Results 31 to 40 of about 523,530 (315)

Double-sided fresnel zone plates as high performance optics in X-ray microscopy [PDF]

, 2015
X-ray microscopy describes a range of analytical techniques, specialized for the characterization of organic and inorganic samples using high energy photons.
Mohácsi, István
core   +1 more source

X-ray phase-contrast computed tomography for full-breast mastectomy imaging at the Australian Synchrotron

, 2021
One of the imaging modalities offered by the Imaging and Medical Beamline (IMBL) at the Australian Synchrotron is Xray phase-contrast propagation-based computed tomography (PB-CT). The unique combination of high coherence and high brightness of radiation
Stevenson, Andrew W., Dimmock, Matthew, Hasermann, Daniel, Maksimenko, Anton, Lewis, Sarah (R21243), Nesterets, Yakov I., Taba, Seyedamir T., Quiney, Harry M., Hall, Christopher J., Thompson, Darren, Mayo, Sheridan C., Arhatari, Benedicta D., Brennan , Patrick C., Gureyev, Timur E.   +13 more
core   +1 more source

Generalized noise power spectrum modeling for robotic CT with arbitrary scan paths

Nuclear Engineering and Technology
The noise characteristics of cone-beam computed tomography (CBCT) systems with flat-panel detectors significantly affect the image quality and may limit defect detectability in industrial imaging applications.
Seungjun Yoo, Seokwon Oh, Junho Lee, Seongbon Park, Ho Kyung Kim   +4 more
doaj   +1 more source

EXOSAT x-ray imaging optics

Applied Optics, 1981
The European X-ray Observatory, EXOSAT, to be launched in 1981 will carry two Wolter I x-ray telescopes, each having a geometric area of ~100 cm(2). A qualification model of the Wolter I optics has been manufactured and extensively tested in optical and x-ray beams. The influence of manufacturing tolerances on the resolution of the optics is discussed,
Korte, P.A.J. de, Giralt, R., Coste, J.N., Ernu, C., Frindel, S., Flamand, J., Contet, J.J.   +6 more
openaire   +4 more sources

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

In-situ Analysis of Laminated Composite Materials by X-ray Micro-Computed Tomography and Digital Volume Correlation [PDF]

, 2013
The complex mechanical behaviour of composite materials, due to internal heterogeneity and multi-layered composition impose deeper studies. This paper presents an experimental investigation technique to perform volume kinematic measurements in composite ...
Dupré, J.C., Doumalin, Pascal, Germaneau, Arnaud, Brault, Romain, Fazzini, Marina, Brault, R., Doumalin, P., Mistou, Sébastien, Germaneau, A., Dupré, Jean-Christophe   +9 more
core   +1 more source

Echocardiography–X-Ray Image Fusion

JACC: Cardiovascular Imaging, 2016
An echocardiography X-ray fusion allows for superimposing of 2-dimensional (2D)/3-dimensional (3D) transesophageal echocardiography (TEE) images on a fluoroscopic screen. This approach aligns 2D/3D TEE images into an x-ray fluoroscopic coordinate system.
Faletra, Francesco F, Pedrazzini, Giovanni, Pasotti, Elena, Murzilli, Romina, Leo, Laura A, Moccetti, Tiziano   +5 more
openaire   +3 more sources

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Fresnel coherent diffractive imaging tomography of whole cells in capillaries

New Journal of Physics, 2014
X-ray tomography can be used to study the structure of whole cells in close to their native state. Ptychographic Fresnel coherent diffractive imaging (FCDI) holds particular promise for high-resolution tomographic imaging with quantitative phase ...
Mac B Luu, Grant A van Riessen, Brian Abbey, Michael W M Jones, Nicholas W Phillips, Kirstin Elgass, Mark D Junker, David J Vine, Ian McNulty, Guido Cadenazzi, Coralie Millet, Leann Tilley, Keith A Nugent, Andrew G Peele   +13 more
doaj   +1 more source

E2A selectively regulates TGF‐β–induced apoptosis in KRAS‐mutant non‐small cell lung cancer

Molecular Oncology, EarlyView.
Ability to induce apoptosis by TGF‐β is frequently lost in advanced lung adenocarcinoma despite intact TGF‐β signaling. We identify E2A as a mutant KRAS–dependent mediator of resistance to TGF‐β–induced apoptosis. TGF‐β induces E2A via SMAD3 in mutant KRAS cells, and E2A silencing restores apoptosis and enhances radiation response in cell lines ...
Sergei Chuikov, Shiva Krishna Katkam, Zhefan Wang, Venkateshwar G. Keshamouni   +3 more
wiley   +1 more source