Results 91 to 100 of about 124,044 (295)
Angewandte Chemie International Edition, EarlyView.Technetium alkyne complexes have eluded isolation for decades with the only indicators for their existence being the isolation of vinylidene carbenes or their follow‐up reaction products despite plentiful of reports for neighboring elements. Stable, crystalline Tc(III) and Tc(V) alkyne complexes (and their Re analogs) have now been prepared and fully ...
Maximilian Roca Jungfer +5 more
wiley +1 more source
Natural radioactivity survey in Al-Jabal Al-Gharbi Mountain Region Libya
Iraqi Journal of Physics, 2011 The measurement of natural radioactivity in a given region or country is essential to provide a reference base-line map to follow up a possible variation in future.
Miftah O. Hussain
doaj
Journal of Radiation Research and Applied Sciences, 2018 Geological materials usually contaminated with naturally occurring radioactive materials (NORM) have become a focus of great attention. The radioactivity concentrations of 226Ra, 232Th and 40K in some ornamental stones in Egypt, were measured using a ...
A.M. Shohda +3 more
doaj +1 more source
Electrical charging of ash in Icelandic volcanic plumes
, 2014 The existence of volcanic lightning and alteration of the atmospheric potential gradient in the vicinity of near-vent volcanic plumes provides strong evidence for the charging of volcanic ash.
Aplin, Karen L +2 more
core
Experimental Evidence for a Metal‐Related Function of a Cyanobactin
Angewandte Chemie International Edition, EarlyView.Cyanobactins such as patellamides are produced by cyanobacteria profusely and have been studied extensively, but almost exclusively for their cytotoxic properties. Discussed is unprecedented experimental evidence for a metal‐related biological function – likely CO2 transport from the ascidian to the cyanobacterial symbiont.
Philipp Baur +8 more
wiley +1 more source
Monitoring of natural radioactivity in manganese ore [PDF]
Ядерна фізика та енергетика, 2009 The natural radionuclides (238U, 232Th, and 40K) contents of Manganese ore collected by Sinai Manganese Company in Egypt-Cairo have been determined by low background spectroscopy using hyper-pure germanium (HPGe) detector.
H. A. Abdel-Ghany
doaj
Cluster radioactivity of Th isotopes in the mean-field HFB theory
, 2007 Cluster radioactivity is described as a very mass asymmetric fission process. The reflection symmetry breaking octupole moment has been used in a mean field HFB theory as leading coordinate instead of the quadrupole moment usually used in standard ...
L. M. ROBLEDO, M. WARDA, Sandulescu A.
core +1 more source
Applications in Plant Sciences, EarlyView.Abstract Premise Detecting clear tissue‐ and organ‐specific patterns of gene expression is key to understanding the genetic mechanisms that control plant development. In situ hybridization (ISH) of mRNA is one of the most precise, yet most challenging approaches to gene expression assays.
Brooklyn M. Anaya +3 more
wiley +1 more source
International Journal of Analytical Chemistry, 2013 The discovery of high concentration uranium deposit at Mkuju, southern part of Tanzania, has brought concern about the levels of natural radioactivity at villages in the neighborhood of the deposit.
Najat K. Mohammed, Mohamed S. Mazunga
doaj +1 more source
BMEMat, EarlyView.An advanced macrophage‐mediated biomimetic liposome (AC‐LP@RAW) that can penetrate the BBB and precisely target inflammatory sites in the deep brain was established in this study based on the unique immune homing property of macrophages, and showed a significantly improved delivery of curcumin to the brain.
Mengru Wu +5 more
wiley +1 more source