bluuebunny/crossref_metadata_2025 huggingface dataset:
Avaliação de ultrafiltração como alternativa à flotação por ar dissolvido no pós-tratamento do efluente de lodos ativados — estudo em escala piloto na estação de tratamento de esgoto Brasília norte
Authors: Bertolossi Vinicius Mendes , Neder Tatiana Finageiv , Brandão Cristina Celia Silveira
Published: December 2021

RESUMO A melhoria da qualidade dos efluentes das estações de tratamento de esgotos Brasília Norte e Sul tornou-se premente após o corpo receptor dos seus efluentes, o lago Paranoá, passar a ser utilizado como manancial de abastecimento. Este trabalho apresenta estudo comparativo entre o tratamento terciário por ultrafiltração precedido por coagulação em escala piloto e a flotação por ar dissolvido existente na estação de tratamento de esgotos Brasília Norte. A instalação piloto de ultrafiltração e a flotação por ar dissolvido foram alimentadas pela mesma matriz, o efluente da etapa de lodos ativados das estações de tratamento de esgotos Brasília Norte, após coagulação. Foram avaliadas sete condições operacionais da instalação piloto de ultrafiltração variando-se a vazão, o tempo de operação entre limpezas e a duração da limpeza física. O comportamento operacional e a qualidade do efluente produzido foram monitorados. O aumento do fluxo do permeado (de 40,2 para 50,6 e 61,0 L.m−2.h−1) e do tempo de operação entre as limpezas (de 25 para 38 e 50 min), bem como a redução da duração da retrolavagem (de 80 para 60 e 30 s) resultaram em evolução mais intensa da pressão transmembrana. A ultrafiltração foi mais eficiente do que a flotação por ar dissolvido na remoção de turbidez, sólidos suspensos totais, demanda química de oxigênio e fósforo total, com ganho médio de remoção de 9,4, 13,0, 8,5 e 12,8%, respectivamente. Destaca-se a remoção de coliformes na ultrafiltração, 3,4 log superior à da flotação por ar dissolvido. A utilização da ultrafiltração como alternativa à flotação por ar dissolvido apresenta a vantagem de produzir efluente de melhor qualidade, particularmente no aspecto microbiológico, com menor flutuação da qualidade, porém o tratamento e a destinação do lodo produzido pela ultrafiltração devem ser equacionados.
Influência da pré-cloração na clarificação de águas para abastecimento utilizando coagulante à base de tanino
Authors: Silveira Jéssica Rodrigues , Souza Valéria Menezes de , Cuba Renata Medici Frayne , Teran Francisco Javier Cuba
Published: December 2021

RESUMO Diferentes técnicas de tratamento de água destinada ao abastecimento público, como a pré-cloração e o uso de coagulantes orgânicos, têm sido relatadas como alternativas econômica, técnica e ambientalmente viáveis. Entretanto, o resultado da interação entre esses processos deve ser estudado para sua aplicação com segurança. Dessa forma, este estudo objetivou avaliar a influência da pré-cloração na clarificação de água para abastecimento público, utilizando coagulante à base de tanino. Os ensaios foram conduzidos em jar test com o uso de Tanfloc SG como coagulante, variando as dosagens de 2,5 a 45,0 mg L−1, e de oxidante hipoclorito de sódio (NaClO) nas concentrações de cloro residual livre (HClO(NaClO)) de 0,8 e 5,0 mg L−1, no tratamento da água do ribeirão João Leite. As dosagens ótimas de coagulante foram determinadas para as seguintes condições de tratamento: adição somente de tanino; tanino e NaClO aplicados simultaneamente; e tanino adicionado após 30 min da pré-cloração. Nessas condições, o pH de coagulação foi analisado de 6,0 a 8,5. Foram avaliados parâmetros como turbidez, cor aparente, pH e HClO(NaClO). A melhor condição de tratamento com pré-cloração foi a adição simultânea de NaClO e coagulante tanino nas dosagens de 0,8 mg L−1 (HClO(NaClO)) e 10,0 mg L−1, respectivamente, com remoção de turbidez de 71,6% e cor aparente de 62,7%. Os resultados demonstraram que a pré-cloração afetou negativamente o processo de tratamento, e para maior concentração de HClO(NaClO) maior foi a dosagem de tanino requerida, sem apresentar aumento significativo nas eficiências de remoção de turbidez e cor aparente.
Desenvolvimento de mudas de Mimosa caesalpiniifolia Benth e Amburana cearensis (Fr. All) A.C Smith. irrigadas com esgoto doméstico tratado
Authors: Silva Bruna Thalya da , Silva Júnior Francisco das Chagas Gomes da , Silva Maria Amanda Menezes
Published: December 2021

RESUMO Avaliaram-se os efeitos da aplicação de diferentes diluições de um esgoto doméstico tratado como água de reúso no desenvolvimento de mudas de Mimosa caesalpiniifolia Benth e Amburana cearensis (Fr. All) A.C Smith. O experimento se deu por meio da utilização do arisco como substrato e da irrigação com os tratamentos compostos por cinco diluições de água de reúso com água de abastecimento, com cinco repetições cada, sendo eles: T1 (100% água de reúso + 0% água de abastecimento), T2 (75% água de reúso + 25% água de abastecimento), T3 (50% água de reúso + 50% água de abastecimento), T4 (25% água de reúso + 75% água de abastecimento) e T5 (0% água de reúso + 100% água de abastecimento). Os efeitos das diferentes diluições do esgoto tratado foram avaliados nas seguintes características funcionais: número de folhas, tamanho da raiz principal, quantidade de matéria seca das folhas, da raiz principal e das raízes secundárias. Além disso, foram mensurados altura da planta e diâmetro do coleto durante 30, 60 e 90 dias. Os resultados obtidos para A. cearensis demonstraram que matéria seca das folhas e das raízes secundárias diferiram entre os tratamentos, sendo encontrados os maiores valores em T2, T3 e T4. Nos dados de diâmetro, ao longo do tempo ocorreu diferença significativa aos 90 dias para o tratamento T3. Para M. caesalpiniifolia, as diluições do esgoto não apresentaram diferença significativa entre os tratamentos. Desse modo, concluiu-se que o esgoto doméstico tratado proporcionou efeito positivo ou neutro no desenvolvimento, podendo ser uma fonte hídrica, na forma diluída ou concentrada, potencial para a irrigação de mudas dessas espécies.
Remoção de carbono orgânico dissolvido de águas filtradas com tratamento complementar por pré-oxidação com ozônio e adsorção em carvão ativado
Authors: Mavaieie Júnior Paulo Augusto , Benetti Antônio Domingues
Published: December 2021

Resumo Este trabalho teve como objetivo avaliar as remoções de carbono orgânico dissolvido presente em águas filtradas de estação de tratamento de água com tratamento complementar por pré-oxidação com ozônio e adsorção em carvão ativado granular. Para o estudo de adsorção foi utilizado o método de ensaio rápido em coluna de escala reduzida, com carvão ativado produzido de cascas de coco. Realizou-se a comparação entre as curvas de ruptura para os ensaios com e sem aplicação de ozônio. Os resultados mostraram reduções nas concentrações de carbono orgânico dissolvido no início dos ensaios e após a passagem da água com e sem pré-ozonização pelas colunas ensaio rápido em coluna de escala reduzida seguida de incrementos progressivos das concentrações à medida que se aumentou o volume de leitos tratados. Na fase final dos ensaios, os aumentos de volume de leitos tratados não causaram mudanças significativas nas concentrações efluentes de carbono orgânico dissolvido. O mesmo comportamento foi observado com relação à absorção em radiação ultravioleta a 254 nm. O uso de ozônio previamente à adsorção em carvão ativado granular, usando o método ensaio rápido em coluna de escala reduzida, resultou em maiores reduções na absorbância da luz ultravioleta em 254 nm do que nas concentrações de carbono orgânico dissolvido. As absorbâncias específicas à radiação ultravioleta das amostras ozonizadas foram menores do que as que não receberam ozônio.
Reflexão acerca dos critérios que podem contribuir para a disseminação da COVID-19 em comunidades quilombolas rurais do estado de Goiás, Brasil
Authors: Scalize Paulo Sérgio , Bezerra Nolan Ribeiro , Oliveira Thaynara Lorrayne de , Baumann Luis Rodrigo Fernandes , Ruggeri Júnior Humberto Carlos , Basso Raviel Eurico , Santo Filho Kleber do Espírito , Chagas Isabela Moura , Aguiar Tales Dias , Vale Gabrielle Brito do , Braga Débora de Lima , Pinheiro Roberta Vieira Nunes
Published: December 2021

RESUMO O SARS-CoV-2 é facilmente disseminado por aerossóis e contato direto com pessoas contaminadas. Logo, as condições adversas em áreas rurais podem influenciar a propagação do vírus. Desta forma, estabeleceu-se uma reflexão acerca da disseminação da COVID-19 em função do hábito de lavar as mãos, das condições de saneamento, dos aspectos socioeconômicos e das condições habitacionais em 26 comunidades quilombolas rurais do estado de Goiás. Para isso foram levantadas informações in loco em 533 domicílios e aplicou-se a Analytic Hierarchy Process, utilizando-se critérios selecionados com base na literatura. As comunidades apresentaram uma priorização para a disseminação da COVID-19 variando de 14,9 x 10-3 (pior condição) a 64,3 x 10-3 (melhor condição), na qual a Comunidade José Coleto ocupou a posição mais desfavorável. Buracão mostrou um resultado mais satisfatório, sendo esta menos susceptível à disseminação da COVID-19. A melhoria nas condições de saneamento pode aumentar o hábito da higiene com as mãos, o que reduziria a disseminação da COVID-19 e de outras doenças infecciosas. Assim, a partir dos resultados obtidos, é perceptível a importância do empoderamento quanto aos hábitos de higiene, acesso à informação, saneamento básico e à saúde. Os gestores devem ter uma maior disposição para implantar infraestrutura e melhorar as condições dos critérios apresentados e discutidos neste trabalho.
Coalizão advocatória e aprendizado nas políticas públicas: as mudanças nas convicções centrais do PAIC
Authors: Sumiya Lilia Asuca , Sano Hironobu
Published: December 2021

Resumo O objetivo deste artigo é compreender o processo de formação de uma coalizão que levou o Programa de Alfabetização na Idade Certa (PAIC) do Ceará a se tornar uma política prioritária no estado. Foi adotado o modelo das coalizões advocatórias (ACF) para analisar o papel dos principais atores no desenvolvimento da coalizão, caracterizar seu sistema de crenças e o processo de aprendizagem na política. A pesquisa envolveu o levantamento de documentos institucionais do programa, teses e dissertações, notas taquigráficas de audiências públicas, matérias na mídia e entrevistas com os principais envolvidos. A análise da trajetória das principais ideias ao longo de dez anos, que se iniciou com a experiência dos gestores em Sobral, Ceará, em 1997, e culminou com sua chegada ao governo do estado, em 2007, permitiu caracterizar a composição de uma única coalização. A formação e a disseminação do conjunto de crenças ocorreram a partir da atuação do Comitê Cearense para a Eliminação do Analfabetismo Escolar (CCEAE), formando uma forte coalizão com participação de diversos especialistas e instituições, bem como de atores municipais. Foram identificadas três camadas de crenças e, com relação às convicções centrais da política pública, foram caracterizados sete componentes, divididos em dois períodos de análise. A mudança nas convicções centrais foi analisada a partir da perspectiva da aprendizagem nas políticas públicas, considerando o processo de reflexão dos principais atores.
A implementação do ensino remoto na pandemia: qual o lugar da educação especial?
Authors: Camizão Amanda Costa , Conde Patricia Santos , Victor Sonia Lopes
Published: December 2021

Resumo Este artigo tem como objetivo analisar o processo de implementação do ensino remoto com vistas à garantia do atendimento educacional especializado aos estudantes público-alvo da educação especial em tempo de pandemia da covid-19. Organiza-se com base nas experiências de duas docentes de dois municípios do Estado do Espírito Santo (ES). É um estudo documental, pois utiliza os registros produzidos pelas Secretarias de Educação. Diante da implementação do ensino remoto, surgiram alguns questionamentos, como: Por que as aulas precisam voltar? Quais as condições concretas de trabalho oferecidas aos professores da educação especial para a realização do ensino remoto? Como os municípios se organizaram para garantir o direito à educação do público-alvo da educação especial? Será que essas condições estão sustentando um trabalho inclusivo no contexto de pandemia? A produção e análise dos dados mostraram as possibilidades e limitações da implementação da educação especial na perspectiva da educação inclusiva, conforme orienta a política nacional de educação especial vigente. O estudo concluiu que a proposta de educação especial dos municípios não corresponde diretamente à proposta inclusiva prevista nas orientações anteriores ao período de pandemia. Se a proposta era estabelecer vínculos, os objetivos foram alcançados, mas, se ela se estende ao comprometimento com a aprendizagem e o desenvolvimento desses sujeitos, está bem longe de ser atingida.
Mass wind deployment in Egypt: the transformative energy hub among three continents
Authors: ElMaamoun Dina , Xydis George
Published: December 2021

Wind energy occupies a great chunk of the energy mix in most parts of the world. In this study, the challenges for distributed projects in communities and industrial areas are presented for Egypt and a comparison between the mass wind onshore and offshore deployment is unavoidable. In Egypt, plans have been devised to install large-scale projects, but the pace of development is slow. Furthermore, while the wind atlas of Egypt provides ample information on planning and deploying wind farms, developers of distributed wind would probably have never analysed small-scale sites, which may lead them to ignore the drawbacks while discussing the project and they may thereby end up losing money. Two cases used were selected for the analysis: industrial and offshore sites and community/residential sites. A detailed spatial analysis revealed that there are abundant wind resources and hidden potential in selected high wind–high gain areas of almost 40 GW of onshore and offshore wind projects that could make Egypt a unique energy hub among Africa, Europe and the Middle East.
A practical heat of hydration model for concrete curing for geotechnical applications
Authors: Liu Ryan Yin Wai , Taborda David M G , Fisher Anthony , Bourne-Webb Peter J
Published: December 2021

Thermal integrity profiling (TIP) is a common non-destructive technique to evaluate the quality of construction of piles by analysing the temperature fields due to heat of hydration from freshly cast concrete piles. For this process to be accurate, a reliable concrete heat of hydration model is required. This paper proposes a practical and simple technique to calibrate a four-parameter model for the prediction of concrete heat of hydration. This model has been shown to be able to reproduce the evolution of heat of hydration measured in laboratory tests, as well as field measurements of temperature within curing concrete piles, as part of a TIP operation performed at a site in London. With the simplicity of the model and the small number of model parameters involved, this model can be easily and quickly calibrated, enabling quick predictions of expected temperatures for subsequent casts using the same concrete mix.
Urfa Şehrindeki Geleneksel Hamamların Mimari Özellikleri
Authors: EKİNCİ DAĞTEKİN Emine
Published: December 2021

Roma döneminde eyalet başkenti olan ve Edessa Şehri olarak isimlendirilen Urfa’nın önemli yapılarından biri de tarihi hamamlarıdır. Kentte 497 yılında açık ve kapalı olarak yapılan hamamların varlığı bilinmektedir. Osmanlı döneminde şehir dışından gelen tüccarların yararlanmaları amacıyla çarşılar bölgesinde ve balıklı göllerden çıkan fazla suların aktığı güzergâh üzerinde çok sayıda hamam inşa edilmiştir. Kent arşivlerinde ismi geçen Bey Kapısı (İbn Maktûl), Mencek, Karaburç, Devekovan (Danakvan), Ayaklı, Kuloğlu, Paşa, Hacı Bey, Muharrem ve Meydan hamamları günümüze ulaşamamıştır. Osmanlı Dönemi’nde yapılan Sultan, Cıncıklı, Serçe, Arasta, Vezir, Velibey, Şaban ve Sultan Hamamı’na bitişik keçeci esnafının keçe yapımı için kullandıkları Keçeciler Hamamı günümüze ulaşabilen geleneksel hamamlardır. Urfa’daki geleneksel hamamlardan Vezir Hamamı Yusuf Paşa vakfına ait mülhak, Velibey Hamamı ise Velibey vakfının mülkiyetinde mazbut vakıf eseri olup diğer hamamlar özel şahıslara aittir. Velibey Hamamı 2006 yılında, Vezir Hamamı ise 2014 yılında Vakıflar Bölge Müdürlüğü denetimde onarılmıştır. Bu çalışmada, Bursa, İstanbul, Edirne hamamları gibi mimarlık tarihinin genel kaynakları içinde çok fazla yer bulamayan, Urfa kentinin tarihi ve kültürel mirasının bir parçası olan ve günümüze ulaşan geleneksel hamamların literatürde yer bulması, tanıtılması, mimarlık tarihi ve koruma çalışmalarında altlık olarak kullanılabilmesi amacıyla yapılan belgeleme çalışması paylaşılmıştır.
CANCIONES Y APRENDIZAJES EN EDUCACIÓN INICIAL
Authors: Mendívil Trelles Luzmila
Published: December 2021

El artículo presenta resultados parciales del análisis crítico de canciones acopiadas en una institución educativa pública de educación inicial ubicada en Lima Metropolitana. A partir de la consideración de las canciones como discursos, devela el rol de las canciones en la educación inicial. Presenta el análisis de las canciones religiosas y las canciones para regular la conducta, que fueron recopiladas en el trabajo de campo. El análisis evidencia el uso instrumental de las canciones en la práctica educativa diaria, llegando a instaurarse como herramientas de control simbólico al constituir una forma enmascarada de ejercer poder sobre los niños.
The Boxer Rebellion in Siberian Pre-Revolutionary Press (The Eastern Review as an Example)
Authors: Kalmina Lilia , Kuras Leonid
Published: December 2021

The article is devoted to the content analyses of materials covering Boxer rebellion in China, they were published in Irkutsk newspaper The Eastern Review, 1900–1901. Authors’ choice was motivated with three reasons. First, the newspaper covered Eastern Russian regions’ issues, as well as Russia’s policy in the Far East, where these regions were being involved. Secondly, Boxer rebellion was one of most important events at the turn of the XX century; it defined Russia’s strategy on its Eastern borders in terms of competition with Western European countries and Japan for economic and political influence in the Celestial Empire. Thirdly, Boxer rebellion in the Siberian regional press’s point of view was not studied properly, so it needs further research to understand a provincial newspaper activities process, never having experience in military operations coverage, these activities quite surprisingly required a new way of operation. We analyzed hundreds of texts on military actions in China, Chinese Imperial Court position, contradictions between allied powers, which took part in the suppression of the rebellion in view of of post-war establishment in the East. The main focus of the research was the transformation of the newspaper’s conception to meet the needs for military information; genres of published materials about the Boxer rebellion; information obtaining technology; the degree of its authenticity and objectivity. We also examined how editorial staff created Russia’s positive image as a disinterested peace-maker, though Russian geopolitical interests had been having lasting position on the Chinese territory. Mass-media development, usage of various methods to obtain information, inclusion of opinions of conflicting sides; responsibility before readers for coverage of events allowed the newspaper not only to display objective description of current events in China but also to forecast post-war development of the Far East.
The Strategy of Media Education Development of a Future Journalist as a Factor of Professionalism in the Digital Economy
Authors: Dyakina Anzhelika , Artemova Yulia
Published: December 2021

The article examined one of the priority areas of social development — media education. The transition to a new technological system has caused major changes in media education. Digitalization processes influence the system of higher vocational education and highlight the fact that media education should be aimed at developing students' skills relevant to new digital environment. The originality of the research is the fact that media education is one of the factors that ensures that students are able to adjust to innovative economy of the Russian Federation. The study examined the regional demand for trained media literate professionals. The research proposed a model of media education for students majoring in journalism and a special educational program to develop professional competencies taking into account the media discourse in the region. The article discussed one of the components of the model of strategically oriented media education — the integrative course of additional vocational education. We found that graduates who participated in media education program not only improved their professional competencies defined by the government standard, but also acquired additional skills such as the ability to form media culture of the target audience. This kind of focus of educational efforts increased their competitiveness in the regional labor market. The proposed model of media education of future journalists, which integrates information and communication environment of the university in sync with current industry requirements; media technologies as part of the core subjects, and the advanced training program that focuses on the management of media literacy of the audience, has shown its effectiveness. Teaching methodology presented by the authors develops value and belief system that has ongoing professional media education at its core. It also fosters the development of mass media culture in digital environment.
Predicción de resultados académicos con la aplicación nntool en Matlab utilizando redes neuronales artificiales
Authors: Capuñay Sanchez Dulce Lucero , Incio Flores Fernando Alain , Estela Urbina Ronald Omar , Montenegro Camacho Luis , Delgado Soto Jorge Antonio , Cueva Valdivia Johnny
Published: December 2021

En el 2018, Perú participó de la Evaluación Internacional de Estudiantes (PISA), donde se evidenciaron resultados desalentadores en los estudiantes de educación básica regular. En tal sentido, se consideró la predicción de resultados académicos como un instrumento de mejora del rendimiento escolar. El objetivo de esta investigación fue predecir el promedio anual de estudiantes del segundo grado de la Institución Educativa N°16093 en la provincia de Jaén-Perú, mediante el diseño e implementación de una red neuronal artificial (RNA). Para la recolección de datos de las variables que influyen en el promedio anual del estudiante, se elaboró un cuestionario de respuestas dicotómicas. En la validación y confiabilidad, se utilizó el criterio de juicio de expertos y la prueba Kuder-Richarson respectivamente, en el cual el coeficiente de confiabilidad obtenido en una prueba piloto aplicado a 15 estudiantes fue de 0.8359. En el software científico Matlab con la ayuda de la aplicación nntool, se diseñó la RNA formada por tres capas ocultas y una capa de salida. La RNA durante el entrenamiento, la validación y la prueba, registró un coeficiente de correlación ponderado de 0.967190, y un error cuadrático medio de 0.05011. El modelo neuronal implementado bajo las condiciones dadas logró una efectividad del 88.670% y 98.522%.
Sınıf Öğretmenlerinin Öğrencilerin Matematik Ödevlerine Verdikleri Geri Bildirimlerin İncelenmesi
Authors: ÖZCAN Bülent Nuri
Published: December 2021

Bu çalışmanın amacı, sınıf öğretmenlerinin öğrencilerin matematik ödevlerine verdikleri yazılı geri bildirimleri incelemek ve kullandıkları geri bildirimlerin öğrenci düzeyine göre nasıl farklılaştığını ortaya koymaktır. Araştırma nitel bir yaklaşımla yürütülmüş ve olgu bilim deseni kullanılmıştır. Çalışmanın katılımcıları Manisa ili merkezinde farklı devlet okullarında görev yapan 24 sınıf öğretmeninden oluşmaktadır. Çalışmanın verileri doküman analizi tekniğiyle toplanmıştır. Öğretmenlerin öğrencilerin matematik ödevlerine verdikleri geri bildirimleri incelemek için aynı matematik ödevine üç farklı başarı düzeyindeki öğrencinin vermiş olduğu yanıtlar kullanılmıştır. Araştırmanın verilerini oluşturan dokümanlar öğretmenlerin yazılı geri bildirim vermiş oldukları öğrenci ödevleridir. Öğretmenlerin öğrencilerin matematik ödevlerine verdikleri yazılı geri bildirimlerin sınıflandırılması amacıyla nitel veri analizi tekniklerinden betimsel analiz kullanılmıştır. Öğretmenlerin öğrencilerin matematik ödevlerine verdikleri geri bildirimler incelendiğinde öğretmenlerin %60 oranında değerlendirici geribildirimi tercih ettikleri anlaşılmaktadır. Bunun yanında yaklaşık olarak yarısının «Pozitif değerlendirmeci geribildirim», üçte birinin ise «Gelişmeyle ilgili betimleyici geribildirim» verdiği görülmektedir.
Model Electrochemical Biosensor for the Detection of Methanol in Aqueous Solutions with Yeast Cells
Authors: Štukovnik Zala , Bren Urban , Rozman Bren
Published: December 2021

An electrochemical device that serves as a model biosensor and contains yeast Saccharomyces cerevisiae as the active biological element was developed. Different configurations of the electrochemical cells were assembled and tested. Stainless steel was used in the electrochemical cell composition process and the surface of this metal electrode was modified with a thin layer of WO3 if necessary. The yeast Saccharomyces cerevisiae was adhered to the working electrode. The resulting model biosensor was then used to monitor the response to a 10% CH3OH. For detection of biological activity, the electrochemical impedance spectroscopy (EIS) method was applied with a portable potentiostat/galvanostat, where the Bode and the Nyquist plots were interpreted. The stability of the device was beforehand determined by measuring the open circuit potential (OCP). The topography of the electrodes was inspected using the techniques of scanning electron microscopy and optical microscopy. The investigated model biosensor as a case study for the development of more complex biosensors that utilize living cells as the active layer.
Square-Wave Voltammetric Sensing of Lawsone (2- Hydroxy-1,4-Naphthoquinone) Based on the Enhancement Effect of Cationic Surfactant on Anodically Pretreated Boron-Doped Diamond Electrode
Authors: Pınar Pınar Talay , Yardım Yavuz , Şentürk Zühre
Published: December 2021

In this reported work, an anodically pretreated boron-doped diamond (BDD) electrode was used for the inexpensive, simple and quick detection of a natural dye, lawsone. Lawsone had a well-defined, irreversible and diffusion-controlled oxidation peak at approximately +0.19 V in phosphate buffer solution (PBS, 0.1 M, pH 2.5) using cyclic voltammetry (CV). The oxidation peak heights of lawsone were significantly increased in PBS using the cationic surfactant cetyltrimethylammonium bromide (CTAB). Under optimized experimental conditions, the calibration curve was linear over a concentration range of 0.1–5.0 μM with detection limit of 0.029 μM in 0.1 M PBS (pH 2.5) containing 0.1 mM CTAB by using square-wave voltammetry (SWV). To evaluate the practical applicability of the BDD electrode, it was used for the quantification of lawsone in commercial henna, a natural dye made from the leaves of the henna plant.
QSAR Studies and Structure Property/Activity Relationships Applied in Pyrazine Derivatives as Antiproliferative Agents Against the BGC823
Authors: Soualmia Fatima , Belaidi Salah , Tchouar Noureddine , Lanez Touhami , Boudergua Samia
Published: December 2021

Electronic structures, the effect of the substitution, structure physicochemical property/activity relationships and drug-likeness applied in pyrazine derivatives, have been studied at ab initio (HF, MP2) and B3LYP/DFT (density functional theory) levels. In the paper, the calculated values, i.e., NBO (natural bond orbitals) charges, bond lengths, dipole moments, electron affinities, heats of formation and quantitative structure-activity relationships (QSAR) properties are presented. For the QSAR studies, we used multiple linear regression (MLR) and artificial neural network (ANN) tatistical modeling. The results show a high correlation between experimental and predicted activity values, indicating the validation and the good quality of the derived QSAR models. In addition, statistical analysis reveals that the ANN technique with (9-4-1) architecture is more significant than the MLR model. The virtual screening based on the molecular similarity method and applicability domain of QSAR allowed the discovery of novel anti-proliferative activity candidates with improved activity.
ÜNİVERSİTE ÖĞRENCİLERİNİN KADINA YÖNELİK AİLE İÇİ ŞİDDET HAKKINDA BİLGİ VE TUTUMLARININ İNCELENMESİ
Authors: AVCI Sezer , GÜLER Selver , KÜTÜK Büşra , POLAT Fatma Nur , DEMİR Melisa
Published: December 2021

Bu araştırma üniversite öğrencilerinin kadına yönelik aile içi şiddet hakkındaki bilgi ve tutumlarının incelenmesi amacıyla yapıldı.
Tanımlayıcı tipteki bu çalışma Aralık 2019 ile Ocak 2020 tarihleri arasında Gaziantep’te bulunan bir vakıf üniversitesinde Sağlık Bilimleri Fakültesinde öğrenim gören 490 öğrenci ile gerçekleştirildi. Veriler; Veri Toplama Formu ve Aile İçi Şiddete Yönelik Tutum Ölçeği (AİŞYTÖ) uygulanarak yüz yüze görüşme tekniği ile toplandı.
Öğrencilerin yaş ortalamaları 21.12 ± 1.90, çoğunluğunun kadın olduğu (%73.3) ve %39.8’inin (n=195) şiddete maruz kaldığı saptandı. Öğrencilerin %60.6’sı aile içi şiddete en çok annelerin maruz kaldığını, %51.4’ü ülkemizde en çok görülen şiddet türünün fiziksel olduğunu ve %29’u aile içindeki şiddetin nedeninin kıskançlık olduğunu belirtti. Öğrencilerin %50.8’inin eğitim düzeyinin şiddeti etkilediğini ve %74.5’inin kadınların şiddete katlandıklarını ifade etti. Öğrencilerin eğitim gördükleri bölüm ile ülkemizde en fazla görülen şiddet türü, eğitim düzeyinin şiddeti etkilemesi, şiddetin kadın sağlığını etkilemesi, 6284 sayılı Kanun’u daha önce duyma ve şiddet eylemi ile karşılaşma durumları arasındaki farkın istatistiksel olarak anlamlı düzeyde olduğu saptandı (p˂0.05). Öğrencilerin AİŞYTÖ puan ortalamaları ile yaş, cinsiyet ve okudukları bölümler arasında istatistiksel olarak anlamlı bir fark olduğu tespit edildi (p˂0.05).
Öğrencilerin kadına yönelik aile içi şiddetle ilgili bilgi düzeylerinde bazı eksiklikler olduğu ve şiddete karşı tutumlarının ise olumsuz yönde olduğu söylenebilir.
OVERVIEW OF THE CLASSIFICATION OF SMALL ENTREPRENEURSHIP IN UKRAINE AND IN THE WORLD
Authors: Lyapin D.V.
Published: December 2021

Small and medium-sized enterprises are a much broader concept than just enterprises, and additionally include individual entrepreneurs and the self-employed. SMEs in a broad sense are precisely the sector that is seen in the EU and around the world as a key component of national security and a key element of employment. SMEs is a guarantee social stability and are an important element of innovative development and, accordingly, significantly affect the success of Ukraine's integration into the EU. The current state of SME development in Ukraine is generally proportional to the state of SME development in the EU, but the regulatory conditions for domestic small and medium-sized enterprises still do not fully meet the requirements and standards that should ensure economic growth. Therefore, in Ukraine the process of accumulation and understanding of the world experience of developed countries in the field of procedures for the formation of state policy on SMEs is becoming increasingly important. And the first stage of this process is the proper definition of the object of regulation - that is, the development of unambiguous terminology and criteries - which economic subjects belong to the group of micro, small and medium. The article considers the stages of development of a modern classification of SMEs in Ukraine, presents the positive and negative components of this process. The process of bringing the classification of SMEs in Ukraine in line with European practice is analyzed. Peculiarities of SME classification in the context of formation of state support programs are considered. The expediency of adopting the classifier of economic activities (KVED:2010) in the form of the law of Ukraine has been studied (at this time - as normative act of the State Statistics Service of Ukraine). The article shows that in most developed countries the classification of SMEs is not completely universal for different policies (fiscal, support policy, export, etc.) - and even within one country, different classifiers of SMEs can be used. Therefore, the emphasis is not on the formal compliance of SMEs with certain criteria, but on a meaningful understanding of the qualitative and fundamental differences between micro and small and medium-sized businesses. And the definition that public policy towards micro, small and medium-sized businesses has qualitatively different goals and should use different public policy instruments.
KOMPOZİT MALZEMELERİN CHARPY DARBE TESTİ SONRASI ULTRASONİK C-SCAN YÖNTEMİ İLE HASAR ANALİZİ
Authors: ÖZTAŞ Burak , KORKMAZ Yasemin , ÇELİK Halil İbrahim
Published: December 2021

Bu çalışmada, elyaf takviyeli kompozitlerde darbe sonrası absorblanan enerji ile oluşan iç hasar görüntüsü araştırılmıştır. 14 kat karbon ve 14 kat cam kumaştan oluşturulan kompozit yapılarda matris malzeme değişkeni sabit tutularak vakum infüzyon yöntemi ile numuneler aynı boyutlarda üretilmiştir. Üretilen bu numuneler Charpy darbe test cihazı ile darbeye maruz bırakılmıştır. Numunelere darbe öncesinde ve sonrasında doğrudan geçişli ultrasonik test (TTU) yöntemine göre muayene yapılmıştır. Elde edilen C-Tarama görüntülerinde görüntü işleme yöntemi kullanılarak, oluşan iç hasar alanı hesaplanmıştır. Sonuç olarak; Charpy test cihazından alınan enerji absorblama oranı ile hasar yayılımı ve hasarlı bölgenin kapladığı alan arasında doğru orantı tespit edilmiştir.
Simulation of groundwater contamination by leakage from waste-filled mine
Authors: Tafti Mojtaba Dehqani , Ardejani Faramarz Doulati , Marji Mohammad Fatehi , Shiri Yousef
Published: December 2021

Mining wastes are a great source of pollutants. Open-pit backfill materials can be found as waste rock and as tailings. The aim of the current study was the investigation of the contaminant transportation pathways by groundwater flow from these waste materials through heterogeneous porous media. Numerical Lattice Boltzmann Method (LBM) was used for examining the effects of different factors on pollutant transportation through groundwater beneath the waste materials. Grain size, vertical and horizontal fracturing, and hydraulic pressure gradient were factors considered here. The results showed that contaminant transportation by the groundwater flow from the waste materials through porous media depends on primary and secondary matrix porosity of the open-pit material, heterogeneity in permeability of aquifer rock, and hydraulic head of groundwater.
Autocorrelation and cross-correlation flow analysis along the confluence of the Kupa and Sava Rivers
Authors: Caren Marta , Pavlić Krešimir
Published: December 2021

In this paper, an autocorrelation and cross-correlation analysis of the flow of the Kupa and Sava rivers was performed. The analysis was performed at hydrological stations close to the confluence of these two rivers near the city of Sisak, based on data of mean daily flows and daily precipitation. The analysed time period is from 2008 to 2017, with the series being divided into two parts of five years each, from 2008 to 2012 and 2013 to 2017. Daily flow data were measured at the hydrological stations Farkašić on the Kupa River and Crnac on the Sava River, and data on precipitation at the main meteorological station and the automatic meteorological station Sisak. The maximum value of the cross-correlation function between the hydrological stations at the Kupa and Sava rivers is very high, but at a time lag of zero days. The value of the cross-correlation function remains high, up to 0.6 and up to a 4 day lag. The cross-correlation function between precipitation and hydrological data has a very low maximum value.
Experimental study of the effect of cooling/lubricating fluids on penetration rate in hard and soft rock drilling process
Authors: Khosravimanesh Shahrokh , Seifabad Masoud Cheraghi , Mikaeil Reza , Bagherpour Raheb
Published: December 2021

Rock drilling is the process of penetrating and crushing rocks, which is characterized by the low rate of penetration (ROP) and drilling rate because of the amount of cuttings that remain in the drilling environment and the thermal stresses generated at the bit-rock interface. Any improvement in ROP and drilling rate can be of great technical and economic value for drilling projects. ROP can be improved through the proper use of cooling-lubricating fluids during drilling. ROP is a key indicator of drilling performance and the ability to predict this rate can be very useful for mining projects. ROP prediction can also be used to estimate the total cost of a drilling operation. ROP depends on a variety of parameters, which, when available, can be used to estimate ROP. To reach a better understanding of the parameters affecting ROP and how it can be optimized, in this study, the results of 492 laboratory drilling tests were analyzed by linear and nonlinear multivariate regression in SPSS to build a number of models for ROP prediction. These tests were conducted on seven soft and hard rock samples while using six fluids as the cooling-lubricating agent. The tests were performed with a laboratory-scale drilling rig on cubic specimens at several different rotation speeds and thrust forces. The results showed that the drilling achieved significantly higher ROP in the presence of the cooling-lubricating agent. After reviewing the results, several models that were able to produce ROP predictions with the lowest average estimation error were picked as suitable choices for predicting ROP in the presence of cooling-lubricating fluids. The results of statistical tests of these models showed with over 90% confidence that they can produce highly accurate ROP estimates based on mechanical properties of the rock, physical characteristics of the cooling-lubricating fluid, and operating parameters of the drilling rig.
Legal Assistance in Criminal Cases in Digital Society
Authors: Antonovich E. K.
Published: December 2021

The digital environment developing in our society is becoming a kind of platform that not only conditions  the emergence of new types of crime, but also provides new opportunities in the investigation of crimes. Therefore,  the use of information technology should not only help in the prevention, detection of crimes and the identification  of persons who committed them, but also become a reliable guarantor of ensuring the rights of persons involved  in the orbit of criminal proceedings. The author discusses not only the problems of application of information  technologies in the production of certain investigative actions and the place of electronic evidence in the list  of types of evidence, but also the transfer of criminal proceedings to electronic format, examines individual  advantages and benefits that can be obtained from digitalization of criminal proceedings. The author carries out  a comparative analysis of Russian and foreign criminal procedure legislation in the context of the development of  digital technologies. The question of the possibility of using artificial intelligence in legal proceedings, including in  criminal proceedings, is considered. These issues acquire particular relevance when the investigation is connected  with the need to interrogate persons who are at the time of the investigation of a criminal case on the territory of a  foreign state. The same applies to the production of other investigative actions. In this case, cooperation is carried  out within the framework of providing legal assistance in criminal cases. A separate problem is the differences in  the criminal procedural legislation of the states cooperating in the provision of legal assistance in criminal cases.  Indeed, some foreign laws allow for the possibility of remote interrogation and remote search. All this determines  the search for new vectors for the development of international cooperation with more detailed regulation of the  production of remote investigative actions and in terms of securing the rights and obligations of its participants  not only for simpler and faster ways of accessing electronic evidence, but also for granting and observing their  rights and establishing and observing requirements for information technology, storage and transmission of data,  as well as the use of the information received.
Scientific and Academic Staff Attestation: On the Issue of a Senior Researcher Academic Title
Authors: Narutto S. V. , Zbaratskiy B. A.
Published: December 2021

The aim of the work is to analyze the legal status of a senior researcher academic title, some problems  of applying the current legislation in terms of equating the academic title of a senior researcher with the academic  title of an associate professor. The methodology of the work consists of the formal legal method, the method of  interpreting the norms of law, the comparative legal method and the historical and legal method. The paper shows  the identified problems of legal regulation of the position of a senior researcher, the title of which was awarded  by a scientific organization in accordance with the legislation in force at that time. Based on the study of the  genesis of domestic legal regulation of the mechanism for conferring the academic titles of senior researcher and  associate professor, analysis of the provisions of the current sources of law, which are continued in the materials  of law enforcement practice, amendments to the current legislation are proposed that equalize the rights of senior  researchers, the title of which was awarded by state bodies, and those who have been awarded an academic title  by organizations.
To the study of the influence of the cerebral cortex on pupil dilation
Authors: Mislavskiy Nikolay A.
Published: December 2021

In a small article under the title "de l'influence de l'corce grise sur la dilatation de la pupille", published in C. R. de la Socit de Biologie 1887 r. No. 13 I reported the results of my experiments on this question. The appearance of my work was caused by disagreement in the results obtained by Voshefontaine, Grnhagen and Bessau, on the one hand, and Kachanovsky, on the other, and was aimed not so much at studying the localization, already known then, of the cortical centers of pupil dilation, but rather to clarify the very method of action of the cortex.
DÖRT MEZHEP İMAMININ KUR’AN-SÜNNET MÜNASEBETİNE YAKLAŞIMLARI
Authors: GÜNGÖR Haydar
Published: December 2021

Müslümanların inanç, ibadet, ahlak gibi konularda sahip oldukları tutum ve davranışlarının en belirleyici unsuru şüphesiz Kur’an-ı Kerim’dir. Müslümanlar onun inzalinden itibaren onu anlama ve yorumlamaya çalışırken öncelikle Hz. Peygamber’in sözlerine ve uygulamalarına bakmışlardır. Onun vefatından sonra ise dönemin alimleri ellerinde bulunan Kur’an ve kendilerine ulaşan sünnet/hadis malzemesi eşliğinde İslam’ın güncel meselelerine çözüm yolları aramışlar ve metodlar geliştirmişlerdir. Onların uygulamış oldukları bu metodlarla vardıkları sonuçlar sadece yaşadıkları dönemde değil sonraki asırlarda hatta günümüzde bile kitlelerin davranışlarında belirleyici bir unsur olarak önemini korumaktadır. Müctehid imamların, meselelere bakış açıları ve Kur’an-Sünnet münasebetine yaklaşımları dikkat ve merak uyandıran bir husus olmaya da devam etmektedir. Onların sünnetin hucciyeti konusunda hem fikir oldukları bilinen bir husus iken sünnetin ne’liği, delil olarak kullanılacak olan rivayetin hususiyetleri veya çelişkili durumlarda izlenen metodlardaki yaklaşımları farklılaşabilmektedir. Bu farklı yaklaşımları, “Delil olma bakımından sünnetin Kur’an’a göre konumu”, “Hüküm koymada sünnetin Kur’an’a nazaran görevi”, “Kur’an-sünnet arasında nesh meselesi” ve “Sünnetin Kur’an’a arzı” gibi gibi başlıklar altında değerlendirmemiz mümkündür.
NUMERICAL MODELLING OF OSCILLATING FLOW FOR ENERGY HARVESTING
Authors:   Faculty of Mechanical Engineering, VSB - Technical University of Ostrava, Czech Republic, BLEJCHAR TOMAS , DRABKOVA SYLVA ,   Faculty of Mechanical Engineering, VSB - Technical University of Ostrava, Czech Republic, JANUS VACLAV ,   Faculty of Electrical Engineering and Informatics, VSB - Technical University of Ostrava, Czech Republic
Published: December 2021

The energy efficiency of systems, equipment, and sensors is nowadays intensively studied. The new generation of microelectronic sensors is very sophisticated and the energy consumption is in the microwatts range. The energy to power the microelectronic devices can be harvested from oscillating flow in small size channels and so replaceable batteries could be eliminated. Piezoelectric elements can convert energy from oscillation to electrical energy. This paper focuses on the simulation of periodic flow in the fluidic oscillator. CFD simulations were performed for several values of the flow rate. Experimental measurement was carried out under the same conditions as the CFD experiment. The main monitored and evaluated parameters were volume flow rate and pressure loss. Fluid oscillations were analysed based on CFD simulations and the theoretical maximum energy available for the deformation of piezoelectric elements and transformable into electrical energy was evaluated.
PROBABILISTIC ANALYSIS OF THE MAXIMAL LOAD OF INDUSTRIAL MACHINES
Authors:   Department of Machine Parts and Mechanisms,  VSB-Technical University of Ostrava, Ostrava, Czech Republic, FOLTA ZDENEK , SKALNY PAVEL ,   Department of Mathematics and Descriptive Geometry  VSB-Technical University of Ostrava, Ostrava, Czech Republic, MATEJKA PETR ,   Alliance Laundry CE s.r.o., Pribor, Czech Republic, TROCHTA MIROSLAV ,   Department of Machine Parts and Mechanisms,  VSB-Technical University of Ostrava, Ostrava, Czech Republic, PISTACEK DANIEL ,   Department of Machine Parts and Mechanisms,  VSB-Technical University of Ostrava, Ostrava, Czech Republic
Published: December 2021

This study describes the statistical analysis of peak forces of industrial washing machines. The data source comes from twelve different machines. The measurements are done using a force gauge installed in places for fastening screws. A new software based on LabView has been developed to gauge the acting forces. To determine extreme force values, various probability distributions are applied. Furthermore, a convex combination of lognormal distribution is used in more complicated cases. The parameters of the lognormal mixtures are determined using modified an Expectation-maximization algorithm. Finally, the achieved results are interpreted with regard to the engineering design and to the operating reliability.
EVALUATION OF THE RADIANT COOLING CEILING PANELS WITH A REVERSIBLE HEAT PUMP
Authors:   Technical University of Kosice, Faculty of Manufacturing, Technologies with a seat in Presov, Department of Process Technique, Presov, Slovak Republic, RIMAR MIROSLAV , FEDAK MARCEL ,   Technical University of Kosice, Faculty of Manufacturing, Technologies with a seat in Presov, Department of Process Technique, Presov, Slovak Republic, KULIKOV ANDRII ,   Technical University of Kosice, Faculty of Manufacturing, Technologies with a seat in Presov, Department of Process Technique, Presov, Slovak Republic, KULIKOVA OLHA ,   Technical University of Kosice, Faculty of Manufacturing, Technologies with a seat in Presov, Department of Process Technique, Presov, Slovak Republic
Published: December 2021

Thermal comfort is one of the basic prerequisites for appropriate operating of the building. Ensuring thermal comfort in the summer means creating suitable thermal conditions in the interior. The present article evaluates the operation of radiant ceiling cooling, which is a suitable alternative for conventional cooling systems. Experimental cooling systems using a reversible heat pump as a source of chilled water were analyzed. The presented results indicate the ability of the system to ensure the required interior temperature under suitable climatic conditions using appropriate time management and sufficient accumulation. The required temperature is 24.51 °C and the deviation does not exceed ± 0.5K.