376 research outputs found

    Features of micro- and ultrastructure of low-fat butter and its low-fat analogues

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    The aim of the research was to study the features of the structure of low-fat butter and butter pastes, which, in terms of composition and properties, more fully meet the requirements of a healthy diet than high-fat types of butter. The objects of research were: butter with fat content of 72.5%; butter with fat content of 55% made with the addition of skimmed milk powder; butter of the same fat content with the addition of stabilizers based on guar and xanthan gums and emulsifiers based on monoand diglycerides of fatty acids; butter pastes with fat content of 45% with similar additives used to increase the stability of the process of butter formation and improve the texture. The microstructure was studied using an MBI-6 microscope, and the ultramicrostructure was studied using a Phillips electron microscope. In the first case, the sample was prepared by crushing the sample, in the second one — by the method of ultrafast freeze-fracture and etching. Researches have shown that the use of the introduced ingredients improves the homogeneity of the structure of the studied products. Due to the ability of milk proteins and stabilizers to retain moisture, it is more evenly distributed and well retained in the fat matrix of the product, formed from crystalline and liquid fat in the form of a continuous phase, which is confirmed by a sufficient penetration depth of the fat-soluble dye. Plasma droplets in butter with fat content of 72.5% and 55% are more isolated than in butter pastes, as indicated by the greater penetration depth of the water-soluble dye. The average diameter of isolated moisture droplets in low-fat products was 3.3–5.4 μm, and the average diameter of the fat globules that form the basis of the crystalline framework was 5.4–7.4 μm, depending on the composition of the product. For butter with fat content of 72.5%, the values of these indicators were 2.8 and 4.0 μm. The results of the study indicate the presence of differences in the sizes of structural elements, but at the same time confirm the uniformity of the structure of low-fat products, allowing them to be attributed to dispersions «water-in-oil»

    Pathomorphological indicators of endothelial - erythrocytic dysfunction in type I diabetes: from the period of reproduction to the elderly and senile age

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    The study proved that changes in carbohydrate metabolism in diabetes mellitus significantly affect the properties of the endothelial-erythrocytic system, and they can be diagnosed using various modern microscopy methods at an early stag

    Alternative methods for controlling nasal obstruction in children

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    Currently, rhinitis accompanied by nasal obstruction is one of the most common diseases in children and adolescents. Regardless of the cause of its occurrence - an infectious or non-infectious (allergic) process, each time there is a vascular (vasomotor) reaction. In children of preschool and primary school age, the most common is infectious rhinitis, which develops with viral and bacterial infections. The group of non-allergic rhinitis, which develops more often in adolescents, is united by the term idiopathic (vasomotor) rhinitis.Purpose of the study. Evaluation of the effectiveness of the use of a complex preparation containing calendula, witch hazel, esculus, menthol and zinc oxide in the treatment of vasomotor rhinitis in children.Materials and methods. The study included 40 patients of childhood and adolescence, of both sexes (23 girls and 17 boys) aged 6 to 14 years with an established diagnosis of vasomotor (idiopathic) rhinitis, without concomitant pathology, not registered with specialists, without constant admission The study drug was used to lubricate the mucous membrane of the nasal cavity or put turundas with ointment for 3-5 minutes 2-3 times a day. The course of treatment was 7-10 days. The effectiveness of treatment was assessed by the dynamics of clinical data and the severity of the subjective symptoms of the disease.Results. A comparisons of these scores for re-assessing the status of patients relative to the timing of the study drug use showed a uniform positive trend in terms of the clinical picture and subjective complaints of patients.Conclusions. The inclusion in the complex therapy of pediatric patients with idiopathic (vasomotor) rhinitis of the drug Fleming’s Ointment, or monotherapy with this agent, contributes to a  rapid and pronounced weakening of  the  clinical manifestations of the disease, allowing you to quickly achieve positive treatment results in the form of relief of nasal obstruction, rhinorrhea, edema of the mucous membrane of the cavity nose, sneezing. There is a positive trend in the state of the mucous membrane itself

    Investigation of the earth roof through the combined method: mechanical way and ground penetrating radar in the Yamalo-Nenets Autonomous Okrug

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    The paper presents the results of the multidisciplinary experimental investigation of the soils in the sporadic permafrost Northern-taiga subzone (Yamalo-Nenets Autonomous Okrug, Western Siberia) based on the combination of the methods of radiophysical GPR investigation and classical methods of soil science. The aim is to develop the methods of objective identification of soils during the decoding of radarograms when monitoring the state of permafrost soil

    Synthesis and Cytotoxic Effect of 1-Aryl-Substituted-6-Imino-2,7-Dioxabicyclo[3.2.1]Octane-4,4,5-Tricarbonitriles

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    The work was carried out within the framework of scholarship SP-127.2016.4 from the President of the Russian Federation for young scientists and graduate students
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