Results 141 to 150 of about 614,140 (290)

Direct Determination of Neutron Capture Relevant to the s-process of 127I and 133Cs at the CSNS Back-n Facility

open access: yesThe Astrophysical Journal Supplement Series
The cross sections of ^127 I( n , γ ) ^128 I and ^133 Cs( n , γ ) ^134 Cs play a critical role in the s -process of nuclear astrophysics, the iodine–xenon chronometer on early meteorite evolution, and understanding the performance of CsI crystal ...
Ting Liu   +15 more
doaj   +1 more source

Tau Aggregate Imaging and Transcriptomics of Alzheimer's Disease Brain at Different Stages of Disease

open access: yesAdvanced Science, EarlyView.
The protein aggregates and gene expression in the middle temporal gyrus (MTG) and somatosensory cortex (SOM) of the postmortem brains of 13 Alzheimer's disease patients were studied in detail, revealing that small hyperphosphorylated tau aggregates increase with Braak stage driven by microglial inflammation.
Elizabeth A. English   +9 more
wiley   +1 more source

Development of a mercuric iodide solid state spectrometer for X-ray astronomy [PDF]

open access: yes, 1983
Mercuric iodide detectors, experimental development for astronomical use, X ray observations of the 1980 Cygnus X-1 High State, astronomical had X ray detectors in current use, detector development, balloon flight of large area (1500 sq cm) Phoswich ...
Vallerga, J.
core  

Space Jam‐Ming: Generating Interstitial Space Using Fragmented Granular GelMA to Investigate Novel Paradigms of Cancer Metastasis

open access: yesAdvanced Science, EarlyView.
Microgels enable independent control of stiffness and interstitial space, overcoming limitations of conventional 3D hydrogels. Using fragmented gelatin methacryloyl microgels, we show that stiffness does not restrict non‐metastatic breast cancer growth, contrary to bulk hydrogels, and reveal the role of adherent‐to‐suspension transition in cancer ...
Danielle Vahala   +15 more
wiley   +1 more source

Long wavelength photoconductive detectors for airborne and orbital infrared astronomy [PDF]

open access: yes, 1983
Seven gallium doped germanium (Ge:Ga) photoconductive infrared detectors were fabricated and mounted in integrating cavities. In addition, a cold preamplifier package consisting of J230 junction field effect transistors (JFETs) was produced. Tests of the
Houck, J. R.
core  

Axial gravitational quasi-normal modes of spherically symmetric black hole in f(R) gravity and its optical appearance

open access: yesEuropean Physical Journal C: Particles and Fields
This paper investigates the axial gravitational perturbations originating from spherically symmetric black holes in f(R) gravity, along with the optical appearance of such a black hole.
Tongzheng Wang   +3 more
doaj   +1 more source

Characterization of the parameters of an infrared astronomical detector. Application in EMIR

open access: yes, 2021
Este trabajo presenta y examina las caracter´ısticas de un detector para observaciones astron´omicas que opera en el rango infrarrojo. Este detector forma parte de un instrumento situado en el Gran telescopio de Canarias (GTC) en el observatorio de El Roque de Los Muchachos, en la isla de La Palma.
openaire   +1 more source

WGM Single‐Molecule Validation of pH‐Dependent Molecular Energetics at Gold Nanointerfaces: Influence of Buffer Molecules on Glyphosate Ligand Binding

open access: yesAdvanced Science, EarlyView.
Single‐molecule optical sensing reveals how pH and buffer molecules regulate glyphosate interactions with gold nanorods. Combined experiments and theoretical calculations show that changes in molecular charge and competition from buffer species determine whether glyphosate binds transiently or persistently.
Kulathunga Mudalige Kalani Perera   +3 more
wiley   +1 more source

Nonlinear Quantum Effects Drive Grotthuss Proton Conduction in Structured Electrolytes Based on Deep Eutectic Solvents

open access: yesAdvanced Science, EarlyView.
We demonstrate that the inverse relationship between viscosity and conductivity in structured electrolytes can be circumvented by leveraging their hydrogen bonding networks for Grotthuss proton transport. Using a mixture of imidazole and levulinic acid, we show that the existence of extended hydrogen‐bonded chains that can rapidly reorient result in ...
Benworth B. Hansen   +15 more
wiley   +1 more source

Generative AI‐Enabled Discovery and Experimental Demonstration of Ultra‐Broadband Epsilon‐Near‐Zero Perfect Absorbers

open access: yesAdvanced Science, EarlyView.
Researchers developed and applied a generative artificial intelligence (AI) model to optimize epsilon‐near‐zero thin film stacks for ultra‐broadband perfect absorption of light. The fabricated AI‐designed absorber, with a total thickness of only 160 nm, experimentally demonstrated an absorption bandwidth exceeding 1000 nm while maintaining greater than
David Dang   +10 more
wiley   +1 more source

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