Results 31 to 40 of about 383,199 (293)
Galactic Structure and Radioactivity Source Distributions [PDF]
, 2001 A probable sky map of the emission from a short-lived isotrope produced by massive stars is presented. The model is based on the nonaxisymmetric component of a dust distribution model developed to reproduce Galactic FIR emission. Features seen in COMPTEL
Drimmel +9 more
core +3 more sources
Generation of nanoparticles in the concentrated energy (laser beam) and gas flow
Aviation, 2004 The method of generation and selection of small nanoparticles in the airflow is considered in this paper. To melt the material (stainless steel), a concentrated energy flow – a pulsed solid‐state laser beam – was used.
Arūnas Severas Amulevičius +3 more
doaj +1 more source
Time changes of dose equivalent rate above the soil surface as indication of natural attenuation processes [PDF]
Proceedings of the International Association of Hydrological Sciences, 2019 Eight sites in the Fukushima contaminated area were surveyed for long-term changes in D-shuttle dose equivalent rate above the soil surface during 2015–2017. D-shuttle readings in most cases decreased faster than if due to radioactive decay only.
A. V. Konoplev +2 more
doaj +1 more source
Effect of an extract of Centella asiatica on the biodistribution of sodium pertechnetate (Na99mTcO4) and on the fixation of radioactivity on blood constituents [PDF]
, 2008 This study evaluates the effects of an acute treatment with a Centella asiatica (CA) extract on the biodistribution of the radiopharmaceutical Na99mTcO4 and on the fixation of technetium-99m on blood constituents. Wistar rats were treated with CA extract
Adenilson de Souza da Fonseca +22 more
core +4 more sources
The neglected activation of tantalum in reduced activation materials
Nuclear Materials and Energy, 2023 Due to the expression of “reduced activation”, the severe radioactivity of tantalum (Ta) after neutron irradiation in early decay years is easily neglected. In the presented study, after an irradiation of only 0.3 dpa by fission neutron and followed by a
Lei Zhang +11 more
doaj +1 more source
Spectroscopy of $^{18}$Na: Bridging the two-proton radioactivity of $^{19}$Mg
, 2011 The unbound nucleus $^{18}$Na, the intermediate nucleus in the two-proton radioactivity of $^{19}$Mg, was studied by the measurement of the resonant elastic scattering reaction $^{17}$Ne(p,$^{17}$Ne)p performed at 4 A.MeV. Spectroscopic properties of the
A. Lefebvre-Schuhl +61 more
core +3 more sources
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Journal of Economic Geology, 2021 Introduction The Neyshabour Turquoise Mine is located at 55 km North West of Neyshabour in latitude of E58◦, 23ꞌꞌ and longitude of N36◦, 23ꞌꞌ. This area is situated at the Cenozoic continental magmatic arc in the north of Sabzevar ophiolite sequence and
Alireza Mazloumi Bajestani, Akram Fahim
doaj +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source