Results 41 to 50 of about 5,290,731 (274)

Multi-beam X-ray ptychography using coded probes for rapid non-destructive high resolution imaging of extended samples

Scientific Reports, 2022
Imaging large areas of a sample non-destructively and with high resolution is of great interest for both science and industry. For scanning coherent X-ray diffraction microscopy, i. e., ptychography, the achievable scan area at a given spatial resolution
Mikhail Lyubomirskiy, Felix Wittwer, Maik Kahnt, Frieder Koch, Adam Kubec, Ken Vidar Falch, Jan Garrevoet, Martin Seyrich, Christian David, Christian G. Schroer   +9 more
doaj   +1 more source

Oxygen K-edge X-ray Absorption Spectra

Chemical Reviews, 2020
We review oxygen K-edge X-ray absorption spectra of both molecules and solids. We start with an overview of the main experimental aspects of oxygen K-edge X-ray absorption measurements including X-ray sources, monochromators, and detection schemes.
F. Frati, M. Hunault, F. D. de Groot
semanticscholar   +1 more source

A Compact X-ray Source and Possible X-ray Jets within the Planetary Nebula Menzel 3 [PDF]

, 2003
We report the discovery, by the Chandra X-ray Observatory, of X-ray emission from the bipolar planetary nebula Menzel 3. In Chandra CCD imaging, Mz 3 displays hot (3-6x10^6 K) gas within its twin, coaxial bubbles of optical nebulosity, as well as a ...
Adam Frank, Bruce Balick, Eric G. Blackman, Garcia-Segura G., Guerrero M. A., Jingqiang Li, Joel H. Kastner, Kingsburgh R. L., Lopez J. A., Noam Soker, Saeqa D. Vrtlek   +10 more
core   +3 more sources

Cerebrospinal Fluid Liquid Biopsy Enables Targeted Therapy Without Tissue Diagnosis in Pediatric Low‐Grade Gliomas With BRAF V600E Mutation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT We present two pediatric cases of pediatric low‐grade gliomas (PLGG) with BRAF V600E mutations diagnosed and monitored using cerebrospinal fluid (CSF) liquid biopsy analyzed via digital droplet PCR (ddPCR), without tissue biopsy. Both patients were treated with dabrafenib and trametinib and monitored through clinical assessments, magnetic ...
Hannah Sultan, Damien Faury, Alexander G. Weil, Harrison J. Westwick, Nada Jabado, Sébastien Perreault   +5 more
wiley   +1 more source

X-ray beam diagnostics at the MID instrument of the European X-ray Free-Electron Laser Facility

Journal of Synchrotron Radiation
The Materials Imaging and Dynamics (MID) instrument at the European X-ray Free-Electron Laser Facility (EuXFEL) is equipped with a multipurpose diagnostic end-station (DES) at the end of the instrument.
Ulrike Boesenberg, Gabriele Ansaldi, Alexander Bartmann, Lewis Batchelor, Felix Brausse, Jörg Hallmann, Wonhyuk Jo, Chan Kim, Birthe Klein, Iker Lobato, Wei Lu, Johannes Möller, Ilia Petrov, Angel Rodriguez-Fernandez, Andreas Schmidt, Markus Scholz, Roman Shayduk, Konstantin Sukharnikov, Alexey Zozulya, Anders Madsen   +19 more
doaj   +1 more source

Evaluation of methods for 3D imaging and analysis of vascularisation in biopreparations

Current Directions in Biomedical Engineering, 2022
Motivation: Within the field of bio-implants one topic deals with the in-vitro production of 3D tissues from cell cultures. A major challenge in the cultivation of biopreparations is the imitation of the vascular system with its surrounding tissue ...
Zöller Nora, Franke Lisa, Claussen Joelle, Gerth Stefan, Rauh Cornelia, Radlanski Ralf J., Hiller Karl-Heinz, Hildenbrand Markus F., Wittenberg Thomas, Hufnagel Eva   +9 more
doaj   +1 more source

X-ray sources as tracers of the large-scale structure in the Universe

, 2000
We review the current status of studies of large-scale structure in the X-ray Universe. After motivating the use X-rays for cosmological purposes, we discuss the various approaches used on different angular scales including X-ray background multipoles ...
Barcons, X., Carrera, F. J., Ceballos, M. T., Mateos, S.   +3 more
core   +2 more sources

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed, Raquel Revuelta Iniesta, Mary Fewtrell, Julie Lanigan, Breeana Gardiner, Graeme O'Connor   +5 more
wiley   +1 more source

Microsecond hydrodynamic interactions in dense colloidal dispersions probed at the European XFEL

IUCrJ, 2021
Many soft-matter systems are composed of macromolecules or nanoparticles suspended in water. The characteristic times at intrinsic length scales of a few nanometres fall therefore in the microsecond and sub-microsecond time regimes.
Francesco Dallari, Avni Jain, Marcin Sikorski, Johannes Möller, Richard Bean, Ulrike Boesenberg, Lara Frenzel, Claudia Goy, Jörg Hallmann, Yoonhee Kim, Irina Lokteva, Verena Markmann, Grant Mills, Angel Rodriguez-Fernandez, Wojciech Roseker, Markus Scholz, Roman Shayduk, Patrik Vagovic, Michael Walther, Fabian Westermeier, Anders Madsen, Adrian P. Mancuso, Gerhard Grübel, Felix Lehmkühler   +23 more
doaj   +1 more source

X-ray luminescence computed tomography using a focused X-ray beam

, 2017
Due to the low X-ray photon utilization efficiency and low measurement sensitivity of the electron multiplying charge coupled device (EMCCD) camera setup, the collimator based narrow beam X-ray luminescence computed tomography (XLCT) usually requires a ...
Li, Changqing, Lun, Michael C, Nguyen, Alex Anh-Tu, Zhang, Wei   +3 more
core   +2 more sources