The minimal compound-complex sentence hierarchy

This article deals with the problem of the study of the subsystem of such type of the Multiple Compound-Complex Sentence as a minimal compound-complex sentence. The authors analyze the formal structure of the multiple compoundcomplex sentences and try to build up the structural models hierarchy of Minimal Compound-Complex SentenceyesBelgorod State Universit

Reactions of 2-(5-methyl-2-phenyl-2H-1,2,3-diazaphosphol-4-yl)- 4H-1,3,2-benzodioxaphosphinin-4-one with chloral and hexafluoroacetone

Reaction of 2-(5-methyl-2-phenyl-2H-1,2,3-diazaphosphol-4-yl)-4H-1,3,2- benzodioxaphosphinin-4-one with chloral occurs at Piii atom of the 1,3,2-dioxaphosphinine cycle giving mostly 2-chlorocarbonylphenyl 2,2-dichlorovinyl (5-methyl-2-phenyl-2H-1,2,3-diazaphosphol-4-yl)phosphonate, whereas hexafluoroacetone incorporates into the 1,3,2-dioxaphosphorine cycle affording the corresponding 1,3,2-benzodioxaphosphepine. © 2011 Mendeleev Communications. All rights reserved

Features of Reaction of 2-(5-Methyl-2-phenyl-2H-1,2,3-diazaphosphol-4-yl)-4H-benzo[e]-1,3,2-dioxaphosphorin-4-one with 1,2-Dicarbonyl Compounds

© 2018, Pleiades Publishing, Ltd. 2-(5-Methyl-2-phenyl-2H-1,2,3-diazaphosphol-4-yl)-4H-benzo[e]-1,3,2-dioxaphosphorin-4-one reacts with perfluorodiacetyl, 3,6-di(tert-butyl)-1,2-benzoquinone and phenanthrenequinone only with the participation of a three-coordinated phosphorus atom to form spirophosphoranes containing acyclic 5-methyl-2- phenyl-2H-1,2,3-diazaphosphol-4-yl substituent, whereas the interaction with tetrachloro-1,2-benzoquinone proceeds via expanding the six-membered heterocycle to the nine-membered one to form 2-(2-phenyl-2H-1,2,3-diazaphosphol-4-yl)-2,9-dioxo-4,5,6,7-tetrachlorodibenzo[d,h]-1,3,8-trioxaphosphonine

IMPROVING THE TRAINING OF MASTER URBAN PLANNERS IN THE FIELD OF ENVIRONMENTAL CRIMINOLOGY BASED ON INFORMATION TECHNOLOGIES

В статье предложена методика совершенствования подготовки будущих магистров-градостроителей на примере применения методов математической статистики для выявления взаимосвязи между пространственными параметрами городской среды (этажность многоквартирных зданий) и случаями велосипедных краж в них. Расчеты коэффициента Спирмена (непараметрическая корреляция) показали наличие этой связи. Исходные данные для расчетов взяты из базы данных велокраж г. Екатеринбурга за 2015–2018 гг.The article offers a method for improving the training of future master urban planners by using mathematical statistics to identify the relationship between the spatial parameters of the urban environment (the number of storeys of apartment buildings) and cases of Bicycle theft in them. Calculations of the Spearman coefficient (nonparametric correlation) showed the presence of this relationship. The initial data for the calculations are taken from the database of Cycling in Yekaterinburg for 2015–201

Caged phosphorane with P-C bond based on chloral and 4,5-dimethyl-2-(2-oxo-1,2-diphenylethoxy)-1,3,2-dioxaphospholane

© 2015 Pleiades Publishing, Ltd. The key methods of caged phosphoranes synthesis are analyzed. Reaction of 4,5-dimethyl-2-(2-oxo-1,2-diphenylethoxy)-1,3,2-dioxaphospholane (prepared from the meso-form of 2,3-butanediol) with chloral has yielded the caged phosphorane containing a phosphorus-carbon bond: 1,1-(1,2-dimethylethylenedioxy)-3,4-diphenyl-6-trichloromethyl-2,5,7,1-trioxaphosphabicyclo[2.2.11,4]heptane; spatial structure of the product has been elucidated with X-ray diffraction analysis

Retention of a six-membered ring in the reaction of 2-dialkylaminobenzo[e]- 1,3,2-dioxaphosphinin-4-ones with Pentafluorobenzaldehyde: O,N-exchange at phosphorus

The title reaction leads to the formation of diastereoisomeric 2-[(dialkylamino)(pentafluorophenyl)methyl]benzo[e]-1,3,2-dioxaphosphinine-2, 4-diones in a ratio of 70: 30. The configuration of chiral centres for the preferable diastereoisomer was determined by single crystal X-ray diffraction analysis. © 2013 Mendeleev Communications. All rights reserved

Allelic polymorphism of atoxigenic Vibrio Cholerae strains of housekeeping genes isolated in Siberia and Far East

There were atoxigenic Vibrio cholerae strains housekeeping genes analyzed. There were studied 20 isolates, in which nine sequence types have determined and five of which have described as unique. There were clustersformed as belonging to serogroup: first cluster includes RO-variantstrains and one O139 serogroup strain of V. cholerae, second - all O1 serogroup V. cholerae strains. There are sequence types associated with place and time isolation strains in some cases, although differentiation of the strains, which are formed the dominant sequence type strains group have no spatial and temporal characteristics associated

ВЛИЯНИЕ СНИЖЕНИЯ НАПРЯЖЕНИЯ КИСЛОРОДА НА КОГНИТИВНЫЕ ФУНКЦИИ КРЫС

In experiments on 22 sexually mature male rats it was found that short-term hypobaric hypoxia is accompanied by restructuring the integrative activity of the brain and the mechanisms of learning and memory that are vulnerable to the oxygen tension in the tissues of the brain. The oxygen tension reduction during 5 minutes contributes to a two-fold increase of the safety period of the conditioned reflex of active avoidance. The preconditioning effect of 5 minute hypoxia is revealed in 7 days after repeated more prolonged 10 minute hypoxia. The decrease in the total motor activity (an average of 60 %) and the increase in the latency period of nociceptive reflexes (an average of 51 per cent) were accompanied in a test of the hot plate. A similar nature of passive-defensive reflex signals is indicative of the shift of the organism to the endogenous resources saving that allows us to save energy resources, including for brain cells, and to survive under the conditions of lower oxygen tension.В экспериментах на 22 половозрелых крысах-самцах установлено, что кратковременная гипобарическая гипоксия сопровождается перестройкой интегративной деятельности мозга и механизмов обучения и памяти, которые уязвимы в условиях снижения напряжения кислорода в тканях мозга. Снижение напряжения кислорода в течение 5 мин способствует увеличению периода сохранности условного рефлекса избегания в два раза. Прекондиционирующий эффект 5-минутной гипоксии выявляется через 7 суток при повторной болем длительной 10-минутной гипоксии. При этом снижение суммарной двигательной активности (в среднем на 60 %, p < 0,05) в тесте горячая пластина сопровождается увеличением латентного периода ноцицептивных рефлексов (в среднем на 51 %, p < 0,05). Подобный характер пассивно-оборонительного рефлекса свидетельствует о переходе организма в режим экономии эндогенных ресурсов, который позволяет сохранить энергетические ресурсы, в том числе для клеток мозга и выжить в условиях снижения напряжения кислорода

NgR1 and NgR3 are Receptors for Chondroitin Sulfate Proteoglycans

In the adult mammalian CNS, chondroitin sulfate proteoglycans (CSPGs) and myelin–associated inhibitors (MAIs) stabilize neuronal structure and restrict compensatory sprouting following injury. The Nogo receptor family members NgR1 and NgR2 bind to MAIs and have been implicated in neuronal inhibition. Here we show that NgR1 and NgR3 bind with high–affinity to the glycosaminoglycan moiety of proteoglycans and participate in CSPG inhibition in cultured neurons. Nogo receptor triple mutants (NgR123−/−), but not single mutants, show enhanced axonal regeneration following retro–orbital optic nerve crush injury. The combined loss of NgR1 and NgR3 (NgR13−/−), but not NgR1 and NgR2 (NgR12−/−), is sufficient to mimic the NgR123−/− regeneration phenotype. Regeneration in NgR13−/− mice is further enhanced by simultaneous ablation of RPTPσ, a known CSPG receptor. Collectively, these results identify NgR1 and NgR3 as novel CSPG receptors, demonstrate functional redundancy among CSPG receptors, and provide unexpected evidence for shared mechanisms of MAI and CSPG inhibition