Results 101 to 110 of about 558,215 (330)
Early Detection of Cell Death Using Transmembrane Water Exchange Magnetic Resonance Imaging
Advanced Science, EarlyView.Cell death is important in both the development and treatment of cancer. In this study, it is demonstrated for the first time that a specific measurement of the transmembrane water exchange rate using magnetic resonance imaging can be used as an early marker of cell death in mammalian cells, in animals and in human patients. Abstract Cell death plays a
Athanasia Kaika +22 more
wiley +1 more source
Физика волновых процессов и радиотехнические системы, 2014 The reasons of angular photon distribution occurrence at electron-positron annihilation are considered. It is shown, that angular photon distribution is consequence of Dopplers effect in the reference frame of the electron and positron mass center.
A.N. Volobuev, T.A. Antipova
doaj
Regulation of Returns to Transportation Agencies [PDF]
, 1959 An experiment on Cosmic rays performed by Carl D Anderson led to the accidental discovery of the positron in 1932. The discovery was a turning point in particle physics which led to numerous other theories and has been discussed by scientists all over ...
Lawncizak, Alexander, Åsbrink, Victor
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Recent Advances in Electron and Positron Sources
, 2000 Recent advances in electron and positron sources have resulted in new capabilities driven in most cases by the increasing demands of advanced accelerating systems. Electron sources for brighter beams and for high average-current beams are described.
Clendenin, J. E.
core +1 more source
Global brain asymmetries in regional cerebral blood flow (rCBF) observed during resting conditions with positron emission tomography (PET): Establishing a baseline for experiments on brain asymmetries and complex sounds in the CNS Project [PDF]
, 1989 Judith L. Lauter, Elena Plante
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Fluorinated Carnitine Derivatives as Tools to Visualise Carnitine Transport and Metabolism
Advanced Science, EarlyView.Fluorinated carnitines, fluoromethyl carnitine (FMC) and [18F]fluoromethyl carnitine ([18F]FMC), are synthesised and established as powerful probes to interrogate carnitine biology. The multimodal detection facilitated by fluorine labelling, including 19F NMR, mass spectrometry, and positron emission tomography imaging, allowed for visualisation of ...
Richard S. Edwards +8 more
wiley +1 more source
Polarization and Forward Scattering Effects in Low Energy Positron Collisions with H2
HydrogenPositron physical-chemistry has been one important focus of scientific investigation of the last decades, however their low energy scattering by atoms and molecules still offers many questions to be answered, as the low angle scattering effects on the ...
Wagner Tenfen +4 more
doaj +1 more source
PAMELA Positron Excess as a Signal from the Hidden Sector
, 2009 The recent positron excess observed in the PAMELA satellite experiment strengthens previous experimental findings. We give here an analysis of this excess in the framework of the Stueckelberg extension of the standard model which includes an extra $U(1 ...
C. R. Chen +5 more
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Advanced Science, EarlyView.Protease‐activated plasmonic nanosensors are demonstrated to noninvasively monitor antitumor T cell activity in tumors with anatomical information upon adoptive T cell transfer via ultrasound‐guided photoacoustic imaging. These nanosensors are actuated by granzyme B, a protease secreted by activated cytotoxic T cells during tumor cell killing, which ...
Myeongsoo Kim +10 more
wiley +1 more source
Cancer Reports, EarlyView., 2023 Abstract Background A methodology to assess the immune microenvironment (IME) of non‐small cell lung cancer (NSCLC) has not been established, and the prognostic impact of IME factors is not yet clear. Aims This study aimed to assess the IME factors and evaluate their prognostic values. Methods and Results We assessed CD8+ tumor‐infiltrating lymphocyte (
Yukihiro Terada +16 more
wiley +1 more source