Results 51 to 60 of about 1,291,187 (318)

Quantitative Phase Analysis by X-ray Diffraction—Doping Methods and Applications

Crystals, 2020
X-ray powder diffraction is an ideal technique for the quantitative analysis of a multiphase sample. The intensities of diffraction lines of a phase in a multiphase sample are proportional to the phase fraction and the quantitative analysis can be ...
Stanko Popović
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

Biological Laboratory X-Ray Microscopy

, 2019
Zone-plate-based soft x-ray microscopes operating in the water window allow high-resolution and high-contrast imaging of intact cells in their near-native state.
Önfelt, Björn,, Carannante, Valentina,, Vogt, Ulrich,, Svenda, Martin,, Sellberg, Jonas A.,, Reddy, Hemanth K.N.,, Arsana, Komang G.Y.,, Reddy, Hemanth K. N.,, Hertz, Hans,, Arsana, Komang G. Y.,, Kördel, Mikael,, Hertz, Hans M.,, Fogelqvist, Emelie,   +12 more
core   +1 more source

X-ray Reflectometry and Related Surface Near X-ray Scattering Methods [PDF]

Zeitschrift für Physikalische Chemie, 2014
Abstract Surface sensitive X-ray scattering methods are mostly non-destructive tools which are frequently used to investigate the nature of thin films, interfaces and artificial near surface structures. Discussed here are diffraction based methods, namely reflectometry and the related techniques grazing incidence diffraction and crystal ...
openaire   +2 more sources

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 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

X-RAY METHODS OF DIAGNOSING THE ENDOPERIODONTITIS

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
Comparative analysis of the X-ray examination methods revealed the higher informational content of the cone-beam computed tomography up to 5,51±0,61% than the orthopantomography in the diagnosis of endoperiodontitis in patients aged 35-44 years with ...
Y. L. Denisova, N. I. Rosenik, L. A. Denisov   +2 more
doaj  

SAUNAS. I. Searching for Low Surface Brightness X-Ray Emission with Chandra/ACIS

The Astrophysical Journal
We present Selective Amplification of Ultra Noisy Astronomical Signal ( SAUNAS ), a pipeline designed for detecting diffuse X-ray emission in the data obtained with the Advanced CCD Imaging Spectrometer (ACIS) of the Chandra X-ray Observatory.
Alejandro S. Borlaff, Pamela M. Marcum, Mehmet Alpaslan, Pasquale Temi, Nushkia Chamba, Drew S. Chojnowski, Michael N. Fanelli, Anton M. Koekemoer, Seppo Laine, Enrique Lopez-Rodriguez, Aneta Siemiginowska   +10 more
doaj   +1 more source

Syntheses of Bi2X3 (X = S, Se, Te) from elements under hydrothermal conditions

Journal of Asian Ceramic Societies, 2014
Bismuth chalcogenides (Bi2X3, X = S, Se, Te) were synthesized from the elements under hydrothermal condition. Single phases of Bi2S3 and Bi2Se3 were produced at 240 °C. Bi2Te3 was obtained as an almost single phase with a small amount of Bi2TeO5.
Keitaro Tezuka, Saori Kase, Yue Jin Shan
doaj   +1 more source

Improvements of programing methods for finding reference lines on X-ray images [PDF]

Компьютерная оптика, 2019
The paper gives an overview of the algorithms developed to obtain reference lines and angles on X-ray images. These geometrical characteristics are used in the medical analysis of human joints.
Ammar Mudheher Sadeq Al-Temimi, Vladimir Pilidi   +1 more
doaj   +1 more source