bluuebunny/crossref_metadata_2025 huggingface dataset:
Is didactic training essential for professors? The strategies applied by management professors in the classroom
Authors: Ceni Jéssica Cristina , Bezerra-de-Souza Indira Gandhi , Fernandes Jane Mendes Ferreira , Seefeld Rodrigo
Published: June 2022

ABSTRACT The purpose of this research is to understand the professors’ role and the strategies used by Management professors for a better performance in the classroom. This is a qualitative study, based on semi-structured interviews with professors in this field. The analysis is based on the inductive method proposed by Gioia, Corley and Hamilton. It shows that postgraduate training is commonly detached from professional practice, given that its main focus is on research in detriment of professor training; on the other hand, when a professor training course is offered, professors have a better understanding of their role in the teaching-learning process. Thus, here are some of the main contributions of this study: professor training develops significant skills in teaching performance, making professors more confident in their teaching practice; the combination of professor training with learning based on practice promotes better resourcefulness in the classroom; and learning from peers was the most commonly used strategy to resolve issues in the classroom.
Uma proposta curricular para a formação de professores de línguas no contexto da educação do campo: reflexões e práticas de Educação Linguística
Authors: Castro Carlos Henrique Silva de , Magnani Luiz Henrique , Marques Luiz Otávio Costa
Published: June 2022

RESUMO A emergência das licenciaturas em educação do campo em universidades públicas brasileiras, ocorrida a partir do início do século XXI, mobiliza, na prática, um conjunto de questões pedagógicas, metodológicas, epistemológicas e logísticas de toda uma comunidade vinculada a tal política pública. Em particular, focalizamos o caso da habilitação em linguagens e códigos de um desses cursos, em que atuam os autores do texto. Com o objetivo de refletirmos sobre práticas educativas significativas no contexto apresentado, bem como sobre concepções de língua e linguagem que subjazem tais práticas, descrevemos alguns aspectos da habilitação, pormenorizando elementos de organização curricular tanto quanto práticas que mobilizam visões e posturas particulares. Tal descrição acompanha uma análise sobre aspectos conceituais e práticos sobre linguagem e educação que emergem a partir de nossa atuação no curso em questão. Consideramos que relatos e reflexões sobre experiências e aspectos de um curso marcado por práticas, expectativas, organização espaço-temporal e bases epistemológicas que se contrapõem a um modelo mais comum de formação de professores da área da linguagem no contexto brasileiro podem suscitar pautas de interesse mais amplo para as esferas da linguagem e da educação.
Modo de organização do ensino de matemática à luz da teoria do ensino desenvolvimental
Authors: Rosa Josélia Euzébio da , Fontes Mariana da Silva
Published: June 2022

RESUMO O objetivo deste estudo consiste em investigar o processo de origem e o desenvolvimento de elementos característicos do ensino desenvolvimental de Davýdov durante a introdução dos conceitos de multiplicação e divisão com acadêmicas de um curso de pedagogia, por meio de um experimento didático desenvolvimental. Para a apreensão da realidade pesquisada, acompanhamos os 15 encontros semanais, com duração de 3 horas cada, com 23 acadêmicas. Consideramos três momentos de análise: 1) ponto de partida; 2) processo de aprendizagem; e 3) ponto de chegada. Expusemos os resultados por meio de episódios formativos que apontam alguns indícios de superação de elementos do modo de organização do ensino empírico pelo teórico, no processo de aprendizagem das acadêmicas, tais como: revelação e modelação da relação nuclear dos conceitos e sistemas conceituais a partir das relações entre grandezas na interconexão das significações aritméticas, algébricas e geométricas.
“O meu é mais grande!”: jogos de comparação, cultura lúdica e apropriação de práticas de numeramento em um grupo de crianças de 3 e 4 anos em uma instituição de educação infantil
Authors: Lima Raquel Monteiro Pires de , Fonseca Maria da Conceição Ferreira Reis
Published: June 2022

RESUMO Neste artigo, focalizamos um grupo de crianças de 3 e 4 anos, em uma escola municipal de educação infantil, protagonizando processos de apropriação de práticas de numeramento não intencionalmente provocados pela ação didática escolar. Valendo-nos de aportes da sociologia da infância recente, procuramos compreender a integração dessas práticas socioculturais (de produção e uso de conhecimentos que aprendemos a associar à matemática hegemônica) à cultura lúdica daquele grupo, ao identificarmos suas marcas nos jogos interlocutivos que ali se estabelecem. Para isso, selecionamos eventos nos quais as crianças, brincando com brinquedos de construção, criam jogos de comparação de comprimentos e se engajam neles. Analisamos suas atuações como ações pragmáticas, de caráter lúdico e interativo, e, como tal, produtoras de um sistema de significações que, incorporando referências das práticas sociais de diferentes grupos, compõe e influencia a cultura lúdica daquele grupo.
Molecular identification for Helicoverpa spp. in Bt and non-Bt crops in central Argentina
Authors: Balbi Emilia Inés , Flores Fernando Miguel , Tosto Daniela Sandra , Arneodo Joel Demián
Published: June 2022

Abstract The objective of this work was to identify, by molecular analysis, the species of the genus Helicoverpa in corn, soybean, and lucerne Bt and non-Bt crops, in central Argentina. A total of 1,343 carterpillars were analyzed by PCR-RFLP. Helicoverpa zea was the only species detected on non-Bt and on most Bt corn hybrids. The species H. gelotopoeon predominated on non-Bt soybean and on lucerne, and H. zea larvae occurred in low proportion. Bt soybean did not show Helicoverpa spp. infestations. The exotic H. armigera was not found, though adult moths of this species were light-trapped in a complementary sampling.
Extraction of coffee berry borer adults and larvae from fruits
Authors: Nardon Adriana Cristina , Fujihara Ricardo Toshio , Rosa Daniel Dias
Published: June 2022

Abstract The objective of this work was to develop a new method for extracting Hypothenemus hampei adults and larvae from coffee (Coffea arabica) fruits. The extractor consists of a set of two plastic containers, with one fit on top of the other: the one on top is used to place the fruits inside and the one on the bottom, as a base to capture adults and larvae. The efficiency of the extractor was compared with that of the dissection method (control). The number of live adults, dead adults, and larvae does not differ significantly between the two evaluated methods. The developed extractor reduces hand labor, is affordable, and is effective in capturing larvae and adults of H. hampei.
Perfil do rastreamento do câncer do colo do útero em Campo Grande, Mato Grosso do Sul: um estudo avaliativo do período 2006-2018
Authors: Souza Geize Rocha Macedo de , Cardoso Andrey Moreira , Pícoli Renata Palópoli , Mattos Inês Echenique
Published: June 2022

Objetivo: Avaliar a cobertura e a qualidade do rastreamento do Programa de Controle do Câncer do Colo do Útero (PCCCU) em Campo Grande, Mato Grosso do Sul, Brasil, 2006-2018. Métodos: Estudo descritivo da tendência da série histórica de exames citopatológicos para rastreamento do CCU em mulheres residentes em Campo Grande. Foram descritas características demográficas das mulheres avaliadas e a qualidade dos exames realizados nos cinco últimos anos do período. Analisou-se a tendência temporal por modelos de regressão polinomiais. Resultados: Foram registradas 578.417 citologias, das quais 1,8% apresentaram alterações citológicas pré-malignas/malignas. Na faixa etária-alvo do programa, verificou-se redução de 48,4% no número de exames realizados. A positividade dos exames variou entre 2,2 e 3,3 e aumentou o percentual de amostras insatisfatórias. Conclusão: O programa de rastreamento de CCU apresenta fragilidades que necessitam ser superadas, como baixa cobertura da população-alvo, crescimento do número de amostras insatisfatórias e baixo índice de positividade.
REPORTES DE TORNADOS EN CUBA DURANTE 1991-2020. IMPACTO SOCIAL EN CRUCES Y CIUDAD DE LA HABANA
Authors: Pérez González Alexander Jesús
Published: June 2022

En el trabajo se determina la relación entre el aumento o no de los reportes de tornados en Cuba y el avance de la tecnología celular en el país, así como el impacto social de estos fenómenos, mediante dos casos de estudios ocurridos en Cruces y La Habana. Se analizó la tendencia que han tenido los tornados en Cuba durante el período 1991-2020, desglosado por años, meses y provincias de ocurrencia, con una estadística descriptiva. La tendencia de formación de tornados ha ido en descenso, sin embargo, la última década (2010-2020) mostró un aumento de reportes de este fenómeno. Se evidenció una clara variación estacional en el período estudiado, el 82 % del total de reportes ocurrió en el trimestre mayo-julio. Aunque actualmente existe un ligero incremento en el nivel de conciencia social, el estudio demuestra que debe elevarse el nivel de conocimiento, preparación y percepción de riesgos en los ciudadanos. Los resultados de este trabajo resultan de gran utilidad para los meteorólogos sinópticos y climatólogos, pues la tendencia y anomalías que muestran los tornados en Cuba, tributan al estudio de la variabilidad climática y los pronósticos a corto plazo, así como a una mayor resiliencia a estos fenómenos.
Professional Identity of Vocational Teachers in the 21st Century in Indonesia
Authors:   PhD Student of Postgraduate Programme, Yogyakarta State University, Yogyakarta - Indonesia, Nurtanto Muhammad , Sudira Putu ,   Department of Mechanical Engineering Education, Universitas Sultan Ageng Tirtayasa, Banten- Indonesia, Sofyan Herminarto ,   Postgraduate Programme, Yogyakarta State University, Yogyakarta - Indonesia, Kholifah Nur ,   Department of Fashion Design Education, Yogyakarta State University, Yogyakarta - Indonesia, Triyanto Triyanto ,   Department of Fashion Design Education, Yogyakarta State University, Yogyakarta - Indonesia
Published: June 2022

This article focuses on the professional identity needs of vocational teachers in the 21st century in Indonesia. Challenges in the 21st century have changed and caused major changes for vocational teachers, while vocational teachers have heterogeneous characteristics, including learning experience, educational background, employment status, and other determinants. An important objective of this study is to analyze the proxies of professional identity of vocational teachers in the 21st century in preparing future vocational teachers. This research uses a descriptive qualitative approach. A total of 139 vocational teachers participated in describing the professional skills needs of vocational teachers for the future. The findings describe that (1) technology skills and ICT are defined as hard skills and apart from the 4Cs, literacy strengthening is needed to strengthen soft skills; and (2) vocational teachers need hands-on experience in the business world, industry, and the world of work (DUIKA). This study recommends that the professional competence of vocational teachers needs to be improved through self-development training and continuous professional development (CPD). Keywords: vocational teacher, professional teacher, professional identity, technology skills, real experience
Developing synchronous and asynchronous online learning models for engineering college students in India: A grounded theory approach
Authors:   Symbiosis Institute of Management Studies, Symbiosis International (Deemed University), Pune, Chopra Komal , Chitranshi Jaya ,   Symbiosis Institute of Management Studies, Symbiosis International (Deemed University), Pune
Published: June 2022

Abstract: The Covid 19 pandemic lockdown in India led the education to move from classroom learning to online learning. This created the need for online learning pedagogies. The current study focuses on developing synchronous and asynchronous models of online learning for engineering students. The data for the current study was collected through interviews of engineering students of different specializations. Transcription of interviews were prepared and subjected to three levels of coding i.e. open coding, axial coding and selective coding in order to prepare concepts. The concepts were then integrated into a model using grounded theory approach. The finding indicate that synchronous mode leads to group learning, peer learning, learning through simulation and effective learning. The asynchronous mode leads to reinforcement based learning. Key words: online learning, engineering, India, synchronous, asynchronous
An Effective Way of Teaching Fundamentals of Robotics to Undergraduate Students using RoboAnalyzer
Authors:   KLE Technological University, Vidyanagar, Hubli – 580031., V Meti Vinod Kumar ,   KLE Technological University, Vidyanagar, Hubli – 580031., Giriyapur Arunkumar C ,   KLE Technological University, Vidyanagar, Hubli – 580031.
Published: June 2022

Abstract: Robots are becoming increasingly important as the world continues to evolve. Robots are needed to achieve higher production rates and competitiveness. Many universities have already started to offer robotics courses in response to the growing demand for automation. However, in a traditional classroom teaching method, students find it challenging to apply pure mathematical algorithms in robotics. The lack of visualization of robot modelling affects the students learning interest. It becomes imperative to introduce simulation software in teaching the fundamental concepts of robotics. This paper presents the application of the RoboAnalyzer tool to teach the robotics course at the undergraduate level. The methodology was adopted to complement the theoretical concepts of robotics. In the present study, we collected feedback from the students about the method. The results show that around 76 % strongly agreed that the RoboAnalyzer tool improved learning efficiency, and 74 % strongly agreed that the combination of conventional teaching and the simulation tool is better than the traditional teaching method. RoboAnalyzer was implemented during the academic year 2019 – 2020 and received a positive response. Keywords: learning, modelling, RoboAnalyzer, robotics, simulation, undergraduate,
Facilitating Learner Centric Decision Making for Massive Open Online Courses
Authors: Kumar Yogesh , Bhardwaj Anshul , Hasteer Nitasha , Soni K. M.
Published: June 2022

Abstract : Learners opt for MOOCs as it provides multiple benefits and the most important being that these courses can be accessed anytime and from anywhere with internet access. Learners can study their desired course at their convenience of time and desired pace. But as there are multiple options for them, they may get confused about selecting a course. This study highlights the findings of implementing the Analytical Hierarchical Process (AHP), a Multiple Criteria Decision Making (MCDM) technique used to choose the best option in case of multiple alternatives. Attributes were selected from literature and a survey was administered to learners. Responses were analyzed and courses were ranked based on their scores. From the analysis, we interpret that usefulness of the course in the University Curriculum is the most preferred criteria while selecting the course. Keywords : MOOC, Multiple Criteria Decision Making, Analytical Hierarchical Process
Problem-Based Learning Experience in Civil Engineering
Authors:   KLE Dr. M. S. Sheshgiri College of Engineering and Technology, Belagavi, India., Katageri Basavaraj G. , Raikar Rajkumar V. ,   KLE Dr. M. S. Sheshgiri College of Engineering and Technology, Belagavi, India.
Published: June 2022

Abstract : The activity-based learning (ABL) is essential to be incorporated in teaching-learning process to attain graduate attributes in engineering education. Problem-based leaning (PBL) is one of such activities. This paper demonstrates the crafting of authentic PBL problems in Civil Engineering discipline. The problems can be of different durations and can be segregated in to various phases based on the knowledge acquired by the students and problem requirements. The experience of one phase of a PBL problem carried out is promising in exhibiting the improvement of skills of the students in solving the problems in the real-world scenario. PBL activity if incorporated in engineering curriculum will definitely result in enhanced Teaching-Learning process. Keywords: Accreditation; Activity Based Learning; Problem-Based Learning; Civil Engineering.
Fundamentos psicológicos para integrar la emoción en la evaluación formativa
Authors: Monsalve Flórez Jhon Alexánder , Torres Lizarazo David Fernando
Published: June 2022

Este artículo de reflexión, adscrito a la línea “Prácticas Pedagógicas” del Grupo de Investigación Cuynaco, tiene como objetivo el análisis teórico de las emociones dentro de los procesos de evaluación formativa. Para lograr el propósito, se opta por una revisión de orden documental, enmarcada dentro del paradigma interpretativo de la ciencia. Se procede, en principio, por la revisión teórica en torno a la evaluación formativa y, paso seguido, se concatena con dos teorías sobre emociones (Revee, 2010; Heller, 1993). Como conclusión, se reconstruye el diálogo entre evaluación formativa y emoción, como punto de partida de la relación constructivista entre el docente, el estudiante y la institución educativa, cuyo fin radica en que el estudiante llegue a la autonomía en su proceso de aprendizaje.
Thermal Effect Estimation of Smartphone Virtual Reality Headsets on Human Eye by Finite Element Method
Authors: ULUAYDIN Niyazi , ŞEKER Selim
Published: June 2022

Smartphones (SP) terminals are becoming the most popular media for virtual reality (VR) and augmented reality (AR) effects with their central processing unit (CPU) and video capabilities. Simple VR headsets with reasonable costs can host smartphones, and they can together be used for many different applications. But with the outbreak of Covid-19 pandemic, their usage has become essential for many people working from their homes. VR and AR capabilities provide a much richer experience for entertainment, gaming, and video conferencing. The increasing popularity of 3D virtual worlds add up to this usage. On the technology side, multi-radio connectivity is supported both on terminal and network side. A certain risk may arise when using SP VR headsets for such applications requiring a broadband Internet connectivity. SPs with multi-radio connectivity feature may elevate specific absorption rate (SAR) values in those cases. The smartphone used for VR and AR applications is positioned in front of the eyes; and there is very limited ventilation in VR/AR headsets. Authors’ model aims simulate these exposure scenarios in 4G and 5G mobile telecommunication frequencies by finite element method (FEM); and, possible thermal and non-thermal risks of related electromagnetic (EM) radiation on human eye according to the outputs of the model are discussed.
Analysis of the function that forms an algebraic system in parametric identification
Authors:   Novosibirsk State Technical University, Russian Federation, Chikildin Gennady P. , Mizyukanova Anna A. ,   Novosibirsk State Technical University, Russian Federation
Published: June 2022

Problems formulation for modern industrial systems is completely or partially reduced to the problem of parametric identification of dynamic objects. Success of solving such problems largely depends on the availability and volume of a priori information, such as input and output signals of the control object measured with noise. However, the solution of identification problem also requires derivatives of measured signals, and the obtaining of its values by numerical differentiation is an ill-posed problem. This paper considers the parametric identification problem, in which parameters estimation of a mathematical model of a linear dynamic object from experimentally obtained values of input and output signals is reduced to solving a linear algebraic system formed by integral convolution operators with analytically given forming functions. An approach to solve the numerical differentiation problem by using integration by parts in a system of linear algebraic equations forming is proposed. However, for this operation to be correct from the point of view of identification it is necessary that the forming functions should satisfy certain requirements of behavior in both the time and frequency domains. Thus, key task in the formation of a linear algebraic equation system is the choice of linearly independent functions that form this system. The paper proposes such a forming function. A detailed analysis of its properties and properties of its derivatives is presented. Experimental results obtained illustrate the correctness of using an operation of integration by parts instead of numerical differentiation of measured signals relating to the identification problem. The aim of the work is to study features of the formation of an algebraic system of equations, to analyze properties of the functions that form this system in detail, including the impact of correcting parameters of these functions and also to produce recommendations for their choice in parametric identification.
YEŞİL PAZARLAMA ALGISININ ÇEVREYE DUYARLI ÜRÜNLERİ SATIN ALMAYA ETKİSİNDE SÜRDÜRÜLEBİLİRLİK BİLİNCİNİN ARACILIK ROLÜ
Authors: ÇAYIRAĞASI Filiz
Published: June 2022

Dünya topluluğunun küresel sürdürülebilirlik bilinci çağrısına yanıt vermek; çevresel boyutun yanı sıra, sosyal ve ekonomik boyutun da dâhil edilerek, sürece insani bilgi alanlarının entegrasyonunu da gerektirmektedir. Bu motivasyondan hareket ile çalışmanın temel amacı, yeşil pazarlama algısının çevreye duyarlı ürünleri satın almaya etkisini incelemek ve bu etkiye sürdürülebilir bilincin aracılık rolünü belirlemektir. Bu doğrultuda nicel bir araştırma temelinde elde edilen veriler, betimleyici istatistikler, faktör analizi, bağımsız örneklem t-testi ve tek yönlü varyans, (ANOVA) analizi, korelasyon ve regresyon analizleri, gibi istatistiksel teknikler ile analiz edilmiştir. Elde edilen bulgular yeşil pazarlama algısının çevreye duyarlı satın alma faaliyeti üzerinde etkisinin olduğunu, ayrıca sürdürülebilir bilincin, yeşil pazarlama algısının çevreye duyarlı ürün satın alma üzerindeki etkisine kısmi aracılık etkisinin varlığına işaret etmektedir.
Fen Bilimleri Dersi Öğretim Programı ve Fen Bilimleri Ders Kitaplarında STEM Eğitim Yaklaşımının Yeri
Authors: ÜNSAL İrem , BAKAR Elif
Published: June 2022

Bilim, teknoloji ve mühendislik temelli içeriklerin küresel boyutta giderek artan önemi STEM (Science, Technology, Engineering and Mathematics) yaklaşımının eğitim içeriklerinde yer bulmasına yol açmıştır. Bu nedenle temel eğitimin felsefesi doğrultusunda güncellenen ilkokul ve ortaokul fen bilimleri dersi öğretim programında ve programa göre hazırlanan ders kitaplarında STEM yaklaşımının yerini ortaya koymak bu çalışmanın amacını oluşturmaktadır. Nitel araştırma şeklinde doküman incelemesi ve içerik analizi basamaklarına uygun olarak çalışılan bu araştırmada 3. sınıftan 8. sınıflara kadar uygulanmakta olan fen bilimleri dersi öğretim programı ile Millî Eğitim Bakanlığı tarafından öğrencilerin kullanımına sunulan 2019-2020 eğitim öğretim yılına ait fen bilimleri ders kitapları incelenmiştir. Buna göre STEM yaklaşımının öğretim programı ve ders kitaplarında kazanımlar ve açıklamaları vasıtasıyla metin ve etkinliklerle ya da kitaplarda özel bir bölüm şeklinde açıkça yer aldığı sonucuna ulaşılmakla birlikte yaklaşımın dersteki yerinin geliştirilmesi ve desteklenmesi gereken boyutlarına yönelik içerik ve uygulama bağlamında sistemsel öneriler yapılmıştır.
Science Teachers' Views Regarding Support and Training Courses
Authors: GÖKÇE Hasan , GÖKÇE Zeliha , BEKTAS Oktay , KIZKAPAN Oktay
Published: June 2022

This research aims to determine the evaluations of science teachers regarding support and training courses. The research is conducted by using phenomenology design of qualitative research method. The data of the research is collected in six state secondary schools in Melikgazi district of Kayseri from six science teachers who gave science lessons at support and training courses. The semi-structured interview is used as a data collection tool. Interview form is created by the researchers and examined by a science teacher and a Turkish teacher before it is used in the study. Recordings of the interview were transcribed. Then data is analyzed by the researchers. Findings are presented with direct quotations from the participants. As a result of the study, it is concluded that although there are problems in terms of insufficient materials and student attendance, the participants are satisfied with the support and training courses. In the light of these results, suggestions regarding the diversification of resources and optimization of the courses were made.
ORM 1 as a biomarker of increased vascular invasion and decreased sorafenib sensitivity in hepatocellular carcinoma
Authors: Gu Jiangning , Xu Shiqi , Chen Xiang , Luo Haifeng , Tan Guang , Qi Wenjing , Ling Feng , Wang Chenqi , Maimaiti Feiliyan , Chen Yunlong , Yang Lili , Yin Menghong , Chen Dan
Published: June 2022

This study aimed to clarify the role of Orosomucoid 1 (ORM1) in the development and therapy resistance in hepatocellular carcinoma (HCC). The mRNA expression level of ORM1 was analyzed via integrative analysis of Gene Express Omnibus (GEO) and The Cancer Genome Atlas (TCGA) datasets. The protein expression level of ORM1 in our cohort was determined using immunohistochemistry. Correlation analysis was used to investigate the relationship between ORM1 expression and clinical parameters. The Cell Counting Kit-8 assay was used to clarify the role of ORM1 in HCC malignant behaviors, including cell growth and sorafenib sensitivity, in vitro. The results indicated that ORM1 was significantly downregulated in the hepatic cancer cells compared to that in the non-cancerous cells. However, it was upregulated in microvascular invasion samples, especially in the cancer embolus compared to that in the surrounding tumor cells. Though Kaplan-Meier analysis did not show an association of ORM1 expression with the overall survival rates of HCC patients, univariate analysis indicated that ORM1 expression was highly correlated with tumor grade and stage. An in vitro assay also revealed that downregulation of ORM1 led to the suppression of tumor growth and enhancement of sorafenib sensitivity without epithelial-to-mesenchymal transition (EMT) alteration, which was consistent with our bioinformatic analysis. Hence, ORM1 played a key role in HCC tumorigenesis and may serve as a potential target for the development of therapeutics against HCC in the future.
New energy efficiency metrics for the IT industry
Authors: Sukhov Rafael , Amzarakov Maxim , Isaev Evgeny
Published: June 2022

Reducing the technogenic impact of human activity on the ecology of the planet is a problem that is increasingly moving from a theoretical category into a practical one. The environmental situation is serious and requires more attention. One of the significant factors of the negative impact of humans on their environment is the emissions of harmful substances that occur during the production of electricity. The technical development of humanity and the widespread introduction of information technologies are characterized by an explosive growth in the number of electronic devices and the amount of data transmitted over information networks. This contributes to an increase in the need for computing resources for storing and processing this data, and as a result, the need for electricity is also increasing. Over the past 15–20 years, computing equipment has increased its computing power many times. The number of servers in operation is currently estimated at many millions of units, and the total energy consumption of the server park is becoming very significant in the structure of energy costs in all developed countries. In this article, we will analyze a way to reduce energy costs in the operation of servers and data centers, the application of which has a high potential for saving energy. We will give an example of a new way to evaluate the efficiency of IT equipment using a new factor – the server idle coefficient (SIC).
A Novel Design and Structural Analysis of Spring Landing Gear for Unmanned Air Vehicles
Authors: GÖK Mustafa Güven , CİHAN Ömer
Published: June 2022

Aircraft are subjected to an impact load during landing. This situation becomes more important for unmanned aerial vehicles that are remotely controlled and must serve in extreme conditions. Because the landing gear should absorb this impact load as much as possible and prevent damage to the unmanned aerial vehicle body and its components. In this study, a landing gear design was developed for unmanned aerial vehicles that can absorb more impact load during landing. Numerical analyzes were performed to determine the fa-tigue life and the maximum impact load that the developed design could withstand. In addi-tion, a conventional landing gear was modeled and the results were compared. The properties of 7075-T6 Aluminum alloy were used as the landing gear material. As a result of the finite element analyzes made with Ansys software, it had been understood that the newly designed landing gear could absorb more energy than the conventional landing gear. It had also been determined that it could be used at values up to 3700N impact load
Application Design and Implementation for the Automotive Industry with Virtual Reality
Authors: AKIN Mustafa , UZUN Yusuf
Published: June 2022

The concept of "Virtual Reality" has entered our lives by adding virtual reality glasses to the computers, smartphones, or tablets that we frequently use with the developing technology day by day. Virtual reality includes the virtual world and three-dimensional virtual objects created in the computer environment. Virtual Reality technology aims to enable people to interact with objects by immersing them in the virtual world through equipment (VR glasses, hand controls, treadmills, etc.). This technology can be used in education, health, shopping, etc. used, in many fields. In this paper, virtual reality technol-ogy was used in an automobile store application. The study aims to enable people to read the necessary information about the selected automobile by choosing a car and color. Users will be able to visit and interact with this auto shop with virtual reality equipment in their environment. The 3D models required for the study were made with the Blender program, the software was made with the Unity3D game engine, and the application was developed. The application was tested with the participation of 26 people. As a result, the feedback received from users has been positive. It is thought that the study will be developed and contribute to the literature in different ways.
Bending Response of Lattice Structure Filled Tubes under Transverse Loading
Authors: CETİN Erhan , BAYKASOGLU Cengiz
Published: June 2022

Thin-walled tubes are widely used as passive energy-absorbing structures in a variety of industries. These structures are typically filled with lightweight materials to improve their energy absorption capabilities. At this point, additive manufacturing technology offers a great chance researchers for the production of novel filler structures to increase the crashworthiness performance of thin-walled tubes. In the current work, additive manufacturable body-centered cubic (BCC) lattice structures are suggested as filling materials for thin-walled tubes, and the bending response of these structures is investigated under transverse loads via a finite element modeling approach. The aspect ratio and strut diameter are considered as design parameters, and three-point bending simulations are conducted to understand the transverse load bearing behaviors of the structures. Different loading offsets are also taken into account for three-point bending simulations. The numerical results revealed that the BCC lattice structures used as filler materials significantly increase the energy absorption performance of thin-walled tubes due to synergetic interactions. In particular, the simulation results revealed that the hybrid tubes can absorb up to 84% more energy than the empty tubes, while the crush force efficiency of these structures is up to 42% higher compared to the empty tubes. The present study also showed that the transverse crushing characteristics of tubes can be considerably improved by suitable selection of the design parameters. These primary outcomes reveal that the proposed lattice structures can be considered as a potential alternative to traditional filler materials for enhancing the bending response of thin-walled tubes under transverse loading.
Reliability assessment for micro inertial measurement unit
based on accelerated degradation data and copula theory
Authors: Chi Bingjia , Wang Yashun , Hu Jingwen , Zhang Shufeng , Chen Xun
Published: June 2022

With its extensive use in industry, assessing the reliability of the micro inertial measurment
unit (MIMU) has become a pressing need. Unfortunately, the MIMU is made up of several
components, and the degradation processes of each are intertwined, making it difficult to
assess the MIMU’s reliability and remaining useful life. In this research, we offer a reliability assessment approach for the MIMU, which has long-lifetime and multiple performance characteristics (PCs), based on accelerated degradation data and copula theory.Each PC
model of MIMU is constructed utilizing drift Brownian motion to depict accelerated degradation process. The copula function is used to model the multivariate dependent accelerated
degradation test data and to describe the dependency between multiple MIMU performance
parameters. The particle swarm optimization algorithm is used to estimate the unknown
parameters in the multi-dependent ADT model. Finally, the storage test and simulation example on MIMU’s accelerated degradation data verify the feasibility and effectiveness of
the proposed method.
A Cluster Analysis of Population Based Cancer Registry in Brunei Darussalam: An Exploratory
Authors: Teck ching Lai Daphne
Published: June 2022

Machine learning techniques have been mostly applied in gene expression cancer data. Socio-demographic data available in cancer registries could be explored, to get further insight into relationships between cancer types and their contributing factors. Moreover, less attention has been paid to analyse the mixed demographic data (numeric and categorical) from cancer registries and its association to the cancer types. The aim of this study is to identify subgroups of patients, having similar demographics characteristics, from the population based cancer registry in Brunei Darussalam and examine the prevalent cancer types in these subgroups. Four clustering algorithms are explored in the cluster analysis of Brunei Darussalam Cancer Registry; Two-step, Partitional Around Medoid, Agglomerative Hierarchical and Model-based. Gower distance was used for measuring similarity for mixed data types. To evaluate the clusters found; cluster distribution and Silhouette index were used for cluster quality, Cohen's Kappa Index for cluster stability and Cramer's V Coefficient for clinical relevance of clusters. Six distinct demographic subgroups were consistently found by three algorithms while model-based clustering solution were not considered for deeper analysis as highly imbalanced clusters were produced. The subgroups found have good quality clusters, moderate association with cancer types and high stability. The top three prevalent cancers associated with these subgroups were consistently identified using the three algorithms. Upon comparing the subgroups’ ages during diagnosis, we identify possible screening behaviours of specific subgroups, suggesting for early screening awareness programmes. This study demonstrates the use of cluster analysis in a cancer registry to identify demographic subgroups that could suggest potential areas to develop targeted and improved healthcare management strategies.
Prevalence of Methicillin-Resistant Staphylococcus aureus at a Tertiary Teaching Hospital in Malaysia
Authors:   Department of Surgery, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia., Hayati Firdaus
Published: June 2022

Methicillin-resistant Staphylococcus aureus (MRSA) is a major nosocomial pathogen that causes severe morbidity, mortality and high medical expenses in many hospitals worldwide. The present study aimed to determine the prevalence of MRSA nosocomial infection, its associated factors, and its antimicrobial susceptibility pattern. This was a retrospective analysis of a database of Multidrug- Resistant Organism (MDRO) that was cultured from patients admitted to Hospital Canselor Tuanku Mukhriz (HCTM) over a period of 2 years (2018-2019). MRSA accounted for 23.6% of total MDRO isolates. The male gender had a higher risk for MRSA acquisition (p<0.05), while the most prevalent setting for MRSA was the orthopaedic ward (47.5%) followed by the medical ward (29.4%). The MRSA strains were significantly isolated from respiratory specimens (55.6%) followed by tissue (50.8%) and blood (27.8%). All MRSA isolates were resistant to penicillin G, oxacillin followed by ciprofloxacin (83.8%) erythromycin (71.5%) and clindamycin (53.5%). MRSA isolates were most susceptible to teicoplanin (99.7%), mupirocin (99.3%), co-trimoxazole (98.4%), rifampicin (97.8%), doxycycline (97.4%), linezolid (95.8%), gentamicin (93.9%) and fusidic acid (86.2%). The trend for MRSA’s antibiotic susceptibility in HCTM for the past 2 years (2018 to 2019) remains unchanged. Further research will be required to investigate the predictor of MRSA by clearly differentiating between MRSA infections and colonisations, hospitalacquired MRSA and community-acquired MRSA.
Safety and Effectiveness of Using Double-Ended Allograft in the Repair of Large Defects of Bi-Epiphyseal Bones in Experiment
Authors: D’yachkov Alexandr N. , Migalkin Nikolay S. , Stogov Maksim V. , Soldatov Yuryi P. , Dyuryagina Olga V. , Tushina Natalia V.
Published: June 2022

BACKGROUND: The repair of large defects in the long bones remains one of the most pressing problems in traumatology and orthopedics.
AIM: To evaluate the effectiveness and technological safety of the repair of large defects of the long bi-epiphyseal bones including the use of double-ended bone allografts to demarcate the defect cavity from the surrounding tissues and fixation of bone fragments using an external fixation device.
MATERIALS AND METHODS: Experiments were conducted on 14 adult nonpedigree male and female dogs aged 12 years. The double-ended allograft was used to demarcate the formed defect of the tibial bones at 1.5 diameter length of the shinbone. The bone fragments were fixed with Ilizarov apparatus adapted for experiments on dogs. The maximal follow-up period was 2 years after the surgery. In the dynamics of the experiment, life-time observations, X-ray examination, and laboratory control were conducted. After euthanasia, the implantation zone was examined histologically.
RESULTS: The visual signs of the restructure of the transplants were identified starting from day 35 after surgery. The bone regenerates in the defect zone completely formed within 3 months after the surgery. This permitted the removal of the external fixation apparatus in 3 months after the surgery. The restructuring of the newly formed part of the bone continued for 2 years after the operation. No significant changes in the laboratory parameters in the dynamics of the experiment were observed. No changes could be evaluated as negative phenomena. No serious unwanted events were recorded either.
CONCLUSION: The proposed technique for the repair of large defects of long bi-epiphyseal bones demonstrated safety and sufficient effectiveness in the speed of regeneration of the defect and quality of the bones formed.
Simultaneous Treatment of Multifocal Gastric and Sigmoid Colon Carcinoma from Laparoscopic Access: A Case Report
Authors: Zaytsev Oleg V. , Ignatov Ivan S. , Ogorel'tsev Aleksandr Yu. , Bizyayev Sergey  V. , Evsyukova Mariya A. , Li Yuliya B. , Yudin Maksim A. , Snegur Svetlana V. , Bragina Irina Yu. , Korobova Elena  G.
Published: June 2022

INTRODUCTION: The number of patients with multifocal carcinoma (MFC) in the Russian Federation is growing annually. MFC is associated with the prolongation of the life span of the population, increase in the incidence of common morbidities, and improvement of instrumental diagnostic methods. Surgical treatment is indicated for gastric and colorectal MFC at the early stages. Laparoscopic access with several advantages over the open access is preferred. This article describes a clinical case of simultaneous surgical treatment of gastric and colorectal cancer through a laparoscopic approach in an 81-year-old patient.
CONCLUSION: The described clinical case shows that the modern diagnostic methods and surgical equipment permit not only the early identification of tumors of the gastrointestinal tract but also their successful simultaneous surgical treatment in patients with comorbidities.
Differential Approach to Surgical and Endovascular Treatments of Pulmonary Thromboembolism in Patients with Neurological and Neurosurgical Problems
Authors: Fedorov Sergey  A. , Medvedev Aleksandr  P. , Tselousova Lada  M. , Kudykin Maksim  N. , Pichugin Vladimir  V. , Zhurko Sergey  A. , Chiginev Vladimir  A. , Gamzaev Alishir  B. , Trofimov Nikolay  A. , Gamayunov Sergey  V. , Deryabin Roman  A.
Published: June 2022

INTRODUCTION: Pulmonary embolism (PE) is one of the most threatening complications in patients with neurological and neurosurgical problems. The high epidemiological threshold values and mortality in the considered group of patients attracted the interest of researchers in the methods of early diagnosis and selection of methods of reperfusion of the pulmonary arterial bed.
AIM: To analyze clinical and hemodynamic results of the surgical and endovascular treatment of PE of the high and intermediatehigh risks in the group of patients with neurological and neurosurgical problems.
MATERIALS AND METHODS: This study involved 24 patients with PE of high and intermediate high-risks. The first group involved seven patients with neurosurgical problems who underwent thromboembolectomy from the main and lobular branches of the pulmonary artery in conditions of parallel perfusion of the artificial circulation. The duration of perfusion was 26.0 7.4 min. The second group consisted of 17 patients with acute hemorrhagic stroke, in whom endovascular mechanical fragmentation of thromboemboli was performed using a modified Pig-Tail type catheter introduced by puncture through the subclavian or jugular vein. The first clinical manifestations of PE appeared 4.78 2.02 days after the neurosurgical intervention and 8.45 2.6 days after the onset of stroke. The initial systolic pressure in the pulmonary artery was 67.24 5.15 mm Hg in the first group and 70.53 4.53 mm Hg in the second group. Both groups had American Society of Anesthesiologist physical status IV and V classes of surgical risk and Pulmonary Embolism Severity Index class V (130174 points).
RESULTS: The hospital survival rates were 100% and 82.36% in the first and second groups, respectively (three lethal cases due to progressing right-ventricular failure in the first 18 h after the procedure). On discharge, signs of reverse remodeling of the right heart chambers and reduction of the mean and systolic pressure in the pulmonary artery to 21 2.16 and 31 4.12 mm Hg, respectively, were noted in the first group and to 46 5.23 and 57 3.16 mm Hg, respectively, in the second group.
CONCLUSION: Surgical treatment of PE is effective and safe with predictable results. Endovascular catheter induced destruction of the thromboembolus substrate is an alternative to the surgical treatment of patients with a high-risk of open surgery and absolute contraindications for thrombolytic therapy.
Common Hematological Disorders in Patients with Schizophrenia: In-Patient Case — Control Study
Authors: Ransing Ramdas , Kamble Ashwini , Kulkarni Rajashree , Khairkar Praveen , Patil Suvarna , Pevekar Krishna , Misha Kishrod , Gangane Nitin
Published: June 2022

INTRODUCTION: Although common hematological abnormalities (CHA) such as anemia, macrocytosis, and platelet dysfunction are often present in patients with schizophrenia, empirical data are limited. Thus far, such deviations have been mentioned either in reports or in a series of clinical cases.
AIM: To study the incidence of CHA in patients with schizophrenia.
MATERIALS AND METHODS: This study involved 791 patients with schizophrenia [including those who did not receive medical drugs (n = 115) and patients with chronic schizophrenia (n = 376)] and 504 healthy volunteers. From each participant, blood samples were taken and analyzed for CHA using an automatic Coulter counter. In the three groups, 2 tests and analysis of variance (ANOVA) were conducted to compare the variables.
RESULTS: The incidence of macrocytosis was nearly the same in the schizophrenia group (patients not receiving medications, 10.5%; patients with chronic schizophrenia, 10.6%) and was significantly higher than that in the control group (4.2%). The platelet count was considerably higher in the chronic schizophrenia group ([282.5 87.9] 103/L) than in the group not receiving medical drugs ([277.0 92.8] 103/L) and control group ([249.6 85.2] 103/L), whereas the differences in the concentration of hemoglobin and leukocytes in the blood were insignificant.
CONCLUSION: Patients with schizophrenia have a higher proportion of macrocytosis in combination with increased platelet count, which shows that the underlying diseases should be diagnosed and treated as early as possible. Moreover, prospective studies with a larger sample size are necessary to determine the etiology of these conditions in patients with schizophrenia.
Source Characteristics of the Shallow 2019 Ms 6.0 Changning, China, Earthquake Sequence in the Salt Mining Area
Authors: Guo Xiangyun , Zhang Xu , Li Dahu , Yi Lei , Luo Jun
Published: June 2022

The 17 June 2019 Ms 6.0 Changning earthquake occurred on the southern margin of the Sichuan basin in China, which breaks the historical record for the largest earthquake in the Sichuan basin. Based on the abundant local seismic, strong motion, and Interferometric Synthetic Aperture Radar line of sight displacement data, we investigate the detailed source characteristics of this earthquake sequence. We determine focal mechanisms of 68 ML≥2.0 aftershocks with P wave first-motion polarities and S/P amplitude ratios. The triangle diagram of focal mechanisms shows that 82% of the aftershocks have thrust faulting mechanisms. The spatial distribution of aftershocks together with the determined focal mechanisms indicates that this earthquake sequence was mainly controlled by the southeast–northwest-extended faults. In addition, the revealed diversity of aftershock focal mechanisms implies that some small subsidiary faults with different geometries and motion features have likely been ruptured. The kinematic finite-fault joint inversion results reveal a complex rupture process of the mainshock on two fault segments with different geometries. The rupture initiated on the southeastern fault segment with a gentle dip angle and then jumped to the vertical northwestern fault segment. The main rupture length and duration are approximately 11 km and 8 s, respectively. The released total scalar seismic moment during the rupture process is 4.6×1017  N·m, corresponding to a moment magnitude of Mw 5.7. Our results suggest that the nucleation and the rupture initiation and propagation of the 2019 Ms 6.0 Changning earthquake sequence were likely controlled by the intrinsic structure and stress heterogeneities of the involved seismogenic faults, as well as the variation in pore-fluid pressure caused by the long-term water injection in the Changning salt mining area and adjacent areas.