introduction:owing to its favorable radionuclidic characteristics, such as tl/2 = 6.73 day and eβ (max) = 497 kev and ease of its large-scale production using medium flux research reactors, lutetium-177 (177lu) is an attractive radionuclide for various therapeutic applications. no carrier added (nca) 177lu was obtained by thermal neutron bombardment (4×1013n/cm2.s) of 176yb target through 176yb...

Introduction:Owing to its favorable radionuclidic characteristics, such as tl/2 = 6.73 day and Eβ (max) = 497 keV and ease of its large-scale production using medium flux research reactors, lutetium-177 (177Lu) is an attractive radionuclide for various therapeutic applications. No carrier added (NCA) 177Lu was obtained by thermal neut...

Mercury is used in small-scale mining to amalgamate gold particles, facilitating their separation from heavy sands. The negative environmental/health-related effects of mercury in mining communities in Ghana and other countries have generated research interest into development of safer alternatives. This study tested direct smelting as an alternative to amalgamation. In laboratory investigation...

Peru has produced metals for thousands of years and is the leading gold producer in Latin America today; however, indigenous mining technology used to produce industrial amounts pre-contact thus far been undescribed. Industrial are only two ways: 1) gravity separation/mercury (amalgamation), 2) cyanide. Therefore, an understanding present-day methods key past. For example, 2018, Peru’s large-sc...

It was proved in [4] that interpolation properties of propositional normal modal logics (n.m.l.) are closely connected with amalgamation properties of associated varieties of modal algebras. In this paper we find an algebraic equivalent of the Hallden property in modal logics, namely, we prove that the Hallden-completeness in any n.m.l. is equivalent to the so-called Super-Embedding Property of...

We show that the generic automorphism is axiomatizable in the green field of Poizat (once Morleyized) as well as in the bad fields that are obtained by collapsing this green field to finite Morley rank. As a corollary, we obtain ‘bad pseudofinite fields’ in characteristic 0. In both cases, we give geometric axioms. In fact, a general framework is presented allowing this kind of axiomatization. ...

The technique to fabricate nanofibrous mat by electro-spinning has been known for a long time. But the attempts to use the electospun nanofiber mats, also known as electro-spun nanofiber membranes (ENMs), for filtration purposes began only recently. Among many membrane filtration processes, air cleaning by the removal of dust particles has already been commercialized and the product has been in...