Results 91 to 100 of about 181,833 (294)

Case for an Improved Effective-Atomic-Number for the Electronic Baggage Scanning Program [PDF]

, 2011
Z{sub eff}, a parameter representing an 'effective atomic number' for a material, plays an important role in the Electronic Baggage Scanning Program (EBSP) to detect threats in dual-energy computed tomography (CT) baggage-scanning systems. We believe that Z{sub eff}, as defined and used on this program, does not provide the accurate representation of a
Smith, J. A., Martz, H. E., Kallman, J. S.   +2 more
openaire   +4 more sources

Effective atomic numbers and number, energy and dose albedos of different colored thermoplastic materials

, 2023
This study was carried out to determine some distinctive features of thermoplastic materials used in radiotherapy. In this work, effective atomic numbers and number, energy and dose albedos of different colored thermoplastic samples (white, light green ...
Kurucu, Yakup, Yılmaz, Demet, Gürol, Ali   +2 more
core   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Enhanced colour encoding of materials discrimination information for multiple view dual-energy x-ray imaging

, 2009
This thesis reports an investigation into dual-energy X-ray discrimination techniques. These techniques are designed to provide colour-coded materials discrimination information in a sequence of perspective images exhibiting sequential parallax.
Wang, X
core  

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Effective atomic number of composite materials for Compton effect in the gamma ray region 280–1115keV

, 2003
In this paper, we report the effective atomic number, Zeff, of composite materials for Compton effect in the gamma ray region 280–1115keV based on the theoretically obtained Klein–Nishina scattering cross sections in the angular range 50–100° as well as ...
Mallesh, K.S., Umesh, T. K., Mallesh, K. S., Sbaih, Mahmoud A. A., Ramachandran, G., T.K. Umesh, Nalini, K.B., Usha Devi, A.R., Sbaih, M.A.A., Usha Devi, A. R., Nalini, K. B., S. Prasanna Kumar, Kumar, S. Prasanna   +12 more
core   +1 more source

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

Molecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel, Peyman Zarrineh, Nathnael T. Tuffa, Jigar H. Sheth, Sumitra Mohan, Mudassar Iqbal, Sankari Nagarajan   +6 more
wiley   +1 more source

Calculation of the effective atomic number for the iodine contrast agent of the varying concentrations

, 2016
The author discusses the difficulties that arise with the determination of the concentration of the iodinated contrast agents in the blood stream via the traditional gray-scale computer tomography and searches for the new imaging modalities that would ...
Pen, Olga Vladimirovna
core  

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

A study on compatibility of experimental effective atomic numbers with those predicted by ZXCOM

Nuclear Science and Techniques, 2017
In this study, effective atomic numbers (Z eff) of materials determined at different experimental conditions by measuring the elastic-to-inelastic γ-ray scattering ratios are compared to ZXCOM predictions. It also presents the experimental data obtained via the transmission technique. The agreement and disagreement between ZXCOM
Eyecioglu, Onder, El-Khayatt, A. M., Karabul, Yasar, Icelli, Orhan   +3 more
openaire   +3 more sources