bluuebunny/crossref_metadata_2025 huggingface dataset:
ENERGY ANALYSIS IN RESIDENTIAL BUILDING FOR INSULATION ROOF MATERIAL USING BUILDING INFORMATION MODELLING.
Authors:   Research scholar, Department of Civil Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur – 603203, Tamil Nadu, India, Sharma Prerna , Kumar V. R. Prasath ,   Assistant Professor, Department of Civil Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur – 603203, Tamil Nadu, India
Published: January 2022

Energy efficient is becoming a significant subject to investigate within the Architecture Engineering and Construction (AEC), as a result of the expanding heating and energy usage problem. Lack of interoperability has been identified as a hurdle to increased efficiency in the AEC. In order to fulfil the expanding demands around the world, the energy analysis must be incorporated into the building's planning section. Predicting a building's energy use and establishing an energy-saving life and style are both required. To conduct an energy study of a G+3 residential structure, the article uses Autodesk (BIM) capabilities. The goals of this project are to find BIM energy analysis into calculating a building's energy consumption, as well as to conclude the life cycle cost and energy cost over time, in same building. This study's primary focus is on roof materials and alternatives accomplished with the use of Autodesk Revit software and Green Building Studio, a cloud-based energy analysis application.
A CIRCULAR ECONOMY IN WASTE MANAGEMENT CARRYING OUT EXPERIMENTAL EVALUATION OF COMPRESSED STABILIZED EARTH BLOCK USING MUNICIPAL SOLID WASTE INCINERATOR FLY ASH
Authors:   School of Architecture and Interior Design, SRM Institute of Science and Technology, India., T L Abinaya , M Balasubramanian ,   Department of Civil Engineering, SRM Institute of Science and Technology, India.
Published: January 2022

The proper reuse and treatment Municipal solid waste incinerator fly ash is a is current a global concern. MSWI fly ashes possess a high concentration of SiO2, allowing them to be utilized as a raw material in the production of CSEB. This research looks into compressed stabilized earth blocks (CSEBs) that use municipal solid waste incinerator fly ash (MSWIFA) as an alternative to soil-sand mixture and sand. The experiment was divided into two phases: in the first, the effect of municipal solid waste incinerator fly ash on substituting soil-sand mix without affecting original performance, as well as resistance to sulfate attack, was emphasized. The effect of MSWIFA particle size and replacement ratio on replacing natural sand was then investigated. The analysis reveals that including MSWIFA into a soil-sand mixture considerably improved block performance, particularly under wetting–drying cycles and sulfate attack. MSWIFA particle size and replacement ratio have a significant influence on block strength and water absorption. Compressive and flexural strength are improved by the addition of 20% MSWIFA with a particle size of 0/4.75 mm. As a result, the research establishes a new investigation into the environmental recycling of MSWIFA in the context of the circular economy.
Geospatial Water Quality Analysis of Downstream of Tamiraparani River – Tamilnadu
Authors:   Department of Civil Engineering, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603203, Kanchipuram, TN, India, Reymond D. Justus , Sudalaimuthu Karuppasamy ,   Department of Civil Engineering, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603203, Kanchipuram, TN, India
Published: January 2022

A physicochemical analysis of River Tamiraparani was carried out to determine critical environmental issues using GIS mapping techniques. A large proportion of water is used for power generation and intense agricultural activities, mostly paddy is grown in the river banks. It is the only drinking water source for the entire Tirunelveli. The present study aimed at application of GIS techniques to understand the spatial distribution pattern of important water quality parameters with ArcMap 10.2.1. Water samples were collected and analysed following standard methods from 11 different locations covering the stretch from Authoor to Punnakayal during November 2020. A comprehensive physicochemical assessment of 10 indicator parameters namely conductivity, alkalinity, hardness, calcium, magnesium, chloride, sulphate, Total Dissolved Solids (TDS), sodium and potassium were carried out. The results showed that all the parameter apart from alkalinity exceeded the permissible limits specified by World Health Organization (WHO) and Bureau of Indian Standards (BIS) 2012. It was found that the first three locations (Authoor, Mukkani and Sertnthapoomangalam) met the specified drinking water standards because there is no such sea water intrusion happened. It is found that Kailasapuram that is the 4 sampling location onwards the concentration of TDS varies in the range of 19,600-27,650 mg/l, conductivity is in the range of 40,000-48,000 μs/cm, hardness is in the range of 1,500-4,200 mg/l, chloride is in the range of 12,000-17,000 mg/l, calcium varies in the range of 300-435 mg/l, magnesium is in the range of 800-1100 mg/l, sulphate is in the range of 1300-1600 mg/l, sodium is in the range of 6000-9,000 mg/l and potassium varies in the range of 450-600 mg/l. This could be due to pollution loads entering from sewage discharge, washing of clothes, bathing and sea water intrusion. The study is mandatory for the decision makers and public for reduce the contamination levels in the study area, since it is a major source of water for domestic and agricultural activities of surrounding.
Levantamento de Macrofungos do Reino Fungi Ocorrentes no Parque Nacional dos Campos Gerais, Paraná, Brasil
Authors: Pedroso Natalie Alana , Ferreira Lucila Kawana Nunes , Oliveira Juliano Rodrigues , Antiqueira Lia Maris Orth Ritter
Published: January 2022

O Parque Nacional dos Campos Gerais foi criado com o propósito de proteger a biodiversidade existente na região dos Campos Gerais do Paraná. A unidade de conservação federal possui mais de 21 mil hectares e abrange parte dos municípios de Ponta Grossa, Castro e Carambeí. Este estudo teve como objetivo levantar dados acerca das espécies do Reino Fungi que ocorrem na região do Parque, a fim de fornecer subsídios para elaboração do plano de manejo da unidade de conservação e contribuir com o conhecimento da biodiversidade da região, ainda pouco elucidada. Além de coleta de dados em campo foi realizada pesquisa em literatura especializada e no banco de dados speciesLink. Os resultados apontam que na região dos Campos Gerais há ocorrência de 55 espécies de fungos. Há pouca literatura disponível e poucos registros em herbários. Esses resultados revelam a necessidade urgente de estudos mais aprofundados e registro de ocorrências.
Semeadura Direta para Restaurar Savanas Neotropicais: uma Alternativa para Adequação Ambiental no Cerrado
Authors: Wiederhecker Gabriel Ana , Scaramello do Nascimento Silva Eric , De Freitas Sartori Miguel , Belloni Schmidt Isabel , Bonesso Sampaio Alexandre
Published: January 2022

Restaurações de savanas neotropicais são muitas vezes realizadas de forma inadequada,desconsiderando características ecológicas dessas vegetações. Ameaçadas pela conversão paraatividades agrícolas e introdução de espécies invasoras, a conservação desses ambientes dependeda restauração ecológica. Em locais com presença de espécies exóticas invasoras, o monitoramentoe o manejo após a restauração são de extrema importância, sendo frequentemente negligenciados.O presente estudo foi realizado em sete áreas onde houve restauração por semeadura direta de espéciesarbóreas, arbustivas e herbáceas nativas de formações savânicas do Cerrado. Em cada uma dasáreas, indicadores de: cobertura vegetal, densidade e riqueza de espécies nativas regenerantes foramamostrados pela disposição de parcelas de 100m2. Os resultados obtidos foram avaliados de acordocom os valores de referência estabelecidos pela norma de restauração do DF. O histórico das áreas e opreparo do solo pareceram interferir de maneira significativa nos caminhos da restauração, afetandoa composição da comunidade vegetal e os valores obtidos para os indicadores amostrados em cadaárea. Os valores de referência definidos pela norma do DF não foram alcançados integralmente pornenhuma das áreas. Ainda assim, os resultados indicam que é possível atingir os requerimentos legaispara cobertura de plantas nativas, densidade e riqueza de regenerantes por meio da restauraçãoecológica. Para isso, o revolvimento do solo pode ser utilizado para o controle das invasoras e asemeadura direta de gramíneas, arbustos e árvores para a reitrodução da biodiversidade nativa.Para o sucesso ser alcançado, é necessária a melhoria no controle das espécies invasoras antes dasemeadura, bem como omonitoramento e a manutenção.
Influência da Disponibilidade de Alimentos de Origem Antrópica sobre o Comportamento Natural de Nasua nasua (Linnaeus, 1766) no Parque Nacional da Serra dos Órgãos, Teresópolis, Rio de Janeiro
Authors: De Faria Bacellar Ana Elisa , Cronemberger de Faria Cecília , de Souza Soares Lorena , de Sousa Stein David , Alves de Oliveira Dumard Siqueira Hayssa , Deiss de Faria Isabela , Ramos Hentz Pinto Úlyma
Published: January 2022

A sustentabilidade da atividade turística em unidades de conservação (UCs) depende de uma gestão que busque um balanço positivo entre os impactos negativos e a proteção da biodiversidade. A aproximação de visitantes a animais silvestres e oferta de alimentos é um dos impactos potenciais da visitação pública em UCs a ser monitorado e minimizado. Nesse contexto, o objetivo do trabalho foi quantificar a frequência relativa em que quatis (Nasua nasua) acessam lixeiras no Parque Nacional da Serra dos Órgãos e testar a eficiência de dois modelos de trava para dificultar esse acesso. Para descrever o comportamento dos quatis, foram realizadas 358 horas de observação, em 2013 e 2017/2018, usando o método de “amostragem de todas as ocorrências”. Para testar a eficiência das travas, foram monitoradas por armadilha fotográfica três lixeiras iscadas: uma com trava, modelo “iguaçu”, outra com modelo “tijuca” e uma lixeira controle, sem trava. Os comportamentos mais frequentes foram forrageamento natural (31%), deslocamento (14%), vocalização (10%) e alimentar-se de lixo (10%), sugerindo que os quatis mantêm seu comportamento natural, consumindo alimentos de origem antrópica de forma complementar. Ambas as travas foram eficientes, mas houve maior insistência dos quatis na lixeira “iguaçu”, possivelmente devido à atratividade do odor como consequência da vedação imperfeita. Em um cenário de visitação crescente, recomenda-se instalar a trava “tijuca” nas lixeiras do parque, assim como placas, orientando visitantes a não alimentarem e manterem distância segura dos quatis. Espera-se assim, evitar acidentes e enfraquecer o hábito oportunista dos quatis, diminuindo a interferência da presença humana em seu comportamento.
Az Európai Unió egyik tagállamából a másikba történő hulladékszállítás kérdései az Európai Bíróság döntése alapján
Authors: Ferge Zsigmond
Published: January 2022

A közbeszerzésről szóló irányelv értelmezésében, a hulladékkezelési szolgáltatásra irányuló közbeszerzési eljárás keretében a valamely tagállamból egy másik államba hulladékot szállítani kívánó gazdasági szereplő azon kötelezettsége, hogy a hulladékszállításról szóló rendelettel összhangban az e szállítással érintett államok illetékes hatóságainak engedélyével rendelkezzen, az e szerződés teljesítésével kapcsolatos feltételnek minősül. Az irányelv rendelkezéseivel ellentétes, ha az ajánlattevő ajánlatát pusztán azzal az indokkal utasítják el, hogy az az ajánlata benyújtásának időpontjában nem bizonyítja, hogy az ajánlattevő teljesíti az érintett szerződés teljesítésére vonatkozó feltételt.
Viestinnän mittaaminen ja strateginen viestintä
Authors: Juholin Elisa , Rydenfelt Henrik
Published: January 2022

Communication measurement and evaluation

– Goal-orientation, agility or fumbling in the dark?

The interest of organizations in assessing stakeholder relationships and expectations, intangible assets, and social impact has grown strongly in the 21st century. This change is linked to new views on the strategic role of communication and strategic management. We examine the development and current state of the measurement and evaluation (M&E) of communication through research literature and empirical material. We suggest that the models of M&E used in organizations can also tell us about  their views of strategic communication and the connection to organizational strategy. Present practices of M&E are dominated by logical models as well as summative evaluation, which are connected with a functionalist view of strategic communication. The data also provide indications of agile evaluation. Many organizations also engage in practices that we call blind measurement: metrics are not directly linked to the goals of communication.
СУПРОВІД РОЗВИТКУ ОБДАРОВАНОЇ ОСОБИСТОСТІ В ОСВІТНЬОМУ ПРОЦЕСІ: СУЧАСНИЙ СУСПІЛЬНИЙ ДИСКУРС
Authors: Melnyk Maryna
Published: January 2022

Здійснено аналіз результатів опитування щодо супроводу розвитку обдарованої особистості в освітньому процесі, що його проводив Інститут обдарованої дитини Національної академії педагогічних наук України. Протягом 3-30 вересня 2021 р. опитано понад 52 тис. респондентів — представників педагогічної спільноти, здобувачів освіти та батьків. Розглянуто обізнаність педагогічної спільноти та батьків щодо діагностики та супроводу розвитку обдарованості в освітньому процесі. Виявлено готовність працівників закладів освіти ідентифікувати обдарованих здобувачів освіти та працювати з ними. Встановлено, що 80 % педагогічних працівників закладів загальної середньої освіти, 60 % учнів та половина батьків, які були учасниками опитування, переконані в необхідності діагностики та супроводу розвитку обдарованості в освітньому процесі. На думку опитаних працівників закладів освіти, труднощі ідентифікації та супроводу розвитку обдарованих учнів найчастіше пов’язані з відсутністю методичного забезпечення та браком часу на організацію і проведення такої роботи. З’ясовано, що для педагогічних працівників у підтримці та розвитку обдарованості учнів існує кілька важливих мотиваторів — підтримка батьків, підтримка від МОН України, інститутів післядипломної педагогічної освіти, адміністрації закладу освіти, фінансова винагорода. Водночас найважливішими та найбільш нагальними, на думку опитаних, є системні зміни: розроблення та впровадження державної програми (концепції) підтримки й розвитку дитячої обдарованості. Уточнено потреби учасників освітнього процесу в організації діагностики та супроводу розвитку обдарованої особистості.
Developmental differences in processing the valence and magnitude of incentive cues: Mid-adolescents are more sensitive to potential gains than early- or late-adolescents
Authors: Ferdinand Nicola K. , Kapsali Efsevia , Woirgardt Marc , Kray Jutta
Published: January 2022

Recent research has focused on the interaction between motivation and cognitive control and shown that both are important for goal-directed behavior. There also is evidence for developmental differences in the sensitivity and behavioral effectiveness of incentives, showing that mid-adolescents might be especially susceptible to rewards. Further pursuing this line of research, the present study examined developmental differences in incentive processing and whether these potential differences also would correspond to changes in cognitive control. We compared the processing of high and low potential gains and losses in early-, mid-, and late adolescents by means of event-related potentials (ERPs) and examined whether these incentives also led to specific performance differences in task-switching. We expected that potential gains compared to potential losses and high compared to low incentives would lead to more preparatory updating as reflected in the P3b and consequently to better task performance and smaller global and local switch costs as indicators of cognitive control in all age groups. Furthermore, we expected that mid-adolescents should be especially sensitive to high gains and thus show the most pronounced enhancements in task performance and global and local switch costs in trials with high gains, respectively. Our results corroborate the idea of a special sensitivity to high rewards during mid-adolescence. The analysis of ERPs showed age-related differences in the processing of incentive cues that also varied with cognitive control demands. However, the different incentives did not impact age-related differences in indices of cognitive control, but had a general effect on response speed.
PESQUISAS EM GRUPOS COLABORATIVOS, EDUCAÇÃO MATEMÁTICA E A FORMAÇÃO INICIAL DO PROFESSOR
Authors: Cremoneze Marcielli de Lemos , Ciríaco Klinger Teodoro
Published: January 2022

No presente artigo, temos como objetivo caracterizar o que dizem algumas pesquisas sobre experiências de futuros professores em grupos colaborativos de Educação Matemática. O referencial teórico-metodológico discute o conceito de colaboração e grupos colaborativos, sendo este último o descritor a que recorremos junto às bases de dados da BDTD e CAPES no período de 2008 a 2018. A abordagem metodológica adotada, para o mapeamento do tipo "estado da arte" (Ferreira, 2002), é de natureza descritivo-analítica em que as teses e dissertações localizadas foram descritas a partir de seus objetivos, contextos, metodologias, principais resultados e conclusões, respeitando fidedignamente as fontes primárias. Dentre 83 trabalhos, quatro se enquadraram no critério de seleção de análise e, com a aproximação dos resultados, verificamos que ações mediadas pela colaboração são potencializadoras ao desenvolvimento profissional na formação inicial de professores a partir de atividades que gestam práticas pré-profissionais do aprender a ensinar. Como conclusão, foi possível perceber que o foco principal da maioria das pesquisas centra-se no campo da formação continuada, o que se faz pertinente. No entanto, são espaços que em geral não estão ligados à formação inicial, não possibilitam acesso aos futuros professores, dado que aponta para a necessidade de fortalecer iniciativas de estudos/investigações que integrem professores em exercício e professores em formação inicial, cuja a colaboração seja base para a negociação de significados ao compartilharem seus saberes e práticas.
OPORTUNIDADES DE APRENDIZAGEM VIVENCIADAS POR PROFESSORES DE MATEMÁTICA: EXPERIÊNCIAS ADVINDAS DE UM PROCESSO FORMATIVO ANCORADO NA PRÁTICA DOCENTE
Authors: Aguiar Marcia , Ribeiro Alessandro Jacques
Published: January 2022

Essa pesquisa adota o entendimento de que o desenvolvimento profissional e a aprendizagem do professor possibilitam uma melhora na sua prática docente, assim nesse artigo, apresentamos resultados de pesquisa que busca identificar e compreender como oportunidades de aprendizagem profissional emergem quando professores discutem e analisam, coletivamente, aulas envolvendo padrões e regularidades na escola básica. O estudo foi desenvolvido numa perspectiva qualitativa-interpretativa e os dados analisados são constituídos por protocolos de resolução de tarefas formativas, áudios e vídeos colhidos ao longo de um processo de formação continuada. Os resultados nos apontam que as tarefas de aprendizagem profissional favoreceram que os professores discutissem o conhecimento dos estudantes e do ensino acerca de padrões e regularidades e, mostram ainda, que os professores participantes mobilizaram e ampliaram seus conhecimentos sobre a interpretação de diferentes formas de se generalizar um padrão matemático, assim como ampliaram seus próprios conhecimentos matemáticos acerca deste importante tema a ser discutido na escola básica.
INTRODUÇÃO À HISTÓRIA SOCIAL DA EDUCAÇÃO MATEMÁTICA - HISOEM
Authors: González Fredy
Published: January 2022

A questão norteadora deste ensaio é: como aconteceu o processo que propiciou a emergência e o desenvolvimento da Educação Matemática, até se converter num campo disciplinar e de pesquisa, tanto prática quanto teórica? Será oferecida uma resposta na perspectiva da História Social da Educação Matemática – HISOEM que leva em consideração as práticas socioculturais associadas com processos de ensino, aprendizagem, estudo, avaliação, criação das Matemáticas - tanto acadêmicas quanto escolares e cotidianas - que são protagonizadas por diversos autores/atores - tanto reconhecidos como autores/atores de referência quanto anônimos: professores de aula, vendedores de rua, artistas de diversas áreas, artesãos, bonequeiros, costureiras, etc. O aspecto central desta perspectiva é examinar o desenvolvimento no tempo (História) das interações entre os protagonistas (atores e autores de referência) das diversas situações e práticas sociais (Sociologia) nos múltiplas contextos (cenários de difusão) onde são desenvolvidas práticas de ensino, aprendizagem, estudo e avaliação das diversas variedades da Matemática: acadêmica, escolar e cotidiana (a que é utilizada pelas pessoas nas suas variadas atividades, tanto profissionais quanto não profissionais, como às dos marceneiros, pedreiros, e muitos outros operários ou técnicos; como também assim os artesãos, pescadores, etc.). As noções teóricas assumidas são: as ideias de campo científico, evolucionismo conceitual, prática sociocultural, enfoque histórico cultural e situação social. Metodologicamente, trata se de uma pesquisa teórica documental de natureza reflexivo-interpretativa. Se conclui que a constituição como disciplina da Educação Matemática é um processo epistemológico, sociológico e histórico essas três perspectivas são o fundamento da concepção da HISOEM subscrita nesta exposição
VISUALIZAÇÃO DE FORMAS GEOMÉTRICAS: ENVOLVIMENTO DE PROFESSORES PEDAGOGOS
Authors: Leivas José Carlos Pinto
Published: January 2022

Neste trabalho é apresentada uma pesquisa de cunho qualitativo-descritivo envolvendo nove participantes de uma aula em curso de ação continuada para professores pedagogos em nível de mestrado. O objetivo da pesquisa foi propor atividades envolvendo artefatos manuais a fim de investigar como os envolvidos visualizavam formas geométricas planas nesses artefatos bem como espaciais em suas representações figurais. Os dados foram coletados por meio de três atividades em um Google Forms, no qual eram apresentadas cinco imagens do mundo real a fim de ser associada uma única forma geométrica que melhor se aproximasse de cada uma delas. A primeira remetia ao polígono quadrado; a segundo à região circular e a terceira a uma forma que não fosse prisma. Os resultados mostraram que os indivíduos não fazem distinção visual entre polígono e região poligonal; círculo e circunferência. Por fim, alguns confundem a imagem de um cubo como não sendo um prisma. Conclui-se ser necessário desenvolver habilidades visuais de modo a proporcionar a aquisição de desenvolvimento de pensamento geométrico, de modo a analisar propriedades e relações entre tais objetos.
PRÁTICAS DE FORMAÇÃO PARA PROFESSORES DOS ANOS INICIAIS VOLTADAS AO DESENVOLVIMENTO DO PENSAMENTO ALGÉBRICO
Authors: Santos Fernanda Cristina Ferreira , Moretti Vanessa Dias
Published: January 2022

Este artigo tem por objetivo apresentar práticas de formação continuada desenvolvidas com professores polivalentes que atuam nos anos iniciais do Ensino Fundamental em uma escola de rede pública. Tais práticas estão fundamentadas na perspectiva Histórico-Cultural e têm em vista o desenvolvimento do pensamento algébrico, entendido como pensamento teórico no campo de conhecimento algébrico. O processo de formação se deu no contexto de uma ação de extensão vinculada a uma pesquisa de mestrado e foi organizado tendo como base teórico-metodológica a Atividade Orientadora de Ensino, o que implicou considerar nos procedimentos a coletividade e os processos de análise e síntese na solução de situações desencadeadoras que problematizaram alguns nexos conceituais da álgebra. A análise dos dados apresenta indícios de desenvolvimento do pensamento algébrico dos professores revelando uma aproximação das significações sociais do objeto de conhecimento em questão e um maior nível de conscientização em relação à sua práxis pedagógica como desencadeadora da aprendizagem do aluno. Conclui-se que as práticas formativas desenvolvidas, ao considerarem os processos coletivos de solução de situações desencadeadoras envolvendo alguns nexos conceituais da álgebra favoreceram o desenvolvimento do pensamento algébrico dos professores por meio da abstração, generalização e formação de conceitos algébricos, bem como permitiram a ressignificação e reorganização do ensino da matemática e, particularmente, da álgebra para os anos iniciais do Ensino Fundamental.
Theranostic potential of self-luminescent branched polyethyleneimine-coated superparamagnetic iron oxide nanoparticles
Authors: Khodadust Rouhollah , Unal Ozlem , Yagci Acar Havva
Published: January 2022

Polyethylenimine (PEI), which is frequently used for polyplex formation and effective gene transfection, is rarely recognized as a luminescent polymer. Therefore, it is usually tagged with an organic fluorophore to be optically tracked. Recently, we developed branched PEI (bPEI) superparamagnetic iron oxide nanoparticles (SPION@bPEI) with blue luminescence 1200 times stronger than that of bPEI without a traditional fluorophore, due to partial PEI oxidation during the synthesis. Here, we demonstrate in vitro dye-free optical imaging and successful gene transfection with luminescent SPION@bPEI, which was further modified for receptor-mediated delivery of the cargo selectively to cancer cell lines overexpressing the epidermal growth factor receptor (EGFR). Pro-apoptotic polyinosinic–polycytidylic acid sodium (PIC) was delivered to HeLa cells with SPION@bPEI and caused a dramatic reduction in the cell viability at otherwise non-toxic nanoparticle concentrations, proving that bPEI coating is still an effective component for the delivery of an anionic cargo. Besides, a strong intracellular optical signal supports the optically traceable nature of these nanoparticles. SPION@bPEI nanoparticles were further conjugated with Erbitux (Erb), which is an anti-EGFR antibody for targeting EGFR-overexpressing cancer cell lines. SPION@bPEI-Erb was used for the delivery of a GFP plasmid wherein the transfection was confirmed by the luminescence of the expressed gene within the transfected cells. Poor GFP expression in MCF7, a slightly better expression in HeLa, and a significant enhancement in the transfection of HCT116 cells proved a selective uptake and hence the targeting ability of Erb-tagged nanoparticles. Altogether, this study proves luminescent, cationic, and small SPION@bPEI nanoparticles as strong candidates for imaging and gene therapy.
Pengaruh Personalitas, Motivasi Kerja Dan Lingkungan Kerja Terhadap Kinerja Guru SD Kecamatan Bukit Raya Kota Pekanbaru
Authors: Misrina Misrina , Suroyo Suroyo , Tatminingsih Sri
Published: January 2022

This study aims to determine the components that affect teacher performance in elementary schools in Bukit Raya District, Pekanbaru City. The research variables are personality, work motivation, work environment, and teacher performance. The research uses a quantitative approach. The population was elementary school teachers in Bukit Raya District, Pekanbaru City with a sample of 176 teachers selected by proportional sampling. Data were collected by survey technique using a questionnaire. Data were analyzed using Multiple Regression. The results showed that the variables of personality, work motivation, and work environment had a significant effect on the performance of elementary school teachers in Bukit Raya District, Pekanbaru City. The recommendation that can be submitted is that self-development activities to improve teacher personality, teacher work motivation, and work environment for teachers in elementary schools in Bukit Raya District, Pekanbaru City need to be carried out optimally
Penggunaan Model Pembelajaran Kooperatif Tipe Jigsaw Terhadap Kemampuan Pemahaman Konsep Belajar Siswa
Authors: Harefa Darmawan , Sarumaha Murnihati , Fau Amaano , Telaumbanua Tatema , Hulu Fatolosa , Telambanua Kaminudin , Sari Lase Indah Permata , Ndruru Mastawati , Marsa Ndraha Lies Dian
Published: January 2022

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan model pembelajaran kooperatif tipe Jigsaw terhadap kemampuan pemahaman konsep belajar siswa. Penelitian ini menggunakan pendekatan kuantitatif dengan metode quasi eksperimen. Populasi penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 2 Amandraya yang berjumlah 56 orang. Sampel penelitian dipilih dengan menggunakan teknik total sampling. Sampel penelitian adalah kelas VIII-A sebagai kelas eksperimen dengan jumlah siswa 30 orang dan kelas VIII-B sebagai kelas kontrol dengan jumlah siswa 26 orang. Instrumen yang digunakan adalah tes kemampuan pemahaman konsep sesuai dengan indikator kemampuan pemahaman konsep belajar siswa. Data dianalisa dengan menggunakan uji varians untuk menguji homogenitas dan uji t-test untuk menguji hipotesis. Temuan penelitian menunjukkan bahwa model pembelajaran kooperatif tipe jigsaw memengaruhi kemampuan pemahaman konsep belajar siswa dan meningkatkan pemahaman siswa terhadap masalah beljar siswa serta mampu menyelesaikan masalah. Berdasarkan hasil penelitian tersebut, dapat disimpulkan bahwa  model pembelajaran kooperatif tipe jigsaw mempengaruhi kemampuan pemahaman konsep belajar siswa.
Upaya Peningkatan Motivasi Dan Prestasi Belajar Kimia Melalui Implementasi Model Pembelajaran Jigsaw Pada Pembelajaran Laju Reaksi Kelas Xi IPA 1 SMA Negeri 1 Paguat Tahun Pelajaran 2019/2020
Authors: Tuna Rahmawaty
Published: January 2022

Penelitian ini merupakan penelitian tindakan kelas yang bertujuan untuk menemukan upaya meningkatkan aktivitas peserta didik melalui pembelajaran kooperatif tipe Jigsaw, untuk meningkatkan prestasi belajar kimia dan respon peserta didik. Peserta didik merupakan subjek pendidikan yang secara aktif mampu membentuk prestasi belajar kimia dalam dirinya. Agar mampu memperoleh prestasi kimia yang baik maka dibutuhkan sikap atau motivasi sebagai bekal ajar belajar dengan baik. Penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan dalam tigas siklus. Subyek penelitian ini adalah peserta didik kelas XI IPA 1 SMA Negeri 1 Paguat. Fokus yang diteliti dalam penelitian ini adalah motivasi dan prestasi belajar kimia peserta didik. Dari hasil penelitian menunjukkan bahwa motivasi dan prestasi belajar kelas XI IPA 1 SMA Negeri 1 Paguat menjadi meningkat yang ditandai dengan peningkatan rerata nilai dari siklus 1 sampai siklus III. Aktivitas peserta didik juga terjadi peningkatan. Oleh sebab itu implementasi pembelajaran model Jigsaw mampu memberikan respon yang baik dan positif bagi peserta didik.
Peningkatan Hasil Belajar Matematika Siswa SMA Negeri 1 Marisa Melalui Model Pembelajaran Kooperatif Tipe Team Games Tournament (TGT)
Authors: Tora Selvi
Published: January 2022

Penelitian ini bertujuan mengumpulkan dan menganalisis data tentang upaya meningkatkan hasil belajar matematika melalui model pembelajaran kooperatif tipe Team games tournament pada kelas XII IPA SMA Negeri 1 Marisa. Penelitian ini menggunakan penelitian tindakan kelas sebanyak dua siklus. Setiap siklus terdiri dari empat tahap, yaitu: rancangan, kegiatan dan pengamatan, refleksi, dan revisi. Subjek penelitian ini adalah siswa kelas XII IPA SMA Negeri 1 Marisa Tahun Pelajaran 2018/2019. Dari hasil analisis didapatkan bahwa hasil belajar siswa mengalami peningkatan dari pra siklus, siklus I sampai siklus II, yaitu pra siklus, siklus I (68,42%), siklus II. Simpulan dari penelitian ini adalah model pembelajaran kooperatif tipe Team games tournament dapat berpengaruh positif terhadap hasil belajar peserta didik Kelas XII IPA SMA Negeri 1 Marisa, serta model pembelajaran ini dapat digunakan sebagai salah satu alternatif pembelajaran matematika.
Upaya Meningkatkan Hasil Belajar Pendidikan Agama Islam Pada Siswa Kelas XI SMK Negeri 1 Popayato Melalui Model Pembelajaran Kooperatif Tipe Sharing Dan Media Audio Visual
Authors: Pasuka Suhrin
Published: January 2022

Hasil belajar siswa yang belum mencapai Ketuntasan Kelulusan dapat disebabkan cara atau metode yang diterapkan dalam pembelajaran tidak tepat. Sehingga di dalam pemahaman suatu materi pembelajran siswa mendapatkan kesulitan. Proses pembelajaran yang masih menggunakna pendekatan yang menimbulkan kejenuhan, kebosanan serta menurunkan minat dan motivasi belajar siswa. Yang akhirnya akan berdampak pada hasil belajar siswa. Penelitian tindakan kelas ini bertujuan untuk menciptakan suasana belajar yang menyenangkan, tidak membosankan serta meningkatkan mutu pembelajran. Sehingga dapat meningkatkan aktivitas siswa dalam pembelajaran, mengajak siswa untuk turut berpartisipasi serta dapat meningkat hasil belajar siswa pada pelajaran Agama Islam terutama pada materi Iman pada Hari Akhir. Penelitian ini menggunakan model pembelajaran kooperatif yatitu Sharing dan Media Audio Visual. Dari hasil penelitian diperoleh hasil belajar siswa yang tercapai dan diperoleh siswa dari evaluasi tes tertulis pada akhir pembelajaran mengalami peningkatan,untuk siklus I 25 siswa yang telah mencapai ketuntasan belajar dan masih terdapat 10 siswa yang belum mencapai ketuntasan belajar dengan daya serap siswa mencapai 74,4 %. Pada siklus II terjadi peningkatan menjadi 35 orang yang mencapai ketuntasan dalam belajar dengan daya serap siswa mencapai 83,9 %.
Praktik Pelatihan Foto Produk Untuk Kinerja Pemasaran Produk Pada Usaha Mahasiswa Fakultas Ilmu Sosial Dan Ilmu Politik Universitas Diponegoro
Authors: Pinem Robetmi Jumpakita , Purbawati Dinalestari
Published: January 2022

Pengabdian masyarakat, memberikan pemahaman kepada mahasiswa untuk pentingnya menyiapkan foto produk yang layak. Social media dan market place sebagai sarana untuk media pemasaran akan sangat membuthkan materi untuk menarik minat dari pembeli produk atau jasa yang ditawarkan kepada calon konsumen. Setelah melakukan branding, Hidden Labs melakukan maintaining sosial media dari kliennya. Hal ini dilakukan agar bisa menarik engagement dari banyak orang sehingga usaha tersebut bisa memiliki jangkauan yang lebih luas. Kesulitannya adalah lebih kepada sifat klien yang berbeda-beda mengenai knowledge mereka tentang branding. Ada beberapa klien yang memiliki knowledge branding yang kurang akan lebih gampang dalam mengusung konsep, tetapi kelemahannya adalah brainstorming yang kurang. Kalau klien yang memiliki knowledge mengenai branding akan semakin banyak brainstorming dan terkadang menjadi lebih risky karena mereka sudah memiliki latar belakang dan pengetahuan mengenai branding.

 
Pembentukan Destinasi Agrowisata Rempah Di Sekitar Air Terjun Tumburano Kabupaten Konawe Kepulauan
Authors: Hasniah Hasniah , Sifatu Wa Ode , Hartini Hartini , Sofyani Wa Ode Winesty , Danil Muh.
Published: January 2022

Air Terjun Tumburano setinggi 98,8 meter hingga saat ini belum dikelola dengan baik. Tujuan untuk mencerahkan masyarakat tentang pentingnya penanaman dan penataan pohon rempah secara artistik di sekitar Air Terjun Tumburano. Metode penyuluhan terhadap 20 orang warga desa (kepala desa dan perangkatnya, anggota kelompok tani, dan ibu-ibu PKK). Hasilnya menunjukkan adanya transfer pengetahuan baru bagi peserta mengenai pohon rempah sebagai tanaman leluhur di kebun pribadi, berubah menjadi tanaman yang menarik di lahan pemerintah sebagai milik semua warga di sekitarnya, sehingga harus dikelola dengan baik agar lestari dan berkelanjutan. Pemerintah segera membuat kerjasama dengan perguruan tinggi dan pengusaha dalam pengelolaan destinasi wisata ini serta segera menyiapkan insfrastruktur jalan, penyediaan bibit tanaman rempah dan ruang terbuka hijau (RTH) di sekitarnya. Penyuluhan ini dapat ditindaklanjuti dengan jenis pengabdian lain seperti: pelatihan mengolah bahan-bahan lokal yang bisa dinikamti di Air Terjun Tumburano dan menjadi ole-ole, serta pembuatan souvenir khas Kabupaten Konawe Kepulauan.
SWOT Analysis in a Maritime Higher Education Institution: Strategic Planning Basis for Institutional Efficiency
Authors: Paraggua Victoria Q. , Mobo Froilan D. , Acuavera Ronalyn C. , Villavicencio Leah R. , Pasa Geraldine C. , Atejera Sheena Lee R.
Published: January 2022

Higher education institutions conduct strategic planning to attain their goals and enhance their operations. Aiming for improved institutional efficiency, the Philippine Merchant Marine Academy (PMMA) conducted SWOT analysis to help establish an effective strategic plan. This quantitative-descriptive study, contributes to the understanding of the Strengths, Weaknesses, Opportunities and Threats (SWOT) affecting the operations of PMMA as a maritime higher education institution. Using a Likert Scale survey questionnaire, the data gathered from 767 respondents revealed that deliberate changes must be made to facilitate institutional growth. The PMMA’s strengths showed that the academy is meeting its objectives and its weaknesses are primarily process driven issues that need attention. The academy’s opportunities are external essentials that provide better chances and options for midshipmen to progress through their academic and training experiences. Most of the respondents agreed that the Academy has threats related to the ongoing COVID-19 pandemic and other future health crisis. To face many challenges brought by the globalization and the pandemic, PMMA has to develop a strategic approach based on the SWOT Analysis leading to improved efficiency. This initiative is meant to institutionalize SWOT analysis at the PMMA and encourage the practice of SWOT analysis in other higher education sectors.
Regulation of Digital Ecosystems within the Framework of Compe-tition Policy: Legal and Economic Approach
Authors: Kurdin A. A.
Published: January 2022

Digital transformation of markets and industries is one of the most difficult challenges for the modern competition policy. The transformation is closely connected to the formation of ecosystems and the adoption of artificial intelligence (AI). The authors of the article summarize main issues raised in the process of market behavior qualification and market structure assessment for AI inten-sive companies leading digital ecosystems. These issues include enhanced market concentration, risks of price discrimination and algorithmic collusion. One of the specific challenges in that sphere is the dependence of AI efficiency on big-data-based machine learning. This feature causes the in-crease in market concentration, strengthens the positions of market leaders, and potentially weakens the competitive environment. Antitrust bodies should improve their own digital competences and an-alytical capacities to prevent the loss of control over the market, as well as the elimination of AI benefits.
Transport of Solar Energetic Particles along Stochastic Parker Spirals
Authors: Bian N. H. , Li Gang
Published: January 2022

It was recently shown that, owing to the turbulent nature of the solar wind, the interplanetary magnetic field lines can be well described by stochastic Parker spirals. These are realizations of Brownian diffusion on a sphere of increasing radius, superimposed on the angular drift due to the solar rotation. In this work, we present a model for the transport of solar energetic particles along stochastic Parker spirals in the inner heliosphere. The transport model is governed by a set of four stochastic differential equations for the heliographic position

(
r
,
α
=
cos
θ
,
ϕ
)

of the guiding centers and the cosine of the pitch angle between the velocity vector and the Parker field. The model accounts for the role played by the combination of pitch angle scattering and magnetic focusing in the interplanetary medium. The effects of the dynamical evolution of the turbulence are included in the model by taking the field line angular diffusivity to be a function of the radial distance from the Sun. The heliolongitudinal distribution of particles propagating along stochastic Parker spirals is given by the wrapped Gaussian distribution. This angular distribution can also well be represented by the von Mises distribution that interpolates between the Gaussian distribution at small angular spread and the uniform distribution at large distances from the acceleration region of energetic particles in the aftermath of a solar eruption.
Spatially Resolved X-Ray Study of Supernova Remnant G306.3–0.9 with Unusually High Calcium Abundance
Authors: Weng Jianbin , Zhou Ping , Chen Yang , Leung Shing-Chi , Toonen Silvia , Perets Hagai B. , Nomoto Ken’ichi , Zenati Yossef , Vink Jacco
Published: January 2022

G306.3–0.9 is an asymmetric Galactic supernova remnant (SNR), whose progenitor has been thought to be a Type Ia supernova (SN), but its high Ca abundance appears inconsistent with the Type Ia origin. Hoping to uncover the reason for its asymmetry and the origin of this SNR, we performed a spatially resolved X-ray spectroscopic analysis of XMM-Newton and Chandra observation data. We divided the SNR into 13 regions and analyzed the spectra using two-temperature models (0.2 keV + 1 keV). Compared to the southwestern regions, the northeastern regions have higher metal abundances and a lower gas density. This suggests that the asymmetric morphology results from the nonuniform ambient environment. We found that neither Type Ia nor core-collapse SN models can account for the abnormally high abundance ratios of Ar/Si, Ca/Si, or the shape of the abundance curve. A comparison with the Ca-rich transient models suggests that G306.3–0.9 is likely to be the first identified Galactic Ca-rich transient remnant, although the theoretical production of element S is lower. We also note that the conclusion for the SNR’s origin relies on the measured abundance ratios and existing nucleosynthesis models. Between two groups of Ca-rich transient explosion models, we prefer the He shell detonation for an accreting white dwarf, rather than the merger of a white dwarf and a neutron star.
Angular Momentum Distributions for Observed and Modeled Exoplanetary Systems
Authors: Jiang Jonathan H. , Burn Remo , Ji Xuan , Fahy Kristen A. , Eggenberger Patrick
Published: January 2022

The distribution of angular momentum of planets and their host stars provides important information on the formation and evolution of the planetary system. However, mysteries still remain, partly due to bias and uncertainty of the current observational data sets and partly due to the fact that theoretical models for the formation and evolution of planetary systems are still underdeveloped. In this study, we calculate the spin angular momentum of host stars and the orbital angular momentum of their planets using data from the NASA Exoplanet Archive along with detailed analysis of observation dependent biases and uncertainty ranges. We also analyze the angular momentum of the planetary system as a function of star age to understand their variation in different evolutionary stages. In addition, we use a population of planets from theoretical model simulations to reexamine the observed patterns and compare the simulated population with the observed samples to assess variations and differences. We found the majority of exoplanets discovered thus far do not have the angular momentum distribution similar to that of planets in our solar system, though this could be due to the observation bias. When filtered by the observational biases, the model simulated angular momentum distributions are comparable to the observed pattern in general. However, the differences between the observation and model simulation in the parameter (angular momentum) space provide more rigorous constraints and insights on the issues that needed future improvement.
Structure of the Source I Disk in Orion-KL
Authors: Wright Melvyn , Bally John , Hirota Tomoya , Miller Kyle , Harding Tyler , Colleluori Keira , Ginsburg Adam , Goddi Ciriaco , McGuire Brett
Published: January 2022

This paper analyses images from 43 to 340 GHz to trace the structure of the Source I (SrcI) disk in Orion-KL with ∼12 au resolution. The data reveal an almost edge-on disk with an outside diameter ∼100 au, which is heated from the inside. The high opacity at 220–340 GHz hides the internal structure and presents a surface temperature ∼500 K. Images at 43, 86 and 99 GHz reveal structure within the disk. At 43 GHz there is bright compact emission with brightness temperature ∼1300 K. Another feature, most prominent at 99 GHz, is a warped ridge of emission. The data can be explained by a simple model with a hot inner structure, seen through cooler material. A wide-angle outflow mapped in SiO emission ablates material from the interior of the disk, and extends in a bipolar outflow over 1000 au along the rotation axis of the disk. SiO v = 0, J = 5–4 emission appears to have a localized footprint in the warped ridge. These observations suggest that the ridge is the working surface of the disk, and heated by accretion and the outflow. The disk structure may be evolving, with multiple accretion and outflow events. We discuss two sources of variability: (1) variable accretion onto the disk as SrcI travels through the filamentary debris from the Becklin–Neugebauer Object-SrcI encounter ∼550 yr ago; and (2) episodic accretion from the disk onto the protostar, which may trigger multiple outflows. The warped inner-disk structure is direct evidence that SrcI could be a binary experiencing episodic accretion.
A Broadband Solar Radio Dynamic Spectrometer Working in the Millimeter-wave Band
Authors: Shang ZiQian , Xu Ke , Liu Yang , Wu Zhao , Lu Guang , Zhang YuanYuan , Zhang Lei , Su YanRui , Chen Yao , Yan FaBao
Published: January 2022

Most solar radio telescopes operate below ∼18 GHz and cannot realize a complete frequency coverage of the microwave spectrum, especially in the optically thin regime during solar bursts, which can provide unique information about the magnetic field in the burst area in the solar corona. Therefore, the development of high-frequency microwave observation equipment is demanded by the solar radio community. In this paper, we present a microwave spectrum observation system operating at 35–40 GHz. In this system, the solar radio signal is acquired by an 80 cm Cassegrain circularly polarized antenna, which is then downconverted and channelized by a 35–40 GHz analog front end. The processed signal is finally sent to the digital receiver to generate the microwave dynamic spectrum, which is transmitted by gigabit Ethernet transmission to a host computer. The system performance has been tested and obtained as follows: a noise figure of ∼300 K, system linearity of >0.9999, time resolution of about 134 ms (default), and frequency resolution of 153 kHz. We further conduct calibration for this system and find that the observed Sun–Moon ratio is about 43.1–53.3 @ 35.25 GHz during the new Moon, and is quite close to the theoretical value. The coefficient of variation of the system is ∼0.61% in a 9 hr test. The system has been designed, developed, and tested for over 1 yr in Chashan Solar Observatory and is expected to play an important role in the microwave burst study in the 25th solar cycle.