Functional asymmetry of the brain: new opportunities in defectology

The paper also raises the question of the need to take into account functional asymmetry of the brain when working with children with special educational needs. It is proved that disintegration of the hemispheres of the brain can cause the emergence of mental underdevelopment and learning disabilities, which brings about the need to develop a differentiated approach to the education of children with special educational needs and to carry out a corresponding study in the field of defectology.Статья посвящена изучению функциональной асимметрии головного мозга у детей с задержкой речевого роазвития

Elucidation of a masked repeating structure of the O-specific polysaccharide of the halotolerant soil bacteria Azospirillum halopraeferens Au4

Abstract An O-specific polysaccharide was obtained by mild acid hydrolysis of the lipopolysaccharide isolated by the phenol-water extraction from the halotolerant soil bacteria Azospirillum halopraeferens type strain Au4. The polysaccharide was studied by sugar and methylation analyses, selective cleavages by Smith degradation and solvolysis with trifluoroacetic acid, one-and two-dimensional 1 H and 13 C NMR spectroscopy. The following masked repeating structure of the O-specific polysaccharide was established: →3)- where non-stoichiometric substituents, an O-methyl group (~45%) and a side-chain glucose residue (~65%), are shown in italics. 63

Is there risk compensation among HIV infected youth and adults 15 years and older on antiretroviral treatment in South Africa? findings from the 2017 national HIV prevalence, incidence, behaviour and communication survey

In this paper, risk compensation among individuals on antiretroviral therapy (ART), using the 2017 South African national survey on HIV, is explored. A multi-stage stratified cluster random sampling approach was used to realize 11,130 participants 15 years and older. Logistic regression analysis assessed the association between multiple sexual partners, condom use at last sexual encounter, consistency of condom usage and potential explanatory variables using HIV status and ART exposure as a mediator variable. HIV positive participants who were aware and on ART were less likely to have multiple sexual partners, and less likely not to use a condom at last sex compared to HIV positive participants who were aware but not on ART. The odds of reporting multiple sexual partners were significantly lower among older age groups, females, non-Black Africans, and rural settings, and higher among those with tertiary level education, and risky alcohol users. The odds of no condom use at last sexual encounter were more likely among older age groups, females, other race groups, and less likely among those with secondary level education. The odds of inconsistent condom use were more likely among older age groups, females, and other race groups, and less likely among those with tertiary level education, high risk and hazardous alcohol users. Risk compensation is not apparent among HIV infected adults who are on ART. Risk groups that should receive tailored interventions to reduced risky sexual behaviours were identified.DATA AVAILABILITY STATEMENT : The data for this manuscript are openly available on the Human Sciences Research Council institutional repository available at https://repository.hsrc.ac.za/handle/20.500.119 10/15468, Archive number: SABSSM 2017 Combined, URI: http://doi.org/10.14749/1585345902.President’s Emergency Plan for AIDS Relief (PEPFAR) through the Centers for Disease Control and Prevention (CDC) Cooperative Agreement.https://www.mdpi.com/journal/ijerphPsycholog

Pectobacterium atrosepticum exopolysaccharides: Identification, molecular structure, formation under stress and in planta conditions

© The Author 2017. Published by Oxford University Press. All rights reserved. In the present study, we identified exopolysaccharides of the harmful phytopathogenic bacterium Pectobacterium atrosepticum SCRI1043 and characterized the molecular structure of these polymers. The synthesis of the target polysaccharides was shown to be induced under starvation conditions. Moreover, intensive accumulation of exopolysaccharides occurred during the colonization by bacteria of the xylem vessels of infected plants, where microorganisms formed specific 3D "multicellular" structures-bacterial emboli. Thus, the identified polymers are likely to be involved in the adaptation and virulence of bacteria of Pectobacterium genus

Manifestation of anxiety in junior school children with disorders of psychological development under the conditions of social deprivation

The article discusses the manifestation of anxiety in the emotional sphere of primary school children with disorders of psychological development.В статье рассматривается проявление тревожности в эмоциональной сфере учащихся с задержкой психического развития

Consequences of anthropogenous influence on the air of the Stavropol region and men's health

Influence of air pollution in Stavropol district on health of the population is analyzed. Dominating sources and kinds of substances polluting the atmosphere are revealed. The contribution of various industries to air pollution of Stavropol district is certained. There is made the analysis of the consequences of carbon oxide, nitrogen oxide, hydrocarbons and other substances influence on occurrence and development of various pathologies

Structure of the 4-O-[1-Carboxyethyl]-d-Mannose-Containing O-Specific Polysaccharide of a Halophilic Bacterium Salinivibrio sp. EG9S8QL

The moderately halophilic strain Salinivibrio sp. EG9S8QL was isolated among 11 halophilic strains from saline mud (Emisal Salt Company, Lake Qarun, Fayoum, Egypt). The lipopolysaccharide was extracted from dried cells of Salinivibrio sp. EG9S8QL by the phenol–water procedure. The OPS was obtained by mild acid hydrolysis of the lipopolysaccharide and was studied by sugar analysis along with 1H and 13C NMR spectroscopy, including 1H,1H COSY, TOCSY, ROESY, 1H,13C HSQC, and HMBC experiments. The OPS was found to be composed of linear tetrasaccharide repeating units of the following structure: →2)-β-Manp4Lac-(1→3)-α-ManpNAc-(1→3)-β-Rhap-(1→4)-α-GlcpNAc-(1→, where Manp4Lac is 4-O-[1-carboxyethyl]mannose

Historical stages of formation of carabid’ fauna (Coleoptera, Carabidae) of Ciscaucasia

Formation of carabid’ fauna Ciscaucasia has begun, possibly, in the epoch of beginning Cretaceous. There were the serious changes of landscapes during the subsequent epoch. They have led to formation of modern fauna

Medical rehabilitation of patients suffering from thrombotic deseases of venous vessels of lower extremities

Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

RESEARCH ON BUOYANT FORCE DEPENDENCE OF SPECIALIZED AEROSTAT ON ITS MOTION VIRABLES

The international scientific-research MAAT (Multibody Advanced Airship for Transport) project supported by the European Union on the Seventh framework program solves the global problem on the ecologically safe transportation. One of its sections has the aim to research the aerodynamics of the specialized high-altitude balloons — so-called shuttles. They are designed for supporting communications between the earth-based airports and the aerostats which are permanently cruising in the stratosphere — cruisers. One of the aerodynamic research tasks needed to develop an appropriate mathematical model is solved. The problem on the mathematical description of the buoyant force changes under the shuttle plunging in its both undisturbed and disturbed position is set and solved. For that, a simulation experiment based on the so-called “electronic airflow” through the computer modeling is conducted. The computing results of the buoying drag force under varying conditions are processes through the regression analysis techniques. The obtained expression permits to identify the mathematical model of the shuttle motion dynamics presented through Euler's equations. The results are illustrated by the table and graphical data