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  1. Article ; Online: Preservation of Mechanical and Morphological Properties of Porcine Cardiac Outflow Vessels after Decellularization and Wet Storage.

    Sergeevichev, David / Vasiliyeva, Maria / Kuznetsova, Elena / Chelobanov, Boris

    Biomimetics (Basel, Switzerland)

    2023  Volume 8, Issue 3

    Abstract: Widely used storage methods, including freezing or chemical modification, preserve the sterility of biological tissues but degrade the mechanical properties of materials used to make heart valve prostheses. Therefore, wet storage remains the most optimal ...

    Abstract Widely used storage methods, including freezing or chemical modification, preserve the sterility of biological tissues but degrade the mechanical properties of materials used to make heart valve prostheses. Therefore, wet storage remains the most optimal option for biomaterials. Three biocidal solutions (an antibiotic mixture, an octanediol-phenoxyethanol complex solution, and a glycerol-ethanol mixture) were studied for the storage of native and decellularized porcine aorta and pulmonary trunk. Subsequent mechanical testing and microstructural analysis showed a slight increase in the tensile strength of native and decellularized aorta in the longitudinal direction. Pulmonary trunk elongation increased 1.3-1.6 times in the longitudinal direction after decellularization only. The microstructures of the tested specimens showed no differences before and after wet storage. Thus, two months of wet storage of native and decellularized porcine aorta and pulmonary trunks does not significantly affect the strength and elastic properties of the material. The wet storage protocol using alcohol solutions of glycerol or octanediol-phenoxyethanol mixture may be intended for further fabrication of extracellular matrix for tissue-engineered biological heart valve prostheses.
    Language English
    Publishing date 2023-07-17
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2313-7673
    ISSN (online) 2313-7673
    DOI 10.3390/biomimetics8030315
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Economic and zoological rationale for using new bedding material for lactating cows

    Danilova Nadezhda / Kuznetsova Elena / Beloglazova Olga

    BIO Web of Conferences, Vol 43, p

    2022  Volume 03020

    Abstract: This article examines the influence of the studied bedding material, which is dust-free wood shavings, cleaned from metal impurities and processed by thermochemical and biotechnological methods on the productivity of cows, the sanitary and hygienic ... ...

    Abstract This article examines the influence of the studied bedding material, which is dust-free wood shavings, cleaned from metal impurities and processed by thermochemical and biotechnological methods on the productivity of cows, the sanitary and hygienic quality of milk and the profitability of the products obtained. The production experience was carried out in the conditions of one of the farms of the Republic of Tatarstan on cows of the Holstein-Friesian breed and lasted for 3 months. To assess the quality of milk, the following indicators were taken into account: the amount of fat, protein, lactose, dry matter, non-fat milk solids, urea, somatic cells, as well as acidity, freezing point, pH, analysis for ketone bodies. The milk production was calculated based on the results of the control milking. Our studies have shown that, from an economic point of view, the use of the investigated bedding material is most effective.
    Keywords Microbiology ; QR1-502 ; Physiology ; QP1-981 ; Zoology ; QL1-991
    Subject code 630
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Interaction between industry higher educational institutions and the customer of educational services

    Parshina Valentina / Kuznetsova Elena

    E3S Web of Conferences, Vol 135, p

    2019  Volume 04001

    Abstract: The purpose of the article is to develop a model for interaction between industry higher educational institutions and the customer of educational services in order to increase the human potential in the industry. The article deals with the specifics of ... ...

    Abstract The purpose of the article is to develop a model for interaction between industry higher educational institutions and the customer of educational services in order to increase the human potential in the industry. The article deals with the specifics of relations between the transport higher educational institutions and the company. To assess the quality of relations, the resource exchange model is suggested for use. The article formulates principles of interaction between the parties and indicators that can be used to assess the quality of the resources exchange. A model for interaction between the company’s bus iness units and higher educational institutions was proposed. The relations between the horizontal-structured corporation and educational institutions were modeled; the mathematical apparatus was selected to describe the contacts, indicators of satisfaction with the resources and the resultant indicator (satisfaction with the interaction) were proposed. The model will help to determine quantitative characteristics of the achieved contacts. Their introduction will make it possible to assess the original state of the contacts and proceed to functional design. Introduction of the concept of satisfaction with the resources and interaction in its individual lines will allow identifying the reserves to build on in order to optimize the contacts. The purpose of the modeling is to expand contacts between the higher educational institution and enterprises in the industry, to involve employees in innovation activities, to improve skills of the higher educational institution graduates in response to the needs of the industry. This article only looks at the interaction between industry higher educational institutions and business units of RZD OJSC, whereas recent years brought contacts between the university and many transport organizations that have specifics of market interactions described in the stakeholder theory.
    Keywords Environmental sciences ; GE1-350
    Subject code 650
    Language English
    Publishing date 2019-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Development of oil product contaminated wastewater treatment technology using sorbents based on mining waste

    Araslanova Lyaysan / Kuznetsova Elena / Tuktarova Irene / Nazarov Alexey

    E3S Web of Conferences, Vol 161, p

    2020  Volume 01030

    Abstract: One of the most common types of ecotoxicants is oil products - unidentified group of oil hydrocarbons and products of its processing. In this regard, the development of technology for obtaining new highly efficient and inexpensive sorbents for wastewater ...

    Abstract One of the most common types of ecotoxicants is oil products - unidentified group of oil hydrocarbons and products of its processing. In this regard, the development of technology for obtaining new highly efficient and inexpensive sorbents for wastewater treatment from oil products (including industrial waste) is an urgent problem. In this paper, the technology of wastewater treatment includes the use of composite sorbents based on tails-waste of Uchalinsky (UW) and Buribaevsky (BW) mining and processing plants (MPP), mica quartzite (MQ) of the Baymak field and montmorillonite clay (MC) and sodium humates (SH) obtained from waste of Tulgan brown coal. Using these sorbents, we investigated the efficiency of these sorbents in model wastewater treatment contaminated with oil from the Vozeyskoye oilfield of LLC Usinsk Neftegaz and real wastewater of “Bashneft” Ufa Oil Company. It is shown that the efficiency of treatment and the rate of adsorption of model wastewater containing oil products (8-50 mg/dm3) increases in a number of sorbents MQ < BAU < BW (UW) + MC < BW (UW) + MC+SH (BAU is a comparison sorbent - activated carbon) and reaches a maximum for MPP coated with SH. For real wastewater containing oil products of Ufa refinery (3-625 mg/l) adsorption activity increases in the number of MQ < MQ + MC < BW + MC < UW + MC. Thus, the most effective sorbents for real and model wastewater containing oil and oil products are sorbents based on waste from Uchalinsky MPP in the composition of MH (degree of purification 96.1 %), as well as sorbent: waste UW (BW) + MC modified SH (98.1 and 98.2 %, respectively).
    Keywords Environmental sciences ; GE1-350
    Subject code 660
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Effect of new bedding material on morpho-biochemical and immunological factors of gosling blood

    Sofronov Vladimir / Fayzrakhmanov Ramil / Danilova Nadezhda / Kuznetsova Elena

    BIO Web of Conferences, Vol 27, p

    2020  Volume 00052

    Abstract: The purpose of research and production experiment in the conditions of Akhmetov farm located in the Vysokogorsky district of the Republic of Tatarstan was to study the harmlessness of new sanitary bedding material and the effect on gosling broilers. The ... ...

    Abstract The purpose of research and production experiment in the conditions of Akhmetov farm located in the Vysokogorsky district of the Republic of Tatarstan was to study the harmlessness of new sanitary bedding material and the effect on gosling broilers. The experiment evidenced that a new sanitary bedding material made of woodworking waste, thermochemically and biotechnologically treated, does not have an irritating effect on the skin and mucous membranes of the eye, nor does it provoke allergic reactions in rabbits, but, on the contrary, improves certain morphobiochemical and immunological factors of gosling blood. Ultimately, this resulted in accelerated red blood cells by 6.94 %, hemoglobin – 5.20 %, total protein – 6.30 %, γ-globulin – 9.38 %, total calcium – 6.14 %, inorganic phosphorus – 5.31 %, glucose – 5.38 %, increased phagocytic activity by 2.24 %, phagocytic number – 4.37 %, and increased number of S. Marcescens-stimulated cells through the NBT test by 5.17 % compared with the control, respectively. The data obtained are consistent with the advanced livestock viability in the experiment by 1.8 %, as compared with the control.
    Keywords Microbiology ; QR1-502 ; Physiology ; QP1-981 ; Zoology ; QL1-991
    Subject code 630
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Regulation of environmental protection measures in the Caspian Sea region

    Yekimov Sergey / Bavykin Oleg / Kuznetsova Elena / Kucherenko Roman / Kucherenko Dmitriy

    E3S Web of Conferences, Vol 262, p

    2021  Volume 03002

    Abstract: Information obtained as a result of monitoring of water bodies is taken as a basis for legal regulation of economic activities related to environmental pollution. In the context of a globalized economy, the strengthening of environmental protection ... ...

    Abstract Information obtained as a result of monitoring of water bodies is taken as a basis for legal regulation of economic activities related to environmental pollution. In the context of a globalized economy, the strengthening of environmental protection measures in one of the neighboring countries often leads to the fact that the next plant will be built across the border, and its impact on the environment on a global scale will be the same. In this study, the authors studied the problem of finding new ways to solve the environmental problems of the Caspian Sea. The Caspian Sea belongs to Kazakhstan, the Russian Federation, Turkmenistan, Azerbaijan and Iran. to solve the environmental problems of the Caspian Sea, it is necessary to unify the environmental legislation of these countries, similar to the unification of the environmental legislation of the European Union countries.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Models of “joint consumption economy” in agro-industrial sector

    Platonova Elena / Fedotova Olga / Zhang Tianhui / Kuznetsova Elena / Musarskiy Mark

    E3S Web of Conferences, Vol 273, p

    approaches to development

    2021  Volume 08040

    Abstract: The aim of the article is to analyze the models of the joint consumption economy from the point of view of finding the applicability of such models in the agro-industrial sector of the economy as tools to increase its efficiency and competitiveness. The ... ...

    Abstract The aim of the article is to analyze the models of the joint consumption economy from the point of view of finding the applicability of such models in the agro-industrial sector of the economy as tools to increase its efficiency and competitiveness. The authors have described the models of joint consumption economy based on the analysis of the differences between the definitions of “joint consumption economy" and "sharing economy» in the works of researchers. Authors allocate the assets-based, service and financial models of joint consumption economy. The study shows that in the Russian agro-industrial sector there are certain reserves for increasing its efficiency and competitiveness while creating the favorable conditions by State for the continuation of the implementation of the models of joint consumption economy in the near future. These conditions should become the object of further research, as well as the choice of the most appropriate business models for the domestic agro-industrial sector.
    Keywords Environmental sciences ; GE1-350
    Subject code 330
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article: Effect of new bedding material on morpho-biochemical and immunological factors of gosling blood

    Sofronov Vladimir / Fayzrakhmanov Ramil / Danilova Nadezhda / Kuznetsova Elena

    BIO web of conferences. 2020, v. 27

    2020  

    Abstract: The purpose of research and production experiment in the conditions of Akhmetov farm located in the Vysokogorsky district of the Republic of Tatarstan was to study the harmlessness of new sanitary bedding material and the effect on gosling broilers. The ... ...

    Abstract The purpose of research and production experiment in the conditions of Akhmetov farm located in the Vysokogorsky district of the Republic of Tatarstan was to study the harmlessness of new sanitary bedding material and the effect on gosling broilers. The experiment evidenced that a new sanitary bedding material made of woodworking waste, thermochemically and biotechnologically treated, does not have an irritating effect on the skin and mucous membranes of the eye, nor does it provoke allergic reactions in rabbits, but, on the contrary, improves certain morphobiochemical and immunological factors of gosling blood. Ultimately, this resulted in accelerated red blood cells by 6.94 %, hemoglobin – 5.20 %, total protein – 6.30 %, γ-globulin – 9.38 %, total calcium – 6.14 %, inorganic phosphorus – 5.31 %, glucose – 5.38 %, increased phagocytic activity by 2.24 %, phagocytic number – 4.37 %, and increased number of S. Marcescens-stimulated cells through the NBT test by 5.17 % compared with the control, respectively. The data obtained are consistent with the advanced livestock viability in the experiment by 1.8 %, as compared with the control.
    Keywords calcium ; eyes ; farms ; glucose ; goslings ; hemoglobin ; inorganic phosphorus ; phagocytosis ; protein content ; viability ; wastes ; woodworking
    Language English
    Publishing place EDP Sciences
    Document type Article
    ZDB-ID 2673408-4
    ISSN 2117-4458
    ISSN 2117-4458
    DOI 10.1051/bioconf/20202700052
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Aspects of the cadets’ mental readiness forming during airborne training

    Labeschenkov Oleg / Kuznetsova Zinaida / Zekrin Fanavi / Komarova Svetlana / Kuznetsova Elena

    BIO Web of Conferences, Vol 26, p

    2020  Volume 00089

    Abstract: The mental readiness formation of cadets’ airborne training in military universities require a special attitude to the functional state indicators. There is a need to develop a specialized method of mental state psychoregulation. The mental readiness ... ...

    Abstract The mental readiness formation of cadets’ airborne training in military universities require a special attitude to the functional state indicators. There is a need to develop a specialized method of mental state psychoregulation. The mental readiness formation requires the study of pedagogical, psychological and physiological foundations. A questionnaire survey of the psychoregulation means importance for airborne training was conducted. The cadets give ambiguous answers to the questions of their mental state psychoregulation in airborne training. The first-year cadets have little idea about the mental readiness state, about the means of its regulation. The study of the functional state and body reserve capabilities with the use of innovative accessible and operational methods of rapid diagnostics allows correction of training and psychological effects on cadets. Taking into account physical, mental, and training loads and the tendency to increase them in airborne training requires current and operational control of the functional state. Options for including multidirectional exercises of the mental state psychoregulation in combination with audio sessions on M. A. Bendyukov method in the process of airborne training are considered.
    Keywords Microbiology ; QR1-502 ; Physiology ; QP1-981 ; Zoology ; QL1-991
    Subject code 796
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Study of the spectra of asymmetric triazines with growth-stimulating activity

    Builova Evgenia / Kuznetsova Elena / Rolnik Lyubov / Shaikhullin Irek / Aminova Gulia

    E3S Web of Conferences, Vol 176, p

    2020  Volume 03005

    Abstract: Derivatives of nitrogen-containing heterocycles, in particular compounds of symmetric and asymmetric triazines, are widely used in agriculture as regulators of plant growth and development. Among the derivatives, the most well-known use of symmetric ... ...

    Abstract Derivatives of nitrogen-containing heterocycles, in particular compounds of symmetric and asymmetric triazines, are widely used in agriculture as regulators of plant growth and development. Among the derivatives, the most well-known use of symmetric derivatives, however, they are difficult to biodegrade and accumulate in the soil, and as a result in the plants themselves. Therefore, asymmetric triazines, which are easily decomposed in the environment, are more promising in practical terms. Currently, it is very important to use environmentally friendly plant growth and development regulators that do not contain impurities, so much attention is paid to the identification of synthesized compounds of asymmetric triazines with a substituent in position 5 using UV, IR and Mass spectroscopy.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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