Results 61 to 70 of about 1,110,290 (291)

Perovskite-Based X-ray Detectors

open access: yesNanomaterials, 2023
X-ray detection has widespread applications in medical diagnosis, non-destructive industrial radiography and safety inspection, and especially, medical diagnosis realized by medical X-ray detectors is presenting an increasing demand. Perovskite materials
Chen-Fu Lin   +5 more
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

The return of the bursts: Thermonuclear flashes from Circinus X-1 [PDF]

open access: yes, 1994
We report the detection of 15 X-ray bursts with RXTE and Swift observations of the peculiar X-ray binary Circinus X-1 during its May 2010 X-ray re-brightening.
A Sergeev   +28 more
core   +6 more sources

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Flexible X‐Ray Detector for Cumulative Dose Monitoring Through Reversible Photochromism and Luminescence Modulation

open access: yesAdvanced Science
This study presents a multi‐mode X‐ray detection and imaging strategy by integrating photochromism, photoluminescence, and radioluminescence into Tb3+‐doped CaAl2Si2O8.
Xue Bai   +11 more
doaj   +1 more source

The X-ray emission from Young Stellar Objects in the rho Ophiuchi cloud core as seen by XMM-Newton

open access: yes, 2004
We observed the main core F of the rho Ophiuchi cloud, an active star-forming region located at ~140 pc, using XMM-Newton with an exposure of 33 ks. We detect 87 X-ray sources within the 30' diameter field-of-view of the it EPIC imaging detector array ...
Allende Prieto   +42 more
core   +7 more sources

Unambiguous Detection of Reflection in Magnetic Cataclysmic Variables: Joint NuSTAR-XMM-Newton Observations of Three Intermediate Polars [PDF]

open access: yes, 2015
In magnetic cataclysmic variables (CVs), X-ray emission regions are located close to the white dwarf surface, which is expected to reflect a significant fraction of intrinsic X-rays above 10 keV, producing a Compton reflection hump. However, up to now, a
Bernardini, Federico   +3 more
core   +3 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

A Review on Millimeter‐Thickness Polycrystalline Perovskite for High‐Performance Direct X‐Ray Detection

open access: yesAdvanced Sensor Research
Metal halide perovskites (MHPs) have been proven to have excellent direct X‐ray detection properties due to their high carrier lifetime product, strong X‐ray absorption ability, a low electron‐hole pair creation energy, and excellent charge transport ...
Yanshuang Ba   +11 more
doaj   +1 more source

Detecting fluorescent dark matter with X-ray lasers [PDF]

open access: yesThe European Physical Journal C, 2018
Fluorescent dark matter has been suggested as a possible explanation of both the 3.5 keV excess in the diffuse emission of the Perseus Cluster and of the deficit at the same energy in the central active galaxy within that cluster, NGC 1275. In this work we point out that such a dark matter candidate can be searched for at the new X-ray laser facilities
Day, Francesca, Fairbairn, Malcolm
openaire   +5 more sources

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