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Article ; Online: The Influence of Growth Regulators on the Productivity of Flax Plants

Olena Khodanitska / Oksana Shevchuk / Olesia Tkachuk / Volodymyr Kuryata / Stepan Polyvanyi / Oleksandr Matviichuk / Rostislav Kryklyvyi

Ecological Engineering & Environmental Technology, Vol 24, Iss 5, Pp 163-

2023 Volume 169

Abstract: Contemporary agrobiology is aimed at solving the problem of sufficiently stable agricultural crop yield, given the principles of eco-friendly nature use and mandatory monitoring of anthropogenic load on agrocenoses. Hormonal regulation of physiological ... ...

Abstract	Contemporary agrobiology is aimed at solving the problem of sufficiently stable agricultural crop yield, given the principles of eco-friendly nature use and mandatory monitoring of anthropogenic load on agrocenoses. Hormonal regulation of physiological functions, including the use of preparations based on phytohormones and modifiers of their activity, is one of the topical directions for tackling the problem of plant productivity. The article presents the research results of the effect of the inhibitor of antigibberellin action - chlormequat chloride - and the stimulator based on treptoleum phytohormones on the processes of morphogenesis, the formation of the photosynthetic apparatus, and the yield of flax plants. The plant height is established to decrease under the action of chlormequat chloride, and increase under the influence of treptolem. Both preparations caused an increase in the flax stem diameter. When applying growth regulators, the number of leaves and their total surface area, duration of functioning increased, which generally contributed to the improvement of the crop structure and flax plants productivity. Determination of the content of residual amounts of drugs was carried out on samples of leaves and stems of flax, while the complete absence or traces of chlormequat chloride was noted.
Keywords	productivity ; growth regulators ; morphogenesis ; oil flax ; residual content of substances ; Ecology ; QH540-549.5
Subject code	630
Language	English
Publishing date	2023-07-01T00:00:00Z
Publisher	Polish Society of Ecological Engineering (PTIE)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Usage of Worked Clay Absorbent as a Manifestation of an Ecologically Oriented Lifestyle

Olga Palamarchuk / Halyna Sakalova / Tamara Vasylinych / Lyudmila Lyubchak / Oksana Shevchuk / Oleksandr Matviichuk / Olena Khodanaitska

Ecological Engineering & Environmental Technology, Vol 23, Iss 2, Pp 90-

2022 Volume 96

Abstract: The article deals with the development of new eco-innovative technologies, evaluation of their effectiveness and the widest possible awareness of those categories of people who could effectively use the proposed technologies. It was found that the ... ...

Abstract	The article deals with the development of new eco-innovative technologies, evaluation of their effectiveness and the widest possible awareness of those categories of people who could effectively use the proposed technologies. It was found that the personal position of economic entities is the core of the structural organization of psychological readiness for ecologically oriented innovation and is manifested in the forms of free ecologically oriented will. The paper discusses the main methods of removal of nutrients from wastewater, presents promising technologies and techniques. It contains recommendations for optimal conditions for the precipitation of ammonia nitrogen from an ion exchange regenerator for further use as an ammonium fertilizer. The maximum efficiency of ammonium nitrogen removal has been established According to the results of the best options, the deposition of real ion exchange concentrates was carried out. The humidity level was set during the drying of mineral fertilizers. The moisture content determined the content of sediment, which is close to the number of water molecules to the formula of the fertilizer MgNH4PO4 ∙ 5H2O. Complex phosphate fertilizer struvit is characterized. A comparative agronomic evaluation of synthetic struvite was performed. The influence of struvite on the processes of germination of cultivated plants is carried out. The results show that the method of obtaining struvite does not significantly affect the processes of wheat germination, and the determining factor in the effectiveness of fertilizers is the method of its application and dosage.
Keywords	adsorption ; bioindication ; natural clay sorbents ; agroecological assessment ; Ecology ; QH540-549.5
Language	English
Publishing date	2022-03-01T00:00:00Z
Publisher	Polish Society of Ecological Engineering (PTIE)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The Efficiency of Small Reserves for the Conservation of Biological Diversity of Typical Landscapes of the Middle Pobuzhya

Oleksandr Matviichuk / Oksana Shevchuk / Liudmyla Holunova / Olena Khodanitska / Olesia Tkachuk / Stepan Polyvanyi / Tamara Vasylinych

Ecological Engineering & Environmental Technology, Vol 23, Iss 3, Pp 79-

2022 Volume 86

Abstract: One of the approaches to reduce the level of anthropogenic pressure on natural ecosystems is to form a network of protected habitats in areas that are intensively used by humans. An attempt was made to determine the abundance of flora and fauna and ... ...

Abstract	One of the approaches to reduce the level of anthropogenic pressure on natural ecosystems is to form a network of protected habitats in areas that are intensively used by humans. An attempt was made to determine the abundance of flora and fauna and environmental efficiency in the context of intensive agricultural development in the small Podillya reserve «Ivankivskyi». The flora and fauna of the territory on the outskirts of the village Ivanky of Vinnytsia district (Lypovets territorial community) were studied with the help of generally accepted and modified methods. It was conducted to determine the environmental value of the territory, the possibility of functioning within its protected area and at the same time preserving the forms of traditional use by the locals. The birds of the territory as the largest structural component of its fauna are studied in the most detail. The factual material was collected during field research for all the seasons of 2019-2021. Materials of scientific publications, professional literature, oral reports of specialists, etc. were processed. For all species of birds, the nature of the stay on the territory, belonging to different ecological and faunal groups were established: by nesting place and dominant food spectrum. The flora and fauna of this territory have not been studied yet, as well as its environmental value has not been determined. Animal species that are protected by the Red Book of Ukraine, international protection conventions are identified. The results of the study testify to the fact that a specific floral and faunal complex was formed within the studied area, which includes 105 species of higher vascular plants belonging to 75 genera, 26 families and 3 divisions: division Equisetophyta (1 species), Pinophyta (2 species), Magnoliophyta (102 species); 82 species of animals of the Chordata type: class Amphibia (2 species), Reptilia (1 species), Aves (68 species), Mammalia (11 species). The results presented in this publication can be the basis for the organization ...
Keywords	protected area ; landscape reserve ; ivankivskyi reserve ; flora ; fauna ; nature protection ; Ecology ; QH540-549.5
Subject code	590
Language	English
Publishing date	2022-05-01T00:00:00Z
Publisher	Polish Society of Ecological Engineering (PTIE)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Vessel-on-a-Chip

Oksana Shevchuk / Svitlana Palii / Anastasiia Pak / Nuria Chantada / Nuria Seoane / Mykhaylo Korda / Manuel Campos-Toimil / Ezequiel Álvarez

Cells, Vol 12, Iss 1297, p

A Powerful Tool for Investigating Endothelial COVID-19 Fingerprints

2023 Volume 1297

Abstract: Coronavirus disease (COVID-19) causes various vascular and blood-related reactions, including exacerbated responses. The role of endothelial cells in this acute response is remarkable and may remain important beyond the acute phase. As we move into a ... ...

Abstract	Coronavirus disease (COVID-19) causes various vascular and blood-related reactions, including exacerbated responses. The role of endothelial cells in this acute response is remarkable and may remain important beyond the acute phase. As we move into a post-COVID-19 era (where most people have been or will be infected by the SARS-CoV-2 virus), it is crucial to define the vascular consequences of COVID-19, including the long-term effects on the cardiovascular system. Research is needed to determine whether chronic endothelial dysfunction following COVID-19 could lead to an increased risk of cardiovascular and thrombotic events. Endothelial dysfunction could also serve as a diagnostic and therapeutic target for post-COVID-19. This review covers these topics and examines the potential of emerging vessel-on-a-chip technology to address these needs. Vessel-on-a-chip would allow for the study of COVID-19 pathophysiology in endothelial cells, including the analysis of SARS-CoV-2 interactions with endothelial function, leukocyte recruitment, and platelet activation. “Personalization” could be implemented in the models through induced pluripotent stem cells, patient-specific characteristics, or genetic modified cells. Adaptation for massive testing under standardized protocols is now possible, so the chips could be incorporated for the personalized follow-up of the disease or its sequalae (long COVID) and for the research of new drugs against COVID-19.
Keywords	COVID-19 ; endothelial dysfunction ; long COVID ; microfluidic system ; personalized COVID-19 follow-up ; vessel-on-a-chip model ; Biology (General) ; QH301-705.5
Subject code	616
Language	English
Publishing date	2023-05-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Blood ACE2 Protein Level Correlates with COVID-19 Severity

Oksana Shevchuk / Anastasia Pak / Svitlana Palii / Yana Ivankiv / Kateryna Kozak / Mykhaylo Korda / Sandor G. Vari

International Journal of Molecular Sciences, Vol 24, Iss 13957, p

2023 Volume 13957

Abstract: ACE2’s impact on the severity of COVID-19 is widely discussed but still controversial. To estimate its role in aspects of the main risk factors and comorbidities, we involved post-COVID-19 patients in Ternopil region (Ukraine). The recruitment period was ...

Abstract	ACE2’s impact on the severity of COVID-19 is widely discussed but still controversial. To estimate its role in aspects of the main risk factors and comorbidities, we involved post-COVID-19 patients in Ternopil region (Ukraine). The recruitment period was from July 2020 to December 2021. Medical records, treatment modalities, and outcomes were recorded and analyzed. The serum human ACE2 protein was measured with Cusabio ELISA kits (Houston, TX, USA). Statistical analysis was performed with SPSS21.0 software (SPSS Inc., Chicago, IL, USA). The level of the ACE2 serum protein was significantly higher ( p < 0.001) in patients with mild symptoms compared to a more severe course of the disease, and inversely had changed from 1 to 90 days after recovery. In patients with mild COVID-19, ACE2 levels significantly decreased over time, while among critical patients, it increased by 34.1 percent. Such results could be explained by ACE2 shedding from tissues into circulation. Loss of the membrane-bound form of the enzyme decreases the virus’ entry into cells. Our studies did not identify a sex-related ACE2 serum level correlation. The most common comorbidities were hypertension, cardiovascular diseases, respiratory diseases, and diabetes mellitus. All abovementioned comorbidities except respiratory diseases contribute to the severity of the disease and correlate with ACE2 blood serum levels.
Keywords	COVID-19 ; ACE2 ; severity ; post-COVID-19 patients ; comorbidity ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
Subject code	610
Language	English
Publishing date	2023-09-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Peculiarities of the anatomic structure of vegetable organs and productivity of linseed plants (linum usitatissimum l.) under the application of the growth stimulant

Olena Khodanitska / Oksana Shevchuk / Olesya Tkachuk / Victoria Shevchuk

ScienceRise: Biological Science, Vol 0, Iss 4(19), Pp 35-

2019 Volume 40

Abstract: The activity of growth processes in a plant organism is determined not only by the content of individual groups of phytohormones, but is predominantly determined by the balance of biologically active substances. Exogenous applying of compositions with ... ...

Abstract	The activity of growth processes in a plant organism is determined not only by the content of individual groups of phytohormones, but is predominantly determined by the balance of biologically active substances. Exogenous applying of compositions with phytohormone analogues or activity regulators influences on the metabolism processes and leads to changes in growth processes. The purpose of the research was to investigate the peculiarities of the anatomical structure of vegetative organs and the formation of the linseed yield under the influence of a complex stimulating drug treptolem. Materials and methods. Oil flax plants of ‘Debut’ variety were once treated with 0.03 ml/l water solution treptolem in the budding phase. Morphological parameters of flax plants were studied every 10 days. The anatomical structure of the vegetative organs of flax was studied on leaves of the same age and fragments of the stem in the middle part. Results. There has been established the effect of the growth stimulator with auxin, gibberellin, cytokinin compounds complex on the features of growth processes, anatomical organization of vegetative organs, productivity of linseed oil plants (Linum usitatissimum L.). The using of treptolem during the budding period leads to an increase in the productivity of linseed oil by the increasing of morphogenesis process of vegetative organs with simultaneous restructuring of anatomical structure of stems and leaves. The increase in the stem diameter due to the better development of bark, xylem, thickening of bast fibres enhances the resistance of linseed oil plants to lodging. Stimulator induces enhanced the development of the photosynthetic apparatus: formation of a larger number of leaves, prolongation of their active functioning, increasing of chlorenchyma cells size and improving of chloroplastogenesis. The enhancement of photosynthetic productivity of oil flax plants leads to an intensification of carpogenesis, an increase in yield and an improvement in the crop structure. The content of the ...
Keywords	linum usitatissimum l ; стимулятори росту ; морфогенез ; продуктивність ; структура врожаю ; Biology (General) ; QH301-705.5
Subject code	580
Language	English
Publishing date	2019-08-01T00:00:00Z
Publisher	PC Technology Center
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Effect of Foliar Sodium Selenate and Nano Selenium Supply on Biochemical Characteristics, Essential Oil Accumulation and Mineral Composition of Artemisia annua L.

Lidia Logvinenko / Nadezhda Golubkina / Irina Fedotova / Maria Bogachuk / Mikhail Fedotov / Vladislav Kataev / Andrey Alpatov / Oksana Shevchuk / Gianluca Caruso

Molecules, Vol 27, Iss 8246, p

2022 Volume 8246

Abstract: Selenium (Se) biofortification of aromatic plants is a promising strategy to produce valuable functional food with high biological activity and enhanced essential oil yield. The experiment carried out in 2021 and 2022 on A. annua treated with sodium ... ...

Abstract	Selenium (Se) biofortification of aromatic plants is a promising strategy to produce valuable functional food with high biological activity and enhanced essential oil yield. The experiment carried out in 2021 and 2022 on A. annua treated with sodium selenate or nano-Se sprayed on foliar apparatus demonstrated a significant increase in photosynthetic pigments, pectin, waxes, macro- and microelements and a decrease in malonic dialdehyde (MDA) accumulation. Contrary to literature reports, neither selenate nor nano-Se showed a beneficial effect on essential oil accumulation; the oil yield did not differ between the selenate treated and control plants but was halved by the nano-Se application. Extremely high variations in the number of essential oil components, as well as in the eucalyptol, artemisia ketone, camphor and germacrene D ratio in the 2021 and 2022 experiments were recorded. The analysis of the 2016–2022 data for oil yield and composition in the control plants revealed a direct correlation between the number of components and of solar flares, and a negative correlation between oil yield and the percentage of spotless days. Both control plants and plants fortified with selenium showed higher levels of germacrene D and lower levels of artemisia ketone in 2022, characterized by more remarkable solar activity compared to 2021. Nano-Se supply resulted in the highest percentage of germacrene D accumulation. The results of the present research highlight the importance of the solar activity effect on the essential oil yield and quality of aromatic plants.
Keywords	antioxidants ; minerals ; oil yield and quality ; selenium ; solar activity ; wormwood ; Organic chemistry ; QD241-441
Subject code	580
Language	English
Publishing date	2022-11-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Determination of Thermomechanical Stresses in Elements of Vehicles' Braking Systems

Oleksii Grevtsev / Ninel Selivanova / Pavlo Popovych / Liubomyr Poberezhny / Yurii Rudyak / Oksana Shevchuk / Liubov Poberezhna / Olena Skyba / Viktor Ostroverkhov / Oleksandr Shashkevych

Communications, Vol 24, Iss 1, Pp B1-B

2022 Volume 8

Abstract: The main objective of the study was to develop a model and analyze the thermomechanical behavior of the hub material of the vehicle brake disk. The simulation strategy was based on the solution of the three-dimensional problem of the theory of elasticity ...

Abstract	The main objective of the study was to develop a model and analyze the thermomechanical behavior of the hub material of the vehicle brake disk. The simulation strategy was based on the solution of the three-dimensional problem of the theory of elasticity for the case of effect of external loads and temperature fields on the metal structure element of the vehicle brakes. To solve this type of task of the theory of elasticity, the differential equations of the second order were used for the first time. Adaptation of the proposed model, completed in the article, has proved the correctness of use of these equations in modeling the thermomechanical processes with determination of stresses and displacements in unevenly heated rotary cylinders of the final length. The proposed method can be applied with high efficiency in stress strain state simulation of individual parts of vehicles.
Keywords	vehicles brakes ; temperature change ; metal structures of vehicles ; theory of elasticity ; brake defects and fracture ; thermomechanical stress ; Transportation and communications ; HE1-9990 ; Science ; Q ; Transportation engineering ; TA1001-1280
Subject code	600
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	University of Žilina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Species structure of the ephemeroids of the regional park of local importance «Nemyriv Pobuzhia» near the village of Hvozdiv

Oksana Shevchuk / Svetlana Kryklyva / Victoria Shevchuk / Olena Khodanitska / Olesya Tkachuk / Victoria Vergelis

ScienceRise: Biological Science, Vol 0, Iss 1 (22), Pp 39-

2020 Volume 43

Abstract: Analyzing the literature data, it was found, that the majority of ephemeroids that grown in the territory of Ukraine are directly or indirectly influenced by humans, which leads to accelerated rates of decrease in their number. Urban factors influence ... ...

Abstract	Analyzing the literature data, it was found, that the majority of ephemeroids that grown in the territory of Ukraine are directly or indirectly influenced by humans, which leads to accelerated rates of decrease in their number. Urban factors influence not only the species structure of populations, but also their absolute quantitative indicators. The purpose of the research was to study the floristic composition of ephemeroid plants in the territory of a landscape park of local importance «Nemyrivske Pobuzhya» near the village of Gvozdiv, Nemyriv, district of Vinnytsia region. Materials and methods. The study of the floristic composition of ephemeroid plants in the territory of the landscape park of local importance "Nemyrivske Pobuzhzhya" was carried out by the expedition-route method, as well as by the accidental-regulatory method - laying of accounting sites with an area of 1 m2. The systematic identification of plants was determined using a designator. The abundance of species was determined by the Gult-Drude scale (with the addition of A. Uranov and P. Yaroshenko). The meeting coefficient (%) was determined by the formula: R = a x 100 / n. Results. It was revealed, that on the territory of Nemyrivske Pobuzhya the structure of the ephemeroid plants includes 27 species of plants, belonging to 19 genus, 14 families, 12 orders and 2 classes. Such orders as Ranunculales (7 species or 25.9 % of the total ephemeroid species), Papaverales (4 species or 14.8 %), Liliales (4 species or 14.8 %), Amaryllidales (3 species or 11.1%), Capparales (2 species or 7.4 %) are represented by the largest number Anemone sylvestris L., Ficaria verna L., Viola odorata L., Galanthus nivalis L. were dominant among the species. Conclusions. It was established, that Galanthus nivalis L. is one species that is growing at the researched area and registered in the IUCN Red List of Threatened Species; and two species (Allium ursinum L. and Galanthus nivalis L.), included in the «European Red List». 6 species of ephemeroids are included in the Red Book of Ukraine: Leucojum vernum L., Allium ursinum L., Galanthus nivalis L., Crocus reticulatus Stev. ex Adams., Pulsatilla grandis Rupr. and Pulsatilla pratensis L. (Mill). 4 species of plants have the status of rare plants of regional importance: Anemone sylvestris L., Dentaria bulbifera L., Dentaria quinquefolia M. Bieb. and Primula veris L.
Keywords	ephemeroid plants ; species structure ; density ; coefficient of occurrence ; rare plants ; Biology (General) ; QH301-705.5
Subject code	580 ; 590
Language	English
Publishing date	2020-02-01T00:00:00Z
Publisher	PC Technology Center
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Calculation of the Vehicles Stress-Deformed State while Transporting the Liquid Cargo

Oleksii Grevtsev / Ninel Selivanova / Pavlo Popovych / Liubomyr Poberezhny / Oksana Shevchuk / Igor Murovanyi / Andrii Hrytsanchuk / Liubov Poberezhna / Vasyl Zapukhliak / Galyna Hrytsuliak

Communications, Vol 23, Iss 1, Pp B58-B

2021 Volume 64

Abstract: To calculate the stress-deformed state of road-tanker metal structures during the liquid cargo transportation, the solution for bending axially and symmetrically loaded circular plates is proposed, which is based on the theory of elasticity approach. ... ...

Abstract	To calculate the stress-deformed state of road-tanker metal structures during the liquid cargo transportation, the solution for bending axially and symmetrically loaded circular plates is proposed, which is based on the theory of elasticity approach. Dependencies for calculating stresses and displacements under arbitrary load law and support type are substantiated. Deformation of the support under the action of axisymmetric loading leads to appearance of a temperature field.
Keywords	trailers ; metal structures of vehicles ; liquid cargoes ; axisymmetric problem ; thermodynamically reverse process ; bend of a circular plate ; Transportation and communications ; HE1-9990 ; Science ; Q ; Transportation engineering ; TA1001-1280
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	University of Žilina
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