bluuebunny/crossref_metadata_2025 huggingface dataset:
Morphometric Study of Atlas Vertebra In Relation to Sulcus Arteriae Vertebralis
Authors:   Associate Professor, Department Of Anatomy, Punjab Institute of Medical Sciences (PIMS), Jalandhar, Punjab, India., Kaur Jasveen , Gulati Harpreet Singh ,   Assistant Professor, Department Of Anatomy, Punjab Institute of Medical Sciences (PIMS),  Jalandhar, Punjab, India., Kaur Kamaljeet ,   Associate Professor, Department Of Anatomy, Punjab Institute of Medical Sciences (PIMS),  Jalandhar, Punjab, India.
Published: June 2023

Background: Atlas(C1) is an atypical cervical vertebra shaped like a ring. Important structures like the vertebral artery, suboccipital plexus of veins and first cervical nerve pass through it. Knowledge of the variability of C1 is important for neurosurgeons, orthopaedicians, otorhynologists and other physicians who in everyday practice are in contact with disorders of the spine and their consequences. So, this study was undertaken to assess the various dimensions of the C1 in relation to the vertebral artery groove. Methods and materials: fifty dried human atlas vertebrae were studied. Various measurements were done and statistically analysed. Results: Antero-posterior diameter (APD) of Foramen transversarium(FT) was measured as 7.73  1.04mm on the right and 7.62  0.90mm on left side. Transverse Diameter(TD) of FT was observed as 6.12  0.97mm on the right side and 6.02  0.97mm on the left side. Outer Distance of Vertebral Artery Groove(VAG) was measured as 26.22  2.32mm and 25.84  1.85mm on the right and left sides, respectively. Inner Distance of VAG was observed as 13.10  1.66mm on right and 13.17  1.57mm on the left side. APD of Superior Articular Facet(SAF) was 21.52  2.36mm on right and 21.51  2.07mm on left side.TD of SAF was 11.21  1.47mm on right and 11.32  1.53mm on left side. APD of Inferior Articular Facet(IAF) was observed as 17.54  1.50mm on right and 17.701.60mm on left side. TD of IAF was observed as 14.99 ± 1.65mm on the right side and 14.94 ± 1.51mm on left side. Distance between lateral-most edge of both Foramen Transversaria was measured as 56.37  4.11mm and distance between medial-most edge of both Foramen Transversaria was 44.78  3.67mm. MaximumTD of Atlas was measured as 72.09 5.59mm. Conclusion: The study will generate information that would be useful for geometric modelling of vertebrae and give necessary morphometric data on human atlas vertebra in Indian population. KEYWORDS: Atlas vertebra, Foramen transversarium, Vertebral Artery.
A Cost-Effective Novel Method of Preparing Plastinated Specimens of Brain
Authors:   Assistant Professor, Department of Anatomy, Symbiosis Medical College for Women, Symbiosis International (Deemed) University (SIU) Pune, Maharashtra, India., K. Vijayakumar  , Ambike Mandar ,   Professor and HOD, Department of Anatomy, Symbiosis Medical College for Women, Symbiosis International (Deemed) University (SIU) Pune, Maharashtra, India., Dixit Daksha ,   Professor, Department of Anatomy, Symbiosis Medical College for Women, Symbiosis International (Deemed) University (SIU) Pune, Maharashtra, India.
Published: June 2023

The human bodies and organs have traditionally been preserved using formalin solution, although it irritates the eyes, nose and throat. Plastination is an unique and expensive method for preserving biological samples that can be used in teaching and research. Therefore, the goal of the current study was to prepare a cost-effective solution using thermocol to plastinate the brain specimens as a supplement for teaching and research. Two human brains were used in this pilot research project. According to standard procedures, the brains were first fixed in 10% formaldehyde, sectioned horizontally, sagittally and coronally dehydrated in acetone, and then immersed in the plastination solution at room temperature and pressure. Then the specimens were air-dried at room temperature. A team of 62 Anatomists and Pathologists assessed the quality of the specimens using a self-developed grading scale. The grading was provided based on the specimens' clarity, stability, aesthetic look, colour and smell. Statistical analyses was performed using SPSS software, Kruskal Wallis test showed that the lowest mean score was 4.04 provided for colour and highest mean score was 5 provided for the smell with a statistically significant p<0.001. Thus our plastinated specimens were of good quality, durable and handle-friendly. Our study demonstrated that the cost-effective plastination solution (CEPS) procedure is an inexpensive and efficient way to create plastinated specimens that are appropriate for teaching neuroanatomy. KEY WORDS: Brain, Thermocol, Plastination, Cost-Effective Plastination.
Histórico e potencial desperdiçado: a infraestrutura e o desenvolvimento sustentável de Barra do Corda, Maranhão
Authors: Freitas André Rodrigues de , Araújo Ilana Maria Rodrigues
Published: June 2023

Esta pesquisa discorre sobre uma sistematização histórico-analítica dos conceitos de cidade e desenvolvimento urbano, relacionando o potencial de indústria, comércio e turismo de Barra do Corda - MA, apresentando um breve histórico de desenvolvimento e influências da infraestrutura local. Com o objetivo de analisar o complexo estruturante da cidade, debatendo ações históricas, a contemporaneidade do núcleo de turismo e a relação político-urbana. Apesar de sua fundação em 3 de maio de 1835, pelo cearense Manoel Rodrigues de Melo Uchoa (1823-1866), a cidade padece de visibilidade e desenvolvimento pertinente ao contemporâneo e sua história recente. A pesquisa parte do método indutivo, observando o fenômeno industrial e o contraste político-social com ênfase nos potenciais do final do século XIX e a primeira metade do século XX, para então compreender em que ponto surgiram desafios no que se refere à estagnação do desenvolvimento urbano; o reflexo em índices socioeconômicos e a estrutura inapta de políticas públicas da cidade em recorte histórico-temporal. Como resultados aponta-se o reconhecimento de uma infraestrutura limitante do desenvolvimento sustentável e, principalmente, a relação direta dos potenciais existentes, o contexto socioambiental e sua não utilização como gerador econômico, tal qual a ramificação de uma cadeia produtiva para a região. As contribuições ficam a cargo de sua ascensão histórica, do potencial e da negativa pública de uma cidade centenária com posição estratégica na Microrregião do Alto Mearim e Grajaú, Estado do Maranhão, reconhecida há décadas e ainda assim fora do desenvolvimento integrado do potencial ambiental-urbano ali presente.
Machine learning na aprendizagem das ciências exatas: análise qualitativa para ensino fundamental e médio
Authors: Lopes Paulo César de Castro , Abreu Victor Raylander Pereira de , Streit Jorge Alfredo Cerqueira , Gameiro Samuel , Nunes Pablo Herisson Silva
Published: June 2023

Este trabalho aborda a importância do ensino de Machine Learning (ML) e Inteligência Artificial (IA) nas escolas de ensino médio e fundamental, devido ao seu grande impacto na sociedade e na vida cotidiana das pessoas, analisando o potencial do uso da tecnologia de ML na melhoria da aprendizagem em ciências exatas. A metodologia utilizada foi a pesquisa qualitativa, com revisão bibliográfica e entrevistas semiestruturadas, e contou com a participação de 15 professores de diferentes áreas do conhecimento. As respostas desses professores foram transcritas com o uso de software específico e então foram analisadas, resultando ainda em uma nuvem de palavras. Percebeu-se que a maioria dos professores não possuem conhecimentos das técnicas de ML para a aprendizagem dos alunos, mas ressalta-se que todos se mostraram interessados em aprender e utilizar tais técnicas com os alunos, principalmente para conseguir atrair mais a atenção dos alunos e utilizar novos recursos tecnológicos dentro da sala de aula. Notou-se que a falta de laboratórios e internet adequada são um grande empecilho para o uso dessas tecnologias. Apesar da falta de conhecimento dos professores, as novas tecnologias já são uma realidade na rotina dos alunos e da sociedade, sendo importante que essas tecnologias sejam utilizadas e ensinadas na escola, visando proporcionar um ensino mais eficiente, atualizado e abrangente para os alunos a fim de que possam evoluir com maior conhecimento e facilidade.
O Sateré-Mawé na perspectiva da Educação Profissional e Tecnológica
Authors: Machado Rômulo Ribeiro , Gomes Izaquiel Mateus Macedo , Silva Iara Batista da
Published: June 2023

Ao vislumbrar a história, cultura e sociedade do povo Sateré-Mawé, que tem trajetória ligada ao cultivo do guaraná, bem como com a história de Maués, somado à Educação Profissional e Tecnológica vemos margem para descrever como esse povo é visto pelos finalistas do Curso Técnico de Nível Médio na Forma Integrada em Agropecuária do campus Maués. Assim, partir de indagações presentes na educação, sociedade e cultura relativas as questões de hierarquias sociais impostas a pessoas diferentes fez com que essa pesquisa tenha como objetivo geral: descrever a visão que os finalistas do Curso em Agropecuária, do IFAM/CMA, no ano de 2022, tem em relação ao Povo Sateré-Mawé. Está pesquisa é qualitativa a partir do olhar dos estudos culturais. Quanto aos objetivos é uma pesquisa descritiva (GIL, 2002, p. 41). Quanto aos procedimentos é uma pesquisa bibliográfica, documental, e de levantamento. Quanto aos instrumentos de coleta de dados foram aplicados questionários fechados e abertos, e a observação participante. Como suporte teórico temos BOGDAN e BIKLEN (1991), SILVA (1999 e 2010) e AGUIAR (2007). A história e cultura do Povo Sateré-Mawé se confunde com a história da cidade de Maués, a segundo não existiria como é conhecida hoje sem o primeiro, contudo a valorização dada a cultura do guaraná não é a mesma dada a este povo, que dentro do discurso cordial apresentado vem camufladas palavras preconceituosas.
Qualidade ambiental do Riacho das Porteiras, Petrolina, PE - utilizando Protocolo de Avaliação Rápida
Authors: Alcântara Raylane Silva de , Macedo Fernanda da Silva , Braga Filho Leonardo José Paiva , Amorim Miriam Cleide Cavalcante de
Published: June 2023

Os riachos são de suma importância para o perímetro urbano, atuando não apenas como elemento da macrodrenagem, mas também como locais de lazer e paisagismo. Em detrimento da sua atuação dentro da área urbana, é importante analisar a qualidade da água e a situação de suas margens devido a influências antrópicas de caráter poluente. O Protocolo de Avaliação Rápida de Rios é uma ferramenta que auxilia o monitoramento ambiental dos sistemas hídricos a fim de obter informações qualitativas para um possível diagnóstico ambiental. O município de Petrolina-PE integra a Região de Desenvolvimento Integrada Polo Petrolina-PE/Juazeiro-BA, cuja atividade predominante é de cunho agrícola, devido a fruticultura irrigada. O sistema de macrodrenagem do município é composto por um conjunto de riachos que se estendem de norte a sul, da zona rural à urbana, e desaguam no rio São Francisco, como é o caso do Riacho das Porteiras. Tem sua origem no interior do município de Petrolina, dentro do perímetro irrigado Nilo Coelho, sendo elemento constituinte do sistema de macrodrenagem natural da área urbana e corpo receptor de efluentes de estações de tratamento de esgoto, além de escoamentos oriundos das áreas agricultáveis e receptor de cargas poluentes carreadas pela drenagem pluvial. Dessa forma, está sob a influência das atividades antrópicas do município. Uma vez aplicado o Protocolo de Avaliação Rápida, o riacho das Porteiras apresentou impactos causados principalmente pela presença de resíduos sólidos depositados ou lançados de forma inadequada.
Reflexões para uma pedagogia salutar na Educação Infantil
Authors: Ferreira Jaqueline Rodrigues , Carvalho Alonso Bezerra de , Santos Jessyca Eiras Jatobá , Gohar Amna , Camoleze Naiana Leme
Published: June 2023

Nos dias de hoje observamos na escola a necessidade de superação de práticas escolarizadas, conteudistas e racionalistas, desde a Educação Infantil. Pois, compreendemos neste estudo que estas práticas interferem sobre o desenvolvimento das crianças, distanciando-as de se desenvolver a partir da mobilização da imaginação, do pensamento infantil e de diferentes linguagens estéticas. Ademais, em virtude da atual crise ambiental, observamos a necessidade de se pensar no desenvolvimento da criança a partir do contato e observação de processos da natureza. Tendo em vista tais problemáticas, as expressões do pensamento na primeira infância se constituem de linguagens estéticas. Logo, o contato com a natureza na Educação Infantil, contribui para o desenvolvimento da linguagem estética nas crianças, respeitando a cultura da infância. Ao considerarmos estas reflexões, este estudo utilizará a abordagem de revisão bibliográfica, tendo como objetivos compreender e discutir sobre o paradigma da racionalidade e do dualismo sociedade e natureza, ambos incutidos na escola, sobretudo, a partir da modernidade.
Educação ambiental e Sustentabilidade: Promovendo a Responsabilidade Ambiental
Authors: Buose Brenda , Buose Gabriellin
Published: June 2023

Esse trabalho tem por objetivo demonstrar a relação entre a educação ambiental e a sustentabilidade, bem como evidenciar a importância da educação ambiental para a sustentabilidade, temática essa exposta frequentemente no cotidiano e mídias sociais. Educação ambiental pode ser entendida como uma metodologia, em que cada pessoa pode assumir e adquirir o papel de membro principal do processo de ensino ou aprendizagem. O enfraquecimento dos recursos naturais nos ecossistemas e seus desgastes demandam intervenções proativas baseado na dualidade homem e natureza. Diversas discussões acerca da a educação ambiental emerge desde a década de 60, e de certo modo buscam alternativas sustentáveis, para tentar mudar a relação do homem com a natureza e tentar minimizar os impactos ambientais. Assim, o trabalho utiliza-se de metodologia qualitativa e foi desenvolto por meio de uma pesquisa bibliográfica reflexiva sobre a necessidade da educação ambiental aliada à sustentabilidade. Desse modo, sua relevância se dá na importância da discussão do processo de educação ambiental, bem como a exigência de mudança do comportamento humano com a natureza e sustentabilidade. Para tanto, o arcabouço teórico está amparado em (RAMOS, 2010; LEFF, 2001; TREVISOL, 2003), dentre outros. Nesse sentido, acredita-se que os resultados contribuirão para impulsionar a evolução intelectual do ser humano voltada para essa temática, além de promover uma conscientização do que realmente pode-se entender sobre o que é sustentabilidade e educação ambiental.
O impacto do Marketing Digital e tecnologias na gestão de Micro e Pequenas Empresas no contexto pós pandemia da Covid-19
Authors: Pereira Dionisio Francisco , Matos Rayllandr Félix de , França Gabriela Dourado , Streit Jorge Alfredo Cerqueira
Published: June 2023

O presente artigo faz um estudo sobre como o Marketing Digital e como as tecnologias podem contribuir na gestão de micro ou pequena empresa, visto que são ferramentas de crescimento e ganho de competitividade, neste sentido podem impulsionar o crescimento no mercado. O objetivo da pesquisa foi identificar as mudanças ocorridas na gestão das Micro e Pequenas Empresas (MPE) para manutenção do negócio durante e após a pandemia da Covid-19. A metodologia da pesquisa adotada foi qualitativa, aplicada, descritiva cujo procedimento para coleta de dados envolveu entrevistas semiestruturadas e observação não participante com cinquenta e uma empresas no município de Santo Antônio do Descoberto - GO. A pesquisa constatou que as empresas da cidade conhecem as ferramentas de marketing digital, porém não a utilizam de forma eficiente para poder melhorar suas relações com os clientes e com o mercado. Assim, o presente paper é capaz de contribuir tanto para a academia quanto para gestores. Afinal, sugestões de estudos futuros foram elencados, assim como práticas de gestão foram mencionadas a fim de contribuir para a superação de momentos de crise.
Uma discussão teórica sobre o Plano de Adaptação Climática
Authors: Paiva Larissa Carla Souza , Ferreira Cássia de Castro Martins
Published: June 2023

A adaptação frente às mudanças climáticas é um importante foco de direcionamento do planejamento urbano e para o enfrentamento de vulnerabilidades no ambiente urbano. Entretanto, esse é um processo longo, dispendioso, que demanda movimentação de diversos setores dentro da esfera pública e privada. Os Planos de Adaptação Climática vêm sendo criados por diversos países e cidades no intuito de guiar a construção de meios para permitir que a demanda climática seja abordada. O presente estudo busca através de um breve levantamento bibliográfico e teórico, entender melhor a necessidade de criação de planos voltados a esse intuito, e conceber a relação do tratamento ambiental e climático dentro do contexto do planejamento urbano. Para então levantar aspectos importantes de planos já em andamento, e a necessidade de ampliação da criação destes em mais cidades. E pontua questões fundamentais dos planos em evidência e analisa criticamente pontos de difícil abordagem nas cidades de países em desenvolvimento, como é o caso do Brasil.
Análise da percepção da população sobre o meio ambiente em um munícipio no oeste do Paraná
Authors: Ramos Jefert Alan Santanelli , Iared Valéria Ghisloti
Published: June 2023

Visando investigar a percepção da população diante dos temas ambientais, elaboramos um questionário, baseado na pesquisa realizada em 2012, intitulada O que o brasileiro pensa sobre o meio ambiente e o consumo sustentável. O roteiro contou com 19 questões com várias alternativas, sendo aplicado com 42 pessoas de diversas faixas etárias, variando de 18 a 78 anos no município de Palotina, oeste do Paraná. Os locais escolhidos para o desenvolvimento da pesquisa foram praças públicas com atrativos culturais e recreativos na cidade e, portanto, com um grande fluxo de pessoas. A pesquisa foi realizada nos meses de dezembro de 2022 a janeiro de 2023. Os resultados apontaram que os munícipes buscam por informações referentes as questões ambientais na internet e reconhecem alguns temas ambientais, como desenvolvimento sustentável, áreas protegidas e destruição da biodiversidade. Todavia, quando questionados sobre a conceituação dos termos, muitos respondentes não souberam desenvolver a ideia ou opinar sobre o assunto. Foi possível observar que os entrevistados estão cientes dos problemas ambientais de sua região e no Brasil, porém, as medidas que podem e poderiam ser tomadas diante desses problemas, e de quem é a responsabilidade pela solução desses problemas demonstram pouco potencial de mobilização social. Essa percepção e empatia em relação à questão ambiental e compreensão superficial de quais são as possibilidades de enfrentamento são recorrentes em outras pesquisar realizadas no Brasil. A educação ambiental enquanto política pública que promova a mobilização e transformação social é uma das possibilidades para enfrentamento dessa situação apontada nos resultados.
Cytoplasmic amino acid profiles of clinical and ATCC 29213 strains of Staphylococcus aureus harvested at different growth phases
Authors: Alreshidi Mousa , Dunstan Hugh , Roberts Tim , Alreshidi Fayez , Hossain Ashfaq , Bardakci Fevzi , Snoussi Mejdi , Badraoui Riadh , Adnan Mohd , Alouffi Sultan , Saeed Mohd
Published: June 2023

The objective of the present investigation was to compare potential differences in cytoplasmic amino acid levels between clinical and ATCC 29213 strains of Staphylococcus aureus (S. aureus). The two strains were grown under ideal conditions to mid-exponential and stationary growth phases, after which they were harvested to analyze their amino acid profiles. Initially, the amino acid patterns of both strains were compared at the mid-exponential phase when grown in controlled conditions. At the mid-exponential phase, both strains shared common features in cytoplasmic amino acid levels, with glutamic acid, aspartic acid, proline and alanine identified as key amino acids. However, the concentration profiles of seven amino acids exhibited major variances between the strains, even though the total cytoplasmic levels of amino acids did not alter significantly. At the stationary phase, the magnitudes of the amino acids abundant in the mid-exponential phase were altered. Aspartic acid became the most abundant amino acid in both strains accounting for 44% and 59% of the total amino acids in the clinical and ATCC 29213 strains, respectively. Lysine was the second most abundant amino acid in both strains, accounting for 16% of the total cytoplasmic amino acids, followed by glutamic acid, the concentration of which was significantly higher in the clinical strain than in the ATCC 29213 strain. Interestingly, histidine was clearly present in the clinical strain but was virtually lacking in the ATCC 29213 strain. This study reveals the dynamic diversity of amino acid levels among strains, which is an essential step toward illustrating the variability in S. aureus cytoplasmic amino acid profiles and could be significant in explaining variances among strains of S. aureus.
Protocol for coarse grained simulation of protein ligand system using GROMACS v1
Authors: Purushotham Rao M
Published: June 2023

Coarse-grained (CG) simulations are a powerful tool for studying the behavior of biomolecular systems. They are becoming increasingly important tools for drug discovery, as they can be used to study a wide variety of systems over long timescales. CG simulations are faster than all-atom MD simulations, which allows researchers to study larger systems over longer timescales. They can also be used to study systems that are too large or too complex to be studied with all-atom MD simulations. Additionally, CG simulations can be used to study systems that are difficult or impossible to study experimentally. CG simulations are typically 100-1000 times faster than all-atom MD simulations. This protocol provides steps along with a video tutorial perform CG simulation for protein ligand system. The advantages and test cases are but not limited to identification of active site, detection of cryptic pockets on protein, competitive binding between two or more ligands and many more The link the video tutorial is available in https://youtu.be/xjfbA1G3PIM
KALİTE KÜLTÜRÜ ALANINDA TÜRKİYE’DE 1990 – 2022 DÖNEMİNDE YAYINLANAN ÇALIŞMALARIN BİBLİYOMETRİK ANALİZİ
Authors: Gümüş Betül
Published: June 2023

Kalitenin örgütsel faaliyetlerde içselleştirilmesine yönelik çalışmalarda “kalite kültürü”nün önemi gün geçtikçe artmaktadır. Bu çalışmanın temel amaçları; kalite kültürü konusunun akademik literatür alanyazınında ele alınış biçimini ve sıklığını saptamak, yapılan çalışmaların özelliklerini belirlemek ve bunlara ek olarak kalite kültürü konusunun ele alındığı ulusal ölçekteki çalışmaları derleyerek alanyazına katkı sağlamaktır. Bu amaçlar doğrultusunda Dergipark, Google Scholar ve YÖK Ulusal Tez Merkezinde “kalite kültürü” başlıklı çalışmalar üzerinden tarama yapılmış ve Türkiye’deki akademik araştırma dergilerinde, yüksek lisans ve doktora tezlerinde 1990-2022 (Ekim) yılları arasında yayınlanan “kalite kültürü” başlıklı bilimsel çalışmalar yayınların kaynak türleri, yayın yılı, yayın sıklığı, yazar bilgileri, yayın yapılan üniversiteler ve enstitüler ile yayınların anabilim dallarına göre dağılımları vb. özellikleri niceliksel analizi yöntemi olan bibliyometrik analiz yöntemi kullanılarak incelenmiştir. Araştırma sonucunda ilgili dönemde kurumlara kalite kültürü bilincini yerleştirmeye odaklanan ve kalite kültürü geliştirme süreçleri hakkında bilgi veren yayınlanmış 14 yüksek lisans tezi, 3 doktora tezi, 9 makale, 3 konferans yayını olmak üzere toplam 29 bilimsel çalışmaya ulaşılmış; konuyla ilgili çalışmaların en fazla yüksek lisans tezi seviyesinde yapıldığı, yayınların yıllara göre dağılımının dengesiz olduğu ve bu çalışmaların hem işletme ve sosyal bilimler alanında hem de eğitim alanındaki çalışmalara kıyasla çok yetersiz kaldığı ortaya çıkmıştır. Bu çalışmanın, kalite kültürü konusunda farkındalık oluşturacağı ve ilgili ulusal alanyazına genel bir bakış sunarak gelecek araştırmalar için bir yol haritası niteliği taşıyacağı düşünülmektedir.
MATEMATİK ÖĞRETMENİ ADAYLARININ MATEMATİK VE GEOMETRİ KAVRAMLARINA İLİŞKİN ÖĞRETME VE ÖĞRENME YAKLAŞIMLARININ METAFORLAR ARACILIĞIYLA BELİRLENMESİ
Authors: Akşan Kılıçaslan Elif
Published: June 2023

Son yıllarda metaforlar, bir bireyin karmaşık olarak gördüğü bir yapıya ait düşüncelerinin değerlendirilmesi olarak kullanılmaktadır. Bu perspektiften bakıldığında öğrencilerin zor olarak tanımladığı matematik ve geometri kavramlarına ilişkin, geleceğin öğretmeni olacak öğretmen adaylarının algılarının metaforlar aracılığıyla incelenmesi sayesinde bu kavramların öğretilmesinin ve öğrenilmesinin önündeki engellerin önüne geçilebileceği düşünülmektedir. Bu çalışmada da “Matematik öğretmeni adaylarının matematik ve geometri kavramına ilişkin öğretme-öğrenme yaklaşımları hangi kategorilerde toplanmaktadır?” sorusuna cevap aranmıştır. Bu araştırma, nitel araştırma desenlerinden fenomenoloji/olgu bilim deseni kapsamında yürütülmüştür. Araştırma 52 öğretmen adayı ile yürütülmüştür. Araştırma da veriler açık uçlu anket yardımıyla toplanmıştır. Öğretmen adaylarının matematik öğretme ve matematik öğrenmeye ilişkin metaforları incelendiğinde çaba metaforunun her iki alanda da tekrarlandığı tespit edilmiştir. Öğretmen adaylarının geometri öğretme ve geometri öğrenmeye ilişkin oluşturdukları metaforlarda deneyim metaforu ortak metafordur. Ayrıca hem öğretme hem de öğrenme için sürecin gerekliliğinde, ayrıntılara dikkat etmek ve farklı bakış açısı kazandırma metaforları dikkat çekmektedir.
PSİKOLOJİK SAHİPLENMENİN İŞE TUTKUNLUK ÜZERİNDEKİ ETKİSİNE YÖNELİK BİR ARAŞTIRMA
Authors: Sezen Esma , Ergun Özler Nezire Derya
Published: June 2023

Geçmişten günümüze değişen yaşam koşulları ve artan rekabet sonucunda örgütler sürekliliklerini korumak için işini severek yapan işe tutkun işgörenlere ihtiyaç duymaktadırlar. İşe tutkunluk; işgörenlerin yaptıkları işe en yüksek performans ile kendilerini vermeleri olarak tanımlanabilmektedir. İşe tutkunluk; dinçlik, adanmışlık ve yoğunlaşma olmak üzere üç boyuttan oluşmaktadır. Psikolojik sahiplenme; mülkiyet sahibi olmakla ilgili yasal veya yasal olmayan hakların bulunmadığı şartlarda yaşanan sahiplenme duygusu şeklinde tanımlanabilmektedir. Psikolojik sahiplenme; bölgecilik, öz yeterlilik, hesap verebilirlik, ait olma duygusu ve öz kimlik olmak üzere beş boyuttan oluşmaktadır. Bu çalışmanın amacı psikolojik sahiplenmenin işe tutkunluk üzerindeki etkisini belirlemektir. Yapılan analizler sonucunda psikolojik sahiplenmenin işe tutkunluk üzerinde pozitif yönde anlamlı bir etkisi olduğu tespit edilmiştir.
Strength characteristics of post-stump structures used to restore the crown part of teeth in a decompensated form of pathological abrasion
Authors: Romanov Maksim M. , Khafizov Irek R. , Suleymanov Alfred M. , Khafizov Ildar R. , Khafizov Rais G.
Published: June 2023

BACKGROUND: Pathological abrasion of hard dental tissues is quite common and can result in the partial or complete destruction of tooth crown, followed by disturbances in the entire dentoalveolar system. Such conditions are difficult to treat because both the esthetic component and functional usefulness must be restored, which is not always possible to achieve in the long term. Currently, various methods in dentistry are used to restore the lost crown part in patients with a decompensated form of pathological tooth abrasion by using various types of pins and pin structures, which do not always allow achieving positive long-term results because of failure and breakage during operation.
AIM: To assess the strength characteristics of various stump pin inlays and stump structures.
MATERIALS AND METHODS: Experimental studies of the strength characteristics of various types of stump pin structures were conducted. For this, 45 samples of stump pin structures were made for testing on a ZMGI 250-kp tensile testing machine.
RESULTS: Experimental results revealed the magnitude of the stress at which sample destruction occurs.
CONCLUSION: The study obtained information on the strength of various stump pin structures, which are important in tooth-preserving technologies.
The Implementation of Computational Thinking on Mathematics Learning Research: A Systematic Literature Review
Authors: Mukhibin Ahmad , Juandi Dadang
Published: June 2023

The aim of this study is to describe the implementation of computational thinking research results on mathematics learning in Indonesia. The method used in this study is a systematic literature review (SLR) by using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) protocol. The sample consists of 25 results of computational thinking research on mathematics learning, the sample is journal articles and proceedings published in 2019-2023. The description of this research will be reviewed based on the year of research, the level of education, research location, and research methods used. The results of the study show that (1) computational thinking research on mathematics learning has increased every year where 2022 become the year with the most number of publications, there are 15 articles, (2) 32% (8 articles) of computational thinking research on mathematics learning is conducted at the university level, (3) East Java is the province with the most research on computational thinking on mathematics learning, with 7 studies, (4) quantitative method is the method most frequently used in computational thinking research on mathematics learning in Indonesia, there are 12 studies that used quantitative method, and (5) students are able to perform abstraction and algorithm processes. However, they still have difficulty in performing the decomposition and pattern recognition processes.
PHOTOLUMINESCENCE OF TAUTOMERIC FORMS OF NANOPARTICLE ENSEMBLES OF DYES BASED ON THE 4-VALENCE STANNUM COMPLEXES IN POROUS SILICA GLASS
Authors: Doycho I. K. , Gevelyuk S. A. , Rysiakiewicz-Pasek E.
Published: June 2023

Luminescence of tautomeric forms of dyes based on the 4-valence stannum complexes was researched. Symmetry of photoluminescence spectra of different tautomeric forms relative to direction of reading of atom positions in the hydrazide fragment was found clockwise or anti clockwise. It was determined that the illumination of nanoparticle ensembles of dyes in A-type porous silica glass is always more intensive than in appropriate solution. It was shown that the luminescence intensity of tautomeric forms increases, if the substituent comes nearer to the coordination set irrespective of type and nature of substituent and type of coordination set. At the same time, change of illumination energy of tautomeric forms depends on both type and nature of substituent and coordination set. The results were explained by the development of inner surface of matrix and also by the features of atom disposition in dye molecule and by interaction between them.
NEW NONLINEAR ANALYSIS, CHAOS THEORY AND INFORMATION TECHNOLOGY APPROACH TO STUDYING DYNAMICS OF THE THE ERBIUM ONE-RING FIBRE LASER
Authors: Prepelitsa G. P.
Published: June 2023

Within new non-linear analysis, chaos theory and information technology approach it is numerically investigated chaos dynamics generation in the erbium one-ring fibre laser (EDFL, 20.9 mV strength, l = 1550.190 nm) with the control parameters: the modulation frequency f and dc bias voltage of the electro-optical modulator. It is shown that in depending upon f, V values there are realized 1-period (f = 75 MHz, V = 10 V and f = 60 MHz, V = 4 V), 2-period (f = 68 MHz, V = 10 V or f = 60 MHz, V = 6 V), chaotic (f = 64 MHz, V = 10 V and f = 60 MHz, V = 10 V) regimes. There are calculated the Lyapunov’s exponents, correlation, embedding, Kaplan-York dimensions, Kolmogorov entropy. Theoretically it is shown that a chaos in the erbium fiber laser device is generated via intermittency by increasing the DC bias voltage and period-doubling bifurcation by reducing the modulation frequency.
RELATIVISTIC THEORY OF SPECTRA OF PIONIC ATOMS: RADIATION TRANSITION PROBABILITIES
Authors: Serga I. N.
Published: June 2023

A new theoretical approach to the description of spectral parameters pionic atoms in the excited states with precise accounting relativistic, radiation and nuclear effects is applied to the study of radiation parameters of transitions between hyperfine structure components. As an example of the present approach presents new data on the probabilities of radiation transitions between components of the hyperfine structure transitions 5g-4f, 5f-4d in the spectrum of pionic nitrogen are presented and it is performed comparison with the corresponding theoretical data by Trassinelli-Indelicato.
RAMAN SCATTERING IN NANOSCALE TIN DIOXIDE
Authors: Grinevich V. S. , Filevska L. M.
Published: June 2023

The Raman scattering spectra peculiarities are analyzed for nanosized samples of tin dioxide using the authors’ own research and the available literature. The presented results show the series of differences in RS spectra in the nanoobjects in comparison with the bulk material. The principle peculiarities comprise: the broadening of peaks, the spectra ‘washing-out’ (the notable dispersion presence), the peaks shifting to the short waves part from the basic positions, the new lines appearance which are not specific for the bulk SnO2. The principle reason for the deviations is quantum-size effect of the spatial confinement for phonons. The oxygen vacancies notably influence the shape and intensity of RS spectra for studied materials. New bands in the low-frequency part of the spectrum are conditioned by the nanoparticles’ normal vibrations.
RELATIVISTIC AND NONRELATIVISTIC APPROACHES IN THEORY OF PERMITTED BETA-TRANSITIONS: AN EFFECT OF ATOMIC FIELD ON FERMI AND INTEGRAL FERMI FUNCTIONS VALUES
Authors: Dubrovskaya Yu. V. , Khetselius O. Yu. , Ignatenko A. V. , Sukharev D. E.
Published: June 2023

Within a new optimized gauge-invariant Dirac-Fock approach it is considered a problem of computing the permitted beta transition probabilities and estimating a quality of computing the Fermi and integral Fermi functions in dependence upon the type of the atomic self-consistent field. It is shown that for small and middle values for the nuclear charge (Z<40) the difference between data obtained from other methods is low (hundredths of %). At the large Z (till Z~ 95; for example the beta decay 241Pu-241Am) calculation in a case of the HFSrel field gives 0.5% lower value for F, and respectively in a case of the GIDF field - 0.8%, compared with the non-relativistic HFSnerel value. This difference is explained by an effect of the squeezing for relativistic orbitals.
THE PROCESSES ASSOCIATED WITH THE BIFURCATION IN THE CURRENT-VOLTAGE CHARACTERISTICS
Authors: Simanovych N. S. , Karakis Y. N. , Kutalova M. I. , Chebanenko A. P. , Zatovskaya N. P.
Published: June 2023

The mechanisms leading to the intersection of the dark and light current-voltage characteristics and related phenomena has been considered. The possibility of participation in it as non-equilibrium carriers in the case of solar cells, and the contribution of the equilibrium charge when the temperature impact on the reference diode has been shown. Models explaining the observed features has been built.
THE RADIATIVE VACUUM POLARIZATION CONTRIBUTION TO THE ENERGY SHIFT OF SOME LEVELS OF THE PIONIC HYDROGEN
Authors: Chernyakova Yu. G. , Vitavetskaya L. A. , Bashkaryov P. G. , Serga I. N. , Berestenko A. G.
Published: June 2023

Calculating the radiative contribution due to the vacuum polarization effect to energy value for some levels in pionic hydrogen atom including in particular the main Uehling-Serber and the high-order Källen-Sabry and Wichmann-Kroll corrections has been carried out using the modified Uehling-Serber potential. The values for some characteristic energy corrections to 1s, 2p, 3p, 4p states of the pion hydrogen (in particular, radiation contributions and contributions due to the finite size of the proton and pion are presented and compared with alternative data by Schlesser-Indelicato et al.
ON INTENSITY OF EMISSION OF THE METALS ATOMS IN A HYDROGEN-OXYGEN FLAME IN A PRESENCE OF A MAGNETIC FIELD
Authors: Florko T. A. , Glushkov A. V. , Lopatkin Yu. M. , Ambrosov S. V. , Kozlovskaya V. P.
Published: June 2023

An intensity of emission for the alkali atoms (potassium and rubidium) in the hydrogen-oxygen flame under action of a magnetic field is theoretically estimated with using quantum defect approximation in operator perturbation theory for atomic systems in external magnetic field. New estimates for the intensities of emission of the lines for К (D1: 42 P1/2 - 42 S1/2 and D2: 42 P3/2 - 42 S1/2) and Rb (1: 52 P3/2 - 52 S1/2 і 2: 62 P3/2 - 52 S1/2) are presented. The maximum value of the magnetic effect for D2 line of К atom for σ - polarization is equal 1.65, for π -polarization— 1.24. For Dl line the maximum value is equal 1.36 for both polarizations.
SPECTROSCOPY OF THE COMPLEX AUTOIONIZATION RESONANCES IN SPECTRUM OF BERYLLIUM
Authors: Smirnov A. V. , Buyadzhi V. V. , Ignatenko A. V. , Glushkov A. V. , Svinarenko A. A.
Published: June 2023

We applied a generalized energy approach (Gell-Mann and Low S-matrix formalism) combined with the relativistic multi-quasiparticle (QP) perturbation theory (PT) with the Dirac-Kohn-Sham zeroth approximation and accounting for the exchange-correlation, relativistic corrections to studying autoionization resonances in the beryllium Be spectrum, in particular, we predicted the energies and widths of the number of the Rydberg resonances. There are presented the results of comparison of our theory data for the autoionization resonance 3s3p 1 Р0 with the available experimental data and those results of other theories, including, method Greene, by Tully-Seaton-Berrington and by Kim-TayalZhou-Manson etc.
DEPENDENCE OF PHOTOLUMINESCENCE OF NANOPARTICLE ENSEMBLES OF STANNUM (IV) COMPLEXES IN SILICA POROUS MATRIX ON CONCENTRATION OF SATURATING SOLUTION
Authors: Gevelyuk S. A. , Rysiakiewicz-Pasek E. , Doycho I. K.
Published: June 2023

Dependence of photoluminescence of high-molecular nanoformations of dyes on the basis of stannum (IV) complexes in porous glass on concentration of saturating solution has been researched. The results have been compared with photoluminescence of corresponding solutions, in which the effect of concentration quenching, was due to the Franck-Condon principle, was observed. It was found that intensity of luminescence for nanoparticle ensembles was always higher than in solution. At that, decrease of luminescence intensity alongside with concentration growth of saturating solution was observed as well. However, the observed dependence was more complicated than in solution. It can be explained by the fact that the pores with maximal sizes are filled at large concentrations of saturating solution of dye. The dye particles act almost the same as in solution, where photoluminescence is fainter, in such pores.
THE HYPERFINE STRUCTURE AND OSCILLATOR STRENGTHS PARAMETERS FOR SOME HEAVY ELEMENTS ATOMS AND IONS: REVIEW OF DATA BY RELATIVISTIC MANY-BODY PERTURBATION THEORY CALCULATION
Authors: Khetselius O. Yu. , Zaichko P. A. , Mansarliysk V. F. , Antoshkina O. A.
Published: June 2023

The energies and hyperfine structure constants for some heavy Li-like multicharged ions are calculated within the relativistic many-body perturbation theory formalism with a correct and effective taking into account the exchange-correlation, relativistic, nuclear and radiative corrections. The magnetic inter-electron interaction is accounted for in the lowest order on a2 (a is the fine structure constant) parameter. The Lamb shift polarization part is taken into account in the modified Uehling-Serber approximation, the Lamb shift self-energy part - within the generalized Ivanov-Ivanova procedure. The combined relativistic energy approach and many-body perturbation theory with the zeroth order optimized one-particle approximation are used for computing the Li-like ions (Z=11-42,69,70) and Cs energies and oscillator strengths, in particular, of radiative transitions from the ground state to the lowexcited and Rydberg states 2s1/2 – np1/2,3/2, np1/2,3/2-nd3/2,5/2 (n=2-12) in the Li-like ions. A comparison of the calculated oscillator strengths with available theoretical and experimental data is performed.
RELATIVISTIC THEORY OF SPECTRA OF HEAVY PIONIC ATOMIC SYSTEMS WITH ACCOUNT OF STRONG PION-NUCLEAR INTERACTION EFFECTS: 93Nb, 173Yb, 181Ta , 197Au
Authors: Bystryantseva A. N. , Khetselius O. Yu. , Dubrovskaya Yu. V. , Vitavetskaya L. A. , Berestenko A. G.
Published: June 2023

It is presented a consistent relativistic theory of spectra of the pionic atoms on the basis of the Klein-Gordon-Fock with a generalized radiation and strong pion-nuclear potentials. There are presented data of calculation of the energy and spectral parameters for pionic atoms of the 93Nb, 173Yb, 181Ta , 197Au, with accounting for the radiation (vacuum polarization), nuclear (finite size of a nucleus ) and the strong pion-nuclear interaction corrections. The measured values of the Berkley, CERN and Virginia laboratories and alternative data based on other versions of the Klein-Gordon-Fock theories with taking into account for a finite size of the nucleus in the model uniformly charged sphere and the standard Uhling-Serber radiation correction and optical atomic theory are listed too.
THE ELECTRICAL CHARACTERISTICS OF NANOSCALE SnO2 FILMS, STRUCTURED BY POLYMERS
Authors: Filevska L. M. , Chebanenko A. P. , Grinevych V. S. , Simanovych N. S.
Published: June 2023

The electrical characteristics of nanoscale tin dioxide layer were studied. They showed the significant differences in the conductivity values of films in vacuum and in air, which indicates a visible influence of adsorption interaction with oxygen in the air. The dark current temperature dependence activation character was established due to different donors type centers contribution to the conductivity which are “shallow” at low temperatures and are more “deep” at high temperatures. The values of the energy depth of these levels were calculated. The films’ conductivity changes at their heating at vacuum and at the subsequent cooling at vacuum till the initial temperature are reversible and repeatable many times, which testifies the stability of the electrical characteristics of the SnO2 films and is perspective for use of the layers as adsorptive-sensitive elements of gas sensors.
NEW RELATIVISTIC APPROACH TO CALCULATING THE HYPERFINE LINE SHIFT AND BROADENING FOR HEAVY ATOMS IN THE BUFFER GAS
Authors: Mansarliysky V. F.
Published: June 2023

It is presented a new consistent relativistic approach to hyperfine structure line collision shift and broadening for heavy atoms in an atmosphere of the buffer inert gas, based on the atomic gauge-invariant relativistic perturbation theory and the optimal construction of the interatomic potential function within exchange perturbation theory. As illustration it is applied to calculating the interatomic potentials, hyperfine structure line collision shift for heavy atoms in an atmosphere of the buffer inert gas. The accurate account for the relativistic and exchange-correlation and continuum pressure effects is necessary for an adequate description of the energetic and spectral properties of the heavy atoms in an atmosphere of the heavy inert gases.
NONLINEAR CHAOTIC DYNAMICS OF ATOMIC AND MOLECULAR SYSTEMS IN AN ELECTROMAGNETIC FIELD
Authors: Ignatenko A. V. , Kuznetsova A. A. , Kvasikova A. S. , Glushkov A. V. , Gurskaya M. Yu.
Published: June 2023

It has been numerically studied a chaotic dynamics of diatomic molecules (on example of the GeO molecule in an infrared field) and some laser systems. An advanced generalized techniques such as the wavelet analysis, multi-fractal formalism, mutual information approach, correlation integral analysis, false nearest neighbour algorithm, the Lyapunov exponent’s (LE) analysis, and surrogate data method, prediction models etc is used. It has been shown that systems exhibit a nonlinear behaviour with elements of a low-or high-dimensional chaos. There are firstly presented the numerical data on topological and dynamical invariants of chaotic systems, in particular, the correlation, embedding, Kaplan-York dimensions, LE, Kolmogorov’s entropy etc for GeO molecule in an electromagnetic infrared field in the chaotic regime.
NEW NONLINEAR ANALYSIS, CHAOS THEORY AND INFORMATION TECHNOLOGY APPROACH TO STUDYING DYNAMICS OF CHAIN OF QUANTUM AUTOGENERATORS
Authors: Prepelitsa G. P. , Brusentseva S. V. , Duborez A. V. , Khetselius O. Yu. , Bashkaryov P. G.
Published: June 2023

Chaos-geometric approach that consistently includes a number of new or improved known methods of analysis (the correlation integral, the fractal analysis, algorithms of the average mutual information, and false nearest neighbors, the Lyapunov exponents analysis, the Kolmogorov entropy, the method of surrogate data, a set of the spectral methods, a neural network algorithms, etc. .) is used to solve the problem of quantitative modeling and analysis of chaotic dynamics of a chain of two quantum autogenerators. There are theoretically studied a chaos scenario generation and obtained quantitative data on the dynamic and topological invariants of the system in the chaotic regime.
RELATIVISTIC THEORY OF EXCITATION AND IONIZATION OF HEAVY ALKALI RYDBERG ATOMS IN A BLACK-BODY RADIATION FIELD: NEW DATA
Authors: Zaichko P. A.
Published: June 2023

The combined relativistic energy approach and relativistic many-body perturbation theory with the zeroth Dirac-Fock potential approximation are used for computing the thermal Blackbody radiation ionization characteristics of the alkali Rydberg atoms, in particular, the rubidium and caesium in Rydberg states with principal quantum number n = 20-100. Preliminary application of theory to computing ionization rate for the Rydberg sodium atom in the have demonstrated physically reasonable agreement between the theoretical and experimental data. The accuracy of the theoretical data is provided by a correctness of the corresponding relativistic wave functions and accounting for the exchange-correlation effects.
ELECTRON-COLLISIONAL SPECTROSCOPY OF ATOMS AND IONS IN PLASMA: Be-LIKE IONS
Authors: Buyadzhi V. V. , Chernyakova Yu. G. , Smirnov A. V. , Tkach T. B.
Published: June 2023

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FEATURES of VOLT-FARAD DEPENDENCE OF NONIDEAL HETEROJUNCTIONS BARRIER CAPACITY
Authors: Borschak V. A. , Kutalova M. I. , Zatovskaya N. P. , Vilinskaya L. N. , Karpenko A. O.
Published: June 2023

Abnormal dependence of volt-farad characteristics of «nonideal» heterojunctiоn barrier capacity is investigated. It is shown that in heterojunctions with the big concentration and non-uniform distribution of defects tunnel currents essentially influence on the barrier capacity size. The model for an explanation of abnormal barrier capacity dependence on the voltage, using tunneling-recombination mechanism of carriers carry through the area of a spatial charge is offered. The put forward assumptions put in a model basis, are confirmed experimentally.
EFFECT OF WATER VAPORS ON THE TIME-RESOLVED SURFACE CURRENT INDUCED BY AMMONIA MOLECULES ADSORPTION IN GaAs P-N JUNCTIONS
Authors: Ptashchenko O. O. , Ptashchenko F. O. , Gilmutdinova V. R.
Published: June 2023

The time-resolved surface current in an n-conducting channel, due to ammonia and water molecules adsorption in GaAs p-n structures was studied. It is shown that the presence of water vapors in the ambient atmosphere strongly affects the current decay curves after the ammonia vapors removal. The current decay curve in this case has three exponential components with different characteristic times: τ1 = 30 s, τ2 = 1900 s and τ3 = 9400 s, as well as a component with τ4 >> τ3. The results are explained in terms of a simple model taking into account a dynamic equilibrium between the free electrons in the conducting channel and electrons on slow surface centers. Each decay curve exponential component is due to the emptying of corresponding centers. The characteristic time of a current decay curve exponential component is determined by the depth and density of the corresponding surface levels, as well as the conducting channel thickness.