Entity

Time filter

Source Type


Djabbarov G.,Tashkent State Pedagogical University
Journal of Physics: Conference Series | Year: 2016

The present paper devoted to study of the extreme boundary of the convex compact set of all semi-additive functionals on the four-point compactum. We shall find some classes of extreme points of the space semi-additive functionals OS(4). © Published under licence by IOP Publishing Ltd. Source


Turgunov K.,Academy of Sciences of Uzbekistan | Shomurotova S.,Tashkent State Pedagogical University | Mukhamedov N.,Academy of Sciences of Uzbekistan | Tashkhodjaev B.,Academy of Sciences of Uzbekistan
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

In the title complex, [CuCl2(C8H6N 2O)2(H2O)2], the CuII ion is located on an inversion center and is octahedrally coordinated by two N atoms of the 1H-quinazolin-4-one ligand, two chloride ligands and two aqua ligands. The axial Cu - O distances are significantly longer [2.512 (2) Å], than the Cu - N [2.022 (2) Å] and Cu - Cl [2.3232 (4) Å] distances as a result of Jahn-Teller distortion. Aqua ligands are involved in intra- and inter-molecular hydrogen bonding, and N - H⋯O inter-molecular hydrogen bonds are formed between the organic ligands. In addition, weak π-π inter-actions are observed between the benzene rings of the ligand [centroid-centroid distance = 3.678 (1) Å]. Source


Sattarov I.,Tashkent State Pedagogical University
Proceedings of the International Astronomical Union | Year: 2010

Today's Solar Physics comes across of different type of fine structures in solar atmosphere including umbral dots and penumbral grains in sunspots, and G-band bright points in quiet Sun. In this report, we present evidence that umbral dots, penumbral grains, and, possibly, G band bright points are related to a common type of features in solar atmosphere magnetic flux tubes. © International Astronomical Union 2011. Source


Khairova I.V.,Kazan Federal University | Egamberdieva N.M.,Tashkent State Pedagogical University
International Journal of Environmental and Science Education | Year: 2016

The timeliness of the problem under study is that in conditions of the renewal of the content and system of education the interest to the communicative and development potentials of education in the system of course retraining of teachers who work in national (Tatar) schools is growing. However, actual academic complexes for teachers do not always express the idea of communicatively developing education as a technology, didactic system or model. In the article the model of communicatively developing technology of learning is presented. The technology contains the humanitarian potential and speech activating technologies. The main method used in the study was the pedagogic experiment which permitted us to conduct the experimental verification of communicatively developing approaches in teaching, providing certain level of coherent speech. The results of the experimental work proved that the use of communicatively developing methods in course retraining allows to improve the quality of teachers coherent speech. The main results of the study are: the content development of the communicatively developing program of Russian coherent speech for teachers attending extension courses, and also the structure and content definition of diagnostic studies of Tatar schools teachers coherent speech. The article materials may be used on extension courses for teachers and in the system of university studies for future teaches. © 2016 by iSER, International Society of Educational Research. Source


Shomurotova S.,Tashkent State Pedagogical University | Turgunov K.K.,Academy of Sciences of Uzbekistan | Mukhamedov N.,Academy of Sciences of Uzbekistan | Tashkhodjaev B.,Academy of Sciences of Uzbekistan
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the title complex, [NiCl2(C8H6N 2O)2(H2O)2], the NiII ion is located on an inversion center and is six-coordinated by two N atoms of 1H-quinazolin-4-one ligands, two chloride ions and two water molecules. The water molecules are involved in intra- and intermolecular O - H⋯O and O - H⋯Cl hydrogen bonding. Intermolecular N - H⋯O and N - H⋯Cl hydrogen bonds are formed between ligands. In addition, weak π-π interactions are observed between the benzene rings of the ligands [centroid-centroid distance = 3.580 (3) Å]. The intermolecular hydrogen bonds and π-π interactions lead to the formation of a three-dimensional supramolecular network. Source

Discover hidden collaborations