bluuebunny/crossref_metadata_2025 huggingface dataset:
An Effective Practice of ICT Tools in Higher Education to Improve the Teaching Learning Process
Authors:   Department of Electronics & Instrumentation Engineering, R V College of Engineering, Bengaluru., Swamy S Dr. Kendaganna , H Kopal Shaila ,   Department of Master of Computer Applications, R V College of Engineering, Bengaluru., N Sushmitha ,   Department of Information Science & Engineering, R V College of Engineering, Bengaluru., P Shruthi ,   Department of Computer Science and Engineering, Global Academy of Technology, Bengaluru., B V Dr.Uma ,   Department of Electronics & Communication Engineering, R V College of Engineering, Bengaluru.
Published: June 2021

Education is a process that simplifies learning. It should be a continuous process in one’s life to attain success. Over the decades, Information and Communication Technologies (ICT) have gradually begun to play a very important role in education, with their usage in education is growing worldwide continuously. These methods allow access to information through the internet. In education, ICT is the method of teaching that uses information and communication technology to support, improve and optimize the transfer of information, in turn leading to the invention of smart education. This improves the quality of teaching, the learning process of students and ultimately facilitates e-learning. It is commonly believed that technology can empower educators and students, making substantial contributions to knowledge and achievement. This paper gives an insight into the various tools that help instructors to develop online course content using Learning Management System tools. These tools allow the instructors to conduct online classes from any location using tutor tools and desktop recording tools to record screen output for further use. The instructor can assess the students in their course using assessment tools and can also enhance teaching methods using innovative teaching tools. The paper also throws limelight on the feedback taken by the faculty as well as the students about the usage of various tools in higher education which helps in analyzing the best suitable tools.
Close2U- An Android assistant to show nearby places by using various API service providers
Authors:   Dept of Electronics and Communication, R.V. College of Engineering, Bangalore, India., Giriteja Bille , Usharani Dr. ,   Dept of Electronics and Communication, R.V. College of Engineering, Bangalore, India., Raj Shivangi ,   Dept of Computer Science Engineering, P E S University, Bangalore, India.
Published: June 2021

With the immense use of android operating systems in today’s technology, Android apps became part of our daily lives and we use different apps for different purposes. The motivation behind every location-based application is to give the user a live experience with real data in real-time. To ease the searching of nearby places for the user, this android application provides the details of nearby locations like restaurants, hospitals, emergency services, travel services and also COVID vaccination centres like an assistant that answers the user’s query based on different queries. The apps that are available already use location and show the google maps inside the application which makes the application heavy and the cost of API request is high, but in this application, the user interface will be simple and it will fetch only the required data from different API Service providers and the data adapters for the application change based on different API service providers.
Analytical Method Development and Validation of Rp-Hplc Method for Simultaneous Estimation of Pyridoxamine Dihydrochloride and Acetylcysteine in Tablet Dosage Form.
Authors:   Department of Pharmaceutical Chemistry, Sahyadri College of Pharmacy, Methwade, Sangola, Solapur, Maharashtra, India., Ghule Sneha S. , Tamboli Ashpak M. ,   Department of Pharmaceutical Chemistry, Sahyadri College of Pharmacy, Methwade, Sangola, Solapur, Maharashtra, India., D. Patil Snehal ,   Department of Pharmaceutical Chemistry, Sahyadri College of Pharmacy, Methwade, Sangola, Solapur, Maharashtra, India.
Published: June 2021

A reverse-phase high-performance liquid chromatography (RP-HPLC) method for the simultaneous estimation of Pyridoxamine dihydrochloride and Acetylcysteine in the marketed formulation is developed. Chromatography carried out at 30oc temperature on Agilent Zorbax Bonus-RP (250 x 4.6 mm, 5 µ) coloum. Coloum using a mobile phase 0.1% trifluroacetic acid in water: acetonitrile (80:20v/v) with flow rate 1ml/min (DAD scan at 210nm). Validation parameters such as system suitability, linearity, precision, accuracy are considered as reported International Conference on Harmonization guidelines. The retention times for Pyridoxamine dihydrochloride and Acetylcysteine are 2 min and 3.4 min. The linearity range for Pyridoxamine dihydrochloride and Acetylcysteine is 30-70 µg/ml and 180-420 µg/ml. The %RSD for accuracy was found to be less than 2%. Hence the proposed method was found to be accurate, precise, reproducible, and specific and can be used for simultaneous analysis of these drugs in tablet formulation.
O ENSINO DO DESENHO E ILUSTRAÇÃO DE MODA NA PRÁTICA DA EXTENSÃO
Authors: Araújo Aderlange
Published: June 2021

O desenho é de grande importância para o profissional de moda, especialmente aquele que desenvolve produtos. Entretanto a realização de desenhos profissionais requer o domínio de técnicas que facilitem o entendimento da peça criada. Objetivos do curso de extensão é ensinar as técnicas tradicionais de desenho e ilustração, e também exercitar a capacidade imaginativa, de abstração e memória visual. A metodologia adotada no curso foi dividida em três etapas, no qual contou com aulas teóricas -práticas sobre desenhos e ilustração de moda. Os resultados obtidos na primeira etapa foram feitos diagnósticos, nos quais apontaram erros de observação do desenho (50%), criação do traço (75%), sombreado (90%), erros no formato do corpo (75%) e desproporção da figura humana (100%). Na segunda etapa os resultados obtidos foram melhoria no traço, no sombreado e proporção exata do corpo humano, obedecendo a grade humana de 8 cabeças e meias. Na última etapa foram atingidos resultados significativos acerca da manipulação das técnicas de aplicação de cores, trabalhando o sombreado, proporção e diferentes métodos de ilustração. Com isso, conclui-se que os discentes que participaram de todas as etapas do curso obtiveram melhores desempenhos e desenhos profissionais que no futuro facilitará a ingressão no mercado de trabalho.
DESENHO: CIÊNCIA E REPRESENTAÇÃO NO ESTUDO DE ABELHAS EUGLOSSAS NO CAMPUS DA UNIVERSIDADE ESTADUAL DE FEIRA DE SANTANA
Authors: Santana Wesley , De Souza Antônio Wilson
Published: June 2021

O presente artigo é uma comunicação do estágio em que se encontram aspesquisas em desenvolvimento no plano de atividades vinculadas ao Projetode Pesquisa Desenho e Ciência: contribuições, metodologias e técnicas. Oplano tem como objetivo a representação gráfica de insetos polinizadorespresentes no campus da Universidade Estadual de Feira de Santana. Nestetexto, se trata do estudo teórico sobre a relação desenho e ciência, bem comose procura transmitir as ideias básicas sobre desenho e, de modo especial,dar informações sobre o exercício do desenho e suas contribuições para oavanço do conhecimento científico. As reflexões sobre desenho derivam daexperiência prática do desenho de observação, no manuseio dos materiais einstrumento do desenho e, sobretudo, do estudo das espécies vegetaisselecionadas para a representação gráfica.
Habilidades profissionais colaborativas para engenheiros por meio da geometria descritiva
Authors: Cavalcanti Ana Cláudia Rocha , Melo Vandré Ricardo Pereira , De Souza Flávio Antonio Miranda
Published: June 2021

Os desafios profissionais contemporâneos nos campos das engenharias têm demandado novas habilidades em lidar com a forma, tanto nos meios de representação tradicionais e como nos meios digitais, dos quais, o lápis e papel e os aplicativos de auxílio ao projeto são coexistentes e complementares. A modelagem de objetos tem que ser precisa, antecipando erros para evitar desperdícios. A correção antecipada desses erros em sua fase projetual é, sem dúvida, fundamentada no conhecimento da geometria descritiva. Do ponto de vista das habilidades interpessoais, novas demandas têm sido freqüentes, tais como cooperação, colaboração, interatividade, entre outras. Portanto, esse artigo discute as experiências do ensino da geometria descritiva nos cursos de engenharia civil e engenharia mecânica da Universidade Federal de Pernambuco. O estudo faz uso de metodologias ativas de ensino e aprendizagem para a aquisição de visualização espacial que estimulam a colaboração para aprender a aprender num cenário de constantes inovações. Os estudantes utilizaram ferramentas tradicionais de desenho (lápis e papel) e ferramentas digitais (AutoCAD e SketchUp) aplicadas na resolução de problemas. A inovação refere-se ao uso de metodologias ativas para a apreensão de conteúdos e habilidades colaborativas. Os estudos apresentados demonstram que os estudantes assumiram papeis ativos na aquisição do conhecimento, interagindo e colaborando com diferentes grupos de trabalho.
Criando maquetes de papel a partir de modelos numéricos tridimensionais: considerações acerca da modelagem, planificação, corte a lâmina e montagem dos objetos
Authors: Santana Maria Luiza , Yong Rafaela , Checcucci Érica
Published: June 2021

Este artigo é o resultado parcial de uma pesquisa que estuda a modelagem efabricação digital de formas arquitetônicas complexas. Apresenta e discuteexperimentos que investigaram métodos e técnicas de criação de maquetes depapel utilizando como base modelos numéricos que foram planificados, cortadosà lâmina e colados. O principal objetivo foi construir conhecimento esistematizar orientações para otimizar o processo de transformação do modelodigital no modelo físico de modo a garantir bom acabamento e precisãoadequada, de acordo com a escala escolhida. Esta pesquisa é qualitativa,caracterizada pela realização de estudos exploratório-descritivos combinados,com crescente aumento da complexidade das formas construídas. Os objetosforam modelados no software SketchUp, planificados, editados e organizadospara corte utilizando o Inkscape e enviados para a cortadora de papel através doprograma Silhouette Studio. Dentre os principais resultados da pesquisa,destaca-se a sistematização de um conjunto de orientações para a otimização dotrabalho de fabricação de maquetes em papel. Para isto, a pesquisa possibilitoua produção de um quadro comparativo onde cada experimento pôde servir comoparâmetro avaliativo dos métodos de fabricação digital utilizados.
Arquitetura de dentro para fora: oficina de dimensionamento de projeto com gabaritos positivos.
Authors: Villares Igor , Tsutsumi Walkyria
Published: June 2021

Um dos momentos decisivos no curso de arquitetura e urbanismo acontece quando os alunos, após trabalhar com composições espaciais e adquirir conhecimentos acerca do desenho arquitetônico, passam a conceber e representar seus projetos através do desenho e não apenas através maquete física volumétrica. Neste momento, o aluno passa a lidar com a espacialidade de maneira diferente, precisa ser capaz de propor espaços e não apenas representá-los através do desenho,precisando, portanto, da habilidade para dimensionar espaços que irão receber as atividades advindas do programa de projeto. Notando as dificuldades nesta vital fase do ensino das disciplinas de projeto arquitetônico, o presente artigo apresenta ferramentas de ensino de dimensionamento de projeto através de módulos de mobiliário em oficinas denominadas de “Arquitetura de Dentro para Fora” desenvolvidas através de três semestres na disciplina de Atelier de Projeto III,ministrada na Universidade Católica de Pernambuco, em Recife-PE. Além da discussão dos resultados obtidos, que demonstraram serem superiores aos resultados utilizando a metodologia tradicional, o artigo também discorre sobre as diferentes metodologias e fontes de pesquisa para o dimensionamento de projeto arquitetônico e sua representação.
Um panorama da utilização dos ambientes digitais no ensino de arquitetura frente aos níveis de computabilidade: Revisão a partir dos Congressos Graphica (2005-2017)
Authors: De Vasconselos Tássia Borges , Sperling David
Published: June 2021

Este artigo, versão ampliada de trabalho apresentado no Graphica 2019, apresenta resultados parciais de pesquisa em nível de doutorado acerca da apropriação de tecnologias de representação gráfica e design digital no ensino de arquitetura no contexto brasileiro. Este estudo toma como referências as sistematizações estabelecidas por Oxman (2006) sobre a interação entre o projetista e a representação de um objeto concebido com auxílio de ambiente digital, e as que realizou posteriormente Kotnik (2010) sobre os níveis de computabilidade no processo de projeto. Assim, foi estruturada uma pesquisa correlacional, que busca a sistematização do cenário a partir de dois conjuntos de dados. O primeiro focado em compreender aspectos inerentes aos cursos de graduação em Arquitetura e Urbanismo, e o segundo a partir da classificação de práticas didáticas selecionadas por meio de uma revisão sistemática baseada em handsearching. Apresenta como resultado dados e reflexões sobre as práticas de design digital no ensino em Arquitetura relatadas nos Congressos Graphica no período de 2005 a 2017.
LABORATÓRIO GRUPO DE EXPERIMENTAÇÃO EM ARTEFATOS 3D: experiências de ENSINO, PESQUISA e EXTENSÃO
Authors: Mendes Leticia Teixeira , Laurentino Auta Luciana , Seabra Filho Sadi Da Silva , Alessio Pedro Martins
Published: June 2021

Frente ao crescimento significativo de temas que envolvem as tecnologias digitais nos currículos de cursos de graduação e pós graduação, bem como seu potencial de mercado, entende-se ser necessário que o ambiente acadêmico esteja preparado para responder ao desafio de ampliar e consolidar experiências didáticas e capacitação de pessoas por meio da implantação de um laboratório de prototipagem e fabricação digital. Dentro desse contexto, o presente artigo pretende apresentar e discutir ações/atuações do Laboratório do Grupo de Experimentação em Artefatos 3D, após a implementação do seu espaço físico junto ao Departamento de Expressão Gráfica, da Universidade Federal de Pernambuco. As atividades apresentadas demonstram o potencial da introdução das tecnologias digitais, nas áreas de ensino, pesquisa e extensão, e sua contribuição para a melhoria das atividades acadêmicas por meio do uso de novas abordagens integrando os conhecimentos das áreas da geometria gráfica, arquitetura e engenharia. A metodologia proposta baseia-se no método da pesquisa-ação e na prática reflexiva. Acreditamos que essa mediação do emprego das tecnologias no ensino, na pesquisa e na extensão, expostos nos casos apresentados neste trabalho, vem demonstrando resultados que confirmam o compromisso de uma educação voltada para a sociedade.
RELATIONSHIP BETWEEN ACADEMIC STRESS, STUDY HABITS ANDACADEMIC ACHIEVEMENT OF UNDERGRADUATE STUDENTS OF UNIVERSITIES
Authors: Kashif Mahvish Fatima , Mannan Tahira , Shaheen Faiza
Published: June 2021

It is crucial for students to lessen the academic stress with improving their study habits as they both are important for their academic achievement. Thus, the objective of the research was to explore the relation of academic stress and study habits with academic achievement of undergraduates in universities of Lahore. Research design of study was quantitative approach, followed by correlation research to obtain the objectives. Total population (undergraduate students of education departments), 1721 students; 1214 were from public universities and 507 were from private sector universities. Data was collected by using two questionnaires. The results of research showed that academic stress predicts 54.6% variance in the academic achievement whereas study habits contribute 53.2% variation in academic achievement. Results also showed that academic stress has significant but negative relation with academic achievement of students. It was observed that study habit had significant and positive relationship with academic achievement.
Distribution and molecular characterization of Malassezia species isolated from students with pityriasis versicolor in Haiphong City, 2016 - 2017
Authors: Hien Vo Thi Thanh , Anh Do Ngoc
Published: June 2021

This research aims to fnd out the Malassezia species in secondary school students with pityriasis versicolor in Hai Phong City, Vietnam. A total of 110 Malassezia fungal strains from 109 students were isolated from pityriasis versicolor patients in four secondary schools in Hai Phong City from August 2016 to December 2017. These samples were cultured on mDixon agar medium containing antibiotic at 32oC for 7 days. All Malassezia isolates were correctly identifed to the species level by CHROMagarTM Malassezia medium and molecular tools (PCR-RFLP and D1/D2 region sequencing). The results showed that M. furfur and M. japonica are two species that caused pityriasis versicolor at the rate of 96.4% and 3.6%, respectively. Most of these Malassezia isolates were isolated in the back, face, and neck. M. furfur was discovered in both areas, while M. japonica was found only in the urban area. M. furfur and M. japonica were two Malassezia species causing pityriasis versicolor in secondary school students in Hai Phong City of Northern Vietnam, in which M. furfur was more common than M. japonica, whereas other Malassezia species were not detected.
Factors associated with constipation in older patients at National Geriatric Hospital
Authors: Anh Nguyen Trung , Xuan Dang Thi , Thu Nguyen Thi Hoai , Huyen Vu Thi Thanh
Published: June 2021

A cross-sectional study was carried out among 321 patients aged 60 years old or over at National Geriatric Hospital to evaluate the association between some factors and constipation in older people from July to October 2020. Data were collected by using a designed questionnaire included: general information, ﬂuid intake, Rome IV criteria, Instrumental Activities of Daily Living scale (IADLs) and Activities of Daily Living scale (ADLs). Multivariate logistic regression was used to assess association between constipation and related factors. The mean of age was 71.6 ± 8.2 (year). 58.3% of participants had normal BMI. Water intake and physical function were signifcantly associated with constipation (p < 0.01). Multivariate logistic regression between constipation and related factor showed that water intake > 1500ml and independent instrumental activities of daily livings were signifcantly associated with decreased constipation risk (OR = 0.361; 95% CI: 0.148 - 0.882 and OR = 0.832; 95%CI: 0.703 - 0.985, respectively). To prevent constipation, it is important to encourage older patients to drinking enough at least 1500ml water per day and do regular physical activity
Treatment adherence and related factors among patients in the unique MMT private clinic in Vietnam in 2018
Authors: Tuan Le Anh , Thuy Bui Thanh , Thuy Nguyen Thi Minh , Huyen Pham Thi Thu , Hoa Kieu Thi , Huong Nguyen Thu
Published: June 2021

A cross-sectional study using the take-all sampling method was conducted among patients in the unique MMT private clinic in Vietnam in 2018. The study aimed to describe treatment adherence status and related factors of the patients. Data on socioeconomic characteristics, behaviours, treatment process, level of social/family support were collected and analyzed. The results showed that 88.2% of MMT patients completely adhere to the treatment program. Factors positively related to treatment adherence of MMT patients were living with spouse/partner (OR = 3.02 95% CI: 1.11 – 8.19), not using illicit drugs during MMT treatment (OR = 5.88; 95% CI: 1.77 – 19.56). The methadone clinic should pay attention to the factors positively related to treatment adherence in the counselling and support process for the patients.
El cielo no sabe bailar solo
Authors:   Facultad de Artes y Humanidades, Universidad de los Andes, _ Ondjaki
Published: June 2021

El cielo no sabe bailar solo reúne dos novelas —Buenos días, camaradas y La AbuelaDiecinueve y el secreto del soviético— y un libro de cuentos —Los de mi calle—, publicados en portugués por separado, los cuales, sin embargo, se orquestan sobre una misma temática: las vivencias de un niño, ambientadas en los años ochenta en la ciudad de Luanda, Angola. Ondjaki, por medio de su narrador infantil, nos lleva de la mano a través de un panorama íntimo y autobiográfico, marcadamente consciente y con la justa medida de lirismo.
El laberinto de la saudade. Psicoanálisis mítico del destino portugués
Authors:   Facultad de Artes y Humanidades, Universidad de los Andes, Lourenço Eduardo
Published: June 2021

«Lo que yo quise hacer, sobre todo, sin querer hacerlo de una manera determinada, sino que se fue haciendo necesario poco a poco, fue una especie de tentativa de comprender cómo funciona el imaginario portugués. ¿Qué es lo que somos? Somos lo que soñamos, los mitos que construimos. ¿Cuál es la mitología portuguesa? ¿Con arreglo a qué horizonte ha funcionado la cultura portuguesa? ¿Qué tiene de particular? Eso sólo se comprende examinando sus vestigios, que son la poesía y la ficción», dice Eduardo Lourenço. Y también afirma: «El asunto propio de nuestro libro no es tanto la “preocupación por Portugal”, preocupación que está incluida por definición en todas las tentativas de autognosis, [sino] por una imagología, es decir, por el discurso crítico sobre las imágenes que [los portugueses] hemos forjado sobre nosotros mismos». Tal como Octavio Paz en El laberinto de la soledad, sobre el caso mexicano, Lourenço estudia en El laberinto de la saudade una determinada imagología. El laberinto luso es una obra crucial para captar, soñar y volver a imaginar el destino de Portugal.
PENINGKATAN PRESTASI BELAJAR PAI SISWA SD BERSIH ITU SEHAT MELALUI MULTIMEDIA INTERAKTIF
Authors: FATIMAH FATIMAH
Published: June 2021

Penelitian ini bertujuan untuk mengatasi masalah yang ada dalam pembelajran Tema Bersih itu sehat dengan menggunakan multimedia interaktif di kelas IV SDN 1 Benteng Kecamatan Baranti Kabupaten Sidenreng Rappang. Penggunaan multimedia interaktif pada pembelajaran bersih itu sehat dapat mempengaruhi peningkatan prestasi belajar peserta didik, dimana pada pra observasi sebelum menggunakan multimedia interaktif prestasi belajar peserta didik hanya sekitar 70 % ketuntasan belajarnya dan nilai rata-rata kelas hanya mencapai nilai 70 masih dibawah nilai KKM yaitu 75. Sedangkan setelah menggunakan  multimedia interaktif dalam pembelajaran, prestasi belajar peserta didik meningkat pada siklus I nilai rata-rata kelas sudah bertambah menjadi 75 dan pada siklus II nilai rata-rata Kelas menjadi 85, sedangkan untuk ketuntasan klasikalnya pada siklus I persentae p mencapai 75%  dan pada siklus II meningkat lagi pmenjadi 90%, dimana indicator keberhasilan yaitu 85%. Ini artinya bahwa dengan menggunakan multimedia interaktif sebagai salah satu alat penyampai pesan dapat mempengaruhi prestasi belajar peserta didik.
MENINGKATKAN HASIL BELAJAR IPS MENGGUNAKAN MEDIA GAMBAR BAGI SISWA KELAS IV SDN 002 BELAKANG PADANG
Authors: SARMAWATI SARMAWATI
Published: June 2021

Penelitian ini bertujuan untuk meningkatkan hasil belajar IPS dengan menggunakan  media gambar pada siswa kelas IV SDN 002 Belakang Padang  Kota Batam.  Penelitian ini adalah Penelitian Tindakan Kelas (Classroom Action Research) model Kemmis dan Mc. Taggart. Penelitian dilaksanakan pada semester II tahun ajaran 2016/2017 dalam dua siklus setiap siklus ada dua pertemuan. Subjek penelitian ini siswa kelas IV SDN 002 Belakang Padang  Kota Batam yang berjumlah 25 siswa. Teknik pengumpulan data yang digunakan adalah tes, observasi dan dokumentasi. Sementara instrument pengumpulan data menggunakan soal tes, lembar observasi dan dokumen. Teknik analisis data dilakukan secara deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa ada peningkatan hasil belajar IPS kelas IV SDN 002 Belakang Padang  Kota Batam.. Hasil belajar saat pratindakan, rata-rata kelas adalah 65,76 untuk ketuntasan ada 12 siswa atau 48% dan belum tuntas ada 13 siswa atau 52%. Hasil ini belum memenuhi KKM yaitu 70,00. Pada siklus I diperoleh peningkatan hasil rata-rata kelas71,92, ketuntasan ada 15 siswa atau 60% dan belum tuntas ada 10 siswa atau 40% berarti ada kenaikan nilai rata-rata pra tindakan ke siklus I sebesar 6,16, Sedangkan siklus II hasilnya mengalami kenaikan lagi yaitu rata-rata kelas meningkat menjadi 76,90 dan ketuntasan ada 22 siswa atau 88% dan belum tuntas ada 3 siswa atau 12%, dengan demikian ada kenaikan rata-rata dari siklus I ke siklus II sebesar 4,98. Selain itu keaktifan siswa dalam mengikuti pelajaran juga meningkat. Hal ini ditandai dengan meningkatnya keaktifan siswa dalam bertanya, menjawab pertanyaan dan mengemukkan pendapat.
PENERAPAN METODE STORYTIVITY UNTUK MENINGKATKAN KEMAMPUAN MENULISKAN KEMBALI CERITA ANAK PADA SISWA KELAS II-B SD AL MUTTAQIEN SURABAYA TAHUN PELAJARAN 2018-2019
Authors: WIDIANA ERLIN
Published: June 2021

Tujuan penelitian penerapan metode storytivity ini adalah untuk meningkatkan kemampuan menuliskan kembali cerita anak dan meningkatkan kualitas proses pembelajaran menuliskan kembali cerita anak pada siswa kelas II-B SD Al Muttaqien Surabaya melalui penelitian tindakan kelas yang terdiri atas pratindakan, tindakan siklus I, dan tindakan siklus II. Data yang diambil dalam penelitian ini merupakan data observasi tindakan guru dan siswa pada siklus I dan II serta tes menuliskan kembali cerita anak setelah adanya tindakan penerapan storytivity. Dari hasil penelitian diperoleh data terjadi peningkatan pembelajaran menuliskan kembali cerita anak yang  ditandai dengan meningkatnya keaktifan, motivasi, dan percaya diri siswa dalam pembelajaran pada setiap siklusnya. Kemampuan siswa dalam menuliskan kembali cerita anak menjadi lebih baik.  Siswa telah mencapai kriteria ketuntasan minimal sebanyak 12% pada pratindakan, 50% pada siklus I, dan 90% pada siklus II. Dengan demikian dapat dikemukakan bahwa pembelajaran dengan penerapan metode storytivity mampu meningkatkan kualitas proses pembelajaran menuliskan kembali cerita anak dan meningkatkan kemampuan menuliskan kembali cerita anak pada siswa kelas II-B SD Al Muttaqien Surabaya semester ganjil tahun pelajaran 2018-2019.
PENERAPAN METODE DEMONTRASI UNTUK MENINGKATKAN HASIL BELAJAR IPA SISWA KELAS IV SD NEGERI 005 SIMPANG RAYA KECAMATAN SINGINGI HILIR TAHUN PELAJARAN 2018/2019
Authors: MULYATI TRI
Published: June 2021

Penelitian ini bertujuan untuk mengetahui apakah Penerapan Metode Demontrasi dalam proses belajar mengajar dapat meningkatkan hasil belajar siswa pada mata pelajaran IPA. Metode domonstrasi merupakan metode mengajar yang menyajikan bahan pelajaran dengan mempertunjukkan secara langsung objeknya atau caranya melakukan sesuatu untuk mempertunjukkan proses tertentu. Demonstrasi dapat digunakan pada semua mata pelajaran. Dalam pelaksanaan demonstrasi guru harus sudah yakin bahwa seluruh siswa dapat memperhatikan dan mengamati terhadap objek yang akan didemonstrasikan. Sebelumnya proses demonstrasi guru sudah mempersiapkan alat–alat yang digunakan dalam demonstrasi tersebut. Hasil Penelitian menunjukkan aktivitas guru pada siklus I mendapat skor 22, dan pada siklus II meningkat menjadi 27 ini menunjukkan bahwa aktivitas guru meningkat. Untuk aktivitas siswa pada siklus I adalah 78 dengan kategori tinggi dan pada siklus II meningkat menjadi 102 dengan kategori sangat tinggi. Dan mengenai hasil bealajar siswa pada siklus I rata-rata kelasnya adalah 75,65 dengan kategori tinggi pada siklus II meningkat menjadi 87,39 dengan kategori sangat tinggi. Dengan ini menandakan bahwa dengan Penerapan Metode Demontrasi dapat meningkatkan hasil belajar IPA siswa kelas IV SD Negeri 005 Simpang Raya  Kecamatan Singingi Hilir Tahun Pelajaran 2018 / 2019.
UM PANORAMA DAS PESQUISAS QUE VERSAM SOBRE O USO DO SMARTPHONE NO ENSINO DE CIÊNCIAS DOS ANOS INICIAIS DA EDUCAÇÃO BÁSICA
Authors: Pavnoski Luciano , Motta Marcelo , Loss Tanieli , Hilger Thaís Rafaela
Published: June 2021

O uso de smartphones pode ser direcionado aos meios educacionais, possibilitando processos educativos diferenciados aos Ensino de Ciências. Nessa direção, propomos neste artigo, identificar os achados nas dissertações e teses que utilizam os smartphones para o ensino de Ciências para os Anos Iniciais do Ensino Fundamental voltados a TAS – Teoria da Aprendizagem Significativa. Nesse viés, realizamos uma pesquisa qualitativa investigativa por meio de levantamento de pesquisas que tratam dessa temática. Assim, realizando o levantamento na Biblioteca Digital Brasileira de Teses e Dissertações, em pesquisas de 2018 a 2020, tivemos um retorno de 67 trabalhos que tratavam do uso de tecnologias digitais no Ensino de Ciência no Ensino Fundamental I. Aplicando os critérios de exclusão e inclusão, houve um retorno de apenas duas pesquisas que abordavam nosso objeto de estudo. Observando-as, trouxemos aspectos sobre o uso pedagógico de tal tecnologia a área de Ciências e percebemos, para que haja contribuições nos processos de ensino e de aprendizagem de Ciências, no viés da TAS.
Efficacy of a portable, moderate-resolution, fast-scanning differential mobility analyzer for ambient aerosol size distribution measurements
Authors: Amanatidis Stavros , Huang Yuanlong , Pushpawela Buddhi , Schulze Benjamin C. , Kenseth Christopher M. , Ward Ryan X. , Seinfeld John H. , Hering Susanne V. , Flagan Richard C.
Published: June 2021

Abstract. Ambient aerosol size distributions obtained with a compact scanning mobility analyzer, the “Spider” differential mobility analyzer (DMA), are compared to those obtained with a conventional mobility analyzer, with specific attention to the effect of mobility resolution on the measured size distribution parameters. The Spider is a 12 cm diameter radial differential mobility analyzer that spans the 10–500 nm size range with 30 s mobility scans. It achieves its compact size by operating at a nominal mobility resolution R=3 (sheath flow = 0.9 L min−1; aerosol flow = 0.3 L min−1) in place of the higher ratio of sheath flow to aerosol flow commonly used. The question addressed here is whether the lower resolution is sufficient to capture key characteristics of ambient aerosol size distributions. The Spider, operated at R=3 with 30 s up- and downscans, was co-located with a TSI 3081 long-column mobility analyzer, operated at R=10 with a 360 s sampling duty cycle. Ambient aerosol data were collected over 26 consecutive days of continuous operation, in Pasadena, CA. Over the 17–500 nm size range, the two instruments exhibit excellent correlation in the total particle number concentrations and geometric mean diameters, with regression slopes of 1.13 and 1.00, respectively. Our results suggest that particle sizing at a lower resolution than typically employed may be sufficient to obtain key properties of ambient size distributions, at least for these two moments of the size distribution. Moreover, it enables better counting statistics, as the wider transfer function for a given aerosol flow rate results in a higher counting rate.
The impact of the freeze–melt cycle of land-fast ice on the distribution of dissolved organic matter in the Laptev and East Siberian seas (Siberian Arctic)
Authors: Hölemann Jens A. , Juhls Bennet , Bauch Dorothea , Janout Markus , Koch Boris P. , Heim Birgit
Published: June 2021

Abstract. Permafrost degradation in the catchment of major Siberian rivers, combined
with higher precipitation in a warming climate, could increase the flux of
terrestrially derived dissolved organic matter (tDOM) into the Arctic Ocean
(AO). Each year, ∼ 7.9 Tg of dissolved organic carbon (DOC) is
discharged into the AO via the three largest rivers that flow into the
Laptev Sea (LS) and East Siberian Sea (ESS). A significant proportion of this
tDOM-rich river water undergoes at least one freeze–melt cycle in the
land-fast ice that forms along the coast of the Laptev and East Siberian seas
in winter. To better understand how growth and melting of land-fast ice
affect dissolved organic matter (DOM) dynamics in the LS and ESS, we
determined DOC concentrations and the optical properties of coloured
dissolved organic matter (CDOM) in sea ice, river water and seawater. The
data set, covering different seasons over a 9-year period (2010–2019), was
complemented by oceanographic measurements (T, S) and determination of the
oxygen isotope composition of the seawater. Although removal of tDOM cannot be ruled out, our study suggests that
conservative mixing of high-tDOM river water and sea-ice meltwater with
low-tDOM seawater is the major factor controlling the surface distribution
of tDOM in the LS and ESS. A case study based on data from winter 2012 and
spring 2014 reveals that the mixing of about 273 km3 of
low-tDOM land-fast-ice meltwater (containing ∼ 0.3 Tg DOC)
with more than 200 km3 of high-tDOM Lena River water
discharged during the spring freshet (∼ 2.8 Tg DOC yr−1)
plays a dominant role in this respect. The mixing of the two low-salinity
surface water masses is possible because the meltwater and the river water
of the spring freshet flow into the southeastern LS at the same time every
year (May–July). In addition, budget calculations indicate that in the
course of the growth of land-fast ice in the southeastern LS,
∼ 1.2 Tg DOC yr−1 (± 0.54 Tg) can be expelled from
the growing ice in winter, together with brines. These DOC-rich brines can
then be transported across the shelves into the Arctic halocline and the
Transpolar Drift Current flowing from the Siberian Shelf towards Greenland. The study of dissolved organic matter dynamics in the AO is important not
only to decipher the Arctic carbon cycle but also because CDOM regulates
physical processes such as radiative forcing in the upper ocean, which has
important effects on sea surface temperature, water column stratification,
biological productivity and UV penetration.
How do different elements of a warning message influence spontaneous reaction to the warning and intended behavioural change? A factorial survey experiment
Authors: Popovic Nathalie , Asseburg Julia , Weber Sebastian
Published: June 2021

Weather warnings serve the purpose of informing the public about potentially dangerous weather events so that they can take precautionary measures to avoid harm and damages. However, weather warning are often not user-oriented, which leads to poor understanding and low compliance rate. Moreover, warnings are often received during daily activities when the decision whether to respond to the warning might be taken within only a few seconds. The present study focuses on the question, which elements of a warning message are the most important to influence the spontaneous reaction to the warning and the intention to take action.

In a factorial survey experiment with 2000 Swiss citizen, we tested the influence of different elements of a warning message on people’s spontaneous appraisal of the warning and their intended behavioural change. The elements of the warning message we tested for were physical values (e.g. amount of rain in mm.), impact information, behavioural recommendations, warning level and labels for the severity of the event (e.g. “very severe”). We used an implicit association test to measure spontaneous appraisal of the warning message with respect to understanding, trust, risk perception and personal relevance. After the implicit association test, participants explicitly answered whether they would change their behaviour in response to the warning.

The experimental setup allows us to test for causal relations between the different elements of the warning message and the spontaneous reaction and intended behavioural response. Measuring the implicit associations provides us with a better understanding of the first reactions triggered by the warning elements and how that impacts intended behavior.

Our results (available by the end of April) will shed light on the question which information is the most important to serve as a wake-up call – a question that becomes even more relevant as warnings are increasingly transmitted via push-notifications on mobile phones. At the same time, our study provides a further insight into the cognitive process that underlies the decision to take protective actions.
Comparing NWP and satellite-based irradiance forecasts in Fennoscandia
Authors: Kallio-Myers Viivi , Riihelä Aku , Lindfors Anders , Schonach David , Gregow Erik , Carlund Thomas
Published: June 2021

Solar energy production is growing at a very high rate. This growth is present also in Fennoscandia, where solar energy can answer to the renewable energy need during the long summer days. Solar energy is a naturally fluctuating energy source, one that requires the use of solar irradiance forecasts for optimal operation. In northern locations clouds cause the largest fluctuations of irradiance, which is why the forecasting of solar irradiance is often focused on forecasting the movement of clouds. At high latitudes there are also specific challenges due to the location, for instance estimating cloud location at the edge of the geostationary satellite instrument viewing area.

Forecasting irradiance is possible using various methods. Methods using satellite imagery, for instance, are good at forecasting irradiance for a few hours forward, while Numerical Weather Prediction (NWP) methods are recognised as superior for forecasting the next day. Validations have been made for various methods and setups, at several different locations, and for example the satellite-imagery-based method Solis-Heliosat has been shown to work well also at high latitudes. Operational NWP models, however, are not often validated for this specific purpose.

To understand the performance of operational local area NWP models in irradiance forecasting in Fennoscandia, we have compared and validated NWP irradiance forecasts at several measurement stations in Finland and Sweden. In the comparison, we have included the operational weather forecast model in the Nordic countries, the MetCoOp Ensemble Model (MEPS), as well as the MetCoOp Nowcasting Model (MNWC). Additionally, we have included the Solis-Heliosat method and a persistence method in the comparison.

Initial results show MEPS to have a steady, small relative bias error during the forecast, particularly after the first hours. The relative Root Mean Square Error (rRMSE) is also steady with only a slight increase during the whole forecast. MNWC somewhat underpredicts irradiance in the beginning, but the errors improve throughout the forecast. Solis-Heliosat has good initial accuracy, but the quality deteriorates very fast, with MEPS and MNWC outperforming the method after a 1-3 hour lead time. The Persistence method, as expected, has a very good bias, but also a very fast increasing rRMSE with forecast lead time.

The results show the NWP methods to be very suitable for forecasting irradiance. Differences in best performing lead times and varying run times between the methods increase our interest in using both NWP and satellite-based methods in forecasting irradiance, to get the most optimal accuracy for both short and long-term forecasting.

 
Verification of WAFC in-flight icing forecasts using satellite observations
Authors: Steele Christopher , Gill Philip , Buchanan Piers , Bennett Katie , Morcrette Cyril , Francis Peter , Cheung Jacob
Published: June 2021

In-flight icing constitutes a major hazard to aviation, and so it is vital to be able to forecast the risk of icing accurately. The Met Office is one of two World Area Forecast Centres (WAFC) to routinely produce and validate icing forecasts. The existing verification methodology of Bowyer and Gill (2018) evaluates each WAFC forecast against satellite-derived icing potential. However, the methodology currently evaluates the full Global forecast data, whereas satellite-derived icing potential is only available during daytime. At night, the presence of cloud is reported, and so only correct rejections and false alarms are possible during nocturnal hours.

We first present an extension to the existing verification methodology by restricting the analysis to only include daytime data and demonstrate that this significantly reduces the degree of over-forecasting previously reported. In addition, we examine the performance of the new WAFC icing severity forecasts and compare against the routine product, during Winter 2020/2021.

There are two major challenges when comparing forecast icing severity and forecast icing potential. The first is that we are comparing the potential for an icing event to occur with its predicted intensity. The second challenge is that the new severity forecasts are on a 0.25º grid, compared with 1.25º for icing potential.

We present results both under the assumption that moderate icing potential is the same as moderate icing severity, and as an independent comparison with a new satellite-derived icing severity product. We also test the sensitivity to the choice of verification grid by re-gridding to both 0.25º and 1.25º.

The results show that WAFC icing severity is over-predicted when compared with satellite-derived severity, especially over the tropics. However, icing events are likely to be too infrequent in the observations, and so the magnitude of the over-prediction is over-estimated. All forecasts show regional skill at predicting icing severity and the results are not sensitive to the choice of verification grid. However, the performance of the higher resolution icing severity forecast is likely to influenced by the double penalty problem.
Study of strong tornadoes in Central Europe: Various aspects of Forecasting and Nowcasting
Authors: Wapler Kathrin , Beyer Marcus
Published: June 2021

Tornados pose a significant threat to life, property, and economy. Thus, an analysis of tornadoes is of high relevance. An understanding of historical events, e.g. regarding the characteristics of tornadic storms compared to multi-year storm statistics, may help to improve the situational awareness of future tornado events.

In this study, tornadic storms with a tornado intensity of F2 or stronger on the Fujita scale that occurred in recent years (2016 – 2020) in Germany were analyzed in detail. The four F3 tornadoes (Bützow, Affing, Bonndorf and Roetgen) and sixteen F2 tornadoes, which developed on 17 different days occurred in various parts of Germany. Most of the analysed tornadoes occurred from May to early September. The other three cases are typical winter cases that differ significantly from the summer cases in some aspects that are discussed where applicable. One case which happened in the third decade of September has characteristics form both, summer and winter, and is thus the only hybrid case. The great majority of all cases occurred during the second half of the day, most of them between 12 and 18 UTC. The most active hour was 16 to 17 UTC.

Regarding forecasting, similarities and differences of the prevailing synoptic and mesoscale conditions are assessed in addition to the convective environment of the events. Furthermore, the type of convection is analysed. The goal is to anticipate typical characteristics that enhance the threat of a potentially dangerous tornado situation. Using these findings may then help to strengthen the awareness of the forecaster. Two situations in mid- and upper-level flow are typical for the occurrence of strong tornadoes. On the majority of the analysed tornadic days, the event happened on the forward flank of a long wave trough that was slowly propagating eastward. The other typical situation is a vivid short wave trough passing rather fast over the area of interest from West to East.

Regarding nowcasting, a multi-source approach was applied to best analyse the events. For this purpose, radar reflectivity and rotation data were combined with lightning detection in order to analyse the tornadic storms with respect to storm mode and storm evolution as well as lightning and rotation characteristics. In many cases, radar radial wind data showed a persistent rotation track. The automatically detected mesocyclones had a vertical depth between 2.5 and 11 km at the time of the tornado, the diameter was above 8 km. The base of the rotation was low compared to multi-year statistics of all mesocyclonic storms. The lighting activity of the tornadic storms was high. In many cases, a lightning jump occurred between 5 and 120 minutes before the event.
Water resources management in St. Petersburg in the context of climate change
Authors: Fasolko Dinara , Akentyeva Elena , Klyueva Marina , Pikaleva Anastasia , Shkolnik Igor
Published: June 2021

In 2019 within the framework of the European Program for Cross-Border Cooperation between South-East Finland and Russia was launched a project «Towards higher adaptive capacity in urban water management» (RAINMAN). This project is being implemented by scientific organizations and government agency of St. Petersburg and South-East Finland.

The key element of the climate policy of St. Petersburg is the development of adaptation measures for the sectors of the municipal economy. Priority adaptation measures are focused on reducing and preventing the most probable climate risks, such as flooding of the urban territories.

During the implementation of the project, tailored climate indices for water management were identified and their changes were assessed. The impact of climate change on the state and functioning of water disposal system was also analyzed.

In the period from 1881 to 2019 the mean annual air temperature in St. Petersburg went up by about 2 °C, with maximum in spring - about 3 °C. The annual precipitation sums increased by 16% (in warm period – by 20%, in cold period – by 12%).  The rise of maximum one-day rainfall was up to 98 mm (the previous one was 75 mm). The features of snow cover, wind regime, etc. were analyzed as well.

Future climate changes over north-western Russia including St. Petersburg area were projected by a large ensemble of regional climate simulations of the Voeikov Main Geophysical Observatory. Thirty experiments differing in the atmospheric and land surface initial conditions have been conducted spanning three decadal periods 1990–1999 (baseline), 2050–2059 and 2090–2099 using IPCC RCP8.5 scenario. The air temperature is expected to increase in the region by 2-4 ºС by the middle of the 21st century. An increase in precipitation is also expected entire the region in all seasons of the year.

In 2019, the Action plan for the implementation of the strategy of social and economic development of St. Petersburg for the period until 2035 was approved, which includes climate change adaptation measures. Updating regulatory documents for water management is one of the main possible directions for adaptation of the water sector of St. Petersburg. The presented assessments of main climate indices changes confirm the need to update the regulatory documentation. As a result, a model of the modernized sewage system of St. Petersburg will be created, the risks of flooding the urban territory and financial costs for damages will decrease, and the environmental situation will improve.