bluuebunny/crossref_metadata_2025 huggingface dataset:
Reasons for requesting an interferon gamma release test from internal medicine and rheumatology clinics and evaluation of the results
Authors: Sari Alper , Ertürk Adem , Şarlak Konya Petek
Published: April 2023

Background/Aim: Tuberculosis is a disease involving many systems, such as the lung, gastrointestinal system, genitourinary system, etc. Detecting this disease in its latency significantly reduces the morbidity and mortality associated with tuberculosis. One of the tests used in latent TB screening is the interferon gamma release test. In rheumatology practices, it is routinely used to screen for latent tuberculosis infections before treatment with biological agents and Janus kinase (JAK) inhibitors, and it can also be used to exclude tuberculosis infection in clinical practice. In our study, we aimed to evaluate the reasons for requesting interferon gamma release tests and the results of this test in patients who requested it.
Methods: Patients admitted to internal medicine and rheumatology outpatient clinics were retrospectively screened within the retrospective cohort study. In total, 364 patients who requested interferon gamma release testing were included in the study. Nine patients with unclear test results were excluded. Laboratory results, demographic data, reasons for requesting the interferon gamma release test, and results were evaluated.
Results: The interferon gamma release test was requested by 355 patients. Of these, 266 patients (74.9%) asked for latent tuberculosis screening before treatment with biological agents and JAK inhibitors. This was followed by patients with peripheral lymphadenopathy-lung nodules, patients with unexplained elevated acute phase reactants, and patients with constitutional symptoms, respectively. Ten out of 107 patients (9.3%) had an active tuberculosis infection, while six out of ten patients (60%) had pulmonary tuberculosis, and four (40%) had extrapulmonary tuberculosis.
Conclusion: The most common reason for requesting the interferon gamma release test in internal medicine and rheumatology clinics was screening for latent tuberculosis before treatment with biologic agents and JAK inhibitors. In internal medicine, it has been observed that this test can also be requested by patients with constitutional symptoms, unexplained elevated acute phase reactants, and a preliminary diagnosis of tuberculosis in order to rule out or strengthen the preliminary diagnosis.
Piezoelectric method of registration of uterine contractions
Authors: Semivolos Alexander Mefodievich , Semivolos Sergey Aleksandrovich , Loshchinin Sergey Olegovich , Tokarev Dmitry Nikolaevich , Egunova Alla Vladimirovna
Published: April 2023

The article presents a technical solution for the intrauterine pressure sensor in cows, based on the use of the piezoelectric effect. The results obtained indicate a sufficiently high sensitivity of the sensor and reliable performance of the device that provides registration of uterine contractions in cows after calving. This can be used to conduct hysterographic studies in cows at various times after the fetus has been bred, as well as in the development of new drugs to correct the contractility of the uterine muscles. It has been established that after 6 hours the amplitudes of uterine contractions are more pronounced than 12 hours after the fetus has been removed.
Development of an intelligent control system for experimental seed production
Authors: Bakirov Sergey Mudarisovich , Mikheeva Olga Valentinovna , Kolganov Dmitry Alexandrovich , Mikheev Ivan Aleksandrovich , Solovieva Elena Borisovna
Published: April 2023

The article presents the development of an intelligent control system for experimental seed production, the program, the drawings necessary for explanation.
Aerodynamic calculation of the removal of combustion products from the boiler
Authors: Zhila Viktor Andreevich
Published: April 2023

The article calculates pressure losses due to friction and local resistance, which allows you to determine the total losses in the chimney. For normal operation of gas installations, conditions must be created under which a vacuum is created at the exit points of combustion products. The task of removing combustion products includes determining the cross sections of chimneys and connecting pipes.
Information base for forecasting water balance deficiency in irrigated crops for the dry Volga region
Authors: Korsak Viktor Vladislavovich , Prokopets Roman Viktorovich , Fisenko Boris Viktorovich , Arzhanukhina Ekaterina Vladimirovna , Ramazanova Bella Magomedtagirovna
Published: April 2023

The article substantiates the relevance of further development of land irrigation in the southern and central zones of the European part of Russia in the context of global warming and the need for it to research on creating an information base for predicting water balance deficits in irrigated crops, the development and implementation of which will significantly improve the quality and scientific validity of irrigation projects. systems and planning for the development of irrigated agriculture in various regions of the arid Volga region.
Evaluation of the influence of the row of tillage implements on their work indicators
Authors: Maltseva Anastasiya Sergeevna , Nesmiyan Andrey Yurievich , Ladygin Alexander Olegovich , Maltsev Petr Sergeevich , Ivanov Pavel Aleksandrovich
Published: April 2023

The purpose of the presented study is a quantitative assessment of the influence of the rows of tillage implements, using the example of steam cultivators, on their technological, operational and economic characteristics. An analysis of the data from the test reports of these implements showed that the most common three-row cultivators provided slightly worse performance than two- and four-row ones. At the same time, it was found that there is a direct relationship between the row and working width of cultivators. Two-row and four-row cultivators provided approximately equal quality of work in terms of such indicators as deviation from the specified cultivation depth (1.1-1.2 cm); degree of crumbling (91.7-92.2 %) and ridges (2.3 cm) of the field surface. The shift time utilization coefficient for two- and three-row implements (0.73-0.74) is noticeably lower than that for four-row implements (0.82), which can be indirectly explained by the fact that such implements are indeed less clogged with vegetation. remains and soil in comparison with analogues, however, it is not clear why such an effect is not observed when comparing two- and three-row tools. The specific fuel consumption of MTA with cultivators of different rows is approximately the same - 4.0 ... 4.1 kg / ha, i.e. from the energy point of view, the advantages of the multi-row tool layout are not obvious, which does not fully correspond to the earlier hypothesis about the lower clogging of multi-row tools. The material consumption of two-row guns (and hypothetically, the cost) is almost 1.1 times less than that of three-row ones, and almost 1.3 times less than four-row ones. At the same time, the increase in material consumption significantly exceeds the increase in the increase in the coefficient of use of the shift time. In general, the study conducted (on the example of steam cultivators) did not allow us to identify obvious advantages in terms of agrotechnical and energy indicators of the tendency to increase the rows of tillage implements, with the obvious disadvantage of this approach from a technical and economic point of view.
The influence of climatic conditions on oil content and quality of oil seeds of winter camelina
Authors: Prakhova Tatyana Yakovlevna , Turina Elena Leonidovna
Published: April 2023

The object of the study was oilseeds of winter camelina grown in regions with contrasting climatic conditions: the forest-steppe of the Middle Volga region (Penza Research Institute of Agriculture) and the steppe zone of Crimea (Research Institute of Agriculture of Crimea). The aim of the research was to determine the biochemical parameters of winter camelina oilseeds and to study the qualitative and quantitative fatty acid composition depending on the region of cultivation. The climate of the Middle Volga region is temperate continental. The amount of annual precipitation varies from 350 to 750 mm, the average annual temperature is 5.3 ?С. The climate of the steppe Crimea is continental, the average annual temperature reaches 10.2 ?С, the amount of precipitation per year is 350-450 mm. The fat content in camelina seeds varied slightly depending on hydrothermal parameters and averaged 39.04% and 37.81% depending on the region of cultivation. The smallest accumulation of fat (35.40 and 36.17%) was noted in drier years with HTC 0.23 (Crimea) and 0.40 (Penza). The main part in the fatty acid composition of camelina falls on polyunsaturated fatty acids, the average total content of which is 54.40-54.86%. The total content of monounsaturated fatty acids is 34.15-35.40% and saturated - 9.43-9.80%. The largest share in camelina seed oil is linolenic acid, the percentage of which was 33.79 (Crimea) and 34.87 (Penza). The concentration of linoleic and oleic acids is 16.12-17.98% and 14.82-15.70%, depending on the growing region. The content of palmitic acid is 4.93 and 5.17%, eicosene - 15.46 and 15.84 %, erucic 3.15 and 3.16%. It was found that camelina oilseeds contain tocopherols 0.085-0.098%, carotenoids 0.002%, steroids 0.144-0.145% and squalene 0.09-0.10%, depending on the region.
Bacteria to stimulate the growth and increase the yield of bread spring wheat in the conditions of the Trans-Ural steppe
Authors: Timergalin Maxim Danilovich , Rameev Timur Vilevich , Feoktistova Arina Vladimirovna , Sultangazin Zufar Rafkatovich , Sharipov Danil Almirovich , Chetverikov Sergei Pavlovich
Published: April 2023

The paper presents data from three years of field research in the conditions of the Trans-Ural steppe zone. The positive effect of treatment with a strain of bacteria Pseudomonas protegens DA1.2 together with herbicides of different chemical nature (chistalan and nanomet) in drought conditions is shown. Inoculation with bacteria led to an increase in wheat yield under combined stress due to the growth-stimulating effect of bacteria on plants and leveling the toxic effect of herbicides. Treatment with bacteria and herbicides contributed to the accumulation of raw plant mass and stimulating the growth of shoots, maintained high relative water content, and increased the concentration of chlorophyll in the leaves. The introduction of herbicides of different chemical nature had a different effect on the hormonal status of plants. In combination of bacterial treatment with the herbicide nanomet, an increase in the content of abscisic acid (ABA) and a decrease in the level of auxins (IAA) in wheat plant shoots were noted. And when treated with strain Pseudomonas protegens DA1.2 with chistalan, the concentration of ABА in the shoots decreased. The addition of bacteria to herbicides during processing led to an increase in the number of grains in the ear, the weight of grain per ear. The maximum increase in yield relative to the control was observed in variants of joint treatment with bacteria of strain Pseudomonas protegens DA 1.2 with chistalan or nanomet.
The prevalence and factors contributing to the incidence of neonatal gastroenteritis in newborn calves
Authors: Kalinkina Yulia Vasilievna , Fedorin Andrey Aleksandrovich , Kalyuzhny Ivan Isaevich , Chulenev Anatoly Sergeevich
Published: April 2023

The results of monitoring the situation of neonatal gastroenteritis of calves are presented for four farms in the north-western districts of the Saratov region, during the period of mass calving. The incidence of neonatal gastroenteritis of calves was 11.92 - 16.36%. Factors contributing to the morbidity of newborn calves with neonatal gastroenteritis - complications of pregnancy, depending on the gestational period, subclinical ketosis (27.65%), osteodystrophy (15.71%), liver and kidney diseases (10.59%) have been established. In 30.23% of calves with NG, a large number of under-oxidized metabolic products and impaired liver and kidney function were observed. In patients with severe neonatal gastroenteritis, the following indicators were at a low level: alkaline reserve (40.8 ± 1.3 vol% CO2), glucose content (2.86± 0.12 mmol/L). In the central part of the liver, large-drop granular dystrophy is observed with the preservation of the structure of hepatocytes.
Age and time of year dependence of the spreading of paramphistomatosis in cattle in Azerbaijan
Authors: Nasibov Mahir Nasir ogly
Published: April 2023

The article talks about the research works on paramphistomatosis carried out in the individual livestock farms located on the territory of Shirvan-Salyan, Guba-Khachmaz, Ganja-Dashkesan economic districts. As a result of examinations, the extensiveness and intensity of infection with paramphistomatosis in farms were identified. The dependence of the spreading on the age of animals and the time of year, of paramphistomatosis, parasitizing among cattle in farms has been studied. According to the Shirvan– Salyan economic district, in animals examined, there were identified an extensiveness of infection with paramphistomatosis, in spring 36.0%, in summer 22.0%, in autumn 42.1%, and in winter 9.6%, according to the Guba-Khachmaz economic district, in spring 27.4%, in summer 14.2%, in autumn 35.8%, and in winter 7.5%, according to the Ganja –Dashkesan economic district, in spring 22.3%, in summer 12.8%, in autumn 30.9%, and in winter 5.3%.        In the course of examinations in the internal organs during autopsies of animals slaughtered at the points for the slaughter of livestock there were detected paramphistomatosis according to the Shirvan – Salyan economic district in the spring period, 11-30 spc., in the summer 8-14 specimens, in the autumn 14-38 specimens, in the winter 4-8 specimens, according to the Guba – Khachmaz economic district in the spring period 8-22 specimens, in the summer 5-11 specimens, in the autumn 11-28 specimens, and in the winter 3-7 specimens, according to the Ganja – Dashkesan economic district in the spring period 6-14 specimens, in the summer 4-7 specimens, in the autumn 8-21 specimens, in the winter 2-5 specimens and the intensity of invasion was studied.
On the need for formalization of processes in land reclamation
Authors: Golovinov Evgeny Eduardovich
Published: April 2023

The paper discusses general approaches to the formalization of processes in land reclamation. The relevance is due to the need to combine into a common knowledge base and classification of processes according to their nature and object of influence. Anthropogenic and natural processes, their interrelation, frequency and duration of exposure are considered. Some processes are considered in more detail, for example, the drainage system. It is indicated that the work of the drainage system, as a constant process, has a constant impact on the reclaimed lands, has an anthropogenic character. Natural processes such as soil formation are natural biophysical and chemical processes that can be significantly influenced by anthropogenic impact. Forest reclamation can be considered as a natural process of tree growth in the intervals between anthropogenic impacts. But if we consider the creation and maintenance of forest belts throughout their existence, then we should consider this process as anthropogenic having its own technological maps. The creation of an agricultural landscape as a process is purely anthropogenic if it is considered in the paradigm of radical improvement or change of natural landscapes. The issues of combining processes into groups and subgroups by duration, stability, management capabilities, complexity of the internal structure, etc. are considered. As a conclusion, it is indicated that in the field of modern reclamation science, the formalization of processes, their classification is an urgent problem and requires further development.
Results of the study of pear varieties of Yekaterinburg breeding
Authors: Tarasova Galina Nurislamovna
Published: April 2023

Seven new varieties of pear were studied under the conditions of the Sverdlovsk horticultural breeding station (Yekaterinburg). Talisa and Berezhenaya are standard varieties. For the observation period (2007-2021), the average sum of active temperatures was 20660C (1723-2438 °C); active vegetation period 128 days (110-147 days); average annual temperature +3.0  °С. A good taste of fruits (with a score of 4.0-4.2 points) is in varieties Talisa (st), Fleyta, Berezhenaya (st), Rozovyy bochonok, Tais, Limonadnaya. At the age of 13-16 years, the Tais variety had a high yield (19.8 t/ha). The yield at the control level was in the varieties Fleyta, Kolokolchik, Rozovyy bochonok, Ostrovityanka II (7.2-11.1 t/ha). A group of varieties with tall trees has been identified: Talitsa (st), Tais, Rozovyy bochonok, Maksimka (5.1-5.5 m). The group of varieties with medium-sized trees includes Fleyta, Berezhnaya (st), Limonadnaya, Ostrovityanka II (4.2-4.6 m). Varieties with a compact crown are Rozovyy bochonok  and  Limonadnaya (diameter 2.3-2.4 m); a variety with a spreading crown is Tais (diameter 3.7 m). The crown diameter of other varieties is 2.8-3.2 m. According to the complex of economically valuable traits, six varieties were identified for use in breeding in the Sverdlovsk horticultural breeding station. These are the varieties Fleyta (yield, fruit quality), Limonadnaya (early maturity, fruit quality, resistance to Monilia sp.), Tais (early maturity, yield, fruit quality, resistance to Monilia sp.), Berezhnaya (st), Rozovyy bochonok and Ostrovityanka II (yield, fruit quality, resistance to Monilia sp., fruit storage suitability). The new varieties of pear Tais and Rozovyy bochonok be recommended for inclusion in the State Register for the fourth region.
Resistance genes of salinization in sugar beet
Authors: Fedulova Tatyana Petrovna , Rudenko Tatiana Sergeevna , Nalbandyan Arpine Artavazdovna , Moiseenko Alexander Vladimirovich
Published: April 2023

Aim of the investigations was to study genes of resistance to salinization in sugar beet breeding materials. The experiment was conducted using the sugar beet hybrids (Beta vulgaris L.): F119170 (VNIISS), Karioka, Mitika and Hamber (Lion Seeds), Lgovka (Lgovskaya OSS). Expression of genes coding ascorbate peroxidase and NHX-antiporter were studied. In the work, specific primers were used: APX, NHX1, NHX4.1, NHХ5.1 and NHX5. Studying of NHX1, NHX4 and NHX5 genes resulted in selection of the sugar beet genotypes: MS17070, Op18094, F119170 and Humber, the hybrid of Lgovskaya OSS. From the results of gene expression analysis, a main role of NHX5 gene in formation of resistance to salinization was determined. As for ascorbate peroxidase activity, the highest indices were also revealed in the domestic genotypes of MS17070 (115.01 U/mg when treated with 70 mM NaCl), Op18094 (42.3 U/mg when treated with 70 mM NaCl) and Humber (68.6 U/mg when treated with 70 mM NaCl). The sufficiently high level of APO activity was shown both in F119170 (18.8 U/mg when treated with 150 mМ NaCl) and the hybrid of Lgovskaya OSS (13.2 U/mg when treated with 150 mM NaCl). It was determined that BvNHX1 and BvNHX5 genes made a special contribution to formation of resistance to salinization, i.e. they could work as independent units. On the contrary, BvNHX4 was supposed to work only together with them and could not provide stable resistance when BvNHX1 and BvNHX5 were inhibited.
The results of studies of agrotechnical indicators of the uniformity of rain distribution by a jet fan rain-forming nozzle when watering mushrooms
Authors: Azizov Irek Railevich , Rusinov Alexey Vladimirovich , Anisimov Sergey Aleksandrovich , Karpova Olga Valerievna
Published: April 2023

The materials of the article consider the studies carried out to determine the agrotechnical indicators of the uniformity of rain distribution when using the proposed design of a jet fan rain-forming nozzle installed on an automated plant for watering champignons. The flow-pressure characteristics of rain created by jet fan-shaped rain-forming nozzles with various nozzle cross-section shapes are presented.
The study of adhesive interactions in the ice-asphalt concrete system is the key to the safety of road transport communications
Authors: Grekhov Pavel Ivanovich , Shkrabak Vladimir Stepanovich , Shkrabak Roman Vladimirovich
Published: April 2023

The development of the transport system in any country significantly affects economic development. The active development of the transport system requires high-quality roads, as this affects the safety of their operation and especially during low temperatures. During this period, roads are covered with ice or snow, which requires their speedy removal. The quality of the road surface depends on the adhesion of ice with road clothes. The article deals with the issue of adhesive interactions in the ice-asphalt concrete system. The developed methodology can determine the adhesion of ice to the surface of the road surface. This circumstance will allow using various additives and varying the composition and components of asphalt concrete to reduce adhesive interactions. Reduced adhesive interactions will allow to remove ice and snow more quickly, and this will reduce the number of road accidents, which will save people's lives and health. Bituminous salt mass, which is a waste from the destruction of chemical weapons of the organophosphorus group, is considered as modifiers. Its chemical composition is considered, which makes it possible to ensure its effect of surfactants. The experiments were performed and processed using the theory of experiment planning. The response surfaces of a particular sample of the general population and the regularities described by regression equations, the adequacy of which is verified by the Fisher and Cochrane criteria, are obtained.
New varieties of apple trees in the assortment Central Black Earth Region of Russia
Authors: Galasheva Anna Mironovna , Sedov Evgeny Nikolaevich , Krasova Nina Glebovna , Lupin Maksim Vladimirovich
Published: April 2023

In VNIISPK оver the past thirty years, 21 summer varieties of apple trees have been identified, of which 11 varieties are zoned in the Central Black Earth region of Russia: Orlinka, Augusta, Darena, Early Aloe, Maslovskoye, Yablochny Spas, Orlovim, Osipovskoye, Joy of Nadezhda, Zhelannoe, Yubilyar. Objective. To study the features of growth and fruiting of new summer varieties of apple trees on a medium-sized rootstock 54-118. The objects of research are summer varieties of apple trees bred at FGBNU VNIISPK (Orel city) - Avgusta, Daryona, Maslovskoye, Osipovskoye, Zhilinskoye, Spasskoye, Yablochny Spas and the control variety of Canadian selection Melba on a medium-sized clonal rootstock 54-118. Garden planting - 2014, garden planting scheme 5?2 m. When studying the strength of the growth of trees, it was revealed that the tallest trees (age 6 years) were in the varieties Apple Spas - 3.0 m and Osipovskoe - 2.9 m on a medium-sized rootstock 54-118. In 2021, Spasskoye had the highest yield - 26.2 kg/tree, Yablochny Spas Spas - 25.0 kg/tree. The largest yields on average over four years were produced by apple varieties immune to scab on a medium-sized rootstock 54-118: Zhilinskoye - 10.7 t/kg, Maslovskoye - 12.5 t/kg, Yablochny Spas - 13.6 t/kg and Spasskoye - 16.3 t/kg. When calculating the load of the crop per unit area of the crown projection, crown volume and cross-sectional area of the bole, the Maslovskoye variety turned out to have high rates.
Biochemical composition of persimmon fruits of local varieties and forms common in Shaki-Zagatala economic district
Authors: Bakhshaliyeva Natavan Zokhrab kyzy , Mammadov Dzhoshgun Israphil oglu , Al Kamilya Ali Aga kyzy
Published: April 2023

During the research, the content of vitamin C and sugars in the fruits of 20 varieties and forms of the persimmon (Diospyros L.) belonging to the local folk selection spread in Sheki-Zagatala economic region was compared. Varieties of folk selection persimmons with the best biochemical parameters have been identified: ZU-01, ShG-01, ShG-03, ZM-01, BA-01, BA-02 and ZM-01. The dependence of the content of vitamin C and sugars in fruits on the height of collection points was revealed. It has been shown that with an increase in the height of the collection points, the content of sugars and vitamin C in fruits decreases. According to the data obtained, the varieties growing at an altitude of 200–300 m above sea level differed in the highest content of vitamin C: BA-02 (39,60 mq/%),  BQ-01 (39.80 mq/%), ShG-03 (39.70 mq/%) и  BA-03 (38.00 mq/%); the lowest – growing at an altitude of 600–800 m above sea level: QN-01 (28.38 mq/%), QN-02 (28.40 mq/%) и QV-02 (29.00 mq/%). The highest sugar content in fruits was found in forms growing at an altitude of 200–500 m above sea level: ShG-01 (23.00%), ZU-01 (23.00%), ShB-01 (22.00%), ShG -03 (22.00%) and BA-01 (22.00%). The lowest indicators of sugars were recorded in persimmon varieties of folk selection QN-02 (17.00%), QZ-04 (17.00%), QV-01 (18.00%), QN-01 (18.00% ), QZ-03 (18.00%), growing at an altitude of 500–800 m above sea level.
Study of introduced nut forms in the conditions of the Northern Caspian
Authors: Popov Sergey Nikolaevich
Published: April 2023

A comprehensive assessment of the introduced forms of nuts according to economic and biological indicators is given and the most productive and adapted forms with good fruit quality are identified. The object of research was 32 forms of nuts. The early onset of the main phenological phases is characterized by varieties Xin-2, Ideal SI 1-2, Siebold nut (Tula), Siebold nut (Moscow). The earliest (6.05–8.05) flowering of female flowers was recorded in the forms Saratov ideal SI 1-2, Ideal SI 1-2 and Ideal SI 2-6. Male inflorescences were formed only in three varieties, the earliest flowering of male flowers was noted in the variety Ideal SI 1-2 (2.05). The maximum increase in tree height for the season in 2021 was noted in GF 1, Chili rounded, Ideal, Aral 2 (from 171 to 181 cm). The smallest increments were characterized by pecan DAOD-7, pecan DAOD-9 (4...80 cm). In other varieties and hybrids , the increase significantly varied from 103 to 170 cm . The maximum increase in the diameter of the stem was distinguished by the Elongated varieties (Volgograd), Large-fruited, GF 1 (5.0...5.3 cm). The smallest increments were characterized by pecan DAOD-7, pecan DAOD-9, which ranged from 0.2 to 0.5 cm. The pecan DOD had no increase at all, the other varieties and hybrids had an average increase (1.7...4.8 cm). The maximum productivity value was for the Chili variety elongated and reached 0.563 kg. The average weight of the fetus in the variants was 11.0...20.3 g, the largest mass of the fetus was in the form Ideal SI 2-6 (20.3 g). The largest in height and diameter of the fetus was B1D (Kyrgyzstan) – 5.1 and 3.4 cm, respectively.
Analysis of the live weight dynamics of male turkeys when using eubiotics based on bifidobacteria of Bifidobacterium bifidum strain in the diet
Authors: Pogodaev Vladimir Anikeevich , Katkov Konstantin Aleksadrovich
Published: April 2023

In poultry farming, in order to increase the productivity and livability of poultry stock, antibiotics and biologically active compounds are used as feed additives, which, along with positive properties, cause pathological changes. On this basis, the aim of the research was to determine the effects of various doses of medications based on bifidobacteria on productivity, to find out whether the factor of belonging to a particular subgroup affects the average value of live weight in this subgroup and to conduct a pair comparison of live weight values in subgroups on the principle of “round-robin”. In the diet of turkeys of the first three experimental groups, medication No. 1 – an eubiotic, containing live bifidobacteria of Bifidobacterium bifidum strain was added; the turkeys of the rest three experimental groups received medication No. 2 – an eubiotic, containing live, lyophilized Bifidobacterium bifidum cells sorbed on activated carbon particles. The results of the variance analysis showed that at the age of 4 weeks, the factor of belonging of turkeys to a particular group had a significant impact on the value of the live weight of animals. Then, at the age of 8 weeks, the situation changed. In groups from II to VII, there was practically no significant difference in the average values of live weight. Only the control group I was singled out. At the age of 12 and 16 weeks, male turkeys of the II, III, V, VI groups, where eubiotics based on bifidobacteria were used, gradually began to stand out in a big way. This trend continued until the 24th week. It has been established that medications, which contain bifidobacteria, have a great potential to increase the productivity of poults due to the activation of metabolic processes in the body. The most pronounced effect has biopreparation No. 2.
Experience of application of a new feed additive in carp feeding
Authors: Zueva Marina Sergeevna , Miroshnikova Elena Petrovna , Arinzhanov Azamat Ersainivich , Kilyakova Yuliya Vladimirovna
Published: April 2023

The article discusses the results of the application of a new feed additive Atysh (Enterococcus faecium (2?109 CFU) and Lactobacillus acidophilus (1?107 CFU)) in the feeding of carp fingerlings (Cyprinus carpio).  After the introduction of the Atysh in the diet of carp at a dosage of 0.08 g / kg of feed, the growth of fingerlings by 7.54% was established in the fifth week of the experiment. The application of the probiotic did not have a negative effect on the amino acid composition of fish tissues. An increase in the level of macronutrients and a decrease in a number of essential and conditionally essential trace elements were also recorded. A significant decrease in a number of toxic elements in the carp body has been established.
Meat productivity of bulls of the Simmental breed and crossbreeds with blood relationship (? Simmental + ? Aberdeen-Angus), (? Simmental + ? Kalmyk)
Authors: Shevkhuzhev Anatoly Foadovich , Pogodaev Vladimir Anikeevich
Published: April 2023

The aim of the study was to establish the characteristics of the meat productivity of steers obtained from crossing Simmental cows with Aberdeen-Angus and Kalmyk bulls, depending on the cultivation technology. Scientific and economic experiments were conducted in three farms of the Karachay-Cherkess Republic: LLC firm Hammer (experience 1); SEC PZ Zarya -1 (experience 2) LLC Yugagrohim (experience 3) in 2021-2022. For the entire period of cultivation in crossbreeds (? Simmental + ? Aberdeen-Angus) in the first experiment, the average daily increase was 711 g, 8.5 energy feed units were spent on 1 kg of increase, while the increase in Simmental bulls was 655 g per day, 10.4 EQ was spent on 1 kg of increase, or 22.35% more. The crossbreeds (? Simmental + ? Kalmyk) were closer to the bulls of the Simmental breed in terms of growth and payment of feed. In the first, second and third experiments, the crossbreeds (? Simmental + ? Aberdeen-Angus) outperformed purebred simmentals by: pre-slaughter live weight by 29.7 (P>0.999), 12.1 and 13.9 (P>0.99) kg; the mass of the paired carcass by -18.5, 8.9 and 8.6 kg (P>0.99 – 0.999); internal fat weight by – 3.1 (P>0.999), 0.6 and 2.4 (P>0.99) kg; slaughter weight by – 21.6, 9.5 and 10.2 kg (P>0.99–0.999); slaughter yield by -1,07,0,66 and 0.49 abs.%; half-carcass weight by 9.1, 4,5. and 4.5 kg (P>0.99–0.999); muscle mass by -6.13 (P>0.999), 3.0 (P>0.95) and 3.74 (P>0.99) kg; adipose tissue by–3.75 (P>0.99), 1.91 and 0.58 kg, respectively.
Salchichas de atún ecuatoriana, una oportunidad en el mercado argentino
Authors: Araujo Guzmán María Fernanda , Chávez Rizzo Kevin Steven , Quinapallo García Cleotilde María
Published: April 2023

La necesidad de generar alimentos en forma continua para el consumo de la población requiere del desarrollo de nuevos productos alimenticios y de la mejor utilización de estos, las salchichas de atún de Ecuador son productos en el cual está incursionando la industria pesquera y son una gran oportunidad de consumo en el mercado argentino, puesto que, es un país donde acostumbran a consumir embutidos a la parrilla, siendo este un producto diferente al tradicional, así, existen empresas que se dedican a la elaboración y comercialización de este tipo de producto a base de carne de pescado, y que en este caso la materia prima es el atún que contiene dentro de sus propiedades el Omega 3 y una gran cantidad de vitaminas que ayudan al sistema inmunológico del ser humano. El presente artículo tiene como objetivo lograr que la empresa que expone sus productos, sea más competitiva para satisfacer las necesidades del mercado argentino contribuyendo como gran oportunidad de negocio a los productores ecuatorianos y una oportunidad de comercialización del producto en el mercado argentino, la metodología que se llevó a cabo en la investigación fue mixta, las técnicas de recolección de datos que se usaron fueron encuestas, entrevistas con ellos se obtuvieron resultados concisos para la elaboración del articulo para de esta manera poder determinar estrategias para la comercialización del producto en el mercado argentino. Con base en la investigación realizada, la factibilidad del mercado objetivo depende de los posibles distribuidores, niveles de consumo y tipos de consumidores existentes.
Aplicación de geo-tecnologías y ecología del paisaje para la generación de capacidad de acogida, con fines de planificación territorial en la ciudad de Chone-Ecuador
Authors: Oña Ruiz Nicholas Alejandro , Rodríguez Castro Trosky Alberto , Mejía Aguilar Mónica Sofía , Bastidas Valle Inés María , Reyes Pozo Mauricio David
Published: April 2023

El aumento progresivo de la población requiere que se gestionen técnicamente nuevos lugares para constr ucción y asentamientos humanos, razón por la cual la planificación territorial constituye una importante herramienta para los diferentes niveles de gobierno. El presente estudio se enfoca en la generación de la Capacidad de Acogida (CA), utilizando la ecología del paisaje, para determinar zonas compatibles o incompatibles para proyectos de constr ucción, mediante la aplicación de geo-tecnologías permitiendo obtener información detallada (escala 1: 5 000), actualmentegenerada por el Instituto Geográfico Militar. Se eligió la ciudad de Chone, debido a su importancia en cuanto a superficie y crecimiento poblacional, además, geográficamente se ubica en zonas con alta amenaza a inundaciones, lo que genera que gran parte de su población esté expuesta a sufrir un desastre natural. Para determinar la Aptitud Física Constr uctiva (APFC) se modeló variables biofísicas de geomorfología, suelos y cobertura, zonificando diferentes clases para soportar asentamientos humanos. La CA se determina a través de la evaluación de la APFC y amenazas a deslizamientos e inundaciones. El resultado de la zonificación de CA en Chone fueron cuatro clases: alta, media, baja y muy baja. Demostrando que la mayor parte del territorio se encuentra en clase baja con un 36,67 %, debido principalmente a que sus características físicas como textura del suelo tipo arcilla pesada, pedregosidad y presencia de nivel freático, no son las adecuadas para soportar algún tipo de construcción, además, se suma que estas tierras se encuentran en zonas con amenaza media de inundaciones y deslizamientos.
tasa de interés como instrumento para la contención del nivel de inflación en México
Authors: Andrade Rosas Luis Antonio , Guadarrama Muñoz Alma Cossette
Published: April 2023

El nivel de inflación es un tema recurrente en épocas de crisis que afecta principalmente a las familias y empresas de una economía. En este trabajo, a partir de información del INEGI, se analiza el comportamiento del nivel de inflación desde el 2006 a enero de 2022. Con base en un análisis de tablas de frecuencia, se muestra que después de mediados del 2021 los niveles de inflación se incrementaron, superando el 6% del nivel de inflación. Adicional, se utiliza la tasa de interés como instrumento para contener los niveles de inflación, y a través de un análisis de regresión se deduce una relación inversa entre estos índices. En particular, se muestra que el objetivo del Banco central para 2023 de tener una tasa de inflación del 3%, nuestros resultados muestran que se logra con una tasa de interés del 8.457%, de alguna forma muy elevada. Si bien, el análisis es importante para detectar los puntos rojos de los niveles de inflación y una tasa de interés que la contenga, se muestra que, para llegar a niveles de inflación bajos, la tasa de interés debe ser alta, lo que podría ocasionar problemas más internos, pero eso se deducirá en trabajos futuros
Yüz Tanıma Sistemleri İçin Geliştirilmiş Veri Artırma Temelli Adaptif Yüz Tanıma Modeli
Authors: TAN Mustafa , EMEKSİZ Cem
Published: April 2023

Hızla gelişen bilgisayar ve grafik ara yüzüne sahip cihaz teknolojileri, yüz tanıma çalışmalarında yeni ufuklar açmışlardır. Özellikle derin öğrenme ağ mimari yapılarından biri olan evrişimsel sinir ağları (Convolutional Neural Network-CNN), yüz tanıma çalışmalarında büyük başarılar sağlamaktadır. Bu başarılar da veri setlerinin büyüklüğü önemli rol oynamaktadır. Özellikle kullanılan veri setlerindeki yetersizlik başarı oranlarını etkileyebilmektedir. Bunun önüne geçmek için ise veri tipine göre değişik veri artırma teknikleri uygulanmaktadır. Yapılan bu çalışmada yüz tanımlama problemi için derin öğrenmeye dayalı adaptif bir yüz tanıma modeli (AYTM) geliştirildi. Geliştirilen bu model kontrast sınırlı uyarlanabilir histogram eşitleme (Contrast Limited Adaptive Histogram Equalization-CLAHE), CNN ve çok katmanlı algılayıcı (Multi Layer Perceptron-MLP)’ndan oluşmaktadır. İki farklı veri seti grubu kullanılarak geliştirilen modelin performans değerlendirilmesi yapılmıştır. Özellikle veri artırma işleminin model başarısını ciddi oranda artırdığı gözlendi ve veri artırma işleminin derin öğrenme uygulamalarında gerekliliği vurgulanmıştır.
Numerical Modeling of the Sound Generated on an Intracranial Aneurysm Using Computational Fluid Dynamics
Authors: SALMAN Hüseyin Enes
Published: April 2023

Intracranial aneurysm is the enlargement of an artery in the brain which may lead to rupture and result in serious health disorders. The exact mechanism of aneurysm formation is still unclear; however, the disturbed hemodynamics take part in the initiation of the vessel enlargement. In this study, a simplified intracranial aneurysm is numerically investigated to elucidate the disturbed flow conditions and the generated sound on the aneurysm wall. In order to determine the generated sound, the pressure fluctuations on the inner wall are obtained using computational fluid dynamics simulations. Large eddy simulation model is employed to find the unsteady flow pressures. The results indicate that the sound levels increase at the proximity of the intracranial aneurysm. The sound levels on the aneurysm are compared to the sound levels on the sites with normal vessel diameter, and it is seen that the aneurysm results in about 10 dB increase in the sound generation. This relative increase in the flow-generated sound is important in terms of the diagnosis of the intracranial aneurysms, which can be used as a diagnostic tool for the early detection of the aneurysm before facing with the serious symptoms.
An Experimental Effort on Impact Properties of Polylactic Acid Samples Manufactured by Additive Manufacturing
Authors: BOLAT Çağın , ERGENE Berkay
Published: April 2023

Additive manufacturing (AM) has been highly popular in recent years and the number of scientific efforts on this useful manufacturing way has increased day by day. Up to now, the majority of the studies accumulated on the physical and mechanical properties of the three-dimensional (3D) printed specimens. In this paper, the impact properties of the additively manufactured polylactic acid (PLA) parts were addressed in detail. All specimens were manufactured by way of fused deposition modeling (FDM). After the manufacturing, hardness and surface roughness measurements were carried out to probe the effectiveness of the offered FDM technique. In order to detect impact features of the PLA specimens, Charpy v-notch impact tests were conducted and the influence of the notch angle was examined. As for the manufacturing parameters, the factor of infill density was altered and its effects on the impact behaviors of the specimens were established. Furthermore, micro and macro damage analyses were performed elaboratively on tested PLA specimens to comprehend the main mechanism of deformation better.
Numerical Determination Of Cooling Performance On Heat Sink Using Impingement Jet
Authors: KARABEY Altuğ , AL-ANI Rami Abdulraheem Abdulrezzaq
Published: April 2023

The use of impingement jet technics drew significant attention of researchers in the recent period. In this method, significant heat transfer rates are achieved. The present study examined the cooling performance of the fin pairs, which are aligned in a consecutively enlarging-contracting pattern and have a rectangular geometry, on a heat sink. The target geometry was optimized in the previous study by using the Taguchi method. The analyses were performed using four different impingement jet velocities (10, 12, 14, and 16 m/sec.), three different nozzle diameters (D=50, 63, and 75 mm), three different heat flux values (q=2222, 3333, and 4444 W/m2), and constant nozzle-to-target distance (h/d=1) were analyzed. These results were simulated numerically by using the ANSYS Fluent software. The k-ε realizable turbulence model was selected as the best model. The numerical results showed that the mean Nusselt number is directly proportional to the increase in the Reynolds number. The Nusselt number also increased with the increasing nozzle diameter value. The results are illustrated graphically (Nu-Re) in the present study. The peak value of the local Nusselt number was found to be at the stagnation point.
Elyaf Takviyeli Çimentolu Levhaların Derzli-Delikli Akustik Panel Olarak Kullanımında Perforasyon Özelliklerinin Etkisi
Authors: GÜNDÜZ Lütfullah , KALKAN Şevket Onur
Published: April 2023

Perforeli çimentolu levhalar özellikle iç mekân gürültü kontrolünde bir ses emici malzeme olarak kullanılmaktadır. Bu çalışmada, plakaların bir yüzeyinden ortalama 4 mm genişliğinde ve 6 mm derinliğinde oluklar (yarıklar) açılarak bir yüzü oluklu ve derzli form kazandırılmıştır. Çalışma kapsamında akustik performans irdelemesi için üç ayrı perforasyon oranı tasarlanmış olup sırasıyla %5.5, %8.0 ve %12.6 oranları elde edilecek şekilde levha örneklerinin diğer yüzeyinde ortalama 10 mm derinliğinde delikler açılarak perforeli test örnekleri hazırlanmıştır. Bu forma dönüştürülen levhaların ses yutma özellikleri irdelenmiştir. Delikli perforeli test örnekleri için uygulanabilirlik kesitine bağlı olarak 3 ayrı grup numune hazırlanmıştır. Bunlar; tek bileşenli yalın formda derzli perforeli çimento bağlayıcılı akustik levha (Yalın-I levhası), geotekstil katmanlı iki bileşenli derzli perforeli çimento bağlayıcılı kompozit akustik levha (Geo-II levhası) ve polietilen esaslı kauçuk katmanlı iki bileşenli derzli perforeli çimento bağlayıcılı kompozit akustik levha (PE-II levhası). Her üç grubun ses yutma özelliği referans örneği olarak test edilen düz-dolu yüzey formunda herhangi bir derz ve perfore işlemi yapılmamış elyaf takviyeli çimentolu yalın levha örneği (kontrol levhası) ile karşılaştırılmıştır. Çalışma sonuçlarına göre, derzli perforeli form kazandırılmış levha örneklerinin perforesiz düz levha formu performansları ile karşılaştırıldığında görüldüğü üzere düz levhanın absorpsiyon özelliği yüksek frekans band değişiminde artış gösterirken, derzli perforeli levhaların absorpsiyon özelliğinin ise düşük frekans bölgelerinde daha etkin absorpsiyon özelliği göstermektedir. Ayrıca, polietilen esaslı kauçuk malzemenin yalıtım katmanı olarak kullanımı, derzli ve perforeli kompozit formda çimento bağlayıcılı akustik levhaların ses azaltma karakteristiğine perforasyon oranına bağlı olarak yüksek emici ve/veya mükemmel emici birer nitelik kazandırmaktadır.
Geri Dönüştürülmüş Polipropilen Kompozitlerde Bitkisel Atık Yağ ve Atık Gazete Kağıdı Liflerinin Değerlendirilmesi
Authors: BORAN TORUN Sevda , ÖZDEMİR Mevlüt , PEŞMAN Emrah , DÖNMEZ ÇAVDAR Ayfer
Published: April 2023

Bu çalışmada lignoselülozik dolgu maddesi olarak atık gazete kâğıdı lifi, bitkisel atık yağ kullanılmış, polimer olarak da geri dönüştürülmüş polipropilen kullanılmıştır. Atık gazete kâğıdı öğütülüp ve yaklaşık 24 saat boyunca 60˚C˚'de kurutma fırınında bekletildikten sonra %10, %20 ve %30 oranlarında geri dönüştürülmüş polipropilen ile karıştırılmıştır. Atık bitkisel yağ ise %2.5 oranında ilave edilmiştir. Karışımlar 170°C,175°C,180°C,185°C ısı kademelerinde ayarlanmış olan ekstrüzyon makinasına konulmuştur. Ekstrüzyon yöntemiyle üretilen kompozitlerin mekanik ve termal özellikleri belirlenmiştir. Atık gazete kağıdı lifi oranının ilkin eğilme mukavemetini azalttığı, daha sonra ise arttırdığı gözlenmiştir. Termal özelliklerde atık bitkisel yağ kullanımının olumlu etkisi olup ısıl direnci arttırmıştır. DSC analiz sonuçları incelendiğinde, atık gazete kağıdı lifinin kristalenliği arttırdığı sonucuna varılmıştır. Bu çalışma ile tümüyle atık olan bileşenlerin kompozit üretiminde kullanılabilir olduğu ve vaks gibi atık bitkisel yağların kullanılabileceği sonucuna ulaşılmıştır.
Kademeli İleri Geri Yayılım ve Gauss Fonksiyon Modelleri ile Pomza ve Diatomit İçeren Çimento Harçlarının Basınç Dayanımlarının Tahmini
Authors: GÜVENÇ Uğur , KOÇAK Burak
Published: April 2023

Bu çalışmada, yapay sinir ağı (YSA) ve uyarlamalı ağ tabanlı bulanık çıkarım sistemi (ANFIS) ile pomza ve diyatomit içerikli çimento harçlarının basınç dayanımlarının tahmini yapılmıştır. YSA için kademeli ileri geri yayılım algoritması, ANFIS için ise Gauss üyelik fonksiyonu tercih edilmiştir. Modellerin oluşturulmasında toplam 7 tip çimento ile üretilen harçların 2., 7., 28. ve 90. hidratasyon günlerinde belirlenen basınç dayanım sonuçları kullanılmıştır. Modellerin eğitim ve test süreçlerinde; 5 giriş (hidratasyon günü, Portland çimento, pomza, diatomit, su) ve 1 çıkış (basınç dayanımı) parametresi kullanılmıştır. Deney sonuçlarıyla modelden elde edilen sonuçların karşılaştırılması R2, MAPE ve RMSE gibi istatistiksel yöntemlerle gerçekleştirilmiştir. Elde edilen veriler, YSA modeli ile elde edilen sonuçların tüm hidratasyon günleri için hemen hemen gerçek değerlere ulaşıldığını ve bu modelin başarılı bir tahmin modeli olduğunu göstermektedir.
Person Recognition from Gait Analysis for Smart Spaces by using MLP-based DNN model
Authors: YÜCELBAŞ Cüneyt
Published: April 2023

In smart fields, security measures are taken to protect people against threats that may arise by using technology and to provide crisis management, and the functions of measuring area security and ensuring its effectiveness are carried out. As an element of this measurement, it is thought that person recognition may be the most important factor in the future. It is seen that deep learning-based algorithms, which can provide fast and high-accuracy results with many data, will be an integral part of this sector in the future as they are today. However, when the literature is examined, it is understood that the number of research in which Deep learning algorithms are used in order to increase the success of the studies in this direction and the system practicality is insufficient. For this reason, in this study, deep learning was used to recognize people by using the walking data of 15 people obtained thanks to wearable sensors. Since the increase in the diversity of the data will positively affect the learning of the created model, data augmentation has been made and these data have been classified in the MLP-based DNN model. The results were statistically analyzed and showed that this model exhibited excellent performance in person recognition from walking data. In addition, the ACC rate was found to be 100%, and it proved that the method used to increase the data also produced successful results in walking data. It is thought that the success of the study can provide important perspective support to new studies for smart fields in the literature.