bluuebunny/crossref_metadata_2025 huggingface dataset:
A mensuração do Capital Intelectual: análise do modelo adequado à Práxis Organizacional
Authors: Feil Alexandre André
Published: May 2020

O conhecimento, na atualidade, é um elemento essencial que contribui na geração de vantagens competitivas e riquezas às organizações. Neste contexto, este estudo objetiva identificar e mensurar o capital intelectual pelo método adequado à organização de construção civil e atividades afins. A metodologia centra-se na abordagem quali-quantitativa e descritiva, com o auxílio da pesquisa documental e da entrevista não estruturada. A unidade de análise compreende uma indústria e comercio de materiais, argamassa para construção e rodovias asfálticas, denominada de Alfa. Os modelos de capital intelectual utilizados neste estudo, em função das limitações de informações disponíveis na organização, compreendem os métodos de capitalização de mercado (Market-to-book Ratio, Market Value Added e Tobin’s q) e os métodos scorecards (intellectus, Skandia Navigator e Stewart). Os resultados revelam que os métodos de capitalização de mercado são de avaliação rápida e simples, em função disto são inexatos e ineficientes; e os métodos scorecards são complexos e lentos para a mensuração e avaliação do capital intelectual, porém abrangem maior amplitude e profundidade. Neste sentido, conclui-se que o método mais adequado para a mensuração e análise do capital intelectual na Alfa é o Skandia Navigator, pois abrange um conjunto de indicadores e seu resultado apresenta valores absolutos e de razão que auxiliam no processo de gestão interno e externo.
GALVANI, VOLTA E OS EXPERIMENTOS CRUCIAIS: A EMBLEMÁTICA CONTROVÉRSIA DA ELETRICIDADE ANIMAL
Authors: Raicik Anabel Cardoso
Published: May 2020

A controvérsia entre Galvani e Volta, acerca da eletricidade animal, pode ser considerada uma das maiores da história da ciência. Ao longo dessa querela, os pressupostos teóricos de cada um dialogaram proficuamente com inúmeros experimentos desenvolvidos. Os experimentos, carregados de teoria, fizeram do sapo o melhor amigo ou inimigo, por tanto ‘sofrer’) de ambos; satisfazia os desejos de cada um, voltando-se tanto à eletrobiologia quanto a eletrofísica.  Resgatando sucintamente este embate, esse artigo discute alguns experimentos desenvolvidos por esses dois estudiosos, que ilustram a concepção steinleana de experimentação exploratória, ressalta alguns aspectos relativos à Natureza da Ciência nesse percurso, discorre em que sentido alguns experimentos podem, em princípio, serem considerados cruciais na controvérsia e evidencia implicações para o ensino de ciências.
UNA POSIBLE DEFINICIÓN DE METACOGNICIÓN PARA LA ENSEÑANZA DE LAS CIENCIAS
Authors: Pérez Gaston , González Galli Leonardo Martin
Published: May 2020

Existe consenso en la comunidad académica en que la metacognición influye en los aprendizajes de los sujetos, así como en su constitución como ciudadanos críticos. No obstante, al ser diversas las áreas que investigan este fenómeno es difícil tener una caracterización consensuada del mismo. El objetivo de este artículo es presentar una posible definición de este constructo que sea útil para la construcción de actividades en ciencias. Desde las investigaciones en enseñanza de las ciencias, y en particular de la biología, presentaremos ejemplos concretos relacionados con la lectura de textos científicos, la resolución de problemas y los obstáculos epistemológicos.
PODCASTS E O INTERESSE PELAS CIÊNCIAS
Authors: Martin George Francisco Santiago , Vilas Boas Anderson Camatari , Arruda Sergio De Mello , Passos Marinez Meneghello
Published: May 2020

Este artigo apresenta os resultados de uma pesquisa a respeito do interesse pelas ciências e a contribuição de podcasts de divulgação científica para o desenvolvimento desse interesse. As pessoas que participaram como depoentes para a realização desta investigação eram consumidores de alguns podcasts e seus relatos foram obtidos por meio da resposta a questionários online com questões de múltiplas escolhas e dissertativas, divulgadas nos podcasts e em seus websites e nas redes sociais, pelos pesquisadores. Os dados foram analisados segundo os procedimentos da Análise Textual Discursiva, fazendo uso do Modelo de Quatro Fases de Desenvolvimento do Interesse (MDI) adaptado e assumido por categorias a priori. Após o movimento analítico foi possível identificar nas declarações dos respondentes: níveis diferentes de interesse pelas ciências; a relação entre os podcasts de divulgação científica e o desenvolvimento do interesse pelas ciências; algumas características que tornam estes podcasts atraentes para o público. As análises ainda mostraram que, para muitos dos casos em que o interesse pelas ciências era evidente, os podcasts tiveram papel importante na intensificação do interesse e em decisões tomadas por esses sujeitos em relação à profissão a ser escolhida e à formação relacionada aos conteúdos dos podcasts.
MicroRNA-21/PDCD4 proapoptotic signaling from circulating CD34+ cells to vascular endothelial cells: a potential contributor to adverse cardiovascular outcomes in patients with critical limb ischemia
Authors: Spinetti Gaia , Sangalli Elena , Tagliabue Elena , Maselli Davide , Colpani Ornella , Ferland-McCollough David , Carnelli Franco , Orlando Patrizia , Paccagnella Agostino , Furlan Anna , Stefani Piero Maria , Sambado Luisa , Sambataro Maria , Madeddu Paolo
Published: May 2020

Objective.
In patients with type 2 diabetes (T2D) and critical limb ischemia (CLI), migration
of circulating CD34+ cells predicted cardiovascular mortality at
18 months post-revascularization. This study aimed to provide long-term
validation and mechanistic understanding of the biomarker.

Research Design and Methods. The association between CD34+ cell
migration and cardiovascular mortality was reassessed at 6 years post-revascularization.
In a new series of T2D-CLI and control subjects, immuno-sorted bone marrow (BM)-CD34+ cells
were profiled for microRNA expression and assessed for apoptosis and
angiogenesis activity. The differentially regulated microRNA-21, and its pro-apoptotic
target PDCD4, were titrated to verify their contribution in transferring
damaging signals from CD34+ cells to endothelial cells.

Results. Multivariable regression analysis confirmed CD34+ cell
migration forecasts long-term cardiovascular mortality. CD34+ cells
from T2D-CLI patients were more apoptotic and less proangiogenic than controls and
featured microRNA-21 downregulation, modulation of several long non-coding RNAs
acting as microRNA-21 sponges, and upregulation of the microRNA-21 proapoptotic
target PDCD4. Silencing miR-21 in control CD34+ cells
phenocopied the T2D-CLI cell behavior. In coculture, T2D-CLI CD34+
cells imprinted naïve endothelial cells, increasing apoptosis, reducing network
formation, and modulating the TUG1 sponge/microRNA-21/PDCD4 axis. Silencing
PDCD4 or scavenging ROS protected endothelial cells from the negative influence
of T2D-CLI CD34+ cells

Conclusions. Migration of CD34+ cells predicts long-term
cardiovascular mortality in T2D-CLI patients. An altered paracrine signalling conveys
anti-angiogenic and pro-apoptotic features from CD34+ cells to the
endothelium. This damaging interaction may increase the risk for life-threatening
complications.
Empirical Investigation of Small-Scale Aluminium Wool Packed Solar Air Heater Made with Waste Material
Authors: Khanları Ataollah , Tuncer Azim Doğuş , Şirin Ceylin , Afshari Faraz , Güngör Afşin
Published: May 2020

Waste production is an important problem for the developing world and globalization. The waste materials can be reused through recycling process and its environmental effects can be minimized. Utilizing renewable energy sources at the maximum level is also an important issue for a sustainable development in future as well as waste management. In this study, small-scale solar air heating systems were produced from waste materials to analyze the usability of waste material in renewable energy systems. Scrap metal elbows were used in the production of heaters. The first solar heater is hollow (SH) and the second one was modified by filling it with aluminum wool (SHAW). Both heaters were tested simultaneously at different flow rates (0.014, 0.010 and 0.006 kg/s). According to the experimental results, the thermal efficiency values for SH and SHAW were found in the range of 33.63-42.90% and 42.69-56.98%, respectively. In addition, it was observed that a low cost modification such as using aluminum wool can significantly increase thermal performance of the solar heating system.
Artigo Retirado por Indício de Plágio
Authors: Nascimento Waddle Almeida
Published: May 2020

Resumo: A Educação Ambiental ainda não está presente efetivamente nos espaços escolares e os projetos que surgem, na maioria das vezes, são pontuais e descontínuos. Este trabalho faz análise da transformação que uma de ação em Educação Ambiental pôde causar na Escola de Ensino Técnico do Estado do Pará, localizada no Município de Vigia de Nazaré/PA, com uma turma do 3º ano do ensino médio integrado ao ensino técnico em meio ambiente, no período de maio a junho de 2019, como uma tentativa de internalizar a formação da criticidade e a transformação da comunidade escolar em relação aos problemas ambientais, através da reformulação e construção, conjunta e visível, de um espaço verde na escola. Pode-se verificar que a prática pedagógica levou os alunos para além da sala de aula, transformando visivelmente o ambiente escolar, e contribuindo na formação através da reflexão-ação-reflexão.
Palavras-chave: Educação ambiental; Espaço Escolar; Pertencimento; Ressignificação.
QUIZ MOLECULAR: APLICATIVO LÚDICO DIDÁTICO PARA O ENSINO DE QUÍMICA ORGÂNICA
Authors: Santos Silva Ezequiel , Batista Loja Luiz Fernando , Teixeira Pires Diego Arantes
Published: May 2020

Atualmente, existe uma preocupação em relação ao processo de ensino-aprendizagem de alguns conceitos científicos, como os conceitos iniciais de Química Orgânica, vistos no terceiro ano do Ensino Médio. Uma das alternativas para solucionar esse problema tem sido construir e apontar materiais didáticos para incrementar a metodologia das aulas ministradas pelos professores de Ciências. Alguns desses materiais, que podem contribuir com o êxito no processo de ensino-aprendizagem são os softwares lúdicos educacionais. Neste trabalho, apresentamos um aplicativo didático que foi desenvolvido, denominado Quiz Molecular, para dispositivos móveis, abordando o conteúdo de funções orgânicas. Além disso, relatou-se a aplicação, avaliação e validação do jogo com alunos de uma escola estadual de Ensino Médio e licenciandos em Química de uma instituição federal de ensino, utilizando-se questionários com perguntas objetivas e discursivas, em uma pesquisa qualitativa. Notou-se que o jogo proposto agradou aos alunos de Ensino Médio e aos futuros professores, demonstrando que pode ser uma boa alternativa para dinamizar as aulas de Química Orgânica.
LICENCIATURAS EM CIÊNCIAS DA NATUREZA DO INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DE RONDÔNIA (IFRO): O SABER O QUE ENSINAR
Authors: Rohers Penha Maranei , Pontin Darsie Marta Maria
Published: May 2020

Este artigo resulta de uma pesquisa realizada nas licenciaturas em Ciências da Natureza do Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, por meio de análise documental e questionário misto, e integrou parte de uma pesquisa de doutorado, que objetivou compreender os processos de implantação de licenciaturas no IFRO e a formação inicial de professores das referidas licenciaturas. A análise de quatro Projetos Pedagógicos de Cursos, vigentes entre 2010/1 e 2015/2, evidenciou significativa diferença quantitativa de oferta de disciplinas relacionada ao saber o que ensinar e ausência de disciplinas vinculadas a saberes regionais. A pesquisa também demonstrou que 72,7% dos Docentes Formadores afirmaram que as licenciaturas em Ciências Biológicas, Física e Química garantem a aprendizagem do saber o que ensinar; contudo, apontaram a necessidade de mais discussões e ações coletivas. Todos os Professores Egressos declararam que o saber o que ensinar foi assegurado durante seus processos de formação inicial.
O ENREDO DAS AULAS EXPERIMENTAIS NO ENSINO FUNDAMENTAL: CONCEPÇÕES DE PROFESSORES SOBRE ATIVIDADES PRÁTICAS NO ENSINO DE CIÊNCIAS
Authors: Oliveira da Silva Maria Eliane , Oliveira Marques Paulo Roberto Brasil de , Vieira Carvalho Oliveira Marques Clara Virgínia
Published: May 2020

A literatura especializada vem apontando mudanças no ensino de ciências e exprime a experimentação como uma alternativa para o processo de construção de saberes científicos por meio da reflexão e investigação. No contexto nacional, o cenário escolar mantém práticas pedagógicas ainda resistentes às mudanças relacionadas a alfabetização científica mediadas por práticas experimentais. Assim, a presente pesquisa objetivou investigar a concepção de professores de ciências sobre de implementação de práticas experimentais em escolas da rede pública de Ensino Fundamental. Com base nos aspectos metodológicos de uma abordagem qualitativa, os dados foram tratados por análise de conteúdo e organizados na perspectiva de uma rede sistêmica. Os resultados obtidos revelaram que os professores de ciências compreendem a importância da utilização da experimentação para construção de saberes científicos, porém, os planejamentos escolares não contemplam a inserção efetiva dessas atividades, tendo como principais fatores a falta de recursos e espaço próprio destinado à prática experimental.
ESTADO DA ARTE: UTILIZAÇÃO DO MÉTODO INVESTIGATIVO NA DISCIPLINA DE FÍSICA NO PERÍODO DE 2013-2018
Authors: Pereira da Silva Jéferson , Andrade de Toledo Thiago , Carbo Leandro
Published: May 2020

Atualmente, existe considerável aumento de pesquisas do cunho metodológico “estado do conhecimento” ou “estado da arte”, a fim de pesquisar e divulgar como tem se dado os estudos recentes. Assim, diversos são os trabalhos que permeiam as estratégias para o aprimoramento do ensino e aprendizagem de Ciências (física, química, matemática e biologia). O presente artigo visou averiguar e descrever como tem se dado a utilização do método investigativo, no ensino de física e os temas já abordados, haja vista que se trata de um método primordial para a promoção da alfabetização científica. Mediado pela busca com três descritores, selecionando trabalhos publicados completos, dispondo de filtros na base de dados da Google Acadêmico e do SciELO, com recorte temporal dos últimos cinco anos (2013-1018). Desta forma, foram analisados 10 artigos, 02 dissertações e 01 tese que retrata o ensino investigativo. Logo, evidenciando baixo quantitativo de pesquisas que permeiam esta área do conhecimento.
CONTRIBUIÇÕES DE JOHN DEWEY NA FORMAÇÃO DE PROFESSORES DE CIÊNCIAS DA NATUREZA
Authors: Elisângela Jappe Goi Mara
Published: May 2020

Este artigo traz os pressupostos teóricos de John Dewey que foram trabalhados em um curso de formação continuada de professores da área de Ciências da Natureza em uma universidade pública. Esses pressupostos podem servir para balizar propostas de ensino que contemplem o conceito de experiência, a escola e seu compromisso com a construção de novos saberes a partir da experiência do indivíduo, da experiência relacionada com os conceitos científicos, da experiência na escola progressista e das críticas relacionadas ao campo teórico Deweyano. Assim, na concepção deste autor a experiência se perpetua naquelas que a sucedem, logo, uma educação baseada na experiência do indivíduo será frutífera e criativa nas experiências subsequentes. Desse modo, o relevante na educação contemporânea é desenvolver a experiência de vida de cada indivíduo, sendo a escola o lócus para que isso se desenvolva, priorizando a individualidade de cada um.
ENSINO DE QUÍMICA NO CONTEXTO DA EDUCAÇÃO ESPECIAL: UMA ANÁLISE DE ARTIGOS PUBLICADOS NA REVISTA QUÍMICA NOVA NA ESCOLA NO PERÍODO DE 1995 A 2016
Authors: Jully Chagas da Silva Jullyx , Maria Dutra Mara
Published: May 2020

Esse estudo tem como objetivo mapear os artigos publicados na revista Química Nova na Escola (QNEsc), analisando as contribuições do periódico para o ensino de química no contexto da educação especial, no período de 1995 a 2016. A escolha da QNEsc se deu pela relevância das publicações que envolvem a educação química. Sob o ponto de vista metodológico, essa pesquisa básica tem caráter descritivo e exploratório, caracterizando-se em um levantamento do tipo estado da arte, de abordagem mista. Constatou-se que apenas 11 das publicações do periódico tratam de assuntos relacionados à educação especial. A exploração do material permitiu categorizar quanto ao foco temático: formação docente, ensino e aprendizagem, materiais didáticos e revisão de literatura. Quanto ao tipo de necessidades educacionais especiais abordados foram categorizadas em: deficiência visual, deficiência auditiva e geral. Os resultados apontam notáveis contribuições para a alfabetização química de estudantes com necessidades educacionais especiais, entre os quais destacam o aprimoramento da formação docente, difusão de pesquisas, elaboração de materiais e estratégias didáticas que favorecem a construção do conhecimento em um processo inclusivo.
ÍNDICES DE DESEMPENHO: COMPARAÇÃO DAS ESCOLAS MILITARIZADAS COM AS TRADICIONAIS DE GUARANTÃ DO NORTE/MT
Authors: Krishna Rodrigues de Rosa Krishna x , Teles dos Reis Ana Paula , Rodrigues da Silva Antonia Eva , Filippin dos Passos Alessandra Maria
Published: May 2020

A escola deve ser referência de um local seguro e propiciador de conhecimento, em que o aluno possa conhecer seus próximos e a sociedade em que vive. Neste sentido, objetivou-se analisar, neste trabalho, um projeto denominado “Escola Segura”, desenvolvido no município de Guarantã do Norte – MT, com o intuito de comparar escolas que implementaram o projeto com outras que não o fizeram. Para tal, foram avaliadas duas escolas militarizadas e duas tradicionais, nos níveis de ensino fundamental e médio, com base no desempenho escolar referente aos anos de 2017, 2018 e 2019/1. Constatou-se diferença significativa apenas nas escolas de ensino médio, contudo, houve um ligeiro progresso nas notas de português e de matemática na escola B, ao passo que o índice do IDEB 2016 da escola A foi maior. Espera-se que o resultado das escolas militarizas, no próximo IDEB e no próximo ENEM, melhorem, já que as notas nas disciplinas avaliadas tiveram o incremento de um ponto após a implementação do projeto.
A AVALIAÇÃO E O ERRO NO PROCESSO DE ENSINO-APRENDIZAGEM NA FORMAÇÃO INICIAL E CONTINUADA DE PROFESSORES DE MATEMÁTICA
Authors: Orlando Sales Pessim Marcelo , Pereira Leite Eliana Alves
Published: May 2020

Teve-se por objetivo analisar como a avaliação e o erro no processo de ensino-aprendizagem têm sido abordados na formação inicial e continuada de professores de matemática. Metodologicamente a pesquisa é de abordagem qualitativa e de campo. Participaram 5 professores de matemática que atuam nos anos finais do Ensino Fundamental e Médio de escolas estaduais de Ouro Preto do Oeste/RO. Para tanto, utilizou-se questionário, entrevista semiestruturada e procedeu-se a análise documental de Projetos Pedagógicos do Curso (PPCs) de Licenciatura em Matemática da Universidade Federal de Rondônia (UNIR), Campus de Ji-Paraná. Verificou-se que somente 2 professores participaram de algum tipo de estudo sobre avaliação e erro no processo de ensino-aprendizagem na formação inicial, e 4 professores tiveram acesso à discussão da referida temática na formação continuada. Nos PPCs, dos ciclos de 2000-2005 e 2006-2016, não foram encontrados elementos que se referem ao erro, no entanto, no segundo PPC, identificou-se em um componente curricular, mais especificamente em uma unidade, a discussão sobre a avaliação como um dos conteúdos programáticos. Espera-se que os resultados propiciem reflexões sobre a importância de ser oportunizado ao professor de matemática conhecimento acerca da avaliação na formação inicial e continuada.
PENERAPAN METODE CONTRAST STRETCHING, HISTOGRAM EQUALIZATION DAN ADAPTIVE HISTOGRAM EQUALIZATION UNTUK MENINGKATKAN KUALITAS CITRA MEDIS MRI
Authors: Wijaya Kusuma I Wayan Angga , Kusumadewi Afriliana
Published: May 2020

Citra medis adalah suatu pola atau gambar dua dimensi bagian dalam tubuh manusia yang digunakan oleh ahli kesehatan untuk mendeteksi dan menganalisa penyakit pasien. Pada bidang radiologi citra yang sering digunakan saat ini adalah  citra Magnetic resonance Imaging (MRI). Keunggulan citra MRI adalah kemampuan menampilkan detail anatomi secara jelas dalam berbagai potongan (multiplanar) tanpa mengubah posisi pasien.  Citra MRI ini akan digunakan oleh dokter ataupun peneliti untuk melakukan analisis ada tidaknya suatu tumor, kanker, atau kelainan pada pasien. Penelitian ini mengusulkan metode Contrast Stretching, Histogram Equalization dan Adaptive Histogram Equalization untuk meningkatkan kualitas citra medis. Batasan masalah penelitian ini adalah citra medis MRI yang digunakan sebagai obyek penelitian adalah citra medis MRI Otak baik yang normal atau yang mengalami lesi (gangguan). Dari hasil kualitas citra dan analisa kuantitatif menunjukkan bahwa metode contrast stretching menghasilkan hasil kualitas citra MRI jauh lebih baik dibandingkan dengan metosde histogram equalization, dan adaptive histogram equalization. Nilai MSE yang paling rendah adalah pada metode contrast stretching yaitu 0,00346. Sedangkan nilai MSE yang paling besar dihasilkan oleh metode histogram equalization. Kualitas citra dengan metode contrast stretching menghasilkan nilai PSNR yang paling besar yaitu 22,0677. Ini menandakan bahwa kualitas citra dari metode contrast stretching jauh lebih baik dibandingkan metode histogram equalization, dan adaptive histogram equalization.
CLUSTERING K-MEANS PADA DATA EKSPOR (STUDI KASUS: PT. GAIKINDO)
Authors: Afifi Wakhid , Nastiti Dhiya'an Ramadhanty , Aini Qurrotul
Published: May 2020

PT Gaikindo adalah sebuah perusahaan otomotif dan produsen kendaraan bermotor yang mengirimkan produknya hingga ke luar negeri. Berdasarkan data ekspor mobil pada  PT Gaikindo, terdapat banyak mobil dengan jumlah ekspor yang bervariasi. Oleh karena itu, PT. Gaikindo membutuhkan data mobil mana yang terlaris dan yang tidak laris untuk mengatur volume pengiriman mobil ke luar negeri. Penelitian ini menggunakan metode clustering dengan algoritma k-means. Metode ini mengelompokkan data dengan cara memasukkan data brand dan tipe mobil yang dikirim pada setiap negara. Hasil penelitian ini menunjukkan terdapat 3 cluster yang terbentuk dengan kategori sangat diminati, cukup diminati, dan sedikit diminati.
MONITORING DAN PENGHENTIAN CAIRAN INFUS MENGGUNAKAN TIMBANGAN INFUS DIGITAL DENGAN MEMANFAATKAN WEB SERVER
Authors: Yayer Kristina Natalia Tunga , Weliamto Widya Andyardja , Sitepu Rasional , Pranjoto Hartono
Published: May 2020

Perawat merupakan petugas kesehatan yang perannya tak kalah penting dengan dokter. Tugas perawat antara lain memberikan obat dan memeriksa kondisi pasien sesuai jadwal serta mengganti kantong infus. Akan tetapi pada malam hari perawat yang bertugas lebih sedikit dibandingkan siang hari. Hal tersebut berdampak pada kemerataan pelayanan dan dapat menimbulkan resiko bagi pasien yang cairan infusnya habis pada malam hari. Resiko dari keterlambatan penggantian kantong infus adalah kemungkinan darah yang tertarik dan mengalir kedalam selang infus karena terjadinya perbedaan tekanan udara antara pembuluh vena dan kantong infus. Untuk meminimalkan resiko-resiko yang dapat terjadi, penggantian kantong infus harus dilakukan dengan tepat. Alat yang dibuat dapat mengukur volume infus dengan menimbang berat kantong infus. Alat diberi pengaman agar dapat menghentikan aliran cairan infus yang mengalir ke pembuluh vena ketika cairan infus akan habis. Data dari banyak cairan infus yang tersisa dan ruangan pasien berada dikirimkan ke web server yang dapat diakses pada nurse station sehingga akan lebih mudah untuk dipantau perawat. Hasil dari penelitian ini berupa pengukuran volume cairan infus dengan rata-rata error dibawah 2%. Pengiriman data berupa volume dan foto kantong infus ke server dilakukan tanpa kesalahan pengalamatan saat banyak alat mengirimkan data secara bersamaan. Membuat tampilan web berupa indikator warna agar perawat dapat segera mengetahui saat cairan infus hampir habis, sehingga tidak terjadi keterlambatan dalam penggantian kantong infus
CONGESTION CONTROL PADA JARINGAN KOMPUTER BERBASIS MULTI PROTOCOL LABEL SWITCHING (MPLS)
Authors: Nurhaida Ida , Ichsan Ichsan
Published: May 2020

Penelitian ini dilakukan untuk menguji metode congestion control dengan penerapan QoS-Policies pada jaringan Multi Protocol Label Switching (MPLS). Parameter QoS (Quality of Services) yang diuji dalam penelitian ini berupa delay, troughput, jitter dan packet loss. Nilai-nilai yang didapatkan dari paramater tersebut kemudian dibandingkan dengan standar dari Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) dengan tujuan untuk mengetahui kualitas layanan pengiriman data pada jaringan MPLS ketika terjadi network congestion di lintasanya. Setelah melakukan proses perancangan, pengujian dan analisa, hasil yang didapat menunjukkan peningkatan nilai-nilai parameter QoS. Nilai QoS untuk parameter delay mengalami penurunan sebesar 48.3%, nilai troughput mengalami peningkatan sebesar 87.44%, nilai jitter mengalami penurunan nilai sebesar 54.04% dan nilai packet loss mengalami penurunan sebesar 99.9%.
RANCANG BANGUN ALAT PENGHITUNG BENIH IKAN BANDENG GELONDONGAN BERBASIS MIKROKONTROLER ATMEGA 328
Authors: Afiyat Nur , Rifqi Muhammad
Published: May 2020

Suatu masalah dalam kegiatan jual beli benih ikan bandeng adalah penghitungan jumlah benih ikan bandeng masih menggunakan cara manual. Proses penghitungan bandeng secara manual ini memiliki tingkat akurasi yang berbeda-beda sesuai dengan tingkat keahlian operator yang melakukan penghitungan. Selain itu juga penggunaan sumber daya manusia dalam proses penghitungan benih ikan bandeng secara manual memerlukan biaya yang tinggi. Alat penghitung benih ikan bandeng diharapkan bisa mengatasi atau meringankan masalah ini. Rancang bangun alat penghitung benih ikan bandeng gelondongan berbasis mikrokontroler atmega 328 ini terdiri dari 3 sistem yaitu: Sistem mekanik yang terdiri dari akuarium penghitung, pipa penyalur, akuarium penampung dan pompa air. Sistem elektrik terdiri dari mikrokontroler, sensor photodioda dan liquid crystal display (LCD). Dan software yang berfungsi untuk mengendalikan alat penghitung benih ikan bandeng gelondongan. Berdasarkan pengujian yang telah dilakukan alat ini mampu menghitung benih ikan bandeng gelondongan dengan baik. Pada pengujian dengan tingkat kekeruhan air 3,93 NTU nilai akurasi rata-rata sebesar 95,10%, kemudian pada pengujian dengan tingkat kekeruhan air 9,60 NTU nilai akurasi rata-rata sebesar 94,80%, sedangkan pada pengujian dengan tingkat kekeruhan air 15,39 NTU nilai akurasi rata-rata sebesar 94,16% serta pada pengujian dengan tingkat kekeruhan air 43,55 NTU alat tidak dapat berfungsi karena kondisi air terlalu keruh.
RIP VS. OSPF ROUTING PROTOCOLS: WHICH ONE IS THE BEST FOR A REAL-TIME COMPUTER NETWORK?
Authors: Majid Nuur Wachid Abdul , Fuada Syifaul
Published: May 2020

The development of modern computer networks for internet access makes routing protocols needed, and it has an essential role in a real-time system. Therefore, the best and most effective routes can be reached. In this short article, we discuss the comparison of two popular routing protocols, i.e., Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) using two network simulators, i.e., Graphical Network Simulator-3 (GNS3) and Enterprise Network Simulation Platform (ENSP). Both of OSPF and RIP routing protocols can be used in the same topology and have differences in the connection time required to connect communication between routers. Thru GNS3 and ENSP, we obtained the comparison result at ideal condition; we found that the OSPF routing protocol (83 ms) has a faster time or efficient in connection than RIP (177 ms). Besides, we found that compared to GNS3 network simulators (329 ms), the ENSP has a relatively more rapid average time (94 ms). This work suggests that a Huawei router with ENSP is faster than a Cisco router which is used by GNS3. Hopefully, this information can be refereed by internet network administrators to build real-time computer networks.
DESAIN DAN IMPLEMENTASI INVERTER 3 FASA DENGAN PENAMBAHAN PUSH-PULL CONVERTER
Authors: Sholihah Fifi Hesty , Hadianto Nur Rohmat , Mustaghfiri Mustaghfiri
Published: May 2020

Energi surya merupakan jenis renewable energy yang mempunyai potensi besar di indonesia. Energi surya dapat dikonversi menjadi energi listrik menggunakan PV. Berhubung dengan meningkatnya kebutuhan energi di Indonesia serta diberlakukan feed in tariff oleh pemerintah, maka akan mempermudah untuk jual beli listrik melalui sistem on-grid. Pada penelitian ini membahas desain dan implementasi inverter 3 fasa yang terkoneksi grid. Rangkaian inverter 3 fasa ini menggunakan sinyal sinusoidal pulse width modulation (SPWM) yang dibangkitkan oleh Arduino. Kemudian sinyal SPWM digunakan untuk masukan rangkaian driver IR2113. Pada perancangan ini menambahkan push-pull converter sebagai suplai inverter 3 fasa. Push-pull converter menggunakan sinyal PWM dari IC SG3525. Duty cycle yang dihasilkan dapat diatur sesuai dengan tegangan yang ingin dihasilkan. Rangkaian ini menggunakan high frequency transformer sebagai step up tegangan. Pada variasi tegangan input 36 volt sampai 66 volt menghasilkan tegangan yang stabil pada 440 volt. Pada pengujian sistem menggunakan tegangan grid 175 volt. Sehingga menghasilkan tegangan line-line 311 Vrms dan tegangan line-neutral 179,5 Vrms.
SIMULASI DATABASE BEBAN KERJA DOSEN PERGURUAN TINGGI MENGGUNAKAN DIMENSIONAL MODELING
Authors: Anisah Anisah , Yurindra Yurindra , Japriadi Yohanes Setiawan , Andrika Yuyi , Pradana Harizki Arie
Published: May 2020

Data warehouse sudah banyak digunakan untuk membantu eksekutif dalam pengambilan sebuah keputusan, diantaranya bidang kesehatan, bidang perhotelan, dan tidak ketinggalan di bidang pendidikan. Akan tetapi, belum banyak yang menggunakan data warehouse khususnya untuk keperluan Beban Kerja Dosen (BKD). Penelitian sebelumnya ada yang melakukan penelitian mengenai BKD, tetapi sebatas perancangan untuk  database operasional. Beban kerja dosen haruslah dilakukan evaluasi agar dosen yang ada di perguruan tinggi merupakan dosen yang profesional yang senantiasa menjunjung tinggi pelaksanaan Tri Dharma Perguruan Tinggi. Masalah yang dihadapi saat ini, untuk mendukung proses evaluasi beban kerja dosen dan pengambilan keputusan yang tepat oleh para pemangku kepentingan perguruan tinggi tersebut, belum adanya suatu database beban kerja dosen yang terintegrasi dan terpusat yang bisa diakses oleh pemangku kepentingan perguruan tinggi untuk memperoleh informasi stategis mengenai beban kerja dosen suatu perguruan tinggi secara lengkap, cepat dan akurat. Adapun tujuan dari penelitian ini adalah merancang data warehouse yang dapat membantu para pemangku kepentingan perguruan tinggi dalam memperoleh informasi stategis mengenai beban kerja dosen tersebut. Metode penelitian yang digunakan pada tahap analisis dan perancangan data warehouse menggunakan Four Step Methodology kimball. Database yang dihasilkan akan dilakukan simulasi dengan menggunakan interface PhpMyadmin untuk kemudian dilakukan evaluasi mengenai rancangan database yang dihasilkan untuk mengetahui sampai sejauh mana kemampuan database data warehouse beban kerja dosen ini bisa menghasilkan informasi strategis beban kerja dosen yang dibutuhkan oleh perguruan tinggi.
SISTEM PEMANTAUAN DAN PENGENDALIAN RUMAH JAMUR DENGAN METODE FUZZY SECARA WIRELESS
Authors: Ubaidillah Firdaus Iman , Istiadi Istiadi , Mukhsim Muhamad
Published: May 2020

Pembudidayaan jamur tiram perlu dibuat rumah atau kumbung jamur dengan kondisi yang harus selalu di pantau agar jamur dapat tumbuh dengan baik. Dalam penelitian ini dikembangkan sistem pemantauan dan pengendalian rumah jamur dengan metode fuzzy logic control yang dilakukan wireless. Sistem pengendali menggunakan sensor AM2301 untuk pembacaan nilai kelembaban udara dan suhu yang terhubung dengan Arduino UNO yang terintegrasi dengan ESP8266. Pembacaan data sensor secara periodik dan secara otomatis mengontrol kipas, lampu dan pompa serta mengirimkannya untuk dilakukan pemantauan. Metode pengendalian yang digunakan adalah fuzzy logic control tipe Mamdani. Dari penelitian ini dihasilkan sistem yang dapat mengendalikan suhu melalui kecepatan kipas dan lama waktu lampu menyala, sedangakan untuk kelembaban udara melalui lama waktu pompa menyala. Hasil perancangan dapat dikatakan sesuai dengan plant, karena output dapat bekerja sesuai dengan aturan fuzzy logic control yang diinginkan dan data dapat terkirim serta di terima untuk pemantauan.
PENERAPAN APLIKASI MOBILE LOCATION BASED SERVICE UNTUK PERSEBARAN USAHA MIKRO KECIL MENENGAH DIKABUPATEN JEPARA
Authors: Widiastuti Nur Aeni , Tamrin Teguh
Published: May 2020

Kabupaten Jepara memiliki sentra industri yang tersebar di wilayahnya. Beberapa sentra industri diantaranya sentra kerajinan gerabah dan genteng, sentra industri tenun troso, sentra industri kerajinan monel, sentra industri mebel, dan lainnya. Persebaran sentra yang ada menyebabkan sentra industri yang lokasinya strategis lebih mudah dikunjungi daripada pengrajin yang lokasinya kurang strategis. Oleh sebab itu, untuk mengatasi permasalahan tersebut dan demi keberlangsungan sentra yang ada maka peneliti mengusulkan untuk perancangan aplikasi mobile persebaran Usaha Mikro Kecil Menengah dengan pengembangan metode location based service. Aplikasi mobile ini terintegrasi dengan google Maps API sehingga pembeli dapat mengakses jarak lokasi sentra yang dicari dengan lokasi dia berada saat itu. Metode ini memiliki kelebihan diantaranya: (1)informasi lokasi yang diberikan real time, (2)sebagai penunjuk arah untuk lokasi yang dituju. Hasil penelitian ini dapat dilihat dari pengujian blackbox testing dan uji kelayakan aplikasi kepada pengguna menghasilkan persentase sebesar 77% yang dinyatakan sangat layak untuk digunakan.
Pola bakteri pada karies gigi pasien diabetes melitus

Bacteria in dental caries of diabetes mellitus patients

Authors: Endriani Rita , Rafni Elita , Siregar Fajri Marinda , Setiawan Risa Aprilia , Rasyid Fadly
Published: May 2020

Pendahuluan: Karies gigi merupakan penyakit infeksi pada jaringan keras gigi dengan prevalensi  yang tinggi pada masyarakat.  Pasien diabetes melitus (DM)  kronis dan tidak terkontrol memiliki predisposisi untuk pembentukan karies gigi. Karies gigi disebabkan berbagai faktor, diantaranya bakteri. Penelitian ini bertujuan untuk mengetahui pola bakteri pada karies gigi pasien diabetes mellitus. Metode: Penelitian dilakukan dengan consecutive sampling. Sampel penelitian diambil dari swab karies gigi pasien diabetes melitus yang berobat di Poli Penyakit Dalam RSUD Arifin Achmad Provinsi Riau. Spesimen plak gigi diisolasi, dikultur, dan diidentifikasi di laboratorium Mikrobiologi dan laboratorium Sentral FK UNRI. Data ditampilkan dalam bentuk tabel distribusi frekuensi dan dinyatakan dalam presentase. Hasil: Pola bakteri pada karies gigi pasien diabetes melitus adalah gram positif  berupa Streptococcus sp (26,3%), Staphylococcus  areus (5,3%) dan CNS (15,8%) sedangkan gram negatif berupa Escherichia coli (10,53%) dan Klebsiella sp (42,10%). Dari hasil uji PCR didapatkan Streptococccus mutans (40%). Simpulan: Pola bakteri pada plak karies gigi pasien diabetes mellitus untuk Gram positif terbanyak berupa Streptococcus sp sedangkan Gram negatif berupa Klebsiella sp.Kata kunci: Diabetes melitus, karies gigi, pola bakteri. ABSTRACTIntroduction: Dental caries is an infectious disease in hard tooth tissue that has a high prevalence in the community. Patients with chronic and uncontrolled diabetes mellitus (DM) predispose to the formation of dental caries. Various factors, including bacteria, cause dental caries. This study was aimed to determine the bacterial pattern in dental caries of DM patients. Methods: This was an experimental laboratory study. The sample was taken from dental caries swab of DM patients in the Internal Medicine Polyclinic of Arifin Achmad Regional Hospital, Riau Province. Dental plaque specimens were isolated, cultured, and identified in the Microbiology laboratory and the Central laboratory of FK UNRI. Data is presented in the form of a frequency distribution table and expressed in percentages. Results: The bacterial pattern in dental caries of DM patients were Gram-positive with details of Streptococcus sp (26.3%), Staphylococcus aureus (5.3%) and CNS (15.8%) while Gram-negative with details of Escherichia coli (10.53%) and Klebsiella sp (42.10%). From the PCR test results, 2 cases of Streptococcus mutants were identified. Conclusion: Bacterial pattern on dental caries plaque of DM patients for the most positive Gram was Streptococcus sp while Gram-negative was Klebsiella sp.Keywords: Diabetes mellitus, dental caries, bacterial pattern.
Compressive strenght of hybrid composites and nanofilled composites after post curing using light box
Authors: Rizany Tirza , Fadil Mochammad Richata , Sukartini Endang
Published: May 2020

Introduction: Nanofilled composite resins and resin hybrid composites are often used for the manufacture of composite indirect restorations because it has the addition of filler to add strength materials. This study aimed to compare the compressive strength of composites and composite hybrid nanofilled after post curing using light box. Methods: The research conducted was experimental research, with samples divided into two groups of each 10 specimens of hybrid composite resin and nanofilled. Composite cylindrical diameter of 3mm and 6mm high in post-curing for 180 seconds using a light box compressive strength test was then performed using a Lloyd Instruments LRX Plus, 1 mm/mnt speed. Results: The results were the average compressive strength of post-curing hybrid composites 234.61 MPa higher than the average post-curing composite nanofilled that was 196.60 MPa. Conclusion: the compressive strength of hybrid composite after post curing with light box is greater than the nanofilled composite.
Correlation of CD10 immunoexpression and eosinophil count in stromal tissue as predictors of prognosis of squamous cell carcinoma of the oral cavity
Authors: Patuti Deece , Yusuf Harmas Yazid , Hernowo Bethy Suryawathy
Published: May 2020

Introduction: CD10 can also facilitate the ability of tumour metastasis by its ability to invade blood vessel walls.Correlation of CD10 immunoexpression and eosinophil count in stromal tissue as predictors of prognosis of squamous cell carcinoma of the oral cavity. Methods: This study was preceded by collecting data on squamous cell carcinoma of the oral cavity in the medical record and paraffin blocks in the Anatomy Pathology section of 15 samples with enlarged regional lymph nodes and 15 samples without enlargement of regional lymph nodes. Then two preparations were made, the first preparation was stained with Hematoxylin Eosin (HE) to establish the diagnosis and determine the histopathological gradation, then count the number of eosinophils, and the other development was smeared with CD10. Outward immunohistochemistry uses the Labelled streptavidin biotin immunoperoxidase complex (LSAB) method using the Starr Trek Universal HRP Detection system. (Biocare Medical, USA). The primary antibody used was CD10 (Novocastra Laboratories Ltd, Newcastle upon Tyne, UK) with a dilution of 1:25 - 1: 50. Results: There was no statistically significant correlation between CD10 and enlargement of the lymph node regionally tested statistically using the Spearman rank test rs = -0.236, meaning that the increase in CD10 immunoexpression is inversely proportional to the enlargement of regional lymph node, but the correlation is not statistically significant The results of the analysis using the Spearman rank test found significance of p = 0.043 (significant) with a correlation strength of 37.2% Conclusion: There was no correlation between CD10 and enlargement of the lymph node regionally and correlation strength eosinophil distribution in squamous cell carcinoma of the oral cavity without regional lymph node enlargement.
Prevalence of caries on permanent first molar on cerebral palsy children aged 6-12 years old in SLB Bandung at 2010
Authors: Rizkyawati Devy , Gartika Meirina , Runkat Jakobus
Published: May 2020

Introduction: Caries is an irreversible tooth disease that is frequently encountered in the community. Caries on the permanent first molar, if not being treated, can cause tooth loss and other disadvantages. Cerebral palsy children have a motor abnormalities, that leads to high prevalence of caries. The purpose of this research was to find the prevalence of caries on the first permanent molar teeth in cerebral palsy children ages 6-12 years old. Methods: Type of research was descriptive research. Population is the cerebral palsy children in SLB Bandung, with criterion of children aged 6-12 years, has four permanent first molars, and no patches or restorations on permanent first molars. Samples from the population was taken by total sampling, a total of 26 cerebral palsy children. Results: The result shown that 22 cerebral palsy children (84.62%) tends caries on their first permanent molar teeth. The prevalence of caries on the first permanent molar tooth of the maxilla of children with cerebral palsy is 76.92 % and on the first permanent molar of the mandible is 78.84%. Conclusion: Prevalence of caries on the first permanent molar teeth in cerebral palsy children ages 6-12 years old is high.
The difference of the salivary volume before and after drinking the rosella tea (Hibiscus sabdariffa)
Authors: Islami Mutiara Indah Permata Sari , Haroen Edeh Roletta , Tjahajawati Sri
Published: May 2020

Introduction: Roselle plants (Hibiscus sabdariffa) is one of the herbs that began to be used by the community. Benefits of this plant is quite a lot for health. The portion taken for consumption is the red flower petals. oselle tea is one of the sour beverages which can affect the salivary gland secretion. The purpose of this study is to analyzed the difference of salivary volume before and after drinking roselle tea. Methods: This study has been conducted to 40 students of Faculty of Dentistry, Padjadjaran University, ranging from 18-23 years of age with good general condition. This study is quasi-experimental in vitro study using the paired test analysis with α = 0,05 of the data collected from salivary volume. Results: The result of study indicates that the average of salivary volume before drinking roselle tea is 1,90 milliliter. After drinking roselle tea, the average of salivary volume is 4,54 milliliter. The result of paired test analysis shows that t-test is 16,172 and t-table is 2,022. The value of t-test > t-table. Result of statistic shown there is significant difference of salivary volume before and after drinking roselle tea. Conclusion: There is a difference of salivary volume before and after drinking roselle tea.
Effect of ultraviolet light irradiation on the growth of Candida albicans and the transversal strength of acrylic plate
Authors: Widodo Teguh Tri , Ardan Rachman , Prijono Eddy
Published: May 2020

Introduction: Acrylic plates are the basis for several tools used in the oral cavity, including dentures and obturators. In its function, the acrylic plate is always in contact with the oral mucosa, so that good disinfection is needed without reducing the strength of the acrylic plate. Disinfection can be done by ultraviolet irradiation. This study is aimed to analyze the effect of ultraviolet light irraying on the growth of Candida albicans and the strength of transversal acrylic plate. Methods: This research is an experimental laboratory research with Replication Random Design. The disinfection success test was carried out by observing the population of the Candida albicans colony, while the acrylic plate transversal strength test was carried out on 35 acrylic heat curing plates tested according to ADA specifications. Results: Ultraviolet light can inhibit the growth of Candida albicans colonies with an optimum irradiation time of 20 minutes at a wavelength of 254nm. Meanwhile, ultraviolet irradiation on acrylic plates between 5-30 minutes shows a significant transverse strength. Conclusion: Ultraviolet light at appropriate wavelengths and times has been shown to significantly inhibit bacterial colony growth and significantly increase the transverse strength of acrylic plates.
Comparison of the head circumference measurement between Down syndrome and normal children
Authors: Yahya Nur Hanis Adibah , Indriyanti Ratna , Hartanto Rudy
Published: May 2020

Introduction: Growth and development assessment in children is measured by the head circumference measurement or as known as occipital-frontal circumference. In cases of genetic abnormalities such as Down syndrome which is caused by extra chromosome 21, give distinct features in the craniofacial profile, hence the author finds it is useful to observe the changes in their growth, mainly the head circumference. The purpose of this research is to analized comparison between head circumference measurement in children with Down syndrome in Sekolah Luar Biasa-C and normal children, Methods: Type of this research is analytical with surveying technique, using cross sectional studies on 20 children with Down syndrome and 160 normal children 6 to 13 years old. The sample subject. Based on anthropometry landmark on point Glabella to Opisthocranion, measurement is taken using a non-stretchable, flexible measuring tape. Result: There are significant differences between the head circumference of children in both group according to age and gender; except age 6 male, with the mean value of children with Down syndrome compare to normal circumference measurement were smaller 3 to 5 cm behind the normal children in this research. Conclusion: The head circumference of the children with Down syndrome over all from age 6 to 13 years old were smaller than the regular children in same age and same gender.
Completeness criteria and filling of medical records in dental clinic of Cianjur General Hospital (January - April 2011)
Authors: Rosalina Annisa , Suryanti Netty , Wardani Riana
Published: May 2020

Introduction: The medical record documentation of patient treatment Provides the which in turn, must be maintained Clearly, concisely, comprehensively and accurately. Medical record and its filling criteria must be based on the regulation of the Minister of Health of The Republic of Indonesia No. 269/Menkes/Per/III / 2008 regarding to the medical record. The research was Aimed to unveil the completeness of both criteria and filling on medical records at the General Hospital’s Dental Polyclinic of Cianjur District. Methods: Survey-based descriptive method was applied within the research. Its Data was acquired through the examination on medical records and interviews. Random sampling was conducted to run the sampling technique. 89 pieces of outpatient’s medical records were embodied as samples. Results: Based on the research results, it is discovered that 6 out of 12 criteria (50%) are not listed within the medical record. Thus, the filling on medical records of 100% is found incomplete. Conclusion: Medical records Dental Clinic Regional General Hospital Cianjur according to standards Permenkes No. 269/2008 not inlude on complete criteria according to standards Permenkes No. 269/2008.