bluuebunny/crossref_metadata_2025 huggingface dataset:
On Diophantine equation xb=Dy
Authors: Song Junyan
Published: November 2023

Diophantine equation is an important part of the number theory and it has been widely studied for a long time. There are many studies on solving the integral solutions of Diophantine equations using algebraic methods. This paper uses documentation method, sums up the results of research in different documents of finding the integral solutions of some Diophantine equations in various conditions, especially the utilization of theories on Pell equation, which in the form of xb=Dy. This paper mainly considers the situations when a =2 or a=3, which is a particular type of Diophantine equation. Several of the studies focus on the same equation but using different ways. Also, some subsequent studies on different equations are based on the former theorems provided by other writers and expand these theorems to broader applications. In order to emphasize the theorems obtained by the essays quoted and the methods the authors used, most of the mathematical procedures in their proofs are omitted.
Prediction of short-term passenger flow of subway based on LSTM model
Authors: Hu Jiahan
Published: November 2023

With the continuous development of urban rail transit, the subway is becoming the travel choice for more and more people. And the increase in travel demand also brings about the problem of subway congestion. This paper will use the subway card swipe data of Hangzhou City from January 1st to 20th, 2019, which were counted after data cleaning. With root mean square error (RMSE), mean absolute percentage error (MAPE), coefficient of determination (R^2), and loss values as standards, the long short-term memorys (LSTM) parameters were adjusted. The LSTM model is trained with time and passenger flow data, and the model is used to predict the short-term passenger flow in and out of subway stations. From the prediction results, the LSTM model has a good adaptability to the subway station short-term passenger flow. The trend of the predicted line is the same as the real value, and the difference is also controllable. The short-term passenger flow prediction of subway stations is beneficial to reduce the loss caused by congestion and improve the travel efficiency of residents.
Comparing the RSA and elgamal encryption methods
Authors: Jin Zhan
Published: November 2023

In the realm of computer science, the speed and efficiency of data processing vary depending on the chosen algorithms and programming languages. This article delves into an exploration of which combinations can yield the highest overall performance. Starting with an introduction to the selected algorithms and languages, the underlying mathematical foundations and principles of each algorithm are presented. The research then shifts its focus to the practical aspect translating these algorithms into executable code. Three specific combinations are tested: RSA algorithm implemented in Python, Elgamal algorithm implemented in Python, and RSA algorithm executed in C++. To ensure reliable results, each combination underwent 30 test iterations, with empirical data subsequently gathered. Two primary comparisons were conducted: the first pitting the Python-based RSA against the Python-based Elgamal, and the second contrasting the Python-based RSA with its C++ counterpart. From these tests, a compelling conclusion emerges. When it comes to transmitting encrypted messages and subsequently decrypting them, the RSA algorithm paired with Python emerges as the most optimal choice. Readers will gain a deeper understanding of the strengths and potential limitations of each pairing, equipping them to make more informed decisions in their cryptographic endeavors.
Jet engine blade: Design, material, and manufacturing
Authors: Liu Chenghao
Published: November 2023

The engine is the most important part of an airplane. Since the blades of an engine are a major factor in jet engine performance, the research of engine blades has always been a hot topic in the field of aerospace. This paper summarizes the research status in the field of jet engine blades. As for the design of the jet engine blade, the design of aerofoil and the geometrical structure of the engine blade is introduced. In the material selection of engine blades, titanium alloy materials, and the application of composite materials are introduced. Electrochemical machining (ECM) and additive technology of engine blades are introduced. The differences between them and traditional casting techniques are compared. The comprehensive analysis shows that the research on engine blades is becoming more and more mature, but there are some challenges in further optimization of manufacturing technology and materials. This paper may offer a reference for the design of jet engine blade.
Study on wing-tip device technology
Authors: Wang Zixuan
Published: November 2023

Aircraft wings are designed to make airflow to travel faster on top and slower on bottom. The lift force is generated by the pressure difference between the top and bottom of the wing due to the Bernoulli principle. The downwash also provides lift due to Newtons third law. The wake vortex is the consequence of the production of lift. The spinning turbulent flow at the wing tip creates induced drag, and decreases the total aerodynamic efficiency of the aircraft. A wing tip device is a piece of extension of the wing attached to the wing tip vertically upward or downward. The idea of a wing tip device comes from nature, where engineers reference the wings of different types of birds. The main purpose of this design is to counter and reduce the total drag, allowing aircraft to optimize its aerodynamic performances to reduce fuel consumption. Different wing tip devices based on their structure design have various positive impacts on the aviation industry. In this article, the origin and the applications of wing-tip devices are discussed, offering a reference for the development of wing-tip devices.
Simulating strong gravity-lensing effect using python with 10 source and 20 lensing galaxies
Authors: shi Dongzhe
Published: November 2023

This report explores using Python, a coding language, to create simulated images of a gravitational lens system, using the Hubble Space Telescope (HST) parameters. With Pythons helpful tools, like NumPy for math operations and Astropy for astronomy tasks, we build algorithms that recreate the interactions within our chosen group of galaxies and take into account HSTs unique imaging capabilities. Our method combines theory of gravitational lensing with practical coding strategies to make simulations show these complex light-bending interactions. The report walks through how the algorithms are developed with specific scientific simulation models like Sersic profile and point-spread function (PSF), showcasing the important role of computer simulations in deepening our understanding of space. In this report, I will introduce how we can use python code to create simulation images of a gravitational lens system. This system involves with 10 source galaxies ,20 lensing galaxies and with consideration of dark matter halo.
Study on application of winglets in drones
Authors: Li Jiajun
Published: November 2023

With the rapid development of drone technology, methods to improve drone performance have emerged endlessly. Reducing air resistance can significantly improve drones fight performance. The winglet is used to control the turbulence and vortices. The widespread application of winglets in the field of military and civil aviation has enabled winglets to be applied to drones to improve flight range and economic efficiency. As different winglets have different impacts on drones flight performance, this article focuses on the influence of different winglets on enhancing lift and reducing resistance of small civilian drones. In detail, three representative winglets are taken as the specific research objects, including the fusion winglet, the double fork scimitar winglets, and wingtip fence. The aerodynamic characteristics and the structural designs are comprehensively introduced. The importance of winglets in improving aircraft performance, energy saving and environmental protection is briefly explained. This article may offer a reference for the design of drones.
The application of fractal theory in real-life
Authors: Xie Yufei
Published: November 2023

As a relatively new and mathematics-related discipline, fractal has had a certain influence on the development of many aspects of today's society. At the same time, the science of fractal geometry to explore and study the practical use of fractal properties and fractal geometry is called a fractal theory. What's more, the emergence of fractal theory has promoted the development of various fields, provided new solutions and methods for some problems, provided a both logical and rigorous reference basis for some decisions, and also facilitated people's lives. By observing actual life and consulting some relevant literature, this article discusses the application of fractal theory in real life mainly from the aesthetics, health, and safety, respectively from three angles which are aesthetic art, medical and health, and highway traffic, such as pattern, numerical reference, material selection and so on, to understand the value of fractal theory in academic development and life application.
Design and implementation of intersection traffic light control for optimal traffic flow
Authors: Chen Haoyu
Published: November 2023

This paper delves into the pressing issue of enhancing urban transportation efficiency and introduces a design for a traffic light system tailored for intersections. Rooted in the foundations of digital logic circuits, the design seeks to masterfully regulate traffic flow using a sophisticated state-switching algorithm. Both the principle and intricate design of this system are thoroughly discussed in this paper, accompanied by a comprehensive circuit diagram. To tackle the pervasive challenge of traffic congestion, this document outlines several avant-garde techniques for traffic flow detection. One notable method employs infrared light detection, utilizing a light receiving tube to capture real-time vehicular movement. Another method harnesses the video detection approach, relying on pixel occupancy ratio computations to gauge traffic density. By adopting these techniques, urban traffic administrators can gain a deeper insight into the nuances of traffic flow. This enriched understanding paves the way for more informed adjustments to the traffic signal cycling system, promising to mitigate congestion and elevate overall traffic efficiency.
Advantages of FINFET over traditional CMOS: Reasons and implications
Authors: Shan Tianchang
Published: November 2023

In the relentless march of technological advancement, the semiconductor industry remains at the forefront of innovation. Among the myriad breakthroughs, FinFET technology stands out as a recent focal point in research. Serving as an avant-garde semiconductor manufacturing process, FinFET plays a pivotal role in enhancing chip performance, diminishing power consumption, and minimizing component size. At its core, FinFET is a distinct type of field-effect transistor (FET) that utilizes a thin silicon fin as the conducting channel. This structure has revolutionized the way transistors are designed, offering remarkable control over the current flow through the channel. This control is achieved by wrapping a gate material around the three visible sides of the fin, which provides superior switching behavior and leakage reduction. Beyond its foundational principles, FinFETs inherent characteristics offer numerous advantages. For instance, the technology paves the way for more densely packed transistors, enabling more powerful yet compact integrated circuits. Moreover, its innovative design leads to more energy-efficient chips, which are crucial for todays demanding computing and electronic environments.
Towards a sustainable waste management in Cameroon
Authors: Bienvenu Abanda Well Victorien
Published: November 2023

The management of waste is a challenge of the current day. The current article intempts to propose solutions to a sustainable management of wastes in Cameroon. After a concise description of the context and a well definition of the scope. It comes out that efforts should be done to intensify awareness, the development of recycling units such as biogas or compost.
Joint detection algorithm for multiple cognitive users in spectrum sensing
Authors: Meng Fanfei , Wang Yuxin , Zhang Lele , Zhao Yingxin
Published: November 2023

Spectrum sensing technology is a crucial aspect of modern communication technology, serving as one of the essential techniques for efficiently utilizing scarce information resources in tight frequency bands. This paper first introduces three common logical circuit decision criteria in hard decisions and analyzes their decision rigor. Building upon hard decisions, the paper further introduces a method for multi-user spectrum sensing based on soft decisions. Then the paper simulates the false alarm probability and detection probability curves corresponding to the three criteria. The simulated results of multi-user collaborative sensing indicate that the simulation process significantly reduces false alarm probability and enhances detection probability. This approach effectively detects spectrum resources unoccupied during idle periods, leveraging the concept of time-division multiplexing and rationalizing the redistribution of information resources. The entire computation process relies on the calculation principles of power spectral density in communication theory, involving threshold decision detection for noise power and the sum of noise and signal power. It provides a secondary decision detection, reflecting the perceptual decision performance of logical detection methods with relative accuracy.
The Effects of Blended Learning Using Virtual Reality Simulation in Pediatrics-adolescent Nursing Clinical Practice
Authors: Han Seok-Young
Published: November 2023

This study was to compare the effects of blended learning that integrates child-adolescent nursing clinical practice and virtual reality simulation. The aim of this study was to evaluate the effectiveness of blended learning in parallel clinical practice of child-adolescent nursing and virtual reality simulation of child-adolescent nursing by comparison of critical thinking, problem-solving processes, and clinical performance in both education groups before and after the educational intervention. The participants were 48 nursing college students. The experimental group (n=22) exposed a blended learning using virtual reality simulation, combining child-adolescent nursing clinical practice education, while the control group (n=26) received only child-adolescent nursing clinical practice curriculum course. The data collection period was from March 8 to November 26, 2021. The general characteristics of subject’s were analyzed by number, percentage, mean and standard deviation. And clinical practice fused with virtual reality simulation, that is, homogeneity verification of the blended learning education group was analyzed by x2 test and independent t-test. Whether there is a differences between pretest and posttest critical thinking tendency, problem-solving process, and clinical performance ability of the blended learning and the clinical practice education group was analyzed by independent t-test. The pretest & posttest results of each group showed statistically significant improvements in critical thinking, problem-solving processes, and clinical performance. In a comparison of the results of the two groups, the only statistically significant difference was found for critical thinking. Furthermore blended learning, combining a v-sim and a clinical nursing practice, into the nursing curriculum may contribute to the further development of nursing education.
Artificial Intelligence (AI) Techniques for Intelligent Control Systems in Mechanical Engineering
Authors: Dosari Faleh Hasyyan Mohammed Al , Abouellail Sherif Ibrahim Al Desouky
Published: November 2023

In mechanical engineering, control systems are essential to the dependable and effective operation of mechanical equipment and processes. The advantages of integrating AI into control systems include energy savings, greater product quality, increased process effectiveness, and adaptive and predictive control. Various AI approaches, including machine learning methods like decision trees, neural networks, and support vector machines, are extensively studied for system identification, modelling, and adaptive control. AI techniques enhance these applications' control performance, energy efficiency, problem discovery, and maintenance. The methodology uses metaheuristic techniques for creating intelligent control systems, such as simulated annealing, ant colony optimisation, and harmony search. With the help of these algorithms, the solution space is efficiently searched for ideal control strategies while avoiding local optima. The importance of evaluating the learned control algorithm on a different dataset or running experiments to determine its performance is also underlined. Performance assessment benchmarks for tracking error, settling time, overshoot, and energy efficiency are provided in the results section. This paper investigates the use of AI techniques in mechanical engineering intelligent control systems. The paper also offers areas for additional research in intelligent control systems and identifies research directions for future advancements.
BURNOUT EM PROFISSIONAIS DE SAÚDE BRASILEIROS NA PANDEMIA DA COVID-19
Authors: De Souza Ana Kainna , Bezerra Tavares André Luís , Sombra Neto Luis Lopes
Published: November 2023

Analisar as evidências científicas sobre Síndrome de Burnout em profissionais da saúde no Brasil durante a pandemia da COVID-19. Revisão integrativa de forma pareada seguindo o instrumento PRISMA, identificando 2.096 artigos. Após a exclusão dos duplicados e critérios de exclusão restaram oito  que foram lidos integralmente, após a leitura ainda foram excluídos quatro artigos, restando quatro para amostra da revisão. Prevalência de burnout entre 31,6% e 65,5% dos entrevistados. Os estudos mostram vulnerabilidades na saúde mental dos profissionais, preocupações com autocontaminação, transmissão da doença e perda de algum colega de trabalho ou familiar, relacionadas a sobrecarga física e mental e a alta jornada de trabalho que resulta em níveis elevados de esgotamento profissional. Apesar da escassez de estudos específicos publicados, os resultados apontam para necessidade de maior atenção ao adoecimento mental dos profissionais de saúde no Brasil, principalmente no contexto de uma pandemia.
IMPLANTAÇÃO DO SISTEMA DE GESTÃO DA QUALIDADE
Authors: Alves Mangueira Carlos Éverton , Calixto Crispim Sarah , Ferreira Lima Herundina , Pereira de Vasconcelos Marina , Lucena Gonçalves Medina Ligia
Published: November 2023

As ações de Vigilância Sanitária (VISA) no Brasil têm papel importante, sobretudo, para garantir à população a qualidade de produtos comercializados no mercado nacional e internacional, pois previnem riscos à saúde e intervêm em problemas sanitários como os decorrentes da prestação de serviços de saúde. Objetivo: descrever o relato da experiência de implantação do Sistema de Gestão de Qualidade em Vigilância Sanitária na cidade de Juazeiro do Norte-CE. Método: Trata-se de estudo qualitativo, descritivo, do tipo relato de experiência. Resultado: O diagnóstico situacional demonstrou que eram realizadas as ações de vigilância sanitária pactuadas pela Comissão Intergestores Tripartite (CIT), contudo não havia um protocolo descritivo para padronizar os procedimentos de vigilância sanitária. Considerações finais: A sistemática de implantação possibilitou um melhor debate e comunicação junto aos gestores diretos e aos profissionais de vigilância sanitária sobre as atividades e os processos de vigilância sanitária.
AVALIAÇÃO DA QUALIDADE DA ÁGUA DO SISTEMA DE ABASTECIMENTO DE UM MUNICÍPIO CEARENSE
Authors: Pedrosa Silva Iris , Pereira de Vasconcelos Marina , Da Silva Costa Tereza Emanuelle
Published: November 2023

Analisar os padrões microbiológicos e físico-químicos das análises das amostras coletadas dos Sistemas de Abastecimento de Água - SAA de um município do cearense. Realizou-se uma investigação retrospectiva descritiva, quantitativa, no período de janeiro de 2018 a dezembro de 2022, dos resultados das análises realizadas pelo Laboratório Central de Saúde Pública do Ceará (LACEN-CE), unidade de Juazeiro do Norte-CE, quanto aos padrões microbiológicos e físico-químicos dos sistemas de abastecimento de um município cearense, utilizando-se como instrumento de coleta de dados o Sistema de Informação de Vigilância da Qualidade da Água para Consumo Humano (SISAGUA). As variáveis estudadas foram Coliformes Totais (CT), Escherichia coli e turbidez, seguindo os padrões de potabilidade preconizados pela Portaria de Consolidação nº 5/2017 MS.  Foi constatado que as variáveis analisadas apresentaram amostras fora dos padrões permitidos durante o período avaliado, em pelo menos um dos anos que compõem a série histórica estudada. O padrão Coliformes Totais apresentou o maior percentual e a maior frequência anual de amostras em inconformidade com a portaria mencionada. Os resultados do estudo sugerem que são necessárias ações imediatas e efetivas para melhorar a execução do monitoramento e da qualidade da água para consumo humano no município de realização do estudo, a fim de garantir a saúde da população.
DIAGNÓSTICO POR IMAGEM DO ANEURISMA DE ARTÉRIA CEREBRAL: UMA REVISÃO INTEGRATIVA
Authors: Da Silva Patrícia Borges , Da Silva Helayne Francisca Miranda , Coelho Vitor Gabriel de Almeida , Melo Mirelly Lima , Nascimento Carlos André Lima , Fernandes Pâmella Gomes , Gonçalves Thays de Carvalho , Silva Ana Nicole Coelho , Do Nascimento Otávio Kauã Melo , De Sousa Jaqueline Cristina Neves , Monteiro Joveliane de Melo
Published: November 2023

Objetivo: Este trabalho visa identificar na literatura evidências científicas sobre a abordagens das formas de diagnóstico por imagem no aneurisma cerebral. Métodos: Trata-se de uma revisão integrativa de literatura, na qual foram analisados artigos, utilizando-se de bases de dados como SciELO, PubMed e Google acadêmico. Para tanto, foram utilizados os descritores “Aneurisma cerebral”, “Diagnóstico”, “Angiotomografia”, “Angiografia Cerebral ” e “Acidente vascular cerebral”.  Resultados/Discussão: A angiografia permanece como método “padrão ouro” para avaliar aneurismas cerebrais. Embora haja outros métodos diagnósticos disponíveis, são considerados estudos complementares e não podem substituir a angiografia. A angiotomografia, um método mais recente, oferece vantagens como rapidez, baixa invasividade, menor risco de complicações e custo reduzido. Além disso, fornece detalhes que não são observados na angiografia, podendo diminuir os riscos associados à patologia. Inicialmente os casos de hemorragia subaracnóidea são investigados pela tomografia de crânio, quando há suspeita de aneurismas é realizada a angiotomografia ou a angiorressonância fornecendo, em muitos casos, informações para o tratamento sem depender exclusivamente da angiografia. Conclusão: Os aneurismas são dilatações que crescem silenciosamente na parede da artéria e geralmente não causam sintomas até romperem, podendo levar a sequelas graves ou a morte. O diagnóstico é feito por meio de exames de imagem como tomografia do crânio (TC), angiotomografia, ressonância magnética (RM) e angiografia cerebral (padrão ouro no diagnóstico).  Ressalta-se a importância do diagnóstico preciso, visando a redução da mortalidade e morbidade.
A PREVALÊNCIA DA DOENÇA CELÍACA NO RIO GRANDE DO SUL: SUBDIAGNÓSTICO
Authors: Dutra Bruna Lempek Trindade , Rocha Gabriel Marcelo Ribeiro , Munieweg Gustavo Timm , Altenhofen Hayana Luiza Ruzza , Monteiro Luciane Maria Alves
Published: November 2023

O objetivo deste trabalho consiste em avaliar o possível subdiagnóstico de Doença Celíaca no estado do Rio Grande do Sul. Para fins de análise comparativa, foram utilizados dados mundiais, que demonstraram uma prevalência de Doença Celíaca de cerca de 1%, e dados do estado do Rio Grande do Sul, que por sua vez demonstraram resultados de prevalência de cerca de 0,2%, reiterando que, ao compararmos a tendência mundial, há um possível subdiagnóstico no estado em questão. Sendo assim, o intuito prático do presente trabalho consiste em reforçar a importância de atentar-se para os sinais e sintomas da Doença Celíaca, de modo a reduzir seu possível subdiagnóstico, aumentando, por consequência, sua taxa de controle, o que evitaria futuras complicações físicas e psicológicas aos seus portadores.
O SERVIÇO SOCIAL E O ENVELHECIMENTO POPULACIONAL NO BRASIL
Authors: Rabelo Ana Paula dos Santos Martins , Miranda Jussara Souza , Silva Lidiani Vanessa
Published: November 2023

O envelhecimento populacional é um dos maiores desafios da sociedade contemporânea. Como as pessoas estão tendo maior longevidade, a sociedade terá que adaptar e aprender a lidar com esse envelhecimento. Segundo dado do Banco Mundial estima-se que até 2020 o número de pessoas atendidas por casa de repousos no Brasil dobrará e, em 2040, será cinco vezes maior que em 2008. Nesse sentido, o desafio do Serviço Social perante a população idosa consiste na construção de uma sociedade em que os idosos tenham um lugar ativo e proativo. O processo de envelhecimento sempre será uma temática presente na evolução da sociedade. Objetivou-se buscar, mapear na literatura o que tem sido produzido, nos últimos 10 anos, sobre as contribuições do Serviço Social em relação ao envelhecimento populacional no Brasil. Trata-se de uma Revisão Integrativa da Literatura realizada nas bases de dados: CAPES, BVS e SCIELO, no período compreendido entre 2011 e 2021. A busca inicial resultou em 170 artigos, sendo 122 na CAPES, 36 na BVS e 12 na SCIELO. A amostra final da revisão obteve cinco artigos, sendo zero da CAPES, cinco da BVS e zero da Scielo. A análise e interpretação dos resultados, assim como, a apresentação da revisão, realizaram-se de forma descritiva, considerando os níveis de evidência.
MUHAFAZAKÂR İŞ ADAMLARININ VADELİ SATIŞLARINDA MÜŞTERİNİN ÖDEMEYİ GECİKTİRMESİ DURUMUNDAKİ UYGULAMALARI
Authors: Ülev Salih , Eminler Osman
Published: November 2023

Enflasyonun yüksek olduğu dönemlerde, vadeli satışlardan doğan borcun zamanında ödenmemesi durumunda müşteri ile satıcı arasında birtakım problemler oluşabilmektedir. Bu çalışmanın amacı, ticaret erbabının yaptığı vadeli satışlarda, vade tarihinde ödenmeyen alacakları tahsil ederken nasıl bir uygulama yaptığını keşfetmek ve taraflar arasında hakkaniyeti sağlamaya yönelik pratik öneriler getirmektir. Böylece hem alıcı hem de satıcının haksızlığa uğramayacağı bir uygulamanın vâki olup olmadığı tespit edilecek, daha adil bir uygulamanın gerçekleştirilebilmesi için öneriler getirilecektir. Bu araştırmada nitel araştırma yöntemi benimsenmiştir. Araştırmanın çalışma grubunu Sakarya’da ticari faaliyette bulunan MÜSİAD üyesi 13 iş adamı oluşturmaktadır. Çalışma grubunda toptan, perakende ve her iki türlü satış yapan iş adamları bulunmaktadır. İş adamlarının vadeli satışlarda gecikme yaşanması durumunda çoğunlukla satım bedeli üzerine bir ekleme yapmadıkları, aynı tutarda parayı tahsil ettikleri görülmüştür. İş adamlarının kendi aralarındaki borç ilişkilerinde uzun süre gecikme yaşandığında ise kimi zaman altına endeksleme uygulamasına gittikleri görülmüştür. Çalışma, Türk lirası üzerinden yapılan ve gerek vadeli satışlar gerekse karz akdinden doğan borç ilişkilerinde her iki tarafın zarara uğramaması için belirlenecek en iyi kriterin enflasyon oranı olduğunu iddia etmektedir.
Patterns and Themes in Canadian Picture Books Published in 2017: A Content Analysis of 132 Titles Using Dresang’s Lens of Radical Change
Authors: Brenna Beverley , Khan Irteqa , Morstad Miranda
Published: November 2023

This comprehensive examination of 132 picture books originally published by Canadian publishers in 2017, and written and/or illustrated by at least one creator living in Canada, offers qualitative and quantitative findings that demonstrate patterns and themes in relation to number of titles, authors, illustrators, characters, genres, audiences, and readability characteristics, while addressing particular elements of Dresang’s (1999) notion of Radical Change. Books were identified from multiple sources with results compared to a previous study (Author 3), demonstrating a marginal increase of titles since 2015 where 120 books were identified, and a continued increase from 2005 where 57 books were identified. Of particular note in the current sample were the 13 books created by Indigenous authors and/or illustrators and presenting Canadian Indigenous content and perspectives, calculated at 9.8 % of the study sample, compared to previous results where books by Indigenous authors and/or illustrators comprised 3.5 % of the sample in 2005 and 10% in 2015. These findings, and other patterns, themes and possible trends, are suggested as underpinnings for future research involving further changes in the field of Canadian children’s literature in education as well as further research into reader response regarding contemporary titles. While this paper does address aspects of diversity present in this study sample, a second article disseminates detailed findings related to representations of ethnicity.
Exploring Instructional Strategies in an Indigenous Education Course in Initial Teacher Education
Authors: Oskineegish Melissa
Published: November 2023

This paper explores the different approaches and instructional strategies of five instructors who have taught a mandatory Aboriginal Education course in a Canadian teacher education program. The findings are drawn from a broader study that examined the impact of self-reflective practices in Indigenous Education. Through semi-structured interviews, five course instructors shared what they believed to be meaningful instructional strategies in the course. Although each instructor shared their personal approach to the course, the four broad themes of story, land, art, and reflection emerged from their examples. These are discussed in relation to what is reported in the literature about the approaches and instructional strategies of Indigenous Education course instructors (Aveling, 2006; Dion, 2007; McInnes, 2017); this expands the conversation on meaningful pedagogies for Indigenous Education courses in initial teacher education. Keywords: Indigenous Education; teacher education; instructional strategies; pedagogical practices. Cet article explore les différentes approches et stratégies pédagogiques de cinq instructeurs qui ont enseigné un cours obligatoire d’éducation autochtone dans le cadre d’un programme de formation des enseignants au Canada. Les résultats sont tirés d’une étude plus vaste ayant porté sur l’impact des pratiques de réflexion personnelle en éducation autochtone. Cinq instructeurs ont partagé, par des entrevues semi-structurées, ce qu’ils croyaient être des stratégies pédagogiques significatives pour le cours. Même si chaque instructeur a partagé son approche personnelle au cours, quatre grands thèmes, soit le récit, le territoire, l’art et la réflexion, sont tout de même ressortis de leurs exemples. Ces thèmes font l’objet d’une discussion portant sur les approches et les stratégies pédagogiques des instructeurs d’éducation autochtone qui sont décrites dans la littérature (Aveling, 2006; Dion, 2007; McInnes, 2017). Cette discussion vient donc élargir la conversation sur les pédagogies significatives pour les cours d’éducation autochtone offerts dans le cadre de la formation des enseignants. Mots clés : éducation autochtone; formation des enseignants; stratégies pédagogiques; pratiques pédagogiques
Reconciliation of Philosophical Perspectives to Address Autoethnographic Methodological Concerns
Authors: Sibbald Timothy , Handford Victoria , Kornelsen Lloyd
Published: November 2023

An instance of editorial work was found to address methodological issues at the juncture of autoethnography and narrative inquiry. The particular case is reported because it addresses the conceptual basis of known methodological issues. The case involved interactions between a chapter author and editors of a book as well as between the editors. Although the chapter was autoethnographic as initially submitted, through the use of research-oriented open-ended questioning, the editors engaged with the author causing the author to gain a deeper insight and richer narrative regarding his own experience. The result bridges the gap between autoethnography and narrative inquiry. Interactions between the editors were directed at providing constructive support while leaving ownership of the narrative with the author. The process has features overlapping and distinct from duoethnography. An empirical explanation is proposed through the reconciliation of philosophical stances of the author and editors. Key words: Autoethnography, narrative inquiry, emergent design, duoethnography, editorial methodology Un exemple de travail éditorial a permis d’aborder des questions méthodologiques à la jonction de l’autoethnographie et de l’enquête narrative. Le cas particulier à l’étude porte sur la base conceptuelle de questions méthodologiques connues. Le cas implique des interactions entre l’auteur d’un chapitre et les éditeurs d’un livre, ainsi que des interactions entre les éditeurs. Bien que le chapitre ait été autoethnographique lors de la soumission initiale, l’emploi par les éditeurs de questions ouvertes axées sur la recherche et communiquées à l’auteur lui a permis d’arriver à des connaissances approfondies et à un récit enrichi relativement à ses propres expériences. Les résultats jettent un pont entre l’autoethnographie et l’enquête narrative. Les interactions entre les éditeurs visaient à apporter un appui constructif tout en permettant à l’auteur de conserver son récit. Certaines caractéristiques du processus chevauchent la duoethnographie; d’autres s’en distinguent. Nous proposons une explication empirique née de la réconciliation des positions philosophiques de l’auteur et des éditeurs. Mots clés: autoethnographie, enquête narrative, modèle émergent, duoethnographie, méthodologie éditoriale
Neoliberal Sleight of Hand in a University Strategic Plan: Weaponized Sustainability, Strategic Absences, and Magic Time
Authors: Kouritzin Sandra G. , Nakagawa Satoru , Kolomic Erica , Ellis Taylor F.
Published: November 2023

This research analyzed the University of Manitoba (UofM) Strategic Plan to both quantify the occurrence of specific keywords and make inferences about the purpose, messages, and effects being communicated by those keywords. In the first section of this paper, we provide an overview of the historical development and purpose of the neoliberal university. Second, we engage with content and critical discourse analysis to understand how academic work and academic identities are established by the strategic plan, a document that few faculty members consult regularly, and fewer still have a hand in developing. The foundational ideals of the UofM, cited at the beginning of the Strategic Plan are tracked through the document, and keywords as determined by frequency count are then similarly tracked. The findings reveal that most of the foundational ideals are not well-represented in the strategic plan; others, like sustainability, are euphemized. Keywords related to increasing workload are found over 60 times in the document, all in the context of decreased funding. We conclude that the strategic plan is a clear mandate for more to be completed with less. We refer to this aspect of workload creep as the need for “magic time.” Key words: workload creep, magic time, neoliberalism, higher education, keyword analysis. Cette recherche a analysé le plan stratégique de l'Université du Manitoba afin de quantifier l'occurrence de mots-clés spécifiques et de faire des inférences sur l'objectif, les messages et les effets communiqués par ces mots-clés. Dans la première section de ce document, nous présentons un aperçu du développement historique et de l'objectif de l'université néolibérale. Ensuite, nous nous engageons dans une analyse du contenu et du discours critique afin de comprendre l’établissement du travail et des identités universitaires par le plan stratégique, un document que peu de membres du corps enseignant consultent régulièrement, et à l'élaboration duquel encore moins participent. La présence des idéaux fondateurs de l'Université du Manitoba, cités au début du plan stratégique, a été suivie tout au long du document et l’emploi des mots-clés, déterminés par le comptage de fréquence, a ensuite été suivi de la même manière. Les résultats révèlent que la plupart des idéaux fondateurs ne sont pas bien représentés dans le plan stratégique ; d'autres, comme la durabilité, sont euphémisés. Les mots-clés liés à l'augmentation de la charge de travail se retrouvent plus de 60 fois dans le document, tous dans le contexte d'une diminution du financement. Nous en concluons que le plan stratégique est un mandat clair pour que l'on fasse plus avec moins. Nous appelons cet aspect de l'augmentation de la charge de travail le besoin de « temps magique ». Mots-clés: progression de la charge de travail, temps magique, néolibéralisme, enseignement supérieur, analyse des mots clés
Welcome to the first issue of Transformative Social Work: A special issue on the impacts of the COVID-19 pandemic
Authors: Drolet Julie L. , Nicholas David B.
Published: November 2023

Welcome to the inaugural issue of Transformative Social Work, a new journal developed by an international editorial team and hosted by the University of Calgary, Canada.
In this Special Issue, we reflect on the COVID-19 pandemic as it relates to social work. We address considerations such as heightened inequities, experiences and recommendations that have emerged at this unique juncture in history across the world.
Articles in this issue amplify COVID-19 considerations for practice, professional support, social work education, community development, advocacy, and the importance of addressing ongoing and emerging community and societal inequities, with a focus on nurturing well-being and equity. Articles offer reflection on individual, community and population experiences, including substantial shifts, societal chasms and considerations for social work and society in moving forward. We are grateful to article authors who have provided important reflections, learning and recommendations in moving forward.
Amplifying the breadth of experiences and perspectives as we emerge from this local and global experience is important both to document this experience relative to social work, and to critically consider steps for moving forward.
Development of effective drilling fluid compositions to improve the quality of well drilling in the Caspian deep of Kazakhstan
Authors:   OilGasScientificResearchProject Institute, SOCAR, Kazimov E. A. , Islamov Kh. M. ,   Kazakh Research Geological Exploration Oil Institute LLP, Atyrau, Republic of Kazakhstan
Published: November 2023

Theoretical prerequisites for the development of a complex action reagent, in order to stabilize drilling fluids and the best results in combining the properties of reducing the plastic viscosity index and the filtration index of drilling fluids, are shown by samples of Rodopol-23P and pitchy carbolignosulfonate KLSP. A corresponding scheme for obtaining a reagent of complex action has been developed. Keywords: development of compoundings for drill mud solutions; chemical reagents; stabilizers; improvement of technological properties; drill mud solutions.
Dissolved gas amount influence on oil viscosity
Authors:   Institute of Oil and Gas, Ufa State Oil Technical University (branch in Oktyabrsky), Russia, Mingulov I. Sh. , Valeev M. D. ,   JSC RDE «VM Sistema», Kumlekul, Russia
Published: November 2023

The article presents the results of a study of oil gas saturation influence on its viscosity. Studies of the dissolved gas effect on the oil viscosity in a wide range of gas and water content changes in reservoir products are presented. According to some studies, the dissolved gas presence in oil can significantly reduce its viscosity. Based on a comparative analysis of the oil viscosity under standard conditions, a statistical relationship between the viscosity of gas-saturated oil and its standard value, depending on the gas saturation, was obtained. A method for gas-saturated water-oil emulsion viscosity calculating is proposed on the example of reservoir oils of the Arlan oil field based on preliminary measurement of the viscosity of degassed liquid and gas-saturated oil at 20° C, the residual amount of dissolved gas in oil determination by the degassing curve of this oil. Keywords: dissolved gas; degassed oil viscosity; water content; oil-water emulsion.
Molecular mass characteristics of poly(methyl methacrylate) obtained by solution polymerization in the presence of ferrocene
Authors:   Saint Petersburg Mining University, Saint Petersburg, Russia, Puzin Yu. I. , Puzin P. Yu. ,   Ufa State Petroleum Technological University, Ufa, Russia
Published: November 2023

The study of the effect of ferrocene on the molecular weight and polydispersity of poly(methyl methacrylate) obtained by polymerization in solvents differing in polarity (benzene, toluene, ethyl acetate) was carried out. It is shown that both the mass and the number average molecular weights of poly(methyl methacrylate) decrease, and the polydispersity is preserved. It has been found that during the process in the most polar ethyl acetate, the effect of ferrocene on the molecular weight is most significant. Keywords: methyl methacrylate; ferrocene; solution polymerization; solvent polarity.
Mineral fillers for polymer nanocomposites
Authors:   Ufa State Petroleum Technological University, Ufa, Russia, Mazitova A. K. , Zaripov I. I. ,   Ufa State Petroleum Technological University, Ufa, Russia, Aminova G. K. ,   Ufa State Petroleum Technological University, Ufa, Russia
Published: November 2023

Traditional polymer composite materials consist of two or more phases with a clear interfacial boundary, which determines the physical and mechanical properties of plastics. The properties of nanocomposites depend on many parameters: the chemical nature of the polymer, the functionality of the modifier, the methods for obtaining the composite, and the modification of the layered silicate. Silicates are the most numerous class of minerals. They account for approximately one third of the mineral species known in nature, tk. are the most important rock-forming minerals. The use of layered silicates makes it possible to achieve a significant improvement in a number of properties of nanocomposites: a decrease in density, an improvement in the fire resistance of materials, an increase in the surface quality of products, a decrease in abrasive wear of equipment in the production of products from nanocomposites, and an increase in the recyclability of materials. Nano-reinforcement increases, among other things, rigidity and strength, and also significantly reduces the technological shrinkage of the material and improves dimensional stability. Nanostructured surfaces of such materials due to the special relief have very low adhesion energies, thus, the products acquire dirt-repellent properties, their appearance and consumer qualities are improved. In addition, the permeability of the material to gases, vapors, and odors is significantly reduced. Keywords: fillers; polymer nanocomposites; minerals.
A new concept of the dynamic systems imitation-modeling: theory and application
Authors:   «OilGasScientificResearchProject» Institute, SOCAR, Baku, Azerbaijan, Jamalbayov M. A. , Valiyev N. A. ,   SOCAR, Baku, Azerbaijan
Published: November 2023

A new concept of imitation-modeling of dynamic systems is being developed. The basic idea and terms of the concept, the principles of creating an imitation-modeling of a physical process based on interconnected objects are presented. The proposed concept is applied to modeling the process of developing a volatile oil reservoir operated by a well equipped with a submersible rodless pump in the «pumpwell-reservoir» system. Algorithms have been developed to optimize the pump suspension depth and the duration of the waiting and pumping periods in continuous and periodic modes. Keywords: integral modeling; computer simulation; imitation-modeling; volatile oil; submersible-pump; pump-well-reservoir system.
Stress-strain state and load ability of compressed pipe-concrete elements
Authors:   Azerbaijan University of Architecture and Construction, Baku, Azerbaijan, Gadjiyev М. А. , Guseynov I. G. ,   «OilGasScientificResearchProject» Institute, SOCAR, Baku, Azerbaijan, Gadjiyeva U. М. ,   Azerbaijan University of Architecture and Construction, Baku, Azerbaijan
Published: November 2023

In the article are presented the results of stress-strain state and the bearing capacity of compression pipe-concrete elements studies. The studies were carried by using a fractional-rational diagram of relationship between stress and strain proposed in the Eurocode for a compressed concrete core inside a pipe and a symmetrical two-line diagram with limited area of fluidity for any values of an arbitrary flexibility of element and eccentricity of compressive force. On the carried research basis has been developed an effective numerical technique for determining the stress-strain state and the bearing capacity of compressed pipe-concrete elements. In calculation technique constructing, the task solution is reduced to system of nonlinear algebraic equations solving, relative to the deformation level in the most stressed section of the compressed concrete core section and the position of the neutral axis in this section. The efficiency of the proposed calculation method has been verified by numerous numerical experiments. It is shown that depending on the element's flexibility and the compressive force's eccentricity, at the moment of bearing capacity loss, the operation of the steel pipe can be both elastic and elasticplastic, and this is determined only by calculations using the proposed general method. Keywords: concrete; steel pipe; «load-deflection» graph; deformation; stress; deflection; stress-strain state; bearing capacity; eccentricity.
Laboratory analysis of self-healing cement composition based on calcium lactate and bacteria
Authors:   OilGasScientificResearchProject Institute, SOCAR, Veliyev E. F. ,   Composite Materials Scientific Research Center, Azerbaijan Sate University of Economics (UNEC), Baku, Azerbaijan, Aliyeva G. V. ,   Abraj Energy Services S.A.O.C, Muscat, Oman
Published: November 2023

The research aims to evaluate the feasibility of using bacteria-based self-healing concrete using Portland cement and assess the effect of temperature on its performance. The results showed that the inclusion of calcium lactate and bacteria in the mixture accelerates the gain in compressive strength, but after 28 days of curing, the healing agent has no impact on the overall compressive strength value of the mixture. The crack width distribution analysis revealed an inverse relationship between crack width and self-healed area, with wider cracks having lower self-healing rates. Most of the healing occurs within 15 days, with only a small fraction healing between day 15 and 60 days. The study also showed that low temperatures do not produce self-healing in tested samples, and 25°C increases the self-healed area for all crack widths. Finally, chromatography tests of submerged water reveal that reaction to seal the cracks takes calcium from some external source. Keywords: self-healing cement; carbon emission; bacteria; calcium lactate; Portland cement.