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11.914  Articles
1 of 1.192 pages  |  10  records  |  more records»
Antimicrobial preservatives are widely added to health products to prevent microbial contamination. However, because of the risks attributed to several synthetic agents, manufacturers are searching for new natural agents. Therefore, this work investigated... see more

 
Is treated in this paper an original qanat. This is the qanat Ouled Said, consisting of the encounter of three foggaras: Antrite, Amokrane and Badgha, which exploit the groundwater of the Greatest western Erg. All negotiations, sale and purchase of shares... see more

This work aims to prepare a new bimetallic phosphate catalyst using a new simple and effective method. This new catalyst was ready for the first time by a modification of Triple Super Phosphate (TSP) fertilizer with silver sulfate (AgSO4), followed by the... see more

The aim of this work is to highlight the influence of variations of some energy balance indicators on the ovarian reaction to superovulation treatment. A three day superovulation protocol was implemented in five cows. Glycemia, BHB (ß-hydroxybutyrate), NE... see more

A simple and efficient method for the synthesis of quinazolin-4(3H)-one derivatives via condensation of anthranilamide with aromatic aldehyde catalyzed by monoammonium phosphate (MAP), diammonium phosphate (DAP), and triple superphosphate (TSP), were deve... see more

In the field of learning, we are witnessing more and more the introduction of new environments in order to better meet the specific needs of the main actors of the process. The shift from face-to-face learning to distance learning or e-learning has overco... see more

The novelty of this work is to propose a new process consisting to the modification of triple superphosphate (TSP) by sodium nitrate (NaNO3) for the preparation of a heterogeneous catalytic support Na2Ca(HPO4)2 (calcium hydrogen disodium phosphate). This ... see more

In this paper, we reported the first use of phosphate fertilizers (MAP, DAP, and TSP) as heterogeneous catalysts for organic reactions.  Their catalytic activities were investigated in the first time in Knoevenagel condensation of various aromatic a... see more

Three-component reaction in one pot transformation of aldehydes, ethylacetoacetate and o-phenylenediamine was employed for the synthesis, under solvent-free, of 1,5-benzodiazepine derivatives using  fertilizers mono-ammonium  phosphate (... see more

1 of 1.192 pages  |  10  records  |  more records»