Results 21 to 30 of about 1,267,305 (324)

Predictive value of baseline metabolic tumor burden on 18F-FDG PET/CT for brain metastases in patients with locally advanced non-small-cell lung cancer

open access: yesFrontiers in Oncology, 2022
ObjectivesBrain metastases (BMs) are a major cause leading to the failure of treatment management for non-small-cell lung cancer (NSCLC) patients. The purpose of this study was to evaluate the predictive value of baseline metabolic tumor burden on 18F ...
Jingjie Shang   +9 more
doaj   +1 more source

Nicotinamide adenine dinucleotide reduced (NADH) is a natural UV filter of certain bird lens

open access: yesScientific Reports, 2022
In this work, we for the first time report the identification of UV filters in the bird eye lens. We found that lenses of some raptors (black kite, common buzzard) and waterfowl (birds from Podicipedidae family) contain unusually high levels of reduced ...
Nataliya A. Osik   +3 more
doaj   +1 more source

Usefulness of respiratory-gated PET acquisition during delayed 18F-FDG PET/CT scanning for patients with liver metastases [PDF]

open access: yesAsia Oceania Journal of Nuclear Medicine and Biology, 2021
Objective(s): To assess respiratory-gated (RG) positron emission tomography (PET) acquisition for patients with liver metastases during delayed PET/computed tomography (CT) scanning with fluorine-18-fluorodeoxyglucose (18F-FDG).Methods: Nineteen patients
Shota Watanabe   +6 more
doaj   +1 more source

Tomography for Improving the Design and Control of Particulate Processing Systems

open access: yesKONA Powder and Particle Journal, 2014
The ability to interrogate the dynamic internal characteristics of processing plants by using conventional instrumentation is severely limited for most practical conditions.
F.J. Dickin   +6 more
doaj   +1 more source

Non-contrast quantitative study of brain perfusion changes in multiple sclerosis [PDF]

open access: yesDigital Diagnostics
BACKGROUND: Non-contrast magnetic resonance perfusion can identify areas of cerebral perfusion changes in patients with multiple sclerosis, even in the absence of focal lesions [1]. This technique offers several advantages, including non-invasiveness [2]
Vladimir V. Popov   +3 more
doaj   +1 more source

Kinetic Studies of Antioxidant Properties of Ovothiol A

open access: yesAntioxidants, 2021
Ovothiol A (OSH) is one of the strongest natural antioxidants. So far, its presence was found in tissues of marine invertebrates, algae and fish. Due to very low pKa value of the SH group, under physiological conditions, this compound is almost entirely ...
Nataliya A. Osik   +2 more
doaj   +1 more source

Stability of ZIF-8 Nanoparticles in Most Common Cell Culture Media

open access: yesMolecules, 2022
Zeolite imidazolate framework-8 (ZIF-8) is a promising platform for drug delivery, and information regarding the stability of ZIF-8 nanoparticles in cell culture media is essential for proper interpretation of in vitro experimental results. In this work,
Anna S. Spitsyna   +8 more
doaj   +1 more source

Finite quantum tomography via semidefinite programming [PDF]

open access: yesInternational Journal of Theoretical Physics, Vol. 46, No. 6, June 2007, page 1471, 2007
Using the the convex semidefinite programming method and superoperator formalism we obtain the finite quantum tomography of some mixed quantum states such as: qudit tomography, N-qubit tomography, phase tomography and coherent spin state tomography, where that obtained results are in agreement with those of References \cite{schack,Pegg,Barnett,Buzek ...
arxiv   +1 more source

A case of crossed cerebellar diaschisis on follow-up positron emission tomography/computed tomography with (18F) fluoro-D-glucose after treatment for glioblastoma

open access: yesWorld Journal of Nuclear Medicine, 2019
Crossed cerebellar diaschisis (CCD) represents the reduction of blood flow, metabolism, and oxygen consumption in the cerebellar hemisphere contralateral to a cerebral focal lesion.
Dimitrios Priftakis   +2 more
doaj   +1 more source

Universal quantum data compression via gentle tomography [PDF]

open access: yesPhys. Rev. A 73, 032336 (2006), 2004
Quantum state tomography--the practice of estimating a quantum state by performing measurements on it--is useful in a variety of contexts. We introduce "gentle tomography" as a version of tomography that preserves the measured quantum data. As an application of gentle tomography, we describe a simple polynomial-time method for universal source coding.
arxiv   +1 more source

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