bluuebunny/crossref_metadata_2025_split huggingface dataset:
The ability of <I>Bacillus mojavensis</I> PS17 to grow and synthesize exogenous enzymes at low temperatures
Authors: Diabankana R. G.C. , Chernov A. N. , Validov Sh. Z. , Afordoanyi D. M. 
Published: November 2022

Relevance. Microorganisms growing at low temperatures play a key role in the biochemical cycles in cold ecosystems. These microorganisms secrete enzymes with a wide range of activity at low temperature, which can be used in various fields of the biotechnology industry.Methods. To study the psychrotolerant ability of Bacillus mojavensis PS17 bacteria, a bacterial suspension prepared from a nocturnal culture was used. The ability of Bacillus mojavensis PS17 to grow at low temperatures was studied by kinetic measurement of optical density (OD) at a wavelength (l) of 595 nm. For this purpose, bacterial suspension of Bacillus mojavensis PS17 was inoculated into a basal medium and incubated at various low temperatures (5, 8, and 12 ± 1 °C) for 12 hours. The growth curve was measured every hour using a spectrophotometer. The activity of exogenous enzymes was determined by inoculation and incubation at a temperature of 4 ± 1 °C a Bacillus mojavensis PS17 bacterial suspension on a basal medium amended with 1% of different substrates such as milk powder, Tween-80 and sodium carboxymethylcellulose.Results. The results showed that Bacillus mojavensis PS17 can grow at low temperatures. Evaluation of the activity of exogenous enzymes showed that the isolated enzymes of the studied strain do not lose their properties in conditions of low temperatures. The studied psychrotolerant properties of Bacillus mojavensis PS17 bacteria can be used in various manufacturing biotechnology such as food, textile and pharmaceutical.
The effect of tank mixture of herbicides on the contamination of crops and productivity of spring wheat
Authors: Dyachenko V. V. , Nikiforov V. M. , Nikiforov M. I. , Mameev V. V. , Sazonova I. D. , Sychev S. M. 
Published: November 2022

Relevance. The main advantage of this method is its high biological efficiency (up to 90% or more) against the background of a quick payback from a significant increase in production due to the stored harvest. At the same time, in some cases, it becomes possible to manipulate the timing of the use of herbicides, taking into account their selectivity, operational qualities, as well as the industrial employment of the forces and means of an agricultural enterprise engaged in weed control. Therefore, the study and selection of modern herbicides in the fight against weeds is an urgent task of great practical importance.Methods. The object of research is a variety of spring soft wheat Zlata. The predecessor is potatoe. The seeding rate is 5.5 million. The scheme of the experiment included 2 options: 1) control (without the use of herbicides); 2) the use of a tank mixture of herbicides («Ballerina»+ «Bomba» + «Lastic Extra»). The sowing area of the crop is 3 ha, the area of the accounting plots is 50 m2, the repetition of the experiment is 3 times.Results. The conducted studies have shown that under experimental conditions, the share of juvenile monocotyledonous weeds in spring wheat crops accounted for 68.9%, of juvenile dicotyledonous weeds — for 31.1% of the total number. The most widespread among them were: Echinochla crusgalli — 68.9%, Chenopodium album — 13.1%, Amaranthus retroflexus — 6.2% and Galeopsis tetrahit — 5.2%. The use of a tank mixture of herbicides «Ballerina» + «Bomba» + «Lastic Extra» made it possible to reduce the number of weeds by 90.4–94.1%, reduce the loss of biological grain yield by 14%, ear weight —by 7%, productive bushiness — by 5%, weight of 1000 grains —by 2%, and also increase the yield of spring wheat grain by 0.68 t/ha and get an additional profit of 1.9 thousand rubles/ha.
Study of the antioxidant properties of enriched bakery products
Authors: Fatkullin R. I. , Kalinina I. V. , Naumenko N. V. , Popova N. V. , Naumenko E. E. , Ivanisova E. , Vasiliev A. K. 
Published: November 2022

Relevance.Bread products are socially important foodstuffs, physically and economically accessible for the majority of population groups in the Russian Federation and many other countries. One of the directions could be the enrichment of bakery products with natural antioxidants of plant origin. Polyphenolic substances, including flavonoids, have priority among plant antioxidants. Today several approaches to enrichment of bakery products with polyphenols and flavonoids are known, each of them characterised by their own advantages and disadvantages. The basis of this study was to evaluate the possibility of using different bakery enrichment approaches to obtain products with given antioxidant properties.Methods. Six samples of bakery products, five of which were enriched with food ingredients— sources of antioxidants— were identified as objects of research. The total content of polyphenols and flavonoids was determined in all the examined samples using spectrophotometric method as well as the antioxidant activity using DPPH-method.Results. Studies have shown that the use of crushed green tea leaves, cedar flour, whole-milled flour from germinated wheat grain as enriching agents allows a significant increase in the total content of polyphenols in the finished samples of baked products, by 46–75% in relation to the control. All the samples of enriched products could be classified as functional foods, as the satisfaction of the daily requirement for flavonoids was more than 15% of the recommended level. At the same time, the use of individual enriching substances such as taxifolin allows to significantly increase the antioxidant activity of baked products (more than by4 times) and with a high probability to steadily regulate it. In general, in all investigated samples of enriched bakery products increase ofthe antioxidant activity by more than 2 times in relation to the controlwas registered. The results confirmed the possibility and feasibility of using the proposed approaches of bakery products enrichment to obtain products with antioxidant properties.
Preventive effect of the drug Santomectin against psoroptosis of sheep in the plain zone of the Republic of Dagestan
Authors: Ustarov R. D. , Aliyev A. Yu. , Kabardiev S. Sh. , Magomedshapiev G. M. 
Published: November 2022

Relevance. Psoroptosis of sheep and goats is a chronic disease caused by the Psoroptes ovis, occurring in a subacute, acute, chronic, sometimes generalized form. It is characterized by a lesion in sheep and goats of thick-haired parts of the body, in goats — sometimes the auriclesIn view of the above, the determination of the most cost-effective modern broad-spectrum acaricidal and antiparasitic agents in the conditions of the Caspian region of the Russian Federation is an urgent task.Мethods. The prophylactic effect of the antiparasitic drugs Santomectin and Ivermek was studied on 90 animals, divided into 2 experimental groups and one control group. Animals of the first group were injected with the drug Ivermek (ivermectin — 10 mg and tocopherol acetate — vitamin E — 40 mg) once, at a dosage of 1 ml of the drug per 50 kg of body weight of the animal. The second group was administered Santomectin (1 ml of the preparation contains 5 mg of ivermectin and 125 mg of closantel). Santomectin was injected into the subscapular region intramuscularly, once, at a dose of 1 ml of the drug per 50 kg of animal body weight. The third control group was not treated with chemoprophylactic drugs. Animals were observed for 30 days.Results. The data obtained in the course of production experiments on the effect of the acaricidal activity of the preparations indicate that the use of the Santomectin preparation with a single injection with an active substance concentration of 0.1 mg ivermectin per 1 kg of live weight gives a preventive effect against Psoroptes ovis by 16.7% higher than the use of the drug “Ivermek” at a concentration of 200 µg of ivermectin per 1 kg of live weight.
The effect of gamma-octalactone supplementation on the content of chemical elements in the muscles and liver of broiler chickens
Authors: Kurilkina M. Ya. , Rakhmatullin Sh. G. , Duskaev G. K. 
Published: November 2022

Relevance. In recent years, a large number of new herbal preparations have appeared on the market, including gamma-octalactone. It is a naturally occurring compound isolated from Eucalyptus viminalis leaf extract. This compound has a wide range of therapeutic properties, which is associated with its antiinflammatory, antiseptic effect, stimulates appetite, increases the secretion of digestive enzymes and increases performance in animals.Materials and methods. The paper studied the features of the accumulation of chemical elements in the body tissues of broiler chickens when the compound gamma-octalactone was included in the diet. The studies were carried out on broiler chickens of the Arbor Acres cross at the age of 7–42 days. According to the scheme of the experiment, inthe diet of chickens of the 1st, 2nd and 3rd experimental groups was added gamma-octalactone at a dosages of 0.05, 0.1 and 0.2 ml/kg of b.w./day. The elemental composition of biosubstrates was studied using atomic emission and mass spectrometry.Results. It was found that the addition of gamma-octalactone contributed to the redistribution of chemical elements in the body tissues of the experimental poultry. In particular, the broilers of the experimental group that received gamma-octalactone at a dosage of 0.05 ml/kg of b.w./day had higher concentrations of B, Co, Ni, Se, V, Zn in the pectoral muscles. An analysis of the concentrations of the main essential elements in the thigh muscles of broiler chickens showed that feeding gamma-octalactone at a dosage of 0.05 ml/kg of b.w./day was accompanied by a significant increase in the content of Ca, Na, Fe, Si and Zn and a decrease in the levels of Cr, Cu and Ni relative to poultry of the control group. There was also a significant increase in the concentrations of Cu, Fe, Se, Zn, Mg, P in the liver of chickens of the experimental group, who received gamma-octalactone in the diet at a dosage of 0.1 ml/kg of l.w./day, against the background of a decrease in the concentrations of Si and Na.
The effect of the combined use of gammaoctalactone and chlortetracycline in the broiler diet: live weight, feed efficiency and the microbiome of the caecum
Authors: Duskaev G. K. , Rakhmatullin Sh. G. , Kosyan D. B. , Rusakova E. A. , Kvan O. V. , Levakhin G. I. 
Published: November 2022

Relevance, materials and methods. The experimental scheme included the control group — the main diet (MD); group I (positive control) — MD + chlortetracycline (20%) 0.63 g per 1 kg of body weight for 20 days; group II — MD + gamma-octalactone at a dosage of 0.1 ml/kg of b.w./day; III group — MD + gammaoctalactone + chlortetracycline (20%).Results. In the course of research, the advantage of the live weight of experimental broilers over the control was established. The broilers that received gamma-octolactone + chlortetracycline with the main dietwere distinguished by the greatest live weight (16.5% more than in the control) . A similar situation was observed in terms of live weight gains. Broilers of the experimental groups ate more feed (by 3.23–8.47%), against the background of low feed consumption per 1 kg of live weight (by 6.38–10.6%) compared to the control. Broilers from group III had a higher content of erythrocytes (by 12.6–30.7%) and the weight of the spleen. The microbial profile of group III broilers (a combination of gamma-octalactone and chlortetracycline) was represented by microorganisms belonging to 4 phylum. The dominant phylum was Firmicutes (81.3%). Comparison with the control showed that the combination of substances reduced the number of bacteria of this phylum by 4.46%, against the background of an increase in the number of representatives of the Bacteroidetes phylum by 9.32% relative to the control. There was an increase in representatives of the genera Alistipes, Lactobacillus and unclassified genera of the family Clostridiales, while the number of representatives of unclassified genera of the family Ruminococcaceae decreased.
Optimized crop rotation schemes for the steppe zone of Republic of North Ossetiа — Аlania
Authors: Mamiev D. M. 
Published: November 2022

Relevance. The most important condition for the growth of crop production is the correct use of arable land, the improvement of the structure of areas under crops and the optimization of crop rotation schemes. The purpose of the work is to optimize crop rotation schemes for the steppe zone of Republic of North Ossetiа — Аlania. The novelty lies in the fact that for the first time for the natural conditions of the steppe zone of Republic of North Ossetiа —Alania the schemes of soil-protective crop rotations of a new type were optimized in order to increase soil fertility, ecological balance and productivity of agricultural landscapes.Methodology. The research was carried out on the basis of scientific principles and approaches set out in the methodological guidelines: "Agroecological land assessment, design of adaptive-landscape farming systems and agricultural technologies" (2005), "Methodology for designing the basic elements of an adaptive-landscape farming system" (2010) and "Methodology for optimizing crop rotations and patterns of arable land use” (2004).Results. For more efficient use of arable land, increasing crop yields, meeting the needs of farms with crop products and improving soil fertility, improved crop rotations are proposed. In the developed structure, winter crops should account for 42%, corn for grain — 13%, millet — 1%, peas — 3%, soybeans — 4%, sunflower — 8%, potatoes — 0.5%, fodder root crops — 1%, vegetables — 3%, corn for silage — 4%, annual grasses — 1.5%, perennial grasses — 3%, winter rapeseed — 7%, flax — 3%, mustard — 2%, pure fallows — 4%. Optimization of the structure of sown areas and crop rotations developed on its basis will make it possible to grow intermediate crops on 30–50% of arable land, provide farms in the steppe zone of Republic of North Ossetiа — Аlania with high-quality and balanced fodder and a longer operation of the "green conveyor". Optimized crop rotation schemes for the steppe zone of Republic of North Ossetiа — Аlania provide a reduction in degradation processes, increase soil fertility and crop productivity by 12–15%.
The influence of biological techniques in the feed crop rotation link on soil productivity and fertility
Authors: Tiranov A. B. , Grigoriev A. V. 
Published: November 2022

Relevance. New fertilizers Azotovite and Phosphatovite do not pollute the soil and provide significant savings when applying in combination with traditional fertilizers. Studies on the use of Azotovite and Phosphatovite in the conditions of the Novgorod region on sod-podzolic soil in improved fodder crop rotations have not yetbeen conducted, therefore research on the influence of Azotovite and Phosphatovite together with mineral fertilizers in improved crop rotations is relevant.Methods. The results of studies of two-factor field experiment, carried out in 2019–2021 on sod-podzolic soil in the conditions of the Novgorod region, are presented to study the influence on the yield and nutritional value of forage cropsof three methods of using Azotovite (A) and Phosphatovite (P) — factor H— and mineral fertilizers in full dosagesfor a programmed yield (background 1) andin dosages, reduced by 50% (background 2) (factor B) in the feed crop rotation link: spring rapeseed for siderate; winter rye and spring barley for grain. The use of crop-root residues, siderates and grain straw serves as a basis for increasing soil fertility.Results. It was established that the introduction of a complete mineral fertilizer based on the planned harvest, the double use of Azotovite and Phosphatovite in technological operations— etching of seed material (by 2 l/t of each preparation) and non-root spraying of plants in the period up to 30 cm (by 1 l/ha of each preparation) —provided high productivity of siderate (38.2 t/ha),grain of winter rye (7.1 t/ha) and spring barley (4.1 t/ha); digestible proteinin amount 0.65 and 0.34 t/ha was obtained, low energy intensity of grain production (less than 3.0 GJ/t) is combined with high energy efficiency of production — 5.8 units. The use of siderate and grain straw as organic fertilizers allowed to increase soil fertility on average per crop rotation link for all variants of the experiment by more than 47 GJ/ha.
Effects of Particle Size and Soil Bed on the Shear Strength of Materials in the Direct Shear Test
Authors: Kalasin Thaveechai , Khamchan Chayanan , Aoddej Auttawee 
Published: November 2022

Generally, direct shear apparatus is used to determine the shear strength parameters of soil and rock for designing a geotechnical engineering structure. However, the size of the shearing box and the soil sample is key for evaluating the shear strength parameters of test materials, and also testing conditions in the laboratory are different from site conditions. This research aimed to focus experimentally on the effect of particle size and the property of subgrade materials that were necessary keys for installing apparatuses for the direct shear test. According to the experimental results based on a 5 x 5 cm shear box, an increase in average particle size and coefficient of curvature could provide higher shear strength in terms of internal friction angle of the sample, but not for the case of higher value of the uniformity coefficient. Using both 5 x 5 cm and 30 x 30 cm shear boxes, a large B/Dmax ratio is not the key for determining appropriate parameters when testing with samples that have a nearly uniform size. Samples varied in thickness of both the ballast and subgrade layers, were investigated and observed by a large shear box. It was found that good properties of subgrade materials affected the shear strength of ballast materials, and they provided underestimates of strength when the bottom of the shearing box was rigid. The modified parameter of ballast materials on the subgrade layer is suggested for obtaining strength parameters reflecting the ballasted track system.
Рекомендації щодо вибору та обґрунтування шляхів підвищення рівня воєнно-економічної безпеки України під час дії воєнного стану в умовах російсько-української війни (24.02.22-30.09.22 рр.)
Authors: Semenenko Oleh , Abramova Maryna , Voronchenko Ihor , Dobrovolskyi Yuzef , Korotya Volodymyr , Sovhiria Tetiana 
Published: November 2022

Мета роботи: є формування дієвих рекомендацій щодо підвищення рівня воєнно-економічної безпеки (ВЕБ) України в умовах воєнного стану під час російсько-української війни.
Метод: основними методами досліджень є графоаналітичний метод, метод експертних оцінок, методи статистичного аналізу та математичної статистики, методи прогнозування.
Результати дослідження: методичний підхід та рекомендації щодо оцінювання стану ВЕБ, а також розроблення рекомендацій щодо підвищення рівня ВЕБ України в умовах воєнного стану під час російсько-української війни.
Теоретична цінність дослідження: основними результатами досліджень за тематикою статті є: визначений перелік проблем підвищення рівня ВЕБ України в умовах воєнного стану; методичний підхід оцінювання дисбалансу між показниками внутрішньої та зовнішньої ВЕБ, а також сформовані рекомендації щодо підвищення ВЕБ України в умовах війни.
Непередбачуваний фактор корупції у гібридній війні крізь призму енергоцентричного підходу
Authors: Voloshenko Antonina 
Published: November 2022

Мета роботи: визначити вплив фактору корупції у гібридній війні крізь призму енергоцентричного підходу.
Метод дослідження: Дослідження проводилося з використанням наступних загальнонаукових та спеціальних методів: історичний метод під час вивчення розвитку фактору корупції як елемента гібридної війни в хронологічній послідовності; метод аналізу і синтезу в їх системному поєднанні під час розгляду даних щодо проявів корупції у секторі безпеки та оборони Російської Федерації; абстрактно-логічний метод − для формулювання теоретичних узагальнень і висновків дослідження. Робота виконана особисто автором.
Результати дослідження: проведено вивчення корупції із застосуванням енергоцентричного підходу. Встановлено, що корупція є дієвою зброєю гібридної війни, оскільки шляхом експорту корупційного впливу, відбувається корупційна ерозія суспільств і вражаються головні цілі цієї війни: інститути демократії та верховенство права. Доведено, що в російсько-українській війні рівень корупції у секторі безпеки та оборони Російської Федерації виявився недооціненим чинником зниження потенціалу агресора. Виокремлено найрезонансніші для російської армії під час війни в Україні наслідки від корумпованості оборонного сектору: тотальне недокомплектування особового складу військ; зростання обсягів державного оборонного замовлення не призвели до технологічної модернізації російських збройних сил; неякісне продовольче забезпечення; нестача матеріально-технічних засобів; провал стратегічної та тактичної підготовки армії РФ та силових структур через низький професіональний рівень та корумпованість російського генералітету.
Теоретична цінність дослідження: Поглиблено науково-теоретичне розуміння фактора корупції як непередбачуваного елемента гібридної війни.
Практична цінність дослідження: результати дослідження можуть бути враховані під час оцінки потенціалу противника.
Оцінка професійних ризиків водія технологічного вантажного автомобіля для умов лісового господарства
Authors: Tsopa Vitaliy , Borodina Natalia , Cheberiachko Serhii , Deryugin Oleg , Hilpert Vitaly , Borovytskyi Oleksandr 
Published: November 2022

Мета роботи: удосконалення процесу з визначення рівня професійного ризику водія технологічного вантажного автомобіля, шляхом визначення взаємозв’язків між різними зовнішніми і внутрішніми небезпечними чинниками, які підвищують вірогідність настання незвичайної події під час виконання виробничої діяльності.
Метод: застосовувався метод fuzzy “Decision Making Trial and Evaluation” (fuzzy Dematel).
Теоретична цінність дослідження: визначено тридцять небезпечних чинників, що можуть призвести до порушення опорно-рухового апарату водія технологічного вантажного автомобіля під час виконання трудових зобов’язань на підприємствах лісного господарства. Визначено найбільш впливові небезпечні чинники нечітким методом “fuzzy DEMATEL”, які мають найбільш вплив на настання небезпечної події, що пов’язання з роботою водія технологічного вантажного автомобіля.
Практична цінність дослідження: встановлено причино-наслідковий взаємозв’язок між визначеними небезпечними чинниками, які впливають на роботу водія технологічного вантажного автомобіля під час виконання професійної діяльності, що дозволяє ідентифікувати причинні та наслідкові небезпечні чинники.
Цінність дослідження: розроблено алгоритм оцінки професійних ризиків з урахуванням.