Correlation between CF2-and C2F4-concentrations in pulsed capacitively coupled CF4/H2 rf plasma

The CF2 and C2F4 absolute concentrations were measured in pulsed low pressure CF4/H2 rf plasmas (13.56 MHz, CCP) by means of Infra-Red Tuneable Diode Laser Absorption Spectroscopy. For measurement of CF2 radicals the P2(21) line at 1096.3433 cm-1 was chosen with its calculated line strength of 4.09·10-20 cm/molecule. In case of C2F4 there is no detailed spectroscopic data available. Therefore, the C2F4 gas was produced by thermal decomposition of polytetrafluoroethylene for spectroscopic analysis. An absorption structure of several overlapping C2F4 lines was found around 1337.11 cm-1 and manually fitted. In pulsed plasma the time dependencies of the CF2 and C2F4 concentration correlated with each other. In plasma off-phase, the recombination of two CF2 radicals forming C2F4 was found to be dominant in CF2 kinetics, but of minor importance in C2F4 production

Adaptation to hypoxia as a method of treatment and prevention of gastroduodenal mucosa lesions

Intermittent normobaric hypoxia (13-23 daily sessions 30-50 min each) alleviated the dyspeptic and pain syndromes, improved the objective characteristics of the gastrointestinal tract, and promoted healing of duodenal and peptic ulcers

Body type of cows as a factor of their productive longevity

The purpose of these studies was to assess the influence of Russian Black Pied cows’ body types on their productive longevity. The studies were conducted on the basis of enterprises of the Sverdlovsk region specializing in breeding of Russian Black Pied cattle. Most heifers were of the complex class “Excellent” (36.0%), less of “Satisfactory” (6.0%). The second largest class was “Good with a plus” (28.0%). A complex class of animals affects their milk production. When selecting first-calf heifers, taking into account the body type, it seems possible to obtain animals of a conformation complex class not lower than “Good”; to obtain at least 5000-5500 kg of good quality milk with a mass fraction of fat of 3.85-3.88% and protein fraction of 3.06-3.08% from cows of 305 days of lactation, depending on the potential of the breeding herd; to increase the duration of production use up to 4.3-6.8 lactations; to increase the level of lifelong yield to 29637.0-38126.8 kg of milk

Correlation between CF2-and C2F4-concentrations in pulsed capacitively coupled CF4/H2 rf plasma

The CF2 and C2F4 absolute concentrations were measured in pulsed low pressure CF4/H2 rf plasmas (13.56 MHz, CCP) by means of Infra-Red Tuneable Diode Laser Absorption Spectroscopy. For measurement of CF2 radicals the P2(21) line at 1096.3433 cm-1 was chosen with its calculated line strength of 4.09·10-20 cm/molecule. In case of C2F4 there is no detailed spectroscopic data available. Therefore, the C2F4 gas was produced by thermal decomposition of polytetrafluoroethylene for spectroscopic analysis. An absorption structure of several overlapping C2F4 lines was found around 1337.11 cm-1 and manually fitted. In pulsed plasma the time dependencies of the CF2 and C2F4 concentration correlated with each other. In plasma off-phase, the recombination of two CF2 radicals forming C2F4 was found to be dominant in CF2 kinetics, but of minor importance in C2F4 production

The structure of interstitial lung diseases in children of the first two years of life

For the first time in Russia, the article provides data on interstitial lung diseases structure in children of the first two years of life, based on a series of observations of 68 patients with these rare diseases, as a part of multi-center ambispective study. Interstitial lung diseases in observed children included: Wilson-Mikity syndrome (23,4%), neuroendocrine hyperplasia of infancy (22%), bronchiolitis obliterans with organizing pneumonia (7,4%), primary pulmonary hypoplasia (1,5%), secondary pulmonary hypoplasia with Jeune syndrome (10,3%), secondary pulmonary hypoplasia with Edwards syndrome (2,9%), secondary pulmonary hypoplasia with other associated pathology (omphalocele - 1,5%, non-immune fetal hydrops - 1,5%), subpleural cysts in patients with Down syndrome (5,9%), congenital deficiency of surfactant protein B (1,5%), brain-lung- thyroid syndrome (2,9%), congenital alveolar-capillary dysplasia (1,5%), interstitial lung diseases with systemic diseases (Langerhans cell histiocytosis - 16,2%, Niemann-Pick disease - 1,5%). The article summarizes clinical features, the results of image diagnosis and disease outcomes. © 2015, Pediatria Ltd. All rights reserved

The structure of interstitial lung diseases in children of the first two years of life

For the first time in Russia, the article provides data on interstitial lung diseases structure in children of the first two years of life, based on a series of observations of 68 patients with these rare diseases, as a part of multi-center ambispective study. Interstitial lung diseases in observed children included: Wilson-Mikity syndrome (23,4%), neuroendocrine hyperplasia of infancy (22%), bronchiolitis obliterans with organizing pneumonia (7,4%), primary pulmonary hypoplasia (1,5%), secondary pulmonary hypoplasia with Jeune syndrome (10,3%), secondary pulmonary hypoplasia with Edwards syndrome (2,9%), secondary pulmonary hypoplasia with other associated pathology (omphalocele - 1,5%, non-immune fetal hydrops - 1,5%), subpleural cysts in patients with Down syndrome (5,9%), congenital deficiency of surfactant protein B (1,5%), brain-lung- thyroid syndrome (2,9%), congenital alveolar-capillary dysplasia (1,5%), interstitial lung diseases with systemic diseases (Langerhans cell histiocytosis - 16,2%, Niemann-Pick disease - 1,5%). The article summarizes clinical features, the results of image diagnosis and disease outcomes. © 2015, Pediatria Ltd. All rights reserved