Results 31 to 40 of about 11,524,538 (332)

Natural radioactivity distribution and gamma radiation exposure of beach sands from Sithonia Peninsula

, 2014
This study aims to evaluate the activity concentrations of 238U, 226Ra, 232Th, 228Th and 40K along the beaches of Sithonia Peninsula which are adjacent to the rock-types of the Sithonia Plutonic Complex.
A. Papadopoulos, G. Christofides, A. Koroneos, S. Stoulos   +3 more
semanticscholar   +1 more source

REMdb as a framework for collaborations in environmental radioactivity research [PDF]

, 2017
Under the terms of Article 36 of the Euratom Treaty, European Union Member States (MSs) shall periodically communicate to the European Commission (EC) information on environmental radioactivity levels.
Djurdjevic, Vladimir, Sarvan, Darko, Tollefsen, Tore, BRATTICH, ERIKA, Hernández Ceballos, Miguel Angel, Cinelli, Giorgia, Ajtić, Jelena   +6 more
core   +1 more source

Evaluation of distribution coefficients and concentration ratios of 90Sr and 137Cs in the Techa River and the Miass River

, 2016
Empirical data on the behavior of radionuclides in aquatic ecosystems are needed for radioecological modeling, which is commonly used for predicting transfer of radionuclides, estimating doses, and assessing possible adverse effects on species and ...
Shaposhnikova, I.A., Styazhkina, E.V., Akleyev, Alexander V., Teien, Hans-Christian, Osipov, Denis I., Tryapitsina, Galina A., Tikhova, Yu., Shishkina, Elena A., Egoreichenkov, E.A., Pryakhin, Evgeny A., Andreyev, S.S., Deryabina, Larisa V., Sneve, Malgorzata Karpov, Rudolfsen, Geir, Popova, Irina Ya., Melnikov, Viktor S.   +15 more
core   +1 more source

Adipokinetic hormone-induced lipolysis in the fat body of an insect, Manduca sexta: synthesis of sn-1,2-diacylglycerols.

Journal of Lipid Research, 1997
The pathway for the adipokinetic hormone-stimulated synthesis of sn-1,2-diacylglycerols in the adult Manduca sexta fat body was studied. Adult fat body lipids were labeled by feeding 5th instar larvae either with [9,10(n)-3H]oleic acid or [1(3)-3H ...
E L Arrese, M A Wells
doaj   +1 more source

Distribution of natural radioactivity in different geological formations and their environmental risk assessment in Malaysia

Environmental science and pollution research international
Labuan, Miri, Kundasang and Raub regions of Malaysia have very different geological formations and settings that could result in different levels of natural radioactivity.
Sheng Qin Seow, Prasanna Mohan Viswanathan, Dominique Dodge-Wan   +2 more
semanticscholar   +1 more source

Distribution of Radioactivity in Pelagic Clays [PDF]

Tellus, 1955
An attempt is made to study the localization of radioelements in different mineral phases of pelagic clay sediments. The results so far obtained indicate that the ionium supported radium is redistributed by diffusion through the interstitial solution and that the authigenic zeolite phillipsite plays an important role as a scavenger of radioelements ...
Gustaf Arrhenius, Edward D. Goldberg
openaire   +1 more source

QUANTITATIVE ANALYSIS OF CARDIAC PLANAR SPECT IMAGES OF99mTC-MIBIRADIOPHARMACEUTICAL

Anales (Asociación Física Argentina), 2021
In this work 99mTc-MIBI cardiac scintigraphs are quantitively analyzed with the aim to determine the radiopharmaceutical uptake in the heart (organ of interest) and in the liver.
N. Guisande, M. Pallares, S. Rozanskas, L. Quiroga, C. Y. Chain, L. H. Illanes   +5 more
doaj   +1 more source

Machine learning‐based evaluation technology of 3D spatial distribution of residual radioactivity in large‐scale radioactive structures

Nuclear Engineering and Technology
During the decommissioning of nuclear and particle accelerator facilities, a considerable amount of large-scale radioactive waste may be generated. Accurately defining the activation level of the waste is crucial for proper disposal.
UkJae Lee, Phillip Chang, Nam-Suk Jung, Jonghun Jang, Jimin Lee, Hee-Seock Lee   +5 more
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

FEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

Influence of Background on Apparent Counting Efficiency in Radioactivity Analysis

He huaxue yu fangshe huaxue
In radioactivity analysis, counting efficiency(E) and background(to be precise, it should be deterministic background) are usually discussed, but apparent counting efficiency(E') and random background are rarely mentioned.
Xiao-gui FENG, Jian-hua YUAN, Qian-ge HE, Jian-chen WANG, Jing CHEN   +4 more
doaj   +1 more source