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Dec 2021 DOI 10.14302/issn.2766-8681.jcsr-21-3805
Chiaa AdicheCorresponding author
A convenient one-pot synthetic protocol for the preparation of sulfonyl amidines has been developed. The procedure combines three-component reaction of sulfonyl azide, methyl propiolate and secondary cyclic amine coupling in one sequence without any solvent or catalyst and at room temperature. The r…
Jan 2020 DOI 10.14302/issn.2379-7835.ijn-19-3139
Yaaser Q. AlmulaikyCorresponding author
In this study, a peroxidase from new source was purified using ion exchange and gel filtration techniques. The recovery for peroxidase activity was 19% with 11-fold purification and specific activity of 749 unit/mg protein. Purified peroxidase demonstrated a molecular mass of 39 kDa using gel filtra…
Mar 2019 DOI 10.14302/issn.2643-0282.imsj-19-2672
Fedekar Fadel MadkourCorresponding author
Recently, annual swarm of invasive Erythrean schyphozoan RhopilemanomadicaGalil, 1990 appeared along Egyptian Mediterranean coasts causing beach closures and fishing problems. The present study conducted survey and field monitoring on R. nomadica during blooming season in the Egyptian Mediterranean…
Sep 2018 DOI 10.14302/issn.2689-2855.jan-18-2342
Andrey BelousovCorresponding author
This study was devoted to the learning of the use of nanotechnology to correct the functional activity of red blood cells (RBCs) at the storage stages at a positive temperature. It was established that saline NaCl, which had previously been processed by magnetite nanoparticles (ICNB) had a marked me…
Jul 2018 DOI 10.14302/issn.2642-3146.jec-18-2232
Loai AljerfCorresponding author
Critical conditions are usually obtained for ignition in a self-heating solid system consisting of two components generating heat independently, one component being inexhaustible and the other exhaustible by either simple first order or autocatalytic reaction. Ignition depends upon whether the exhau…
Dec 2017
Loai AljerfCorresponding author
p-hydroxybenzoic acid esters are used as food and drug preservatives. These compounds were quantised by a reversed-phase thin-layer chromatography method based on the use of silanized silica gel as stationary phase. Thin layers chromatography of silanized silica gel (HF254) is implemented to separat…