Results 61 to 70 of about 1,704,527 (233)

Voxel anthropomorphic phantoms: Review of models used for ionising radiation dosimetry

, 2003
International audienceComputational anthropomorphic phantoms have k e n used since the 1970s for dosimetric calculations. Realistic geometries are required for this operation, resulting in the development of ever more accurate phantoms.
Clairand, I., de Carlan, L., Lemosquet, A.   +2 more
core   +1 more source

Agent‐Based Simulations of Lung Tumor Evolution Suggest That Ongoing Cell Competition Drives Realistic Clonal Expansions

Advanced Science, EarlyView.
Computational simulations of tumor evolution are increasingly used to infer the rules underlying cancer growth, with the goal of one day recommending tailored treatments. Here we show that the properties of lung cancer sequencing data are best replicated by a model which assumes that cells compete both to proliferate and survive. ABSTRACT Computational
Helena Coggan, James R. M. Black, Carlos Martínez‐Ruiz, Kristiana Grigoriadis, Jasmin Fisher, Nicholas McGranahan   +5 more
wiley   +1 more source

Computational Organ Dosimetry of 89Zr-Labeled hNd2 for Diagnostic PET Using ICRP Reference Phantoms

Science and Technology of Nuclear Installations
This computational study quantifies organ-specific absorbed doses for diagnostic PET with 89Zr-labeled hNd2 using ICRP adult male/female reference voxel phantoms and the MIRD/ICRP framework implemented in IDAC-Dose 2.1, cross-validated in WinAct 1.0 ...
Muneerah Almutairi, Shams A. M. Issa, Hesham M. H. Zakaly   +2 more
doaj   +1 more source

Internal dosimetry of non-uniform activity distributions: a simple method for the calculation of the absorbed dose distribution at voxel level in radionuclide therapy [PDF]

, 2013
Internal dosimetry of non-uniform activity distributions: a simple method for the calculation of the absorbed dose distribution at voxel level in radionulcide therapy Radiotherapy is the medical use of ionizing radiations to control or kill clonogenic ...
AVIGO, CINZIA
core  

Chromatin Packing Domain Engineering Through the Manipulation of Nuclear Cationic States

Advanced Science, EarlyView.
Manipulation of intranuclear divalent cation concentrations rapidly and reversibly remodels chromatin packing domains in living cells. Magnesium depletion disrupts domain compaction, heterochromatin organization, and transcriptional regulation, whereas magnesium loading promotes more compact and stable domains.
Cody L. Dunton, Carrillo Paola Gonzalez, Luay Almassalha, Wing Shun Li, Ruyi Gong, Nicolas Acosta, I Chae Ye, Jane Frederick, Christopher Hogg, Saira John, J. A. Gareth Williams, Rikkert J. Nap, Igal Szleifer, Vadim Backman   +13 more
wiley   +1 more source

VoxEL

, 2018
This dataset has manual annotations with respect to Wikipedia over the same text written in five languages: German (de), English (en), Spanish (es), French (fr) and Italian (it).
Aidan Hogan (5068403), Henry Rosales Méndez (5068400), Barbara Poblete (3589784)   +2 more
core   +1 more source

Deep‐Learning‐Driven High‐Fidelity In Vivo Hyperspectral Fluorescence Imaging Under Extreme Photon‐Limited Conditions

Advanced Science, EarlyView.
Highly overlapping fluorescent signals become distinguishable in photon‐limited living organisms via advanced imaging with intelligent reconstruction. The resulting in vivo hyperspectral imaging capability reveals nanoplastic uptake and circulation in live zebrafish, providing a new approach for studying complex biological and environmental processes ...
Renjian Li, Shutao Wu, Kaixiang Li, Zhenyu An, Yuwen Ben, Guiye LI, Sunil Kumar, James Mcginty, Tawfique Hasan, Songnian Fu, Meng Zhang, LingLing Chen   +11 more
wiley   +1 more source

A novel method for harmonization of PET image spatial resolution without phantoms

EJNMMI Physics
Background Estimation of the spatial resolution in real images is extremely important in several fields, including crystallography, optics, microscopy, and tomography. In human PET imaging, estimating spatial resolution typically involves the acquisition
Felix Carbonell, Alex P. Zijdenbos, Evan Hempel, Mihály Hajós, Barry J. Bedell   +4 more
doaj   +1 more source

The ICRP/ICRU adult reference computational phantoms.

, 2009
Computational models of the human body have been used together with radiation transport codes for the evaluation of organ dose conversion coefficients in occupational, medical and environmental radiation protection.
Zankl, M.
core  

False positives in neuroimaging genetics using voxel-based morphometry data [PDF]

, 2011
Voxel-wise statistical inference is commonly used to identify significant experimental effects or group differences in both functional and structural studies of the living brain.
Alzheimer's Disease Neuroimaging Initiative, Silver, Matt, Montana, Giovanni, Nichols, Thomas E, Matt Silver, Thomas E. Nichols, Giovanni Montana, Nichols, Thomas E.   +7 more
core   +1 more source