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3.430  Articles
1 of 343 pages  |  10  records  |  more records»
Chemical transformations of eudesmane sesquiterpene ?-lactones, leading to new biologically active compounds, have become an important direction in medicinal chemistry. This article discusses the stereoscopic intramolecular transformations of the sesquite... see more

The paper is devoted to preparation and study of the transformations of novel multifunctional fluorinated synthetic building blocks – alkyl N-(3-nitro-1,1,1-trifluoropropan-2-yl) carbamates. In order to obtain them in high yields the aza-Henry reaction of... see more

Substantial motion is Mulla Sadra's philosophical innovation in material existence. Since the four fundamental interactions are the major topics of physics, in this comparative study, substantial motion is tested based on physical achievements. The study ... see more

This investigation is devoted to the synthesis of new representatives of 2-amino-5-imidazolil-1,3,4-thiadiazole systems, the study of some chemical transformations and the bactericidal activity. It has been shown that thiosemicarbazones obtained by conden... see more

The article examines the influence of various methods of syntactic and morphological transformations on the process of translating the literary works. The translation transformations or modification of translation, which is often used in the translation p... see more

In this article we aim to understand the transformations of rational number representations carried out by students and their mathematical reasoning processes. We report part of a Design Based Research, within which an intervention was carried out in a cl... see more

The studies have established the possibility of reducing computational complexity, higher productivity of minimization of the Boolean functions in the class of expanded normal forms of the Sheffer algebra functions by the method of image transformations.E... see more

To understand the phenomenon of chemical transformations in high school, students need to comprehend the idea of conservation of matter and of non-conservation of substances during the process.By considering the hypothesis of hierarchical integration, thi... see more

The object of research is the competitiveness of construction enterprises in the context of geopolitical transformations. One of the unresolved problems in this area is the assessment of the influence of external factors on the development of enterprises ... see more

1 of 343 pages  |  10  records  |  more records»