bluuebunny/crossref_metadata_2025 huggingface dataset:
Biological efficiency ofPseudomonas fluorescensstrains against pathogens of Brassicaceae black rot under controlled conditions
Authors: Panchuk Sergey , Tareeva Marina , Fokina Ekaterina , Ignatov Alexander
Published: September 2023

The bacteriumXanthomonas campestrispv.campestriscauses black rot of cruciferous plants, the most harmful bacterial disease of a wide range of cole crops. Breeding for resistance to the pathogen is carried out considering the racial structure of the pathogen population discovered in 1992 and the race-specific resistance reaction in plants of the Brassicaceae family. The model describing the gene-to-gene relationship between the pathogen and plants does not consider biometric indicators associated with the pathogen’s effect on the suction, conducting, and photosynthetic systems of plants. In this paper, the effect of infestation of spring rape plants withXanthomonas campestrisraces 1 and 6 on biometric indicators of plants important for crop formation is studied. A significant positive effect of the use of a preparation based on antagonistic bacteriaPseudomonas fluorescens(Binoram preparation) on the growth and stability of spring rape has been shown.
Improving the technology of obtaining high-vitamin greens of minor species of perennial onions during forcing in protected ground
Authors: Karpukhin M.Yu. , Tymchenko L.N.
Published: September 2023

In 2022-2023, experiments were conducted to study the effect of additional lighting on the growth, development, and vitamin C content of perennial onions during their forcing in protected ground in winter. Getting green vegetables in the cold season is of particular relevance in the Middle Urals, since the population during this period is particularly susceptible to immunity decrease, due to a lack of solar energy, a deficiency of vitamins and biologically active substances, therefore forced to use synthetic vitamins to strengthen its immunity. Although it is known that the vitamins contained in food bring the greatest benefit. Adding green onions to food is one of the simplest and most inexpensive ways to enrich the diet of the population. The use of perennial species of onions, which have a different appearance and taste different from each other, is also a way to diversify it. The purpose of the research: to study the effect of additional lighting on the yield of perennial onions and the vitamin C content during their forcing in winter using the method of immersion hydroponics. During the experiments, such indicators as changes in leaf length and the number of leaves on the plant, as well as individual plant productivity and yield were recorded. In addition to phenological observations, research was conducted on such indicators as the concentration of cell fluid, electrical conductivity, PH of perennial onion leaves. As a result, it was found that Allium nutans, which was grown without supplementary lighting, has the highest yield – about 2.5 kg/m2. For all the studied types of onions in 2023, results were obtained for higher electrical conductivity in onions grown with additional lighting. The difference was 27-61%. All the results obtained were processed using mathematical statistics methods. The results of experiments on the effect of additional lighting did not give unambiguous results, further more detailed study is required.
Cytotoxicity of some preservatives for cultureChlorella VulgarisGKO strain
Authors: Azhikina O.Yu. , Makhnin I.A. , Berenev Yu.E. , Karpenko L.Yu.
Published: September 2023

One of the ways to preserve the culture of microalgae for a long time is conservation. All modern methods of preservation and long-term storage of microorganism cultures are based on the transfer of cells to a state of anabiosis, in which metabolic processes are either completely or partially stopped. One of the mechanisms that are realized during the transition to the anabiotic state is a change in cell permeability. This can be achieved by modifying the culture medium. Thus, the search for preservatives that contribute to the long-term preservation of biomass is very relevant. The primary condition for the use of any preservative or a new component of the culture medium should be the absence of a toxic effect on the cell culture. Goal of the work: to determine the cytotoxic effect of some preservatives for the cell culture ofChlorella vulgarisGKO strain. The cytotoxicity of ascorbic acid, lactic acid, citric acid, acetic acid, sodium chloride and urotropin was analyzed for the cell culture ofChlorella vulgarisstrain GKO. The following parameters were determined: pH ofChlorella vulgarissuspension with preservative; Total number of cells, MM/ml; The ratio of dead cells to the total number of cells,%; Specific growth/death rate; The optical density of the suspension; The difference in the average optical density,%; Cell size (diameter), µm pH of suspension ofChlorella vulgariswith preservative; Total number of cells, MM/ml; The ratio of dead cells to the total number of cells,%; Specific growth/death rate; The optical density of the suspension; The difference in the average optical density,%; Cell size (diameter), µm pH of suspension ofChlorella vulgariswith preservative; Total number of cells, MM/ml; The ratio of dead cells to the total number of cells,%; Specific growth/death rate; The optical density of the suspension; The difference in the average optical density,%; Cell size (diameter), µm
Influence of microwave pretreatments on the duration of freeze-drying of onions and beets
Authors: Kadirov Ulugbek , Aripov Mirolim , Sagdiyev Xasan , Mamatov Sherzod , Artikov Askar
Published: September 2023

In the work, an overview of freeze drying was made, as well as the use of pre-treatments with microwave waves. The change in temperature during freeze-drying of onion and beet samples with and without pre-treatment was experimentally studied. When processing the product with short-wave electromagnetic waves, it was noticed that the freeze-drying process without pre-treatment of the product was 5 hours longer than for dried samples with pre-treatment in the microwave range.
Nephrolithiasis and uricosuria diagnostics in dogs
Authors: Mukiy Yu.V. , Bogomaz D.I. , Pavlova O.A.
Published: September 2023

Nephrolithiasis and hyperuricosuria is a common pathology in dogs of various breeds. The problem of breeding lies in the fact that the diagnostic methods used: X-ray examination, determination of lipid composition in the blood and the urogenital microbiome, do not allow early diagnostics in young dogs before the onset of clinical changes, as well as to identify animals carrying mutant alleles of disease candidate genes. We have developed a test system for nephrolithiasis and uricosuria diagnostics in dogs, including primers and allele-selective probes. A control plasmid solution was used as a matrix. The system is based on the use of the TaqMan method. This test system allows for early diagnostics of animals with mutant alleles to monitor the state of health during ontogenesis, as well as the exclusion of these dogs from breeding before their puberty.
The effect of serum lipids and spermoplasm on the stallion sperm quality
Authors: Atroshchenko M.M. , Shirokova O.V. , Romanova A.I. , Frolova N.A.
Published: September 2023

The quality and cryoresistance of stallion sperm depend on many endogenous and exogenous factors. One of the factors affecting the sperm quality are the parameters of the lipid spectrum of spermoplasm and blood serum. Lipase activity, cholesterol and triglyceride content in blood serum and spermoplasm were studied in 19 stallions of the Arabian breed aged from 5 years to 15 years (on average 10.1±0.3 years). It was found that lipase activity in the spermoplasm (217.0 U/l) is on average 11.4 times higher than in the blood serum (19.1 U/l). The concentration of spermoplasm triglycerides (1.3 mmol/l) is on average 4.3 times higher than in blood serum (0.3 mmol/l). The concentration of cholesterol in the blood serum (2.4 mmol/ l) is on average 12 times higher than the same indicator in the stallion spermoplasm (0.2 mmol/l). The relationship between the parameters of the lipid spectrum of blood serum and spermoplasm with the characteristics of stallion sperm was studied. A significant relationship was found between the activity of lipase in blood serum with progressive mobility (r=0.66; p=0.006) and survival (r=0.67; p=0.005) of spermatozoa in cryopreserved sperm.
Ways of improvement of herds, the development and verification of the mate selection method
Authors: Giloyan G.H. , Kasumyan N.A.
Published: September 2023

The research was performed in Shahumyan “Agroservice” OSC cattle pedigree farm. The verification of the performed selection and mate selection by mathematical analytical method confirms that, by the targeted breeding of newborns obtained by the use of the bulls of Austrian Swiss breed, in the first birth of F2 generation it’s possible to increase the average productivity of the given herd from 2500 kg to 5734 kg. Thus, we suggest applying diagram 1 for the purposes of maintaining and improving the Brown Caucasian breed. Within the framework of the program of cattle breeding development in the Republic of Armenia for the period 2019-2024, established by RA government decree N 327-L of March 29, 2019, it’s been intended to replenish the herds with pedigree cattle of valuable production-economic features, instead of animals of unknown origin, unfit for reproduction and of low productivity, and to develop the pedigree work. It’s known that the cattle breeding in the Republic is performed with the generation obtained by free mating with underdeveloped bulls of low productivity. For this reason, underdeveloped calves of low living mass are born, and the considerable part of them are bred in insufficient conditions of feeding and stall housing, thus impeding the renewal and replacement of herds with heifers that meet the requirement of the breed first class living mass.
Methods of increasing the productivity of various varieties and hybrids of variegated alfalfa in the conditions of arable farming biologization
Authors: Kamova Alexandra , Stepanova Tatiana , Orlova Anna , Stepanova Galina , Rumyantseva Marina
Published: September 2023

Two-year studies of variegated alfalfa (Medicago varia Mart.) of the following varieties and hybrids were carried out: Pastbischnaya 88, Taisia, Agnia VIC, 506 and SGP, as well as observations of their reaction to inoculation. Strains of nodule bacteria Sinorhizobium meliloti were used as inoculants: SHM1-105, 415, A-1, A-5, and a control variant without inoculation. As a result of research, it was revealed that the minimum length of stems in 2021 was fixed in the Pastbischnaya 88 + 415 variant, and amounted to 12.5 cm, in 2022 — Taisia with A1 and SHM1-105, 8.8 cm each. The maximum length of stems in 2021 was marked by a hybrid 506 in a combination of A1 and SHM1-105 strains, the indicator was 40.4 and 40.3, respectively, in 2022 — Agnia VIC + A5, 28 cm. In 2021, the Pastbischnaya 88 variety with the strain SHM1-105 turned out to be the most competitive, its share prevailed over the unseeded admixture, and reached 54.8%, in 2022 variant Agnia VIC + 415 was distinguished with this indicator, with a mass fraction of 65.45%. The positive effect of inoculation was revealed, the best symbiotic varietal microbial systems were determined. The strain of nodule bacteria 415 is marked by a complex effect on all varieties of variegated alfalfa. According to the yield of dry weight (3.3 t/ha on average), the Taisia variety and the SGP hybrid were distinguished.
Innovative approaches to the development of dairy cattle breeding in the Kaluga region
Authors: Mazurov Vladimir , Sanova Zoya
Published: September 2023

The use of innovative approaches to the development of breeding cattle in the region has significantly increased and improved the productivity of animals. So, over the past 5 years, gross milk production has increased by 192 thousand tons or 171%, milk yield per cow by 2705 kg and amounted to 8745 kg in 2021. The breed composition of cows has changed, the Holstein breed with a specific gravity of about 80% has become the predominant breed of dairy cattle in the Kaluga region. The selection of bulls is aimed only at the bulls-leaders of the Holstein breed and their sons. IT technologies are actively used in the management of regional dairy cattle breeding in the region.
Methodological tools for assessing the impact of priority factors in the development of the region on the quality of development of the fruit and vegetable market
Authors: Lysenko Yu.V. , Zakharova P.S. , Lysenko M.V. , Belokonov Yu.V.
Published: September 2023

The subject of the study is a complex of social relations in the fruit and vegetable industry that arise in the process of providing social support measures to the rural population of the region through the use of new information and communication technologies. The purpose of the work is to identify the digital architecture of methodological tools that help improve the efficiency of providing social support measures to the rural population of fruit and vegetable specialization. As a result of the study, it was revealed that the decreasing number of labor resources that provide fruit and vegetable specialization of the Chelyabinsk region can be replenished by immigrants from other regions and migrants. Based on the digital architecture for diagnosing labor resources and the level of employment of the rural population of the fruit and vegetable specialization of the Chelyabinsk region, the forecast of its number, proposals are put forward to increase the number of labor resources in working age and the effectiveness of these proposals is evaluated. Therefore, for the growth of the labor force, it is necessary to increase the level of employment at the expense of the economically inactive rural population or the growth of migration. Thanks to the digital architecture, the dynamics of employment in the fruit and vegetable specialization of the Chelyabinsk region in 2021–2022. a correlation-regression model has been built, demonstrating a downward trend in the share of the employed rural population in the total number of economically active population.
Information systems in organic agriculture: foreign experience
Authors: Zaruk N.F. , Romantseva Yu.N. , Kagirova M.V. , Kharitonova A.E. , Kolomeeva E.S.
Published: September 2023

The article is devoted to the relevant topic of the application of information systems and technologies in organic agriculture. The authors substantiate the importance of using such systems to improve the efficiency and competitiveness of farms in the context of green economy development. There is a need to implement IT solutions to optimize business processes, accounting, data analysis, logistics, and sale of organic products. Based on the study of the positive experience of countries with developed organic production on the use of specialized information systems, it is concluded that the introduction of digital technologies, technologies involving automation of production, technological and management processes, will contribute to the long-term development of organic agribusiness, will produce better products with less harm to the environment, and will also increase the efficiency of organic production due to more economical use of resources. At the same time, the author points out a number of limitations: high cost of implementation, lack of qualified personnel among farmers, insufficiently developed infrastructure in rural areas. Nevertheless, the author sees the prospects for the development of organic agriculture in the creation of cloud solutions, integration with mobile technologies, the use of big data and artificial intelligence at all stages of the movement of products from the manufacturer to the consumer. In general, the article is of practical value, gives an idea of the current level and prospects of organic agriculture digitalization.
Beneficial Evaluation of Residential Dual Water Supply System
Authors: Fu Lei , Wang Junmin , Wang Shiwu , Hu Guojian , Jin Qiannan
Published: September 2023

The scientific development and utilization of regional unconventional water resources and the implementation of high-quality water supply at the county level is beneficial both in the water resources allocation and the water shortage alleviation. It is also important in improving the human society as well as protecting the ecological environment, which shows significant economic, social and environmental benefits. The beneficial evaluation analysis of the development and utilization of regional unconventional water resources and the potential of dual water supply are conducted in this study. The reasonable beneficial evaluation of the utilization of unconventional water resources and regional dual water supply system are of great significance to the regional effective water sources allocation and water supply method.
Dossier « Recherches sur la question animale : entre mobilisations sociétales et innovations technologiques » – La résistible ascension de l’éthique ? Sciences sociales et question animale
Authors: Michalon Jérôme
Published: September 2023

L’objectif de cet article est d’analyser les rapports entre les sciences sociales et la montée en puissance de la cause animale. Retraçant la manière dont l’objet « relations humains-animaux » s’est constitué dans les contextes anglo-américain et français, je défends l’idée que l’évolution générale de ces recherches participe de la montée du zoocentrisme. Plus spécifiquement, j’analyse la manière dont les théories antispécistes et l’éthique animale, très influentes dans le monde anglo-américain, ont été reçues en France. Les critiques formulées à leur encontre par les universitaires en sciences sociales sont particulièrement étudiées. Je montre comment ces critiques contribuent – paradoxalement – à constituer l’éthique animale en point de passage obligé pour toute réflexion académique sur les rapports aux animaux, en lui offrant un nouvel espace éditorial, celui des sciences sociales.
The good collaboration between social entrepreneurship and rural areas – innovative approaches for community development and implementation
Authors: Gospodinova Elena
Published: September 2023

In the current study on the topic “The good collaboration between social entrepreneurship and rural areas - innovative approaches for community development and implementation”, we will follow the path of social organizations that have successfully introduced people from socially vulnerable groups into agronomy and the production of agricultural products, training them how to be farmers and increasing competitiveness and entrepreneurial spirit among them. The isolation of the so-called “marginalized groups” of society is not in the service of the Bulgarian economy, and the fertility of our lands, which we are proud of in front of the whole world, has today turned into a wasteland. We will study the development opportunities and the results achieved by the organizations, introducing the Roma population, people with mental retardation or motor deficits in the production of agricultural products, improving their knowledge, creating good development opportunities in the depopulated agricultural areas. Projects such as the social enterprise “Bee” in the village of Hayredin, Vratsa region, which have successfully involved unemployed persons from minority groups in the production of honey and bee products, teaching them how to be beekeepers and providing them with beehives, are among the examples of successful social an entrepreneurial project that improved the quality of life of people from vulnerable groups in depopulated regions. Good examples are among us, and they deserve their special attention.
Industry 5.0, Digitalization of business and Circular economy
Authors: Sterev Nikolay
Published: September 2023

As we are on the road to the next generation of the business organizations: Industry 5.0, we need to understand how the digitalization is connected to the requirements of the circular economy. Although we could find a statistical evidence for such strong relations, the digitalization is much more requisition for the business success as the circular economy is a business intention. Thus, there is not significant reason-react dependence between these two business processes. And the paper aims to find out the exact dependence between them. Thus, the paper not just present the main foundations of the digitalization and circularity of economics (in 1st paragraph) but develop a research instrument (in 2nd paragraph) for analysis the exact correlation between ““industrial policy”” - ““Industry 5.0 digital instruments development”” - Policy for Circular Economy development. The main results are focused on the preferred policy instruments that force up the development of circular economy based on the business intention to digitalization and Industry 5.0 application.
Identifying the potential of the North-West planning region in Bulgaria to create innovation-based incubators
Authors: Blagoev Dimitar
Published: September 2023

Traditionally, innovations have been in the focus of researchers since their introduction, as a concept by Schumpeter, to the present days. In the last decade, these trends have intensified, and more and more researchers are directing their research into the innovation field. The connections of innovations with the results of companies, the success of innovations, the environment for innovations, etc. are investigated. The main goal of the present study is to reveal the potential of the North-West Planning Region in Bulgaria to create an innovation-based incubator/s, that will be part of the innovation environment, support companies in their innovation activity and thus contribute for economic growth in the region. The main methods used are the office survey, statistical methods /collection of statistical information/, trend method, factor analysis and scenario method. Based on the collected statistical information and its secondary processing, certain regularities and trends have been deduced for the potential for creating innovation-based incubators. Through the method of scenarios, the potential usefulness of such structural elements of the innovation environment for increasing the innovativeness of the companies of the region has been determined.
Innovations in Tillage
Authors: Branzova Petia , Dimitrova Annie
Published: September 2023

Modern agriculture uses many new practices, methods and technologies to improve the quality, increase the production volume, and generate higher incomes. The implementation of innovations by the agricultural producers can cover the different production stages of cultivating crops or farming livestock. The goal of this paper is to outline the innovations applied in tillage. They are classified by type like: mechanical innovations, innovative fertilizers and preparations, innovative ways of irrigation, and, last but not least, innovations to minimize the adverse effects of the farm activity. Based on statistical data and data from a survey on the subject, conclusions are drawn about the attitudes of the farmers regarding the innovations used in tillage. The paper analyzes the most frequently applied innovative solutions, it specifies their type they and makes recommendations for their more effective use.
Innovations as a Means of Transition to a Circular Economy and Innovatively Active Enterprises in Bulgaria
Authors: Ivanova Radka P.
Published: September 2023

Climate changes shortened life cycles of products and services, the consumption of a large part of non-renewable natural resources, the continuous increase in the population of the planet all lead to the need to find new ways and means to satisfy people’s needs. The matter of utilizing more efficient use of resources, development of such products that allow reuse through repair and recycling is crucial nowadays. A reorientation is needed from the well-known traditional linear system of using raw materials and creating large amounts of waste to a new system that allows circularity. This is the basis of the circular economy, the implementation of which implies the creation of new products, that allow their subsequent recycling and reuse of the resources invested in them. The aim of this article is to analyze the features of the circular economy, its interrelationship with innovation and the degree of innovation orientation of the Bulgarian enterprises.
The circular economy as a tool for achieving environmental sustainability
Authors: Petrova Vessela
Published: September 2023

Human well-being is closely related to the health and sustainability of the environment. People need clean air to breathe, fresh water to drink, and places to live free of toxic substances and hazards. There are many problems that hinder environmental sustainability, including environmental pollution from industrial production, carbon emissions and waste; inappropriate waste management; economic interests and disclaimers by companies and governments and individual behaviour and consumer habits. All these problems require systemic solutions and global coordination between governments, businesses and the public to ensure environmental sustainability and the preservation of natural resources for future generations. Thе publication analyses the concept of environmental sustainability and the circular economy as an approach to achieving it, as well as the relationship between increasing carbon dioxide emissions and the number of world populations.
Web application of movie catalogue with React
Authors: Zlatinov Zlatin , Angelova Nadezhda
Published: September 2023

In modern digital society, the requirements for digital services applies its influence in developing new tools for building web applications. One of those tools is React, an open-source front-end library for creating user interface (UI) for websites and web applications with responsive design. Proof of the popularity and the advantages of React is the number of websites and web applications, which use it (according to the statistics, they are more than 11 million). The aim of the article is to reveal the main characteristics and advantages of React technology by comparison with another web tool Angular and. to present a web application for movie catalogue, developed with JavaScript and React library. It consists of Home page, Catalogue page (movies), About Page, Login page, Register page, and a Sign-out button. Main functionalities: non-register users (guests) can only view the page. A guest can register as a new user or login if it is already registered. The users can create new elements (movie publication), edit or delete their own publication. If a user is not an owner of the publication, they can comment or like other user’s publications.
Development of Bulgarian agriculture within the CAP in the EU 2007-2020 in the context of the green deal, farms and employed people, relative to location index for rural areas of the South Central Region
Authors: Popov Rumen , Marinov Petar
Published: September 2023

Agriculture occupies a basic place in the economy of Bulgaria. A key sector on which a large part of production in the country is based, regardless of the political or socio-economic processes taking place during different time periods. The purpose of the scientific development is to present the development of the Gross value added (GVA) of agriculture in Bulgaria for the period 2007-2020, base prices, subsidies for production and agricultural labor in annual work units (AWU). The research includes the application of methodology and analysis of the Location Index (IL) of agricultural holdings and employed persons in the rural areas of the South Central Region (SCR) for the specified period, as well as the influence of the “green deal” as a socio-economic factor. Makes a comparative analysis of the employed persons, in relation to the region and the country during the research period.
Effects of Digitalization and Intangible Assets in the Crop Production Sector
Authors: Stoyancheva Dimitrina , Doncheva Dora
Published: September 2023

In economic research, the introduction of digital innovations in agriculture is identified as a critical factor for changing business models in terms of creating economies of scale, improving productivity and efficiency within a single farm, and creating and capturing value in the agricultural sector. The present study attempts, on the one hand, to systematize the effects of digitalization processes in relation to the crop sector from available research. On the other hand, it analyses empirical data of crop farms through the lens of digital transformation. An econometric analysis was carried out, using data from enterprises from the crop growing sector that carry out costs related to innovation activities. The scope of the study covers a period of five years.
Innovations in beef breeding - opportunities and problems
Authors: Chernaev Petar
Published: September 2023

Today, the world is experiencing an environmental crisis that is far more dangerous than an economic one. The search for and implementation of innovations that support business should also be consistent with their ecological effect. Raising animals for food originated more than 8,500 years ago, and today meat is part of the diet of most people. Beef farming has reached the stage where implementing digital innovations is a necessity. Unfortunately, when implementing new solutions, the effect on nature is often not evaluated. The environmental impacts may be irreversible or difficult to reverse and may require a much higher cost to remedy. The purpose of the research is to compare the profitability of the implemented solutions, in relation to the environmental problems. The results of the study of some of the most widespread innovations can be systematized in several directions. The implementation of animal control systems on pastures could destroy the natural habitat of wild animals and technical solutions should be sought that reduce these impacts. Tracking the behavior and collecting biometric data from the animals can also be done with non-invasive methods, which will be much more humane and will not disturb the ecological balance in relation to the bees. The main problems are related to the access of wild animals to food and water in control systems by restricting pastures and the use of certain frequencies to transmit the biometric data of the animals and their impact on both farmed animals and bees and other species in the wild. In conclusion, the profitability of beef pasture animal husbandry has the possibility to increase without significant damage to nature, if it is approached relatively individually to each specific regional project in Bulgaria.
Place and role of the agricultural sector in the national and regional economic structure
Authors: Stoycheva Ivanka
Published: September 2023

The agricultural sector is an important branch that leads to significant changes in the national and regional economic structure, as well as in trend formation impacting the economic development of the country. The changes related to the sectoral structure of the branch determine the place the country occupies with respect to its economic development. The present study aims to analyze and compare the relative share of some main economic indicators defining the place and the role of the agricultural sector in the economy of the EU and Bulgaria, the relationship of agriculture to the other sectors, and to evaluate the dynamic changes in the sectoral structure over a longer time period. The study shows that Bulgaria still lags behind the other EU member states from the perspective of restructuring economy and allocating resources from the agricultural sector to the other two sectors.
Sociological features of violence among students in conditions of social crisis
Authors: Dimitrova Albena , Simeonova Daniela
Published: September 2023

Violence is a dynamic process, a rapidly changing phenomenon having a regional manifestation. The causes of violence in a school environment are complex and arise from various factors of a personal and societal nature. The research interest is related to the review of current issues related to violence, physical education and sports, as well as normative aspects of regulation to optimize social processes in the specific sphere, as part of the processes taking place in our society. The purpose of the empirical sociological research is to establish the content and characteristics of violence among students at school, ways to overcome and control in conditions of social crisis. To solve the main tasks, achieve the goal and prove the hypothesis, a complex methodology of researching literary and normative sources, content analysis was applied. Based on an in-depth analysis of qualitative and quantitative data in several metropolitan schools, the dominant causes and factors of student violence are explored. The impact of physical education and sports as a factor in the prevention of violence is analysed. Conclusion: the prevention of violence in schools between students requires systematic actions and specialized training, preparation of all institutions, educational programs in support of tolerance.
Study of part of non-agricultural activities in rural areas of South-Central region of Bulgaria for the period 2010 – 2020
Authors: Marinov Petar
Published: September 2023

Rural areas (RA), according to their geographical determination, are determined by specific characteristics for each of them. The administrative affiliation, on the other hand, fixes the socio-economic profile and in relation to this direction, the aim of the scientific study is to investigate some of the non-agricultural activities - Hotel and restaurant industry (I), Education (P) and Human health and social work (Q) in the rural areas of the South-Central Region (SCR) for the period 2010-2020. The study includes employed persons and enterprises in the specified subsectors. The aim of the current development is to track the movement of employed persons and enterprises in the RA of the country. These subsectors are related to the socio-economic status of these territories. Deductive, comparative method and Localization Index (IL) have been applied. Analysis and conclusions are made based on the Index of localization of the various activities, comparing them to the territories according to the NUTS classification. The conclusion and the findings are based on the results indicated in the study. The Classification of Economic Activities (CEA) of 2008, EU Regulation No 1893/2006 of the European Parliament and of the Council of 20.12.2006 have been applied.
Labor integration of refugees in a socio-economic perspective
Authors: Dragneva Joanna
Published: September 2023

As in most European countries, as in our country, migrants have lower employment rates. However, there are differences between different groups of migrants. Refugees, as a separate and more specific migrant group, are much less integrated in the labour market. Their concentration tends to be in larger cities and regions, which creates numerous challenges for local authorities and labour markets. On the other hand, tracking the work, benefits and effects of refugee integration can support a more systematic approach to studying their labour integration based on actual activities. Given this, the purpose of this report is to emphasize the labour integration of refugees in a socio-economic perspective with a focus on the benefits of the process in the territory of Sofia. Research methods include synthesis and analysis of various sources, as well as review of the work of organizations, institutions and structures involved in the process. The results represent efforts and progress in relation to the labour integration of refugees, through cooperation and building sustainable partnerships. The conclusions show that in this way, not only policies, measures and good practices can be created to serve for the more successful integration of refugees, but also to achieve benefits and effects for the cities with their higher concentration of economic and social point of view.
Update Ganzkörper-CT-Traumaspirale: Empfehlungen und
Strahlenschutz
Authors: Jehmann Sebastian
Published: September 2023

Das Thema der Untersuchungsverfahren von Traumapatient*innen in der CT
ist stetig aktuell. Unzählige Protokollvorschläge,
unterschiedliche Untersuchungsansätze inklusive CT-Phasen, eine
Fülle von Gerätegenerationen sowie neue Herangehensweisen
münden in immer wieder neuen Goldstandards und aktualisierten
Protokollen. In diesem Beitrag werden Empfehlungen und
Strahlenschutzmöglichkeiten bei der Ganzkörper-CT-Traumaspirale
aufgezeigt.
Myokardperfusionsszintigrafie: IQ-SPECT-System und
LEHR-Kollimator
Authors: Radmayr Sarah
Published: September 2023

Myokardperfusionsszintigrafien wurden bis vor einiger Zeit
standardmäßig mit LEHR-Kollimatoren durchgeführt.
Heutzutage kommt vermehrt das IQ-SPECT-System mit Smartzoom-Kollimatoren zum
Einsatz. Dabei lassen Herstellerangaben und Studiendaten den Schluss zu, dass
man durch die Verwendung dieses Systems bei kürzerer Akquisitionszeit
eine gleichbleibende Bildqualität erreicht. In dieser Studie wurden die
Herstellerangaben evaluiert und bewertet.
Editorial
Authors: Lewentat Günter
Published: September 2023

Liebe Kolleginnen und Kollegen,

ich habe im Mai dieses Jahr den 104. Deutschen Röntgenkongress in Wiesbaden
besucht. Bei dieser Gelegenheit hatte ich wieder persönlichen Kontakt zu
vielen Kolleginnen und Kollegen.
Unser Ausflug zum Norddeutschen Röntgenkongress in
Braunschweig 2023
Authors: Smolić Wiebke , Borrmann Jonas , Hadi Ayath Abdul
Published: September 2023

Am 24. und 25. Februar 2023 fand in Braunschweig der diesjährige
norddeutsche Röntgenkongress statt. Wir, das 4. Semester der MTR-Schule
Oldenburg, hatten die Möglichkeit an diesem Kongress teilzunehmen. Neben
der Industrieausstellung gab es Vorträge für
Radiolog*innen, MTRs sowie eine gesonderte Schülerlounge.
Idiopathic Isolated Adrenocorticotropic Hormone Deficiency: A
Single-Center Retrospective Study
Authors: Yang Chengyan , Li Xinpei , Ma Xiaoqing
Published: September 2023

Idiopathic isolated adrenocorticotrophic hormone deficiency (IIAD) is rare, with
high clinical omission and misdiagnosis rates. This study retrospectively
collected information on clinical presentation, laboratory findings, and
treatment response of 17 patients with IIAD at Jining No. 1 People's
Hospital from January 2014 to December 2022. The clinical characteristics were
summarized, and the pertinent data were analyzed. As a result, most of the
patients with IIAD were male (94.12%), with age at onset ranging from 13
to 80 years. The primary manifestations were anorexia (88.24%), nausea
(70.59%), vomiting (47.06%), fatigue (64.71%), and
neurological or psychiatric symptoms (88.24%). The median time to
diagnosis was 2 months and the longest was 10 years. Laboratory tests mostly
showed hyponatremia (88.24%) and hypoglycemia (70.59%). The
symptoms and laboratory indicators returned to normal after supplementing
patients with glucocorticoids. IIAD has an insidious onset and atypical
symptoms; it was often misdiagnosed as gastrointestinal, neurological, or
psychiatric disease. The aim of this study was to improve clinicians'
understanding of IIAD, patients with unexplained gastrointestinal symptoms,
neurological and psychiatric symptoms, hyponatremia, or hypoglycemia should be
evaluated for IIAD and ensure early diagnosis and treatment.
StäB oder Station? – Erste Ergebnisse zur
Studienpopulation und zur Behandlung im Rahmen der multizentrischen AKtiV-Studie
zur stationsäquivalenten Behandlung
Authors: Nikolaidis Konstantinos , Weinmann Stefan , von Peter Sebastian , Längle Gerhard , Brieger Peter , Timm Jürgen , Waldmann Tamara , Fischer Lasse , Raschmann Svenja , Schwarz Julian , Holzke Martin , Rout Sandeep , Hirschmeier Constance , Hamann Johannes , Herwig Uwe , Richter Janina , Baumgardt Johanna , Bechdolf Andreas
Published: September 2023

Ziel Die quasi-experimentelle AKtiV-Studie untersucht die Wirksamkeit der
stationsäquivalenten Behandlung (StäB). Diese Arbeit beschreibt
die demographischen und klinischen Parameter der Teilnehmenden zum
Studieneinschluss und vergleicht deren Indexbehandlungen.

Methodik Über einen Zeitraum von 12 Monaten wurden 200
StäB-Nutzende in die Interventionsgruppe (IG) und 200 stationär
behandelte Personen in die Kontrollgruppe (KG) eingeschlossen. Die
Vergleichbarkeit der beiden Gruppen wurde mittels Propensity-Score Matching
(PSM) Verfahren sichergestellt.

Ergebnisse Zusätzlich zu den PSM-Variablen unterschieden sich alle
weiteren erhobenen Charakteristika zwischen der Interventionsgruppe (IG) und der
Kontrollgruppe (KG) zum Zeitpunkt der Studieneinschreibung nicht signifikant
voneinander. Die Dauer der Indexbehandlung war in der IG signifikant
länger (M=37,2 Tage) als in der KG (M=27,9 Tage;
p<0,001).

Schlussfolgerung Die Ähnlichkeit der beiden Gruppen erlaubt einen
Vergleich und somit die Untersuchung der Auswirkungen von StäB auf
längerfristige Outcomes.
Human Papillomavirus 16 Lineage D is Associated with High Risk of Cervical Cancer in the Brazilian Northeast Region
Authors: Martins Luís Felipe Leite , Moreira Miguel Ângelo Martins , Pinto Rodrigo Alves , Reis Neilane Bertoni dos , Felix Shayany Pinto , Vidal João Paulo Castello Branco , Torres Leuridan Cavalcante , Souza Ariani Impieri , Almeida Liz Maria de
Published: September 2023

Objective Similar to Human Papillomavirus (HPV) genotypes, different lineages of a genotype also have different carcinogenic capabilities. Studies have shown that specific genotype lineages of oncogenic HPV are associated with variable risks for the development of cervical intraepithelial neoplasia (CIN2/CIN3) and cervical cancer. The present study aimed to analyze the genetic diversity of the HPV16 genotype in women with CIN2/CIN3 and cervical cancer, from the northeast region of Brazil.

Methods A cross-sectional multicenter study was conducted in the northeast region of Brazil, from 2014 to 2016. This study included 196 cases of HPV16 variants (59 and 137 cases of CIN2/CIN3 and cervical cancer, respectively). The difference of proportion test was used to compare patients with CIN2/CIN3 and cervical cancer, based on the prevalent HPV16 lineage (p < 0.05).

Results According to the histopathological diagnosis, the percentage of lineage frequencies revealed a marginal difference in the prevalence of lineage A in CIN2/CIN3, compared with that in cervical cancer (p = 0.053). For lineage D, the proportion was higher in cancer cases (32.8%), than in CIN2/CIN3 cases (16.9%), with p = 0.023.

Conclusion HPV16 lineage A was the most frequent lineage in both CIN2/CIN3 and cervical cancer samples, while lineage D was predominant in cervical cancer, suggesting a possible association between HPV16 lineage D and cervical cancer.
Reproductive Planning and the Choice of Long-acting Reversible Contraceptive Primary to Health: A Cross-Sectional Study
Authors: Brufatto João Paulo Turri , Dias Thais Machado , D'abreu Natália Bortoletto , Rehder Patricia Moretti
Published: September 2023

Objective Evaluate the different perspectives that involve the choice of long-acting reversible contraceptives (LARCs), the issues related to this process and the consequences of deciding one method in the women's in the primary health care (PHC) center in Sousas, a district in Campinas, SP (Brazil).

Methods This is an analytical cross-sectional study, it was performed at the PHC in Sousas. Data were collected through the analysis of medical records and interviews with women who live in Sousas and had the insertion of the copper intrauterine device (IUD) (D) from April 2021 to April 2022 or the etonogestrel implant (I) from May to December 2022. The study was approved by the Research Ethics Committee of the Medical Science School at the State University of Campinas (UNICAMP).

Results Reason for choosing this LARC: medical (D: 52%; I: 100%), easy adhesion (D: 71%; I: 67%), effectiveness (D: 55%; I: 100%). Indication by health professionals (D: 65%; I: 100%). And improvement of clinical characteristics: mood (D: 77%; I: 67%), body mass index (BMI; D: 52%; I: 33%), and libido (D: 84%; I: 67%).

Conclusion It is suggested that women tend to decide between LARCs when guided by their doctor or PHC health professionals, and they select LARCs because of the ease of use and low failure rates. Therefore, this study highlights how LARCs can positively interfere in the aspects that pervade contraception, such as BMI, libido, and mood.
Bioadhesive sticks to cartilage for improved repair
Authors: Patrick Chris
Published: September 2023

GelMA-glycol chitosan hydrogels hold the potential to regenerate injured cartilage.
Ultrasound-based surface sampling in immersion for mass spectrometry
Authors: Sillanpää Tom , Hyvönen Jere , Mäkinen Joni , Holmström Axi , Pudas Topi , Lassila Petri , Lepistö Riikka , Kuronen Antti , Kotiaho Tapio , Hæggström Edward , Salmi Ari
Published: September 2023

We present a surface sampling method for the chemical analysis of liquid-immersed solid samples. Liquid immersion allows samples to be kept in a hydrated state. We employed cavitation generated by high-intensity focused ultrasound for localized material removal. The appropriate transducer–sample distance was determined using the actuating ultrasound transducer prior to sampling, allowing sonication in focus despite surface height variation. We demonstrate the proposed surface sampling method on water-submerged glass cover slides painted with permanent markers, achieving sampling with tunable spot size down to 500 μm. The removed and collected material was transferred for chemical analysis by electrospray ionization mass spectrometry, which showed mass peaks characteristic to the permanent markers.
Non-volatile resistive switching behavior and time series analysis of Ag/PVA-graphene oxide/Ag device
Authors: Yadav Mahesh Kumar , Kundale Somnath S. , Sutar Santosh S. , Dongale Tukaram D. , Kumar Pradip , Panwar Neeraj
Published: September 2023

Non-volatile memory devices have been getting significant attention from researchers worldwide in recent years due to their application in resistive random access memory and neuromorphic computing. Here, we have fabricated polyvinyl alcohol-graphene oxide (PVA-GO) composite as an active material for the resistive switching with different concentrations of GO (0.0, 0.1, 0.2, 0.3, 0.4, and 0.5 wt. % GO solution) dispersed in 5 wt. % PVA matrix in a 2:1 volume ratio. We demonstrate the non-volatile forming free resistive switching properties of Ag/PVA-GO/Ag devices. Structural properties of PVA-GO composites are established from the x-ray diffraction pattern, which indicates the complete dispersion of GO inside the PVA matrix. The Ag/PVA-GO-0.1 wt. %/Ag device shows better bipolar resistive switching at VSET ∼ 0.4 V and VRESET at ∼−0.8 V. This device indicates well-resolved two distinct states at a read voltage of 0.1 V in endurance and retention measurements. The fabricated device switches successfully tested for 2.5 × 103 cycles and retains its state for 3.36 × 103 s without any observable degradation. Furthermore, the non-volatile retention property was modeled using time series analysis. For this, Holt–Winter's exponential smoothing technique was utilized. Additionally, the charge–flux linkage characteristic shows the double-valued function, and time domain–charge and time domain–flux show asymmetric behaviors. The electrical conduction mechanism exhibits ohmic behavior in the entire region of the low resistance state and the lower voltage region of the high resistance state. In the high-voltage region of the high resistance state, the space charge-limited conduction mechanism is observed. The resistive switching behavior is explained with the help of an appropriate model.