bluuebunny/crossref_metadata_2025 huggingface dataset:
Measurements of the ambient dose equivalent rates around the Manyoni uranium deposit in Tanzania
Authors: Lolila Farida , Mazunga Mohamed
Published: June 2023

In this study, pre-mining ambient gamma dose equivalent rates at 1 m above the ground were measured using a Gamma-Scout portable radiation survey meter at two sites, A and B, around the Manyoni uranium deposit in Tanzania. Site A is expected to receive mine-dust particles with an aerodynamic diameter ≤ 10 µm (PM10) that have mean annual ground level concentrations (AGLC) ≥ 10% of the WHO air quality guideline limit of 20 µg/m3, and Site B is expected to receive PM10 with a mean AGLC ≥ 20 µg/m3. At Site A, the average of the ambient dose equivalent rates was 0.25 ± 0.03 µSv/h and ranged from 0.08 to 0.69 µSv/h. Similarly, at Site B, the average of the ambient dose equivalent rates was 0.23 ± 0.02 µSv/h and ranged from 0.12 to 0.34 µSv/h. The effect of the local geology on the measured dose rates was also presented. Since the ambient dose equivalent is an operational quantity for area monitoring, the results of this study will be very useful for comparing with the operational monitoring results of Sites A and B once uranium mining starts in Manyoni. This can help mine operators and regulatory agencies keep an eye on any rise in background radiation so they can take the necessary measures to safeguard locals and the environment from the harmful effects of ionising radiation.
ХІМІЧНЕ ЗВ’ЯЗУВАННЯ ДІОКСИДУ СІРКИ У БАРБОТАЖНОМУ РЕАКТОРІ З ВИКОРИСТАННЯМ СЕЧОВИНИ
Authors: Коломієць О.
Published: June 2023

Вступ. Інтеграція України у Європейський Союз вимагає суттєвого скорочення викидів забруднюючих речовин від промислових підприємств. Особливу увагу зосереджено на надходженні в атмосферу суспендованих твердих частинок, оксидів азоту, діоксиду вуглецю та діоксиду сірки від теплоенергетичних установок.Проблематика. Діоксид сірки є одним з основних забруднювачів навколишнього середовища. Його потрапляння в атмосферне повітря призводить до утворення кислотних дощів, які негативно впливають на людей, ґрунт, рослини та наземні споруди.Мета. Дослідити вплив початкового масового вмісту сечовини у водному розчині та його температури на ефективність процесу хімічного зв’язування діоксиду сірки.Матеріали й методи. Розглянуто низку статей, присвячених видаленню оксидів сірки з відхідних газів теплоенергетичних установок різними методами та технологіями з використанням сечовини. Дослідження проведено на математичній моделі хімічного реактора барботажного типу.Результати. Проведено серію числових експериментів на хімічному реакторі, де сечовина використовується якджерело амоніаку для зв’язування діоксиду сірки у розчині. Розрахунки дозволили визначити оптимальну температуру розчину при певному вмісті сечовини. При початковому вмісті сечовини 1% температура має сягати приблизно 57 °С, при 5% — 40 °С, а при 10% — 35 °С. За таких умов ефективність процесу хімічного зв’язування діоксиду сірки у розчині близька до 100%.Висновки. Аналіз результатів математичного моделювання процесів у хімічному реакторі виявив, що для пари параметрів «температура—вміст сечовини» існують значення, за яких ефективність процесу зв’язування сягає майже 100%. Для контролю ефективності доцільно використовувати водневий показник розчину на рівні 7 ± 0.5. Нижчі значення показника вказують на падіння ефективності процесу, а вищі — на зростання концентрації амоніаку у оброблених газах на виході з реактора.
EL SISTEMA NERVIOSO, UNA VÍCTIMA MÁS DEL SARS-COV-2
Authors: León-Sánchez Paulina , Luis Enoch
Published: June 2023

El COVID-19 es la enfermedad provocada por el SARS-CoV-2, el virus que desencadenó la instauración de medidas preventivas de confinamiento desde principios de 2020. En un inicio, se identificó a la proteína S del virus como la “llave” que, dada su gran afinidad por el receptor ACE2, promueve la entrada al cuerpo humano. ACE2 se encuentra expresado en diferentes tejidos, y por lo tanto, son más propensos a presentar alteraciones al estar expuestos al virus. En el encéfalo encontramos dos regiones con ACE2 altamente expresado: 1) el bulbo olfatorio, razón por la cual se sugiere que esto puede facilitar la entrada del virus hacia el SNC, e incluso se considera que explica la pérdida de olfato y 2) el tallo cerebral, que resulta de especial importancia porque el complejo Pre-Bötzinger se sitúa embebido en dicha estructura y regula el ritmo respiratorio mediante la coordinación de quimiorreceptores que sensan la saturación de O2 y CO2, lo que da paso a un decremento en el suministro de oxígeno. Además, parte de las alteraciones en el SNP se piensa que se generan a partir de la interacción del virus con los nociceptores dando paso a síntomas como dolor muscular y de cabeza.
Color Differentiation of Digital Risks in Teacher Education
Authors: Grunis Maxim L. , Kirilova Galiya I.
Published: June 2023

Introduction. At the present stage of education digital transformation, the urgent task is being addressed to train educators who are ready to meet the challenges and risks of a changing and unstable digital world. Digital risks differentiating and adjusting the course of digital learning for future educators constitute the study problem and goal. The paper draws attention to the issues of digital transformation in the educational system carried out under conditions of uncertainty, as well as ways and opportunities to adjust the course of digital learning, ensuring the readiness of future teachers for the changes that are coming in the near and distant future.
Materials and Methods. Leading research methods: system analysis of digital risks in teacher education, scenario modeling of network interactions and digital learning in basic risk situations, pedagogical experiment. The dynamic set of analytical and predictive judgments of future teachers about the possibilities of overcoming risk situations constitute the experimental materials. In research, digital risks are differentiated by three definable parameters: subjective sense of danger, relative risk and probability of threat.
Results. The algorithmic model provides risk classification features and color codes. Their influence on the choice of safe behavior strategies in basic risk situations associated with networking and digital learning is described. The study reveals the authorʼs idea of risks color differentiation, which in this paper is illustrated by examples of teachers’ professional activities in networking and digital learning situations. The paper practical significance lies in pedagogical influences of algorithmic model approbation in risks situations of different danger levels: especially dangerous, moderate and underestimated risks in the dynamic digital space. It is concluded that actions in danger situations can be effectively regulated by light signals similar to a modified traffic light. Each signal can be matched with an individual scenario included a stereotypical behavior algorithms set that is assigned considering the real danger and subjective feeling on it, the basic scenario and prediction corresponding to it. The survey final measurements showed that the future teachers who passed the experimental training significantly decreased their subjective sense of danger.
Discussion and Conclusion. The pedagogical experiment reveals that the study of risk situations, pedagogical activity scenario modeling and orientation to color cues in typical risk situations reduce the teachers’ uncertainty sense and give positive shifts in teachers’ training.
The Rebirth of the Subject. Arendt and Badiou on the Human Being as Source of Change
Authors: Totschnig Wolfhart
Published: June 2023

In the second half of the 20th century, the traditional notion of the human subject as source of thought and action came under critique by Foucault, Althusser, and others. Foucault called this critique “the death of the subject”. In this paper, I seek to show that we can find, occurring at the same time, the development of a conception of the human being as source of thought and action that withstands this “death”, namely Arendt’s theory of action and Badiou’s notion of subject. What unites these two thinkers is that they conceive the subject as plural (that is, composed of several individuals) and as constituted by a principle (that is, unified by a guiding idea).
BARRENA, SARA; NUBIOLA, JAIME, Los viajes europeos de Charles S. Peirce, 1870-1883, EUNSA, Pamplona, 2022, 714 pp. 68 ilustraciones. Índices bibliográfico y onomástico.
Authors: Zalamea Fernando
Published: June 2023

Book Review
SELLÉS, JUAN FERNANDO, Los actuales métodos filosóficos: Pragmatismo, Fenomenología, Filosofía analítica, Hermenéutica. Síntesis y revisión desde L. Polo, Sindéresis, Madrid, 2022, 991 pp.
Authors: Ormazabal-Echeverría Javier
Published: June 2023

Book Review
Examinatıon Of Child-Friendly Restaurants on The Scale of Child Needs
Authors: TAVŞAN Filiz , BAHAR Zeynep
Published: June 2023

A child is an individual who is constantly developing and rapidly developing physically, psychologically and cognitively. As a result of meeting the needs of the child correctly, spaces can become meaningful for children. Thanks to the answers given by these spaces to children, the child can turn into a more free, self-confident and more creative individual in the space. It has been observed that there are not many child-friendly restaurants in our country compared to abroad. The preference of child-friendly restaurants abroad is increasing, as they offer activities that will contribute to both families' spending quality time and the development of children. In the study, it is aimed to examine how child-friendly restaurants are designed for children's needs and to examine how positive aspects can be gained in the development of the child in a place where children's needs are met. In this context, the study was designed in 6 steps. For the first time, child-friendly restaurants abroad, which were made in the last 10 years, were examined in the literature. And a total of 63 child-friendly restaurants were scanned and a total of “13” child-friendly restaurant structures meeting the criteria determined within the scope of the criterion sample used in the study were selected as the sample group. Selected restaurants were examined under the titles of physiological, psychological, cognitive, safety and aesthetic-perception needs of children. In the examined child-friendly restaurants, it was observed that the space designs were shaped in line with these needs of children.
Multilayer amorphous-crystalline high-entropy metal films
Authors: Ivanov Yu. F. , Prokopenko N. A. , Petrikova E. A. , Shugurov V. V. , Teresov A. D.
Published: June 2023

High-entropy alloys (HEA) are multi-element materials and contain at least five elements of similar concentration. HEA are, as a rule, single- phase thermodynamically stable substitutional solid solutions, mainly based on a body-centered cubic and face-centered cubic crystal lattice. Solid solution stabilization during the crystallization of a high-entropy alloy is provided by the interaction of a number of factors, namely, a high mixing entropy and low diffusion rate of components, and a low growth rate of crystallites from the melt. The purpose of this work was to obtain new knowledge about the structure and properties of high-entropy films synthesized on a metal substrate during deposition of a multi-element metal plasma in argon atmosphere. The plasma was formed as a result of independent plasma-assisted electric arc cathodes of the following metals: Ti, Al, Cu, Nb, Zr sputtering. As a result of the performed studies, the deposition mode was revealed, which allows the formation of films of various thicknesses of close to equiatomic composition. Transmission electron microscopy methods have established that the films are multilayer formations and have nanoscale amorphous-crystalline structure. Microhardness of the films significantly depends on the ratio of number of the forming elements and varies from 12 to 14 GPa, Young’s modulus – from 230 to 310 GPa. Crystallization of the films was carried out by irradiation with a pulsed electron beam. As a result of processing, a two-phase state is formed. The main phase is α-NbZrTiAl with a volume-centered cubic crystal lattice with a parameter of 0.32344 nm; the second phase of CuZr composition has a simple cubic lattice.
Data generation for digital simulators of metallurgical process operators
Authors: Lyakhovets M. V. , Makarov G. V. , Salamatin A. S.
Published: June 2023

The article deals with the formation of model implementations of time series of data (based on in-situ data) of controlled and uncontrolled impacts in simulator-training and digital modeling systems. Such simulators are becoming increasingly widespread due to the development of information and computer technologies, automated research systems, training systems, digital modeling technologies (APM modeling), as well as digital counterparts and advanced control systems. The formed implementations of impacts can characterize situations of normal process flow, emergency and pre-emergency states, or specific representative situations for training operators and technological personnel, software testing, research and tuning of algorithms and search for optimal control actions. Using examples from the metallurgical industry, the possibility of forming several interrelated impacts based on models of nonlinear dynamics and multivariate dynamic databases is shown. The Lorentz system describing the thermal convection of a fluid medium is considered as a model of the impacts formation. The model parameters for the low- and high-frequency components are determined separately, by processing in-situ data. Next, a training sample is formed using normalization and relay-exponential smoothing operations. The implementations of the actions are formed taking into account the mutual correlation of data based on models of chemical dynamics and are adjusted to the specified properties on a limited sample of a given volume with the required accuracy using a generator in the form of a closed dynamic system. The generator in form of a closed dynamic system is built on the basis of a multidimensional generating autoregressive model with adjustable coefficients. An example of the formation of data series on technological parameters of a blast furnace (the degree of wear of the furnace lining, temperature sensor readings and heat flux density) is shown.
Information-modeling system for prediction of the composition and properties of final slag in a blast furnace in real time
Authors: Pavlov A. V. , Spirin N. A. , Gurin I. A. , Lavrov V. V. , Beginyuk V. A. , Istomin A. S.
Published: June 2023

The article considers general characteristics of the algorithm for prediction of the composition of the final slag in a blast furnace in real time. This algorithm is based on fundamental knowledge on the processes occurring in the furnace and general laws of transient processes. It allows predicting at the current moment of time and for every hour ten hours ahead. A linearized model of the blast furnace process and a natural-mathematical approach are used. The model takes into account the dynamic characteristics of blast furnaces in various impact channels, which change and depend on the type of impact, operating parameters of the furnaces and properties of the melted raw material. This makes it possible to adjust the model to operating conditions of the object, to take into account changes in the composition and properties of iron ore and coke, blast and regime parameters of blast furnace smelting when modeling. The software of the information-modeling system for prediction of the composition and properties of the final slag in a blast furnace in real time was developed in the C# programming language based on the ASP.NET MVC framework using the .NET 5 cross-platform. The web application includes the following main functions: visualization of change APCS parameters and design parameters over time; slag mode diagnostics; modeling of transient processes of composition and properties of slag; prediction of slag composition and properties in real time and prediction history. The software architecture is described and its operation is illustrated. An assessment of the accuracy and reliability of the simulation results based on statistical indicators was carried out. The root-mean-square deviation of the predicted basicity of the CaO/SiO2 slag from that measured at taps is 0.023, the prediction reliability is 92 %, which indicates a satisfactory agreement between the predicted and actual values of the content of individual components in the slag. The information modeling system developed on the basis of the presented algorithm is integrated into the information system of the blast furnace shop of PJSC Magnitogorsk Iron and Steel Works.
Institutionalization of ESG-principles at the international level and in the Russian Federation, their impact on ferrous metallurgy enterprises. Part 1
Authors: Glushakova O. V. , Chernikova O. P.
Published: June 2023

The idea of ESG (Environmental – Social – Governance) is based on the concept of sustainable development and represents a fundamentally new approach to making business, characterized by the involvement of companies in solving environmental, social and management problems. Despite the fact that at the international level, the formation of an institutional framework in the field of ESG was initiated 74 years ago, in our country this process was launched only in 1996 with the adoption of the Concept for the Transition of the Russian Federation to Sustainable Development. Ratification by Russia of a number of international documents – the UN Framework Convention on Climate Change (1992), the Kyoto Protocol (1997), the Paris Agreement on Climate (2015) and the active promotion climate policy by most countries of the world aimed at preserving ozone in the atmosphere layer, necessitated the institutionalization of ESG principles at the national level. The activation of this process took place in 2020 and by mid-2021, the national framework in the field of ESG was created. Ferrous metallurgy is one of the basic sectors of the national economy. The discrepancy of ferrous metallurgy enterprises with the ESG criteria, as well as the high carbon and energy intensity of the products of this industry, in the future may cause the loss of sales markets and disruption of sustainable development. The stages of institutionalization of ESG principles at the international level and in the Russian Federation are considered. The necessity of reducing the carbon intensity and energy intensity of ferrous metallurgy products is substantiated in connection with the emerging global trend – the transition of most countries of the world to a low-carbon economy due to the gradual abandonment of coal energy and the gradual cessation of «inefficient» subsidizing of fossil fuels.
Understanding on the meaning of job stress of female hotel employees: Based on the theory of the conservation of resources
Authors:   The Tourism Sciences Society Of Korea, Koh Seung-Hee , Kim Hyoung-Gon
Published: June 2023

This study was to understand the characteristics and formation process of female hotel employees’ job stress. In-depth interviews were conducted with a total of 13 former and current female hotel employees, and the applied thematic analysis method was utilized to analyze the interview transcripts. Hobfoll's conservation of resources theory was used to analyze and interpret the results. The three themes derived from the analysis were 'conflicts with the bosses who have stereotypes about women', 'perceptions and experiences of the structured and rocentric organizational culture', and 'acceptance of the androcentric culture and loss of self-esteem’. From the results, it is inferable that female hotel employees’ job stress expands and intensifies as individual male bosses’ prejudice and stereotypes against women spread within and to the organization, eventually leading to the acceptance of androcentric culture and loss of self-esteem. The results show that female hotel employees’ job stress is mainly attributable to the androcentric cultural structure recognized and internalized through their interaction with male bosses. It was found that the cause of job stress was internalized as the sense of helplessness amplified through the process in which individuals' prejudice and stereotypes against women expand to the organizational level. This study not only contributes to improving the theoretical understanding of the meaning and cause of female hotel employees’ job stress but also provides practical implications for hotel human resource management.
A study on the differences in satisfaction of ecocultural consumption by the confirmation or disconfirmation of expectation-perceived performance: a case study of the National Nature Center
Authors:   The Tourism Sciences Society Of Korea, Kim Taelyn , Kang Youngeun , Park Sunju , Kahng Byungseon , Kim Namyoung
Published: June 2023

The experiences that meet the expectations are the important factors in shaping the satisfactions of cultural consumptions. This study analyzes the differences in satisfaction by the confirmation or disconfirmation of expectation-perceived performance of cultural consumptions. A total of 2,440 samples obtained through a survey of tourists of the national nature center at national parks are used for the T-test and regression analysis. As a result of statistical analysis on the visitors of the national nature centers, the degree of tourist satisfaction was highest in the order of positive disconfirmation group, confirmation group, and negative disconfirmation. The difference between the negative disconfirmation group and the confirmation group was more than four times greater than the difference between the confirmation and positive disconfirmation group. In addition, in terms of satisfaction influencing factors, in the case of the negative disconfirmation group who have the lowest satisfaction, only three factors had an effect: facility experience, program experience, and service experience. In terms of confirmation group, experience-related factors such as facility experience, service experience, tourist attraction experience, landscape experience, and program experience influenced satisfaction. In terms of positive disconfirmation group, most of the factors of experiences and expectations influenced satisfaction. It means that it is necessary to pay attention to facilities, programs, and service experiences first to reach the basic level of satisfaction, but in the end, it is required to maintain high quality in all aspects of expectations and experiences.
Analyzing preferred scenes in South Korean fishing villages with convolutional neural networks and image feature vector clustering
Authors:   The Tourism Sciences Society Of Korea, Lee Jaehyun , Jeong Chul
Published: June 2023

Local extinction is now a reality due to the designation of half of South Korea's counties and cities as extinction risk areas. The risk stage of population extinction is predicted to reach all local governments in the nation by 2047, so local governments are actively using the tourism sector to combat local extinction. This study used image feature vector clustering and convolution neural networks to analyse the preferred scene of a domestic fishing village. After crawling the domestic fishing village data made available by the Instagram hashtag (#) using Python 3.9.7, data analysis was carried out. The analysis led to the classification of Waemok Village into 4 clusters, White Yeoul Culture Village into 7, Banwol-Bakji Village into 11, and Abai Village into 4 clusters. This allowed for the understanding of the primary tourist attractions in each fishing village, as well as the determination of the kinds of travel-related information that visitors share on social media. According to this study, the convolution neural network is a complementary methodology that offers an alternative to existing content analysis in terms of the use of large amounts of data. It can be used as a source of fundamental information for marketing plans and effective decision-making in related fields like local government, travel, and the planning and development of tourism products.
ISOTOPIC COMPOSITION (δ13C) AND AUTHENTICITY OF COMERCIAL PULP, TROPICAL JUICES AND NECTARS OF MANGO
Authors: Figueira Ricardo , Imaizumi Vitor Massami , Andrade Thalia Lee Lopes de , Venturini Filho Waldemar Gastoni
Published: June 2023

The aim of this study was to quantify the carbon-13 of C3 photosynthetic cycle in commercial pulps, tropical juices and nectars of mango through the technique of stable isotopes of carbon to identify the beverages at odds with Brazilian law. The relative isotope enrichment of cane sugar, additives, laboratory-fabricated beverages and commercial beverages was measured in Isotopic Ratios Mass Spectrometer (IRMS). To estimate the error of the isotopic methodology sweetened tropical juices and nectars were produced in laboratory according to their Identity and Quality Standard (IQS) and also adulterated beverages with amount of pulp below of the established by Brazilian law. In these beverages, the theoretical percentage of C3 source was calculated and the practical percentage was determined in IRMS. The difference between these measurements represented the error of the method. The Legal Limit was calculated according to the IQS of each beverage, to determine the legality of commercial beverage. Twenty two brands of mango non-alcoholic beverages were analyzed. Twelve brands were classified as adulterated.
La música parrandera: interconexiones culturales en los Andes antioqueños. El caso de la vertiente caribeña
Authors: Tobón Restrepo Alejandro , Marín Ramírez María Cristina , López Gil Gustavo Adolfo
Published: June 2023

El presente artículo de reflexión analiza la convergencia de prácticas musicales y tendencias (estilos) en la etapa de surgimiento de la denominada música parrandera en Antioquia; en particular, las micro y macro relaciones implícitas de músicas andinas y caribeñas, desde sus características estructurales sonoras. En ese sentido, la discusión encara el impacto musical del Caribe latinoamericano y colombiano en las músicas del interior del país, dentro del contexto mediático producido por el surgimiento y la consolidación de la radio y de la industria discográfica en estos ámbitos. Este trabajo contribuye al esclarecimiento de las presunciones, hipótesis y dinámicas en torno a los orígenes de este género y aporta al reconocimiento de los recursos sonoros y estéticos que lo caracterizan. En otras palabras, responde, en términos etnomusicológicos, dos interrogantes recurrentes que, a juicio de quienes escriben, han sido poco desarrollados en los estudios existentes: ¿cuáles son las características estructurales sonoras de la música parrandera? y ¿cuáles son sus antecedentes? Este análisis es resultado del proyecto de investigación titulado “Música parrandera, caracterización, impacto y dimensión actual de esta práctica coreo-musical en Antioquia”.
Del ensimismamiento al trabajo con otras: el espacio que se teje cuando nos juntamos a tejer, bordar y coser
Authors: Cuéllar Barona Margarita , Caicedo Giraldo Daniela
Published: June 2023

El Costurero es un espacio de creación textil en Cali, Colombia, que desde 2018 convoca semanalmente a tejer, bordar y coser en colectivo. El presente artículo propone reconstruir su historia y reflexionar sobre la experiencia de trabajo, luego de varios años de encuentro, con el objetivo de revisar sus dinámicas y los vínculos que allí han emergido. Por un lado, nos interesa plantear un acercamiento metodológico a este espacio dadas sus dinámicas de trabajo mediadas por la creación textil, acercarnos a las historias de quiénes han hecho parte de éste y la relevancia de su experiencia. Por otra parte, nos proponemos explorar la relación entre prácticas textiles y su lugar en el mundo privado de las mujeres, para así abrirle paso a una aproximación a la categoría de ensimismamiento, como una experiencia del quehacer textil individual y una forma de transitar a la experiencia del hacer en colectivo. Finalmente, el artículo propone una reflexión sobre la investigación en contextos de creación colectiva, el trabajo entre mujeres y su conexión histórica con los haceres textiles, a partir de lo que se teje cuando nos juntamos a tejer, bordar y coser.
Binalarda giydirme cephe açısının enerji tüketimine etkilerinin incelenmesi
Authors: SÜMER HAYDARASLAN Kübra , DİKMEN Neşe
Published: June 2023

Günümüzde giydirme cam cepheler yaygın olarak kullanılmaktadır. Bu sistemlerin binalara eğimli bir şekilde uygulandığı çok sayıda örnek mevcuttur. Mimari tasarım aşamasında binanın enerji tüketim değerleri dikkate alınmadan verilen bu karar, kullanıcıların konforunun olumsuz etkilenmesine ve binaların enerji tüketimlerinin artmasına neden olmaktadır. Bu çalışmada cam giydirme cephenin zemin ile yaptığı açı değişiminin enerji tüketim değerlerine etkileri araştırılmıştır. Çalışma için DesignBuilder enerji simülasyon programında hazırlanan bir bina modelinin giydirme cam olan cephesine farklı açılar verilmiş ve oluşturulan her modelin farklı yönlere göre enerji tüketimleri hesaplanmıştır. Yapılan çalışmada cam giydirme cephenin açısı ile yönünün, binanın güneş enerjisi kazancı, ısıtma ve soğutma yükleri ile birincil enerji tüketimi değerlerini etkilediği görülmüştür. Çalışmanın sonucunda cam giydirme cephe açısı azaldıkça güneş enerjisi kazancı arttığına, cam giydirme cephe açısı arttıkça ise ısıtma yüklerinin arttığına ulaşılmıştır. Cam giydirme cephe açısı arttıkça soğutma yükleri azalmıştır. Çalışma ile eğimli cephelerin güneş enerjisi kazanımı düz cepheye kıyasla %1 ile %52 arasında değiştirdiğine, ayrıca binanın soğutma enerjisinde ve birincil enerji tüketiminde %1 ile %23 arasında tasarruf edilebileceğine ulaşılmıştır. Yapılan çalışma ile cam giydirme cepheler tasarım aşamasında iken zeminle yaptıkları açının değiştirilmesi sayesinde binanın enerji tasarrufu sağlanması açısından referans bir kaynak oluşturulmuştur.
Süperkritik karbondioksit kurutma kullanılarak biyokütleden karbon aerojel sentezi ve karakterizasyonu
Authors: KAYA EKİNCİ Emine , EKİNCİ Mustafa Serhat
Published: June 2023

Karbon aerojellerin gözenekli yapısı, yenilenebilirliği, düşük yoğunluğu, yüksek elektriksel iletkenliği ve kimyasal kararlığı gibi üstün özellikleri kimyasal proseslerde adsorbent ya da katalizör olarak kullanımını yaygınlaştırılmıştır. Karbon aerojel üretiminde hammadde olarak Resorsinol-Formaldehit yerine biyokütlelerin kullanılması, üretim maliyetini düşürmesinin yanı sıra çevre dostu bir uygulamadır. Yapılan çalışmada iki farklı biyokütle (ağaç kabuğu ve demlenmiş çay atığı) kullanılarak karbon aerojel sentezi gerçekleştirilmiştir. Sentez esnasında kullanılan biyokütle sırasıyla önişlem (yıkama/öğütme), hidrotermal işlem, süperkritik karbondioksit ile kurutma ve karbonizasyon aşamalarından geçmiştir. Sentezlenen malzemelerin karakterizasyounda XRD, Azot adsorpsiyon – desorpsiyon analizi, SEM ve FTIR analizleri kullanılmıştır. Sentezlenen karbon aerojeller üstün özellikleri ile enerji depolama, ısı yalıtımı, çevre temizliği, kimyasal sensörler gibi alanlarda kullanımı açısından oldukça umut vericidir.
Physician Re-Entry: Scoping Review Protocol v1
Authors: Goudarzi Arshan
Published: June 2023

Objective: The objective of this scoping review is to assess the extent of literature on re-entry to understand how re-entry is defined, the main reasons for career breaks and re-entry, challenges and barriers to re-entry, as well as solutions developed to assist re-entry for physicians. Introduction: Physicians are taking breaks for a variety of reasons. 40% of women physicians reduce to part-time or exit medicine within six years of residency training. Additionally, nearly half of all inactive physicians are primary care physicians. Understanding both barriers and interventions to support re-entry for physicians is essential in the context of upcoming physician shortages. Inclusion criteria: Physicians who have taken a break or leave from their career and then re-entered the workforce will be included. This does not include medical students. Physician re-entry models, interventions including accessibility and utilization across differing reasons for breaks/leaves, outcomes will be examined. Re-entry for physicians around the world will be studied without limitations on country or setting. Race, ethnicity, and gender of physicians will be extracted from studies. Methods: Following PRISMA and JBI reporting guidelines, we plan to search MEDLINE, Embase, Web of Science, and relevant medical associations for English language, peer-reviewed studies. We will include all year-ranges that are indexed within each database. Eligibility screening (title/abstract and full-text) and data extraction will be completed by at least two independent reviewers and conflicts will be resolved as a team. Bibliographic information and key study characteristics from included studies will be collected using a tool that will be developed through an iterative process.
Social Workers and Irregular Migrants in the Assistance Circuit: Making Sense of Paradoxical Inclusion
Authors: Felder Maxime , Fneich Sahar , Stavo-Debauge Joan
Published: June 2023

Despite restrictive policy frameworks, cities sometimes provide support to irregular migrants. Scholars have analysed these forms of inclusion, focusing on policies and tensions between inclusionary approaches by local or urban actors and exclusionary approaches by national or supranational authorities. This article seeks to shift the focus to the street level, examining how support is delivered, how it is experienced by different categories of irregular migrants, and how frontline social workers make sense of their work and foster “paradoxical inclusion.” To this end, the article first analyses the experiences of young North African irregular migrants in Geneva, Switzerland. Based on ethnographic research, we describe their everyday life in the “assistance circuit,” which forces them to follow a daily routine determined by the services offered at fixed times in different places. Over time, the young men develop a sense of entrapment and alienation, as well as escape strategies. Secondly, by examining the perspective of social workers, we show that the constraints associated with the assistance circuit reflect a social work paradigm that aims to keep people on the move, limit dependency and promote autonomy. This paradigm coexists with another, conflicting one, which can be described as palliative, but which also seems paradoxical to the irregular migrants who aspire to full participation in social and economic life. Overall, our study suggests an alternative interpretation of the limitations and paradoxes surrounding irregular migrants’ inclusion that complements policy‐oriented approaches.
Molecular patterns of neurodegeneration in coronavirus infection caused by SARS-CoV-2
Authors: Mikhailov Aleksandr O. , Plekhova Natalia G. , Sokotun Svetlana A. , Simakova Anna I. , Bedareva Anastasia S.
Published: June 2023

BACKGROUND: The reports on the neurological and psychiatric consequences of coronavirus infection are of particular relevance owing to their limited availability. The molecular patterns of nerve tissue damage are an important task for understanding the underlying mechanisms of neurodegeneration.
AIM: To study the dynamics of changes in the content of markers of neurodegeneration and neuroplasticity in patients with coronavirus infection in the acute and long-term periods.
MATERIALS AND METHODS: A total of 200 patients aged 5183 years were assessed and categorized into two age groups: 5165 years and 6683 years. The levels of neurodegeneration markers were determined in the blood serum: neurofilament heavy chains (NEFH), S100 A6 protein, S100 B protein, -amyloid 1-42 (A1-42), microfilament associated tau protein (MAPt), serum amyloid P (SAP), and neuroplasticity: neurotrophin 3 (NT3), neurotrophin 4 (NT4). The study was performed thrice in the acute period of the disease at the time of admission to the hospital and at 6 and 12 months after discharge.
RESULTS: In the first group of patients, in the acute period of coronavirus infection, women showed higher concentrations of S100 A6 (3.20.2), S100 B (0.40.06), NT3 (1.10.1), and MAPt (0.130.02), while the values for the men were NEFH (0.150.03), A1-42 (2.10.1), and SAP (4.50.06). In the long-term, a general tendency of long persistence of high levels of the markers of neurodegeneration and neuroprotection was noted in young men compared to women, indicating a long period of rehabilitation. After 12 months, the level of calcium-binding proteins S100 A6 and S100 B in men was 1.50.2 pg/mL and 0.30.04 ng/mL, which was 1.10.1 pg/mL and 0.20.04 ng/mL, respectively, in women. The level of SAP in men during the long-term period after 12 months was 4.30.1 versus 3.90.2 ng/mL in women, indicating a significant difference.
Analyses of the results for the patients in the second group indicated a higher level of S100 A6 and A1-42 in the acute period for women, while men showed higher levels of S100 B, NT3, and SAP.
CONCLUSION: The changes in patients with coronavirus infection both in the acute and late periods indicated active neurodegeneration processes in different age groups, which manifested as a result of an increase in the concentration of specific proteins in the blood serum.
Seismological studies at Parkfield. I. Simultaneous inversion for velocity structure and hypocenters using cubic B-splines parameterization
Authors: Michelini A. , McEvilly T. V.
Published: June 2023

A model for the 3D P- and S-wave velocity structure at Parkfield has been developed by the systematic inversion of arrival times for microearthquakes and surface Vibroseis sources, recorded by nearby CALNET stations and by the local borehole-installed 10-station High-Resolution Seismic Network there. A modification of the linear B-splines model parameterization method of Thurber (1983) to a cubic B-splines formulation, through tests inverting synthetic data sets for the Parkfield configuration, is found to produce smooth velocity distributions that still retain some small-scale features. Application of the method to 953 P-wave and 288 S-wave arrivals from 111 microearthquakes and 8 Vibroseis locations throughout the study area yields a velocity structure having variable resolution. A low-velocity zone appears to coincide with the creeping segment of the San Andreas fault zone northwest of the 1966 Parkfield earthquake epicenter. An increase of about 15 per cent in seismic velocities is seen from the northeast to southwest across this segment of the fault zone. The higher velocities to the southwest apparently correspond to the granitic basement. The contrast across the fault is subdued to the southeast along the 1966 rupture zone. A high Vp/Vs ratio of 1.9 is seen in a 2-km-wide volume near the location of the 1966 main shock hypocenter, presumably the nucleation zone for the expected M = 6 Parkfield earthquake.
A Study on the Factors of Young Adults’ Risky Asset Investment: Focusing on the Personal and Environmental Factors Leading to Gamblified Investment
Authors:   Research Institute For Life And Culture Sogang University, Maeng Seong Jun , Yang Eun Jeong , Kang Jun Hyeok
Published: June 2023

Recently, the problem of economic loss caused by young adults’ investment in the asset market has emerged as a social problem. Therefore, the purpose of this study is to identify the causes of young adults’ risky investments and to suggest policy alternatives. To achieve the purpose of the study, 151 cases were extracted from 87 media articles in which young adults’ risky asset market investment cases were specifically revealed. The collected data were analyzed using the inductive content analysis method proposed by Elo and Kingäs (2008). As a result of the analysis, a total of 7 subcategories were derived, including “FOMO syndrome,” “overconfidence,” “aspiration,” “reference group,” “economic difficulties,” “liquidity expansion,” and “high accessibility.” In addition, considering the relationship among the derived categories, the researchers assumed that the main category that integrates the entire category is “social, economic, and technological conditions that lead to investing like gambling by stimulating feelings of anxiety, deprivation, confidence, and aspiration.” Based on the research results mentioned above, the researchers suggested policy alternatives: Expansion of financial education that can prevent young adults from risky investments, development of campaigns to create a healthy investment culture, expansion of the role of financial-welfare counseling centers for those who suffering from investment failure, and establishment of an integrated case management model based on the public-private cooperation.
Sovereign Nation and Society in the Times of Gentry Democracy and Today – in the Light of the Constitution of the Republic of Poland of April 2, 1997
Authors: Olesiejuk Renata Agnieszka
Published: June 2023

This article attempts to compare the understanding and application of the concept of “nation”, de facto functioning in the era of “golden noble freedom” and under the regulations of the Constitution of the Republic of Poland of April 2, 1997. During the analysis of the problem, the historical background of the implementation of democratic aspirations in the period from the 15th to the 18th century was presented. Eighteenth century, as well as reference to the contemporary rules of the political system (Democratic state ruled by law, Sovereignty of the nation). When com paring the results of the analysis and drawing conclusions, it was taken into account that genry democracy was born from the grassroots level, due to the need to liberate society from the king’s rule, and now it results from the implementation of the main idea of the system and the constitutional principle of a democratic state ruled by law. In the course of the analysis, the similarities and differences in the understanding of the analyzed concept and other concepts relating to the population inhabiting the territory of the state were taken into account. During the research, a comparative and historical analysis as well as a dogmatic-legal method were used, with particular emphasis on the axiology of the Polish Basic Law in the field of systemic norms.
El Impuesto al Valor Agregado: propuesta de una nueva reforma
Authors: Cadena Albarracin Misael Andres , Martínez Anteliz Angie Liliana , Sanjuan Vélez Daniela
Published: June 2023

El objetivo de esta investigación es proponer una reforma tributaria favorable del impuesto al valor agregado para las personas naturales o también llamados contribuyentes en materia fiscal, que cuentan con una capacidad económica muy diferente entre cada uno, ya sea, en materia de ingresos o estrato social. Para el logro de este objetivo se planteó en primer lugar, comparar la aplicación del impuesto, la clasificación, tarifa y sujetos sobre los que recae el impuesto a nivel latinoamericano seleccionando algunos países. Seguido, se analiza el impuesto a nivel Colombia y se exponen las inequidades que afectan a los consumidores al momento de pagar este impuesto mediante la compra de diferentes insumos y, por último, se propone una reforma que beneficie a todos los contribuyentes en el cual, se tenga una equidad para todos, de acuerdo con sus ingresos económicos y su estrato social. Finalmente, en este artículo se concluye que, el Impuesto al Valor Agregado necesita una reestructuración de la forma en que se impone dicho impuesto y su porcentaje, para que sea equitativo y justo en cada uno de los contribuyentes.
Indagaciones sobre mentoría virtual en estudios doctorales. Una revisión apoyada en la heurística decisional para la selección del mentor
Authors: Márquez Rondón Gerardo Antonio , Pérez María Auxiliadora
Published: June 2023

El objetivo del artículo es indagar sobre la heurística decisional, utilizada por los estudiantes de doctorado en gerencia en tres universidades venezolanas, para la elección de un mentor en el contexto de un proceso de mentoría virtual. Teóricamente se trata de una investigación basada en el paradigma bimodal de la educación por Internet, articulada y enfocada desde el paradigma fenomenológico interpretativo. Metodológicamente se trata una investigación exploratoria y cualitativa, en la que se aplicó para la recolección de la información entrevistas enfocadas en las percepciones de los estudiantes en relación a las cualidades del ser, saber y hacer valoradas en el mentor. Los resultados develaron que la relación mentor-aprendiz en el proceso de mentoría virtual, se edifica sobre cuatro heurísticos fundamentales: la empatía, la dedicación, la coherencia y la integralidad. Se puede concluir que lo que conforma una aproximación empírica a las cualidades del mentor virtual que los aprendices requieren para aprender los procesos de producción científica doctoral con éxito. Por tanto, se propone que estos heurísticos deben ser desarrollados por ellos para generar confianza en el estudiante. Este trabajo incentiva a los mentores a desarrollar los rasgos identificados en la formación académica, de cara a aumentar la calidad de los procesos de formación doctoral.
Percepción del gasto de la comunidad educativa frente al covid-19
Authors: Martínez Ramos Valeria , Zetina Pérez Carlos David , Muñoz Aparicio Cecilia García
Published: June 2023

El presente artículo tiene por objetivo conocer la perspectiva del gasto de la comunidad educativa ante el covid-19. Al respecto, se analizan de manera cualitativa los comentarios de los involucrados en el estudio a través de la teoría fundamentada en gastos, comprobando la existencia de factores económicos inmersos por aspectos de salud, trabajo, sociedad y educación que responden al abrupto cambio de modalidad. Se concluye que la comunidad educativa se adapta al cambio de manera compleja, donde la situación no es igualitaria ya que esta se adecua a las posibilidades económicas y sociales de cada individuo, en algunos casos debido a la falta de acceso a las tecnologías imposibilita continuar con el proceso educativo de manera óptima. Los análisis fortalecen el conocimiento en esta área de investigación, considerando las diversas experiencias que dan cuenta de la complejidad que se vive ante alteraciones en el ambiente socioeconómico causado por un hecho inesperado como una pandemia.