Nature of Phenolic Pollution of the Vakh River

Data on definition of phenols in waters of the Vakh River and vegetable samples of a flood plain of the river are presented in article. Researches were conducted during the period from 2011 to 2015. The big and small rivers of the Tyumen North contain significant amounts of humic acids. It is known that a large amount of natural phenols is present at the taiga and tundra rivers, and the largest content is characteristic of marsh waters. Enrichment of natural waters phenols happens at the content in water of peat and rotting of flooded trees. The number of phenolic connections increases at different damages of plants: mechanical, chemical. Owing to the dominating state in biocenoses of the North of the Tyumen region mosses and lichens having the chemical composition which is characterized by prevalence of low-molecular phenolic connections in environment of this region also chemically mobile substances of this class are widespread physically. The purpose of work is research of phenolic pollution of waters of the Vakh River and determination of dependence on natural and anthropogenous factors, in particular conditions of an inundated zone. As a result of the conducted researches was consistent pattern of phenolic pollution of waters of the Vakh River is determined and the hypothesis of his nature is confirmed

Product-Placement on Internet Promotion

На сегодняшний день все больше явлений становятся доступны в онлайн-формате. Развлечения выходят на новый уровень, используются новые технологии взаимодействия с пользователями, контент уходит в интернет-пространство на стриминговые сервисы. Интернет-реклама лидирует среди способов продвижения. В статье рассматривается использование продакт-плейсмента в Интернете на примере исследования кейса по веб-сериалу «Последний рейв».Today the internet is used for a variety of purposes. More and more things are becoming available online. Entertainment is reaching a new level, and some phenomena completely go into the Internet space for streaming services. The article examines the use of product placement on the Internet using the example of a case the web series «The Last Rave»

Reaction of P(III) Organyl Halides with 3,4-Dichloro-5-hydroxy-2(5H)-furanone

Reaction of diphenylchlorophosphine with 3,4-dichloro-5-hydroxy-2(5H)-furanone was used to prepare 3,5-dichloro-4-diphenylphosphinoyl-2(5H)-furanone. The reaction occurs involves nucleophilic substitution of the chlorine β to the carbonyl group and an unusual intermolecular rearrangement. The reaction with diethyl phosphorochloridite takes two routes: The first route is similar to that with diphenylchlorophosphine and the second involves the hydoxyl group

New triphenylphosphonium salts from a cyclic 2,3-dichloro-4-oxobut-2-enoic acid and its esters. Synthesis of an unusual phosphonium betaine

PPh3 reacts with a cyclic 2,3-dichloro-4-oxobut-2-enoic acid and its cyclic and acyclic esters to form new triphenylphosphonium salts. Treatment of the obtained salts with triethylamine leads to an unusual phosphonium betaine. © 1996 MAEe cyrillic signK Hayκa/Interperiodica Publishing

New Reaction of 3,4-Dichloro-5-hydroxy-2(5H)-furanone with Trimethylsilylphosphites

The new reaction path of the phosphorylation of 3,4-dichloro-5-hydroxy-2(5H)-furanone with trimethylsilylphosphite is found. It is established that the reaction involves two reaction centres to give 4- and 5-phosphorylation products

A new case of Acute Myeloid Leukemia with semi-cryptic t(7;21)(p22;q22)

Case report of a translocation : A new case of Acute Myeloid Leukemia with semi-cryptic t(7;21)(p22;q22)

THE STATE OF NUTRITIONAL STATUS AND ITS IMPACT ON THE LEVEL OF COMORBIDITY IN PATIENTS ON HEMODIALYSIS

The aim of the study was to investigate the nutritive status and identify risk factors for cardiovascular disease in patients on hemodialysis. Material and methods. 144 patients on program hemodialysis were examined. All patients underwent general clinical and laboratory examination, lipid profile was examined, body mass index was calculated, waist and hip circumference was measured, ratio of waist circumference to the circumference of hip was determined, abdominal integral multi-frequency bioimpedansometry and multispiral computed tomography were performed. Results. Gender features of distribution of abdominal adipose tissue and dyslipidemia in patients on program hemodialysis were revealed. Women have a predominant accumulation of visceral adipose tissue, while men are characterized by a proportional distribution of subcutaneous and visceral adipose tissue in the abdominal area. Women compared to men have higher rates of atherogenic lipoprotein fractions, which level is closely related to the volume of visceral adipose tissue. Among the comorbidities in the examined patients, diseases of the cardiovascular system predominate. The regression analysis revealed that the most significant risk factor for the development of coronary artery disease is an increase in lowdensity lipoproteins, for chronic heart failure – an increase in waist circumference. Conclusions. The data obtained indicate the need to monitor the nutritional status of patients on hemodialysis to identify and correct risk factors for cardiovascular disease

Carbon States in Carbon-Encapsulated Nickel Nanoparticles Studied by Means of X-Ray Absorption, Emission, and Photoelectron Spectroscopies

Electronic structure of nickel nanoparticles encapsulated in carbon was characterized by photoelectron, X-ray absorption, and X-ray emission spectroscopies. Experimental spectra are compared with the density of states calculated in the frame of the density functional theory. The carbon shell of Ni nanoparticles has been found to be multilayer graphene with significant (about 6%) amount of Stone--Wales defects. Results of the experiments evidence protection of the metallic nanoparticles from the environmental degradation by providing a barrier against oxidation at least for two years. Exposure in air for 2 years leads to oxidation only of the carbon shell of Ni@C nanoparticles with coverage of functional groups.Comment: 16 pages, 6 figures, accepted in J. Phys. Chem.

Mto2 multisite phosphorylation inactivates non-spindle microtubule nucleation complexes during mitosis

Microtubule nucleation is highly regulated during the eukaryotic cell cycle, but the underlying molecular mechanisms are largely unknown. During mitosis in fission yeast Schizosaccharomyces pombe, cytoplasmic microtubule nucleation ceases simultaneously with intranuclear mitotic spindle assembly. Cytoplasmic nucleation depends on the Mto1/2 complex, which binds and activates the γ-tubulin complex and also recruits the γ-tubulin complex to both centrosomal (spindle pole body) and non-centrosomal sites. Here we show that the Mto1/2 complex disassembles during mitosis, coincident with hyperphosphorylation of Mto2 protein. By mapping and mutating multiple Mto2 phosphorylation sites, we generate mto2-phosphomutant strains with enhanced Mto1/2 complex stability, interaction with the γ-tubulin complex and microtubule nucleation activity. A mutant with 24 phosphorylation sites mutated to alanine, mto2[24A], retains interphase-like behaviour even in mitotic cells. This provides a molecular-level understanding of how phosphorylation ‘switches off' microtubule nucleation complexes during the cell cycle and, more broadly, illuminates mechanisms regulating non-centrosomal microtubule nucleation