Antibodies to myofibril antigens in cosmonauts after spaceflights

Serum samples obtained from 15 astronauts before and after spaceflights were studied with the use of the indirect immunofluorescent method. In seven astronauts antibodies to different elements of the human heart muscle appeared after flights. Strong and very strong luminescence of the elements of heart muscle tissue was detected in the astronauts after the third space flight. In a study of the sera on sections of bovine heart muscle tissue the reactions of the sera taken before and after flight were found to show no essential differences

Application of 3D technologies in modeling the design of clothes with elements of national décor

This article presents the results of modeling and designing modern clothing with national decorative elements using the program of three-dimensional modeling of Marvelous Designer, AutoCAD and CLO 3D. The functions and potential of the Marvel designer (MD) CLO 3D automated systems are also considered. It is concluded that these automated systems are most suitable for modeling clothes with decor

Development of a method for determining the consumption of a polymer composition on the surface of abrow tissue to reduce the expansion of threads

The article deals with the results of theoretical research of the use of polymer composition based on collagen to reinforce the structure of textile materials in order to prevent sliding in the seams. The calculation of the weight of polymer composition applied to the surface of textile material of garments has been presented. The dependence of the weight of polymer composition on the radius of warp and weft yarns and the width of a unit fabric structure has been determined. A formula for the volume of polymeric material has been obtained to calculate the necessary mass of the polymeric composition applied to the surface of the connection seams

Analysis of innovative developments in the field of foamed materials

In this article, an analytical method is carried out in innovative developments in the field of diving suits with high thermal conductivity. Examples are given of the developments of the athlete and scientist Jack O’Neill, as well as the innovative developments of American chemists under the leadership of Jacopo Buongiorno from the Massachusetts Institute of Technology. Developers, together with chemists, on the basis of research, introduce small chemical elements into the pores of neoprene fabric, thus achieving the necessary thermal stability, flexibility and strength. During the analytical method, not only neprene wetsuits were studied, but also the latest developments in the field of eco-suits. This foam is made from limestone, as it is a natural material, which allows these suits to reduce the negative impact on the environment

Influence of Silver and Copper Nanoparticles on the Enzymatic Activity of Soil-Borne Microorganisms

Influence of metal nanoparticles synthesized by microorganisms upon soil-borne microscopic fungus Aspergillus terreus K-8 was studied. It was established that the metal nanoparticles synthesized by microorganisms affect the enzymatic activity of the studied culture. Silver nanoparticles lead to a decrease in cellulase activity and completely suppress the amylase activity of the fungus, while copper nanoparticles completely inhibit the activity of both the cellulase complex and amylase. The obtained results imply that the large-scale use of silver and copper nanoparticles may disrupt biological processes in the soil and cause change in the physiological and biochemical state of soil-borne microorganisms as well

Formulation of a mathematical problem and methods for solving the development of antistatic clothing for protection from elevated temperatures

The article is devoted to the study and development of a mathematical model of the process of electrification of textile materials in the system "man - clothing - environment" in hot climatic conditions. The phenomenon of static electrification, which occurs in the processes of manufacturing textile materials and products from them, as well as during the operation of finished products, leads to a decrease in the quality of products, causes inconvenience in work, and when an electric discharge occurs, it poses a threat to human life. Such interactions of elements in the "person - clothing - environment" system such as friction, compression, tension, shear increase the contact area of two media, and depending on the rate of these processes, they enhance or weaken metabolic processes, which contributes to an increase in the maximum static charge generated on contacting surfaces. temperature values for special clothing of limited length at the nodal points. At the same time, the number of nodal points is 1601, the number of connected elements is 800. In the area of temperature distribution along the length of the garment, in four different versions, it was found that in the I – version , in the II – version  , in the III – version , in the IV – version , in the V – version , in the VI - version, the length of the clothes in this area increased by 10% compared to the length of the clothes in the II – version

Analysis of clothing elements reflecting fashion trends in the collection of fashion shows

The aim of the work is to study fashion trends, to establish a set of elements through which changes are expressed in models (samples) of collections of fashion shows of clothes, and how these changes are introduced into mass production and are repeated over time. The theoretical significance of the work lies in the development of a methodology for studying clothing samples, identifying fashion trends and making forecasts. The results obtained can be used in training for the formation of competencies among specialists in the field of fashion technology, modeling and clothing design, at industry enterprises for the development of promising collections. The proposed technique was tested, elements of models and materials were identified, the use and combination of which ensures the relative novelty and integrity of the collections, forms a promising trend, which is further implemented in the mass production of clothing

Tides in colliding galaxies

Long tails and streams of stars are the most noticeable upshots of galaxy collisions. Their origin as gravitational, tidal, disturbances has however been recognized only less than fifty years ago and more than ten years after their first observations. This Review describes how the idea of galactic tides emerged, in particular thanks to the advances in numerical simulations, from the first ones that included tens of particles to the most sophisticated ones with tens of millions of them and state-of-the-art hydrodynamical prescriptions. Theoretical aspects pertaining to the formation of tidal tails are then presented. The third part of the review turns to observations and underlines the need for collecting deep multi-wavelength data to tackle the variety of physical processes exhibited by collisional debris. Tidal tails are not just stellar structures, but turn out to contain all the components usually found in galactic disks, in particular atomic / molecular gas and dust. They host star-forming complexes and are able to form star-clusters or even second-generation dwarf galaxies. The final part of the review discusses what tidal tails can tell us (or not) about the structure and content of present-day galaxies, including their dark components, and explains how tidal tails may be used to probe the past evolution of galaxies and their mass assembly history. On-going deep wide-field surveys disclose many new low-surface brightness structures in the nearby Universe, offering great opportunities for attempting galactic archeology with tidal tails.Comment: 46 pages, 13 figures, Review to be published in "Tidal effects in Astronomy and Astrophysics", Lecture Notes in Physics. Comments are most welcom