bluuebunny/crossref_metadata_2025_split huggingface dataset:
Contação de história associada ao lúdico no ensino e aprendizagem de Inglês
Authors: Mincato Marina Camargo , Spicer-Escalante Maria Luisa , Felicetti Vera Lucia 
Published: January 2022

O presente artigo visa analisar quais as contribuições que uma prática de ensino fundamentada em uma abordagem lúdica a partir da contação de histórias pode proporcionar para a aprendizagem da Língua Inglesa no 1º Ano do Ensino Fundamental. Tomando-se por base a história The Very Hungry Caterpillar, do autor Eric Carle (1996), o estudo contempla atividades lúdicas em duas turmas de 1º Ano do Ensino Fundamental, sendo uma delas que tem a Língua Inglesa como componente curricular na rede privada de Caxias do Sul, e a outra em uma escola pública de Porto Alegre no âmbito do Projeto BIBLIOTECA VIVA: espaço de apoio aos processos de ensino e aprendizagem. Buscou-se, ainda, identificar os resultados da aprendizagem dos alunos nas duas realidades, comparando as possibilidades das escolas pública e privada. Com a execução da prática de ensino, evidenciou-se que, independentemente dos recursos disponíveis ou do espaço na grade curricular, o ensino de Língua Estrangeira, no caso a Língua Inglesa, pode acontecer sim no contexto escolar, seja ele público ou privado, uma vez que os alunos, mesmo não dispondo de conhecimento prévio, atingiram os objetivos previamente estipulados a partir do trabalho com os conteúdos propostos em sintonia com a contação de uma história de forma lúdica.
Retratos de (ausências de) práticas educativas utilizando TDIC em aulas de Matemática na Educação Básica
Authors: Antunes Victor Hugo Ricco Bone , Cibotto Rosefran Adriano Gonçales 
Published: January 2022

A presente pesquisa, de cunho qualitativo, teve como objetivo identificar, na opinião de futuros professores de Matemática em formação inicial, como ocorreu a prática educativa do uso das Tecnologias Digitais da Informação e Comunicação (TDIC) no ensino de Matemática, enquanto estudavam na Educação Básica. Os sujeitos, no momento de realização da pesquisa, cursavam o primeiro ano do curso de Licenciatura em Matemática em uma universidade pública paranaense em quatro campi diferentes. Para a coleta de dados, um questionário foi respondido por 71 sujeitos, dos quais três participaram de uma entrevista para complementar as informações. As análises foram apoiadas na Análise Textual Discursiva, que culminou na criação de três categorias, uma relacionada à forma e dificuldades na utilização das TDIC, outra às vantagens no uso desses recursos e a terceira aos motivos apontados pelos sujeitos para a não utilização de tecnologias digitais em suas aulas de Matemática, enquanto alunos. Os resultados evidenciam que apenas 14 sujeitos tiveram contato com as TDIC na Educação Básica, e que, dentre esses, 11 consideram que o uso dessas tecnologias para o ensino trouxe benefícios para sua compreensão dos conteúdos, tornando as aulas mais dinâmicas e atrativas. Os sujeitos relataram que diversos professores possuíam dificuldades em utilizar as TDIC.
Perspectiva de discentes do curso de Pedagogia sobre a tutoria e interação na EAD
Authors: Soares Deyse Mara Romualdo , Costa Cleide Jane de Sá Araújo , Mercado Luís Paulo Leopoldo 
Published: January 2022

A educação a distância (EAD) está fundamentada na interação entre os estudantes e professores, engajados num elo que determina o acesso nesse processo de ensino e conhecimento. Nesse cenário, a tutoria se destaca como uma das relevantes questões a ser estudada e abordada, pois, há a necessidade de formar esses profissionais para atuarem nessa modalidade de ensino. Diante disso, o artigo tem o objetivo analisar o papel da tutoria online e suas interações de narrativas, de acordo com a compreensão dos estudantes em uma disciplina eletiva do curso de Pedagogia, na modalidade presencial, de uma instituição de ensino superior (IES) pública do estado de Alagoas. De abordagem qualitativa e caráter exploratório, o estudo teve como sujeitos, sete estudantes do referido curso. Os instrumentos de coleta de dados foram: questionário e observação das interações dos estudantes nos fóruns. A análise se deu de forma interpretativa utilizando-se do software Sobek para auxiliar na análise, seguindo as categorias: tutoria; interações no ambiente virtual de aprendizagem (AVA); interação professor-tutor e estudantes. O estudo mostrou que para os estudantes, a experiência de atuar na tutoria foi um momento de aprendizagem sobre esse papel; consideraram que em alguns momentos não houve interações entre eles; enfatizaram que o papel da tutoria está arraigado na mediação do conhecimento do aluno da EAD. Torna-se relevante refletir sobre a inserção de disciplinas EAD no currículo das universidades, no processo de formação inicial dos professores.
Invasion meltdown and burgeoning threats of invasive fish species in inland waters of India in the era of climate change
Authors: Singh Atul K. , Srivastava Sharad C 
Published: January 2022

Abstract
Cyprinus carpio, Oreochromis niloticus and Clarias gariepinus are the most abundantly captured invasive fish species in the mid-stretch of the Ganga river. Fish yield and biomass data based on mean abundance by weight was calculated using algorithms and spatio-temporal population dynamics model for future prediction of these invasive fish species. Temporal biomass forecast based on mean abundance by wieght for the period from 2020 to 2029 was determined. The findings of this study predicted fish yield of 176 ± 16.33 kg km-1 day-1C. carpio and 55.43 ± 6.4 kg km-1 day-1 O. niloticus during 2029 which might result into 117.87% and 116.9% rise in temporal biomass of Common Carp and Tilapia respectively in a decade's time while 139.2% rise in temporal biomass was predicted for the invasive African catfish. The yield of invasive Common Carp, Tilapia and African Catfish was correlated with rainfall and temperature data using ANOVA and we found that variance was F = 1.36; p = 0.263 for C. carpio; F = 1.60; p = 0.326 for O. niloticus and F = 1.63; p = 0.101 for C. gariepinus, indicating that variance was very close for Tilapia and African Catfish. The observed values of variance indicated that climatic changes had more impact to these two species than to the Common Carp. The concrete and forecast values were calculated considering 95% lower and upper level of confidence, which was significant (p &lt;0.05) and the annual regression was found to be p &lt; 0.464, p &lt; 0.419 and p &lt; 0.499 for C. carpio, O. niloticus and C. gariepinus, respectively. Further, interactive performance of invaded C. carpio, O. niloticus and C. gariepinus was also assessed for understanding invasion meltdown. The results of mean abundance by weight based yield forecast of invaded Tilapia, Common Carp and African Catfish for the period of 2020 to 2029 suggest a stable production in the Ganga River in years to come. It also manifests a positive pattern of invasion in the times of climate change displaying invasion meltdown. This suggests increased pressures of fish invasions on temporal and spatial scales, and imposing new management challenges for freshwater ecosystems.
ANALISIS AKURASI DARI PERBEDAAN FUNGSI KERNEL DAN COST PADA SUPPORT VECTOR MACHINE STUDI KASUS KLASIFIKASI CURAH HUJAN DI JAKARTA
Authors: Pratiwi Noviana , Setyawan Yudi 
Published: January 2022

Abstrak. Penelitian ini difokuskan pada perbandingan beberapa fungsi kernel, cost dan proporsi data training pada Support Vector Machine terhadap akurasi pengklasifikasian curah hujan di Jakarta. Fungsi-fungsi kernel linier, Gauss dan polynomial digunakan untuk memodifikasi metode Support Vector Machine guna menyelesaikan kasus nonlinier yang sering terjadi pada kondisi real. Variabel yang digunakan dalam penelitian ini meliputi temperatur, kelembaban, penyinaran matahari dan kecepatan angin. Hasil analisis menunjukkan bahwa nilai support vector terkecil tidak memberikan akurasi yang tertinggi pada masing-masing fungsi kernel. Selain itu, proporsi dataset (training:testing) sebesar 90%:10% memberikan akurasi sedikit lebih tinggi dibandingkan dengan akurasi untuk proporsi 80%:20% untuk masing-masing fungsi kernel. Secara keseluruhan, akurasi tertinggi diperoleh pada proporsi 90%:10% oleh fungsi kernel linier dan polinom untuk cost 1 dan 1000 secara bersamaan yaitu 78,38%.Kata Kunci : Cost, Gauss, Kernel, linear, polynomial, Abstract. This research focuses on the comparison of several kernel functions, costs and proportions of data training on the Support Vector Machine to the accuracy of classifying rainfall in Jakarta. The linear, Gaussian and polynomial kernel functions were applied to modify the Support Vector Machine method to solve non-linear cases that often occur in actual conditions. The variables used in this study comprised of temperature, humidity, sunlight and wind speed. The analysis disclosed that the smallest support vector value did not provide the highest accuracy value for each kernel. In addition, the proportion of the dataset (training:testing) of 90%:10% provided a slightly higher accuracy compared to the accuracy for the proportion of 80%:20% for each kernel function. Overall, the highest accuracy attained at the proportion of 90%:10% by linear and polynomial kernel functions for cost 1 and 1000 simultaneously, which was 78.38%.
Bacteriemia por Helicobacter cinaedi en paciente con colitis ulcerosa: a propósito de un caso
Authors: Sidak Kateryna , Pérez-Tanoira Ramón , Gomez-Herruz Peña 
Published: January 2022

Resumen

Objectivos

Helicobacter cinaedi es un bacilo gramnegativo espirilar que afecta principalmente a pacientes inmunodeprimidos.

Caso clínico
Varón de 49 años que padece colitis ulcerosa desde 1992 y que acudió a las Urgencias de nuestro hospital por fiebre y dolor testicular. El paciente fue dado de alta con diagnóstico de epididimitis aguda izquierda, con probable transmisión sexual. En las Urgencias se le administró ceftriaxona intravenosa y fue dado de alta con doxiciclina como tratamiento durante 10 días y teniendo buena evolución. Los frascos aerobios de hemocultivos fueron positivos a los tres días de la extracción, en la tinción de Gram se observaron bacilos gramnegativos con morfología espiral en forma de sacacorchos. El análisis realizado tanto del contenido de la botella de hemocultivo como de las colonias crecidas en agar Campylosel incubado en ambiente microaerófilo a 42 °C se identificaron como H. cinaedi mediante el sistema Maldi-TOF Biotyper 3.0 (Bruker Diagnostics Inc.).

Conclusiones
El análisis directo de la botella de hemocultivo utilizando el sistema Maldi-TOF permitió identificar la etiología de la bacteriemia, ya que H. cinaedi no hubiese crecido en los medios habituales de cultivo. No existe ningún consenso con respecto al tratamiento, pero la combinación de ceftriaxona con doxiciclina puede ser eficaz para el tratamiento de la bacteriemia producida por H. cinaedi, la cual se produce debido a la translocación de la bacteria desde el tracto gastrointestinal. Esta bacteriemia va asociada al daño de mucosa intestinal por colitis ulcerosa y tiene lugar principalmente en pacientes inmunodeprimidos.
Isolation and characterization of bioactive phenolic compounds from Cinnamomum camphora barks
Authors: Shu Peng-Hua , Fei Ying-Ying , Li Ya-Min , Xu Ting , Lou Yue-Yue , Yang Yuan , Zhang Hui , Li Nian-Ci , Wei Xia-Lan , Xiao Fu-Gang , Huang Ji-Hong 
Published: January 2022

Abstract
Two new phenolic rhamnosides (1–2) and 12 known phenolic compounds (3–14) were isolated from the ethanolic extract of Cinnamomum camphora barks by repeated column chromatography. The structures of all isolated compounds were identified by comprehensive spectroscopic data analysis such as high-resolution electrospray ionization mass spectra, nuclear magnetic resonance, optical rotatory dispersion and chemical method. In vitro assay revealed that compound 8 showed strong inhibitory activity against tyrosinase, and compounds 1, 3–7, 8–9, 13 showed obvious acetylcholinesterase inhibitory activity.
Optimizing the two-stage adsorber of NaOH-activated coconut shell carbon for methylene blue removal
Authors: Wong Ada Chu Wen , Lawal Sirajo , Zaini Muhammad Abbas Ahmad 
Published: January 2022

Abstract
This work was aimed at optimizing the adsorbent mass and contact time and evaluating the performance of two-stage batch adsorber of NaOH-activated coconut shell carbon for methylene blue removal. To decrease the dye concentration from 1000 to 89.4 mg/L at any effluent volumes, the two-stage adsorber displays a small mass saving of 0.33% because of the high adsorbent affinity towards methylene blue at 1.80 L/mg. Meanwhile, the contact time can be minimized by 97.6% as opposed to that in one-stage adsorber. The sensitivity analysis of affinity on mass minimization shows a significant saving of 28.5% when the affinity is reduced to 0.01 L/mg. The response surface methodology was used to optimize the two-stage absorber for methylene blue removal, wherein the most significant parameter is the contact time.
Analyzing the existence of solution of a fractional order integral equation: A fixed point approach
Authors: Saha Dipankar , Sen Mausumi , Roy Santanu 
Published: January 2022

Abstract
This paper signifies the beauty of fixed point theory in the context of attaining the sufficient condition for the existence of the solution of a non-linear functional-integral equation in an unbounded interval. Here a non-linear integral equation (NLIE) involving a fractional operator is taken in the form of an operator equation. Utilizing the perception of measure of noncompactness (MNC) along with certain relevant assumptions, it is proved that the operator equation satisfies the Darbo condition for the product of operators in a Banach algebra. Finally, the result obtained is verified by the assistance of the numerical example.
Existence of solution to a nonlocal biharmonic problem with dependence on gradient and Laplacian
Authors: Shilpa  , Dwivedi Gaurav 
Published: January 2022

Abstract
In this article, we prove the existence of a solution to a nonlocal biharmonic equation with nonlinearity depending on the gradient and the Laplacian. We employ an iterative technique based on the mountain pass theorem to prove our result.
Positive solutions to mixed fractional p-Laplacian boundary value problems
Authors: Guezane-Lakoud Assia , Rodríguez-López Rosana 
Published: January 2022

Abstract
In this paper, we discuss the existence and uniqueness of a positive
solution for a p-Laplacian differential equation containing left and right
Caputo derivatives. By the help of the Guo–Krasnoselskii theorem, we prove the
existence of at least one positive solution. The existence of a unique
positive solution is established under the assumption that the corresponding
operator is α-concave and increasing.
Numerical examples are given to check the obtained results.
Negotiation of resources in everyday activities of a multilingual Berlin street market: a linguistic ethnography approach
Authors: Duman Çakır İrem 
Published: January 2022

AbstractThe Maybachufer Market is an urban street market in Berlin-Neukölln that constitutes a highly diverse urban context by bringing together people of different social, cultural, and linguistic backgrounds. Through linguistic ethnography, this paper explores the negotiation of various resources in everyday communicative practices and activities of this urban space. The market setting with its multiethnic and multilingual community constitutes a spatial repertoire with a rich pool of resources. Although German, Turkish, and English are prominent as local and international lingua francas, various other languages and resources are used in the market activities involving different types and modes of interaction. The study shows that the respective communicative practices, which seem random at first glance, in fact follow specific interactional patterns with respect to communicative goals and interactional roles, including different social relations and identity constructions. While exploring everyday activities and the linguistic behaviours at a highly diverse urban market, the study contributes to our understanding of spatial repertoires, metrolingual and convivial practices, and communicative patterns in multilingual and multiethnic interactions in highly diverse urban spaces.
Controlling and probing heat generation in an optical heater system
Authors: Tuxun Hairegu , Cai Zefeng , Ji Min , Zhang Baobao , Zhang Chengyun , Li Jinping , Yu Xudong , Fu Zhengkun , Zhang Zhenglong , Zheng Hairong 
Published: January 2022

Abstract
Understanding how plasmonic nanostructures generate heat upon exposure to light, and thus increase the local temperature of the surrounding medium is important for many applications. Reliable temperature manipulation requires analyzing the local temperature distribution as a function of laser density. In this work, an optical heating system containing silver nano-islands (Ag NIs) is designed to enable heat generation at the micro/nanometer scale and the local temperature can reach 1458 K. The heat generation by Ag NIs exposed to near-IR laser light, and the temperature distribution, are detected in situ via the fluorescence intensity ratio technique. It was found that the temperature of the system can be controlled by changing the excitation power. Furthermore, the temperature-dependent UCL of a single Y2O3:Yb3+/Er3+ microrod is studied by taking advantage of the controllable local temperature in the optical heating system. It was found that the color of the upconversion luminescence can be tuned by managing the local temperature, and conversely, the local temperature at the optical heater can be monitored by observing the color change of the rare-earth microrod. The real-time manipulation of plasmonic heating offers an opportunity to control outcomes of thermo-plasmonic effects, which then enables a myriad of practical applications.
Mechanical, thermal and morphological properties of polyoxymethylene nanocomposite for application in gears of diaphragm gas meters
Authors: Talebzadeh Malihe , Tavallali M. Sadegh , Aghili Alireza , Heidari Afshin 
Published: January 2022

Abstract
Polyoxymethylene (POM) gears have significant roles in the accuracy, robustness and stability of diaphragm gas meters. Therefore, in an attempt to enhance the properties of POM, four different POM-Cloisite 20A nanocomposites were produced in this study. Later tensile and bending strengths, hardness and Vicat softening temperature test, TGA, DSC, SEM and XRD were employed to experimentally evaluate, compare and contrast the mechanical, thermal and morphological properties of those nano-composites. The results proved that proper melt-mixing of 1% nanoparticle into the polymer matrix could lead to an exfoliated nanocomposite that enhanced the mechanical properties (Young’s modulus, yield stress, tensile and bending strengths and hardness) more than the other samples; however it reduced the degradation temperature. Finally, it did not significantly affect the melting temperature. These experimental results provide promising indications that the nano-based POM gears can exhibit better mechanical properties; hence ensuring an extended and robust performance of diaphragm gas meters.
Nuclear fusion: the promise of endless energy
Authors: Hunyadi Murph Simona E. , Murph Melissa A. 
Published: January 2022

Abstract
This chapter introduces the reader to the fundamentals and reasoning for exploring fusion energy. Fusion, the reaction of two hydrogen atoms colliding, is the process that powers the Sun and stars. Fusion works by turning small amounts of matter into vast amounts of energy. If realized on Earth, nuclear fusion could solve global energy demands for generations to come.
Medial Temporal Lobe Networks in Alzheimer's Disease: Structural and Molecular Vulnerabilities
Authors: de Flores Robin , Das Sandhitsu R. , Xie Long , Wisse Laura E. M. , Lyu Xueying , Shah Preya , Yushkevich Paul A. , Wolk David A. 
Published: January 2022

The medial temporal lobe (MTL) is connected to the rest of the brain through two main networks: the anterior-temporal (AT) and the posterior-medial (PM) systems. Given the crucial role of the MTL and networks in the physiopathology of Alzheimer's disease (AD), the present study aimed at (1) investigating whether MTL atrophy propagates specifically within the AT and PM networks, and (2) evaluating the vulnerability of these networks to AD proteinopathies. To do that, we used neuroimaging data acquired in human male and female in three distinct cohorts: (1) resting-state functional MRI (rs-fMRI) from the aging brain cohort (ABC) to define the AT and PM networks (n= 68); (2) longitudinal structural MRI from Alzheimer's disease neuroimaging initiative (ADNI)GO/2 to highlight structural covariance patterns (n= 349); and (3) positron emission tomography (PET) data from ADNI3 to evaluate the networks' vulnerability to amyloid and tau (n= 186). Our results suggest that the atrophy of distinct MTL subregions propagates within the AT and PM networks in a dissociable manner. Brodmann area (BA)35 structurally covaried within the AT network while the parahippocampal cortex (PHC) covaried within the PM network. In addition, these networks are differentially associated with relative tau and amyloid burden, with higher tau levels in AT than in PM and higher amyloid levels in PM than in AT. Our results also suggest differences in the relative burden of tau species. The current results provide further support for the notion that two distinct MTL networks display differential alterations in the context of AD. These findings have important implications for disease spread and the cognitive manifestations of AD.SIGNIFICANCE STATEMENTThe current study provides further support for the notion that two distinct medial temporal lobe (MTL) networks, i.e., anterior-temporal (AT) and the posterior-medial (PM), display differential alterations in the context of Alzheimer's disease (AD). Importantly, neurodegeneration appears to occur within these networks in a dissociable manner marked by their covariance patterns. In addition, the AT and PM networks are also differentially associated with relative tau and amyloid burden, and perhaps differences in the relative burden of tau species [e.g., neurofibriliary tangles (NFTs) vs tau in neuritic plaques]. These findings, in the context of a growing literature consistent with the present results, have important implications for disease spread and the cognitive manifestations of AD in light of the differential cognitive processes ascribed to them.