Results 71 to 80 of about 2,555,452 (339)

Polarization properties of X-ray millisecond pulsars

open access: yes, 2009
Radiation of X-ray bursts and of accretion shocks in weakly magnetized neutron stars in low-mass X-ray binaries is produced in plane-parallel atmospheres dominated by electron scattering.
Poutanen, Juri
core   +1 more source

Resonant Inelastic X-ray Scattering Studies of Elementary Excitations [PDF]

open access: yes, 2010
In the past decade, resonant inelastic x-ray scattering (RIXS) has made remarkable progress as a spectroscopic technique. This is a direct result of the availability of high-brilliance synchrotron x-ray radiation sources and of advanced photon detection ...
L. Ament   +4 more
semanticscholar   +1 more source

Resonant Carbon K-Edge Soft X-Ray Scattering from Lattice-Free Heliconical Molecular Ordering: Soft Dilative Elasticity of the Twist-Bend Liquid Crystal Phase. [PDF]

open access: yesPhysical Review Letters, 2015
Resonant x-ray scattering shows that the bulk structure of the twist-bend liquid crystal phase, recently discovered in bent molecular dimers, has spatial periodicity without electron density modulation, indicating a lattice-free heliconical nematic ...
Chenhui Zhu   +9 more
semanticscholar   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Varying Collimation for Dark-Field Extraction

open access: yesInternational Journal of Biomedical Imaging, 2009
Although x-ray imaging is widely used in biomedical applications, biological soft tissues have small density changes, leading to low contrast resolution for attenuation-based x-ray imaging. Over the past years, x-ray small-angle scattering was studied as
Ge Wang   +3 more
doaj   +1 more source

X-ray flares, plateaus, and chromatic breaks of GRB afterglows from up-scattered forward-shock emission [PDF]

open access: yes, 2007
Scattering of the forward-shock synchrotron emission by a relativistic outflow located behind the leading blast-wave may produce an X-ray emission brighter than that coming directly from the forward-shock and may explain four features displayed by Swift ...
A. Panaitescu   +37 more
core   +1 more source

Fluctuation X-ray scattering (FXS) and wide-angle X-ray scattering (WAXS) comparative study on malignant and benign human cancer cells and tissues under synchrotron radiation

open access: yes, 2018
Received: August 02, 2018; Accepted: August 17, 2018; Published: August 20, 2018 In the current study, we have experimentally and comparatively investigated and compared malignant human cancer cells and tissues before and after irradiating of synchrotron
A. Heidari
semanticscholar   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

The Structure of Amorphous and Deeply Supercooled Liquid Alumina

open access: yesFrontiers in Materials, 2019
Liquid Al2O3 has been supercooled more than 500 K below its melting point (Tm = 2,327 K) using aerodynamic levitation and laser heating techniques. High energy synchrotron x-ray measurements were performed over a temperature range of 1,817 ≤ T (K) ≤ 2 ...
Caijuan Shi   +10 more
doaj   +1 more source

Small–Angle X–Ray Scattering (SAXS) and Ultra–Small Angle X–Ray Scattering (USAXS) Comparative Study on Malignant and Benign Human Cancer Cells and Tissues under Synchrotron Radiation

open access: yes, 2018
In the current study, we have experimentally and comparatively investigated and compared malignant human cancer cells and tissues before and after irradiating of synchrotron radiation using Small–Angle X–Ray Scattering (SAXS) and Ultra–Small Angle X–Ray ...
A. Heidari
semanticscholar   +1 more source

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