bluuebunny/crossref_metadata_2025 huggingface dataset:
A Compositional Approach to the Simulation of Queuing Systems with Random Parameters
Authors: Goncharenko Vladimir , Khomonenko Anatoly , Abu Khasan Rakheb
Published: November 2024

A general approach to modeling random service processes under conditions of disturbances and uncertainty of the initial data is substantiated. A compositional approach to constructing simulation models of queuing with parametric uncertainty based on phase-type distributions and phase functions is proposed. The calculation and comparison of the characteristics of the developed simulation models with analytical solutions were carried out to confirm their effectiveness and accuracy. The problems of uncertainty of the initial data and their impact on the modeling of service systems are highlighted. The importance of taking into account parametric uncertainty in simulation models is emphasized in order to increase their adequacy and applicability in practice. The study includes a description of a general approach to modeling random service processes with uncertainty, as well as methodological foundations for the application of phase distributions and functions in compositional modeling. Four classes of service models are considered, differing in the type of integral core and phase function, which makes it possible to implement a variety of random service processes, taking into account their characteristics and conditions of their occurrence. The analysis of a model with an exponential integral core and various types of phase functions is carried out, which demonstrates the flexibility and wide possibilities of the proposed compositional approach to the study and modeling of service systems. The results of simulation modeling are presented, confirming analytical studies and showing the applicability and effectiveness of the developed approach in the construction and analysis of models of service systems with random parameters. The practical significance of the compositional method for the design and modernization of information and computing systems at various stages of their development, taking into account the uncertainty of the initial data, is noted. The work is focused on the development of simulation methods for queuing systems and opens up new prospects for their research and optimization in conditions of uncertainty of initial parameters.
"EN PRENSA" Medio de cultivo sin autoclave para la micropropagación de un híbrido de Cattleya (Rhyncholaeliocattleya)"EN PRENSA"
Authors: Ramírez Mosqueda Marco Antonio
Published: November 2024

La importancia ornamental de las orquídeas se debe a las diversas formas, tamaños y colores de sus flores. Desafortunadamente, la propagación asexual y sexual de estas especies lleva mucho tiempo y produce un número limitado de propágulos comerciales. Por tanto, el cultivo de tejidos vegetales ha resultado una alternativa adecuada para la micropropagación. Sin embargo, algunos de los materiales utilizados en esta técnica son caros. Por lo tanto, el objetivo de este estudio fue proponer un método alternativo para la propagación in vitro que involucra el uso de recipientes desechables y un medio de cultivo que no requiere autoclave. Se evaluaron diferentes concentraciones de 6-bencilaminopurina (BAP: 0, 0.5, 1.0, 1.5, 2,0 y 2.5 mg•L-1) en medio MS (Murashige y Skoog) autoclavado y no autoclavado, seguido de aclimatación. Luego de 45 días de incubación, se evaluó el porcentaje de contaminación, número de brotes por explante, longitud de brotes, número de hojas, número de raíces y longitud de raíces. No se observó contaminación utilizando el método alternativo y autoclave. El mayor número de brotes por explante (3.77) se produjo en 1,0 mg•L-1 de BAP en medio de cultivo no autoclavado. Se observó una tasa de supervivencia del 98% durante la fase de aclimatación. Estos resultados pueden utilizarse como una alternativa para la micropropagación comercial de orquídeas.
Electromagnetic physics of the MPA: comprehensive review of applications, design, and analysis of microstrip patch antenas for 5G-technologies
Authors: Bernardo Helton S.
Published: November 2024

This work presents a study focused on the electromagnetic evaluation of Microstrip Patch Antennas (MPAs) through electromagnetic simulation for 5G technology applications. The paper addresses two commonly used feeding structures – coaxial probe and transmission line. In our analysis, we observed the scattering and impedance matrices concerning feeding point variations. Additionally, a parametric study explored the impact of relative permittivity, length, width, and height on MPA electromagnetic performance for 5G frequency operation, understanding the physics of these antennas. The results revealed the following: varying the relative permittivity shifted the resonance frequencies and reduced gain; changing the patch length slightly shifted the resonance to lower frequencies without significant changes in the radiation pattern; adjusting the patch width maintained the resonance while increasing matching levels without significant radiation changes; and altering the substrate height shifted the resonance to lower frequencies.
Aprimorando a classificação de descrições de produtos em português com a utilização de técnicas da recuperação de informação: uma abordagem de agrupamento de descrições
Authors: Daru Gilsiley Henrique , Loch Gustavo Valentim , Pietezak Daniel Felipe
Published: November 2024

Resumo: A crescente demanda por sistemas automatizados de classificação de produtos em plataformas de e-commerce impulsionou a busca por soluções eficientes para a categorização de produtos, especialmente em português. Este estudo investiga a adaptação de técnicas clássicas de recuperação da informação, como bag-of-words, TF e TF-IDF, para a tarefa de classificar descrições curtas de produtos. A pesquisa avalia diferentes estratégias de pré-processamento e tokenização, incluindo a análise do impacto da normalização. Os resultados demonstraram que métodos simples de recuperação da informação, quando combinados com pré-processamento adequado e otimização de parâmetros, podem alcançar desempenho significativamente superior.
PRIORIDADES TEMÁTICAS PARA A EDUCAÇÃO PERMANENTE EM SAÚDE MENTAL NA PERSPECTIVA DE TRABALHADORES DA SAÚDE
Authors: Lima Helder de Pádua , Machado Cynthia Fernanda Teles , Britto Ana Carolina Saggin , Rozza Soraia Geraldo , Costa Maria Antonia Ramos , Souza Verusca Soares de
Published: November 2024

RESUMO Objetivo: conhecer as prioridades temáticas para a educação permanente em saúde mental na perspectiva de trabalhadores do Sistema Único de Saúde. Método: estudo exploratório e qualitativo realizado com 37 trabalhadores da saúde de um município de Mato Grosso do Sul, em setembro de 2022. A coleta de dados foi realizada por meio de questionário individual autoaplicável e de grupo focal, norteado por um roteiro semiestruturado de perguntas. O material foi submetido à análise de conteúdo, modalidade temática. Resultados: As temáticas ‘Humanização no cuidado em saúde mental’, ‘Saúde mental no contexto da atenção primária’, ‘Manejo de situações de crise’ e ‘Saúde mental do trabalhador da saúde e valorização profissional’ despontaram como prioritárias para ações de educação permanente em saúde mental. Conclusão: o conhecimento acerca dessas prioridades temáticas possibilita planejar ações de educação permanente pautadas nas problemáticas cotidianas vivenciadas pelos trabalhadores da saúde.
GUIA DE PREPARO DO PACIENTE CIRÚRGICO PARA A ALTA HOSPITALAR: VALIDAÇÃO DE TECNOLOGIA CUIDATIVO-EDUCACIONAL
Authors: Nietsche Elisabeta Albertina , Colussi Giovana , Salbego Cléton , Cogo Silvana Bastos , Ramos Tierle Kosloski , Girardon-Perlini Nara Marilene Oliveira , Sehnem Graciela Dutra
Published: November 2024

RESUMO Objetivo: Validar o conteúdo de uma tecnologia cuidativo-educacional, no formato de guia, voltado ao preparo do paciente cirúrgico e seu acompanhante para a alta hospitalar. Método: Estudo metodológico realizado entre fevereiro de 2019 a dezembro de 2021, na cidade de Santa Maria-RS-Brasil. Participaram 22 especialistas nas áreas de enfermagem, fisioterapia e nutrição. A análise ocorreu com o Índice de Validade de Conteúdo. Os dados foram coletados online e tratados pela estatística descritiva e analítica. Resultados: O guia obteve validade de 0,81. Seu conteúdo destina-se aos pacientes cirúrgicos e acompanhantes, sob mediação do profissional da saúde. O guia contém cuidados com ferida operatória, sonda gástrica e entérica, estomias e cateterismos vesicais. Foram realizadas adequações quanto a linguagem, objetividade do texto, retirada de termos técnicos e revisão das imagens. Conclusão: Segundo os especialistas, o guia compreende uma tecnologia válida para ser utilizada pelos profissionais na educação em saúde com o paciente cirúrgico e seu acompanhante.
SUFRIMIENTO EMOCIONAL EXPERIMENTADO POR PROFESIONALES DE ENFERMERÍA EN SITUACIÓN DE CRISIS SANITARIA
Authors: Monteiro Wagner Ferreira , Ximenes Vitória Miranda , Silva Denise Maria Guerreiro Vieira da , Andrade Lucas Lorran Costa de , Lima Kássia Janara Veras , Ferreira Darlisom Sousa , Ramos Flávia Regina Souza
Published: November 2024

RESUMEN Objetivo: investigar las repercusiones emocionales que experimentaron los profesionales de enfermería durante la pandemia de COVID-19 en Manaos. Método: estudio descriptivo cualitativo. La recolección de datos se realizó de junio de 2020 a febrero de 2021, en la capital del estado de Amazonas, Brasil, a través de entrevistas semiestructuradas con profesionales de enfermería que trabajaban en la primera línea, codificadas con ayuda del programa ATLAS.ti 8.0 y analizadas según los preceptos del análisis de Redes Temáticas. Resultados: los 19 participantes eran enfermeros (68%) y técnicos/auxiliares de enfermería (32%). De la Red Temática Impactos Emocionales surgieron cuatro temas: cambios inesperados, mayor tensión, sufrimiento emocional y estrategias de apoyo psicosocial. Conclusión: las experiencias de los profesionales deben contribuir a la creación de iniciativas que promuevan y protejan la salud y las condiciones de trabajo de dichos profesionales, para garantizar la calidad de la atención que brindan.
ESCALA DE CLIMA DE TRABAJO EN EQUIPO (ECTE): ESTUDIO DE VALIDEZ, FIABILIDAD Y NORMALIZACIÓN
Authors: Binotto Cibele Correia Semeão , Ogata Márcia Niituma , Meireles Everson , Silva Jaqueline Alcântara Marcelino da
Published: November 2024

RESUMEN Objetivo: presentar evidencias de validez, fiabilidad y un procedimiento de estandarización para la interpretación de la Escala de Clima de Trabajo en Equipo en equipos de salud familiar. Método: estudio metodológico con diseño exploratorio correlacional y diseño transversal. Los participantes fueron profesionales de los equipos de Salud de la Familia de un municipio del interior del estado de São Paulo - BR. La recolección de datos se inició entre diciembre de 2020 y abril de 2021. Los datos se analizaron mediante estadística descriptiva e inferencial. Resultados: el ajuste del modelo de medición de cuatro factores latentes correlacionados (Análisis Factorial Confirmatorio) fue aceptable y satisfactorio. Los coeficientes de fiabilidad compuestos fueron superiores a 0,95. Fue posible proponer un sistema de normas útil para interpretar los resultados. Conclusión: el estudio mostró evidencias de validez y consistencia interna de la Escala, que se confirma como un poderoso instrumento cuyos hallazgos pueden contribuir a fortalecer el trabajo en equipo y la colaboración interprofesional.
Towards a Common Metrics and Evaluation Framework for Assessment of Older Adults and Caregivers Interacting with Artificial Intelligence
Authors: Marwad Jasmin , Kiyemba Daisy M. , Carter Elizabeth J. , Norton Adam
Published: November 2024

Artificial intelligence (AI) has applications in assisting older adults to age in place and provide support to them and their caregivers as their cognition declines with age. However, effective assessment methods of this technology are needed in order to benchmark their performance and a common set of metrics and evaluation methods would enable such assessments to be compared to one another. To this end, we propose a common framework for human-AI interaction involving care recipients and their care networks. From the results of a literature review exercise, a framework with sample metrics, related measures, qualified evaluation tools, and contextual factors that impact assessment are reviewed. This paper provides a sample of common metrics in one of the framework’s measurement spaces (human-AI interaction) and discusses some of the impacts of contextual factors and how use of the common metrics and evaluation framework can be used for meta-analysis and to guide future research. Additional future articles are planned to cover the other measurement spaces in the framework (system performance, task performance, and well-being), including their particular common metrics and evaluation methods. This effort aims to provide guidance for researchers in this domain as well as highlight measurement gaps that can be filled by future research.
Machine Unlearning in Digital Healthcare: Addressing Technical and Ethical Challenges
Authors: Sakib Shahnewaz Karim , Xie Mengjun
Published: November 2024

The ``Right to be Forgotten," as outlined in regulatory frameworks such as the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA), allows individuals to request the deletion of their personal data from deployed machine learning models. This provision ensures that individuals can maintain control over their personal information. In the digital health era, this right has become a critical concern for both patients and healthcare providers. To facilitate the effective removal of personal data from machine learning models, the concept of ``machine unlearning" has been introduced. This paper highlights the technical and ethical challenges associated with machine unlearning in digital healthcare. By examining current unlearning methodologies and their limitations, we propose a roadmap for future research and development in this field.
The Role of the National Service Scheme in Fostering Social Skills Among Engineering Graduates
Authors:   Department of Humanities, NMAM Institute of Technology, Nitte (Nitte Deemed to be University), Udupi, Karnataka 574110, India., Lobo Sonia , Nekkar Srinivas ,   Department of Humanities, NMAM Institute of Technology, Nitte (Nitte Deemed to be University), Udupi, Karnataka 574110, India., B Ramakrishna ,   Department of Humanities, NMAM Institute of Technology, Nitte (Nitte Deemed to be University), Udupi, Karnataka 574110, India., Chiplunkar Niranjan N ,   Prinicipal, NMAM Institute of Technology, Nitte (Nitte Deemed to be University), Udupi, Karnataka 574110, India.
Published: November 2024

Abstract : This study embarks on a captivating journey into the realm of National Service Scheme (NSS) engagement, delving deep into its impact on the multifaceted landscape of social skills development among engineering graduates. With data meticulously collected from engineering graduates, who graduated from NMAM Institute of Technology between the years 2021 and 2023, we employ rigorous statistical analysis, guided by SmartPLS 4.0, to unveil the intricate connections between NSS engagement outcomes, vital mediating variables, and the ultimate manifestation of these synergies in the form of overall social development. Through a panorama of hypotheses testing, mediation analysis, and meticulous exploration, our findings offer compelling insights into the transformative potential of NSS engagement. These revelations extend a resonating call to educators, employers, and policymakers to collaboratively nurture an empowered generation poised to flourish within a socially interconnected world. Keywords: NSS; Social Skills; Engineering; Graduates; Community Service.
Metrics With Performance Indicators Used For Calculating the Mapping Strength of Course Outcome With Program Outcome
Authors:   Department of Computer Science and Engineering, Institute of Technology & Management, ITM Gwalior, M.P, India, Yadav Pradeep , Tomar Archana ,   Department of Computer Science and Engineering, Institute of Technology & Management, ITM Gwalior, M.P, India, Soni Rishi ,   Department of Computer Science and Engineering, Institute of Technology & Management, ITM Gwalior, M.P, India, Dubey Gaurav ,   Department of Computer Science and Engineering, Institute of Technology & Management, ITM Gwalior, M.P, India, Bhargava Chandra Prakash ,   Department of Computer Science and Engineering, Institute of Technology & Management, ITM Gwalior, M.P, India, Kumari Jyoti ,   Department of Computer Science and Engineering, Institute of Technology & Management, ITM Gwalior, M.P, India
Published: November 2024

Abstract : Outcome-Based Education (OBE) worldwide plays a pivotal role in enhancing academic standards by equipping students with problemsolving skills. To effectively assess the quality of education, it is essential to intricately map courses with specific program objectives (POs). The AICTE introduced a comprehensive exam reform policy in 2018, aiming to enhance assessment methodologies. This innovative approach involves categorizing each Program Outcome (PO) into distinct competencies and subsequently breaking down each competency into a specific number of performance indicators. This innovation enables a more nuanced evaluation of educational outcomes. In this context, a developed metric proves instrumental in aligning the data structure course with relevant performance indicators (PIs). This systematic mapping ensures that educational programs align with desired outcomes, fostering a dynamic and responsive learning environment conducive to addressing complex challenges. Keywords : Performance indicators, Competencies, Course outcome, Program outcome
Students' Perceptions of Written Examinations and Typed Examinations- A Comparative Study in Gulf University
Authors:   Gulf University, Kingdom of Bahrain., Nagi Dr. Muskan , Bojiah Dr. Janaki ,   Thiagarajar School of Management, India, Al Firas Prof. Mohanad ,   Gulf University, Kingdom of Bahrain.
Published: November 2024

Abstract : Assessment is inevitable in any kind of formal education because it provides an idea of the amount of learning achieved to both the students and the instructors. Assessment has undergone a drastic change in its form and nature owing to the COVID-19 intervention. During the pandemic, most traditional assessments were reframed to suit to the online mode of conduct. Hence, the typed examinations came into picture replacing the written examinations. Though the students were not trained for the typing exams, they were enforced to take up typed examinations as there was no choice available during that time. This study intends to understand the students’ perceptions with respect to written examinations and typed examinations to identify the preferred mode of giving the examinations. A survey questionnaire comprising closed ended questions on a 5-point Likert was used to get the inputs from the students at Gulf University, Bahrain. Descriptive statistics methodology was adopted after carrying out the Cronbach’s alpha, Pearson’s chi square tests and linear regression on the data. The Statistical Package for Social Sciences (SPSS) v21 was employed for data analysis. The results of the study suggest that the students prefer typing examinations for the ease of typing speed, proficiency in online reading skills, and typing function awareness. The scope of the study is to recommend bringing in the necessary changes in the policies and practices abiding the typing examinations to sustain the preferred mode in an ethical manner. Plus, it suggests addressing the challenges pertaining to the less preferred mode of examinationshandwritten examination for improvisation and further enhancement. Keywords : students, written, typed, examinations, assessments, Gulf University
Status and Trend of General Education, Technical Education, and Vocational Education by Persons with Disabilities in India: Reflection of three NSS rounds
Authors:   Department of Economics, Serampore Girls' College, affiliated to University of Calcutta, West Bengal, India, Haldar Uttam , Bisai Santanu ,   Department of Economics, Sidhu-Kanhu-Birsha University, Purulia, West Bengal, India
Published: November 2024

Abstract : The present study attempts to estimate the status and trend in educational achievement, particularly in technical and vocational education among persons with disabilities in India across gender and social groups. 47th, 58th, and 76th round unitlevel National Sample Survey data were analyzed using the gender parity index, compound annual growth rate, ordered logit model, and binary logit model. Result shows that though the literacy rate among persons with disabilities in India gradually increases over time, still half of the persons with disabilities were illiterate compared to one-fifth of non-disabled peers. A large section of children with disabilities drops out. The transition of education from school level to higher education, technical and vocational education by persons with disabilities was very slow. Only 4.31 percent, 3.08 percent, and 1.08 percent of persons with disabilities received higher education, vocational education, and technical training in 2018. There was a gradual decrease in gender disparity against women with disabilities and turns in favor of women at all levels of general education. However, gender disparity persisted against females with disabilities, in the attainment of technical and vocational training. The attainment of technical education by males with disabilities was three times higher compared to females with disabilities. Strong caste discrimination still exists in all levels of educational attainment against scheduled castes and scheduled tribes. Educational achievement is negatively related to the severity of the disability, household size, and rural-urban areas, but positively to households' economic status. The study draws important policy implications to improve the education of persons with disabilities. Keywords: Caste discrimination, Gender discrimination, General education, Persons with disabilities, Technical Education, Vocational Education
Influências das crenças comportamentais, justiça percebida, atitudes às experiências passadas e complexidade do fato na intenção de reclamação
Authors: Sallaberry Jonatas Dutra , Helfenstein Camila , Santos Edicreia Andrade dos , Azevedo Sayuri Unoki de
Published: November 2024

Este estudo buscou analisar a influência das crenças comportamentais, da justiça percebida, da atitude às experiências passadas e da complexidade do fato na intenção de reporte pela abordagem de reclamação. Realizou-se um survey com 218 estudantes de Ciências Contábeis, cujas relações e capacidade explicativa foram analisadas pelas técnicas de equações estruturais com mínimos quadrados parciais (PLS-SEM), análise multigrupos (MGA) e complementadas com análise qualitativa comparativa por lógica Fuzzy (fsQCA) para a identificação de soluções para cenários de elevada complexidade. As crenças de controle comportamental percebido, norma subjetiva e atitude influenciam a intenção de reclamação. A justiça percebida influenciou diretamente a atitude e indiretamente a intenção de reclamação, mediada pelas crenças de atitude. Em relação às atitudes às experiências passadas, a atitude ao sucesso influenciou positivamente a atitude e a justiça percebida, enquanto a atitude à falha apresentou relações significativas e negativas. Em cenários de alta complexidade, as relações entre as crenças comportamentais e a intenção de reclamação mantiveram relações positivas e significativas, mas na baixa complexidade, a atitude e a justiça percebida não demonstraram relações significativas na intenção de reclamação. O estudo contribui com as teorias comportamentais, evidenciando resultados empíricos da avaliação da justiça percebida e a atitude frente às experiências passadas, além de demonstrar o impacto da complexidade do fato nas relações entre intenção de reclamação e seus determinantes.
The Force Tracking Moment Action on the Gyrostat Motion
Authors: Makeev Nikolay N.
Published: November 2024

The gyrostat moves around a fixed point under the forces influence in pseudo-Euclidean space with signature (3,1). The resulting moment of the external forces system and the gyrostatic moment are specified relative to the coordinate orthoreper, invariably associated with the gyrostat carrier, and are constant. Three types of gyrostat motion are given, in each of which the resulting force vector-moment is collinear to of the main axis of the gyrostat inertia, and the gyrostatic moment is orthogonal to this axis. The vector manifold of the gyrostat angular velocities and the field of its phase trajectories in the state space are found with the parametric integration method using. Integration of the gyrostat motion equations is carried out in quadratures and elliptic functions of time.
Harmonization Status Analysis of 09.03.01 "Computer Science and Computer Engineering" Disciplines
Authors:   Perm National Research Polytechnic University, Faizrakhmanov Rustam A. , Dolgova Elena V. ,   Perm National Research Polytechnic University, Sukhikh Ilya I. ,   Perm National Research Polytechnic University
Published: November 2024

The article studies the issue of harmonious state of disciplines involved in the educational process of the direction 09.03.01 "Informatics and Computer Science" with the profile "Automated Systems of Information Processing and Control". The information about the methods of key information processing from files with working programs of disciplines is given. The result of data processing is demonstrated. Further perspectives of optimization of students' learning process by building a detailed model of educational program, which will allow to estimate the current level of harmonization with greater accuracy, as well as to supplement the initial model with new useful information, are described.
An Algorithm Creating for Predicting the Inaccurate Information Presence in Social Networks in Russian Language
Authors:   Tyumen State University, Chernyaev Alexander A. , Ivashko Alexander G. ,   Tyumen State University
Published: November 2024

The development of user-to-user communication methods, such as social media, has resulted in the amount of inaccurate information reaching record levels. This problem affects not only regular users of social media, but also the media, which may refer to such messages as a source of information. The spread of false information leads to both financial and life-threatening problems. It is almost impossible to trace these messages manually and therefore it is required to create an algorithm that can perform this process automatically. The purpose of this paper is to try to create such an algorithm for the Russian language using machine learning methods. The data on which the models are based is a sample of data that has undergone the process of manual annotation. The sample has undergone the process of preparation and balancing. From this sample, 29 attributes were obtained which can be divided into 3 categories: user, text and distribution. These attributes and were applied to obtain classification models that are able to predict with sufficiently high probability. The result of this work is an algorithm for predicting the presence of inaccurate information in a social network post.
The MCF-7 cell line: characteristics and interaction with nanomaterials of different structures
Authors:   Perm State University, Dolgikh Maria D. , Zamorina Svetlana A. ,   Perm State University,   Institute of Ecology and Genetics of Microorganisms PFRC of the Ural Branch RAS
Published: November 2024

This article provides a comprehensive overview of the MCF-7 breast cancer cell line, an epithelial-like adhesive cell line derived from the adenocarcinoma of breast ducts of a 69-year-old woman in the United States. It explores the historical context of its acquisition, the challenges encountered by researchers, its morphological characteristics, expression of intracellular and surface markers, genetic traits, and its wide-ranging applications in biomedical research, including drug testing, elucidation of cell biology, exploration of factors influencing cellular behavior, and the development of novel strategies for combating breast cancer. The MCF-7 cell line serves as a robust model for investigating various parameters such as cytotoxicity, functional dynamics, proliferation rates, and secretion activities when interacting with nanoparticles of diverse compositions, including metallic, non-metallic, organic, and their potential combinations. Notably, this article offers an in-depth analysis of the interactions between carbon nanomaterials and MCF-7 cells. Information for this article was gathered from scientific publication databases such as Google Scholar, CyberLeninka, PubMed, as well as from authoritative sources including NCBI, ATCC, the Russian Collection of Vertebrate Cell Cultures, and Cytion. The search encompassed publications issued from 1973 to March 2024.
WASTEWATER TREATMENT FROM PHENOL BY SORPTION WITH CARBON-FIBRE FILTERING MATERIAL
Authors: Ladygina O.V. , Zharova N.V. , Kalaeva S.Z. , Kalinin A.V. , Nasyrova L.A.
Published: November 2024

The article presents methods for reducing the concentration of fine suspended solids in wastewater, and the process of sorption of organic pollutants by carbon-sorbing material is carried out. Spectral analysis of treated water sample was performed, linear infrared spectrum was compiled. Based on the results of the research a block diagram of wastewater treatment from pollutants in the coal tar processing process was proposed. Aims of research: to reduce the concentration of phenol and chemical oxygen demand index in wastewater up to normative parameters permissible for discharge into the Centralised Water Disposal System of settlements and urban districts, to formulate a proposal for wastewater treatment of the process of coal tar processing from pollutants and make a block diagram of treatment. Objectives of the work: to carry out wastewater treatment from fine suspended solids; to consider the sorption method of wastewater treatment from phenols using carbon-fibre material; to conduct wastewater treatment and based on the results of the study to propose a block diagram of wastewater treatment from pollutants. Object of study – wastewater of the process of coal tar processing.
CARBON CAPTURE, USAGE AND STORAGE
Authors: Janakiraman S.
Published: November 2024

Carbon Capture, Usage and Storage – in short CCUS, is not a new term in the current industrial environment. It is being discussed widely at all industrial forums, across all countries, big or small, to control pollution to ensure a healthy and happy life for all. There have been attempts and studies over last 50 years to capture carbon dioxide from the environment to avoid pollution and control global warming scenario. Many technologies have been in use for carbon capture, across the globe, some in large scale and others confined to local areas. It is expensive but very much essential – it is a goal set by WHO/UNO/European Commission – to clean the environment off CO2 gases, use it for alternative purposes or store it for future action. According to International Energy Agency (IEA), we must capture around 100 billion tons of CO2 by 2060 to meet International Global Warming and Energy goals. It is a huge goal and is a very expensive goal to achieve. All big countries who impact the environment in a huge way through their industries shall come forward for a collaboration to prepare a robust plan, pump-in money, monitor and control the processes, to achieve the goal. There is an estimate that US emitted around 5,1 mln t of CO2 in 2019 whereas Global estimate emitted around 33 mln t. These are very huge numbers and hence Global monitoring is very essential to control emission and safe storage and disposal. It is important to understand that Carbon Capture (CC), Carbon Capture and Use (CCU) and Carbon Capture and Storage (CCS) are three different terms. CC, CCU and CCS are combinedly termed as CCUS. CC is to capture carbon from various sources – fuel gas, fossil fuels, petroleum products, flares from refineries and power plants etc. Usage of the captured carbon in the form of carbon dioxide (CO2) is CCU and this is an important long-term vision by any government to ensure it is being used meaningful to avoid negative impact on climate. CCS is storage of the captured carbon quickly so that it does not impact the environment as a greenhouse gas and at the same time, it can be used later. Another term which is frequently used is Net Zero CO2. It is defined as follows: Any CO2 released into the atmosphere from a human activity shall be balanced by an equivalent amount being removed, either by nature-based solutions (including afforestation, reforestation or other changes in land use) or technological solutions that stores CO2 captured directly or indirectly, permanently. Net Zero CO2 is very important, unless this is achieved, CCUS goal cannot be achieved to control climate change. This write-up provides an insight into the following topics:  What is CCUS?  Why is it important?  Steps to CCUS;  CAPEX and OPEX involved.
STUDY OF GROUNDWATER POLLUTION POSSIBILITY DUE TO OIL CONTAMINATION OF SOIL
Authors: Azizova A.E. , Aliyeva Kh.S.
Published: November 2024

The article is devoted to the study of groundwater pollution patterns due to soil contamination with oil. Taking into account the content of pollutants in oil, soil and water, as well as the Raoult’s law, an optimization problem was compiled and solved to identify the optimal relationship between soil density and pollutant concentration in the soil. It was determined that at inverse ratio of these values, the newly introduced safety factor can reach a minimum value, i.e. water pollution can reach a maximum. Therefore, for less groundwater pollution, soil with a higher density should be exposed to a larger volume of oil, and vice versa. Thus, it was determined that the minimum volume of pollutant transferred to groundwater can be achieved if a soil area with a lower density is flooded with a smaller volume of oil, and vice versa.
ROOT ANALYSIS OF LOSS STRUCTURAL INTEGRITY FOR OIL COOLING RADIATORS IN COMPRESSOR STATIONS PUMPING ASSOCIATED PETROLEUM GAS CONTAINING WET H2S
Authors: Valiakhmetov R.I. , Bashirova E.R. , Galyautdinov A.I. , Rakhmangulov R.D. , Kostitsyna I.V. , Khudyakov A.O. , Khusnullin I.M.
Published: November 2024

One of the main problems in the associated petroleum gas treatment is its further beneficial usage. Gases of the end stages of separation require special technical solutions when involving them in the production process due to low pressure. At the same time, gases of the first stages of separation by 70–90 % of the total amount are mainly used in gas processing plants. Gas of the end stages of separation contains components C3+ and higher from 400 to 2000 g/m3 and is a valuable petrochemical raw material. To transporting gas of the end stages of separation, compression is necessary to achieve sufficient pressure. When compressing gases of the end stages of separation, a significant amount of unstable condensate containing hydrocarbons C4–C12 and water is released. In addition, the end-stage gas is saturated with sulfur compounds (H2S and R-SH), which evaporate intensively from the crude oil after its heating from the end-stage separators of oil treatment. The equipment of compressor stations for gas treatment and transportation, as a rule, does not have protection against internal corrosion. Recently, failures of cooling system radiators, pipes of air gas cooling devices made of non-ferrous metal alloys have been recorded. Radiator failures are associated with the loss of their structural integrity. Oil stains without visible flows, cracks or pits appear on the outer surface of the radiator cooling channels, while in the channels of copper alloy channels radiators, clogging of individual channels is often observed over a short period of operation of the compressor station. Understanding the causes of leaks in liquid cooling radiators as part of compressor stations for pumping associated petroleum gas of the end stages of separation is an important aspect for ensuring reliable operation of process equipment and preventing possible emergency situations. The article reflects the results of studies aimed at identifying the causes of radiators structural integrity loss of oil cooling systems in the composition of block compressor stations for compression of associated petroleum gas containing hydrogen sulfide and moisture. Solutions and recommendation to minimize the risks of equipment failures of for compression stations are made.
Utilidad de los portales en línea de ciencia ciudadana para estudios florísticos: Orquídeas de Santa María Yucuhiti, Oaxaca, México
Authors: García-López Ubaldo Edgar , Ruiz-Santiago Magaly , Lagunez-Rivera Luicita , Solano Rodolfo
Published: November 2024

Antecedentes: La belleza de las orquídeas atrae el interés de usuarios de portales de ciencia ciudadana, convirtiéndolos en fuentes adicionales de información para estudiar la biodiversidad. Actualmente iNaturalist registra observaciones para casi 70 % de las especies de orquídeas mexicanas, aquí evaluamos su utilidad para elaborar un listado florístico local con ese grupo de plantas.
Preguntas: ¿la información disponible en iNaturalist permite elaborar un listado florístico local de orquídeas como lo hace un estudio florístico convencional?
Sitio y años de estudio: Observaciones registradas entre 2007 y 2024 en Santa María Yucuhiti, Oaxaca, México.
Métodos: Las observaciones de orquídeas en iNaturalist fueron revisadas y curadas, asignando tipo de vegetación y elevación del sitio de cada registro. El listado resultante se comparó, mediante un índice de riqueza con los de otras regiones de Oaxaca obtenidos mediante estudios florísticos convencionales.
Resultados: La zona estudiada alberga 107 especies de orquídeas, 50 % de ellas endémicas de México. La mayor riqueza se presenta entre 1,500-1,999 m de elevación y el bosque de encino. Acianthera hintonii, Habenaria tetranema y Prosthechea mulasii constituyen nuevos registros para Oaxaca. La zona de estudio presentó el mayor índice de riqueza de orquídeas en comparación con otras regiones del estado.
Conclusiones: La información de iNaturalist permitió elaborar el listado de orquídeas de Santa María Yucuhiti, respaldado por observaciones validadas en la plataforma. Esto y la disponibilidad de fotografías con buena resolución, continuidad temporal en la documentación y exploración de sitios con acceso restringido favorecen la calidad de un listado.
Análisis de los procesos de diálogo de las organizaciones indígenas y sociales durante varios estallidos. Lecciones aprendidas
Authors: Maldonado Ruiz Luis E. , Iturralde Diego A.
Published: November 2024

En este texto nos referimos al diálogo como uno de los componentes de los eventos que han protagonizado el movimiento de las nacionalidades y pueblos indígenas y el gobierno nacional, al menos en los pasados 40 años. Se trata de eventos complejos que actúan sobre la dinámica (la dialéctica) entre movilaización de actores indígenas que demandan medidas que atiendan situaciones o condiciones que los afectan y respuestas gubernamentales que contribuyen a la contención y/o disolución de las movilizaciones.
Educación superior: lo logrado, lo pendiente y perspectivas futuras
Authors:   Universidad Politécnica Salesiana, Juncosa José , Garcés Fernando ,   Universidad Politécnica Salesiana, Yuquilema Julio
Published: November 2024

El objetivo general de la investigación consiste en estimar y rescatar los acuerdos de la Mesa de Educación Superior como posibles instrumentos para el diseño de política pública independientemente del signo político de los gobiernos de turno.
Pueblo afrodescendiente de Guayaquil: autodeterminación y libre determinación
Authors:   Universidad Politécnica Salesiana, Andrade-Martínez César Miguel
Published: November 2024

Desde inicios del siglo XVIII, la lucha por la libertad, justicia, igualdad y los derechos humanos de los afroecuatorianos tomó forma en Latinoamérica a través de las propias organizaciones sociales a las que pertenecían, las mismas que surgieron como pilares fundamentales entre los grupos étnicos. En Ecuador, los afrodescendientes desafiaron la institucionalidad de la esclavitud, convirtiéndose en agentes de cambio por lograr su emancipación y dignidad humana mediante la resistencia armada, la disputa legal y el activismo político (Merizalde et al., 2016).
Ortaokul 5. Sınıf Öğrencilerinin Su Tasarrufu Hakkındaki Görüşlerinin İncelenmesi
Authors: Arslan Emre , Şenel Çoruhlu Tülay
Published: November 2024

Bu araştırmada; ortaokul 5. sınıf öğrencilerinin su tasarrufu hakkındaki görüşlerinin incelenmesi amaçlanmaktadır. Çalışmada, nitel araştırma yaklaşımında kullanılan fenomenoloji yönteminden yararlanılmıştır. Çalışmanın örneklemini 2023-2024 eğitim öğretim yılının I. döneminde Rize ili Merkez ilçesinde bulunan üç ortaokulda 5. sınıfta öğrenim gören toplam 100 öğrenci oluşturmaktadır. Veri toplama aracı olarak araştırmacılar tarafından oluşturulan 6 soruluk açık uçlu anket kullanılmıştır. Araştırma sonucunda; öğrenciler daha çok insanların ve hayvanların suya ihtiyaç duyduğunu belirtmişlerdir. Öğrencilerin su tasarrufuna ilişkin oluşturdukları metaforlar, öğrencilerin su tasarrufunu daha çok yaşam kaynağı olarak gördüklerine işaret etmektedir. 5. sınıf öğrencilerinin su tasarrufuna yönelik yaptıkları faaliyetlerin; suları/muslukları kapatmak, dişleri fırçalarken ve elleri sabunlarken suyu kapatmak, banyoda uzun süreli kalmamak gibi suyun genellikle evsel kullanım boyutuyla ilgili olduğu ve “5. Sınıf Fen Bilimleri” kitabında yer alan su tasarrufu örnekleriyle paralellik gösterdiği tespit edilmiştir. Öğrencilerin büyük bir bölümü suyun yeniden kullanımı için suyun tasarruf edilmesi ve arıtılması gerektiğini ifade etmiştir. Araştırma sonucunda, öğrencilerin su tasarrufuna yönelik farkındalık ve bilgi düzeylerini artırmaya ve gelecekte araştırmacıların su tasarrufuna ilişkin yapacakları çalışmalara yönelik öneriler sunulmuştur.
Türkiye’de Özel Eğitim Alanındaki Yönelimler: Ankara Üniversitesi Eğitim Bilimleri Fakültesi Özel Eğitim Dergisi'nde Yayımlanan Araştırmaların İncelenmesi
Authors: Kocaoğlu Abdulkadir , Yanık Şule , Aktaş Burcu
Published: November 2024

Ankara Üniversitesi Eğitim Bilimleri Fakültesi Özel Eğitim Dergisi (AÜÖED), hem ulusal hem de uluslararası düzeyde saygın akademik yayınlara ev sahipliği yapan bilimsel bir dergidir. Özellikle Türkiye'deki özel eğitim alanında yapılan araştırmalara odaklanan dergi, mevcut teorik ve pratik bilgiye katkı sağlama amacını taşımakta ve bu alandaki güncel gelişmeleri paylaşmayı amaçlamaktadır. Bu noktadan hareketle bu çalışmanın temel amacı, Türkiye'de özel eğitim alanında gerçekleştirilen araştırmaları AÜÖED kapsamında ele almak, eğilimleri, öne çıkan araştırma konularını ve tercih edilen yöntem trendlerini inceleyerek güncel gelişmeler hakkında var olan durumu ortaya koymaktır. Bu amaç doğrultusunda, AÜÖED'de, son on yıl (2014-2023-Eylül) içinde yayımlanan 35 sayıda yer alan toplam 267 araştırma; a) araştırma künyesi, (b) yazar sayıları, (c) katılımcı özellikleri, (d) araştırma yöntem ve desenleri, (e) veri toplama süreci ve (f) konu alanları gibi değişkenler açısından incelenip betimsel olarak analiz edilmiştir. Çalışmada bir konuya farklı perspektiflerden bakma şansı verdiği, araştırmacıya tarama ve raporlaştırma aşamalarında bazı esneklikler sağladığı ve ilgili alanyazını bir araya getirip ayrıntılı bir şekilde betimleme olanağı sunduğu için anlatı derlemesi yöntemi tercih edilmiştir. Analiz sonuçlarına bakıldığında dergiye en fazla Türk araştırmacılar tarafından makale gönderildiği ve yayın sürelerinin ortalamasına bakıldığında en kısa yayın süresinin 106 gün, en uzun yayın süresinin ise 482 gün olduğu görülmüştür. Ayrıca, dergide yayınlanan araştırmaların çoğunlukla nicel araştırma yöntemiyle tasarlandığı ve akademik beceri öğretimi gibi konulara odaklandığı tespit edilmiştir.
Eğitim ve Öğretim Desteklerinin Özel Okullarda Öğretmen İstihdamına Nicel Etkisi
Authors: Atay Selim
Published: November 2024

Türkiye’de özel okulların önemi ve sayısı günden güne artmaktadır. Özel okulların nicel artışı; istihdama katkı sağlaması, vergi gelirlerini arttırması, eğitimde devletin yükünü hafifletmesi ve bağlı birçok sektörü hareketlendirerek bu sektörleri canlı tutması açısından önemlidir. Bu yüzden de devlet, özel okullar için destek politikaları geliştirmektedir. Araştırmanın amacı, devletin özel okullara yaptığı “eğitim ve öğretim desteklerinin” özel okul sayısı ve bu okullarda istihdam edilen öğretmenlerin sayısına ne kadar etki ettiğini ve bu tür desteklerin sektörün geleceği için nasıl bir tesire sahip olduğunu ortaya koymaktır. Araştırma, sektörün bu tür politikalardan ne şekilde etkilendiğini göstermesi, sektörün geleceğine ışık tutması ve sektöre müdahale etme gücüne sahip aktörlere yol göstermesi açısından önemlidir. Araştırmada nicel araştırma yöntemlerinden olan “nedensel karşılaştırma araştırması” yöntemi kullanılmıştır. Veriler Millî Eğitim Bakanlığı Strateji Geliştirme Başkanlığı’nın internet sitesinden alınan nicel, ikincil verilerdir. 2013-2020 yıllarını kapsayan bu veriler ikincil veri analiz yöntemi ile analiz edilmiştir. Araştırmada, özel okullara verilen eğitim ve öğretim desteklerinin (genel ortaöğretim düzeyinde) özel okul sayısına ve bu okullarda istihdam edilen öğretmen sayısının oransal değişimine anlamlı düzeyde etki ettiği bulgusuna ulaşılmıştır. Bu nedenle özel okul yatırımcıları ve yetkili makamların, yatırım ve politika kararlarında bu bulguları göz önünde bulundurması sektörün geleceği açısından önem arz etmektedir.
Exploring Learning Agility in Education: The Effect of Teachers' Learning Agility on Their Readiness for Change and Performance
Authors: Yazıcı Şebnem , Özgenel Mustafa
Published: November 2024

Learning agility is the ability to learn from experiences and to apply these learnings rapidly and successfully in the event of new problems. This research aims to reveal whether the learning agility of teachers in Turkey had an impact on their readiness for change and performance. The explanatory sequential research design was adopted to further clarify the relationship between the variables. The quantitative phase of the study was conducted on a sample group consisting of 1640 teachers working in public schools in Istanbul. Subsequently, data were obtained through semi-structured interviews from 21 teachers working in public schools, and the data were analyzed by content analysis. According to the quantitative research findings, teachers' learning agility positively affects readiness for change and performance. The qualitative findings of the study revealed that teachers developed their learning agility through training, research and experience. It has been determined that teachers with high learning agility are open-minded and ready for change. Teachers achieve speed and flexibility in classroom practices by finding solutions to the problems brought about by change. In addition, unlike the quantitative findings, the qualitative findings revealed that teachers were not sufficiently prepared for change and even showed resistance to change. The findings provide clues about teachers' professional development and educational reform and change initiatives.