy Kyle
core
Advanced Science, EarlyView.A light‐activated catheter insert combines antimicrobial blue light with nitric oxide release to generate complementary oxidative and nitrosative stress, producing potent broad‐spectrum antimicrobial activity. The approach achieves greater than 4‐log reductions in bacterial and fungal viability and significantly reduces Staphylococcus aureus ...
Alexander Bruckmann +7 more
wiley +1 more source