State Agrarian and Engineering University in Podilya
Recent publications
To date, sowing is one of the most urgent tasks, therefore, universal sowing equipment is widely in demand, which should ensure a uniform distribution of the number of plants per unit area to create the same conditions for development. Theoretical studies were carried out using the methods of theoretical mechanics, strength of materials, probability theory, mathematical analysis and modeling. Research is carried out on the basis of numerous implementations of the equations of continuum dynamics in applied engineering calculation programs - CAE systems. The article provides a theoretical analysis of the interaction of the soil layer with the surface of the working body of the seeder for the implementation of the technological process of sowing seeds of grain crops on the slopes. We have obtained a diagram of the forces acting on the soil during the working process, a diagram of the forces acting on the soil layer while moving along the slope, a diagram for determining the parameters of the working plane, initial and limiting conditions for the interaction of the working body with the soil environment, a diagram for determining the speed of the soil layer, a diagram changes in the speed of the soil layer on the slopes, the scheme of forces acting on the soil layer on the slopes, the dependence of the gravity force of the soil layer on the surface of the working body and the backing force on the angle of the slope, the dependence of the backing force on the angle. The initial and limiting conditions of the mathematical model of the technological process are considered, and a technique for implementing the mathematical model of the technological process of the work of the working body on slopes with different values of the angle of inclination of the working surface is developed. A mathematical model of the technological process of tillage on different types of agricultural landscapes by experimental working bodies has been developed. The initial and limiting conditions of the mathematical model of the technological process of processing are established, taking into account the slope of the working surface of the field.
One of the important mechanisms of world transformation in the context of the formation of sustainable development of society is the achievement and provision of innovative, inclusive, fair and high-quality models of development and institutionalization of science. The process of formation and implementation of a new modern policy in the field of science foresees the implementation of the paradigm of Open Science. The analysis of the key documents of the European Research Area and the European Higher Education Area, which define the policies and procedures for the development of Open Science, allowed to characterize the understanding of its features, goals, characteristics and indicators. The key provisions of the EU policy on the development of Open Science include the following: recognition of the priority of open research; ensuring the earliest possible exchange of knowledge and research data; promoting the involvement of research partners from industry, government and community groups; compliance of publications with the requirements “open as much as possible, closed as necessary”; recognition and reward of participation in research of citizens and end consumers; ensuring compliance with intellectual property rights. Active promotion of the ideas of Open Science through appropriate policies and procedures strengthens global cooperation and corresponds to the principles and goals of sustainable development of society, focused on improving the quality of human life in a favorable socio-economic environment and environmentally friendly, healthy, diverse environment.
Ticks are important vectors of numerous pathogens of medical and veterinary significance. The aim of the current study was to determine the prevalence of Babesia spp. and Borrelia burgdorferi s.l. in sled and pet dogs from Central and North-Eastern Europe. Neither Babesia spp. nor Borrelia burgdorferi s.l. infections were detected in sled dogs from seven countries (Poland, Lithuania, Latvia, Estonia, Belarus, Russia and Finland). The DNA of Babesia spp. was detected in 100% of symptomatic and 5.4% of asymptomatic pet dogs from Poland. Similarly, the DNA of Babesia spp. was identified in 82% of symptomatic and 3.8% of asymptomatic pet dogs from Ukraine. The DNA of Borrelia burgdorferi s.l. was detected in 4.4% of pet dogs. Molecular typing confirmed the presence of Babesia canis and Borrelia burgdorferi sensu stricto (s.s.) in selected samples. Four dogs were co-infected by B. canis and Borrelia burgdorferi s.l. Tick-borne pathogens constitute a serious health threat to pet dogs in Central and South-Eastern Europe, but were not observed among sled dogs from the same region of Europe nor in the Baltic countries.
The analysis of the current state of implementation of corn waste collection projects for the production of environmentally friendly fuel is performed. It is substantiated that the planning of the need for technical equipment of corn waste collection projects for the production of environmentally friendly fuel in a given season is based on the results of forecasting the basic events of the internal design environment. A method and a statistical simulation model for planning the need for technical equipment of corn waste collection projects for the production of environmentally friendly fuel have been developed. They provide an assessment of the timely performance of work in individual fields, as well as take into account the changing design environment, which causes the risk of the specific cost of disposal of corn waste. The developed simulation model of maize waste collection, which is available for disposal under the condition of maintaining the balance of organic carbon in the fields, has been tested for adequacy. Indicators of use of technical equipment and tendencies of change of risk of specific cost of alienation of corn waste are substantiated.
The indicators of pro- and antioxidant systems in sperm and sperm plasma of breeding boars of Large White breed and SS23 synthetic line were studied. Measurements of antioxidant enzyme activity, determination of lipid peroxidation (LPO) product content, and antioxidant factor were performed. Lipid peroxidation in the semen of healthy breeding boars was characterized by a stable level of activity, which is necessary to ensure normal reproductive functions. Additionally, there was a high content of low molecular weight thiols and proteins. The concentration of SH-groups in spermatozoa was higher (P≤0.05) compared to sperm plasma. The number of total, protein, and free SH-groups in the semen of boars of the synthetic line was higher (P<0.05) in relation to animals of the Large White breed. Low catalase (CAT) activity in the sperm was compensated by glutathione peroxidase (GPX). The content of ceruloplasmin (CP) in the sperm of boars was almost twice as high as that of sperm plasma. In spermatozoa, high content of reduced glutathione (GTH) was recorded, which was more than 3 times higher than in the seminal fluid. The main antioxidants of spermatozoa were superoxide dismutase (SOD), CP, SH-groups of proteins, and reduced content of GTH. We revealed that CAT is a key enzyme that neutralizes excess hydrogen peroxide in boar semen. In contrast, in sperm, hydrogen peroxide was inactivated mainly by GPX. Further research on the mechanisms of action of reactive oxygen species on boar semen will help to develop effective methods for sperm storage and successful fertilization of oocytes.
The main purpose of the academic paper is to analyze the dynamics of microfinance services and assess their impact on the entrepreneurial activity of small and medium-sized enterprises and the consequences for the population. Methods of generalization, analysis, comparison, correlation and regression analysis have been used in order to achieve the purpose outlined. The academic paper considers the impact of microfinance services on the performance of small and medium-sized enterprises in the form of net profit. The results have showed that the impact of the cost of microfinance services on the development of financial activities of small and medium-sized businesses have a positive result, and, when using the proposed regression equation, the company will receive positive results in 2020-2024. The conducted correlation analysis of the impact of microfinance services on the level of the average salary of the population of Ukraine has revealed a high level of dependence of citizens on loans obtained. This is confirmed by the high correlation coefficient.
The article examines modern state and prospects of the development of organic market in the context of rationalization of the available natural-resource potential of Ukraine. Basing on the analysis of key organic production indicators it is relevant to conclude that during last year’s there is stable positive dynamics in growing of the area of farmlands that take part in the certified reduced production. Due to the improvement of the organic production recycling the level of organic production consuming and number of certified manufacturers have significantly increased. Consumers of Ukrainian organic production are predominantly the EU countries. Ukraine is interested in the organic market development and there are inevitable resources that can be found in every region of the country. We have characterized the legal principles that enable the organic market and the establishing of relation that are linked to the organic production development which are regulated by the Law of Ukraine and other legislative acts that are related to the issue. Basing on the data of the article and estimation of the organic production consuming level in Ukraine in 2010-2019 there were evaluated forecast indicators of the Ukrainian organic market capacity until 2023.
The article considers the results of research on common beans varieties (Phaseolus vulgaris L.), their productivity and quality indicators in the Western Forest-Steppe. The results of biometric analysis show that bean plants differed in terms of variety. According to the height of the plant, the varieties were distributed as follows: low (< 51 cm) – Galaktyka, Perlyna, Shchedra, Mavka, Otrada, Nespodivanka, Pervomaiska, Yuvileyna 287, Stanychnaya, Nadiya, Bukovynka; medium (51–70 cm) – Kharkivska shtambova, Veselka, Dokuchaevska, Dniprianka. The height of attachment of the lower bean was the highest in the varieties Galaktyka and Stanychnaya – 16,6 cm, in Otrada variety – 16,3 cm, the lowest in the Dniprianka variety – 7,7 cm. At the same time, the height from the soil surface to the tip of the lower bean was the highest in the Perlyna variety – 6,9 cm, due to the length of the beans 7–8 cm. While in the variety Stanychnaya, due to the length of the beans 12–15 cm, this fgure was 4,9 cm. The lowest height from the soil surface to the tip of the lower bean was in the Panna variety – 1,8 cm and the Dniprianka variety – 2,3 cm, respectively. It was found that the largest number of internodes was in the variety Nespodivanka – 19,3 pieces, the lowest in the varieties Panna – 7,0 and Veselka – 8,8 pieces. The number of branches was the largest in the variety Slaviya – 4,4 pieces, the smallest in the variety Stanychnaya – 2,9 pieces, in the varieties Panna and Galaktyka – 3,1 pieces. The largest number of beans on the plant is set in the Nespodivanka variety – 26,8 pcs., the smallest in the variety Stanychnaya – 8,2 pcs. The studied varieties by weight of 1000 seeds are divided into groups: small (101–200 g) – Perlyna, Shchedra, Nespodivanka; medium (201–400 g) – Kharkivska shtambova, Mavka, Veselka, Otrada, Dokuchaevska, Yuvileyna 287, Pervomaiska, Dniprianka, Bukovynka, Nadiya; large (401– 800 g) – Galaktyka and Stanychnaya. The yield of beans depended on the characteristics and potential of the studied varieties. The highest yield of bean grain on average in 2012–2018 was obtained in the studied varieties: Perlyna – 2,61 t/ha, Kharkivska shtambova – 2,57 t/ ha, Nespodivanka – 2,33 t/ha, Mavka – 2,34 t/ha, Pervomaiska – 3,41 t/ha and Nadiya – 2,36 t/ha. Depending on the variety, the bean grain contains crude protein in the range of 18,75 % in the Pervomaiska variety to 23,38 % in the Slavia variety. The fber content is 3,7–5,5 %, ash – 3,29–3,94 %, BER – 55,5–59,9 %. Key words: common bean, productivity, variety, plant height, height of attachment of the lower bean, number of internodes, beans, grain, weight of 1000 seeds, yield, grain quality indicators.
Purpose: The study’s purpose was to examine the management of agri-food enterprises’ resource-saving development to minimize potential imperfections in managing material and human resources and improve data quality.
Citation: Gorzelany J, Gorzelany–Dziadkowiec M, Luty L, Firlej K, Gaisch M, Dudziak O, et al. (2021) Finding links between organisation’s culture and innovation. The impact of organisational culture on university innovativeness. PLoS ONE 16(10): e0257962. The objective of the paper is to diagnose organisational culture of selected universities and analyse its impact on the innovation processes within them. The subject matter of the study was organisational culture and innovation at universities. The subjects were four selected universities in Poland, Austria, Germany, and Ukraine. The paper provided a definition of organisational culture and its typology. It further discussed the organisational culture of universities and the relationships between organisational culture and innovativeness. The literature review provided foundations for building a model for the formation of a type of organisational culture at universities that is innovation-friendly, which is the added value of the paper. It offers actions worth taking to shape innovation-friendly culture at universities. It is particularly important during difficult time of changing labour market, when universities greatly impact the attitudes of young people. The knowledge of how to shape innovation-friendly organisational culture at universities is necessary for academia to profile future employees in times of continuous changes. To investigate the relationship between organisational culture and the innovativeness of universities, we designed an original survey questionnaire [S1 File]. Organisational culture was diagnosed with the Organizational Culture Assessment Instrument by K.S. Cameron and R.E. Quinn. The analyses were conducted in Dell Statistica v. 13.1 (StatSoft Polska). We normalised data from the Likert rating scale using Kaufman’s and Rousseeuw’s formula. We used Spearman’s correlation coefficient and Kendall’s W to calculate correlations. The research shows that the investigated Polish and Austrian universities are dominated by hierarchy and market cultures. On the other hand, the German and Ukrainian universities host all cultures, but clan and adhocracy dominate there. Moreover, the analyses demonstrated that although the adhocracy culture was the least visible in the investigated organisations, it contributes to university innovativeness the most. The conclusions were used to build a model for promoting innovation-friendly organisational culture at universities. The model contains answers to the research questions. In addition, it offers guidelines for shaping organisational culture to bolster innovation at universities. The research identified relationships between organisational culture and university innovativeness and components that create innovation opportunities at universities as its contribution to management theory. When applied in practice, the guidelines can help form the university’s organisational culture bottom-up.
The paper explores how companies from Central and Eastern Europe adopt assurance practices to provide accountability for sustainability. Drawing on modified coding rules from prior research, a conventional content analysis of 36 assurance statements companies from nine countries was conducted. The results imply differences in the content of reports, processes, and implementation of the standards. Exclusively large and multinational enterprises from the energy sectors domiciled in Poland and Hungary are a typical portrait of a company from the study’s sample, striving to issue and assure sustainability reporting. Of the nine countries represented in the study, sustainability assurance statements of companies from Poland, Hungary, and Romania tend to excel in terms of quality. The vast majority of assurance providers belong to the Big Four, who use ISAE3000 as opposed to AA1100AS. Yet, irrespective of the assurance provider type, stakeholders are neglected. It is argued that just transferring the experience of financial auditing to the field of sustainability, which, by and large, has taken place, is not an option. Authors state that following this route, we are heading in the wrong direction, and in technical terms, the wider proliferation of AA1100AS and its principles, with greater emphasis on reasonable assurance as opposed to the limited and enhanced role of stakeholders, are vital to get back on track. The paper contributes to the emerging literature on accountability standards and stresses the need to enhance sustainability-related assurance.
The article is devoted to the problem of the reduction of tubers mechanical damages while providing qualitative indicators of the potato heap separation process. Theoretical and experimental dependences of the influence of design and kinematic parameters of the machine operation on the quality performance are obtained. Within the field of experimental studies, a field installation was made to investigate the potato harvester as a whole on the efficiency of separation, the degree of damage, the magnitude of losses and the total capacity for aggregation. Comparison of the results of theoretical and experimental studies showed that the developed mathematical model of the process of separation of potato heap is adequate.
Studies were conducted on the operation of a plow with a disk disintegrator in a unit with an MTZ-82 tractor on black soil with a flat relief on soybean stubble with the amount of plant residues from 300 to 400 g/m2. During the research, the following parameters were changed: the disk approach angle, the disk section installation height, and the tractor speed. As a result of the study, it was found that at the speed of a plow with a disk disintegrator from 4 to 5 km/h, the depth of plant residues embedding is maximum and ranges from 15 to 19 cm, while fuel consumption becomes minimal in the range from 18 to 30 kg/ha.
Iodine is a vital trace element that must be constantly and daily supplied with food to the organism. Currently, the amount of food that can provide the organism with the required amount of iodine is insufficient. The purpose of the study was to investigate changes in organoleptic, microbiological, and biochemical parameters of kefir made with the addition of iodine during its refrigeration storage. It was found that during the storage of samples of kefir with iodine there is a slowdown in the reproduction of lactic acid bacteria, compared with the control sample. In particular, the number of lactic acid bacteria during the first two days of storage increased 1.3 times in the experimental sample and 1.5 times in the control sample of kefir. After 12 days of storage, the number of lactobacilli in the test sample of kefir increased 2.5 times, and in the control 3.2 times, compared with the amount in fresh kefir. Similar patterns were observed in determining the development of yeast. In particular, the reproduction rate of yeast in the control sample of kefir was, on average, 1.3 times faster (8 – 12 days), compared with yeast in the experimental sample. It was also found that during the 12-day storage period at a temperature of +6 °C, the titrated acidity in kefir with iodine increased 1.4 times, and in the control 1.6 times and was 130.5 °T and 154.1 °T, respectively. At such acidity values, the test sample of kefir still met the requirements of the standard, and the control was 24.1 °T higher. In this case, kefir containing iodide had better organoleptic characteristics during 12 days of storage. Produced kefir with the addition of iodine can be considered a functional product to provide the population with sufficient iodine.
Over the last few years, hydrogen energy has shifted from a little-studied field to the main one with which leading western countries associate the prospects of their national economies. The reasons are the unprecedented pace of development of hydrogen technologies. It turned out that they are able to provide significant reductions in greenhouse gas emissions, and thus bring closer the solution to the problem of global climate change. The first and foremost purpose of our investigation is to reveal that our country has ample opportunities to become the main supplier of hydrogen to the EU market, overtaking North Africa in the competition. Using the methods, authors studied the targets of the European funds towards development of energy production from biohydrogen, studied the potential for the implementation of hydrogen projects, possibilities of financing them and a potential ability of Ukraine to form internal and external markets for hydrogen energy. One of the main issues of Ukraine's possible participation in Europe's hydrogen energy program as a supplier and producer of renewable hydrogen is the possibility of its technically safe and cost-effective transportation to EU countries. As a conclusion to the authors’ research, the path of the hydrogen industry development in Ukraine will help to receive additional investments in the Ukrainian economy for creation of new capacities for "green" hydrogen production. In return, Europe will receive research and evolution of the bioenergy component of the economy, which will permit the safe transition of Europeans to an affordable, competitive, and stable energy system.
The paper demonstrates the results of the experimental research conducted during the first semester of the academic year 2020/21, including the remote learning period due to the Covid19 pandemic situation, at the lessons of English for Specific Purposes (ESP) (with students of Specialties 208 “Agrarian Engineering” and 141 “Electrical Engineering and Energy”) at the State Agrarian and Engineering University in Podilia, Kamianets-Podilskyi, Ukraine. The research basically analyses how TED (Technology, Entertainment, and Design) Talks impact university students’ listening comprehension and speaking skills. Online study support for ESP was personally created by the educators as a four-credit course due to ECTS in the Moodle Learning Management System (LMS) with the application of TED Talks, which was used for study purposes on the B1 level. The research sample is represented by 50 students majoring in Agrarian Engineering and 50 students majoring in Electrical Engineering and Energy, all of them enrolled in the mandatory subject of ESP. The subjects (students) were divided into the experimental and control groups. At the beginning of the course, the students wrote the pre-test, for their start level to be evaluated, and at the end of the semester - the post-test was done to check the achievements and probable benefits of TED Talks. The experiment results demonstrated the improvement of both groups while it was proved statistically that the experimental group showed better outcomes both in listening comprehension and speaking skills respectively. The questionnaires, distributed among the students, consisted of 5 questions, where they expressed their personal opinions about the e-learning process, and according to which the TED Talks influence on their listening and speaking skills was evaluated. The feedback of the questionnaires proved that the students mostly had a positive attitude concerning engaging TED Talks into the learning process, especially those who were involved in the experiment.
Since the middle of the last century, scientists have been interested in the mechanisms of regulation of cell division, differentiation and aging of cells. The first objects of study were insects, helminths and other living organisms. From the very beginning, in the biology of cell development and regulation, scientists have attached leading importance to genetic factors. Later, more and more experience was gained on the influence of intracellular factors, metabolic changes and exogenous pathogens on the programmed cell death. Recent research on cell biology and pathology has focused on the study of apoptosis. The first described phenomenon of programmed cell death was apoptosis. Subsequent studies were aimed at the study programmed cell death. This review will provide an opportunity to consider the biological mechanisms of programmed cell death, differences and species characteristics. The author described the clinical aspects of apoptosis, necroptosis and pyroptosis and their importance in the formation of cellular homeostasis. In the present review article simple classification system, where the cell death entities are primarily categorized into programmed cell death. Multiple mechanisms and phenotypes compose programmed non-apoptotic cell death, including: autophagy, entosis, methuosis and paraptosis, mitoptosis and parthanatos, ferroptosis, pyroptosis NETosis and necroptosis. Changes of cellular regulation at development of pathologies at people and animals are considered. Cell biology includes a variety of mechanisms of programmed aging and death. Modern research is aimed at deepening the study multiple mechanisms and phenotypes compose programmed. Cells. will certainly be taken into account by the Nomenclature Committee on Cell Death. Cellular regulation is associated with a variety of physiological mechanisms of development, and is also important in processes such as inflammation, immune response, embryogenesis maintenance of tissue homeostasis. Study of factors of influence and mechanisms of regulation of aging of cells opens a curtain for development of the newest means of diagnostics of pathologies and development of pharmacological means for correction of cellular mechanisms at development of pathologies.
Background and aim: Mastitis, an inflammation of the mammary gland, is an ongoing problem in dairy herds. In this study, we determined the sensitivity of Staphylococcus aureus cultures of different biological origins to commercial bacteriophages and phages of S. aureus var. bovis which were isolated on dairy farms, to create a drug for the treatment of mastitis in cows. Materials and methods: We used cultures of S. aureus isolated from different habitats, and other types of staphylococci isolated on dairy farms. As antibacterial agents, the commercially available bacteriophages staphylococcal bacteriophage and Intestifag and field strains of phages Phage SAvB07, Phage SAvB08, Phage SAvB12, and Phage SAvB14 were used. Evaluation of their lytic properties was performed using the drip method. Results: The drug Intestifag lysed cultures isolated from human habitats and archival strains of S. aureus No.209-P and S. aureus (ATCC 25923) in 91.8%-100% of cases. Staphylococcal bacteriophage killed 3.6 times fewer cultures of S. aureus isolated from humans than Intestifag and did not affect the growth of archival strains. Neither drug lysed cultures isolated from cows or cultures isolated from dairy products sold in agri-food markets. Phage SAvB14 lysed 92.7±8.3% of S. aureus isolated from the mammary glands of cows and 69.2±6.4% of cultures isolated from dairy products sold in agri-food markets. Phage SAvB12, Phage SAvB08, and Phage SAvB07 lysed 1.2-1.7 times fewer cultures isolated from the mammary glands of cows and 6-18 times fewer cultures isolated from dairy products, compared with Phage SAvB14. Phages of S. aureus var. bovis can infect staphylococcal species such as Staphylococcus epidermidis, Staphylococcus haemolyticus, Staphylococcus saprophyticus, and Staphylococcus xylosus. The widest range of hosts was found for Phage SAvB14, which indicates its polyvalence. Conclusion: The biological origin of staphylococcal strains must be considered when developing effective phage therapy. Phage SAvB14 appears to be a good candidate for the development of a drug for the treatment of mastitis in cows.
The presence of Staphylococcus aureus in raw milk is considered a direct danger to consumers. Almost all types of dairy products normalize the amount of Staphylococcus aureus in 1 g (cm3) of product, due to their ability to produce thermostable enterotoxins. The aim of the study was to investigate the role of incision of teats of healthy and sick mastitis cows and milking equipment for irradiation of cow's milk with Staphylococcus aureus. Sanitation of milking equipment in farms was carried out with alkaline detergents based on sodium hypochlorite and acid based on phosphoric acid. Blood agar with 5 % sodium chloride was used to isolate staphylococci from washes and milk. Species identification of pure cultures of staphylococci was performed using RapID Staph Plus kits. At the same time before and after milking the skin of teats with Udder Wash and Udder Forte reduces the incidence of Staphylococcus aureus to 4.1 ± 0.3 % of cases. Quantitative determination of staphylococci, including golden on the skin of the teats revealed a decrease in the latter from 283.5 ± 21.2 to 27.6 ± 2.1 CFU/cm3 flush after milking. It has been established that the number of staphylococci, including golden, on the skin of teats increases sharply under subclinical or clinical ointment. Thus, it was found that in the subclinical form of staphylococcal mastitis from the skin of teats isolated S. aureus in the amount of 790.6 ± 65.4 CFU/cm3 of wash. At the same time, in the clinical form of mastitis, the amount of S. aureus increased, on average to 8 thousand CFU/cm3 of flush. It was found that under the condition of sanitary treatment of milking equipment with alternate use of alkaline and acid detergents and disinfectants, only 25 % of washes were staphylococci, and gold – up to 5 % of samples. It was found that in 43.7 ± 3.9 % of raw milk samples Staphylococcus aureus was not detected in 1 cm3. The number of milk samples containing Staphylococcus aureus up to 100 CFU/cm3 was 39.1 ± 3.3 %, and 17.2 ± 1.4 % of milk samples were contaminated with Staphylococcus aureus in the amount of 101 to 200 CFU/cm3. Therefore, the presence of more than 200 CFU/cm3 in freshly milked Staphylococcus aureus in milk indicates the ineffectiveness of antimastitis measures, skin remediation of teats and sanitation of milking equipment.
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57 members
Oleg Kucher
  • Department of Management, Public Management and Administration
Serhii Yermakov
  • Research Laboratory "DAK GPS"
Лапчинський Віталій
  • Department of Horticulture and viticulture
Olha Volodymyrivna Chaikovska
  • Department of Foreign Languages
Khmelnytskyi, Ukraine