bluuebunny/crossref_metadata_2025 huggingface dataset:
The Clinical Utility of Electrocardiographic Holter Monitoring for Detecting Sleep Apnea
Authors: Kruse Marcelo Lapa
Published: February 2022

Objectives: Obstructive sleep apnea (OSA) is an emerging risk factor for cardiovascular disease and is mostly undiagnosed. Sudden changes in heart rate mediated by the autonomic nervous system are observed during sleep apnea episodes. It is not clear whether the presence of cyclic variation of heart rate (CVHR) is useful in predicting OSA. The purpose of the present study was to estimate the diagnostic accuracy of electrocardiographic Holter monitoring to identify patients with significant OSA in a selected population compared to polysomnogram.
Methods: 136 consecutive patients underwent polysomnography (PSG) and electrocardiogram (ECG) Holter monitoring simultaneously for eight hours during sleep-time. All data from the PSG, the ECG Holter recordings and the automated sleep apnea software were evaluated to compare patients with regard to cyclic variation of heart rate, apnea and hypopnea index (AHI) and sleep parameters.
PERANCANGAN TEBAL PERKERASAN KAKU MENGGUNAKAN METODE MANUAL DESAIN PERKERASAN JALAN 2017 (Studi Kasus Jalan Pelabuhan Sungai Pakning, Kecamatan Bukit Batu, Kabupaten Bengkalis)
Authors: Pratiwi Nolia Siska , Lizar Lizar
Published: February 2022

Jalan pelabuhan Sungai Pakning merupakan jalan utama untuk menghubungkan Sungai Pakning dengan Pulau Bengkalis, jalur ini digunakan oleh masyarakat untuk penyeberangan barang maupun orang. Kondisi saat ini jalan pelabuhan Sungai Pakning hanya memiliki 1 jalur dengan lebar 6 meter, kondisi tersebut menyebabkan terganggunya arus keluar dan masuk kendaraan dipelabuhan. Kondisi tersebut diperparah oleh adanya kendaraan berat yang melewati jalur tersebut. Oleh karena itu diperlukan penambahan jarur baru agar arus keluar dan masuk kendaraan dipelabuhan tersebut dapat dibuat terpisah. Untuk mewujudkan rencana tersebut maka perlu dilakukan perencanaan perkerasannya. Jenis perkerasan yang dipilih adalah perkerasan kaku bersambung dengan tulangan (BBDT) dengan mutu beton K-350, jenis ini dipilih karena memiliki umur layanan yang panjang yaitu 40 tahun. Perencanaan tebal perkerasan menggunakan metode MDPJ 2017. Dari hasil perhitungan maka didapat tebal perkerasan beton sebesar 17,5 cm, lebar 6 m, panjang jalan 150 m, diameter dowel dan tie bar 12 mm, jarak dowel 600 mm, jarak tie bar 750 mm dan anggaran biaya pembangunan sebesar Rp 853, 100,000,00.
Penerapan Model Decision Tree Algoritma Untuk Mengidentifikasi Penyakit Pencernaan Dengan Pengobatan Herbal
Authors: Latif Nuraida , Ashari
Published: February 2022

Penelitian ini bertujuan untuk mengidentifikasi penyakit pencernaan dengan  pengobatan herbal menggunakan model  decision tree algoritma. Penyakit pencernaan merupakan salah satu penyakit yang banyak di derita oleh manusia, dan mengalami peningkatan tiap tahunnya. Pencernaan merupakan salah satu organ manusia yang sangat penting bagi tubuh manusia. Pentingnya kinerja organ pencernaan yang ada di dalam tubuh manusia membuat manusia harus menjaga kesehatan agar tubuh tetap bekerja dengan baik. Pengetahuan masyarakat yang sedikit akan gejala-gejala awal dari suatu penyakit merupakan faktor-faktor penyakit menjadi parah ketika penderita ditangani oleh tenaga paramedis. Data-data penelitian dilakukan dengan penelitian lapangan, studi pustaka, wawancara.  Berdasarkan pengujian dan penggunaan sistem informasi, didapatkan hasil quisioner yang menyatakan baik dengan pengujian terhadap kemudahan penggunaan (daya guna) diperoleh hasil 90%, fungsionalitas diperoleh hasil 90%, antarmuka pengguna diperoleh hasil 95%, efisiensi diperoleh hasil 95%, integritas (keamanan) diperoleh hasil 90%, kemampuan adaptasi sistem diperoleh hasil 92,5%, keakuratan diperoleh hasil 90% dan kemudahan instalasi software diperoleh hasil 90%.
Sistem Penilaian Kinerja Aparat Pemerintah Desa Dengan Metode Profile Matching
Authors: Ikhsan Amar Muh.
Published: February 2022

Penelitian ini bertujuan untuk membangun sistem perangkat lunak penilaian kinerja aparat pemerintah Desa. Menggunakan metode pengumpulan data dengan teknik observasi, wawancara dan studi kepustakaan. Metode pengembangan perangkat lunak menggunakan paradigma waterfall model dan dirancang menggunakan teknik Unified Modeling Language. Penilaian menggunakan metode Profile Matching yang di implementasikan dengan bahasa pemrograman Visual Basic.NET dan menggunakan basisdata MySQL, pengujian dilakukan dengan menggunakan metode pengujian fungsional Black Box. Penelitian ini menghasilkan perangkat lunak penilaian multikriteria yang dapat digunakan sebagai media penilaian kinerja aparat pemerintah Desa. Perangkat lunak yang dibangun berkonsep dinamis agar dapat memfasilitasi penambahan dan atau modifikasi kriteria/aspek penilaian sehingga dapat digunakan oleh berbagai pemerintah Desa dengan kriteria/aspek penilaian yang berbeda-beda.
Perancangan Dan Implementasi Sistem Informasi Berbasis Web Pada Organisasi Nahdlatul Ulama (Nu) Dalam Pengelolaan Data Tingkat Cabang Supaya Terintegrasi Secara Terpusat
Authors: Lubis Ghozali Ahmad , Adi Cahyanto Kurnia , Widayanti
Published: February 2022

Nahdlatul ulama merupakan organisasi masyarakat yang besar dan cakupannya luas. Salah satunya yaitu Pengurus Cabang Nahdlatul Ulama di Kabupaten Indramayu. Dalam tingkatan pengurus masih belum adanya koordinasi untuk pendaftaran anggota, dimana masih belum mengetahui jumlah anggota percabang dan anggota resmi yang sudah terdaftar. Sehingga data-data anggota masih belum terorganisir dengan baik. Begitupun dengan pengurus, belum adanya koordinasi antar cabang. Berdasarkan analisis tersebut, dibuatlah aplikasi Pengurus Cabang Nahdlatul Ulama yang berjudul “Perancangan dan Implementasi Sistem Informasi Berbasis Web pada Organisasi Nahdlatul Ulama (NU) dalam Pengelolaan Data Tingkat Cabang Supaya Terintegrasi Secara Terpusat” sehingga dapat memudahkan pengurus cabang dalam mendata anggota ataupun pengurus disetiap cabangnya. Metodologi yang digunakan untuk sistem adalah metodologi waterfall sistem dibangun dengan menggunakan bahasa pemrograman PHP. Pengujian yang dilakukan pada penelitian ini menggunakan metode black-box testing untuk menemukan kesalahan fungsi pada program. Setelah dilakukan pengujian, didapatkan hasil bahwa proses register, proses login, proses penambahan anggota, proses penambahan cabang, proses penambahan pengurus, proses keuangan, dan proses penambahan barang inventaris dapat dilakukan dengan sukses serta secara fungsional sistem dapat menghasilkan keluaran yang diharapkan.
Penerapan Six Sigma Untuk Menganalisa Pemanfaatan Teknologi Informasi dan Komunikasi Pada UKM Batik Tulis Lasem
Authors: Mahmudi A. Aviv
Published: February 2022

UKM Batik Tulis Lasem merupakan salah satu produk unggulan Kabupaten Rembang. Pemanfaatan teknologi pada UKM Batik Tulis Lasem diantaranya kurangnya pemanfaatan teknologi informasi dan komunikasi yang menunjang proses produksi maupun pemasaran berbasis internet/e-commerce. Untuk itu diperkukan peningkatan layanan pelanggan melalui pemanfaatan TIK khususnya media online untuk mendukung layanan pada pelanggan, meningkatkan kualitas serta memperbaiki kekurangan layanan yang ada. Analisis data dilakukan dengan diawali melakukan uji validitas dan reliabilitas, melakukan uji normal multivariate dan stabilitas data, serta melakukan tahapan Six Sigma. Hasil penlitian menunjukkan bahwa dari pengidentifikasian faktor-faktor yang telah dilakukan pada maka dapat diketahui yang menyebabkan beberapa perusahaan tidak memanfaatkan teknologi informasi yaitu UKM yang belum menggunakan perangkat komputer di UKM, tingginya biaya koneksi internet, tidak memiliki tenaga ahli bidang TIK, tidak memiliki strategi bisnis melalui internet, kemampuan SDM pemilik dalam TI rendah, kurang bermanfaat bagi perusahaan, kendala ketersedian koneksi internet (ISP).
Analisa Pencarian Rute Tercepat Menuju Tempat Wisata Pulau Kumala Kota Tenggarong Menggunakan Algoritma Greedy
Authors: Puja Kekal Harming , Gata Windu , Nurdiani Siti , Setio Rini Andi Jati , Sely Wita Deviana
Published: February 2022

Pada saat kita hendak berpergian seringkali memikirkan sebuah rute perjalanan yang akan dilalui. Maka dari itu perlu ditentukan sebuah alternatif perjalanan menuju tempat wisata dari tempat satu ke tempat lainnya supaya sampai dengan cepat. Selain itu kita harus mempertimbangkan waktu agar tidak terlalu lama membuang waktu dalam perjalanan. Penelitian ini bertujuan untuk menentukan rute tercepat dari Samarinda (ring road) (node A) ke Pulau Kumala (node H) dengan mempertimbangkan jarak dan waktu menggunakan algoritma greedy. Dalam hal ini terdapat tiga pilihan rute perjalanan dari node A menuju node H. Pilihan rute pertama yaitu dari node A→C→F→G→H, kemudian rute kedua yaitu dari node A→B→D→F→G→H, dan rute yang ketiga yaitu A→B→E→G→H. Untuk menentukan rute perjalanan dengan jarak terpendek dan waktu yang cepat dapat dilakukan dengan menggunakan solusi pendekatan algoritma Greedy. Algoritma Greedy membentuk solusi langkah per langkah dan terdapat beberapa pilihan yang memberikan hasil terbaik dengan membuat pilihan optimum lokal pada setiap langkah sehingga diperoleh solusi optimum global. Metode pengumpulan data menggunakan teknik studi literatur, observasi dan wawancara dalam memahami permasalahan objek penelitian selanjunya dilakukan alur penelitian untuk memudahkan dalam implementasi analisa pemilihan rute. Berdasarkan hasil dan pembahasan pada objek penelitian diperoleh hasil penelitianpencarian rute terpendek dari node A menuju node H yaitu rute dari Ring Road → Pusaka → Polowali → Teluk Dalam → Pulau Kumala dan dinyatakan dengan node rute A→B→E→G→H dengan jarak 20 Kilometer
Rancang Bangun Sistem Laporan Daya Serap (Siladara) Berbasis Web Pada Badan Pusat Statistik Kabupaten Sukabumi
Authors: Rasyad Koswara Farhan
Published: February 2022

Laporan adalah bentuk penyajian fakta tentang suatu keadaan atau kegiatan. Organisasi membutuhkan suatu cara bagaimana membuat laporan dengan cepat dan mudah. Aplikasi spreadsheet merupakan salah satu sistem yang memudahkan dalam penulisan laporan, hanya saja untuk menggunakan sistem ini dibutuhkan sebuah keahlian dan keterampilan. Sistem pelaporan Berbentuk web merupakan salah satu cara untuk menyelesaikan masalah penulisan Laporan, karena lebih cepat dan mudah digunakan serta hanya membutuhkan internet untuk mengakses sistem atau aplikasi tersebut. Metode yang digunakan dalam membangun sistem ini ialah mengunakan metode Prototype. Menggunakan Codeigniter dan Php sebagai framework dan Mysql untuk database. Sistem laporan daya serap (Siladara) ini merupakan suatu aplikasi web berbentuk Prototype yang berisi laporan anggaran dan kwitansi di BPS Kabupaten Sukabumi.
PENERAPAN KONSEP FINITE STATE AUTOMATA PADA SIMULASI ALAT PELIPAT PAKAIAN OTOMATIS
Authors: Ricko Anugrah Mulya Pratama
Published: February 2022

Kebutuhan primer setiap manusia adalah sandang, pangan dan papan, sehingga ketiga aspek tersebut merupakan indikator standar kehidupan minimum seseorang atau komunitas. Sandang (pakaian) merupakan kebutuhan yang paling mendasar untuk setiap manusia sebagai makhluk sosial. Kegiatan melipat pakaian merupakan hal yang sangat umum dilakukan setiap individu sejak zaman dahulu. Hingga saat ini hampir disetiap rumah tangga, kegiatan melipat pakaian masih menggunakan cara tradisional, hal ini tentu menyita waktu dan tenaga. Apalagi jika pekerjaan tersebut dilakukan oleh pelaku usaha di bidang konveksi ataupun laundry, dimana jumlah pakaian yang perlu dilipat sangat banyak setiap harinya. Hal ini dapat berpotensi menghambat efektifitas waktu dalam urusan bisnis dan berpotensi meningkatkan biaya pengeluaran untuk membayar tenaga pekerja yang bertugas untuk melipat pakaian tersebut. Oleh karena itu, penelitian ini bertujuan untuk membuat sebuah simulasi alat pelipat pakaian otomatis dengan menerapkan konsep Finite State Automata (FSA). Penelitian ini diharapkan dapat menghasilkan suatu grammar atau tata bahasa yang tepat untuk perancangan sebuah simulasi alat pelipat pakaian secara otomatis.
SEGMENTASI PELANGGAN MENGGUNAKAN ALGORITMA K-MEANS BERDASARKAN MODEL RECENCY FREQUENCY MONETARY
Authors: Pramudiansyah Apip Pramudiansyah
Published: February 2022

Pelanggan merupakan sumber keuntungan bagi perusahaan seperti halnya pada bisnis di bidang ritel Pelanggan merupakan aset bagi perusahaan. Saat ini, perusahaan berlomba-lomba dalam memenangkan hati para pelanggan. Karena masing-masing pelanggan tidak hanya memiliki kebutuhan, preferensi harapan dan perilaku yang berbeda-beda namun juga profil pendapatan dan biaya yang berbeda maka sebuah perusahaan perlu memetakan tingkat loyalitas pelanggannya. Namun tidak adanya pengolahan data pelanggan yang telah dimiliki menjadikan perusahaan tidak mengetahui valuable dari pelanggan yang ada. Penetapan rencana strategi pemasaran seharusnya dapat dilakukan salah satunya dengan memanfaatkan valuable customer yang dimiliki. Pemanfaatan valuable customer dilakukan dengan menggunakan data mining, penerapan model Recency Frequency Monetary pada tahapan data preparation dapat membantu untuk melihat valuable dari masing-masing pelanggan. hasil pengujian menggunakan Elbow Method didapatkan titik siku terbaik yaitu sebanyak 4 klaster dan setelah dilakukan perhitungan menggunakan algoritma k-means maka dihasilkan sebanyak 38,4% atau berjumalah 557 pelanggan masuk kedalam kelompok kategori Platinum, 12,6% atau berjumlah 184 pelanggan kategori Gold, 22,7% atau berjumlah 330 pelanggan kategori Silver, dan 26.% atau berjumlah 378 pelanggan kategori Bronze.
La calle, espacio público moderador de la vida en las ciudades mexicanas
Authors:   Instituto Tecnológico de Zacatecas, Villa Fernández Jesús Arturo ,   Universidad Autónoma de Zacatecas
Published: February 2022

El propósito es interpretar a las ciudades como polos de inversión vista desde el turismo y sus recursos naturales para desencadenar un tipo de ciudad modelo. La mayoría de los planificadores se someten a variables de posición geográfica, topografía y clima que determinarán el diseño urbano para organizar una ciudad y sus habitantes. No obstante, es nulo el diseño urbano a partir de la autenticidad de sus actores y las calles como respuesta. Son atmósferas para conocer las entrañas del sistema urbano, que tiene vida desde su espacio público, ajustándose a interpretar vidas de los actores que prevalecen desde generaciones atrás y al mismo tiempo de voces que se manifiestan.
El nuevo estado de naturaleza mexicano
Authors:   Universidad Autónoma de Nuevo León, Ruiz José Fabián
Published: February 2022

El libro La formación del sistema político mexicano de Víctor López Villafañe apareció en 1986, pero recientemente volvió a publicarse en una tercera edición actualizada. Se retoman los acontecimientos previos a la etapa de 1988, a la vez que se examinan los hechos políticos y sociales más relevantes de la historia de México desde ese periodo hasta la actualidad.
Zapatismo, una grieta en el muro
Authors:   Universidad Autónoma de Zacatecas, Félix Pichardo Ana Lilia
Published: February 2022

Los zapatistas devienen de comunidades indígenas despojadas de tierras y de la libertad para gobernarse según la cultura de los pueblos originarios; producto de su organización y lucha lograron formar comunidades organizadas en gobiernos autónomos. Cuentan con una caja de herramientas provista de conceptos teóricos y trabajo colectivo que se usan como armas para analizar las entrañas del capitalismo, impulsar la resistencia política y construir la autonomía de los pueblos rebeldes. Ahora sus palabras resuenan con el propósito de reivindicar la autonomía que erigieron al fragor de su gesta social y de advertir sobre la inminencia de la crisis capitalista y los múltiples peligros que representa la Hidra para los pueblos y las organizaciones que se aprestan a luchar.
Diseño de antenas inteligentes
Authors:   , Marranghelli Ezequiel Alejandro
Published: February 2022

Los sistemas de comunicaciones inalámbricos utilizan arreglos de antenas para discriminar la dirección de arribo de las señales recibidas. Estos arreglos junto a los algoritmos de procesamiento asociados suelen denominarse Antenas Inteligentes. En aplicaciones de precisión o críticas de los Sistemas de Navegación por Satélite permiten rechazar interferencias, evitar rebotes de la propia señal y aumentar la potencia recibida. Naturalmente, un arreglo compacto y de pocos elementos es muy conveniente por su bajo costo y su practicidad de montaje. Sin embargo, el acoplamiento mutuo entre antenas no puede ser despreciado en estos casos. Pero, ¿cuáles son realmente las desventajas del acoplamiento mutuo?, ¿puede aportar alguna ventaja? Esta tesis muestra que una comprensión profunda del acoplamiento permite realizar diseños compactos, eficientes y con baja complejidad de procesamiento. Concretamente, se presenta una técnica novedosa de transformación que permite aplicar los mismos algoritmos utilizados bajo un modelo de arreglo ideal (antenas idénticas y no acopladas), sin alterar las propiedades estadísticas de las señales recibidas. Además, se ha diseñado, construido y validado experimentalmente un arreglo compacto y eficiente de cuatro antenas que, a través de esta transformación, es equivalente a un arreglo ideal con antenas a mayor distancia entre sí, aumentando su resolución espacial.
Proposta de indicadores de avaliação do PPSUS e de outros programas de fomento descentralizado sob gestão do CNPq
Authors: Oliveira Suzana , Bittencourt Gomes Carolina , Calabró Luciana
Published: February 2022

Resumo: A descentralização das políticas de Ciência, Tecnologia e Inovação tem sido uma estratégia adotada pelo Conselho Nacional de Desenvolvimento Científico e Tecnológico para redução das desigualdades regionais nessa área. Visando a redução das desigualdades na área específica de Ciência, Tecnologia e Inovação em saúde, o Ministério da Saúde criou, em 2004, o Programa Pesquisa para o SUS: gestão compartilhada em saúde. Para operacionalizar o Programa, o CNPq firma convênios com as Fundações de Amparo à Pesquisa nos estados. Assim como o PPSUS, há outros programas sob gestão do CNPq em que é utilizado também este mesmo instrumento com as FAPs. A ausência de indicadores de insumo e resultado para acompanhamento e avaliação das ações de fomento descentralizado suscitou a realização deste estudo cujo objetivo foi elaborar indicadores de insumo e resultado para o PPSUS e para outros programas de fomento descentralizado, baseados na técnica Conferência de Consenso, descrevendo o caminho percorrido nessa elaboração. Foi realizada uma pesquisa metodológica, de abordagem quali-quantitativa. A Conferência de Consenso propiciou, como resultado, a obtenção de duas Matrizes: uma contendo indicadores de insumo e resultado para o PPSUS e outra para os demais programas. Concluiu-se que apesar da dificuldade na tentativa de se obter indicadores comuns para as ações operacionalizadas por meio do fomento descentralizado, tendo em vista a diversidade de objetivos e arranjos específicos de cada programa, foi possível propor um rol de indicadores aos gestores do CNPq.
Palavras-chave: Indicadores de Ciência, Tecnologia e Inovação. PPSUS. Conferência de Consenso.
Experimentação em espaços não formais de educação: o ensino de conceitos científicos em um centro de educação ambiental
Authors: Fonseca de Souza Vanessa , De Azambuja Maraschin André , Maria Hartmann Ângela , Marques Martins Márcio
Published: February 2022

Resumo: O uso da experimentação tem sido considerado essencial no processo de ensino e aprendizagem, por despertar um forte interesse nos alunos. Levando em conta essa premissa, realizou-se uma pesquisa com o objetivo de avaliar como o desenvolvimento de experimentos demonstrativos em microescala e contextualizados em situações do cotidiano podem contribuir para a aprendizagem de conceitos científicos envolvidos no tratamento da água e, ao mesmo tempo, promover a reflexão dos visitantes em uma Estação de Tratamento de Água. O roteiro contemplou a abordagem dos conceitos de reação química, gravidade e separação de misturas. A pesquisa classifica-se como de natureza interpretativa, com análises qualitativa e quantitativa de questionários, respondidos por alunos do primeiro ano do Ensino Médio de duas escolas da rede pública estadual. Os resultados apontaram contribuições positivas à aprendizagem dos conceitos científicos e conscientização sobre o uso da água, trabalhados na visita e durante a experimentação demonstrativa. Argumentamos a favor do desenvolvimento de mais atividades nessa perspectiva, desde que sejam planejadas, considerando os objetivos de ensino e as especificidades de aprendizagem.
Palavras-chave: Estação de Tratamento de Água. Educação não formal. Ensino de ciências.
A educação básica e suas contextualizações: a tecnologia e a escola do campo
Authors: Dal Pizzol Andrieli , Santinello Jamile
Published: February 2022

Resumo: O presente artigo reflete sobre as contextualizações da Educação Básica e a inserção das tecnologias educacionais nos currículos das escolas do campo. Assim, pauta-se no objetivo central de refletir sobre o uso das tecnologias na educação do campo, no município de Pitanga-PR, enfocando nos pontos críticos a esse respeito, tanto nas escolas rurais como nas urbanas. Desse modo, aborda-se sobre conceitos e leis que versam sobre o direito à educação para os alunos dessa etapa educacional, com perspectivas tanto para os estudantes da zona urbana, como da zona rural. Apresenta-se ainda algumas questões voltadas à Educação Infantil para crianças de 4 a 5 anos de idade, matriculadas na pré-escola, além de explorar os dados e informações dos anos iniciais do Ensino Fundamental. Para tanto, optou-se pela pesquisa qualitativa, desenvolvida em forma de estudo de campo, revisão bibliográfica dos temas trabalhados e análise dos dados.
Palavras-chave: Educação Básica. Tecnologias. Escola do Campo.
A emergência de significados sobre o conceito de etnomodelagem durante uma ação formativa de professores de matemática
Authors: Eça José Lucas Matias de , Peixoto Jurema Lindote Botelho , Madruga Zulma Elizabete de Freitas
Published: February 2022

Resumo: A Etnomodelagem está se consolidando como constructo teórico-metodológico e político na área de Educação Matemática, quando permite a exploração de saberes matematizantes praticados em diferentes grupos sociais (Etnomatemática), normalmente minoritários, em caráter formal — traduzidos por meio de técnicas (Modelagem). As ações pedagógicas fundamentadas nessa abordagem podem permitir a construção de cenários educativos mais críticos envolvendo professores e estudantes. Para que isso se realize, os professores precisam conhecer e refletir sobre esse conceito. O objetivo deste estudo foi investigar os significados da Etnomodelagem que emergiram durante uma ação formativa com professores de Matemática de um município do interior da Bahia. Foi realizada uma ação formativa, em seis encontros, com todos os professores que lecionavam matemática nos anos finais do Ensino Fundamental no município, sendo que o corpus deste artigo é composto de apenas três professores que aceitaram responder a uma entrevista semiestruturada abordando aspectos da formação. Para análise dos dados, foi utilizada a Análise Textual Discursiva (ATD). Desta análise emergiram quatro categorias: processo formativo, docência, currículo e abordagem dialógica, sendo esta última analisada neste artigo. Os resultados apontaram que os professores participantes do processo formativo compreenderam a Etnomodelagem como uma abordagem metodológica que visa principalmente à valorização dos saberes matemáticos locais dos estudantes e da Matemática praticada pelos diversos grupos culturais e sociais aos quais pertencem.
Palavras-chave: Educação Matemática. Etnomodelagem. Formação de professores.
Representações do ser professor de química: identidade profissional e profissionalização docente
Authors: Dutra-Pereira Franklin Kaic , Bortolai Michele Marcelo Silva
Published: February 2022

Resumo: Ser professor, principalmente de Química, e pensar na identidade desse profissional é a que se volta a este estudo, na tentativa de contribuir com as discussões acerca das representações dadas sobre o pertencimento e o ser docente por licenciandos de química. Sendo assim, objetivamos com esta pesquisa compreender as representações de licenciandos concluintes e ingressantes de um curso de licenciatura em Química acerca do que pensam sobre ser professor(a) de Química. Como aspecto metodológico utilizamos da abordagem qualitativa e descritiva, com preceitos da pesquisa em representação social, com a participação de 30 licenciandos que estavam iniciando e/ou no final do curso de Licenciatura em Química de uma Instituição de Ensino Superior do interior da Bahia. Suas percepções foram submetidas à aplicação Web WordClouds, para criação da nuvem de palavras, evidenciando as significações mais relevantes. Para sistematizar e discutir os dados, realizamos a análise de conteúdo das expressões mais significativas dos grupos. Algumas expressões foram mais expressivas entre os dois grupos investigados, as quais versavam desde a cidadania, passando pela estratégia de ensinar ciências até os desafios da sociedade. Quanto às explicações dadas pelos participantes, emergiram duas dimensões predominantes: “Identidade docente e a profissionalização” e “Identidade docente e a formação para cidadania”. Podemos concluir, através das ideias partilhadas pelos futuros professores de Química, que o grupo percebe a importância da formação pedagógica realizada no intercâmbio entre a universidade e a escola caracterizando o papel social da docência e da profissionalização docente, sobretudo voltado para o viés da cidadania.
Palavras-chave: Representação Social. Ser professor de Química. Formação Inicial. Identidade Docente.
TiO2 insertion layer deposited before passivation to reduce etch damage on AlGaN/GaN HEMT
Authors: Qin Yanbin , Wang Quan , Chen Changxi , Xu Jiankai , Jiang Lijuan , Feng Chun , Xiao Hongling , Xu Xiangang , Wang Xiaoliang
Published: February 2022

Γ-gate has been used to increase the breakdown voltage of radio frequency (RF) devices, and the damage caused by gate pin etching has been studied. In this study, a TiO2 layer, acting as a protective layer, was inserted between the AlGaN barrier layer and SiN passivation layer. The AlGaN/GaN high-electron-mobility transistor (HEMT) with TiO2 had no kink effect in its output characteristic, and at high gate voltages, it demonstrated a higher transconductance than the HEMT without TiO2. The HEMT without TiO2 exhibited a more prominent saturation tendency for drain current. Additionally, the C–V test data show that the trap state density of the AlGaN/GaN interface of an AlGaN/GaN HEMT with TiO2 decreased compared with a HEMT without TiO2. DC and C–V test results show that the TiO2 layer can effectively reduce the etching damage of the material under the gate.
AD900 – archivio digitale del 900 letterario italiano
Authors: Magherini Simone
Published: February 2022

Realizzato nell'ambito dei due finanziamenti PRIN 2003-2006, il portale raccoglie e presenta i materiali dell'Archivio Palazzeschi dell'Università di Firenze, dell'Archivio Gozzano-Pavese dell'Università di Torino, dell'Archivio del Novecento in Liguria dell'Università di Genova, alcuni fondi dell'Archivio del Novecento dell'Università La Sapienza di Roma e dell'Archivio linguistico e cinematografico italiano (Aleci) di Alberto Raffaelli. Esso conserva manoscritti, lettere, foto, filmati in formato digitale visibili e consultabili on line, con possibilità di un'ampia gamma di ricerche sui dati e sui testi.
Pengembangan sistem informasi pelaporan sediaan jadi prekursor dan obat-obatan tertentu menggunakan Rapid Application Development
Authors: Setiawan Retno Agus , Octaviani Peppy
Published: February 2022

Penyalahgunaan narkotika dan psikotropika yang terus meningkat tidak terlepas dari mudahnya dalam mendapatkan prekursor narkotika. Belum adanya sistem pengawasan penggunaan sediaan jadi prekursor dan obat-obatan tertentu mengakibatkan jenis sediaan tersebut seringkali disalahgunakan. Tujuan dari penelitian ini adalah untuk mengembangkan prototipe sistem informasi pelaporan prekursor dan obat-obatan tertentu untuk memudahkan pengawasan terhadap distribusi prekursor di unit pelayanan kefarmasian. Prototipe sistem informasi pelaporan ini dikembangkan dengan menggunakan metode RAD (Rapid Application Development) dimana proses bisnis dirancang pada fase awal pengembangan dengan tujuan untuk memastikan kebutuhan pengguna. Penelitian ini berhasil mengembangkan prototipe sistem informasi pelaporan prekursor dan obat-obatan tertentu sesuai dengan kebutuhan penggunanya. Diharapkan prototipe yang dikembangkan dapat didemonstrasikan pada lingkungan yang relevan.
CLINICOPATHOLOGICAL STUDY OF POSTMENOPAUSAL BLEEDING IN A TERTIARY CARE HOSPITAL: UDAIPUR, RAJASTHAN.
Authors: Kumari Sharma Archana , Yerrapragada Mounika
Published: February 2022

INTRODUCTION: Postmenopausal bleeding (PMB) requires complete evaluation in order to identify and treat high risk patients and detect
malignancy. The aim of the present study was to investigate the clinical signicance and endometrial pathology in patients with postmenopausal
bleeding.
METHODS: In this prospective study, the data was obtained from 80 patients with PMB attending the OPD or admitted for evaluation under
obstetrics and gynaecology in PIMS , Udaipur. Written and informed consent was taken from all the patients enrolled in the study. They were
evaluated by history, clinical examination and investigations like transvaginal sonography, endometrial biopsy, fractional curettage, Pap smear
done for all subjects and the specimens collected was sent to the department of pathology for examination and reporting.
RESULTS: In patients with post-menopausal bleeding, atrophic endometrium was seen in 34%, proliferative endometrium in 12%, isthmic
endometrium in 1%, polyp in 4%, hyperplasia without atypia in 1%, with atypia in 45% endometrial carcinoma in 6% of the patients with PMB.
Benign conditions were seen in 94% and malignancy was seen in 2.5% cases.
CONCLUSION: Postmenopausal bleeding requires complete evaluation in terms of risk factors, etiology, endometrial pathology to identify the
women at risk of endometrial cancer. Obesity, hypertension, diabetes mellitus and age since menopause are the risk factors for PMB. By complete
assessment and treatment we can reduce the incidence of endometrial cancer in women with PMB.
ROLE OF VARIOUS SURGICAL INTERVENTIONS IN CHRONIC PANCREATITIS.
Authors: Yadav Rajesh , Kharmutee Geoffrey , Padekar Harshal , Senthil Gautham , Swami Aishwarya , Kazi Rufiat
Published: February 2022

BACKGROUND - Chronic pancreatitis is a progressive inammatory disease characterised by irreversible destruction of pancreatic tissue. An
acute attack of pancreatitis is characterised by severe pain in abdomen which in later stages leads to exocrine and endocrine pancreatic
insufciency. Patients with chronic pancreatitis suffer from a decreased quality of life due to chronic abdominal pain and often require hospital
admission for alleviating the symptoms. The only indication for surgery in such cases is pain and sometimes pancreatic insufciency.
METHODS AND MATERIAL - A prospective observational study on role of various surgical interventions in chronic pancreatitis was
conducted at Department of General Surgery, Grant Government Medical College, Sir J.J Group of Hospitals, Mumbai.64 patients of chronic
pancreatitis were enrolled into the prospective observational study and followed up over a period of 15 months.
Results – Out of 64 patients, 32 (50%) were treated conservatively, 15 (23.4%) underwent endoscopy and 17 (26.6%) underwent some surgical
intervention. Mean post operative pain score by visual analogue scale in the participants of the surgical intervention group was 4.82 while the
endoscopy group was 5.86.
Conclusion - The treatment of pain in Chronic Pancreatitis is a step-up approach i.e., conservative management, endoscopic therapy then surgical
intervention. Early surgical intervention, compared to the current step-up approach, may be better in terms of pain control and pancreatic function.
Total patients with initial endoscopic or conservative medical treatment undergoing surgical intervention at later stages were found to have better
outcome. It was seen that surgery is superior to endoscopy for pain control in patients with chronic pancreatitis. The complication rate and
readmission were also less after surgical intervention than endoscopic intervention. Interventional radiological techniques play an important role in
patient management for chronic pancreatitis who defer from surgery.
CLINICO-PATHOLOGICAL CORRELATION IN CLASSIFICATION OF LEPROSY
Authors: Mahanta Anita A , G Patil Anuradha , Maradi Spoorthy , Ahmed Mohd Shahnawaz
Published: February 2022

Background: Leprosy is a chronic granulomatous infection caused by Mycobacterium leprae. It is a leading cause of permanent disability. Most
commonly seen in tropical countries. India represents two thirds of the global burden. A total of nearly 3000 new cases were detected in Karnataka
in 2017-2018. Out of them 5% presented with grade II disability. It affects mainly the skin, nasal mucosa, and peripheral nerves. Aim: To study and
categorise types of leprosy histomorphologically and correlate them clinically. Materials and Methods: Skin biopsies of suspected leprosy cases
were received in the department of pathology, from April 2017 to March 2019 for a period of two years. Relevant clinical ndings were taken. A
total of 30 cases of leprosy were diagnosed. They were classied histopathologically using modied Ridley–Jopling's classication. Total Results:
number of cases studied were 30. Age group was found to be 20-70 years. Clinically patients presented commonly with hypo-anaesthetised, hypopigmented patches and nodules. 16 cases were of lepromatous leprosy, 2 cases of Borderline lepromatous leprosy, 2 cases of Borderline leprosy, 2
cases of Borderline tuberculoid leprosy, 6 cases of Tuberculoid leprosy and 2 Cases were of Erythema nodosum leprosum. Conclusion:
Lepromatous leprosy is the most common type in present study. Correlation between clinical, bacteriological, and morphological features is
required for accurate classication of Hansen's disease. Clinical detection and morphological diagnosis of early lesions remain challenging, and
the histological ndings should always be interpreted in correlation with clinical ndings. Histopathological examination is the gold standard to
diagnose and categorise leprosy to start appropriate treatment.
A RARE CASE OF INTRATEMPORAL FACIAL NERVE SCHWANNOMA: CASE REPORT
Authors: Kaur Jaspreet , Shaikh Sarfaraz
Published: February 2022

Schwannomas, are benign tumours arising from the nerve sheath. They are uncommon in the facial nerve and account for less than 1% of tumours
of temporal bone. (3) They can arise anywhere along the facial nerve from its origin in the cerebellopontine angle to its extra cranial ramications in
the parotid space. (1,2) Most commonly they involve the intra-temporal course of the nerve, with propensity for the geniculate ganglion.
CROSS SECTIONAL STUDY TO ASSESS THE DIAGNOSTIC ROLE OF HIGH RESOLUTION ULTRASOUND IN EVALUATION OF SHOULDER PAIN IN COMPARISON WITH MRI.
Authors: Gangwal Ashish , Prasad Swarnkar Chaturbhuj , Tiwari Raghav , Mendiratta Kuldeep
Published: February 2022

Background: Shoulder pain is third most common presenting complaint due to which a person visits Orthopedic clinic [1] and referred to the
radiodiagnosis department for the shoulder USG and MRI. Aims and Objectives: This study aims to assess the accuracy of high resolution
ultrasound with MRI ndings as gold standard.
Materials and method: 150 patients with shoulder pain referred to Department of Radiology fullling the inclusion criteria were included in the
study. USG shoulder and MRI was performed and ndings were recorded.. Results: Amongst 150 patients, 105 were males(70%) and 45 were
female(30%).The patient age ranged from 14 years to 80 yr. rotator cuff tears was the far most common pathology detected by USG ,later
conrmed by MRI . Conclusion: The presentstudy concludes that USG is as sensitive and specic to MRI in detection of shoulder joint pathology
as compare to MRI .
EFFICACY AND SAFETY OF REMDESIVIR IN INDIAN PATIENTS WITH MODERATE TO SEVERE COVID-19: RESULTS FROM THE OPEN LABEL PERIOD OF A PHASE II, RANDOMIZED CONTROLLED TRIAL
Authors: Kumar Roul Shishir , Rehman Hafeezunisa , Ajit Despande Saurabh , Dayal Shankar , D Pardhi Gitika , Mahajan Tejas , Gajakosh Mangesh , Adrak Pallavi , Tare Snehal , Gangurde Savita , Kumar Sahu Dinesh , Khobragade Ajay , Pisal Trupti , Sonawane Alpa , Malpatil Sharan , Reddy MV , Arke Avinash , Mishra Abhilash
Published: February 2022

BACKGROUND: Remdesivir has proved its antiviral efcacy on COVID-19 virus in-vitro, but its role in infected patients is still obscure.
OBJECTIVE:To evaluate the efcacy and safety of Remdesivir in COVID-19 patients with signicant pulmonary involvement.
STUDYDESIGN AND METHOD:We conducted a single center, two-arm, prospective, open-label, phase II study from June 2020 to December
2020 on COVID-19 patients (≥18 years), admitted at Jagjivan Ram Railway Hospital, Mumbai. The primary outcome was to evaluate the all-cause
mortality up to 28 days in COVID-19 patients; secondary outcome was to assess the length of hospital stay (LOHS) and duration of respiratory
supports, using PASS v11.0 software (19).
RESULTS:Overallmortality status at 28 dayswas notsignicant(62 (31.2%)in the remdesivir group vs 65 (32.5%)in the control group), and themean
LOHS was less in remdesivir arm which was statistically signicant in the female subgroup although the remdesivir group had delay in hospital
admission from the onset of the symptoms and statistically higher index IL6 values. Duration of invasive mechanical ventilation showed signicant
statistical difference among the study groups(4.7±1.18 daysin control vs 2.8±1.88 daysin remdesivir), and across both the genders. Hypertension and
diabetesmellitusfoundtobe themost commoncomorbiditiesinCOVID-19.Nosafetyconcernswere reportedinRemdesivirgroup.
CONCLUSION: Remdesivir was well tolerated without any adverse events, but did not show any signicant effect on COVID-19 survival rate,
however it decreases the length of hospital stay and duration of invasive ventilator support. More studies are needed to understand the effects of
Remdesivir in larger populations.
EFFECTIVENESS OF APPLYING MUD ON THE SCALP FOR DANDRUFF PROBLEM.
Authors: SC Abhilash
Published: February 2022

BACKGROUND: The aim of this study was to assess the effectiveness in controlling the dandruff in young peoples with the application mud on
the SCALP. Dandruff is a common complaint and suffers from up to 50% of people at some point in their lives and has caused a great deal of
discomfort. This condition is usually characterized by the presence of akes on the skin and hair, and by itching. Symptoms can vary, and severity
can range from mild growth, such as dry skin, to severe skin. Its reach and strength are great for young men.
METHOD: This was a randomized controlled trial study in which 20 young males with mild, moderate and severe dandruff were selected and
given the mud application on the scalp for 10 days continuously one day after another. The dandruff was tested using dandruff test strips and given
scores for the samples based on the severity of dandruff-test and post-test data's were collected and statistics were made and analyzed for
determining the effectiveness and to know how far the study is liable.
RESULT:There were marked difference in pre test and post test mean value and a satisfactory t-value was obtained which shows there is
improvement in the skin condition and reduction of dandruff after the 10 days of application of mud on the scalp.
CONCLUSION: Dаndruff is оne of the mаjоr рrоblems аmоng young studying аnd wоrking рeорle, beсаuse it mаy give а negаtive
соmроnent оf the fасiаl index. From this study we can see that the mud application is an effective way to control dandruff and improve the skin
condition of the SCALP,thereby mud is an easy and natural source of product to control skin conditions especaily dandruff
A RARE CASE OF HYDROPNEUMOPERICARDIUM
Authors: Sathishkumar P. , Bujjibabu P. , Sudha Rani Bomidi , Chakravarthi A.Naren
Published: February 2022

Hydro-pneumopericardium is an uncommon life threatening clinical/ radiological nding, constitutes an acute emergency that requires immediate
(3) surgical intervention . Here, we report a rare case of hydropneumopericardium secondary to foreign body impaction in oesophagus.
ViTaL: Verifying Trojan-Free Physical Layouts through Hardware Reverse Engineering
Authors: Ludwig Matthias , Bette Ann-Christin , Lippmann Bernhard
Published: February 2022

The semiconductor industry is heavily relying on outsourcing of design, fabrication, and testing to third parties. The threat of possibly malicious actors in this ramified supply-chain poses a risk for the integrity of integrated circuits (ICs) and hardware Trojans (HTs) are a heavily discussed topic in academia and the industry. A variety of pre- and post-silicon HT prevention and detection techniques has been suggested in prior works. Hardware reverse engineering has the potential to detect potential modification in physical layouts. Yet, there is no model to qualitatively and quantitatively rate the complex and expensive reverse engineering (RE) process addressing its inherent process aberrations and consequently provide a tool for layout verification. The ViTaL framework introduces a statistical validation technique, based on physical layout verification through RE and considers all potential sources of errors. The golden-model based framework is technology-agnostic, scaleable, and user input is optional. For the first time, results of fine pitch metallization layers of a CMOS 40nm process node IC are presented quantitatively and the limitations and possibilities are discussed.
Multibranch Machine Learning-Assisted Optimization and Its Application to Antenna Design
Authors: Weiqi Chen , Wu Qi , Yu Chen , Hong Wei , Wang Haiming
Published: February 2022

Many full-wave electromagnetic (EM) simulations are needed to design an antenna meeting certain requirements, which involves a considerable computational burden. A multibranch machine learning-assisted optimization (MB-MLAO) method is proposed to dramatically reduce the computational complexity involved in this task. This method is then applied to antenna design and worst-case performance (WCP) searching under a practical manufacturing tolerance. In the conventional Gaussian process regression (GPR)-based MLAO method, a lower confidence bound (LCB) prescreening strategy with an empirical LCB constant is used to weigh the predicted value and predicted uncertainty. Using a variable-fidelity machine learning method, an adaptive LCB variable, and a retraining and repredicting method, the proposed MB-MLAO method can strike a delicate balance between exploitation and exploration in searching. Moreover, variable-fidelity data from full-wave EM simulations are used in the deep GPR machine learning method to further reduce the computational burden. Finally, two test functions and four types of antennas are selected as examples to illustrate the superiority of the proposed MB-MLAO method.
The Nigerian Solar Photovoltaic Industry; Policies and Schemes for achieving Grid parity
Authors: Udosen David
Published: February 2022

With increased awareness on the debilitating effects of greenhouse gas emissions (resulting majorly from the combustion of fossil fuels) coupled with the increasing need to explore more sustainable energy sources to cater for the proliferating global energy needs, there would be no better time to pursue a cause in solar photovoltaic (PV) energy generation. Thankfully, due to subsidies and technological advancement, PV systems’ cost are at an all-time low. However, the government and various stakeholders have roles to play in ensuring competitiveness of the PV industry with conventional generating companies (Gencos). This paper outlines the necessary policies and schemes that will aid the Nigerian PV industry in achieving competitiveness and Grid parity (traditionally defined as a situation where the generation cost of Solar PV electricity equals the cost of conventional electricity sources) with conventional Gencos and retail electricity prices.
Resolving Range and Velocity Ambiguity Effectively and Efficiently with GPU
Authors: WANG Zhifei
Published: February 2022

Resolving the ambiguity in both range and velocity domain is one of the essential issues for the pulse Doppler (PD) radars using medium pulse repetition frequency (PRF) waveforms. The existing solutions are mainly based on the Chinese Remainder Theorem (CRT) and its variations and extensions, but these algorithms typically have an unsatisfactory accuracy and are highly complex in computation, especially for the case of a large false-alarm rate. In this work, we proposed a new approach to tackle with ambiguity based on the partial distance matrices (PDM) and implemented it on the NVIDIA graphics processing unit (GPU) platform. The evaluations based on both Monte-Carlo simulations and real measured data present the advantages of the proposed approach in accuracy and efficiency. The results also show the proposed approach can be utilized as a real-time algorithm even for a low-threshold detection scheme.
Decentralized Multi-Agent Advantage Actor-Critic
Authors: Barnes Scott
Published: February 2022

We present a decentralized advantage actor-critic algorithm that utilizes learning agents in parallel environments with synchronous gradient descent. This approach decorrelates agents’ experiences, stabilizing observations and eliminating the need for a replay buffer, requires no knowledge of the other agents’ internal state during training or execution, and runs on a single multi-core CPU.
Detecting and Mitigating the Dissemination of Fake News: Challenges and Future Research Opportunities
Authors: Hakak Saqib , Shahid Wajiha , Jamshidi Bahman , Khan Wazir Zada , Khan Muhammad Khurram , Isah Haruna
Published: February 2022

In this work, we have highlighted the recent developments on Fake news detection.
Privacy-Preserving British Sign Language Recognition Using Deep Learning
Authors: Hameed Hira , Usman Muhammad , Khan Muhammad Zakir , Hussain Amir , Abbas Hasan T. , Imran Muhammad Ali , Abbasi Qammer H.
Published: February 2022

Sign language is a mean of communication between the deaf community and hearing people, who use hand gestures, facial expressions, and body language to communicate. It has the same level of complexity as spoken language, but it does not employ the same sentence structure as English. The motions in sign language are made up of a range of distinct hand and finger articulations that are occasionally synchronized with the head, face, and body. Existing sign language recognition systems are mainly camera-based, which have fundamental limitations of poor lighting conditions, potential training challenges with longer video sequence data, and serious privacy concerns. This study presents a contact-less and privacy-preserving British sign language (BSL) Recognition system using Radar and deep learning algorithms, namely Inceptionv3, VGG16, and VGG19. The six most common emotions are considered, namely confused, depressed, happy, hate, lonely, and sad. The collected data is represented in the form of spectrograms. The deep learning models, InceptionV3, VGG19, and VGG16 then extract spatiotemporal features from the Spectrogram. Finally, the BSL emotions are accurately identified by classifying the Spectrograms, into the considered emotions signs. The simulation results demonstrate that a maximum classifying accuracy of 93.33% is obtained using VGG16.