bluuebunny/crossref_metadata_2025 huggingface dataset:
Study On The Outcome Of Endoscopic Tympanoplasty Versus The
Conventional Method.
Authors: Thantry Deepalakshmi
Published: February 2023

BACKGROUND :
Endoscopic tympanoplasty is an minimally invasive surgery for the repair of tympanic membrane with complete graft survival and hearing outcomes to the conventional microscopic surgery.
This study was aimed to evaluate the success rate of endoscopic trans-canal closure of tympanic membrane perforation compared to the conventional post auricular approach using temporalis fascia and tragal cartilage as a graft.
METHODS:
Our study consisted of 50 patientswith chronic otitis media,with dry ear for last 2 months and all patients were between 18-50yrs of age.All selected patients were subjected to pre operative oto endoscopicand audiological assessment and underwent endoscopic trans canal tympanoplasty using temporalis fascia in some and tragal cartilage in some.
RESULTS:
Trans canal endoscopic surgery resulted in the successful healing of 97% whereas in conventional method successful healing was only up-to 92%. The average hearing gain was also significantly improved in endoscopic surgery compared to that of conventional method.
When the operative time was considered the mean time in endoscopic method was lesser.
All patients were followed up for a period of 3 months.
CONCLUSION:
Comparisons between these 2 groups focused on the surgical outcomes and restoration of hearing, including the duration of surgery. All patients were followed up for a period of 3 months.
Using this method not only improves the cosmetic outcome but also reduces the post operative morbidity with shorter operative time.
KEYWORDS: Endoscopic Tympanoplasty, Conventional Tympanoplasty, Tympanoplasty
Glycemic Control Variations In Covid-19 Associated Mucormycosis”
Authors: Raj S Pruthvi
Published: February 2023

Background: Mucormycosis is opportunistic invasive fungal infection characterised by angioivasion, thrombosis and necrosis of the tissues. Diabetes mellitus being the commonest immunocompromised state predisposing to mucormycosis in India, a study about glycemic control in CAM (covid-19 associated mucormycosis) patients and the severity of mucormycosis was necessary so as to reduce the morbidity and mortality in CAM patients.
Methods: A retrospective descriptive study was conducted between May 2021 and July 2021 at Bowring & Lady Curzon hospital. 315 patients with post-covid ROCM (rhino-orbito-cerebral mucormycosis) were included in the study. Glycemic control of the patients was monitored with FBS, PPBS, HBA1C values.The extent and severity of CAM was studied in patients with good and poor glycemic control..
Results: 243 (77.14%) patients were male and 72 (22.86%) were female. 296 (93.97% )patients had prior history of diabetes mellitus and 19 (6.03%) patients had newly detected diabetes mellitus. 275(87.30%) patients had poor glycemic control. 17 (6.18%) patients out of 275 presented with diabetic ketoacidosis (DKA). 40 (12.70%) patients had good glycemic control.
Conclusions: Diabetes mellitus has emerged as important risk factor associated with development of mucormycosis. In covid-19, poorly controlled diabetes, steroid induced hyperglycemia, covid induced insulin resistance act as fertile land for the development of mucormycosis. Hence monitoring glycemic status, judicious use of steroids, control of sugars may help in reducing the severity or occurance of mucormycosis.
Keywords: Mucormycosis, Diabetes mellitus, Covid-19 associated mucormycosis, Hyperglycemia.
Distributive Profiles Associated with Domestic Versus International Specialization in Global Value Chains
Authors:   * Goldsmiths, University of London, (a.wirkierman@gold.ac.uk)., Wirkierman Ariel Luis
Published: February 2023

The present paper sets out trends in the functional income distribution implied by countries’ integration in Global Value Chains (GVCs), taking account also of interregional interactions (South-South and North-South). Through the application of an innovative input-output methodology, it quantifies inter-country differences in functional income distribution by means of a novel indicator to estimate the distributive profile associated with domestic vis-à-vis international specialization. The focus is on trade flows, and the analysis carried out allows us to single out the distributive implications of alternative regional integration projects, in view of a more inclusive multilateral trade system.
Instrukcja sejmiku województwa kijowskiego na sejm 1646 r.
Authors: Goszczyński Artur
Published: February 2023

The instruction of the local diet of the Kyiv Province for the Sejm of 1646

By issuing the proclamation of 25 July 1646 Władysław IV called Sejm to convene on 25 October. Among the points raised by the royal legation, of top priority was the one concerning possible danger coming from the Turks and the Tatars. The royal court proposed a debate to gain support for the royal plans of a war with the Ottoman Porte and the Crimean Khanate. The plans forced an alliance with Russia and subsequent border review process, which resulted in Poland losing some of its territory. The Polish nobility did not support the king’s military plans. The attitude of the nobility affected the sejmiks, which jointly objected to the military plans in question. During numerous sessions delegates criticised other elements of the king’s policy as well.
The location of the Kyiv Province (south-eastern Poland) exposed it to a possible hostile attack. This is why it is worth examining the attitude of the Zhytomyr sejmik towards the royal policy. During this sejmik the nobility decided to stop payments for Tatars but, at the same time opposed the war with the sultan. Members of the Zhytomyr sejmik demanded access to the proceedings of the Senate to reveal those behind the king’s policy and the presence of foreigners at the royal court. The instructions also highlight law-abidingness as well as some private affairs, like the dispute concerning the order of precedence of the delegates of the Ruthenian province, or the demand for a remedy for the ousting of Zhytomyr delegates from the Sejm during the previous session.
„Rosja powstaje z kolan” — uwagi o polityce historycznej kremlowskiej elity
Authors: Grala Hieronim
Published: February 2023

“Russia rises from its knees” (remarks on the historical policy of the Kremlin elite)

The author focuses in his reflections on the historical policy of the Russian Federation’s leadership. Activities in this area, evident since the early days of Putin’s rule, became particularly intense after Putin assumed the presidency again (2012), resulting in the establishment of a number of “social” institutions seeking to promote the official vision of history, in an attempt to interfere with school and university curricula, a campaign against “falsifiers of history” and repressive measures against organisations promoting a different interpretation of the country’s history (e.g. Memorial). Leading representatives of the Russian establishment became actively involved in creating the official vision of the past: in addition to the arbitrary Putin, parliament speakers, government ministers and even the heads of the atomic and intelligence agencies were keen to speak on historical issues as well. Prominence in this campaign was given to the propaganda of the idea of a “Russian world” (Russkiy mir), referring to the dogma of a “triune Russian nation” (including the Belarusians and the Ukrainians), actively supported by the Moscow Patriarchate, the appeal of which was strongly compromised only by the annexation of Crimea.
In the article the author analyses Putin’s main historical statements, with a particular focus on his 2019–2022 speeches, characterised by undisguised resentment towards the West (including Poland) and hostility towards Ukraine. According to the author, from the historical point of view, Putin’s arguments are a mixture of contents taken from the sinister traditions of nineteenth-century Great Russian chauvinism, denying the Ukrainians the right to a national consciousness and language, and the views — fashionable in recent years among the Russian elite — whereby the national and state status of Ukraine is as young as it is artificial, as if it were an invention in the ideological sense of the last decades of the nineteenth century, and in the political sense — an artificial construct of the communist era, owing its existence solely to the leadership of the USSR. An analysis of the main publications and speeches of the Russian president clearly demonstrates the modest level of his own knowledge and the poor qualifications of his intellectual base.
According to the author, history in the service of Putin’s propaganda has been reduced to a political instrument to be used on the tactical level, in the relatively short term, which corresponds well to the Kremlin elite’s perception of politics more as an ad hoc operational game than a subject of strategic planning.
SIMULATING THE DYNAMICS OF A PARTICLE IN A QUANTUM MECHANICAL OSCILLATOR: A MULTIDIMENSIONAL WAVE FUNCTION APPROACH
Authors: Mohammed Hashim Albashir  , Hashim Gad Elseed  , Hajhamed Diab Aljaly  , Naga Abdalaziz
Published: February 2023

This research paper presents a simulation of a particle in a quantum mechanical oscillator, modeled as a multidimensional wave function. The simulation was created by solving the time-dependent Schrodinger equation, which was discretized in both the spatial and time domains, and then approximated using a finite difference method.
The objective of this research was to gain a deeper understanding of the behavior of a particle in a quantum mechanical oscillator and to provide visualizations and calculations of relevant physical observables. Initial conditions for the wave function, such as a Gaussian wave packet, were chosen and parameters for the simulation, such as the spatial step size and total simulation time, were set.
The results of the simulation showed the evolution of the wave function over time, providing a clear picture of the particles behavior within the potential well of the oscillator. Additionally, physical observables, such as the average position, average kinetic energy, and average potential energy, were calculated and used to validate the simulation and the predictions of quantum mechanics.
In conclusion, this research provides a comprehensive understanding of the behavior of a particle in a quantum mechanical oscillator and highlights the importance of simulations in advancing our knowledge of quantum mechanics. The results of this research can contribute to various fields, such as quantum computation and quantum control, and have the potential to drive further breakthroughs in these fields.
KEYWORDS: Quantum mechanical oscillator, particle behavior, multidimensional wave function, Schrödinger equation, finite difference method, physical observables, simulation, quantum mechanics, quantum computation, quantum control.
REGULARITIES OF THE IMPLEMENTATION OF ANTIMONOPOLY POLICY IN THE SYSTEM OF STATE MANAGEMENT
Authors:   Tambov State University named after G. R. Derzhavin, Tambov, Russia, Gukasov David S.
Published: February 2023

The relevance of the study is determined by the need to identify patterns in the implementation of antimonopoly policy in the system for ensuring the development of socio-economic systems. The purpose of the study is to form strategic directions for the implementation of antimonopoly policy, taking into account the nature of the impact on it of external and internal determinants. The objectives of this study include identifying the content of the nature of the impact of internal factors of antimonopoly regulation, determining the patterns of transformation of the external environment for the implementation of antimonopoly policy and the formation of directions for antimonopoly regulation in modern Russian conditions. The research methodology is based on a systematic approach to the study of patterns of development of socio-economic systems. Results: the results of the study are presented, based on the assumption that the development and effectiveness of the implementation of antimonopoly policy in modern conditions is determined by a combination of both internal factors that determine the nature of its impact on the socio-economic system, and external factors that are specific to the economic system of Russia and are global. character determined by the general laws of development of economic systems. When analyzing the external determinants of the effectiveness of the implementation of the antimonopoly policy, the author determined that the current stage of management in Russia is characterized, on the one hand, by the rapid growth of assets and activities of the digital sector. On the other hand, the transformation of international relations. Conclusion. The key internal determinant is the cyclic nature of the development and implementation of antimonopoly policy, determined by the completeness of the stages of implementation of the strategic directions of antimonopoly regulation. Based on the results of the study and the identified patterns, strategic directions for adjusting the mechanism of antimonopoly regulation and a set of tools and measures of an institutional, organizational, and information technology nature are proposed.
FORESIGHT FOR THE DEVELOPMENT OF THE RUSSIAN FEDERATION’S CHEMICAL COMPLEX: PROSPECTS UNTIL 2035
Authors:   Mendeleev Russian University of Chemical Technology, Moscow, Russia, Savinkov Sergey V. ,   Plekhanov Russian University of Economics, Moscow, Russia, Kiselev Vladimir M. ,   Plekhanov Russian University of Economics, Moscow, Russia, Loshkov Boris D. ,   Plekhanov Russian University of Economics, Moscow, Russia
Published: February 2023

The authors, based on previously made forecasts, consider the dynamics of the development of the scientific and practical level of the production systems of the Russian chemical industry on the world market after half the implementation period of the chemical industry development program in 2022. It is shown that, taking into account the positive dynamics of most integral indicators, the development forecast, based on the actual values achieved by the end of 2021, the estimated values of indicators for 2022 and the current situation in the world and Russian economy, assumes a gradual increase in exports of domestic chemical products, the implementation of major investments in the modernization of the industry until 2030, followed by an increase in gross the added value of the chemical complex. The share of imports of chemical products will grow slightly, while the existing trend towards the innovative nature of production and the creation of qualified human resources will continue, which will lead to a twofold effectiveness of research and development work with a corresponding increase in the share of organizations investing in technological innovations.
IMPROVING INFORMATION SUPPORT OF ECONOMIC ACTIVITIES OF SMALL AND MEDIUM-SIZED BUSINESSES AND SELF-EMPLOYED PERSONS
Authors:   Institute of Public Administration and Management of the Russian Presidential Academy of National Economy and Public Administration, Moscow, Russia, Chvanov Robert A. , Kuznetsova Olga S. ,   Institute of Public Administration and Management of the Russian Presidential Academy of National Economy and Public Administration, Moscow, Russia, Karpenko Yuliya A. ,   Institute of Public Administration and Management of the Russian Presidential Academy of National Economy and Public Administration, Moscow, Russia
Published: February 2023

The article discusses information resources containing information about small and medium-sized businesses. The authors analyzed statistical information about small and medium-sized businesses, considered approaches to its formation, as a result, formulated problematic issues and proposed ways to solve them.
ASSESSMENT OF INVESTMENT ATTRACTIVENESS OF REGIONAL TERRITORIES
Authors:   Irkutsk National Research Technical University, Irkutsk, Russia, Beregova Galina M. , Xueciao Fan ,   Irkutsk National Research Technical University, Irkutsk, Russia
Published: February 2023

The article summarizes the main factors of regional investment attractiveness and presents the weight value of each of them. They are characterized by key and qualitative indicators used to assess the level of investment attractiveness of territories, taking into account the risk component. The author's algorithm for assessing the investment attractiveness of territories has been developed, which allows, based on the calculation of dynamics coefficients, to classify territories according to the level of investment potential development, taking into account the corresponding risks. The approbation of the algorithm on the example of the regions of the Siberian Federal District is presented. This made it possible to classify the territories by the level of investment attractiveness into three groups. They show the levels of investment attractiveness of regional territories.
THE FEDERAL BUDGET OF 2023–2025 AS THE BASIS FOR THE TRANSFORMATION OF THE RUSSIAN ECONOMY
Authors:   Institute of Public Administration and Management of the Russian Presidential Academy of National Economy and Public Administration, Moscow, Russia, Pronina Lyudmila I.
Published: February 2023

The article reveals the features of the federal budget for 2023-2025 based on the analysis of internal and external factors affecting the Russian economy (pandemic, sanctions, special military operation). The urgency of preserving the market economy, not the mobilization economy and its transformation, even in conditions of prolonged use of special measures abroad due to a military operation, is substantiated. The reasons and results of the execution of the federal budget in 2022, the parameters of the forecast of socio-economic development of Russia in 2023-2025 are considered. The macroeconomic indicators of the federal budget for this period are analyzed. Attention is focused on national projects and state programs, financial assistance to regions and improvement of inter-budgetary regulation.
IDENTIFICATION OF LICENSES FOR THE RIGHT TO USE SUBSOIL AS AN OBJECT OF ASSESSMENT
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russia, Konev Dmitry V.
Published: February 2023

The article considers the features of identifying licenses for the right to use subsoil as an object of evaluation. Approaches to the identification of licenses for the right to use subsoil as an object of assessment have been studied and systematized.
PURCHASES OF INSURANCE SERVICES FROM SMALL AND MEDIUM BUSINESSES AS A RISK FACTOR
Authors:   St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia, Makarenko Evgeny A. ,   St. Petersburg Polytechnic University of Peter the Great, St. Petersburg, Russia
Published: February 2023

The article considers the problems of purchasing insurance services from small and medium-sized enterprises (SMEs). The trends of reduction in the number of insurers in Russia (including representatives of SMEs) in 2016-2022 are analyzed. The types of licenses are considered, conclusions are drawn about the single presence of SME representatives in the segments of compulsory motor liability insurance (CTP), compulsory civil liability insurance of the owner of a dangerous object for causing harm as a result of an accident at a dangerous object (OSOPO) and life insurance or a limited number – in other types. The risks associated with the conclusion of insurance contracts with SME companies are analyzed in terms of causes, consequences and measures that can both reduce the risks of receiving substandard services and reduce the severity of negative consequences. Assumptions are made about further developments of the SME segment in the insurance industry
INSTRUMENTS OF STATE SUPPORT FOR SMALL AND MEDIUM-SIZED ENTERPRISES IN THE UNITED ARAB EMIRATES
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russia, Nefedov Denis A.
Published: February 2023

Small and medium-sized enterprises (SMEs) are one of the drivers of the development of the modern economy (contribution to GDP, the level of employment in enterprises, the share of small and medium-sized enterprises in the total number). In this regard, many countries around the world are adopting a number of programs aimed at stimulating the development of SMEs. One of the promising countries in terms of stimulating SMEs is the United Arab Emirates. On the basis of theoretical and methodological material, approaches to the definition of SMEs are compared. In addition, the practice of stimulating SMEs in the UAE is analyzed.
Investigating Distributed Leadership Practices in Pakistani Universities
Authors: Syeda Rabia Mushtaq  , Dr. Fakhra Aziz
Published: February 2023

The research study aimed to probe distributed leadership practices, the most and the least prevailed practices in public universities of Lahore. The study also aimed to find gender-based differences in prevalence of distributed. The study was conducted in a quantitative paradigm and a survey technique was used to collect data. The population was consisted of all general public universities located in Lahore (6). Three universities were selected through random strata sampling. Among them one was women and two were mixed general universities. Randomly 300 faculty members were selected to get the questionnaire filled. Distributed leadership questionnaire (Özkan and Çakır,2017) was adopted. SPSS version 20 was used to analyse the data through descriptive and Inferential statistics. It was found that distributed leadership was prevailed in public universities. In women university it was more prevailed than mixed universities. Further there was difference in prevalence of different dimensions of distributed leadership. In women university, practices related to sharing responsibilities and unity of purpose were comparatively more prevailed as compared to mixed universities where rest of three dimensions of distributed leadership were more prevailed. It was suggested that factors behind these differences should be explored through conducting researches in broader context including private sector universities also.
Сутність та значення публічних механізмів розвитку інноваційної екосистеми України
Authors: Зуєв М. І.
Published: February 2023

Розглянуто визначення термінів екосистема, інновації, національна інноваційна екосистема, механізмів публічного управління та наведено характеристики інноваційної екосистеми, структуру та частини механізмів публічного управління. Проаналізовано складники механізмів державного управління показують ключові чинники, що дають змогу ефективно працювати на користь суспільства. З'ясовано, що механізми державного управління реалізуються за допомогою її елементів – органів виконавчої влади і сукупності нормативно-правових норм, які затверджують організаційні структури органів виконавчої влади, а також правила реалізації їх функціональних повноважень. Зазначено, що інноваційна екосистема – це сукупність суб'єктів, проєктів та інших елементів інноваційної діяльності, що формують економічні та соціальні зв'язки, та, які взаємодіють на підставі встановлених правових норм, та, які використовують організаційно-інформаційні і фінансові інструменти та ресурси, а їх інноваційна діяльність спрямована на підтримку інноваційного розвитку, створення нових технологій, конкурентоспроможності продукції й розвиток інноваційної діяльності. Встановлено, що публічні механізми розвитку інноваційної екосистеми полягають у множині взаємопов'язаних елементів, які об'єднані та забезпечують практичну реалізацію публічного адміністрування зі створення інновацій, нових технологій, конкурентоспроможної продукції й розвитку інноваційної діяльності шляхом формування економічних і соціальних зв'язків, встановлення юридичних механізмів, організаційно-інформаційних і фінансових інструментів та ресурсів. Охарактеризовано цикл розвитку інновацій на прикладі Національного університету "Львівська політехніка". Визначено елементи, які задіяні у створенні нового інноваційного продукту від початкової фази після появи та обговорення самої ідеї, до моменту виходу на ринок виготовленого на підставі такої ідеї інноваційного продукту.
CiTO support for BioHackrXiv
Authors: Willighagen Egon , Ohta Tazro , Castro Leyla Jael , Prins Pjotr
Published: February 2023

In this paper we present the work executed on BioHackrXiv during the international ELIXIR BioHackathon in Barcelona, Spain, 2021.
Alkilorezorcynole ziarna zbóż — ich znaczenie w żywności i paszy
Authors: Boros Danuta
Published: February 2023

Alkilorezorcynole (AR), stanowią grupę lipidów fenolowych, których znaczne ilości znajdują się w całym ziarnie zbóż. Największą zawartością tych związków charakteryzuje się ziarno żyta (360–2180 mg/kg), mniejsze ilości są znajdowane w ziarnie pszenżyta (294–1145 mg/kg) i pszenicy (268-943 mg/kg), a znacznie mniejsze w ziarnie jęczmienia (32–152 mg/kg). Na ogół nie stwierdza się ich obecności w ziarnie owsa. W latach sześćdziesiątych i siedemdziesiątych ubiegłego stulecia z uwagi na stwierdzoną wysoką zawartość AR w życie oraz niską wartość paszową tego zboża przypisano AR rolę składnika antyżywieniowego. Intensywne prace wielu zespołów wykazały w późniejszych latach, że czynnikiem odpowiedzialnym za niską strawność i przyswajalność wszystkich składników pokarmowych w przewodzie pokarmowym zwierząt monogastrycznych, w szczególności związków energetycznych w dietach opartych na ziarnie żyta jest wysoka zawartość frakcji arabinoksylanów rozpuszczalnych w wodzie, odznaczająca się dużą wodochłonnością i wysoką lepkością w środowisku wodnym. W dzisiejszych czasach AR budzą ponownie duże zainteresowanie jako ważny składnik bioaktywny żywności i potencjalny biomarker spożycia produktów całoziarnowych. Z uwagi na różnice w składzie homologicznym AR pomiędzy pszenicą a żytem, rozważana jest możliwość użycia ich do identyfikacji rodzaju spożytego ziarna. Jako grupa związków fenolowych AR wykazują silne właściwości antyoksydacyjne, ale także antybakteryjne i antymutagenne.
Zastosowanie n-wymiarowej macierzy kropkowej do analizy zmienności genetycznej roślin
Authors: Kasperski Andrzej , Kasperska Renata
Published: February 2023

Celem pracy jest przedstawienie możliwości wykorzystania nowej metody do analizy zmienności genetycznej organizmów, w tym organizmów o znaczeniu przemysłowym. Zaproponowana metoda działa na dwóch poziomach — na poziomie porównań aminokwasów oraz na poziomie porównań ich kodonów, tj. na poziomie kodu genetycznego. W pracy przedstawiono analizę inhibitorów proteinaz z nasion dyniowatych oraz analizę cytochromu c wybranych roślin uprawnych. Ponadto, za pomocą nowej metody dwupoziomowej analizy zmienności genetycznej otrzymano wyniki, które wykorzystano do interpretacji drzew filogenetycznych zbudowanych dla analizowanych sekwencji.
Risk Hazard of Banking in Emerging Countries
Authors: Mawardi Wisnu , Mahfudz Mahfudz , Laksana Rio Dhani , Shaferi Intan
Published: February 2023

The development of Islamic banking has been examined. Many researchers have been dedicated to researching how this growth generates microeconomic consequences on financial institution efficiency. This paper embodies a comprehensive analysis of Basel II standard implementation impacts gap in hazards between Islamic and conventional banks in Asia countries (Indonesia, Malaysia, Singapore, Thailand, and Philippines, Brunei Darussalam). Basel II requirements make contributions to expand the distance in hazard between conventional banks and Islamic Banks at the rate of the latter. Four arguments may be supplied to provide an explanation for why Basel II requirements can contribute to making Islamic banks exceptionally riskier than conventional banks. the connection between Islamic banking and hazard is conditional on the regulatory framework. A mapping descriptive examination analyzing the international locations of every form of bank and the 12 months of implementation of Basel II regulation. This method was utilized in the Basel II implementation in a few of the Asia nations of our pattern for the duration of the length of examination from 2015 to 2020. The treatment group consists of banks in nations with an implementation of Basel II for the precise year with a substantial 10%; those findings also are located whilst one by one thinking about small banks and massive banks, therefore, assisting the view that the connection between Islamic Banking And Hazard is conditional to the regulatory framework.
funciones docentes: su enseñanza y aprendizaje en los grados en maestro
Authors: Belletich Olga , Wilhelmi Miguel R.
Published: February 2023

La experiencia docente universitaria en los Grados en Maestro demuestra que existen obstáculos didácticos para la enseñanza y aprendizaje de las competencias asociadas a las funciones y prácticas docentes requeridas en la escuela. El objetivo es describir una propuesta didáctica diseñada ex profeso que permite superar estos obstáculos. Se demuestra que las metodologías activas que conceden mayor autonomía en el estudio y que fomentan la indagación son más propicias para el desarrollo de estos aprendizajes. El marco teórico se fundamenta en tres teorías educativas: Teoría de las situaciones didácticas; Teoría del aprendizaje por descubrimiento y Teoría del liderazgo educativo.
realidad construida a través de la maqueta arquitectónica
Authors: Rodríguez Méndez Fco. Javier , García Gago Jesús Mª
Published: February 2023

La construcción de maquetas arquitectónicas como herramienta pedagógica aplicada en la etapa de bachillerato permite al estudiante comprender arquitectónicamente el edificio analizado, al mismo tiempo que aumenta su visión espacial, familiarizándose con el uso de planos de arquitectura. Además, el estudio histórico del edificio, en este caso, en el que ha desarrollado sus estudios en los últimos años, le inicia en el hábito de la investigación universitaria, implicándose desde el principio en conseguir los objetivos marcados, por lo que este tipo de proyectos puede considerarse una interesante experiencia de enseñanza-aprendizaje.
MONITORING STRESS-STRAIN STATE OF THE UNIQUE TRANSFORMED LONG-SPAN SHELL OF THE GAZPROM ARENA STADIUM AS A BASE FOR ITS SAFE OPERATION
Authors: FARFEL M. I. , VDOVENKO A. I.
Published: February 2023

Introduction. The main provisions for the development of a system for monitoring the stress-strain state (SSS) of the shell covering the Gazprom Arena stadium are described. This shell characterized by an elevated consequence level under Federal Law 384-FZ belongs to a CS-3 class as per GOST 27752 «Safety of structures in buildings and civil engineering works». According to these documents, a stress-strain state monitoring system should be installed in such a building, functioning for the entire life of the structure.

Aim. In this work, an SSS monitoring system was developed and installed in order to determine the parameters of the stress-strain state under continuous control of the unique shell operated at the Gazprom Arena stadium.

Materials and methods. The method of determining the parameters of the stress state, including the snow load over the stadium surface, as well as the strain state, was described. The parameters of the strain state were defined using an automated system installed for the first time in construction practice on a unique long-span shell. The process of installing and configuring an automated system of monitoring the strain state was described.

Results. A stress-strain state monitoring system was developed that allows continuous monitoring of the unique long-span transformable shell operated at the Gazprom Arena stadium in St. Petersburg. Examples of a graphical deformation scheme were obtained as a result of processing the parameters of the strain state.

Conclusions. The development of the most sophisticated stadium in the world having a transformable unique large-span shell and a football field resulted in a sports complex that meets FIFA’s strict requirements for arenas of the World Cup. The system of monitoring the stress-strain state allowed the semi-final and several group matches of the 2018 FIFA World Cup in Russia, as well as eight matches of the European Championship in 2021, to be successfully and safely held. The stadium was ready to host the Champions League Final. Scientific and technical support, including SSS monitoring, ensured the following: monitoring the stress level in the metal elements of a unique long-span shell; determining the movements of its elements; plotting a deformation scheme of the structure; preventing possible emergency situations that occurred and may further occur during the operation of the unique structure.
CHLORIDE CORROSION OF REINFORCING STEEL
Authors: ROZENTAL N. K. , CHEKHNII G. V.
Published: February 2023

Introduction. Many years of experience in examining corrosion conditions show the dangerous adverse effects of chloride media on reinforced concrete structures.

Although a large number of domestic and foreign publications have been devoted to the aggressive action of chloride salts on reinforcing steel, protection against chloride corrosion remains a relevant issue.

Aim. In this work, the state of this problem, along with the methods for determining the chloride content in concrete, was assessed in order to propose the means to increase its protective action in aggressive chloride media.

Materials and methods. This article discusses the following issues:

– maximum permissible chloride content in concrete;

– binding of chlorides by components in the matrix, the role of the mineral composition of cement;

– critical evaluation of methods for determining the chloride content in concrete;

– reduction of the diffusion permeability of chlorides in concrete as a method of corrosion protection.

Results. The article presents the data on moisture tests of reinforced concrete prepared using Portland cement having various contents of alite, belite, and tricalcium aluminate, as well as CaCl2 additive.

Indicated were the challenges of identifying aggressive free chlorides in the matrix. The need to develop a standard method for determining free chlorides in concrete was discussed. Until such a standard is developed, the chloride aggressiveness to steel in concrete can be assessed by the electrochemical method. It was shown that concretes of extremely low diffusion permeability obtained using advanced complex additives that reduce the water demand of concrete mixtures and change the charge of the matrix surface can be used as a protection measure against chloride corrosion.

Presented are the results of determining the potentials of steel in concrete by electrochemical method, chlorides in concrete by colorimetric method, and diffusion permeability of chlorides in concrete.

Conclusion. The corrosion activity of chlorides against reinforcing steel depends on a large number of factors, including the total chloride content and the amount of free, physically, and chemically bound chlorides.

Since chloride binding depends on a large number of technological factors, it is recommended to perform electrochemical tests of reinforcing steel in concrete as per GOST 31383 to assess the hazard level of chlorides introduced into concrete with initial materials; a decision on the protective measures for reinforcing steel in chloride environments should be made on the basis of the obtained results.
PENELITIAN TINDAKAN KELAS
Authors: Syaifudin Syaifudin
Published: February 2023

ABSTRACT

Ideally, an Arabic teacher must have absolute empathy for the competencies that have been determined by the National Education Standards, including personal, professional, educational, and social competencies. However, after the evaluation, it is easy to master the four competencies. There are many deficiencies in the teaching-learning process, especially in the less than optimal student learning outcomes, the quality of teaching that does not answer the needs of students, and several other problems. Various types of research are offered for the study of these problems, one of which is classroom action research which is later abbreviated as PTK. PTK instructions to improve students' Arabic learning outcomes, and the quality or quality of teaching an Arabic teacher. Thus, it is necessary to have a mature concept before carrying out the PTK. To collect this concept, the authors conducted a literature study by collecting some literature in the form of journals, books, previous research, and other supporting documents. From the results of the search conducted, it was found that the concept of classroom action used to study and study linguistic fields, especially Arabic, started from a study of the urgency of the research itself which departed from efforts to improve the quality of teaching which had an impact on improving student learning outcomes. Therefore, in implementing PTK, a researcher must choose one of the models offered by the experts by going through two cycles, and of course through several stages or procedures including planning (planning), implementing (action), observation (observation), and reflection (reflection). If the procedure is passed properly, the desired results from the PTK will be realized so that it will have an impact on increasing the quality of teacher teaching and student learning outcomes.
Update on the Relationship Between the SLC4A7 variant rs4973768 and Breast Cancer risk: a systematic review and meta-analysis
Authors:   The First Affiliated Hospital of Xi'an Jiaotong University, ZHOU YUHUI , MA XIAOXIA , SUN JINGLAN
Published: February 2023

Review question / Objective: The aim of this meta-analysis was to get an updated opinion, which was about the role of the single nucleotide polymorphism (SNP) rs4973768 in the SLC4A7 gene played in the incident of breast cancer. Eligibility criteria: The included criteria were formulated for this meta-analysis as following:(1) studies with both case and control groups;(2) studies assessing the relation between the SLC4A7 rs4973768 polymorphism and sensibility to breast cancer;(3) studies with sufficient information such as genotype frequency for results of odds ratios (ORs) and 95% confidence intervals (95% CIs); and (4) full-text articles of studies with human subjects. Studies meeting any one of the criteria were determined unqualified for this meta-analysis as following:(1) conference abstracts, comments, reviews, case reports, or editorials;(2) inadequate data for OR calculation;(3) no control group; and (4) animal studies.
A urbanização das áreas de preservação permanente de rios e seus reflexos jurídicos
Authors: Ladwig Nilzo , Andrade Del Castanbel Luciana
Published: February 2023

O processo de urbanização de Santa Catarina é o reflexo do que aconteceu no Brasil, foi acelerado fazendo que as cidades se desenvolvessem sem considerar o contexto da paisagem. As margens de rios foram ocupadas e edificadas deixando como herança impactos ambientais nas áreas de preser- vação permanente (APP). Assim, as construções acabaram não obedecendo ao afastamento neces- sário para a preservação do próprio rio. Nesse contexto, a pesquisa objetivou analisar o conflito das construções irregulares em área de APP de rios localizados em área urbanizada caso do Rio Mam- pituba no município de Passo de Torres, estado de Santa Catarina. Para tanto, descreveu-se o pro- cesso de urbanização no Brasil com ênfase na ocupação das áreas próximas das margens dos rios, desde o início da civilização humana, a fim de ser constatada a origem histórica do problema. Dis- cutiu-se a responsabilidade estatal, como principal causa incentivadora da construção irregular nas APPs. A pesquisa qualitativa e descritiva adotou a revisão bibliográfica sistematizada e a digressão legislativa ambiental brasileira, assim foi possível obter como resultado a análise dos conflitos quanto à aplicabilidade da norma perante às edificações irregulares em área de APP. Por outro lado, verificou-se alguns meios para prevenir, atenuar e, quando necessário, combater a problemática da construção irregular em área de preservação permanente de rio urbanizado.
Glomerulonephritis pattern based on renal biopsy at the tertiary center of King Abdulaziz University Hospital, Saudi Arabia
Authors: Albeladi Fatma
Published: February 2023

Aim: To investigate the glomerulonephritis pattern based on renal biopsies obtained from patients who attended King Abdulaziz University (KAU) hospital.
Methods: This retrospective analysis was conducted at King Abdulaziz University (KAU) hospital. Data were retrieved from the pathology registry of renal biopsies performed at KAU hospital between 2010-2018. Demographics, background data, and the result of the biopsy Data were entered and analyzed using SPSS 23. Continuous data were expressed using mean ± SD. A P-value of <0.05 (two-tailed) was determined to establish statistical significance. A Chi-square test was utilized to evaluate the association between categorical variables. In addition, a one-way ANOVA test was utilized when appropriate.
Results: Among the 55 cases Focal segmental glomerulosclerosis (FSGS) is the most common cause of primary glomerulonephritis (56%). Whereas lupus nephritis was the most prevalent pathology in the case of secondary glomerulonephritis (60%) with a female predominance, followed by anti-neutrophilic cytoplasmic autoantibody vasculitis (16.7%) and diabetic nephropathy (13.3%). While IgA nephropathy represents (12%) of all the cases.
Conclusion: Lupus nephritis is the prevalent cause of ESRD based on histopathology results. Lupus nephritis was the commonest cause of glomerulonephritis diseases with a female predominance. It is recommended that a nationwide multicenter study should be conducted to determine the current status, and ensure early intervention which will guide better planning and management of glomerulonephritis. This report should be considered an as urgent call to establish a national registry for glomerulonephritis renal biopsies.
“Playing detective” in a case of paraneoplastic polymyositis
Authors:   “Sf. Maria“ Clinical Hospital, Bucharest, Romania, Juganaru Elena , Cobilinschi Claudia ,   “Sf. Maria“ Clinical Hospital, Bucharest, Romania,   “Carol Davila“ University of Medicine and Pharmacy, Bucharest, Romania, Constantinescu Cosmin ,   “Sf. Maria“ Clinical Hospital, Bucharest, Romania,   “Carol Davila“ University of Medicine and Pharmacy, Bucharest, Romania, Hoara Petre ,   “Sf. Maria“ Clinical Hospital, Bucharest, Romania,   “Carol Davila“ University of Medicine and Pharmacy, Bucharest, Romania, Iosif Cristina ,   “Sf. Maria“ Clinical Hospital, Bucharest, Romania, Mehic Florentina ,   Bucharest Emergency Clinical Hospital, Bucharest, Romania, Balanescu Andra ,   “Sf. Maria“ Clinical Hospital, Bucharest, Romania,   “Carol Davila“ University of Medicine and Pharmacy, Bucharest, Romania
Published: February 2023

Adult-onset polymyositis (PM) belongs to the idiopathic inflammatory myopathy (IIM) group and manifests with proximal muscle weakness, elevated muscle enzymes and positive myositis- specific antibodies. The subset of autoantibodies can indicate a higher risk for cancer association. An 82-year-old diabetic patient, with multiple cardio-vascular comorbidities, was hospitalized for muscle weakness of the upper girdle, dysphagia and dysphonia, accompanied by elevated serum muscle enzymes. Muscle biopsy showed an inflammatory infiltrate while immunological assays found positive ANA and anti-NXP2 antibodies. The diagnosis of PM was established, thus a screening for underlying neoplasia was required. Upper endoscopy visualized an area of ectopic mucosa in the esophagogastric junction and the biopsy confirmed a squamous cell carcinoma in situ. Patient had favorable muscle outcome under methylprednisolone pulse therapy. It is worth noting that polymyositis is more rarely associated with cancers as compared to dermatomyositis (DM). In conclusion, the type of antibodies identified in myositis can represent an alarm signal for oncologic screening, making possible an early diagnosis and efficient treatment of a hidden tumor.
Hubble Space Telescope Transmission Spectroscopy for the Temperate Sub-Neptune TOI-270 d: A Possible Hydrogen-rich Atmosphere Containing Water Vapor
Authors: Mikal-Evans Thomas , Madhusudhan Nikku , Dittmann Jason , Günther Maximilian N. , Welbanks Luis , Van Eylen Vincent , Crossfield Ian J. M. , Daylan Tansu , Kreidberg Laura
Published: February 2023

TOI-270 d is a temperate sub-Neptune discovered by the Transiting Exoplanet Survey Satellite (TESS) around a bright (J = 9.1 mag) M3V host star. With an approximate radius of 2 R
⊕ and equilibrium temperature of 350 K, TOI-270 d is one of the most promising small exoplanets for atmospheric characterization using transit spectroscopy. Here we present a primary transit observation of TOI-270 d made with the Hubble Space Telescope Wide Field Camera 3 (WFC3) spectrograph across the 1.126–1.644 μm wavelength range, and a 95% credible upper limit of 8.2 × 10−14 erg s−1 cm−2 Å−1 arcsec−2 for the stellar Lyα emission obtained using the Space Telescope Imaging Spectrograph. The transmission spectrum derived from the TESS and WFC3 data provides evidence for molecular absorption by a hydrogen-rich atmosphere at 4σ significance relative to a featureless spectrum. The strongest evidence for any individual absorber is obtained for H2O, which is favored at 3σ significance. When retrieving on the WFC3 data alone and allowing for the possibility of a heterogeneous stellar brightness profile, the detection significance of H2O is reduced to 2.8σ. Further observations are therefore required to robustly determine the atmospheric composition of TOI-270 d and assess the impact of stellar heterogeneity. If confirmed, our findings would make TOI-270 d one of the smallest and coolest exoplanets to date with detected atmospheric spectral features.
Jets in a Gamma-Ray Burst during Its Prompt Emission: Evolution of the Lorentz Factor
Authors: Li Jing , Lin Da-Bin , Lu Rui-Jing , Wang Yun , Jiang Lu-Yao , Du Shen-Shi , Liang Wen-Qiang , Wang Xiang-Gao , Liang En-Wei
Published: February 2023

Knowledge about the Lorentz factor and its evolution of relativistic jets in gamma-ray bursts (GRBs) is crucial to understand their physics. An exact value of the bulk Lorentz factor can be estimated based on a high-energy spectral cutoff, which may appear in the GRBs’ prompt emission owing to the absorption of photon–photon pair production. In this work, we focus on an investigation of the bulk Lorentz factor evolution of jets in an individual burst. Based on Fermi observations, we search for bursts with multiple GRB pulses characterized by a high-energy spectral cutoff, and nine GRBs are obtained. Together with the estimation of the pulse duration and radiation spectrum, the Lorentz factor of jets corresponding to different pulses in an individual GRB is estimated. It is shown that the Lorentz factor of jets in an individual GRB fluctuates within a certain range and without a general trend in these nine GRBs. In addition, the Lorentz factors of the jets in GRBs 130821A, 160509A, and 160625B seem to increase with time. We also study the relations among L
iso, E
p,z, and Γ for the pulses in our sample, which are found to be consistent with those found in previous works.