bluuebunny/crossref_metadata_2025 huggingface dataset:
Prática como Componente Curricular: entendimentos, possibilidades e perspectivas
About math teaching practice in distance education: understanding, possibilities and prospects
Authors: Zabel Marília , Malheiros Ana Paula dos Santos
Published: May 2018

Este artigo tem como objetivo discutir os conceitos de Prática como Componente Curricular (PCC) existentes na literatura e problematiza-los, buscando fortalecer tais questões no âmbito da Educação, em particular da Educação Matemática. Para isso, contextualizamos a ideia da PCC a partir de documentos legais já instituídos referentes à formação inicial de professores e apresentamos um panorama das pesquisas e concepções de PCC presentes na literatura. Nesse movimento, observamos as dificuldades e distorções na implementação da carga horária de PCC nos cursos de Licenciatura em Matemática. Além disso, refletimos sobre uma disciplina específica com carga horária de PCC, que tem como tema principal as tecnologias digitais. Defendemos que a PCC esteja efetivamente presente nos cursos, buscando cada vez mais superar a dicotomia entre conhecimento específico e conhecimento pedagógico e enfatizamos que apenas políticas públicas não bastam para que mudanças efetivas aconteçam no contexto da formação inicial de professores.  This paper aims to discuss the concepts of Practice as a Curricular Component (PCC) in the literature, seeking to consolidate this questions in the field of Education, in particular Mathematics Education. For this, we contextualize the idea of the PCC as from legal documents regarding the initial formation of teachers and we show an overview of the research and conceptions of PCC present in the literature. In this movement, we observed the difficulties and distortions in the implementation of hours of PCC in degree courses in mathematics. In addition, we reflect on a specific discipline with hours of PCC, that has as its main topic digital technologies.  We advocate that the PCC be effectively present in the graduation, seeking to overcome the dichotomy between specific knowledge and pedagogical knowledge. We emphasize that only public policies are not enough for effective changes to occur in the context of initial formation teacher.
Um estudo sobre a participação de alunos do 6º ano do Ensino Fundamental em uma pesquisa estatística
A study on the participation of 6th grade students in a statistical research
Authors: Santos Oliveira Pâmela De Paula , De Souza Antonio Carlos
Published: May 2018

Este texto apresenta um recorte de uma pesquisa, de cunho qualitativo, cujo objetivo foi verificar como se deu a participação, em uma pesquisa estatística, de um grupo de alunos do 6º ano do Ensino Fundamental, matriculados em uma escola pública estadual da cidade de Guaratinguetá-SP. Os trabalhos para construção dos dados foram desenvolvidos ao longo de três encontros, nos quais foram realizados a elaboração um problema estatístico, os procedimentos de coleta, a coleta dos dados, sua organização em tabelas e gráficos, e, a interpretação dos resultados. As análises indicam que os alunos participantes já apresentavam indícios de noções de proporcionalidade, medidas de tendência central, censo e amostra, o que contribuiu de maneira significativa para o desenvolvimento do estudo realizado.This text presents a qualitative research, which aims to verify the participation in a statistical research of a group of 6th grade students enrolled in a state public school in the city of Guaratinguetá-SP. The data construction work was carried out during three meetings, in which a statistical problem was elaborated, the collection procedures, the data collection, its organization in tables and graphs, and the interpretation of the results. The analyzes indicate that the students already had evidence of notions of proportionality, measures of central tendency, census and sample, which contributed significantly to the development of the study. In addition, the development of the work, as proposed, favored a growing mobilization of statistical concepts by the students.
Matemática para o ensino do conceito de proporcionalidade a partir de um estudo do conceito
Mathematics for teaching of the proportionality concept from a concept study
Authors: Menduni-Bortoloti Roberta D'Angela , Barbosa Jonei Cerqueira
Published: May 2018

Neste artigo, apresentamos a construção de um modelo de matemática para o ensino do conceito de proporcionalidade a partir de um grupo com professores da educação básica. Inspirados em Brent Davis, recorremos ao Estudo do Conceito como dispositivo investigativo para identificação de diferentes formas dos professores comunicarem o conceito de proporcionalidade. A apropriação que fizemos desse dispositivo entrelaçado às definições teóricas dos trabalhos desenvolvidos pela pesquisadora Anna Sfard, se constituiu em estratégia para a produção e a análise do modelo. Os resultados da pesquisa, de natureza qualitativa, mostraram uma diversidade de realizações do conceito de proporcionalidade, as quais foram agrupadas em três cenários: como razão, como igualdade entre razões e como função.In this article, we present the construction of a mathematical model for teaching of the proportionality concept from a group with basic education teachers. Inspired by Brent Davis, we use the concept of study as an investigative device to identify different ways teachers communicate the proportionality concept. The appropriation we made this interlaced device to theoretical definitions of the work developed by researcher Anna Sfard, constituted in a strategy for the production and analysis of the model. The results of the research, qualitative, showed diversity in the realizations of the proportionality concept, which were grouped into three landscapes: as a reason, such as equality between reasons and as a function.
Uma discussão sobre legitimidades matemáticas utilizando o contexto dos números irracionais
A discussion about mathematical legitimacies using the irrational numbers context
Authors: Julio Rejane Siqueira , Ferreira Guilherme Francisco , Lins Romulo Campos
Published: May 2018

Este artigo tem o objetivo de discutir legitimidades matemáticas para responder a certos questionamentos sobre a “matemática do professor de matemática” ser considerada um modo de pensar a matemática na formação de professores. Para isso, abordamos as noções de matemática do professor de matemática, matemática do matemático e atividade matemática, na ótica do Modelo dos Campos Semânticos, por meio de comentários hipotéticos sobre a realização de uma proposta de atividade, de cunho histórico, envolvendo os números irracionais. Para concluir, argumentamos sobre a caracterização de atividade matemática ser uma possibilidade de compreender o compartilhamento de legitimidades entre a matemática praticada pelos professores de matemática e a matemática praticada por matemáticos.This paper aims to discuss mathematical legitimacies as an answer to some questions about “mathematics of the mathematics teacher” as a way to think the mathematics in the mathematics teacher education. In this discussion, we approach the notions of mathematics of the mathematics teacher, mathematics of the mathematician and mathematical activity according to the Model of Semantics Fields, through hypothetical comments about the realization of a task, based on history of mathematics, involving irrational numbers. In conclusion, we argue about the possibility to consider the characterization of mathematical activity as a way of understanding the sharing of legitimacies between mathematics practiced by mathematics teachers and mathematics practiced by mathematicians.
Sumário da prevenção da trombose venosa profunda na artroplastia total do joelho
Authors: Gali Julio Cesar , Silva Phelipe Augusto Cintra da
Published: May 2018

Os autores descrevem uma atualização sucinta dos principais métodos de prevenção da trombose venosa profunda depois da artroplastia total do joelho, divididos em mecânicos e farmacológicos. Relatam as principais drogas utilizadas, sua dosagem, riscos e benefícios comparativos.
Duração e frequência de consultas médicas e sua influência no tempo de aleitamento materno em uma unidade básica de saúde
Authors: Toledo Gabriela Moreira de , Penna Paula Savério de Oliveira Prata , Ribeiro Luciana Maria de Andrade
Published: May 2018

Introdução: A Organização Mundial da Saúde recomenda aleitamento materno exclusivo por seis meses e complementado até os dois anos. A maior duração do aleitamento materno diminui risco de obesidade e infecções. Objetivo: Descrever as taxas de aleitamento materno exclusivo e misto em uma população de uma unidade de saúde, bem como os fatores de desmame; comparar o tempo de aleitamento exclusivo e total entre as crianças atendidas por profissionais da prefeitura e alunos da faculdade de medicina. Métodos: Estudo retrospectivo, com revisão de 610 prontuários de crianças nascidas de janeiro de 2010 a dezembro de 2013 em seguimento na Unidade em questão. Resultados: O tempo médio de aleitamento exclusivo foi de 117 dias e o de aleitamento misto de 246 dias. A prevalência de aleitamento materno exclusivo no primeiro mês foi de 82,3%, superior às taxas da região Sudeste, tendo como fatores associados ao desmame precoce: parto cesárea, baixa produção de leite, tipo de atendimento. Conclusões: Observamos tempos de aleitamento materno exclusivo e total acima das médias nacionais e internacionais para esta população, particularmente no atendimento acadêmico onde as pacientes tem tempo de consulta maior e com maior possibilidade de reavaliação durante o primeiro mês de vida. A inclusão dos pacientes com registros mais completos e, portanto, exclusão daqueles onde não houve registro adequado, pode ter levado ao superdimensionamento destas taxas, pois não sabemos se a falta de registro está ou não acompanhada da orientação adequada para o aleitamento materno.
Percepções de pais sobre a epilepsia
Authors: Fonseca Maria Silian Mandu , Esposito Sandro Blasi , Silva Bryan Grignoli
Published: May 2018

Objetivo: comparar o conhecimento que os responsáveis e/ou familiares das crianças diagnosticadas com epilepsia e aquelas com outros diagnósticos possuem em relação a esse distúrbio. Método: este foi um estudo clínico descritivo transversal, que ocorreu através da aplicação da segunda parte do "Inventário Simplificado de Qualidade de Vida na Epilepsia Infantil". Resultados: participaram do estudo 83 indivíduos, sendo 36 do grupo de familiares de crianças com epilepsia e 47 do grupo de crianças com outros diagnósticos. O medo de a língua ser engolida durante uma crise epiléptica está presente em 55,5% dos familiares de crianças com epilepsia e 61,7% dos familiares das crianças do outro grupo. Conclusão: diante disso, é fundamental haver uma política de saúde e educação que envolva capacitação e conscientização sobre a Epilepsia.
Cuidadores de idosos institucionalizados: vivências de prazer e sofrimento
Authors: Andrade Pamela Fabíola de , Giongo Carmem Regina
Published: May 2018

Esta pesquisa tem como objetivo analisar as vivências de trabalho de cuidadores que atuam em lares geriátricos. Foram entrevistadas cinco cuidadoras, com idade entre 26 e 54 anos. A coleta de dados foi realizada por meio de entrevistas semiestruturadas, com perguntas abertas, possibilitando ao entrevistado falar livremente sobre as questões indicadas. Concluiu-se que estes profissionais têm uma ampla jornada de trabalho, fazendo muito além do trabalho prescrito e doando-se inteiramente para atender às necessidades apresentadas pelos idosos. Além disso, as cuidadoras entrevistadas pareceram não refletir sobre a prática do trabalho e afirmaram não ter escolhido esta profissão, mas vivenciado circunstâncias que as levaram a exercer tal atividade. Foi observado que neste campo de atuação não existem capacitações ou aprimoramento para o desempenho da função, implicando em riscos para a saúde física e mental destes profissionais.
Relações entre o hormônio cortisol e comportamentos de adolescentes: Uma revisão sistemática
Authors: Silva Andressa Melina Becker da , Silva Mariana Luiza Becker da , Enumo Sônia Regina Fiorim
Published: May 2018

A adolescência é um período do desenvolvimento com diversas alterações hormonais, físicas, emocionais, comportamentais e sociais. Há poucos estudos sobre as relações entre o hormônio cortisol e o comportamento de adolescentes, tema desta revisão sistemática. Consultaram-se as bases eletrônicas do Portal Periódicos da CAPES, com os descritores: “cortisol” or “hidrocortisona” or “corticosteroides” and “adolescente”, em inglês, espanhol e português, no período de 2000 a 2015. Foram analisados 19 artigos em inglês, com coleta de dados. Avaliou-se a presença de controle do ciclo circadiano por este interferir nas medidas do cortisol. Os estudos abordaram temas relacionando o cortisol com desenvolvimento do adolescente, problemas emocionais e comportamentais, destacando os problemas externalizantes, abuso de substâncias, e impactos da violência (estresse pós-traumático por abuso sexual, suicídio e automutilação). Conclui-se que o cortisol está relacionado ao desenvolvimento humano e apresenta mudanças durante a adolescência, segundo o crescimento puberal e o gênero. Também está associado a problemas emocionais e comportamentais, como a ansiedade e depressão, e a problemas de socialização. Sua mensuração poderia fazer parte de exames de rotina de adolescentes, auxiliando no diagnóstico de problemas de saúde física e mental. Novos estudos, com diferentes bases de dados e descritores, poderiam comparar os resultados encontrados.
Qualidade de vida e resiliência em estudantes do ensino médio: um estudo epidemiológico na cidade de São Paulo
Authors: Benincasa Miria , Resende Manuel Morgado , Heleno Maria Geralda Viana , Custódio Eda Marconi
Published: May 2018

O Objetivo deste estudo foi identificar os estudantes resilientes em uma amostra de 2434 alunos matriculados no ensino médio, na cidade de São Paulo. Considerou-se resiliente o participante que se destacou em comportamentos de saúde e que, frente à adversidade consegue supera-la, otimizando seus recursos pessoais e sociais. Estes estudantes foram selecionados a partir dos instrumentos aplicados, sendo eles: dois questionários de qualidade de vida, um sobre uso de droga e um sobre raciocínio verbal. Identificaram-se 11 resilientes que apresentaram desempenho acima da média geral da amostra total tantos nos instrumentos de qualidade de vida quanto no de raciocínio verbal. Por outro lado, mostraram consumo de substancia psicoativa abaixo da média.  Verificou-se que os resilientes tem mais acesso à atividade de lazer; e obtiveram resultados mais elevados na análise da autoestima e do relacionamento com a mãe. Os programas de promoção de saúde devem levar em conta o fortalecimento das capacidades individuais, apoio às famílias, mobilização de recursos coletivos, medidas intersetoriais de lazer, cultura e segurança pública.
APLIKASI JARINGAN SARAF TIRUAN METODE PERCEPTRON PADA PENGENALAN POLA NOTASI
Authors: Arifin Muhamad , Asfani Khoirudin , Handayani Anik Nur
Published: May 2018

Jaringan saraf tiruan (JST) merupakan pemroses informasi yang meniru cara kerja otak manusia, yaitu bentuk neuron (sel syaraf). Karena kelebihan ini, JST dapat dipakai untuk mengenali pola tertentu, pada penelitian ini pola notasi aritmatika. JST yang dipakai dengan metode perceptron. pola notasi aritmatika mulai dari notasi penjumlahan (+), pengurangan (-), perkalian (x), pembagian (/), dan sama dengan (=). Penentuan pengenalan pola notasi tersebut berdasarkan 3 inputan yang harus dimasukkan yaitu nilai bobot (w) = 0, nilai alpha (α) = 1, dan nilai threshold (θ) = 0. Tujuan dari penelitian yaitu mengetahui tingkat akurasi perhitungan excel dan program delphi pada pengenalan pola notasi pada jaringan saraf tiruan dengan metode perceptron. Metode penelitian dengan 3 cara yang dilakukan yaitu penentuan nilai inputan (x), penentuan nilai target (t), dan perhitungan nilai aktivasi. Hasil dari penelitian ini bahwa pengenalan pola notasi penjumlahan (+), pengurangan (-), perkalian (x), pembagian (/), dan sama dengan (=) dari kedua perhitungan baik secara manual pada program excel dan implementasi pada program Delphi dalam Jaringan Saraf Tiruan (JST) metode Perceptron, didapatkan hasil yang sama dengan selisih 0, sehingga dapat disimpulkan perhitungan manual dengan excel dan implementasi pada program Delphi untuk pengenalan pola notasi penjumlahan (+) adalah presisi. Kemudian untuk pengenalan pola lain seperti pengurangan (-), perkalian (x), pembagian (/), dan sama dengan (=) hasilnya antara perhitungan dan program juga sama.
SENTIMEN ANALISIS TWEET PORNOGRAFI KAUM HOMOSEKSUAL INDONESIA DI TWITTER DENGAN NAIVE BAYES
Authors: Pudjajana Andre Maureen , Manongga Danny
Published: May 2018

Media sosial adalah salah satu media yang menghubungkan orang-orang diseluruh dunia. Namun media sosial juga menjadi sarana untuk penyebaran hal-hal negatif seperti pornografi. Berita pornografi yang mendapat banyak perhatian ditahun 2017 yaitu pornografi pada kaum homoseksual yang melakukan pesta seks di beberapa kota di Indonesia. Kehadiran para kaum homoseksual dilarang di Indonesia dan mendapat diskriminasi dari masyarakat. Penolakan yang dialami membuat kaum homoseksual membuat kaum  tersebut  menggunakan  media  sosial  seperti  Twitter  untuk  membuka  diri  di  khalayak  umum, mencari pasangan sejenis, dan mencari penghasilan. Penelitian ini dilakukan sentimen analisis pada tweet Twitter sebagai text mining menggunakan metode Naïve Bayes. Tujuan penelitian ini adalah mengetahui hasil sentimen positif dan negatif terhadap data uji tweet dan berdasarkan hasil pengujian tersebut dapat disampaikan kepada pengguna Twitter secara luas untuk menggunakan Twitter secara tepat. Selain itu juga,  perhitungan  Naive  Bayes  dibandingkan  dengan  k-Nearest  Neighbor  (k-NN)  untuk  mengetahui tingkat akurasi. Hasil sentimen analisis terhadap 500 data uji menunjukkan bahwa nilai sentimen negatif sangat tinggi yaitu 68.4%. Sedangkan hasil perbandingan akurasi kedua metode adalah metode Naïve Bayes sebesar 87.48% dan k-NN 85.40% dimana metode Naïve Bayes lebih akurasi dibanding metode k- NN. Kata kunci: twitter, sentimen analisis, homoseksual, naïve bayes, k-NN.
IMPLEMENTASI AUGMENTED REALITY UNTUK IDENTIFIKASI LOGO DAN VIDEO SEBAGAI MEDIA INFORMASI MENGGUNAKAN METODE KLASIFIKASI NAIVE BAYESIAN
Authors: Putri Astrid Novita , Asmiatun Siti
Published: May 2018

Pada  Universitas Semarang Fakultas Teknologi Informasi dan  Komunikasi setiap  tahun  selalu mempunyai banyak kegiatan seperti kegiatan Seminar, Workshop, Pelatihan, Festifal, dsb. Kegiatan- kegiatan  tersebut  biasanya   didokumentasikan  dalam  bentuk  foto   dan   video.   Sedangkan  untuk dokumentasi publikasi kegiatan dalam bentuk media promosi maupun media informasi belum dilakukan, sehingga masyarakat umum yang kurang familiar tidak dapat mengetahui informasi dengan kegiatan yang ada. Memanfaatkan aplikasi smartphone yang berbasis android, blackberry, dan iphone dapat menggunakan  salah  satu  teknologi  augmented  reality  3D  yang  berfungsi  untuk  mengidentifikasi informasi melalui logo Fakultas TIK dan menerapkannya pada berbagai media cetak atau elektronik. Sehingga dengan adanya perubahan cara promosi tersebut diharapkan dapat menarik minat perhatian masyarakat umum dan masyarakat umum untuk mengetahui informasi mengenai kegiatan di Universitas Semarang khususnya Fakultas Teknologi Informasi dan Komunikasi. Pada penelitian ini, akan membahas bagaimana mengklasifikasikan kegiatan-kegiatan tersebut menggunakan metode naive bayes   menjadi dua  kategori yaitu favorit atau tidak favorit. Berdasarkan data foto dan video kegiatan FTIK tahun 2017 yang telah diimplementasikan menggunakan tools Unity 3D menunjukkan bahwa penerapan Augmented Reality untuk identifikasi logo sebagai media informasi menggunakan metode klasifikasi naive bayes dapat diimplementasikan dengan baik. Diharapkan dengan adanya klasifikasi kegiatan dengan memanfaatkan teknologi  augmented  reality  yang  diimplementasikan menggunakan  tools  Unity  3D, informasi yang dihasilkan akan lebih informatif dan menarik perhatian masyarakat umum.
DAUR ULANG PASIR SILIKA BEKAS INTI COR MELALUI TEKNIK BALL MILL UNTUK MENGEMBALIKAN DAYA IKATNYA
Authors: Slamet Sugeng , Bastian Yanuwar
Published: May 2018

Teknik pengecoran merupakan metode pembentukan material logam yang sudah lama dikenal oleh manusia. Metode ini mempunyai banyak keuntungan yaitu dapat menghasilkan benda sesuai dengan aslinya, tidak dibatasi leh ukuran dan sesuai untuk produk massal. Media yang sering digunakan adalah pasir dan sebagian pola dilengkapi dengan inti cor. Pasir silika digunakan pengrajin cor untuk membuat inti cor. Pasir silika ini hanya bisa digunakan untuk sekali pakai untuk satu cetakan. Pasir silika tidak dapat digunakan lagi karena tidak mempunyai daya ikat antar partikelnya. Metode yang dilakukan adalah menghancurkan kembali  bongkahan  pasir  inti  bekas  cor  ke  dalam  mesin  ball  mill  dengan  variasi kecepatan putar, waktu giling, diameter dan jumlah bola baja yang digunakan per 1000 gr. Pasir silika selanjutnya dilakukan pengayakan dengan menggunakan mesh 100 dan 150. Hasil penggilingan dengan teknik ball  mill  menunjukkan bahwa kecepatan putar  mesin ball  mill  yang  meningkat tidak secara signifikan meningkatkan prosentase hasil. Penambahan waktu giling mampu meningkatkan prosentase hasil untuk semua ukuran mesh. Penambahan waktu giling dari 30 menjadi 60 menit pada kecepatan putar yang sama dan penambahan diameter bola dari 20 menjadi 25 mm mampu meningkatkan 14,10% lebih tinggi pada mesh 100.  Perlakuan yang sama dengan mesh 150 terjadi peningkatan sebesar 3,88%. Pasir silika daur ulang digunakan untuk membuat kembali inti cor. Semakin kecil ukuran mesh pasir silika menunjukkan ikatan partikel yang lebih kuat dengan bentuk pola inti yang lebih sempurna.
Pengaruh dosis pupuk fosfor dan pupuk organik cair terhadap pertumbuhan dan hasil kacang hijau (Vigna radiata L.) pada ultisol Jatinangor
Authors: Wahyudin Agus , Nurmala Tati , Rahmawati R. D.
Published: May 2018

Percobaan ini bertujuan untuk mengetahui pengaruh dosis pupuk fosfor dan pupuk organik cair terhadap pertumbuhan dan hasil tanaman kacang hijau (Vigna radiata L.). Percobaan dilaksanakan di kebun percobaan Fakultas Pertanian Universitas Padjadjaran, Jatinangor, Jawa Barat. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) dengan sembilan perlakuan dan diulang tiga kali yaitu 50 kg ha-1 pupuk fosfor + O L ha-1 pupuk organik cair, 50 kg ha-1 pupuk fosfor + 4 L ha-1 pupuk organik cair, 50 kg ha-1 pupuk fosfor + 8 L ha-1 pupuk organik cair, 75 kg ha-1 pupuk fosfor + O L ha-1 pupuk organik cair, 75 kg ha-1 pupuk fosfor + 4 L ha-1 pupuk organik cair, 75 kg ha-1 pupuk fosfor + 8 L ha-1 pupuk organik cair, 100 kg ha-1 pupuk fosfor + O L ha-1 pupuk organik cair, 100 kg ha-1 pupuk fosfor + 4 L ha-1 pupuk organik cair, 100 kg ha-1pupuk fosfor + 8 L ha-1 pupuk organik cair. Hasil percobaan menun-jukkan bahwa perlakuan pupuk fosfor 50 kg dan pupuk organik cair 8 Lha-1  menghasilkan bobot biji per petak sebesar 298,68 gr dan hasil rata-rata per hektar sebesar 0,99 t ha-1. Kata kunci : Kacang hijau ∙ Pupuk fosfor ∙ Pupuk organik cair
Pengaruh sitokinin dan paklobutrazol terhadap pertumbuhan dan hasil benih kentang (Solanum tuberosum L.) G2 kultivar granola dengan sistem nutrient film technique
Authors: Ibrahim M. , Nuraini Anne , Widayat Dedi
Published: May 2018

Percobaan ini dilakukan untuk mengetahui pengaruh sitokinin dan paklobutrazol terhadap pertumbuhan dan hasil benih kentang (Solanum tuberosum L.) G2 kultivar Granola dengan menggunakan sistem Nutrient Film Technique. Percobaan dilakukan di rumah plastik CV. Alam Pasundan, Cibiru, Bandung dari bulan April sampai dengan Agustus 2014 dengan ketinggian lokasi penelitian ± 700 m dpl. Rancangan perco-baan yang digunakan adalah Rancangan Acak Kelompok dengan enambelas perlakuan dan masing-masing terdiri dari tiga ulangan. Perlakuan yang digunakan adalah : A (kontrol), B (25 ppm sitokinin), C (50 ppm sitokinin), D (75 ppm sitokinin), E (50 ppm paklobutrazol), F (100 ppm paklobutrazol), G (150 ppm paklobutrazol), H (25 ppm sitokinin + 50 ppm paklobutrazol), I (25 ppm sitokinin + 100 ppm paklobutrazol), J (25 ppm sitokinin + 150 ppm paklobutrazol), K (50 ppm sitokinin + 50 ppm paklobutrazol), L (50 ppm sitokinin + 100 ppm paklobutrazol), M (50 ppm sitokinin + 150 ppm paklobutrazol), N (75 ppm sitokinin + 50 ppm paklobutrazol), O (75 ppm sitokinin + 100 ppm paklobutrazol), P (75 ppm sitokinin + 150 ppm paklobutrazol). Hasil perco-baan menunjukan bahwa terdapat pengaruh pemberian kombinasi konsentrasi sitokinin dan paklobutrazol terhadap tinggi tanaman, jumlah daun majemuk, bobot segartanaman, dan bobot kering tanaman, tetapi tidak terdapat pengaruh terhadap komponen hasil. Pemberian sitokinin dan paklobutrazol masih belum mampu meningkatkan hasil benih kentang.Kata kunci : Benih ∙ Kentang ∙ Sitokinin, paklobutrazol ∙ Nutrient film technique
Pengaruh Konsentrasi Benzyl Amino Purine terhadap Pertumbuhan Beberapa Klon Tanaman Teh (Camellia sinensis L.) O. Kuntze) Belum Menghasilkan di Dataran Rendah
Authors: Ayuningsari Indah , Rosniawaty Santi , Maxiselly Yudithia , Anjarsari Intan Ratna Dewi
Published: May 2018

Pertumbuhan tanaman teh (Camellia sinensis L.) O. Kuntze) di dataran rendah dipengaruhi oleh faktor genetik dan faktor lingkungan. Faktor genetik berupa klon unggul dan faktor lingkungan berupa aplikasi hormon eksogen diharapkan mampu meningkatkan pertumbuhan tanaman teh belum menghasilkan (TBM) di dataran rendah. Penelitian disusun menggunakan Rancangan Petak Terbagi (RPT) dengan dua faktor perlakuan. Klon sebagai petak utama yang terdiri dari GMB 4, GMB 7, GMB 9, dan GMB 11. Konsentrasi Benzyl Amino Purine (BAP) sebagai anak petak yang terdiri dari 0 ppm, 30 ppm, 60 ppm, 90 ppm, dan 120 ppm. Hasil penelitian menunjukan adanya interaksi antara klon dan konsentrasi BAP terhadap pertambahan diameter batang pada 4 MSP. Konsentrasi BAP 60 ppm berpengaruh paling baik terhadap diameter batang dan jumlah tunas pada 2 MSP. Klon GMB 4 menunjukan hasil terbaik terhadap jumlah tunas.Kata kunci       : TBM, Klon GMB, BAP
Computer Aided Verification of Relational Models by Strategic Rewriting
Authors: Necco Claudia Mónica , Oliveira José N. , Visser Joost , Uzal Roberto
Published: May 2018

Binary relational algebra provides semantic foundations for major areas of computing, such as database design, state-based modeling and functional programming. Remarkably, static checking support in these areas fails to exploit the full semantic content of relations. In particular, properties such as the simplicity or injectivity of relations are not statically enforced in operations such as database queries, state transitions, or composition of functional components. When data models, their constraints and operations are represented by point-free binary relational expressions, proof obligations can be expressed as inclusions between relational expressions. We developed a typedirected, strategic term rewriting system that can be used to simplify relational proof obligations and ultimately reduce them to tautologies. Such reductions can be used to provide extended static checking for design contraints commonly found in software modeling and development.
Image Edge Detection Using FPGA
Authors: Kumari Cms Amrutha , Badashah Syed Jahangir
Published: May 2018

Medical imaging often involves the injection of contrast agents and subsequent analysis of tissue enhancement patterns. X-ray angiograms are projections of 3D reality into 2D representations, there is a fair amount of self occlusion among the vessels, hence one cannot extract the vessels directly using the image intensities or gradients (edge) alone. Vessels extraction from angiogram images is useful for blood vessels measurement and computer visualizations of the coronary artery. This project describes the algorithm for automatic segmentation of coronary arteries in digital X-ray projections here an improved k-means algorithm is proposed. The performance of the proposed algorithm is compared with other techniques.Â A methodology for implementing real-time DSP applications on a field programmable gate arrays (FPGA) using Xilinx System Generator (XSG) for Mat lab is presented in this paper. It presents the architecture for Edge Detection using Sobel Filter for image processing using Xilinx System Generator. The design was implemented targeting a Spartan3 a DSP 3400 device (XC3SD3400A-4FGG676C) then a vertex 5 (xc5vlx50-1ff676) .the edge detection methods has been verified successfully with no visually perceptual errors in the resulted images.
ZigBee-Based Wireless Sensor Network for Temperature Monitoring
Authors: Hussien Anas Ali , Tawfeeq Ali Hameed
Published: May 2018

The proposed system in this paper describes the design and implementation of a Wireless Sensor Network (WSN) based on ZigBee technology to monitor the history and current temperature information of remote locations. The system is an electronic embedded system that contains: Base Station with coordinator ZigBee, End nodes with router ZigBee, and host computer as a data base (DB) server. The base station is responsible for data collecting, a display for end node sensor readings, and TCP/IP communication with the host computer. End nodes are directly connected with sensors and transmitting the readings of these sensors to the base station. The host computer is responsible for building a data base from end nodes sensor readings. The Microcontroller Units (MCUs) from Peripheral Interface Controller (PIC) family have been used and the firmware has been developed using C language with MikroC Pro which is a full-featured ANSI C Compiler for Microchip PIC MCU as a development environment.
Noise Elimination for Image Subtraction in Printed Circuit Board Defect Detection Algorithm
Authors: Ibrahim Zuwairie , Ibrahim Ismail , Khalil Kamal , Nawawi Sophan Wahyudi , Abdul Rahim Muhammad Arif , Aspar Zulfakar , Wan Ahmad Wan Khairunizam
Published: May 2018

Image subtraction operation has been frequently used for automated visual inspection of printed circuit board (PCB) defects. Even though the image subtraction operation able to detect all defects occurred on PCB, some unwanted noise could be detected as well. Hence, before the image subtraction operation can be applied to real images of PCB, image registration operation should be done to align a defective PCB image against a template PCB image. This study shows how the image registration operation is incorporated with a thresholding algorithm to eliminate unwanted noise. The results show that all defects occurred on real images of PCB can be correctly detected without interfere by any unwanted noise.
On the Error Rate and Delay Performance Analysis of OFDM based Cooperative Protocol for 802.11 Networks
Authors: Ahmed Irfan
Published: May 2018

We develop and analyze a distributed space-frequency block code-orthogonal frequency division multiplexing protocol for cooperative communications in 802.11 networks. Space frequency block codes (SFBC) are spread over OFDM subcarriers instead of OFDM symbols to compensate for the small coherence time. Medium access control (MAC) layer packet retransmission limit has been used as an actuator for transmit cooperative diversity initialization. Transmit diversity is provided by the relays in close proximity to source node. Closed form expressions are obtained for packet error rate (PER) and average delay for the proposed scheme in Nakagami-m fading channels. This cooperative scheme achieves lower signal-to-noise ratio (SNR) values for desired packet error rate and markedly improves the average delay per packet compared to the direct transmissions at low SNR regime. Finally, the results of computer simulations are included to demonstrate the efficacy of the proposed scheme and to verify the accuracy of analytical expressions.
VEGETABLE OILS FOR HIGH VOLTAGE INSULATION BY
Authors: O. A Ezechukwu
Published: May 2018

This paper discusses the findings of the study of the possibility of using some vegetable oils as high voltage insulation materials. Samples of palm oil (elaeis guineensis), palm kernel oil (elaeis guineensis), coconut oil (cocos nucifera), groundnut oil(Arachis hypogea) and local pear oil(dacryodes edulis) were obtained from Ekwulobia town, processed and tested. The results obtained showed exciting performance for palm oil, palm kernel oil and groundnut oil. Investigation on the dielectric strength of local pear oil (dacryodes eduli) is inconclusive because the sample collected was not sufficient for the tests.
Beta Wavelet Neural Network Based Load-Frequency Controller for an Interconnected Reheat Power system with Hydrogen Electrolyser
Authors: Francis R. , Chidambaram Dr.I. A.
Published: May 2018

This paper investigates a renewable energy resources application to the Load-Frequency Control of interconnected power system. The Proportional plus Integral(PI) controller gains of the two area interconnected thermal power system with the fast acting energy storage devices are designed based on Control Performance Standards (CPS) using conventional/Beta Wavelet Neural Network(BWNN) approaches. The energy storing device Hydrogen generative Aqua Electrolizer (HAE) with fuel cell can efficiently damp out the electromechanical oscillations in the power system because of their efficient storage capacity in addition to the kinetic energy of the generator rotor, which can share the sudden changes in power requirements. The system was simulated and the frequency deviations in area 1 and area 2 and tie-line power deviations for 1% and 5% step- load disturbance in area 1 are obtained. The comparison of frequency deviations and tie-line power deviations of the two area interconnected thermal power system with HAE designed with BWNN Controller are found to be superior than that of output response obtained using PI Controller.
History Aware Anomaly Based IDS for Cloud IaaS
Authors: Gupta Punit , Kaliyar Pallavi
Published: May 2018

Cloud Computing provides different types of servicesÂ  such as SaaS, PaaS, IaaS. Each of them have their own security challenges, but IaaS undertakes all types of challenges viz., network attack ,behaviour based attack, request based attacksÂ  i.e handling the requests from untrusted users, XSS (cross site scripting attack), DDOS and many more. These attacks are independent of each other and consequently the QoS provided by cloud is compromised. This paper proposes a History aware Behaviour based IDS (Intrusion Detection System) BIDS. BIDS provides detection of untrusted users, false requests that may lead to spoofing, XSSÂ  or DOS attack and many more such attacks. In addition,Â  certain cases where user login or password is compromised. History aware BIDs can be helpful in detecting such attacks and maintaining the QoS provided to the user in cloud IaaS ( Infrastructure as a service).
Trusted Cloud Platform for Cloud Infrastructure
Authors: Gupta Punit , Agrawal Deepika
Published: May 2018

Reliability and trust Models are used to enhance secure , reliable scheduling , load balancing and QoS in cloud and Distributed environment. Trust models that are being used in Distributed and Grid environment, does not qualify cloud computing environment requirements. Since the parameters that have being taken into consideration in these trust models, does not fit in the cloud Infrastructure As A Service, a suitable trust model is proposed based on the existing model that is suitable for trust value management for the cloud IaaS parameters. Based on the above achieved trust values,Â  trust based scheduling and load balancingÂ  is done for better allocation of resources and enhancing the QOS of services been provided to the users. In this paper, an trust based cloud computing framework is proposed using trust model ,trust based scheduling and load balancing algorithms. Here we describe the design and development of trusted Cloud service model for cloud Infrastructure as a service (IaaS) known as VimCloud .VimCloud an open source cloud computing framework that implements the tusted Cloud Service Model andÂ  trust based scheduling and load balancing algorithm . However one of the major issues in cloud IaaS is to ensure reliability and security or used data and computation. Trusted cloud service model ensures that user virual machine executes only on trusted cloud node, whose integrity and reliability is known in term of trust value . VimCloud shown practical in term of performace which is better then existing models.
Comparative Study of Different Technique for Medical Image Segmentation: A Survey
Authors: Chandale Abhishek , Singh Divakar
Published: May 2018

Image analysis and processing can be done using image segmentation as one of the most critical aspect. Various subsequent processes of image analysis such as object representation object description ,feature measurement get affected as a consequence of segmentation .Other higher level tasks such as object classification also get affected b y segmentation. Due to all above reasons, imagesegmentation is considered as one of the most vital and essential process for providing features like delineration, characterization and visualization of important regions in any medical image. Its is necessary to provide accuracy with less time consumption in medical image segmentation Since manual segmentation is very tedious and time consuming to achieve and medical images are mostly unmanageable to be examined .Hence it is necessary to analysis & review current methods and algorithms accruing and need minimal user interaction in case of medical images. In medical images segmentation, the anatomical structure or region to be examined has to be extracted and delineated so as to improve its visibility. This paper projects importance of decision making process in segmentation of images to extract relevant information.
Data Access Layer: A Programming Paradigm on Cloud
Authors: Guleria Pratiyush
Published: May 2018

Database is important for any application and critical part of private and public cloud platforms. For compatibility with cloud computing we can follow architectures like three tier architecture in .Net Technologies such that database layer should be separate from user and business logic layers. There are some other issues like following ACID properties in databases, providing dynamic scalability by using Shared-disk Architecture and efficient multi-tenancy, elastic scalability, and database privacy.
An Extended Recommendation System using Data Mining Implemented for Smart Phones
Authors: Gyorodi Robert , Gyorodi Cornelia , Dersidan Mihai
Published: May 2018

In this paper we introduce a recommendation system that attempts to solve some ofÂ the issues of classical recommendation systems: the need for huge amounts of data toÂ be able to extract meaningful patterns, or for directly visible connections between theÂ users. We propose a rating method that is based on a hierarchical tag system used toÂ describe the subjects of recommendation, and two data mining algorithms that runÂ on the data gathered through this rating system.
Searching for Smart City definition: a comprehensive proposal
Authors: Dameri Renata Paola
Published: May 2018

During the latest years, smart city projects have been more and more popular and widespread all over the world. The continuous increasing of cityâ€™s population and the complexity of city management drive local governments towards the strong use of technologies to support a higher quality of urban spaces and a better offering of public services. The fascination of smart cities, able to link high technology, green environment and well-being for citizens, interests all the municipalities, independently on their dimensions, geographical area or culture. However, the concept of smart city is far from to be unambiguous. Several experiences all over the world show that cities define themselves as smart, but the meaning attributed to this word is different each time. Smart city concept has been growing from empirical experience, therefore a systemic theoretical study about this phenomenon still lacks. In this paper, the author aims to propose a comprehensive and verified definition of smart city, based on both a deep literature investigation about smart city studies and a large survey of smart city projects in the international panorama. The goal of this work is not only to provide a clear framework about this interesting and current topic, but also to support local governments and public administrations in effective smart city implementation, able to create public value and well being for citizens and environmental sustainability in the urban space.Â
Analyze the Future: Cloud Computing, a New Phase in Information Technology Infrastructure Management
Authors: Kulshrestha Vartika , Verma Dr. Seema
Published: May 2018

The use of cloud computing is becoming widespread, but systematic study of its managerial implications is lacking. This paper examines cloud computing in the context of other major changes in Information Technology (IT) and explores the revolutionary transformations and challenges which bring to IT management. Cloud computing has a high reliability, low cost and good availability. With the increasing use of technology in modern era, there is a growing requirement of information technology infrastructure management. Over some decades in the past, organizations have put their efforts in the development and application of information technology to collect, analyze and process the data. Various computing paradigms have been employed for the purpose and needs have emerged for enormous infrastructure.Cloud Computing is evolving as a key computing platform for sharing resources that include infrastructure, software application and business processes. Virtualization is a core technology for enabling cloud resources sharing (Liang et al. 2009). Virtualization refers to the abstracting of a form of technology away from its original environment. The benefit derives from being able to redeliver it in a virtual (or â€œlogicalâ€) form capable of the same functionality as the original, but with greater flexibility (Tata Communication White Paper 2012). This paper presents how Cloud Computing service model â€“ Infrastructure as a Service (IaaS) can be used to meet the increasing demands of the Information Technology Infrastructure Management and how Cloud Computing paradigm can prove to be future solution for such systems. With IaaS, IT services can be delivered as a subscription service, eliminating up-front costs and driving down ongoing support costs.
SPICE-like Models for Nonlinear Capacitors and Inductors
Authors: Iordache Mihai , Dumitriu Lucia , Perpelea Mircea , SÃ®rbu Ioana-Gabriela , Mandache Lucian
Published: May 2018

Some new models for nonlinear capacitors and nonlinear inductors built with SPICE-like element primitives are presentedhere. They have the advantage that they can be used for simulation in SPICE of those circuits which contain nonlinearcapacitors controlled either in voltage or in charge, and nonlinear inductors controlled either in current or in flux. TheseSPICE-like models contain current sources whose controlling variables are charge time-derivative and sources whosecontrolling variables are flux time-derivative. For validation, the models are included in nonlinear circuits; their behavior isstudied by simulation using two different simulators and the results are compared.
Web Content Processing Method for Electronic Business Systems
Authors: Vysotska Victoria , Chyrun Lyubomyr
Published: May 2018

The given article is devoted to the development of standardized methods and software Web content processing in e-business systems. The model of electronic content commerce systems is developed. The models of commercial Web content processing subsystems are constructed. A new approach of business processes application and implementation for the construction of electronic content commerce systems is formulated. Complex methods of formation, management and support commercial content are developed. Software for information resources processing in electronic content commerce systems is developed. The methods of e-business systems designing and implementation are presented as example on online newspaper and online magazine that reflect the theoretical studies results.
Sentiment Analysis of Arabic Slang Comments on Facebook
Authors: Soliman Taysir Hassan , Elmasry M. A. , Hedar A. , Doss M. M.
Published: May 2018

Social networks have become one of our daily life activities not only in socializing but in e-commerce, e-learning, and politics. However, they have more effect on the youth generation all over the world, specifically in the Middle East. Arabic slang language is widely used on social networks more than classical Arabic since most of the users of social networks are young-mid age. However, Arabic slang language suffers from the new expressive (opinion) words and idioms as well as the unstructured format. Mining Arabic slang language requires efficient techniques to extract youth opinions on various issues, such as news websites. In this paper, we constructed a Slang Sentimental Words and Idioms Lexicon (SSWIL) of opinion words is built. In addition, we propose a Gaussian kernel SVM classifier for Arabic slang language to classify Arabic news comments on Facebook. To test the performance of the proposed classifier, several Facebook news comments are used, where 86.86% accuracy rate is obtained with precision 88.63 and recall 78.
A Simplified Analysis of an Electrical Network with Resistive and/or Reactive Elements
Authors: De Groff Dr. Dolores
Published: May 2018

Typically star-delta transformation is adopted in determining the equivalent impedance between two terminals of an electrical network [2]. Shown relevantly in [1] is a simplified approach, less time-consuming to determine the equivalent resistance between two terminals of an electrical circuit made of resistive elements (of equal values) and, hence the resultant currents in the ciurcuit are determined. This concept is extended and generalized in this study to a class of networks with unequal resistances and/or reactances to determine the equivalent impedance between two nodes. This generalized approach is more comprehensive and universal in analyzing electrical network with complex impedances (regardless of their values). It is applicable to both contexts of circuits with pure resistive elements (as in d.c. analysis) as well as with complex impedances encountered in a.c. analysis.
Trust Model Development for Cloud Environment using Fuzzy Mamdani and Simulators
Authors: M. Mousa Hamdy , F. Elhady Gamal
Published: May 2018

Nowadays, Cloud computing is an expanding area in research and industry, which involves virtualization, distributed computing, internet, software, security, web services and etc. A cloud consists of several elements such as clients, data centers and distributed servers, internet and it includes fault tolerance, high availability, effectiveness, scalability, flexibility, reduced overhead for users, reduced cost of ownership, on demand services and etc. Now the next factor is coming, cost of Virtual machines on Data centers and response time. So this paper develop trust model in cloud computing based on fuzzy logic, to explores the coordination between Data Centers and user bound to optimize the application performance, cost of Virtual machines on Data centers and response time using Cloud Computing Analyst.